WO2011019125A1

WO2011019125A1 - Participatory place recognition method and method for operating a wireless terminal using a wireless lan received signal strength indicator

Info

Publication number: WO2011019125A1
Application number: PCT/KR2010/001065
Authority: WO
Inventors: 한동수; 이민규
Original assignee: 한국과학기술원; (주)브이아이소프트
Priority date: 2009-08-12
Filing date: 2010-02-22
Publication date: 2011-02-17

Abstract

The present invention relates to a method for determining an indoor place at which a wireless terminal is located on the basis of user participation, and in particular, to a place recognition method using a wireless LAN received signal strength indicator (RSSI) for recognizing a place at which the wireless terminal is located by providing a signal fingerprint according to an RSSI of a wireless LAN signal together with a place label inputted by a user to a place server, and by recognizing a place according to a signal fingerprint generated later using the provided signal fingerprint. Therefore, according to the present invention, since an indoor place including a wireless terminal position can be indicated without coordinates of an access point (AP) and without a map of the indoor place, system construction is made convenient and place recognition is simplified. The present invention relates to determining the location of a wireless terminal using a wireless LAN RSSI, to an operating method in accordance with the determination, and to a method for automatically configuring the operation. Particularly, a signal fingerprint according to an RSSI of a wireless LAN signal is stored in connection with a place label inputted by a user, the place including the location of the wireless terminal is determined according to a signal fingerprint generated later using the stored signal fingerprint, and the wireless terminal is operated accordingly. Thus, according to the present invention, since an indoor place including the location of a wireless terminal can be determined without coordinates of an AP, it is not necessary to check coordinates of the AP beforehand for place recognition, and thus a system for recognizing a place can be easily constructed. Further, since a place including the location of a wireless terminal is determined without calculating a degree of attenuation of a wireless LAN signal due to indoor walls or a degree of distortion due to furniture, etc., the accuracy of determining a place can be improved.

Description

Participation type recognition method using wireless LAN reception strength and operation method of wireless terminal

The present invention relates to a method of determining a location of a room where a wireless terminal is located based on user participation. In particular, the present invention relates to a wireless method using a signal fingerprint according to a received signal strength indicator (RSSI) of a wireless LAN signal. The present invention relates to a place recognition method using a wireless LAN reception strength to recognize a place in a room where a terminal is located.

In addition, the present invention receives a signal fingerprint (Signal Fingerprint) according to the received signal strength (RSSI; Received Signal Strength Indicator) of the WLAN signal and the information of the place where the signal fingerprint was collected by the user to the wireless terminal, the <signal The present invention relates to a method of determining a location of a wireless terminal according to a newly generated signal fingerprint using a database including a pair of fingerprint-place>.

In addition, the present invention relates to a method for performing an operation in a wireless terminal according to the location of the wireless terminal determined using the reception strength of the WLAN signal.

The present invention also relates to a method of automatically setting an operation of a wireless terminal using the reception strength of a WLAN signal.

Many techniques have been developed to use a Global Positioning System (GPS) to track the location of a moving device or to determine the location of an object. However, indoor urban spaces such as cafes, restaurants, shops, theaters, museums, etc., have a weak reception strength of GPS satellite signals and thus are difficult to be used for identifying a location.

In order to track the location of a device moving in an indoor urban space, a method using a WLAN AP (Access Point) which is widely distributed in a general indoor urban space has been proposed. This is to measure the position of the wireless terminal according to the signal strength from the wireless LAN AP installed in the room, to check the coordinates of the wireless terminal on the map with respect to the indoor space.

This requires a map of the indoor space and the coordinates where the WLAN AP is located, and the coordinates of the confirmed wireless terminal can only know the location when it is displayed on the map of the indoor space, and the coordinates themselves indicate the location. The disadvantage is that it can not be recognized.

In this conventional technology, there is a difficulty in providing a map of the indoor space and the coordinates where the WLAN AP is located in order to indicate the location of the wireless terminal indoors. In addition, there is a need for a server for determining and providing a location, which increases the cost for providing a system.

In addition, since the measured position of the wireless terminal is indicated by coordinates, it is difficult to recognize the position when it is not displayed on the map.

In addition, there is a hassle to calculate the coordinates according to the degree to which the WLAN signal is attenuated by a wall in the room or distorted by furniture.

An object of the present invention is to provide a method and apparatus for recognizing or indicating a location of a wireless terminal indoors without having a map of an indoor space and coordinates where a WLAN AP is located.

In addition, the present invention is to provide a method and apparatus that can recognize or indicate the location of the wireless terminal even if not displayed on the map.

In addition, the present invention is to provide a method and apparatus capable of recognizing or indicating the position of a wireless terminal even if the wireless LAN signal is attenuated by a wall of the room or distorted by furniture.

It is also an object of the present invention to provide a method and apparatus for facilitating the construction of a database necessary for recognizing or indicating the location of a wireless terminal.

In addition, the present invention is to provide a method for determining the location of the wireless terminal using the reception strength of the WLAN signal without having a map of the indoor space and the coordinates where the WLAN AP is located.

In addition, the present invention is to provide a method for performing the operation in the wireless terminal according to the location of the wireless terminal determined using the reception strength of the WLAN signal.

In the place recognition method using the wireless LAN reception strength of the present invention, the wireless terminal collects the information about the AP and the reception strength measured by the wireless terminal at an arbitrary position for a wireless signal from at least one AP (Access Point) Receives a signal fingerprint generated according to the position of the, and the fingerprint and signal fingerprint set generated according to the position of the wireless terminal received-The signal fingerprint set is a signal fingerprint generated at a specific place according to the position of the wireless terminal It is registered in advance in the server in association with the place identifier assigned to the place label indicating the specific place. Is compared, and a place identifier corresponding to a signal fingerprint similar to a signal fingerprint generated according to the position of the wireless terminal among the set of signal fingerprints is determined by the comparison, and the place where the wireless terminal is located according to the determined place identifier. Place label of (Place Label) is characterized in that to deliver.

In addition, the place recognition method using the wireless LAN reception strength of the present invention, the reception strength and information about the AP simultaneously measured by at least one AP (Access Point) for the wireless signal from the wireless terminal of any location A signal fingerprint is collected and generated according to the location of the wireless terminal, and a signal fingerprint and a signal fingerprint set generated according to the location of the wireless terminal are compared. The place identifier corresponding to the generated signal fingerprint is determined, and the place label of the place where the wireless terminal is located is determined according to the determined place identifier.

In addition, the place recognition method using the wireless LAN reception strength of the present invention, calculates the mean value and standard deviation of the received strength for the same AP from the signal fingerprint corresponding to the same place identifier among the set of signal fingerprints And transmitting the average and standard deviation of the received strength for each AP corresponding to each of the place identifiers, and by using the signal fingerprint generated according to the position of the wireless terminal, It can be used to calculate the probability to be included in the location indicated by the.

In addition, the place registration method using the wireless LAN reception strength of the present invention, generated by gathering the information about the AP and the reception strength measured according to the position of the wireless terminal for the radio signal from at least one AP (Access Point) Receives a signal fingerprint, receives a Place Label of the place containing the location of the wireless terminal when the received signal fingerprint is generated, the place identifier with a unique value in the server to the received place label It is characterized in that the registration to the server with the received signal fingerprint.

In addition, the method of contributing to the WLAN signal fingerprint using the location label of the present invention, the reception strength measured by the wireless terminal at an arbitrary position for the wireless signal from the access point (AP) at least one or more information about the AP Collect and generate a signal fingerprint according to the location of the wireless terminal, and receives and transmits a place label of a place including the location of the wireless terminal when the reception strength is measured, the transmitted signal The fingerprint and the location label may be registered on the server.

In addition, the WLAN signal fingerprint contribution method using the location label of the present invention, the reception strength and information on the AP at the same time measured by at least one AP (Access Point) for the radio signal from a wireless terminal of any location Transmits a signal fingerprint to be generated according to the location of the wireless terminal, receives a place label of a place including the location of the wireless terminal when the reception strength is measured, and transmits the generated location fingerprint. It is characterized in that the signal fingerprint and the transmitted place label is registered in the server.

In addition, the location confirmation method using the wireless LAN reception strength of the present invention, the radio signal from the at least one AP (Access Point) gathers the reception strength and information about the AP measured by the wireless terminal at an arbitrary position; A signal fingerprint is generated and transmitted according to the location of the wireless terminal, and a place label of a place including the location of the wireless terminal is determined according to the transmitted signal fingerprint.

In addition, the location confirmation method using the wireless LAN reception strength of the present invention, receiving the average and standard deviation of the received strength for each AP (Access Point) corresponding to each place identifier calculated from the set of signal fingerprint registered in the server, Receives the received strength measured by the wireless terminal at a certain position for the radio signal from at least one AP and information about the AP to generate a signal fingerprint according to the location of the wireless terminal, and to each received location identifier When the calculated probability is the largest by calculating the probability that the location of the wireless terminal is included in the location indicated by each place identifier by using the average and the standard deviation of the received strength for each AP and the generated signal fingerprint The location of the wireless terminal includes a place label of a place indicated by a place identifier corresponding to the variance and standard deviation used in the It is characterized by determining the place label of the place.

In addition, the location confirmation method using the wireless LAN reception strength of the present invention, the reception strength and the information about the AP simultaneously measured by at least one AP (Access Point) for the wireless signal from the wireless terminal of any location The signal fingerprint is generated according to the location of the wireless terminal, and the place label of a place including the location of the wireless terminal is determined according to the generated signal fingerprint.

In addition, the operation method of the wireless terminal using the wireless LAN reception strength of the present invention, generating a signal fingerprint by collecting the received strength measured at the location where the wireless terminal is located for the wireless signal from at least one AP (Access Point) And receiving a place label of a place where the wireless terminal is located when the reception strength is measured, and a signal fingerprint generated according to the position of the wireless terminal is associated with the received place label and wirelessly. The terminal is stored in the terminal as a set of signal fingerprints, and the operation or application to be executed according to the place is set in association with the place label to prepare the operation or application of the wireless terminal to be executed at a specific place corresponding to the place label. Characterized in that.

In addition, the operation method of the wireless terminal using the wireless LAN reception strength of the present invention, generating a signal fingerprint by collecting the received strength measured at the location where the wireless terminal is located for the wireless signal from at least one AP (Access Point) And comparing a signal fingerprint and a signal fingerprint set generated according to the location of the wireless terminal, wherein the signal fingerprint set is a set of signal fingerprints previously stored in the wireless terminal in association with a place label indicating a specific place. A placemark associated with a signal fingerprint similar to a signal fingerprint generated according to the position of the wireless terminal among the set of signal fingerprints is determined by comparison, and an operation or an application of the wireless terminal preset in connection with the determined place label is determined. To be executed.

In addition, the method for automatically setting the operation of the wireless terminal using the wireless LAN reception strength of the present invention, at least one or more signal fingerprints stored in the wireless terminal-the signal fingerprint is a wireless terminal for the radio signal from the access point (AP) is at least one or more The signal fingerprint set including the received strength measured at the location where the location is located and information on the corresponding AP-The signal fingerprint set is connected to each other in conjunction with a Place Label indicating a specific place in advance the wireless Is a set of signal fingerprints stored in the terminal, and receives and stores the received fingerprint fingerprint, and sets an operation or an application to be executed according to a location in association with a place label indicating the place to establish the radio at a specific place corresponding to the place label. Characterized in that the operation or application of the terminal is prepared to run do.

In addition, the method for automatically setting the operation of the wireless terminal using the wireless LAN reception strength of the present invention, at least one signal fingerprint received and stored from the wireless terminal-the signal fingerprint is at least one or more of the wireless signal from the AP (Access Point) It is generated by gathering the reception strength measured at the location where the wireless terminal is located and information about the AP-Signal fingerprint set including-The signal fingerprint set is associated with a Place Label (Place Label) indicating a specific place Is a set of signal fingerprints stored in advance in the wireless terminal-and transmits part or all of the fingerprints, and the operation or application of the wireless terminal corresponding to the location label is executed at a specific place indicated by the location label. Transmit at least one or more operation settings prepared in association; If the signal by the new fingerprint generated according to the terminal position a place label indicating a place where the wireless terminal is located is determined, characterized in that so that the operation of the wireless terminal or applications executed corresponding to the location label.

The present invention can recognize or represent a place including the location of the wireless terminal in the room without the coordinates to the AP, there is no need to check the coordinates of the AP in advance for the recognition of the place to facilitate the construction of a system for place recognition There is.

In addition, the present invention can recognize or represent a place including the location of the wireless terminal in the room without a map of the indoor space has the effect of simplifying the system construction and easy place recognition.

In addition, it is possible to indicate a place including the location of the wireless terminal without calculating the degree to which the WLAN signal is attenuated by a wall in the room or distorted by furniture or the like. This has the effect of improving accuracy.

In addition, the present invention enables the user to contribute to the signal fingerprint generated by the wireless LAN reception strength, there is an effect that the construction cost and time for the data for place recognition is reduced.

In addition, the present invention can automatically set the operation or application of the wireless terminal to be executed according to the determined location has the effect of increasing the convenience of the user.

1 is a layout view of an AP and a wireless terminal in a preferred embodiment according to the present invention.

2A is a flowchart illustrating a method for contributing to a WLAN signal fingerprint using a place label in a preferred embodiment of the present invention.

Figure 2b is a flow chart showing a location confirmation method using the wireless LAN reception strength in a preferred embodiment according to the present invention.

Figure 2c is a flow chart illustrating a place recognition method using the wireless LAN reception strength in a preferred embodiment according to the present invention.

3 is a block diagram for a place recognition in the first embodiment according to the present invention.

4 is a detailed view showing in detail the configuration diagram in the first embodiment according to the present invention;

Fig. 5 is a table structure diagram in the registration place storage unit in the first embodiment according to the present invention.

Fig. 6 is a flowchart of the signal fingerprint contribution from the wireless terminal in the first embodiment according to the present invention.

Fig. 7 is a flowchart for confirming a place from a wireless terminal in the first embodiment according to the present invention.

8 is a flowchart for confirming a place in a wireless terminal in the first embodiment according to the present invention;

9 is a schematic diagram showing a method for determining reliability for a determined place in the first embodiment according to the present invention.

10 is a block diagram for a place recognition in the second embodiment according to the present invention.

Fig. 11 is a detailed diagram showing in detail the construction diagram in the second embodiment according to the present invention.

12 is a layout view of an AP and a wireless terminal in a preferred embodiment according to the present invention.

Fig. 13 is a configuration diagram for performing a place determination and operation method in a third embodiment according to the present invention.

Fig. 14 is a flow chart showing a place determination and operation method in a third embodiment according to the present invention.

Fig. 15 is a detailed diagram showing in detail the construction diagram in the third embodiment according to the present invention.

Fig. 16 is a table structure diagram of the terminal storage unit in the third embodiment according to the present invention.

Fig. 17 is a flowchart of a preparation step for determining location and setting operation in the third embodiment according to the present invention;

18 is a flowchart of a service step using place determination and operation setting in the third embodiment according to the present invention;

Fig. 19 is a block diagram for automatic setting in the fourth embodiment according to the present invention.

20 is a flowchart for automatic setting in the fourth embodiment according to the present invention.

Fig. 21 is a detailed diagram showing in detail the construction diagram in the fourth embodiment according to the present invention;

110, 120, 130, 140, 150, 160, 170, 620, 630, 670: AP (Access Point)

210, 220, 230, 240, 720: wireless terminal 300, 800: place server

123, 623: AP information storage unit 125, 721: wireless signal transmitter

222, 624: reception strength measurement unit 224, 807: signal fingerprint generation unit

226: communication unit 228, 728: place input unit

229: terminal storage unit 301, 801: transmission and reception processing unit

302, 802: signal fingerprint registration unit 303, 803: signal fingerprint comparison unit

305, 805: registration place storage unit 627: reception strength transmission unit

1110, 1120, 1130, 1140, 1150,

1160, 1170, 1620, 1630, 1670: AP (Access Point)

1210, 1220, 1230, 1240, 1720: wireless terminal

1123 and 1623: AP information storage unit 1125 and 1721: wireless signal transmitter

1222, 1624: reception strength measurement unit 1224, 1724: signal fingerprint generation unit

1225, 1725: signal fingerprint comparison unit 1226, 1726: communication unit

1227, 1727: terminal execution unit 1228, 1728: terminal input unit

1229 and 1729: terminal storage unit 1300: place server

1301, 1801: Transmission and reception processing unit 1305: Registration place storage unit

1800: configuration server 1805: configuration storage unit

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a layout view of an AP and a wireless terminal in a preferred embodiment according to the present invention. On one floor of the building, spaces such as rest rooms, cafes, exhibition halls, beauty salons, restaurants, shops, corridors, etc. are arranged, and

APs

110, 120, 130, 140, 150, 160, 170 are provided.

Wireless terminals

210, 220, 230, and 240 having a network interface card for wireless LAN access in a building transmit and receive wireless signals with the AP at arbitrary locations.

The strength of a signal in a room may vary depending on obstacles such as walls, furniture, and the like, and the value of a signal received from a wireless terminal or an AP may change according to surrounding influences. Although the reception strength is measured at the same position, the value may vary from time to time. Therefore, it is said that the accuracy of converting the reception strength directly to the distance between the wireless terminal and the AP and estimating the position of the terminal by triangulation using the distances from the various APs thus converted is low.

As such, the reception strength of the wireless signal transmitted from the AP is measured differently according to the location of the wireless terminal, and a signal fingerprint is generated by collecting the reception strength and information on the corresponding AP from at least one or more APs. The signal fingerprint thus generated has different values according to the location of the wireless terminal. The more similar the reception strength from each AP included in the signal fingerprint is, the closer the position of the wireless terminal is when the corresponding signal fingerprint is generated. have.

Therefore, the place recognition method using the wireless LAN reception strength to be described through the preferred embodiment according to the present invention includes a signal fingerprint generated using the strength of the received wireless signal and the location of the wireless terminal is included. A place label indicating a place is contributed by linking a place label, and the place label including the location of a wireless terminal which generates a signal fingerprint later can be determined using the contributed signal fingerprint and the place label.

The contribution using the signal fingerprint and the location label is not only performed by the user who wants to confirm the location including the location of the wireless terminal, but includes a signal fingerprint generated according to the location of the wireless terminal and the corresponding location. All you have to do is send the place label of the place to the server so that it is registered as data for place confirmation. Therefore, it may be performed in advance at any location in the building by an administrator who wants to provide a place identification service to a specific building or area.

In addition, the more signal fingerprints contributed, the higher the probability that the determined location label matches the location including the actual location of the wireless terminal. In addition, it is possible to check a place including the location of the wireless terminal without calculating the location of the AP, the distance to the AP, and can be identified by a place label indicating a specific place instead of coordinates, so the map of the building is not necessary. It can reduce the burden on the system for location recognition.

In addition, although only the AP for WLAN access is used for location recognition in FIG. 1, if the location is fixed and transmits / receives a wireless signal to measure its strength, even if it is not used for network connection, the location recognition of the wireless terminal is used. It may be included in the AP used for.

2A to 2C are flowcharts illustrating a place recognition method using WLAN reception strength in a preferred embodiment according to the present invention. Detailed descriptions of each process will be provided later, and a schematic sequence thereof will be described.

2A is a flowchart illustrating a method for contributing to a WLAN signal fingerprint using a location label in a preferred embodiment according to the present invention. By generating and transmitting a signal fingerprint according to the location of the wireless terminal (S10) and inputting a location label of a location including the location of the wireless terminal (S15), the location label indicating that the signal fingerprint measured at an arbitrary location indicates a specific location. To be registered in conjunction with The process of inputting the location label of S15 will be described in detail later with reference to FIG. 6.

Figure 2b is a flow chart showing a location confirmation method using the wireless LAN reception strength in a preferred embodiment according to the present invention. By generating a signal fingerprint according to the position of the wireless terminal (S20) and transmitting the generated signal fingerprint (S25) requesting confirmation of the location including the location of the wireless terminal, the place label indicating the confirmed place is a wireless terminal It may be displayed on or transmitted to the place where the wireless terminal is located to be used by another program, it is also possible to have a program divided according to the place to be executed in the wireless terminal.

2C is a flowchart illustrating a place recognition method using WLAN reception strength in a preferred embodiment according to the present invention. First, the signal fingerprint generated according to the location of the wireless terminal is transmitted from the wireless terminal or the AP (S30), and the request received together with the signal fingerprint is a contribution of the signal fingerprint for the place recognition or not of the place using the signal fingerprint of the wireless terminal. Check whether it is OK (S33).

When the request from the wireless terminal is a contribution of the signal fingerprint, the place label is received through the wireless terminal (S40), and a place label identifier (Place Label Identifier) is assigned to the corresponding place label (S42) and registered in association with the registration place table. (S44), so that it can be compared with a signal fingerprint to be transmitted with a later place confirmation request. The signal fingerprints registered in the server form a set of signal fingerprints to be compared with the signal fingerprints generated according to the position of the wireless terminal.

If the request from the wireless terminal is a place check using the signal fingerprint, the received signal fingerprint is compared with the signal fingerprint set registered in the server (S50) and the place identifier corresponding to at least one or more similar fingerprint fingerprints among the signal fingerprint sets described above. In operation S52, the location including the location of the wireless terminal may be identified. One or more similar fingerprints may be determined or a plurality of signal fingerprints may be determined. By transmitting the location label corresponding to the location identifier thus determined to the server for the execution of the wireless terminal or another program (S54), the place recognition method by the place confirmation request of the wireless terminal is completed.

3 to 8, the present invention collects the reception intensity measured by the wireless terminal at an arbitrary position and information on the corresponding AP for a wireless signal from an access point (AP) to recognize a location including the location of the wireless terminal. The first embodiment according to the present invention will be described in detail. 3 is a block diagram of a place recognition in the first embodiment according to the present invention. The wireless terminal 220 may receive a radio signal transmitted from the AP (120, 130, 170) fixed at a specific position at any position and measure the reception strength.

Even if the AP is connected to different communication networks, such as the communication network 1 410 and the network 2 420 of FIG. 3, the wireless terminal can receive the radio signal transmitted therefrom and measure the reception strength thereof. Even if it is not used for network connection, it can be used for place recognition in the first embodiment according to the present invention. In addition, although the signal fingerprint is configured to be transmitted from the wireless terminal to the place server through the communication network 1 410, it is understood that the network for transmitting the signal fingerprint to the place server also includes the case of using another communication network not shown in FIG. shall.

4 is a detailed diagram showing in detail the configuration diagram in the first embodiment according to the present invention. The wireless terminal 220 includes a reception strength measurement unit 222, a signal fingerprint generator 224, a communication unit 226, a place input unit 228, and a terminal storage unit 229. The AP includes an AP information storage unit 123 and a wireless signal transmitter 125. The place server also includes a transmission / reception processing unit 301, a signal fingerprint registration unit 302, a signal fingerprint comparison unit 303, and a registration place storage unit 305.

First, as the radio signal transmitter 125 of the AP transmits a radio signal for WLAN communication, it should be understood that the radio signal for WLAN communication is not only referred to as described above. In transmitting the radio signal, the radio signal may be transmitted together with information on the AP stored in the AP information storage unit 123, and may be transmitted to the AP stored in the AP information storage unit 123 by a request from the wireless terminal. You can also respond to information about this.

As such, when a radio signal is transmitted from an AP fixedly installed around the radio terminal, the reception strength measurement unit 222 of the radio terminal receives the radio signal to measure the reception strength of each signal, and generates a signal fingerprint. It delivers to the unit 224 to link each received radio signal and information about the AP that transmitted the radio signal to make a package. The signal fingerprint thus generated is transmitted to the transmission / reception processing unit 301 of the place server through the communication unit 226 of the wireless terminal, and the transmission / reception processing unit 301 determines whether the request of the wireless terminal using the signal fingerprint is a contribution of the signal fingerprint. It determines whether it is OK and processes the signal fingerprint accordingly. In addition, the transmission / reception processing unit 301 may transmit not only a request from the wireless terminal but also a result processed by the location server to the wireless terminal or another server.

The signal fingerprint registration unit 302 receives a place label indicating a place including a location of the wireless terminal that generated the received signal fingerprint when the request from the wireless terminal is a contribution of the signal fingerprint, and receives the place label 228. The place identifier is assigned to the label and stored in the registration place storage unit 305 in association with the received signal fingerprint. In this way, the place identifiers are used to distinguish the same place labels even if they are different places, and when the place labels are directly used as place identifiers, the same place labels must not be registered. do.

Even if duplicated place labels are registered in the registered place storage unit, if it is confirmed that they are different places through the wireless terminal, different place identifiers are assigned, thereby giving a place label easily recognized by the user and at the same place. Even labels can indicate different places, thereby increasing convenience and accuracy of place recognition.

The signal fingerprint comparing unit 303 compares the received signal fingerprint with the signal fingerprint stored in the registration place storage unit 305 when the request of the wireless terminal is the place confirmation, and the signal fingerprint received in the registration place storage unit 305. The place identifier associated with the signal fingerprint most similar to the above is determined, and the place label indicated by the place identifier may be transmitted to the wireless terminal or another server to be displayed or used. The comparison between the signal fingerprints by the signal fingerprint comparison unit 303 will be described in detail later with reference to FIG. 7.

The terminal storage unit 229 downloads the information on the signal fingerprint registered from the place server in order to determine the location including the location of the wireless terminal in the wireless terminal and caches it so that it can be used in the wireless terminal. Checking the place within will be described in detail later with reference to FIG. 8.

The registration place storage unit 305 registers and stores the signal fingerprints generated in the wireless terminal and contributed to the place server together with the place label of the wireless terminal, and newly generated and received for the confirmation of the place. The signal fingerprint stored in 305 is provided to be compared. Various tables stored in the registration place storage unit 305 will be described in detail later with reference to FIG. 5.

5 shows a table constructed in the registration place storage unit 305 in the first embodiment according to the present invention. First, the AP table is a wireless terminal receives and stores information about the AP received while measuring the received strength of the radio signal, and includes the AP identifier, manufacturer, MAC address and the like. The AP identifier may use the MAC address as it is, and may be used so as not to be duplicated in the registration place storage unit 305. In addition, when the AP changes a fixed location, the place server is notified whether the change is made, so as to remove the received strength from the AP within the signal fingerprint stored in the registration place storage unit 305, the newly contributed signal The reception strength from the AP in the fingerprint can be used to determine the location of the wireless terminal.

The signal fingerprint table receives the signal fingerprint generated according to the location of the wireless terminal gathered by linking the received strength measured by the wireless terminal at an arbitrary position with respect to the information on the AP for the wireless signal from the AP, and stores it in the registration place table. It is. As shown in FIG. 5, the AP table is separately provided, and only the AP identifier is stored in the signal fingerprint table in association with each other, thereby increasing the utility and flexibility of data storage.

The place label table stores a place label received from the wireless terminal and stores the place label in association with a place identifier given a unique value in the registration place storage unit 305. The registration place table registers the signal fingerprints contributed by the wireless terminal by storing the signal fingerprints transmitted from the wireless terminal and the place identifiers assigned to the received place label, and the place fingerprints associated with the registered signal fingerprints. Allows you to check the location label of the identifier.

Fig. 6 shows a flowchart of the signal fingerprint contribution from the wireless terminal in the first embodiment according to the present invention. The AP is installed at a fixed location and transmits a radio signal with information about the AP. In order to contribute the signal fingerprint at the specific time point to the place server, the wireless terminal measures the reception strength of the radio signal from the AP in the reception strength measurement unit 222 (S101). When the received strength is transmitted to the signal fingerprint generation unit 224 (S105), the signal fingerprint generation unit 224 generates a signal fingerprint by collecting the received strength from each AP received and information on the corresponding AP ( S110).

Subsequently, the signal fingerprint is requested to be registered while transmitting the generated signal fingerprint (S115). Although the communication unit 226 of the wireless terminal and the transmission / reception processing unit 301 of the place server are not shown in S115, this is for simplicity of the drawings and it can be transmitted using various communication networks. As such, when the signal fingerprint registration unit 302 receiving the signal fingerprint receives the processing request (S120), the process of receiving the place label is performed to register the received signal fingerprint in the registration place table.

Before performing the process of receiving the place label, a request for inputting a place label while searching for a signal fingerprint similar to the received signal fingerprint in the registration place storage unit 305 (S125) and transferring it to the place input unit 228 of the wireless terminal. In this case, in this case, the place input unit 228 may select a place label indicating a place where the wireless terminal is located from the received place label and input the place label (S135). By presenting a place label corresponding to a similar signal fingerprint among the registered signal fingerprints, there is an effect of not inputting different place labels for the same place.

If there is no place label received from the place input unit or there is no place label indicating a place where the wireless terminal is located among the received place labels, the user may input the place label directly to the place input unit 228 (S135). In this case, the newly input place label is assigned to a place identifier distinguished from other places and registered in the registration place storage unit 305. When the selected or directly inputted place label is transmitted to the signal fingerprint registration unit 302, the signal fingerprint registration unit 302 associates the received signal fingerprint with the received place label and the place identifier assigned to the place label and stores the storage location. Processing to be registered by storing in 305 (S140).

Fig. 7 shows a flowchart of the place confirmation from the wireless terminal in the first embodiment according to the present invention. As shown in FIG. 6, the reception strength of the wireless signal from the AP is measured (S201), and the measured reception strength is transmitted to the signal fingerprint generator 224 (S205) to generate a signal fingerprint (S210). While transmitting the signal fingerprint generated in this way, it is requested to confirm the location including the location of the wireless terminal when the signal fingerprint is generated (S215). As shown in FIG. 6, the communication unit 226 of the wireless terminal and the transmission / reception processing unit 301 of the place server are not shown. However, this is for simplicity of display and may be transmitted using various communication networks.

As such, when the signal fingerprint comparator 303 receiving the signal fingerprint receives a processing request (S220), a process of determining a location including the location of the wireless terminal is performed using the received signal fingerprint. All signal fingerprints registered in the registration storage unit 305 may be compared, but before performing the comparison process, a part or all of the APs that have transmitted the radio signals corresponding to the reception strength included in the signal fingerprints may be compared. Similar signal fingerprints may be searched in the registered location storage unit 305 (S225) by searching for a signal fingerprint including the same, and the comparison may be made only for the detected signal fingerprints to reduce the burden for comparison. have.

Subsequently, a comparison between the signal fingerprints of the similar registered location searched through S225 or all the signal fingerprints registered in the registration place storage unit 305 and the received signal fingerprints is performed (S230). This comparison does not compare the physical distance according to the strength of the signal, but compares the similarity of the signal fingerprints generated by the radio signals received from each AP, and compares the signal fingerprints from each AP included in this signal fingerprint. The received strength is regarded as a vector and used to determine the most similar signal strength by calculating the Euclidean distance between the received fingerprint and each of the fingerprints included in the set of fingerprints. . Herein, a method of determining a place label associated with one signal fingerprint having the highest similarity as indicating a place where a wireless terminal is located, but several signal fingerprints having high similarity may be used.

Receive strengths from m APs s ₁ , s ₂ ,... , s _m , two signal fingerprints can be represented by vectors v _a and v _b as shown in Equation 1 below.

Equation 1

The Euclidean distance of these two vectors is calculated as in Equation 2 below.

Equation 2

In this way, the location identifier associated with the signal strength having the smallest difference is found from the registration location storage unit 305 by the difference calculation of S230, thereby determining a location including the location of the wireless terminal (S240). The place label corresponding to the place identifier thus determined is delivered to the wireless terminal to notify the place determined according to the signal fingerprint by the place confirmation request by the wireless terminal (S245), and the place label is displayed on the wireless terminal so that it can be confirmed. By the step S250, the place confirmation method in the first embodiment according to the present invention is completed.

In addition, after the determination of the place by the above-mentioned S240, it is also possible to transfer the determined place to the place server or another server so that another program is executed (S246). The determined place may be displayed as a place where the wireless terminal is located so that the place where the wireless terminal is located may be monitored in the center, and a place-based or location-based program provided to be executed by receiving a place label or a place identifier of the place may be executed. have.

As such, the system that receives the place label or place identifier of the place where the wireless terminal is located is not limited to displaying the value only in text, and displays the corresponding place on the map using the drawing of the building or the interior. Of course it is possible.

Fig. 8 shows a flowchart for the location confirmation in the wireless terminal in the first embodiment according to the present invention. The location confirmation from the wireless terminal described with reference to FIG. 7 is a method that can be used when the wireless terminal and the location server are connected through a communication network, and the location confirmation in the wireless terminal to be described with reference to FIG. By using the information on the signal fingerprint downloaded and stored in the wireless terminal to determine the location of the location of the wireless terminal in the wireless terminal.

Downloading and using all the signal fingerprints registered in the registration place storage unit 305 of the place server requires a lot of storage space on the wireless terminal and takes a long time for transmission, thereby degrading user convenience. . When the wireless terminal is not connected to the place server, the signal fingerprint registered in the registration place storage unit 305 may be compared with the signal fingerprint registered in the registration place storage unit 305 using the signal fingerprint generated by the wireless terminal. It extracts only the characteristics for the wireless terminal to download and save.

According as the probabilistically determined based on the characteristics of the registered places that includes the wireless terminal location signal fingerprint, p _i is a register location, v _i represents the signal fingerprint vector from _{_{p i, P (p i |}} v _i ) represents the conditional probability to be in place p _i if we have a signal fingerprint vector of v _i , and argmax computes P (p _i | v _i ) corresponding to each place identifier and places it at the largest value. In the following equation, a formula for probabilistic determination according to Bayes' theory is shown in Equation 3 below.

As shown in Equation 3 below, in order to find the most probable place determined by the signal fingerprint generated according to the position of the wireless terminal, the value of P (p _i ) and P (S _m ⁱ | p _i ) All you need is P (p _i ) is obtained by dividing the number of registered places contributed to the registered place storage unit 305 by the number of all registered places registered in the registered place storage unit 305 in association with the place identifier indicating the place of p _i . P (S _m ⁱ | p _i ) may be obtained through a normal probability density function of a normal distribution. In addition, this probability density function may be calculated using a mean value and a standard deviation of the received strength for each AP included in the signal fingerprint.

Equation 3

Therefore, the signal fingerprint registered for each place identifier using the signal fingerprint registered in the registration place storage unit 305 occupies the entire registered signal fingerprint (P (p _i )) and the average and standard of the received strength of each AP. The deviation is calculated (S301), and the calculated P (p _i ) and the average and standard deviation are downloaded to the wireless terminal and stored in the terminal storage unit 229 (S305), whereby the wireless terminal is connected to the place server and the communication network. Even when not connected, the position of the wireless terminal can be determined in a probabilistic manner using the signal fingerprint generated in the wireless terminal. This method makes it possible to determine the location including the location of the wireless terminal without storing all the signal fingerprint data contributed to the location server, thereby significantly reducing the storage space required for the wireless terminal.

In the method of confirming a location in a wireless terminal using the probabilistic determination method, as illustrated in FIG. 6, the reception strength of the radio signal from the AP is measured (S310) and the measured reception strength is measured by the signal fingerprint generator 224. In step S315, the signal fingerprint is generated (S320). When the basic data necessary for the probabilistic calculation is requested to identify a place including the location of the wireless terminal using the generated signal fingerprint (S325), it is necessary to calculate the probability to be included in each registration place according to the signal fingerprint. The data is received from the terminal storage unit 229 (S330).

The average and standard deviation of the received signal fingerprint (P (p _i )) for each registered location fingerprint received from the data cached in the terminal storage unit 229 with respect to the total registered signal fingerprint, and the received strength of each AP In step S335, the wireless terminal calculates a probability of being included in the corresponding place. According to the calculation result, the place indicated by the place identifier indicating the most probable value is determined as a place including the location of the wireless terminal (S340).

As described with reference to FIGS. 3 to 8, the determination of a place including the location of the wireless terminal by statistical or probabilistic calculation is performed by increasing the number of registered places registered in the registered place storage unit 305 of the place server. As the accuracy is increased, the result determined as the location including the location of the wireless terminal does not necessarily correspond to the location including the location of the actual wireless terminal. Therefore, it will be said that there is a need for a method that can determine how reliable the place including the location of the wireless terminal determined by the above-described registration location confirmation method.

9 shows a method for measuring reliability for the determined place in the first embodiment according to the present invention. When a signal fingerprint registered in association with a place identifier corresponding to a specific place among the signal fingerprints registered in the registered place storage unit 305 of the place server is located inside the boundary of the place of FIG. The closer it is, the higher the probability that the place determined according to the signal fingerprint is a place including the actual location of the wireless terminal. And if we are near the boundary of the place, the probability is 0.5.

First, a signal fingerprint is represented by a vector v using the reception intensity from each AP measured by the wireless terminal at an arbitrary position with respect to the radio signal from the AP. Subsequently, the average of the fingerprints registered in association with the place identifier corresponding to the specific place among the signal fingerprints contributed to the place server is calculated and used as the center value c _p . The position of the wireless terminal when the Euclidean distance between the above center value (c _p ) and the signal fingerprint farthest from the Euclidean distance among the signal fingerprints registered in association with the place identifier corresponding to the specific place is the maximum distance (μ _p ). If the result determined as the place containing the p is the confidence (Confidence) for the determined place can be calculated by the following equation (4).

Equation 4

As in Equation 4, the reliability is CDF in the normal distribution with respect to the distance from the center value of the registered fingerprint to the signal fingerprint measured at the wireless terminal in association with the place identifier corresponding to the specific place among the registered fingerprints. Cumulative Distribution Function) function is calculated and this value is subtracted from 1. The calculated reliability is provided to the wireless terminal or another server together with the place label of the determined place so that the determined place can know the probability of matching the actual place.

10 to 11 illustrate the present invention for recognizing a location including a location of a wireless terminal by receiving and collecting information about the AP and a reception intensity simultaneously measured by the AP for a wireless signal from a wireless terminal at an arbitrary location. The second embodiment according to the invention will be described in detail. 10 is a configuration diagram for place recognition in the second embodiment according to the present invention. The wireless terminal 720 may transmit a radio signal to the

APs

120, 130, and 170 fixed at a specific position at an arbitrary position, and each AP may measure its reception strength.

Network 1 910 and network 2 920 of FIG. 10 may be used only if both are connected to deliver a reception strength from wireless terminal 720 to a place server. The received strength measured by each AP is transmitted from the AP connected to the communication network 1 910 or the network 2 920 to the place server 800, and the place server 800 associates the received intensity with the information about the AP. To generate a signal fingerprint according to the location of the wireless terminal.

11 is a detailed view showing the details of the configuration of the second embodiment according to the present invention. The wireless terminal 720 includes a wireless signal transmitter 721, a communication unit 726, and a place input unit 728. The AP includes an AP information storage unit 623, a reception strength measurement unit 624, and a reception intensity transmission unit 627. Also, the place server 800 includes a transmission / reception processing unit 801, a signal fingerprint registration unit 802, a signal fingerprint comparison unit 803, a registration place storage unit 805, and a signal fingerprint generation unit 807.

First, the wireless signal transmitter 721 of the wireless terminal 720 transmits a wireless signal for wireless LAN communication, and the AP 620 fixedly installed around the wireless terminal receives the received strength from the wireless terminal 720. It can be measured and delivered to the place server 800. The reception strength measurement unit 624 of the AP 620 measures the reception strength of the radio signal from the wireless terminal 720, and the received reception strength is measured with information about the AP stored in the AP information storage unit 623. Together with the reception strength transmission unit 627 transmits to the transmission and reception processing unit 801 of the place server 800.

Subsequently, the signal fingerprint generator 807 generates a signal fingerprint by collecting the received strengths from each AP transmitted by the transmission / reception processing unit 801 of the location server 800. As described above, although the method of generating the signal fingerprint is different from that in the first embodiment according to the present invention, except for the method of generating the signal fingerprint, the first embodiment according to the present invention described with reference to FIGS. Same as in the example.

Naturally, the tables in the registration place storage unit described with reference to FIG. 5 may be used in the same manner. Naturally, the location confirmation method is also possible. In addition, by allowing the AP to measure the reception strength of the radio signal, it is advantageous to reduce the burden on the wireless terminal and to easily manage the AP to be used for location recognition.

As described above, the place recognition method using the wireless LAN reception strength allows the location label of the place including the location of the wireless terminal to be identified using the reception strength of the wireless signal in the wireless LAN, thereby providing information on the map indoors. Increase the accuracy of location confirmation by enabling the location of the wireless terminal to be identified without the need for a location, and by contributing to the place server the signal fingerprint generated according to the location of the wireless terminal used to identify the location in connection with the location label. It is effective.

12 shows a layout view of an access point (AP) and a wireless terminal in a third embodiment according to the present invention. On one floor of the building, spaces such as rest rooms, waiting rooms, offices, medical offices, conference rooms, lecture rooms, and corridors are arranged, and

APs

1110, 1120, 1130, 1140, 1150, 1160, and 1170 are provided.

Wireless terminals

1210, 1220, 1230, and 1240 having a network interface for accessing a wireless LAN in a building transmit and receive wireless signals with the AP at arbitrary locations.

As such, the reception strength of the wireless signal transmitted from the AP is measured differently according to the location of the wireless terminal, and a signal fingerprint is generated by collecting the reception strength and information on the corresponding AP from at least one or more APs. The signal fingerprint thus generated has different values according to the location of the wireless terminal. The more similar the reception strength from each AP included in the signal fingerprint is, the closer the position of the wireless terminal is when the corresponding signal fingerprint is generated. Can be.

Therefore, the location determination of the wireless terminal using the wireless LAN reception strength and the operation method thereof according to the third embodiment according to the present invention, a signal fingerprint generated using the strength of the received wireless signal (Signal Fingerprint) And a place label indicating a place including a location of the wireless terminal in advance and store the signal fingerprint set in the wireless terminal in advance, and later generate a signal fingerprint using the stored signal fingerprint set. The present invention relates to determining a place label of a place including a location, and relates to an operation method for allowing an operation or an application set in association with the determined place label to be executed in a wireless terminal.

In order to store the signal fingerprint set, not only the measurement of the signal fingerprint and the input of the location label may be directly performed by the user who wants to confirm the location including the location of the wireless terminal, but also generated according to the location of the wireless terminal. It should be noted that the place label of the place including the signal fingerprint and the corresponding location may be received and stored from a separate database or server. Therefore, it may be performed in advance at any location in the building by an administrator who wishes to determine the location of the wireless terminal in a specific building or area, and accordingly the operation or application execution in the wireless terminal, which will be described in detail later. do.

In addition, as the number of stored signal fingerprint sets increases, the probability of the location label determined by the newly measured signal fingerprint increases with the location including the location of the actual wireless terminal. In addition, it is possible to check a place including the location of the wireless terminal without calculating the location of the AP, the distance to the AP, and can be identified by a place label indicating a specific place instead of coordinates, so the map of the building is not necessary. It can reduce the burden on the system for location recognition.

In addition, although only the AP for WLAN access is used for location recognition in FIG. 12, if the location is fixed and transmits / receives a wireless signal to measure its strength, even if it is not used for network connection, the location recognition of the wireless terminal is used. It may be included in the AP used for.

13 is a configuration diagram for performing a location determination of a wireless terminal and a method of operation according to the third embodiment according to the present invention. The wireless terminal 1220 may receive a radio signal transmitted from the

APs

1120, 1130, and 1170 fixed at a specific location at an arbitrary location and measure the reception strength thereof.

Even APs connected to different communication networks, such as communication network 1 (1410) and communication network 2 (1420) of FIG. 13, can be used if the wireless terminal can receive the wireless signal transmitted therefrom and measure its reception strength. Although not used for the network connection of the wireless terminal in the third embodiment according to the present invention can be used for the determination of the location. In addition, although the wireless terminal is configured to be connected to the place server through the communication network 1 (1410), it is natural that other communication networks not shown in FIG. 13 may be used as long as data transmission between the wireless terminal and the place server is possible.

Fig. 14 shows a flowchart of the location determination of the wireless terminal and the operation method according to the third embodiment according to the present invention. Detailed descriptions of each process will be provided later, and a schematic sequence thereof will be described.

The location determination of the wireless terminal in the third embodiment according to the present invention and the preparation step for the method of operation according to the present invention include S1010 to S1030. First, in order to distinguish a place to be determined according to the location of the wireless terminal, a place label for logically identifying an actual physical place is defined (S1010). Then, by measuring a signal fingerprint according to the position of the radio terminal and receiving the place label of the place including the position of the radio terminal when the signal fingerprint is measured, it indicates the signal fingerprint and the specific place measured at any position Place labels are linked to each other to be stored as a set of signal fingerprints (S1020). It is preferable that the above-described S1020 is repeated several times in order to improve the accuracy of the location decision to be performed later by using the set of signal fingerprints. The process of inputting the location label of S1020 will be described in detail later with reference to FIG. 17.

Subsequently, an operation or application of the wireless terminal to be executed is set in association with the location label of the stored set of fingerprints (S1030). It should be noted that the setting in S1030 is unique to the place label defined in S1010, and that a complex operation or application may be included in one setting. In addition, it should be understood that S1020 described above may be additionally performed even after S1030 is performed.

On the other hand, the service step using the location determination of the wireless terminal and the operation method according to the third embodiment according to the present invention is configured to include S1050 to S1070. First, the reception strength of the radio signal from the AP is periodically measured at the wireless terminal (S1050) to generate a signal fingerprint. Subsequently, the location including the location of the wireless terminal is determined using the measured signal fingerprint (S1060). The method of determining the location of S1060 will be described in detail later with reference to FIG. 18. When the location is determined in this way, the operation or application of the wireless terminal set by S1030 is executed in the wireless terminal according to the location (S1070).

Fig. 15 is a detailed view showing details of the configuration of the third embodiment according to the present invention. The wireless terminal 1220 includes a reception strength measurement unit 1222, a signal fingerprint generation unit 1224, a signal fingerprint comparison unit 1225, a communication unit 1226, an operation execution unit 1227, a terminal input unit 1228, and a terminal storage unit. It is comprised including the part 1229. The AP includes an AP information storage unit 1123 and a wireless signal transmitter 1125. The place server also includes a transmission / reception processing unit 1301 and a registration place storage unit 1305.

First, the wireless signal transmitter 1125 of the AP transmits a wireless signal for WLAN communication, and it should be understood that the wireless signal transmitter 1125 is not limited to the wireless signal for WLAN communication as described above. In transmitting the radio signal, the radio signal may be transmitted together with information on the AP stored in the AP information storage unit 1123. The radio signal may be transmitted to the AP stored in the AP information storage unit 1123 by a request from the wireless terminal. You can also respond to information about this.

As such, when a radio signal is transmitted from an AP fixedly installed around the radio terminal, the reception strength measurement unit 1222 of the radio terminal receives the radio signal and measures the reception strength of each signal, and generates a signal fingerprint. The signal is transmitted to the unit 1224 to generate a signal fingerprint including a collection of reception intensities for each received radio signal. The signal fingerprint may also include information on the AP that transmitted each of the radio signals.

The terminal input unit 1228 receives a location label indicating a location including a location of the wireless terminal that generated the signal fingerprint in the preparation step described with reference to FIG. 14, and receives an operation or application of the wireless terminal corresponding to the location label. To be set. In addition, a unique place identifier may be assigned within the wireless terminal to be stored in association with the place identifier and the place label. In this case, if the place identifier is assigned, the same place label may have the same place label even if different places are used, and when the place label is directly used as the place identifier, the same place label cannot be used repeatedly. good.

The terminal storage unit 1229 includes a signal fingerprint generated by the signal fingerprint generator 1224, a place label received by the terminal input unit 1228, and the like, and determine the location of the wireless terminal in the third embodiment according to the present invention. This is where data for performing the operation method is stored. Even if duplicated place labels are stored in the terminal storage unit 1229, if it is additionally confirmed that the place is different through the wireless terminal, some of the duplicated place labels may be changed, and if different place identifiers are given. In addition to providing a place label that is easy for a user to recognize, the same place label may indicate different places, thereby generating an effect of increasing convenience and accuracy of place recognition. Various tables stored in the terminal storage unit 1229 will be described in detail later with reference to FIG. 16.

The signal fingerprint comparing unit 1225 compares the signal fingerprint periodically measured in the wireless terminal in the service stage described with reference to FIG. 14 with the signal fingerprint stored in the terminal storage unit 1229, and the terminal storage unit 1229. The location label associated with the signal fingerprint most similar to the newly measured signal fingerprint is determined within the same, and the determined location label is transmitted to the operation execution unit 1227. The comparison between the two signal fingerprints by the signal fingerprint comparison unit 1225 and the determination of the location of the wireless terminal will be described in detail later with reference to FIG. 18.

The operation execution unit 1227 confirms the operation or application in the wireless terminal set in association with the place label received from the signal fingerprint comparing unit 1225 in the terminal storage unit 1229, and confirms the operation or application in the wireless terminal. Run on

When all data including a signal fingerprint and a place label stored in the terminal storage unit 1229 of the wireless terminal are transmitted to the place server 1300 through the network and stored or used by the preparation step described with reference to FIG. 14. The communication unit 1226 may be transmitted to the transmission / reception processing unit 1301 of the place server to be stored in the registration place storage unit 1305 of the place server 1300. The registration location storage unit 1305 stores all data including a signal fingerprint generated by the wireless terminal and transmitted to the location server together with the location label of the wireless terminal, and is a signal associated with the same location label received from a plurality of wireless terminals. You can also store your fingerprints.

16 shows a table constructed in the terminal storage 1229 in the third embodiment according to the present invention. First, the AP table is a wireless terminal receives and stores information about the AP received while measuring the received strength of the radio signal, and includes the AP identifier, manufacturer, MAC address and the like. The AP identifier may be used as it is, and may be used so as not to be duplicated in the terminal storage unit 1229. In addition, when the AP changes the fixed location, the location server to notify the wireless terminal whether the change, to remove the reception strength from the AP within the signal fingerprint stored in the terminal storage unit 1229, and The newly measured reception strength from the AP can be used to determine the location of the wireless terminal.

The signal fingerprint table is stored in association with the information on the AP and the reception strength measured by the wireless terminal at an arbitrary position for the radio signal from the AP. As shown in FIG. 16, the AP table is separately provided, and only the AP identifier is stored in the signal fingerprint table in association with each other, thereby increasing the utility and flexibility of data storage.

The place label table stores a place label received from the wireless terminal, and may be stored in association with a place identifier given a unique value in the terminal storage unit 1229. The registration place table registers the signal fingerprint measured by the wireless terminal by storing the signal fingerprint measured in the wireless terminal and the received place label and confirms the place label associated with the registered signal fingerprint. If a place identifier is assigned to a place label, the placemark may be associated with the signal fingerprint.

17 is a flowchart of a preparation step for determining a location of a wireless terminal and a method of operation according to the third embodiment according to the present invention. The AP is installed at a fixed location and transmits a radio signal with information about the AP. In order to generate a signal fingerprint at a specific location, the wireless terminal measures the reception strength of the radio signal from the AP in the reception strength measurement unit 1222 (S1101). When the received strength is transmitted to the signal fingerprint generator 1224 (S1105), the signal fingerprint generator 1224 generates a signal fingerprint by collecting the received strengths of the received APs and information on the corresponding AP ( S1110).

Subsequently, the generated signal fingerprint is transmitted to the terminal storage unit 1229 (S1115), and the terminal storage unit 1229 registers and stores the received signal fingerprint in the registration place table (S1120). Subsequently, the terminal storage unit 1229 requests to input a place label of a place including the location of the wireless terminal from which the signal fingerprint stored in the terminal input unit 1228 of the wireless terminal is measured (S1130). In this process, a place label associated with a signal fingerprint similar to a newly stored signal fingerprint among the signal fingerprints already stored in the terminal storage unit 1229 may be transmitted to the terminal input unit 1228 for the user to select. By presenting a place label associated with a similar signal fingerprint among the stored signal fingerprints, there is an effect of not inputting different place labels for the same place.

If there is no place label received by the terminal input unit 1228 or there is no place label indicating a place where the wireless terminal is located among the received place labels, the user may input the place label directly to the terminal input unit 1228 (S1135). In this case, the newly input place label may be assigned to a place identifier distinguished from other place labels and stored in the terminal storage unit 1229. The selected or directly input place label is transferred to the terminal storage unit 1229 (S1137), and registered in association with the newly stored signal fingerprint (S1139).

S1101 to S1139 are repeatedly performed at various locations within a specific place indicated by one place label, so that a plurality of signal fingerprints for one place label are stored, and the plurality of signal fingerprints and place labels are connected to store the terminal. The vowels stored in the unit 1129 form a set of signal fingerprints. As the number of signal fingerprints included in the signal fingerprint set is increased, the accuracy of the location determination of the wireless terminal to be performed in a later service step is improved.

Subsequently, when it is determined that the wireless terminal is located in a place indicated by the place label associated with the registered signal fingerprint, an operation or application to be executed in the wireless terminal is set (S1150), and the terminal storage unit 1129 is connected with the place label. The data is stored in S1152. The operation or application in the wireless terminal may not only be used for switching or changing functions provided in the wireless terminal itself, including changing the mode of the wireless terminal, changing the automatic response, executing a reservation operation, etc. It includes all operations or applications that can be executed in the wireless terminal, including reservation execution. In addition, it is preferable to display a screen configured to select the above-described operation or application to the user for setting the operation or the application.

All data stored in the terminal storage unit 1129 of the wireless terminal including the signal fingerprint set, setting information, and the like are transmitted to the registration place storage unit 1305 of the place server through the network (S1190) to be stored or used. Can be. Although the communication unit 1226 of the wireless terminal and the transmission / reception processing unit 1301 of the place server are not shown in S1190, it should be noted that this is for simplifying the drawing and may be transmitted using various communication networks other than the above. In addition, the registration place storage unit 1305 can integrate data from various wireless terminals on the basis of the place label so that the registration place storage unit 1305 can be used for place determination using a signal fingerprint in a wider place. In case of consolidation and joint use of data through this place server, it is easy to secure a large amount of initial data including a signal fingerprint to provide more accurate place determination.

18 is a flowchart of a service step using a location determination of a wireless terminal and an operation method according to the third embodiment according to the present invention. As shown in FIG. 17, the reception strength of the radio signal from the AP is measured (S1201), and the measured reception strength is transmitted to the signal fingerprint generation unit 1224 (S1205) to generate a new signal fingerprint at an arbitrary position ( S1210). The newly generated signal fingerprint is transmitted to the signal fingerprint comparing unit 1225, and a request is made to determine a location including the location of the wireless terminal when the signal fingerprint is generated (S1215).

As such, the signal fingerprint comparator 1225 performs a process of determining a location including the location of the wireless terminal by using the newly generated signal fingerprint. All signal fingerprints registered in the terminal storage unit 1229 may be compared, but before performing the comparison process, a part or all of the APs transmitting the radio signals corresponding to the received strengths included in the signal fingerprints are the same. It is preferable to perform a search (S1225) for a similar signal fingerprint in the terminal storage unit 1229 by a method such as searching for a signal fingerprint that is included, and to reduce the burden for comparison by comparing only the detected signal fingerprint. Produces an effect.

Subsequently, a comparison between the newly generated and received signal fingerprints of the signal fingerprints of the similar registration location or the terminal fingerprinting unit 1229 retrieved through S1225 is performed (S1230). This comparison does not compare the physical distance according to the strength of the signal, but compares the similarity of the signal fingerprints generated by the radio signals received from each AP, and compares the signal fingerprints from each AP included in this signal fingerprint. The received signal is regarded as a vector, and the most similar signal strength is calculated by calculating the Euclidean distance between the newly generated and received signal fingerprints and each of the signal fingerprints included in the signal fingerprint set. Use it to determine. Herein, a method of determining a place label associated with one signal fingerprint having the highest similarity as indicating a place where a wireless terminal is located, but several signal fingerprints having high similarity may be used.

Receive strengths from m APs s ₁ , s ₂ ,... , s _m , two signal fingerprints can be represented by vectors v _a and v _b as shown in Equation 5 below.

Equation 5

The Euclidean distance of these two vectors is calculated as shown in Equation 6 below.

Equation 6

In this way, the location label associated with the signal fingerprint having the smallest difference is found from the terminal storage unit 1229 by the difference calculation of S1230, thereby determining a location including the location of the wireless terminal (S1240). The location label determined as described above is transmitted to the operation execution unit 1227 to notify the determined place according to the signal fingerprint by the periodic location confirmation request from the wireless terminal (S1245), and the operation execution unit 1227 is associated with the place label. In step S1250, the mobile terminal searches for and executes the set operation or application from the terminal storage unit 1229, and the service step using the location determination of the wireless terminal according to the third embodiment and the operation method thereof is completed.

In addition, after the determination of the place by S1240, the newly generated signal fingerprint and the place label of the determined place may be stored in the terminal storage unit 1229 to be used for later place determination. In addition, all data stored in the terminal storage unit 1229 of the wireless terminal is transmitted to the place server 1300 to be stored, or further downloads data including the additional fingerprint fingerprint, operation settings, etc. from the place server 1300 It can also be used in.

As described with reference to FIGS. 13 to 18, the determination of the location including the location of the wireless terminal by statistical or probabilistic calculation is performed as the number of signal fingerprints registered in the terminal storage unit 1229 of the wireless terminal increases. As the accuracy is increased, it should be noted that the result determined as the location including the location of the wireless terminal does not necessarily match the location including the location of the actual wireless terminal. Therefore, the reliability of the determined place can be calculated using a method that can determine how reliable the place including the location of the wireless terminal determined by the above-described registration place checking method can be found. Omit from.

As described above, in order to provide a service for executing the operation of the wireless terminal set according to the location including the location of the wireless terminal in the wireless terminal without user's operation, it is necessary to secure a large number of signal fingerprints and associated location labels. In addition, the user should also set an operation to be performed when the wireless terminal is located at the location indicated by the location label. However, it may not be easy for a user who does not fully understand such contents to set directly.

Accordingly, the fourth embodiment of the present invention is to propose a method for automatically executing a setting for executing a location determination and an operation according to a location of a wireless terminal using WLAN reception strength.

For example, a database specifying the mode of a wireless terminal including a mobile phone suitable for all hospitals, medical offices, operating rooms, emergency rooms, break rooms, and conference rooms of a general hospital may be established. When the portable device is to automatically change the mode at each place, the operation of the wireless terminal according to the previously specified place can be downloaded from the database to the portable device of the user and set. If you do this, you can alleviate the inconvenience that the individual, such as doctors and nurses, must set their mobile phone operation mode according to the place.

In addition, when the mode set for the mobile phone by the above-mentioned setting is an auto answer, the voice call guide can be provided to the other party who calls the mobile phone to which the auto answer is set. You can also make your phone public. As such, when the wireless terminal is a mobile phone, an operation set according to a place may include setting a ring tone or a vibration mode, converting a ring tone size, changing an auto answer mode, and opening information about a place called by the mobile phone. There may be a place label disclosure for the mobile phone in the case.

19 is a configuration diagram for performing an automatic operation setting method of a wireless terminal in a fourth embodiment according to the present invention. The wireless terminal 1720 may receive a radio signal transmitted from the

APs

1620, 1630, and 1670 fixed to a specific location at an arbitrary location and measure the reception strength thereof.

Even if the AP is connected to a different communication network, such as communication network 1 (1910) and communication network 2 (1920) of FIG. 19, it can be used if the wireless terminal can receive the wireless signal transmitted therefrom and measure its reception strength. Although not used for the network connection of the present invention can be used for the determination of the location of the wireless terminal in the fourth embodiment according to the present invention. In addition, although the wireless terminal is configured to connect to the setting server through communication network 1 (1910), it is natural that other communication networks not shown in FIG. 19 may be used as long as data transmission between the wireless terminal and the setting server is possible.

20 is a flowchart of a method for automatically setting operations of a wireless terminal in the fourth embodiment according to the present invention. A detailed description of each process is similar to the method of determining the location of a wireless terminal using the wireless LAN reception strength and the operation method thereof, and will be described based on the difference in the method of automatically setting the operation of the wireless terminal.

As shown in Figure 20, the preparation step for the automatic operation setting method of the wireless terminal in the fourth embodiment according to the present invention is configured to include S1310 to S1330. First, S1310 is the same as S1010 described above, and in S1320, the signal fingerprint generated from the wireless terminal is transferred to the setting server at an arbitrary position within the range to be managed by the administrator who wants to provide automatic setting of the operation of the wireless terminal. It is different from S1020 that it is collected and stored. Also in S1330, the administrator sets the location label of the signal fingerprint set stored in the setting server in association with the operation or application of the wireless terminal to be executed according to the location where the wireless terminal is located.

On the other hand, the service step using the automatic operation setting method of the wireless terminal in the fourth embodiment according to the present invention in FIG. 20 includes S1340 to S1370. First, in order to provide automatic setting of the operation of the wireless terminal, information such as signal fingerprint, place label, operation setting, etc. stored in the setting server is downloaded to the wireless terminal by the preparation step (S1340). In operation S1340, a user having a wireless terminal including a mobile phone or the like may check whether to automatically download the operation setting to the wireless terminal in the case of entering the area to which the automatic setting is to be provided. It can also be executed manually. When data related to location determination, operation setting, and the like are downloaded, subsequent processes S1350 to S1370 are the same as S1050 to S1070.

Fig. 21 is a detailed diagram showing details of the arrangement in the fourth embodiment according to the present invention. The wireless terminal 1720 includes a reception strength measurement unit 1722, a signal fingerprint generation unit 1724, a signal fingerprint comparison unit 1725, a communication unit 1726, an operation execution unit 1727, a terminal input unit 1728, and a terminal storage unit. It is configured to include a unit (1729). The AP includes an AP information storage unit 1623 and a wireless signal transmitter 1625. In addition, the setting server 1800 includes a transmission / reception processing unit 1801 and a setting storage unit 1805.

The configuration of the wireless terminal is the same as the configuration described with reference to FIG. 15, except that the setting storage unit of the setting server stores data to be used for the location determination of the wireless terminal such as a signal fingerprint, a location label, an operation setting, and an operation method thereof. There is a difference in the part downloaded from 1805 and stored in the terminal storage unit 1229 of the wireless terminal. This eliminates the need for the user to perform signal fingerprint measurement, location label input, etc. in each wireless terminal, and has an advantage of facilitating an operation method according to the location of the wireless terminal.

The table in the terminal storage unit 1229 described with reference to FIG. 16 may also be used in the terminal storage unit 1729 or the setting storage unit 1805 in the fourth embodiment according to the present invention. It should be noted that the number of signal fingerprints can be added or subtracted within a range that does not affect the load of the wireless terminal. In addition, the amount of data to be transmitted can be reduced by using the average and standard deviation of the signal fingerprint for the place label in the setting storage unit 1805 without directly downloading the signal fingerprint, and the description thereof is omitted here.

As described above, when the mobile phone in which the operation according to the place is set to be automatically downloaded by the automatic setting in the fourth embodiment according to the present invention is set to be automatically responded at a location such as a conference room or a lecture room, etc. , The user may select whether or not the location label determined to be the location including the location of the mobile phone is disclosed to the other party so that the mobile phone may be informed in advance to the other party who called the mobile phone information about the place periodically determined by the mobile phone. You can also In addition, it is possible to designate a counterpart who can confirm the information on the place so that no one knows where the wireless terminal including the mobile phone is located.

As such, since the place information determined according to the location of the wireless terminal is also important information related to the privacy of the individual, it is effective to increase the security of the wireless terminal. In addition, all the data including the operation setting and the like in the fourth embodiment according to the present invention are stored in the setting storage unit 1805 of the setting server 1800, so that the above-mentioned data can be changed even if the wireless terminal is changed or lost. It has the advantage of easy to recover.

As described above, the location determination of the wireless terminal using the wireless LAN reception strength, the operation method and the automatic setting method of the operation according to the location including the location of the wireless terminal using the reception strength of the wireless signal in the WLAN By checking the location label of the mobile terminal and executing the operation of the wireless terminal set accordingly, it is possible to determine a location where the wireless terminal is located in the room without information on the map, and accordingly, the operation of the wireless terminal can be automatically executed. In addition, by having a newly generated signal fingerprint used for the determination of the place, it is advantageous in that a large set of signal fingerprints can be easily prepared to improve the accuracy of the determination of the place.

In the above-described embodiments of the present invention, the wireless signal in the wireless LAN has been described, but it is not limited to the wireless signal in the wireless LAN. Of course, it can be used in a wireless terminal using a wireless signal such as WiBro or a wireless telephone. Do.

In addition, the configuration shown in the embodiments and drawings described herein are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Claims

Signal fingerprint generated by the wireless terminal-The signal fingerprint is generated by collecting the information on the AP and the reception strength measured at the location where the wireless terminal is located for the radio signal from at least one AP (Access Point)- Receive the,

Comparing the received signal fingerprint and the signal fingerprint set, wherein the signal fingerprint set is a set of signal fingerprints registered in advance in a server in association with a place identifier given to a place label indicating a specific place;

Determining a place identifier corresponding to a signal fingerprint similar to the signal fingerprint received from the wireless terminal among the signal fingerprint sets by the comparison;

And a place label of a place where the wireless terminal is located according to the determined place identifier.
Signal fingerprint according to the location where the wireless terminal is located-The signal fingerprint is a collection of received strength and information about the AP simultaneously measured by at least one AP (Access Point) for the wireless signal from the wireless terminal- Create,

Comparing the generated signal fingerprint with a signal fingerprint set, wherein the signal fingerprint set is a set of signal fingerprints registered in advance in association with a place identifier assigned to a place label indicating a specific place;

Determining a place identifier corresponding to a signal fingerprint similar to the generated signal fingerprint among the set of signal fingerprints by the comparison;

And a place label of a place where the wireless terminal is located according to the determined place identifier.
The method according to claim 1 or 2,

The place identifier is,

When the signal fingerprint included in the signal fingerprint set is generated is given to the place where the wireless terminal is located, the wireless LAN reception strength, characterized in that registered in the server in conjunction with the signal fingerprint included in the signal fingerprint set Place recognition method used.
The method according to claim 1 or 2,

For the above comparison,

And each signal fingerprint and Euclidean distance included in the signal fingerprint set are calculated.
The method according to claim 1 or 2,

From the signal fingerprints corresponding to the same place identifier among the set of signal fingerprints, a mean value of received strengths for the same AP is calculated to obtain a center value for the signal fingerprints corresponding to each place identifier.

By comparing the center value for the signal fingerprint corresponding to the determined place identifier with the signal fingerprint generated according to the location where the wireless terminal is located,

And calculating the probability that the place where the wireless terminal is actually located and the place indicated by the determined place identifier match.
Signal fingerprint set registered in the server-The signal fingerprint set is registered in the server in advance in association with a place identifier assigned to a place label indicating a specific place and is measured for the reception strength and the corresponding AP according to the location where the wireless terminal is located. It is a set of signal fingerprints that gather information-calculate the mean value and standard deviation of the received strength for the same AP from the signal fingerprints corresponding to the same place identifier.

A wireless terminal located at an arbitrary location generates a signal fingerprint and uses the generated signal fingerprint and the average and standard deviation to probabilistically calculate a location where the wireless terminal is located. Recognition method.
Receives a signal fingerprint-The signal fingerprint is a collection of reception strengths and information about the AP, measured according to the location of the wireless terminal, for at least one AP (Access Point) or wireless signal from the wireless terminal,

When the received signal fingerprint is generated receives a Place Label (Place Label) of the place where the wireless terminal is located,

And assigning a place identifier to the input place label with a unique value in the server and registering the received place label in the server together with the received signal fingerprint.
A signal fingerprint generated by the wireless terminal, wherein the signal fingerprint is generated by collecting the received strength and information on the AP, measured at the location where the wireless terminal is located, for the wireless signal from at least one AP (Access Point). Send,

When the reception intensity is measured by receiving a place label (Place Label) of the place where the wireless terminal is located,

And a method of contributing to a WLAN signal fingerprint using a location label, wherein the transmitted signal fingerprint and the location label are registered in a server.
Signal fingerprint according to the location where the wireless terminal is located-The signal fingerprint is the reception strength and information on the AP are collected so that at least one AP (Access Point) simultaneously measures and transmits the wireless signal from the wireless terminal- Is generated,

When the reception intensity is measured by receiving a place label (Place Label) of the place where the wireless terminal is located,

The method of claim 1, wherein the generated signal fingerprint and the transmitted place label are registered in a server.
The method according to claim 8 or 9,

In the transmitted place label is registered in the server,

A place identifier is assigned to the transmitted place label using a unique value in the server, and the place identifier is registered with the server in association with a signal fingerprint corresponding to the place label. Contribution method of WLAN signal fingerprint.
The method according to claim 10,

Receives and displays a place label of a place identifier corresponding to at least one signal fingerprint similar to the generated signal fingerprint among the set of signal fingerprints already registered in the server, and includes the location of the wireless terminal among the displayed place labels. A method of contributing to a WLAN signal fingerprint using a place label, characterized by selecting a place label indicating a place.
Transmits a signal fingerprint generated by the wireless terminal, wherein the signal fingerprint is a collection of reception strengths and information on the AP, measured at a location where the wireless terminal is located, for a wireless signal from at least one AP (access point); ,

And a place label of a place including the location of the wireless terminal according to the transmitted signal fingerprint.
Signal fingerprint according to the location where the wireless terminal is located-The signal fingerprint is a collection of reception strength and information on the AP so that at least one AP (Access Point) simultaneously measures and transmits the wireless signal from the wireless terminal- Is generated,

And a place label of a place including the location of the wireless terminal according to the generated signal fingerprint.
Signal fingerprint-The signal fingerprint is the reception strength and the information about the AP gathered according to the location where the wireless terminal is located for at least one AP (Access Point) or wireless signal from the wireless terminal-is generated. ,

Signal fingerprint set registered in the server-The signal fingerprint set is registered in the server in advance in association with a place identifier assigned to a place label indicating a specific place and is measured for the reception strength and the corresponding AP according to the location where the wireless terminal is located. It is a set of signal fingerprints gathered information-using the average and standard deviation of the received strength of each access point (AP) corresponding to each place identifier calculated from

Calculating the probability that the location of the wireless terminal is included in the location indicated by each place identifier by using the average and standard deviation of the received strength for each AP corresponding to each place identifier and the generated signal fingerprint,

The place label of a place indicated by the place identifier corresponding to the variance and the standard deviation used when the calculated probability is the largest is determined as the place label of the place including the location of the wireless terminal. Place confirmation method using the wireless LAN reception strength.
Generate a signal fingerprint by collecting the received intensity measured at the location where the wireless terminal is located for the wireless signal from the AP (Access Point),

When the reception strength is measured, receives a Place Label of the place where the wireless terminal is located,

The generated signal fingerprints are stored in a set of signal fingerprints in the wireless terminal in association with the place label.

By setting an operation or an application to be executed according to a location in association with the location label, the wireless terminal prepares to execute the operation or application of the wireless terminal at a specific place corresponding to the location label. Operation method of a wireless terminal using.
Generate a new signal fingerprint by collecting the received strength measured at the location where the wireless terminal is located for the wireless signal from the AP (Access Point),

Comparing the newly generated signal fingerprint and signal fingerprint set according to the location of the wireless terminal, wherein the signal fingerprint set is a set of signal fingerprints previously stored in the wireless terminal in association with a place label indicating a specific place;

Determining a signal fingerprint similar to the newly generated signal fingerprint according to the position of the wireless terminal of the signal fingerprint set by the comparison,

Operating method of a wireless terminal using a wireless LAN reception strength, characterized in that for the operation or application of the wireless terminal is set in advance in the place of the place label associated with the determined signal fingerprint.
Signal fingerprint set-The signal fingerprint set is a set of signal fingerprints generated by gathering the received strengths of radio signals from an access point (AP) in a wireless terminal located at a specific place for each specific place and indicating a specific place. Associated with a Place Label-to prepare,

Setting an operation or an application to be executed at a specific place by the wireless terminal in association with the place label indicating the specific place,

In the wireless terminal located at an arbitrary place, the reception strengths measured for the radio signals from the AP are collected and the newly generated signal fingerprints are compared with the signal fingerprint set.

Determining, by the comparison, a place indicated by a place label associated with a signal fingerprint similar to the newly generated signal fingerprint among the signal fingerprint sets as a place of the wireless terminal,

Operating method of a wireless terminal using the wireless LAN reception strength, characterized in that to execute the operation or application of the wireless terminal is set in advance associated with the location label indicating the determined place.
The method according to any one of claims 15 to 17,

The place label,

When the signal fingerprint included in the signal fingerprint set is generated, it indicates the place where the wireless terminal is located, and when the place identifier is assigned to the place label, the radio is characterized in that a unique value is given in the wireless terminal. Operation method of a wireless terminal using the LAN reception strength.
The method according to any one of claims 15 to 17,

The operation or application,

When the wireless terminal is a mobile phone, the wireless terminal using the wireless LAN reception intensity, characterized in that it comprises a vibration mode conversion, ringtone size conversion, automatic answering mode conversion, or providing the place information for the caller to the mobile phone Method of operation.
The method according to claim 16 or 17,

In order to compare the newly generated signal fingerprint and the signal fingerprint set,

And a Euclidean distance between the newly generated signal fingerprint and each signal fingerprint included in the signal fingerprint set is calculated.
Signal fingerprint-The signal fingerprint is a collection of signal fingerprints, including the received strength measured at a specific location and information about the AP, for a wireless signal from an access point-The signal fingerprint set indicates a specific location Is a set of signal fingerprints stored in association with a Place Label.

And setting an operation or an application to be executed by a wireless terminal located at the specific place in association with a place label indicating the specific place so as to be ready to be transmitted to the wireless terminal.
Signal fingerprint-The signal fingerprint is a collection of signal fingerprints, including the received strength measured at a specific location and information about the AP, for a wireless signal from an access point-The signal fingerprint set indicates a specific location Is a set of signal fingerprints stored in association with a Place Label.

Transmitting at least one operation setting prepared in association with the place label so that an operation or an application of the wireless terminal corresponding to the place label is executed at a specific place indicated by the place label,

When a location label indicating a location where the wireless terminal is located is determined by a newly generated signal fingerprint according to the location of the wireless terminal, an operation or an application of the wireless terminal corresponding to the location label is executed. Method for automatically setting the operation of a wireless terminal using the wireless LAN reception strength.
The method according to claim 22,

The place label,

The operation of the wireless terminal using the wireless LAN reception strength, characterized in that only the counterpart set to be able to check when the place label indicating the location of the wireless terminal is set to be disclosed before being connected to the wireless terminal. Auto setup method.
The method according to claim 22,

The operation or application,

When the wireless terminal is a mobile phone, the wireless terminal using a wireless LAN reception intensity, characterized in that it comprises a vibration mode conversion, ringtone size conversion, automatic answering mode conversion, or providing the place information for the caller to the mobile phone How to auto set operation.