CN105652242A - Indoor positioning system based on ZigBee technology - Google Patents
Indoor positioning system based on ZigBee technology Download PDFInfo
- Publication number
- CN105652242A CN105652242A CN201610186090.7A CN201610186090A CN105652242A CN 105652242 A CN105652242 A CN 105652242A CN 201610186090 A CN201610186090 A CN 201610186090A CN 105652242 A CN105652242 A CN 105652242A
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- Prior art keywords
- label
- coordinator
- reference label
- router
- server
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0081—Transmission between base stations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0273—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves using multipath or indirect path propagation signals in position determination
Abstract
The invention discloses an indoor positioning system based on the ZigBee technology. The indoor positioning system comprises a server, a coordinator, routers, reference labels and labels to be positioned. The server is composed of a database management system and a positioning system. The coordinator, the routers, the reference labels and the labels to be positioned are composed of CC2530 chips, single chip microcomputers and power sources. The coordinator, the routers, the reference labels and the labels to be positioned establish a ZigBee wireless network through an ad-hoc network, the routers obtain signal strength values and addresses the reference labels and the labels to be positioned through ZigBee wireless signals and transfer the signal strength values and the addresses to the coordinator, the coordinator receives data and uploads the data to the server, the server processes the data, and an improved LANDMARC algorithm is utilized to achieve the positioning function. The indoor positioning system based on the ZigBee technology solves the problems that the existing indoor positioning technology is low in positioning precision and high in cost, and a novel indoor positioning technology is provided.
Description
Technical field
The invention belongs to positioning field, particularly relate to a kind of indoor locating system based on ZigBee technology.
Background technology
Present stage, along with the development of large-scale indoor exhibition pipe and warehouse, and to the demand of personnel tracking location in mine, indoor positioning technologies receives people and more and more pays close attention to. Existing indoor positioning technologies has WiFi, ZigBee, RF identification (RFID), bluetooth and ultra broadband location etc., radio-frequency technique is the indoor positioning technologies being most widely used now, but also there is the deficiency of himself, first it is that operating distance is near, not there is communication capacity, and be not easy to be incorporated among other system; Secondly system hardware can not directly provide the signal strength values (RSSI) of reception, energy grade can only be provided, thus requiring that data are analyzed after obtaining energy grade by system, then calculate energy value, real-time positioning and positioning precision will be produced large effect by this. And ZigBee is as a kind of emerging short distance, low rate radio network technique, with its low-power consumption and low cost, there is vast potential for future development, therefore the research of ZigBee technology is had very important significance. And ZigBee label can directly provide signal strength values, it is possible to accelerate locating speed, also avoid in radio frequency positions owing to energy grade divides the impact that positioning precision is caused simultaneously.
For alignment system, most crucial technology is location algorithm, and algorithm such as LANDMARC, Fang algorithm and VIRE algorithm relatively more classical in existing indoor positioning technologies, these algorithms are all respectively arranged with the pluses and minuses of oneself. And the creationary concept introducing reference label of traditional LANDMARC location algorithm, counteract the environmental factors impact on positioning precision, improve positioning precision.
But in LANDMARC alignment system, select the nearest reference label of label to be measured, then utilize the coordinate figure of reference label to try to achieve the coordinate figure of label to be positioned. Algorithm is chosen four nearest reference label, although say in square layout it is optimum selection number, if but there is certain error in measured data, so hi-Fix result can be produced large effect.
Application along with indoor positioning technologies, the particularly location of precision instrument parts in some particular application, such as factory, books location, production link location etc. in library, need higher positioning precision, so tradition location algorithm can not practical requirement.
Summary of the invention
High in order to solve cost in existing indoor positioning, the problem that positioning precision is low, the present invention devises a kind of indoor locating system based on ZigBee technology.
A kind of indoor locating system based on ZigBee technology provided by the present invention, including server, coordinator, router, reference label and label to be positioned. Described server is made up of with alignment system data base management system, and described coordinator, router, reference label and label to be positioned are by CC2530 chip, single-chip microcomputer and electric power generating composition. Coordinator, router, reference label and label to be positioned set up ZigBee wireless network by MANET, wherein, router passes through ZigBee wireless signal, obtain signal strength values and the address of reference label and label to be positioned, it is transmitted to coordinator, coordinator receives data and uploads onto the server, and data are processed by server, utilizes the LANDMARC algorithm improved to realize positioning function.
Described reference label is arranged on the distance in region, location and between reference label for 1-5 rice at equal intervals with the form of quadrate array.
Described router is separately mounted to four edges in region, location.
The LANDMARC algorithm of described improvement is the combination of tradition LANDMARC algorithm and centroid algorithm, by setting up the scatterplot between signal intensity and distance, utilize three secondary data matchings in fitting of a polynomial, obtain the function curve of signal intensity and distance, then the signal strength values received is converted to distance, calculate reference label and label to be positioned respectively to the distance between router, obtain four nearest with tag distances to be positioned reference label, last appoint from four reference label take three as LANDMARC algorithm closest to reference label, obtain four groups of coordinate points to be positioned, recycling centroid algorithm, take the barycenter of four coordinates to be positioned as the final elements of a fix.
Accompanying drawing explanation
Fig. 1 is based on the indoor locating system structural representation of ZigBee technology.
Fig. 2 is based on the indoor locating system block diagram of ZigBee technology.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
According to Fig. 1, a kind of indoor locating system based on ZigBee technology provided by the present invention, including server, coordinator, router, reference label and label to be positioned. Described server is made up of with alignment system data base management system, and described coordinator, router, reference label and label to be positioned are by CC2530 chip, single-chip microcomputer and electric power generating composition. Coordinator, router, reference label and label to be positioned set up ZigBee wireless network by MANET, wherein, router passes through ZigBee wireless signal, obtain signal strength values and the address of reference label and label to be positioned, it is transmitted to coordinator, coordinator receives data and uploads onto the server, and data are processed by server, utilizes the LANDMARC algorithm improved to realize positioning function.
Described reference label is arranged on the distance in region, location and between reference label for 1-5 rice at equal intervals with the form of quadrate array.
Described router is separately mounted to four edges in region, location.
The LANDMARC algorithm of described improvement is the combination of tradition LANDMARC algorithm and centroid algorithm, by setting up the scatterplot between signal intensity and distance, utilize three secondary data matchings in fitting of a polynomial, obtain the function curve of signal intensity and distance, then the signal strength values received is converted to distance, calculate reference label and label to be positioned respectively to the distance between router, obtain four nearest with tag distances to be positioned reference label, last appoint from four reference label take three as LANDMARC algorithm closest to reference label, obtain four groups of coordinate points to be positioned, recycling centroid algorithm, take the barycenter of four coordinates to be positioned as the final elements of a fix.
According to Fig. 2, the described indoor locating system specific works flow process based on ZigBee technology: after the mobile object carrying label to be positioned enters region, location, label to be positioned can be automatically added to by coordinator, the ZigBee wireless network that router and reference label are constituted, obtain the signal strength values of reference label and label to be positioned and address by router and the data received and Self address be transmitted to coordinator simultaneously, coordinator receives data and uploads onto the server, data storage is analyzed by server, pass through data fitting, signal strength data is converted to distance, recycling improves LANDMARC algorithm, calculate the coordinate figure of label to be positioned, and on software, demonstrate the particular location of label to be positioned in real time.
Claims (4)
1. based on an indoor locating system for ZigBee technology, including server, coordinator, router, reference label and label to be positioned; Described server is made up of with alignment system data base management system, and described coordinator, router, reference label and label to be positioned are by CC2530 chip, single-chip microcomputer and electric power generating composition; Coordinator, router, reference label and label to be positioned set up ZigBee wireless network by MANET, wherein, router passes through ZigBee wireless signal, obtain signal strength values and the address of reference label and label to be positioned, it is transmitted to coordinator, coordinator receives data and uploads onto the server, and data are processed by server, utilizes the LANDMARC algorithm improved to realize positioning function.
2. the indoor locating system based on ZigBee technology according to claim 1, it is characterised in that described reference label is arranged on the distance in region, location and between reference label for 1-5 rice at equal intervals with the form of quadrate array.
3. according to claim 1 based on ZigBee technology indoor locating system, it is characterised in that described router is separately mounted to four edges in region, location.
4. the indoor locating system based on ZigBee technology according to claim 1, it is characterized in that, the LANDMARC algorithm of described improvement is the combination of tradition LANDMARC algorithm and centroid algorithm, by setting up the scatterplot between signal intensity and distance, utilize three secondary data matchings in fitting of a polynomial, obtain the function curve of signal intensity and distance, then the signal strength values received is converted to distance, calculate reference label and label to be positioned respectively to the distance between router, obtain four nearest with tag distances to be positioned reference label, last appoint from four reference label take three as LANDMARC algorithm closest to reference label, obtain four groups of coordinate points to be positioned, recycling centroid algorithm, take the barycenter of four coordinates to be positioned as the final elements of a fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610186090.7A CN105652242B (en) | 2016-03-29 | 2016-03-29 | Indoor locating system based on ZigBee technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610186090.7A CN105652242B (en) | 2016-03-29 | 2016-03-29 | Indoor locating system based on ZigBee technology |
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| Publication Number | Publication Date |
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| CN105652242A true CN105652242A (en) | 2016-06-08 |
| CN105652242B CN105652242B (en) | 2018-07-06 |
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| CN201610186090.7A Expired - Fee Related CN105652242B (en) | 2016-03-29 | 2016-03-29 | Indoor locating system based on ZigBee technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597371A (en) * | 2016-12-22 | 2017-04-26 | 上海市共进通信技术有限公司 | Indoor personnel positioning monitoring system and method |
| ITUA20164254A1 (en) * | 2016-06-10 | 2017-12-10 | Greta Sasso | tracking and tracking system |
| CN107889059A (en) * | 2017-11-20 | 2018-04-06 | 电子科技大学 | A kind of network-building method for indoor positioning |
| CN110210268A (en) * | 2019-06-05 | 2019-09-06 | 北京京投信安科技发展有限公司 | RFID high-precision location technique based on LANDMARC algorithm |
| CN110736994A (en) * | 2018-07-18 | 2020-01-31 | 北京小米移动软件有限公司 | Distance detection function establishing method and device and distance detection method and device |
| CN112985499A (en) * | 2021-02-07 | 2021-06-18 | 河北览惠科技有限公司 | Multi-parameter engineering structure health recognition system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUA20164254A1 (en) * | 2016-06-10 | 2017-12-10 | Greta Sasso | tracking and tracking system |
| CN106597371A (en) * | 2016-12-22 | 2017-04-26 | 上海市共进通信技术有限公司 | Indoor personnel positioning monitoring system and method |
| CN107889059A (en) * | 2017-11-20 | 2018-04-06 | 电子科技大学 | A kind of network-building method for indoor positioning |
| CN110736994A (en) * | 2018-07-18 | 2020-01-31 | 北京小米移动软件有限公司 | Distance detection function establishing method and device and distance detection method and device |
| CN110736994B (en) * | 2018-07-18 | 2021-09-07 | 北京小米移动软件有限公司 | Distance detection function establishing method and device and distance detection method and device |
| CN110210268A (en) * | 2019-06-05 | 2019-09-06 | 北京京投信安科技发展有限公司 | RFID high-precision location technique based on LANDMARC algorithm |
| CN112985499A (en) * | 2021-02-07 | 2021-06-18 | 河北览惠科技有限公司 | Multi-parameter engineering structure health recognition system |
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| Publication number | Publication date |
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| CN105652242B (en) | 2018-07-06 |
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