CN102196424A - Organization mechanism of centralized large-scale wireless sensing network - Google Patents
Organization mechanism of centralized large-scale wireless sensing network Download PDFInfo
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- CN102196424A CN102196424A CN2010101428579A CN201010142857A CN102196424A CN 102196424 A CN102196424 A CN 102196424A CN 2010101428579 A CN2010101428579 A CN 2010101428579A CN 201010142857 A CN201010142857 A CN 201010142857A CN 102196424 A CN102196424 A CN 102196424A
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Abstract
The invention relates to the technical field of information and communication, in particular to an organization mechanism of a centralized large-scale wireless sensing network and an implementation device. In the technical scheme, a sensing gateway controller realizes the functions of management, monitoring, dynamic configuration, control and the like of the large-scale wireless sensing network. A wireless sensing access point can be regarded as a lightweight sensing gateway; and data forwarding functions of a sensor and the sensing gateway controller and topology maintenance and management functions of the local wireless sensing network are realized under the control of the sensing gateway controller. The wireless sensing gateway controller uniformly configures and controls the wireless sensing access points in the wireless sensing network, and uniformly bridges, forwards and encrypts the traffic of the sensing network to enhance the manageability of the large-scale wireless sensing network. Therefore, efficient organization, centralized control and management of the large-scale wireless sensing network can be realized.
Description
Technical field
The present invention relates to the Information ﹠ Communication Technology field, relate in particular to a kind of novel centralized large-scale wireless sensing network organization mechanism and implement device.
Background technology
In recent years, the radio sensing network technology has obtained development fast.But the scale of the radio sensing network of disposing is also generally very little at present.Along with the popularization gradually of ubiquitous sensing network business, the foundation of large-scale wireless sensing network and use will be the important trend of next step development of radio sensing network.
Fig. 1 shows the network topology structure schematic diagram of prior art.In radio sensing network, the sensing gateway is used to management control sensing network usually, and the communication interface of realization and external network.The startup of a sensing gateway needs a large amount of configuration efforts.For a large-scale sensing network, need usually to dispose a large amount of sensing gateways, and need carry out dynamic management, supervision and control each sensing gateway.For an extensive sensing network that comprises hundreds and thousands of sensing gateways, the burden of network management will be very big.Aspect service management, in order to obtain better service feature, need carry out dynamic coordinate, but, reach very difficulty of this point because the sensing gateway is relatively independent at the whole network.The fail safe aspect, because the covering demand, the sensing gateway is installed in through regular meeting can't guarantee safe place, if the sensing gateway is stolen, the configuration information that static state is kept in the sensing gateway will become leak channel.Simultaneously, how to prevent that illegal sensing gateway access from also having proposed challenge to the fail safe of sensing network.At present, these also do not have suitable solution from the problem that the small-scale radio sensing network runs into to the evolution of large-scale wireless sensing network.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention proposes a kind of organization mechanism and device of novel centralized radio sensing network.Thereby can solve the problem of large-scale wireless sensing network effectively at aspects such as network management, safety, professional control and interoperabilities.
According to a first aspect of the invention, a kind of novel centralized radio sensing network architecture is provided, as can be seen from Figure 2, compare present radio sensing network architecture, centralized radio sensing network architecture has increased this key element of sensing gateway controller, the sensing gateway controller can be regarded as one group of logical device, has realized the function such as management, monitoring, dynamic-configuration, control of the whole network.The wireless sensing access point is different with the sensing gateway of present radio sensing network, the sensing gateway has been realized overall network management, control and the data forwarding function of sensing network, and the wireless sensing access point only need be realized wherein partial function, as: sensing net physical layer, MAC layer function etc.Therefore, the sensing gateway that can regard the wireless sensing access point as lightweight.As shown in Figure 3, three kinds of connected modes are arranged between sensing gateway controller and the wireless sensing access point: directly connection, two layers of exchange connect and are connected with three layers of route.Wherein, three layers of route connect makes the wireless sensing access point connect the sensing gateway controller by IP network, thereby makes the deployment of wireless sensing access point more flexible.
According to a second aspect of the invention, provide a kind of control device of sensing gateway controller, wherein, having comprised: wireless sensing access point inking device is used to realize configuration and dynamic management to the wireless sensing access point; Wireless sensing access point firmware loading attachment is used to realize the dynamic loading function to wireless sensing access point firmware program; Sensing network middleware device is used to realize sensing network control and data processing functions such as task scheduling, transducer access control, data filter, data aggregate; The interactive authentication device, be used to realize and the wireless sensing access point between the two-way authentication function; Wave point management and inking device are used to realize to the parameter dynamic-configuration of wireless sensing access point at sensing network side wave point; The control flows R-T unit is used for setting up safe transmission tunnel between sensing gateway control apparatus and wireless sensing access point apparatus, realizes the transmission and the reception of control flows; The data flow R-T unit is used for setting up safe transmission tunnel between sensing gateway control apparatus and wireless sensing access point apparatus, realizes the transmission and the reception of data flow; First deriving means is used to obtain data flow and control flows information from the wireless sensing access point; First dispensing device is used to send data flow and controls flow to the wireless sensing access point.The major part management and the controlled function of radio sensing network realize on sensing gateway control apparatus.The sensing gateway controller is to centralized and unified configuration of wireless sensing access point and control in the radio sensing network, to carrying out bridge joint, forwarding and encryption in the sensing network flow set, to strengthen the manageability of large-scale wireless sensing network.
According to a third aspect of the invention we, a kind of processing unit that is used for the wireless sensing access point is provided, wherein, has comprised: the control flows R-T unit, be used between sensing gateway control apparatus and wireless sensing access point apparatus, setting up the safe transmission tunnel, realize the transmission and the reception of control flows; The data flow R-T unit is used for setting up the safe transmission tunnel between sensing gateway control apparatus and wireless sensing access point apparatus, realizes the transmission and the reception of data flow; The access point management devices is used for according to the requirement of sensing gateway control apparatus the wireless sensing access point being carried out dynamic-configuration and management, and realizes the topological maintenance and management of local wireless sensor network that the wireless sensing access point is connected; The access point firmware loading attachment, the firmware update version that is used for transmitting according to the sensing gateway controller is realized the dynamic loading function to wireless sensing access point firmware program; The interactive authentication device, be used to realize and the sensing gateway controller between the two-way authentication function; Wave point management and inking device are used to realize to the dynamic-configuration of wireless sensing access point in the parameter of sensing network side wave point; Second deriving means is used to receive the data traffic of self-sensing gateway controller; The 3rd deriving means is used to receive the data traffic from transducer; Second dispensing device is used to send data traffic to the sensing gateway controller; The 3rd dispensing device is used to send data traffic to transducer.
A kind of startup flow process of wireless sensing access point is provided according to a forth aspect of the invention.Wherein, comprise following key step: the sensing gateway controller is found; The sensing gateway controller connects; Wireless sensing access point version loads; Wireless sensing access point dynamic-configuration.
A kind of message implementation method of centralized wireless sense network is provided according to a fifth aspect of the invention.In centralized wireless sense network, the communication flows between sensing gateway controller and the wireless sensing access point is divided into control message and data message two classes.The control message only transmits between sensing gateway controller and wireless sensing access point, realizes functions such as configuration, management, monitoring; Data message then refers to the up-downgoing data flow that need transmit between sensing gateway controller and wireless sensing access point, as: the data flow that sends to radio sensing network from external communication network, send to the data flow of external communication network from radio sensing network, or the like.Two kinds of messages transmit by different udp ports, and except that " discovery is asked/replied " was plaintext transmission, DTLS (transport layer data bag security protocol) protection was used in other pressure in the control message, and data message can select whether to use DTLS.
A kind of dynamic management approach of centralized wireless sense network is provided according to a sixth aspect of the invention.The sensing gateway controller is dynamically changed the configuration of wireless sensing access point by the control message, obtains wireless sensing access point running status, sensor information, sensing network topology information or the like, thereby realizes the dynamic management to whole radio sensing network.
According to a seventh aspect of the invention, provide data flow transmission method between a kind of centralized radio sensing network and the external communication network.The wireless sensing access point is encrypted the data flow from transducer, is encapsulated in the DTLS tunnel, sends to the sensing gateway controller; The sensing gateway controller is decrypted this data flow, and the data flow after the reduction is continued to be forwarded to external communication network.The sensing gateway controller is encrypted the data flow that will mail to radio sensing network that receives from external communication network, is encapsulated in the DTLS tunnel, sends to the wireless sensing access point; The wireless sensing access point is decrypted this data flow, and the data flow after the reduction is continued to be forwarded to transducer.
Adopt the solution of the present invention, can realize efficient tissue, integrated control ﹠ management large-scale wireless sensing net.
Description of drawings
Read following detailed description to non-limiting example by the reference accompanying drawing, other features, objects and advantages of the present invention will become more obvious.Illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the network topology structure schematic diagram of prior art;
Fig. 2 shows the centralized radio sensing network architectural schematic according to a specific embodiment of the present invention;
Fig. 3 shows the internetwork connection mode schematic diagram according to the centralized radio sensing network of a specific embodiment of the present invention;
Fig. 4 shows the startup flow chart according to the wireless sensing access point of a specific embodiment of the present invention;
Fig. 5 shows the discovery flow chart according to the sensing gateway controller of a specific embodiment of the present invention;
Fig. 6 shows the control device schematic diagram according to the sensing gateway controller of a specific embodiment of the present invention;
Fig. 7 shows the processing unit schematic diagram according to the wireless sensing access point of a specific embodiment of the present invention;
Fig. 8 shows according to the centralized radio sensing network of a specific embodiment of the present invention and the data flow transmission flow chart between the external communication network.
Wherein, same or analogous Reference numeral is represented same or analogous steps characteristic or device/module.
Embodiment
Below in conjunction with accompanying drawing, preferred implementation of the present invention is described in detail.
As shown in Figure 3, the sensing gateway control apparatus that includes a specific embodiment of the present invention can be connected with the wireless sensing access point apparatus that includes a specific embodiment of the present invention by three kinds of connected modes.(1) directly link to each other: promptly sensing gateway control apparatus directly is connected by the Ethernet netting twine with the wireless sensing access point apparatus, connects middle switch or the router device of not existing of link.(2) two layers of exchange: promptly sensing gateway control apparatus and wireless sensing access point apparatus are positioned at same double layer network, are connected by Layer 2 switch between the two.(3) three layers of route connect: promptly can connect by any IP network between sensing gateway control apparatus and the wireless sensing access point apparatus.
Fig. 4 shows the startup flow process of the wireless sensing access point apparatus of a specific embodiment of the present invention.Wherein, may further comprise the steps:
Step S10, the sensing gateway controller is found.
Step S11 sets up that the DTLS between the selected sensing gateway control apparatus connects in the discovery procedure of wireless sensing access point apparatus and step S10.
Step S12, the wireless sensing access point apparatus sends " joining request " by the DTLS passage and gives sensing gateway control apparatus, and sensing gateway control apparatus is replied " adding is replied " and confirmed that the wireless sensing access point apparatus adds the range of management of this sensing gateway control apparatus.
Step S13 if the firmware version of wireless sensing access point apparatus is expired, then enters the firmware updating process.Otherwise, execution in step S16.
Step S14, the wireless sensing access point apparatus is downloaded up-to-date firmware from sensing gateway control apparatus, and upgrades firmware version.
Step S15, after the firmware version upgrade success, the wireless sensing access point apparatus is restarted, and reenters discovery procedure.
Step S16 if the firmware of wireless sensing access point apparatus is a latest edition, is configured the wireless sensing access point apparatus then from sensing gateway control apparatus download configuration parameter, and according to relevant parameter.
Step S17 enters the operation phase.
Fig. 5 shows the discovery flow process of sensing gateway controller.Wherein, may further comprise the steps:
Step S10, wireless sensing access point enter the process of finding the sensing gateway controller when being connected to network.The wireless sensing access point apparatus obtains the IP address list of sensing gateway control apparatus by DHCP or DNS.This process may obtain the 1 IP address to a plurality of sensing gateway control apparatuses.
The IP address list of the sensing gateway control apparatus that step S11, wireless sensing access point apparatus obtain according to the first step sends connection request to each sensing gateway control apparatus.
Step S12 receives that the sensing gateway control apparatus echo reply message of connection request is given the wireless sensing access point apparatus.The wireless sensing access point apparatus is waited for and is received the connection response message that sensing gateway control apparatus returns.
Step S13, wireless sensing access point apparatus select one as its sensing gateway controller in receiving the sensing gateway control apparatus of response message.
Fig. 6 shows the control device schematic diagram according to the sensing gateway controller of a specific embodiment of the present invention.It mainly comprises: wireless sensing access point inking device 101, wireless sensing access point firmware loading attachment 102, sensing network middleware device 103, interactive authentication device 104, wave point management and inking device 105, control flows R-T unit 106, data flow R-T unit 107, first deriving means 108, first dispensing device 109.Wherein:
Wireless sensing access point inking device 101 is used to realize dynamic-configuration and the management to the wireless sensing access point apparatus.After the wireless sensing access point apparatus started and found the sensing gateway controller, sensing gateway control apparatus can transmit configuration information to the wireless sensing access point apparatus.Wireless sensing access point inking device 101 is responsible for wireless sensing access point configuration information is sent to the wireless sensing access point apparatus that has connected.Wireless sensing access point apparatus itself can be a zero configuration, and all configuration informations all come the wireless sensing access point inking device 101 of self-sensing gateway controller.
Wireless sensing access point firmware loading attachment 102 is used to realize the dynamic loading function to wireless sensing access point firmware program.After the wireless sensing access point apparatus starts and has found the sensing gateway controller, the wireless sensing access point apparatus can report its firmware version information, if firmware version is not a latest edition, then the wireless sensing access point firmware loading attachment 102 of sensing gateway controller can carry out the redaction loading to the wireless sensing access point apparatus by transmission latest firmware version.
Sensing network middleware device 103 is used to realize sensing network control and data processing functions such as task scheduling, transducer access control, data filter, data aggregate.
Interactive authentication device 104 be used to realize and the wireless sensing access point apparatus between the two-way authentication function, thereby prevent that illegal sensing gateway controller or illegal wireless sensing access point are linked into wireless sensing network system.
Wave point management and inking device 105 are used to realize to the dynamic parameter configuration of wireless sensing access point apparatus at the sensing network side interface.The sensing network side interface is used for being connected with sensor node, and it can be the Zigbee interface, also can be the WiFi interface, or other radio network interfaces.Wave point management and inking device 105 can its all wireless sensing access point apparatus of being controlled of united and coordinating the parameter configuration of radio network interface.
Control flows R-T unit 106 is used for setting up the safe transmission tunnel between sensing gateway control apparatus and wireless sensing access point apparatus, realizes the transmission and the reception of control flows.Control flows information exists only between sensing gateway control apparatus and the wireless sensing access point apparatus, realizes dynamic control and management to the wireless sensing access point apparatus.
Data flow R-T unit 107 is used for setting up the safe transmission tunnel between sensing gateway control apparatus and wireless sensing access point apparatus, realizes the transmission and the reception of data flow.The wireless sensing access point apparatus data flow of autobiography sensor in the future is encapsulated in the tunnel, is sent to sensing gateway control apparatus, by continuing to be sent to external communication network after 107 deciphering of data flow R-T unit.The data traffic that while data flow R-T unit 107 also can send to radio sensing network is encapsulated in the DTLS tunnel, sends to the wireless sensing access point apparatus.
First deriving means 108 is used to receive control flows and traffic flow information from the wireless sensing access point.
First dispensing device 109 is used to send control flows and traffic flow information to the wireless sensing access point.
Fig. 7 is the structure embodiment of the processing unit of wireless sensing access point provided by the present invention, and it mainly comprises: control flows R-T unit 201, data flow R-T unit 202, access point management devices 203, access point firmware loading attachment 204, interactive authentication device 205, wave point management and inking device 206, second deriving means 207, the 3rd deriving means 208, second dispensing device 209, the 3rd dispensing device 210.Wherein:
Control flows R-T unit 201 is used for setting up the safe transmission tunnel between sensing gateway control apparatus and wireless sensing access point apparatus, realizes the transmission and the reception of control flows.
Data flow R-T unit 202 is used for setting up the transmission tunnel between sensing gateway control apparatus and wireless sensing access point apparatus, realizes the transmission and the reception of data flow.Data flow R-T unit 202 will be encapsulated in from the data flow of wireless senser in the data flow transmission tunnel, be sent to sensing gateway control apparatus; After also the data flow of self-sensing gateway controller is deciphered in the future simultaneously, be forwarded to wireless senser.
Access point management devices 203 is used for according to the requirement of sensing gateway control apparatus the wireless sensing access point apparatus being carried out dynamic-configuration and management.After the wireless sensing access point apparatus started and found the sensing gateway controller, sensing gateway control apparatus can transmit configuration information to the wireless sensing access point apparatus.Wireless sensing access point inking device 203 can carry out relevant configuration to the wireless sensing access point apparatus after receiving relevant configuration information.Wireless sensing access point itself can be a zero configuration, and all configuration informations all come self-sensing gateway controller device.Access point management devices 203 also be responsible for to be realized the topological maintenance and management of local wireless sensor network that the wireless sensing access point apparatus is connected.
Access point firmware loading attachment 204 is used to realize the dynamic loading function to wireless sensing access point firmware program.After the wireless sensing access point apparatus starts and has found sensing gateway control apparatus, the wireless sensing access point apparatus can report its firmware version information, if firmware version is not a latest edition, then sensing gateway control apparatus can transmit the latest firmware version to the wireless sensing access point apparatus.Access point firmware loading attachment 204 will utilize the original firmware version of the original renewal of latest edition.
Interactive authentication device 205 be used to realize and sensing gateway control apparatus between the two-way authentication function, thereby prevent that illegal sensing gateway control apparatus or illegal wireless sensing access point apparatus are linked into wireless sensing network system.
Wave point management and inking device 206 are used to realize to the parameter dynamic-configuration of wireless sensing access point apparatus at sensing network side wave point.Sensing network side wave point can be the Zigbee interface, also can be the WiFi interface, or even other radio network interfaces.
Second deriving means 207 is used to receive the control and the data traffic of self-sensing gateway controller device.
The 3rd deriving means 208 is used to receive control and the data traffic from transducer.
Second dispensing device 209 is used for sending control and data traffic to sensing gateway control apparatus.
The 3rd dispensing device 210 is used for sending control and data traffic arrives transducer.
According to the embodiment of the invention, the data flow transmission flow process between a kind of centralized radio sensing network and the external communication network also is provided, it can use above-mentioned system configuration and device.
Introduce this flow process according to Fig. 8 and in conjunction with Fig. 2 below.This flow process comprises following treatment step:
Step S10, the wireless sensing access point apparatus receives the data flow from transducer 1;
Step S11, the wireless sensing access point apparatus encapsulates the data flow that receives;
Step S12, wireless sensing access point apparatus utilize the DTLS tunnel to send data flow to sensing gateway control apparatus;
Step S13, sensing gateway control apparatus carries out decapsulation to the data flow of receiving, and carries out the predefined various relevant treatment of equipment;
The data flow that step S14, sensing gateway control apparatus will need further to transmit is forwarded to external communication network (as: Internet), as: send to the sensing network application server that connects by Internet;
Step S15, sensing gateway control apparatus receives the data flow that will issue transducer 1 from external communication network, as: the data flow that sends to transducer 1 by the sensing network application server of the long-range connection of Internet;
Step S16, sensing gateway control apparatus flows to row to data and handles and encapsulate;
Step S17, sensing gateway control apparatus utilizes the DTLS tunnel that data flow is sent to the wireless sensing access point apparatus;
Step S18, the wireless sensing access point apparatus carries out decapsulation to the data flow of receiving;
Step S19, the data that the wireless sensing access point apparatus is transmitted after the decapsulation flow to transducer 1.
A plurality of details of describing among the said equipment embodiment are equally applicable to method embodiment, therefore, have omitted being repeated in this description same or similar part.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, as to be done any modifications are equal to replacement, improve etc., all should be included within protection scope of the present invention.
Claims (10)
1. centralized radio sensing network architecture is characterized in that:
A) the sensing gateway controller is the core control devices of whole radio sensing network, realizes the functions such as unified management, monitoring, dynamic-configuration, control, data processing and forwarding of the whole network by all the wireless sensing access points in the Control Network.
B) the wireless sensing access point can be regarded as the sensing gateway of lightweight, and it is implemented to the data forwarding function of transducer and sensing gateway controller under the control of sensing gateway controller, and the topology of local radio sensing network is safeguarded and management function.
C) three kinds of connected modes are arranged between sensing gateway controller and the wireless sensing access point: directly connection, two layers of exchange connect and are connected with three layers of route.
2. radio sensing network architecture according to claim 1, the startup flow process of wireless sensing access point comprises following key step:
A) the sensing gateway controller is found;
B) the sensing gateway controller connects;
C) wireless sensing access point version loads;
D) wireless sensing access point dynamic-configuration.
3. the startup flow process of wireless sensing access point according to claim 2, described step a comprises:
A1. obtain the IP address list of sensing gateway controller by DHCP or DNS;
A2. the IP address list of the sensing gateway controller that obtains according to the a1 step of wireless sensing access point sends connection request to each sensing gateway controller;
A3. the sensing gateway controller echo reply message of receiving connection request is to the wireless sensing access point;
A4. the wireless sensing access point is selected one as its sensing gateway controller in the sensing gateway controller of replying.
4. according to the described centralized radio sensing network architecture of claim 1-3, the dynamic management approach of centralized wireless sense network is characterised in that: the sensing gateway controller is dynamically changed the configuration of wireless sensing access point by the control message, obtain wireless sensing access point running status, sensor information, sensing network topology information or the like, thereby realize dynamic management whole wireless sense network.
5. according to the described centralized radio sensing network architecture of claim 1-4, the message implementation method of centralized wireless sense network is characterised in that:
A) communication flows between sensing gateway controller and the wireless sensing access point is divided into control message and data message two classes;
B) the control message only transmits between sensing gateway controller and wireless sensing access point, realizes functions such as configuration, management, monitoring, version updating;
C) data message refers to the up-downgoing data flow that need transmit between sensing gateway controller and wireless sensing access point;
D) the control message transmits by different udp ports with data message;
E) in the control message except that " discovery is asked/replied " is plaintext transmission, other pressure uses DTLS to protect, and data message can select whether to use DTLS.
6. according to the described centralized radio sensing network architecture of claim 1-5, the data flow transmission method of centralized wireless sense network may further comprise the steps:
A) the wireless sensing access point receives the data flow from transducer;
B) the wireless sensing access point encapsulates the data flow of receiving;
C) the wireless sensing access point utilizes the DTLS tunnel that data flow is sent to the sensing gateway controller;
D) the sensing gateway controller carries out decapsulation and relevant treatment to data stream;
E) the sensing gateway controller will need the data flow of further forwarding to be forwarded to external communication network;
F) the sensing gateway controller receives the data flow that will issue transducer;
G) the sensing gateway controller encapsulates data flow;
H) the sensing gateway controller utilizes the DTLS tunnel that data flow is sent to the wireless sensing access point;
I) the wireless sensing access point carries out decapsulation to data stream;
J) data after the wireless sensing access point forwarding decapsulation flow to transducer.
7. the control device of a sensing gateway controller wherein, comprising:
Wireless sensing access point inking device is used to realize configuration and dynamic management to the wireless sensing access point;
Wireless sensing access point firmware loading attachment is used to realize the dynamic loading function to wireless sensing access point firmware program;
Sensing network middleware device is used to realize functions such as task scheduling, transducer access control, data filter, data aggregate;
The interactive authentication device, be used to realize and the wireless sensing access point between the two-way authentication function;
Wave point management and inking device are used to realize to the dynamic-configuration of wireless sensing access point in the parameter of sensing network side wave point;
The control flows R-T unit is used for setting up the safe transmission tunnel between sensing gateway controller and wireless sensing access point, realizes the transmission and the reception of control flows;
The data flow R-T unit is used for setting up the transmission tunnel between sensing gateway controller and wireless sensing access point, realizes the transmission and the reception of data flow;
First deriving means is used to receive control flows and traffic flow information from the wireless sensing access point;
First dispensing device is used to send control flows and traffic flow information to the wireless sensing access point.
8. the processing unit of a wireless sensing access point wherein, comprising:
The control flows R-T unit is used for setting up the safe transmission tunnel between sensing gateway controller and wireless sensing access point, realizes the transmission and the reception of control flows;
The data flow R-T unit is used for setting up the transmission tunnel between sensing gateway controller and wireless sensing access point, realizes the transmission and the reception of data flow;
The access point management devices is used for according to the requirement of sensing gateway controller the wireless sensing access point being configured and managing, and realizes the topological maintenance and management of local wireless sensor network that the wireless sensing access point is connected;
The access point firmware loading attachment is used to realize the dynamic loading function to wireless sensing access point firmware program;
The interactive authentication device, be used to realize and the sensing gateway controller between the two-way authentication function;
Wave point management and inking device are used to realize to the dynamic-configuration of wireless sensing access point in the parameter of sensing network side wave point;
Second deriving means is used to receive the data flow from external communication network;
The 3rd deriving means is used to receive data flow and control flows from transducer;
Second dispensing device is used to send packet to external communication network;
The 3rd dispensing device is used to send packet to transducer.
9. the sensing gateway controller equipment at communication network comprises control device according to claim 7.
10. the wireless sensing access point apparatus at communication network comprises processing unit according to claim 8.
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| CN102340554B (en) * | 2011-09-29 | 2014-04-02 | 奇智软件（北京）有限公司 | Optimal application server selection method and device for domain name system (DNS) |
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| CN103118439B (en) * | 2013-01-18 | 2016-03-23 | 中国科学院上海微系统与信息技术研究所 | based on the data fusion method of sensor network node universal middleware |
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