CN102547927A - Method for discovering ubiquitous sensor network controller - Google Patents
Method for discovering ubiquitous sensor network controller Download PDFInfo
- Publication number
- CN102547927A CN102547927A CN2010106231853A CN201010623185A CN102547927A CN 102547927 A CN102547927 A CN 102547927A CN 2010106231853 A CN2010106231853 A CN 2010106231853A CN 201010623185 A CN201010623185 A CN 201010623185A CN 102547927 A CN102547927 A CN 102547927A
- Authority
- CN
- China
- Prior art keywords
- network controller
- sensing network
- ubiquitous
- wireless
- multiplexing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to the technical field of information and communications, in particular to a method for discovering a ubiquitous sensor network controller in a centralized control wireless sensor network. A novel architecture and networking equipment of the centralized control wireless sensor network are designed to solve the problems of controllability and manageability of the large-scale wireless sensor networks. In the networking architecture, the ubiquitous sensor network controller realizes the functions such as management, monitoring, dynamic configuration, control and the like of the whole wireless sensor network. Wireless sensor access multiplexing equipment is controlled by the ubiquitous sensor network controller to realize topology maintenance and management control of local wireless sensor networks. By adopting the method, the wireless sensor access multiplexing equipment is helped to automatically discover the available ubiquitous sensor network controllers in the network and select the best ubiquitous sensor network controller to establish network connection, thus being part of wireless sensor network topology controlled by the ubiquitous sensor network controller.
Description
Technical field
The present invention relates to communication network, relate in particular to the discover method of a kind of ubiquitous sensing network controller in the centralized control formula radio sensing network.
Background technology
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.
In order to solve the problems referred to above that exist in the prior art, as shown in Figure 1, a kind of architecture of novel centralized control formula radio sensing network and networking equipment-ubiquitous sensing network controller and wireless sensing access and multiplexing device are suggested.Thereby can solve the problem of large-scale wireless sensing network effectively at aspects such as network management, safety, professional control and interoperabilities.
Compare present radio sensing network architecture; This novel centralized control formula radio sensing network architecture has increased ubiquitous sensing network controller and these two key elements of wireless sensing access and multiplexing device; A large-scale wireless sensing network can dispose a ubiquitous sensing network controller and hundreds and thousands of wireless sensing access and multiplexing devices, and the wireless sensor node of being managed more can further expand to hundreds thousand of and even millions of scales.
Ubiquitous sensing network controller can be regarded as one group of logical device, has realized the function such as management, monitoring, dynamic-configuration, control of whole radio sensing network.The wireless sensing access and multiplexing device is the control appliance of the radio sensing network in the local scope, and it realizes the topological maintenance and management control to the radio sensing network in the local scope under the control of ubiquitous sensing network controller.
Summary of the invention
The present invention is directed to centralized control formula radio sensing network architecture and networking equipment shown in Figure 1; A kind of discover method of ubiquitous sensing network controller has been proposed; Thereby help the wireless sensing access and multiplexing device to find ubiquitous sensing network controller available in the network automatically and select best ubiquitous sensing network controller to set up network to connect, thereby become the part in the radio sensing network topology that ubiquitous sensing network controller controlled.
The wireless sensing access and multiplexing device can get into the Discovery Status of ubiquitous sensing network controller under two kinds of situation:
(1) the wireless sensing access and multiplexing device just powers on or restarts, and when initial work is accomplished, needs to find available ubiquitous sensing network controller, and is attached thereto, to become the part in its radio sensing network topology of being controlled;
When (2) the wireless sensing access and multiplexing device connects interruption with the ubiquitous sensing network controller communication that has been connected; The wireless sensing access and multiplexing device need rediscover available ubiquitous sensing network controller; And be attached thereto, to become the part in the radio sensing network topology again.
According to a first aspect of the invention, provide ubiquitous sensing network controller to find the request message definition.Ubiquitous sensing network controller finds that institute's loaded information comprises in the request message: find type, wireless sensing access and multiplexing device hardware description unit, wireless sensing access and multiplexing device description unit, wireless sensing access and multiplexing device management mode, wireless senser communication interface type.Wherein, find that type is used to represent that the wireless sensing access and multiplexing device obtains the method that has information of ubiquitous sensing network controller; Wireless sensing access and multiplexing device hardware description unit is used to carry the hardware information of wireless sensing access and multiplexing device; Wireless sensing access and multiplexing device description unit is used to carry wireless sensing access and multiplexing device information; Wireless sensing access and multiplexing device management mode is used to represent the management mode of wireless sensing access and multiplexing device; Wireless senser communication interface type refers to the wireless interface type of communicating by letter with wireless senser that the wireless sensing access and multiplexing device is provided.
Ubiquitous sensing network controller finds that request message is used for the ubiquitous sensing network controller of finding that automatically network is available by the wireless sensing access and multiplexing device.The basic capacity that ubiquitous sensing network controller is found to transmit the wireless sensing access and multiplexing device in the request message is to ubiquitous sensing network controller.A wireless sensing access and multiplexing device must provide these information to ubiquitous sensing network controller, with guarantee and the functional characteristics of information exchange that ubiquitous sensing network controller is follow-up and wireless sensing access and multiplexing device consistent.
According to a second aspect of the invention, provide ubiquitous sensing network controller to find the response message definition.Ubiquitous sensing network controller is replied the ubiquitous sensing network controller that receives with ubiquitous sensing network controller discovery response message and is found request message.Ubiquitous sensing network controller finds that institute's loaded information comprises in the response message: the radio sensing network communication interface type that ubiquitous sensing network controller description unit, ubiquitous sensing network controller title, ubiquitous sensing network controller are supported, alternative ubiquitous sensing network controller unit.Wherein, ubiquitous sensing network controller description unit is used to carry ubiquitous sensing network controller descriptor; Ubiquitous sensing network controller title is made up of the character string of the ubiquitous sensing network controller of sign; The radio sensing network communication interface type of ubiquitous sensing network controller support is meant that said ubiquitous sensing network controller can support which radio sensing network communication interface the wireless sensing access and multiplexing device has; Substituting ubiquitous sensing network controller unit is made up of ubiquitous sensing network controller IP address and the two-part tabulation of wireless sensing access and multiplexing device number of connection.Wherein, Ubiquitous sensing network controller IP address is meant the IP address of other one or more ubiquitous sensing network controller that can substitute said ubiquitous sensing network controller, and wireless sensing access and multiplexing device number of connection is meant the wireless sensing access and multiplexing device quantity of the current connection of ubiquitous sensing network controller that these can substitute.
According to a third aspect of the invention we, provide the ubiquitous sensing network controller of main usefulness to find the request message definition.The master finds that with ubiquitous sensing network controller institute's loaded information comprises in the request message: find type, wireless sensing access and multiplexing device hardware description unit, wireless sensing access and multiplexing device description unit, wireless sensing access and multiplexing device management mode, wireless senser communication interface type.Wherein, find that type is used to represent that the wireless sensing access and multiplexing device obtains the method that has information of ubiquitous sensing network controller; Wireless sensing access and multiplexing device hardware description unit is used to carry the hardware information of wireless sensing access and multiplexing device; Wireless sensing access and multiplexing device description unit is used to carry wireless sensing access and multiplexing device information; Wireless sensing access and multiplexing device management mode is used to represent the management mode of wireless sensing access and multiplexing device; Wireless senser communication interface type is used to the wireless interface type of communicating by letter with wireless senser of representing that the wireless sensing access and multiplexing device is provided.
The wireless sensing access and multiplexing device sends the master and finds with ubiquitous sensing network controller request message detects the main whether available with ubiquitous sensing network controller of it.When the wireless sensing access and multiplexing device has disposed the ubiquitous sensing network controller of main usefulness; And current it when being connected on the ubiquitous sensing network controller of another one, the wireless sensing access and multiplexing device periodically sends mainly leads whether become upstate with ubiquitous sensing network controller with what ubiquitous sensing network controller found that request message checks it.
According to a forth aspect of the invention, provide the ubiquitous sensing network controller of main usefulness to find the response message definition.The master finds that with ubiquitous sensing network controller institute's loaded information comprises in the response message: the radio sensing network communication interface type that ubiquitous sensing network controller description unit, ubiquitous sensing network controller title, ubiquitous sensing network controller are supported, alternative ubiquitous sensing network controller unit.Wherein: ubiquitous sensing network controller description unit is used to carry ubiquitous sensing network controller descriptor; Ubiquitous sensing network controller title is made up of the character string of the ubiquitous sensing network controller of sign; The radio sensing network communication interface type of ubiquitous sensing network controller support is meant that said ubiquitous sensing network controller can support which radio sensing network communication interface the wireless sensing access and multiplexing device has; Substitute ubiquitous sensing network controller unit and be used to indicate the address and the network connected load information that can substitute main other ubiquitous sensing network controllers with ubiquitous sensing network controller.
Main use ubiquitous sensing network controller find response message be ubiquitous sensing network controller provide a kind of can be to the mechanism of its service ability of wireless sensing access and multiplexing device advertisement that it is configured to main request connection with ubiquitous sensing network controller.
According to a fifth aspect of the invention, the definition of wireless sensing access and multiplexing device hardware description unit is provided.Wireless sensing access and multiplexing device hardware description unit comprises: device fabrication identification of the manufacturer, parameter type, parameter value length, parameter value, optional parameters information.Wherein, the device fabrication identification of the manufacturer is meant the identifier of wireless sensing access and multiplexing device production firm; Parameter type is used to represent the parameter type that carries in the parameter codomain; Parameter value length is represented the length word joint number in parameter value territory; Parameter value is represented the value information of designated parameter type; Optional parameters information is meant the parameter list that other are available, can utilize this territory to carry more parameter information.
According to a sixth aspect of the invention, the definition of wireless sensing access and multiplexing device description unit is provided.Wireless sensing access and multiplexing device description unit comprises: maximum wireless interface quantity, current wireless interface, cryptographic capabilities parameter, device fabrication mfg id, parameter type, parameter value length, parameter value.Wherein: maximum wireless interface quantity is used to represent that the wireless senser communication that the wireless sensing access and multiplexing device is supported connects the maximum number of interface amount; The current wireless interface is used to represent the current wireless senser communication interface quantity of using of wireless sensing access and multiplexing device; The cryptographic capabilities parameter is used to notify ubiquitous sensing network controller whether to have the cryptographic capabilities to data flow transmitted about the wireless sensing access and multiplexing device; The device fabrication mfg id is used to represent the sign of the production firm of wireless sensing access and multiplexing device; Parameter type is used to represent the parameter type that carries in the parameter codomain; Parameter value length is represented the length word joint number in parameter value territory; Parameter value is represented the value information of designated parameter type.
According to a seventh aspect of the invention, ubiquitous sensing network controller description unit definition is provided.Ubiquitous sensing network controller description unit comprises: current wireless sensor node quantity, wireless sensor node restricted number, wireless sensing access and multiplexing device quantity, wireless sensing access and multiplexing device restricted number, safety certificate type, reservation territory, DTLS strategy, device fabrication merchant identifier, parameter type, parameter value length, parameter value.Wherein: current wireless sensor node quantity is meant the present wireless sensor node number of managing of said ubiquitous sensing network controller; The wireless sensor node restricted number is meant the wireless sensor node quantity that said ubiquitous sensing network controller maximum can be managed; Wireless sensing access and multiplexing device quantity is meant the present wireless sensing access and multiplexing device quantity that connects of said ubiquitous sensing network controller; Wireless sensing access and multiplexing device restricted number is meant the wireless sensing access and multiplexing device quantity that said ubiquitous sensing network controller maximum can connect; The safety certificate type is meant the safety certificate mode that ubiquitous sensing network controller is supported; Keep the information field that the territory is meant that expansion will be kept for future; The DTLS strategy is meant whether the transfer of data between ubiquitous sensing network controller and wireless sensing access and multiplexing device uses the DTLS cipher mode; The device fabrication mfg id is used to represent the sign of the production firm of ubiquitous sensing network controller; Parameter type is used to represent the parameter type that carries in the parameter codomain; Parameter value length is represented the length word joint number in parameter value territory; Parameter value is represented the value information of designated parameter type.
According to an eighth aspect of the invention, provide not pre-configured main with ubiquitous sensing network controller situation under, ubiquitous sensing network controller discovery flow process.Wherein, may further comprise the steps:
A) the wireless sensing access and multiplexing device obtains ubiquitous sensing network controller address tabulation;
B) the wireless sensing access and multiplexing device sends ubiquitous sensing network controller and finds the ubiquitous sensing network controller of request message in the ubiquitous sensing network controller address tabulation;
C) ubiquitous sensing network controller sends ubiquitous sensing network controller discovery response message and replys the wireless sensing access and multiplexing device after receiving the discovery request message;
D) if comprise the ubiquitous sensing network controller of a plurality of candidates in the ubiquitous sensing network controller address tabulation, repeating step b then) and c), up to having attempted the ubiquitous sensing network controller of all candidates;
E) the wireless sensing access and multiplexing device has received ubiquitous sensing network controller at all and finds to select best candidate in the ubiquitous sensing network controller of response message, sets up network with it and connects.
According to a ninth aspect of the invention, main discovery flow process with ubiquitous sensing network controller is provided pre-configured under the ubiquitous sensing network controller of the main usefulness situation.Wherein, may further comprise the steps:
A) the wireless sensing access and multiplexing device sends the master and finds that with ubiquitous sensing network controller request message arrives pre-configured master with ubiquitous sensing network controller;
B) ubiquitous sensing network controller receive main find request message with ubiquitous sensing network controller after, send main with ubiquitous sensing network controller discovery response message to said wireless sensing access and multiplexing device.
According to the tenth aspect of the invention; If the wireless sensing access and multiplexing device finds that at above-mentioned ubiquitous sensing network controller flow process or master find not receive the discovery response message from any ubiquitous sensing network controller in the flow process with ubiquitous sensing network controller; Then the wireless sensing access and multiplexing device can't get into the further work state; It need be after waiting one section delay time; Restart ubiquitous sensing network controller and find flow process or main with ubiquitous sensing network controller discovery flow process, till finding available ubiquitous sensing network controller.
Adopt scheme of the present invention, the wireless sensing access and multiplexing device can be found the ubiquitous sensing network controller that can connect automatically, is connected with the network of ubiquitous sensing network controller thereby set up, and adds the radio sensing network that it is controlled.
Description of drawings
Through with reference to the detailed description of being done below the advantages to non-limiting example, 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 system architecture diagram of centralized control formula radio sensing network;
Fig. 2 shows the form sketch map according to the wireless sensing access and multiplexing device hardware description unit of a specific embodiment of the present invention;
Fig. 3 shows the form sketch map according to the wireless sensing access and multiplexing device description unit of a specific embodiment of the present invention;
Fig. 4 shows the form sketch map according to the ubiquitous sensing network controller description unit of a specific embodiment of the present invention;
Fig. 5 shows according to the dereliction of a specific embodiment of the present invention flow chart with the ubiquitous sensing network controller discovery procedure under the ubiquitous sensing network controller configuring condition;
Fig. 6 shows according to the main flow chart with the ubiquitous sensing network controller discovery procedure under the ubiquitous sensing network controller configuring condition of having of a specific embodiment of the present invention.
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 carried out detailed explanation.
Below, first aspect of the present invention is described, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
Ubiquitous sensing network controller finds that institute's loaded information comprises in the request message: find type, wireless sensing access and multiplexing device hardware description unit, wireless sensing access and multiplexing device description unit, wireless sensing access and multiplexing device management mode, wireless senser communication interface type.Wherein:
Find that type is used to represent that the wireless sensing access and multiplexing device obtains the method that has information of ubiquitous sensing network controller, comprising: 1-static configuration, 3-DNS method, 4-election method.Static configuration method is meant that the IP address list of available ubiquitous sensing network controller is pre-configured on the wireless sensing access and multiplexing device; The DNS method refers to that the domain name of ubiquitous sensing network controller is pre-configured on the wireless sensing access and multiplexing device, and the wireless sensing access and multiplexing device obtains the IP address of ubiquitous sensing network controller through the dns resolution process; The election method is meant that the wireless sensing access and multiplexing device is from the alternative ubiquitous sensing network controller IP address from its recommendation of acquisition the discovery response message of ubiquitous sensing network controller.
Wireless sensing access and multiplexing device hardware description unit is used to carry the hardware information of wireless sensing access and multiplexing device.
Wireless sensing access and multiplexing device description unit is used to carry wireless sensing access and multiplexing device information.
Wireless sensing access and multiplexing device management mode is used to represent the management mode of wireless sensing access and multiplexing device, comprising: 1-local management pattern, 2-remote management mode.
Wireless senser communication interface type refers to the wireless interface type of communicating by letter with wireless senser that the wireless sensing access and multiplexing device is provided, as: 802.15.4/Zigbee, Wi-Fi etc.
Ubiquitous sensing network controller finds that request message is used for the ubiquitous sensing network controller of finding that automatically network is available by the wireless sensing access and multiplexing device.The basic capacity that ubiquitous sensing network controller is found to transmit the wireless sensing access and multiplexing device in the request message is to ubiquitous sensing network controller.A wireless sensing access and multiplexing device must provide these information to ubiquitous sensing network controller, with guarantee and the functional characteristics of information exchange that ubiquitous sensing network controller is follow-up and wireless sensing access and multiplexing device consistent.
Below, second aspect of the present invention is described, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
Ubiquitous sensing network controller finds that institute's loaded information comprises in the response message: the radio sensing network communication interface type that ubiquitous sensing network controller description unit, ubiquitous sensing network controller title, ubiquitous sensing network controller are supported, alternative ubiquitous sensing network controller unit.Wherein:
Ubiquitous sensing network controller description unit is used to carry ubiquitous sensing network controller descriptor.
Ubiquitous sensing network controller title is made up of the character string of the ubiquitous sensing network controller of sign.
The radio sensing network communication interface type of ubiquitous sensing network controller support is meant said ubiquitous sensing network controller can support which radio sensing network communication interface the wireless sensing access and multiplexing device has, as: 802.15.4, Wi-Fi etc.
Substituting ubiquitous sensing network controller unit is made up of ubiquitous sensing network controller IP address and the two-part tabulation of wireless sensing access and multiplexing device number of connection.Wherein, Ubiquitous sensing network controller IP address is meant the IP address of another the ubiquitous sensing network controller that can replace, and wireless sensing access and multiplexing device number of connection is meant the wireless sensing access and multiplexing device quantity of the current connection of this ubiquitous sensing network controller.
Ubiquitous sensing network controller finds that response message is the mechanism that ubiquitous sensing network controller provides a kind of its service ability of wireless sensing access and multiplexing device advertisement that can connect to request.
Below, the third aspect of the invention is described, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
The master finds that with ubiquitous sensing network controller institute's loaded information comprises in the request message: find type, wireless sensing access and multiplexing device hardware description unit, wireless sensing access and multiplexing device description unit, wireless sensing access and multiplexing device management mode, wireless senser communication interface type.Wherein:
Find that type is used to represent that the wireless sensing access and multiplexing device obtains the method that has information of ubiquitous sensing network controller, comprising: 1-static configuration, 3-DNS method.Static configuration method is meant main pre-configured on the wireless sensing access and multiplexing device with the IP address of ubiquitous sensing network controller; The DNS method refers to main pre-configured on the wireless sensing access and multiplexing device with the domain name of ubiquitous sensing network controller, and the wireless sensing access and multiplexing device obtains main IP address with ubiquitous sensing network controller through the dns resolution process.
Wireless sensing access and multiplexing device hardware description unit is used to carry the hardware information of wireless sensing access and multiplexing device.
Wireless sensing access and multiplexing device description unit is used to carry wireless sensing access and multiplexing device information.
Wireless sensing access and multiplexing device management mode is used to represent the management mode of wireless sensing access and multiplexing device, comprising: 1-local management pattern, 2-remote management mode.
Wireless senser communication interface type is used to the wireless interface type of communicating by letter with wireless senser of representing that the wireless sensing access and multiplexing device is provided, as: 802.15.4/Zigbee, Wi-Fi etc.
The wireless sensing access and multiplexing device sends the master and finds with ubiquitous sensing network controller request message detects the main whether available with ubiquitous sensing network controller of it.When the wireless sensing access and multiplexing device has disposed the ubiquitous sensing network controller of main usefulness; And current it when being connected on the ubiquitous sensing network controller of another one, the wireless sensing access and multiplexing device sends mainly leads whether become upstate with ubiquitous sensing network controller with what ubiquitous sensing network controller found that request message checks it.
Below, fourth aspect of the present invention is described, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
The master finds that with ubiquitous sensing network controller institute's loaded information comprises in the response message: the radio sensing network communication interface type that ubiquitous sensing network controller description unit, ubiquitous sensing network controller title, ubiquitous sensing network controller are supported, alternative ubiquitous sensing network controller unit.Wherein:
Ubiquitous sensing network controller description unit is used to carry ubiquitous sensing network controller descriptor.
Ubiquitous sensing network controller title is made up of the character string of the ubiquitous sensing network controller of sign.
The radio sensing network communication interface type of ubiquitous sensing network controller support is meant said ubiquitous sensing network controller can support which radio sensing network communication interface the wireless sensing access and multiplexing device has, as: 802.15.4, Wi-Fi etc.
Substituting ubiquitous sensing network controller unit is made up of ubiquitous sensing network controller IP address and the two-part tabulation of wireless sensing access and multiplexing device number of connection.Wherein, Ubiquitous sensing network controller IP address is meant the IP address of another the ubiquitous sensing network controller that can replace said ubiquitous sensing network controller, and wireless sensing access and multiplexing device number of connection is meant the wireless sensing access and multiplexing device quantity of the current connection of this ubiquitous sensing network controller.
Main use ubiquitous sensing network controller find response message be ubiquitous sensing network controller provide a kind of can be to the mechanism of its service ability of wireless sensing access and multiplexing device advertisement that it is configured to main request connection with ubiquitous sensing network controller.
Below, with reference to Fig. 2 the 5th aspect of the present invention is described, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
Wireless sensing access and multiplexing device hardware description unit is used to carry the hardware information of wireless sensing access and multiplexing device, comprising: device fabrication identification of the manufacturer, parameter type, parameter value length, parameter value, optional parameters information.Wherein:
The device fabrication identification of the manufacturer is meant the identifier of wireless sensing access and multiplexing device production firm.
Parameter type comprises following several types: 0-reservation, 1-wireless sensing access and multiplexing device sequence number, 2-hwid, 3-wireless sensing access and multiplexing device MAC Address.
Parameter value length is represented the length word joint number in parameter value territory.
Parameter value is represented the value information of designated parameter type.
Optional parameters information is meant the parameter list that other are available, can utilize this territory to carry more parameter information.
Below, with reference to Fig. 3 the 6th aspect of the present invention is described, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
Wireless sensing access and multiplexing device description unit is used to carry wireless sensing access and multiplexing device information, comprising: maximum wireless interface quantity, current wireless interface, cryptographic capabilities parameter, device fabrication mfg id, parameter type, parameter value length, parameter value.Wherein:
Maximum wireless interface quantity is used to represent that the wireless senser communication that the wireless sensing access and multiplexing device is supported connects the maximum number of interface amount; The wireless sensing access and multiplexing device can be supported single wireless senser communication interface; As: 802.15.4/Zigbee, Wi-Fi etc. also possibly provide several kinds of sensor communication interfaces supports simultaneously.
The current wireless interface is used to represent the current wireless senser communication interface quantity of using of wireless sensing access and multiplexing device, and promptly the wireless sensing access and multiplexing device is current is connected with wireless sensor node with several kinds of communication interfaces.
The cryptographic capabilities parameter is used to notify ubiquitous sensing network controller whether to have the cryptographic capabilities to data flow transmitted about the wireless sensing access and multiplexing device, and 0-does not have cryptographic capabilities; 1-has cryptographic capabilities.
The device fabrication mfg id is used to represent the sign of the production firm of wireless sensing access and multiplexing device.
Parameter type comprises: software version number, 2-wireless sensing access and multiplexing device boot version number, other software version number of 3-of 0-hardware version numbers, 1-operation, as: wireless sensing access and multiplexing device inoperative software version number.
Parameter value length is represented the length word joint number in parameter value territory.
Parameter value is represented the value information of designated parameter type.
Below, with reference to Fig. 4 the 7th aspect of the present invention is described, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
Ubiquitous sensing network controller description unit is used to carry ubiquitous sensing network controller descriptor, comprising: current wireless sensor node quantity, wireless sensor node restricted number, wireless sensing access and multiplexing device quantity, wireless sensing access and multiplexing device restricted number, safety certificate type, reservation territory, DTLS strategy, device fabrication merchant identifier, parameter type, parameter value length, parameter value.Wherein:
Current wireless sensor node quantity is meant the present wireless sensor node number of managing of said ubiquitous sensing network controller.
The wireless sensor node restricted number is meant the wireless sensor node quantity that said ubiquitous sensing network controller maximum can be managed.
Wireless sensing access and multiplexing device quantity is meant the present wireless sensing access and multiplexing device quantity that connects of said ubiquitous sensing network controller.
Wireless sensing access and multiplexing device restricted number is meant the wireless sensing access and multiplexing device quantity that said ubiquitous sensing network controller maximum can connect.
The safety certificate type is meant the safety certificate mode that ubiquitous sensing network controller is supported, wherein 1 representes x.509 certificate mode, and 2 represent shared key mode in advance.
Keep the information field that the territory is meant that expansion will be kept for future.
The DTLS strategy is meant whether the transfer of data between ubiquitous sensing network controller and wireless sensing access and multiplexing device uses the DTLS cipher mode, and wherein 1 representes plaintext transmission, and 2 expressions use DTLS to encrypt.
The device fabrication mfg id is used to represent the sign of the production firm of ubiquitous sensing network controller.
Parameter type is represented the type of the parameter value that the parameter value territory is comprised, the ubiquitous sensing network controller hardware of 4 expressions version number wherein, the ubiquitous sensing network controller software of 5 expressions version number.
Parameter value length is represented the length word joint number in parameter value territory.
Parameter value is represented the value information of designated parameter type.
According to the embodiment of the invention, also provide a kind of not pre-configured main with ubiquitous sensing network controller situation under, the discovery flow process of ubiquitous sensing network controller.Below according to Fig. 5 and combine Fig. 1 to introduce this flow process.This flow process comprises following processing:
Step S10, ubiquitous sensing network controller address obtains.
Step S11, wireless sensing access and multiplexing device send in the ubiquitous sensing network controller address that ubiquitous sensing network controller finds that request message obtained to step S10.
Step S12, ubiquitous sensing network controller send ubiquitous sensing network controller and find that response message is to said wireless sensing access and multiplexing device after receiving ubiquitous sensing network controller discovery request message.
Step S13, if the wireless sensing access and multiplexing device has obtained a plurality of ubiquitous sensing network controller addresses at step S10, then repeating step S11 and step S12 are up to having attempted the ubiquitous sensing network controller address of all candidates.
Step S14, the wireless sensing access and multiplexing device has received ubiquitous sensing network controller at all and has found to select best candidate in the ubiquitous sensing network controller of response message, as its ubiquitous sensing network controller, sets up network with it and connects.
In step S10, to send ubiquitous sensing network controller at the wireless sensing access and multiplexing device and find request message before ubiquitous sensing network controller, it need at first obtain the IP address of ubiquitous sensing network controller.If wireless sensing access and multiplexing device and ubiquitous sensing network controller are positioned at same subnet; The purpose IP address of finding request message can be set to broadcast IP address (255.255.255.255), otherwise the wireless sensing access and multiplexing device need obtain the IP address of ubiquitous sensing network controller in advance.Several kinds of modes that can have the wireless sensing access and multiplexing device obtain the IP address of ubiquitous sensing network controller: static configuration, DNS mode, controller are elected mode.Under the static configuration mode, the IP address of ubiquitous sensing network controller is kept in the nonvolatile storage of wireless sensing access and multiplexing device.Under the DNS mode, dns name claims that " WSN-CCR-Address " can be resolved to one or more ubiquitous sensing network controller addresses.Under controller election mode; Ubiquitous sensing network controller can be found to carry alternative ubiquitous sensing network controller IP address list in the response message at ubiquitous sensing network controller, thereby helps the wireless sensing access and multiplexing device to find more available ubiquitous sensing network controller.
In step S12; The ubiquitous sensing network controller that no matter receives find request message be send with broadcast mode or mode of unicast sends; Ubiquitous sensing network controller one receives ubiquitous sensing network controller and finds request message, and the unicast ip address of all using the wireless sensing access and multiplexing device sends ubiquitous sensing network controller and finds that response message is to the wireless sensing access and multiplexing device.
In step S13, the wireless sensing access and multiplexing device is with repeating step S11 and S12, up to all possible ubiquitous sensing network controller all is finished.Find flow process through this, the wireless sensing access and multiplexing device possibly found one or more candidates' ubiquitous sensing network controller.
In step S14, the wireless sensing access and multiplexing device from a plurality of candidates' ubiquitous sensing network controller, selects an only ubiquitous sensing network controller to connect controller as it through predefined rule, and is established to its connection.When a plurality of available ubiquitous sensing network controller; Then the wireless sensing access and multiplexing device needs to find according to the ubiquitous sensing network controller that receives the next load balancing strategy of between a plurality of available ubiquitous sensing network controllers, carrying out of quantity of the wireless sensing access and multiplexing device that has connected at present in the response message, and selecting at present, the lighter ubiquitous sensing network controller of load carries out the network connection.
According to the embodiment of the invention, also provide a kind of pre-configured under the ubiquitous sensing network controller of the main usefulness situation, main discovery flow process with ubiquitous sensing network controller.Below according to Fig. 6 and combine Fig. 1 to introduce this flow process.This flow process comprises following processing:
Step S20, wireless sensing access and multiplexing device send the master and find that with ubiquitous sensing network controller request message arrives the master with ubiquitous sensing network controller.
Step S21, ubiquitous sensing network controller receive main find request message with ubiquitous sensing network controller after, send main with ubiquitous sensing network controller discovery response message to said wireless sensing access and multiplexing device.
Since the wireless sensing access and multiplexing device pre-configured the ubiquitous sensing network controller of main usefulness, so the wireless sensing access and multiplexing device need not use other modes to obtain available ubiquitous sensing network controller address.If when the wireless sensing access and multiplexing device sending main with ubiquitous sensing network controller discovery request message after; Can in time receive main with ubiquitous sensing network controller discovery response message; Then the wireless sensing access and multiplexing device begins to set up and being connected of said ubiquitous sensing network controller, and no longer carries out discovery procedure with other ubiquitous sensing network controllers.
According to the tenth aspect of the invention; If the wireless sensing access and multiplexing device is found not receive the discovery response message from any ubiquitous sensing network controller in the flow process at ubiquitous sensing network controller; Then the wireless sensing access and multiplexing device can't get into the further work state; It need restart ubiquitous sensing network controller and find flow process, till finding available ubiquitous sensing network controller after wait one section delay time.The delay time that need wait can preestablish.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done is equal to replacement, improves etc., all should be included within protection scope of the present invention.
Claims (10)
1. the discover method of the ubiquitous sensing network controller in the centralized control formula radio sensing network; Thereby help the wireless sensing access and multiplexing device to find ubiquitous sensing network controller available in the network automatically; It is characterized in that the wireless sensing access and multiplexing device can get into the Discovery Status of ubiquitous sensing network controller under two kinds of situation:
A) the wireless sensing access and multiplexing device just powers on or restarts, and when initial work is accomplished, needs to find available ubiquitous sensing network controller, and sets up the network connection with it, to become the part in its radio sensing network topology of being controlled;
When b) the wireless sensing access and multiplexing device connects interruption with the ubiquitous sensing network controller communication that has been connected; The wireless sensing access and multiplexing device need rediscover available ubiquitous sensing network controller; And set up the network connection with it, to become the part in the radio sensing network topology again.
2. the discover method of ubiquitous sensing network controller according to claim 1; The wireless sensing access and multiplexing device not pre-configured main with ubiquitous sensing network controller situation under; Ubiquitous sensing network controller finds that flow process is characterised in that, may further comprise the steps:
A) the wireless sensing access and multiplexing device obtains ubiquitous sensing network controller address tabulation;
B) the wireless sensing access and multiplexing device sends ubiquitous sensing network controller and finds the ubiquitous sensing network controller of request message in the ubiquitous sensing network controller address tabulation;
C) ubiquitous sensing network controller sends ubiquitous sensing network controller discovery response message and replys the wireless sensing access and multiplexing device after receiving the discovery request message;
D) if comprise the ubiquitous sensing network controller of a plurality of candidates in the ubiquitous sensing network controller address tabulation, repeating step b then) and c), up to having attempted the ubiquitous sensing network controller of all candidates;
E) the wireless sensing access and multiplexing device receives in the ubiquitous sensing network controller of finding response message at all and selects best candidate, and sets up the network connection with it.
3. the discover method of ubiquitous sensing network controller according to claim 1; The wireless sensing access and multiplexing device pre-configured under the ubiquitous sensing network controller of the main usefulness situation; Ubiquitous sensing network controller finds that flow process is characterised in that, may further comprise the steps:
A) the wireless sensing access and multiplexing device sends the master and finds that with ubiquitous sensing network controller request message arrives pre-configured master with ubiquitous sensing network controller;
B) ubiquitous sensing network controller receive main find request message with ubiquitous sensing network controller after, send main with ubiquitous sensing network controller discovery response message to said wireless sensing access and multiplexing device.
4. according to the discovery flow process of the described ubiquitous sensing network controller of claim 2-3, its characteristic also is:
If a) the wireless sensing access and multiplexing device does not receive the discovery response message from any ubiquitous sensing network controller in the discovery flow process of ubiquitous sensing network controller; Then the wireless sensing access and multiplexing device can't get into the further work state; It need be after waiting one section delay time; Restart ubiquitous sensing network controller and find flow process, till finding available ubiquitous sensing network controller;
B) disposed the ubiquitous sensing network controller of main usefulness when the wireless sensing access and multiplexing device; And current it when being connected on the ubiquitous sensing network controller of another one, the wireless sensing access and multiplexing device periodically sends mainly leads whether become upstate with ubiquitous sensing network controller with what ubiquitous sensing network controller found that request message checks it.
5. according to the discovery flow process of the described ubiquitous sensing network controller of claim 2-4, ubiquitous sensing network controller finds that request message is characterised in that:
A) ubiquitous sensing network controller finds that institute's loaded information comprises in the request message: find type, wireless sensing access and multiplexing device hardware description unit, wireless sensing access and multiplexing device description unit, wireless sensing access and multiplexing device management mode, wireless senser communication interface type;
B) find that type is used to represent that the wireless sensing access and multiplexing device obtains the method that has information of ubiquitous sensing network controller, wherein, 1 expression static configuration method, 3 expression DNS methods, 4 expression election methods;
C) wireless sensing access and multiplexing device hardware description unit is used to carry the hardware information of wireless sensing access and multiplexing device, and wireless sensing access and multiplexing device hardware description unit is made up of device fabrication identification of the manufacturer, parameter type, parameter value length, parameter value, optional parameters information;
D) the device fabrication identification of the manufacturer is meant the identifier of wireless sensing access and multiplexing device production firm;
E) parameter type is represented the type of the parameter that the parameter value territory is carried, wherein, and 1 expression wireless sensing access and multiplexing device sequence number, 2 expression hwids, 3 expression wireless sensing access and multiplexing device MAC Addresss;
F) parameter value length is represented the length word joint number in parameter value territory;
G) parameter value is represented the value information of designated parameter type;
H) optional parameters information is meant the parameter list that other are available, can utilize this territory to carry more parameter information;
I) wireless sensing access and multiplexing device description unit is used to carry wireless sensing access and multiplexing device information;
J) wireless sensing access and multiplexing device management mode is used to represent the management mode of wireless sensing access and multiplexing device, wherein, and 1 expression local management pattern, 2 expression remote management modes;
K) wireless senser communication interface type refers to the wireless interface type of communicating by letter with wireless senser that the wireless sensing access and multiplexing device is provided;
L) ubiquitous sensing network controller finds that request message is used for the ubiquitous sensing network controller of finding that automatically network is available by the wireless sensing access and multiplexing device; The basic capacity that ubiquitous sensing network controller is found to transmit the wireless sensing access and multiplexing device in the request message is to ubiquitous sensing network controller, with guarantee and the functional characteristics of information exchange that ubiquitous sensing network controller is follow-up and wireless sensing access and multiplexing device consistent.
6. according to the discovery flow process of the described ubiquitous sensing network controller of claim 2-4, ubiquitous sensing network controller finds that response message is characterised in that:
A) ubiquitous sensing network controller finds that institute's loaded information comprises in the response message: the radio sensing network communication interface type that ubiquitous sensing network controller description unit, ubiquitous sensing network controller title, ubiquitous sensing network controller are supported, alternative ubiquitous sensing network controller unit;
B) ubiquitous sensing network controller description unit is used to carry ubiquitous sensing network controller descriptor;
C) ubiquitous sensing network controller title is made up of the character string of the ubiquitous sensing network controller of sign;
D) the radio sensing network communication interface type of ubiquitous sensing network controller support is meant that said ubiquitous sensing network controller can support which radio sensing network communication interface the wireless sensing access and multiplexing device has;
E) substituting ubiquitous sensing network controller unit is made up of ubiquitous sensing network controller IP address and the two-part tabulation of wireless sensing access and multiplexing device number of connection; Ubiquitous sensing network controller IP address is meant the IP address of other ubiquitous sensing network controllers that can substitute said ubiquitous sensing network controller, and wireless sensing access and multiplexing device number of connection is meant the wireless sensing access and multiplexing device quantity of the current connection of ubiquitous sensing network controller that these can substitute.
7. according to the discovery flow process of the described ubiquitous sensing network controller of claim 2-4, the master finds that with ubiquitous sensing network controller request message is characterised in that:
A) master finds that with ubiquitous sensing network controller institute's loaded information comprises in the request message: find type, wireless sensing access and multiplexing device hardware description unit, wireless sensing access and multiplexing device description unit, wireless sensing access and multiplexing device management mode, wireless senser communication interface type;
B) find that type is used to represent that the wireless sensing access and multiplexing device obtains the method that has information of ubiquitous sensing network controller, wherein, 1 expression static configuration method, 3 expression DNS methods;
C) wireless sensing access and multiplexing device hardware description unit is used to carry the hardware information of wireless sensing access and multiplexing device;
D) wireless sensing access and multiplexing device description unit is used to carry wireless sensing access and multiplexing device information;
E) wireless sensing access and multiplexing device management mode is used to represent the management mode of wireless sensing access and multiplexing device, wherein, and 1 expression local management pattern, 2 expression remote management modes;
F) wireless senser communication interface type is used to the wireless interface type of communicating by letter with wireless senser of representing that the wireless sensing access and multiplexing device is provided.
8. according to the discovery flow process of the described ubiquitous sensing network controller of claim 2-4, the master finds that with ubiquitous sensing network controller response message is characterised in that:
A) master finds that with ubiquitous sensing network controller institute's loaded information comprises in the response message: the radio sensing network communication interface type that ubiquitous sensing network controller description unit, ubiquitous sensing network controller title, ubiquitous sensing network controller are supported, alternative ubiquitous sensing network controller unit;
B) ubiquitous sensing network controller description unit is used to carry ubiquitous sensing network controller descriptor;
C) ubiquitous sensing network controller title is made up of the character string of the ubiquitous sensing network controller of sign;
D) the radio sensing network communication interface type of ubiquitous sensing network controller support is meant that said ubiquitous sensing network controller can support which radio sensing network communication interface the wireless sensing access and multiplexing device has;
E) substituting ubiquitous sensing network controller unit is made up of ubiquitous sensing network controller IP address and the two-part tabulation of wireless sensing access and multiplexing device number of connection;
F) ubiquitous sensing network controller IP address is meant the IP address of another the ubiquitous sensing network controller that can replace, and wireless sensing access and multiplexing device number of connection is meant the wireless sensing access and multiplexing device quantity of the current connection of said ubiquitous sensing network controller.
9. according to claim 5 and 7 described message, wireless sensing access and multiplexing device description unit is characterised in that:
A) wireless sensing access and multiplexing device description unit is made up of seven territories such as maximum wireless interface quantity, current wireless interface, cryptographic capabilities parameter, device fabrication mfg id, parameter type, parameter value length, parameter values;
B) maximum wireless interface quantity is used to represent that the wireless senser communication that the wireless sensing access and multiplexing device is supported connects the maximum number of interface amount; The wireless sensing access and multiplexing device can be supported single wireless senser communication interface, also several kinds of sensor communication interfaces supports possibly is provided simultaneously;
C) the current wireless interface is used to represent the current wireless senser communication interface quantity of using of wireless sensing access and multiplexing device, and promptly the wireless sensing access and multiplexing device is current is connected with wireless sensor node with several kinds of communication interfaces;
D) cryptographic capabilities parameter is used to notify ubiquitous sensing network controller whether to have the cryptographic capabilities to data flow transmitted about the wireless sensing access and multiplexing device, the no cryptographic capabilities of 0 expression, and 1 expression has cryptographic capabilities;
E) the device fabrication mfg id is used to represent the sign of the production firm of wireless sensing access and multiplexing device;
F) parameter type is represented the type of the parameter that the parameter value territory is carried, 0 expression hardware version numbers, the software version number of 1 expression operation, 2 expression wireless sensing access and multiplexing device boot version numbers, 3 other software version number of expression;
G) parameter value length is represented the length word joint number in parameter value territory;
H) parameter value is represented the value information of designated parameter type.
10. according to claim 6 and 8 described message, ubiquitous sensing network controller description unit is characterised in that:
A) ubiquitous sensing network controller description unit is made up of subdomains such as current wireless sensor node quantity, wireless sensor node restricted number, wireless sensing access and multiplexing device quantity, wireless sensing access and multiplexing device restricted number, safety certificate type, reservation territory, DTLS strategy, device fabrication merchant identifier, parameter type, parameter value length, parameter values;
B) current wireless sensor node quantity is meant the present wireless sensor node number of managing of said ubiquitous sensing network controller;
C) the wireless sensor node restricted number is meant the wireless sensor node quantity that said ubiquitous sensing network controller maximum can be managed;
D) wireless sensing access and multiplexing device quantity is meant the present wireless sensing access and multiplexing device quantity that connects of said ubiquitous sensing network controller;
E) wireless sensing access and multiplexing device restricted number is meant the wireless sensing access and multiplexing device quantity that said ubiquitous sensing network controller maximum can connect;
F) the safety certificate type is meant the safety certificate mode that ubiquitous sensing network controller is supported;
G) keep the information field that the territory is meant that expansion will be kept for future;
H) the DTLS strategy is meant whether the transfer of data between ubiquitous sensing network controller and wireless sensing access and multiplexing device uses the DTLS cipher mode, and wherein 1 representes plaintext transmission, and 2 expressions use DTLS to encrypt;
I) the device fabrication mfg id is used to represent the sign of the production firm of ubiquitous sensing network controller;
J) parameter type is meant the type of the parameter that the parameter codomain is carried, the ubiquitous sensing network controller hardware of 4 expressions version number wherein, the ubiquitous sensing network controller software of 5 expressions version number;
K) parameter value length is represented the length word joint number in parameter value territory;
L) parameter value is represented the value information of designated parameter type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010623185.3A CN102547927B (en) | 2010-12-22 | 2010-12-22 | Method for discovering ubiquitous sensor network controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010623185.3A CN102547927B (en) | 2010-12-22 | 2010-12-22 | Method for discovering ubiquitous sensor network controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102547927A true CN102547927A (en) | 2012-07-04 |
| CN102547927B CN102547927B (en) | 2015-05-06 |
Family
ID=46353605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010623185.3A Active CN102547927B (en) | 2010-12-22 | 2010-12-22 | Method for discovering ubiquitous sensor network controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102547927B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499948A (en) * | 2013-07-30 | 2014-01-08 | 苏州市计量测试研究所 | Temperature and humidity wireless real-time verification and management system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007038462A2 (en) * | 2005-09-27 | 2007-04-05 | Nortel Networks Limited | Method for dynamic sensor network processing |
| CN101184004A (en) * | 2007-03-16 | 2008-05-21 | 中科院嘉兴中心微系统所分中心 | Double cluster based wireless sensor network distributed topology control method |
-
2010
- 2010-12-22 CN CN201010623185.3A patent/CN102547927B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007038462A2 (en) * | 2005-09-27 | 2007-04-05 | Nortel Networks Limited | Method for dynamic sensor network processing |
| CN101184004A (en) * | 2007-03-16 | 2008-05-21 | 中科院嘉兴中心微系统所分中心 | Double cluster based wireless sensor network distributed topology control method |
Non-Patent Citations (1)
| Title |
|---|
| 邹莉: "《武汉工程大学 硕士学位论文》", 15 February 2008 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499948A (en) * | 2013-07-30 | 2014-01-08 | 苏州市计量测试研究所 | Temperature and humidity wireless real-time verification and management system |
| CN103499948B (en) * | 2013-07-30 | 2016-02-10 | 苏州市计量测试研究所 | The wireless real-time verification management system of a kind of humiture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102547927B (en) | 2015-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11064353B2 (en) | Infrastructure coordinated media access control address assignment | |
| CN108464024B (en) | Network node, wireless device, medium and method for handling wireless device capabilities | |
| CN102594579A (en) | Automatic configuration and network deployment for network devices | |
| CN102137395A (en) | Method, device and system for configuring access device | |
| CN107682857B (en) | Data sharing method of Zigbee network, gateway equipment and Zigbee network system | |
| CN104023375A (en) | Network node discovery method and device | |
| EP3237979B1 (en) | An inter-operable remote terminal unit | |
| EP2506498B1 (en) | Provisioning device, and method of setting network parameter in provisioning network | |
| CN102970770B (en) | Power line based wireless roaming network establishing method and system | |
| WO2014010183A1 (en) | Gateway device, network system, and communication method | |
| CN101562639A (en) | Information synchronization method, device and system | |
| US8819193B2 (en) | Method of setting network, server apparatus using the method, and network system including the server apparatus | |
| US9306921B2 (en) | Method and system for storing and accessing client device information in a distributed set of nodes | |
| EP3202186B1 (en) | Discovery of cloud-based access point controllers | |
| CN102571888A (en) | Method for discovering wireless sensor access multiplexing equipment in centralized control type wireless sensor network | |
| CN102547927A (en) | Method for discovering ubiquitous sensor network controller | |
| KR102216420B1 (en) | Method for handling paging of wireless devices, first network node, computer program and carrier | |
| CN106803846A (en) | For AP shares out the work method, equipment and the system of AC in WLAN | |
| JP2008244945A (en) | Wireless connection environment setting system, wireless connection environment setting server, information terminal, and program | |
| CN103442021A (en) | Network access method of wireless sensor nodes in centralized control type wireless sensor network | |
| CN116389173B (en) | Method, system, medium and equipment for realizing enterprise production network ad hoc network | |
| CN102547811A (en) | Network access method of wireless sensor access multiplexing equipment | |
| CN102547810A (en) | Online debugging method of wireless sensor nodes | |
| KR101534314B1 (en) | Method for Establishing Virtual Local Area Network | |
| JP2010177830A (en) | Automatic network setting system, radio access device, and automatic network setting method used therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |