CN102833881B - Method and device for dynamically maintaining topology of wide-area sensing network - Google Patents
Method and device for dynamically maintaining topology of wide-area sensing network Download PDFInfo
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Abstract
The invention belongs to the field of information and communication technology and particularly relates to a method and device for dynamically maintaining the topology of a wide-area sensing network. To achieve the optimum effect of dynamically allotting the topology of the network in a wide-area sensing network system, a sensing network deployment gateway needs to acquires the real-time change information of the state of the topology of the wide-area sensing network system so as to keep the global view of the latest state of the topology of the wide-area sensing network system, but in the operation process of the network, the sensing communication node and the remote sensing access unit are possible to be disconnected with the network for various reasons so that the state of the topology of the network is affected and the sensing network deployment gateway can not obtain related information. Due to the adoption of the method and the device, the sensing network deployment gateway can be assisted to acquire the real-time change information of the state of the topology of the wide-area sensing network system so as to keep the global view of the latest state of the topology of the wide-area sensing network system.
Description
Technical field
The present invention relates to communication network, particularly relate to a kind of wide area sensing network dynamic topology maintaining method in wide area sensing network system and implement device thereof.
Background technology
In recent years, technology of wireless sensing network obtains and develops fast.But the scale of the radio sensing network disposed at present is general less.Along with the popularization gradually of ubiquitous sensing network business, the construction of extensive sensing network and use will be important trend of next step development of sensing network.
In order to realize sensing network among a small circle, local sensing network is to the transformation of wide area sensing network, a kind of wide area sensing network system towards wide-area deployment is suggested, thus effectively can solve the problem of wide area sensing network in network management, safety, Service control and interoperability etc.
As shown in Figure 1, wide area sensing network system is disposed gateway, sensing network data gateway and multiple sensed communication network domains by sensing network and is formed.Wherein, wide area sensing network system comprises multiple sensed communication network domains that can interconnect, thus builds the sensing network covered on a large scale.Each sensed communication network domains passes through layering networking mode, the maximum local sensing network can set up more than 100,000 sensor nodes.For so large-scale wide area sensing network, if carry out maintenance management network topology by the mode of static configuration, then need the information such as address for each network node static configuration upper level networking equipment wherein, this brings great difficulty to the operation and maintenance work of wide area sensing network system, and the Sensor Network that cannot be applicable to based on movable sensor is applied.For this reason, sensing network is disposed gateway and is suggested, and the dynamic topology being responsible for realizing wide area sensing network distributes.It can come for sense communication node and distal sensor access unit dynamic assignment higher level networking equipment according to business configuration rule and network load.
In order to reach the optimum efficiency of network topology dynamic assignment, sensing network disposes the real-time change information that gateway needs the topology status obtaining wide area sensing network system, thus keeps the global view to the up-to-date topology status of wide area sensing network system.But in network operation process, sense communication node and distal sensor access unit all may be connected because a variety of causes disconnects network, thus network topology state is had an impact, and sensing network deployment gateway cannot know related news, therefore cannot its wide area sensor network topology topology view safeguarded of real time modifying.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, filling up technological gap, the present invention is directed to the wide area sensing network system shown in Fig. 1, propose a kind of wide area sensing network dynamic topology maintaining method and implement device thereof.
According to a first aspect of the invention, provide a kind of wide area sensing network dynamic topology maintaining method, it is characterized in that:
A) sensed communication network domains dynamic topology more New Deal be used for disposing to sensing network the network insertion state change information that gateway upgrades sense communication node and distal sensor access unit;
B) sensed communication network domains dynamic topology more New Deal run on sensing network and dispose between gateway and sensing network communication controler;
C) after the network insertion state change information of sensing network communication controler Dynamic Acquisition sense communication node and distal sensor access unit, by sensed communication network domains dynamic topology more New Deal report described information to dispose gateway to sensing network;
D) sensing network disposes the network insertion state change information of gateway according to the sense communication node received and distal sensor access unit, revises wide area sensor network topology topology view.
According to a second aspect of the invention, a kind of wide area sensing network dynamic topology management devices is provided.It runs on sensing network and disposes on gateway device, for safeguarding the dynamic topology in wide area sensing network system.Wide area sensing network dynamic topology management devices comprises: the first acquisition device, the first dispensing device, protocol processes device, network topology management device.Wherein: the first acquisition device is for receiving the information from sensing network communication controler; First dispensing device is used for sending information to sensing network communication controler; Protocol processes device is used for realizing wide area sensing network dynamic topology more New Deal; Network topology management device is responsible for the network dynamic topology safeguarding wide area Sensor Network.
According to a third aspect of the invention we, a kind of sensed communication network domains dynamic topology management devices is provided.It runs on sensing network communication controler equipment, for the dynamic topology in updating maintenance sensed communication network domains.Sensed communication network domains dynamic topology management devices comprises: the first acquisition device, the first dispensing device, protocol processes device, network topology management device.Wherein: the first acquisition device disposes the information of gateway from sensing network for receiving; First dispensing device is used for sending information to sensing network and disposes gateway; Protocol processes device is used for realizing wide area sensing network dynamic topology more New Deal; Network topology management device is responsible for safeguarding the network dynamic topology in sensed communication network domains.
According to a forth aspect of the invention, propose a kind of sensed communication network domains dynamic topology more New Deal, it runs on sensing network and disposes between wide area sensing network dynamic topology management devices in gateway and the sensed communication network domains dynamic topology management devices in sensing network communication controler, is responsible for the two-way interactive of carrying sensed communication network domains dynamic topology change information.Sensed communication network domains dynamic topology upgrades protocol package containing two message: sensed communication network domains dynamic topology update notification message and sensed communication network domains dynamic topology upgrade response message.Sensed communication network domains dynamic topology update notification message by the sensed communication network domains dynamic topology management devices in sensing network communication controler for notifying that sensing network disposes the change of the wide area sensing network dynamic topology management devices in gateway about dynamic topology in sensed communication network domains.Sensed communication network domains dynamic topology upgrades response message and is used to response sensed communication network domains dynamic topology update notification message, confirms the correct reception to sensed communication network domains dynamic topology update notification message.
According to a fifth aspect of the invention, a kind of sensed communication network domains dynamic topology update notification message is provided.Sensed communication network domains dynamic topology update notification message to be disposed wide area sensing network dynamic topology management devices in gateway by the sensed communication network domains dynamic topology management devices in sensing network communication controler for sending change in topology information in sensed communication network domains to sensing network.The information carried in sensed communication network domains dynamic topology update notification message comprises: number of nodes, node state table.Wherein, number of nodes represents the number of nodes carried in node state table; Node state table comprises the nodal information that network insertion state variation occurs in sensed communication network domains, and it comprises: three subdomains such as node type, node identification, node state.Wherein, node type comprises sense communication node and distal sensor access unit two type; Node identification represents the identification number of described network node; Node state refers to the network insertion state of described node, comprises access and leaves two states.
According to a sixth aspect of the invention, provide a kind of sensed communication network domains dynamic topology and upgrade response message.The sensing network wide area sensing network dynamic topology management devices sensed communication network domains dynamic topology disposed in gateway upgrades the transmit leg that response message replys sensed communication network domains dynamic topology update notification message, confirms the correct reception to sensed communication network domains dynamic topology update notification message.The message body that sensed communication network domains dynamic topology upgrades response message is empty.
According to a seventh aspect of the invention, the handling process of the wide area sensing network dynamic topology renewal process that sense communication node network insertion state variation causes is provided.Wherein, comprise the following steps:
A) the sensed communication network domains dynamic topology management devices in sensing network communication controler obtains sense communication node network insertion state change information;
B) the sensed communication network domains dynamic topology management devices in sensed communication network controller generates sensed communication network domains dynamic topology update notification message, carries the sense communication node information that network insertion state variation occurs in message;
C) the sensed communication network domains dynamic topology management devices in sensed communication network controller sends sensed communication network domains dynamic topology update notification message to the wide area sensing network dynamic topology management devices in sensing network deployment gateway;
D) the sensing network wide area sensing network dynamic topology management devices disposed in gateway sends sensed communication network domains dynamic topology renewal response message to the sensed communication network domains dynamic topology management devices in sensed communication network controller;
E) the sensing network wide area sensing network dynamic topology management devices disposed in gateway upgrades wide area sensor network topology topology view.
According to an eighth aspect of the invention, the flow process of the wide area sensing network dynamic topology renewal process that distal sensor access unit network insertion state variation causes is provided.Wherein, comprise the following steps:
A) the sensed communication network domains dynamic topology management devices in sensed communication network controller obtains the network insertion state change information of distal sensor access unit;
B) the sensed communication network domains dynamic topology management devices in sensed communication network controller generates sensed communication network domains dynamic topology update notification message, carries the distal sensor access unit information that network insertion state variation occurs in message;
C) the sensed communication network domains dynamic topology management devices in sensed communication network controller sends sensed communication network domains dynamic topology update notification message to the wide area sensing network dynamic topology management devices in sensing network deployment gateway;
D) the sensing network wide area sensing network dynamic topology management devices disposed in gateway sends sensed communication network domains dynamic topology renewal response message to the sensed communication network domains dynamic topology management devices in sensed communication network controller;
E) the sensing network wide area sensing network dynamic topology management devices disposed in gateway upgrades wide area sensor network topology topology view.
Adopt the solution of the present invention, sensing network disposes the real-time change information that gateway can obtain the topology status of wide area sensing network system, thus keeps the global view to the up-to-date topology status of wide area sensing network system.
Accompanying drawing explanation
Read the following detailed description to non-limiting example by referring to accompanying drawing, other features, objects and advantages of the present invention will become more obvious.Schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the system architecture diagram of the wide area sensing network system towards wide-area deployment;
Fig. 2 shows the block diagram of the wide area sensing network dynamic topology management devices according to a specific embodiment of the present invention;
Fig. 3 shows the block diagram of the sensed communication network domains dynamic topology management devices according to a specific embodiment of the present invention;
Fig. 4 shows the flow chart of the wide area sensing network dynamic topology renewal process caused according to the sense communication node network insertion state variation of a specific embodiment of the present invention;
Fig. 5 shows the flow chart of the wide area sensing network dynamic topology renewal process caused according to the distal sensor access unit network insertion state variation of a specific embodiment of the present invention.
Wherein, same or analogous Reference numeral represents same or analogous steps characteristic or device/module.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
As shown in Figure 1, multiple sensed communication network domains can be comprised in the wide area sensing network system of wide-area deployment.Each sensed communication network domains is made up of sensing network communication controler, distal sensor access unit, sense communication node, sensor device and equipment.Wherein, sensing network communication controler is the core control equipment of a sensed communication network domains, and it is in charge of and controls all networking node devices in sensed communication network domains, as: distal sensor access unit, sense communication node, transducer etc.Distal sensor access unit is under the control of sensing network communication controler, for sense communication node and transducer provide network access facility, as: distal sensor access unit 1 for sense communication node such as sense communication node 1 grade provides the network access facility being linked into wide area sensing network system.Sensing network communication controler is the core control equipment of whole sensed communication network domains, be responsible for carrying out control and management to all distal sensor access units in network, and pass through and distal sensor access unit layering networking, realize the establishment of the larger sensed communication network domains of coverage.
From networking structure, sense communication node becomes a member in wide area sensing network system by being linked into distal sensor access unit, and distal sensor access unit becomes a member in wide area sensing network system by being linked into sensing network communication controler.Sensing network is disposed gateway apparatus and is used to as sense communication node and distal sensor access unit provide the information such as the address of upper level networking equipment.
In order to reach the optimum efficiency of network topology dynamic assignment, sensing network disposes the real-time change information that gateway needs the topology status obtaining wide area sensing network system, thus keeps the global view to the up-to-date topology status of wide area sensing network system.But in network operation process, sense communication node and distal sensor access unit all may be connected because a variety of causes disconnects network, thus network topology state is had an impact, and sensing network deployment gateway cannot know related news, therefore cannot its wide area sensor network topology topology view safeguarded of real time modifying.
In order to the information that can cause network topology change all in Real-time Obtaining wide area sensing network, sensed communication network domains dynamic topology more New Deal is suggested.Sensed communication network domains dynamic topology more New Deal runs between sensing network deployment gateway and sensing network communication controler, is responsible for disposing to sensing network the network insertion state change information that gateway upgrades sense communication node and distal sensor access unit.
As the core control equipment of sensed communication network domains, sensing network communication controler can the network insertion state change information of all-network node in its sensed communication network domains controlled of Real-time Obtaining.Sensing network communication controler is after the network insertion state change information obtaining sense communication node and distal sensor access unit, by sensed communication network domains dynamic topology more New Deal be reported to sensing network dispose gateway, sensing network disposes the network insertion state change information of gateway according to the sense communication node received and distal sensor access unit, revises wide area sensor network topology topology view.
Fig. 2 shows the wide area sensing network dynamic topology management devices according to a specific embodiment of the present invention, and it runs on sensing network and disposes on gateway device, for safeguarding the dynamic topological structure in wide area sensing network system.Wide area sensing network dynamic topology management devices comprises: the first acquisition device 101, first dispensing device 102, protocol processes device 103, network topology management device 104.Wherein:
First acquisition device 101, for receiving the information from sensing network communication controler, as: sensed communication network domains dynamic topology update notification message.The information received is handed to protocol processes device 103 and is processed by the first acquisition device 101.
First dispensing device 102, for sending information to sensing network communication controler.Protocol processes device 103 is after receiving the sensed communication network domains dynamic topology update notification message from sensing network communication controler, sensed communication network domains dynamic topology can be generated and upgrade response message, and sensed communication network domains dynamic topology renewal response message is passed to the first dispensing device 102, send to described sensing network communication controler by the first dispensing device 102.
Protocol processes device 103, for realizing wide area sensing network dynamic topology more New Deal.Protocol processes device 103, after receiving sensed communication network domains dynamic topology update notification message, can be analyzed it, and the topological structure view in informing network topology management device 104 pairs of wide area sensing networks is revised accordingly.Meanwhile, protocol processes device 103 is responsible for generating sensed communication network domains dynamic topology and is upgraded response message, and is sent to the sensing network communication controler transmitting sensed communication network domains dynamic topology update notification message by the first dispensing device 102.
Network topology management device 104, is responsible for the network dynamic topology view safeguarding wide area Sensor Network.Network topology management device 104 notifies according to the network topology change of protocol processes device 103, the network dynamic topology view of the wide area Sensor Network that it is safeguarded is revised accordingly, ensures that the network dynamic topology view of wide area Sensor Network is consistent with the real network topology status of wide area sensing network.
Fig. 3 shows the sensed communication network domains dynamic topology management devices according to a specific embodiment of the present invention, and it runs on sensing network communication controler equipment, for the dynamic topological structure in updating maintenance sensed communication network domains.Sensed communication network domains dynamic topology management devices comprises: the first acquisition device 201, first dispensing device 202, protocol processes device 203, network topology management device 204.Wherein:
First acquisition device 201, for receiving the information of disposing gateway from sensing network, as: sensed communication network domains dynamic topology upgrades response message.The information received is handed to protocol processes device 203 and is processed by the first acquisition device 201.
First dispensing device 202, disposes gateway for sending information to sensing network.Protocol processes device 203 is after the change obtaining sensed communication network domains dynamic topology, sensed communication network domains dynamic topology update notification message can be generated, and sensed communication network domains dynamic topology update notification message is passed to the first dispensing device 202, send to sensing network to dispose gateway by the first dispensing device 202.
Protocol processes device 203, for realizing wide area sensing network dynamic topology more New Deal.When after the sensed communication network domains change in topology information that protocol processes device 203 receives from network topology management device 204, it can generate wide area sensing network dynamic topology updating message, and sends to sensing network to dispose gateway by the first dispensing device 202.The sensed communication network domains dynamic topology that await receipt disposes gateway from sensing network simultaneously upgrades response message, to guarantee that wide area sensing network dynamic topology updating message is disposed gateway by sensing network and correctly received, otherwise wide area sensing network dynamic topology updating message will be resend.
Network topology management device 204, is responsible for safeguarding the network dynamic topology in sensed communication network domains.When the sensed communication network domains topology that sensing network communication controler controls changes, other device in sensing network communication controler or module meeting informing network topology management device 204, network topology management device 204 revises the network dynamic topology topology view in its sensed communication network domains safeguarded according to relevant information.Meanwhile, the network topology change message in sensed communication network domains also can be submitted to protocol processes device 203 by network topology management device 204.
Below, be described a fourth aspect of the present invention, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
Sensed communication network domains dynamic topology more New Deal runs on sensing network and disposes between wide area sensing network dynamic topology management devices in gateway and the sensed communication network domains dynamic topology management devices in sensing network communication controler, is responsible for the two-way interactive of the dynamic topology change information in carrying sensed communication network domains.Sensed communication network domains dynamic topology upgrades protocol package containing two message: sensed communication network domains dynamic topology update notification message and sensed communication network domains dynamic topology upgrade response message.Sensed communication network domains dynamic topology update notification message by the sensed communication network domains dynamic topology management devices in sensing network communication controler for notifying that sensing network disposes the change of the wide area sensing network dynamic topology management devices in gateway about dynamic topology in sensed communication network domains, as: certain sense communication node access network or leave network, certain distal sensor access unit access network or leave network.Sensed communication network domains dynamic topology upgrades response message and is used to response sensed communication network domains dynamic topology update notification message, in order to notify that the transmit leg of sensed communication network domains dynamic topology update notification message successfully receives the message of its transmission.
Below, be described a fifth aspect of the present invention, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
Sensed communication network domains dynamic topology update notification message to be disposed wide area sensing network dynamic topology management devices in gateway by the sensed communication network domains dynamic topology management devices in sensing network communication controler for sending change in topology information in sensed communication network domains to sensing network.The information carried in sensed communication network domains dynamic topology update notification message comprises: number of nodes, node state table.Wherein:
Number of nodes represents the number of nodes carried in node state table.
Node state table represents the nodal information that network insertion state variation occurs in sensed communication network domains, and it comprises: three subdomains such as node type, node identification, node state.
Node type comprises sense communication node and distal sensor access unit two class.
Node identification represents the identification number of described network node, i.e. sense communication node and the internal indicator number of distal sensor access unit in wide area sensing network system.
Node state comprises access and leaves two states, represents the network connection state of sense communication node or distal sensor access unit.
Such as 1: the sense communication node 1 in sensed communication network domains 1 is accomplished to the network insertion process of distal sensor access unit 1, after sensing network communication controler 1 obtains this information, sensed communication network domains dynamic topology management devices in sensing network communication controler 1 can generate a sensed communication network domains dynamic topology update notification message, number of nodes in message is 1, node type is sense communication node, node identification is the network internal mark of sense communication node 1, and node state is " access ".
Such as 2: the network that the sensing network communication controler 1 in sensed communication network domains 1 is found to distal sensor access unit 1 connects disconnection, sensed communication network domains dynamic topology management devices then in sensing network communication controler 1 can generate a sensed communication network domains dynamic topology update notification message, number of nodes in message is 1, node type is distal sensor access unit, node identification is the network internal mark of distal sensor access unit 1, and node state is " leaving ".
Below, be described a sixth aspect of the present invention, wherein, Fig. 1 and associated description thereof are incorporated herein by reference.
The sensing network wide area sensing network dynamic topology management devices sensed communication network domains dynamic topology disposed in gateway upgrades response message and replys the sensed communication network domains dynamic topology update notification message received.The message body that sensed communication network domains dynamic topology upgrades response message is empty.
Such as: after the sensed communication network domains dynamic topology management devices in sensing network communication controler 1 sends a sensed communication network domains dynamic topology update notification message to the wide area sensing network dynamic topology management devices in sensing network deployment gateway, the sensing network wide area sensing network dynamic topology management devices disposed in gateway sends sensed communication network domains dynamic topology and upgrades response message to the sensed communication network domains dynamic topology management devices in sensing network communication controler 1, represent and confirm that sensed communication network domains dynamic topology update notification message correctly receives.If do not receive sensed communication network domains dynamic topology in the certain hour of the sensed communication network domains dynamic topology management devices in sensing network communication controler 1 after sending sensed communication network domains dynamic topology update notification message to upgrade response message, it sends a upper sensed communication network domains dynamic topology update notification message to the wide area sensing network dynamic topology management devices in sensing network deployment gateway by repeating.
According to the embodiment of the present invention, additionally provide the handling process of the wide area sensing network dynamic topology renewal process that a kind of sense communication node network insertion state variation causes.Below according to Fig. 4 and composition graphs 1 introduces this flow process.Described flow process comprises following treatment step:
Step S10, the sensed communication network domains dynamic topology management devices in sensing network communication controler 1 knows that sense communication node 1 is linked in sensed communication network domains 1.
Step S11, the sensed communication network domains dynamic topology management devices in sensed communication network controller 1 generates sensed communication network domains dynamic topology update notification message, carries the information of the sense communication node 1 that network insertion state variation occurs in message.
Step S12, the sensed communication network domains dynamic topology management devices in sensed communication network controller 1 sends sensed communication network domains dynamic topology update notification message to the wide area sensing network dynamic topology management devices in sensing network deployment gateway.
Step S13, the sensing network wide area sensing network dynamic topology management devices disposed in gateway sends sensed communication network domains dynamic topology and upgrades response message to the sensed communication network domains dynamic topology management devices in sensed communication network controller 1.
Step S14, the sensing network wide area sensing network dynamic topology management devices disposed in gateway upgrades wide area sensor network topology structure, is joined by sense communication node 1 in wide area sensing network Global Topological view.
According to the embodiment of the present invention, additionally provide the flow process of the wide area sensing network dynamic topology renewal process that a kind of distal sensor access unit network insertion state variation causes.Below according to Fig. 5 and composition graphs 1 introduces this flow process.This flow process comprises following process:
Step S10, the sensed communication network domains dynamic topology management devices in sensed communication network controller 1 obtains distal sensor access unit network insertion state change information, as: distal sensor access unit 1 leaves sensed communication network domains 1.
Step S11, the sensed communication network domains dynamic topology management devices in sensed communication network controller 1 generates sensed communication network domains dynamic topology update notification message, carries the information of the distal sensor access unit 1 that network insertion state variation occurs in message.
Step S12, the sensed communication network domains dynamic topology management devices in sensed communication network controller 1 sends sensed communication network domains dynamic topology update notification message to the wide area sensing network dynamic topology management devices in sensing network deployment gateway.
Step S13, the sensing network wide area sensing network dynamic topology management devices disposed in gateway sends sensed communication network domains dynamic topology and upgrades response message to the sensed communication network domains dynamic topology management devices in sensed communication network controller 1.
Step S14, the wide area sensing network dynamic topology management devices in sensing network deployment gateway is according to the information updating wide area sensor network topology topology view in the sensed communication network domains dynamic topology update notification message received.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improves, all should be included within protection scope of the present invention.
Claims (9)
1. a wide area sensing network dynamic topology maintaining method, is characterized in that:
A) sensed communication network domains dynamic topology more New Deal be used for disposing to sensing network the network insertion state change information that gateway upgrades sense communication node and distal sensor access unit;
B) sensed communication network domains dynamic topology more New Deal run on sensing network and dispose between gateway and sensing network communication controler;
C) after sensing network communication controler obtains the network insertion state change information of sense communication node and distal sensor access unit, by sensed communication network domains dynamic topology more New Deal be reported to sensing network to dispose gateway;
D) sensing network disposes the network insertion state change information of gateway according to the sense communication node received and distal sensor access unit, revises wide area sensor network topology topology view;
Described sensed communication network domains dynamic topology more New Deal runs on sensing network and disposes between wide area sensing network dynamic topology management devices in gateway and the sensed communication network domains dynamic topology management devices in sensing network communication controler, is responsible for the two-way interactive of the dynamic topology change information in carrying sensed communication network domains; Described sensed communication network domains dynamic topology upgrades protocol package containing two control messages: sensed communication network domains dynamic topology update notification message and sensed communication network domains dynamic topology upgrade response message; Sensed communication network domains dynamic topology update notification message by sensing network communication controler for notifying that sensing network disposes gateway about the change of dynamic topology in sensed communication network domains; Sensed communication network domains dynamic topology upgrades response message and is used to response sensed communication network domains dynamic topology update notification message.
2. wide area sensing network dynamic topology maintaining method according to claim 1, is characterized in that, the feature of described sensed communication network domains dynamic topology update notification message is:
A) sensed communication network domains dynamic topology update notification message to be disposed wide area sensing network dynamic topology management devices in gateway by the sensed communication network domains dynamic topology management devices in sensing network communication controler for sending change in topology information in sensed communication network domains to sensing network;
B) information carried in sensed communication network domains dynamic topology update notification message comprises: number of nodes, node state table;
C) number of nodes represents the number of nodes carried in node state table;
D) node state table comprises the nodal information that network insertion state variation occurs in sensed communication network domains, and it comprises: three subdomains such as node type, node identification, node state;
E) node type comprises sense communication node and distal sensor access unit two type;
F) node identification represents the identification number of described network node;
G) node state refers to the network insertion state of described node, comprises access and leaves two states.
3. wide area sensing network dynamic topology maintaining method according to claim 1, is characterized in that, the feature that described sensed communication network domains dynamic topology upgrades response message is:
A) the sensing network wide area sensing network dynamic topology management devices sensed communication network domains dynamic topology disposed in gateway upgrades the transmit leg that response message replys sensed communication network domains dynamic topology update notification message, confirms the successful reception to sensed communication network domains dynamic topology update notification message;
B) sensed communication network domains dynamic topology upgrades the message body of response message is empty.
4. wide area sensing network dynamic topology maintaining method according to claim 1, is characterized in that, the wide area sensing network dynamic topology renewal process that sense communication node network insertion state variation causes comprises following steps:
A) the sensed communication network domains dynamic topology management devices in sensing network communication controler obtains sense communication node network insertion state change information;
B) the sensed communication network domains dynamic topology management devices in sensed communication network controller generates sensed communication network domains dynamic topology update notification message, carries the sense communication node information that network insertion state variation occurs in message;
C) the sensed communication network domains dynamic topology management devices in sensed communication network controller sends sensed communication network domains dynamic topology update notification message to the wide area sensing network dynamic topology management devices in sensing network deployment gateway;
D) the sensing network wide area sensing network dynamic topology management devices disposed in gateway sends sensed communication network domains dynamic topology renewal response message to the sensed communication network domains dynamic topology management devices in sensed communication network controller;
E) the sensing network wide area sensing network dynamic topology management devices disposed in gateway upgrades wide area sensor network topology topology view.
5. wide area sensing network dynamic topology maintaining method according to claim 1, is characterized in that, the wide area sensing network dynamic topology renewal process that distal sensor access unit network insertion state variation causes comprises following steps:
A) the sensed communication network domains dynamic topology management devices in sensed communication network controller obtains distal sensor access unit network insertion state change information;
B) the sensed communication network domains dynamic topology management devices in sensed communication network controller generates sensed communication network domains dynamic topology update notification message, carries the distal sensor access unit information that network insertion state variation occurs in message;
C) the sensed communication network domains dynamic topology management devices in sensed communication network controller sends sensed communication network domains dynamic topology update notification message to the wide area sensing network dynamic topology management devices in sensing network deployment gateway;
D) the sensing network wide area sensing network dynamic topology management devices disposed in gateway sends sensed communication network domains dynamic topology renewal response message to the sensed communication network domains dynamic topology management devices in sensed communication network controller;
E) the sensing network wide area sensing network dynamic topology management devices disposed in gateway upgrades wide area sensor network topology topology view.
6. a wide area sensing network dynamic topology management devices, is characterized in that:
A) wide area sensing network dynamic topology management devices runs on sensing network deployment gateway device, for safeguarding the dynamic topology in wide area sensing network system;
B) wide area sensing network dynamic topology management devices comprises: the first acquisition device, the first dispensing device, protocol processes device, network topology management device;
C) the first acquisition device is for receiving the information from sensing network communication controler;
D) the first dispensing device is used for sending information to sensing network communication controler;
E) protocol processes device is for realizing sensed communication network domains dynamic topology as claimed in claim 1 more New Deal;
F) network topology management device is responsible for the network dynamic topology safeguarding wide area Sensor Network.
7. a sensed communication network domains dynamic topology management devices, is characterized in that:
A) sensed communication network domains dynamic topology management devices runs on sensing network communication controler equipment, for the dynamic topology in updating maintenance sensed communication network domains;
B) sensed communication network domains dynamic topology management devices comprises: the first acquisition device, the first dispensing device, protocol processes device, network topology management device;
C) the first acquisition device is for receiving the information of disposing gateway from sensing network;
D) the first dispensing device is used for sending information to sensing network deployment gateway;
E) protocol processes device is for realizing sensed communication network domains dynamic topology as claimed in claim 1 more New Deal;
F) network topology management device is responsible for safeguarding the network dynamic topology in sensed communication network domains.
8. the network equipment in wide area sensing network, is characterized in that, comprises wide area sensing network dynamic topology management devices according to claim 6.
9. the network equipment in wide area sensing network, is characterized in that, comprises sensed communication network domains dynamic topology management devices according to claim 7.
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| WO2005060164A2 (en) * | 2003-12-19 | 2005-06-30 | Sony Deutschland Gmbh | Wireless communication network architecture |
| CN101764857A (en) * | 2009-12-22 | 2010-06-30 | 王晓喃 | Realization method for mobile handover of next generation of IP full wireless sensor network |
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