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Method and system for implementing network topology structure of wireless sensor

A network topology, wireless sensor technology, applied in network topology, wireless communication, electrical components, etc., can solve the problem of low real-time performance of wireless sensor network topology, and achieve the effect of improving real-time performance

Active Publication Date: 2012-04-04
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a method and system for realizing a wireless sensor network topology structure to solve the problem of low real-time performance in generating a wireless sensor network topology structure in the prior art

Method used

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  • Method and system for implementing network topology structure of wireless sensor
  • Method and system for implementing network topology structure of wireless sensor
  • Method and system for implementing network topology structure of wireless sensor

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Embodiment 1

[0045] The embodiment of the present invention provides a method for implementing a wireless sensor network topology structure for a tree network, so as to solve the problem in the prior art that the real-time performance of generating a wireless sensor network topology structure is not high, such as figure 1 Shown is the flow chart of this method, and this method comprises the following steps:

[0046] Step 101: Obtain the physical address of the parent node and the physical address of the child node.

[0047] Step 102: Decoding the physical address of the parent node and the physical address of the child node respectively to obtain the address number of the parent node and the address number of the child node.

[0048] Specifically, if a node's data frame format is such as figure 2 As shown, including frame header, identification code, child node address, parent node address, signal strength and frame tail, etc. In the host computer monitoring software, set an unsigned ch...

Embodiment 2

[0059] In another embodiment of the present invention, the method comprises the steps of:

[0060] Step 301: Obtain the physical address of the parent node and the physical address of the child node.

[0061] Step 302: Decoding the physical address of the parent node and the physical address of the child node respectively to obtain the address number of the parent node and the address number of the child node;

[0062] In the present invention, the numerical address number is used to send and transmit the physical address. Since the sending and receiving time required for the numerical address number is far lower than the sending and receiving time of the character-type physical address, the technical solution of the present invention The real-time performance of generating the wireless sensor network topology can be greatly improved.

[0063] Step 303: Obtain the link relationship between the child node and the parent node according to the address number of the parent node a...

Embodiment 3

[0073] Embodiments of the present invention also provide a system for implementing a wireless sensor network topology, such as Image 6 As shown, the system includes:

[0074] The first obtaining unit 601 is configured to obtain the physical address of the parent node and the physical address of the child node.

[0075] Specifically, whenever a child node joins or disconnects from the topological network, the first obtaining unit 601 will immediately obtain a data stream sent by the parent node corresponding to the child node, the data stream includes the physical address of the child node and the parent node physical address.

[0076] The processing unit 602 is used to decode the physical address of the parent node and the physical address of the child node to obtain the address number of the parent node and the address number of the child node, and convert the address number of the parent node and the address number of the child node into Boolean two Dimensional array repr...

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Abstract

The invention discloses a method and system for implementing the network topology structure of a wireless sensor. The method comprises the steps as follows: acquiring the physical address of a father node and that of a child node; decoding the physical address of the father node and that of the child node to obtain the address number of the father node and that of the child node; periodically acquiring a flag code of the child node according to the address number of the father node and that of the child node; and refreshing the network topology structure of the wireless sensor according to the flag code of the child node. A physical address is sent and transmitted through a numeric type address number of which the sending and receiving time is far shorter than that of a character type physical address, so that the real-time performance in generating of the network topology structure of the wireless sensor is improved greatly.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a method and system for realizing a wireless sensor network topology. Background technique [0002] The wireless sensor network topology includes three major hardware elements: gateways, routing nodes, and terminal nodes. Among them, the gateway performs data transmission and exchange with the server monitoring terminal through serial port communication; the routing node can be used as the child node of the gateway and other routing nodes, and can also be the parent node of the terminal node; the terminal node is the lowest child node, responsible for reporting Various sensor information collected by the sensor. [0003] At present, there are two main ways to generate the topology structure of wireless sensor networks: one is the top-down query response mechanism of the monitoring system server. This method generally has high accuracy, but when the number of nod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/18
Inventor 刘小龙陈岚李莹龚关飞俞雪婷
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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