Evaluation method for importance of sensor network node

A sensor network and evaluation method technology, which is applied in the field of sensor network node importance evaluation, can solve the problems of uncertain evaluation results, evaluation methods not suitable for sensor networks, and not considering the remaining energy of nodes, so as to achieve the effect of improving invulnerability

Active Publication Date: 2011-09-21
广东智信信息科技股份有限公司
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Problems solved by technology

[0006] (1) The existing node importance evaluation methods do not consider the remaining energy of nodes and other issues, and their evaluation methods are not suitable for s

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  • Evaluation method for importance of sensor network node
  • Evaluation method for importance of sensor network node
  • Evaluation method for importance of sensor network node

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[0039] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0040] Such as figure 1 As shown, the method for evaluating the importance of sensor network nodes of the present invention includes:

[0041] In step S101, the information transmission routing table of the sensor network is established, and the topology structure of the sensor network is determined. Energy limitation is the biggest problem in sensor networks. In order to effectively save node energy and prevent frequent use of the same path to transmit data, which causes excessive energy consumption and premature failure of nodes on the path, a method that can weigh the energy of nodes and the network is needed. The dynamic routing algorithm of topological structure balances the network energy consumed in the p...

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Abstract

The invention discloses an evaluation method for the importance of a sensor network node, and relates to the technical field of wireless sensor network communication. The evaluation method comprises the following steps of: S1, establishing an information transfer routing table of a sensor network, and confirming a topological structure of the sensor network; S2, collecting energy information of all nodes in the sensor network according to the routing table; S3, judging whether a node with exhausted energy exists, and going to step S4 if the node with exhausted energy exists, or calculating the importance of each node according to the topological structure contribution and remaining energy of each node and going to step S2 if the node with exhausted energy does not exist; and S4, calculating operation times of the sensor network as a life cycle of the sensor network. When the evaluation method is adopted, the importance of the sensor network node can be calculated more accurately, and therefore, the destruction resistance of the sensor network can be improved through protecting the importance of the node.

Description

technical field [0001] The invention relates to the technical field of wireless sensor network communication, in particular to a sensor network node importance evaluation method. Background technique [0002] The sensor network is a comprehensive intelligent information system that integrates information collection, information transmission, and information processing. It is a hot spot in the research and development of the current information field. Monitoring, medical monitoring, space exploration, urban traffic management, warehouse management and other military and civilian fields. In the practical application of sensor networks, it is generally necessary to deploy a large number of sensor nodes. Since the nodes often work in harsh environments and usually use batteries with limited energy to provide energy, sensor networks are prone to failure due to energy depletion or being affected by nature. In addition, the purposeful damage to the sensor network will directly or ...

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Application Information

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IPC IPC(8): H04W16/22H04W24/08H04W40/24
Inventor 郑耿忠齐小刚刘秋梅肖驰钟平赵芜野
Owner 广东智信信息科技股份有限公司
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