Control method for shrouding wireless sensor network using multiplex intersection point shrouding discrimination

Abstract

The invention discloses a covering and controlling method of the wireless sensor network which adopts the covering judgment of multiple intersection points. The method carries out the distributed type node dynamic sleep control on the wireless sensor network via a redundancy judgment rule of the covering degree of the multiple intersection points. At the initial period of the network operation, each node is at the working status and periodically broadcasts the working message to the neighboring node, simultaneously collects the working information of all neighboring nodes; when one node receives the information from the neighboring node, the node carries out the redundancy qualification judgment, and keeps or transforms the status according to the judgment result for realizing the distributed type node dynamic sleep control of the sensor network. The method judges the redundancy of the network node according to the necessary and sufficient condition for avoiding the occurrence of the blind spot of covering, simultaneously enables the number of the active nodes to decrease to the minimum, decreases the power consumption of the system, prolongs the service life of the network, and realizes the coverage-configurable network covering and controlling which has the advantages of completeness, reliability and high efficiency.

Description

technical field [0001] The present invention relates to a wireless sensor network coverage control method, more particularly, refers to a multi-intersection coverage discrimination method to judge redundant nodes in the network, so as to realize the dynamic sleep control of distributed nodes in the wireless sensor network Override control methods. Background technique [0002] A wireless sensor network (Wireless Sensor Network, WSN) is composed of a large number of wireless sensors deployed in the monitoring area, and forms a multi-hop self-organizing network system through wireless communication (see figure 1 shown), its purpose is to cooperatively perceive, collect and process the information of perceived objects in the network coverage area, and send it to users. Each wireless sensor is called a node in the wireless sensor network, and the nodes that can communicate with the node are called the neighbor nodes of the node. Each node generally has two states, one is a wor...

AI Technical Summary

Problems solved by technology

The discriminant rule provided by the CCP protocol screens redundant nodes by judging whether the intersection of adjacent sensing areas is covered by K nodes, but this rule will cause misjudgment and close non-redundant nodes, which will lead to the emergence of coverage blind spots, so it is Necessary but not sufficient condition for redundant nodes

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