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在保证一定的覆盖质量前提下,延长传感器网络生存时间,提出一种以充分必要条件判断网络节点冗余性的分布式覆盖控制协议.该协议通过多重交点判别法则(MIER,Multi-Intersection Estimation Rule)对无线传感器网络进行分布式节点的动态休眠控制,从理论上证明了MIER法则是判断网络节点冗余性的充分必要条件,能保证目标区域不出现覆盖盲点同时使活跃节点数降至最低.实验表明,MIER法则比CCP法则有了很大改进,消除由于法则本身引起的盲点数目,能更好的运用于覆盖控制协议中,更为准确的判断节点是否应该工作或休眠,是判别节点是否冗余的充分必要条件;同时比Ottawa法则更加高效的减少整个网络功耗,延长网络寿命.
Under the premise of guaranteeing the quality of coverage, the lifetime of sensor network is prolonged, and a distributed coverage control protocol is proposed to determine the redundancy of network nodes with sufficient and necessary conditions. The protocol is based on Multi-Intersection Estimation Rule (MIER) ) Dynamic dormancy control of distributed nodes in wireless sensor networks theoretically proves that the MIER rule is necessary and sufficient for judging the network node redundancy and can ensure that the target area can not cover the blind spots and minimize the number of active nodes. Experiments show that the MIER rule has been greatly improved than the CCP rule, eliminating the number of blind spots caused by the law itself, can be better used in the coverage control protocol, more accurately determine whether the node should work or sleep, is to determine whether the node is The necessary and sufficient conditions of redundancy; at the same time, it is more efficient than the Ottawa’s law to reduce the power consumption of the entire network and prolong the network lifetime.