摘要： 针对视觉传感器网络目标覆盖过程中因覆盖冗余、节点剩余能量不均等原因导致网络寿命过短的问题，设计一种视觉传感器网络目标覆盖算法。该算法基于节点与目标的覆盖关联关系，利用关系矩阵及相关运算对覆盖频繁目标集进行挖掘，进而对工作节点进行动态选举，以此延长网络的生存时间。实验结果表明，该算法在保证网络覆盖质量的前提下能够高效地调度工作节点，均衡节点耗能，有效延长网络寿命。

关键词: 视觉传感器网络, 目标覆盖, 关联规则, 节点调度, 覆盖率, 能量均衡

Abstract: To deal with the problem of the short lifespan, which is caused by redundant coverage and unbalanced residual energy. This paper presents a target coverage algorithm for the coverage process in visual sensor networks. Based on the inner connection between the nodes and targets, this algorithm employs relational matrix to excavate the frequent coverage set for the targets. Moreover, the sets of work nodes are elected dynamically with the aim to extend the lifespan of the network. Experimental results show that the algorithm efficiently dispatches the work nodes under the premise of the quality of coverage. Meanwhile, it effectively balances energy consumption of the nodes and increases the lifespan of the network.

Key words: visual sensor networks, target coverage, association rule, nodes schedule, coverage rate, energy balance

中图分类号: 

• TP393