Wireless sensor network barrier coverage plays an important role in intrusion detection. How to construct a robust barrier is a key research issue. For the initial deployment of barriers, with the depletion of node energy, some node dies prematurely, resulting in the existence of more weak points in the barrier. A method of using the re-deployment of mobile nodes to strengthen the barrier is proposed. This method adopts the set-based max-flow algorithm to calculate the number of weak points that can be strengthened and deploys and schedules movable nodes according to the weak situation to strengthen the barrier. The enhanced barrier has better performance and solves the problem of strengthening the weak points of the barrier. Simulation results show that the proposed algorithm can effectively strengthen the barrier and extend the survival time of the barrier, and the complexity of the algorithm is also relatively low.

无线传感器网络的屏障覆盖范围在入侵检测中起着重要作用。如何建立一个强大的障碍是一个关键的研究问题。对于屏障的初始部署，随着节点能量的耗尽，一些节点过早地死亡，从而导致屏障中存在更多薄弱点。提出了一种利用移动节点的重新部署来加强屏障的方法。该方法采用基于集合的最大流算法来计算可增强的弱点数量，并根据弱点情况部署和调度可移动节点以增强屏障。增强的隔栅具有更好的性能，解决了增强隔栅薄弱点的问题。