Time synchronization in industrial wireless sensor networks based on information fusion

A wireless sensor networks (WSNs) is typically made up of numerous sensors which have different clock accuracies. Time synchronization is crucial to maintain data consistency, coordination, and perform other fundamental operations: power management, security, and data fusion and scheduling. In order to realize united time, the united time service system or the time server must be established. In this paper, based on industrial wireless sensor network, Sliding Window Algorithm and fault-tolerance strategy of time synchronization are studied and the error analyses are given. The proposed algorithm has lower average synchronization error compared to the existing algorithms.