Research on Fault-Tolerant Strategy of Time Synchronization for Industrial Wireless Sensor Network

Many applications in industrial wireless sensor networks require time synchronization. Time synchronization is required for consistent distributed sensing and industrial control. In order to realize united time, the united time service system or the time server must be established. Based on industrial wireless sensor networks, information fusion automatically analyzes and monitors information under the certain criterion. In this paper, based on industrial wireless sensor network, time synchronization technology and fault-tolerance strategy of time synchronization are studied and the error analyses are given, the time correct value algorithm and the analyses to the synchronization result are proposed. Result shows that this method is feasible and can be used to wireless sensor networks.