Research And Application Of Time Synchronization Algorithm For Wireless Sensor Networks

The sensor nodes can carry out data acquisition,monitor events,position display and real-time control of sensor nodes in real time.The characteristics of sensor nodes and their wireless connection can make the application of wireless sensor networks very promising and can be widely used in Building condition monitoring,health monitoring and real-time care,environmental monitoring and forecasting,smart home,urban traffic monitoring and command,space exploration,large shop and warehouse management,and safety monitoring in large public places.With the popularity of wireless sensor networks in various fields,the status of wireless sensor networks is becoming more and more prominent,improving the efficiency of wireless sensor network node resources,improving the real-time information transmission and improving the overall system performance And so on,time synchronization also has important significanceAt present,there are GPS and IEEE1588 protocols with high precision.However,it is not the best choice to adopt the problems of high cost and security risk.And small wireless network nodes through to achieve time synchronization is not practical,the agreement in the Ethernet has a better application,but in the wireless case there is no synchronization accuracy is not high and other shortcomings.Therefore,it is of great practical significance to realize the high precision time synchronization of the nodes in the wireless networkIn traditional wireless sensor networks,traditional time synchronization algorithms are used,such as RBS(Reference Broadcast Synchronization),TPSN(Timing-sync Protocol for Sensor Networks),etc.,these algorithms can not solve a long-standing problem,Sensor network in the inconvenient to replace the power of the special node energy consumption problems,affecting the overall system life.Therefore,by analyzing the existing synchronization algorithm,a TPSS algorithm based on TPSN and DMTS algorithm is proposed,which can reduce the energy consumption of special nodes under the premise of ensuring the accuracy of the system.