传感网络终端时钟同步的目标定位模型分析

The Analysis to Target Location Model for Clock Synchronization of Sensor Network Terminals

由于传统目标定位模型分析会增加目标定位时延,为了缩小目标定位时延,提出了传感网络终端时钟同步的目标定位模型分析。通过传感网络终端的仿真计算,分析了时钟同步的目标状态,在选取合适的模拟方法基础上,确定了目标节点位置与定位系数之间的关系,设计了传感网络终端时钟同步的模拟过程,完成传感网络终端的时钟同步模拟;在模拟后的传感网络终端时钟同步中设置目标采集指令,由路由器将目标采集指令转发,为了确保传感网络终端节点进入待采集状态的准时性,计算了目标的采集时间,采集时间确定后,协调器还要将等待接收反馈目标的时间上传到传感网络终端,完成传感网络终端时钟同步的目标采集;最后通过时钟同步目标定位模型的构建,实现了传感网络终端时钟同步的目标定位。仿真实验结果显示,提出的目标定位模型分析可以缩短目标定位时延。

Because the analysis to the traditional target location model will increase the target location delay,in order to reduce the target positioning delay,an analysis to target location model for clock synchronization of sensor network terminals is proposed.Through the simulation calculation to the sensor network terminal,the target state of clock synchronization is analyzed.On the basis of selecting an appropriate simulation method,the relationship between the target node position and the positioning coefficient is determined,and the simulation process of clock synchronization for sensor network terminals is designed.The clock synchronization simulation of the sensor network terminal is completed.A target acquisition instruction in the simulated sensor network terminal clock synchronization is set,and the router forwards the target acquisition instruction.In order to ensure the punctuality of the sensor network terminal node entering the state to be collected,the acquisition time of the target is calculated,After the acquisition time is determined,the coordinator also uploads the time waiting for receiving the feedback target to the sensor network terminal,to complete the target acquisition of clock synchronization of the sensor network terminal.Finally,through the construction of clock synchronization target location model,the target positioning of the clock synchronization of the sensor network terminal is realized.The simulation results show that the analysis of the proposed target location model can shorten the target location delay.