无线微震传感器网络高精度时间同步技术研究  

High accuracy time synchronization technology in wireless microseismic sensor networks

作　　者：王盛 张达 冀虎 WANG Sheng;ZHANG Da;JI Hu(Beijing General Research of Mining and Metallurgy,Beijing 102628,China;BGRIMM Technology Group,Beijing 102628,China;China-South Africa“Belt and Road”Joint Laboratory for Sustainable Development and Utilization of Mineral Resources,Beijing 102628,China)

机构地区：[1]北京矿冶研究总院,北京102628 [2]矿冶科技集团有限公司,北京102628 [3]中国-南非矿产资源可持续开发利用“一带一路”联合实验室,北京102628

出　　处：《有色金属（矿山部分）》2024年第3期70-78,共9页NONFERROUS METALS(Mining Section)

基　　金：国家重点研发计划项目(国合专项)(Q2020YFE020011)。

摘　　要：时间同步技术作为无线微震传感器网络的核心技术之一,是网络协调运行的关键。首先研究了无线传感器网络时间同步原理及影响同步精度的因素;其次研究了经典无线时间同步协的实现方法;然后仿真对比了传感器网络时间同步协议(Timing-sync Protocol for Sensor Networks,TPSN)和泛洪式时间同步协议(Flooding Time Synchronization Protocol,FTSP)的同步精度;再针对FTSP协议的不足提出一种改进的G-FTSP协议,能有效提高无线传感器网络时间同步精度;最后估算由时间同步误差造成的微震震源定位误差,验证G-FTSP协议满足实际生产需求。Time synchronization technology,as one of the core technologies for wireless microseismic sensor networks,is crucial for the coordinated operation of the network.This paper first studies the principles of time synchronization in wireless sensor networks and the factors affecting synchronization accuracy.Secondly,it explores the implementation methods of classic wireless time synchronization protocols.Next,it simulates and compares the synchronization accuracy of the Timing-sync Protocol for Sensor Networks(TPSN)and the Flooding Time Synchronization Protocol(FTSP).Then,addressing the shortcomings of the FTSP protocol,an improved G-FTSP protocol is proposed,which can effectively enhance the time synchronization accuracy of wireless sensor networks.Finally,the paper estimates the microseismic source localization errors caused by time synchronization errors,verifying that the G-FTSP protocol meets practical production requirements.

关 键 词：微震监测 无线传感器网络 时间同步协议 RBS TPSN FTSP 高精度 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TD76[自动化与计算机技术—计算机科学与技术]