基于UWB技术的矿井精确定位系统  

Accurate positioning system for mine based on UWB technology

作　　者：王飞 WANG Fei(State Key Laboratory of the Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400039,China;China Coal Technology&Engineering Group Chongqing Research Institute,Chongqing 400039,China)

机构地区：[1]瓦斯灾害应急信息技术国家重点实验室,重庆400039 [2]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《煤矿安全》2021年第7期99-102,共4页Safety in Coal Mines

基　　金：2020年重庆市技术创新与应用发展专项面上资助项目(cstc2020jscx-msxmX0136)。

摘　　要：提出一种基于UWB技术的矿井精确定位系统设计方案。首先分析矿井巷道的环境特点,然后研究系统组网模型和UWB精确定位算法;为了提高单基站精度定位并发容量,研究时隙资源调度算法,合理划分基站频段,从而避免UWB无线信号冲突;基站和定位卡具有UWB和ZigBee多射频技术,UWB技术用于TOF测距,ZigBee技术用于扫描网络和申请测距时隙资源。测试结果表明:定位精度≤±0.3 m,单基站精确定位并发容量可达200,定位距离可达400 m。This paper proposes a design scheme of mine precision positioning based on UWB technology.Firstly,the environmental characteristics of mine roadways are analyzed,and then the system networking model and UWB accurate positioning algorithm are studied.In order to improve concurrent capacity of the positioning accuracy,the time-slot resource scheduling algorithm is studied and the base station frequency band is reasonably divided,so as to avoid UWB wireless signal conflict.Base stations and cards are equipped with UWB and ZigBee multi-radio frequency technologies.UWB technology is used for TOF ranging.ZigBee technology is used to scan the network and apply for the ranging time slot resource.The test results show that the UWB accurate positioning error is less than or equal to±0.3 m,the concurrent positioning capacity is up to 200,and the positioning distance is up to 400 m.

关 键 词：人员定位系统 UWB精确定位 ZIGBEE 飞行时间 信号强度 时隙调度 

分 类 号：TD76[矿业工程—矿井通风与安全]