摘要
针对煤矿井下精确实时定位的需求,提出了一种基于TOF技术煤矿井下精确定位系统的设计与实现方案,通过分析矿井巷道的一维线性空间特点,采用主、辅读卡器实现精确定位和方向判断,并采用时分方式解决无线信号冲突问题,极大地提高了系统容量和定位精度。测试结果表明该系统定位精确达到了5 m以内,能够实时提供井下人员或设备的准确位置及活动轨迹。
According to the demand of the coal mine precise real-time positioning, a design scheme of coal mine precise positioning system based on TOF technology was proposed. The system uses master reader and slave reader to implement precise positioning and walking direction by analyzing the characteristics of the mine roadway. Meanwhile,it uses time-division technique to improve system capacity and positioning accuracy by solving the conflicts of the wireless signal. The testing results show that the accuracy of positioning is less than 5 m. This system achieves real-time path tracing of underground workers.
出处
《煤炭技术》
CAS
北大核心
2015年第10期262-264,共3页
Coal Technology
基金
2014年工信部物联网发展专项资金项目(2014083105)
关键词
TOF
精确定位
时隙调度
时分
time of flight
precise positioning
timeslot schedule
time division
