基于UWB技术的矿用车辆管理系统

Mine-used vehicle management system based on UWB technology

为了解决目前矿用车辆定位过程中动态误差大、定位方向不准确、定位数据丢失等急问题,采用超宽带(UWB)无线载波通信技术,综合对比研究TDOA和TOF 2种时间差进行定位的方法,通过测量信号源与各监测点之间的距离精确的计算出信号源发生的位置。结果表明:当信号源位移速度在大于等于7 m/s的条件下,通过长距离测试验证,其所有信号源最大动态定位误差值均小于7.3 m的AQ 6211—2008标准要求,利用TDOA算法进行测量点与被测量点位置的确定,利用TOF算法进行测量点与被测量点距离的计算,可以有效解决误差、方向及数据等问题。

In order to solve the urgent problems such as large dynamic error,inaccurate positioning direction and loss of positioning data in the current positioning process of mine-used vehicles,UWB ultra wideband wireless carrier communication technology is used to comprehensively compare and study TDOA and TOF two time difference positioning methods,and the location of the signal source is accurately calculated by measuring the distance between the signal source and each monitoring point.The results show that when the displacement speed of the signal source is greater than or equal to 7 m/s,through long-distance test verification,the maximum dynamic positioning error of all signal sources is less than the requirements of AQ 6211—2008 standard of 7.3 m.Using TDOA algorithm to determine the position of the measuring point and the measured point,and using TOF algorithm to calculate the distance between the measuring point and the measured point can effectively solve the problems of error,direction and data.