基于UWB与光束控制的物品定位指向系统

Object positioning and pointing system based on UWB and beam control

针对于室内环境中传统标记号指向寻物效率较低,难以快速准确获取物品位置信息的问题,提出了一种直观、高效的定位指向解决方案。将超宽带室内定位技术与光束控制技术相结合,基于信号到达时间定位模型,采用对称双向双边测距方案获取信标与基站间的距离,上传至上位机中经三边定位算法计算出信标位置。指向时,将物品位置通过光束指向算法转换为光束灯的水平与垂直偏转角度,再进行DMX512协议编码后控制光束灯指向目标位置,以达到物品的精准定位与指向。系统经过验证,定位精度可达0.091 m,指向精度可达0.032 m,与传统标记号指向寻物相比,可减少近一半寻物耗时,系统定位与指向都具有较高的精度,可提高人工寻找物品的效率。

Aiming at the problem of low efficiency of traditional marker pointing to find objects in indoor environment and difficulty in quickly and accurately obtaining the location information of objects, an intuitive and efficient positioning and pointing solution is proposed. Combining ultra-wideband indoor positioning technology and beam control technology, based on the signal arrival time positioning model, adopts a symmetrical two-way bilateral ranging scheme to obtain the distance between the beacon and the base station, and uploads it to the host computer to calculate the beacon by the trilateral positioning algorithm position. When pointing, the position of the item is converted into the horizontal and vertical deflection angle of the beam lamp through the beam pointing algorithm, and then the DMX512 protocol is coded to control the beam lamp to point to the target position to achieve precise positioning and pointing of the item. The system has been verified, the positioning accuracy can reach 0.091 m, and the pointing accuracy can reach 0.032 m. Compared with the traditional tag number pointing to the object, it can reduce the time for searching by nearly half. The system positioning and pointing have high accuracy, which can be effectively improved.