基于GPS/UWB技术的无缝定位平台设计

Design of Seamless Positioning Monitoring Platform Based on GPS/UWB Technology

为了实现室内外定位的无缝连接和平滑过渡,提出了一种利用GPS定位技术获取目标室外位置信息,利用超宽带定位技术(UWB)获取目标室内位置信息的组合技术并应用于自主设计的无缝定位平台。定位基站采用STM32芯片为主控制器,DWM1000为无线信号收发器。定位标签还增设GPS模组。为了增强平台定位服务的连续性,提高目标在室内外交界地带的定位精度,设计出一种基于阈值和权重的GPS-UWB融合算法,对处于室内外过渡地带的目标实现精准定位。实验结果表明:该无缝定位平台能够实现对目标室内外无缝定位,改善定位服务连续性,提高了室内外交界地带的定位精度。

In order to realize the seamless connection and smooth transition of indoor and outdoor positioning,a combination technology of using GPS positioning technology to obtain target outdoor environment location information and ultra wideband positioning technology(UWB)to obtain target indoor location information was proposed and applied to the self-designed seamless positioning platform.Location base station adopts STM 32 as main controller and DWM 1000 is signal transceiver.GPS modules were added to locate tags.In order to enhance the continuity of positioning service improve positioning accuracy of monitoring target in indoor and outdoor junction area a new fusion algorithm based on valve value and weight applied to transitional zone was proposed.This seamless positioning monitoring platform can achieve seamless positioning indoor and outdoor monitoring target room improve positioning service continuity improve location accuracy between indoor and outdoor junction zone.