Performance Evaluation of Three-Dimensional UWB Real-Time Locating Auto-Positioning System for Fire Rescue  

作　　者：Hang Yang Xunbo Li Witold Pedrycz 

机构地区：[1]School of Mechanical and Electrical Engineering,University of Electronic Science and Technology of China,Chengdu,611731,China [2]Department of Electrical and Computer Engineering,University of Alberta,Edmonton,T6G 1H9,Canada [3]School of Information Engineering,Southwest University of Science and Technology,Mianyang,621000,China

出　　处：《Intelligent Automation & Soft Computing》2023年第9期3039-3058,共20页智能自动化与软计算（英文）

摘　　要：Fire rescue challenges and solutions have evolved from straightfor-ward plane rescue to encompass 3D space due to the rise of high-rise city buildings.Hence,this study facilitates a system with quick and simplified on-site launching and generates real-time location data,enabling fire rescuers to arrive at the intended spot faster and correctly for effective and precise rescue.Auto-positioning with step-by-step instructions is proposed when launching the locating system,while no extra measuring instrument like Total Station(TS)is needed.Real-time location tracking is provided via a 3D space real-time locating system(RTLS)constructed using Ultra-wide Bandwidth technology(UWB),which requires electromagnetic waves to pass through concrete walls.A hybrid weighted least squares with a time difference of arrival(WLS/TDOA)positioning method is proposed to address real path-tracking issues in 3D space and to meet RTLS requirements for quick computing in real-world applications.The 3D WLS/TDOA algorithm is theoretically constructed with the Cramer-Rao lower bound(CRLB).The computing complexity is reduced to the lower bound for embedded hardware to directly compute the time differential of the arriving signals using the time-to-digital converter(TDC).The results of the experiments show that the errors are controlled when the positioning algorithm is applied in various complicated situations to fulfill the requirements of engineering applications.The statistical analysis of the data reveals that the proposed UWB RTLS auto-positioning system can track target tags with an accuracy of 0.20 m.

关 键 词：3D space positioning ULTRA-WIDEBAND real-time locating system time difference of arrival Cramer-Rao lower bound fire rescue 

分 类 号：TN925[电子电信—通信与信息系统]