Research on indoor 3D positioning system for natural gas stations based on UWB
In order to solve the problem of low positioning precision of personnel and equipment due to non-line-of-sight(NLOS)phenomenon in natural gas station indoor positioning,a three-dimensional positioning system for natural gas station indoor personnel and equipment based on ultra-wideband(UWB)and Three.js is designed.Through the B/S three-tier architecture,based on the Django framework and the VUE framework,use Python, HTML5,CSS3 and Three.js to realize the three-dimensional visualization of positioning information on the web client.Through the research of UWB technology,in order to ensure the positioning precision,based on the time difference of arrival(TDOA)measurement value,the Kalman algorithm is used to perform NLOS filtering on it,and the Chan algorithm is used to fuse multi-base station data,finally the calculated position of the target point is obtained.By building an experimental environment,the static and dynamic positioning experiments of positioning tags are carried out on the three-dimensional positioning system.The experimental results show that for the complex indoor environment with serious NLOS phenomenon,the system has high positioning precision and stable operation,and can provide a feasible technology for indoor positioning of natural gas stations.
万方数据
维普
