Perception of Building Internal Structure Based on UWB Network

This paper aims at the weak perception of the internal structure of the building, and studies the UWB network sensing architecture internal structure. According to the building type and measurement principle, the UWB network is constructed to sense the internal structure of the building in real time; based on EKF, the tag movement state in the positioning network is obtained; using the error characteristics between the measured distance and the actual distance, the topological relationship between the UWB network and the building internal structure is established. The simulation results show that the deviation between EKF trajectory and real trajectory is less than 15 mm, and the wall parameters in the positioning network can be inferred through the error between the measured distance and the actual distance, so as to complete the perception of the internal structure of the building, provide information support for the follow-up action, and reduce casualties.