Design and Realization of Ultra-Wideband-based Indoor Personnel Positioning System

In order to meet the indoor positioning requirements of specific places such as factories, museums, libraries and shopping malls, a set of Ultra Wide Band (UWB) indoor personnel positioning system, which can be self-localized by the base station and self-networked by the system, has been designed and implemented. The system mainly includes the host computer, UWB base station module and tag module, real-time positioning tag coordinates through the Time of Arrival (TOA) positioning algorithm, real-time personnel tracking and positioning, but also can realize the historical trajectory of personnel traceability. This paper researches the base station self-localization algorithm and system self-organizing network algorithm on the basis of realizing the positioning function, realizes the rapid positioning of the base station coordinates, and solves the problem of avoiding the mutual interference of different systems.