Research on multi-tag anti-collision algorithm based on UWB real-time positioning system

Ultra Wideband Real-Time Location System (UWB RTLS) is a real-time positioning system with high precision, which contains a number of positioning tags and anchors, and the collision between multi tags is the main reason that affects the communication efficiency and positioning accuracy in UWB RTLS. The ALOHA algorithm and the binary tree algorithm are the mainstream of the anti-collision algorithm. Therefore, the ALOHA anti-collision algorithm is proposed in the UWB multi-tags positioning system. This algorithm is suitable for the dynamic change of the tag's capacity and the system, and it can effectively improve the system efficiency.