Adaptive calibration large-scale indoor RSSI mixed filtering positioning method

The invention discloses an adaptive calibration large-scale indoor RSSI (Received Signal Strength Indication) mixed filtering positioning method, comprising an adaptive calibration positioning device. The adaptive calibration positioning device comprises a plurality of terminal nodes, a plurality of nodes to be detected and a coordinator node which are positioned in a ZigBee wireless network; and the terminal nodes and the coordinator node are arranged at indoor fixed positions and distances between the terminal nodes and the coordinator are known. The adaptive calibration large-scale indoor RSSI mixed filtering positioning method adopts ZigBee wireless networking and combines with the mixed filtering method, can effectively reduce inaccuracy distance measurement because of environment factors, can overcome signal blocking because of indoor obstacles, and can effectively improve interference resistance and accuracy, has strong practicability, avoids troubles of measuring path attenuation factors beforehand under various application scenarios and greatly reduces the distance measurement cost.