A WKNN/PDR/Map-Matching Integrated Indoor Location Method

A new WKNN/PDR/map-matching integrated indoor location method is proposed. First, the wireless sensor signal fingerprint library is created, and indoor map and indoor road network data are produced. The integrated WKNN fingerprint matching algorithm and PDR algorithm are used in the localization process. Solved the problem of instability of the location result and the error accumulation; Then indoor map and indoor road network data are used to calibrate the initial indoor positioning results. It is proved by experiments that the integrated indoor location method proposed in this paper can meet the indoor location requirements under a certain scene, and the positioning accuracy is better than that of a single method.