高精度室内定位研究评述及未来演进展望

Nowadays, indoor high-accuracy positioning service has gradually evolved from a value-added service to an infrastructure service, and has become a key support for many scenarios, such as smart city, smart factory, indoor-outdoor integrated navigation, etc. With the increasingly development of positioning technology in recent years, a variety of positioning solutions are blooming in this field. However, there is still a lack of overview to provide a timely, comprehensive and systematic analysis of the development status, and that of prospects for where the positioning technologies based on network are heading. Based on the analysis of the existing papers, we summarize this field from two aspects: positioning-techniques and positioning-methods.Then, this paper puts forward a classification model based on the positioning scenarios and points out the "hidden requirements" included. In addition, the evaluation indices system of positioning-systems is proposed and some of the existing high-accuracy positioning system is evaluated by it. Finally, the direction of evolution about high-accuracy indoor positioning field is summarized, and some important concepts, such as "ONLINE is INPLACE", are proposed.