Research on Wi Fi indoor location technology based on Knowledge Map

Abstract

In common Wi-Fi Indoor positioning method , Most of the research focuses on the accuracy of location algorithm , But how to organize and process the existing indoor data efficiently , There is not much research on application system to realize indoor location service . In response to such problems , Combine knowledge map with traditional indoor positioning technology , And use a variety of software development technology to completely develop a practical positioning system . It integrates physical space and information space , Information space includes indoor information acquisition 、 Cloud services 、 Information storage and calculation part , Physical space expresses the indoor spatial structure and its data relationship . Last , adopt WEBGL（web graphics library） Technology for intuitive positioning display , To realize the visualization of indoor signal data and positioning results . The system has a complete data storage and use mechanism , After integrating the existing data and information of indoor IOT devices, room level location services can be provided for users , And the step-by-step positioning function of the system helps to reduce the time-consuming of system calculation .