Indoor relative position determining system, control method and control device

Abstract

The invention provides an indoor relative position determining system and method based on 802.11 series protocols and EBP broadcasting. The indoor relative position determining system comprises a plurality of EBPs (ESSID broadcast points), a plurality of mobile terminals supporting the 802.11 series protocols and a background data processing center. The EBPs are distributed indoors to form an 802.11 microcellular network, each EBP covers a specific region, and ESSID information preset by the EBPs is broadcasted continuously. The mobile terminals obtain an indoor map containing all EBP position information of the system from the background data processing center and receive wireless signals covering the terminals and based on the 802.11 series protocols, a current ESSID is obtained, the ESSID is matched with local pre-stored information, and accordingly the relative positions of the mobile terminals are determined. The background data processing center conducts management on the indoor map and EBP position databases and provides information interaction of positions shared by users.

Description

technical field [0001] The present invention relates to an indoor location service system, in particular to a wireless indoor relative location determination method and system based on 802.11 series protocols, as well as a corresponding control method and a control device. Background technique [0002] The development of mobile computing devices and the progress of wireless local area network technology have promoted the rapid development of mobile positioning technology. Triangulation positioning, image analysis and beacon positioning are the three main automatic positioning technologies. Since the global positioning system belongs to satellite positioning, there is an inherent positioning accuracy problem in indoor positioning, so other positioning technologies must be used to solve the indoor positioning problem. Commonly used indoor positioning technologies mainly include infrared, 802.11, 802.15, ultrasonic and RFID technologies. [0003] With the popularization of wir...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects in the prior art, the technical problem to be solved by the present invention is: aiming at the lack of internal location services in the current large buildings, based on the 802.11 series protocols, it provides convenient and feasible indoor The relative position determination method and system solves the problems that the existing technology is too complicated to deal with such problems, the universality is not high, it is difficult to adapt to complex environments and the cost of system construction is high

Images