Positioning method, equipment and system based on WLAN

Abstract

The invention discloses a positioning method based on WLAN. The method comprises the steps: receiving a request message for inquiring the position information of a target terminal, wherein the request message carries the identification information of the target terminal; obtaining the position information of AP belonging to the target terminal according to the identification information of the target terminal and a first corresponding relation which is the corresponding relation between the identification information of the target terminal and the position information of the access point AP belonging to the target terminal; and feeding back by taking the position information of the AP belonging to the target terminal as the position information of the terminal. The invention also discloses positioning equipment and a positioning system based on WLAN. The invention can realize the positioning scheme of the target terminal based on WLAN; it is necessary to maintain and inquire a terminal database by the terminal; the reconstruction extent to the network is less and the implementing cost is lower.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a positioning method, device and system based on WLAN. Background technique [0002] With the maturity of WLAN (Wireless Local Area Network, WLAN) technology and the reduction of chip costs, the deployment of 802.11 networks has been developed on a large scale. The wireless access service provides convenience for citizens to obtain information and improves the city's competitiveness. In this context, the realization of user positioning based on wireless local area network has a good application prospect. [0003] In the prior art, in order to realize WLAN-based terminal positioning, the approximate location of the terminal is generally obtained by querying the location of the AP where the terminal resides. A WLAN-based positioning method in the prior art is: the terminal obtains the MAC address of the AP, and queries the location information of the AP through the...

AI Technical Summary

Problems solved by technology

After analysis, the inventor found that the disadvantage of this method is that when the terminal obtains the MAC address of the AP, it needs to perform a corresponding location query in the database it maintains, which will increase the burden of the terminal on database maintenance and query

After analysis, the inventor found that the shortcoming of this method is that since the AP directly encodes its own location information, the AP must transfer the location information to the terminal through effective means. This operation requires that the 802.11 network must add new information. Order, the transformation of the network is relatively large, which may cause high implementation costs

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