Multistage positioning method and device for mobile terminal

Abstract

The invention discloses a multistage positioning method for a mobile terminal. In the method, the mobile terminal is rapidly roughly positioned by adopting a global system for mobile communication (GSM) base station positioning method, and in a range determined by a GSM base station, the GSM mobile terminal is accurately positioned by adopting a WiFi / ZigBee positioning technology. The invention also discloses a device adopting the multistage positioning method. The device comprises a host and a submachine. A GSM base station positioning module and a WiFi / ZigBee positioning module are installed on the submachine. A master control module is installed on the host, and is used for controlling the working conditions of the GSM base station positioning module and WiFi / ZigBee positioning module of the submachine. In the method and the device, a plurality of positioning methods are combined so as to effectively eliminate conflicts between the positioning range and positioning accuracy of the mobile terminal.

Description

technical field [0001] The invention relates to radio positioning technology, in particular to a mobile terminal multi-level positioning method and device. Background technique [0002] The current wireless positioning technology is a first-level positioning method, that is, positioning the target once, using a single technical form, such as GPS positioning, GSM base station positioning, WiFi positioning, Zigbee positioning and other methods. These positioning methods have their own advantages and disadvantages: GPS positioning is accurate, but once the mobile terminal enters the room, it cannot be positioned; GSM base station has a large positioning range and is not restricted by indoors, but the positioning accuracy is too low, and the positioning accuracy is generally above 50 meters ;WiFi positioning, Zigbee positioning and other positioning methods have high accuracy (2 meters to 50 meters), but the positioning range is small, which belongs to the short-distance positio...

AI Technical Summary

Problems solved by technology

[0002] The current wireless positioning technology is a first-level positioning method, that is, positioning the target once, using a single technical form, such as GPS positioning, GSM base station positioning, WiFi positioning, Zigbee positioning, etc.

These positioning methods have their own advantages and disadvantages: GPS positioning is accurate, but once the mobile terminal enters the room, it cannot be positioned; GSM base station has a large positioning range and is not restricted by indoors, but the positioning accuracy is too low, and the positioning accuracy is generally above 50 meters ;WiFi positioning, Zigbee positioning and other positioning methods have high accuracy (2 meters to 50 meters), but the positioning range is small.