Method and system for positioning mobile terminal

A mobile terminal and moving average technology, applied in electrical components, wireless communication, etc., can solve the problems of poor real-time and stability, inability to obtain accurate location information, and high cost of use, and achieve the effect of high stability and low cost positioning

Inactive Publication Date: 2013-01-09
北京惠联科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a mobile terminal positioning method and system in the subway to overcome the inability to obtain accurate location information in an environment with relatively unstable signals in the prior art, which has high cost of use and real-time and positioning issues with poor stability

Method used

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  • Method and system for positioning mobile terminal
  • Method and system for positioning mobile terminal
  • Method and system for positioning mobile terminal

Examples

Experimental program
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Embodiment 1

[0055] The mobile base stations arranged in the current subway are generally connected by leaky cable, that is, the signal of the base station is extended to the subway channel through the leaky cable, forming a different base station location deployment feature from the external base station. The base station in the subway presents Linear arrangement. like figure 1 A schematic diagram of the deployment of a leaky cable and a base station is shown ( figure 1 including platform 1-platform 3; base station 1-base station 3; leaky cable 1 and leaky cable 2; subway passage 1 and subway passage 2).

[0056] Please refer to the attached figure 2 It is a flow chart of a mobile terminal positioning method disclosed in the present invention, which mainly includes the following steps:

[0057] Step S101, acquiring in real time the location identifier of the base station when the mobile terminal passes through each switching point and the time corresponding to the passing time, where ...

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Abstract

The invention discloses a method and a system for positioning a mobile terminal in a subway. The method includes the steps: acquiring a base station position identifier of the mobile terminal passing through a base station and time corresponding to passing in real time; and when monitoring change of the base station position identifier, determining that signals are switched by the base station, determining a reference position, reference time and the time of the mobile terminal, determining an offset distance based on time difference between the time of the mobile terminal and the reference time and average moving speed, and finally, positioning the current mobile terminal according to the offset distance. By the aid of the method and the system, accurate position information is acquired in an environment with unstable signals in a targeted manner based on the running track and a path of a train fixed into the subway and real-time dynamic monitoring of change of the base station position identifier, and the mobile terminal is positioned in a highly real-time, high-stability and low-cost manner.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a positioning method and system for a mobile terminal in a subway. Background technique [0002] With the development of mobile technology, the functions of mobile phones are becoming more and more comprehensive. In addition to being able to communicate with users, they can also be used as a positioning system. In particular, when a user needs to confirm his current location, mobile phone positioning, as a simple and fast positioning tool, is more and more widely used by people. [0003] Mobile phone positioning technology refers to the technology or service that obtains the location information of mobile phones or end users through specific positioning technology, and marks the location of the positioned object on the electronic map. At present, there are two mainstream technologies in mobile phone positioning technology: one is GPS (Global Positioning System, Glob...

Claims

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Application Information

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IPC IPC(8): H04W64/00
Inventor 周凤鸣
Owner 北京惠联科技有限公司
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