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GPS positioning method

A technology of GPS positioning and GPS data, applied in the field of GPS positioning, can solve problems such as difficult and accurate GPS positioning, and achieve the effect of precise GPS positioning

Inactive Publication Date: 2009-12-23
SHANGHAI SIMCOM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect that it is difficult to perform accurate GPS positioning in the no-map mode in the prior art, and provide a GPS positioning method that can perform more accurate positioning in the no-map mode

Method used

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  • GPS positioning method

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Embodiment Construction

[0015] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0016] The module involved in the present invention includes a GPS receiving terminal, a mobile terminal and a server for receiving GPS data of the mobile terminal, wherein the GPS receiving terminal entity is in the mobile terminal. The server sends a positioning request to the mobile terminal device and receives the GPS positioning data returned by the mobile terminal; the mobile terminal device receives the positioning request from the server, starts the GPS device, and implements the method of the present invention to select the best point from multiple GPS positioning points , send the positioning data of the best point back to the server. Among them, the GPS receiving terminal receives the GPS satellite signal, and transmits the data from the serial port to the mobile terminal devi...

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Abstract

The invention discloses a GPS positioning method, which comprises the following steps that: S1, a server sends a positioning request to a mobile terminal and the mobile terminal responds to the request, sets the number of positioning points and reads the GPS data of the number of positioning points; S2, each positioning point is assigned with a weight according to the GPS data of each positioning point, wherein the weight consists of weights of a plurality of factors and the weights of the plurality of factors are calculated and added to obtain the weight of the positioning point; S3, the weight of each positioning point is calibrated; and S4, the positioning point with the largest weight is selected and sent back to the server. The method can perform accurate GPS positioning in a mapless mode.

Description

technical field [0001] The invention relates to a GPS positioning method, in particular to a GPS positioning method applied in a mapless mode. Background technique [0002] At present, GPS positioning, such as navigation equipment, has an electronic map on the equipment itself. During the operation of the mobile device, the positioning point is collected from the GPS chip. If the positioning point drifts, it can be judged that the positioning point is not on the street according to the characteristics of the map, such as a street, so the drifting point can be simply discarded. However, the space occupied by the electronic map is very large, and some devices do not have such a large memory space. There is no electronic map installed, so there is no reference for the positioning point, and the equipment used for tracking is generally very small. big deviation. [0003] The GPS chip gives a positioning data point every second, and several positioning data points can be obtai...

Claims

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Application Information

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IPC IPC(8): G01S5/02G01C21/00
Inventor 曾武军
Owner SHANGHAI SIMCOM LTD
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