Method and device for locating

A positioning data and positioning assistance technology, applied in the electronic field, can solve problems such as long positioning time, affecting user experience, and inability to complete downloading of positioning data sets

Active Publication Date: 2014-02-05
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method and device for positioning, which solves the problem that in the prior art, the user must download the positioning data set of the destination only after arriving at the destination, and then perform positioning operations, and the destination cannot be downloaded at the current location. The download of the positioning data set is completed. If the destination network is poor or there is no network, the positioning time will be too long, which will affect the user experience.

Method used

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  • Method and device for locating

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Embodiment Construction

[0027] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0028] figure 1 It is a flow chart of a positioning method provided by an embodiment of the present invention, please refer to figure 1 , the method includes:

[0029] S101: Acquire a positioning data set of a destination at a current location. The current location is different from the destination. Specifically, at the current location, the base station information of the destination is sent to the location server, and the location server sends the corresponding positioning data set to the terminal according to the base station information of the destination. The positioning data set includes positioning data sets for all satellites that can be obtained by the location server, and the positioning data set includes but not limited to: ephemeris data and ephemeris data. Preferably, the location data set of the destination can be...

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Abstract

The invention provides a method and device for locating. The method includes the steps of obtaining a location data set of a destination at the current place which is different from the destination, searching for a GPS satellite at the destination, receiving location auxiliary data collected by the searched GPS satellite, judging whether location data corresponding to the location auxiliary data exist in the location data set or not, and calculating the current geographic position according to the location data when the location data corresponding to the location auxiliary data exist in the location data set. According to the method and device, the problems that a user can download the location data set only after reaching the destination to further conduct location operation, the location data set cannot be downloaded at the current place, if the network condition is poor or no network exists, the location time is excessively long, and therefore the user experience is influenced are solved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a positioning method and device. Background technique [0002] With the vigorous development of electronic technology, the positioning technology of GPS (Global Positioning System) has also been greatly developed, and the functions of using GPS technology for navigation, positioning, and timing have been more and more widely used. The process of GPS technology for navigation and positioning is briefly described as follows: search for GPS satellites, receive positioning assistance data collected by the searched GPS satellites, demodulate the received positioning assistance data, receive positioning assistance data and demodulate the needs of the entire process. One minute, that is, the fastest GPS positioning is about one minute. Therefore, in order to complete the entire positioning in a shorter time, AGPS (Assisted Global Positioning System) technology has emerged. AGPS is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/45
CPCG01S19/25G01S19/42
Inventor 张博学
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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