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Position correction method and related device

A technology of equipment and reference equipment, which is applied to measurement devices, satellite radio beacon positioning systems, instruments, etc., can solve the problem of high cost of correction solutions and achieve the effect of saving facility costs

Active Publication Date: 2017-04-26
NEUSOFT CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, this application provides a position correction method, which is used to solve the problem of high cost of existing correction solutions

Method used

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  • Position correction method and related device
  • Position correction method and related device
  • Position correction method and related device

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0030] A positioning device such as a GPS (Global Positioning System, Global Positioning System) is installed on the vehicle. If you want to correct the positioning data obtained by the positioning device, you can use the road network data of the area where the vehicle is located. It is understandable that once the roads in a region are formed, their positions are fixed. Therefore, the road network data in this region is accurate. Moreover, the road network data can be obtained dire...

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Abstract

The application provides a position correction method. The method comprises the following steps: after acquiring the position data of a to-be-corrected device, looking for a moving reference device around the to-be-corrected device; according to the movement track of the reference device, looking for a target road fitting the movement track in the road network data of the region where the to-be-corrected device is located; calculating the position error between the movement track and the target road; and correcting the position data of the to-be-corrected device according to the position error so as to determine the accurate position of the to-be-corrected device. There is no need to set base stations extensively, and there is only the need to get the road network data of a region, so that facility cost is saved a lot. In addition, the invention provides a position correction device used to ensure practical application and implementation of the method.

Description

technical field [0001] The present application relates to the field of positioning technology, more specifically, a position correction method and related equipment. Background technique [0002] Nowadays, a positioning device such as a GPS (Global Positioning System, Global Positioning System) is usually installed on a vehicle to locate the position of the vehicle. The GPS positioning device uses positioning satellites to work, but due to satellite orbit error, satellite clock error, atmospheric refraction error, receiver clock error and other reasons, there is a certain deviation in the positioning accuracy of the GPS positioning device. [0003] A current method for correcting positioning deviation is to use a differential GPS base station for correction. Specifically, a base station is installed next to the road where the vehicle is driving, and a GPS receiver is installed on the base station. After the GPS receiver obtains the positioning coordinates of the base statio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/40
CPCG01S19/40
Inventor 赵博
Owner NEUSOFT CORP
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