Optimization method and device of vehicle location track

A technology of trajectory and positioning information, applied in the field of vehicle positioning trajectory optimization method and device, can solve the problems of vehicle turning misjudgment, positioning trajectory deviation, loss of trajectory points, etc., and achieve the effect of reducing traffic costs and saving data traffic.

Active Publication Date: 2017-08-22
CHINA MOBILE M2M
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the prior art, due to the misjudgment of the vehicle turning caused by the error of the direction angle information and the loss of the track point at the beginning of the curve, the positioning track is offset

Method used

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  • Optimization method and device of vehicle location track
  • Optimization method and device of vehicle location track
  • Optimization method and device of vehicle location track

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Embodiment Construction

[0040] In each embodiment of the present invention, through the curve judgment strategy, GPS and electronic compass are used for double judgment to accurately judge that the vehicle enters the curve, and by caching the positioning information, after judging that the vehicle enters the curve, a reissue The latest cached positioning information to ensure the optimization of the curve track. At the same time, it can dynamically send positioning information according to the driving speed of the vehicle. When the vehicle speed is high, the sending frequency is increased, and the sending frequency is reduced when the vehicle speed is low. In this way, in ensuring While the positioning trajectory is accurate, data traffic is saved.

[0041] figure 1 It is a flowchart of a method for optimizing a vehicle positioning trajectory provided by an embodiment of the present invention. Such as figure 1 As shown, the method provided in this embodiment can specifically be executed by an optim...

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Abstract

The embodiment of the present invention provides an optimization method of a vehicle location track. The method comprises caching positioning information at a first preset time interval, judging whether the vehicle enters a bend according to a bend judgment strategy, and when the vehicle enters the bend, sending the latest cached positioning information to a server and sending the positioning information to the server at the first preset time interval. The embodiment of the present invention also provides an optimization device of a vehicle location track.

Description

technical field [0001] The invention relates to the technical field of vehicle positioning data services, in particular to a method and device for optimizing vehicle positioning tracks. Background technique [0002] Vehicle positioning generally adopts Global Positioning System (GPS) positioning technology, and transmits positioning data to the server through a wireless data network, such as 2G, 3G or 4G data network, and the server forms a vehicle trajectory based on the uploaded historical positioning data. [0003] Since the transmitted positioning call will generate data traffic charges, in the prior art, the positioning data is generally uploaded to the server at isochronous or equidistant time, and when the vehicle turns is judged by detecting the direction angle, so as to save data traffic. [0004] However, in the prior art, the misjudgment of the vehicle turning caused by the error of the direction angle information and the loss of the track point at the beginning o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34
CPCG01C21/3415
Inventor 杨鹏博黄鹏飞
Owner CHINA MOBILE M2M
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