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Car backing track describing method and device

A technology for delineating devices and trajectories, applied in vehicle parts, transportation and packaging, road network navigators, etc., can solve the problems of cumbersome calibration process and lack of many methods for calibration efficiency, and achieve the effect of improving efficiency and accuracy

Active Publication Date: 2015-12-09
FORYOU GENERAL ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this solution is that it needs to be calibrated for each vehicle, and the calibration process is cumbersome, and there are not many ways to improve the calibration efficiency

Method used

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  • Car backing track describing method and device
  • Car backing track describing method and device

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] see image 3 , is a schematic flowchart of a method for drawing a reversing trajectory provided by an embodiment of the present invention. The method includes the steps of:

[0040] S101. Acquire the ground coordinates of the reversing trajectory in real time based on the current vehicle steering wheel steering angle according to the pre-calibrated vehicle characteristic parameters;

[0041] S102. Depict the obtained ground coordinates of the reversing tra...

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Abstract

The invention discloses a car backing track describing method. The method comprises the steps that ground coordinates of a car backing track line are obtained in real time on the basis of the current steering angle of a steering wheel of a car according to pre-calibrated car characteristic parameters; the obtained ground coordinates of the car backing track line are described in a constructed car backing scene, wherein the car backing scene is the 3D scene constructed by car backing videos obtained in real time through OpenGL ES; described plane images of the car backing track line are output and overlaid on the car backing videos and then displayed through a display screen. The invention further discloses a car backing track describing device. By the adoption of the car backing track describing method and device, the calibration steps are simple, and the car backing track describing efficiency and accuracy can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method and device for drawing a reversing track. Background technique [0002] The visual reversing system is an important part of the car auxiliary system, and its purpose is to help the driver overcome the trouble of the blind spot behind the car and complete the reversing. The earlier reversing assistance systems are voice alarm prompt system and ultrasonic radar reversing system, both of which have no visual function and cannot solve the problem of the rear blind spot of the vehicle. Later, the reversing assistance system consisting of a vehicle rearview camera, a vehicle display and a controller for collecting image data and processing image data can see the scene behind the vehicle, but the distance of obstacles behind the vehicle requires experienced drivers predict. If the vehicle's reversing track can be predicted on the display screen according to the angle of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R11/02G01C21/34
CPCB60R11/0211B60R11/0258G01C21/34
Inventor 尚平
Owner FORYOU GENERAL ELECTRONICS