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A road deviation detection method

A road and road point technology, applied in the field of road deviation detection, can solve problems such as affecting the normal detection and early warning accuracy, poor lighting environment, unclear lane lines, etc.

Active Publication Date: 2019-07-12
HUIZHOU DESAY SV AUTOMOTIVE
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  • Description
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Problems solved by technology

This method relies on image technology, and it is easy to affect the normal detection and early warning accuracy due to unclear lane lines and poor light environment.

Method used

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  • A road deviation detection method
  • A road deviation detection method
  • A road deviation detection method

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] see figure 1 , in one embodiment, a road departure detection method (abbreviated as method) is provided. This method can be applied, but is not limited to, for example figure 2 in-vehicle electronic systems. The system includes a micro-processing module 201 , a positioning module 202 , an inertial measurement component 203 , a steering wheel angle sensor 204 and an output module 205 . Each part is described as follows:

[0049]The microprocessing module 201 can be MCU, for example, has calculation and analysis functions, can obtain the data of the positioning module 202, the inertial me...

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Abstract

The invention discloses a road deviation monitoring method. The method comprises the following steps: acquiring the driving state data of an automobile through a positioning module; comparing the driving state data with road data in a high-precision electronic map, and determining a road point optimally matched with a current position point in the driving road of the automobile; acquiring steering wheel angle data; determining the predication locus of the automobile through combining the internal and external steering ratio factor and the front and rear wheel base of the automobile according to the steering wheel angle data; predicating the predication position point of the automobile in the predication locus after driving a preset distance; determining a predication road point optimally matched with the predication position point in the road of the high-precision electronic map; and determining whether the automobile deviates from the road or not according to exceeding of a difference between a first deviation and a second deviation of a preset threshold or not. Compared with traditional technologies, the road deviation detection method adopting the above technical scheme is no longer dependent on an image visual technology in order to avoid light and other environment fluencies and improve the accuracy of detection and early warning.

Description

technical field [0001] The invention relates to the technical field of vehicle electronics, in particular to a road deviation detection method. Background technique [0002] The development of the automobile industry has brought great convenience to people's travel. In the process of automobile popularization, how to improve the driving safety of automobiles is an eternal theme in the development of automobile industry. [0003] In the process of driving, there is a type of safety risk that the driver deviates from the planned driving route due to various reasons, and crashes into a vehicle driving next to him or an object on the roadside, thereby causing an accident. Therefore, the on-board electronic system integrated in the car should have the function of detecting whether the car deviates from the road. At present, there are already some electronic systems with this function, mainly based on image vision technology. For example, the camera installed in front of the ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/36B60W40/06B60W30/12
CPCB60W30/12B60W40/06G01C21/3697
Inventor 杜孙正
Owner HUIZHOU DESAY SV AUTOMOTIVE
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