A vehicle self-positioning method and system based on an auxiliary positioning line

An assisted positioning and self-positioning technology, applied in the directions of instruments, character and pattern recognition, navigation calculation tools, etc., can solve the problems of difficult universal use, high cost, positioning information error, etc., and achieve the effect of ensuring accuracy and low cost

Pending Publication Date: 2019-05-28
武汉市路畅智能科技有限公司 +1
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Problems solved by technology

Since this type of system itself has a certain degree of error, the output positioning information also has a certain error.
The self-driving vehicle positioning solution also integrates Global Navigation Satellite System (Global Navigation Satellite System, GNSS), inertial navigation, vision, lidar, and high-precision map databases, which can achieve high accuracy, but the cost is high and it is difficult to popularize it.

Method used

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  • A vehicle self-positioning method and system based on an auxiliary positioning line
  • A vehicle self-positioning method and system based on an auxiliary positioning line
  • A vehicle self-positioning method and system based on an auxiliary positioning line

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[0055] In order to further illustrate the features of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. The accompanying drawings are for reference and description only, and are not intended to limit the protection scope of the present invention.

[0056] Such as figure 1 As shown, this embodiment discloses a vehicle self-positioning method based on auxiliary positioning lines, including the following steps S1 to S3:

[0057] S1. Add auxiliary positioning lines on the road surface with complete lane line information, wherein: the auxiliary positioning lines are the physical line lengths that have a mapping relationship with the code element sequence;

[0058] It should be noted that the lane lines include but are not limited to white solid lines, white dashed lines, double yellow lines and the like. The mapping relationship between each code element in the code element sequence and the physical line ...

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Abstract

The invention discloses a vehicle self-positioning method and system based on an auxiliary positioning line, and belongs to the technical field of automatic driving. The method comprises the steps ofadding the auxiliary positioning line on a road surface with complete lane line information, the auxiliary positioning line being a physical line length having a mapping relationship with a code element sequence; acquiring image information of lane lines and auxiliary positioning lines on the road surface; and identifying the images of the lane line and the auxiliary positioning line, and positioning the position of the vehicle in the road according to the identification result. The vision processing method is used for processing the image containing the auxiliary positioning line, the accuracy of vehicle self-positioning is guaranteed, meanwhile, only the positioning auxiliary line needs to be additionally arranged on the road surface, and the cost is lower.

Description

technical field [0001] The invention relates to the technical field of automatic driving, in particular to a vehicle self-positioning method and system based on auxiliary positioning lines. Background technique [0002] In the field of automotive automatic driving technology, the positioning of vehicles has always been a key technology for in-depth research in the industry. The existing automatic driving vehicle positioning system can provide all kinds of users with the help of global positioning system (GPS), Beidou satellite navigation system, etc. Provide positioning, navigation and other services. Since this type of system itself has a certain degree of error, the output positioning information also has a certain error. The self-driving vehicle positioning solution also integrates Global Navigation Satellite System (Global Navigation Satellite System, GNSS), inertial navigation, vision, lidar, and high-precision map databases, which can achieve high accuracy, but the co...

Claims

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Application Information

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IPC IPC(8): G06K9/00G01C21/20
Inventor 张阳胡锦敏尤虎周玉栋陈向成罗杰朱彬张灿明刘亚
Owner 武汉市路畅智能科技有限公司
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