A positioning method and system for an autonomous vehicle
An automatic driving and positioning method technology, which is applied in satellite radio beacon positioning systems, radio wave measurement systems, instruments, etc., can solve problems such as satellite signals are easily blocked, large positioning errors, and potential safety hazards
Active Publication Date: 2021-09-14
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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[0004] The invention provides a positioning method and system for an automatic driving vehicle, which solves the problem that the existing automatic driving vehicle may have large positioning errors and cause potential safety hazards when satellite signals are easily blocked, and can improve the positioning accuracy of the automatic driving vehicle and security
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[0034] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.
[0035] In view of the fact that current self-driving cars rely on vehicle positioning, if the vehicle is in a situation where satellite positioning signals are susceptible to interference, there may be a safety problem in automatic driving caused by positioning errors. The invention provides a positioning method and system for a self-driving car. By collecting traffic environment information around the vehicle and calculating the theoretical positioning coordinates of the vehicle through high-precision maps, the theoretical positioning coordinates of the vehicle are then compared with the satellite positioning coordinates. If the deviation is greater than the set threshold , the positioning data is corrected. It...
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The present invention provides a positioning method and system for an automatic driving vehicle. The method includes: collecting traffic environment information around the vehicle. The curvature of the road and the distance between the vehicle and the surrounding reference objects; obtain the high-precision map of the vehicle position, and calculate the theoretical positioning coordinates of the vehicle according to the traffic environment information and the high-precision map; obtain the satellite positioning of the vehicle through the navigation and positioning system If the difference between the satellite positioning coordinates and the theoretical positioning coordinates is greater than the first set threshold, the vehicle positioning data is corrected by manual input. The invention can improve the positioning accuracy and safety of the self-driving car.
Description
technical field [0001] The invention relates to the technical field of automatic driving of automobiles, in particular to a positioning method and system for automatic driving automobiles. Background technique [0002] With the advancement of the times and the development of technology, self-driving cars will become a reality in the near future. The arrival of self-driving cars not only provides great convenience to our lives, but also Sensors can greatly reduce the traffic accident rate. [0003] High-precision maps and positioning systems are important components of future self-driving cars. High-precision maps and positioning systems can not only provide passengers with efficient route planning solutions, but also provide guarantees for the safe driving of self-driving vehicles. At present, the high-precision positioning system used for autonomous driving prototype vehicles is the combined positioning of global satellite navigation and positioning system (GNSS) + inertia...
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IPC IPC(8): G01S19/42G01S19/40
CPCG01S19/40G01S19/42
Inventor 张雷张一营徐毅林吴琼时利袁宁徐春梅岳丽娇曾伟
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD