Method and system for assisting automatic parking of unmanned vehicle based on GPS

Abstract

The invention relates to a method and system for assisting automatic parking of an unmanned vehicle based on GPS, which are suitable for side direction parking, the method comprise the following stepsof: acquiring GPS position information of a parking space at a target area; obtaining minimum turning radius information and brake distance information of the vehicle; dotting according to the GPS position information, marking the middle point of the parking space entrance according to the parking space dotting information; setting a turning point and a speed reduction point according to the middle point of the parking space entrance, the minimum turning radius information and the brake distance information; and generating an optimal parking driving track according to the preset turning angle, the turning point and the deceleration point. By setting auxiliary points by using the GPS, the position, the angle and the speed, when the vehicle enters the parking space, are guided to appropriate values, so that the optimal parking driving track is generated, the uncertainty is reduced, and the parking accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of automatic parking, in particular to a GPS-based automatic parking assistance method and system for unmanned vehicles. Background technique [0002] Automatic parking is to automatically park in place without manual intervention. The automatic parking system can realize the automatic parking of motor vehicles. It is especially suitable for unmanned unmanned vehicles. Unmanned vehicles are fully automatic driving, and a complete set is needed. , Accurate automatic parking system. A complete automatic parking system includes a parking space detection module, a trajectory generation module and a steering control module. Among them, the parking space detection module is one of the core technologies, which is related to the success or failure of the entire automatic parking system. [0003] The detection technologies used by the current parking space detection module are roughly divided into the following typ...

AI Technical Summary

Problems solved by technology

Each of these technologies has its own advantages and disadvantages: although the reversing radar technology can accurately judge the distance, it cannot perceive the ditch behind the car, protruding steel bars or bamboo poles and other slender rods, and most of them rely on the sides of the free parking spaces vehicles or obstacles; the rear view camera technology is intuitive and real, but it cannot perceive the distance information, cannot provide parking space information, and cannot guide the driver; vision-based parking space detection technology often has visual blind spots or is blocked by obstacles. Inability to accurately detect stop lines

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