Method for automatic parking speed control based on image vision

Abstract

The invention relates to a method for automatic parking speed control based on image vision. The method comprises the steps that a movement trajectory of a target parking space is calculated through collected real-time sequence images of the target parking space during vehicle movement; the movement trajectory of the target parking space and a parking path are subjected to comparability matching,and a comprehensive evaluation value is calculated; when the comprehensive evaluation value is greater than or equal to a first preset threshold value, a parking speed is unchanged, and when the comprehensive evaluation value is less than the first preset threshold value, the parking speed is adjusted according to the deviation angle change rate of a vehicle; and when the deviation angle change rate of the vehicle is greater than or equal to a second preset threshold value, the parking speed is reduced, and when the deviation angle change rate of the vehicle is less than the second preset threshold value, the parking speed is increased. According to the method for automatic parking speed control based on image vision, the movement trajectory of the target parking space and the parking pathare subjected to comparability matching, and segmentation calibration is performed on the parking speed according to the matched comprehensive evaluation value and the deviation angle change rate ofthe vehicle, so that the smoothness of the automatic parking speed control is improved, the user experience is enhanced.

Description

technical field [0001] The invention relates to the technical field of parking, in particular to a method for automatic parking speed control based on image vision. Background technique [0002] In recent years, with the rapid development of artificial intelligence technology, automobile technology has begun to develop in the direction of intelligence. The automatic parking system is an automatic driving assistance system below the L3 level of automatic driving technology, and has gradually become a hot spot in the research and development of automobile technology. The automatic parking system usually starts the system through the driver's button, and the system automatically controls the car to complete a series of operations such as steering, forward and backward, and finally realizes the function of parking and parking without the driver's intervention. As an auxiliary driving system, the automatic parking system has realized this function in many mid-to-high-end models, ...

AI Technical Summary

Problems solved by technology

At present, there are the following problems in the speed control of parking and warehousing: one, the parking speed of the vehicle is slow, and the traffic is often congested

After the parking path is planned, there will often be deviations due to the calculation error of the sensor and the influence of the tire friction coefficient during the execution process. Therefore, it is necessary to reduce the speed of the vehicle and use the tracking control method to correct the path of the vehicle in real time; Repeated forward and backward operations, uneven vehicle speed, and poor user experience

Because in the process of moving forward and backward, the body sensor will detect the front and rear obstacles, and the phenomenon of sudden stop and brake often occurs, and the user experience is extremely poor.

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