Machine-vision-based parking vehicle speed detection system

Abstract

The invention relates to a machine-vision-based parking vehicle speed detection system. The system comprises a machine vision collection block, an image processing module, a vehicle speed sensor, a master control module and an execution module. The machine vision collection module is utilized for collecting real-time image sequences of a road surface in the parking process, the collected image sequences are processed through the image processing module, the real-time vehicle speed and parking environment characteristic information are worked out according to the processed image sequences, the master control module compares and analyzes the real-time parking vehicle speed calculated through the image processing module and the vehicle speed measured by the vehicle speed sensor for calculating the slip rate, and meanwhile feedback control is carried out on the machine vision collection module. The execution module accurately controls the steering wheel rotating angle parking speed according to the vehicle speed and the slip rate. The machine-vision-based parking vehicle speed detection system is low in cost, accurate in steering, high in reliability and capable of being used in the severe parking environment, the automatic vehicle parking varieties are increased, and the parking energy consumption is lowered.

Description

technical field [0001] The invention relates to the technical field of automatic parking, in particular to a machine vision-based parking vehicle speed detection system. Background technique [0002] With the advancement of modern technology and the development of science and technology, the application of automatic parking technology is becoming more and more common, but there are still many problems in the current automatic parking technology. For example, the intelligent level of automatic parking technology is not high; automatic parking can only be used when the parking environment is good, and different degrees of tire slippage will occur during automatic parking on bad roads and weather, resulting in unsatisfactory parking; traditional It is difficult to measure the accurate actual driving speed by the speed measurement method, and the distorted speed will be transmitted to the automatic parking system, which will directly affect the quality of parking and cause the p...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of unsatisfactory parking, low energy utilization rate, and insufficient intelligence of vehicles equipped with automatic parking systems on bad roads and weather, the present invention designs a parking speed detection system based on machine vision, which can be realized in Under bad road or bad weather conditions, real-time detection of vehicle speed and tire slippage in parking state, adaptive control of vehicle speed and constant speed control, in order to improve the quality and intelligence of parking

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