Parking space detecting method and parking space detecting system

Abstract

The invention discloses a parking space detecting method and a parking space detecting system. The parking space detecting method comprises the following steps of acquiring a parking space length L3 which is detected by an ultrasonic module; acquiring a distance d which is detected by the ultrasonic module and is between a vehicle and the parking space; and acquiring an actual parking space lengthL according to a mapping relation among a parking space length L3, the distance d and the actual parking space length L; wherein the mapping relation along the parking space length L3, and the distance d and the actual parking space length L is acquired through an image acquiring mode. According to the parking space detecting method and the parking space detecting system, through adding the mapping relation between the actual parking space length and the detected parking space length based on ultrasonic wave detection, correction of the detected parking space length can be realized, thereby accurately determining a specific position of an obstacle and the particle spatial size of the parking space. Compared with a technical solution in prior art, the parking space detecting method and theparking space detecting system have an advantage of greatly improving parking space detecting accuracy.

Description

technical field [0001] The invention relates to the communication field, in particular to a parking space detection method and a parking space detection system. Background technique [0002] In automatic parking or automatic parking assistance systems (AP / APA), ultrasonic sensors on both sides of the vehicle body are generally used to detect parking spaces. The vehicle runs parallel to the space to be scanned at a constant speed. At the same time, the size of the barrier-free space is obtained by scanning, and then the parking trajectory is determined according to the size of the space, and finally the parking trajectory is executed. Since the ultrasonic probes are generally installed on both sides of the front of the car, and the detection direction is perpendicular to the vehicle body, when using the probes on both sides to scan the parking space, the ultrasonic detection beam has a horizontal angle, and the specific orientation of the obstacle and the specific space size ...

AI Technical Summary

Problems solved by technology

Since the ultrasonic probes are generally installed on both sides of the front of the vehicle, and the detection direction is perpendicular to the vehicle body, when using the probes on both sides to scan the parking space, the ultrasonic detection beam has a horizontal angle, and the specific orientation of the obstacle and the specific space size of the parking space cannot be determined.

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