Rapid detection method for flaws on whole surface of roller of safety belt

Abstract

The invention belongs to the technical field of surface detection, and particularly relates to a rapid detection method for flaws on the whole surface of a safety belt roller, which specifically comprises the following steps of: 1, projecting laser onto a measurement surface of a to-be-detected roller by using a dual-channel linear light source as an illumination light source and a linear array camera as an imaging element, so that the defects of pits, bulges, scratches and the like are highlighted, wherein the linear array camera is used for collecting laser projection images; 2, carrying out algorithm processing on the image acquired in the step 1, searching a suspicious area, segmenting the image of the suspicious area, and reporting the segmented image of the suspicious area; and 3, rotating the roller to adjust the area in the measurement surface, and repeating the operation until the measurement of all the side surfaces of the roller is completed. The defects in the prior art are overcome, the defects of the roller surface are quickly found by adopting a mode of matching optical detection with algorithm processing, the defects of manual detection are overcome, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of surface detection, and in particular relates to a rapid detection method for defects on the entire surface of a safety belt roller. Background technique [0002] The seat belt can be stretched and retracted - when the seat belt is not tightened, the body can easily lean forward. But when the vehicle hits and the human body leans forward rapidly, the seat belt will suddenly tighten and fix the human body tightly. [0003] There is a roller in the traditional seat belt device. If the seat belt is pulled quickly, for example, in the case of a car accident, the clip inside will be taken out by the centrifugal force due to the rapid rotation of the seat belt roller, and the seat belt will be locked quickly. The person in the seat is fixed on the chair. After the shock peak has passed, or when the person can be protected by the airbag, the seat belt will be relaxed so as not to crush the person's ribs. From ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a rapid detection method for the defects of the entire surface of the seat belt roller, which overcomes the deficiencies in the prior art, adopts the method of optical detection and algorithm processing, quickly finds the defects on the surface of the roller, and solves the shortcomings of manual detection. Improve product quality

Images