Overhead size binocular panoramic visual inspection system for commercial automobile

Abstract

The invention discloses an overhead size binocular panoramic visual inspection system for a commercial automobile and aims to solve the problem that image collection and binocular visual measurement of a large-size commercial automobile in the length direction of the whole automobile can not be achieved. The system comprises a support rod (1), a box body (2), a right camera holder (3), a right convex lens seat (4), a right optical filter seat (5), a demarcation device holder (6), a right camera (7), a demarcation device (8), a right convex lens (9), a right optical filter (10), a left convex lens seat (11), a left convex lens (12), a left camera holder (13), a left optical filter seat (14), a left optical filter (15) and a left camera (16). The design provides a non-contact measuring system which achieves measurement in various directions of the three-dimensional space through automatic collection of effective light stripe images with a binocular device.

Description

technical field [0001] The invention relates to a detection device in the field of the automobile industry, more specifically, it relates to a top-mounted binocular panoramic vision detection system for commercial vehicles. Background technique [0002] In order to ensure the safe driving of automobiles, the measurement of vehicle dimensions is one of the main inspection items in the field of automobile inspection. At present, the measurement of vehicle size is mainly based on manual meter measurement, which has low efficiency, poor accuracy, and high labor intensity for staff. The method of collecting car images and then measuring the size of the whole vehicle solves the above technical bottlenecks. However, due to the large size of the commercial vehicles in the longitudinal direction, the camera lens cannot collect all the images of the whole vehicle within the scope of the inspection line workshop due to the limited viewing angle. It can be measured by means of image st...

AI Technical Summary

Problems solved by technology

At present, the measurement of vehicle size is mainly based on manual meter measurement, which has low efficiency, poor accuracy, and high labor intensity for the staff.

The method of collecting car images and then measuring the size of the whole vehicle solves the above technical bottlenecks. However, due to the large size of the commercial vehicles in the longitudinal direction, the camera lens cannot collect all the images of the whole vehicle within the scope of the inspection line workshop due to the limited viewing angle. It can be measured by image stitching, but the measurement accuracy of image stitching is low, it takes a long time, and it cannot adapt to the detection beat of the detection line

In addition, the existing visual distribution uses a horizontal camera to collect a single image. On the one hand, a single image cannot obtain information on the three-dimensional scale direction. On the other hand, due to the limited space of the inspection workshop, the distance between the horizontal position of the camera and the operating vehicle does not exceed 1.5m , resulting in large distortion of the overall image collected at close range, and the image distortion corresponding to the position of the front and rear of the vehicle, which is critical to the measurement of vehicle length in a single image, is greatly distorted. From the perspective of improving measurement accuracy, it is necessary to use a double Therefore, the design of a top-mounted commercial vehicle-sized binocular panoramic vision inspection system is of great significance to the technological progress of the automotive industry inspection field.

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