Front view S area detection system and method

By precisely positioning and projecting the projection and light-emitting devices, the problem of complex posture adjustment and large errors of the projection device in the S region was solved, achieving rapid and reliable improvement in detection efficiency and accuracy.

CN121720744APending Publication Date: 2026-03-24XIANGYANG DAAN AUTOMOBILE TEST CENT
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Patent Information

Application Number
CN202511993382.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In existing technologies, the relative position requirements between the S-area projection device and the vehicle to be inspected are high, the attitude adjustment takes a long time and has a large error, resulting in low detection efficiency.

Method used

The system employs a projection device and a light-emitting device. The projection device adjusts its position via a moving device and a rangefinder, while the light-emitting device adjusts the lateral, longitudinal, and vertical positions of the light source via an adjustment mechanism. This system directly projects the boundary of the S-area and obstacles onto the projection panel, and ensures precise positioning via a rangefinder and a positioning device.

Benefits of technology

It significantly improves detection efficiency, simplifies the calculation of projected area, ensures ease of operation and measurement accuracy, and makes obstacle detection in the driver's field of vision faster and more reliable.

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Abstract

The invention relates to a front visual field S area detection system and method, and relates to the technical field of finished automobiles, the front visual field S area detection system comprises a projection device which comprises a body frame provided with a projection plate; the moving device is arranged on the body frame, a distance measuring instrument is fixed to the moving device, and the moving device can move along the body frame so as to adjust the transverse position and the vertical position of the distance measuring instrument relative to the target vehicle; the light-emitting device is used for being arranged on a three-dimensional H-point device located in the target vehicle, the light-emitting device comprises an adjusting mechanism and a light source arranged on the adjusting mechanism, and the adjusting mechanism can adjust the transverse position, the longitudinal position and the vertical position of the light source relative to the target vehicle. According to the invention, the measurement efficiency can be improved, and the projection area calculation mode is simplified.
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