Electronic screen method full-automatic motor vehicle headlight detector and detecting method

Abstract

The invention provides an electronic screen method full-automatic motor vehicle headlight detector and a detecting method and relates to the technical field of motor vehicle survey technology. The electronic screen method full-automatic motor vehicle headlight detector and the detecting method comprise a detector. A walking mechanism which is capable of driving the detector to move along the horizontal direction is arranged on the bottom of the detector. A simulation front electronic screen wall is arranged in front of the detector. A simulation back electronic screen wall is arranged at the back of the detector. The detector is perpendicular to a driving direction of a surveyed motor vehicle. Light beam deviation of the motor vehicle headlight is confirmed through a method of drawing a simulated screen cross curve on the simulation front electronic screen wall and the simulation back electronic screen wall. Light intensity and light spots on the motor vehicle headlight of the simulation front electronic screen wall and the simulation back electronic screen wall are collected and analyzed through the detector. Far and near light intensity of the motor vehicle headlight, passing light light and shade cut-off points, light beam deviation, height of light, a left and right symmetrical difference on the periphery of a car body are confirmed. The electronic screen method full-automatic motor vehicle headlight detector and the detecting method are suitable for the survey of the motor vehicle headlight of a motor vehicle check station, a motor vehicle producing factory and a motor vehicle light research unit. The detector system is stable, reliable and simple in operation.

Description

technical field [0001] The invention relates to the technical field of motor vehicle measurement, in particular to a fully automatic motor vehicle headlamp detector and detection method using an electronic screen method. An instrument for measuring headlights of motor vehicles. Background technique [0002] With the development of electronic technology, the structural characteristics and measurement methods of motor vehicle headlamp testers have also been improved. At present, domestic and foreign mainstream motor vehicle headlamp testers use CCD cameras for measurement, mainly using geometric optics. The corresponding relationship between the object and the image makes the large-scale light intensity distribution in the distance become a small measurable real image. Using the area array CCD as the image sensor, the light intensity distribution state on the entire plane can be obtained at one time. The basic method is through two or three A camera collects the light spots, ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an electronic screen method for measuring fully automatic motor vehicle headlight detector and detection method, which absorbs the basic principle of manual screen measurement method for measuring motor vehicle headlights, and electronically conducts the manual screen measurement method. The linear array CCD and linear array photosensitive sensor are installed to collect the light intensity and light spot of the motor vehicle headlight, which overcomes the problem that the camera CCD detector cannot receive the light spot of the motor vehicle headlight in a large area, and the light receiving box must be used to find the light spot Disadvantages, improved motor vehicle headlight measurement speed, precision and accuracy

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