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Method for Dynamically Detecting the Intensity of Automobile High Beam

A dynamic detection, high beam technology, applied in the direction of testing optical performance, etc., can solve the problems of unqualified high beam intensity, small light intensity value, irregular high beam illuminance or brightness symmetry, etc.

Active Publication Date: 2016-07-20
WM MOTOR TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The prior art measures the light intensity of the high beam of the car, which is to use dynamic scanning to find the illuminance or luminance of the upper and lower symmetrical points and the left and right symmetrical points of the specified distance. The illuminance or luminance of some high beams at short distances is not standardized and symmetrical, or the registration mistakenly detects the four-lamp high-beam system as a two-lamp system, or does not cover the adjacent high beam when the four-lamp system high-beam light intensity is detected. lamp, thus changing the distribution of the illuminance or luminance of the detected high-beam lights, resulting in the failure to detect the maximum light intensity of the high-beam lights at the symmetrical static position, and the measured light intensity value is too small, resulting in the error that the high-beam light intensity of the car is unqualified error detection

Method used

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Examples

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Embodiment Construction

[0008] Taking the detection of the high beam light intensity of a vehicle by a fully automatic light instrument at a vehicle inspection station as an example, the specific implementation of the method for dynamically detecting the high beam light intensity of a vehicle is described.

[0009] After the vehicle stops at the detection position of the headlights, turn on the high beams, the automatic light meter moves in parallel, the light metering screen moves vertically, and the dynamic scanning automatically searches for a stable state where the illuminance or luminance of the symmetrical point of the high beams is equal. Measure the instantaneous light intensity value during the scanning process. When the steady state is reached, compare and evaluate the instantaneous maximum light intensity value with the limit value. Light intensity detection; when the instantaneous maximum light intensity value is unqualified, the dynamic scanning range can be expanded, and the other specif...

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Abstract

The method of dynamic detection of the light intensity of the high beam of the car is that the lighting instrument dynamically scans and measures the instantaneous maximum light intensity value of the high beam of the car, and measures each instantaneous value during the dynamic scanning to automatically find the stable state of the symmetrical point illuminance or luminance of the high beam. When the light intensity value reaches a stable state, compare and evaluate the instantaneous maximum light intensity value with the limit value. When the light intensity value is unqualified, the dynamic scanning range can be expanded, and the instantaneous light intensity value can be detected by scanning to other specified areas, and the maximum instantaneous light intensity value measured by all dynamic scanning can be recorded, and compared and evaluated with the limit value.

Description

technical field [0001] The method for dynamically detecting the light intensity of the high beam of an automobile is a method for measuring the maximum light intensity value of the high beam of the automobile through dynamic scanning of an automobile light detector, and belongs to the technical field of automobile performance detection. Background technique [0002] The prior art measures the light intensity of the high beam of the car, which is to use dynamic scanning to find the illuminance or luminance of the upper and lower symmetrical points and the left and right symmetrical points of the specified distance. The illuminance or luminance of some high beams at short distances is not standardized and symmetrical, or the registration mistakenly detects the four-lamp high-beam system as a two-lamp system, or does not cover the adjacent high beam when the four-lamp system high-beam light intensity is detected. lamp, thus changing the distribution of the illuminance or lumina...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
Inventor 吴明
Owner WM MOTOR TECH GRP CO LTD