基于机器视觉的前照灯仪校准器检定装置  

Calibrator verification equipment for headlamp tester based on machine vision

作　　者：黄振宇[1] 卢德润[1] 方强[1] 

机构地区：[1]广东省计量科学研究院,广东广州510405

出　　处：《中国测试》2009年第5期21-23,共3页China Measurement & Test

基　　金：国家质检总局科技项目(2007QK238)

摘　　要：目前对汽车前照灯仪校准器的人工检定方法存在着检定效率低、测量不确定度大的缺点,而利用机器视觉技术改造后的检定装置则存在着CCD芯片本身无法进行量值溯源的原理缺陷。建立了一套结合机器视觉技术与传统检定方法的检定装置,根据机器视觉分析得到校准器光型特征,利用转台测量光轴角参数及照度计测量发光强度参数,可以实现高准确度、高效率的检定。实验结果表明,该装置的性能完全满足检定前照灯仪校准器的要求。At present, the manual verification method for headlamp tester calibrator has the defects of low efficiency and large uncertainty, and the devices updated with machine vision technology are limited by the basic problem of CCD＇s value traceability. Therefore, it introduced the new type verification equipment which combined the machine vision technology and the traditional verification method. Based on the illumination characteristics extracted by machine vision, it used a rotary table to measure the optical angle and an illumination photometer to measure the intensity, so it could achieve high accuracy and high efficiency. Experimental results show that the equipment is capable for verifying calibrator of headlamp tester.

关 键 词：机器视觉 前照灯仪校准器 光轴角 发光强度 CCD器件 

分 类 号：U463.651[机械工程—车辆工程] TM930.1[交通运输工程—载运工具运用工程]