摘要
随着汽车行业的发展,全液晶汽车仪表应用越来越广泛,但由于其显示内容丰富,图形界面复杂,利用传统人工测试耗时长,测试结果依赖人员的主观判断,精度难以保证。为确保全液晶仪表显示的正确性和稳定性,本文提出了一种全液晶汽车仪表自动测试方法,利用OpenCV和CANalyzer搭建了一套液晶仪表自动测试系统,对全液晶仪表进行指针精度测试和警告灯测试,该测试方法检测指针偏转精度约为1.92°,警告灯点灯和熄灯异常检出率约为97.7%。此方法比人眼观察更为准确,精度更高,同时减少了测试人员的工作量,降低了仪表的开发成本,通用性强。
As motor industry is developing rapidly,the TFT(Thin-Film technology)meter has been widely used.However,due to the complex display contents,it is hard to guarantee the test accuracy by using the traditional test method.Therefore,an evaluation method based on OpenCV and CANalyzer has been proposed and a test platform has been built to ensure the meter display accuracy.The detection accuracy results of the pointer deflection angle is 1.92°.Moreover,it can also detect the abnormal display of warning lamp and the accuracy rate is about 97.7%.On one hand,this method can be more reliable than the subjective evaluation method.On the other hand,it can reduce the cost of research and development by improving the test efficiency.
作者
杨孛
陈国安
刘兵
YAN G Bei;CHEN Guo-an;LIU Bing(Dongfeng Nissan Passenger Vehicle Company Passenger Vehicle Technical Center,Guangzhou 510082,China)
出处
《汽车科技》
2019年第1期39-45,33,共8页
Auto Sci-Tech
作者简介
杨孛,毕业于巾社学机电学院,机电一体化,硕士学历。现就职于东风日产技术中心智联开发部,任IT系统实验工程师,从事仪表实验开发、娱乐影音系统实验开发相关工作。已发表论文《基于模糊理论的汽车开关操作性能评价方法》。
