基于图像识别的数字万用表自动测试方法  

A Digital Multimeter Automatic Testing Method based on Image Recognition

作　　者：罗政元[1] 行江[1] 陆强[1] 

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《宇航计测技术》2016年第5期28-31,共4页Journal of Astronautic Metrology and Measurement

摘　　要：传统的手持式数字万用表由于缺少通信接口,只能通过手动或半自动手动输入数据的方法完成检定或校准,效率低下且差错率高。本文提供一种利用摄像头自动拍摄测量显示屏,并基于图像识别算法进行自动测试的数字式万用表校准系统,其实现数字式万用表测量数据的自动读取识别导入,代替人眼读取万用表测量数据,提高校准的准确率和工作效率。Due to the lack of communication interface, the traditional hand-held digital muhimeter （DMM） can only use manual or semi-automatic method to complete a verification or calibration, which has low efficiency and high error rate. This paper provides a newly developed DMM automatic testing method, it uses a camera to automatically capture the DMM screen which has measurement information, and recognizes the result with an image recognition algorithm, so this method can automatically read, rec- ognize and import measurement results to a computer instead of human, therefor the calibration accuracy and efficiency has been improved.

关 键 词：自动测试 图像识别 图像分割 仪器控制 

分 类 号：TP391.43[自动化与计算机技术—计算机应用技术]