无通信接口数字多用表智能化计量装置*

摘要

利用CCD图像处理技术和数据库技术，探讨无通信接口数字多用表计量智能化技术改造的方案。通过GPIB/USB数字接口板搭建起计算机与多功能校准仪通信的平台。通过网络摄像机，非接触式读取被检数字多用表显示屏幕上的示值信息，并利用模数转换技术转化为数字信息，与标准值进行比对，自动判断计量结果。同时，对客户、标准器和被检表的信息进行数据库管理，自动生成原始记录和相关的检定报告。%Based on CCD image processing and database technology, it is discussed that non-communication interface digital multimeter is intelligently transformed. Via GPIB/USB digital interface board erected in the computer communicate with the multifunction calibration source platform, network cameras, non-communication digital multimeter reads were seized on the display screen showing the value of information, and the use of analog-digital conversion technology into digital information for comparison with the standard value, automatically determine the measurement result. Meanwhile, customer, calibration source, and non-communication interface digital multimeter are seized table information for database management, automatic generation of original records and associated test reports.