基于图像识别的指针式温控仪智能检定系统

Automatic calibration system of pointer-type temperature controller based on image recognition technology

针对指针式温控仪人工检定效率、精度低的问题,首次设计了一种融合机械设计技术、图像识别技术、数据采集技术、运动控制技术等多种应用技术的温控仪智能检定系统。并详细介绍了系统的整体设计方案、机械结构、硬件结构及软件结构4部分内容,最后用实例验证该系统可自动实现温控仪指针位置的图像识别,远传信号采集,接点切换值(上切值、下切值)的自动检测以及自动绘制温升曲线等功能,真正实现温控仪的全自动检定。

According to the problem about human observation affects the efficiency and accuracy of calibration, in this pa- per initial design an automatic calibration system integration of mechanical design, image recognition, data collection, motion control technology and so on. At the same time introduce the overall design scheme, mechanical structure, hard- ware structure, software structure of the automatic calibration system in detailed. At last use examples verify that automatic calibration system possess the following features about image recognition of pointer position, automatic collection of remote signal, automatic detection of contact switch value and automatic draw temperature curve and so on. Achieve automatic calibration of the pointer-type temperature controller in truly.