计算机与现代化 ›› 2012, Vol. 1 ›› Issue (9): 57-60.doi: 10.3969/j.issn.1006-2475.2012.09.015

• 计算机控制 • 上一篇    下一篇

基于机器视觉的温度测量系统的设计及应用

李宁,汪仁煌,刘孝峰,朱颖,李逸岳   

  1. 广东工业大学自动化学院,广东广州510090
  • 收稿日期:2012-05-02 修回日期:1900-01-01 出版日期:2012-09-21 发布日期:2012-09-21

Design and Application of Temperature Measurement System Based on Machine Vision

LI Ning, WANG Ren-huang, LIU Xiao-feng, ZHU Ying, LI Yi-yue   

  1. School of Automation, Guangdong University of Technology, Guangzhou 510090, China
  • Received:2012-05-02 Revised:1900-01-01 Online:2012-09-21 Published:2012-09-21

摘要: 针对温度控制中常用的基于铂电阻的温度采集电路设计复杂,抗干扰能力弱,铂电阻线性拟合繁琐,难以实现对温度的高精度测量等不足,本文介绍一个在VC+〖KG-*3〗+6.0平台上设计的基于机器视觉,自动读取水银温度计示数的温度测量系统。通过有效的图像处理算法,温度测量系统分辨率达到0.01℃,读数准确,工作可靠。该温度测量系统在研究大滞后大惯性温度控制实验中得到了成功的应用。

关键词: 机器视觉, 温度测量, 图像处理

Abstract: Temperature data acquisition circuit based on platinum resistance, which is constantly used in temperature control system, is complex, weak on anti-jamming capability and low measuring accuracy, and its linear fitting of platinum resistance is very troublesome. This article describes a temperature measurement system to read the mercury thermometer automatically based on machine vision, designed on VC+〖KG-*3〗+6.0 platform. By applying some effective image processing algorithms, the temperature measurement system has resolution of 0.01℃, measures accurately and workes reliably. The temperature measurement system has been successfully applied in the temperature control experiment of large time-delay and large inertia.

Key words: machine vision, temperature measurement, image processing