基于机器视觉技术的水表在线检定系统研究

doi:10.3969/j.issn.1000-1158.2017.04.19

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摘要设计了一套基于机器视觉技术的水表在线检定系统。使用模板匹配技术定位梅花针,分别对基准表和各待检表梅花针转过的齿数同时计数,当基准表计数到达设定值时同时停止计数,计算待检表误差,判断是否合格。现场试验表明,该方法比现有的激光反射计数法检定精度更高,解决了激光反射计数法无法检定梅花针上有气泡的湿式水表的问题。

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	陈硕
	刘丰
	唐旭晟
	骆腾斌

关键词 ：计量学, 水表检定, 机器视觉, 模板匹配

Abstract：An on-line water-meter verification system based on computer vision technology is introduced. The template matching technology is used to locate the plum needle, and the teeth values of stand water-meter and the under-verified water-meters are counted while verifying. When the stand water-meter count to the set value, the system can automatically stop the counting and calculate the error of each under-verified water-meter and judge that the under-verified water-meter is qualified or not by the error. Field experimental results show that the system has a higher accuracy and works well on wet-dial water meter than that using laser reflection measurement method.

Key words： metrology water-mater verification computer vision template matching

收稿日期: 2015-07-20 发布日期: 2017-06-16

PACS:

TB937

通讯作者: 刘丰 E-mail: 651586163@qq.com

作者简介: 陈硕(1964-),男,福建福州人,福州大学教授,博士,主要从事测试技术、机电一体化技术方面的研究。shuochen@fzu.edu.cn

引用本文:

陈硕,刘丰,唐旭晟,骆腾斌. 基于机器视觉技术的水表在线检定系统研究[J]. 计量学报, 2017, 38(4): 473-476.
CHEN Shuo,LIU Feng,TANG Xu-sheng,LUO Teng-bin. Research on On-line Water-meter Verification System Based on Computer Vision Technology. Acta Metrologica Sinica, 2017, 38(4): 473-476.

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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2017.04.19 或 http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2017/V38/I4/473