摘要
闸门开度测量是水工闸门监控最基本的指标之一,传统的闸门开度测量方法测量精度低、测量难度大。为解决测量闸门开度难题,本文研究了基于条码尺图像分析的闸门开度测量方法,针对三周期等间距条码尺编码的缺陷,提出了一种新的编码解码方式进行改进,并建立了一套完整的闸门开度测量检测系统。模拟闸门实时开度试验结果表明,本系统能够实时全自动测量闸门开度信息,测量精度高,稳定性强,表明改进后方法能够取得较好的闸门开度测量效果,为实际闸门开度工程测量提供了有效的解决思路。
The gate opening measurement is one of the basic indicators of hydraulic gate monitoring. The traditional gate opening measurement method has low measurement accuracy and large measurement difficulty.To solve the problem of measuring gate opening, this paper researches the measurement methods of image analysis based on bar code.Aiming at the limitation of three cycle spacing bar code eneoding,a new coding and decoding method is proposed. Finally we establish a complete set of gate opening measuring and monitoring system.The results show that this system can real-time automatic measure gate opening,whose accuracy is high and stability is strong. And the improved coding and decoding method of the bar eode image analysis method can obtain better gate opening measurement results, provide effective solutions for the actual engineering measuring gate opening.
出处
《测绘通报》
CSCD
北大核心
2018年第1期92-96,共5页
Bulletin of Surveying and Mapping
基金
国家重点研发计划(2016YFB0502102)
国家自然科学基金(4P111347)
现代工程测量国家测绘地理信息局重点实验室开放基金(TJES1302)
关键词
闸门开度
条码尺
图像分析
编码与解码
识别与定位
gate opening
bar code
image analysis
encoding and decoding
recognition and location
