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作 者:栗克国[1] 孟祥杰[1] 李志飞 张璇 LI Keguo;MENG Xiangjie;LI Zhifei;ZHANG Xuan(Tianjin Research Institute of Water Transport Engineering,Tianjin 300456,China;Tianjin Survey and Design Institute for Water Transport Engineering,Tianjin 300456,China)
机构地区:[1]交通运输部天津水运工程科学研究院,天津300456 [2]天津水运工程勘察设计院,天津300456
出 处:《人民黄河》2018年第7期150-156,共7页Yellow River
基 金:中央级公益性科研院所基本科研业务费专项(TKS110210)
摘 要:针对引黄灌区缺少适用面广、使用方便的量水系统的问题,提出了一种轨道式灌区明渠量水方法。结合PLC自动化技术、计算机及无线数据传输技术,通过系统集成的方法,研制了包括渠道断面自动测流车和远程控制管理软件的轨道式渠道断面自动测流系统。该系统可测量水位、水深、分层流速等多个参数,通过内置模型自动计算断面流量,使用GPRS无线网络将测量数据上传到控制软件,同时具备自主充电、自动启闭测流房卷帘门等功能,实现了真正意义上的无人值守和全自动测量。经在部分引黄灌区渠道比测试验,该系统流量测量结果与流速仪精测法的测量结果相比,误差在2%以下,满足灌溉渠道系统量水规范的要求。与传统的明渠量水系统相比,该系统具有效率高、适用性强、精度高等特点。In consideration of the fact that there lacked a reasonable system suitable for wide application in flux measurement for considerablelateral canals and ditches, a new automatic flow measuring method based on track in open channel was put forward. On the foundation of PLC automation technology, computer and wireless data transmission technology, system integration technology, an automatic flow measuring system for open channel section was developed, including automatic flow measuring vehicle for open channel section and remote control management software. The system could measure water level, water depth, stratified flow velocity and so on. Mathematical models were built into the vehicle, which could calculate flow for open channel section and used GPRS wireless network to upload measurement data to control software. At the same time the vehicle provided multiple functions such as self charging, automatic opening and closing rolling shutter door and so on. It realized unattended operation and full-automatic measurement. Through comparative test with precision measuring method use propeller current meter in partial Yellow River irrigation area, the relative error of the measured data by the method is within 2%, meeting the requirements of the specification. Comparing with the traditional system, it has the characteristics of more efficient, strong applicability and high-precision.
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