多声路时差法在牛栏江—滇池补水工程流量自动监测中的应用  

Application of multipath ultrasonic transit-time method to automatic flow monitoring of Niulan River to Dianchi Lake Water Diversion Project

作　　者：刘正伟[1] 张丽花[1] 

机构地区：[1]云南省水文水资源局昆明分局,云南昆明650051

出　　处：《水利水电技术》2016年第12期96-99,共4页Water Resources and Hydropower Engineering

摘　　要：为解决牛栏江—滇池补水工程调水水量在线监测问题,依据超声波时差法的方法原理,结合牛栏江—滇池补水工程调水末端测验断面水文特性,采用多声路超声波传感器等设备实现前端数据采集,经超声波时差法流量模型计算实时流量,再通过GPRS信道传送到中心站,对数据进行分析处理、存储、转录、发布,实现WEB远程实时流量、工作状态等查询功能。经两年多的运行,系统正常稳定,其监测精度满足一类精度站要求,可为河渠人工规则断面流量自动监测提供参考。In order to solve the problem from the on-line monitoring of the amount of the diverted water from Niulanjiang River to Dianchi Lake Water Supplement Project, the front data acquisition is realized with the equipment of the multi-path ultrasonic sensor, etc. in combination with the hydrological characteristics of the end measuring cross-section of the supplement project in accordance with the principle of the multipath ultrasonic transit-time method, while the real-time flowrate is calculated through the muhipath ultrasonic transit-time method-based flow model and then transmitted to the central station through GPRS channel, thus the inquiry functions of WEB remote real-time flowrate, operation condition, etc. are realized through analyzing, process- ing, storing, transcripting, publishing the data concerned. Through the operation for over two years, the system is normal and stable with the monitoring accuracy that can meet the requirement for the station within the accuracy of Class I, which provides a reference for the automatic flow monitoring of the artificial regular section of river or canal.

关 键 词：多声路时差法 流量 自动监测 牛栏江——滇池调水工程 

分 类 号：TV698.1[水利工程—水利水电工程]