集线式水库大坝安全监测系统设计

The Design of Set-Wired Dam Safety Monitoring System

针对水库大坝安全监测系统的智能化程度低、稳定性差、数据传输滞后、数据丢失等缺点,提出了一种集线式水库大坝安全监测系统设计。该系统的硬件部分采用LPC2368FBD和STC12C5410AD为主控制器,将渗压采集、水位采集、雨量采集、温度采集、电压采集、数据传输、数据处理、数据发布等功能集于一体。首先,通过有线或无线传输方式将监测数据传送至大坝端服务器;再通过公网或移动的APN专网将数据传送至省大坝中心数据库;最后通过后台处理对水库大坝的运行性态做出评价并将评价结果及时发送给相应的水行政主管部门,以便他们针对可能出现的灾情做提前预防。软件部分通过定时或实时发送采集命令,控制系统进行数据采集。将本系统应用于实际水库大坝安全监测中,结果表明:在测量精度、可靠性、稳定性、实时性等方面都满足了设计要求,其频率测量精度±1%,水位测量精度±0.25%,雨量测量精度±1.5%,温度测量精度±1%,电压测量精度±1%。

This paper presents the design of set-wired dam safety monitoring system aiming at the low level of intelli- gence,poor stability,lagged data transmission, and data loss. etc in the traditional monitoring system. The hardware part of this system adopts LPC2368FBD and STC12C5410AD as its main core, which brings such functions as osmotic pressure collection, water level collection, rain collection, temperature measurement, voltage acquisition, data transmission, data treatment and data issuance together. Firstly, the monitoring data is transmitted and sent to the dam＇ s server by wire or wireless ; then transferred data through public network or private-network APN to central database of the dam of the province. Finally, through background processing, the assessment of dam operation state is made and the evaluation results are timely delivered to the appropriate administrative departments of water resources so that they can do for the possible disaster prevention in advance. The software part of the system sends collecting command regularly or at real time and it can control the system for data acquisition. The system has been used for actual dam safety monitoring, and the results show that ： the measurement accuracy, reliability, stability, and the ex- periments in real time of the program all meet the design requirement ,with the frequency measurement accuracy of ± 1%, the water level measurement accuracy of ±0. 25 %, the rainfall measurement accuracy of ± 1.5 %, the temperature measurement accuracy of ± 1%, and the voltage measurement accuracy of ±1%.