河工模型量测控制系统设计与应用-以赣江下游尾闾整治工程为例

Design and implementation of measurement-control system in physical model: case of comprehensive renovation project of lower reaches of Ganjiang River

赣江下游尾闾综合整治工程物理模型建于室外,且模拟河流多级分叉,对整个模型测控系统运行的可靠性以及室外的防雷性能提出了更高的要求。在分析现场情况的基础上,提出了一套较为先进的模型量测控制系统总体设计方案,控制系统由平水塔供水系统、流量控制系统、水位与流速测量系统、尾门控制系统、防雷接地系统、地形测量系统等量测子系统组成。简要介绍了各测量子系统工作原理,设计方案及实际应用情况,系统应用现代网络技术及高性能自动化测量仪器,可实现模型试验中各种参数的实时采集、控制和数据处理。试验结果表明,该测控系统可满足模型试验的测控需求。

The comprehensive renovation project model of lower reaches of Ganjiang River was built in outdoor environment andcharacterized as multi - stage bifurcation, so it puts forward higher requirements for the measurement - control system in terms of operation reliability and lightning protection. On the basis of field situation analysis, a set of more advanced design scheme for the model measurement - control system was presented. The measurement - control system is composed of water supplying system of flat water tower, flow control system, water level and flow velocity measurement system, tail gate control system, lightning pro-tection and grounding system, topographic survey system and so on. This paper briefly introduces the working principle, designscheme and application situation of each sub - system. The system uses modern network technology and high prformance auto-matic measuring instruments,which can realize real - time data acquisition, control and data processing of various parameters in the model test. The test results show that the measurement - control system can meet the requirement of the model test of compre-hensive renovation project of lower reaches of Ganjiang River.