The system is mainly used for river model and flume experiment, which can control the flow synchronously and automatically, measure data such as flow, velocity, water level and sediment transport rate, and complete clear water or sediment transport experiment and constant or unsteady flow experiment. The flow process is controlled by frequency converter and electromagnetic flowmeter in closed loop or open loop. The water level along the way is measured synchronously by high-precision ultrasonic water level gauge, and the three-dimensional velocity is collected by ADV and other equipment and synchronized with the system. The bed load sediment transport rate is measured synchronously by high-precision electronic scale or image recognition system (BMSI), and the suspended load sediment transport rate is measured by photoelectric muddy water sediment transport instrument. All control and measuring equipment are controlled by programs and work synchronously to meet the experimental requirements of constant and unsteady flow. The system has the characteristics of high precision, good expansibility, wide adaptability, stability and power saving.
2. Automatic Water Level Measurement System (AWMS)
The AWMS water level measurement system for commercial water uses multiple high-precision ultrasonic probes to synchronously collect water level changes, which has the advantages of fast acquisition frequency, high measurement accuracy, stable performance, simple installation and so on, and is suitable for water level measurement in steady flow and unsteady flow clear water or muddy water tests of river model. You can add a wireless transmission module, which saves a lot of trouble in wiring.
The system adopts graphical interface display, synchronously displays the change process of water level at each measuring point with time and the change of water level along the way in a specific time period, and can work synchronously with flow control system and gate control system, thus ensuring the synchronization requirements of unsteady flow test.
3. Automatic processing system for broken plate in model test.
The automatic processing system of model test broken plate applies industrial automation modeling technology to the production of river model broken plate. After the user sets the initial parameters, the system can automatically arrange the broken panels, and the sorting results can be manually adjusted, printed and output in text form. You can also write on the broken panel, indicate the section number, control point elevation and other information, and finally generate the standard G code of CNC machine tools, and input it into CNC machine tools to automatically produce broken panels.
4. Automatic ultrasonic topographic survey and analysis system (TTMS)
Measuring the elevation of a single point on the bed surface with an ultrasonic probe; The ultrasonic measuring assembly moves along the section on the measuring bridge to measure the elevation of all points on the section; The measuring bridge walks vertically on the model, and the sections are measured in turn, and finally the elevation value of the whole model is obtained. Draw three-dimensional display map, contour map and contrast map of erosion and siltation according to the measured data values.
5. Real-time flow field measurement system (VDMS)
Real-time flow field measurement system (VDMS) is a large-scale surface flow field synchronous velocity measurement monitoring system developed by using digital camera and particle tracking velocimeter (PTV). At the same time, the system is equipped with a powerful post-processing analysis module, which enables users to complete the analysis and processing of measurement data efficiently and conveniently. You can also choose a remote digital monitoring system for the flow field, so that users can remotely monitor the test status of the flow field through the network anytime and anywhere. The system has been widely used in hydraulic model, river model, port model and flume test, and its application has greatly saved users' measurement time, improved test accuracy and efficiency, and enhanced the high-tech content of test reports.
6, ship model test measurement and control system
The measurement and control system of ship model test mainly collects data such as ship form line, track line, speed hydrograph and rudder angle hydrograph during the navigation of ship model. Short sampling time, high measurement accuracy, stable performance, simple operation and graphic output. 1, 3D data visualization platform (SDVP-3D)
The visualization platform of commercial water three-dimensional data, located in scientific data visualization, aims to create a three-dimensional data replication and analysis platform that fully meets the needs of water conservancy and water transport industry, and provides solutions for the visualization of scientific research data such as mathematical models, experimental data and measured data.
2. Multifunctional three-dimensional simulation measurement and control system for water tanks.
The 3D simulation measurement and control system of multi-functional flume group is applied to the straight flume of runoff wave and the widened flume with U-shaped circulating adjustable slope built in China Water Conservancy and Hydropower Experimental Base. The two water tanks can be placed under the three-dimensional measurement and control system, and the scene and measurement data can be fully controlled in real time and displayed in three dimensions, thus realizing the simulation of the measurement and control process and the three-dimensional visualization of the process and result data.
Compared with the traditional two-dimensional measurement and control system, the system really realizes the measurement control in three-dimensional scene. The system closely combines the three-dimensional scene with the measured data, which is more scientific and applicable. The system is controlled by touch screen, and the operation of key equipment can be truly presented on the screen, thus completing the experimental operation intuitively and efficiently. In this system, the experimental object can be observed from any angle and any proportion, and the experimental process or results can be played back in three dimensions, which enhances the operability of the experiment and the way of data analysis, and improves the amount of information obtained from the experiment. Prototype observation system of reservoir siltation
The system is mainly used for underwater topographic survey and data analysis of large, medium and small reservoirs, and automatically draws underwater three-dimensional topographic maps. It has powerful post-processing graphic editing, data storage and query, and import and export functions with databases. It is of great significance to apply it to the short-term or long-term underwater topographic observation of reservoirs for evaluating the service life of reservoirs and improving reservoir management.
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