1. Background and Challenges
Around the world, a large number of aging DAMS face high maintenance costs and prominent safety risks. The traditional manual monitoring efficiency is low, it is difficult to find seepage, displacement, overflow water level and other hidden dangers in time, which poses a threat to the safety of downstream life and property. Through intelligent monitoring + visual early warning system, this scheme realizes early detection, early warning and early disposal of risks to ensure the safe operation of the reservoir.
| Layer | Functionality | Core Technologies |
|---|---|---|
| Perception Layer | Real-time data collection (water level, rainfall, seepage pressure, deformation, video, etc.) | IoT sensors, AI cameras, GNSS/BDS positioning |
| Network Layer | Multi-protocol data transmission (4G/5G/LoRa/BDS) | Low-power ad-hoc networks, cloud-edge synergy |
| Platform Layer | Data analytics, early warning, 3D visualization, emergency response | BIM+GIS integration, AI modeling, cloud computing |
3. Core functions
1. Intelligent monitoring of all elements
(1) 7*24 hours remote automatic monitoring
(2) Build a unified identity of reservoir management "One library, one code, one station, one code" Post the two-dimensional code of the reservoir on all monitoring equipment and publicity bars of the reservoir, and you can view the relevant information of the reservoir by scanning the code.
(3) AI intelligent monitoring AI intelligent monitoring perception network serves the intelligent supervision and operation and maintenance of the reservoir, regulates the operation and maintenance supervision of the reservoir, and improves the safe operation level of the reservoir.
(4) Scene visualization Using BIM technology to build a 3D model of the dam, combined with GIS technology to achieve 3D visualization of the dam, and visualization of the dam safety monitoring data to achieve scene browsing and operation, data query and analysis and dam safety information and early warning.
(5) Intelligent monitoring and intelligent early warning can realize the automatic collection, transmission and real-time transmission of data such as seepage pressure, seepage, strain, water level, temperature and rainfall around the reservoir. When the monitoring parameter exceeds the preset alarm value, the system will send an alarm message.
(6) The platform system is highly integrated with functions such as dam safety monitoring, rainwater monitoring, flood prediction, dispatching, early warning and property service management.
(7) Reliable and secure communication supports 5G, 4G, LoRa, GPS/ Beidou and other full-network, highly reliable and highly secure iot sensors, data acquisition terminals, transmission and communication equipment, and early warning equipment.
(8) Low power application scenarios Wide system monitoring equipment adopts low power design, can use solar energy combined with battery power supply form, is not subject to the field remote mountains and other environmental limitations.
(9) The standard reservoir management and protection system uses audio, images, video files, real-time non-delay video calls between the platform and the mobile end to build real-time linkage between hidden danger points and people, strengthen the perfect combination of civil air defense + technical defense, fill the deficiency of strong information technology and weak information of civil air defense at this stage, and open the last kilometer of early warning and disposal.
2. Storm water monitoring system
BGT Hydromet rainwater video monitoring integrated station is mainly composed of reservoir rainfall monitoring, reservoir water level monitoring, AI video monitoring, early warning broadcast and power supply system, using various intelligent sensing equipment, dynamic monitoring and real-time collection of precipitation involved in the reservoir, reservoir water level monitoring information, regional intrusion detection and early warning. Achieve 7*24 hours of remote automatic monitoring and early warning.
Precipitation monitoring: The precipitation monitoring point of the automatic measurement and reporting method, using a tipping bucket rain gauge, the resolution is less than 0.5mm;
Reservoir water level monitoring: the automatic monitoring point of the reservoir water level uses a pressure type water level meter, with a comprehensive accuracy of ±0.1%F•S;
Early warning broadcast: Configure two high-pitched horn speakers to achieve multi-scene automatic voice alarm and remote Shouting functions such as heavy rainfall, high water level, personnel intrusion. The automatic voice alarm should have the function of on-site manual intervention to close;
AI video surveillance: Support area intrusion detection, cross-border detection, entering the area detection and leaving the area intelligent detection alarm;
Display terminal: outdoor full-color LED screen local data display reservoir rainfall, reservoir water level, storage capacity, etc.
Communication mode: Support 4G/5G/ public network transmission;
Power supply system: It has dual power supply of mains and solar energy to cope with complex environment.
3. Dam safety monitoring system
The main construction content of the BGT Hydromet dam safety monitoring system is to bury and install deformation points/GNSS dam displacement monitoring, pressure measuring tubes (piezometers), water measuring weirs and other automatic monitoring instruments and equipment to conduct 24-hour online data monitoring of dam deformation, seepage pressure and seepage, infiltration line monitoring, seepage volume, etc.
Deformation monitoring: Generally, the method of installing observation piers for manual observation is adopted. Depending on the situation, GNSS can also be used for automatic monitoring of surface deformation. Or, on the basis of manual observation, GNSS automatic monitoring facilities can be added at the same time, with automatic as the main and manual as the auxiliary. The monitoring data can be compared and analyzed to improve efficiency and reliability.
Seepage pressure and seepage monitoring: The piezometer is installed in the pressure measuring tube to realize automatic monitoring.
Seepage volume monitoring: The water measuring weir is used for monitoring. The water measuring weir type should be triangular. The water measuring weir meter is installed next to the water measuring weir to realize automatic monitoring.
4. Reservoir downstream early warning system
The early warning system uses advanced intelligent perception, Internet of Things communication, cloud computing, reservoir early warning model and other technologies. Through real-time collection of reservoir rainfall and water level, combined with meteorological forecast data, the reservoir storage capacity, inflow and rain capacity are analyzed. When the reservoir plans to release water, the meteorological warning exceeds the rain capacity or the reservoir water level exceeds the warning water level, the reservoir management personnel can use the system to warn the threatened areas downstream, so that local villagers have sufficient time to prepare for emergency avoidance.
Reservoir dam safety monitoring and early warning platform
Realize the collection, aggregation, analysis, early warning, basic data management, on-site data terminal online operation and maintenance and inspection records of reservoir rain and water conditions and dam safety data, and use GIS to intelligently predict, forecast and warn the status information, real-time data and early warning information of each device. Through data sharing, the system's water and rainfall data, dam safety monitoring data, alarm data and inspection data are pushed to the autonomous region's monitoring platform to achieve information interconnection and interoperability with it.
PC side: comprehensive monitoring, reservoir monitoring, duty management, inspection management, plan management, responsibility management, maintenance management, basic information management
APP side: comprehensive monitoring, reservoir information, plan query, inspection and maintenance, reservoir rainwater conditions, reservoir responsible person
Based on the business needs of reservoirs, we make full use of high-tech, build 2 major management platforms + 2 mobile application bases, and realize the hierarchical reservoir management "visible, knowable, controllable, and predictable".
