1. Construction background
China is currently the country with the largest number of reservoirs, and reservoir dams are water conservancy engineering structures that hold back floods and store water and regulate water flow. However, many reservoir dam buildings are old, and safety has become the most important factor restricting the healthy development of reservoir dams. It is difficult to exert normal flood control benefits, and it will also bring immeasurable losses to the lives and property of people downstream.
2. Significance of construction
1) Serve as the eyes and ears to monitor the safety of the dam and ensure the safe operation of the dam
2) Give full play to the benefits of the project
3) Ensure the safety of the people and reduce the economic losses due to dam failure
4) It is an urgent requirement to implement the general tone of water conservancy reform and development
3. Construction content
1) Water and rain monitoring station:
Collect water level and rainfall data through water level and rainfall sensors; Through the RTU telemetry terminal, one station is multi-generated, and the real-time rainwater data is sent to the front-end processor of the municipal water situation sub-center. After the information receiving software deployed on the front-end machine completes the reception and compilation of the rain data of the water level and rainfall gauge station, the real-time rainwater data is stored in the county-level platform database and the municipal hydrological database; The Municipal Water Situation Sub-center will then report the real-time rainwater data of the automatic monitoring station of the county (city, district) under its jurisdiction to the Provincial Water Situation Center through the water situation reporting system.
The overall structure diagram is as follows:
2) Dam safety monitoring
The dam safety monitoring system includes dam seepage flow, seepage pressure, and surface deformation monitoring. Establish a reservoir dam safety early warning system, evaluate the safety status of reservoir dams in real time, and draw process line diagrams, section infiltration line diagrams, annual data reports, and monthly reports according to the data to meet the needs of project management.
The overall structure diagram is as follows:
Fourth, the Internet of Things platform
lThe IoT platform includes several modules: device overview, monitoring standards, device management, monitoring point management, and system management
lA standard IoT protocol is established in the IoT platform to support secure and reliable two-way data transmission from the device to the cloud
The platform monitors the equipment status in real time through the communication data of the equipment, and the user can also remotely control the equipment online in the system, including the issuance of control instructions, the reading of the equipment status and the remote service such as firmware upgrade, which greatly reduces the user's maintenance cost of the equipment
Fifth, the characteristics of the system
●Adopt a variety of reservoir dam monitoring, multiple functions, and can flexibly adjust the functions, increase or decrease monitoring items according to specific needs.
●High measurement accuracy and strong anti-interference ability.
●Adopt wireless transmission mode, break through geographical restrictions, and have strong adaptability.
●Based on the self-developed wireless products, the equipment can be remotely debugged and maintained.
●The dedicated client supports users to view the current device status anytime and anywhere.
●Adopt lightning protection, rain protection, moisture prevention, input signal isolation and other measures to ensure the safety of the equipment and the stable and reliable performance.
●Strong compatibility, compatible with various types of monitoring, surface settlement, soil displacement, soil moisture content, earth pressure, piezometer, water level gauge, rain gauge, GNSS receiver, fixed inclinometer, piezometer, high-speed HD camera, pore water pressure meter, radar level meter, cable-type displacement meter, earth pressure gauge and other sensors, the equipment supports NB-IOT networks of carriers such as China Telecom, China Mobile, China Unicom, etc., and is compatible with the access of major operators' IoT platforms.
