In the wave of intelligent upgrading of water conservancy projects, the operation and maintenance model of “no one on duty and few people on duty” of hydropower stations has become a trend.Remote monitoring system of micro-special gate opener and closer With a programmable controller (PLC) as the core, it integrates industrial Ethernet technology and a high-performance host computer to create an intelligent control system with simple structure, strong reliability and high degree of automation, which provides strong support for the improvement of the operation and maintenance efficiency and safety level of hydropower station gates.
1. System architecture: simple and efficient hierarchical intelligent design
System adoption “The upper computer floor of the central control room–industrial TV-on-site strata” Three-layer architecture, realizing full-link intelligent control from “remote control” to “on-site perception”：
On-site strata: Configure independent gate control boxes (such as 1#, 4#, 7#, etc.), equipped with load sensors, encoders and other on-site signal acquisition components to capture gate operation data in real time; the control unit of each gate is relatively independent, and the failure of a single gate does not affect the operation of other gates.
Industrial Ethernet layer: Through 100M high-speed industrial ethernet, photoelectric switches and other equipment, a stable data transmission channel is constructed to ensure that the communication delay between the PLC and the host computer, the sensor and the control box is less than 1ms.
Upper computer floor of central control room: Equipped with a video server, multiple types of cameras (indoor and outdoor uniform speed spherical all-in-one machine, 60m infrared camera, etc.) and a high-performance host computer to realize visual monitoring of the operating status of the gate, in-depth data analysis and remote command issuance.
2. System characteristics: Seven advantages create an industry benchmark
High precision control: The operating accuracy of the gate is at the millimeter level, and the response speed is at the millisecond level, which accurately controls every gate action.
High reliability guarantee: Equipped with electrical and mechanical limit protection and electrical operation protection. At the same time, the control units of each gate are relatively independent. The failure of one control cabinet does not affect the normal operation of other gates, and a dual safety line of defense is constructed from hardware to logic.
Industrial-grade communication stability: Using industrial Ethernet communication, the data transmission is stable and reliable, and it is suitable for complex electromagnetic and environmental scenarios of hydropower stations.
High rate and low latency: The combination of PLC, host computer and industrial Ethernet enables the communication delay to be less than 1ms to ensure real-time interaction between instructions and data.
Simple structure and easy operation and maintenance: With the simple architecture of "PLC → communication network → host computer", it effectively reduces equipment investment costs and late maintenance costs.
Diversified operation methods: SupportOn-site manual control, remote manual control, remote precise control, automatic system controlAnd other operating modes, flexibly adapt to various scenarios such as daily operation and maintenance, emergency dispatching, etc.
3. Core functions: three dimensions guard the intelligent operation of the gate
1. High precision gate control
Relying on advanced control system architecture, the gate is realizedPrecise control of millimeter-level openingwithMillisecond response speed, To ensure that the gate action is accurate and efficient, and to meet the strict requirements of water conservancy dispatching for the control accuracy of the gate.
2. High reliability of gate operation
Each gate is equipped with an independent control cabinet, with dual electrical and mechanical protection mechanisms, to achieve the reliable operation effect of “non-proliferation of single gate failures”, avoid the risk of system-level failures from the root cause, and ensure the stable operation of the gate group of hydropower stations.
3. Diversified gate operation
It supports wire ropes with diameters ranging fromOn-site manual, remote manual, fully automatic controlIt not only adapts to the flexibility of on-site debugging by operation and maintenance personnel, but also meets the intelligent needs of remote centralized control, allowing the gate operation to switch freely between “flexible” and “intelligent”.
4. Application value: fully empowers the operation and maintenance of hydropower stations
Efficiency improvement: Automated remote control replaces traditional manual duty, greatly reduces the intensity of operation and maintenance, and realizes a lightweight operation and maintenance mode of “no one on duty and few people on duty”.
Cost optimization: The simple system architecture and independent control unit reduce equipment investment and late maintenance costs; precise control and reliable protection reduce the maintenance and downtime losses caused by gate failures.
Security upgrade: The whole process from data acquisition, transmission to control is intelligent, and multiple protection mechanisms are combined to build a solid safety barrier for the operation of the gate of the hydropower station.
Micro-technology has deepened the field of intelligent water conservancy toRemote monitoring system of gate opener and closer As the carrier, it will continue to provide the core driving force for the digital transformation of hydropower stations. If you need to know more about product details or customized solutions, please feel free to contact us to explore more possibilities for the intelligence of water conservancy projects.
