In the management of water conservancy projects, gate control is directly related to the efficiency and safety of water resource allocation. Traditional gate operation relies on manual on-site operations, which not only has a slow response speed, but also has safety risks. The remote control system of the gate has realized the remote and precise control of the gate through automation and information technology, and it is becoming the standard configuration of modern water conservancy projects. This system consists of three parts: an on-site control unit, a communication network, and a remote monitoring platform. The working principle is to collect data such as gate opening, water level, and flow through sensors, and transmit it to the control center through the communication network. The operator can send instructions through a computer or mobile terminal to drive the gate motor to perform operations.
The modern gate remote control system has four core functions: the remote monitoring function allows the operator to view the status of the gate, upstream and downstream water level, flow and other data in real time in the control center, and can monitor up to hundreds of gates at the same time; the intelligent control function supports preset control logic, such as automatically adjusting the opening of the gate according to the water level, a certain irrigation area systemAutomatically adjust irrigation flow according to the law of crop water demand; the data collection and analysis function continuously records operating data, generates water volume scheduling reports, and provides decision-making support for water resource management; the alarm and early warning function immediately issues an alarm when the equipment fails or the parameters are abnormal, such as a reservoir that closes the gates in time through the system early warning during heavy rains to avoidThere was a flood spillway accident.
Compared with traditional manual operation, the remote control system has significant advantages. In terms of labor costs, after a watershed management department deployed the system, the number of gate operators was reduced from 120 to 30, saving about 6 million yuan in labor costs per year; in terms of response speed, the system can complete the communication and execution of instructions within 30 seconds, which is more than 10 times faster than manual operation; in terms of safety, the system can complete the communication and execution of instructions within 30 seconds.In terms of energy, the system has multiple protection mechanisms, such as overload protection, limit protection, etc., which greatly reduces the risk of out-of-control of the gate; in terms of management accuracy, the system control accuracy can reach the centimeter level to ensure the accuracy of water allocation.
This system is widely used in many fields: in water conservancy projects, it is used for centralized control of reservoirs and river gates, such as remote monitoring of gates along the south-to-north water diversion project; in urban water supply and drainage, it regulates the gates of pumping stations to prevent urban waterlogging, and the Beijing Municipal drainage system significantly improves the responsiveness to heavy rains through remote control.; In agricultural irrigation, precise water distribution is achieved, and the annual water saving rate of a large irrigation area reaches 25%; in hydropower stations, the water intake gates are controlled to optimize the scheduling of power generation. In addition, it also plays an important role in ecological water replenishment, waterway control and other fields.
When purchasing a system, you need to focus on four factors: stability is the key, the system should be able to operate reliably in harsh environments, and the average trouble-free time should exceed 10,000 hours; compatibility is very important, the new system needs to be seamlessly integrated with existing equipment and support a variety of communication protocols; extensibility cannot be ignored, the system should reserve an interfaceCapacity, support the increase of monitoring points in the future; after-sales service must be guaranteed, and suppliers should provide 24-hour technical support. A user cannot repair the system in time due to the selection of a small manufacturer, resulting in significant losses. It is recommended to give priority to suppliers with experience in large-scale projects.
During the installation process, it should be noted that the electrical wiring must meet the requirements of moisture-proof and corrosion-proof, the signal line must take anti-interference measures, and the sensor installation location must be scientific and reasonable. Three systems need to be established for daily maintenance: a regular inspection system (monthly inspection of sensor accuracy), a preventive maintenance system (quarterly cleaning of equipment dust), and a spare parts system (reserve of key components). Because a water conservancy hub insisted on daily inspections, it discovered and replaced the aging communication module in time to avoid system paralysis. Maintenance records show that standardized maintenance can extend the life of the system by 5-8 years.
Remote control of gates is developing in the direction of intelligence: artificial intelligence technology will be applied to water volume prediction and intelligent scheduling, digital twin technology can build virtual gates to achieve simulation control, 5G technology will provide higher-rate and lower-latency communication guarantees, and blockchain technology can ensure that operation records cannot be tampered with. In the future, the system will be more deeply integrated with meteorological forecasting and hydrological monitoring to realize smart water conservancy in the true sense. The intelligent system being developed by a scientific research institution has been able to predict changes in water volume 3 days in advance and automatically generate a scheduling plan, marking the entry of gate control into a new stage of intelligent decision-making.
With the development of technologies such as the Internet of Things and big data, the gate remote control system is developing from simple remote control to intelligent decision-making. It is recommended that users base their system selection on current needs, while considering future technological evolution, and choose a platform with good openness and strong extensibility. Remote control of flood gates is not only a technological upgrade, but also a change in management model, which will promote the transformation of the water conservancy industry to digitization and intelligence.
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