On the big screen, the drone flaps its "wings" and takes off, following its "eyes" to see the clear water, green mountains, small islands, and sunset... At the Danjiangkou Reservoir Water Quality Safety Guarantee Command Center in Hubei Province, dispatcher Zhou Shuting lightly clicked the mouse, and the drone from more than ten kilometers away immediately took off from the hangar and patrolled according to the set route. Drones can automatically identify and warn of potential hazards that may affect the safety of reservoirs Zhou Shuting said that 20 drones automatically patrol at designated locations three times a day, and can be taken over at any time if necessary, commanding a certain drone to take off. Danjiangkou City is the core water source of the South to North Water Diversion Middle Route Project. In order to prevent sewage from entering the river reservoir, the Danjiangkou reservoir area has achieved comprehensive water protection in terms of "air, sky, land, and water" in recent years. High altitude satellites, drones, and over 200 high-definition cameras along the coastline of the reservoir are woven into a "sky eye", which can clearly see the "wind and grass movements" of illegal sewage discharge, illegal fishing, and hazardous chemical vehicle transportation; The monitoring devices in the underground rainwater and sewage pipeline network remain vigilant in real time. Once there is leakage, the pipeline robot can accurately detect and repair it in a timely manner; Real time monitoring of the water quality section of the reservoir and the water quality of the inflow tributary channels, with automatic warning in case of abnormalities... The reporter randomly clicked on a pharmaceutical enterprise in the system, and the inflow, outflow, and electricity consumption information fluctuated in real time. Multiple indicators such as pH value and total phosphorus at the discharge outlet have just been updated. Zhou Shuting introduced that the system has been connected to 39 key enterprises. By comparing these data, the algorithm can automatically determine whether the enterprise has illegally discharged sewage and take measures to rectify it. Since the beginning of this year, the number of days with Class I water quality in Danjiangkou Reservoir has exceeded 220. Among the days with water quality of Class II, only a few of the 109 water quality monitoring indicators exceeded the Class I standard. Qin He, a staff member of the South to North Water Diversion Middle Route Water Source Co., Ltd., said that the Danjiangkou reservoir area covers an area of 1050 square kilometers and has a coastline of 2313 kilometers, which cannot be closed and managed like a small reservoir. At the same time, the area of reservoir subsidence is large, and there are many factors that affect water quality. Dealing with emergencies requires the support of technological means. For example, in the event of a sudden water pollution incident in the reservoir area, we can immediately activate the digital twin system to quickly identify the direction and degree of pollutant diffusion under different disposal plans, adjust the discharge volume of the reservoir, and ensure that the canal head is as little polluted as possible Jiang Rong, Deputy General Manager of the Water Source Co., Ltd. of the South to North Water Diversion Middle Route, said that by establishing a water quality emergency response plan library, unknown changes can be predicted, and disposal can run ahead of risks. Zhang Yan, director of the Danjiangkou Reservoir Water Quality Safety Guarantee Command Center, introduced that the command center integrates three major forces: water law enforcement team, land patrol team, and ecological environment police brigade. Through unified coordination and scheduling, it supervises relevant responsible units to handle problems and clues discovered by the intelligent monitoring system, public complaints, and assigned by superiors within a limited time. If the problem is not resolved within the prescribed time, the clues will be automatically handed over to the neighboring disciplinary inspection and supervision hall, and the disciplinary inspection and supervision team dispatched by the disciplinary commission will supervise and ensure timely detection and resolution of the problem Zhang Yan said. To promptly stop and crack down on related illegal and criminal activities, the command center will transfer the clues involved to the joint case handling center. The four units of public security, procuratorial, judicial and environmental protection have established a disposal mechanism for clue analysis, joint investigation and punishment of illegal activities, collaborative handling of cases, rapid crackdown on crimes, and full supervision of law enforcement, "said a staff member of the Law Enforcement and Case Handling Center. (New Society)