Mountains contain hundreds of treasures without speaking; water moistens all things without speaking. China belongs to a river civilization, and agriculture has always played a dominant role in the economy. Water conservancy and irrigation are an important factor in ensuring agricultural production and increasing agricultural output. Nowadays, traditional water conservancy is combined with digital twins, and data is visualized and controllable to achieve the "four predictions" of water conservancy, creating a new chapter in smart water conservancy.
Digital empowerment makes water management and management smarter
What is digital twin water conservancy? In layman's terms, it refers to the use of new generation information technologies such as cloud computing, big data, artificial intelligence, and virtual reality to collect full amounts of data to achieve visual displays of rivers, reservoirs, water network construction, project scheduling, etc., and to conduct intelligent simulation and forward-looking Rehearsal.
The Ministry of Water Resources is accelerating the construction of a digital twin water conservancy system with the functions of "four predictions" (forecast, early warning, preview, and plan). So what exactly does a water conservancy digital twin do in the eyes of the public?
"Four Preliminaries" technical framework diagram for water conservancy business
The requirements of the "four forecast management" of water conservancy mainly focus on: improving forecast accuracy, early warning timeliness, preview simulation, and the scientificity and operability of the plan. These needs can be better met by combining with 3D visualization technology.
Three-dimensional visualization technology provides a more intuitive and three-dimensional data display method, allowing water conservancy departments to better understand and analyze the development trends of water security factors, and at the same time, it can also broaden the channels for releasing early warning information. By presenting early warning information in the form of three-dimensional images, the front line of water conservancy work and the public can understand the early warning content more intuitively and take response measures faster.
Not only that, 3D visualization technology can also build a highly realistic digital twin watershed, simulate water conservancy project scheduling under various circumstances, help water conservancy departments more intuitively understand risk situations and impacts, and better iterate optimization plans.
Through three-dimensional visualization technology, the plan can be presented in a more intuitive and three-dimensional way, allowing the water conservancy department to better understand the content of the plan, more accurately grasp the latest working conditions and economic and social conditions of the water conservancy project, and ensure the operability of the plan.
Digital twin water conservancy is inseparable from “mapping, simulation and simulation”
At the end of April this year, my country's first major digital twin river basin construction project, the Yangtze River Basin full coverage water monitoring system construction project, started construction. After completion, the monitoring station network will cover 3,791 sections and tens of thousands of water intakes above designated size. The video surveillance system can cover 160 controlled water conservancy projects, 96 important flood control nodes, and 28 important sand mining river sections, helping to continue to promote the Yangtze River Great protection.
It is not difficult to see that the Ministry of Water Resources has been coordinating the construction of digital twin watersheds, digital twin water networks, and digital twin projects, and promoting 2+N applications in water conservancy business. The water conservancy digital twin here is far more than just three-dimensional visualization.
Digital twin water conservancy and flood control preview scene
Digital twin water conservancy is based on “numbers”. Digital twins and physical object mapping: Through digital twin technology, all elements of the physical watershed can be digitally mapped, and dynamic, real-time information interaction and deep integration between the physical watershed and the digital watershed can be achieved, maintaining the synchronization and twinning of the two.
Holographic perception, everything is "numbered". Digital mapping is the basis of digital twin water conservancy, including mapping the physical entities of water conservancy objects, mapping the real-time status of objects, mapping the scheduling operations of facilities and equipment, and mapping the development and changes of the water flow field.
Digital twin water conservancy focuses on “performance” . Digital twins realize intelligent simulation: By integrating and coupling multi-dimensional and multi-spatial-temporal scale high-fidelity mathematical models, a digital twin watershed simulation platform is constructed to support the "four pre-simulations" of all elements of the water conservancy business.
The main technical means of intelligent simulation are: simulation deduction, visual presentation, spatial analysis, etc. Simulation simulation deduction is a spatial deduction and process analysis through simulation calculation of physical entities, business processes and other parameters, providing a driver for preview, such as "rainfall-runoff-confluence-evolution" process deduction; visual presentation shows physical entities, The business process displays the entire watershed scene down to project details, providing an intuitive effect for previews; spatial analysis combines services such as spatiotemporal grids and spatial positioning to provide spatial data-related calculations, analysis, viewing, path planning, roaming, and visual domain analysis. , scene annotation and other capabilities to provide spatial calculation and analysis functions for previews.
It is worth mentioning that due to the spatial characteristics of water conservancy work, water conservancy is a large-scale and large-scale work. It is impossible to test different solutions in the physical watershed, and can only be repeatedly previewed in the digital space.
Digital twin water conservancy will definitely focus on “refined decision-making”. Precision decision-making is a suggested solution to achieve precise decision-making based on previews of flood control dispatch, water resources management and allocation, and water ecological process regulation.
Supporting precise decision-making is the goal of the digital twin watershed. The focus is to formulate optimal plans to avoid risks, improve benefits, and reduce losses to the greatest extent in advance. The main task is to build a knowledge platform to provide information for many aspects such as planning, project scheduling, and governance management measures. Provide support through program comparison and selection.
AIRLOOK provides favorable support for digital twin water conservancy
AIRLOOK has the technical capabilities of large-scale spatial data collection, fully automatic 3D model production and lightweight 3D data. It also has a self-developed 3D geographic information engine and has formed a water conservancy digital twin solution. The solution includes: L1, L2, and L3 water conservancy-specific geospatial data production, water conservancy visualization model construction, 3D rendering engine, and simulation engine. It provides a digital twin base specifically for water conservancy digital twin projects and provides fusion loading and high-definition of multi-level spatial data. Cloud rendering capabilities.
Digital Songtao Project
Last year, the company and its partners participated in the digital twin Songtao Reservoir project constructed by the Hainan Provincial Department of Water Affairs, providing users with a digital twin base with four pre-functions. In the project, the deep integration of digital twin technology and water conservancy business was explored, providing replicable and generalizable experience and practices for the construction of other digital twin water conservancy projects.
Hainan Smart Water Network Project
This project applies GIS+BIM, VR, cloud rendering, rule engine, AI recognition, machine learning and other technologies to achieve intelligent management of Songtao Reservoir in reservoir area monitoring, operation management and protection, reservoir flood control and water resources dispatch, combining the above The downstream flood control safety and water needs and the safety status of the reservoir will be implemented to implement the "four prevention" integrated process to provide effective support for the safe operation and management of the reservoir.
This year, AIRLOOK also participated in the Yunnan Province Digital Twin Irrigation District Project, building a digital twin base for a medium-sized reservoir, integrating digital twin technology with the rational utilization of water resources, and giving full play to the supporting role of digital twin technology in the 2+N application of water conservancy business. .
Flood discharge simulation of a medium-sized reservoir
Digital twin water conservancy construction is a technology-intensive, talent-intensive, and capital-intensive innovative project, and there is a long way to go to achieve high-quality advancement. In the future, AIRLOOK will vigorously promote the construction of digital twin water conservancy, continue to contribute to the sustainable development and resource protection of the water conservancy industry, and provide stronger support for the country's water security capabilities.