First of all, the policy environment of digital double basin:
202165438+On February 23rd, the Ministry of Water Resources held a working conference to promote the construction of digital double river basins. Li, Minister of Water Resources, put forward: "Digital Double Watershed takes physical watersheds as a unit, takes spatio-temporal data as the basis, takes mathematical models as the core, and takes water conservancy knowledge as the driving force to digitally map and intelligently simulate all elements of physical watersheds and the whole process of water conservancy management. Realize the synchronous simulation operation, virtual-real interaction and iterative optimization with the physical river basin, and emphasize digitalization, networking and intelligence as the main line, digital scene, intelligent simulation and accurate decision-making as the path to support the construction of computing data, algorithms and computing power, accelerate the construction of digital double river basin, and realize the functions of prediction, early warning, rehearsal and pre-plan.
Second, the development status of water conservancy informatization:
(1) lack of thorough perception:
The coverage and elements of water conservancy perception are incomplete, and the monitoring ability of hydrological information, environmental information and engineering information can no longer meet the needs of existing business development and management. Although information can be collected through technologies and equipment such as ground, water, aviation and aerospace, the overall intelligence level is still at a low level. There is still a long way to go in the construction of digital double river basin system. The technology and equipment of Internet of Things have not been fully utilized, the basic communication ability is weak, and there are shortcomings in network bandwidth and emergency measures.
② Information infrastructure lacks "computing power";
Among the existing water conservancy business networks, only the water conservancy business networks of six provinces (autonomous regions) can reach township-level water conservancy units, and the connectivity rate of project management units is even lower, which seriously hinders the development principle of "three-level deployment and multi-level application" in water conservancy business application. Backbone network can not meet the needs of existing data transmission and business calls. Faced with the rapid growth of more and more images, videos and other data, there is a lack of big data processing, cloud computing and data storage capabilities.
③ The development and utilization of information resources need to be improved;
The lack of integration of water conservancy internal information system leads to the problems of incomplete basic information, low accuracy, inconsistent basic data, inconsistent object coding and data standards in existing water conservancy facilities, and the phenomenon of "re-mining and re-storing" of data among various businesses and departments at all levels. At the same time, there is a lack of enjoyment of external information such as geological information and lack of linkage.
④ There is a big gap in the level of business application intelligence:
In the existing water conservancy information system, there are problems such as water conservancy project, water resources development, flood control and drought relief, soil and water conservation, etc. The integration of business and information technology is not deep, the level of intelligence is insufficient, and the application of emerging technologies such as 5G, AI, big data and Internet of Things is not sufficient, which eventually leads to the problem of weak ability of information systems to support business development.
Thirdly, water conservancy digital pairing realizes digital mapping and intelligent simulation of physical space.
Guangdong Ground-to-Air Intelligent Technology Co., Ltd. cooperated with water conservancy professional institutions to carry out relevant research and practice in the field of smart water conservancy. It captured real-time monitoring data through the sensing layer, and integrated all kinds of basic water conservancy data based on more than ten high technologies such as full digital measurement, big data, cloud computing, geographic information, three-dimensional virtual model, artificial intelligence and blockchain, focusing on the management, display and analysis of water conservancy data. Make a detailed, comprehensive and dynamic simulation of water conservancy space, build a horizontal * * * sharing and vertical linkage of water conservancy business, realize information exchange among water conservancy departments at all levels, truly open up isolated islands of water-related information, break the compartmentalization of water-related business, and provide intuitive and convenient support for managers such as safety analysis and evaluation, engineering operation and maintenance management, flood control dispatching management and comprehensive display. The digital twin water conservancy information supervision platform integrates three systems: digital twin watershed management system, digital twin simulation system and digital twin knowledge service system, integrates and aggregates multi-source data, establishes a full-time, multi-dimensional and multi-granularity water conservancy full-time resource database, and realizes the integrated management of water conservancy data assets; On the one hand, upgrade and expand a water conservancy map and build unified basic data. Monitoring data acquisition, two-dimensional integration and three-level collaborative digital backplane provide high fidelity, high stability and high quality simulation of water conservancy scenes; On the other hand, it integrates the coupling multi-dimensional and multi-time-scale water conservancy professional model and AI intelligent model, and provides the "four pre-planning" ability integrating analysis, simulation, expression and decision-making, and provides intelligent services for "2+N" business.
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The digital twin water conservancy information supervision platform takes digital twins as the core, physical watershed as the unit, water conservancy spatio-temporal data as the basis, watershed data integration and visualization, water conservancy simulation as the core, water conservancy knowledge as the driving force, and uses technologies such as Internet of Things, big data, artificial intelligence and virtual simulation to realize digital mapping and intelligent simulation in the whole field, all elements and whole process of physical space to support accurate water conservancy decision-making.
Fourth, integrate data and build a digital twin water conservancy big data center;
Based on the relevant data standards and specifications of water conservancy industry, sort out the catalogue of water conservancy data resources, and access and integrate multi-time, multi-granularity and multi-dimensional water conservancy data, including basic geospatial data, business management data, monitoring and sensing data, and cross-industry sharing data. After standardization, a digital twin water conservancy big data center will be formed to provide users with unified standard data services.
5. Classifying and warehousing to form a panoramic view of water conservancy spatio-temporal big data:
Classify, fuse and aggregate water conservancy data with multi-time, multi-granularity and multi-dimension, build a water conservancy data resource library with consistent standards, form a panoramic view of water conservancy spatio-temporal big data, and provide users with all-round, multi-time and multi-granularity full-time data resource services.
Subsystem 1: Digital Double Watershed Management System
The Digital Twin Watershed Management System is the foundation of the Digital Twin Water Conservancy Information Supervision Platform, which mainly builds a data backplane to provide massive data support for simulation and knowledge service. The system constructs a unified portal, accesses multi-source water conservancy spatio-temporal data, breaks the data barrier and realizes unified data management; Establish a virtual mapping from physical space to digital space, and construct a spatio-temporal panorama of water conservancy; Comprehensive use of Internet of Things, cloud computing, big data, artificial intelligence, geographic information and other new information technology means to provide massive data analysis capabilities, realize detailed, comprehensive and dynamic simulation of water conservancy space, and provide support for refined management.
① Multi-source heterogeneous data access to realize unified data management.
② "Physical-digital" mapping, forming a "map" of water resources;
(3) Hardware and software blessing to help massive data analysis;
Subsystem 2: Digital Twin Analog System
Digital Twin Simulation System is an upgraded version of Digital Twin Watershed Management System, which mainly provides high fidelity, low delay and high stability 3D visualization scenes, and supports detailed, quantitative, dynamic and intuitive calculation and analysis. Based on the efficient graphic visualization technology of large scenes, the system improves the overall loading efficiency and browsing fluency with a series of technologies such as lightweight +webp+ block storage+subdomain, and realizes the high-fidelity and high-quality spatial expression and simulation modeling of multi-source, multi-dimensional and multi-granularity data.
Subsystem 3: Digital Twin Knowledge Service System
Digital twin knowledge service system is the core content and ultimate goal of digital twin water conservancy information supervision platform, which mainly integrates and couples multi-dimensional and multi-temporal data models and provides "four forecasts" ability. On the basis of enjoying all kinds of calculation models and results of the Ministry of Water Resources and river basin management agencies, the system constructs water conservancy professional models, artificial intelligence models and water conservancy knowledge models as needed, forms a digital twin water conservancy model base, provides intelligent services such as project scheduling, safety monitoring and knowledge mining, and realizes comprehensive decision-making and command of the functions of "prediction, early warning, drill and plan".
(1) Integrate water conservancy professional models to promote accurate simulation of water conservancy;
Guangdong Ground-to-Air Intelligent Technology Co., Ltd. focuses on the fields of smart water conservancy and spatial intelligence, and is committed to building a professional hydrological-hydrodynamic-water quality coupling model to support flood control and drought relief in river basins and regions, water resources and water environment dispatching management, flood control and drainage in smart cities, and emergency dispatching and command of water pollution in large rivers. To promote the accurate simulation and analysis of water conservancy.
② Introducing AI intelligent model to help water conservancy intelligent decision-making;
Remote sensing AI, video AI and other technologies are used to automatically interpret and process remote sensing images, so as to realize large-scale dynamic monitoring and early warning of rain, engineering, danger, drought, soil erosion, water quality and water environment, illegal sand mining and shoreline occupation. , improve the ability of water conservancy safety monitoring.
③ Establish water conservancy knowledge model to support water conservancy knowledge service;
Driven by the model base and knowledge base, the emergency plan can be quickly analyzed, judged, optimized and improved, and the information interaction with personnel terminals can provide support for multi-party consultation within the unit, with river basin management agencies and the Ministry of Water Resources, and emergency dispatch and command of relevant manpower and material resources.