智慧水利

Search documents
从北江到韩江:广东数字孪生技术实现跨流域复用
Shui Li Bu Wang Zhan· 2025-08-07 00:37
Core Insights - The Guangdong Provincial Water Resources Department is leading a breakthrough in smart water conservancy construction by leveraging innovative strategies and experiences from the digital twin Beijiang project, focusing on the construction of a flood control joint scheduling scenario for the Han River Basin [1][2] Group 1: Technological Foundation - The "Digital Twin Beijiang" project is recognized as one of the top ten model projects for digital twin water conservancy construction in the country, creating a digital model that encompasses 14 large and medium-sized reservoirs, 2 flood discharge gates, and the Poyang Lake flood retention area, achieving the "four pre" functions of forecasting, early warning, simulation, and planning [1] - This digital model supports intelligent assessment of flood control situations and optimizes joint scheduling calculations for flood control projects [1] Group 2: Collaborative Efforts - In response to the potential flooding in 2025, the Guangdong Provincial Water Resources Department formed a joint task force comprising various agencies to develop a unified digital twin platform for the Han River Basin, integrating existing hydrological forecasting, flood inundation analysis, dam breach analysis, and coastal storm surge warning models [2] - The initiative has led to the dynamic visualization of rainfall, water conditions, and operational status in the Han River Basin, along with preliminary applications of the "four pre" functions to support key water conservancy projects [1][2] Group 3: Practical Application and Future Plans - A dual-track verification mechanism has been established to enhance the practical application effectiveness of digital twin technology, addressing challenges in hydrological forecasting and basin scheduling model development [2] - The successful construction of the Han River Basin flood control joint scheduling scenario demonstrates the replicability of digital twin technology, providing a reference for rapid deployment in similar scenarios and reducing development costs [2] - Future plans include continuous upgrades to the Han River Basin flood control joint scheduling application and expanding the coverage of digital twin technology across five major river basins in the province [2]
防汛“硬核”科技筑牢智慧水利安全防线 | 水利科普↓
Yang Shi Wang· 2025-08-03 07:58
Core Viewpoint - The article discusses the implementation of a digital twin system and decision support system in China's water management, focusing on the "Four Pre" functions which are essential for flood and drought disaster prevention [1][4]. Group 1: The "Four Pre" Functions - The "Four Pre" refers to forecasting, early warning, rehearsal, and contingency planning, which are the core functions of smart water management [4]. - Forecasting serves as the foundation, utilizing mathematical models to predict various water safety factors such as precipitation, water levels, and soil moisture, thereby providing valuable time for flood prevention efforts [3]. - Early warning acts as a frontline measure, delivering timely information to frontline water management teams to guide emergency responses like engineering inspections and personnel evacuations [6]. Group 2: Simulation and Planning - Rehearsal involves simulating typical historical events and future scenarios within a digital twin watershed to formulate risk mitigation measures [8]. - Contingency planning is based on rehearsals, taking into account actual engineering and social conditions to develop actionable engineering and non-engineering measures, ensuring the feasibility of the plans [10]. - The four components are interconnected and progressively build a safety defense line for smart water management [10].
“四预”究竟是什么?知识点来了
Yang Shi Xin Wen· 2025-08-03 04:38
Core Viewpoint - The article emphasizes the importance of the "Four Pre" functions—forecasting, early warning, simulation, and planning—in enhancing the effectiveness of flood and drought disaster prevention in China's water management system [1]. Group 1: Four Pre Functions - Forecasting serves as the foundation, utilizing mathematical models to predict various water safety factors such as precipitation, water levels, and flow rates, thereby providing critical time for flood prevention efforts [4]. - Early warning acts as a frontline measure, delivering timely information to frontline water management teams to guide emergency responses like engineering inspections and personnel evacuations [3]. - Simulation involves modeling typical historical events and future scenarios within a digital twin environment to develop risk mitigation strategies for water management [7]. - Planning is based on simulations and considers actual engineering and social conditions to create actionable measures, ensuring the feasibility of the plans [6].
东深线上护水人
Ren Min Ri Bao· 2025-05-24 21:52
Core Viewpoint - The "Dancing Water Droplet Exhibition" in Hong Kong celebrates the 60th anniversary of water supply from the Dongjiang River to Hong Kong, highlighting the importance of this water source for the region's development and prosperity [4][26]. Group 1: Water Supply and Infrastructure - The Dongjiang water supply project has been operational for 60 years, providing over 30 billion cubic meters of water to Hong Kong, meeting approximately 80% of its water needs [14][24]. - The project has undergone multiple expansions and improvements, increasing its supply capacity significantly since its inception [17][24]. - In 2024, the Pearl River Delta Water Resource Allocation Project will provide an emergency backup water source for Hong Kong, enhancing the reliability of water supply [18]. Group 2: Environmental and Community Impact - The Dongjiang water source area has seen significant ecological restoration, with vegetation coverage increasing from 10.2% to 95% and the number of plant species rising from 6 to over 100 [7][8]. - Local communities have made sacrifices, such as reducing agricultural land and relocating from protected areas, to ensure the preservation of water quality [11][12]. - The transformation of former mining areas into green spaces and sustainable agricultural practices reflects the community's commitment to environmental protection [6][7]. Group 3: Technological Advancements - The Dongjiang water supply system has integrated advanced technologies for monitoring and managing water quality and flow, including automated sampling and real-time data transmission [22][23]. - The implementation of smart water management systems has improved operational efficiency and environmental protection measures [22][23]. Group 4: Cultural Significance - The water supply from Dongjiang to Hong Kong symbolizes the deep connection between the two regions, fostering a sense of gratitude and shared identity among residents [26][28]. - Educational initiatives and community events emphasize the importance of water conservation and the historical significance of the water supply project [26][27].
大禹节水(300021) - 300021大禹节水投资者关系管理信息20250428
2025-04-28 11:24
Group 1: Policy and Market Environment - The Chinese government is increasing investment in agricultural water management, with plans to build 1.35 billion mu of high-standard farmland by 2030 and improve 280 million mu by 2035 [4] - The total investment in water conservancy construction has exceeded 1 trillion yuan annually for three consecutive years, reaching a historical high of 1.35 trillion yuan in 2024 [5] - The "soft construction" initiative is expected to significantly benefit private sector leaders in the industry, enhancing project organization and financing [5] Group 2: Company Performance and Financials - The company achieved a revenue of 4 billion yuan in 2024, benefiting from national policies promoting water conservation and agricultural modernization [6] - The company has maintained an order acquisition scale of 5 billion yuan for three consecutive years, ensuring revenue growth and performance certainty [6] - Operating cash flow for the company reached 597 million yuan, indicating strong financial health compared to industry peers [7] Group 3: Profitability Challenges - The average project gross margin has declined due to increased competition and a focus on market share over profit margins [6] - High operational costs, including sales and management expenses, have impacted net profit, although these costs are expected to stabilize [7] - The company anticipates a gradual recovery in industry gross margins, which will positively affect profitability [7] Group 4: Business Strategy and Future Outlook - The company plans to balance its revenue streams across three business segments: agricultural engineering, water information technology, and operational services, each targeting a one-third share [7] - The company is expanding its international presence, particularly in emerging markets along the Belt and Road Initiative, to mitigate risks and capture higher-margin opportunities [11] - The company is committed to technological innovation, with ongoing projects in smart irrigation and water resource management, including the development of a sound wave rain enhancement device [12]