基于数字孪生技术的城市洪涝灾害评估与预警系统分析  

Analysis of the Evaluation and Pre-warning System of the Urban Flood Disaster Based on the Digital Twin Technology

作　　者：李强[1] LI Qiang(HIWING Technology Academy of CASIC,Beijing 100074,China)

机构地区：[1]中国航天科工飞航技术研究院,北京100074

出　　处：《北京工业大学学报》2022年第5期476-485,共10页Journal of Beijing University of Technology

基　　金：国家重点研发计划资助项目(2017YFC0805007);中国航天科工集团有限公司资助项目(2020-M-4)。

摘　　要：针对现有城市洪涝灾害评估与预警系统感知与动态响应能力不足、决策实时性差等问题,基于数字孪生技术提出了包含物理城市、虚拟城市、智能服务、孪生数据、虚实交互5个模块的城市数字孪生体模型,并分析了城市洪涝灾害评估与预警数字孪生系统.从5个模块的基础组成、功能要点2个维度对系统架构进行了解释,以可视化表达、数据驱动模型及虚实交互的智能闭环控制为框架分析了系统的技术架构,从数字模型建设、数据融合、场景模拟、分析决策4个角度展示了系统的建设过程.基于城市数字孪生体模型的城市洪涝灾害评估与预警系统能够实现城市洪涝灾害的自动监测预警、实时智能指挥调度等功能.To solve the problems of poor ability in perception and dynamic response,and slow action in decision-making for the evaluating and pre-warning system of the urban flood disaster,a digital twin city model including five modules of Physical Entity,Virtual Entity,Services,Digital Twin Data,and Connection was developed based on the digital twin technology.The evaluating and pre-warning system based on the digital twin city model of the urban flood disaster was analyzed as follows:the system framework was interpreted by describing the basic components and the functions of the five modules;focusing on three key technologies of the visual representation,the data-driven model,and the intelligent closed-loop control in virtual-real interaction,the technical framework of the digital twin city was analyzed;the construction method of the system was illustrated from four processes of constructing the digital model,integrating data,simulating scenario,and making decision.The evaluating and pre-warning system based on the digital twin city model of the urban flood disaster can perform the functions of monitoring and warning automatically,commanding and dispatching timely and intelligently.

关 键 词：数字孪生 城市数字孪生体模型 系统架构 技术架构 城市洪涝灾害 评估与预警系统 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]