关键词: 数字孪生城市, 基础设施安全, 安全保障体系, 安全推演体系, 安全技术体系, 安全运营体系

Abstract: Digital twin city represents a new model of city digital transformation driven by information technology, fostering the modernization of cities. With the continuous concentration of urban data and information resources, the integration between digital twin cities and real cities has deepened, amplifying the security challenges facing digital twin city infrastructure. This paper addresses various difficulties confronting digital twin city infrastructure, including the complex security issues of heterogeneous systems, lack of theoretical model guidance, difficulties in assessing the impact of network attacks and optimizing security management strategies, and new technology security risk response. In response, we propose a safety and security assurance architecture tailored for digital twin city infrastructure, which encompasses management, technology, exercise, and operation systems. Additionally, we discuss some key technologies and platforms aligned with this assurance architecture, aiming to provide reference for the safety and security construction of digital twin city infrastructures.

Key words: digital twin city, infrastructure security, safety and security assurance system, safety and security exercise system, safety and security technology system, safety and security operation system