首先介绍了从数字城市到智慧城市的发展趋势，阐述了智慧城市的概念及其相关支撑技术，探讨了智慧城市的内涵：在数字城市建立的基础框架上，通过物联网将现实世界与数字世界进行有效融合，由云计算中心处理其中海量和复杂的计算，为城市管理和公众服务提供更智能化的服务。总结了智慧城市的特征，归纳了智慧城市在当前城市建设中可开展的应用，并指出智慧城市的建设可以为城市提供更智能化的服务和更安全的技术保障，同时，剖析了智慧城市中存在的信息组织无序、安全、共享及产权等问题，并从标准、法律、技术和应用等方面提出了有效的对策，为智慧城市的建设提供可靠和有效的探索，最后展望了更加安全、高效的智慧城市美好前景。% Firstly, the trend of development from Digital City to Smart City is introduced. The concept of smart city and its key supporting technologies are described as well. Then, we discuss the intrinsic meaning of Smart City: based on the basic framework established by Digital City, efficient integration of the real world and digital world through the Internet of Things and massive and complex calculations by cloud computing center provide more intelligent services for city management and public services. Furthermore, major characteristics of Smart City are summarized and several related applications are put into practice. All of those applications prove that Smart City could provide more intelligent services and securer technical support. Meanwhile, we analyze the disorganized information, security, sharing and property rights issues that still exist in the Smart City. In addition, this paper provides effective countermeasures from aspects of standards, laws, technology and applications, and makes reliable and efficient exploration for the construction of the Smart City. Finally, a prospect of promising future of Smart City is presented.
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