Abstract
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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