A Smart City System Architecture based on City-level Data Exchange Platform

With the development of information technology and urban planning, there is a higher demand for the life quality of city people. In order to meet the demand for urban facilitation and intelligence, the research on smart city system has been widely discussed in recent years. However, existing researches mostly stay at the theoretical exploration stage, so a feasible and effective framework of smart city system which is suitable for Chinese national conditions is urgently demanded. In this paper, an implementation framework of smart city system is proposed based on city-level data exchange platform. To start with, three subsystems of smart city system are proposed and described, namely citizen-card system, intelligent transportation system, and urban regional health system. The citizen-card system is the foundation to realize smart city system, the intelligent transportation system is the core part of smart city system, and the urban regional health system is the crucial part of smart city system. Then a city-level data exchange platform and its algorithms are proposed, and the data exchange algorithms are also analyzed based on subscription and publishing mechanism. Finally, the proposed system architecture has been implemented and applied to Zhenjiang city, which is a city in Jiangsu province, China. The application performance of the proposed system architecture is also analyzed and discussed. The experimental results show that the proposed framework of smart city system is feasible and effective.