Since 2008 when IBM first brought forward the idea of "Smart Planet", it has applied information and communications technology into sensing, analyzing and integrating all kinds of critical information within the core city functioning system so as to make smart response to the demands of cities; hence smart city construction and social development have been highly integrated and smart city became a new engine for achieving transformation into a knowledge-based economy and for information industry and modern city upgradation. This paper, by way of literature review and comparative analysis, focuses on the problems in the planning of Liaoning province and makes a conclusion of smart city development in Liaoning in the following areas: Related policies about smart city have been worked out; standard system takes shape; information infrastructure has been comprehensively upgraded and fine management is growing. Through analysis of the problems in smart city development such as lack of standard in information integration, this paper puts forward the idea of establishing smart and effective cyber security system and giving top priority to innovation and transformation in smart city planning so as to promote social progress.
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