关键词: 物联网；情景感知；智慧城市；城市服务系统

Abstract:

As the city scale is becoming bigger and bigger, the governments at all levels are working on city Internet of things (IOT) and information system construction. Although the Internet backbone networks are set up and a large number of sensors are deployed which can collect numerous data on city behaviors, the poor information management mode hinders the realization of the value of information which should be used to promote service, and results in enormous waste. So we introduce the situational awareness technology to smart city services, and build a city service system based on situational awareness. Key techniques such as information collection, context information inference and service configuration model are employed to achieve realtime situation perception of the cities and provide intelligent business service portfolio. Experiments on a community smart management system verify the effect of the system designed in this paper.

Key words: the Internet of Things (IoT);situational awareness;smart city;city service system