| The Digital Home Cloud System is the product of the combination of digital home and cloud computing, its primary purpose is to extract common technologies in the process of digital home for unified development and improvement, to achieve a goal into multiple use with once development. Traditional digital home development includes data acquisition, low-power network, database design, and terminal development, joint control et al, mostly based on embedded development, through the deployment of intelligent small embedded gateway. This kind of intelligent gateway-centric development model is difficult to solve the contradiction between the needs of low-power and intelligence, while facing the cost pressure of deployment.This system transfers the work of the intelligent gateway implementation to the cloud; replaces local storage for cloud data storage; changes embedded computing into distribute computing in the cloud, users and digital homes can achieve interoperability through the cloud. Cloud computing has low-cost and high-performance features, the import of cloud computing can achieve more sophisticated intelligent design, enhance the intelligent degree in the digital home.Firstly, this paper describes the status of the digital home and cloud computing, elaborates on issues facing the development of the digital home and the advantages of introduction of cloud computing, sorts out the functional requirements and performance indicators. Secondly, this paper analyzes the theories of the open source cloud computing framework Hadoop, designs the overall framework of the Digital Home Cloud System, and figures out the HBase table model to store the semi-structured data in digital homes, then makes association analysis from the files stored users’ history data to generate personalized linkage control rules by Map/Reduce. Finally, we program and test the system; use smart phones to control digital homes remotely, assessing the platform access capability and the data processing capability. |
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