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The seamless combining with context-aware sensors and numerous devices and e-home server will soon become a part of our home environment in the near future. We name it as a context-aware home based on ubiquitous computing concept. This context-aware home reduces participations of users in order to realize a ubiquitous computing and automates various services. Therefore, the risk of privacy violation...
Aimed at the defects of intelligent electronic household appliances with higher producing cost, and the standard was not unified. This paper analyzed the technical schemes of Embedded Internet in the world at present, combined with the development needs of intelligent community, and used AT91SAM9260 as the host controller, designed a Home Intelligent System which has several merits such as credible,...
Sensor networks pledge to solve many monitoring problems: thousands of small inexpensive devices can be easily deployed in any environment and can provide measurements about diverse phenomenons, such as temperature, pollution, birds migration, etc. As sensors are low-capabilities, battery powered devices, several protocols have been proposed to maximize their lifetime, but only recently research has...
In this paper, we present a design approach and implementation result of home control devices for standby power reduction. The proposed mechanism uses the IEEE 802.15.4 based ZigBee protocol between Host and Agent for communication and security. Experimental results demonstrate that in the proposed mechanism, standby power consumption by Agent (consumer device) can be reduced by 200 mW.
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
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