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This paper introduces sensor unit of temperature and humidity is connected through 1-wire bus. Single chip microprocessor (SCM) AT89C52 processes measurement signal and drives equipments and it controls wireless transceiver chip nRF401 to complete data transmission between area monitor controller and work central station controller. Up PC is connected with control system though the USB controller...
This paper describes a composeable service platform that supports opportunistic collaboration among smart appliances deployed sporadically and incrementally in living and working spaces. This ubiquitous e-Helper's platform is UPnP based and is consisted of a three-level device/service abstraction and a protocol translation proxy. As the first experiment, the platform is used to perform indoor luminance...
This paper presents a practical application called "activity map" to serve as guidance to show ambient intelligence-related contextual information gathered from both humans and their surrounding environments. The activity map utilizes results inferred from a location-aware activity recognition approach to statistically show a resident's possibly interleaved activities along with corresponding...
Wireless sensor networks are often found in the fields of home security, industrial control and maintenance, medical assistance and traffic monitoring and the appearance of ZigBee/IEEE 802.15.4 indicates a network system which is highly reliable, cost-effective, low power consumption, programmable and fast establishing. Currently, many of the wireless sensor network systems are now using ZigBee to...
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