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This paper presents a star topology architecture system for the control of small home electrical appliances. The proposed system, based on wireless radio frequency technology, exploits the open Internet standards. The pilot project constructed a connection between a PC and two air conditioners through wireless modules and serial communication links with a new CRC algorithm based on star topology. The temperature and relative humidity detected by each air conditioner were transmitted to the PC and stored, and the PC controlled the on/off of the air conditioners and configured their operational parameters. The pilot system fulfills the expectations for centralized control of small electrical appliances. It has also proved to be a simple, stable, accurate, and easily maintained system.
Date of Conference: 22-24 June 2009