The Research Of Home Intelligent Control Net Based On Fieldbus

As the computer network and information technology is progressed home intelligent net is geting a more atention. The objective of home intelligent network is to use home bus technology to integrate all kinds of home devices,such as communication devices,home appliances and home security devices,into an intelligent home system. Based on the home system,home information and appliances can be centrally or remotely monitored,controlled and managed. Furthermore,this home system must be compatible with the home environment. However,it would take long time to realize this objective because at present the criterion of home intelligent network has not been unified and many technology problems still exist. The paper deeply analyzes the framework and introduce interrelated conception of home intelligent network,after that,it simply introduces the conception and development of fieldbus,analyzes and compares some kinds of dominating fieldbus,presents a model based on CAN bus of home control network after the study on the scheme and technology of home control network.The data from three meters (water meter,electricity meter,and gas meter) together with the signals from fire alarm,gas leakage alarm and theft alarm are collected and processed by CAN control net. At the same time,the above collected and processed data is sent up to PC and can meet lots of needs. The microprocessor of whole control net is PIC18F458 and designed application software with C language.The main software of PC use Delphi7.0. At present,the scheme achieves the remote control in local area network.Home intelligent net is novelty but its development is very rapid.This scheme advanced in this paper has those characteristics of high reliability and low cost,accordingly,works out a new supervisory and control system in home intelligent net.