Research On The Distributed Network Communication Technology Of Fire Monitory System

The distributed network communication technology of fire monitory system is a new generation for automatic fire alarm monitoring system, which unites the auto alarming systems of the key units of fire safety and controls them centralized effectively, using signal acquisition technique, modern communication technology and computer network tchnology. In our country, the study of automatic fire alarm monitoring system started at the middle of 1990's, however, these constructures came to be confused, duing to the lack of criterion and the unit network communication protocol especially. It is necessary to solve the problems, therefore, we studied the networking mode of distributed automatic fire alarm monitoring system, and designed the monitoring system for Jinan city accordingly.Firstly, we told of the background and the statue of this subject both at home and abroad. The main work was mentioned totally, the concerning technology of the distributed realtime monitoring network communication was studied deeply. Then, we foused on the evolvement of mobile communication technology and the TCP/IP protocol which was important in network technology.Secondly, we studied the transmission mode of automatic fire alarm monitoring system at home, analysed the private wire communication, GPRS and CDMA wireless communication relatively. The GPRS network has the advantages of wide coverage area, flexible execution, high speed, real-time online and low cost, while, the Internet, mature technology, stabilization network and easily accessing. We designed the automatic fire alarm monitoring system based on GPRS and Internet as the final project, according to its character and requirement.Finally, we researched the process frame and design assignment in the concrete implementation. The whole system was divided into command module, control module, transfer module and data collecting module. The command module which consisted of central controlling software sent orders to remote terminals, the control module delivered alarming information of some certain unit to fire command center in time, the transfer module gathered data from the lower module with the whole buiding and the collecting module collected fire and device information. Such key technology as data acquisition and data storage were deeply studied.For the above researches, the distributed network communication technology of fire monitory system based on GPRS and Internet could meet the modern distributed monitoring system. And our design could provide guidance and reference for the similar product development.