Design And Implementation On The Leaking Current Fire Alarming System

A leaking current fire alarming system is an important equipment to detect and prevent electric fire at its beginning. Along with the rapid development of information and network technology, it is possible to realize distributing intelligentize leaking current fire alarming system with real-time performance in network. This subject designed and implemented a leaking current fire alarming system which is based on MCU PIC16F877A.Firstly, through analyzing the present situation and developmental tendency of leaking current fire alarming systems, this paper pointed out the advantages of leaking current fire alarming systems and the researchful meaning of this subject.Secondly, function protection technology, software data processing algorithms and remote monitoring technology, which are the technical foundation of leaking current fire alarming system,was researched. According to the main technical target and functional need of the system,this paper constructed the holistic model of the system and gave the overall schemes of hardware and software.Thirdly, according to the hardware scheme, this paper designed MCU module, signal detection and circuit condition module, man-machine conversation module and remote monitoring module, and gave the concrete description of the usage of every interface and peripheral equipment.Fourthly, according to the software scheme, the paper used c language to develop software in MPLAB-IDE simulation system, it gave detailed algorithmic flow, software code implementation and procedure movement result, which ensured the security and stability,and minimized the complexity.Finally, completed debugging and testing of the system,This paper validated the system's function through the result of network formation.The testing result indicated that the system realized data collecting, real-time protection and remote monitoring functions, its data sensing precision, data rate of transmission, real-time of protection and anti-jamming have already met the design requirement. The design has also thought about the possibility of extension and upgrade, it was convenient for further development based on existing basis.