Electric Fire Monitor System Of Leakage Current And Temeperature Based On CAN-bus

We are in an era of electrification. High-rise blocks and a wide range of electrical applianceseverywhere, and high-rise in a variety of cables criss-cross, aging, leakage and the use of electricalappliances caused by illegal use,electrical fire hazard exists.As the high frequency of occurrence of electrical fire, the occurrence of a random place andtime, particularly the characteristics of hazards, the National Fire Authority have worked andmodified a number of policies and regulations, some high-rise building fire protection equipment,mandatory installation of electrical, electronic fire control system is facing enormous businessopportunities.This article first Fire Department in recent years with the Ministry of Public Securitystatistics, analysis of the causes of electrical fires, explained the dangers of electrical fires and theneed for electrical fire. Shows the electrical fire monitoring system research significance.Second, the article describes the electrical fire alarm system in the above, the development ofdomestic and foreign. Pointed out the areas in which deficiencies in China. For a number of busdefects, this paper performance of the CAN bus as the communication bus. And Zhou, who’s iCANagreement has been simplified to develop a truly applicable to the design, performance, highlyefficient and stable MYCAN agreement. Use this protocol to achieve data communications andnetwork management.This design of electrical fire monitoring system consists of a maximum of 200 nodes withelectrical fire control equipment and electrical fire monitoring detectors. Electrical fire monitoringdetector to detect the line for the remaining current (leakage current) and temperature. Monitoringequipment and through the CAN bus communication between the detector. Monitoring equipmentto monitor real-time display of the node running, once detected leakage alarm or temperature alarms,surveillance equipment and detector signal can be audible and visual alarms, and monitoringequipment in place and what the above alarm alarm, and storage police records.According to national standard "electrical fire monitoring system" requirements and designrequirements, the design of the electrical fire monitoring equipment for the control of the core chipAT90CAN128, given its power button, display, CAN communications and printer circuit and hasdone a detailed analysis. Detectors based on low-cost PIC24HJ64GP506 control chip, gives theleakage current conditioning circuit and the temperature and make the acquisition circuit analysis.While this detector for monitoring equipment and software design ideas and make a description ofthe core code.Finally, the paper sums up the entire remainder of the agreement based on MYCAN-electrical current and temperature monitoring system designed to fire up the results and performanceindicators. Suggestions to improve future product direction and design ideas...