Design Of The Leaking Current And Penventing Fire Control System Based On ATmega128

Leakage Fire alarm system is also known as residual current alarm system, it detects the leakage current line to determine the size of the possibility of fire, affords early prevention of fire and play with the existing fire protection system an important complementary role.Leakage fire alarm controller is the core of fire warning system. It can monitor, display and storage fire alarm signal, and can send the controlled signal to the automatic fire control device, but also take on the task of network terminal communications, is to realize the remote control important channel. This paper designs the practical application of hardward and softward of the leakage current control system.In the process of the system's real-time analysis,the research acquires the suitable method of software design by a large number of test data. Through the RS485 communication procedures, polling keys scanning procedures and LCD display program analysis, The system design that satisfying real-time performance requirements of the driver, and realize fault interface dispaly automatically, LCD energy-saving, overtime automatic leaped back the main interface. The design simplifies the overload current mathematical model that is a relatively large amount of calculation,analysis the trip under an overload situation and put forward more suitable trip scheduling algorith for this system- trip scheduling algorithm with proportion factor for overload current scheduling algorithm.This algorithm realizes the simplified calculation, accelerates the speed of system operation target.