Abstract
With the continuous economic development and the expanding size of cities,the industry and the civil architecture increase day by day,in order to effectively protect people’s property and production safety,fire autoalarm supervisory control system has become an integral part of the modern building .
Smoke, heat and flame always appear when fire happens ,so the smoke , heat and light are the important basis of fire detection.This graduation practice,it is a simple fire autoalarm control system which is based on heat (temperature) only.The whole system uses temperature sensors AD590 to collect the scene temperature ,and sends the electric output signal to the single chip microcomputer to realize the function of warning .When the temperature is higher than the limit temperature, the buzzer alarms, and system status indicator shows abnormal state.Upon examination, this design can function properly in the real environment and can achieve the desired functionality.
Keywords:Temperature Sensors AD converter Single Chip Microcomputer Fire Alarm