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众所周知,火灾给人民的生产生活造成的损失是无法弥补和挽回的。为了避免火灾以及减少火灾造成的损失,让人们的生活更加安宁,一次次触目惊心的教训要求我们必须设计并完善火灾自动报警系统,提高火灾预警能力,将火灾消灭在萌芽状态,最大限度地减少社会财富的损失。本系统以AT89S51单片机为控制器,结合温度传感器和烟雾检测器为火灾检测的敏感元件,采集的温度数据在本地通过LCD1602液晶显示器显示,当温度超过预设值时,本地蜂鸣器发声报警,LED火灾报警灯亮,实现本地声光报警;同时,SIM900A发送短信到指定的手机号实现远程报警。
It is well known that the loss caused by the fire to the people’s life and production is irreparable and irreparable. In order to avoid the fire and reduce the loss caused by the fire and make people’s life more peaceful, time and again the shocking lesson requires us to design and perfect the automatic fire alarm system, improve the fire alarm ability, eliminate the fire in its infancy and minimize the social Loss of wealth. This system takes AT89S51 single chip microcomputer as the controller and combines the temperature sensor and the smoke detector as the sensitive components of the fire detection. The collected temperature data is displayed locally by the LCD1602 liquid crystal display. When the temperature exceeds the preset value, the local buzzer audible alarm, LED fire alarm light, to achieve local acousto-optic alarm; the same time, SIM900A send SMS to the specified phone number to achieve remote alarm.