本科毕业设计-基于单片机智能火灾报警系统的设计.doc

本科毕业设计 题　　目 基于单片机智能火灾报警系统的设计 学生姓名　 专业名称　 电子电气工程学院2011级通信工程 指导教师　 2015 年 5 月 8 日 基于单片机智能火灾报警系统的设计 摘要：伴随着时代不断的进步，人们越来越多的使用电子类设备，无论是家庭还是工厂使用的电器都越来越多，随之而来的是因为电器的不当使用所引起的火灾也与日俱增，我们的国家每年因为所用电器造成的火灾而损失很多。火灾不仅带来了物品财产上的损失，也带给了我们失去亲人的悲痛。所以研制出一款针对于家庭、宿舍等小环境的火灾报警系统是非常重要的。 本次设计以传感器和单片机作为烟雾报警器设计的核心器件，配合其它器件即可实现烟雾和温度报警等功能。设计中单片机选用STC89C52作为控制器件，传感器选用MQ-2型半导体可燃气体敏感元件烟雾传感器实现烟雾的检测。论文主要针对火灾报警系统中的各个组成部分及功能进行了详细的介绍和说明，在文章第二部分有该篇论文的总体方案设计，可设置烟雾浓度和高温报警值，当烟雾传感器检测到火灾释放的烟雾时，信号ADC0832进行处理模数转化再到单片机进行处理，当检测到浓度超标时，同时，此系统还可以检测温度，火灾发生往往环境温度会升高检测到温度超过设定的报警温度时候，蜂鸣器也将产生报警Design of fire alarm system for single chip computer Abstract: Along with the time progress, people more and more use of electronic equipment, whether it is family and factory use appliances are more and more, the attendant is caused by the improper use of electrical fire is also increasing, our country every year because the electricity is caused by the fire and lose a lot.?Fire not only brought goods property losses, but also bring us the grief of losing loved ones.?So developed a needle for families, dormitories and other small environment of the fire alarm system is very important. The design of the sensor and single-chip microcomputer as the core design of a smoke alarm devices, with other devices can realize the temperature and smoke alarm etc. function.?Design of MCU choose STC89C52 as control devices and sensors use mq-2 semiconductor combustible gas sensitive element smoke sensor to achieve smoke detection.?Paper for fire alarm system in each part and function of a detailed introduction and explanation, in the article the second part is the overall design of the thesis can be set up smoke concentration and high temperature alarm value, when the smoke sensor to detect fires release smoke, signal by ADC0832 were processing analog-to-digital conversion to single chip to carry on proc