摘 要：近些年以来，随着当今社会家庭用电量的逐年增加，火灾发生率正在逐年上升，同时家庭火灾发生的可能性也逐年呈现上升趋势，在这样的社会环境和时代背景之下，火灾报警器也就应运而生，并且得到了飞速发展。本论文研究的课题是以STC89C51单片机为基础的火灾报警器，此报警器对于需要检测的环境中烟雾浓度值的判断是通过MQ-2烟雾传感器来完成的，同时结合有GSM模块，最终完成整个系统。在系统中采用的单片机是一种CMOS8微控制器，其主要优点是功耗相对于较低，同时性能相对于较高，能够在大多数的相关系统中得以应用，并且能够用一些高效率、简单快捷的方法来处理问题。在系统中选用的MQ-2烟雾传感器能够有效地检测出烟雾的浓度值，其主要优点在于有快速的响应速度、灵敏度以及抗干扰性较强，并且其使用寿命相对于较长，成本费用相对于较低等。在系统中选用的GSM模块是以GSM网络为基础，能够实现通信的基本功能，比如SMS短信息、语音通信等。
本论文中包含的图有11幅，表有2个，参考的文献资料有8篇。
关键词：火灾预防 传感器 报警器 单片机
Study on the Fire Alarm Designed by a 51 MCU
Abstract：In recent years, with the increase in household electricity consumption in today's society, the incidence of fire is increasing year by year, and at the same time, the possibility of home fires is also rising year by year. Under such a social environment and time background, fire alarms the device also came into being, and it has developed rapidly. The research topic of this thesis is based on the STC89C51 single-chip fire alarm system. The alarm value of the smoke concentration in the environment to be detected is determined by the MQ-2 smoke sensor. At the same time, a GSM module is incorporated to complete the entire process. system. The one-chip computer adopted in the system is a kind of CMOS8 microcontroller, its main advantage is the power consumption is relatively low, while the performance is relatively high, can be applied in most related systems, and can use some high efficiency, Simple and quick way to handle the problem. The MQ-2 smoke sensor selected in the system can effectively detect the smoke concentration value. Its main advantages are rapid response speed, sensitivity, and strong anti-interference, and its long service life is relatively long, and its cost is relatively low. At lower levels. The GSM module selected in the system is based on the GSM network and can realize the basic functions of communication, such as SMS short message and voice communication.
There are 11 figures included in this paper, there are 2 tables, and there are 8 reference literatures.
Key Words: Fire and marine insurance Alarm sensor sensor Singlechip
目 录
摘要 I
Abstract II
目 录 III
1 绪论 1
1.1火灾报警系统的当今发展 1
1.2 课题研究背景及意义 2
2 火灾自动报警系统的设计 4
2.1原始设计思路的提出 4
2.2传感器的型号选择 4
2.3火灾自动报警系统的总体设计 4
2.4火灾报警器的结构 5
2.5火灾检测报警器的功能 5
3 火灾报警系统硬件设计 基于51单片机的火灾报警器设计:http://www.chuibin.com/zidonghua/lunwen_206208.html