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摘要随着单片机技术和传感器技术的日益成熟，基于单片机的各种防火防盗系统在社会上发挥着越来越重要的作用。在我们所生活的校园里，火情盗情时有发生，一套适用于学校宿舍的防火防盗系统急需产生。本文将给大家介绍一种简单的适用于宿舍的智能防火防盗系统。该系统主控单元选择了AT89C51单片机，利用单片机控制温度传感器、烟雾传感器、热释电红外传感器等进行室内温度、火情以及人员进出的监测，再通过单片机对检测结果进行相应的处理，最终实现有情况发出声光报警以及宿舍无人提示锁门的功能。此外该系统还有4位的键盘用来密码解锁声光报警。相信该系统会对宿舍的人员财产安全带来一定的保障。26746
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在系统的硬件设计中，采用开发经验丰富，价格低廉的AT89SC51单片机为系统核心，温度传感采用的器是DS18B20温度传感器，烟雾传感器采用的MQ-2烟雾传感器，人体检测则是采用热释电红外传感器，显示模块采用的是LCD1602，键盘的设计则是采用4位的独立按键。
在系统软件设计中，是以Keil uVision3为开发环境，采用C语言编写系统程序。程序包括主程序模块，LCD1602液晶模块，DS18B20模块，人员进出以及人数统计模块，报警模块。
系统电路设计在仿真软件Protues中，系统实际调试与实现通过使用51单片机开发板和部分搭建的外围电路。
毕业论文关键词: 单片机 传感器 声光报警 防火防盗
毕业设计说明书（论文）外文摘要
Title Dormitory intelligent fire anti-theft alarm system
Abstract
With the development of the microprocessor technology and sensor technology becomes more mature, all kinds of fire alarm system of single chip computer is playing an increasingly important role in the society based on. We are living in the campus, the fire theft occurred, amuch-needed fire alarm system suitable for the school dormitory have. This paper introduces an intelligent fire alarm system of simple applicable to dormitory to everyone. The system main control unit, select the AT89C51 microcontroller, control the use of single-chip temperature sensor, smoke sensor, fire and staffmonitoring, and then through the microcontroller on the test results for the corresponding treatment, the ultimate realization of the situation with sound and light alarm and hostel noprompt lock function. In addition, the system also has 4 keyboard for password to unlock thesound and light alarm. Believe that the system will bring some security for the dormitorypersonnel and property safety.
In the hardware design of the system, using the development experience, the low price ofAT89SC51 single chip as the system core, using the temperature sensing device is DS18B201-wire bus temperature sensor, smoke sensor using MQ-2 smoke sensor, the human body detection is the use of a pyroelectric infrared sensor, the display module is used in LCD1602,the design of the keyboard is the use of 4 independent keys.
In the software design of the system, is based on the Keil uVision3 development environment,using C language program of system. The program includes main program module, LCD1602 LCD module, DS18B20 module, and the number of staff and statistics module, alarm module
The circuit design of the system in the simulation software Protues, the system debugging andrealized by using 51 microcontroller development board and some peripheral circuitstructures.
Keywords: SCM Sensor Sound and light alarm Fire alarm
目 次
1 引言1
2设计任务与基本要求2