基于单片机的智能家居防火防盗系统设计(附程序代码)

基于单片机的智能家居防火防盗系统设计(附程序代码)(任务书,开题报告,论文9000字,程序代码)
摘要
当今社会是不断发展的，科学技术也是日新月异，人们对物质生活需求也逐渐提高，智能家居正一步一步地成为现代生活主要方式，除了提供更加舒适的家居环境之外，由此带来的安全问题也是大家所关注的和焦点。
本文将从硬件和软件两个方面作为重点，阐述基于单片机的智能家居防火防盗系统。单片机由于其体积轻便、控制能力强大以及功率损耗小等特点而被广泛应用。本设计将利用人体红外感应模块DYP-ME003来检测入侵信号，利用温度传感器ds18B20检测环境温度，利用烟雾传感器MQ_2检测可燃气体浓度，紧接着将接收到的信号传输到单片机进行处理，经过处理的信号发送至蜂鸣器、红绿LED灯从而实现声光报警。本设计中将采用按键对 烟雾浓度进行 ，将采用LED显示模块对系统温度和烟雾浓度进行显示。本设计具有 、方便使用等特点，有一定实用性。

关键词：单片机  防火防盗系统  ds18b20  MQ_2

Fire Alarm System for smart home based on MCU
Abstract
Today's society is constantly developing, science and technology are also changing with each passing day, and people's demand for material life is gradually increasing, smart home is becoming the main way of modern life step by step. In addition to providing a more comfortable home environment, the security problems brought by it are also the focus of attention.
This article will focus on two aspects of hardware and software, expounds the intelligent home fire protection and anti-theft system based on MCU. MCU is widely used because of its light size, powerful control ability and small power loss. This design will use the infrared sensor module DYP-ME003 to intrusion detection, detection of ambient temperature using the temperature sensor ds18B20, detection of combustible gas concentration using the smoke sensor MQ_2, then transmits the signal received to the microcontroller for processing, after processing the signal sent to the lights to achieve sound and light alarm.. The design will use the button to initialize the system temperature and smoke concentration, the LED display module will be used to display the system temperature and smoke concentration. The design has the advantages of simple structure and low price and stable performance and convenient use and so on. It has some practicability.

Key words: MCU  Fire Alarm System  ds18b20  MQ_2
 

目  录
摘要    I
Abstract    II
第一章 绪论    1
1.1防火防盗系统概述    1
1.2毕业设计任务    1
第二章 系统总设计    3
2.1系统总设计    3
2.2系统结构框图    4
第三章 系统硬件设计    5
3.1整体设计思路    5
3.2单片机AT89S52    5
3.2.1主要性能参数    5
3.2.2管脚说明    6
3.3人体红外感应模块DYP-ME003    9
3.4温度传感器DS18B20    10
3.5 烟雾传感电路    11
3.5.1烟雾传感器MQ-2    11
3.5.2 A/D转换芯片ADC0832    11
3.5.3 A/D转换电路    12
3.6报警电路    13
3.6.1按键    13
3.6.2蜂鸣器    14
3.6.3红绿LED灯    15
3.7显示电路    15
3.8整体硬件连接仿真图    16
第四章 系统软件设计    17
4.1整体设计思路    17
4.2温度采集处理    18
4.3烟雾采集处理    20
4.3.1标度变换    20
4.3.2数据采集    21
4.4显示电路    22
4.5主程序    24
第五章 程序仿真与分析    26
结束语    30
参考文献    31
致谢    32