烟雾火光报警无线传输及显示设计

论文总字数：31867字

摘 要

现代社会，随着科技的高速发展，人们生活水平的不断提高，大街上除了汽车还有大量的电动车，电动车在拥堵的大都市道路上实在是一个很好的选择，但是随着电动车数量的增多，电动车引发的事故也在随之上升，尤其是因为电动车充电而引起的火灾，甚至是人员伤亡事件。所以本课题将研究一款检测电动车充电器周边是否有烟雾和火光的烟雾火光无线传输报警器。烟雾火光无线传输报警器由烟雾传感器、火焰传感器、无线传输模块和单片机构成。

本系统介绍了烟雾火光无线传输报警器各个模块的原理与基本知识，以及整个系统的设计过程和工作原理。实现了通过烟雾和火光的检测，检测到信号之后通过无线传输模块进行远距离的报警。通过该报警器的无线传输来对住户进行及时的报警，使住户有充足的时间处理危机或者拥有充足的逃生时间。通过实验检测，该系统基本满足设计需求。

关键词：烟雾传感器；单片机；火焰传感器；无线传输模块

Wireless Transmission and Display Design of Smoke and Fire Alarm

Abstract

Modern society, with the rapid development of science and technology, the continuous improvement of people's living standard, there are a lot of electric cars besides cars in the street. Electric cars are really a good choice on the congested roads in big cities. But with the increasing number of electric vehicles , accidents caused by electric vehicles are also on the rise , especially the fire caused by electric vehicle charging , even casualties. Therefore, this topic will study a smoke and fire wireless transmission alarm to detect whether there is smoke and fire around Electric car charger. The smoke and fire wireless transmission alarm consists of smoke sensor, flame sensor, wireless transmission module and single chip microcomputer.

This system introduces the principle and basic knowledge of each module of smoke and fire wireless transmission alarm. As well as the design process and working principle of the whole system. The detection of smoke and fire is realized, After the signal is detected, a remote alarm is carried out through the wireless transmission module. Through the wireless transmission of the alarm, timely alarm can be given to residents, So that residents have enough time to deal with the crisis or have enough time to escape.Pass the test, The system basically meets the design requirements.

Key words: Smoke sensor; Single chip microcomputer; Flame sensor; Wireless transmission module

目 录

摘 要.................................................................................I

Abstract..............................................................................II

第一章 绪 论...........................................................................1

1.1 概述...........................................................................1

1.2 选题背景和意义.................................................................2

1.3 主要研究内容...................................................................2

第二章 主要设计内容....................................................................3

第三章 主要元器件的选择与介绍..........................................................4

3.1 核心控制器的选择与介绍.........................................................4

3.2 烟雾传感器的选择与介绍.........................................................5

3.3 火焰传感器的选择与介绍.........................................................7

3.4 继电器的介绍...................................................................8

3.5 无线模块的选择与介绍...........................................................9

第四章 系统的硬件电路.................................................................11

4.1 系统总原理图..................................................................11

4.2 烟雾传感器的原理图及分析......................................................11

4.3 火焰传感器的原理图及分析......................................................12

4.4 继电器的原理图及分析..........................................................12

4.5 无线模块的原理图及分析........................................................13

4.6 系统的总实物图................................................................13

第五章 程序的解析.....................................................................14

5.1 主程序流程图..................................................................14

5.2 NRF24L01无线传输程序..........................................................17

5.3 设置时间同步..................................................................19

5.4 显示屏控制....................................................................20

5.5 报警的子程序..................................................................21

5.6 掉电保存......................................................................22

第六章 烟雾火光无线传输报警器的实测...................................................23

6.1 实验检测道具..................................................................23

6.2 实验检测过程及分析............................................................23

6.3 实验检测过程中所遇到的问题分析................................................24

第七章 结束语.........................................................................25

致谢..................................................................................26

参考文献（References）................................................................27

附录..................................................................................28

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