论文总字数：17580字
摘 要
电动车起火引起的火灾，发生频率高，起火迅速，危害较大，为保护人民生命财产安全，争取逃生时间，采用早期预警是十分重要的。而在报警传输中，无线传输需要器材少，适应性突出，所以本文主要论述了以NRF24L01无线接收模块和MSP430单片机为主体的烟雾火光信号的无线接收及报警设计。设计主要利用无线接收模块，单片机，蜂鸣器等元器件组装实现，完成对报警信号的无线接收并发出报警声。
报警装置通过无线传输模块接收报警信号，把信息传给单片机处理，信息处理完成后，将数据发送到显示模块并给蜂鸣器通电。显示屏接收到数据后，将火警时间和类型显示出来，蜂鸣器发出高分贝的报警声音，最后保存报警数据。此设计的硬件构成较为简单，容易实现，便于调整。
关键词：报警装置；nrf24l01;msp430单片机；蜂鸣器；显示屏
Wireless Receiving and Alarm Design of Smoke and Fire Signal
Abstract
Electric car fire caused by the fire, high frequency, fire quickly, greater harm, in order to protect people's lives and property safety, for the time to escape, the use of early warning is very important. But in the alarm transmission, the wireless transmission needs less equipment, adaptability is outstanding, so this paper mainly discusses the NRF24L01 wireless receiving module and MSP430 MCU as the main body of the smoke light signal wireless reception and alarm design. The design mainly USES the wireless receiving module, single-chip microcomputer, buzzer and other components assembly to achieve, complete the wireless reception of the alarm signal and alarm sound.
The alarm device receives the alarm signal through the wireless transmission module and transmits the information to the MCU for processing. After the information processing is completed, the data is sent to the display module and the buzzer is energized. After receiving the data, the display will display the fire alarm time and type, the buzzer will send out a high-decibel alarm sound, and finally save the alarm data. The hardware composition of this design is simple, easy to realize and easy to adjust.
Key words: alarm device; NRF24L01; MSP430 microcontroller; buzzer; display screen
目 录
摘 要...............................................................................Ⅰ
Abstract...............................................................................Ⅱ
- 绪 论..........................................................................1
- 选题背景........................................................................1
- 选题意义........................................................................1
- 主要研究内容....................................................................2
- 烟雾火光信号的无线接收及报警设计的总体设计.......................................3
2.1 引言............................................................................3
2.2 烟雾火光信号的无线接收及报警装置的总体设计......................................3
2.3 主要设计器件的选取..............................................................4
2.3.1 单片机的选取..............................................................4
2.3.2 无线传输模块的选择........................................................4
2.3.3 显示器的选择..............................................................5
2.3.4 报警模块的选择............................................................5
2.4 本章小结........................................................................5
第三章 硬件设计.........................................................................7
3.1 引言............................................................................7
3.2 单片机系统......................................................................7
3.2.1 MSP430介绍................................................................7
3.2.2 单片机的掉电保存..........................................................8
3.3 无线接收模块....................................................................9
3.3.1 NRF24L01 无线传输模块.....................................................9
3.3.2 SPI通信协议..............................................................10
3.4 显示屏模块.....................................................................11
3.5 报警模块.......................................................................12
第四章 验证............................................................................13
4.1 实物组装.......................................................................13
4.2 报警装置调试...................................................................13
第五章 结束语..........................................................................15
致 谢...............................................................................16
参考文献（References）.................................................................17
附录 A 实物图..........................................................................18
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