烟雾浓度无线报警器设计.doc

烟雾浓度无线数据传输系统设计 摘 要：随着科技的发展，生活中的火灾隐患也越来越多，如何尽早发现火灾隐患，提前做好预警是减少火灾损失的一个重要课题。鉴于无线数据传输的发展，无线网络对于预警火灾有着更多的优点和便利，烟雾浓度无线数据传输系统能够节约成本，更加快速地预警火灾发生，减少火灾带来的人生和财产损失，所以对于烟雾浓度无线数据传输系统的研究有着重要的意义。 本系统主要是实现检测烟雾浓度并且通过无线数据传输将烟雾浓度数据采集传输到接收端，从而对烟雾浓度进行监控和报警。本系统主要以单片机为核心，系统由电源模块、传感器模块、数模转换模块、数据采集模块、无线传输与接收模块、报警模块、液晶屏显示模块组成。本设计将使用STC12C5A60S2单片机，该单片机自带A/D转换功能，比普通单片机能够实现的功能更多，使用更加方便。设计的系统中，烟雾浓度检测传感器则使用MQ-2传感器模块，这是一种离子式烟雾传感器，灵敏度高，能够更快地预警火灾发生。作为无线数据传输则使用NRF24L01无线数据模块，以实现无线数据的通信与传输。 关键词：烟雾浓度检测；无线数据传输；单片机；传感器  Design of Smoke Density Wireless Data Transmission System Abstract: With the development of technology, more and more fire hazards in our life. fire hazards how early detection , early warning is to reduce fire losses do an important topic . Given the development of wireless data transmission , wireless network for early warning of fire and has a little more convenient , smoke density wireless data transmission system to reduce costs and more quickly alert the fire, reduce the loss of life and property caused by fire , so the smoke concentration of wireless data transmission system study has important significance. The system is mainly to achieve the detection of smoke concentration and wireless data transmission through the smoke concentration data collection and transmission to the receiver, thus the smoke concentration monitoring and alarms. The system microcontroller as the core , the system from the power module , sensor module , digital to analog conversion module , data acquisition modules, wireless transmission and reception modules , alarm modules, LCD display module. This design will use STC12C5A60S2 microcontroller, the microcontroller comes with A / D conversion, more and more convenient to use than conventional single-chip functionality can be achieved . Design system, the smoke density detection sensor using the sensor module MQ-2 , which is an ionic -type smoke sensor , a high sensitivity , can alert the fire faster . As NRF24L01 wireless data transmission usi