可燃气监测报警器——软件设计_毕业论文.doc

可燃气监测报警器——软件设计 电子信息工程 [摘 要] 随着城市煤气、天然气事业及化学工业的迅速发展，易燃、易爆的气体种类和应用范围在不断增加，这些易燃易爆气体在生产和使用过程中，一旦发生泄露将会引起中毒、火灾、爆炸等重大事故。在人们对安全生产的重视程度和生产技术手段不断提高的同时，可燃气体监测报警器正广泛地应用在这些领域中。可燃气体监测报警器是预防易燃易爆气体在生产和使用过程中发生泄露的报警装置。为了防止这类事故的发生，装设可燃气体监测报警器是非常必要的，可以及时发现事故隐患，及早采取补救措施。 本论文主要阐述了可燃气体监测报警器的软件设计。报警器的总体工作流程是： A/D转换芯片将传感器送来的模拟量转化成数字量送给单片机，然后进行数字滤波，数据处理，将电压信号转化成为对应的浓度值。最后，将实际可燃气体浓度送数码管显示，当有可燃气体浓度超出设定的限定值时，则单片机将驱动蜂鸣器实现报警功能。对应的软件设计包括：主程序设计，数字滤波设计，数据处理设计，气体浓度显示设计，报警设计等几个部分。 实验表明，本方法设计的可燃气体监测报警器具有性能稳定，测量准确等优点，因此，是一种具有较好实用价值的气体监测装置。 [关键词] 报警器；传感器；单片机；蜂鸣器 Combustible Gas Monitor Alarm Apparatus - - Software Design Electronic and Information Engineering Abstract: With the city gas, natural gas utilities and the chemical industry is developing rapidly, flammable, explosive gas type and range of applications is increasing, the flammable and explosive gases in the process of production and use, in the event of leakage will be caused by poisoning, fires, explosions and other major incidents. People of the importance of safety in production and the production of technical means to continuously improve, the combustible gas alarm monitoring is widely used in these areas. Combustible gas alarm monitoring is the prevention of explosive gas in the production and use of the leakage occurred during the alarm. In order to prevent the occurrence of such incidents, the installation of combustible gas alarm monitoring is essential to the timely detection of potential causes of accidents and take remedial measures.  This paper elaborated on combustible gas alarm monitoring software design. Alarm overall workflow is: A / D conversion chip will be sent to the analog sensors into digital to the microcontroller, and then proceed to digital filtering, data processing, the voltage signal into the corresponding concentration value. Finally, the actual concentration of combustible gases to send digital display, when the concentration of combustible gases in excess of the limit value set, then the realizati