煤气报警器的设计与实现

The Design and Implementation of the Gas Alarm

随着人类生活水平的不断提高,煤气的使用已经越来越广泛了,在人们生活资源使用中扮演了必不可少的角色。虽然带了的是更多的便利,但是因为煤气泄漏而带来的灾难也更是让我们后怕,给我们的人身、财产带来了重大威胁。因此如何设计一款报警器来防止煤气泄漏已经成为我们非常关注的。该次设计的系统主要是对于煤气泄漏检测的技术加以改进,时时监控报警。主要是运用气敏传感器对煤气独特的感应,当有空气中有煤气时,气敏传感器表面就会出现电荷层,从而会形成电压,而这个电压又和煤气的浓度息息相关。也就是运用到这个原理,就很容易实现空气中煤气浓度的检测模块。通过这样的一个模块,将采集到的电压信号经过ADC0809转换为单片机所能识别的电压信号,经单片机的判断来决定是否超过设定浓度值,超过浓度上限值则会实现报警的功能。这样就可以实现煤气的检测和智能化报警的目的。

with the continuous improvement of human living standards, the use of gas has been more and more widely, in people'slife plays an essential role in resource use. Although is more convenient, but because the gas leak and bring disaster also is to let usto dying, brought a major threat to our personal and property. So how to design a alarm to prevent gas leakage has become we arevery concerned about.The design of the system is mainly for the gas leak detection technology is improved, and constantly monitoralarm. Is mainly using gas sensor to unique induction gas, when there is gas in the air, gas sensor surface layer charge will occur,which will form the voltage, and the voltage and the gas concentration is closely linked. Which is applied to this principle, it is easyto realize the detection module of gas concentration in the air. Through such a module, converts voltage signals were collectedthrough ADC0809 single-chip computer can identify the voltage signals, the microcontroller judgment to decide whether or notmore than the set density, more than the upper limit concentration can realize the alarm function. So that you can achieve the goalof intelligent gas detection and alarm.