基于单片机的瓦斯监控系统的硬件设计
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基于单片机的瓦斯监控系统的硬件设计
电子信息工程专业
［摘 要］本文概述了瓦斯监控器的现状及其基本原理，主要论述了利用单片机实
现瓦斯监控器的设计与实现方法。瓦斯监控器是一种采用单片机控制的智能化仪表，为
了满足煤矿井下使用携带方便、安全可靠等要求，在设计上作了如下的必要的考虑：考
虑到小型化仪表的结构，以及今后改进的方便，我们将单片机进行了模块化处理。系统
的各个模块都由它控制完成。
本文针对目前情况设计一种井下便携式瓦斯监控器，当瓦斯气体浓度接近危险值时
自动发出报警，提醒井下人员立刻离开。该设备同时还具备灵敏度调节和检测强度调节
开关，有简单、方便、准确、实用等特点。
［关键词］单片机；瓦斯气体检测；气敏传感器；报警
Hardware Design of Gas Monitoring System Based on MCU
Electrical & Information Engineering Major
Abstract: Thi s p a p e r h as o ut l i n e d t h e g a s d e te c t or p re s e nt si t ua t i o n a nd i ts th e b as i c
p r i n c i p l e , m a i n l y e l a b o r a t e d t h e u s e m o n o l i t h i c i n t e g r a t e d c i r c u i t r e a l i z a t i o n g a s d e t e c t o r
design and the realization method. The gas detector is one kind the intellectualized measuring
appliance which uses the monolithic integrated circuit to control, in order to satisfy the coal
mine mine shaft use to carry conveniently, safe is reliable and so on the request, has made the
f o l l o w i n g n e c e s s i t y c o n s i d e r a t i o n i n t h e d e s i g n : C o n s i d e r e d t h e m i n i a t u r i z e d m e a s u r i n g
a p p l i a n c e t h e s t r u c t u r e , a s w e l l a s n e x t i m p r o v e m e n t c o n v e n i e n t , w e h a v e c a r r i e d o n t h e
m o n o l i t h i c i n t e g r a t e d c i r c u i t m o d u l a r p r o c e s s i n g . S y s t e m e a c h m o d u l e a l l c o n t r o l s b y i t
completes.
T h i s p a p e r d e s i g n s o n e k i n d o f m i n e s h a f t p o r t a b l e g a s d e t e c t o r i n v i e w o f t h e p r e s e n t
situation, when the gas gas density approaches the dangerous value, automatically sends out
reports to the police, the reminder mineshaft personnel leaves immediately. At the same time
t h i s e q u i p m e n t a l s o ha s t h e s en s i t i v i t y a d j u s t m e nt a n d t h e e x a m i n a t i o n i n t e n s i t y r e g u l a ti n g
cock, has simply, convenient, accurate, is practical and so on the characteristic.
Key words: AT89C51; Gas gas detection; Angry quick sensor; Reports to the police
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