瓦斯报警(荟萃内容)

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目录

摘要··································错误!未定义书签。关键词·································错误!未定义书签。前言··································错误!未定义书签。

一、系统概述······························错误!未定义书签。

1.1 工作原理····························错误!未定义书签。

1.2 系统框图····························错误!未定义书签。

1.3 单片机的选择··························错误!未定义书签。

1.3.1单片机简介及发展趋势·····················错误!未定义书签。

1.3.2 选用单片机AT89C51及引脚说明·················错误!未定义书签。

1.4气体传感器的选择························错误!未定义书签。

1.4.1 MQ-4

1.4.2MQ-4的结构外形

1.4.3 MQ-4的测试电路及灵敏度调节

1.5 A/D模数转化器件ADC0809 ·····················错误!未定义书签。

1.6显示电路的选择

二、系统的硬件设计···························错误!未定义书签。

2.1 AT89C51最小系统························错误!未定义书签。

2.2 LCD显示模块··························错误!未定义书签。

2.3电源电路模块··························错误!未定义书签。

2.4 报警模块····························错误!未定义书签。

2.5 整体电路图···························错误!未定义书签。

三、系统软件设计····························错误!未定义书签。

3.1 主程序·····························错误!未定义书签。

3.2子程序设计···························错误!未定义书签。

3.2.1 中断子程序设计························错误!未定义书签。

3.2.2 报警子程序设计························错误!未定义书签。

四、系统仿真测试····························错误!未定义书签。

4.1 测试软件：PROTEUS软件和伟福编译器···············错误!未定义书签。

4.2 基本要求部分的测试与分析····················错误!未定义书签。

五、总结································错误!未定义书签。致谢··································错误!未定义书签。参考文献错误!未定义书签。

基于单片机技术的煤矿瓦斯报警系统研究

学生：鲁跃进

指导老师：郑胜

三峡大学理学院

摘要：本文概述了瓦斯监测报警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测报警器的设计与实现方法。瓦斯监测报警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，再设计上作了如下必要的考虑：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。系统的各个模块都它控制完成的。

本文针对目前情况设计一种井下便携式瓦斯监测报警器，当瓦斯气体浓度接近危险值时，自动发出报警，提醒井下工作人员立刻离开，同时此次设计的瓦斯监测报警器具有操作简便，运行稳定，检测比较准确的特点。

Abstract：This paper has outlined the gas detector present situation and its the basic principle, mainly elaborated the use monolithic integrated circuit realization gas detector 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 mineshaft use to carry conveniently, safe is reliable and so on the request, has made the following necessity consideration in the design: Considered the miniaturized measuring appliance the structure, as well as next improvement convenient, we have carried on the monolithic integrated circuit modular processing. System each module all controls by it completes.

The paper designs one kind of mineshaft portable gas detector in view of the present 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 this design is easy to operate and the design’s operation is stability, and the detection is more accurate.

关键字：瓦斯监测；单片机；报警

key words: gas monitoring；microcontroller,；alarm

前言单从我国技术发展上来说，我国在瓦斯监测监控系统的应用上起步较晚，上世纪80年代初才从国外引进了这一系统，而且仅用于部分国有重点煤矿，所以就瓦斯监测监控系统而言，目前也存在着不够完善的地方：第一，我国煤矿的瓦斯灾害防治技术虽已处于世界先进水平，但防灾抗灾的安全仪表和装备的技术水平与国外相比差距较大。第二，受技术条件限制，许多煤矿的瓦斯监测数据无法传输给集团公司或上级主管部门，仍未建立全集团或整个地区的瓦斯监测监控网络。第三，已安装的瓦斯监测监控系统型号各异，信号传输方式不尽相同，有的采取时分制，有的采取频分制，还有的利用载波传输，给系统的管理、使