【原创】燃气检测系统的设计.doc
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【原创】燃气检测系统的设计,摘要：智能燃气表是一种根据用户ic卡购气量实现自动计量收费，自动控制用气的民用高技术产品，它具有传统人工抄表收费式燃气表无可比拟的优越性，实现了燃气收费管理系统的电子化，信息化和网络化，智能燃气表及其收费管理系统已经呈现出广阔的应用前景。燃气表是在常规家用模式燃气表体上安装智能测控系统而构成的，本文详细介绍了该测控系统...
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摘要：智能燃气表是一种根据用户IC卡购气量实现自动计量收费，自动控制用气的民用高技术产品，它具有传统人工抄表收费式燃气表无可比拟的优越性，实现了燃气收费管理系统的电子化，信息化和网络化，智能燃气表及其收费管理系统已经呈现出广阔的应用前景。
燃气表是在常规家用模式燃气表体上安装智能测控系统而构成的，本文详细介绍了该测控系统，本文以AT89S52单片机为核心，通过流量传感器测得的燃气量经过信号放大电路进行A/D 转换，转换后的数字信号经过单片机处理控制微功耗电阀门，最后将燃气的累积数、燃气的可用数及IC卡中余额等信息通过LED显示器模块进行显示，本文还对燃气表的电源监控系统、射频卡模块、掉电存储系统、声光报警系统进行了设计。
关键字： 单片机 燃气表 预付费
Abstract：Intelligent gas meter is a according to user IC card gas for the realization of automatic meterage, automatic control of high technology using gas civil products, it has a traditional artificial copy meter charge type gas meter incomparable advantage and realize the charge of fuel gas management system, electronic information and network, IC card gas meter and its charge management system appears to have a broad application prospect.
Gas meter is in conventional household model gas meter installed on the body of the intelligent measurement system consists of, the article introduces the measurement and control system, this paper to AT89S52 SCM as the core, the flow sensor measurement of gas quantity after amplification circuit A/D conversion, after converting digital signal of the single chip micro control valve and will last electric power consumption of gas, the fuel gas of the cumulative number of available Numbers and IC card balance of information through the LED display module, this paper also shows the power of the gas meter of monitoring system, radio frequency card module, power lost storage system, sound and light alarm system design
Key words： Single-Chip Microcomputer Gas meter prepaid
目 录
摘 要 ...........................................................................................I
Abstract............................................................................................II
第1章 绪 论.......................................................................................1
1.1课题研究的目的与意义.......................................................................1
1.2 IC卡燃气表的发展现状.......................................................................2
1.3 IC 卡燃气表的发展趋势.....................................................................3
第2章 主电路的选择与设计.....................................................................5
2.1 整体方案论述................................................................................5
2.1.1 IC智能燃气表可以实现的功能..........................................................5
2.1.2 IC 智能燃气表的设计方案及系统组成.................................................5
2.1.3系统总体的控制过程.......................................................................6
2.2 IC卡燃气表主要元器件选择................................................................6
第3章 硬件系统的设计...........................................................................7
3.1 主控系统的设计...............................................................................7
3.1.1 主控芯片的介绍............................................................................7
3.1.2 主控电路...................................................................................10
3.3 射频卡模块..................................................................................11
3.4电源监控系统................................................................................12
3.5电磁阀驱动系.................................................................................14
3.6燃气流量传感器...............................................................................15
3.7 A/D转换器 ....................................................................................16
3.7.1 ADC0809概述 ..............................................................................16
3.7.2 ADC0809内部结构.........................................................................16
3.7.3 ADC0809转换原理.........................................................................18
3.8 燃气泄漏报警电路...........................................................................18
3.9 声光报警电路.................................................................................19
3.10 LED显示系统................................................................................20
3.11 扩展存储器的设计.........................................................................21
3.12 电源电路设计..............................................................................24
3.12.1电路工作原...理.........................................................................24
3.12.2电源电路调试 ...............................
燃气表是在常规家用模式燃气表体上安装智能测控系统而构成的，本文详细介绍了该测控系统，本文以AT89S52单片机为核心，通过流量传感器测得的燃气量经过信号放大电路进行A/D 转换，转换后的数字信号经过单片机处理控制微功耗电阀门，最后将燃气的累积数、燃气的可用数及IC卡中余额等信息通过LED显示器模块进行显示，本文还对燃气表的电源监控系统、射频卡模块、掉电存储系统、声光报警系统进行了设计。
关键字： 单片机 燃气表 预付费
Abstract：Intelligent gas meter is a according to user IC card gas for the realization of automatic meterage, automatic control of high technology using gas civil products, it has a traditional artificial copy meter charge type gas meter incomparable advantage and realize the charge of fuel gas management system, electronic information and network, IC card gas meter and its charge management system appears to have a broad application prospect.
Gas meter is in conventional household model gas meter installed on the body of the intelligent measurement system consists of, the article introduces the measurement and control system, this paper to AT89S52 SCM as the core, the flow sensor measurement of gas quantity after amplification circuit A/D conversion, after converting digital signal of the single chip micro control valve and will last electric power consumption of gas, the fuel gas of the cumulative number of available Numbers and IC card balance of information through the LED display module, this paper also shows the power of the gas meter of monitoring system, radio frequency card module, power lost storage system, sound and light alarm system design
Key words： Single-Chip Microcomputer Gas meter prepaid
目 录
摘 要 ...........................................................................................I
Abstract............................................................................................II
第1章 绪 论.......................................................................................1
1.1课题研究的目的与意义.......................................................................1
1.2 IC卡燃气表的发展现状.......................................................................2
1.3 IC 卡燃气表的发展趋势.....................................................................3
第2章 主电路的选择与设计.....................................................................5
2.1 整体方案论述................................................................................5
2.1.1 IC智能燃气表可以实现的功能..........................................................5
2.1.2 IC 智能燃气表的设计方案及系统组成.................................................5
2.1.3系统总体的控制过程.......................................................................6
2.2 IC卡燃气表主要元器件选择................................................................6
第3章 硬件系统的设计...........................................................................7
3.1 主控系统的设计...............................................................................7
3.1.1 主控芯片的介绍............................................................................7
3.1.2 主控电路...................................................................................10
3.3 射频卡模块..................................................................................11
3.4电源监控系统................................................................................12
3.5电磁阀驱动系.................................................................................14
3.6燃气流量传感器...............................................................................15
3.7 A/D转换器 ....................................................................................16
3.7.1 ADC0809概述 ..............................................................................16
3.7.2 ADC0809内部结构.........................................................................16
3.7.3 ADC0809转换原理.........................................................................18
3.8 燃气泄漏报警电路...........................................................................18
3.9 声光报警电路.................................................................................19
3.10 LED显示系统................................................................................20
3.11 扩展存储器的设计.........................................................................21
3.12 电源电路设计..............................................................................24
3.12.1电路工作原...理.........................................................................24
3.12.2电源电路调试 ...............................
