基于GSM的煤气表采集系统的设计作者姓名李朋朋专业电子信息工程指导教师姓名郭俊美专业技术职务讲师_目录摘要................................................1第一章绪论....................................31.1课题意义..............................................31.2本系统完成的功能......................................3第二章各模块方案选择............................32.1电源模块..............................................32.2单片机控制模块........................................42.3煤气流量传感器的选择..................................42.4键盘模块..............................................42.5显示模块..............................................52.6数字时钟电路..........................................52.7串口解决方案..........................................62.8GSM模块选择..........................................62.9数据存储器............................................6第三章系统硬件设计..............................73.1硬件总体结构..........................................73.2PIC18F458单片机简介.................................73.2.1高性能RISCCPU.....................................73.2.2外围功能模块特性....................................73.2.3高级的模/数转换特性.................................83.2.4CAN总线模块特性....................................83.2.5特殊的单片机特性....................................93.2.6FLASH技术..........................................93.3.煤气流量传感器电路的设计..............................93.4漏气检测电路的设计...................................103.5开阀熄火检测电路的设计...............................103.6通风扇控制电路.......................................113.7电磁气阀控制电路.....................................113.8红外键盘模块设计.....................................123.9电源电路的设计.......................................153.10时钟电路的设计......................................163.10.1时钟芯片DS1302简介...............................163.10.2DS1302硬件连接...................................173.11LCD液晶显示电路....................................173.12打印机模块..........................................183.13通过串口收发短消息..................................193.13.1GSM短消息技术简介................................193.13.2短消息特点........................................203.13.3收发短消息方式....................................213.13.4PDU编码..........................................213.13.5AT指令...........................................213.13.6发短消息..........................................223.13.7接收短消息........................................24第四章软件设计.................................254.1软件设计的主要步骤...................................254.2主函数流程图.........................................274.3数据采集，存储，查询软件设计.........................284.4红外健盘软件设计.....................................304.5GSM模块短信接收发送设计.............................31第五章实物效果.................................335.1本系统的控制按键说明.................................335.2各功能详细介绍.......................................34第六章结束语...................................40参考文献.............................................41附录...............................................42附录一：总原理图.........................................42附录二：主程序清单.......................................43致谢.....
