基于dtmf电路ht9200a及modem芯片msm7512b的数据传输装置.doc
约49页DOC格式手机打开展开
基于dtmf电路ht9200a及modem芯片msm7512b的数据传输装置,基于dtmf电路ht9200a及modem芯片msm7512b的数据传输装置全文49页约15000字论述翔实摘要随着科学技术的发展,人们对各种单片机控制系统的功能要求越来越高。例如水、电、煤气表的自动抄录、ic卡电话机的话费统计及税控收款机等分布式系统中,人们希望能在中心机房通过公用电话网上进行适当的网络联接通过数据的...
内容介绍
此文档由会员 棉花糖糖 发布
基于DTMF电路HT9200A及MODEM芯片MSM7512B的数据传输装置
全文49页 约15000字 论述翔实
摘要
随着科学技术的发展,人们对各种单片机控制系统的功能要求越来越高。例如水、电、煤气表的自动抄录、IC卡电话机的话费统计及税控收款机等分布式系统中,人们希望能在中心机房通过公用电话网上进行适当的网络联接通过数据的传输实现对各测控点的监控。此外,通过电话网对自动化设备的远程调试、维修可以降低厂家的维修成本。借助在应用中编程技术,甚至可以单片机系统实现远程在线升级。由于MCS-51单片机及其兼容机型仍在国内单片机应用中占有重要位置,本文将选取AT89C51单片机,设计了基于DTMF电路HT9200A及MODEM芯片MSM7512B的数据传输装置。
关键词:通信,调制,解调,远程数据传输
Along with the technical development of science, the people control the function request of the system to various machine more and more high.For example the water, electricity, the coal gas form makes copy automatically, the words fee of the IC card telephone statistics and the tax controls to accept the payment machine etc. is in the distribute type system, the people hope centrally the engine room connects the data to deliver the realization through the network that goes forward to go the adequacy with the telephone net to each supervision that measures to control to order.In addition, pass the telephone net to the automation equipments of long range adjust to try, maintain and can lower the factory house to maintain the cost.Ask for help to weave the distance technique in the application, even can carry out the on-line upgrade of long range with a machine system.Because a machine of MCS-51 and it and still permit the model to occupy the important position in a machine application, this text will select by examinations a machine of AT89C51, design according to the DTMF electric circuit HT9200A and the MODEM chip MSM7512Bs of data deliver the device.
Keywords: communication; modulate; demodulate; long-distance data transmission
目录
前言 …………………………………………………………………… 1
第一章 硬件的设计
1. AT89C51 ………………………………………………………3
2. 74LS244 ………………………………………………………7
3. MSM7512B ………………………………………………………8
4. HT9200A ………………………………………………………13
5. ULN2003 ………………………………………………………17
6. LED 数码管 …………………………………………………… 18
第二章 电路的设计
1. 键盘的设计…………………………………………………… 19
2. 显示的设计…………………………………………………… 23
第三章 数据传输与软件
1. M7512B在数据传输中的应用……………………………………27
2. MSM7512B与标准Modem建立连接 ……………………………30
3. DTMF电路HT9200A与单片机的接口………………………… 35
参考资料 ………………………………………………………………… 37
附件:英文翻译……………………………………………………………38
参考资料:
1. 何立民.单片机应用技术选编(8). 北京航空航天大学出版社.2000
2. 程化平。MSM7512B在数据远传中的应用。力源电子工程,1999(3):24~25
3. MSM7512B数据手册。武汉力源电子股份有限公司,1999
全文49页 约15000字 论述翔实
摘要
随着科学技术的发展,人们对各种单片机控制系统的功能要求越来越高。例如水、电、煤气表的自动抄录、IC卡电话机的话费统计及税控收款机等分布式系统中,人们希望能在中心机房通过公用电话网上进行适当的网络联接通过数据的传输实现对各测控点的监控。此外,通过电话网对自动化设备的远程调试、维修可以降低厂家的维修成本。借助在应用中编程技术,甚至可以单片机系统实现远程在线升级。由于MCS-51单片机及其兼容机型仍在国内单片机应用中占有重要位置,本文将选取AT89C51单片机,设计了基于DTMF电路HT9200A及MODEM芯片MSM7512B的数据传输装置。
关键词:通信,调制,解调,远程数据传输
Along with the technical development of science, the people control the function request of the system to various machine more and more high.For example the water, electricity, the coal gas form makes copy automatically, the words fee of the IC card telephone statistics and the tax controls to accept the payment machine etc. is in the distribute type system, the people hope centrally the engine room connects the data to deliver the realization through the network that goes forward to go the adequacy with the telephone net to each supervision that measures to control to order.In addition, pass the telephone net to the automation equipments of long range adjust to try, maintain and can lower the factory house to maintain the cost.Ask for help to weave the distance technique in the application, even can carry out the on-line upgrade of long range with a machine system.Because a machine of MCS-51 and it and still permit the model to occupy the important position in a machine application, this text will select by examinations a machine of AT89C51, design according to the DTMF electric circuit HT9200A and the MODEM chip MSM7512Bs of data deliver the device.
Keywords: communication; modulate; demodulate; long-distance data transmission
目录
前言 …………………………………………………………………… 1
第一章 硬件的设计
1. AT89C51 ………………………………………………………3
2. 74LS244 ………………………………………………………7
3. MSM7512B ………………………………………………………8
4. HT9200A ………………………………………………………13
5. ULN2003 ………………………………………………………17
6. LED 数码管 …………………………………………………… 18
第二章 电路的设计
1. 键盘的设计…………………………………………………… 19
2. 显示的设计…………………………………………………… 23
第三章 数据传输与软件
1. M7512B在数据传输中的应用……………………………………27
2. MSM7512B与标准Modem建立连接 ……………………………30
3. DTMF电路HT9200A与单片机的接口………………………… 35
参考资料 ………………………………………………………………… 37
附件:英文翻译……………………………………………………………38
参考资料:
1. 何立民.单片机应用技术选编(8). 北京航空航天大学出版社.2000
2. 程化平。MSM7512B在数据远传中的应用。力源电子工程,1999(3):24~25
3. MSM7512B数据手册。武汉力源电子股份有限公司,1999