基于话音和数据业务的固定网综合信息终端的协议及实现
摘要
在传统的固定电话网（PSTN）上实现短消息业务是一项新兴的技术。使用这项技术构建而成的综合信息平台可以以简便的使用方法、低廉的价格、丰富的业务种类为广大固定电话用户提供快速的信息服务，弥补了传统拨号上网终端设备复杂、链路建立时间长等缺点，有效地拓展固定网上的数据业务，提高了网络的利用率。
本文主要介绍了固定网短消息终端部分的协议规范和技术要求，并根据这些规范要求提出了一套完整的信息终端设计方案，其中详细论述了硬件平台和软件系统中各个模块的功能规划和设计思路。在硬件设计方面，本系统突破了规范中关于标准型终端的功能定义，使其具备了FSK上传的能力，加快信息的传输速度。在软件设计方面，系统对各个功能模块作了详细的规划并使用了μC/OS-Ⅱ嵌入式实时操作系统，从而简化了应用程序的设计，提高了终端系统工作的稳定性。文中的最后一章详细介绍了μC/OS-Ⅱ操作系统在MCS51系统平台上的移植过程，相信这将会对其它以MCS51为核心的硬件平台使用μC/OS-Ⅱ操作系统有所帮助。
经过实际运行测试，系统工作正常，基本达到了预先设计的功能要求。
Short Message delivery based on PSTN is a new technology that allows the transfer of Short Message between two fixed network terminals, or between one fixed network terminal and one mobile terminal. By this technology, the users of fixed network can get information more conveniently.
This paper mainly introduces the protocols and technical specifications of Short Message Terminal Equipment (SM-TE), and presents an integrated solution for SM-TE system that includes particular layout of hardware platform and software modules. The hardware platform supports FSK upload that is not required in standard SM-TE system configuration, this makes data transfer more rapid. In the aspect of software, the SM-TE system uses μC/OS-П Real-Time Operating System (RTOS) that simplifies the design of software modules and improves the stability of the system. In last chapter, this paper discusses how to adapt the μC/OS-П real-time kernel to the hardware system, which is also applicable to other systems based on MCS51 microprocessor.
The testing results of the SM-TE system indicate that the integrated solution is reasonable and applicable.
本文主要介绍了固定网短消息终端部分的协议规范和技术要求，并根据这些规范要求提出了一套完整的信息终端设计方案，其中详细论述了硬件平台和软件系统中各个模块的功能规划和设计思路。在硬件设计方面，本系统突破了规范中关于标准型终端的功能定义，使其具备了FSK上传的能力，加快信息的传输速度。在软件设计方面，系统对各个功能模块作了详细的规划并使用了μC/OS-Ⅱ嵌入式实时操作系统，从而简化了应用程序的设计，提高了终端系统工作的稳定性。文中的最后一章详细介绍了μC/OS-Ⅱ操作系统在MCS51系统平台上的移植过程，相信这将会对其它以MCS51为核心的硬件平台使用μC/OS-Ⅱ操作系统有所帮助。
经过实际运行测试，系统工作正常，基本达到了预先设计的功能要求。
Short Message delivery based on PSTN is a new technology that allows the transfer of Short Message between two fixed network terminals, or between one fixed network terminal and one mobile terminal. By this technology, the users of fixed network can get information more conveniently.
This paper mainly introduces the protocols and technical specifications of Short Message Terminal Equipment (SM-TE), and presents an integrated solution for SM-TE system that includes particular layout of hardware platform and software modules. The hardware platform supports FSK upload that is not required in standard SM-TE system configuration, this makes data transfer more rapid. In the aspect of software, the SM-TE system uses μC/OS-П Real-Time Operating System (RTOS) that simplifies the design of software modules and improves the stability of the system. In last chapter, this paper discusses how to adapt the μC/OS-П real-time kernel to the hardware system, which is also applicable to other systems based on MCS51 microprocessor.
The testing results of the SM-TE system indicate that the integrated solution is reasonable and applicable.
引文
[1]. 基于固定电话网短消息传送的技术要求和测试方法，中华人民共和国行业通信行业标准，2001
[2]. 孟旭东，固网短消息服务接口协议设计，南京邮电学院学报，2001年12月，第21卷，第4期
[3]. Access and Terminals (AT)；Short Message Service (SMS) for PSTN/ISDN；Short Message Communication between a fixed network Short Message Terminal Equipment and a Short Message Service Centre，ETSI Draft DES/AT-030009 v0.0.1, 2001.01
[4]. 电话主叫信息识别传送及显示功能的技术要求和测试方法，YDN069-1997，1997
[5]. Public Switched Telephone Network (PSTN)；Subscriber line protocol over the local loop for display (and related) services；Part1：On hook data transmission；Part2：Off-hook data transmission, ETS 3000 569, 1997.2
[6]. 吴运昌，电话机原理、使用与维修，北京：电子工业出版社，1994
[7]. 张毅刚 彭喜源 谭晓昀，MCS-51单片机应用设计，哈尔滨：哈尔滨工业大学出版社，1997
[8]. 马忠梅 籍顺心 张凯 马岩，单片机的C语言应用程序设计，北京：北京航空航天大学出版社，1999
[9]. JEAN J.LABROSSE著 邵贝贝译，μC/OS-Ⅱ——源代码公开的实时嵌入式操作系统，北京：中国电力出版社，2001
[2]. 孟旭东，固网短消息服务接口协议设计，南京邮电学院学报，2001年12月，第21卷，第4期
[3]. Access and Terminals (AT)；Short Message Service (SMS) for PSTN/ISDN；Short Message Communication between a fixed network Short Message Terminal Equipment and a Short Message Service Centre，ETSI Draft DES/AT-030009 v0.0.1, 2001.01
[4]. 电话主叫信息识别传送及显示功能的技术要求和测试方法，YDN069-1997，1997
[5]. Public Switched Telephone Network (PSTN)；Subscriber line protocol over the local loop for display (and related) services；Part1：On hook data transmission；Part2：Off-hook data transmission, ETS 3000 569, 1997.2
[6]. 吴运昌，电话机原理、使用与维修，北京：电子工业出版社，1994
[7]. 张毅刚 彭喜源 谭晓昀，MCS-51单片机应用设计，哈尔滨：哈尔滨工业大学出版社，1997
[8]. 马忠梅 籍顺心 张凯 马岩，单片机的C语言应用程序设计，北京：北京航空航天大学出版社，1999
[9]. JEAN J.LABROSSE著 邵贝贝译，μC/OS-Ⅱ——源代码公开的实时嵌入式操作系统，北京：中国电力出版社，2001