摘要:承接着日益发展的今天,应答器广泛的应用于客运专线和高速列车线路上.应答器在欧洲已经应用多年,是高速列车可靠、有效的信息传输工具.在国内,应答器借鉴国外技术,尚处在研究、革新阶段,在CTCS标准中,点式应答器作为在特定地点为列车定位和传递地面信息的关键和基础而存在,具有不可替代的作用。本课题的内容也主要从应答器设备的功能、组成和工作原理出发,通过基于单片机芯片AT89S51与MF RC500的电路与软件流程设计,以及对应答器中报文编解码系统的研究来从中了解应答器的主要原理和功效流程。并且在设计中,主要运用MS232电平转换器、看门狗复位程序以及RFID技术,从而使整个设计完整合理安全。硬件部分可以使用软件来画出框图,并在此基础上试着搭建自己的系统电路,把各个功能模块组成一个系统,继而完成设计。目前,应答器在国内并没有成品和相应的测试环境,也有许多棘手的问题等待去解决。9281
关键词:应答器;列车控制系统; AT89S51;MF RC500
Design of microcontroller-based vehicle transponder
Abstract:With continuously increase of the train speed, the transponder device has become important foundation equipment for high-speed train control system, and it is also the new equipment which was introduced by the signal system. Many of them include a high-tech; including radio frequency identification (RFID).The topics research the function, composition and working principle of the transponder device.Then through the design of hardware circuitry and software process, which based on the singlechip AT89S51 and MF RC500, weunderstand the main principles and processes of transponder from the research of message encoding and decoding system.And in the design, I mainly use the MS232 level converter; the watchdog reset procedures and RFID technology to entire the whole design completely, reasonablyand safely. In the part of the hardware,we can use Protel to draw the schematic of the hardware connection.I try to build my own systemcircuit on this basis and to compose a system with these various functional modules.Then I will complete the design.Whiletransponder is still in its infancy in China's research and application, so the project has greatresearch and development space.
Keywords: transponder;CTCS;AT89S51;MF RC500
目 录
1 绪论 1
1.1 课题的目的与意义 1
1.2应答器在国外的历史、发展及工作状态 1
1.3应答器在国内的历史、现状及发展前景 3
2 应答器设备的原理及功能 6
2.1 CTCS列车控制系统的介绍 6
2.2应答器设备的组成和工作原理 7
2.2.1 应答器设备的组成 7
2.2.2 应答器设备的工作原理 8
2.3应答器设备的功能和优点 8
2.4射频识别(RFID)的原理及介绍 9
2.4.1射频识别(RFID)的原理及基本介绍 9
2.4.2射频识别(RFID)在列车控制系统的应用 11
2.5应答器设备的电路设计 13
2.5.1系统结构与工作原理 13
2.5.2系统硬件设计 14
2.5.3系统软件设计 25
3应答器报文编解码系统的初步研究 28
3.1 基本内容 28
3. 2 主要方法..29
4应答器设备的应用 31
4.1 应答器设备在高速铁路中的应用及规范 31
4.2查询应答器的设置原则 33
结论 35
致谢 36 AT89S51单片机的车载应答器设计方案:http://www.751com.cn/zidonghua/lunwen_7933.html