城市轨道交通AFC系统线网读写器的标准与设计

Standards and Design of Card Reader and Writer for AFC System in City Rail Transit

介绍城市轨道交通AFC系统线网读写器概念形成的背景,阐述线网读写器设计标准化、独立化和通用化的三大要求:标准化指对读写器进行统一的定义和要求;独立化指读写器从车站终端设备中独立出来并摆脱对固定厂商的依赖;通用化要求在不同线路和厂商的终端设备之间通用互换,在此基础上总结提出线网读写器的定义。对早期国内主要城市制定的IC卡读写器标准的典型特点进行归纳和比较,分析读写器标准形成发展的特点和趋势,介绍当前线网读写器设计的最新要求,包括应用功能、硬件配置、接口标准、业务处理范围和调用方式等;重点论述读写器标准化设计的主要内容、独立化设计的核心思想和通用化设计的重难点问题,最后对线网读写器设计的未来发展进行展望。

This article reviews the background of concept formation of IC Reader and Writer in the AFC system of China Metro, pointing out the three main requirements in design： standardization, independence and tmiversalization. Standardization demands uniform definition and requirement to the Card Reader and Writer, independence means stand -alone from station equipment and certain manufacturers and universalization requires the Card Reader and Writer to implement exchange between equipment from different lines or suppliers. Then, the definition of line network level Card Reader and Writer based on these requirements were summarized and proposed. The features of standardized Reader and Writer among major cities are listed to be compared, and the characteristics and trend of development are analyzed and its recent characteristics are introduced, including application function, hardware configuration, interface standard, scope of business process and method of calling. The main contents, core idea of dependent design and key points in universal design are expounded emphatically. By the end of the article, the future development of Card Reader and Writer is discussed.