Abstract: Various application scenarios are realized through the Internet of Things (IoT) in an urban rail transit system by adding various sensors and communication modules that enable the terminals of all technical fields to be controllable, manageable and interoperable. This paper analyzes the technology and development of IoT, mainly discusses the application of IoT technology in AFC systems of urban rail transit, studies the perception layer, network layer and application layer, provides the system architecture, and finally discusses the outlook for the development of urban rail transit industry based on IoT.

Key words: Internet of Things, rail transit, AFC system

摘要： 物联下的城市轨道交通系统，通过增加各种传感器、通信模块使得各专业终端设备可控、可管、可互通，从而实现各种应用场景。对物联网行业的技术和发展进行分析，主要探讨物联网技术在城市轨道交通自动售检票系统的应用，针对感知层、网络层和应用层进行研究，并给出系统架构，最后对基于物联网技术的城市轨道交通行业发展进行展望。

关键词: 物联网, 轨道交通, 自动售检票系统