Abstract: V2X（vehicle to everything） refers to the direct connection between vehicle and vehicle, vehicle and infrastructure, vehicle and person, vehicle and cloud，what is widely regarded as the inevitable trend of the future development of vehicle. As vehicle become more connected, the vehicle change from a closed space to a node of the internet of everything. How to ensure the safety of vehicle communication is particularly important. The V2X CA（certification authority） certificate effectively guarantees the safety of the connected communication link, but normative standards about it have not yet been developed, industry promotion and awareness is not enough. On the other hand, it’s hard to get a visual idea of how V2X CA certificate work. Thus, a vehicle networking miniature model based on V2X CA have been proposed and introduced from base installation layer, data layer, application layer, scene display layer. 6 scenes have been design and configurat 

Key words: V2X CA, vehicle networking, miniature model, miniature vehicle, visualization system

摘要： V2X（vehicle to everything）车联网指车与车、车与路、车与人、车与云等直接互联，被普遍认为是汽车未来发展的必然趋势.随着车联网化程度提升，车由以往孤立的封闭空间变成万物互联的一个网络节点，如何保证车辆通信安全显得尤为重要.V2X CA（certification authority）证书可有效保证车联网通信链路安全，但由于尚未形成规范标准，行业推广和认识程度不够，且证书应用主要体现在通信数据流中，无法让人直观了解其工作原理.为此，本文提出了基于V2X CA的车联网微缩展示平台，从基础设施层、数据资源层、系统应用层和场景演示层分别进行了介绍.针对V2X实际场景，分别设计了证书申请、车车交互、车路交互、车人交互、车云交互、证书撤销6类场景下CA证书的交互验证，同时结合可视化系统对证书交互过程进行了同步形象展示，有助于V2X CA在车联网上的推广应用.

关键词: V2X CA, 车联网, 微缩展示平台, 微缩车, 可视化系统