C-V2X规模化信息交互测试评估平台设计  

C-V2X test and evaluation platform design and implementation for large-scale information interaction

作　　者：王博思 祖晖 吴超 张迪思[1] 陈新海 孙棣华[2] WANG Bosi;ZU Hui;WU Chao;ZHANG Disi;CHEN Xinhai;SUN Dihua(Chongqing Vehicle Test&Research Institute Co.,Ltd,Chongqing 401122,China;School of Automation Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆车辆检测研究院有限公司,重庆401122 [2]重庆大学自动化学院,重庆400044

出　　处：《激光杂志》2020年第9期178-181,共4页Laser Journal

基　　金：重庆市技术创新与引用示范专项产业类重点研发项目(No.cstc2018jszx-cyzdX0064);重庆市留创计划创新类项目(No.cx2019062)。

摘　　要：智能网联汽车和车路协同系统在全世界范围内得到快速发展,测试评估技术决定了智能网联汽车发展速度,然而,现有的智能网联汽车测试评估系统没有一套高效的方法,可以验证智能网联汽车和车路协同系统在复杂交通场景下的通信能力。设计了基于C-V2X通信技术的规模化信息交互测试评估平台,该测试评估平台可灵活部署于实验室和室外实验场。平台中单个测试节点所发送BSM(Basic Safety Message,基本安全消息)消息的最高发送频率可设置为50Hz,同时模拟5台背景车辆;平台通过部署少量的节点即可模拟出复杂交通条件下的C-V2X通信场景,解决了智能网联汽车或车路协同无法得到有效验证的问题。测试结果表明:通过无线电综合测试仪的比对测试,在不同速率下的有效发包率均保持在99%以上;在拥有16辆模拟网联汽车的交通环境中,终端的丢包率达到17.28%,V2X应用功能失效;因此,该平台具有较强的规模化信息交互测试评估能力,可以对外开展C-V2X终端测试评估实验业务。Connected Autonomous Vehicles(CAV)and Intelligent Vehicle Infrastructure Cooperative Systems(IVICS)have developed rapidly around the world.However,the traditional testing methods cannot verify their communication capabilities in complex traffic scenarios effectively.This paper designs and implements a C-V2X Test and Evaluation Platform for large-scale communication environment.The platform can be flexibly deployed in a test field or laboratory.The maximum transmission frequency of Basic Safety Message(BSM)of a single test node can be set to 50 Hz,which could simulate 5 background vehicles at the same time in the scenarios.This means that the platform can simulate the C-V2X communication scenario in complex traffic conditions by deploying a small number of nodes.In the comparison tests with wideband radio communication tester,the effective packet delivering rate(PDR)of the platform at different rates is maintained at more than 99%.This proves the validity of the data sent from the platform.In addition,through the self-developed C-V2X terminal test,it is found that packet loss rate of the terminal is 17.28%in a traffic environment with 16 simulated CAVs,which means V2X application function failure.Hence,the platform has ability for C-V2X test and evaluation,and can carry out C-V2X terminal testing and evaluation services.

关 键 词：智能网联汽车 车路协同系统 C-V2X 规模化信息交互 测试评估 

分 类 号：TN249[电子电信—物理电子学]