基于C-V2X的交通信号采集系统设计及测试研究

Design and Test Research of Traffic Signal Acquisition System Based on C-V2X

为研究在蜂窝车联网(C-V2X)车路协同环境下,实现交通信号机与路侧单元设施以及中心平台间快速、稳定地进行信息传输,解决智能感知、协议解析、格式互转等问题,采用智能网联通信技术、信号控制及信号采集技术,构建基于C-V2X的交通信号采集系统,包括系统架构设计、接口设计以及功能设计,利用交通信号统一管控协议,对接不同型号、不同协议的交通信号机以及智慧交通系统。通过搭建实际道路测试环境,选择闯红灯预警的应用场景进行实车测试,结果表明该系统可以有效地为C-V2X智能网联系统提供准确的实时相位和灯态数据,在车路协同的具体应用场景中可以辅助驾驶员安全通过信号灯路口,提高信号灯路口的通行安全。

In order to study to realize the rapid and stable information transmission between the traffic signal and the roadside unit (RSU) facility and the central platform in the C-V2X vehicle-road collaborative environment,and to solve the problems of intelligent perception,protocol analysis,and format conversion.Intelligent network communication technology,signal control and signal acquisition technology are combined to build a C-V2X-based traffic signal acquisition system,including system architecture design,interface design,and functional design.Traffic signal unified management and control protocol are used to connect different models and different Agreement traffic signal,and intelligent transportation system.By setting up an actual road test environment,selecting the application scenario of red light warning for real vehicle testing,the test conclusion shows that the system can effectively provide accurate real-time phase and light status data for the C-V2X intelligent network connection system.In the specific application scenarios of vehicle-road cooperation,the system can assist drivers to pass signal intersection safely and improve traffic safety at signal intersection.