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针对车辆移动节点的路由机制和通信信息安全问题,从网联汽车的地理位置和通信安全出发,设计实现了一个融合了IPv6技术的车载通信系统,在C2C子层参考并优化了Cargeo6开源项目实现基于地理位置的单跳广播通信和多跳广播路由;在路边设施RSU中使用NAT技术实现车联网内部IPv6地址与公网地址的有效切换,同时引入IPv6中的IPsec技术来保证网联汽车通信信息的安全性.最后,在校园IPv6网络中验证了系统的通信性能,测试结果表明:该通信系统在实际场景中可实现多跳路由,单跳最远通信距离为450m左右,实现了实际场景中低时延、高可靠的数据传输.
Aiming at the problem of routing mechanism and communication information security of mobile nodes in vehicles, this paper designs and realizes an in-vehicle communication system which integrates IPv6 technology based on the geographical position and communication security of the networked vehicles. The C2C sub-layer references and optimizes the implementation of Cargeo6 open source project Single-hop broadcast communication based on geographical location and multi-hop broadcast routing; use of NAT technology in roadside facilities RSU to achieve effective switching of intranet carnet address and public address, and IPV6 technology introduced in IPv6 to ensure that the Internet of Vehicles Communications The security of information is verified.Finally, the communication performance of the system is verified in the campus IPv6 network.The test results show that the communication system can realize multi-hop routing in the actual scenario and the farthest communication distance of single hop is about 450m, which realizes the actual scene Low latency, high reliability data transfer.