Review of the key technologies and applications in internet of vehicle

In recent years, traffic congestion, traffic accidents, environmental pollution and other issues are particularly prominent with the rapid development of urbanization, motorization. It is extremely important to send the road information to the user promptly so that the user can fully understand the road situation and make safer and smarter decisions on the road. Internet of Vehicle (IOV) as a typical application of the technology of Internet of Things (IOT) in the field of transportation system promotes the transportation system to move closer to the intelligent. This paper first introduces the basic concepts of IOV and the hierarchical architecture based on perception layer, network layer and application layer. Secondly, it points out several key technologies in the development of IOV. Finally, the related applications of the technology of IOV are briefly described.