Internet of vehicles（IoV）is considered to be an important branch of Internet of things（IoT）,is the first application breakthrough in the IoT's area,is also a hot research topic for many years.Based on the research production of IoT,intelligent transportation systems（ITS）and Information network,the basic concept and architecture of IoV are described.At the same time,the research status of IoV is introduced.On this basis,the vehicular network architecture,communication mode,main function,application area and the technical difficulties are analyzed.Finally,consulted the IEEE 802.11p standard and the IEEE 1609 protocol stacks,the key technologies,protocols and communication standards of IoV's physical layer,MAC layer and the network layer are discussed.
