Internet of Vehicles
The Internet of Vehicles is an emerging industry form that deeply integrates new generation network communication technology with automobiles, electronics, road transportation and other fields. Intelligent connected cars are equipped with advanced on-vehicle sensors, controllers, actuators and other devices, and integrate modern communication and network technologies to realize intelligent information exchange and sharing between cars, roads, people, clouds, etc., with complex environment perception, intelligence Decision-making, collaborative control and other functions can realize a new generation of cars that are "safe, efficient, comfortable and energy-saving".
1.System framework
The Internet of Vehicles (IoV) system is a three-layer system of "end, management, and cloud".
(1) End system. The end system is the smart sensor of the car, responsible for collecting and acquiring the smart information of the vehicle, and sensing the driving status and environment; it is a ubiquitous communication terminal with in-car communication, inter-vehicle communication, and car network communication; it also allows the car to have IoV addressing and network Devices with capabilities such as trusted identification.
(2) Pipe system. The management system solves the interconnection between vehicles, vehicles and roads, vehicles and networks, vehicles and people, etc., realizes communication and roaming between vehicle ad hoc networks and various heterogeneous networks, and ensures real-time and Serviceability and network ubiquity, it is the unity of public network and private network.
(3) Cloud system. The Internet of Vehicles is a cloud-based vehicle operation information platform. Its ecological chain includes ITS, logistics, passenger and freight, critical vehicles, auto repair and auto parts, car rental, enterprise vehicle management, auto manufacturers, 4S stores, and vehicle management , insurance, emergency rescue, mobile Internet, etc., are the convergence of massive information from multiple sources, so they require cloud computing functions such as virtualization, security certification, real-time interaction, and mass storage. Their application systems also revolve around vehicle data aggregation, calculation, scheduling, A composite system of monitoring, management and application.
2. Link method
The Internet of Vehicles is a comprehensive network link between vehicles and cloud platforms, vehicles and vehicles, vehicles and roads, vehicles and people, and in-vehicle devices.
(1) Communication between the vehicle and the cloud platform means that the vehicle realizes information transmission with the Internet of Vehicles service platform through wireless communication technologies such as satellite wireless communication or mobile cellular, receives control instructions issued by the platform, and shares vehicle data in real time.
(2) Vehicle-to-workshop communication refers to the exchange and sharing of information between vehicles, including vehicle status information such as vehicle location and driving speed, which can be used to determine road traffic conditions.
(3) Communication between vehicles and roads refers to the exchange of information between vehicles and roads with the help of fixed communication facilities on ground roads, which is used to monitor road surface conditions and guide vehicles to choose the best driving path.
(4) Vehicle-to-human communication means that users can communicate with vehicles through wireless communication means such as Wi-Fi, Bluetooth, and cellular, allowing users to monitor and control the vehicle through corresponding mobile terminal devices.
(5) Communication between in-vehicle devices refers to the transmission of information and data between devices within the vehicle. It is used for real-time detection and operation control of device status, and the establishment of a digital in-vehicle control system.