Vehicle-to-everything
Communication between a vehicle and any entity that may affect the vehicle / From Wikipedia, the free encyclopedia
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Vehicle-to-everything (V2X) is communication between a vehicle and any entity that may affect, or may be affected by, the vehicle. It is a vehicular communication system that incorporates other more specific types of communication as V2I (vehicle-to-infrastructure), V2N (vehicle-to-network), V2V (vehicle-to-vehicle), V2P (vehicle-to-pedestrian), V2D (vehicle-to-device).
V2X can be grouped into two supergroups, V2X using common communication technologies like bluetooth or mobile networks and V2X using a dedicated special communication technology. The main motivations for the dedicated V2X technology are road safety, traffic efficiency, energy savings, and mass surveillance. The U.S. NHTSA estimates a minimum of 13% reduction in traffic accidents if a V2V system were implemented, resulting in 439,000 fewer crashes per year.[1] Equally, V2X technology is already used in countries such as China, where different safety information is being communicated between vehicles to reduce road accidents.[2] There are two standards for dedicated V2X communication depending on the underlying technology being used: (1) WLAN-based, and (2) cellular-based.
The term V2X contains the following sub categories:
- Vehicle-to-Everything (V2X) - "communication between a vehicle and any entity that may affect, or may be affected by, the vehicle."
- Vehicle-to-Device (V2D) - Bluetooth / WiFi-Direct, e.g. Apple's CarPlay and Google's Android Auto.
- Vehicle-to-Grid (V2G) - information exchange with the smart grid to balance loads more efficiently.
- Vehicle-to-Building (V2B), also known as Vehicle-to-Home (V2H)
- Vehicle-to-Load (V2L)
- Vehicle-to-Network (V2N) - communication based on Cellular (3GPP) / 802.11p.
- Vehicle-to-Cloud (V2C) - e.g. OTA updates, remote vehicle diagnostics (DoIP).
- Vehicle-to-Infrastructure (V2I) - e.g. traffic lights, lane markers and parking meters.
- Vehicle-to-Pedestrian (V2P) - e.g. wheelchairs and bicycles, commonly also used to designate vulnerable road users (VRUs).[3]
- Vehicle-to-Vehicle (V2V) - real-time data exchange with nearby vehicles.