Development of on-board unit in vehicular ad-hoc network for highways

This paper proposes a design and implementation of the On-Board Unit (OBU) in the Vehicular Ad Hoc Network (VANET) for highways, and realizes vehicle-to-vehicle (V2V) communication. The system is divided into four parts including central control module, wireless communication module, GPS module, and human-machine interface module. The hardware platform is consisting of an ARM11-based embedded development platform, DCMA-86P2 module, and a GPS module. The software platform is based on the embedded Linux operating system. The human-machine interface is developed using the Qtopia programming software. Test results show that the OBU implemented can transmit and receive information for safety assistance driving, and the system has realized all the functions required and can work stably.