Development of car-to-computer interface and car-to-car broadcast for road safety enhancement - part 2

Abstract

This paper aims to enhance the road safety with the use of wireless communication for vehicular systems. The purpose of the Vehicular-to-Everything (V2X) communication is to create a vehicular ad hoc network of connected cars where vehicles within range can exchange information with each other for coordination and safety. To utilize the V2X communication, it requires the installation of physical infrastructure and vehicle-mounted devices. The project objective was to investigate on the raw Controller Area Network (CAN) messages from different vehicles and develop application logic for the CAN Decoder Application to detect the vehicular functions. The application was developed for the Cohda Wireless MK5 unit to decode the CAN messages from the host vehicle and exchange the information using V2X communication. CAN data were collected in the initial phase for the development of this application. For the scope of the project, the function of the CAN Decoder Application was focused on the detection of the seatbelt and door state of the host vehicle and notify rear approaching motorists for potential forward collision if the car door opens in the path of the motorist. From the application testing, it was concluded that the CAN Decoder Application was successful in decoding CAN messages from the Mazda 3 vehicle and it could integrate with the existing Intelligent Transportation Systems (ITS) Framework to broadcast the Basic Safety Messages (BSM) and Road Side Alerts (RSA) to other nearby vehicles. The success of the CAN Decoder Application can be extended to support other vehicles models in future investigations.