Vehicle Telematics System Design for Real-time Applications using Mobile Networks

Testing is an indispensable part of vehicle development to ensure the safety and reliability of the automobile. Engineers are required to collect essential data from the vehicle. This data serves the purpose of evaluating the vehicle’s performance and identifying any abnormalities in the mechanical and electrical systems. Presently, this task is commonly accomplished by attaching an offline data logger tool to the vehicle, which is inconvenient and unable to provide real-time data monitoring during road tests. This research aims to design and create a vehicle telematics testing system that provides high-speed and low-latency data transmission using a cellular network. In this work, we are interested in evaluating system performance between NB-IoT and 4G LTE technologies. The system utilizes the microcontroller to obtain the data from the vehicle’s CAN-bus system and send it to the server in real-time, along with WebRTC technology for real-time communication between server and client. With our proposed system, staff and engineers can instantly observe real-time vehicle metrics with latency as minimal as 42 milliseconds. Furthermore, the system not only eliminates the need for physical interaction with the vehicle but also significantly streamlines the future process of automobile testing and development.