OBD-II (On-Board Diagnostics II) is a system that allows vehicle owners or repair technicians to access to the state of vehicle's health information. However, users usually need scan tools to access to the system. Although some products from OEM (Original Equipment Manufacturer) offer remote diagnostic features, only few vehicles are able to utilize this service. In this work, we design an OBD-II decoding interface that can permanently connects to the serial port of OBU (On Board Unit). We also integrate them into the InfoQ system to provide real-time monitoring capabilities and remote diagnostic services. Users can immediately realize the problem of vehicles, and find out solutions either on board or on the web. Available functions in this system are front-end real-time diagnosis, diagnostic trouble codes notifications and suggested actions, oxygen sensors testing, driving records and idle detection alarms, etc.
TSP InfoQ OBD-II