Aims: To build an appended Ethernet port in automobile and display the diagnostic data on the web browser. Study Design: Ethernet port enables the automobiles for real time performance testing, diagnosing, data logging, vehicle monitoring, and remote diagnosing over IP. Place and Duration of Study: Embedded Systems Lab, Vellore Institute of Technology, Vellore, between June 2012 and July 2013. Methodology: The numerous diagnostic data available from On Board Diagnostic (OBD) port of modern automobiles is extrapolated to promising network technologies like Ethernet. Results: Acquired engine parameters from the OBD port of an automobile and displayed them on to an LCD, these real time engine parameter readings were transferred to the internet and accessed from the web browser. Conclusion: The diagnostics of a car normally requires a person to take his car to an authorized service center where the mechanic uses a Scan Tool to diagnose the car which is usually time consuming. A more profound way to diagnose a car is using your laptop which is connected via Ethernet to your car. This allows you to diagnose your car at your own convenience, so that whenever the Malfunction Indicator Light of your car goes ON one can know and fix the fault as it occurs.
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