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This project aims to develop an application for PC that allows to connect, analyze and show
data present on the OBD (On Board Diagnostic) CAN bus based system of any vehicle built
since 2008. The final goal is to run this application connected with a real vehicle, equipped
with a concrete OBD-II system.
It has been used an emulator from OZEN ELEKTRONIK to simulate the OBD system,
combined with an adapter cable from KVASER and a USB – CAN converter from the same
brand. The programming language chosen to develop the application was Visual Basic .NET.
In this thesis there is an initial introduction, with the objective and the goal of the project.
After that, the history of the OBD and the state of art are explained; this chapter in particular
wants to show the actual market supply, listing some examples of products already existent
with a short description for each one. The text continues with the characterization of the
instrumentation utilized and the specifications followed. Furthermore, there is an illustration
about the structure of the application and the forms that constitute the latter. The results
capitol speaks about the CAN messages exchanged between the device and the PC, with the
explanation of the meaning of each byte of these messages. Finally, there is a discussion about
economic costs and the environmental impact of the project. In the conclusions, a set of noconformity
of the device is listed, with the solutions adopted to solve each problem.
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