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Abstract
Modern automobiles are all controlled by a complex system of
computer electronics. These computers enable the cars of today to perform
tasks which would not have been thought possible just 20 years ago.
Along with the benefits of computer controlled automobile systems, however,
comes the complexity of a system which is now running at a highly optimized rate.
This means more moving parts, and therefore more potential for mechanical problems.
Many classically trained mechanics are not familiar with what these new
computers consist of, and more importantly, what information they can provide.
This project builds a device which will aid the user in diagnosing mechanical
problems by utilizing the data returned to the computer in the car, called the
Electronic Control Module (ECM).
This device consists of an in-car embedded system, designed around Dallas
Semiconductor TINI technology. This device reads and interprets data
produced by the ECM via a small filtering electronic device. The user is then
able to receive instant visual feedback via a local LCD display for real-time
diagnostics. The entire system also consists of a sever application for a
more robust display environment. This is connected to the TINI via a
networked wireless link. The user is able to remotely or locally monitor
up to 25 different sensors and feedback links located throughout the car in real time.
Utilizing this type of technology, mechanics can be much more proficient in
solving automotive problems. In addition, standard automobile operators can
be kept informed of various conditions placed on the car. |
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