Development of Commercial Vehicle Speed Warning System
The use of commercial road vehicles has grown with the recent rapid economic growth in the world, but reckless speeding of these heavy vehicles has resulted in fatal accidents leading to loss of innocent road users lives. Although it is generally recognized that the majority of the heavy vehicle...
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| Format: | Thesis |
| Language: | English English |
| Published: |
2006
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/217/1/549048_FK_2006_11.pdf |
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| Summary: | The use of commercial road vehicles has grown with the recent rapid economic growth
in the world, but reckless speeding of these heavy vehicles has resulted in fatal accidents
leading to loss of innocent road users lives. Although it is generally recognized that the
majority of the heavy vehicle drivers on the road are law biding citizens, there is,
however, a small but highly conspicuous percentage that persist in speeding and
operating their vehicles in an unsafe and reckless manner. Due to these reasons, the
commercial vehicle speed warning system is designed and developed to monitor the
commercial vehicle speed and determine if the vehicle has exceeded the preset speed
limit.
This warning system consists of two subsystems, the in-vehicle subsystem and the
peripheral interface subsystem and both subsystems are designed by using the
MC68HC11E9 microcontroller in conjunction with the AxIDE program. The in-vehicle
subsystem is fitted into the vehicle for speed monitoring, whereas the peripheral
interface subsystem, which is connected to the host computer, allows the proper calibration of the in-vehicle subsystem as well as the data downloading. A toothed wheel
is built as the vehicle engine model to test the warning system in the laboratory and the
radio frequency serial communication module is used to establish communication link
between these subsystems and both subsystems will support the same communication
protocol.
The basic concepts of in-vehicle speed detection is developed and achieved, and the
wireless data setting and retrieving system is designed, which provides control over the
in-vehicle subsystem functions. |
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