Automotive
GPS System
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Many of the
sophisticated control systems of modern automobiles require
measurements of the vehicle's attitude. Commercial GPS
attitude systems are the method of choice for measuring
attitude in many aircraft and farm vehicle applications, but
are not commonly used on automobiles. The prohibitive aspects
of commercial GPS attitude systems on a car include their
relatively high cost and significant loss of integrity and
signal availability in urban road environments.
Modern automobiles are
equipped with a variety of control systems that improve
passenger safety and comfort. Such systems include anti-lock
brakes, differential steering and cruise control. Recently,
automotive GPS systems have also been added to many cars for
use in positioning purposes, allowing the driver to view
his/her position on a map, and receive directions in real
time. The advent of GPS receivers in cars has initiated
efforts to enhance existing control systems, and to create new
ones such as car-following and lane keeping c |
ontrol. Many of these control systems require measurements of the
vehicle's attitude.
Some other kind interesting
integrations and functions of automotive GPS system are that the
color LCD screens on some automotive navigation systems can also be
used to display television broadcasts or DVD movies. Automotive
navigation systems can include personal information management for
meetings, which can be combined with a traffic and public transport
information system.
Having many advantages automotive
GPS systems have some of evils also as a number of road accidents
have been attributed to misdirection by satnav systems.
As the automotive GPS system has
many types a very interesting type of automotive GPS system is
portable GPS system. This type of GPS navigation device is not
permanently integrated into the vehicle, having only a simple
bracket to mount the device on the surface of the dashboard and
powered via the car cigarette lighter.
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