AUDIO EQUIPMENT and TELEMATICS
NAVIGATION - GUIDANCE
GPS
What is the navigation system and
the GPS?
The satellite navigation system guides
What precautions should be
observed in order to make best use
of the system?
What is a point of interest (POI)?
A point of interest (POI) is
represented by an icon on
the map, it represents an
airport, a station, a town
hall, ...
the driver to the destination that he has Do not place anything on or near the
set in accordance with a chosen route. GPS aerial.
Initially, it searches for the destination Do not use any digital communication
required by the user, then it calculates equipment (personal computers, etc.)
the route and finally it provides the visual near the GPS aerial.
Up to 40 different icons may
be displayed (refer to the
section "Points of interest
icon").
and audible guidance instructions.
Do not affix any reflective films or films
containing carbon to the windows.
The GPS (Global Positioning The system's measurements may be
System) consists of several inaccurate if the vehicle is:
satellites distributed around
They are classified in 5 groups and
identified by one colour for each group:
-
-
-
in a tunnel or underground car park,
underneath a two-level motorway,
the earth. They continuously
transmit digital signals which
travel at the speed of light, on 2 different
frequencies.
At any given time, the system receives
its position in relation to the satellites
detected and the time of transmission
of the signal.
-
Shops, finance and businesses
(Green),
in an area with several very high
buildings,
surrounded by closely planted trees.
-
-
-
Vehicles and travel (Dark blue),
Restaurants (Orange),
Public places and emergency services
(Brown),
Entertainment and attractions (Blue).
-
Depending on the vehicle's situation and
the reception of the GPS information, the
displayed information may disappear from
the screen temporarily.
-
This enables the telematic unit to cal-
culate its position and therefore that of
the vehicle.
A repositioning process using the map
database stored on the hard disk allows
the vehicle to be positioned on the road
network, so improving the accuracy of
the vehicle location function.
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