Positioning Technology - Pioneer AVIC-Z910DAB Operation Manual

Bluetooth
Error-10
→ The power failed for the Bluetooth
module of this product.
– Turn the ignition switch to OFF and
then to ON.
If the error message is still displayed after
performing the above action, please
contact your dealer or an authorised
Pioneer Service Station.
Apple CarPlay
Attempting to connect to Apple CarPlay.
→ Communication failed and the system is
trying to connect.
→ Wait for a while. Then, perform the
actions below if the error message is still
displayed.
– Restart the iPhone.
– Disconnect the cable from the iPhone,
and then connect the iPhone again
after a few seconds.
– Turn the ignition switch to OFF and
then to ON.
If the error message is still displayed after
performing the above action, please
contact your dealer or an authorised
Pioneer Service Station.
Android Auto
Z910DAB
Android Auto has stopped.
→ The connected device is not compatible
with Android Auto.
– Check if the device is compatible with
Android Auto.
→ The startup of Android Auto failed for
some reasons.
– Disconnect the cable from the
smartphone, and then connect the
smartphone again after a few seconds.
80
En
– Restart the smartphone.
– Turn the ignition switch to OFF and
then to ON.
If the error message is still displayed after
performing the above action, please
contact your dealer or an authorised
Pioneer Service Station.
→ The time set in this product is not
correct.
– Check if GPS signals are received and
the time is correctly set.
Bluetooth pairing failed. Please pair your
Android phone manually.
→ The Bluetooth pairing failed for some
reasons.
– Pair this product with the device
manually.
To use Android Auto, please stop your car
and check your Android phone.
→ The default settings are displayed on
the screen of the Android Auto
compatible device or images are not
output from the Android Auto
compatible device.
– Park your vehicle in a safe place, and
follow the instructions displayed on
the screen. If the error message is still
displayed after performing on-screen
instructions, please reconnect the
device.

Positioning technology

Positioning by GPS
The Global Positioning System (GPS) uses a
network of satellites orbiting the Earth.
Each of the satellites, which orbit at a
height of 68 900 000 feet (21 000 km),
continually broadcasts radio signals giving
time and position information. This
ensures that signals from at least three can
be picked up from any open area on the
ground's surface.
The accuracy of the GPS information
depends on how good the reception is.
When the signals are strong and reception
is good, GPS can determine latitude,
longitude and altitude for accurate
positioning in three dimensions. But if
signal quality is poor, only two dimensions,
latitude and longitude, can be obtained
and positioning errors are somewhat
greater.
Positioning by dead reckoning
The built-in sensor in the navigation
system also calculates your position. The
current location is measured by detecting
driving distance with the speed pulse, the
turning direction with the gyro sensor and
inclination of the road with the G sensor.
The built-in sensor can even calculate
changes of altitude, and correct the
discrepancies in the distance travelled
caused by driving along winding roads or
up slopes.
If you use this navigation system with
connecting the speed pulse, the system
will become more accurate than no
connection of speed pulse. So you connect
the speed pulse without fail to get the
accuracy of positioning.
• The position of the speed detection
circuit vary depending on the vehicle
model. For details, consult your
authorised Pioneer dealer or an
installation professional.
• Some types of vehicles may not output a
speed signal while driving at just a few
kilometres per hour. In such a case, the
current location of your vehicle may not
be displayed correctly while in traffic jam
or in a car park.
How do GPS and dead reckoning
work together?
For maximum accuracy, your navigation
system continually compares GPS data
with your estimated position as calculated
from the data of built-in sensor. However, if
only the data from the built-in sensor is
available for a long period, positioning
errors are gradually compounded until the
estimated position becomes unreliable. For
this reason, whenever GPS signals are
available, they are matched with the data
of the built-in sensor and used to correct it
for improved accuracy.
• If you use chains on your wheels for
winter driving or put on the spare wheel,
errors may suddenly increase because of
difference in wheel diameter. Initialise the
sensor status and it may recover the
accuracy to normal condition (page 67).
Map matching
As mentioned, the positioning systems
used by this navigation system are
susceptible to certain errors. Their
calculations may, on occasion, place you in
a location on the map where no road
exists. In this situation, the processing
system understands that vehicles travel
only on roads, and can correct your
position by adjusting it to a nearby road.
This is called map matching.