454962
114
Zoom out
Zoom in
Previous page
1/142
Next page
112
Appendix NAVI/AV
quality is poor, only two dimensions, latitude and
longitude, can be obtained and positioning errors
are somewhat greater.
Positioning by dead reckoning
The 3D Hybrid Sensor in the main unit also
calculates your position. The current location is
measured by detecting driving distance with the
speed pulse, the turning direction with the
Gyrosensor, and inclination of the road with the G
sensor.
The 3D Hybrid Sensor can even calculate
changes of altitude, and corrects for
discrepancies in the distance travelled caused by
driving along winding roads or up slopes. Also,
the Navigation System learns the driving
conditions and stores information in the memory;
thus, as you drive more, the precision of the
positioning becomes more accurate.
The method of positioning changes as follows
depending on whether the speed pulse of your
vehicle is detected or not:
3D hybrid mode
This is active when the speed pulse is detected.
Inclination of a road can be detected.
Simple hybrid mode
When the speed pulse is not detected,
positioning is performed in this mode. Only
horizontal movement is detected, so it becomes
less accurate. Also, when the positioning by GPS
is not available, such as when your vehicle enters
a long tunnel, the discrepancy between your
actual and calculated position may become
bigger.
The speed pulse data comes from the speed
sensing circuit. The location of this speed
sensing circuit depends on your vehicle
model. In some cases, it is impossible to
make a connection to it, and in such a case
we recommend that the ND-PG1 speed pulse
generator (sold separately) be used.
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
3D Hybrid Sensor. However, if only the data from
the 3D Hybrid 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 3D Hybrid Sensor and used to
correct it for improved accuracy.
To ensure maximum accuracy, the dead
reckoning system learns with experience. By
comparing the position it estimates with your
actual position as obtained using GPS, it can
correct for various types of error, such as tyre
wear and the rolling motion of your vehicle. As
you drive, the dead reckoning system gradually
gathers more data, learns more, and the
accuracy of its estimates gradually increases. So,
after you have driven some distance, you can
expect your position as shown on the map to
show fewer errors.
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. The system detects the fact
that the tire diameter has changed, and
automatically replaces the value for
calculating distance.
If the ND-PG1 is used or if your vehicle is
operating in Simple hybrid mode, the distance
calculation value cannot be replaced
automatically.
MAN-CNDV-50MT-EN.book Page 112 Wednesday, May 4, 2005 1:49 PM
114


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Pioneer CNDV-50MT at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Pioneer CNDV-50MT in the language / languages: English as an attachment in your email.

The manual is 9,25 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Pioneer CNDV-50MT

Pioneer CNDV-50MT User Manual - Dutch - 152 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info