Lincoln Blackwood (2002) Navigation System [39/48] Glossary

GLOSSARY

Map CD

Compact Disc with CD-i format. CD which contains data only readable by

a special CD player. Digitized road maps, city maps and a database of

facilities of special interest (for example parking, hotels, restaurants, gas

stations etc.) are stored on a map CD.

GPS

Global positioning system: A system for determination of the exact

position by receiving data from several earth orbiting satellites. To

calculate a precise position at least four satellites have to be receivable

simultaneously. The GPS receiver calculates the vehicle position with the

received GPS signals. The satellite icon is displayed in green color as

long as sufficient GPS data is received.

Gyroscope

One of the sensors used for calculation of the current vehicle position.

The gyro is located in the navigation computer. It measures changes in

the vehicle’s direction.

Navigation computer

The core component of the navigation system. The navigation computer

compares the data on the map CD with the signals coming from the

sensors and from the GPS receiver and calculates the current vehicle

position. Also route planning and guidance functions are handled by the

navigation computer.

SDVC

Speed dependent volume control: For compensation of engine, wind and

rolling noise of the vehicle the voice volume is increased dependent on

the vehicle speed. The increase of the voice volume is controlled by the

navigation system. You can adjust the volume increments by selecting

different SDVC curves.

Glossary