Moving map display

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Moving map display systems are a type of portable electronic display typically used in GPS navigation devices. A symbol representing the location of the GPS device carried by a person or inside a vehicle, remains stationary on the display screen while a map or chart image moves beneath the symbol.[1] The display thus portrays on the displayed map or chart, the physical movement of the device. The portrayal typically shows a simulated overhead view of the device location on the moving map, but some devices also simulate a three-dimensional view from the perspective of the device.

Before the advent of GPS, moving map devices used other methods of determining the location of the device so that it could be represented on the display. Some advanced modern devices add an Inertial measurement unit to supplement the GPS location information.

Many devices also provide an option for the map or chart image to remain stationary on the display while the location symbol moves to represent physical device movement. Some moving map display systems also provide a method of displaying the elevation of the device above sea level or the earth's surface.

See also

References

  1. ↑ "http://www.fas.org/irp/doddir/dod/jp1_02-april2010.pdf". 
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