Method and arrangement for representing data in vehicle navigation systems
First Claim
1. An arrangement for representing data in a vehicle navigation system comprising:
- an input unit;
a data memory;
a vehicle position-determining unit;
an evaluating unit; and
a control unit for controlling a display by which, based on data stored in the data memory and the current vehicle position determined by the position-determining unit, the evaluating unit determines a route to a destination entered in the input unit with selected points of decision and/or orientation within the route and wherein the scale of a map display to be represented is adjusted as a function of the distance from the current vehicle position to a point of decision and/or orientation.
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Accused Products
Abstract
A method and arrangement for representation of data in a navigation system includes an input unit, a data memory, a position-determining unit, an evaluating unit and a control unit to control a display. From a destination entered in the input unit and the current vehicle location determined by the position-determining unit, the evaluating unit determines a route to the destination from cartographic data stored in the data memory. The evaluating unit also selects reference points of decision and/or orientation along the route and the scale of the map section displayed in the display unit is adjusted as a function of the distance between the current vehicle position and the next point of decision and/or orientation.
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Citations
6 Claims
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1. An arrangement for representing data in a vehicle navigation system comprising:
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an input unit; a data memory; a vehicle position-determining unit; an evaluating unit; and a control unit for controlling a display by which, based on data stored in the data memory and the current vehicle position determined by the position-determining unit, the evaluating unit determines a route to a destination entered in the input unit with selected points of decision and/or orientation within the route and wherein the scale of a map display to be represented is adjusted as a function of the distance from the current vehicle position to a point of decision and/or orientation.
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2. A method of representing data in a vehicle navigation system having an input unit, a data memory, a position-determining unit, an evaluating unit and a control unit for controlling a map display, comprising the following steps:
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a. entering a desired destination in the input unit; b. determining the current vehicle position in the position-determining unit; c. calculating a route in the evaluating unit from the vehicle position to the desired destination from cartographic data stored in the data memory; d. selecting and storing reference points within the route calculated by step c); e. reading out from the data memory by use of the evaluating unit cartographic data for a region around the current vehicle position; f. determining the distance form the current vehicle position to the next reference point selected according to step d); g. calculating a scale for the data to be represented in a map display as a function of the distance determined in step f); and h. transmitting the data for the scale calculated in step g) to the control unit. - View Dependent Claims (3, 4, 5, 6)
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Specification