Method and apparatus for displaying current vehicle position
AssigneeVisteon Technologies, LLC
InventorsHiroshi Nonaka, Lihung Lin
Life of this patent
Estimating the term…
Abstract
Methods and apparatus are described for displaying information corresponding to a current vehicle position on a display of a vehicle navigation system. After the current vehicle position is determined by a separate process, the system determines the road on which the vehicle is currently located. The system then refers to a map database to construct a current road database corresponding to the current road. A current road segment corresponding to the current vehicle position is then determined. The system then refers to the current road database to determine a first geographical location based on the current vehicle road segment. The system then displays a text representation of the current vehicle position relative to the first geographical location.
Claims19
A method for displaying information corresponding to a current vehicle position on a display of a vehicle navigation system comprising the steps of:
- (A) determining a current road;
- (B) referring to a map database to construct a separate current road database, the current road database being a subset of the map database and comprising first nodes and first segments corresponding to the current road and second segments emanating from selected ones of the first nodes;
- (C) determining a current road segment corresponding to the current vehicle position;
- (D) referring to the current road database to determine a first geographical location based on the current road segment;
- and
- (E) displaying a text representation of the current vehicle position relative to the first geographical location.
An apparatus for displaying information corresponding to a current vehicle position on a display of a vehicle navigation system comprising:
- (A) means for determining a current road;
- (B) means for referring to a map database and constructing a separate current road database, the current road database being a subset of the map database and comprising first nodes and first segments corresponding to the current road and second segments emanating from selected ones of the first nodes;
- (C) means for determining a current road segment corresponding to the current vehicle position;
- (D) means for referring to the current road database and determining a first geographical location based on the current road segment;
- and
- (E) means for displaying a text representation of the current vehicle position relative to the first geographical location.
A vehicle navigation system, comprising:
- a plurality of sensors for detecting a current vehicle position and a vehicle heading, and generating signals indicative thereof;
- a display for communicating the current vehicle position to a user;
- a database medium having map data stored therein;
- and
- a processor coupled to the sensors, the display, and the database medium, the processor being operable to
- (A) determine a current road;
- (B) refer to the database medium and construct a separate current road database, the current road database being a subset of the map database and comprising first nodes and first segments corresponding to the current road and second segments emanating from selected ones of the first nodes;
- (C) determine a current road segment corresponding to the current vehicle position;
- (D) refer to the current road database and determine a first geographical location based on the current road segment;
- and
- (E) display a text representation of the current vehicle position relative to the first geographical location.
A computer program product for displaying information corresponding to a current vehicle position on a display of a vehicle navigation system, comprising:
- a computer-readable medium;
- and
- a computer program mechanism embedded in the computer-readable medium for causing a computer to perform the steps of:
- (A) determining a current road;
- (B) referring to a map database to construct a separate current road database, the current road database being a subset of the map database and comprising first nodes and first segments corresponding to the current road and second segments emanating from selected ones of the first nodes;
- (C) determining a current road segment corresponding to the current vehicle position;
- (D) referring to the current road database to determine a first geographical location based on the current road segment;
- and
- (E) displaying a text representation of the current vehicle position relative to the first geographical location.
Dependencies are inferred from the claim text.