NAVIGATION SYSTEM FOR DISPLAYING DIRECTION INFORMATION TO DESTINATION, AND METHOD THEREOF

• US 20060287814A1
• Filed: 03/28/2006
• Published: 12/21/2006
• Est. Priority Date: 05/03/2005
• Status: Abandoned Application

• Current Assignee: Hyundai Autonet Co Ltd (Hyundai Mobis Co., Ltd.)
• Original Assignee: Hyundai Autonet Co Ltd (Hyundai Mobis Co., Ltd.)
• Inventors: Lee, Soo Sean
• Application Number:
  US11/277,709
• Publication Number:
  US 20060287814A1
• Time in Patent Office: Days
• US Class Current: 701/208
• CPC Class Codes: G01C 21/3667 Display of a road map G01C21/3614 takes precedence; guidance using 3D or perspective road maps G01C21/3635

Abstract

A navigation system for displaying information on a straight-lined direction from a current position to a destination, and a method thereof are provided. The system includes a GPS module for measuring current position and running direction of a vehicle, and generating information on the current position and running direction; a controller for receiving the information on the current position and running direction, deciding a direction of a destination inputted by a user at the current position, generating information on the decided destination direction, and outputting the generated destination direction information to a display unit; and the display unit for receiving the destination direction information and displaying the received destination direction information together with map data.

Claims

1. A navigation system for displaying destination direction information, the system comprising:

a GPS module for measuring current position and running direction of a vehicle, and generating information on the current position and running direction;

a controller for receiving the information on the current position and running direction, deciding a direction of a destination inputted by a user at the current position, generating information on the decided destination direction, and outputting the generated destination direction information to a display unit; and

the display unit for receiving the destination direction information and displaying the received destination direction information together with map data.

2. The system according to claim 1, wherein the destination direction information is an angle between a horizontal line including a coordinate of the current position and a straight-line connecting the coordinate of the current position and a destination coordinate.

3. The system according to claim 2, wherein the angle is calculated in the following Equation:

da=tan<sup>−

1</sup>(dy/dx)

where,

da;

direction from direction-based current position to destination, that is, angle between X-axis and straight-line connecting from current position to destination,

dy;

Y-coordinate variation between current position (x1, y1) and destination (x2, y2), and

dx;

X-coordinate variation between current position (x1, y1) and destination (x2, y2).

4. The system according to claim 3, wherein, if the map data is constructed by a reference coordinate with a vehicle positioning direction straight-lined, the angle is calculated considering the running direction.

5. A method for displaying destination direction information in a navigation system, the method comprising the steps of:

measuring current position and running direction of a vehicle, and generating information on the current position and running direction;

receiving the information on the current position and running direction, and deciding a direction of a destination inputted by a user at the current position; and

displaying the destination direction information together with map data.

6. The method according to claim 5, wherein the destination direction information is an angle between a horizontal line including a coordinate of the current position and a straight-line connecting the coordinate of the current position and a destination coordinate.

7. The method according to claim 6, wherein the angle is calculated in the following Equation:

da=tan<sup>−

1</sup>(dy/dx)

where,

da;

direction from direction-based current position to destination, that is, angle between X-axis and straight-line connecting from current position to destination,

dy;

Y-coordinate variation between current position (x1, y1) and destination (x2, y2), and

dx;

X-coordinate variation between current position (x1, y1) and destination (x2, y2).

8. The method according to claim 7, wherein, if the map data is constructed by a reference coordinate with a vehicle positioning direction straight-lined, the angle is calculated considering the running direction.