METHOD FOR MODIFYING NAVIGATION INFORMATION AND NAVIGATION APPARATUS USING THE SAME

• US 20090271113A1
• Filed: 05/29/2008
• Published: 10/29/2009
• Est. Priority Date: 04/29/2008
• Status: Abandoned Application

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Chen, Yung-yu, Kuo, Wei-ting, CHANG, SHYANG-JYE
• Application Number:
  US12/129,051
• Publication Number:
  US 20090271113A1
• Time in Patent Office: Days
• US Class Current: 701/214
• CPC Class Codes: G01C 21/165 combined with non-inertial navigation instruments
• CPC Class Codes: G01C 21/3415 Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents

Abstract

A method for modifying navigation information for guiding the driver is provided in the present invention, in which attitude angle of a carrier at a specific location is detected and compared with an identifying information for judging whether the carrier is on a correct route or not. In another embodiment, the present invention further provides a navigation apparatus according the foregoing method, which comprises an inertia navigation unit, a satellite signal receiving unit, a database, and signal processing unit. The signal processing unit generates a navigation route in accordance with the start and destination and determines whether the attitude angle is conformed to the identifying information with respect to the specific location on the navigation route. If the attitude angle is not conformed to the identifying information, the signal processing unit remodifies the navigation route for the carrier.

Claims

1. A method for modifying navigation information, comprising the steps of:

(a) providing a navigation route to a carrier;

(b) basing upon the navigation route to generate an identification information;

(c) detecting an attitude angle of the carrier while the carrier is on the move;

(d) comparing the detected attitude angle with the identification information for determining whether the attitude angle is conformed to the identification information;

(e) directing the flow to proceed back to the step (c) for monitoring the attitude angle in a continuing manner, when the attitude angle is conformed to the identification information;

(f) modifying the navigation route when the attitude angle is not conformed to the identification information, and then directing the flow to proceed back to the step (c) for monitoring the attitude angle in a continuing manner.

2. The method for modifying navigation information of claim 1, wherein the navigation route is defined basing on a starting location and a destination.

3. The method for modifying navigation information of claim 1, wherein the modifying of the navigation route is performed basing on a current location of the carrier indicated by the attitude angle and a destination.

4. The method for modifying navigation information of claim 1, wherein the carrier is a wheeled vehicle.

5. The method for modifying navigation information of claim 1, wherein the identification information includes all the attitude angles of the carrier as it is traveling on the navigation route, or the range of the attitude angle of the carrier as it is traveling on the navigation route.

6. A navigation apparatus, being adapted for mounting on a carrier, comprising:

an inertia navigation unit, capable of sensing an attitude angle of the carrier;

a satellite signal receiving unit, for receiving a satellite signal;

a database, for storing a communication information of a road map and identification information corresponding to every specific location on the road map; and

a signal processing unit, connected to the inertia navigation unit, the satellite signal receiving unit and the database, capable of generating a navigation route and comparing the identification information of a specific location on the navigation route with the attitude angle for determines whether the attitude angle is conformed to the identification information so as to generate a new navigation route when the identification information in not conformed to the attitude angle.

7. The navigation apparatus of claim 6, wherein the carrier is a wheeled vehicle.

8. The navigation apparatus of claim 6, wherein the identification information includes all the attitude angles of the carrier as it is traveling on the navigation route, or the range of the attitude angle of the carrier as it is traveling on the navigation route.

9. The navigation apparatus of claim 6, wherein the navigation route is defined by the signal processing unit basing on a starting location and a destination.

10. The navigation apparatus of claim 6, wherein the new navigation route is generated by the signal processing unit basing on a current location of the carrier indicated by the attitude angle and a destination.

11. The navigation apparatus of claim 6, wherein the inertia navigation unit further comprises at least a gyroscopic sensor.

12. The navigation apparatus of claim 6, wherein the inertia navigation unit further comprises at least a differential module, and each differential module further comprises a pair of accelerometers, being arranged spacing from each other by a specific distance.

13. The navigation apparatus of claim 6, further comprising:

an acceleration sensing module, further comprising at least an accelerometer.

14. A navigation apparatus, being adapted for mounting on a carrier, comprising:

an inertia navigation unit, capable of sensing an attitude angle of the carrier;

a satellite signal receiving unit, for receiving a satellite signal;

a database, for storing a communication information of a road map and identification information corresponding to every specific location on the road map;

a signal processing unit, connected to the inertia navigation unit, the satellite signal receiving unit and the database, capable of generating a navigation route basing on the information stored in the database and comparing the identification information of a specific location on the navigation route with the attitude angle for determines whether the attitude angle is conformed to the identification information so as to modify the navigation route into a new navigation route when the identification information in not conformed to the attitude angle; and

a display device, connected to the signal processing unit, for displaying the navigation route, the new navigation route and the information stored in the database.

15. The navigation apparatus of claim 14, wherein the carrier is a wheeled vehicle.

16. The navigation apparatus of claim 14, wherein the identification information includes all the attitude angles of the carrier as it is traveling on the navigation route, or the range of the attitude angle of the carrier as it is traveling on the navigation route.

17. The navigation apparatus of claim 14, wherein the navigation route is defined by the signal processing unit basing on a starting location and a destination.

18. The navigation apparatus of claim 14, wherein the new navigation route is generated by the signal processing unit basing on a current location of the carrier indicated by the attitude angle and a destination.

19. The navigation apparatus of claim 14, wherein the display device is designed to display an operation interface thereon whose operations enables a starting location and a destination to be received by the signal processing unit for defining the navigation route.

20. The navigation apparatus of claim 14, wherein the display device is able to display a marking in correspondence to the coordinates of the carrier.

21. The navigation apparatus of claim 14, wherein the inertia navigation unit further comprises at least a gyroscopic sensor.

22. The navigation apparatus of claim 14, wherein the inertia navigation unit further comprises at least a differential module, and each differential module further comprises a pair of accelerometers, being arranged spacing from each other by a specific distance.

23. The navigation apparatus of claim 14, further comprising:

an acceleration sensing module, further comprising at least an accelerometer.