NAVIGATION SYSTEM AND NAVIGATION METHOD

• US 20140129144A1
• Filed: 10/25/2013
• Published: 05/08/2014
• Est. Priority Date: 11/07/2012
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: TAKANO, Hideki, MAEOKA, Jun
• Granted Patent: US 9,255,812 B2
• Time in Patent Office: Days
• US Class Current: 701/538
• CPC Class Codes: G01C 21/3626 Details of the output of route guidance instructions traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968
• CPC Class Codes: G01C 21/3697 Output of additional, non-guidance related information, e.g. low fuel level G01C21/3679 takes precedence

Abstract

There is provided a navigation system having a guidance-controller, the guidance-controller controlling the sequence of guidances, and priority, according to an execution condition set depending on the type of a relevant guidance, while determining whether or not a guidance is executed according to the execution condition to thereby alter the teaching of guidance-execution. If overlapping by plural guidances using speech, and screen display occurs, the simple display of the guidance lower in priority is executed, and if the guidance falls outside an effective range, the guidance is interrupted, or the guidance during standby-display is not executed. Thereby, plural guidances are concurrently displayed, and a meaningless guidance is not displayed.

Claims

1. A navigation system for executing a guidance with a screen display or speech, comprising:

a controller that generates the guidance depending on a state of a movable body with the navigation system mounted thereon; and

a user interface that receives supply of the guidance generated by the controller to thereby output the guidance with a screen display or speech to a user of the navigation system,

wherein if the controller has a plurality of the guidances as generated, the controller determines a method whereby the user interface outputs a screen display or speech according to an execution condition set depending on the type of a relevant guidance.

2. The navigation system according to claim 1, wherein the method determines the order in which the user interface outputs a screen display or speech.

3. The navigation system according to claim 1, wherein the method determines the teaching of the user interface outputting a screen display or speech.

4. The navigation system according to claim 1, wherein the execution condition is determined on the basis of a distance or time from a position where an event has happened, the guidance of the event, in respect of a screen display or speech, being outputted by the user interface.

5. The navigation system according to claim 4, wherein, if a distance or time determined according to the execution condition is exceeded, the guidance is stopped.

6. The navigation system according to claim 3,

wherein the teaching of a screen display or speech, outputted by the user interface, is related to a screen to be displayed in the user interface,

wherein the execution condition is determined on the basis of priority of the guidance, and

wherein, if the controller has the plural guidances as generated, the controller generates a plurality of display areas differing in magnitude from each other, in the user interface, thereby executing the display of the guidance high in priority in a large display area while executing the simple display of the guidance low in priority in a small display area.

7. The navigation system according to claim 6, wherein if the controller has the plural guidances low in priority, the controller displays the plural guidances in the display area for the simple display.

8. The navigation system according to claim 6, wherein if the guidance high in priority is completed, the controller displays the guidance low in priority in the large display area.

9. A navigation method in a navigation system for executing a guidance with a screen display or speech, the navigation method comprising:

generating the guidance depending on a state of a movable body with the navigation system mounted thereon; and

outputting the guidance as generated to a user of the navigation system, by means of a screen display or speech,

wherein if a plurality of the guidances as generated exist, a method is determined whereby a screen display or speech is outputted according to an execution condition set depending on the type of the guidance.

10. The navigation method according to claim 9, wherein the method for outputting the screen display or the speech determines the order in which the screen display or the speech is outputted.

11. The navigation method according to claim 9, wherein the method for outputting the screen display or the speech determines the teaching of outputting the screen display or the speech.

12. The navigation method according to claim 9, wherein the execution condition is determined on the basis of a distance or time from a position where an event has happened, the guidance of the event, in respect of a screen display or speech, being outputted.

13. The navigation method according to claim 12, wherein if a distance or time, determined according to the execution condition, is exceeded, the guidance is stopped.

14. The navigation method according to claim 11, wherein

the teaching of outputting the screen display or the speech is related to a screen to be displayed,

the execution condition is determined on the basis of the priority of the guidance, and

if the plural guidances generated are present, a plurality of display areas differing in magnitude from each other are generated in the user interface, thereby displaying the guidance high in priority in a large display area while executing the simple display of the guidance low in priority in a small display area.

15. The navigation method according to claim 14, wherein, if the plural guidances low in priority are present, the plural guidances are displayed in the display area for the simple display.

16. The navigation method according to claim 14, wherein if the guidance high in priority is completed, the guidance low in priority is displayed in the large display area.