Navigation system with priority notification mechanism

• US 9,031,781 B2
• Filed: 05/09/2013
• Issued: 05/12/2015
• Est. Priority Date: 05/09/2013
• Status: Active Grant

• Current Assignee: TeleNav Incorporated
• Original Assignee: TeleNav Incorporated
• Inventors: Li, Weiying, Husain, Aliasgar Mumtaz
• Primary Examiner(s): Tarcza, Thomas
• Assistant Examiner(s): Lee, Tyler J
• Application Number:
  US13/890,870
• Publication Number:
  US 20140336919A1
• Time in Patent Office: 733 Days
• Field of Search: 701400-419, 701/423, 701/425, 701/426, 701428-432, 701437-439, 701/460, 701/468, 701/532, 342/357.22, 342/357.31, 342/357.75, 340/988, 340/990, 3409951-996, 340/426.23, 340/435, 340/438, 340/463, 709/207
• US Class Current: 701/431
• CPC Class Codes: G01C 21/3655 Timing of guidance instructions
• CPC Class Codes: G01C 21/3697 Output of additional, non-guidance related information, e.g. low fuel level G01C21/3679 takes precedence

Abstract

A method of operation of a navigation system includes: generating a system message along a route determining a priority value for the system message; sorting the system message based on the priority value and a message play time for the system message; calculating an available play time for the system message; and selecting the system message having the message play time not exceeding the available play time.

Claims

1. A method of operation of a navigation system comprising:

generating a system message including a message play time associated with playing the system message at a normal rate along a route;

determining a priority value for the system message;

sorting the system message based on the priority value and the message play time for the system message;

calculating an available play time for the system message based on the route;

selecting the system message including the message play time not exceeding the available play time based on adjusting a message presentation speed to a fast speed for playing the system message to fit within the available play time with a control unit.

2. The method as claimed in claim 1 wherein generating the system message includes generating the system message based on a message type setting and the message presentation speed.

3. The method as claimed in claim 1 wherein selecting the system message having the message play time not exceeding the available play time includes selecting a detailed content, an intermediate content, or a brief content for the system message based on the available play time.

4. The method as claimed in claim 1 further comprising selecting a message content and the message presentation speed based on the available play time.

5. The method as claimed in claim 1 wherein calculating the available play time includes calculating the available play time based on a current location.

6. The method as claimed in claim 1 wherein selecting the system message having the message play time not exceeding the available play time includes:

selecting a message content as a detailed content; and

switching the message content to an intermediate content or a brief content based on a change to the available play time.

7. The method as claimed in claim 1 wherein:

generating the system message includes;

generating a first message,

generating a second message after the first message;

sorting the system message includes inserting the first message and the second message into a message queue based on a current location; and

selecting the system message includes selecting the system message from the message queue.

8. The method as claimed in claim 1 wherein:

generating the system message includes;

generating a first message having a first message play time,

generating a second message after the first message, the second message having a second message play time;

sorting the system message based on the priority value and the message play time includes;

inserting the first message at a head of a message queue before the generation of the second message,

inserting the second message into the message queue and behind the first message; and

selecting the system message having the message play time not exceeding the available play time includes selecting the second message from the message queue when the first message play time exceeds the available play time.

9. The method as claimed in claim 1 wherein:

generating the system message includes;

generating a first message having a first message play time,

generating a second message having a second message play time;

determining the priority value for the system message includes;

determining a first priority value for the first message,

determine a second priority value for the second message, the second priority value is same as the first priority value;

sorting the system message based on the priority value and the message play time includes;

inserting the first message at a head of a message queue before the generation of the second message,

inserting the second message at the head of the message queue and moving the first message from the head of the message queue based on the second message play time greater than the first message play time; and

selecting the system message having the message play time not exceeding the available play time includes selecting from the head of the message queue.

10. The method as claimed in claim 1 wherein:

generating the system message includes;

generating a first message,

generating a second message after the first message;

determining the priority value for the system message includes;

determining a first priority value for the first message,

determine a second priority value for the second message, the second priority value is a higher priority than the first priority value;

sorting the system message based on the priority value and the message play time includes;

inserting the first message at a head of a message queue before the generation of the second message,

inserting the second message at the head of the message queue and moving the first message from the head of the message queue;

calculating the available play time for the system message includes;

calculating a first available play time for the first message,

calculating a second available play time for the second message; and

selecting the system message having the message play time not exceeding the available play time includes selecting the first message when the second message play time exceeds the second available play time.

11. A navigation system comprising:

a control unit configured to;

generate a system message including the message play time associated with playing the system message at a normal rate along a route,

determine a priority value for the system message;

sort the system message based on the priority value and the message play time for the system message,

calculate an available play time for the system message based on the route,

select the system message including the message play time not exceeding the available play time based on adjusting the message presentation speed to a fast speed for playing the system message to fit within the available play time; and

a storage unit, coupled to the control unit, configured to store the system message.

12. The system as claimed in claim 11 wherein the control unit is configured to generate the system message based on a message type setting and the message presentation speed.

13. The system as claimed in claim 11 wherein the control unit is configured to select a detailed content, an intermediate content, or a brief content for the system message based on the available play time.

14. The system as claimed in claim 11 wherein the control unit is configured to select a message content and the message presentation speed based on the available play time.

15. The system as claimed in claim 11 wherein the control unit is configured to calculate the available play time based on a current location.

16. The system as claimed in claim 11 wherein the control unit is configured to select the system message including:

selecting a message content as a detailed content; and

switching the message content to an intermediate content or a brief content based on a change to the available play time.

17. The system as claimed in claim 11 wherein the control unit is configured to:

generate the system message including;

generating a first message,

generating a second message after the first message;

sort the system message includes inserting the first message and the second message into a message queue based on a current location; and

select the system message from the message queue.

18. The system as claimed in claim 11 wherein the control unit is configured to:

generate the system message including;

generating a first message having a first message play time,

generating a second message after the first message, the second message having a second message play time;

sort the system message based on the priority value and the message play time for the system message including;

insert the first message at a head of a message queue before the generation of the second message,

insert the second message into the message queue and behind the first message; and

select the system message includes selecting the second message from the message queue when the first message play time exceeds the available play time.

19. The system as claimed in claim 11 wherein the control unit is configured to:

generate the system message including;

generating a first message having a first message play time,

generating a second message having a second message play time;

determine the priority value for the system message, including;

determining a first priority value for the first message,

determine a second priority value for the second message, the second priority value is same as the first priority value;

sort the system message based on the priority value and the message play time for the system message including;

inserting the first message at a head of a message queue before the generation of the second message,

inserting the second message at the head of the message queue and moving the first message from the head of the message queue based on the second message play time greater than the first message play time;

calculate the available play time for the system message including;

calculating a first available play time for the first message,

calculating a second available play time for the second message; and

select the system message includes selecting from the head of the message queue.

20. The system as claimed in claim 11 wherein the control unit is configured to:

generate the system message including;

generating a first message,

generating a second message after the first message;

determine the priority value for the system message including;

determining a first priority value for the first message,

determine a second priority value for the second message, the second priority value is a higher priority than the first priority value;

sort the system message based on the priority value and the message play time for the system message including;

inserting the first message at a head of a message queue before the generation of the second message,

inserting the second message at the head of the message queue and moving the first message from the head of the message queue;

calculate the available play time for the system message including;

calculating a first available play time for the first message,

calculating a second available play time for the second message; and

select the system message having the message play time not exceeding the available play time includes selecting the first message when the second message play time exceeds the second available play time.