Method for outputting traffic information in a motor vehicle

• US 7,193,528 B2
• Filed: 11/30/2004
• Issued: 03/20/2007
• Est. Priority Date: 03/01/1999
• Status: Expired due to Term

• Current Assignee: RPX Corporation
• Original Assignee: Nokia Corporation
• Inventors: Hanebrink, Thomas
• Primary Examiner(s): Lieu, Julie Bichngoc
• Application Number:
  US10/999,687
• Publication Number:
  US 20050162284A1
• Time in Patent Office: 840 Days
• Field of Search: 340/907, 340/988, 701/117, 701/209, 701/210, 701/211
• US Class Current: 340/907
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G08G 1/091 Traffic information broadcasting broadcasting communication H04H
• CPC Class Codes: G08G 1/093 Data selection, e.g. prioritizing information, managing message queues, selecting the information to be output
• CPC Class Codes: G08G 1/096716 where the received information does not generate an automatic action on the vehicle control
• CPC Class Codes: G08G 1/09675 where a selection from the received information takes place in the vehicle
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station

Abstract

Traffic messages are received together with the respective position of the point relating to the message. Only those traffic messages that relate to a selected area together with the respective position of a point related to the traffic message are stored. The positions of the traffic messages are compared with a respective position of the motor vehicle in order to determine distances between the respective positions in the traffic messages and the position of the motor vehicle. The traffic messages are sorted in accordance with distances determined and the traffic messages starting with the smallest distance are outputted. Whether the traffic message is significant for a current direction of travel or for an opposite direction of travel is detected, and only traffic messages that are relevant to the current direction of travel are outputted.

Claims

1. A method for outputting traffic information in a motor vehicle, comprising:

receiving and thereafter buffering traffic messages together with the respective position of the route section or point to which the traffic message relates;

determining whether or not the position of the route section to which the traffic message relates lies in a selected area;

storing only those traffic messages that relate to the selected area together with the respective position of the route section or to a point to which the traffic message relates;

comparing positions of the traffic messages with a respective position of the motor vehicle in which the traffic information is to be output in order to determine distances between the respective positions in the traffic messages and the position of the motor vehicle;

sorting the traffic messages in accordance with distances determined;

outputting the traffic messages starting with the smallest distance;

detecting whether the traffic message is significant for a current direction of travel or for an opposite direction of travel; and

outputting only traffic messages that are relevant to the current direction of travel.

2. The method according to claim 1, further comprising transmitting the sorted traffic messages to a motor vehicle.

3. The method according to claim 1, further comprising transmitting the traffic messages to a motor vehicle, sorting the transmitted messages and storing the sorted transmitted messages.

4. The method according to claim 1, further comprising continuously updating the transmitted traffic messages and transmitting the updated traffic messages to the motor vehicle at predefined time intervals.

5. The method according to claim 1, further comprising a user defining an area of traffic messages surrounding the position of the motor vehicle, the area comprising an essentially circular shape surrounding the position of the motor vehicle.

6. The method according to claim 1, further comprising a user defining a selected area of traffic messages surrounding the position of the motor vehicle as a function of a planned route for a journey, the area comprising an essentially corridor-like shape surrounding the position of the motor vehicle.

7. The method according to claim 1, further comprising:

detecting first the direction of travel of the motor vehicle;

detecting the direction of the motor vehicle with respect to the particular position of the traffic message and comparing the detected position of the motor vehicle with the direction of travel;

comparing the direction of the motor vehicle with respect to the particular position of the traffic message with the direction of travel; and

outputting traffic messages that are sorted according to directions.

8. The method according to claim 1, further comprising:

forming a directional factor for each traffic message from the direction of the motor vehicle with respect to the particular position of the traffic message and the direction of travel; and

combining the directional factor with the distance assigned to the respective traffic message to form a local relevance factor which is taken into account during the outputting of the traffic messages.

9. The method according to claim 1, further comprising outputting a traffic message only if its local relevance factor is higher than a predefinable threshold value.

10. The method according to claim 1, further comprising:

detecting the position of the motor vehicle as a Geocode using a satellite-supported position-determining system, in particular with the GPS (Global Positioning System); and

providing the positions of the traffic messages as Geocodes, and determining the distances without further conversion calculations.

11. The method according to claim 1 further comprising automatically determining the selected area as a substantially circular area with a radius that is expediently predefined by the system.

12. The method according to claim 1 further comprising automatically defining the selected area, for the selection of messages that are of interest for the user, as a substantially circular area with a relatively small radius around an instantaneous position of the vehicle.

13. The method according to claim 1 further comprising defining a substantially conical area lying in a direction of the destination on both sides of a presumed route.

14. The method according to claim 12 further comprising defining a substantially conical area lying in a direction of the destination on both sides of a presumed route.