CAR2X RECEIVER FILTERING BASED ON A RECEIVING CORRIDOR IN A GEOGRAPHIC COORDINATE SYSTEM

• US 20160198303A1
• Filed: 08/22/2014
• Published: 07/07/2016
• Est. Priority Date: 08/22/2013
• Status: Active Grant

• Current Assignee: Continental Teves AG & Co. OHG (Continental AG)
• Original Assignee: Continental Teves AG & Co. OHG (Continental AG)
• Inventors: Grotendorst, Thomas, Menzel, Marc, Scherping, Richard, Sthlin, Ulrich
• Granted Patent: US 10,225,690 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 1/09675 where a selection from the received information takes place in the vehicle
• CPC Class Codes: G08G 1/096791 where the origin of the information is another vehicle
• CPC Class Codes: G08G 1/162 event-triggered
• CPC Class Codes: G08G 1/163 involving continuous checking
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/027 using movement velocity, acceleration information
• CPC Class Codes: H04W 4/40 for vehicles, e.g. vehicle-to-pedestrians [V2P]
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A method for filtering a message transmitted between a transmitter and a receiver in a vehicular ad hoc network, the message containing at least one position of the transmitter, including: determining a position of the receiver by a global satellite navigation system in a predetermined coordinate system; determining a decision threshold for a maximum distance between the receiver and the transmitter in the predetermined coordinate system in which the position of the receiver was determined; and discarding the message if a distance between the position of the transmitter and the position of the receiver exceeds the decision threshold.

Claims

1. A method for filtering a message, transmitted between a sender and a receiver in a vehicle ad hoc network, that contains at least one position of the sender, the method comprising:

determining a position of the receiver by a global satellite navigation system in a predetermined coordinate system

determining a decision threshold for a maximum distance between the receiver and the sender in the predetermined coordinate system in which the position of the receiver has been determined, and

rejecting the message if a distance between the position of the sender and the position of the receiver exceeds the decision threshold.

2. The method as claimed in claim 1, wherein the predetermined coordinate system is a spherical coordinate system that describes positions in geocoordinates on the earth'"'"'s surface.

3. The method as claimed in claim 1, wherein the decision threshold comprises a corridor around the position of the receiver, so that the message is rejected if the position of the sender is outside the corridor.

4. The method as claimed in claim 3, wherein the receiver is a vehicle and the corridor is larger in the direction of travel of the vehicle than counter to the direction of travel.

5. The method as claimed in claim 3, further comprising:

stipulation of the corridor if the receiver leaves a further corridor that is located in the corridor.

6. The method as claimed in claim 5, wherein the further corridor is dependent on a speed of the receiver.

7. The method as claimed in claim 1, wherein the decision threshold is dependent on a speed of movement of the receiver.

8. The method as claimed in claim 1, wherein the message is at least part of a data packet that stores the position of the sender in a header of the data packet.

9. A filter apparatus for performing a method as claimed in claim 1.

10. A receiver for a vehicle for receiving a transmission signal that is set up to carry messages having position data pertaining to subscribers of a vehicle ad hoc network in data packets, comprising:

an antenna for receiving the transmission signal, and

a filter apparatus as claimed in claim 9 for filtering at least some of the data packets from the transmission signal on the basis of the position data.

11. The method as claimed in claim 2, wherein the decision threshold comprises a corridor around the position of the receiver, so that the message is rejected if the position of the sender is outside the corridor.

12. The method as claimed in claim 4, further comprising:

stipulation of the corridor if the receiver leaves a further corridor that is located in the corridor.