Traffic estimation

Patent metadata

Field	Value
Publication number	US-9595191-B1
Application number	US-201514939998-A
Country	US
Kind code	B1
Filing date	Nov 12, 2015
Priority date	Nov 12, 2015
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

A system for using a traffic proxy measure includes an input interface and a processor. The input interface is to receive a vehicle data and a road data. A processor is to determine a traffic proxy measure based at least in part on the vehicle data and the road data.

First claim

What is claimed is:

1. A system for determining an event recorder threshold using a traffic proxy measure, comprising:
an input interface to:
receive a vehicle data and a road data; and

a processor to:
determine a traffic proxy measure based at least in part on the vehicle data and the road data;
determine whether to update the event recorder threshold based at least in part on the traffic proxy measure; and
in the event that it is determined to update the event recorder threshold, update the event recorder threshold.

2. The system of claim 1 , wherein the vehicle data comprises a vehicle speed, wherein the vehicle speed is received from a GPS.

3. The system of claim 1 , wherein the vehicle data comprises a vehicle speed, wherein the vehicle speed is received from a vehicle sensor.

4. The system of claim 1 , wherein the vehicle data comprises a speed of one or more nearby vehicles.

5. The system of claim 1 , wherein the vehicle data comprises a distance to one or more nearby vehicles.

6. The system of claim 1 , wherein the road data comprises a posted speed, wherein the posted speed is determined using a posted speed database.

7. The system of claim 1 , wherein the road data comprises a posted speed, wherein the posted speed is determined using map data.

8. The system of claim 1 , wherein the road data comprises a posted speed, wherein the posted speed is determined using GPS data.

9. The system of claim 1 , wherein the road data comprises a posted speed, wherein the posted speed is determined using a captured image of a speed limit sign.

10. The system of claim 9 , wherein the captured image of the speed limit sign is captured using an event recorder.

11. The system of claim 1 , wherein the road data comprises a road type, wherein the road type is determined using a road type database.

12. The system of claim 1 , wherein the road data comprises a road type, wherein the road type is determined using map data.

13. The system of claim 1 , wherein the road data comprises a road type, wherein the road type is determined using GPS data.

14. The system of claim 1 , wherein the traffic proxy measure is based at least in part on a ratio of a vehicle speed and a posted speed.

15. The system of claim 1 , wherein determining whether to update the event recorder threshold is based at least in part on the traffic proxy measure being less than a traffic proxy measure threshold.

16. The system of claim 15 , wherein the traffic proxy measure threshold is one of the following: 0.9, 0.5, 0.3, 0.2, or 0.1.

17. The system of claim 1 , wherein determining whether to update the event recorder threshold is based at least in part on the traffic proxy measure being below a traffic proxy measure threshold for more than a threshold fraction of time.

18. The system of claim 1 , wherein determining whether to update the event recorder threshold is based at least in part on the traffic proxy measure passing below a traffic proxy measure threshold more than a threshold number of times.

19. The system of claim 1 , wherein the event recorder threshold comprises an event trigger threshold.

20. The system of claim 1 , wherein the processor is further to determine whether to record event data.

21. The system of claim 1 , wherein the processor is further to determine whether to transmit event data.

22. A method for determining an event recorder threshold using a traffic proxy measure, comprising:
receiving a vehicle data and a road data;
determining, using a processor, a traffic proxy measure based at least in part on the vehicle data and road data;
determining whether to update the event recorder threshold based at least in part on the traffic proxy measure; and
in the event that it is determined to update the event recorder threshold, updating the event recorder threshold.

23. A computer program product for determining an event recorder threshold using a traffic proxy measure, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
receiving a vehicle data and a road data;
determining a traffic proxy measure based at least in part on the vehicle data and road data;
determining whether to update the event recorder threshold based at least in part on the traffic proxy measure; and
in the event that it is determined to update the event recorder threshold, updating the event recorder threshold.

Assignees

• Lytx Inc

Inventors

• Surpi Gabriela

Classifications

• G07C5/085

  using electronic data carriers · CPC title

• G08G1/0133

  for classifying traffic situation · CPC title

• G08G1/0137

  for specific applications · CPC title

• G08G1/052 Primary

  with provision for determining speed or overspeed {(speed measuring in general G01P)} · CPC title

• B60W40/04 Primary

  Traffic conditions · CPC title