Method and system for data processing in a vehicle group

• US 10,469,579 B2
• Filed: 04/07/2014
• Issued: 11/05/2019
• Est. Priority Date: 12/16/2010
• Status: Active Grant

• Current Assignee: Westinghouse Air Brake Technologies Corporation
• Original Assignee: General Electric Company
• Inventors: Cooper, Jared Klineman, Brand, John, Goodermuth, Todd William, Nelson, Scott, Noffsinger, Joseph Forrest, Nagrodsky, Nick David, Mitti, Aaron Richard
• Primary Examiner(s): Barot, Bharat
• Application Number:
  US14/246,619
• Publication Number:
  US 20140222971A1
• Time in Patent Office: 2,038 Days
• Field of Search: 709217-219, 709225-229
• CPC Class Codes: B61C 17/12 Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units control from points outside the train B61L3/00; fluid-actuated telemotors, servomotors F15B; control devices in general G05
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

Methods and systems are provided for processing data generated in a vehicle group. One example embodiment comprises selectively off-boarding a data set generated at a first vehicle in the vehicle group for storage purposes, the first data set off-boarded to one or more of a second vehicle in the vehicle group and a remote storage device.

Claims

1. A method of processing data in a vehicle group, comprising:

determining, via an electronic controller, a level of quality of a data set captured by a data capture device of a first vehicle in the vehicle group, the level of quality determined based on a file size variation among frames or sets of frames of the data set, where as the file size variation increases, the determined level of quality of the data set increases;

when the level of quality of the data set is higher than a threshold level, storing the data set in a first memory on the first vehicle;

when the level of quality of the data set is not higher than the threshold level, storing the data set in a second memory on the first vehicle, the second memory separate from the first memory; and

selectively off-boarding the data set for storage purposes via the electronic controller, the data set off-boarded to one or more of a second vehicle in the vehicle group and a remote storage device based on the determined level of quality.

2. The method of claim 1, wherein the vehicle group includes a communication system configured to communicatively couple the first vehicle to other vehicles in the vehicle group, the communication system further configured to communicatively couple the vehicle group to the remote storage device, wherein off-boarding the data set for storage purposes includes,

during a first condition, off-boarding the data set from the first vehicle to the second vehicle in the vehicle group via the communication system;

and

during a second condition, off-boarding the data set from the first vehicle to the remote storage device via the communication system.

3. The method of claim 2, wherein the communication system is linked to a network, and wherein the first condition includes a link quality of the communication system being lower than a threshold, and wherein the second condition includes the link quality of the communication system being higher than the threshold.

4. The method of claim 2, wherein the first condition includes the level of quality of the data set being above the threshold level, and wherein the second condition includes the level of quality of the data set being below the threshold level, and wherein the level of quality of the data set is further determined based on a resolution of the data set.

5. The method of claim 1, further comprising reducing a file size of the data set by selectively lowering a level of detail of one or more frames of the data set.

6. The method of claim 1, wherein the data set includes audio and video data generated by the data capture device of the first vehicle, the data capture device including at least an inward facing camera to capture data inside the first vehicle and an outward facing camera to capture data outside the first vehicle.

7. A method of processing data, comprising:

generating, with a first data capture device, a first data set on a first vehicle in a vehicle group;

generating, with a second data capture device, a second data set on a second vehicle in the vehicle group;

evaluating, via a first electronic controller, a resolution of the first data set;

if the resolution is below a quality threshold, storing, via the first electronic controller, the first data set in a standard data storage device and storing, via a second electronic controller, the second data set on the second vehicle;

if the resolution is above the quality threshold, storing, via the first electronic controller, the first data set in a crash-hardened memory on the first vehicle and transmitting the first data set from the first vehicle to the second vehicle over a communication system of the vehicle group, and storing, via the second electronic controller, the transmitted first data set on the second vehicle; and

after generating the first data set and before storing the first data set, reducing, via the first electronic controller, a file size of the first data set by reducing a resolution of only select frames that capture repetitive or redundant information.

8. The method of claim 7, wherein the first data set is transmitted from the first vehicle to the second vehicle only when the resolution is above the quality threshold, and wherein the first data set is not transmitted from the first vehicle to the second vehicle when the resolution is below the quality threshold.

9. The method of claim 8, wherein the resolution of the first data set is evaluated at the first vehicle.

10. The method of claim 7, wherein storing the first data set in the standard data storage device comprises storing the first data set in a standard data storage device located on the first vehicle.

11. The method of claim 7, wherein storing the first data set in the standard data storage device comprises storing the first data set in a standard data storage device located remotely from the first vehicle.

12. The method of claim 7, wherein reducing the file size of the first data set further comprises cropping one or more frames of the first data set.

13. A system, comprising:

a vehicle group including at least a leading first vehicle coupled to a trailing second vehicle;

a data capture device located on the first vehicle; and

a controller coupled to the data capture device and configured to;

evaluate a resolution of a data set generated by the data capture device;

in response to the resolution being greater than a threshold, initiate recording of the data set on a crash-hardened memory located on the first vehicle and initiate transmission of the data set off-board the first vehicle to the second vehicle with a communication system; and

in response to the resolution not being greater than the threshold, initiate recording of the data set on a standard data storage device located on the first vehicle.

14. The system of claim 13, wherein the communication system is configured to communicatively couple the first vehicle to other vehicles in the vehicle group, the communication system further configured to communicatively couple the vehicle group to a remote storage device.

15. The system of claim 13, wherein the data capture device comprises at least one of an inward-facing camera, an outward-facing camera, and a microphone.

16. The system of claim 13, wherein the controller is configured to identify frames of the data set captured during an event and reduce a file size of the data set by only recording the frames of the data set captured during the event.

17. The system of claim 16, wherein the event comprises the first vehicle traversing a predetermined location.

18. The system of claim 13, wherein the controller is configured to, in response to the resolution not being greater than the threshold, initiate transmission of the data set off-board the first vehicle to a remote storage device with the communication system.