Image-based motion characterization system for a mobile device

• US 8,964,026 B2
• Filed: 04/10/2012
• Issued: 02/24/2015
• Est. Priority Date: 04/10/2012
• Status: Active Grant

• Current Assignee: Lincoln Global Incorporated (Lincoln Electric Holdings Incorporated)
• Original Assignee: Lincoln Global Incorporated (Lincoln Electric Holdings Incorporated)
• Inventors: Enyedy, Edward A., Thayer, Robert J.
• Primary Examiner(s): Czekaj, Dave
• Assistant Examiner(s): PHAM, NAM D
• Application Number:
  US13/443,359
• Publication Number:
  US 20130265416A1
• Time in Patent Office: 1,050 Days
• US Class Current: 348/135
• CPC Class Codes: B23K 9/1087 Arc welding using remote control
• CPC Class Codes: G06T 2207/30152 Solder
• CPC Class Codes: G06T 2207/30164 Workpiece; Machine component
• CPC Class Codes: G06T 7/248 involving reference images or patches

Abstract

Mobile devices and methods to facilitate the motion characterization of a welding element. A mobile device is used to capture video of a rotating welding element and the video is processed by a software application residing on the mobile device to determine a rate of rotation of the rotating welding element. The software application may perform further processing to determine a linear rate of motion as derived from the determined rate of rotation. The rate of rotation and/or the linear rate of motion may be displayed to a user of the mobile device on a display screen of the mobile device. Such methods may aid a user in calibrating a piece of welding equipment.

Claims

1. A method implemented on a mobile device providing a motion characterizing functionality, said method comprising:

acquiring video data of at least one rotating welding element via a video camera of said mobile device, wherein said at least one rotating welding element includes at least one of a drive system in a cabinet, a roller of a wielding wire straightener, a roller of a wielding carriage or tractor, a spool of wielding wire, and welding workpiece;

tracking at least one feature of the rotation welding element over multiple frames of the video data;

processing said video data within said mobile device to determine a rate of rotation of the at least one rotating welding element based on said tracking; and

displaying an indication of said rate of rotation on a display of said mobile device.

2. The method of claim 1, further comprising:

matching said video data to image data of a rotatable part stored within said mobile device;

correlating said matching image data to dimension information of the rotatable part stored within said mobile device; and

converting said rate of rotation to a linear rate of motion using said dimension information.

3. The method of claim 2, further comprising displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

4. The method of claim 2, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

5. The method of claim 1, further comprising:

receiving dimension information associated with the at least one rotating welding element via a user interface of said mobile device; and

converting said rate of rotation to a linear rate of motion using said dimension information.

6. The method of claim 5, further comprising displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

7. The method of claim 5, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

8. The method of claim 1, further comprising:

receiving part identification information associated with the at least one rotating welding element via a user interface of said mobile device;

correlating said part identification information to dimension information associated with the at least one rotating welding element stored within said mobile device; and

converting said rate of rotation to a linear rate of motion using said dimension information.

9. The method of claim 8, further comprising displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

10. The method of claim 8, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

11. The method of claim 1, further comprising:

searching a computer network for image data of rotatable parts and corresponding dimension information using a wireless capability of said mobile device;

matching said video data to image data of a rotatable part found via said searching; and

converting said rate of rotation to a linear rate of motion using corresponding dimension information of the matching rotatable part found via said searching.

12. The method of claim 11, further comprising displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

13. The method of claim 11, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

14. The method of claim 1, further comprising:

receiving part identification information associated with the at least one rotating welding element via a user interface of said mobile device;

searching a computer network for dimension information associated with the at least one rotating welding element based on said part identification information using a wireless capability of said mobile device;

converting said rate of rotation to a linear rate of motion using said dimension information found via said searching corresponding to the at least one rotating welding element.

15. The method of claim 14, further comprising displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

16. The method of claim 14, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

17. A mobile device providing a motion characterizing functionally, said mobile device comprising:

a video camera operatively configured to acquire video data of at least one rotating welding element, wherein said at least one rotating welding element includes at least one of a drive roller of a welding wire feeder, a drive roller of a welding gun, a drive roller of a drive system in a cabinet, a roller of a welding wire straightener, a roller of a welding carriage or tractor, a spool of welding wire, and a welding workpiece;

a processing element;

a software application configured to operate on said processing element for tracking at least one figure of the rotating welding element over multiple frames of the video data, and for processing said video data to determine a rate of rotation of the at least one rotating welding element based on said tracking;

a display screen operatively configured to display information produced by said software application as said software application operates on said processing element; and

a user interface operatively configured to allow a user of said mobile device to input information to said mobile device.

18. The mobile device of claim 17, further comprising a computer memory for storing at least computer-readable instructions of said software application and information corresponding to a plurality of rotatable parts.

19. The mobile device of claim 17, wherein said software application is further configured to:

match said video data to image data of a rotatable part stored within said mobile device;

correlate said matching image data of the rotatable part to dimension information of the rotatable part stored within said mobile device; and

convert said rate of rotation to a linear rate of motion using said dimension information.

20. The mobile device of claim 19, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

21. The mobile device of claim 17, wherein said software application is further configured to:

receive dimension information associated with the at least one rotating welding element, as input by a user of said mobile device, via said user interface; and

convert said rate of rotation to a linear rate of motion using said dimension information.

22. The mobile device of claim 21, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

23. The mobile device of claim 17, wherein said software application is further configured to:

receive part identification information associated with the at least one rotating welding element, as input by a user of said mobile device, via said user interface;

correlate said part identification information to dimension information associated with the at least one rotating welding element stored within said mobile device; and

convert said rate of rotation to a linear rate of motion using said dimension information.

24. The mobile device of claim 23, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

25. The mobile device of claim 17, further comprising a wireless transceiver.

26. The mobile device of claim 25, wherein said software application is further configured to:

search a computer network for image data of rotatable parts and corresponding dimension information via said wireless transceiver;

match said video data to image data of a rotatable part found as a result of said search; and

convert said rate of rotation to a linear rate of motion using corresponding dimension information of the matching rotatable part found as a result of said search.

27. The mobile device of claim 26, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

28. The mobile device of claim 25, wherein said software application is further configured to:

receive part identification information associated with the at least one rotating welding element, as input by a user of said mobile device, via said user interface of said mobile device;

search a computer network for dimension information associated with the at least one rotating welding element based on said part identification information using said wireless transceiver of said mobile device; and

convert said rate of rotation to a linear rate of motion using dimension information found as a result of said search corresponding to the at least one rotating welding element.

29. The mobile device of claim 28, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

30. A non-transitory computer-readable medium having computer-executable instructions recorded thereon, said computer-executable instructions capable of being executed by a processing element of a mobile device and providing a motion characterization functionality on the mobile device, said instruction comprising:

instructions for acquiring video data of at least one rotating welding element via a video camera of said mobile device, wherein said at least one rotating welding element includes at least one of a drive roller of a welding wire feeder, a drive roller of a welding gun, a drive roller of a drive system in a cabinet, a roller of a welding wire straightener, a roller of a welding a carriage or tractor, a spool of welding wire, and a welding workpiece;

instructions for tracking at least one feature of the rotating welding element over multiple frames of the video data;

instructions for processing said video data within said mobile device to determine a rate of rotation of said at least one rotating welding element based on said tracking; and

instructions for displaying an indication of said rate of rotation on a display of said mobile device.

31. The non-transitory computer-readable medium of claim 30, wherein the instructions further comprise instructions for:

matching said video data to image data of a rotatable part stored within the mobile device;

correlating said matching image data to dimension information of the rotatable part stored within the mobile device; and

converting said rate of rotation to a linear rate of motion using said dimension information.

32. The non-transitory computer-readable medium of claim 31, wherein the instructions further comprise instructions for displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

33. The non-transitory computer-readable medium of claim 31, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

34. The non-transitory computer-readable medium of claim 30, wherein the instructions further comprise instructions for:

receiving dimension information associated with the at least one rotating welding element via a user interface of the mobile device; and

converting said rate of rotation to a linear rate of motion using said dimension information.

35. The non-transitory computer-readable medium of claim 34, wherein the instructions further comprise instructions for displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

36. The non-transitory computer-readable medium of claim 34, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

37. The non-transitory computer-readable medium of claim 30, wherein the instructions further comprise instructions for:

receiving part identification information associated with the at least one rotating welding element via a user interface of the mobile device;

correlating said part identification information to dimension information associated with the at least one rotating welding element stored within the mobile device; and

converting said rate of rotation to a linear rate of motion using said dimension information.

38. The non-transitory computer-readable medium of claim 37, wherein the instructions further comprise instructions for displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

39. The non-transitory computer-readable medium of claim 37, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

40. The non-transitory computer-readable medium of claim 30, wherein the instructions further comprise instructions for:

searching a computer network for image data of rotatable parts and corresponding dimension information using a wireless capability of said mobile device;

matching said video data to image data of a rotatable part found via said searching; and

converting said rate of rotation to a linear rate of motion using corresponding dimension information of the matching rotatable part found via said searching.

41. The non-transitory computer-readable medium of claim 40, wherein the instructions further comprise instructions for displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

42. The non-transitory computer-readable medium of claim 40, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece.

43. The non-transitory computer-readable medium of claim 30, wherein the instructions further comprise instructions for:

receiving part identification information associated with the at least one rotating welding element via a user interface of said mobile device;

searching a computer network for dimension information associated with the at least one rotating welding element based on said part identification information using a wireless capability of said mobile device; and

converting said rate of rotation to a linear rate of motion using dimension information found via said searching corresponding to the at least one rotating welding element.

44. The non-transitory computer-readable medium of claim 43, wherein the instructions further comprise instructions for displaying at least one of an indication of said linear rate of motion and a graphical plot of said linear rate of motion over time on a display of said mobile device.

45. The non-transitory computer-readable medium of claim 43, wherein said linear rate of motion corresponds to at least one of a wire feed speed of a welding wire, a travel speed of a welding carriage or tractor, and a travel speed of a welding workpiece. ,