IMPORTING AND ANALYZING EXTERNAL DATA USING A VIRTUAL REALITY WELDING SYSTEM

• US 20150348438A1
• Filed: 08/07/2015
• Published: 12/03/2015
• Est. Priority Date: 08/21/2008
• Status: Active Grant

• Current Assignee: Lincoln Global Incorporated (Lincoln Electric Holdings Incorporated)
• Original Assignee: Lincoln Global Incorporated (Lincoln Electric Holdings Incorporated)
• Inventors: ZBORAY, David Anthony, BENNETT, Matthew Alan, WALLACE, Matthew Wayne, HENNESSEY, Jeremiah, DUDAC, Yvette Christine, LENKER, Zachary Steven, LUNDELL, Andrew Paul, DANA, Paul, PREISZ, Eric A.
• Granted Patent: US 9,293,056 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A42B 3/042 Optical devices night vision goggles G02B23/12
• CPC Class Codes: A42B 3/30 Mounting radio sets or communication systems
• CPC Class Codes: A61F 9/06 Masks, shields or hoods for welders safety devices for welding in general F16P1/00
• CPC Class Codes: B23K 9/00 Arc welding or cutting electro-slag welding B23K25/00; welding transformers H01F; welding generators H02K
• CPC Class Codes: B23K 9/09 Arrangements or circuits for arc welding with pulsed current or voltage
• CPC Class Codes: B23K 9/095 Monitoring or automatic control of welding parameters
• CPC Class Codes: B23K 9/0953 using computing means
• CPC Class Codes: B23K 9/0956 using sensing means, e.g. optical
• CPC Class Codes: B23K 9/10 Other electric circuits therefor; Protective circuits; Remote controls
• CPC Class Codes: G09B 19/24 Use of tools
• CPC Class Codes: G09B 5/00 Electrically-operated educational appliances working with questions and answers G09B7/00; simulators G09B9/00; advertising or displaying in general G09F
• CPC Class Codes: G09B 5/02 with visual presentation of the material to be studied, e.g. using film strip
• CPC Class Codes: G09B 5/04 with audible presentation of the material to be studied sound recording or reproducing G11B
• CPC Class Codes: G09B 5/06 with both visual and audible presentation of the material to be studied
• CPC Class Codes: G09B 5/065 Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
• CPC Class Codes: H04L 67/131 Protocols for games, networked simulations or virtual reality

Abstract

A real-time virtual reality welding system including a programmable processor-based subsystem, a spatial tracker operatively connected to the programmable processor-based subsystem, at least one mock welding tool capable of being spatially tracked by the spatial tracker, and at least one display device operatively connected to the programmable processor-based subsystem. The system is capable of simulating, in virtual reality space, a weld puddle having real-time molten metal fluidity and heat dissipation characteristics. The system is further capable of importing data into the virtual reality welding system and analyzing the data to characterize a student welder'"'"'s progress and to provide training.

Claims

1. A system for simulating welding activity;

said system comprising;

a welding tool for a simulated welding operation;

an optical tracker which tracks a movement and orientation of said welding tool using at least one optical sensor;

a welding coupon;

a helmet comprising a first display device to display a simulated welding operation to a user;

a simulated welding console having a user input system and a second display device to display said simulated welding operation; and

a processor based subsystem located within said simulated welding console which is operatively coupled to said optical tracker and receives information from said optical tracker related to said movement and orientation of said welding tool;

wherein during said simulated welding operation, said processor based subsystem models a simulated welding surface for said welding coupon and displays said simulated welding surface on each of said first and second display devices;

wherein during said simulated welding operation, said processor based subsystem creates a simulated welding arc between an emitting end of said welding tool and said simulated welding surface and simulates the creation of a weld puddle have real-time molten metal fluidity and real-time heat dissipation characteristics during said simulated welding operation;

wherein said simulated weld puddle has a plurality of welding elements, where each of said welding elements has a first value representative of displacement and a second value representative of heat, where each of said first and second values change dynamically during said simulated welding operation to display on each of said first and second display devices the simulated deposition of material into said simulated weld puddle, and where said dynamic changes are based on said movement and orientation of said welding tool; and

wherein said processor based subsystem displays a simulated completed weld bead on said first and second display devices which is based on said movement and orientation of said welding tool, and based on a cooling threshold value for a transition of said welding elements from a molten state to a solid state.

2. The simulated welding system of claim 1, wherein said optical tracker is mounted on said helmet.

3. The simulated welding system of claim 1, wherein said helmet further comprises an audio speaker which provides simulated welding sounds in real-time with the simulated welding operation.

4. The simulated welding system of claim 1, wherein said processor based subsystem simulates at least one welding parameter during said simulated welding operation and compares said simulated welding parameter to a stored value for said welding parameter, and wherein said processor based subsystem displays said comparison on said second display device.

5. The simulated welding system of claim 4, wherein said comparison is displayed in graphical form.

6. The simulated welding system of claim 1, wherein said processor based subsystem simulates at least one welding parameter during said simulated welding operation and compares said simulated welding parameter to a tolerance window defined by limits around a setpoint for said welding parameter, and wherein said processor based subsystem displays said comparison on said second display device.

7. The simulated welding system of claim 6, wherein said comparison is displayed in graphical form.

8. The simulated welding system of claim 1, wherein said processor based subsystem simulates a plurality of welding parameters during said simulated welding operation and provides a score for each of said welding parameters based on a comparison between said simulated welding parameters and a desired value for each of said welding parameters, respectively.

9. The simulated welding system of claim 1, wherein said processor based subsystem simulates a plurality of welding parameters during said simulated welding operation and determines the presence of a discontinuity within said simulated weld bead, where said discontinuity is the presence of at least one of spatter and porosity.

10. The simulated welding system of claim 9, wherein said first display device displays said discontinuity during said simulated welding operation, in real time, and in said completed simulated weld bead.

11. The simulated welding system of claim 1, wherein said processor based subsystem generates and displays on said first display device at least one welding effect, which can be any one of simulated welding sparks, simulated welding spatter, simulated arc glow and simulated porosity during said simulated welding operation, and where said at least one welding effect is displayed, in real time, based on at least one simulated welding parameter.

12. The simulated welding system of claim 1, wherein said processor based subsystem changes said first value of at least some of said welding elements of said completed weld bead when said welding tool is used to make a second simulated weld bead over said completed weld bead, and where each of said completed weld bead and said second simulated weld bead are displayed on said first and second display devices at the same time.

13. A system for simulating welding activity;

said system comprising;

a welding tool for a simulated welding operation;

an optical tracker which tracks a movement and orientation of said welding tool using at least one optical sensor;

a welding coupon;

a helmet comprising a first display device to display a simulated welding operation to a user;

a simulated welding console having a user input system and a second display device to display said simulated welding operation; and

a processor based subsystem located within said simulated welding console which is operatively coupled to said optical tracker and receives information from said optical tracker related to said movement and orientation of said welding tool;

wherein during said simulated welding operation, said processor based subsystem models a simulated welding surface for said welding coupon and displays said simulated welding surface on each of said first and second display devices;

wherein during said simulated welding operation, said processor based subsystem simulates the creation of a weld puddle have real-time molten metal fluidity and real-time heat dissipation characteristics during said simulated welding operation;

wherein said simulated weld puddle has a plurality of welding elements, where each of said welding elements has a first value representative of displacement and a second value representative of heat, where each of said first and second values change dynamically during said simulated welding operation to display on each of said first and second display devices the simulated deposition of material into said simulated weld puddle, and where said dynamic changes are based on said movement and orientation of said welding tool; and

wherein said processor based subsystem displays a simulated completed weld bead on said first and second display devices which is based on said movement and orientation of said welding tool, and based on a cooling threshold value for a transition of said welding elements from a molten state to a solid state;

wherein when said second value is higher than said cooling threshold value said first and second display devices display said welding elements in a simulated fluid state and when said second value is lower than said cooling threshold value said first and second display devices display said welding elements in a solid state.

14. A system for simulating welding activity;

said system comprising;

a welding tool for a simulated welding operation;

an optical tracker which tracks a movement and orientation of said welding tool using at least one optical sensor;

a welding coupon;

a helmet comprising a first display device to display a simulated welding operation to a user and said optical tracker;

a simulated welding console having a user input system and a second display device to display said simulated welding operation, where said second display device displays a plurality of welding parameters, in real-time, during said simulated welding operation; and

a processor based subsystem located within said simulated welding console which is operatively coupled to said optical tracker and receives information from said optical tracker related to said movement and orientation of said welding tool and uses said information for said plurality of welding parameters;

wherein during said simulated welding operation, said processor based subsystem models a simulated welding surface for said welding coupon and displays said simulated welding surface on each of said first and second display devices;

wherein during said simulated welding operation, said processor based subsystem creates a simulated welding arc between an emitting end of said welding tool and said simulated welding surface and simulates the creation of a weld puddle having real-time molten metal fluidity and real-time heat dissipation characteristics during said simulated welding operation;

wherein said simulated weld puddle has a plurality of welding elements, where each of said welding elements has a first value representative of displacement and a second value representative of heat, where each of said first and second values change dynamically during said simulated welding operation to display on each of said first and second display devices the simulated deposition of material into said simulated weld puddle, and where said dynamic changes are based on said movement and orientation of said welding tool;

wherein said processor based subsystem displays a simulated completed weld bead on said first and second display devices which is based on said movement and orientation of said welding tool, and based on a cooling threshold value for a transition of said welding elements from a molten state to a solid state, and

wherein at least one of said welding parameters is displayed in graphical form in real time during said simulated welding operation on said second display device.

17. The simulated welding system of claim 14, wherein said processor based subsystem compares at least one of said welding parameters to a tolerance window defined by limits around a setpoint for said at least one welding parameter, and wherein said processor based subsystem displays said comparison on said second display device.

18. The simulated welding system of claim 14, wherein said processor based subsystem provides a score for each of said welding parameters based on a comparison between said welding parameters and a desired value for each of said welding parameters, respectively.

19. The simulated welding system of claim 18, wherein each of said first and second display devices display said discontinuity during said simulated welding operation, in real time, and in said completed simulated weld bead.

20. The simulated welding system of claim 14, wherein said processor based subsystem generates and displays on said first display device at least one welding effect, which can be any one of simulated welding sparks, simulated welding spatter, simulated arc glow and simulated porosity during said simulated welding operation, and where said at least one welding effect is displayed, in real time, based on at least one of said welding parameters.

15. The simulated welding system of claim 23, wherein said helmet further comprises an audio speaker which provides simulated welding sounds in real-time with the simulated welding operation.

16. The simulated welding system of claim 23, wherein said welding parameters include weld angle, travel angle, and travel speed.