Control of mediated reality welding system based on lighting conditions

Patent metadata

Field	Value
Publication number	US-9977242-B2
Application number	US-201715497908-A
Country	US
Kind code	B2
Filing date	Apr 26, 2017
Priority date	Mar 26, 2015
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

An example head-worn device includes a camera, a display device, weld detection circuitry, and pixel data processing circuitry. The camera generates first pixel data from a field of view of the head-worn device. The display device displays second pixel data to a wearer of the head-worn device based on the first pixel data captured by the camera. The weld detection circuitry determines whether a welding arc is present and generates a control signal indicating a result of the determination. The pixel data processing circuitry processes the first pixel data captured by the camera to generate the second pixel data for display on the display device, where a mode of operation of said pixel data processing circuitry is selected from a plurality of modes based on said control signal.

First claim

What is claimed is:

1. A head-worn device, comprising:
a receiver circuit configured to receive a communication;
a camera configured to generate first pixel data from a field of view of the head-worn device;
a display device to display second pixel data to a wearer of the head-worn device based on the first pixel data captured by the camera;
weld detection circuitry configured to:
determine whether the welding arc is present based on the communication; and
generate a control signal indicating a result of the determination; and
pixel data processing circuitry configured to process the first pixel data captured by the camera to generate the second pixel data for display on the display device, wherein a mode of operation of said pixel data processing circuitry is selected from a plurality of modes based on said control signal.

2. The head-worn device as defined in claim 1 , wherein the weld detection circuitry is configured to:
detect an electromagnetic field associated with the welding arc; and
determine whether the welding arc is present based on the electromagnetic field.

3. The head-worn device as defined in claim 1 , wherein the weld detection circuitry is configured to:
receive one or more signals from a corresponding one or more of a temperature sensor, an accelerometer, a touch sensor, or a gesture sensor; and
determine whether the welding arc is present based on the one or more signals.

4. The head-worn device as defined in claim 1 , wherein the display device is configured to overlay the second pixel data over a real view to create an augmented reality view for the wearer of the display device.

5. A head-worn device, comprising:
a camera configured to generate first pixel data from a field of view of the head-worn device;
a display device to display second pixel data to a wearer of the head-worn device based on the first pixel data captured by the camera;
weld detection circuitry configured to:
receive a signal representative of a weld current flowing through a weld torch;
determine whether the welding arc is present based on the signal; and
generate a control signal indicating a result of the determination; and

pixel data processing circuitry configured to process the first pixel data captured by the camera to generate the second pixel data for display on the display device, wherein a mode of operation of said pixel data processing circuitry is selected from a plurality of modes based on said control signal.

6. The head-worn device as defined in claim 5 , wherein the mode of operation of the pixel data processing circuitry is selected based on a weld current level indicated by the signal.

7. The head-worn device as defined in claim 5 , wherein the signal comprises a communication from at least one of a welding-type power supply, a wire feeder, or a welding-type torch.

8. A head-worn device, comprising:
a microphone to receive an audio signal;
a camera configured to generate first pixel data from a field of view of the head-worn device;
a display device to display second pixel data to a wearer of the head-worn device based on the first pixel data captured by the camera;
weld detection circuitry configured to:
determine whether a welding arc is present; and
generate a control signal indicating a result of the determination; and

pixel data processing circuitry configured to process the first pixel data captured by the camera to generate the second pixel data for display on the display device, wherein a mode of operation of said pixel data processing circuitry is selected from a plurality of modes based on said control signal, at least one of the processing the first pixel data or the mode of operation of the pixel data processing circuitry being based on the audio signal.

Assignees

• Illinois Tool Works

Inventors

• Patel Nishank
• Dandu Praveen

Classifications

• G01R29/08

  Measuring electromagnetic field characteristics · CPC title

• G02F2201/58

  Arrangements comprising a monitoring photodetector · CPC title

• A61F9/061

  with movable shutters, e.g. filter discs; Actuating means therefor · CPC title

• G06T19/006

  Mixed reality (object pose determination, tracking or camera calibration for mixed reality G06T7/00) · CPC title

• G09G5/10

  Intensity circuits · CPC title