Patent ID: 11935225
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  B | IPC B  G  H

Claim 12:
13. A processing device,
the processing device performing at least determination processing of determining a state of a weld by using a first image of at least a portion of a weld pool,
the state including
a first state, and
a second state that is more unstable than the first state,

the determination processing determining the weld to be in the second state when ripples exist in the weld pool,
the processing device correcting a condition of the weld when the weld is determined to be in the second state,
the processing device not correcting the condition of the weld when the weld is determined to be in the first state, wherein
the processing device calculates an evaluation value based on a pixel value of the first image,
the state is determined by comparing the evaluation value to a preset determination condition,
the calculating of the evaluation value includes:
calculating a first value of a plurality of the pixel values of the first image, the first value being an average, a sum, or a weighted average; and
calculating a moving average and a fluctuation of the first values of a plurality of the first images, and

the fluctuation is used as the evaluation value.