Welding Image Filtering With Variable Transmittance Control
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Solution Overview
Problem
Welding workers face difficulties in accurately viewing the welding spot and surrounding environment, especially when smoke is generated, due to high-luminance conditions, which hinders their ability to recognize detailed information and improves welding accuracy.
Innovation Solution
A welding image processing device equipped with a camera unit and a processor that controls the transmittance of a cartridge based on sensor values, allowing for the acquisition of clear welding images by filtering welding light, thereby enabling high-definition image capture without the need for high-end cameras.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high-end camera is used to capture welding images in high-luminance conditions, then image quality is improved, but manufacturing cost increases
Solution Approach 1:
The patent introduces a cartridge as an intermediary component between the welding light source and the camera. This cartridge selectively transmits certain wavelengths of light while blocking others, enabling a standard camera to capture clear welding images without requiring expensive high-end equipment. The cartridge acts as a mediator that modifies the optical properties of the welding light to make it compatible with conventional imaging devices.
Solution Approach 2:
The patent changes the optical parameters of the welding light by using a cartridge with specific transmittance characteristics. By controlling which wavelengths pass through the cartridge, the system transforms the high-luminance welding light into a form that can be captured by standard cameras, thereby improving image quality without increasing manufacturing costs.
2Illumination intensity
If welding light intensity is increased to improve visibility of the welding spot, then visibility is improved, but image capture becomes difficult due to excessive luminance
Solution Approach 1:
The patent applies local quality by using a cartridge that selectively transmits specific wavelengths of light while blocking others. This creates a localized modification of the light properties, allowing the welding spot to remain brightly visible to the worker while the camera captures an image with appropriate contrast and detail. The cartridge differentiates between the worker's visual needs and the camera's imaging requirements.
Solution Approach 2:
The patent utilizes wavelength-selective transmission through the cartridge, which effectively changes the spectral composition (color) of the light reaching the camera. By blocking certain wavelengths and transmitting others, the system enables the camera to capture images with proper luminance levels even when the welding light intensity is high, thus resolving the contradiction between visibility and image capture quality.
3Object-affected harmful factors
If protective gear is worn to protect from welding light, then safety is improved, but ability to view welding details with naked eye is reduced
Solution Approach 1:
The cartridge serves as an optical intermediary that enables the camera to see through the protective filtering that the worker must wear. By capturing images with the same wavelength selectivity as the protective gear, the system provides visual information that complements the worker's protected view, allowing them to see details that would otherwise be invisible through the protective mask.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides improved welding accuracy by capturing high-definition images of the welding spot and environment, even in high-luminance conditions, reducing manufacturing costs and enhancing image quality through controlled light transmittance.
Implementation Method 1
controlling a transmittance of a cartridge on the basis of a sensor value received from a sensor and acquiring a welding image through the camera unit on the basis of light passing through the cartridge having the controlled transmittance
Data Source
AI summary
A welding image processing device and method are provided. The welding image processing device includes: a camera unit configured to capture an image of a welding portion; a cartridge arranged to be adjacent to a camera module; and a processor. The processor is configured to control a transmittance of the cartridge on the basis of a sensor value received from a sensor and acquire a welding image through the camera unit on the basis of light passing through the cartridge having the controlled transmittance.