Abstract: Proposed are a camera unit and a welding information providing apparatus including the same. The camera unit may include a camera module configured to obtain a welding image frame in a welding operation area according to photographing conditions. The camera unit may also include an illuminance sensor configured to detect an intensity of light within the welding operation area. The camera unit may further include a controller configured to determine, based on the intensity of light detected by the illuminance sensor, an operation mode of the camera module to be one of a first mode or a second mode, and change photographing conditions of the camera module to preset photographing setting values according to the determined mode.

Abstract: The present disclosure relates to a welding information providing apparatus. The welding information providing apparatus includes a body provided to be wearable by a user, a camera unit including a first camera mounted on the body and configured to image a welding site in which welding work is not in progress to acquire a video frame and a second camera mounted in a position different from the first camera and configured to image a welding site in which welding work is in progress to acquire a video frame, a video generating unit configured to generate and provide a processed image based on the video frame acquired by the first camera or the second camera, and a display unit configured to display the processed image provided from the video generating unit to the user.

Abstract: A welding information providing device is proposed. The device may include a body provided to cover at least a portion of a worker' face and including a first region facing the worker' face and a second region located in a region opposite to the first region. The device may also include a camera unit located in the second region of the body and capturing a welding video to acquire a video frame. The device may further include a display unit located in the first region of the body and providing a video generated through the video frame.

Abstract: Disclosed is a method for execution by a computing device. The method involves establishing a communication channel for communicating with a client device using link-layer encryption, and attempting to authenticate the client device using authentication-layer encryption on top of the link-layer encryption. The method also involves receiving a command from the client device over the communication channel, and if the client device has been authenticated, executing the command. Notably, the link-layer encryption offers some degree of security because network traffic over the communication channel is encrypted, but does not offer adequate protection from all cyber attacks. However, the authentication-layer encryption adds an additional layer of security on top of the link-layer encryption, which can help to avoid or mitigate cyber attacks.

Abstract: Embodiments of the present disclosure provide a welding protector including a helmet unit, a mounting frame unit, a cartridge unit including an information display portion, and a movement control unit, and allowing an operator to directly view related work information through the information display portion during welding operation to improve user convenience.

Abstract: The present disclosure according to at least one embodiment provides a method of processing operations of a polynomial-based security algorithm, the method being performed by a computing system. The method comprises identifying a plurality of operations using secret information in the polynomial-based security algorithm, generating a random index to be applied to the identified operations, and performing the operations using the random index.

Abstract: A welding information providing device is proposed. The device can provide a high-quality image that can easily identify a welding surrounding environment in addition to a portion adjacent to welding light by synthesizing images obtained under various photographing conditions. The device can also improve welding quality by providing an efficient guiding to an operator with respect to a current welding operation state. The device can include a cartridge unit that is located on a main body and selectively shields welding light, at least one camera unit that faces outward and obtains a welding image frame of a welding operation, and a sensor unit that detects a degree of light in at least a welding operation area. The device can also include an image display and a processor that provides a welding image generated through the welding image frame to the image display unit.

Abstract: Provided is a welding system. The welding system includes a welding information providing device for generating and displaying information related to welding and a welding torch for generating an electric arc on a welding base material. The welding information providing device may include a first projection unit for projecting a marker on the welding base material and a first camera unit for photographing the marker projected on the welding base material.

Abstract: A welding system includes a welding information providing device configured to generate and display information related to welding and a welding torch configured to generate an electric arc in a welding base material. The welding torch includes a first panel unit having mounted thereon a marker configured to identify a welding location.

Abstract: Provided is a facial protection apparatus including a main body having an opening area that is opened forward and being wearable by a user, a shield portion covering the opening area formed in the main body and detachably connected to the main body, and an opening/closing portion installed on the main body and opening/closing an insertion path of the shield portion that is inserted in the main body, so as to protect the face of the user against foreign matters during an operation and to have an improved convenience in use.

Abstract: A liquid crystal panel includes a first glass plate and a second glass plate facing each other, a liquid crystal cell arranged between the first glass plate and the second glass plate, a first spacer arranged between the first glass plate and the liquid crystal cell, and configured to space the liquid crystal cell from the first glass plate, and a second spacer arranged between the second glass plate and the liquid crystal cell, and configured to space the liquid crystal cell from the second glass plate, wherein the liquid crystal cell includes a first sheet, a second sheet spaced apart from the first sheet, and a liquid crystal layer arranged between the first sheet and the second sheet.

Abstract: Provided is a welding information providing apparatus including a main body provided to be worn by a user, a camera unit including at least one camera attached to an outer side of the main body and obtaining welding image frames with respect to a welding operation, a display unit disposed inside the main body and providing a welding image to the user, and a processor configured to control the display unit to display the welding image generated based on the welding image frames, wherein the camera unit obtains the welding image frame by setting or disabling an auto-focus (AF) function according to an input of the user or pre-set conditions.

Abstract: Provided is a phase grating liquid crystal (PGLC) device including a transparent substrate; a first electrode on the transparent substrate; a second electrode on the transparent substrate; and a liquid crystal (LC) layer on the first and second electrodes; wherein the first electrode includes a first bus line, and a plurality of first branch electrodes connected to the first bus line, and a plurality of second branch electrodes connected to the second bus line, and wherein the first and second electrodes are at the same level with respect to the transparent substrate.

Abstract: This application relates to a welding information providing device. The device can provide a high-quality image that can easily identify a welding surrounding environment in addition to a portion adjacent to welding light by synthesizing images obtained under various photographing conditions. The device can also improve welding quality by providing an efficient guiding to an operator with respect to a current welding operation state. The device can include a cartridge unit that is located on a main body and selectively shields welding light, at least one camera unit that faces outward and obtains a welding image frame of a welding operation, and a sensor unit that detects a degree of light in at least a welding operation area. The device can also include an image display and a processor that provides a welding image generated through the welding image frame to the image display unit.

Abstract: According to an embodiment of the present disclosure, provided is a welding protector including a head band including a band main body including a front support portion for supporting forehead of a user, a rear band portion arranged opposite to the band main body, and a support band portion connected to the front support portion and supporting an upper portion of the user's head, a face shield rotatably connected to the head band and protecting face of the user, and an auxiliary shield protecting a part of the user's head, wherein the auxiliary shield and the head band are connected to each other.

Abstract: Provided is a welding information providing apparatus capable of providing a high-definition image allowing easy identification of welding surroundings in addition to a portion adjacent to welding light by synthesizing photographs taken through various imaging conditions; improving welding quality by providing efficient guiding to the worker regarding a current welding status; checking what is happening in the surroundings even during a welding operation; and easily performing welding even in an environment where it is difficult to perform welding.

Abstract: An embodiment of the present disclosure discloses an eye protection structure for protecting a worker, the eye protection structure including a window convex outward to cover both eyes of the worker, wherein the window includes a transmissive portion, the transmissive portion includes an inner surface facing the worker's face and an outer surface opposite to the inner surface, a first radius of curvature of the outer surface of the transmissive portion and a second radius of curvature of the inner surface of the transmissive portion are different from each other, and a thickness of a central portion of the transmissive portion is greater than a thickness of an edge portion of the transmissive portion.

Abstract: Provided are a method and apparatus for automatically generating a welding procedure specification (WPS) by using a machine learning algorithm. The method, performed by a processor of a WPS generating apparatus, of automatically generating a WPS by using a machine learning algorithm, includes collecting a WPS transmission request signal together with welding-related information including a welding material for a welding target and a thickness of the welding material, generating a WPS corresponding to the welding-related information by using a machine learning model pre-trained to generate the WPS by using the welding-related information, and transmitting a WPS response signal together with the generated WPS, in response to the WPS transmission request signal, wherein the machine learning model is a model trained through supervised learning using training data in which the welding-related information is an input and the WPS corresponding to the welding-related information is a label.

Abstract: 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.