CN-122028991-A - Light source for simulating leakage of molten metal, method for confirming operation of device for detecting leakage of molten metal, and method for setting device for detecting leakage of molten metal

CN122028991ACN 122028991 ACN122028991 ACN 122028991ACN-122028991-A

Abstract

The invention provides a light source for simulating leakage of molten metal, which can easily simulate the leakage of molten metal such as steel leakage from a molten metal treatment device. The leakage simulation light source for molten metal is used for simulating leakage of molten metal from a molten metal treatment device, and is provided with a light emitting part capable of adjusting coordinates of a color space of emitted light.

Inventors

KUBOTA YUJI
IDO HIROHARU
KONDO HIROAKI

Assignees

杰富意钢铁株式会社

Dates

Publication Date: 20260512
Application Date: 20240920
Priority Date: 20231027

Claims (8)

1. A light source for simulating leakage of molten metal, which is used for simulating leakage of molten metal from a molten metal treatment apparatus, wherein, The leakage simulation light source for molten metal has a light emitting unit capable of adjusting coordinates of a color space of emitted light.
2. The light source for leakage simulation of molten metal according to claim 1, wherein, The coordinates of the color space of the light emitting unit are adjusted to be within the range of the coordinates of the color space of the pixel in the image data generated by capturing the molten metal.
3. A leakage simulation method of molten metal, in which leakage of molten metal is simulated in a molten metal processing apparatus, A leakage simulation light source for molten metal according to claim 2 is provided to the apparatus to simulate leakage of molten metal from the apparatus.
4. A method for confirming operation of a molten metal leakage detecting device, comprising using the molten metal leakage simulating light source according to claim 1, The leak detection device is provided with: an imaging unit that images the molten metal processing apparatus to generate image data; A data acquisition unit for acquiring pixel number data representing pixels of a specific color included in a predetermined region of the image data, and A detection unit for detecting the occurrence of leakage of molten metal by using the pixel data, The operation confirmation method of the molten metal leakage detection device comprises the following steps: a setting step of setting the leakage simulation light source in the apparatus, wherein coordinates of a color space of the light emitting portion in the leakage simulation light source are adjusted to be within a range of coordinates of a color space of a pixel in image data generated by photographing the molten metal; An image data generation step of generating image data by capturing, with the imaging unit, the image of the device including the leakage simulation light source; A data acquisition step of acquiring pixel number data representing pixels of a specific color included in a predetermined region of the image data, and And a confirmation step of confirming that the detection unit detects the leakage of the molten metal using the pixel count data.
5. A method for confirming operation of a molten metal leakage detecting device, comprising using the molten metal leakage simulating light source according to claim 1, The leak detection device is provided with: an imaging unit that images the molten metal processing apparatus to generate image data; A data acquisition unit for acquiring pixel number data representing pixels of a specific color included in a predetermined region of the image data, and A detection unit for detecting the occurrence of leakage of molten metal by using the pixel data, The operation confirmation method of the molten metal leakage detection device comprises the following steps: A setting step of setting the leakage simulation light source to the apparatus, wherein coordinates of a color space of the light emitting portion in the leakage simulation light source are adjusted to be out of a range of coordinates of a color space of a pixel in image data generated by photographing the molten metal; An image data generation step of generating image data by capturing, with the imaging unit, the image of the device including the leakage simulation light source; A data acquisition step of acquiring pixel number data representing pixels of a specific color included in a predetermined region of the image data, and And a confirmation step of confirming that the detection unit does not detect the leakage of the molten metal using the pixel count data.
6. A method for setting a molten metal leakage detecting device using the molten metal leakage simulation light source according to claim 2, The leak detection apparatus includes: an imaging unit that images the molten metal processing apparatus to generate image data; A data acquisition unit for acquiring pixel number data representing pixels of a specific color included in a predetermined region of the image data, and A detection unit for detecting the occurrence of leakage of molten metal by using the pixel data, The method for setting the molten metal leakage detection device comprises the following steps: A setting step of setting the leakage simulation light source to the device; An image data generation step of generating image data by capturing an image of the device including the leakage simulation light source by the imaging unit, and And setting a setting position of the photographing section using the image data.
7. A method for setting a molten metal leakage detecting device using the molten metal leakage simulation light source according to claim 2, The leak detection apparatus includes: an imaging unit that images the molten metal processing apparatus to generate image data; A data acquisition unit for acquiring pixel number data representing pixels of a specific color included in a predetermined region of the image data, and A detection unit for detecting the occurrence of leakage of molten metal by using the pixel data, The method for setting the molten metal leakage detection device comprises the following steps: A setting step of setting the leakage simulation light source to the device; An image data generation step of generating image data by capturing an image of the device including the leakage simulation light source by the imaging unit, and A setting step of setting a range of coordinates in a color space of the specific color using coordinates in a color space of a pixel representing the leakage simulation light source in the image data.
8. A method for setting a molten metal leakage detecting device using the molten metal leakage simulation light source according to claim 2, The leak detection apparatus includes: an imaging unit that images the molten metal processing apparatus to generate image data; A data acquisition unit for acquiring pixel number data representing pixels of a specific color included in a predetermined region of the image data, and A detection unit for detecting the occurrence of leakage of molten metal by using the pixel data, The method for setting the molten metal leakage detection device comprises the following steps: A setting step of setting the leakage simulation light source to the device; An image data generation step of generating image data by capturing, with the imaging unit, the image of the device including the leakage simulation light source; A data acquisition step of acquiring pixel number data representing pixels of a specific color included in a predetermined region of the image data, and And a setting step of setting a threshold value used by the detecting unit to detect the leakage of the molten metal, using the pixel count data.

Description

Light source for simulating leakage of molten metal, method for confirming operation of device for detecting leakage of molten metal, and method for setting device for detecting leakage of molten metal Technical Field The present invention relates to a light source for leakage simulation of molten metal for simulating leakage of molten metal from a molten metal processing apparatus, a method for simulating leakage of molten metal, a method for confirming operation of a leakage detection device for molten metal, and a method for setting a leakage detection device for molten metal. Background In an apparatus for treating molten metal, an accident involving extremely large damage to the apparatus, such as leakage of molten metal, inevitably occurs. Therefore, when leakage of molten metal occurs, it is necessary to detect the leakage rapidly, and to prevent the expansion of damage to the equipment. As a representative example of the apparatus for treating molten metal, there is a continuous casting machine that continuously casts molten metal. In a continuous casting machine, a failure called a weeping, in which the outer skin of a cast piece breaks and molten metal in the interior is ejected, is inevitably generated. The bleed-out is an abnormal phenomenon occurring in a region where the outer skin of the cast piece is thin, and is mostly generated in a range of 5 meters or less from just below a device called a mold for curing the outer skin of the cast piece. Conventionally, the detection of the steel leakage is performed by visual monitoring by an operator or by a method in which a plurality of sensors such as thermocouples are arranged in advance, for example, the detection is performed based on breakage caused by scattering of molten metal and adhesion to the thermocouples. As a technique for detecting a bleed-out, patent document 1 discloses a technique in which a section of a lower portion of a mold is photographed by a camera, a photographed image is applied to an abnormal state determination logic of an image determination device, occurrence of the bleed-out is detected, and supply of molten steel is automatically stopped. According to patent document 1, pixels whose thresholds of RGB (three primary colors of light) and HSV (hue/chroma/brightness) all fall within a certain range are set to a specific color, the number of pixels representing the specific color is accumulated, and when the instantaneous value of the accumulated value is equal to or greater than a predetermined threshold value, abnormal state determination logic such as occurrence of steel leakage is detected to detect steel leakage. Prior art literature Patent literature Patent document 1 Japanese patent laid-open No. 2001-269770 Disclosure of Invention Problems to be solved by the invention The device disclosed in patent document 1 has a problem that, in a device in which an abnormal state detection device is actually provided, if an abnormal state such as a steel leak does not occur, adjustment of an abnormal state detection function and operation confirmation in the abnormal state detection device are not performed. That is, since it is necessary to tune the determination function using the result obtained by photographing the abnormal state generated in the abnormal state detection device after the abnormal state detection device is installed in the target device, there is a problem that the abnormal state cannot be detected once or several times at first. Further, since abnormal conditions such as steel leakage do not frequently occur, there is also a problem that tuning of the detection function of the abnormal condition detection device requires a lot of time. As a means for solving the problem, a method of tuning a detection function using an abnormal state detection result of a similar device is also considered. However, since the imaging range of the camera differs depending on the device to be imaged, the surrounding environment such as the arrangement of the illumination in the factory also differs, and thus the abnormal state detection result of other similar devices cannot be used to tune the detection function for detecting the abnormal state. The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a light source for leakage simulation of molten metal and a method for leakage simulation of molten metal, which can easily simulate leakage of molten metal such as a steel leakage from a molten metal processing apparatus. Another object of the present invention is to provide a method for confirming an operation of a molten metal leakage detecting device and a method for setting a molten metal leakage detecting device. Means for solving the problems Means for solving the above problems are as follows. [1] A leakage simulation light source for molten metal for simulating leakage of molten metal from a molten metal processing apparatus, wherein the leakage