Method and system for online measurement of cleanliness of mirror steel plate

Abstract

The present disclosure provides an online measurement method for the cleanliness of a mirror steel plate. The online measurement method comprises: setting a first detection area for measuring the surface of the mirror steel plate within the area; in the first detection area, irradiating the same position of the surface of the mirror steel plate entering therein with at least two laser beams at a first preset angle and a second preset angle respectively; detecting the light reflected from the surface of the mirror steel plate, and when diffusely reflected light is detected, determining that the surface of the mirror steel plate in the first detection area is not clean. The present disclosure also provides an online measurement system for the cleanliness of a mirror steel plate, which operates according to the above-mentioned online measurement method. The online measurement method and system for the cleanliness of a mirror steel plate disclosed in the present disclosure can effectively detect defects and types of defects that affect the surface cleanliness of a mirror steel plate.

Description

Technical Field

[0001] The present disclosure relates to the field of material technology, and in particular to an online measurement method and system for the cleanliness of a mirror steel plate. Background Art

[0002] Mirror steel plate refers to the surface of stainless steel plate polished by polishing equipment with abrasive liquid, iron red powder, nitric acid, water, etc. as grinding media. The surface formed by grinding is as clear as a mirror. The full name of copper clad laminate is copper clad laminate, which is a product made of wood pulp paper or glass fiber cloth as reinforcing materials, impregnated with resin, covered with copper foil on one or both sides, and hot pressed. Mirror steel plate is an important tooling in the copper clad laminate industry. It is to sandwich the copper foil and the adhesive sheet for copper clad laminate between the steel plates, and pressurize and heat them in the copper clad laminate laminating machine. As a tooling mold for copper clad laminate manufacturing, the surface cleanliness of mirror steel plate will directly affect the appearance quality of copper clad laminate. And then determine the quality and performance of copper clad laminate products.

[0003] The cleanliness defects of mirror steel plates mainly include scratch pits and resin powder particles. Scratch pits are concave defects, and resin powder particles are convex defects. At present, in addition to manual inspection, CCD is also used for testing the cleanliness of mirror steel plates. However, due to the reflection of light and problems of mirror steel plates, it is difficult to effectively detect mirror steel plates with these two defects. Moreover, the current detection methods cannot quickly distinguish whether it is a concave defect or a convex defect, and it cannot be discovered and distinguished by intelligent equipment. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the present disclosure is to propose an online measurement method for the cleanliness of a mirror steel plate, which can effectively identify defects that affect the cleanliness of the mirror steel plate and improve the detection capability of the cleanliness of the mirror steel plate.

[0005] The present disclosure also aims to provide an online measurement system for the cleanliness of a mirror steel plate, which can effectively detect defects of the mirror steel plate that affect the cleanliness through intelligent devices and equipment.

[0006] Based on the above purpose, the present disclosure provides an online measurement method for the cleanliness of a mirror steel plate, comprising:

[0007] Setting a first detection area for measuring the surface of the mirror steel plate within the area;

[0008] In the first detection area, at least two laser beams are used to irradiate the same position on the surface of the mirror steel plate entering the first detection area at a first preset angle and a second preset angle respectively;

[0009] The light reflected from the surface of the mirror steel plate is detected, and when diffusely reflected light is detected, it is determined that the surface of the mirror steel plate in the first detection area is not clean.

[0010] In the above-mentioned online measurement method, preferably, the two laser beams are lasers of different colors.

[0011] In the above-mentioned online measurement method, it is more preferred to detect the light reflected from the surface of the mirror steel plate. When diffuse reflected light is detected, the color level change of the diffuse reflected light is identified to form different color block distributions. According to whether the color block distribution crosses with the relative position of the two laser beams, it is further determined whether the impurities on the surface of the mirror steel plate are concave defects or convex defects. The color block distribution here means, for example, when a diffuse reflection color level is detected, the color block is identified to form a color block, which is generally a combination of small blocks of the corresponding number of colors formed by lasers of several colors; for example, when the two lasers are distributed on the left and right, the color of the corresponding color block on the left and right is consistent with the color of the laser, which indicates a convex defect. If the color of the color block crosses with the color of the laser, and the left and right colors of the color block and the color of the laser are just swapped, it indicates a concave defect.

[0012] In the above-mentioned online measurement method, preferably, the step of detecting the light reflected from the surface of the mirror steel plate, and when the diffuse reflected light is detected, determining that the surface of the mirror steel plate in the first detection area is unclean comprises:

[0013] Detect the light reflected from the surface of the mirror steel plate and convert the detected results into digital signals;

[0014] The digital signal is judged, and when it is judged to be diffuse reflected light, it is determined that the surface of the mirror steel plate in the first detection area is not clean, and the signal is transmitted to the terminal.

[0015] In the above-mentioned online measurement method, preferably, taking the plane where the mirror steel plate is located as a reference, the first preset angle is 5-45 degrees, and the second preset angle is 5-45 degrees.

[0016] In the above-mentioned online measurement method, preferably, the first preset angle and the second preset angle are consistent; and / or the two laser beams are arranged opposite to each other on the same plane.

[0017] The first preset angle and the second preset angle should be consistent, for example, 5 degrees, 10 degrees, 20 degrees, and 45 degrees. Only when the light beams at the same angle are incident on each other can the recognition function of the present invention be realized.

[0018] In the above-mentioned online measurement method, preferably, the first detection area is a darkroom area.

[0019] In the above-mentioned online measurement method, preferably, the step of transmitting the signal to the terminal includes converting the signal into image information or an alarm sound to complete human-computer interaction.

[0020] The present disclosure provides an online measurement system for the cleanliness of a mirror steel plate, the system comprising at least one group of online measurement devices for the cleanliness of a mirror steel plate, the devices comprising:

[0021] At least two laser emission modules, used for emitting detection lasers;

[0022] A sensing module is used to sense the light reflected by the mirror steel plate and convert the light signal into an analog signal;

[0023] An analog-to-digital conversion processor, used for acquiring an analog signal from the sensing module and converting the analog signal into a digital signal;

[0024] The digital signal processor obtains the digital signal transmitted by the analog-to-digital conversion processor and judges it. If it is determined that the signal source is diffusely reflected light, the digital signal is transmitted to the terminal;

[0025] Terminal, used to convert the signal into recognizable audio-visual information.

[0026] In the above-mentioned online measurement system for cleanliness of mirror steel plate, preferably, the terminal includes: a storage device, a display device, and an alarm device;

[0027] The sensing module includes a CCD sensor.

[0028] The present disclosure also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute an online measurement method for the cleanliness of a mirror steel plate.

[0029] The technical solution disclosed in the present invention sets up a darkroom environment, irradiates the mirror steel plate in the darkroom environment with a laser, detects the light signal of the diffusely reflected light of the mirror steel plate, and visualizes the detection result after a series of conversions; it can effectively detect the defects and defect types that affect the cleanliness of the mirror steel plate on the mirror light plate.

[0030] It can be seen from the above that the technical solution provided by the present disclosure has the following significant beneficial effects:

[0031] The online measurement method and system for the cleanliness of mirror steel plates disclosed herein can replace manual inspection of mirror steel plates, can effectively detect defects and defect types that affect the cleanliness of mirror steel plates, and improve the inspection capability of the cleanliness of mirror steel plates.

[0032] With reference to the following description and drawings, specific embodiments are disclosed in detail, indicating the manner in which the principles of the technical solutions of the present disclosure can be adopted. It should be understood that the embodiments of the present disclosure are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present disclosure include many changes, modifications and equivalents. Features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or replace features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the present disclosure or related technologies, the drawings required for use in the implementation methods or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only implementation methods of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a flow chart of an online measurement method for the cleanliness of a mirror steel plate according to an embodiment of the present disclosure;

[0035] Figure 2 It is a schematic block diagram of an online detection device for the cleanliness of a mirror steel plate according to an embodiment of the present disclosure;

[0036] Figure 3 It is a schematic diagram of the operation of a set of online detection devices for the cleanliness of mirror steel plates according to an embodiment of the present disclosure;

[0037] Figure 4 The figure shows the operation of the online detection device for the cleanliness of two groups of mirror steel plates according to the embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] In the embodiments of the present disclosure, the defects that affect the cleanliness of the steel plate mainly include scratch pits and resin powder particles, one of which is a concave defect and the other is a convex defect. In order to effectively detect defects that affect cleanliness and identify and distinguish defects, the embodiments of the present disclosure use CCD photosensitivity to sense diffuse reflected light and the color blocks of reflected light on the mirror steel plate identified by sensing, and confirm the type of concave according to the color arrangement on the color block.

[0041] Figure 1 The figure is a flow chart of an online measurement method for the cleanliness of a mirror steel plate.

[0042] The present disclosure provides a feasible specific implementation method, which can effectively detect the defect types on the surface of the mirror steel plate. Figure 1 As shown, a method for measuring the cleanliness of a mirror steel plate online is provided, comprising:

[0043] Setting a first detection area for measuring the surface of the mirror steel plate within the area;

[0044] In the first detection area, at least two laser beams are used to irradiate the same position on the surface of the mirror steel plate entering the first detection area at a first preset angle and a second preset angle respectively;

[0045] The light reflected from the surface of the mirror steel plate is detected, and when diffusely reflected light is detected, it is determined that the surface of the mirror steel plate in the first detection area is not clean.

[0046] In order to better detect diffuse reflection, in a further specific embodiment, the two laser beams are lasers of different colors.

[0047] Specifically, in order to detect the cleanliness of the mirror steel plate in a specific area, at least one first detection area is set to place the mirror steel plate to be detected, and the mirror steel plate to be detected is placed in the first detection area; the detection area can only place the mirror steel plate, or at least part of the detection equipment. In the first detection area, a beam of colored laser is used to irradiate the surface of the mirror steel plate entering the first detection area at a first preset angle; another beam of other color laser is used to irradiate the surface of the mirror steel plate entering the first detection area at a second preset angle; in this embodiment, red and blue lasers are used for irradiation; after the mirror steel plate surface is irradiated by laser, reflected light is generated, and then the reflected light is detected. If the detection device detects diffuse reflected light, the surface of the mirror steel plate detection position in the first detection area is unclean, and the surface may be attached with resin powder, small-sized residual glue, or concave scratches, etc.

[0048] In order to classify the impurities on these surfaces, in a further specific embodiment, the light reflected from the surface of the mirror steel plate is detected. When diffusely reflected light is detected, the color level changes of the diffusely reflected light are identified to form different color block distributions. Based on whether the color block distribution and the relative position of the two laser beams intersect, it is further determined whether the impurities on the surface of the mirror steel plate are concave defects or convex defects.

[0049] In order to further implement the detection of the light reflected from the surface of the mirror steel plate and determine whether the surface of the mirror steel plate is clean, it is necessary to use some methods to convey the results to people and realize human-computer interaction. Therefore, in a further specific implementation, an online measurement method for the cleanliness of a mirror steel plate is provided to detect the light reflected from the surface of the mirror steel plate. When diffusely reflected light is detected, it is determined that the surface of the mirror steel plate in the first detection area is unclean.

[0050] Detect the light reflected from the surface of the mirror steel plate and convert the detected results into digital signals;

[0051] The digital signal is judged, and when it is judged to be diffuse reflected light, it is determined that the surface of the mirror steel plate in the first detection area is not clean, and the signal is transmitted to the terminal.

[0052] Specifically, after irradiating the surface of the mirror steel plate with light, the surface of the mirror steel plate will reflect the light; the optical signal of the reflected light is detected by the sensor; if the sensor detects the optical signal, the sensor will convert the optical signal into an analog signal; then the analog signal is converted into a digital signal by the analog-to-digital conversion processor; then the digital signal processor will judge the digital signal, and based on the acquired digital signal, it is determined that the detection position of the mirror steel plate surface in the first detection area is unclean; the digital signal is transmitted to the terminal; if the surface of the mirror steel plate is clean, the sensor will not detect the optical signal and will not generate a digital signal.

[0053] In a further specific embodiment, an online measurement method for the cleanliness of a mirror steel plate comprises:

[0054] Setting a first detection area for measuring the surface of the mirror steel plate within the area;

[0055] In the first detection area, at least two laser beams are used to irradiate the same position on the surface of the mirror steel plate entering the first detection area, respectively, with the plane where the mirror steel plate is located as the reference, and the preset angles may be 5 degrees, 10 degrees, 15 degrees, 25 degrees, 45 degrees, etc.;

[0056] The light reflected from the surface of the mirror steel plate is detected, and when diffusely reflected light is detected, it is determined that the surface of the mirror steel plate in the first detection area is not clean.

[0057] Specifically, a first detection area is set up to place a detection device and a mirror steel plate, and the mirror steel plate to be detected is placed in the first detection area; in the first detection area, two laser emitters are set on the same plane of the mirror steel plate; the incident angles of the two laser emitters are consistent; a red laser emitter is used to emit a beam of red laser to irradiate the position to be detected on the surface of the mirror steel plate entering the first detection area at a first preset angle of 5 degrees; a blue laser emitter is used to emit a beam of blue laser to irradiate the same position to be detected on the surface of the mirror steel plate entering the first detection area at a second preset angle of 5 degrees; after the mirror steel plate surface is irradiated by the laser, reflected light is generated, and then the reflected light is detected, if the sensor detects diffusely reflected light, the surface of the mirror steel plate detection position in the first detection area is not clean; if the sensor fails to detect the reflected light signal, the detection position on the surface of the mirror steel plate in the first detection area is clean.

[0058] In order to make the detection result more accurate and detect the light signal more conveniently, the first detection area set should be a darkroom area; the darkroom area can eliminate all interference of light on the detection; it can improve the accuracy of the detection result and facilitate observation of the detection process and results.

[0059] In a further specific embodiment, an online measurement method for the cleanliness of a mirror steel plate comprises:

[0060] The first preset angle is 20°;

[0061] The second preset angle is consistent with the first preset angle; the two laser beams are arranged opposite to each other on the same plane;

[0062] The first preset angle and the second preset angle are located on the same side of the mirror steel plate.

[0063] In this specific implementation, the preset angle may also be 5 degrees, 10 degrees, 15 degrees, 25 degrees, 45 degrees, etc., but preferably the angle is greater than 30 degrees.

[0064] Specifically, when the laser incident angle is greater than 30°, if there are defects in the area to be tested, the incident light is diffusely reflected; it is difficult for the sensing device to detect the scattered light of the incident light, which may cause inaccurate detection results, increase the workload or miss defects; using two beams of light to simultaneously detect the same position on the same side of the mirror steel plate, the output form of the two beams of light can be used to specifically determine whether the defect at the detected position is a convex defect or a concave defect.

[0065] A specific implementation method of an online measurement method for the cleanliness of a mirror steel plate comprises the following steps: setting a first detection area in which a detection device and a mirror steel plate can be placed, and placing the mirror steel plate to be detected in the first detection area; in order to make the detection result more accurate and to detect the light signal more conveniently, the first detection area should be a darkroom area; the darkroom area can eliminate all interference of light on the detection; the accuracy of the detection result can be improved, and it is also convenient to observe the detection process and results; in the first detection area, a red laser emitter is used to emit a red laser beam to irradiate the surface of the mirror steel plate entering the first detection area at a first preset angle; a blue laser emitter is used to emit a blue laser beam to irradiate the surface of the mirror steel plate entering the first detection area at a second preset angle; after the mirror steel plate surface is irradiated by the laser, reflected light is generated, and then the reflected light is detected. If the detection device detects diffusely reflected light, resin or small particles of glue exist on the surface of the mirror steel plate detection position in the first detection area.

[0066] In a further specific embodiment, in order to better receive diffuse reflected light and preliminarily determine the defect type that affects the cleanliness of the mirror steel plate, two laser beams are set. Taking the plane where the mirror steel plate is located as a reference, the first preset angle is 10 degrees, and the second preset angle is 10 degrees. A beam of light reflected by a red laser emitted at a first preset angle on one side of the sensing device; another beam of light reflected by a blue laser emitted at a second preset angle on the other side of the sensing device; if the two light beams are sensed by the sensor, the diffuse reflection spots formed are red and blue spots, then the detection area on the surface of the mirror steel plate is a protrusion defect, and the protrusion defect may be attached resin powder or small particle size residual glue; if the two light beams are sensed by the sensor, the diffuse reflection spots formed are blue and red spots, then the detection area on the surface of the mirror steel plate is a concave defect, and the concave defect may be a pit or scratch.

[0067] In a further specific embodiment, the first preset angle and the second preset angle are consistent; and / or the two laser beams are arranged opposite to each other on the same plane. The second preset angle is consistent with the first preset angle, and / or is symmetrically arranged, in order to make the detection process more rigorous and accurate, ensure that the light scattering line is symmetrical, and avoid the influence of erroneous judgment on the detection result caused by light scattering after irradiation at different angles.

[0068] As an alternative, the first preset angle and the second preset angle are kept consistent, the two lasers may not be in the same plane, the axis of the laser detection area perpendicular to the surface of the mirror steel plate can be used as the axis center, and the projection of the laser beam on the mirror steel plate can be used as the reference line. The two reference lines can form an angle greater than 0 degree and less than 180 degrees.

[0069] In order to better sense diffuse reflected light and prevent interference from other light, in a specific embodiment of the present disclosure, the first detection area is a darkroom area.

[0070] In order to realize human-computer interaction, in a further specific implementation, the acquired digital signal is transmitted to the terminal device, which can be a display device or an alarm device. If it is a display device, the digital signal is converted into images, text and other information that can be displayed on the display device; and the relevant personnel are notified. At the same time, information including images, sounds, digital information, etc. can be stored in the terminal storage device; the terminal can also be connected to the alarm device, and the connected alarm device emits a corresponding alarm sound to notify the relevant personnel.

[0071] Based on the same inventive concept, corresponding to any of the above-mentioned implementation methods, the present disclosure also provides an online measurement system for the cleanliness of a mirror steel plate, which includes at least one group of online measurement devices for the cleanliness of a mirror steel plate.

[0072] like Figure 2 As shown, Figure 2 Schematic diagram of an online measurement device for the cleanliness of a mirror steel plate, the online measurement device for the cleanliness of a mirror steel plate comprises:

[0073] At least two laser emitting modules 201, used for emitting detection lasers;

[0074] The sensing module 204 is used to sense the light reflected by the mirror steel plate and convert the light signal into an analog signal;

[0075] The analog-to-digital conversion processor 205 is used to obtain the analog signal of the sensing module and convert the analog signal into a digital signal;

[0076] The digital signal processor 206 obtains the digital signal transmitted by the analog-to-digital conversion processor, and judges it. If it is determined that the signal source is diffusely reflected light, the digital signal is transmitted to the terminal;

[0077] Terminal 207 is used to convert the signal into recognizable audio-visual information.

[0078] Specifically, in this specific embodiment, the mirror steel plate cleanliness online measurement device is implemented specifically according to the above-mentioned mirror steel plate cleanliness online measurement method through the opinion equipment. The laser emission module 201 emits lasers of different colors to the surface of the mirror steel plate; when there are unclean places on the surface of the mirror steel plate, the laser irradiated thereon will be diffusely reflected, and the sensing module 204 senses the light signal scattered by the diffuse reflection; after receiving the light signal, an output current is generated and converted into an electronic analog signal; the analog-to-digital conversion processor 205 obtains the analog signal of the sensing module 204 and converts the analog signal into a digital signal; the digital signal processor 206 obtains the digital signal transmitted by the analog-to-digital conversion processor 205, and judges it. If it is judged that the signal source is diffusely reflected light, the digital signal is transmitted. The terminal 207 converts the digital signal into an image, text signal or sound signal that is easy to observe.

[0079] In a parallel specific embodiment, a mirror steel plate cleanliness online measurement system includes at least two groups of mirror steel plate cleanliness online measurement devices. Each group of mirror steel plate cleanliness online measurement devices is the same as the above embodiment. In this embodiment, the two groups of mirror steel plate cleanliness online measurement devices are respectively arranged on two surfaces of the mirror steel plate, and the two surfaces of the mirror steel plate can be detected at the same time.

[0080] In a specific implementation of the present disclosure, the terminal includes: a storage device, a display device, and an alarm device; and the sensing module includes a CCD sensor.

[0081] The present disclosure also provides an online measurement method for the cleanliness of a mirror steel plate, such as Figure 3As shown, the above-mentioned mirror steel plate cleanliness online measurement system uses a group of mirror steel plate cleanliness online measurement devices, including a red laser transmitter 401, a blue laser transmitter 402, a mirror steel plate 403, a sensor 404, an analog-to-digital conversion processor 405, a digital signal processor 406, a terminal 407, and a conveying roller 408; the conveying roller 408 is used to convey the mirror steel plate 403; a first detection area is set to place the detection device and the mirror steel plate 403, and the mirror steel plate 403 to be detected is placed in the first detection area; in order to make the detection result more accurate and more convenient to detect the light signal, the first detection area set should be a darkroom area; the darkroom area can exclude all light from the detection interference with measurement; the accuracy of the detection result can be improved, and it is also convenient to observe the detection process and results; in the first detection area, two laser emitters are arranged on the same plane of the mirror steel plate 403, and the laser emitters can be a red laser emitter 401 and a blue laser emitter 402; the incident angles of the two laser emitters are consistent; a sensor 404 is arranged between the two laser emitters; the sensor 404 can be other sensors such as CCD, CMOS, etc.; an analog-to-digital conversion processor 405 is arranged; a digital signal processor 406 is arranged; a terminal 407 is arranged; wherein, information interaction can be realized among the sensor 404, the analog-to-digital conversion processor 405, the digital signal processor 406 and the terminal 407.A red laser emitter 401 emits a beam of red laser to illuminate the position to be detected on the surface of the mirror steel plate 403 entering the first detection area at a first preset angle of 5-45 degrees; a blue laser emitter 402 emits a beam of blue laser to illuminate the same position to be detected on the surface of the mirror steel plate 403 entering the first detection area at a second preset angle of 5-45 degrees; after the light is irradiated on the surface of the mirror steel plate 403, the surface of the mirror steel plate 403 will reflect the light; the optical signal of the reflected light is detected by the sensor 404; if the sensor 404 detects the optical signal, the sensor 404 converts the optical signal into an analog signal; then the analog signal is converted into a digital signal by the analog-to-digital conversion processor 405; then the digital signal processor 406 determines the digital signal and converts it into a digital signal according to the acquired digital signal. digital signal, judge that the detection position on the surface of the mirror steel plate 403 in the first detection area is unclean; transmit the digital signal to the terminal 407; after the acquired digital signal is transmitted to the terminal 407, the terminal 407 processes the digital signal and converts the digital signal into image information; the display device connected to the terminal 407 will display the processed image information; the type of the image information can be further analyzed to further judge the pollutants on the surface of the mirror steel plate; if the diffuse reflection color spots formed when the two light rays are sensed by the sensor are red and blue spots, the detection area on the surface of the mirror steel plate is a protrusion defect, which may be attached resin powder or small-sized residual glue; if the diffuse reflection color spots formed when the two light rays are sensed by the sensor are blue and red spots, the detection area on the surface of the mirror steel plate is a concave defect, which may be a pit or a scratch. Terminal 407 stores the final judgment result in the storage device in terminal 407; then the alarm device connected to terminal 407 responds to achieve the final human-computer interaction; if sensor 404 fails to detect the reflected light signal, the detection position on the surface of the mirror steel plate 403 in the first detection area is clean.

[0082] The present disclosure also provides an online measurement method for the cleanliness of a mirror steel plate, such as Figure 4As shown, the above-mentioned mirror steel plate cleanliness online measurement system uses two sets of mirror steel plate cleanliness online measurement devices, including: a red laser emitter 401, a blue laser emitter 402, a red laser emitter 409, a blue laser emitter 410, a mirror steel plate 403, a sensor 404, a sensor 411, an analog-to-digital conversion processor 405, a digital signal processor 406, a terminal 407, and a conveying roller 408; the conveying roller 408 is used to convey the mirror steel plate 403; a detection device and the mirror steel plate 403 are placed on the conveying roller 408; The mirror steel plate 403 to be detected is placed in the first detection area; in order to make the detection result more accurate and the light signal more convenient to detect, the first detection area set should be a darkroom area; the darkroom area can eliminate all light interference with the detection; the accuracy of the detection result can be improved, and it is also convenient to observe the detection process and results; in the first detection area, two laser emitters are set on the same plane of the mirror steel plate 403, and the laser emitters can be a red laser emitter 401 and a blue laser emitter 402; the incident angles of the two laser emitters are consistent; a sensor 404 is set between the two laser emitters; the sensor 404 can be other sensors such as CCD, CMOS, etc.; an analog-to-digital conversion processor 405 is set; a digital signal processor 406 is set; a terminal 407 is set; and a group of mirror steel plate cleanliness online measurement devices are set on the other side of the mirror steel plate, such as Figure 4As shown, two laser emitters, the laser emitters may be a red laser emitter 409 and a blue laser emitter 410; the incident angles of the two laser emitters are consistent; a sensor 411 is arranged between the two laser emitters; the sensor 411 may be a CCD, CMOS or other sensor; wherein information exchange may be realized between the sensor 404, the sensor 411, the analog-to-digital conversion processor 405, the digital signal processor 406 and the terminal 407. Two sets of online measuring devices are used to detect both sides of the mirror steel plate at the same time. A red laser emitter 401 emits a beam of red laser to illuminate the position to be detected on the surface of the mirror steel plate 403 entering the first detection area at a first preset angle of 5-45 degrees; a blue laser emitter 402 emits a beam of blue laser to illuminate the same position to be detected on the surface of the mirror steel plate 403 entering the first detection area at a second preset angle of 5-45 degrees; at the same time, a red laser emitter 409 emits a beam of red laser to illuminate the other side of the mirror steel plate at the first preset angle of 5-45 degrees. The mirror steel plate 403 that enters the first detection area is illuminated at a position to be detected on the surface of the mirror steel plate 403; a blue laser emitter 410 is used to emit a blue laser beam to illuminate the same position to be detected on the surface of the mirror steel plate 403 that enters the first detection area at a second preset angle of 5-45 degrees; after the light is irradiated on the surface of the mirror steel plate 403, the surface of the mirror steel plate 403 will reflect the light; the light signal of the reflected light is detected by the sensor 404 or the sensor 411; if the sensor 404 or the sensor 411 detects a diffusely reflected light signal, the sensor 404 or sensor 411 converts the optical signal into an analog signal; then the analog signal is converted into a digital signal through an analog-to-digital conversion processor 405; then the digital signal processor 406 determines the digital signal, and according to the acquired digital signal, determines that the detection position on the surface of the mirror steel plate 403 in the first detection area is unclean; transmits the digital signal to terminal 407; after the acquired digital signal is transmitted to terminal 407, terminal 407 processes the digital signal and converts the digital signal into image information; terminal 40 The display device connected to 7 will display the processed image information; the type of the image information can be further analyzed to further judge the pollutants on the surface of the mirror steel plate; if the diffuse reflection color spots formed when the two light rays are sensed by the sensor are red and blue spots, the detection area on the surface of the mirror steel plate is a protrusion defect, which may be attached resin powder or residual glue with small particle size; if the diffuse reflection color spots formed when the two light rays are sensed by the sensor are blue and red spots, the detection area on the surface of the mirror steel plate is a concave defect, which may be a pit or scratch.Terminal 407 stores the final judgment result in the storage device in terminal 407; then the alarm device connected to terminal 407 responds to achieve the final human-computer interaction; if sensor 404 or sensor 411 fails to detect the reflected light signal, the detection position on the surface of the mirror steel plate 403 in the first detection area is clean.

[0083] Based on the same inventive concept, corresponding to any of the above-mentioned implementation methods, the present disclosure also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the online measurement method for the cleanliness of the mirror steel plate as described in any of the above implementation methods.

[0084] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0085] The computer instructions stored in the storage medium of the above embodiment are used to enable the computer to execute the online measurement system for cleanliness of mirror steel plates as described in any of the above embodiments, and have the beneficial effects of the corresponding method implementation methods, which will not be repeated here.

[0086] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; based on the concept of the present disclosure, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of the embodiments of the present disclosure as described above, which are not provided in detail for the sake of simplicity.

[0087] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present disclosure difficult to understand, the known power / ground connections to the integrated circuit (IC) chips and other components may or may not be shown in the provided figures. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present disclosure difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which the embodiments of the present disclosure will be implemented (that is, these details should be fully within the scope of understanding of those skilled in the art). Where specific details (e.g., circuits) are set forth to describe exemplary embodiments of the present disclosure, it is obvious to those skilled in the art that the embodiments of the present disclosure can be implemented without these specific details or with changes in these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0088] Although the present disclosure has been described in conjunction with specific embodiments of the present disclosure, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0089] The embodiments of the present disclosure are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A method for measuring the cleanliness of a mirror steel plate online, comprising: Setting a first detection area for measuring the surface of the mirror steel plate within the area; In the first detection area, at least two laser beams of different colors are used to irradiate the same position of the surface of the mirror steel plate entering therein at a first preset angle and a second preset angle, respectively, so that the light incident at the first preset angle is symmetrical to the light incident at the second preset angle; detecting the light reflected from the surface of the mirror steel plate, and when diffusely reflected light is detected, determining that the surface of the mirror steel plate in the first detection area is unclean; and The light reflected from the surface of the mirror steel plate is detected. When diffuse reflected light is detected, the color level change of the diffuse reflected light is identified to form different color block distributions. According to whether the color block distribution crosses the relative position of the two laser beams, it is further determined whether the impurities on the surface of the mirror steel plate are concave defects or convex defects.

2. The online measurement method according to claim 1, characterized in that: The first detection area is a dark room area.

3. The online measurement method according to claim 1, characterized in that: The step of detecting the light reflected from the surface of the mirror steel plate and determining that the surface of the mirror steel plate in the first detection area is unclean when diffusely reflected light is detected includes: Detect the light reflected from the surface of the mirror steel plate and convert the detected results into digital signals; The digital signal is judged, and when it is judged to be diffuse reflected light, it is determined that the surface of the mirror steel plate in the first detection area is not clean, and the signal is transmitted to the terminal.

4. The online measurement method according to claim 1, characterized in that: Taking the plane where the mirror steel plate is located as a reference, the first preset angle is 5-45 degrees, and the second preset angle is 5-45 degrees.

5. The online measurement method according to claim 4, characterized in that: The first preset angle is consistent with the second preset angle; and / or, The two laser beams are arranged opposite to each other on the same plane.

6. The online measurement method according to claim 1, characterized in that: The first detection area is a dark room area.

7. The online measurement method according to claim 1, characterized in that: The step of transmitting the signal to the terminal includes converting the signal into image information or alarm sound to complete human-computer interaction.

8. An online measurement system for the cleanliness of a mirror steel plate, characterized by: The system includes at least one set of mirror steel plate cleanliness online measurement device, the device includes: At least two laser emission modules, used for emitting detection lasers; A sensing module is used to sense the light reflected by the mirror steel plate and convert the light signal into an analog signal; An analog-to-digital conversion processor, used for acquiring an analog signal from the sensing module and converting the analog signal into a digital signal; The digital signal processor obtains the digital signal transmitted by the analog-to-digital conversion processor and judges it. If it is determined that the signal source is diffusely reflected light, the digital signal is transmitted to the terminal; Terminal, used to convert the signal into recognizable audio-visual information.

9. The mirror steel plate cleanliness online measurement system according to claim 8, characterized in that: The terminal comprises: Storage devices, display devices, alarm devices; The sensing module includes a CCD sensor.

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