Method, device and equipment for determining deviation of strip steel in furnace and medium

Abstract

The invention discloses a method, device and equipment for determining deviation of strip steel in a furnace and a medium, and belongs to the technical field of metallurgy. The method comprises the steps that a first monitoring image in a furnace and the position of a preset datum line are obtained, and the first monitoring image comprises a picture of complete strip steel; first left and right boundary line positions of strip steel on a furnace roller in the first monitoring image are extracted; and determining whether the strip steel deviates or not according to the positions of the first left and right boundary lines and the position of the datum line. According to the method, the running image of the strip steel can be obtained through the camera, then the image is processed, whether the strip steel deviates or not can be accurately judged, the image quality is not affected by temperature and vibration, and the judgment accuracy is very high.

Description

Technical Field

[0001] The present application relates to the field of metallurgical technology, and in particular to a method, device, equipment and medium for determining deviation of strip steel in a furnace. Background Art

[0002] Strip deviation in the furnace refers to the phenomenon that the strip deviates from the center line of the furnace roller. Once the strip deviates in the furnace, if the operator does not handle it properly, the strip is likely to scrape against the furnace wall, and in serious cases, the strip may break, affecting the efficient and stable operation of the unit.

[0003] In the prior art, a position detection sensor is installed in the furnace to detect the position of the steel strip, and finally the detection result of the position detection sensor is used to determine whether the steel strip has deviated. However, the temperature in the furnace is high, and the operation of the steel strip will cause vibration. If the position detection sensor works in this environment for a long time, the detection performance of the sensor will be reduced or the position will be shifted, which will eventually lead to inaccurate detection results and inaccurate judgment of the steel strip's deviation. Therefore, how to accurately determine whether the steel strip has deviated is a technical problem that needs to be solved urgently. Summary of the invention

[0004] In view of the above problems, the present application is proposed in order to provide a method, device, equipment and medium for determining the deviation of the strip steel in the furnace to solve the above problems. The running image of the strip steel can be obtained by a camera, and then the image can be processed to accurately determine whether the strip steel has deviated. The image quality is not affected by temperature and vibration, so that the accuracy of the judgment is very high.

[0005] In a first aspect, the present application provides a method for determining deviation of strip steel in a furnace, the method comprising:

[0006] Acquire a first monitoring image in the furnace and a position of a preset reference line, wherein the first monitoring image includes a running image of a complete steel strip;

[0007] Extracting positions of first left and right boundary lines of the strip on the furnace roller in the first monitoring image;

[0008] Whether the steel strip has deviated is determined according to the positions of the first left and right boundary lines and the position of the reference line.

[0009] Optionally, before acquiring the first monitoring image in the furnace and the position of the preset baseline, the method further includes:

[0010] Acquire a second monitoring image in the furnace when the deviation correction amount of the deviation correction roller is less than a set value;

[0011] The center line between the second left and right boundary lines of the strip steel on the furnace roller in the second monitoring image is determined as the reference line.

[0012] Optionally, determining whether the strip steel is deviated according to the positions of the first left and right boundary lines and the position of the reference line includes:

[0013] Calculate a first vertical distance between the first left boundary line and the baseline, and a second vertical distance between the first right boundary line and the baseline according to the positions of the first left and right boundary lines and the position of the baseline;

[0014] Calculating a difference between the first distance and the second distance;

[0015] If the difference is greater than or equal to a preset first threshold value and less than or equal to a preset second threshold value, it is determined that the strip steel has not deviated;

[0016] If the difference is smaller than the first threshold or larger than the second threshold, it is determined that the strip is deviated.

[0017] Optionally, if the difference is less than the first threshold or greater than the second threshold, determining that the strip is deviating includes:

[0018] If the difference is less than the first threshold, it is determined that the strip steel is deviating to the right side;

[0019] If the difference is greater than the second threshold, it is determined that the steel strip is deviating to the left.

[0020] Optionally, calculating a first vertical distance between the first left boundary line and the baseline, and a second vertical distance between the first right boundary line and the baseline according to the positions of the first left and right boundary lines and the position of the baseline, includes:

[0021] Acquire the width of the steel strip in the first monitoring image;

[0022] Calculating the number of first pixels between the first left boundary line and the baseline, and the number of second pixels between the first right boundary line and the baseline according to the positions of the first left and right boundary lines and the position of the baseline;

[0023] Calculating the sum of the first number of pixel points and the second number of pixel points;

[0024] Multiplying the ratio of the first number of pixel points to the sum by the width to obtain a first vertical distance between the first left boundary line and the reference line;

[0025] The second vertical distance between the first right boundary line and the reference line is obtained by multiplying the ratio of the second number of pixel points to the sum value by the width.

[0026] Optionally, after determining that the strip steel is deviating, the method further includes:

[0027] Determine the difference as the strip deviation amount;

[0028] If the strip deviation amount is greater than a preset first deviation amount threshold, an alarm is issued.

[0029] Optionally, after determining the difference as the strip deviation amount, the method further includes:

[0030] If the strip deviation is greater than a preset second deviation threshold, the furnace zone operating speed is reduced or the furnace is shut down.

[0031] In a second aspect, the present application provides a device for determining deviation of strip steel in a furnace, the device comprising:

[0032] A first acquisition module, used to acquire a first monitoring image in the furnace and a position of a preset reference line, wherein the first monitoring image includes a picture of a complete steel strip;

[0033] An extraction module, used for extracting the positions of first left and right boundary lines of the strip on the furnace roller in the first monitoring image;

[0034] The first determination module is used to determine whether the strip steel has deviated according to the positions of the first left and right boundary lines and the position of the reference line.

[0035] Optionally, the device further comprises:

[0036] A second acquisition module is used to acquire a second monitoring image in the furnace when the deviation correction amount of the deviation correction roller is less than a set value;

[0037] The second determining module is used to determine the center line between the second left and right boundary lines of the strip steel on the furnace roller in the second monitoring image as the reference line.

[0038] Optionally, the first determining module includes:

[0039] a first calculating unit, configured to calculate a first vertical distance between the first left boundary line and the baseline, and a second vertical distance between the first right boundary line and the baseline according to positions of the first left and right boundary lines and the position of the baseline;

[0040] a second calculation unit, configured to calculate a difference between the first distance and the second distance;

[0041] A first determination unit, configured to determine that the strip steel has not deviated if the difference is greater than or equal to a preset first threshold value and less than or equal to a preset second threshold value;

[0042] The second determination unit is used to determine that the strip is deviated if the difference is smaller than the first threshold or larger than the second threshold.

[0043] Optionally, the second determining unit is further configured to:

[0044] If the difference is less than the first threshold, it is determined that the strip steel is deviating to the right side;

[0045] If the difference is greater than the second threshold, it is determined that the steel strip is deviating to the left.

[0046] Optionally, the first computing unit is further configured to:

[0047] Acquire the width of the steel strip in the first monitoring image;

[0048] Calculating the number of first pixels between the first left boundary line and the baseline, and the number of second pixels between the first right boundary line and the baseline according to the positions of the first left and right boundary lines and the position of the baseline;

[0049] Calculating the sum of the first number of pixel points and the second number of pixel points;

[0050] Multiplying the ratio of the first number of pixel points to the sum by the width to obtain a first vertical distance between the first left boundary line and the reference line;

[0051] The second vertical distance between the first right boundary line and the reference line is obtained by multiplying the ratio of the second number of pixel points to the sum value by the width.

[0052] Optionally, the device further comprises an alarm module, which is used to:

[0053] Determine the difference as the strip deviation amount;

[0054] If the strip deviation amount is greater than a preset first deviation amount threshold, an alarm is issued.

[0055] Optionally, the device further includes a control module, configured to:

[0056] If the strip deviation is greater than a preset second deviation threshold, the furnace zone operating speed is reduced or the furnace is shut down.

[0057] In a third aspect, the present application provides an electronic device comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method described in the first aspect by executing the computer instructions.

[0058] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the method described in the first aspect.

[0059] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0060] The embodiment of the present application provides a method, device, equipment and medium for determining the deviation of strip steel in a furnace, which can obtain the first monitoring image in the furnace and the position of a preset baseline, wherein the first monitoring image includes a running image of the complete strip steel, and the position of the strip steel is understood by means of the monitoring image; the position of the first left and right boundary lines of the strip steel on the furnace roller in the first monitoring image is extracted, and the position of the strip steel is reflected by the position of the first left and right boundary lines; according to the position of the first left and right boundary lines and the position of the baseline, whether the strip steel is deviated is determined, and the position of the first left and right boundary lines is compared with the position of the baseline, so as to more accurately determine whether the strip steel is deviated. The method can obtain the running image of the strip steel through a camera, and then process the image, so as to accurately determine whether the strip steel is deviated, and the image quality is not affected by temperature and vibration, so that the accuracy of the judgment is very high.

[0061] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0063] Figure 1 It is a flow chart of a method for determining deviation of strip steel in a furnace provided in an embodiment of the present application;

[0064] Figure 2 is a schematic diagram of a first monitoring image provided by an embodiment of the present application;

[0065] Figure 3 is a schematic diagram of a baseline provided in an embodiment of the present application;

[0066] Figure 4 is a schematic diagram of a first vertical distance and a second vertical distance provided in an embodiment of the present application;

[0067] Figure 5 This is a structural block diagram of a device for determining strip deviation in a furnace provided in an embodiment of the present application. DETAILED DESCRIPTION

[0068] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0069] Figure 1 : is a flow chart of a method for determining deviation of strip steel in a furnace provided in an embodiment of the present application, such as Figure 1 As shown, the method includes:

[0070] Step S110: Acquire a first monitoring image in the furnace and a position of a preset baseline.

[0071] The first monitoring image includes a running image of the complete steel strip.

[0072] In this embodiment, a camera can be arranged in the furnace to collect monitoring images in the furnace. The camera can be arranged on the top of the entrance or exit of each furnace zone to ensure that the running images of the strip steel on multiple furnace rollers can be captured, and at the same time, it is also necessary to ensure that the strip steel on the furnace rollers in the monitoring image is complete and not missing, so as to avoid the subsequent steps being unable to accurately determine whether the strip steel is deviated.

[0073] In this embodiment, the first monitoring image may be a monitoring image of any stage during the production of the steel strip.

[0074] Figure 2 is a schematic diagram of a first monitoring image provided by an embodiment of the present application, such as Figure 2 As shown, the strip steel on the furnace roller 1 in the first monitoring image is complete, and the running picture of the entire strip steel on the furnace roller 1 can be captured. At the same time, the first monitoring image also includes the correcting roller 2 and the strip steel on the correcting roller 2.

[0075] The term "furnace inside" may refer to a continuous annealing furnace, and of course, may also refer to other furnaces as long as there is strip steel running in the furnace.

[0076] Optionally, before step S110, the method further includes:

[0077] A second monitoring image in the furnace is obtained when the deviation correction amount of the deviation correction roller is less than a set value; and a center line between second left and right boundary lines of the strip steel on the furnace roller 1 in the second monitoring image is determined as a reference line.

[0078] In this embodiment, a reference line needs to be set in advance, and the reference line is used as a reference to determine whether the strip is deviated. In general, the reference line is the center line of the furnace roller 1, but the monitoring image is affected by the shooting angle and shooting range, and it is difficult to directly extract the center line of the furnace roller 1, so an additional reference line needs to be set.

[0079] When the deviation correction amount of the deviation correction roller 2 is less than the set value, it means that the strip has not deviated and the deviation correction roller 2 has not corrected the deviation. Therefore, the strip captured by the monitoring image at this time has not deviated and should be located in the middle of the furnace roller 1. Since the centerline position of the strip cannot be directly obtained from the monitoring image, the position of the left and right boundary lines of the strip is used to reflect the position of the strip.

[0080] Figure 3 is a schematic diagram of a baseline provided in an embodiment of the present application, such as Figure 3 As shown, the left and right boundary lines of the strip on the furnace roller 1 are extracted from the monitoring image at this time (i.e., the second monitoring image), which are recorded as the second left and right boundary lines A. Because the strip has not deviated at this time, the center line of the strip is basically consistent with the center line of the furnace roller 1. Therefore, the center line between the second left and right boundary lines A (i.e., the center line of the strip) is used as the reference line B.

[0081] Step S120, extracting the positions of the first left and right boundary lines of the strip on the furnace roller in the first monitoring image.

[0082] In this embodiment, the first monitoring image is used to display the real-time operation image of the steel strip, and the extracted first left and right boundary lines are also the left and right boundary lines during the real-time operation of the steel strip. The centerline position of the steel strip cannot be directly obtained from the first monitoring image, and therefore the real-time position of the steel strip is reflected by the position of the first left and right boundary lines.

[0083] Step S130: Determine whether the strip is deviated based on the position of the first left and right boundary lines and the position of the reference line B.

[0084] In this embodiment, the position of the first left and right boundary lines can reflect the real-time position of the steel strip, so according to the position of the first left and right boundary lines and the position of the reference line B, it can be accurately determined whether the steel strip is deviated.

[0085] Optionally, step S130 includes:

[0086] The first step is to calculate a first vertical distance between the first left boundary line and the baseline B, and a second vertical distance between the first right boundary line and the baseline B according to the positions of the first left and right boundary lines and the position of the baseline B.

[0087] Figure 4 is a schematic diagram of a first vertical distance and a second vertical distance provided in an embodiment of the present application, such as Figure 4 As shown, after knowing the position of the first left and right boundary line C and the position of the reference line B, the first vertical distance d1 and the second vertical distance d2 between the first left and right boundary line C and the reference line B can be calculated. The d1 and d2 can be used to further determine whether the strip has deviated.

[0088] Optionally, the first step includes:

[0089] Obtain the width of the strip in the first monitoring image; calculate the number of first pixels between the first left boundary line and the baseline B, and the number of second pixels between the first right boundary line and the baseline B according to the position of the first left and right boundary lines C and the position of the baseline B; calculate the sum of the first number of pixels and the second number of pixels; multiply the ratio of the first number of pixels to the sum by the width to obtain the first vertical distance d1 between the first left boundary line and the baseline B; multiply the ratio of the second number of pixels to the sum by the width to obtain the second vertical distance d2 between the first right boundary line and the baseline B.

[0090] In this embodiment, one implementation of calculating the first vertical distance d1 and the second vertical distance d2 is by analyzing the number of pixels in the image.

[0091] Specifically, the first vertical distance d1 and the second vertical distance d2 can be determined by the following formula:

[0092]

[0093] Among them, N1 represents the number of first pixel points, N2 represents the number of second pixel points, and W represents the width of the strip.

[0094] In this embodiment, the positions of the first left and right boundary lines C and the position of the reference line B are marked in the first monitoring image, and pixel extraction is performed on the first monitoring image, so that the number of first pixel points between the first left boundary line and the reference line B, and the number of second pixel points between the first right boundary line and the reference line B can be extracted. The sum of the number of first pixel points and the number of second pixel points is the number of all pixel points between the first left and right boundary lines C, and the width corresponding to the number of all pixel points is the width of the strip. By calculating the proportion of the first pixel point in the number of all pixel points and multiplying it by the width of the strip, the width between the first left boundary line and the reference line B, that is, the first vertical distance d1, can be obtained. Similarly, the width between the first right boundary line and the reference line B, that is, the second vertical distance d2, can be calculated.

[0095] In this embodiment, another implementation method for calculating the first vertical distance d1 and the second vertical distance d2 is to calculate them through coordinates. Specifically, a coordinate system can be established in the first monitoring image to obtain the position coordinates of the baseline B and the position coordinates of the first left and right boundary lines C, and the first vertical distance d1 and the second vertical distance d2 can be calculated based on the coordinates.

[0096] Step 2: Calculate the difference between the first distance and the second distance.

[0097] In this embodiment, if the steel strip has not deviated, the distance between the first left boundary line and the reference line B is substantially equal to the distance between the first right boundary line and the reference line B, that is, the center line of the steel strip substantially coincides with the reference line B. Therefore, by the difference between the first vertical distance d1 and the second vertical distance d2, it can be determined whether the steel strip has deviated.

[0098] Step 3: If the difference is greater than or equal to the preset first threshold value and less than or equal to the preset second threshold value, it is determined that the strip has not deviated.

[0099] In this embodiment, if the difference is greater than or equal to the preset first threshold and less than or equal to the preset second threshold, it means that the center line of the steel strip basically coincides with the reference line B at this time, so the steel strip has not deviated.

[0100] Step 4: If the difference is less than the first threshold or greater than the second threshold, it is determined that the strip is deviating.

[0101] In this embodiment, if the difference is less than the first threshold or greater than the second threshold, it means that the center line of the steel strip deviates from the reference line B, so the steel strip has deviated.

[0102] Optionally, the fourth step includes:

[0103] If the difference is less than the first threshold, it is determined that the strip is deviating to the right; if the difference is greater than the second threshold, it is determined that the strip is deviating to the left.

[0104] In this embodiment, the direction of the strip's deviation can be further determined based on the size of the difference. If the difference is less than the first threshold, it means that the first vertical distance d1 is less than the second vertical distance d2, so the center line of the strip should deviate to the right side of the reference line B, and the strip deviates to the right; if the difference is greater than the second threshold, it means that the first vertical distance d1 is greater than the second vertical distance d2, so the center line of the strip should deviate to the left side of the reference line B, and the strip deviates to the left.

[0105] Exemplarily, the first threshold and the second threshold are 0, then when the difference is less than 0, the strip deviates to the right; when the difference is greater than 0, the strip deviates to the left; when the difference is equal to 0, the strip does not deviate.

[0106] For example, d1 is 765.6 mm, d2 is 782.4 mm, and d1-d2 is -16.8<0, then it is judged that the strip is deviating to the right side.

[0107] In this embodiment, the center line position of the strip can also be determined based on the position of the first left and right boundary lines C, and the degree of overlap between the center line position and the position of the reference line B can be directly compared. If the degree of overlap is greater than a preset degree of overlap threshold, it is determined that the strip has not deviated; if the degree of overlap is less than or equal to the degree of overlap threshold, it is determined that the strip has deviated.

[0108] Optionally, after the fourth step, the method further comprises:

[0109] Step 5: Determine the difference as the strip deviation amount.

[0110] In this embodiment, the deviation amount of the strip can be further determined, and the difference can reflect the degree of deviation between the center line of the strip and the reference line B, so the difference is used as the deviation amount of the strip.

[0111] Step 6: If the strip deviation is greater than the preset first deviation threshold, an alarm is issued.

[0112] In this embodiment, if the strip deviates slightly, an alarm will be sounded to remind the staff to pay attention to prevent the strip from further deviating and affecting normal production.

[0113] Optionally, after the fifth step, the method further comprises:

[0114] If the strip deviation is greater than the preset second deviation threshold, the furnace zone operating speed is reduced or the furnace is shut down.

[0115] The second deviation threshold is greater than the first deviation threshold.

[0116] In this embodiment, if the strip deviation is too large, it is likely to affect normal production, so the furnace zone operation speed can be reduced to slow down the strip deviation speed and provide sufficient deviation correction time for the deviation correction roller 2. Alternatively, the machine can be directly controlled to stop to prevent the strip from scratching the furnace wall and causing safety accidents.

[0117] Based on the same application concept, the embodiment of the present application also provides a device for determining the deviation of strip steel in a furnace. Figure 5 is a structural block diagram of a device for determining deviation of strip steel in a furnace provided in an embodiment of the present application, such as Figure 5 As shown, the device 500 includes a first acquisition module 501 , an extraction module 502 and a first determination module 503 .

[0118] A first acquisition module 501 is used to acquire a first monitoring image in the furnace and a position of a preset reference line, wherein the first monitoring image includes a picture of a complete steel strip;

[0119] An extraction module 502 is used to extract the positions of the first left and right boundary lines of the strip on the furnace roller in the first monitoring image;

[0120] The first determination module 503 is used to determine whether the strip steel has deviated according to the positions of the first left and right boundary lines and the position of the reference line.

[0121] Optionally, the device 500 further includes:

[0122] A second acquisition module is used to acquire a second monitoring image in the furnace when the deviation correction amount of the deviation correction roller is less than a set value;

[0123] The second determining module is used to determine the center line between the second left and right boundary lines of the strip steel on the furnace roller in the second monitoring image as the reference line.

[0124] Optionally, the first determining module 503 includes:

[0125] A first calculation unit, configured to calculate a first vertical distance between the first left boundary line and the baseline, and a second vertical distance between the first right boundary line and the baseline according to positions of the first left and right boundary lines and the position of the baseline;

[0126] A second calculation unit, used for calculating a difference between the first distance and the second distance;

[0127] A first determination unit, configured to determine that the strip steel has not deviated if the difference is greater than or equal to a preset first threshold value and less than or equal to a preset second threshold value;

[0128] The second determination unit is used to determine that the strip is deviating if the difference is less than the first threshold or greater than the second threshold.

[0129] Optionally, the second determining unit is further configured to:

[0130] If the difference is less than the first threshold, it is determined that the strip is deviating to the right;

[0131] If the difference is greater than the second threshold, it is determined that the strip is deviating to the left.

[0132] Optionally, the first computing unit is further configured to:

[0133] Acquire the width of the steel strip in the first monitoring image;

[0134] Calculate the number of first pixels between the first left boundary line and the baseline, and the number of second pixels between the first right boundary line and the baseline according to the positions of the first left and right boundary lines and the position of the baseline;

[0135] Calculate the sum of the first pixel number and the second pixel number;

[0136] The first vertical distance between the first left boundary line and the reference line is obtained by multiplying the ratio of the first number of pixel points to the sum value by the width;

[0137] The ratio of the second number of pixel points to the sum is multiplied by the width to obtain a second vertical distance between the first right boundary line and the reference line.

[0138] Optionally, the device 500 further includes an alarm module, which is used to:

[0139] The difference is determined as the strip deviation amount;

[0140] If the strip deviation is greater than the preset first deviation threshold, an alarm will be issued.

[0141] Optionally, the device 500 further includes a control module, configured to:

[0142] If the strip deviation is greater than the preset second deviation threshold, the furnace zone operating speed is reduced or the furnace is shut down.

[0143] It can be understood that the device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0144] An embodiment of the present application also provides an electronic device, which may include a processor and a memory, wherein the processor and the memory may be communicatively connected to each other via a bus or other means.

[0145] The processor may be a central processing unit (CPU) or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0146] The memory may include a large capacity memory for data or instructions. By way of example and not limitation, the memory may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory may include a removable or non-removable (or fixed) medium. Where appropriate, the memory may be inside or outside the electronic device. In a particular embodiment, the memory may be a non-volatile solid-state memory.

[0147] In one example, the memory may be a read-only memory (ROM). In one example, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or a flash memory, or a combination of two or more of these.

[0148] The processor implements any one of the methods for determining the deviation of the strip steel in the furnace in the above embodiments by reading and executing the computer program instructions stored in the memory.

[0149] In one example, the electronic device may further include a communication interface and a bus. Among them, the processor, memory, and communication interface are connected through a bus and communicate with each other. The communication interface is mainly used to realize the communication between the modules, devices, units and / or devices in the embodiment of the present application. Where appropriate, the bus may include one or more buses.

[0150] In addition, in combination with the method for determining the deviation of the strip steel in the furnace in the above embodiment, the embodiment of the present application can provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the methods for determining the deviation of the strip steel in the furnace in the above embodiment is implemented.

[0151] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0152] The embodiment of the present application provides a method, device, equipment and medium for determining the deviation of strip steel in a furnace, which can obtain the first monitoring image in the furnace and the position of a preset baseline, wherein the first monitoring image includes a running image of the complete strip steel, and the position of the strip steel is understood by means of the monitoring image; the position of the first left and right boundary lines of the strip steel on the furnace roller in the first monitoring image is extracted, and the position of the strip steel is reflected by the position of the first left and right boundary lines; according to the position of the first left and right boundary lines and the position of the baseline, whether the strip steel is deviated is determined, and the position of the first left and right boundary lines is compared with the position of the baseline, so as to more accurately determine whether the strip steel is deviated. The method can obtain the running image of the strip steel through a camera, and then process the image, so as to accurately determine whether the strip steel is deviated, and the image quality is not affected by temperature and vibration, so that the accuracy of the judgment is very high.

[0153] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0154] Similarly, it should be understood that in order to streamline the present disclosure and help understand one or more of the various application aspects, in the above description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed method should not be interpreted as reflecting the following intention: the claimed application requires more features than the features clearly stated in each claim. More specifically, as reflected in the claims below, the application aspects are less than all the features of the single embodiment disclosed above. Therefore, the claims following the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0155] It should be noted that the above embodiments illustrate the present application rather than limit the present application, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "one" or "an" preceding a component does not exclude the presence of multiple such components. The present application may be implemented by means of hardware including several different components and by means of appropriately programmed computers. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

Claims

1. A method for determining the deviation of strip steel in a furnace, characterized in that: The method comprises: Acquire a first monitoring image in the furnace and a position of a preset reference line, wherein the first monitoring image includes a running image of a complete steel strip; Extracting positions of first left and right boundary lines of the strip on the furnace roller in the first monitoring image; Whether the strip steel is deviated is determined according to the positions of the first left and right boundary lines and the position of the reference line.

2. The method for determining the deviation of the strip steel in the furnace according to claim 1, characterized in that: Before obtaining the first monitoring image in the furnace and the position of the preset baseline, the method further includes: Acquire a second monitoring image in the furnace when the deviation correction amount of the deviation correction roller is less than a set value; The center line between the second left and right boundary lines of the strip steel on the furnace roller in the second monitoring image is determined as the reference line.

3. The method for determining the deviation of the strip steel in the furnace according to claim 1, characterized in that: The determining whether the strip steel is deviated according to the positions of the first left and right boundary lines and the position of the reference line comprises: Calculate a first vertical distance between the first left boundary line and the baseline, and a second vertical distance between the first right boundary line and the baseline according to the positions of the first left and right boundary lines and the position of the baseline; Calculating a difference between the first distance and the second distance; If the difference is greater than or equal to a preset first threshold value and less than or equal to a preset second threshold value, it is determined that the strip steel has not deviated; If the difference is smaller than the first threshold or larger than the second threshold, it is determined that the strip is deviated.

4. The method for determining the deviation of the strip steel in the furnace according to claim 3, characterized in that: If the difference is less than the first threshold or greater than the second threshold, determining that the strip is deviating includes: If the difference is less than the first threshold, it is determined that the strip steel is deviating to the right side; If the difference is greater than the second threshold, it is determined that the steel strip is deviating to the left.

5. The method for determining the deviation of the strip steel in the furnace according to claim 3, characterized in that: The step of calculating a first vertical distance between the first left boundary line and the baseline, and a second vertical distance between the first right boundary line and the baseline according to the positions of the first left and right boundary lines and the position of the baseline, comprises: Acquire the width of the steel strip in the first monitoring image; Calculating the number of first pixels between the first left boundary line and the baseline, and the number of second pixels between the first right boundary line and the baseline according to the positions of the first left and right boundary lines and the position of the baseline; Calculating the sum of the first number of pixel points and the second number of pixel points; Multiplying the ratio of the first number of pixel points to the sum by the width to obtain a first vertical distance between the first left boundary line and the reference line; The second vertical distance between the first right boundary line and the reference line is obtained by multiplying the ratio of the second number of pixel points to the sum value by the width.

6. The method for determining the deviation of strip steel in a furnace according to claim 1, characterized in that: After determining that the strip steel is running off track, the method further includes: Determine the difference as the strip deviation amount; If the strip deviation amount is greater than a preset first deviation amount threshold, an alarm is issued.

7. The method for determining the deviation of the strip steel in the furnace according to claim 6, characterized in that: After determining the difference as the strip deviation amount, the method further comprises: If the strip deviation is greater than a preset second deviation threshold, the furnace zone operating speed is reduced or the furnace is shut down.

8. A device for determining the deviation of strip steel in a furnace, characterized in that: The device comprises: A first acquisition module, used to acquire a first monitoring image in the furnace and a position of a preset reference line, wherein the first monitoring image includes a picture of a complete steel strip; An extraction module, used for extracting the positions of first left and right boundary lines of the strip on the furnace roller in the first monitoring image; The first determination module is used to determine whether the strip steel has deviated according to the positions of the first left and right boundary lines and the position of the reference line.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method according to any one of claims 1 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 7.

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