Deviation detection method and device for coal conveying belt and electronic equipment

Abstract

The embodiment of the invention provides a deviation detection method for a coal conveying belt. The deviation detection method comprises the following steps that exposed area images of a single set of left carrier rollers and a single set of right carrier rollers on the two sides of the coal conveying belt are obtained; comparing the widths of the exposed areas of the single-group left carrier roller and the single-group right carrier roller on the two sides of the coal conveying belt; and judging whether the coal conveying belt deviates or not. According to the deviation detection method for the coal conveying belt, the deviation condition of the coal conveying belt can be automatically detected in real time in a non-contact mode. The embodiment of the invention further provides a deviation detection device of the coal conveying belt and electronic equipment.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of detection devices, and in particular to a method, device and electronic equipment for detecting deviation of a coal conveyor belt. Background Art

[0002] Thermal power generation still accounts for a large proportion of electricity production. During the power generation process of thermal power plants, coal needs to be transported to thermal power generators through coal conveyor belts, so the coal conveyor belts will affect the normal operation of thermal power plants.

[0003] Coal conveyor belt deviation is a common fault of coal conveyor belt. When the coal conveyor belt deviates, it is easy to cause coal leakage, and in severe cases, it will cause damage to machine components. Common belt deviation automatic detection equipment mainly includes contact mechanical sensors. Since the mechanical sensor needs to physically contact the belt, if there is foreign matter on the edge of the belt, it may cause misjudgment of the mechanical sensor. During the long-term operation of the belt, the edge of the belt may be worn by the mechanical sensor. In addition, if the belt shakes, the mechanical sensor may misjudge. Moreover, the mechanical sensor is installed at a high position, requiring operators to climb high for maintenance, which poses certain safety hazards. Summary of the invention

[0004] The main purpose of the embodiments of the present application is to provide a method, device and electronic equipment for detecting the deviation of a coal conveyor belt, which can automatically detect the deviation of the coal conveyor belt in real time in a non-contact manner.

[0005] To achieve the above objectives, in a first aspect, an embodiment of the present application provides a method for detecting deviation of a coal conveyor belt, comprising the following steps:

[0006] Acquire an exposed area image of a single set of left and right rollers on both sides of the coal conveyor belt;

[0007] Comparing the widths of the exposed areas of the single set of left and right idlers on both sides of the coal conveyor belt; and

[0008] Determine whether the coal conveyor belt is deviated.

[0009] Further, the determining whether the coal conveyor belt is deviated includes:

[0010] Determine whether the coal conveyor belt is deviating according to the following formula:

[0011]

[0012] Wherein, max(x, y) represents the maximum value of the width of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt, min(x, y) represents the minimum value of the width of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt, I thThe threshold for judging whether the coal conveyor belt is deviating.

[0013] Further, the comparing the widths of the exposed areas of the single set of left and right rollers on both sides of the coal conveyor belt comprises:

[0014] Compare the widths of the circumscribed rectangles of the exposed areas of the single set of left and right rollers on both sides of the coal conveyor belt.

[0015] Furthermore, before comparing the widths of the circumscribed rectangles of the exposed areas of the single group of left and right rollers on both sides of the coal conveyor belt, the method further includes:

[0016] According to the exposed area images of the single group of left and right rollers on both sides of the coal conveyor belt, the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt is obtained.

[0017] Further, the obtaining of the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt according to the exposed area image of the single group of left and right rollers on both sides of the coal conveyor belt comprises:

[0018] The exposed area images of the single group of left and right rollers on both sides of the coal conveyor belt are input into the image segmentation model to obtain the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt.

[0019] Further, the obtaining of the exposed area images of a single group of left and right rollers on both sides of the coal conveyor belt includes:

[0020] Acquire a single frame image from the captured video of the coal conveyor belt; and

[0021] From the single frame image, images of the exposed areas of a single group of left rollers and right rollers on both sides of the coal conveyor belt are respectively captured.

[0022] Further, after determining whether the coal conveyor belt is deviated, the method further includes:

[0023] If so, an alarm signal of coal conveyor belt deviation is issued.

[0024] In a second aspect, an embodiment of the present application provides a device for detecting deviation of a coal conveyor belt, comprising:

[0025] An image acquisition module, used to acquire images of exposed areas of a single group of left and right rollers on both sides of the coal conveyor belt;

[0026] A width comparison module, used to compare the widths of the exposed areas of a single set of left and right idlers on both sides of the coal conveyor belt; and

[0027] The deviation judgment module is used to judge whether the coal conveyor belt is deviated.

[0028] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to implement the deviation detection method according to any one of the above items when executing the program.

[0029] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium,

[0030] The computer-readable storage medium stores a computer program, and the computer program is used to implement the deviation detection method according to any one of the above items.

[0031] Compared with the existing detection method using mechanical sensors, the deviation detection method for coal conveyor belt provided in the embodiment of the present application obtains the exposed area images of a single group of left rollers and right rollers on both sides of the coal conveyor belt, and compares the widths of the exposed areas of the single group of left rollers and right rollers on both sides of the coal conveyor belt, thereby determining whether the coal conveyor belt has deviated. Therefore, the deviation detection method for coal conveyor belt provided in the embodiment of the present application adopts a non-contact visual method to automatically monitor the deviation of the coal conveyor belt in real time, avoiding the problems of traditional contact mechanical sensors, and is simple to maintain. It will not cause adverse effects on the coal conveyor belt, such as causing the belt to shake or wear the belt, and will not be affected by foreign objects on the edge of the coal conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of a flow chart of a method for detecting deviation of a coal conveyor belt provided in an embodiment of the present application;

[0034] Figure 2a and Figure 2b A schematic diagram of an application scenario of a method for detecting deviation of a coal conveyor belt provided in an embodiment of the present application;

[0035] Figure 3 A structural block diagram of a device for detecting deviation of a coal conveyor belt provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0037] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] Figure 1 1 is a flow chart of a method for detecting deviation of a coal conveyor belt according to an embodiment of the present application. Figure 1 As shown, the embodiment of the present application provides a method for detecting deviation of a coal conveyor belt, comprising the following steps:

[0043] S101: Acquire an exposed area image of a single group of left and right rollers on both sides of the coal conveyor belt;

[0044] S102: comparing the widths of the exposed areas of the single set of left and right rollers on both sides of the coal conveyor belt; and

[0045] S103: Determine whether the coal conveyor belt is deviated.

[0046] Specifically, a camera is usually installed directly above the coal conveyor belt to monitor the operation of the coal conveyor belt. The picture or image captured by the camera will contain many roller groups. Since the coal conveyor belt is heavy, the inside of the coal conveyor belt is woven with a large number of steel wires, such as Figure 2b As shown in the figure, when the coal conveyor belt deviates at a certain position, the deviation of the coal conveyor belt will be reflected in multiple roller groups near the position. Therefore, in one camera, it is only necessary to detect whether one roller group has belt deviation. This solution can reduce the complexity of the algorithm and improve the reliability of the algorithm.

[0047] Compared with the existing detection method using mechanical sensors, the deviation detection method for coal conveyor belt provided in the embodiment of the present application obtains the exposed area images of a single group of left rollers and right rollers on both sides of the coal conveyor belt, and compares the widths of the exposed areas of the single group of left rollers and right rollers on both sides of the coal conveyor belt, thereby determining whether the coal conveyor belt has deviated. Therefore, the deviation detection method for coal conveyor belt provided in the embodiment of the present application adopts a non-contact visual method to automatically monitor the deviation of the coal conveyor belt in real time, avoiding the problems of traditional contact mechanical sensors, and is simple to maintain. It will not cause adverse effects on the coal conveyor belt, such as causing the belt to shake or wear the belt, and will not be affected by foreign objects on the edge of the coal conveyor belt.

[0048] Further, refer to Figure 2a and Figure 2b In some embodiments of the present application, the determining whether the coal conveyor belt is deviated includes:

[0049] Determine whether the coal conveyor belt is deviating according to the following formula:

[0050]

[0051] Wherein, max(x, y) represents the maximum value of the width of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt, min(x, y) represents the minimum value of the width of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt, I th The threshold for judging whether the coal conveyor belt is deviating.

[0052] The method for detecting deviation of a coal conveyor belt provided in the embodiment of the present application can accurately determine whether the coal conveyor belt has deviated, thereby being able to automatically monitor the deviation of the coal conveyor belt in real time.

[0053] Further, in some embodiments of the present application, the comparing the widths of the exposed areas of the single group of left and right rollers on both sides of the coal conveyor belt includes:

[0054] Compare the widths of the circumscribed rectangles of the exposed areas of the single set of left and right rollers on both sides of the coal conveyor belt.

[0055] Specifically, in image processing, the bounding rectangle is an important concept, which involves how to effectively extract and process specific areas in an image. The bounding rectangle can be divided into the minimum bounding rectangle and the minimum bounding convex hull, where the minimum bounding rectangle usually refers to the minimum area rotation rectangle around a point set or an object in an image.

[0056] The exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt is usually irregular in shape in the captured image, and the circumscribed rectangle of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt refers to the minimum area rotated rectangle around the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt. Therefore, the comparison of the width of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt can be achieved by comparing the width of the circumscribed rectangle of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt, thereby further reducing the complexity of the algorithm and reducing the amount of calculation.

[0057] Furthermore, in some embodiments of the present application, before comparing the widths of the circumscribed rectangles of the exposed areas of the single group of left and right rollers on both sides of the coal conveyor belt, the method further includes:

[0058] According to the exposed area images of the single group of left and right rollers on both sides of the coal conveyor belt, the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt is obtained.

[0059] That is, before comparing the widths of the circumscribed rectangles of the exposed areas of the single group of left and right rollers on both sides of the coal conveyor belt, it is necessary to perform object extraction on the images of the exposed areas of the single group of left and right rollers on both sides of the coal conveyor belt to obtain the circumscribed rectangles of the exposed areas of the single group of left and right rollers on both sides of the coal conveyor belt, thereby facilitating subsequent judgment operations.

[0060] Further, in some embodiments of the present application, the step of obtaining the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt according to the exposed area image of the single group of left and right rollers on both sides of the coal conveyor belt comprises:

[0061] The exposed area images of the single group of left and right rollers on both sides of the coal conveyor belt are input into the image segmentation model to obtain the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt.

[0062] Specifically, the image segmentation model in image processing plays an important role in the field of computer vision. Image segmentation is the process of dividing an image into different regions or objects, which provides a basis for many applications, such as target detection, image recognition, etc. Therefore, by inputting the exposed area image of the single group of left and right rollers on both sides of the coal conveyor belt into the image segmentation model, the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt can be quickly obtained, thereby facilitating subsequent determination operations.

[0063] Further, in some embodiments of the present application, the step of acquiring the exposed area image of a single group of left rollers and right rollers on both sides of the coal conveyor belt includes:

[0064] Acquire a single frame image from the captured video of the coal conveyor belt; and

[0065] From the single frame image, images of the exposed areas of a single group of left rollers and right rollers on both sides of the coal conveyor belt are respectively captured.

[0066] Specifically, the camera above the coal conveyor belt usually continuously films the operation of the coal conveyor belt. If the camera films the coal conveyor belt in the form of video, when it is necessary to obtain the exposed area image of a single group of left rollers and right rollers on both sides of the coal conveyor belt, it is first necessary to obtain a single-frame image from the video of the coal conveyor belt, and then from the single-frame image, respectively capture the exposed area images of the single group of left rollers and right rollers on both sides of the coal conveyor belt, thereby providing a basis for subsequent judgment operations.

[0067] Furthermore, in some embodiments of the present application, after determining whether the coal conveyor belt is deviated, the method further includes:

[0068] If so, an alarm signal of coal conveyor belt deviation is issued.

[0069] That is, if it is determined that the coal conveyor belt is deviating, an alarm signal will be immediately given and the deviation position of the coal conveyor belt will be marked on the display screen for maintenance personnel to deal with in time, thereby avoiding adverse effects on production operations.

[0070] Figure 3 2 is a structural block diagram of a deviation detection device 200 for a coal conveyor belt according to an embodiment of the present application. Figure 3 As shown, the deviation detection device 200 for a coal conveyor belt in an embodiment of the present application includes: an image acquisition module 210, a width comparison module 220 and a deviation judgment module 230, wherein:

[0071] An image acquisition module 210 is used to acquire an exposed area image of a single group of left and right rollers on both sides of the coal conveyor belt;

[0072] A width comparison module 220, for comparing the widths of the exposed areas of a single set of left and right idlers on both sides of the coal conveyor belt; and

[0073] The deviation judging module 230 is used to judge whether the coal conveyor belt is deviated.

[0074] Compared with the existing detection devices using mechanical sensors, the deviation detection device for the coal conveyor belt provided in the embodiment of the present application determines whether the coal conveyor belt has deviated by obtaining images of the exposed areas of a single group of left rollers and right rollers on both sides of the coal conveyor belt and comparing the widths of the exposed areas of the single group of left rollers and right rollers on both sides of the coal conveyor belt. Therefore, the deviation detection device for the coal conveyor belt provided in the embodiment of the present application adopts a non-contact visual method to automatically monitor the deviation of the coal conveyor belt in real time, avoiding the problems of traditional contact mechanical sensors, and is simple to maintain. It will not cause adverse effects on the coal conveyor belt, such as causing the belt to shake or wear the belt, and will not be affected by foreign objects on the edge of the coal conveyor belt.

[0075] It should be noted that the specific implementation method of the abnormal noise locating device for belt conveyor rollers in the embodiment of the present application is similar to the specific implementation method of the video generation method in the embodiment of the present application. Please refer to the description of the method part for details and will not be repeated here.

[0076] Figure 4 Schematic diagram of the structure of an electronic device 300 according to an embodiment of the present application.

[0077] like Figure 4 As shown, the electronic device 300 includes a central processing unit (CPU) 301, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 302 or a program loaded from the storage part 302 to a random access memory (RAM) 303. In the RAM 303, various programs and data required for the operation of the electronic device 300 are also stored. The CPU 301, the ROM 302, and the RAM 303 are connected to each other via a bus 304. An input / output (I / O) interface 305 is also connected to the bus 304.

[0078] The following components are connected to the I / O interface 305: an input section 306 including a keyboard, a mouse, etc.; an output section 307 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 308 including a hard disk, etc.; and a communication section 309 including a network interface card such as a LAN card, a modem, etc. The communication section 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to the I / O interface 305 as needed. A removable medium 311, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 310 as needed, so that a computer program read therefrom is installed into the storage section 308 as needed.

[0079] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a machine-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication section 309, and / or installed from a removable medium 311. When the computer program is executed by a central processing unit (CPU) 301, the above-mentioned functions defined in the electronic device of the present application are executed.

[0080] It should be noted that the computer-readable medium shown in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electronic device, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0081] In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction-executing electronic device, apparatus, or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in combination with an instruction-executing electronic device, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0082] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the processing receiving device, method and computer program product according to various embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the aforementioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of the boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based electronic device that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0083] The units or modules involved in the embodiments described in the present application may be implemented by software or hardware. The units or modules described may also be set in a processor, and the processor is used to implement a method for detecting deviation of a coal conveyor belt when executing the program, including the following steps:

[0084] Acquire an exposed area image of a single set of left and right rollers on both sides of the coal conveyor belt;

[0085] Comparing the widths of the exposed areas of the single set of left and right idlers on both sides of the coal conveyor belt; and

[0086] Determine whether the coal conveyor belt is deviated.

[0087] As another aspect, the present application further provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiment; or may exist independently and not be assembled into the electronic device. The above computer-readable storage medium stores one or more programs, and when the above programs are used by one or more processors to execute the method for detecting deviation of a coal conveyor belt described in the present application, the method includes the following steps:

[0088] Acquire an exposed area image of a single set of left and right rollers on both sides of the coal conveyor belt;

[0089] Comparing the widths of the exposed areas of the single set of left and right idlers on both sides of the coal conveyor belt; and

[0090] Determine whether the coal conveyor belt is deviated.

[0091] As another aspect, the present application further provides a computer program product, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer program product stores one or more programs, and when the above programs are used by one or more processors to execute the method for detecting deviation of a coal conveyor belt described in the present application, the method includes the following steps:

[0092] Acquire an exposed area image of a single set of left and right rollers on both sides of the coal conveyor belt;

[0093] Comparing the widths of the exposed areas of the single set of left and right idlers on both sides of the coal conveyor belt; and

[0094] Determine whether the coal conveyor belt is deviated.

[0095] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for detecting deviation of a coal conveyor belt, characterized in that: The following steps are involved: Acquire an exposed area image of a single set of left and right rollers on both sides of the coal conveyor belt; Comparing the widths of the exposed areas of the single set of left and right rollers on both sides of the coal conveyor belt; and Determine whether the coal conveyor belt is deviated.

2. The method according to claim 1, characterized in that The step of judging whether the coal conveyor belt is deviated comprises: Determine whether the coal conveyor belt is deviating according to the following formula: Wherein, max(x, y) represents the maximum value of the width of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt, min(x, y) represents the minimum value of the width of the exposed area of ​​the single set of left and right rollers on both sides of the coal conveyor belt, I th The threshold for judging whether the coal conveyor belt is deviating.

3. The method according to claim 1 or 2, characterized in that The comparing the widths of the exposed areas of the single set of left and right rollers on both sides of the coal conveyor belt comprises: Compare the widths of the circumscribed rectangles of the exposed areas of the single set of left and right rollers on both sides of the coal conveyor belt.

4. The method according to claim 3, characterized in that Before comparing the widths of the circumscribed rectangles of the exposed areas of the single set of left and right rollers on both sides of the coal conveyor belt, the method further includes: According to the exposed area images of the single group of left and right rollers on both sides of the coal conveyor belt, the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt is obtained.

5. The method according to claim 4, characterized in that The step of obtaining the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt according to the exposed area image of the single group of left and right rollers on both sides of the coal conveyor belt comprises: The exposed area images of the single group of left and right rollers on both sides of the coal conveyor belt are input into the image segmentation model to obtain the circumscribed rectangle of the exposed area of ​​the single group of left and right rollers on both sides of the coal conveyor belt.

6. The method according to claim 1, characterized in that The step of obtaining the exposed area image of a single group of left and right rollers on both sides of the coal conveyor belt comprises: Acquire a single frame image from the captured video of the coal conveyor belt; and From the single frame image, images of the exposed areas of a single group of left rollers and right rollers on both sides of the coal conveyor belt are respectively captured.

7. The method according to claim 1, characterized in that After determining whether the coal conveyor belt is deviated, the method further includes: If so, an alarm signal of coal conveyor belt deviation is issued.

8. A device for detecting deviation of a coal conveyor belt, characterized in that: include: An image acquisition module, used to acquire images of exposed areas of a single group of left and right rollers on both sides of the coal conveyor belt; A width comparison module, used for comparing the widths of the exposed areas of a single set of left and right idlers on both sides of the coal conveyor belt; and The deviation judgment module is used to judge whether the coal conveyor belt is deviated.

9. An electronic device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor is used to implement the deviation detection method according to any one of claims 1 to 7 when executing the program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is used to implement the deviation detection method according to any one of claims 1-7.

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