Conveying belt deviation analysis method and device based on double criteria of material state and position

Abstract

The invention discloses a conveying belt deviation analysis method and device based on material state and position double criteria, and belongs to the technical field of industrial conveying equipment monitoring technologies. The method comprises the steps that based on a visual monitoring system, material information of conveying belt operation and the distance between the edge of a belt and the end of a side carrier roller are obtained; judging whether the belt is in a load working condition or not based on the material information; if the belt is in the load working condition, the distance between the material contour edge and the belt edge is obtained based on a visual monitoring system, and the deviation level is determined based on the distance between the belt edge and the end of the side carrier roller and the distance between the material contour edge and the belt edge. According to the invention, extension is carried out on the basis of a visual monitoring system, and consistency of belt line visual monitoring and belt line business management requirements is realized. By determining the deviation level, the harmless deviation can be screened out, so that the alarm efficiency is greatly improved, and the alarm fatigue caused by excessive invalid alarms due to the harmless deviation of equipment management personnel is avoided.

Description

Technical Field

[0001] This application relates to the field of industrial conveying equipment monitoring technology, and in particular to a method and device for analyzing conveyor belt misalignment based on both material state and position criteria. Background Technology

[0002] In related technologies, belt misalignment detection mainly relies on image recognition technology, which determines misalignment by analyzing the coverage relationship between the belt edge and the idler roller. However, it has two major drawbacks:

[0003] (1) Business logic deviation: When the material is running, the instantaneous deviation caused by the shift of the center of gravity of the material is a normal working condition. Existing technology cannot distinguish between this kind of harmless deviation and dangerous deviation.

[0004] (2) Alarm overload: The large proportion of invalid alarms leads to alarm indifference among equipment managers, which seriously affects the reliability of the system. Summary of the Invention

[0005] The purpose of this application is to provide a method and device for analyzing conveyor belt misalignment based on both material state and location criteria, in order to solve the problem in related technologies that belt misalignment detection cannot distinguish between harmless misalignment and harmful misalignment, resulting in a large proportion of invalid alarms.

[0006] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0007] The first aspect of this application provides a method for analyzing conveyor belt misalignment based on both material state and position criteria, including:

[0008] Based on the visual monitoring system, material information of the conveyor belt and the distance between the belt edge and the end of the side idler roller are obtained;

[0009] Determine whether the belt is under load based on material information;

[0010] If the belt is under load, the distance between the material outline edge and the belt edge is obtained based on the visual monitoring system, and the belt deviation level is determined based on the distance between the belt edge and the end of the side idler roller and the distance between the material outline edge and the belt edge.

[0011] Optionally, determining the belt misalignment level based on the distance between the belt edge and the end of the side idler roller, and the distance between the material outline edge and the belt edge, includes:

[0012] Obtain the first threshold, the second threshold, the third threshold, and the fourth threshold;

[0013] In response to the distance between the belt edge and the end of the side idler roller being less than a first threshold, and the distance between the material outline edge and the belt edge being less than a second threshold, the misalignment level is determined to be the first level of misalignment.

[0014] In response to the distance between the belt edge and the end of the side idler roller being greater than a first threshold and less than a third threshold, and the distance between the material outline edge and the belt edge being greater than a second threshold and less than a fourth threshold, the misalignment level is determined to be the second level of misalignment.

[0015] Optionally, when determining whether the belt is under load based on material information, the method further includes:

[0016] If the belt is under no-load conditions, the belt misalignment level is determined based on the distance between the belt edge and the end of the side idler roller.

[0017] Optionally, if the belt is under no-load conditions, the belt misalignment level is determined based on the distance between the belt edge and the end of the side idler roller, including:

[0018] Obtain the fifth threshold;

[0019] Timing starts when the distance between the belt edge and the end of the side idler roller is less than the fifth threshold, and stops when the distance between the belt edge and the end of the side idler roller is not less than the fifth threshold. When the timing duration reaches a preset time threshold, the deviation level is determined to be the third level deviation.

[0020] Optionally, the method further includes:

[0021] After determining the deviation level, an alarm message is triggered.

[0022] Optionally, after determining the deviation level, triggering an alarm message includes:

[0023] If the deviation level is determined to be Level 1 deviation, a first alarm message is sent to the user terminal to remind the user to take action;

[0024] If the deviation level is determined to be Level 2 deviation, a second alarm message is sent to the user terminal to remind the user to pay attention;

[0025] If the deviation level is determined to be Level 3, a third alarm message is sent to the user terminal to remind the user to perform equipment maintenance.

[0026] A second aspect of this application provides a conveyor belt misalignment analysis device based on both material state and position criteria, comprising:

[0027] The acquisition module is used to acquire material information of the conveyor belt and the distance between the belt edge and the end of the side idler roller based on the vision monitoring system.

[0028] The judgment module is used to determine whether the belt is under load based on material information;

[0029] The analysis module is used to obtain the distance between the material outline edge and the belt edge based on the visual monitoring system when the belt is under load, and to determine the misalignment level based on the distance between the belt edge and the end of the side idler roller and the distance between the material outline edge and the belt edge.

[0030] A third aspect of this application provides an electronic device, including a memory and a processor;

[0031] The processor reads the executable program code stored in the memory to run the program corresponding to the executable program code, so as to implement the conveyor belt misalignment analysis method based on the dual criteria of material state and position as described in the first aspect.

[0032] A third aspect of this application provides a computer-readable storage medium having a computer program stored thereon, characterized in that the program is executed by a processor to implement the conveyor belt misalignment analysis method based on dual criteria of material state and position as described in the first aspect.

[0033] Compared with existing technologies, the beneficial effects achieved by this application are as follows: This application acquires material information of the conveyor belt and the distance between the belt edge and the end of the side idler roller based on a visual monitoring system; it determines whether the belt is under load based on the material information; if the belt is under load, it acquires the distance between the material outline edge and the belt edge based on the visual monitoring system, and determines the misalignment level based on the distance between the belt edge and the end of the side idler roller and the distance between the material outline edge and the belt edge. This application extends the visual monitoring system to achieve consistency between the visual monitoring of the conveyor belt and the business management needs of the conveyor belt. By determining the misalignment level, harmless misalignments can be screened out, thereby significantly improving the effectiveness of alarms and avoiding alarm fatigue caused by excessive invalid alarms due to harmless misalignments for equipment management personnel. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a flowchart illustrating a conveyor belt misalignment analysis method based on dual criteria of material state and position, according to some embodiments provided in this application.

[0036] Figure 2 This is a schematic diagram of the conveyor belt misalignment analysis device based on dual criteria of material state and position, according to some embodiments provided in this application. Detailed Implementation

[0037] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure / application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0038] The following description, with reference to the accompanying drawings, describes a method and apparatus for analyzing conveyor belt misalignment based on dual criteria of material state and position, according to embodiments of this application.

[0039] Figure 1 This is a flowchart illustrating a conveyor belt misalignment analysis method based on both material state and position criteria, according to an embodiment of this application.

[0040] like Figure 1 As shown, the conveyor belt misalignment analysis method based on both material state and position criteria includes the following steps:

[0041] In step S101, based on the visual monitoring system, material information of the conveyor belt and the distance between the belt edge and the end of the side idler are obtained.

[0042] In bulk material conveyor belt systems, visual monitoring systems are used to monitor the belt in real time. These systems can collect and monitor information about the conveying of materials within the monitored area, such as material information and the distance between the belt edge and the end of the side idler rollers.

[0043] In step S102, it is determined whether the belt is under load based on the material information.

[0044] In some embodiments, the material information includes material edge information. By detecting the material edge information, it is determined whether the belt is under load. Specifically, when material edge information is detected, it is determined that the belt is under load.

[0045] In step S103, if the belt is under load, the distance between the material outline edge and the belt edge is obtained based on the visual monitoring system, and the belt deviation level is determined based on the distance between the belt edge and the end of the side idler roller and the distance between the material outline edge and the belt edge.

[0046] In one embodiment of this application, determining the misalignment level based on the distance between the belt edge and the end of the side idler roller, and the distance between the material outline edge and the belt edge includes: obtaining a first threshold, a second threshold, a third threshold, and a fourth threshold; determining the misalignment level as a first-level misalignment in response to the distance between the belt edge and the end of the side idler roller being less than the first threshold and the distance between the material outline edge and the belt edge being less than the second threshold; and determining the misalignment level as a second-level misalignment in response to the distance between the belt edge and the end of the side idler roller being greater than the first threshold and less than the third threshold, and the distance between the material outline edge and the belt edge being greater than the second threshold and less than the fourth threshold.

[0047] In one embodiment of this application, the first threshold, second threshold, third threshold, and fourth threshold can be adjusted according to actual working conditions and specific material characteristics. The distances between the belt edge and the end of the side idler roller, and the distances between the material outline edge and the belt edge, obtained by the visual monitoring system, can be: the shortest distances between the belt edge and the end of the side idler roller, and the shortest distances between the material outline edge and the belt edge, obtained by the visual monitoring system within the monitored area. Alternatively, they can be the shortest distances between the belt edge and the end of the side idler roller, and the shortest distances between the material outline edge and the belt edge, obtained by the visual monitoring system within a designated identification area set within the monitored area.

[0048] During material conveying via belt, momentary belt misalignment due to material center of gravity shift is normal. Relying solely on the distance between the belt edge and the side idler end, or the distance between the material outline edge and the belt edge, may lead to incorrect judgments. This embodiment employs dual judgment, significantly reducing the proportion of invalid alarms.

[0049] In one embodiment of this application, when determining whether the belt is under load based on material information, the method further includes: if the belt is under non-load conditions, determining the misalignment level based on the distance between the belt edge and the end of the side idler roller. This includes: obtaining a fifth threshold; starting a timer in response to the distance between the belt edge and the end of the side idler roller being less than the fifth threshold; stopping the timer in response to the distance between the belt edge and the end of the side idler roller being not less than the fifth threshold; and determining the misalignment level as level three misalignment when the timer duration reaches a preset time threshold.

[0050] The belt is in an unloaded condition, i.e., unloaded. Under this condition, there is no material carrying on the belt. If the distance between the edge of the belt and the end of the side idler roller is too small at this time, and this state continues for a certain period of time, it can be determined that the belt is misaligned, and the misalignment level is determined to be level three misalignment.

[0051] In one embodiment of this application, an alarm message is triggered after the deviation level is determined.

[0052] In one embodiment of this application, if the deviation level is determined to be Level 1, a first alarm message is sent to the user terminal to remind the user to handle the issue. If the deviation level is determined to be Level 2, a second alarm message is sent to the user terminal to remind the user to pay attention. If the deviation level is determined to be Level 3, a third alarm message is sent to the user terminal to remind the user to perform equipment maintenance.

[0053] To achieve the above embodiments, this application also provides a conveyor belt misalignment analysis device based on dual criteria of material state and position.

[0054] Figure 2 This is a schematic diagram of a conveyor belt misalignment analysis device based on both material state and position criteria provided in this application.

[0055] like Figure 2 As shown, the conveyor belt misalignment analysis device based on both material state and position criteria includes:

[0056] The acquisition module 201 is used to acquire material information of the conveyor belt and the distance between the edge of the belt and the end of the side idler roller based on the foreign object monitoring system.

[0057] The judgment module 202 is used to determine whether the belt is under load based on the material information;

[0058] Analysis module 203 is used to obtain the distance between the material outline edge and the belt edge based on the foreign object monitoring system when the belt is under load, and to determine the misalignment level based on the distance between the belt edge and the end of the side idler roller and the distance between the material outline edge and the belt edge.

[0059] This application also provides an electronic device, which includes a memory and a processor;

[0060] The processor reads the executable program code stored in the memory to run the program corresponding to the executable program code, so as to implement the conveyor belt misalignment analysis method based on the dual criteria of material state and position provided in the above embodiment.

[0061] This application also provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the conveyor belt misalignment analysis method based on dual criteria of material state and position provided in the above embodiments.

[0062] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0063] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0064] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0065] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0066] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A method for analyzing deviation of a conveying belt based on a dual criterion of material state and position, characterized in that, The method comprises: acquiring, based on a visual monitoring system, material information of a running conveying belt and a distance between a belt edge and an end of a side idler; judging, based on the material information, whether the belt is in a loaded working condition; if the belt is in the loaded working condition, acquiring, based on the visual monitoring system, a distance between a material profile edge and the belt edge, and determining a deviation level based on the distance between the belt edge and the end of the side idler and the distance between the material profile edge and the belt edge.

2. The material state and position double criterion-based conveying belt deviation analysis method according to claim 1, characterized in that, The determination of the deviation level based on the distance between the belt edge and the end of the side idler and the distance between the material profile edge and the belt edge comprises: acquiring a first threshold value, a second threshold value, a third threshold value and a fourth threshold value; in response to the distance between the belt edge and the end of the side idler being less than the first threshold value and the distance between the material profile edge and the belt edge being less than the second threshold value, determining that the deviation level is a first level of deviation; in response to the distance between the belt edge and the end of the side idler being greater than the first threshold value and less than the third threshold value and the distance between the material profile edge and the belt edge being greater than the second threshold value and less than the fourth threshold value, determining that the deviation level is a second level of deviation.

3. The material state and position double criterion-based conveying belt deviation analysis method according to claim 2, characterized in that, When the judgment of whether the belt is in the loaded working condition based on the material information is performed, the method further comprises: if the belt is in an unloaded working condition, determining a deviation level based on the distance between the belt edge and the end of the side idler.

4. The material state and position double criterion-based conveying belt deviation analysis method according to claim 3, characterized in that, The determination of the deviation level based on the distance between the belt edge and the end of the side idler when the belt is in the unloaded working condition comprises: acquiring a fifth threshold value; in response to the distance between the belt edge and the end of the side idler being less than the fifth threshold value, starting timing, in response to the distance between the belt edge and the end of the side idler not being less than the fifth threshold value, stopping timing, and when a duration of the timing reaches a preset time threshold value, determining that the deviation level is a third level of deviation.

5. The material state and position double criterion based conveying belt deviation analysis method according to claim 4, characterized in that, The method further comprises: after the determination of the deviation level, triggering an alarm information.

6. The material state and position double criterion-based conveying belt deviation analysis method according to claim 5, characterized in that, The triggering of the alarm information after the determination of the deviation level comprises: when the deviation level is determined to be the first level of deviation, sending a first alarm information to a user terminal to remind the user to handle; when the deviation level is determined to be the second level of deviation, sending a second alarm information to the user terminal to remind the user to pay attention; when the deviation level is determined to be the third level of deviation, sending a third alarm information to the user terminal to remind the user to maintain the equipment.

7. An intelligent analysis device for deviation of a conveying belt based on a double criterion of material state and position, comprising: an acquisition module configured to acquire, based on a visual monitoring system, material information of a running conveying belt and a distance between a belt edge and an end of a side idler; a judgment module configured to judge, based on the material information, whether the belt is in a loaded working condition; an analysis module configured to, in a case where the belt is in the loaded working condition, acquire, based on the visual monitoring system, a distance between a material profile edge and the belt edge, and determine a deviation level based on the distance between the belt edge and the end of the side idler and the distance between the material profile edge and the belt edge.

8. An electronic device, comprising: comprising a memory and a processor; The processor runs a program corresponding to executable program code stored in the memory by reading the executable program code, to implement the material state and position double-criterion-based conveying belt deviation analysis method of any one of claims 1-6.

9. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the material state and position double-criterion-based conveying belt deviation analysis method of any one of claims 1-6.

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