Method, device, electronic device and storage medium for determining abnormal operation of discharge cabinet

Abstract

The present invention discloses a method, device, electronic device and storage medium for determining abnormal operation of a discharge cabinet. The method comprises: obtaining at least one work amount corresponding to a motor in a current operation cycle; wherein the current operation cycle corresponds to the duration of the change from a first state to a second state of the discharge cabinet; the first state is a full cabinet state, and the second state is an empty cabinet state; for each work amount, based on the current work amount, the previous work amount, the conveyor belt movement distance and the discharge quality corresponding to the current work amount, determining the abnormal value corresponding to the current work amount when the discharge cabinet is working; based on each abnormal value, a preset abnormal threshold value and a historical abnormal frequency, determining whether to give an abnormal prompt to the discharge cabinet. The method solves the problem in the prior art of low efficiency and poor accuracy of abnormal monitoring due to manual regular inspection of the operation status of the discharge cabinet, thereby improving the accuracy, timeliness and convenience of abnormal monitoring, and achieving the effect of ensuring the normal operation of the discharge cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of the tobacco industry, and in particular to a method, device, electronic device and storage medium for determining abnormal operation of a discharge cabinet. Background Art

[0002] In the tobacco industry, tobacco storage cabinets are widely used as an important equipment. They can spread tobacco materials more evenly in the storage cabinet through the reciprocating motion of the cloth belt, and play a role in mellowing raw materials, balancing moisture, and regulating upstream and downstream production in the tobacco production process.

[0003] After prolonged operation, storage cabinets are prone to minor anomalies such as insufficient lubrication, transmission equipment malfunctions, and decreased motor efficiency. These anomalies are difficult for staff to detect immediately, often requiring more obvious operational anomalies to become apparent. Over time, these anomalies can easily lead to serious equipment failures, severely impacting the normal operation of the production line. Summary of the Invention

[0004] The present invention provides a method, device, electronic device and storage medium for determining abnormal operation of a discharge cabinet, so as to improve the accuracy, timeliness and convenience of abnormality monitoring and ensure the normal operation of the discharge cabinet.

[0005] According to one aspect of the present invention, a method for determining abnormal operation of a discharge cabinet is provided, which is applied to the discharge cabinet. A conveyor belt is provided at the bottom of the discharge cabinet, and the conveyor belt is driven by a motor corresponding to the discharge cabinet, and the motor is provided with a motor shaft. The method includes:

[0006] Obtain at least one amount of work corresponding to the motor in a current operating cycle; wherein the current operating cycle corresponds to a duration of time for the discharge cabinet to change from a first state to a second state; the first state is a full cabinet state, and the second state is an empty cabinet state;

[0007] For each work amount, based on the current work amount, the previous work amount, the conveyor belt movement distance corresponding to the current work amount, and the discharge quality, determine the abnormal value corresponding to the current work amount when the discharge cabinet is working;

[0008] Based on each abnormal value, the preset abnormal threshold and the historical abnormal frequency, it is determined whether to issue an abnormal prompt to the discharge cabinet.

[0009] According to another aspect of the present invention, a device for determining abnormal operation of a discharge cabinet is provided, which is applied to the discharge cabinet. A conveyor belt is provided at the bottom of the discharge cabinet, and the conveyor belt is driven by a motor corresponding to the discharge cabinet, and the motor is provided with a motor shaft. The device includes:

[0010] a work amount determination module, configured to obtain at least one work amount corresponding to the motor in a current operating cycle; wherein the current operating cycle corresponds to a duration of time during which the discharge cabinet changes from a first state to a second state; the first state being a full cabinet state, and the second state being an empty cabinet state;

[0011] an abnormal value determination module for determining, for each work amount, an abnormal value corresponding to the current work amount when the discharge cabinet is operating based on the current work amount, the previous work amount, the conveyor belt movement distance corresponding to the current work amount, and the discharge quality;

[0012] The abnormality prompt module is used to determine whether to issue an abnormality prompt to the discharge cabinet based on each abnormal value, a preset abnormality threshold and a historical abnormality frequency.

[0013] According to another aspect of the present invention, an electronic device is provided, comprising:

[0014] at least one processor; and

[0015] a memory communicatively connected to the at least one processor; wherein,

[0016] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for determining abnormal operation of the discharge cabinet described in any embodiment of the present invention.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining abnormal operation of a discharge cabinet as described in any embodiment of the present invention when executed.

[0018] The technical solution of the embodiment of the present invention obtains at least one work amount corresponding to the motor in the current operating cycle; wherein the current operating cycle corresponds to the change time of the discharge cabinet from the first state to the second state; the first state is the full cabinet state, and the second state is the empty cabinet state; for each work amount, based on the current work amount, the previous work amount, the conveyor belt moving distance and the discharge quality corresponding to the current work amount, the abnormal value corresponding to the current work amount when the discharge cabinet is working is determined; based on each abnormal value, the preset abnormal threshold and the historical abnormal frequency, it is determined whether to give an abnormal prompt to the discharge cabinet, which solves the problem of low efficiency and poor accuracy of abnormal monitoring based on manual regular inspection of the discharge cabinet operation in the prior art, and realizes the acquisition of the amount of work done by the motor in the current operating cycle, and then calculates the abnormal value based on each work amount, the conveyor belt moving distance and the discharge quality. By monitoring the abnormal value in real time, it is determined whether the discharge cabinet has an abnormality, thereby improving the timeliness, accuracy and convenience of abnormal determination, and achieving the technical effect of ensuring the safe operation of the discharge cabinet.

[0019] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a flow chart of a method for determining abnormal operation of a discharge cabinet according to a first embodiment of the present invention;

[0022] Figure 2 2 is a schematic diagram of a method for determining abnormal operation of a discharge cabinet according to a second embodiment of the present invention;

[0023] Figure 3 2 is a schematic diagram of a structure of a device for determining abnormal operation of a discharge cabinet according to a third embodiment of the present invention;

[0024] Figure 4 It is a structural diagram of an electronic device for implementing the method for determining abnormal operation of a discharge cabinet according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] Example 1

[0028] Figure 1 This is a flow chart of a method for determining abnormal operation of a discharge cabinet according to a first embodiment of the present invention. This embodiment is applicable to monitoring the operating status of a discharge cabinet. The method can be executed by a device for determining abnormal operation of a discharge cabinet. The device for determining abnormal operation of a discharge cabinet can be implemented in the form of hardware and / or software. The device for determining abnormal operation of a discharge cabinet can be applied to a discharge cabinet. A conveyor belt is provided at the bottom of the discharge cabinet. The conveyor belt is driven by a motor corresponding to the discharge cabinet. A motor shaft is provided in the motor. Figure 1 As shown, the method includes:

[0029] S110: Obtain at least one work amount corresponding to the motor in the current operation cycle.

[0030] Among them, the current operating cycle corresponds to the duration of the change from the first state to the second state of the discharge cabinet. The first state is the full cabinet state, and the second state is the empty cabinet state. The discharge cabinet can be a reciprocating feeding storage cabinet, which can store tobacco materials or other materials. A conveyor belt is provided at the bottom of the discharge cabinet. In the actual discharge scenario, the controller can be used to drive and control the working frequency of the inverter output motor, and then the motor shaft in the inverter-driven motor rotates to drive the conveyor belt at the bottom of the discharge cabinet forward. During the advancement of the conveyor belt, the material in the discharge cabinet can be laid on the conveyor belt for discharge. The full cabinet state can represent the material state of the discharge cabinet at the end of this loading. Correspondingly, the empty cabinet state can represent the state after the end of this loading, when the material in the discharge cabinet is used up.

[0031] In practical applications, after the discharge bin is loaded, a motor can be used to drive the conveyor belt at the bottom of the discharge bin forward. At this point, the discharge bin begins to change from a full state, i.e., the amount of material in the discharge bin gradually decreases until it is empty, at which point it is considered to change to an empty state. During this transition, the operating status of the discharge bin can be monitored in real time. For example, the work performed by the motor during at least one operating period during the transition can be determined, and each amount of work performed can be used as the work performed during the current operating cycle.

[0032] In order to improve the accuracy and real-time performance of abnormal monitoring, the entire operating cycle can be divided into several equal parts before obtaining at least one work amount corresponding to the motor in the current operating cycle. When monitoring the working status of the discharge cabinet, the work done by the motor corresponding to the discharge cabinet during each equal part of the operating time can be used to analyze whether the discharge cabinet is operating abnormally.

[0033] Optionally, before obtaining at least one work amount corresponding to the motor in the current operating cycle, it also includes: dividing the contact distance between the discharge cabinet and the conveyor belt to obtain at least one moving sub-distance corresponding to the conveyor belt; determining the rotation angle of the motor shaft corresponding to each moving sub-distance, so that when obtaining at least one work amount in the current operating cycle, the work amount corresponding to each rotation angle in the current operating cycle is retrieved.

[0034] Among them, a conveyor belt is provided at the bottom of the discharge cabinet, that is, it is placed on the conveyor belt, and the contact distance can be understood as the total distance the conveyor belt advances during the current operating cycle. The length of the discharge cabinet parallel to the moving direction of the conveyor belt can be used as the contact distance. For example, the length of the discharge cabinet is 3m (meter) and the width is 1m. The length of the discharge cabinet is parallel to the moving direction of the conveyor belt, then 3m can be used as the contact distance. It should be noted that, assuming that the conveyor belt at the bottom of the discharge cabinet moves forward by 3m, all the materials in the discharge cabinet are discharged at this time. Correspondingly, when the conveyor belt moves 0.5m, the discharge cabinet will be reduced by 0.5*1m. 3 It can be assumed that after the material in the discharge cabinet is fully loaded, the material volume decreases as the conveyor belt moves. The amount of material reduced is the product of the conveyor belt's travel distance and the cabinet width (in this case, the cabinet length is the contact distance). That is, when the discharge cabinet changes from a full cabinet state to an empty cabinet state, the conveyor belt moves the contact distance.

[0035] Specifically, the contact distance between the discharge cabinet and the conveyor belt can be divided into distances to obtain at least one moving sub-distance corresponding to the conveyor belt. For example, the contact distance can be evenly divided based on a preset number of sub-distances to obtain a number of moving sub-distances. For example, if the contact distance is 20m and the preset number is 40, 40 0.5m moving sub-distances can be obtained in sequence. Each moving sub-distance can be recorded as sub-distance 1, sub-distance 2, sub-distance 3, ..., sub-distance 39, and sub-distance 40. The movement of the conveyor belt is driven by the rotation of the motor shaft in the motor. When the motor shaft rotates a certain angle, the conveyor belt will move a certain distance accordingly. After obtaining the moving sub-distance, the corresponding motor shaft rotation angle when the conveyor belt advances the moving sub-distance can be determined. For example, if the moving sub-distance is 0.5m, the corresponding motor shaft rotation angle is 3°. Therefore, each rotation angle of the motor shaft is considered to be one moving sub-distance for each rotation of the motor shaft. The amount of work performed by the motor shaft each time can be recorded, and accordingly, the amount of work corresponding to each rotation angle in the current operating cycle can be determined.

[0036] It should be noted that if at least one moving sub-distance corresponding to the conveyor belt is the same distance, then the rotation angle corresponding to each moving sub-distance is also the same. Since the material in the discharge cabinet is gradually reduced, the amount of work done by the motor shaft at each rotation angle, that is, the amount of work done may be different. Based on the analysis of the amount of work done, it can be determined whether the discharge cabinet has insufficient lubrication, or abnormal transmission equipment, or decreased motor efficiency during operation. Abnormal conditions.

[0037] It should also be noted that when obtaining the amount of work corresponding to each rotation angle of the motor shaft, the corresponding amount of work can be determined based on the instantaneous power and cumulative work time of the motor shaft. Optionally, obtaining at least one amount of work corresponding to the motor in the current operating cycle includes: obtaining at least one amount of work corresponding to the motor in the current operating cycle, including: in the process of the discharge cabinet changing from the first state to the second state, for each rotation angle, obtaining at least one to-be-used power corresponding to the current rotation angle; based on the at least one to-be-used power corresponding to the current rotation angle and the rotation time, determining the to-be-used work corresponding to the current rotation angle, so as to retrieve at least one amount of work corresponding to the current operating cycle from the recorded to-be-used work when determining whether to issue an abnormal prompt to the discharge cabinet.

[0038] The method for determining the work to be used corresponding to each rotation angle is the same, and the method for determining the work to be used corresponding to any rotation angle is used as the method for determining the work to be used corresponding to the current rotation angle for explanation.

[0039] In actual applications, during the process of the discharge cabinet changing from the first state to the second state, when the motor shaft rotates a rotation angle, it can be considered that the conveyor belt has advanced a moving distance. At this time, the rotation angle can be used as the current rotation angle, and all instantaneous powers in the process of the motor shaft rotating the current rotation angle can be obtained as the power to be used. In order to reduce resource waste, the frequency converter of the driving motor can be used to record the power generated by the motor at each moment. The way to obtain the power to be used can be: in the process of the motor shaft rotating from the initial angle to the terminal angle in the current rotation angle, based on the frequency converter recording at least one power to be used corresponding to the current rotation angle. Furthermore, based on the at least one power to be used recorded by the frequency converter in the current rotation angle and the rotation time corresponding to the current rotation angle, the work done by the motor corresponding to the current rotation angle can be determined. For example, the average power corresponding to each power to be used can be calculated, and the product of the average power and the rotation time can be used as the work value, as the work to be used. When determining whether to issue an abnormal prompt for the discharge cabinet, the controller is used to retrieve the work to be used corresponding to the current rotation angle as the work amount, so as to analyze and judge the working status of the discharge cabinet based on the work amount, realize real-time monitoring of the discharge cabinet, and improve the real-time performance of the monitoring.

[0040] S120. For each work amount, based on the current work amount, the previous work amount, the conveyor belt movement distance corresponding to the current work amount, and the discharge quality, determine the abnormal value corresponding to the current work amount when the discharge cabinet is working.

[0041] It should be noted that in the process of the discharge cabinet changing from the first state to the second state, the work corresponding to each rotation angle can be recorded in sequence. When the work corresponding to the current rotation angle is detected, the abnormal operating state of the discharge cabinet can be monitored and predicted based on the current work, the work corresponding to the previous rotation angle, the conveyor belt moving distance corresponding to the current work (if the contact distance is divided evenly, the conveyor belt moving distance is the moving sub-distance) and the mass of the material reduced by the discharge cabinet at the current rotation angle. For example, an objective function can be set, and the required data can be input into the objective function to obtain the output value as the abnormal value when the discharge cabinet is working.

[0042] It should also be noted that in order to improve the accuracy and convenience of monitoring the operating status of the discharge cabinet, a key coefficient K can be constructed by relying on the work done by the motor shaft and the energy consumed by the drive equipment. 系数 The equation can be K 系数 As abnormal parameters, the output K can be composed of the work amount corresponding to the current rotation angle and the previous rotation angle, the mass of the material reduced in the current rotation angle, the conveyor belt moving distance corresponding to the current rotation angle, and other parameters. 系数 The objective function of K can then be obtained by inputting each parameter into the objective function. 系数 , so that K 系数 The number and degree of changes can be used to determine the abnormal state of the discharge cabinet.

[0043] For example, K 系数 The derivation process can be:

[0044] First, K 传动 W 电机轴上总功 =W 底带 +W 烟草物料 , where W 电机轴上总功 =P 瞬时 ∑t 瞬时 、W 底带 =M 底带 GUL / r、W 烟草物料 =∑mGUl / r. P 瞬时 ∑t 瞬时 =(M 物料 / 2+M 底带 )LK 系数 . K 系数 =GU / rK 传动 . M 底带 is the mass of the conveyor belt. 瞬时 is the instantaneous power read on the motor shaft. 瞬时is the accumulated working time of the motor. L is the total length of the bottom belt in one operation cycle (i.e., contact distance). l is the moving distance. G is the weight constant, U is the rolling friction coefficient of the roller, r is the radius of the transmission shaft, K 传动 Chain transmission coefficient. M 物料 It is the total mass of the materials in the discharge cabinet.

[0045] Furthermore, we can get formula (2):

[0046]

[0047] K can be calculated based on formula (2): 系数 The corresponding abnormal value. Formula (2) can also be used to calculate the work done by the motor shaft of the discharge cabinet in each adjacent moving sub-distance. For example, the total work corresponding to the current rotation angle (corresponding to the current moving sub-distance) can be recorded as W i , the total work corresponding to the previous rotation angle (corresponding to the previous moving distance) is recorded as W i-1 . Further, based on formula (2), we can get M i is the mass of material reduced in the current rotation angle, and then the following formula (3) can be obtained by simplifying formula (2):

[0048] 2(W i -W i-1 ) / m=K 系数 l (3)

[0049] Accordingly, the total power of the motor at the current rotation angle, the total power of the motor at the previous current rotation angle, the mass of the material reduced at the current rotation angle, and the conveyor belt moving distance corresponding to the current rotation angle can be input into formula (3) to obtain K 系数 The corresponding outlier value.

[0050] Optionally, based on the current work done, the previous work done, the conveyor belt moving distance corresponding to the current work done, and the discharge quality, the abnormal value corresponding to the current work done when the discharge cabinet is working is determined, including: determining the discharge quality based on the current rotation angle or current moving distance corresponding to the current work done; using the current work done, the previous work done, the conveyor belt moving distance, and the discharge quality as input parameters of the objective function; and determining the abnormal value corresponding to the current work done based on the input parameters and the objective function.

[0051] The conveyor belt moving distance corresponds to the current moving sub-distance.

[0052] In this embodiment, a flow scale can be used to record the mass of the material in the discharge cabinet in real time, obtain the mass of the material in the discharge cabinet when the motor shaft is at the initial angle in the current rotation angle, and the mass of the material in the discharge cabinet when the motor shaft is at the terminal angle, and the difference between the two material masses can be used as the discharge mass. Alternatively, a flow scale can be used to determine the initial material mass corresponding to the initial moving node in the current moving sub-distance, and the terminal material mass corresponding to the terminal moving node in the current moving sub-distance, and then determine the discharge mass based on the initial material mass and the terminal material mass. For example, the difference between the initial material mass and the terminal material mass can be used as the material mass reduced by the discharge cabinet in the current moving sub-distance. Further, the objective function can be 2(W i -W i-1 ) / m=K 系数 The current work amount, the previous work amount, the conveyor belt moving distance and the output quality can be input into the objective function, and the abnormal value corresponding to the current work amount can be output.

[0053] S130. Determine whether to issue an abnormal prompt to the discharge cabinet based on each abnormal value, a preset abnormal threshold and a historical abnormal frequency.

[0054] The historical abnormal frequency is determined based on abnormal values ​​greater than a second abnormal threshold value among the current work amount and each work amount before the current work amount. The second abnormal threshold value may be a preset abnormal threshold value.

[0055] In practical applications, the abnormal state of the discharge cabinet can be predicted by monitoring the number and / or degree of changes in abnormal values. For example, when it is detected that the abnormal value corresponding to the current work done is greater than a certain abnormal threshold, the discharge cabinet is considered to be abnormal; or, the historical abnormal frequency can be updated according to the current work done. For example, if the current work done is greater than a certain abnormal threshold, the historical abnormal frequency can be processed to obtain the processed historical abnormal frequency. When the processed historical abnormal frequency is greater than the preset frequency value, the discharge cabinet can be considered to be abnormal; or, when the abnormal difference between the abnormal value of the current work done and the abnormal value of the previous work done is greater than a certain abnormal threshold, the discharge cabinet can be considered to be abnormal.

[0056] Optionally, the preset abnormal threshold includes at least three abnormal thresholds, and determining the abnormality of the discharge cabinet includes at least one of the following methods: the abnormal value of the current work volume is greater than the first abnormal threshold; the historical abnormal frequency corresponding to the current work volume is greater than the preset abnormal frequency; the abnormal difference between the abnormal value of the current work volume and the abnormal value of the previous work volume is greater than the third abnormal threshold; the volatility corresponding to the abnormal value of the current work volume is greater than the average volatility.

[0057] The average fluctuation rate is determined based on abnormal values ​​of each work amount before the current work amount.

[0058] In this embodiment, when the current work amount is obtained, the abnormal value corresponding to the current work amount can be compared with the first abnormal threshold. For example, when the abnormal value is greater than the first abnormal threshold, the discharge cabinet is considered abnormal and an abnormal prompt message is generated. Alternatively, when it is detected that the current work amount is greater than the second abnormal threshold, the historical abnormal frequency can be added by one to obtain the processed historical abnormal frequency. When the processed historical abnormal frequency is greater than the preset abnormal frequency, the discharge cabinet is considered abnormal and an abnormal prompt message is generated. The abnormal value of the current work amount can also be subtracted from the abnormal value of the previous work amount to obtain the abnormal difference. When the abnormal difference is greater than the third abnormal threshold, an abnormal prompt message is generated. The average fluctuation rate can also be calculated based on the abnormal values ​​of each work amount before the current work amount. When the fluctuation rate corresponding to the abnormal value of the current work amount is greater than the average fluctuation rate, an abnormal prompt message is generated; or, when the number of fluctuations of the abnormal value exceeds the set value in the current operating cycle, the program issues an abnormal prompt message.

[0059] The technical solution of this embodiment is to obtain at least one work amount corresponding to the motor in the current operating cycle; wherein the current operating cycle corresponds to the duration of the change of the discharge cabinet from the first state to the second state; the first state is the full cabinet state, and the second state is the empty cabinet state; for each work amount, based on the current work amount, the previous work amount, the conveyor belt moving distance and the discharge quality corresponding to the current work amount, determine the abnormal value corresponding to the current work amount when the discharge cabinet is working; based on each abnormal value, the preset abnormal threshold and the historical abnormal frequency, determine whether to give an abnormal prompt to the discharge cabinet, which solves the problem of low efficiency and poor accuracy of abnormal monitoring based on manual regular inspection of the discharge cabinet operation in the prior art, and realizes the acquisition of the amount of work done by the motor in the current operating cycle, and then calculates the abnormal value based on each work amount, the conveyor belt moving distance and the discharge quality, and determines whether the discharge cabinet has an abnormality by real-time monitoring of the abnormal value, thereby improving the timeliness, accuracy and convenience of abnormal determination, and achieving the technical effect of ensuring the safe operation of the discharge cabinet.

[0060] Example 2

[0061] As an alternative embodiment of the above embodiment, Figure 2 Schematic diagram of a method for determining abnormal operation of a discharge cabinet according to the second embodiment of the present invention.

[0062] For example, see Figure 2In the actual discharging scenario, the material can be evenly spread in the discharging cabinet, and then the controller can be used to drive and control the inverter output motor operating frequency, and then the inverter drives the motor shaft in the motor to rotate, driving the conveyor belt at the bottom of the discharging cabinet to advance. During the advancement of the conveyor belt, the material in the discharging cabinet can be spread on the conveyor belt for discharging. The PLC (Programmable Logic Controller) communicates with the inverter and the flow scale, and can read two types of data in real time: the material quality in the discharging cabinet and the instantaneous power of the motor shaft. Based on the acquired data, the PLC program can calculate and monitor an abnormal parameter that can reflect the operating status of the material cabinet in real time, and predict the abnormal operating status of the discharging cabinet through the number and degree of abnormal values ​​corresponding to the abnormal parameter. For example, relying on the fact that the work done by the motor shaft is equal to the energy consumed by the operation of the driving equipment, an equation containing the key coefficient K is constructed, and K can be 系数 As abnormal parameters, the output K can be composed of the work amount corresponding to the current rotation angle and the previous rotation angle, the mass of the material reduced in the current rotation angle, the conveyor belt moving distance corresponding to the current rotation angle, and other parameters. 系数 The objective function of K can then be obtained by inputting each parameter into the objective function. 系数 , so that K 系数 The number and degree of changes in the discharge cabinet can be used to determine the abnormal state of the discharge cabinet. It should be noted that before determining the abnormal parameters, the contact distance between the discharge cabinet and the conveyor belt can be divided into distances to obtain at least one moving sub-distance corresponding to the conveyor belt. Since the material is approximately evenly distributed in the storage cabinet, the mass of the tobacco material in each equal moving sub-distance is approximately m. The mass of the tobacco material in each equal moving sub-distance is used as a parameter to determine the abnormal parameters. Each equal moving sub-distance corresponding to the conveyor belt corresponds to the rotation angle of the motor shaft.

[0063] Based on the above scheme, the abnormal parameter K 系数 The derivation process can be:

[0064] K 传动 W 电机轴上总功 =W 底带 +W 烟草物料 Formula (1)

[0065] Among them, W 电机轴上总功 =P 瞬时 ∑t 瞬时 、W 底带 =M 底带 GUL / r、W 烟草物料 =∑mGUl / r. P 瞬时 ∑t 瞬时 =(M 物料 / 2+M底带 )LK 系数 . K 系数 =GU / rK 传动 . M 底带 is the mass of the conveyor belt. 瞬时 is the instantaneous power read on the motor shaft. 瞬时 is the accumulated working time of the motor. L is the total length of the bottom belt in one operation cycle (i.e., contact distance). l is the moving distance. G is the weight constant, U is the rolling friction coefficient of the roller, r is the radius of the transmission shaft, K 传动 Chain transmission coefficient. M 物料 is the total mass of the material in the discharge cabinet. Further, we can get the formula K can be calculated based on formula (2): 系数 The corresponding abnormal value. Formula (2) can also be used to calculate the work done by the motor shaft of the discharge cabinet in each adjacent moving sub-distance. For example, the total work corresponding to the current rotation angle (corresponding to the current moving sub-distance) can be recorded as W i , the total work corresponding to the previous rotation angle (corresponding to the previous moving distance) is recorded as W i-1 , based on formula (2), M i is the mass of material reduced in the current rotation angle, and the simplified formula (3) is: 2(W i -W i-1 ) / m=K 系数 l(3). Accordingly, the total power of the motor corresponding to the current rotation angle, the total power of the motor corresponding to the previous current rotation angle, the mass of the material reduced in the current rotation angle, and the conveyor belt moving distance corresponding to the current rotation angle can be input into formula (3) to obtain K 系数 The abnormal state of the storage cabinet can be predicted by monitoring the number and degree of changes in the abnormal value.

[0066] Based on the above solution, the program in the PLC can automatically monitor abnormal values. For example, if it detects the number of unreasonable fluctuations in abnormal values, or if the abnormal values ​​deviate significantly from the normal value, or if the number of fluctuations exceeds a set value within an operating cycle, the program will issue an alarm. By monitoring the changes in abnormal values, this technical solution can predict whether the discharge cabinet needs maintenance and repair, thereby avoiding equipment failure caused by prolonged operation in abnormal conditions.

[0067] The technical solution of this embodiment is to obtain at least one work amount corresponding to the motor in the current operating cycle; wherein the current operating cycle corresponds to the duration of the change of the discharge cabinet from the first state to the second state; the first state is the full cabinet state, and the second state is the empty cabinet state; for each work amount, based on the current work amount, the previous work amount, the conveyor belt moving distance and the discharge quality corresponding to the current work amount, determine the abnormal value corresponding to the current work amount when the discharge cabinet is working; based on each abnormal value, the preset abnormal threshold and the historical abnormal frequency, determine whether to give an abnormal prompt to the discharge cabinet, which solves the problem of low efficiency and poor accuracy of abnormal monitoring based on manual regular inspection of the discharge cabinet operation in the prior art, and realizes the acquisition of the amount of work done by the motor in the current operating cycle, and then calculates the abnormal value based on each work amount, the conveyor belt moving distance and the discharge quality, and determines whether the discharge cabinet has an abnormality by real-time monitoring of the abnormal value, thereby improving the timeliness, accuracy and convenience of abnormal determination, and achieving the technical effect of ensuring the safe operation of the discharge cabinet.

[0068] Example 3

[0069] Figure 3 Schematic diagram of a device for determining abnormal operation of a discharge cabinet according to the third embodiment of the present invention. Figure 3 As shown, the device is applied to a discharge cabinet, a conveyor belt is provided at the bottom of the discharge cabinet, and the conveyor belt is driven to move by a motor corresponding to the discharge cabinet, and a motor shaft is provided in the motor. The device includes: a work amount determination module 310, an abnormal value determination module 320 and an abnormal prompt module 330.

[0070] Among them, the work amount determination module 310 is used to obtain at least one work amount corresponding to the motor in the current operating cycle; wherein, the current operating cycle corresponds to the change time of the discharge cabinet from the first state to the second state; the first state is a full cabinet state, and the second state is an empty cabinet state; the abnormal value determination module 320 is used to determine the abnormal value corresponding to the current work amount when the discharge cabinet is working based on the current work amount, the previous work amount, the conveyor belt moving distance corresponding to the current work amount and the discharge quality for each work amount; the abnormal prompt module 330 is used to determine whether to give an abnormal prompt to the discharge cabinet based on each abnormal value, a preset abnormal threshold and a historical abnormal frequency.

[0071] The technical solution of this embodiment is to obtain at least one work amount corresponding to the motor in the current operating cycle; wherein the current operating cycle corresponds to the duration of the change of the discharge cabinet from the first state to the second state; the first state is the full cabinet state, and the second state is the empty cabinet state; for each work amount, based on the current work amount, the previous work amount, the conveyor belt moving distance and the discharge quality corresponding to the current work amount, determine the abnormal value corresponding to the current work amount when the discharge cabinet is working; based on each abnormal value, the preset abnormal threshold and the historical abnormal frequency, determine whether to give an abnormal prompt to the discharge cabinet, which solves the problem of low efficiency and poor accuracy of abnormal monitoring based on manual regular inspection of the discharge cabinet operation in the prior art, and realizes the acquisition of the amount of work done by the motor in the current operating cycle, and then calculates the abnormal value based on each work amount, the conveyor belt moving distance and the discharge quality, and determines whether the discharge cabinet has an abnormality by real-time monitoring of the abnormal value, thereby improving the timeliness, accuracy and convenience of abnormal determination, and achieving the technical effect of ensuring the safe operation of the discharge cabinet.

[0072] On the basis of the above device, optionally, the device further includes a rotation angle determination module, and the rotation angle determination module includes a moving sub-distance determination unit and a rotation angle determination unit.

[0073] a moving sub-distance determining unit, configured to divide the contact distance between the discharge cabinet and the conveyor belt to obtain at least one moving sub-distance corresponding to the conveyor belt;

[0074] The rotation angle determination unit is used to determine the rotation angle of the motor shaft corresponding to each moving sub-distance, so as to retrieve the work amount corresponding to each rotation angle in the current operation cycle when obtaining at least one work amount in the current operation cycle.

[0075] On the basis of the above device, optionally, the work amount determination module 310 includes a to-be-used power determination unit and a to-be-used work determination unit.

[0076] a power-to-be-used determining unit, configured to obtain, for each rotation angle, at least one power to be used corresponding to the current rotation angle during the process in which the discharge cabinet changes from the first state to the second state;

[0077] The unit for determining the work to be used is used to determine the work to be used corresponding to the current rotation angle based on at least one power to be used and rotation time corresponding to the current rotation angle, so as to retrieve at least one work amount corresponding to the current operating cycle from the recorded work to be used when determining whether to issue an abnormal prompt to the discharge cabinet.

[0078] Based on the above device, optionally, the to-be-used power determination unit includes a to-be-used power determination subunit.

[0079] The power to be used determination subunit is configured to record at least one power to be used corresponding to the current rotation angle based on the frequency converter during the process in which the motor shaft rotates from an initial angle to a terminal angle in the current rotation angle.

[0080] On the basis of the above device, optionally, the abnormal value determination module 320 includes an output quality determination unit, an input parameter determination unit and an abnormal value determination unit.

[0081] an output quality determination unit, configured to determine the output quality based on a current rotation angle or a current moving distance corresponding to the current work amount;

[0082] an input parameter determination unit, configured to use the current work amount, the previous work amount, the conveyor belt moving distance, and the output material quality as input parameters of an objective function; wherein the conveyor belt moving distance corresponds to the current moving sub-distance;

[0083] An abnormal value determining unit is used to determine an abnormal value corresponding to the current work amount based on the input parameter and the objective function.

[0084] On the basis of the above device, optionally, the discharge quality determination unit includes a material quality determination subunit and a discharge quality determination subunit.

[0085] a material quality determination subunit, configured to determine an initial material quality corresponding to an initial moving node in the current moving sub-distance, and a final material quality corresponding to a final moving node in the current moving sub-distance;

[0086] The discharge quality determination subunit is used to determine the discharge quality based on the initial material quality and the final material quality.

[0087] Based on the above device, optionally, the preset abnormality threshold includes at least three abnormality thresholds, and determining whether the discharge cabinet is abnormal includes at least one of the following methods:

[0088] The abnormal value of the current work amount is greater than a first abnormal threshold;

[0089] The historical abnormal frequency corresponding to the current work amount is greater than a preset abnormal frequency; wherein the historical abnormal frequency is determined based on abnormal values ​​greater than a second abnormal threshold value among the current work amount and each work amount before the current work amount;

[0090] The abnormal difference between the abnormal value of the current work amount and the abnormal value of the previous work amount is greater than a third abnormal threshold;

[0091] The fluctuation rate corresponding to the abnormal value of the current work amount is greater than the average fluctuation rate; wherein the average fluctuation rate is determined based on the abnormal values ​​of each work amount before the current work amount.

[0092] The device for determining abnormal operation of a discharge cabinet provided by an embodiment of the present invention can execute the method for determining abnormal operation of a discharge cabinet provided by any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0093] Example 4

[0094] Figure 4 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0095] like Figure 4 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0096] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0097] The processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for determining abnormal operation of the discharge cabinet.

[0098] In some embodiments, the method for determining that the discharge cabinet is operating abnormally may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for determining that the discharge cabinet is operating abnormally described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the method for determining that the discharge cabinet is operating abnormally in any other appropriate manner (e.g., by means of firmware).

[0099] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0100] Computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable device for determining abnormal operation of a discharge cabinet, such that when executed by the processor, the computer programs implement the functions / operations specified in the flowcharts and / or block diagrams. The computer programs can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0101] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0102] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0103] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0104] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0105] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0106] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for determining abnormal operation of a discharge cabinet, characterized in that: The method includes, for application to a discharge cabinet, a conveyor belt is provided at the bottom of the discharge cabinet, the conveyor belt is driven by a motor corresponding to the discharge cabinet, and a motor shaft is provided in the motor. The method includes: Obtain at least one amount of work corresponding to the motor in a current operating cycle; wherein the current operating cycle corresponds to a duration of time during which the discharge cabinet changes from a first state to a second state; the first state is a full cabinet state, and the second state is an empty cabinet state; the amount of work refers to the work done by the motor in at least one operating duration during the process of the discharge cabinet changing from a full cabinet state to an empty cabinet state; For each work amount, based on the current work amount, the previous work amount, the conveyor belt movement distance corresponding to the current work amount, and the discharge quality, determine the abnormal value corresponding to the current work amount when the discharge cabinet is working; Determine whether to issue an abnormal prompt to the discharge cabinet based on each abnormal value, a preset abnormal threshold and a historical abnormal frequency; The method of determining an abnormal value corresponding to the current work amount when the discharge cabinet is working based on the current work amount, the previous work amount, the conveyor belt moving distance corresponding to the current work amount, and the discharge quality includes: Determining the discharge quality based on the current rotation angle or the current moving distance corresponding to the current work amount; The current work amount, the previous work amount, the conveyor belt moving distance and the output quality are used as input parameters of the objective function; wherein the conveyor belt moving distance corresponds to the current moving distance; the objective function is 2(W i -W i-1 ) / m=K 系数 l, where W i is the current work done, W i-1 is the previous work done, l is the moving distance of the conveyor belt, m is the discharge mass, K 系数 is an abnormal parameter; Based on the input parameters and the objective function, an abnormal value corresponding to the current work amount is determined.

2. The method according to claim 1, characterized in that Before obtaining at least one work amount corresponding to the motor in the current operation cycle, the method further includes: Dividing the contact distance between the discharge cabinet and the conveyor belt to obtain at least one moving sub-distance corresponding to the conveyor belt; The rotation angle of the motor shaft corresponding to each moving sub-distance is determined, so that when obtaining at least one work amount in the current operation cycle, the work amount corresponding to each rotation angle in the current operation cycle is retrieved.

3. The method according to claim 1 or 2, characterized in that The obtaining of at least one amount of work corresponding to the motor in the current operation cycle includes: When the discharge cabinet changes from the first state to the second state, for each rotation angle, obtaining at least one power to be used corresponding to the current rotation angle; Based on at least one power to be used and rotation time corresponding to the current rotation angle, the work to be used corresponding to the current rotation angle is determined, so that when determining whether to issue an abnormal prompt to the discharge cabinet, at least one work amount corresponding to the current operating cycle is retrieved from the recorded work to be used.

4. The method according to claim 3, characterized in that The obtaining of at least one power to be used corresponding to the current rotation angle includes: During the process of the motor shaft rotating from an initial angle to a terminal angle in a current rotation angle, at least one power to be used corresponding to the current rotation angle is recorded based on the frequency converter.

5. The method according to claim 1, characterized in that The determining of the discharge quality based on the current moving distance corresponding to the current work amount includes: Determining an initial material mass corresponding to an initial moving node in the current moving sub-distance and a final material mass corresponding to a final moving node in the current moving sub-distance; The output material mass is determined based on the initial material mass and the final material mass.

6. The method according to claim 1, characterized in that The preset abnormality thresholds include at least three abnormality thresholds, and determining whether the discharge cabinet is abnormal includes at least one of the following methods: The abnormal value of the current work amount is greater than a first abnormal threshold; The historical abnormal frequency corresponding to the current work amount is greater than a preset abnormal frequency; wherein the historical abnormal frequency is determined based on abnormal values ​​greater than a second abnormal threshold value among the current work amount and each work amount before the current work amount; The abnormal difference between the abnormal value of the current work amount and the abnormal value of the previous work amount is greater than a third abnormal threshold; The fluctuation rate corresponding to the abnormal value of the current work amount is greater than the average fluctuation rate; wherein the average fluctuation rate is determined based on the abnormal values ​​of each work amount before the current work amount.

7. A device for determining abnormal operation of a discharge cabinet, characterized in that: The device is applied to a discharge cabinet, wherein a conveyor belt is provided at the bottom of the discharge cabinet, and the conveyor belt is driven by a motor corresponding to the discharge cabinet, wherein a motor shaft is provided in the motor. The device comprises: a work amount determination module, configured to obtain at least one work amount corresponding to the motor in a current operating cycle; wherein the current operating cycle corresponds to a duration of time during which the discharge cabinet changes from a first state to a second state; the first state is a full cabinet state, and the second state is an empty cabinet state; the work amount refers to the work done by the motor in at least one operating duration during the process of the discharge cabinet changing from a full cabinet state to an empty cabinet state; an abnormal value determination module for determining, for each work amount, an abnormal value corresponding to the current work amount when the discharge cabinet is operating based on the current work amount, the previous work amount, the conveyor belt movement distance corresponding to the current work amount, and the discharge quality; An abnormality prompt module is used to determine whether to issue an abnormality prompt to the discharge cabinet based on each abnormal value, a preset abnormality threshold and a historical abnormality frequency; Wherein, the abnormal value determination module includes an output quality determination unit, an input parameter determination unit and an abnormal value determination unit; The discharge quality determination unit is configured to determine the discharge quality based on a current rotation angle or a current moving distance corresponding to the current work amount; The input parameter determination unit is used to use the current work amount, the previous work amount, the conveyor belt moving distance and the output quality as input parameters of the objective function; wherein the conveyor belt moving distance corresponds to the current moving distance; the objective function is 2(W i -W i-1 ) / m=K 系数 l, where W i is the current work done, W i-1 is the previous work done, l is the moving distance of the conveyor belt, m is the discharge mass, K 系数 is an abnormal parameter; The abnormal value determination unit is used to determine an abnormal value corresponding to the current work amount based on the input parameter and the objective function.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the method for determining abnormal operation of the discharge cabinet according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining abnormal operation of a discharge cabinet according to any one of claims 1 to 6 when executed.

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