A control method for automatic wire feeding system

Abstract

The present invention discloses a control method for an automatic wire feeding system. During operation of the automatic wire feeding system, it is determined whether the current wire storage device is the first wire storage device; if so, a first negative pressure value and a second negative pressure value are obtained; based on the first negative pressure value and the second negative pressure value, a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value are determined; wherein the target negative pressure value determines the operating frequency to be used of the current wire storage device; based on the operating frequency to be used and information about the height of materials stacked on a belt conveyor, a target operating frequency of the current wire storage device is determined; and according to the first feeding frequency, the second feeding frequency, and the target operating frequency, the operation of the automatic wire feeding system is controlled, thereby solving the technical problems of low accuracy in determining adjustment parameters and unstable wire feeding flow of the automatic wire feeding system, realizing automatic start and stop and dynamic parameter adjustment, improving the accuracy in determining adjustment parameters, and enhancing the stability of wire feeding flow.

Description

Technical Field

[0001] The present invention relates to the field of information processing technology, and in particular to a control method applied to an automatic wire feeding system. Background Art

[0002] In cigarette manufacturing, pneumatic wire feeding ducts are typically used to transport cut tobacco from the tobacco production line (feeder) to the cigarette packaging line (cigarette maker). The tobacco supply system refers to the process section from the tobacco storage equipment to the tobacco feeder. The tobacco in the tobacco storage equipment is delivered to the tobacco feeder via a belt conveyor. The tobacco feeder then transports the tobacco to the cigarette maker via pneumatic wire feeding ducts for packaging.

[0003] At present, the transportation of materials from the wire storage equipment to the wire feeder is mainly achieved by manually controlling the start and stop of related equipment and adjusting the operating parameters. The staff can switch between multiple preset frequencies from the controller end to control the amount of material conveyed. Generally, the higher the frequency, the greater the material conveying amount.

[0004] However, the above method is that the staff adjusts the operating parameters of the relevant equipment through accumulated experience, which has technical problems such as high dependence on manual labor, low accuracy in determining the adjustment parameters, and unstable wire supply flow. Summary of the Invention

[0005] The present invention provides a control method applied to an automatic wire feeding system, which realizes automatic start and stop and dynamic parameter adjustment of the automatic wire feeding system, improves the accuracy of determining the adjustment parameters, reduces the equipment failure rate, and improves the stability of the wire feeding flow.

[0006] In a first aspect, the present invention provides a control method for an automatic wire feeding system, the automatic wire feeding system comprising: a wire feeding machine, the wire feeding machine comprising a first silo and a second silo, at least one first pneumatic wire feeding pipe connected to the outlet end of the first silo, at least one second pneumatic wire feeding pipe connected to the outlet end of the second silo, a belt conveyor connected to the inlet end of the wire feeding machine, and at least one wire storage device connected to the belt conveyor, characterized in that the automatic wire feeding system further comprises: a first negative pressure measuring device disposed on the first pneumatic wire feeding pipe and a second negative pressure measuring device disposed on the second pneumatic wire feeding pipe, the method comprising:

[0007] During operation of the automatic wire feeding system, determining whether the current wire storage device is the first wire storage device;

[0008] If so, obtaining a first negative pressure value collected by the first negative pressure measuring device and a second negative pressure value collected by the second negative pressure measuring device;

[0009] Based on the first negative pressure value and the second negative pressure value, determining a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value; wherein the target negative pressure value determines the operating frequency to be used of the current wire storage device;

[0010] Determining a target operating frequency of the current wire storage device based on the operating frequency to be used and information about the height of the materials stacked on the belt conveyor;

[0011] The operation of the automatic wire feeding system is controlled according to the first wire feeding frequency, the second wire feeding frequency and the target operating frequency.

[0012] In a second aspect, the present invention provides a control device for an automatic wire feeding system, the device comprising:

[0013] a first device determining module, configured to determine whether a current wire storage device is the first wire storage device during operation of the automatic wire feeding system;

[0014] a negative pressure value determining module, configured to obtain a first negative pressure value collected by the first negative pressure measuring device and a second negative pressure value collected by the second negative pressure measuring device if the current wire storage device is the first wire storage device;

[0015] a target parameter determination module, configured to determine, based on the first negative pressure value and the second negative pressure value, a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value; wherein the target negative pressure value determines the operating frequency to be used of the current wire storage device;

[0016] a target frequency determination module, configured to determine a target operating frequency of the current wire storage device based on the operating frequency to be used and information on a height of materials stacked on the belt conveyor;

[0017] The system operation control module is used to control the operation of the automatic wire feeding system according to the first wire feeding frequency, the second wire feeding frequency and the target operation frequency.

[0018] In a third aspect, the present invention provides a data processing electronic device, comprising:

[0019] at least one processor; and

[0020] a memory communicatively connected to at least one processor; wherein,

[0021] The memory stores a computer program that can be executed by at least one processor. The computer program is executed by the at least one processor so that the at least one processor can execute the control method applied to the automatic wire feeding system according to any embodiment of the present invention.

[0022] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer instructions, which are used to enable a processor to implement the control method for an automatic wire feeding system according to any embodiment of the present invention when executed.

[0023] In a fifth aspect, the present invention provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the control method applied to the automatic wire feeding system according to any embodiment of the present invention.

[0024] The technical solution provided by an embodiment of the present invention determines whether the current wire storage device is the first wire storage device during the operation of an automatic wire feeding system. If so, it obtains a first negative pressure value collected by a first negative pressure measuring device and a second negative pressure value collected by a second negative pressure measuring device. Based on the first and second negative pressure values, it then determines a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value. The target negative pressure value determines the current wire storage device's pending operating frequency. Subsequently, based on the pending operating frequency and the material height information stacked on the belt conveyor, it determines the current wire storage device's target operating frequency. Furthermore, the automatic wire feeding system is controlled based on the first and second feeding frequencies and the target operating frequency. The technical solution provided by the present invention solves the technical problems of high manual reliance on operating parameter adjustment in automatic wire feeding systems, low parameter adjustment accuracy, and unstable wire feed flow. It enables automatic start-stop and dynamic parameter adjustment of the automatic wire feeding system, improves the accuracy of parameter adjustment, reduces equipment failure rate, and enhances the stability of wire feed flow.

[0025] 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

[0026] 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.

[0027] Figure 1 Schematic diagram of an automatic wire feeding system according to an embodiment of the present invention;

[0028] Figure 2 This is a flow chart of a control method applied to an automatic wire feeding system provided in the first embodiment of the present invention;

[0029] Figure 3 This is a flow chart of a control method applied to an automatic wire feeding system provided in the second embodiment of the present invention;

[0030] Figure 4 A schematic structural diagram of a control device for an automatic wire feeding system provided in a fourth embodiment of the present invention;

[0031] Figure 5 This is a structural diagram of an electronic device provided in Example 5 of the present invention. DETAILED DESCRIPTION

[0032] 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.

[0033] It should be noted that the terms "first precondition," "second precondition," and the like in the specification 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 precedence. It should be understood that the terms used in this manner are interchangeable 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," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0034] Before introducing this technical solution, we can first give an example of the application scenario. In cigarette processing, in the process of rolling scattered tobacco into cigarettes, a wind-powered wire feeding pipe is generally used to remotely transport tobacco from the wire making line (wire feeding machine) to the rolling line (cigarette making machine). The wire feeding system refers to the process section from the wire storage device to the cigarette making machine. For a schematic diagram of the automatic wire feeding system involved in the embodiment of the present invention, see Figure 1 .like Figure 1As shown, the automatic wire feeding system includes: a wire feeder, the wire feeder includes a first silo and a second silo, at least one first wind wire feeding pipe connected to the outlet end of the first silo, wherein the first wind wire feeding pipe includes wind wire feeding pipe 1, wind wire feeding pipe 2, ..., wind wire feeding pipe p, etc., at least one second wind wire feeding pipe connected to the outlet end of the second silo, wherein the second wind wire feeding pipe includes wind wire feeding pipe 11, wind wire feeding pipe 22, ..., wind wire feeding pipe qq, etc., a belt conveyor connected to the inlet end of the wire feeder and at least one wire storage device connected to the belt conveyor.

[0035] In actual applications, the material in the wire storage device is delivered to the wire feeder via a belt conveyor, and the wire feeder then transports the material to the cigarette making machine for packaging via a pneumatic wire feeding pipe. During this process, the staff can switch the power equipment in the automatic wire feeding system to multiple preset frequencies from the controller end, thereby controlling the size of the material conveying amount and realizing the conveying of the material from the wire storage device to the wire feeder. However, the correspondence between the pneumatic wire feeding pipe and the cigarette making machine is constantly adjusted. Some wire feeders have three pipes on one side, and some have two pipes to supply tobacco to a cigarette making machine. This constantly adjusted correspondence brings great inconvenience to manual operation, and unreasonable parameter settings often lead to material blockage or breakage. Such staff adjust the operating parameters of related equipment through accumulated experience, which has technical problems such as high manual dependence, low accuracy in determining the adjustment parameters, and unstable wire supply flow. Based on this, the automatic wire supply control method provided by the present invention replaces manual wire feeding, reduces the frequency of failures, and improves the stability of the wire supply flow of the cigarette making machine.

[0036] Based on the above automatic wire feeding system, the technical solution provided by the embodiment of the present invention further includes: a first negative pressure measuring device disposed on the first wind-powered wire feeding pipe and a second negative pressure measuring device disposed on the second wind-powered wire feeding pipe. The specific positions of the first negative pressure measuring device and the second negative pressure measuring device in the automatic wire feeding system are shown in FIG. Figure 1 Among them, the first negative pressure measuring device can collect the negative pressure value in the first wind-powered wire feeding pipe, and the second negative pressure measuring device can collect the negative pressure value in the second wind-powered wire feeding pipe.

[0037] Example 1

[0038] Figure 2 This is a flowchart of a control method for an automatic tobacco supply system provided in the first embodiment of the present invention. This embodiment is applicable to the situation where the tobacco supply amount of the automatic tobacco supply system is controlled. The method can be executed by a control device applied to the automatic tobacco supply system. The device can be implemented in the form of hardware and / or software. The device can be configured on a computer device, which can be a notebook, desktop computer, smart tablet, etc. Figure 2As shown, the method includes:

[0039] S110 , during operation of the automatic wire feeding system, determining whether the current wire storage device is the first wire storage device.

[0040] The current tobacco storage device is the one that is currently supplying tobacco to the entire automatic tobacco feeding system, and the first tobacco storage device is the one that first stores tobacco when tobacco is transferred from the previous process stage to the tobacco storage device.

[0041] Specifically, the automatic tobacco feeding system includes multiple tobacco storage devices. Cut tobacco, delivered from the previous process stage to the tobacco feeding system, is stored in each of these devices. When the automatic tobacco feeding system is in operation, the power device at the bottom outlet of the tobacco storage device begins to operate, causing the tobacco in the storage device to drop onto the belt conveyor. During this process, to avoid multiple devices operating simultaneously, which would cause production disruption and waste of resources, under normal operation, only one tobacco storage device is allowed to operate at any one time. This storage device is the current tobacco feeding device. Based on the target feeding time corresponding to the current storage device, it is determined whether the current storage device is the first tobacco storage device.

[0042] On the basis of the above embodiment, determining whether the current wire storage device is the first wire storage device includes: obtaining the target feeding time corresponding to the current wire storage device; determining at least one wire storage device to be selected corresponding to the wire feeder based on the coding information of the wire feeder, and obtaining the feeding time to be compared corresponding to each wire storage device to be selected; if the target feeding time is greater than the longest feeding time to be compared among the feeding times to be compared, the current wire storage device is the first wire storage device.

[0043] Among them, the feeding time is the time it takes for the tobacco to be stored in the tobacco storage equipment.

[0044] In this embodiment, since there are multiple wire feeders in the actual factory, each wire feeder has corresponding coding information, and each wire feeder is pre-assigned to at least one corresponding wire storage device. When determining whether the current wire storage device is the first wire storage device, first obtain the target feeding time corresponding to the current wire storage device. According to the correspondence between the wire feeder and at least one wire storage device, the coding information of the wire feeder corresponding to the current wire storage device can be determined. Further query the pre-established correspondence table between the wire feeder and at least one wire storage device to determine at least one wire storage device to be selected corresponding to the wire feeder, and obtain the corresponding feeding time to be compared corresponding to each wire storage device to be selected, so as to compare the target feeding time with the corresponding feeding time to be compared corresponding to each wire storage device to be selected. If the target feeding time is greater than the longest feeding time to be compared among the feeding times to be compared, the current wire storage device is the first wire storage device.

[0045] For example, the target feeding time corresponding to the current wire storage device is 3 minutes, and at least one wire storage device to be selected corresponding to the wire feeder is determined to include wire storage device 1 to be selected, wire storage device 2 to be selected, and wire storage device 3 to be selected. The feeding time to be compared corresponding to wire storage device 1 to be selected is 2 minutes, the feeding time to be compared corresponding to wire storage device 2 to be selected is 1 minute and 30 seconds, and the feeding time to be compared corresponding to wire storage device 3 to be selected is 1 minute. The current wire storage device can be the first wire storage device.

[0046] S120: If yes, obtain a first negative pressure value collected by the first negative pressure measuring device and a second negative pressure value collected by the second negative pressure measuring device.

[0047] In this embodiment, the first negative pressure measuring device can collect the negative pressure value corresponding to the first wind wire feeding pipeline in real time, and the second negative pressure measuring device can collect the negative pressure value corresponding to the second wind wire feeding pipeline in real time. If it can be determined whether the current wire storage device is the first wire storage device, the first negative pressure value collected by the first negative pressure measuring device and the second negative pressure value collected by the second negative pressure measuring device can be directly obtained.

[0048] S130. Determine a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value based on the first negative pressure value and the second negative pressure value.

[0049] The target negative pressure value is determined based on the first and second negative pressure values. Once the first and second negative pressure values ​​are determined, the target negative pressure value can be determined. The target negative pressure value is used to determine the standby operating frequency of the current wire storage device. The standby operating frequency is the operating frequency corresponding to when the current wire storage device is about to operate.

[0050] In this embodiment, a motor with a frequency converter is installed at the outlet of the tobacco feeder silo. The amount of tobacco discharged from the first silo can be adjusted by controlling the motor's frequency. The first feeding frequency corresponds to the operating frequency at which the motor at the first silo outlet is about to operate. The second feeding frequency corresponds to the operating frequency at which the motor at the second silo outlet is about to operate.

[0051] On the basis of the above embodiment, the first wire feeding frequency, the second wire feeding frequency and the target negative pressure value are determined, specifically including: determining the first wire feeding frequency corresponding to the first silo and the second wire feeding frequency corresponding to the second silo based on the correspondence between the first negative pressure value, the second negative pressure value, the preset single-side silo negative pressure value and the wire feeding frequency; determining the target negative pressure value based on the first negative pressure value and the second negative pressure value.

[0052] In this embodiment, a correspondence table between the negative pressure values ​​of the unilateral silo and the wire feeding frequency is pre-stored. After the first and second negative pressure values ​​are determined, the first wire feeding frequency corresponding to the first silo and the second wire feeding frequency corresponding to the second silo are determined by querying the correspondence table.

[0053] In this embodiment, the target negative pressure value is the sum of the first negative pressure value and the second negative pressure value. The tobacco shreds coming out of the current tobacco storage device are transported to the first silo and the second silo via the belt conveyor. Figure 1 As shown, in actual application, by controlling the relative position of belt conveyor n, the tobacco on belt conveyor n is fed into the first silo once and the second silo once, that is, the tobacco on belt conveyor n is alternately fed into the first silo and the second silo. The first negative pressure value can be used to represent the amount of tobacco to be discharged from the first silo, the second negative pressure value can be used to represent the amount of tobacco to be discharged from the second silo, and the target negative pressure value is used to represent the amount of tobacco to be discharged from the current storage device. Based on this, in this embodiment, the target negative pressure value is calculated as the sum of the first negative pressure value and the second negative pressure value.

[0054] Optionally, the operating frequency to be used of the current wire storage equipment is determined according to the target negative pressure value, including: determining the operating frequency to be used of the current wire storage equipment based on the correspondence between the target negative pressure value, the pre-set double-sided silo negative pressure value and the operating frequency of the wire storage equipment.

[0055] In this embodiment, a correspondence table between the negative pressure values ​​of the double-sided silos and the operating frequencies of the wire storage equipment is provided. After determining the target negative pressure value, the operating frequency of the current wire storage equipment to be used is determined by querying the correspondence table.

[0056] S140. Determine the target operating frequency of the current wire storage device based on the operating frequency to be used and the height information of the materials stacked on the belt conveyor.

[0057] The material height information is the height of the material stack on the belt conveyor. This information can be used to determine the actual amount of tobacco scattered from the tobacco storage device. The target operating frequency is the operating frequency that the tobacco storage device will currently use.

[0058] It should be noted that the purpose of determining the material height information is to regulate the operating frequency of the current tobacco storage equipment through the material height information so that the amount of tobacco scattered from the current tobacco storage equipment is relatively uniform, avoiding the risk of blockage and breakage.

[0059] Specifically, a preset upper limit height and a preset lower limit height are stored in advance, and the preset upper limit height and the preset lower limit height are set to a preset height range. During the operation of the dynamic wire feeding system, the height information of the materials stacked on the belt conveyor can be collected in real time. If the material height information is within the preset height range, the target operating frequency of the current wire storage device is the operating frequency to be used. If the material height information is not within the preset height range, the operating frequency of the current wire storage device will be frequency-converted until the material height information returns to the preset height range, and the frequency corresponding to when the material height information is just within the preset height range is used as the target operating frequency.

[0060] S150: Control the operation of the automatic wire feeding system according to the first wire feeding frequency, the second wire feeding frequency, and the target operating frequency.

[0061] In this embodiment, by controlling the motor frequency converter corresponding to the first silo, the operating frequency of the first silo power unit is adjusted to the first wire feeding frequency; by controlling the motor frequency converter corresponding to the second silo, the operating frequency of the second silo power unit is adjusted to the second wire feeding frequency; by controlling the motor frequency converter corresponding to the current wire storage device, the operating frequency of the current wire storage device power unit is adjusted to the target operating frequency, so that the first silo operates at the first wire feeding frequency, the second silo operates at the second wire feeding frequency, and the current wire storage device operates at the target operating frequency, thereby realizing the automatic operation of the automatic wire feeding system.

[0062] The technical solution provided by an embodiment of the present invention determines whether the current wire storage device is the first wire storage device during the operation of an automatic wire feeding system. If so, it obtains a first negative pressure value collected by a first negative pressure measuring device and a second negative pressure value collected by a second negative pressure measuring device. Based on the first and second negative pressure values, it then determines a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value. The target negative pressure value determines the current wire storage device's pending operating frequency. Subsequently, based on the pending operating frequency and the material height information stacked on the belt conveyor, it determines the current wire storage device's target operating frequency. Furthermore, the automatic wire feeding system is controlled based on the first and second feeding frequencies and the target operating frequency. The technical solution provided by the present invention solves the technical problems of high manual reliance on operating parameter adjustment in automatic wire feeding systems, low parameter adjustment accuracy, and unstable wire feed flow. It enables automatic start-stop and dynamic parameter adjustment of the automatic wire feeding system, improves the accuracy of parameter adjustment, reduces equipment failure rate, and enhances the stability of wire feed flow.

[0063] Based on the above embodiment, the automatic wire feeding system also includes a distance meter arranged opposite to the belt conveyor, and the method also includes: obtaining the distance information between the distance meter detection head and the material on the belt conveyor based on the data collected by the distance meter; retrieving the preset distance information between the distance meter detection head and the belt conveyor; and determining the material height information based on the distance information and the preset distance information.

[0064] The rangefinder is used to determine the material height information. For example, the rangefinder can be an ultrasonic rangefinder, an infrared rangefinder, etc.

[0065] In this embodiment, a distance meter can be pre-set at a relative position of the belt conveyor. The specific position of the distance meter is not limited here, and it can be set at a relative position of the belt conveyor. For example, the distance meter can be set at a position close to the wire storage device, such as Figure 1 As shown in the ultrasonic rangefinder 1 in FIG. In the process of determining the material height information, the rangefinder can collect the distance information between the rangefinder probe and the material on the belt conveyor in real time. The preset distance information between the rangefinder probe and the belt conveyor can be measured and determined in advance. The preset distance information measured in advance is stored here, and the preset distance information can be directly retrieved here. After determining the preset distance information and the distance information, the difference between the preset distance information and the distance information is the material height information.

[0066] For example, the preset distance information is 10 centimeters, and the distance information collected by the rangefinder between the rangefinder detection head and the material on the belt conveyor is 4 centimeters, then the material height information is 6 centimeters.

[0067] Example 2

[0068] Figure 3 The second embodiment of the present invention provides a flow chart of a control method for an automatic wire feeding system. Based on the above embodiment, the present embodiment further refines step S140 of the present embodiment. The present embodiment can be combined with various optional solutions in one or more of the above embodiments. Figure 3 As shown, the method includes:

[0069] S210: During operation of the automatic wire feeding system, determine whether the current wire storage device is the first wire storage device. If so, obtain a first negative pressure value collected by the first negative pressure measuring device and a second negative pressure value collected by the second negative pressure measuring device.

[0070] S220: Determine a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value based on the first negative pressure value and the second negative pressure value.

[0071] S230: Determine whether the material height information is between a preset upper limit height and a preset lower limit height.

[0072] In this embodiment, a preset upper limit height and a preset lower limit height are pre-stored. After the material height information is determined, it is further determined whether the material height information is between the preset upper limit height and the preset lower limit height.

[0073] S231: If yes, the operating frequency to be used is the target operating frequency.

[0074] If the material height information is between the preset upper limit height and the preset lower limit height, it indicates that operating at the previously determined operating frequency to be used can make the amount of tobacco actually scattered from the tobacco storage device relatively uniform. At this time, the operating frequency to be used is used as the target operating frequency.

[0075] S232: If not, determine the target operating frequency of the current wire storage device according to the material height information, the preset upper limit height, and the preset lower limit height.

[0076] If the material height information is not between the preset upper limit height and the preset lower limit height, it indicates that there may be a risk of material blockage or breakage when operating at the previously determined operating frequency to be used. At this time, it is necessary to determine the target operating frequency of the current wire storage equipment.

[0077] Based on the above embodiment, determining the target operating frequency of the current wire storage device specifically includes:

[0078] If the material height information exceeds the preset upper limit height, the operating frequency to be used will be down-converted. When the material height information is less than or equal to the upper limit height, the first current operating frequency corresponding to this time will be determined as the target operating frequency; if the material height information is lower than the preset lower limit height, the operating frequency to be used will be up-converted. When the material height information is greater than or equal to the upper limit height, the second current operating frequency corresponding to this time will be determined as the target operating frequency.

[0079] For example, the preset upper limit height is 6 cm, the preset lower limit height is 4 cm, and the preset height range is 4-6 cm. If the material height information stacked on the belt conveyor is 8 cm, and the material height information exceeds the preset upper limit height, the operating frequency of the current wire storage device will be lowered until the collected material height information is less than or equal to 6 cm, then the operating frequency of the current wire storage device will be stopped from being adjusted, and the operating frequency at this time will be used as the target operating frequency; if the material height information stacked on the belt conveyor is 5 cm, and the material height information is within the preset height range, then the target operating frequency of the current wire storage device will be the operating frequency to be used; if the material height information stacked on the belt conveyor is 3 cm, and the material height information has not reached the preset lower limit height, then the operating frequency of the current wire storage device will be increased until the collected material height information is greater than or equal to 4 cm, then the operating frequency of the current wire storage device will be stopped from being adjusted, and the operating frequency at this time will be used as the target operating frequency.

[0080] On the basis of the above embodiment, it also includes: when the material height information is greater than the preset upper limit height within the preset time, a material blockage warning signal is issued; when the material height information is less than the preset lower limit height within the preset time, a material break warning signal is issued.

[0081] In this embodiment, when the material height information continues to exceed the preset upper limit height for a period of time, the current wire storage device outputs too much wire, and there is a risk of material blockage, so a material blockage warning signal can be issued at this time to prompt the staff to be vigilant and take corresponding measures; when the material height information continues to fail to reach the preset lower limit height for a period of time, the current wire storage device outputs too little wire, and there is a risk of material breakage, so a material breakage warning signal can be issued at this time.

[0082] S240: Control the operation of the automatic wire feeding system according to the first wire feeding frequency, the second wire feeding frequency, and the target operating frequency.

[0083] S250: When it is detected that the current wire storage device is in the tailing state, determine the next current wire storage device.

[0084] In this embodiment, there is a material detection device in the wire storage equipment, and the storage capacity of the material in the wire storage equipment can be determined by the material detection device. If the storage capacity of the current wire storage equipment is less than a certain threshold value, the current wire storage equipment is in a tailing state. At this time, it is necessary to determine the next wire storage equipment that provides materials for the entire automatic wire feeding system. When determining the next current wire storage equipment, a size comparison is also performed based on the corresponding feeding time to be compared of each wire storage equipment to be selected, and the wire storage equipment to be selected with the longest feeding time to be compared is used as the next current wire storage equipment.

[0085] S260: Adjust the target operating frequency of the current wire storage device to a preset upper limit frequency, and determine the limit height information at this time.

[0086] The preset upper limit frequency is the maximum operating frequency set in advance for the wire storage device. The limit height information is the height of the material stack on the belt conveyor when the wire storage device is currently operating at the preset upper limit frequency.

[0087] In this embodiment, when the current wire storage device is in the tail-of-material state, in order to enable the material in the current wire storage device to be shipped out as soon as possible, the target operating frequency is adjusted to the preset upper limit frequency, and it is operated at the preset upper limit frequency, and the maximum height information of the material stacking on the belt conveyor is obtained.

[0088] S270 , determining the height information to be compensated based on the limit height information and the preset upper limit height, so as to determine the initial operating frequency of the next current wire storage device based on the height information to be compensated.

[0089] The height information to be compensated is the difference between the limit height information and the preset upper limit height.

[0090] In this embodiment, to avoid wire breakage, when the current wire storage device is in the tailing state, the next current wire storage device begins operating, and the initial operating frequency of the next current wire storage device is determined by the height information to be compensated. Specifically, a correspondence table between the height information to be compensated and the initial operating frequency of the next current wire storage device can be pre-stored. Once the height information to be compensated is determined, the initial operating frequency of the next current wire storage device can be determined by querying the correspondence table.

[0091] S280: Control the operation of the automatic wire feeding system according to the first wire feeding frequency, the second wire feeding frequency, the target operating frequency, and the initial operating frequency.

[0092] In this embodiment, when the current wire storage device is in the tailings state, the current wire storage device and the next current wire storage device operate simultaneously to ensure a stable wire supply flow rate. This can be understood as a transitional phase during which both wire storage devices operate simultaneously during the handover between the two wire storage devices. During this period, the wire feeder operates at the first and second feeding frequencies, the current wire feeder operates at the target operating frequency, and the next current wire feeder operates at the initial operating frequency, thereby controlling the automated operation of the automatic wire feeding system.

[0093] S290. When it is detected that the current wire storage device is updated from the tail material state to the empty material state, the next current wire storage device is used as the current wire storage device, and the process of determining whether the current wire storage device is the first wire storage device is repeated.

[0094] In this embodiment, when all the materials in the current wire storage device are shipped out, the current wire storage device is updated from the tail material state to the empty material state. At this time, the current wire storage device stops running, and the next current wire storage device continues to run. At the same time, the next current wire storage device is automatically upgraded to the current wire storage device, and the above steps S210-S280 are executed in a loop.

[0095] The technical solution provided by an embodiment of the present invention determines whether the current wire storage device is the first wire storage device during the operation of the automatic wire feeding system. If so, the first negative pressure value collected by the first negative pressure measuring device and the second negative pressure value collected by the second negative pressure measuring device are obtained. Based on the first and second negative pressure values, the first wire feeding frequency corresponding to the first silo, the second wire feeding frequency corresponding to the second silo, and the target negative pressure value are determined. The target negative pressure value determines the operating frequency to be used for the current wire storage device. Subsequently, it is determined whether the material height information is between a preset upper limit height and a preset lower limit height. If so, the operating frequency to be used is the target operating frequency. If not, the target operating frequency of the current wire storage device is determined based on the material height information, the preset upper limit height, and the preset lower limit height. The operation of the automatic wire feeding system is then controlled based on the first wire feeding frequency, the second wire feeding frequency, and the target operating frequency. Furthermore, when it is detected that the current wire storage device is in the tailing state, the next current wire storage device is determined, the target operating frequency of the current wire storage device is adjusted to the preset upper limit frequency, and the limit height information at this time is determined. Based on the limit height information and the preset upper limit height, the height information to be compensated is determined to determine the initial operating frequency of the next current wire storage device based on the height information to be compensated. Subsequently, according to the first wire feeding frequency, the second wire feeding frequency, the target operating frequency, and the initial operating frequency, the operation of the automatic wire feeding system is controlled. When it is detected that the current wire storage device is updated from the tailing state to the empty state, the next current wire storage device is used as the current wire storage device, and the determination of whether the current wire storage device is the first wire storage device is repeated. The technical solution provided by the present invention is that when the current wire storage device is in the tailing state, the current wire storage device and the next current wire storage device operate simultaneously to ensure the stability of the wire supply flow rate, thereby solving the technical problem of unstable wire supply flow rate of the automatic wire feeding system, realizing automatic start and stop and dynamic parameter adjustment of the automatic wire feeding system, and further improving the stability of the wire supply flow rate.

[0096] Example 3

[0097] In an embodiment of the present invention, a control method for an automatic wire feeding system is described in detail using a specific embodiment. In this embodiment, the control device of the automatic wire feeding system may be a PLC controller, and the method includes the following steps:

[0098] (1) Equipment self-check, confirm that there is no alarm in the equipment from the wire storage equipment to the wire feeding machine, and that they are in the "remote" and "automatic" states. After confirmation, the process section enters the "ready" state;

[0099] (2) Selection of the discharge cabinet: first, screen the storage equipment with the same wire brand as the wire feeding machine, and select the storage equipment with the status of "discharging" or "storing" among these storage equipment. Then, sort the selected storage equipment according to the principle of "first in, first out", make the first storage equipment enter the "standby" state, and use the first storage equipment as the current storage equipment;

[0100] (3) Equipment startup: When any negative pressure switch is turned on, the bottom belt and the roller on the corresponding side of the wire feeder start, and the operating frequency is the set initial value. When any silo of the wire feeder enters the low material level, the belt conveyor starts in sequence. When the discharging belt conveyor starts, the bottom belt and the roller of the wire storage equipment start, and the operating frequency is the set initial value.

[0101] (4) stepless speed change, obtaining the first negative pressure value collected by the first negative pressure measuring device and the second negative pressure value collected by the second negative pressure measuring device, and calculating the first wire feeding frequency corresponding to the bottom belt and the roller of the first hopper of the wire feeder and the second wire feeding frequency corresponding to the bottom belt and the roller of the second hopper of the wire feeder according to the first negative pressure value and the second negative pressure value, as the current operating frequency of the frequency converter of the wire feeder, and determining the target negative pressure value based on the first negative pressure value and the second negative pressure value, so as to determine the current operating frequency of the bottom belt and the roller of the wire storage device according to the target negative pressure value, if the material height information at the outlet of the wire storage device is measured to be within the set range, the machine is operated at the operating frequency to be used, and if the material height information exceeds the upper and lower limits, the frequency is changed until the material height information returns to the set range, and the frequency at the limit height is used as the target operating frequency;

[0102] (5) Automatic cabinet change. When the current wire storage equipment cabinet enters the "tail material" state, the target operating frequency of the current wire storage equipment is adjusted to the preset upper limit frequency. When the bottom belt frequency of the wire storage equipment increases to the preset upper limit frequency and the material height information is lower than the preset upper limit height, the wire storage equipment operates at the preset upper limit frequency. At the same time, the bottom belt and the roller of the next current wire storage equipment are started. The initial operating frequency is 0. Based on the limit height information and the preset upper limit height, the height information to be compensated is determined. Based on the height information to be compensated, the initial operating frequency of the next current wire storage equipment is determined, thereby stabilizing the material height information at the preset upper limit height. Until the current wire storage equipment enters the "empty material" state, the priority of the next current wire storage equipment automatically changes to the current wire storage equipment, and the cycle continues.

[0103] (6) Fault alarm: New "material break" and "material blockage" alarms are added to the system. The "material blockage" of the wire feeder is triggered by the outlet photoelectric switch, the "material break" of the wire feeder is triggered by the low material level photoelectric switch of the silo, and the "material break" and "material blockage" of the belt conveyor are triggered by the material height stack;

[0104] (7) Status switching: when the cigarette making machine stops feeding, the process section enters the "standby" state; when the equipment has a fault alarm, the process section enters the "hold" state; when the equipment switches to "local" or "manual", the automatic wire feeding ends; when the control system is powered off, the equipment enters the "stop" state.

[0105] The present invention utilizes negative pressure detection of the wind wire feeding pipeline, material height detection, and motor frequency control to realize automatic start and stop and dynamic parameter adjustment of the wire feeding system, solving the technical problems of high manual dependence, low accuracy in determining adjustment parameters, and unstable wire feeding flow when the automatic wire feeding system adjusts operating parameters. It realizes unmanned operation, reduces equipment failure rate, improves the stability of wire feeding flow, and has high promotion and application value.

[0106] Example 4

[0107] Figure 4 This is a schematic diagram of the structure of a control device for an automatic wire feeding system, provided in accordance with a fourth embodiment of the present invention. This device can execute the control method for an automatic wire feeding system provided in accordance with an embodiment of the present invention. The device includes a first device determination module 410, a negative pressure value determination module 420, a target parameter determination module 430, a target frequency determination module 440, and a system operation control module 450.

[0108] The first device determining module 410 is used to determine whether the current wire storage device is the first wire storage device during the operation of the automatic wire feeding system;

[0109] a negative pressure value determining module 420 configured to obtain a first negative pressure value collected by the first negative pressure measuring device and a second negative pressure value collected by the second negative pressure measuring device if the current wire storage device is the first wire storage device;

[0110] a target parameter determination module 430 for determining a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value based on the first negative pressure value and the second negative pressure value; wherein the target negative pressure value determines the operating frequency to be used of the current wire storage device;

[0111] a target frequency determination module 440 for determining a target operating frequency of the current wire storage device based on the operating frequency to be used and information on the height of the materials stacked on the belt conveyor;

[0112] The system operation control module 450 is used to control the operation of the automatic wire feeding system according to the first wire feeding frequency, the second wire feeding frequency and the target operation frequency.

[0113] Based on the above technical solutions, the first device determination module 410 includes:

[0114] A feeding time acquisition unit is used to obtain the target feeding time corresponding to the current wire storage device;

[0115] a time length to be compared obtaining unit, configured to determine, based on the coding information of the wire feeder, at least one wire storage device to be selected corresponding to the wire feeder, and obtain the feeding time length to be compared corresponding to each wire storage device to be selected;

[0116] The first device determination unit is used to determine that if the target feeding time is greater than the longest feeding time to be compared among the feeding times to be compared, then the current wire storage device is the first wire storage device.

[0117] Based on the above technical solutions, the target parameter determination module 430 includes:

[0118] a wire feeding frequency determining unit, configured to determine a first wire feeding frequency corresponding to the first silo and a second wire feeding frequency corresponding to the second silo based on the first negative pressure value, the second negative pressure value, and a preset correspondence between the negative pressure value of the single-side silo and the wire feeding frequency;

[0119] The target negative pressure determination unit is configured to determine a target negative pressure value based on the first negative pressure value and the second negative pressure value.

[0120] The frequency determination unit to be used is used to determine the operating frequency to be used of the current wire storage device based on the corresponding relationship between the target negative pressure value, the preset double-sided silo negative pressure value and the operating frequency of the wire storage device.

[0121] On the basis of the above technical solutions, the automatic wire feeding system further includes a distance meter arranged opposite to the belt conveyor, and the control device of the automatic wire feeding system further includes a material height determination module, and the material height determination module further includes:

[0122] A spacing information acquisition unit is used to acquire spacing information between the distance meter detection head and the material on the belt conveyor based on the distance meter acquisition;

[0123] A preset distance retrieving unit, used to retrieve the preset distance information between the rangefinder detection head and the belt conveyor;

[0124] The material height determination unit is used to determine the material height information based on the spacing information and the preset distance information.

[0125] Based on the above technical solutions, the target frequency determination module 440 includes:

[0126] The height information judgment unit is used to judge whether the material height information is between the preset upper limit height and the preset lower limit height; if so, the operating frequency to be used is the target operating frequency; if not, the target operating frequency of the current wire storage equipment is determined based on the material height information, the preset upper limit height and the preset lower limit height.

[0127] On the basis of the above technical solutions, the height information determination unit is further used to:

[0128] If the material height information exceeds the preset upper limit height, the operating frequency to be used is reduced. When the material height information is less than or equal to the upper limit height, the first current operating frequency corresponding to this time is determined as the target operating frequency;

[0129] If the material height information is lower than the preset lower limit height, the operating frequency to be used is increased; when the material height information is greater than or equal to the upper limit height, the corresponding second current operating frequency is determined to be the target operating frequency.

[0130] On the basis of the above technical solutions, the control device of the automatic wire feeding system also includes:

[0131] The next device determining unit is used to determine the next current wire storage device when it is detected that the current wire storage device is in the tailing state;

[0132] A limit height determination unit is used to adjust the target operating frequency of the current wire storage device to a preset upper limit frequency and determine the limit height information at this time;

[0133] An initial frequency determination unit is used to determine the height information to be compensated based on the limit height information and the preset upper limit height, so as to determine the initial operating frequency of the next current wire storage device based on the height information to be compensated;

[0134] The wire feeding system control unit is used to control the operation of the automatic wire feeding system according to the first wire feeding frequency, the second wire feeding frequency, the target operating frequency and the initial operating frequency.

[0135] Based on the above technical solutions, the control device of the automatic wire feeding system is also used to: when it is detected that the current wire storage device is updated from the tail material state to the empty material state, the next current wire storage device is used as the current wire storage device, and the execution is repeated to determine whether the current wire storage device is the first wire storage device.

[0136] Based on the above technical solutions, the control device of the automatic wire feeding system also includes an early warning signal determination module, which is used to issue a material blockage early warning signal when the material height information is greater than the preset upper limit height within a preset time length; and to issue a material breakage early warning signal when the material height information is less than the preset lower limit height within a preset time length.

[0137] The technical solution provided by an embodiment of the present invention determines whether the current wire storage device is the first wire storage device during the operation of an automatic wire feeding system. If so, it obtains a first negative pressure value collected by a first negative pressure measuring device and a second negative pressure value collected by a second negative pressure measuring device. Based on the first and second negative pressure values, it then determines a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value. The target negative pressure value determines the current wire storage device's pending operating frequency. Subsequently, based on the pending operating frequency and the material height information stacked on the belt conveyor, it determines the current wire storage device's target operating frequency. Furthermore, the automatic wire feeding system is controlled based on the first and second feeding frequencies and the target operating frequency. The technical solution provided by the present invention solves the technical problems of high manual reliance on operating parameter adjustment in automatic wire feeding systems, low parameter adjustment accuracy, and unstable wire feed flow. It enables automatic start-stop and dynamic parameter adjustment of the automatic wire feeding system, improves the accuracy of parameter adjustment, reduces equipment failure rate, and enhances the stability of wire feed flow.

[0138] The control device of the automatic wire feeding system provided in the embodiment of the present disclosure can execute the control method of the automatic wire feeding system provided in any embodiment of the present disclosure, and has the corresponding functional modules and beneficial effects of the execution method.

[0139] It is worth noting that the various units and modules included in the above-mentioned device are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the embodiments of the present disclosure.

[0140] Example 5

[0141] Figure 5 A structural diagram of an electronic device provided for embodiment five of the present invention. The electronic device 10 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 may 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 required herein.

[0142] like Figure 5As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by the at least one processor, and 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 to 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.

[0143] 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.

[0144] 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 control method applied to the automatic wire feeding system.

[0145] In some embodiments, the control method applied to the automatic wire feeding system can 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 can 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 control method applied to the automatic wire feeding system described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to execute the control method applied to the automatic wire feeding system in any other appropriate manner (for example, by means of firmware).

[0146] 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.

[0147] 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 controller for an automatic wire feeding system, such that when executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. 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.

[0148] 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.

[0149] 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).

[0150] 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.

[0151] A computing system may include a client and a server. The client and server are generally remote from each other and typically interact via a communication network. The client-server relationship is established by computer programs running on the respective computers and establishing a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, a host product within a cloud computing service system that addresses the management difficulties and poor scalability of traditional physical hosts and virtual private server (VPS) services. It should be understood that the various forms of the processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of the present disclosure are achieved. This is not intended to limit the scope of protection of the present disclosure. Those skilled in the art should understand 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 this disclosure are intended to be included within the scope of protection of this disclosure.

Claims

1. A control method for an automatic wire feeding system, the automatic wire feeding system comprising: A wire feeder, the wire feeder comprising a first silo and a second silo, at least one first pneumatic wire feeding pipe connected to the outlet end of the first silo, at least one second pneumatic wire feeding pipe connected to the outlet end of the second silo, a belt conveyor connected to the inlet end of the wire feeder, and at least one wire storage device connected to the belt conveyor, characterized in that the automatic wire feeding system further comprises: a first negative pressure measuring device deployed on the first pneumatic wire feeding pipe and a second negative pressure measuring device deployed on the second pneumatic wire feeding pipe, and the method comprises: During the operation of the automatic tobacco feeding system, determining whether the current tobacco storage device is the first tobacco storage device; wherein the first tobacco storage device is the tobacco storage device that first stores the tobacco when the tobacco is stored in the tobacco storage device from the previous process stage; If yes, obtaining a first negative pressure value collected by the first negative pressure measuring device and a second negative pressure value collected by the second negative pressure measuring device; Based on the first negative pressure value and the second negative pressure value, determining a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value; wherein the target negative pressure value determines the operating frequency to be used of the current wire storage device; Determining a target operating frequency of the current wire storage device based on the operating frequency to be used and information about the height of the materials stacked on the belt conveyor; controlling the operation of the automatic wire feeding system according to the first wire feeding frequency, the second wire feeding frequency and the target operating frequency; When it is detected that the current wire storage device is in a tailing state, determining the next current wire storage device; Adjusting the target operating frequency of the current wire storage device to a preset upper limit frequency, and determining the limit height information at this time; Based on the limit height information and the preset upper limit height, determining the height information to be compensated, so as to determine the initial operating frequency of the next current wire storage device based on the height information to be compensated; The operation of the automatic wire feeding system is controlled according to the first wire feeding frequency, the second wire feeding frequency, the target operating frequency and the initial operating frequency.

2. The method according to claim 1, characterized in that The determining whether the current wire storage device is the first wire storage device includes: Obtaining the target feeding time corresponding to the current wire storage device; Based on the coding information of the wire feeder, determining at least one wire storage device to be selected corresponding to the wire feeder, and obtaining the feeding time to be compared corresponding to each wire storage device to be selected; If the target feeding time is greater than the longest feeding time to be compared among the feeding time to be compared, the current wire storage device is the first wire storage device.

3. The method according to claim 1, characterized in that The determining, based on the first negative pressure value and the second negative pressure value, a first wire feeding frequency corresponding to the first silo, a second wire feeding frequency corresponding to the second silo, and a target negative pressure value includes: Determining a first wire feeding frequency corresponding to the first silo and a second wire feeding frequency corresponding to the second silo based on a correspondence between the first negative pressure value, the second negative pressure value, a preset single-side silo negative pressure value, and the wire feeding frequency; The target negative pressure value is determined based on the first negative pressure value and the second negative pressure value.

4. The method according to claim 1, wherein The target negative pressure value determines the current operating frequency of the wire storage device to be used, including: Based on the corresponding relationship between the target negative pressure value, the preset double-sided silo negative pressure value and the operating frequency of the wire storage equipment, the operating frequency to be used of the current wire storage equipment is determined.

5. The method according to claim 1, characterized in that The automatic wire feeding system further includes a distance meter disposed opposite to the belt conveyor, and the method further includes: Acquiring distance information between a detection head of a rangefinder and materials on a belt conveyor collected by the rangefinder; Retrieve the preset distance information between the distance meter detection head and the belt conveyor; The material height information is determined based on the spacing information and the preset distance information.

6. The method according to claim 1, characterized in that The step of determining the target operating frequency of the current wire storage device based on the operating frequency to be used and the height information of the materials stacked on the belt conveyor includes: Determine whether the material height information is between a preset upper limit height and a preset lower limit height; If yes, the operating frequency to be used is the target operating frequency; If not, the target operating frequency of the current wire storage device is determined according to the material height information, the preset upper limit height and the preset lower limit height.

7. The method according to claim 6, characterized in that The step of determining the target operating frequency of the current wire storage device according to the material height information, the preset upper limit height, and the preset lower limit height includes: If the material height information exceeds the preset upper limit height, the operating frequency to be used is reduced; when the material height information is less than or equal to the upper limit height, the first current operating frequency corresponding to this time is determined to be the target operating frequency; If the material height information is lower than the preset lower limit height, the operating frequency to be used is increased; when the material height information is greater than or equal to the upper limit height, the corresponding second current operating frequency is determined to be the target operating frequency.

8. The method according to claim 1, characterized in that Also includes: When it is detected that the current wire storage device is updated from the tail material state to the empty material state, the next current wire storage device is used as the current wire storage device, and the determination of whether the current wire storage device is the first wire storage device is repeated.

9. The method according to claim 1, characterized in that Also includes: When the material height information is greater than the preset upper limit height within the preset time, a material blockage warning signal is issued; When the material height information is less than the preset lower limit height within a preset time period, a material shortage warning signal is issued.

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