Feeding control method, device, equipment and medium of feeder

Abstract

The application discloses a kind of feeding control method, device, equipment and medium of feeder, belong to the technical field of feeder control.The control method includes: obtaining the actual feeding amount of feeder from the starting time of current period to current time, and the instantaneous amount of current period target feeding amount and current time belt scale;According to actual feeding amount and target feeding amount, determine the set target feeding amount;According to the difference between instantaneous amount and set target feeding amount, judge whether it needs to adjust the current frequency of feeder;If it needs to adjust the current frequency of feeder, then according to set target feeding amount and instantaneous amount, determine the target frequency of feeder after adjustment, and the current frequency of feeder is adjusted to target frequency.The method makes the deviation of total feeding amount of feeder current period and target feeding amount greatly reduce, improve the working efficiency of each period of feeder, improve the regulation and control effect.

Description

Technical Field

[0001] This invention relates to the field of feeder control technology, and in particular to a feeding control method, device, equipment and medium for a feeder. Background Technology

[0002] A feeder is used to uniformly or quantitatively supply materials from storage bins or other storage equipment to receiving equipment, and is an essential piece of equipment for implementing automated assembly line operations. By controlling the feeding of the feeder, the efficient and stable operation of the production line feeding system can be achieved.

[0003] In the prior art, the actual feeding time and the target feeding time of the feeder are compared to determine whether the feeder needs to be controlled to continue feeding. If the actual feeding time is less than the target feeding time, the feeder is controlled to continue feeding until the actual feeding time equals the target feeding time.

[0004] However, when a device in the feeding system malfunctions or other reasons cause the feeding to stop, the actual feeding time will also stop counting. After the fault is repaired, the feeder will start working again and the actual feeding time will continue to be calculated. The above method will result in low working efficiency of the feeder per unit time and poor control effect. Summary of the Invention

[0005] In view of the above problems, the present invention is proposed to provide a feeding control method, device, equipment and medium for a feeder that overcomes or at least partially solves the above problems. The method uses the feeding amount as the control target and updates a new target feeding amount based on the actual feeding situation of the feeder, i.e., the set target feeding amount. This allows for a more accurate determination of whether the current frequency of the feeder needs to be adjusted. If so, the feeder can be controlled to operate at the determined target frequency, thereby greatly reducing the deviation between the total feeding amount of the feeder in the current cycle and the target feeding amount, improving the working efficiency of the feeder in each cycle and improving the control effect.

[0006] In a first aspect, the present invention provides a feeding control method for a feeder, the control method comprising:

[0007] The actual feed rate of the feeder from the start time of the current cycle to the current time is obtained, as well as the target feed rate of the current cycle and the instantaneous amount of the belt scale at the current time.

[0008] Based on the actual feed rate and the target feed rate, adjust the target feed rate for the current cycle, and record the adjusted target feed rate as the determined target feed rate;

[0009] Obtain the instantaneous value of the belt scale;

[0010] Judge whether it is necessary to adjust the current frequency of the feeder according to the difference between the instantaneous quantity and the set target feeding quantity;

[0011] If it is necessary to adjust the current frequency of the feeder, determine the target frequency after adjustment of the feeder according to the set target feeding quantity and the instantaneous quantity, and adjust the current frequency of the feeder to the target frequency.

[0012] Optionally, adjusting the target feeding quantity of the current cycle according to the actual feeding quantity and the target feeding quantity, and recording the adjusted target feeding quantity as the determined set target feeding quantity includes:

[0013] Determine the set target feeding quantity through the following formula:

[0014]

[0015] Where, Qset represents the set target feeding quantity, Qtarget represents the target feeding quantity, Qactual represents the actual feeding quantity, t represents the duration of the current cycle, and tcurrent represents the duration from the start time to the current time of the current cycle.

[0016] Optionally, judging whether it is necessary to adjust the current frequency of the feeder according to the difference between the instantaneous quantity and the set target feeding quantity includes:

[0017] If the difference between the instantaneous quantity and the set target feeding quantity is greater than the first deviation threshold and less than the second deviation threshold, judge that it is not necessary to adjust the current frequency of the feeder;

[0018] When the difference is less than or equal to the first deviation threshold or greater than or equal to the second deviation threshold, judge that it is necessary to adjust the current frequency of the feeder.

[0019] Optionally, determining the target frequency after adjustment of the feeder according to the set target feeding quantity and the instantaneous quantity includes:

[0020] Determine the deviation rate between the instantaneous quantity and the set target feeding quantity;

[0021] Obtain a pre-set frequency modulation coefficient;

[0022] Determine the target frequency after adjustment of the feeder according to the deviation rate and the frequency modulation coefficient.

[0023] Optionally, determining the target frequency after adjustment of the feeder according to the deviation rate and the frequency modulation coefficient includes:

[0024] Determine the frequency change amount according to the deviation rate and the frequency modulation coefficient;

[0025] The target frequency is obtained by calculating the sum of the current frequency of the feeder and the frequency change.

[0026] Optionally, the control method further includes:

[0027] Obtain the upper limit value of the downstream belt load of the feeder receiving belt conveyor and the instantaneous amount of the downstream belt at the current moment;

[0028] Based on the instantaneous value of the downstream belt and the upper limit value of the downstream belt load, determine whether it is necessary to adjust the current upper limit value of the feeder frequency;

[0029] If it is necessary to adjust the current frequency upper limit value, then the current frequency upper limit value shall be adjusted according to the instantaneous value of the downstream belt and the upper limit value of the downstream belt load.

[0030] Optionally, determining whether to adjust the current frequency upper limit of the feeder based on the instantaneous value of the instantaneous quantity of the downstream belt and the upper limit value of the downstream belt load includes:

[0031] Determine the ratio of the instantaneous value of the downstream belt to the upper limit value of the downstream belt load;

[0032] If the ratio is less than or equal to the first ratio threshold or the ratio is greater than or equal to the second ratio threshold, it is determined that the current frequency upper limit of the feeder needs to be adjusted.

[0033] Secondly, the present invention provides a feeding control device for a feeder, the control device comprising:

[0034] The first acquisition module is used to acquire the actual feed amount of the feeder from the start time of the current cycle to the current time, as well as the target feed amount of the current cycle and the instantaneous amount of the belt scale at the current time;

[0035] The determining module is used to determine the target feed rate based on the actual feed rate and the target feed rate;

[0036] The first judgment module is used to determine whether the current frequency of the feeder needs to be adjusted based on the difference between the instantaneous quantity and the set target feed quantity.

[0037] The first adjustment module is used to determine the target frequency of the feeder after adjustment based on the set target feed amount and the instantaneous amount if the current frequency of the feeder needs to be adjusted, and to adjust the current frequency of the feeder to the target frequency.

[0038] Optionally, the determination module is used for:

[0039] The target feed rate is determined using the following formula:

[0040]

[0041] Among them, Q 整 Q represents the set target feed rate. 目 Q represents the target feed rate. 实 The actual feed rate is represented by t, and the duration of the current cycle is represented by t. 当 This indicates the duration from the start time of the current period to the current time.

[0042] Optionally, the first judgment module is used for:

[0043] If the difference between the instantaneous quantity and the set target feed quantity is greater than the first deviation threshold and less than the second deviation threshold, then it is determined that the current frequency of the feeder does not need to be adjusted.

[0044] If the difference is less than or equal to the first deviation threshold or greater than or equal to the second deviation threshold, it is determined that the current frequency of the feeder needs to be adjusted.

[0045] Optionally, the first adjustment module includes:

[0046] A deviation rate determination unit is used to determine the deviation rate between the instantaneous quantity and the set target feed quantity;

[0047] Frequency modulation coefficient acquisition unit, used to acquire the preset frequency modulation coefficient;

[0048] The target frequency determination unit is used to determine the adjusted target frequency of the feeder based on the deviation rate and the frequency modulation coefficient.

[0049] Optionally, the target frequency determination unit is used for:

[0050] The frequency change is determined based on the deviation rate and the frequency modulation coefficient;

[0051] The target frequency is obtained by calculating the sum of the current frequency of the feeder and the frequency change.

[0052] Optionally, the control device may further include:

[0053] The second acquisition module is used to acquire the upper limit value of the downstream belt load of the belt conveyor and the instantaneous amount of the downstream belt at the current moment;

[0054] The second judgment module is used to determine whether the current frequency upper limit of the feeder needs to be adjusted based on the instantaneous amount of the downstream belt and the upper limit value of the downstream belt load.

[0055] The second adjustment module is used to adjust the current frequency upper limit value according to the instantaneous amount of the downstream belt and the upper limit value of the downstream belt load if it is necessary to adjust the current frequency upper limit value.

[0056] Optionally, the second judgment module is used for:

[0057] Determine the ratio of the instantaneous quantity of the downstream belt to the upper limit value of the downstream belt load;

[0058] If the ratio is less than or equal to the first ratio threshold or the ratio is greater than or equal to the second ratio threshold, it is determined that the current frequency upper limit of the feeder needs to be adjusted.

[0059] Thirdly, the present invention provides an electronic device comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the control method as described in the first aspect.

[0060] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing the computer to perform the control method as described in the first aspect.

[0061] The technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0062] This invention provides a feeding control method, apparatus, equipment, and medium for a feeder. It can acquire the actual feeding amount of the feeder from the start of the current cycle to the current time, as well as the target feeding amount for the current cycle and the instantaneous amount of the belt scale at the current time. Based on the actual feeding amount and the target feeding amount, a set target feeding amount is determined, i.e., a new target feeding amount is updated based on the actual feeding situation of the feeder from the start of the cycle to the current time. Based on the difference between the acquired instantaneous amount of the belt scale and the set target feeding amount, it is determined whether the current frequency of the feeder needs to be adjusted. By adjusting the frequency of the feeder, the feeding speed of the feeder is adjusted. If the current frequency of the feeder needs to be adjusted, the adjusted target frequency of the feeder is determined based on the set target feeding amount and the instantaneous amount, and the current frequency of the feeder is adjusted to the target frequency so that the feeding speed of the feeder meets the requirements, thereby ensuring that the actual feeding amount of the feeder in each cycle meets the standard. This method uses the feed rate as the control target and updates a new target feed rate based on the actual feeding situation of the feeder, i.e., the set target feed rate. This allows for a more accurate determination of whether the current frequency of the feeder needs to be adjusted. If so, the feeder can be controlled to operate at the determined target frequency, which greatly reduces the deviation between the total feed rate of the feeder in the current cycle and the target feed rate, improves the working efficiency of the feeder in each cycle, and enhances the control effect.

[0063] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0064] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0065] Figure 1 This is a flowchart of a feeding control method for a feeder provided in an embodiment of the present invention;

[0066] Figure 2 This is a flowchart of a method for determining a target feed rate according to an embodiment of the present invention;

[0067] Figure 3 This is a structural block diagram of a feeding control device for a feeder provided in an embodiment of the present invention. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0069] First, a brief introduction to the application scenarios involved in the feeding control method of the feeder provided in the embodiments of the present invention:

[0070] In the daily management of the feeding system of the iron ore building materials production line in the water plant, the feeding rate is controlled on an hourly basis to ensure that the hourly efficiency target is met, thereby ensuring the efficient and stable operation of the entire system. Insufficient feeding rate from the feeder affects system efficiency, while excessive feeding rate will cause the system to overload and lead to system failure. Therefore, it is necessary to precisely control the feeding rate of the feeder during system operation to ensure the efficient and stable operation of the entire system.

[0071] In order to accurately control the total feeding amount, the existing feeding system compares the actual feeding time and the target feeding time of the feeder to determine whether the feeder needs to continue feeding. If the actual feeding time is less than the target feeding time, the feeder is controlled to continue feeding until the actual feeding time equals the target feeding time, so that the total feeding amount of the feeder meets the requirements.

[0072] However, during the production process, if the downstream silo is full and the system cuts off material, or if the downstream equipment is overloaded and limits the feeding amount, or if a piece of equipment in the feeding system malfunctions or other reasons cause the feeding to stop, the actual feeding time will also stop counting. After the system resumes operation, the feeder will start working again and the actual feeding time will continue to be calculated, resulting in a longer feeding time cycle. This method of using feeding time as the control target will result in low working efficiency of the feeder per unit time and poor control effect.

[0073] Therefore, in order to solve the above problems, this application provides a feeding control method for a feeder, which sets the feeding amount as the control target, and updates the new target feeding amount corresponding to the actual feeding situation in real time by adjusting the target feeding amount of the current cycle at the current moment. This allows for a more accurate determination of whether the current frequency of the feeder needs to be adjusted. If the current frequency of the feeder needs to be adjusted, the feeder can be controlled to operate at the determined target frequency, thereby greatly reducing the deviation between the total feeding amount of the feeder in the current cycle and the target feeding amount, improving the working efficiency of the feeder in each cycle, and improving the control effect.

[0074] Next, a brief introduction will be given to the implementation environment of the feeding control method of the feeder provided in the embodiments of the present invention.

[0075] The feeding system of the iron ore and building materials production line in the water plant consists of a feeder, belt conveyor, belt scale, host computer, and controller. The feeder is used to uniformly or quantitatively supply materials from storage silos or other storage equipment to the receiving equipment, and is an essential piece of equipment for automated assembly line operations. The belt conveyor transports the material fed by the feeder to the receiving equipment. The belt scale detects the weight of the material transported by the belt conveyor. The controller controls the operating frequency of the feeder and the operating speed of the belt conveyor, and acquires data detected by the belt scale, thereby managing the stable operation of the feeding system. The host computer is equipped with configuration software. Through the human-machine interface of the configuration software, the control parameters of the feeding system can be set, and the control results can be displayed in real time. The control references can include the target feed rate, the upper and lower limits of the feeder frequency, the control time interval, and the upper and lower limits of the belt conveyor load; the control results can include the current frequency of the feeder and the instantaneous value of the belt scale.

[0076] After introducing the application scenarios and implementation environments involved in the embodiments of the present invention, the feeding control method of the feeder provided in the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0077] Figure 1 This is a flowchart of a feeding control method for a feeder provided in an embodiment of the present invention, such as... Figure 1 As shown, the control method includes:

[0078] Step S110: Obtain the actual feed rate of the feeder from the start time of the current cycle to the current time, as well as the target feed rate of the current cycle and the instantaneous amount of the belt scale at the current time.

[0079] This can be understood as the feeder using the total feed amount per cycle as the control target to ensure that the feeding efficiency of each cycle meets the standard, thereby ensuring the efficient operation of the feeding system. The duration of each cycle can be set according to the actual situation of the feeding system; for example, each cycle may last one hour. The target feed amount is the total amount of material that the feeder needs to deliver in each cycle; it is a standard value that can be determined based on the feeder's historical operating data.

[0080] In this embodiment, the belt scale can be used to detect the instantaneous and cumulative amount of material transported by the belt. The instantaneous amount represents the amount of material transported per unit time, such as the weight of material passing through in one hour, and the unit can be t / h or kg / h. The cumulative amount represents the total amount of material transported by the belt scale from the time it was put into production until now.

[0081] The actual feed rate represents the amount of material that the feeder has delivered in the current cycle up to the current moment. The actual feed rate is obtained by obtaining the cumulative transport volume of the belt scale at the beginning of the current cycle and the cumulative transport volume at the current moment of the current cycle, and calculating the difference between the cumulative transport volume at the current moment and the cumulative transport volume at the beginning of the cycle.

[0082] For example, obtain the cumulative transport volume Q0 of the belt scale at time 0 of the current hour (starting time), and the cumulative transport volume Q at time t of the current hour (current time). t According to Q0 and Q t The difference is used to calculate the actual feed rate Q of the feeder. 实 Q 实 =Q t -Q0. Then obtain the target feed rate of the feeder per hour and the instantaneous amount detected by the belt scale at time t.

[0083] Step S120: Determine the target feed rate based on the actual feed rate and the target feed rate.

[0084] In this embodiment, to ensure the accuracy of the feed rate control, the target feed rate can be determined at set intervals within each cycle. Shorter intervals result in higher control accuracy, and the specific interval can be set according to actual conditions. Specifically, the time it takes for the material to move from the feeder outlet to the belt scale can be calculated based on the belt scale's installation location and operating speed. This time can then be used to determine the interval for determining the target feed rate. Alternatively, the interval can be set according to the actual conditions of the feeding system. For example, if the cycle is one hour, the interval can be set to one minute, meaning the target feed rate is determined every minute within each hour.

[0085] It should be noted that in order to determine the target feed rate every minute within an hour, the actual feed rate needs to be obtained every minute within an hour.

[0086] Optionally, step S120 includes:

[0087] The target feed rate is determined using the following formula:

[0088]

[0089] Among them, Q 整 Q represents the target feed rate. 目 Q represents the target feed rate. 实 This represents the actual feed rate, and t represents the duration of the current cycle. 当 This indicates the duration from the start of the current period to the current time.

[0090] Figure 2 This is a flowchart of a method for determining a target feed rate according to an embodiment of the present invention, as shown below. Figure 2 As shown, the target feed rate is determined through steps 210 to 240:

[0091] Step 210: Obtain the cumulative transport volume Q0 of the belt scale at time 0 of the current hour.

[0092] Step 220: Obtain the cumulative transport volume Q of the belt scale in the m-th minute of the current hour. t .

[0093] Step 230: Obtain the target feed rate Q of the feeder per hour. 目 .

[0094] Step 240, based on Q0, Q t and Q 目 The target feed rate Q is calculated using a formula. 整 The formula is as follows:

[0095]

[0096] Among them, t m This represents m minutes.

[0097] Step S130: Based on the difference between the instantaneous amount and the set target feed amount, determine whether it is necessary to adjust the current frequency of the feeder.

[0098] This can be understood as follows: if there is a deviation between the instantaneous quantity and the set target feed quantity, the current frequency of the feeder needs to be adjusted based on the magnitude of the deviation.

[0099] Optionally, step S130 includes:

[0100] If the difference between the instantaneous amount and the set target feed amount is greater than the first deviation threshold and less than the second deviation threshold, it is determined that the current frequency of the feeder does not need to be adjusted; if the difference is less than or equal to the first deviation threshold or greater than or equal to the second deviation threshold, it is determined that the current frequency of the feeder needs to be adjusted.

[0101] This can be understood as follows: if the difference between the instantaneous amount and the set target feed amount is greater than the first deviation threshold and less than the second deviation threshold, it indicates that the deviation is small and there is no need to adjust the current frequency of the feeder; if the difference is less than or equal to the first deviation threshold, it indicates that the actual feed amount is already large and the current frequency of the feeder needs to be reduced to slow down the feeder's feeding speed; if the difference is greater than or equal to the second deviation threshold, it indicates that the actual feed amount is small and the current frequency of the feeder needs to be increased to increase the feeder's feeding speed.

[0102] In this embodiment, the designer can set the values ​​of the first deviation threshold and the second deviation threshold based on the historical operating data of the feeding system. For example, the first deviation threshold is -5 and the second deviation threshold is 10.

[0103] Step S140: If it is necessary to adjust the current frequency of the feeder, determine the target frequency of the feeder after adjustment based on the set target feed amount and instantaneous amount, and adjust the current frequency of the feeder to the target frequency.

[0104] Optionally, step S140 includes:

[0105] The first step is to determine the deviation rate between the instantaneous amount and the set target feed amount.

[0106] In this embodiment, the deviation rate P is the instantaneous quantity Q. 瞬 With the set target feed rate Q 整 The difference between the set target feed rate Q and the target feed rate Q. 整 The percentage, i.e., P = (Q 瞬 -Q 整 ) / Q 整 *100%.

[0107] The second step is to obtain the preset frequency modulation coefficient.

[0108] In this embodiment, the frequency modulation coefficient may include an increase coefficient and a decrease coefficient. When it is necessary to increase the current frequency of the feeder, the increase coefficient is obtained; when it is necessary to decrease the current frequency of the feeder, the decrease coefficient is obtained.

[0109] The third step is to determine the target frequency of the feeder after adjustment based on the deviation rate and the frequency modulation coefficient.

[0110] Optional, the third step includes:

[0111] Based on the deviation rate and frequency modulation coefficient, determine the frequency change; calculate the sum of the current frequency of the feeder and the frequency change to obtain the target frequency.

[0112] In this embodiment, the frequency change can be obtained by calculating the product of the frequency modulation coefficient and the deviation rate.

[0113] Specifically, if the deviation rate is greater than 0, it means the instantaneous value is less than the set target feed rate, and the current frequency of the feeder needs to be increased. The product of the deviation rate and the frequency increase coefficient is calculated as the frequency change. The sum of the current frequency and the frequency change is then calculated to obtain the target frequency. If the deviation rate is less than 0, it means the instantaneous value is greater than the set target feed rate, and the current frequency of the feeder needs to be decreased. The product of the deviation rate and the frequency decrease coefficient is calculated as the frequency change. The sum of the current frequency and the frequency change is then calculated to obtain the target frequency.

[0114] The frequency increase factor is set to a negative number so that the increase in frequency change is a positive number; the frequency decrease factor is also set to a negative number so that the decrease in frequency change is a negative number. Thus, the current frequency will automatically increase or decrease only when the frequency change is added to the current frequency.

[0115] In this embodiment, after determining the target frequency, the control method further includes:

[0116] The first step is to obtain the upper and lower frequency limits of the feeder.

[0117] The second step is to compare the target frequency with the current frequency if the target frequency is greater than the current frequency, and control the feeder to run at the lower frequency of the two. If the target frequency is less than the current frequency, compare the target frequency with the lower frequency, and control the feeder to run at the higher frequency of the two.

[0118] This can be understood as controlling the adjusted feeder frequency between its upper and lower limits to prevent the feeder from overloading or becoming inefficient. Simultaneously, it prevents the feeder frequency from being too high, which could cause the downstream belt in the conveyor to overload, affecting equipment safety and lifespan.

[0119] Optionally, the control method further includes:

[0120] The first step is to obtain the upper limit of the downstream belt load and the instantaneous load of the downstream belt at the current moment.

[0121] This can be understood as a belt conveyor including an upstream belt and a downstream belt.

[0122] It should be noted that when the belt conveyor includes an upstream belt and a downstream belt, the instantaneous quantity of the belt scale in step S110 can be the instantaneous quantity of the upstream belt measured by the belt scale.

[0123] The second step is to determine whether the current frequency limit of the feeder needs to be adjusted based on the instantaneous volume of the downstream belt and the upper limit of the downstream belt load.

[0124] Optional, the second step includes:

[0125] Determine the ratio of the instantaneous quantity of the downstream belt to the upper limit of the downstream belt load; if the ratio is less than or equal to the first ratio threshold or greater than or equal to the second ratio threshold, then it is determined that the current upper limit of the feeder frequency needs to be adjusted.

[0126] This can be understood as follows: if the ratio is less than or equal to the first ratio threshold, it means that the current load on the downstream belt is high, and the current upper limit of the feeder's frequency needs to be reduced to reduce the load on the downstream belt; if the ratio is greater than or equal to the second ratio threshold, it means that the current downstream belt is not overloaded, and the current upper limit of the feeder's frequency needs to be restored, that is, the current upper limit of the frequency needs to be increased.

[0127] Third step: If it is necessary to adjust the current frequency upper limit value, adjust the current frequency upper limit value according to the instantaneous quantity of the downstream belt and the upper limit value of the downstream belt load.

[0128] In this embodiment, the adjusted upper limit of frequency can be determined by the ratio of the instantaneous amount of the downstream belt to the upper limit of the downstream belt load, as well as the current upper limit of frequency.

[0129] Specifically, if the ratio is less than or equal to the first ratio threshold, the product of the ratio and the upper frequency limit can be calculated to obtain the adjusted upper frequency limit. If the ratio is greater than or equal to the second ratio threshold, the product of the ratio, the upper frequency limit, and the correction coefficient can be calculated to obtain the adjusted upper frequency limit. The correction coefficient can be correlated with the second ratio threshold.

[0130] In addition, if the ratio is greater than the first ratio threshold and less than the second ratio threshold, then there is no need to adjust the current frequency upper limit.

[0131] For example, the first ratio threshold is 1, the second ratio threshold is 1.05, and the corresponding correction coefficient is 0.95. Based on the calculation method, it can be deduced that when the ratio δ is less than or equal to 1, the adjusted upper frequency limit is δ * the current upper frequency limit; when the ratio δ is greater than or equal to 1.05, the adjusted upper frequency limit is δ * 0.95 * the current upper frequency limit; and when the ratio δ is greater than 1 and less than 1.05, the adjusted upper frequency limit is equal to the current upper frequency limit.

[0132] In this embodiment, after determining the adjusted upper frequency limit, the control method further includes:

[0133] Determine whether the adjusted upper frequency limit is greater than or equal to the upper frequency limit threshold; if yes, adjust the current upper frequency limit to the upper frequency limit threshold; if no, compare the adjusted upper frequency limit with the lower frequency limit threshold, and adjust the current upper frequency limit to the larger of the two frequencies.

[0134] This can be understood as the adjusted upper frequency limit being kept between the upper and lower frequency thresholds, ensuring that the downstream belts do not operate under overload while also maintaining the equipment's working efficiency.

[0135] In this embodiment, the adjustment cycle for adjusting the current upper limit of the feeder frequency can be determined based on the time it takes for the material to move from the feeder outlet to the belt scale on the downstream conveyor. When the adjustment cycle is reached, the current upper limit of the frequency is adjusted once.

[0136] Based on the same inventive concept, embodiments of the present invention also provide a feeding control device for a feeder. Figure 3 This is a structural block diagram of a feeding control device for a feeder provided in an embodiment of the present invention, as shown below. Figure 3 As shown, the control device 300 includes a first acquisition module 310, a determination module 320, a first judgment module 330, and a first adjustment module 340.

[0137] The first acquisition module 310 is used to acquire the actual feed amount of the feeder from the start time of the current cycle to the current time, as well as the target feed amount of the current cycle and the instantaneous amount of the belt scale at the current time;

[0138] The determination module 320 is used to determine the target feed rate based on the actual feed rate and the target feed rate;

[0139] The first judgment module 330 is used to determine whether the current frequency of the feeder needs to be adjusted based on the difference between the instantaneous quantity and the set target feed quantity.

[0140] The first adjustment module 340 is used to determine the target frequency of the feeder after adjustment based on the set target feed amount and instantaneous amount if the current frequency of the feeder needs to be adjusted, and to adjust the current frequency of the feeder to the target frequency.

[0141] Optionally, the determination module 320 is used for:

[0142] The target feed rate is determined using the following formula:

[0143]

[0144] Among them, Q 整 Q represents the target feed rate. 目 Q represents the target feed rate. 实 This represents the actual feed rate, and t represents the duration of the current cycle. 当 This indicates the duration from the start of the current period to the current time.

[0145] Optionally, the first judgment module 330 is used for:

[0146] If the difference between the instantaneous amount and the set target feed amount is greater than the first deviation threshold and less than the second deviation threshold, it is determined that the current frequency of the feeder does not need to be adjusted.

[0147] If the difference is less than or equal to the first deviation threshold or greater than or equal to the second deviation threshold, it is determined that the current frequency of the feeder needs to be adjusted.

[0148] Optionally, the first adjustment module 340 includes:

[0149] The deviation rate determination unit is used to determine the deviation rate between the instantaneous amount and the set target feed amount;

[0150] Frequency modulation coefficient acquisition unit, used to acquire the preset frequency modulation coefficient;

[0151] The target frequency determination unit is used to determine the adjusted target frequency of the feeder based on the deviation rate and the frequency modulation coefficient.

[0152] Optionally, the target frequency determination unit is used for:

[0153] The frequency change is determined based on the deviation rate and the modulation coefficient.

[0154] The target frequency is obtained by calculating the sum of the current frequency and the frequency change of the feeder.

[0155] Optionally, the control device 300 further includes:

[0156] The second acquisition module is used to acquire the upper limit value of the downstream belt load of the belt conveyor and the instantaneous amount of the downstream belt at the current moment;

[0157] The second judgment module is used to determine whether the current frequency upper limit of the feeder needs to be adjusted based on the instantaneous amount of the downstream belt and the upper limit value of the downstream belt load.

[0158] The second adjustment module is used to adjust the current frequency upper limit value based on the instantaneous quantity of the downstream belt and the upper limit value of the downstream belt load if it is necessary to adjust the current frequency upper limit value.

[0159] Optionally, the second judgment module is used for:

[0160] Determine the ratio of the instantaneous quantity of the downstream belt to the upper limit of the downstream belt load;

[0161] If the ratio is less than or equal to the first ratio threshold or greater than or equal to the second ratio threshold, it is determined that the current upper limit of the feeder frequency needs to be adjusted.

[0162] It is understood that the device provided in the above embodiments is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0163] This invention also provides an electronic device that may include a processor and a memory, wherein the processor and the memory may be interconnected via a bus or other means.

[0164] The processor may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0165] Memory may include mass storage for data or instructions. For example, and not limitingly, memory may include hard disk drives (HDDs), floppy disk drives, flash memory, optical disks, magneto-optical disks, magnetic tape, or Universal Serial Bus (USB) drives, or combinations of two or more of these. Where appropriate, memory may include removable or non-removable (or fixed) media. Where appropriate, memory may be internal or external to an electronic device. In a particular embodiment, memory may be non-volatile solid-state memory.

[0166] In one instance, the memory may be read-only memory (ROM). In one instance, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0167] The processor reads and executes computer program instructions stored in the memory to implement any of the feeding control methods of the feeder in the above embodiments.

[0168] In one example, the electronic device may further include a communication interface and a bus. The processor, memory, and communication interface are connected via the bus to communicate with each other. The communication interface is primarily used to enable communication between the various modules, devices, units, and / or equipment in the embodiments of this application. Where appropriate, the bus may include one or more buses.

[0169] Furthermore, in conjunction with the feeding control method of the feeder in the above embodiments, this invention can be implemented using a computer-readable storage medium. This computer-readable storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the feeding control methods of the feeder in the above embodiments.

[0170] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0171] This invention provides a feeding control method, apparatus, equipment, and medium for a feeder. It can acquire the actual feeding amount of the feeder from the start of the current cycle to the current moment, as well as the target feeding amount for the current cycle and the instantaneous amount of the belt scale at the current moment. Based on the actual feeding amount and the target feeding amount, a set target feeding amount is determined, i.e., a new target feeding amount is updated based on the actual feeding situation of the feeder from the start of the cycle to the current moment. Based on the difference between the acquired instantaneous amount of the belt scale and the set target feeding amount, it is determined whether the current frequency of the feeder needs to be adjusted. By adjusting the frequency of the feeder, the feeding speed of the feeder is adjusted. If the current frequency of the feeder needs to be adjusted, the adjusted target frequency of the feeder is determined based on the set target feeding amount and the instantaneous amount, and the current frequency of the feeder is adjusted to the target frequency so that the feeding speed of the feeder meets the requirements, thereby ensuring that the actual feeding amount of the feeder in each cycle meets the standard. This method uses the feed rate as the control target and updates a new target feed rate based on the actual feeding situation of the feeder, i.e., the set target feed rate. This allows for a more accurate determination of whether the current frequency of the feeder needs to be adjusted. If so, the feeder can be controlled to operate at the determined target frequency, which greatly reduces the deviation between the total feed rate of the feeder in the current cycle and the target feed rate, improves the working efficiency of the feeder in each cycle, and enhances the control effect.

[0172] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0173] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, wherein each claim itself is a separate embodiment of the invention.

[0174] It should be noted that the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

Claims

1. A feeding control method for a feeder, characterized in that, The control method includes: The actual feed rate of the feeder from the start time of the current cycle to the current time is obtained, as well as the target feed rate of the current cycle and the instantaneous amount of the belt scale at the current time. The target feed rate is determined based on the actual feed rate and the target feed rate; the target feed rate is the updated target feed rate. Based on the difference between the instantaneous quantity and the set target feed quantity, determine whether it is necessary to adjust the current frequency of the feeder; If it is necessary to adjust the current frequency of the feeder, then the target frequency of the feeder after adjustment is determined according to the set target feed amount and the instantaneous amount, and the current frequency of the feeder is adjusted to the target frequency; The step of determining the target feed rate based on the actual feed rate and the target feed rate includes: The target feed rate is determined using the following formula: Q 整 = ； Among them, Q 整 Q represents the set target feed rate. 目 Q represents the target feed rate. 实 The actual feed rate is represented by t, and the duration of the current cycle is represented by t. 当 This indicates the duration from the start time of the current period to the current time. The control method further includes: Obtain the upper limit value of the downstream belt load of the belt conveyor and the instantaneous amount of the downstream belt at the current moment; Based on the instantaneous volume of the downstream belt and the upper limit of the downstream belt load, determine whether it is necessary to adjust the current upper limit of the feeder frequency. If it is necessary to adjust the current frequency upper limit value, then adjust the current frequency upper limit value according to the instantaneous quantity of the downstream belt and the upper limit value of the downstream belt load; The step of determining whether to adjust the current frequency limit of the feeder based on the instantaneous amount of the downstream belt and the upper limit of the downstream belt load includes: Determine the ratio of the instantaneous quantity of the downstream belt to the upper limit value of the downstream belt load; If the ratio is less than or equal to the first ratio threshold or the ratio is greater than or equal to the second ratio threshold, it is determined that the current frequency upper limit of the feeder needs to be adjusted.

2. The feeding control method for the feeder according to claim 1, characterized in that, The step of determining whether the current frequency of the feeder needs to be adjusted based on the difference between the instantaneous quantity and the set target feed quantity includes: If the difference between the instantaneous quantity and the set target feed quantity is greater than the first deviation threshold and less than the second deviation threshold, then it is determined that the current frequency of the feeder does not need to be adjusted. If the difference is less than or equal to the first deviation threshold or greater than or equal to the second deviation threshold, it is determined that the current frequency of the feeder needs to be adjusted.

3. The feeding control method for the feeder according to claim 1, characterized in that, The step of determining the adjusted target frequency of the feeder based on the set target feed rate and the instantaneous quantity includes: Determine the deviation rate between the instantaneous quantity and the set target feed quantity; Obtain the preset frequency modulation coefficient; The target frequency of the feeder after adjustment is determined based on the deviation rate and the frequency modulation coefficient.

4. The feeding control method for the feeder according to claim 3, characterized in that, Determining the target frequency of the feeder after adjustment based on the deviation rate and the frequency modulation coefficient includes: The frequency change is determined based on the deviation rate and the frequency modulation coefficient; The target frequency is obtained by calculating the sum of the current frequency of the feeder and the frequency change.

5. A feeding control device for a feeder, characterized in that, The control device includes: The first acquisition module is used to acquire the actual feed amount of the feeder from the start time of the current cycle to the current time, as well as the target feed amount of the current cycle and the instantaneous amount of the belt scale at the current time; The determining module is used to determine the set target feed rate based on the actual feed rate and the target feed rate; the set target feed rate is the updated new target feed rate; The first judgment module is used to determine whether the current frequency of the feeder needs to be adjusted based on the difference between the instantaneous quantity and the set target feed quantity. The first adjustment module is used to determine the target frequency of the feeder after adjustment based on the set target feed amount and the instantaneous amount if the current frequency of the feeder needs to be adjusted, and to adjust the current frequency of the feeder to the target frequency. The step of determining the target feed rate based on the actual feed rate and the target feed rate includes: The target feed rate is determined using the following formula: Q 整 = ； Among them, Q 整 Q represents the set target feed rate. 目 Q represents the target feed rate. 实 The actual feed rate is represented by t, and the duration of the current cycle is represented by t. 当 This indicates the duration from the start time of the current period to the current time. The control device further includes: The second acquisition module is used to acquire the upper limit value of the downstream belt load of the belt conveyor and the instantaneous amount of the downstream belt at the current moment; The second judgment module is used to determine whether the current frequency upper limit of the feeder needs to be adjusted based on the instantaneous amount of the downstream belt and the upper limit value of the downstream belt load. The second adjustment module is used to adjust the current frequency upper limit value according to the instantaneous quantity of the downstream belt and the upper limit value of the downstream belt load if it is necessary to adjust the current frequency upper limit value. The second judgment module is also used for: Determine the ratio of the instantaneous quantity of the downstream belt to the upper limit of the downstream belt load; If the ratio is less than or equal to the first ratio threshold or greater than or equal to the second ratio threshold, it is determined that the current upper limit of the feeder frequency needs to be adjusted.

6. An electronic device, characterized in that, include: A memory and a processor are communicatively connected, the memory stores computer instructions, and the processor executes the control method of any one of claims 1-4 by executing the computer instructions.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the control method according to any one of claims 1-4.

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