Feeding control system for garment production

Abstract

The invention relates to the technical field of material supply equipment control, in particular to a material supply control system for garment production, which is characterized in that a first processing end is used for averaging a reference speed to obtain an initial material supply speed, and then a second processing end is used for combining a real-time speed of a target person with a product quality score to obtain an initial material supply speed; the method comprises the following steps: obtaining a comprehensive relational expression of product mass fractions of comprehensive target personnel about the working rate, then calculating information in work arrangement of the day to obtain an inequality of a production target yield about the optimal feeding rate, and then combining the inequality with a curve of the comprehensive relational expression to obtain an optimal feeding rate; according to the method, the initial feeding speed and the optimal feeding speed are processed, the optimal feeding speed is obtained according to the processing result, then the initial feeding speed is replaced by the optimal feeding speed through a feeding control end according to the initial feeding speed and the optimal feeding speed, feeding equipment is controlled, the feeding equipment can more accurately recognize the state of a worker on the current day, the feeding speed is adjusted in real time, and the feeding efficiency is improved. And the garment production efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of feeding equipment control, and in particular to a feeding control system for clothing production. Background Art

[0002] Early clothing production and material supply mainly relied on manual operations, which resulted in problems such as low efficiency, high error rate and waste of resources.

[0003] Prior art CN112758633A discloses a feeding control method, feeding control device, feeding system, and storage medium, including: obtaining the interval time corresponding to when the target material and the previous material are located at a preset position on a fixed-speed conveyor belt; when the target material is located on a variable-speed conveyor belt, controlling the transmission speed of the variable-speed conveyor belt based on the interval time and a reference time. By detecting the interval time between adjacent materials arriving at the preset position, it is possible to determine whether there is a time error in the feeding process. If a time error occurs in the feeding process, the material with the time error is located on the variable-speed conveyor belt, and the time error is compensated by changing the transmission speed of the variable-speed conveyor belt.

[0004] However, in the clothing production process, there are still some processing steps that require the integration of man and machine production. However, during the work process, due to the proficiency of the personnel and the changes in the staff, the daily processing speed is inconsistent. However, since the feeding speed of the feeding equipment is the set data, the feeding speed will not match the manual working speed, thereby reducing production efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a feeding control system for clothing production.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A feeding control system for clothing production, comprising a position sensing end, a first processing end, a node detection end, a work quality verification end, a second processing end, and a feeding control end;

[0008] The position sensing terminal is used to identify the IC card of the staff within a preset distance, and take the midpoint between adjacent IC cards as the endpoint, and mark the area between the two adjacent endpoints as the working area;

[0009] The first processing end is used to mark the worker corresponding to the work information of the IC card identified by the position sensing end as the initial online worker, extract the reference speed from the work information of the initial online worker, perform average processing on the reference speed to obtain the initial feeding speed, and store the work information in the chip of the IC card;

[0010] The node detection terminal is used to detect the work rate of the initial online personnel in the work area and obtain the real-time rate of the personnel;

[0011] The work quality verification terminal is used to compare the processed product with the standard product and obtain the product quality score based on the comparison results;

[0012] The second processing end is used to combine the real-time rate of the target personnel with the product quality score to obtain a linear algebraic expression of the product quality score of a single staff member with respect to the real-time rate. Then, the algebraic curves of the linear algebraic expressions of all staff members are combined to obtain a comprehensive relationship between the product quality score of the comprehensive target personnel and the work rate. Then, all staff members in the work schedule for the day and their working hours and the production target output for the day are calculated to obtain an inequality between the production target output and the optimal feeding rate. Then, the inequality and the curve of the comprehensive relationship are combined and processed, and the optimal feeding rate is obtained based on the processing results.

[0013] The feeding control end is used to first control the feeding equipment according to the initial feeding speed. When the feeding control end receives the optimal feeding rate, it replaces the initial feeding speed with the optimal feeding rate and controls the feeding equipment.

[0014] As a further solution of the present invention, a method for obtaining the working area is:

[0015] When the feeding equipment is initially started, it recognizes the IC card within the preset distance. When the IC card is recognized, the working information in the IC card is obtained. The preset distance is the threshold;

[0016] Get the number of IC card detections within the preset distance. When the detection number is 0, an unmanned signal will be generated. When the detection number is 1, the area where the feeding equipment is located will be marked as the working area of ​​this staff member. When the detection number is greater than 1, get the distance between adjacent IC cards, take the midpoint of the distance between adjacent IC cards, and mark it as the endpoint. At the same time, mark the two ends of the area where the feeding equipment is located as endpoints. At this time, the area between the two adjacent endpoints is marked as the working area, where there is only one IC card in each working area.

[0017] As a further solution of the present invention, work information is collected by a personnel information collection terminal, and the work information includes name, work number, age and benchmark speed. The benchmark speed refers to the average work speed of the staff in the previous cycle time, and the cycle time is the threshold.

[0018] As a further solution of the present invention, the method for obtaining the initial feeding speed is:

[0019] First, the initial online personnel are checked against the staff scheduled for the day. If the checked information is consistent, a processing signal is generated. If the checked information is inconsistent, a personnel abnormality signal is generated.

[0020] When the processing signal is generated, the reference speed VGi of the initial personnel on the line is obtained, where i = 1, 2, ..., n, indicating that there are n initial personnel on the line at this time;

[0021] use The initial feeding speed VLc is obtained, a1 is the cooperation coefficient, and when n=1, a1=1.

[0022] As a further solution of the present invention, a method for obtaining the real-time rate is:

[0023] Select any work area as the target area and time the interval between picking up and putting down a single item in the target area. The interval between picking up and putting down a single item refers to the time it takes for staff in the target area to pick up and put down a single item.

[0024] Get the average of the intervals between the pick-up and placement of N consecutive items and mark it as the real-time rate of the worker during this period, where N is the threshold.

[0025] As a further solution of the present invention, the method for obtaining the comprehensive relationship is:

[0026] Mark all personnel in all work areas as target personnel in turn, extract the real-time rate and product quality score of the target personnel in multiple time periods of the day, and associate the product quality score with the real-time rate. At this time, each product has a corresponding product quality score and real-time rate;

[0027] The mathematical model is used for linear fitting to obtain the linear algebraic formula between the target personnel's product quality score and the real-time rate: Hi = a2×e -λvi +C, vi is the real-time rate of target person i, Hi is the product quality score of target person i, a2 is the standard score, λ is the proportional coefficient, and C is the constant coefficient;

[0028] The linear algebraic curves of all target personnel i are processed comprehensively to form a curve of the comprehensive target personnel product quality score with respect to the work rate, and it is marked as the comprehensive relationship Hz = A × e -θ×v +C1, Hz is the comprehensive quality fraction, θ is the comprehensive proportional coefficient, C1 is the comprehensive coefficient, A=a2 is the standard fraction, and v is the comprehensive rate.

[0029] As a further solution of the present invention, the method for obtaining the optimal feeding rate is:

[0030] Obtain the production target output CL, all staff members and their working hours in the work schedule for the day using formula G1: Vz is the optimal feeding rate, bj is the number of staff, tj is the working hours of the day, j is the working hours of the staff, including full-day and half-day. When tj is the full-day working hours, bj is the number of full-day staff. When tj is the half-day working hours, bj is the number of half-day staff. a3 is the influence coefficient.

[0031] Combine the comprehensive relationship with formula G1 to calculate the optimal value of the working rate and obtain the optimal feeding rate Vz.

[0032] As a further solution of the present invention, the daily work schedule is obtained by the operation information acquisition end and transmitted to the second processing end. The daily work schedule includes the staff arranged for each process, their working hours and the production target output for the day. The working hours include full-day work and hourly work. The full-day work system means that the staff are fully present on the day. When the staff's leave time is less than one day, their working hours are hourly.

[0033] As a further solution of the present invention, it is characterized in that it also includes a display terminal for receiving personnel abnormality signals and no-man signals, then generating sound and light reminder information for the received signals, and transmitting them to relevant management personnel, who further confirm the personnel abnormality signals and no-man signals.

[0034] Compared with the existing technology, the advantages of the present invention are:

[0035] The present invention sets an IC card and stores the work information of the staff in the IC card. Then, the position sensing end identifies the IC card within a preset distance, obtains the work information in the IC card, extracts the reference speed in the work information, processes the reference speed, and thus obtains the initial feeding speed of the feeding device. The feeding control end controls the feeding device according to the initial feeding speed, thereby enabling the device to be controlled according to the work rate of the staff on that day, so that the device can adapt to the human working speed during initial operation, thereby improving the consistency of the human and machine working speeds.

[0036] The present invention divides the work area according to the position of the identified IC card, detects the real-time speed and product quality score of the personnel in the work area, and combines the product quality score with the real-time speed by the second processing end to obtain a comprehensive relationship. Based on the curve of the comprehensive relationship, the curve of the comprehensive relationship is combined with the daily output to calculate the optimal feeding rate. Then, the feeding control end replaces the initial feeding rate with the optimal feeding rate and controls the feeding equipment, so that the feeding equipment can more accurately identify the status of the staff on that day and adjust the feeding speed in real time, thereby further improving the efficiency of clothing production. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the system structure of the present invention. DETAILED DESCRIPTION

[0038] 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Reference Figure 1 , a feeding control system for clothing production, including a personnel information collection terminal, an operation information acquisition terminal, a position sensing terminal, a first processing terminal, a node detection terminal, a work quality verification terminal, a second processing terminal, a feeding control terminal and a display terminal;

[0040] The personnel information collection terminal is used to collect the work information of the staff in the garment production, including name, work number, age, and benchmark speed. The benchmark speed refers to the average work speed of the staff in the previous cycle time. The cycle time is a threshold, and in this embodiment, the cycle time is set to one week. The personnel information collection terminal then transmits the work information of the staff to the staff's IC card.

[0041] It should be further explained that, in this embodiment, after entering the work area, the staff are required to wear a dedicated IC card. Here, the IC card refers to a work card in this embodiment, and the integrated chip of the work card only stores the staff's work information. The purpose of setting the work card is to enable the equipment to identify the staff's work location and then detect the working speed in this work area.

[0042] The operation information acquisition terminal is used to arrange the work for the day, including the staff arranged for each process, their working hours and the production target output for the day, and then transmit the work arrangement for the day to the second processing terminal;

[0043] It should be noted that the working hours of staff here include full-day working system and hourly working system. Full-day working system means that the staff is fully present on the day, but the staff may take leave during the work process. If the staff's leave is for the whole day, then the staff's work information will not appear in the work schedule for that day. However, if the staff's leave is less than one day, their working hours will be based on the hourly system. In addition, the working rate of the process will change when the staff is on duty or not, and the feeding speed of the feeding equipment will be adjusted accordingly. At the same time, in a garment production process, one or more staff members may be assigned to complete the process.

[0044] The position sensor is used to identify the staff's IC card and set the staff's work area according to the location of the IC card. The specific method of setting the work area is as follows:

[0045] When the feeding equipment is started, the IC card is detected within a preset distance. When the IC card is detected, the working information in the IC card is obtained. The preset distance is the threshold, and its specific value is set by professional technicians in this field;

[0046] First, obtain the number of IC cards detected within the preset distance. When the number of detections is 0, an unmanned signal will be generated and transmitted to the display terminal. When the number of detections is 1, the area where the feeding equipment is located is marked as the work area of ​​this staff member. When the number of detections is greater than 1, obtain the distance between adjacent IC cards, take the midpoint of the distance between adjacent IC cards, and mark the midpoint as the endpoint. At the same time, mark the two ends of the area where the feeding equipment is located as two endpoints. At this time, the area between the two adjacent endpoints is marked as the work area, where there is only one IC card in each work area.

[0047] The position sensing end then transmits the identified IC card and working information to the first processing end, and simultaneously transmits the working area to the node detection end;

[0048] The first processing end is used to set the initial feeding speed according to the baseline speed of the initial online personnel and transmit the initial feeding speed to the feeding control end. The specific setting method of the initial feeding speed is as follows:

[0049] First, the staff member corresponding to the work information of the IC card identified by the position sensor is marked as the initial online staff member, and the initial online staff member is first checked with the staff member scheduled for work on that day. When the checked information is consistent, a processing signal is generated. When the checked information is inconsistent, a staff abnormality signal is generated and transmitted to the display terminal. The display terminal notifies the corresponding management personnel to manually check the staff member;

[0050] When the processing signal is detected in the first processing terminal, the reference speed of the initial online personnel is obtained and marked as VGi, where i = 1, 2, ..., n, indicating that there are n initial online personnel at this time;

[0051] use The initial feeding speed VLc is obtained, a1 is the cooperation coefficient, and when n=1, a1=1, when n>1, a1 is set by technicians in this field according to the specific number n of initial online personnel;

[0052] The feeding control terminal controls the feeding equipment within the initial start-up time based on the initial feeding speed;

[0053] The node detection end is used to detect the working rate in the working area, generate a real-time rate, and transmit the real-time working rate to the second processing end. The specific method of generating the real-time rate is:

[0054] A work area is selected as the target area, and the interval time of picking up and putting down a single item in the target area is counted. The interval time of picking up and putting down a single item refers to the time it takes for the staff in the target area to pick up and put down a single item. For example, there are multiple semi-finished garments on the feeding equipment, and the staff in the target area are inspecting the semi-finished garments. When the staff picks up a semi-finished garment, the timing starts. When the semi-finished garment is processed and the staff starts to pick up the next semi-finished garment, the timing ends. At this time, the time in between is the interval time of picking up and putting down a single item;

[0055] Get the average of the intervals between the pick-up and placement of N consecutive items and mark it as the real-time rate of the worker during this period, where N is the threshold.

[0056] The work quality verification terminal is used to verify the quality of the product by comparing the processed product with the standard product and scoring the quality of the processed product using an objective quality evaluation method to obtain a product quality score. The objective quality evaluation method in this embodiment uses a structural similarity index processing method. The structural similarity index processing method is a prior art and will not be described in detail here. The work quality verification terminal then transmits the product quality score to the second processing terminal.

[0057] The second processing end is used to combine the product quality score with the real-time rate to obtain a comprehensive relationship. Based on the curve of the comprehensive relationship, the curve of the comprehensive relationship is combined with the daily output to calculate the optimal feeding rate. The second processing end then transmits the optimal feeding rate to the feeding control end. The specific method for obtaining the optimal feeding rate is as follows:

[0058] S1: Select a person in any work area and mark them as a target person. Extract the real-time rate and product quality score of the target person for multiple time periods on the same day. First, map the product quality score to the real-time rate one by one. At this point, each product has a corresponding product quality score and real-time rate. In this example, the product refers to semi-finished garment processing products.

[0059] S2: Take the real-time rate as the independent variable and the product quality score as the dependent variable, and use the mathematical model for linear fitting to obtain the linear algebraic formula between the product quality score of the target personnel and the real-time rate: Hi = a2 × e -λvi + C, vi is the real-time rate of target person i, Hi is the product quality score of target person i, a2 is the standard score, λ is the proportional coefficient, C is the constant coefficient, and the mathematical model used in this embodiment is Matlab;

[0060] S3: Mark the remaining staff members as target staff members, and perform calculations according to the above steps S1 and S2 to obtain the linear algebraic expression of the product quality score of target staff member i with respect to the real-time rate. Then, the curves of the linear algebraic expressions of all target staff members i are synthesized to form a curve of the comprehensive target staff product quality score with respect to the working rate, and mark it as the comprehensive relationship Hz = A × e -θ×v +C1, Hz is the comprehensive quality fraction, θ is the comprehensive proportional coefficient, C1 is the comprehensive coefficient, A=a2, is the standard fraction, and v is the comprehensive rate;

[0061] S4: Then obtain all the staff members and their working hours in the work schedule for the day, and extract the production target output for the day and mark it as CL, using formula G1:

[0062] Vz is the optimal feeding rate, bj is the number of staff, tj is the working hours of the day, j is the working hours of the staff, including full-day and half-day. When tj is the full-day working hours, bj is the number of full-day staff. When tj is the half-day working hours, bj is the number of half-day staff. a3 is the influence coefficient.

[0063] S5: Combine the comprehensive relationship with formula G1 to calculate Calculate and then take the optimal value of the working rate to obtain the optimal feeding rate Vz;

[0064] The feeding control terminal is used to receive the optimal feeding rate and replace the initial feeding speed with the optimal feeding rate, thereby controlling the feeding equipment;

[0065] The display terminal is used to receive personnel abnormality signals and no-man signals, and generate sound and light reminder information for the received signals. The display terminal then transmits the sound and light reminder information to relevant management personnel, who further confirm the personnel abnormality signals and no-man signals.

[0066] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A feeding control system for clothing production, characterized in that: It includes a position sensing end, a first processing end, a node detection end, a work quality verification end, a second processing end, and a feeding control end; The position sensing terminal is used to identify the IC card of the staff within a preset distance, and take the midpoint between adjacent IC cards as the endpoint, and mark the area between the two adjacent endpoints as the working area; The first processing end is used to mark the worker corresponding to the work information of the IC card identified by the position sensing end as the initial online worker, extract the reference speed from the work information of the initial online worker, perform average processing on the reference speed to obtain the initial feeding speed, and store the work information in the chip of the IC card; The node detection terminal is used to detect the work rate of the initial online personnel in the work area and obtain the real-time rate of the personnel; The work quality verification terminal is used to compare the processed product with the standard product and obtain the product quality score based on the comparison results; The second processing end is used to combine the real-time rate of the target personnel with the product quality score to obtain a linear algebraic expression of the product quality score of a single staff member with respect to the real-time rate. Then, the algebraic curves of the linear algebraic expressions of all staff members are combined to obtain a comprehensive relationship between the product quality score of the comprehensive target personnel and the work rate. Then, all staff members in the work schedule for the day and their working hours and the production target output for the day are calculated to obtain an inequality between the production target output and the optimal feeding rate. Then, the inequality and the curve of the comprehensive relationship are combined and processed, and the optimal feeding rate is obtained based on the processing results. The feeding control end is used to first control the feeding equipment according to the initial feeding speed. When the feeding control end receives the optimal feeding rate, it replaces the initial feeding speed with the optimal feeding rate and controls the feeding equipment.

2. A feeding control system for clothing production according to claim 1, characterized in that: The method to obtain the working area is: When the feeding equipment is initially started, it recognizes the IC card within the preset distance. When the IC card is recognized, the working information in the IC card is obtained. The preset distance is the threshold; Get the number of IC card detections within the preset distance. When the detection number is 0, an unmanned signal will be generated. When the detection number is 1, the area where the feeding equipment is located will be marked as the working area of ​​this staff member. When the detection number is greater than 1, get the distance between adjacent IC cards, take the midpoint of the distance between adjacent IC cards, and mark it as the endpoint. At the same time, mark the two ends of the area where the feeding equipment is located as endpoints. At this time, the area between the two adjacent endpoints is marked as the working area, where there is only one IC card in each working area.

3. A feeding control system for clothing production according to claim 2, characterized in that: Work information is collected by the personnel information collection terminal, and the work information includes name, work number, age and benchmark speed. The benchmark speed refers to the average work speed of the staff in the previous cycle time, and the cycle time is the threshold.

4. A feeding control system for clothing production according to claim 2, characterized in that: The method for obtaining the initial feeding speed is: First, the initial online personnel are checked against the staff scheduled for the day. If the checked information is consistent, a processing signal is generated. If the checked information is inconsistent, a personnel abnormality signal is generated. When the processing signal is generated, the reference speed VGi of the initial personnel on the line is obtained, where i = 1, 2, ..., n, indicating that there are n initial personnel on the line at this time; use The initial feeding speed VLc is obtained, a1 is the cooperation coefficient, and when n=1, a1=1.

5. A feeding control system for clothing production according to claim 1, characterized in that: The method to obtain the real-time rate is: Select any work area as the target area and time the interval between picking up and putting down a single item in the target area. The interval between picking up and putting down a single item refers to the time it takes for staff in the target area to pick up and put down a single item. Get the average of the intervals between the pick-up and placement of N consecutive items and mark it as the real-time rate of the worker during this period, where N is the threshold.

6. A feeding control system for garment production according to claim 1, characterized in that: The method for obtaining the comprehensive relationship is: Mark all personnel in all work areas as target personnel in turn, extract the real-time rate and product quality score of the target personnel in multiple time periods of the day, and associate the product quality score with the real-time rate. At this time, each product has a corresponding product quality score and real-time rate; The mathematical model is used for linear fitting to obtain the linear algebraic formula between the target personnel's product quality score and the real-time rate: Hi = a2×e -λvi +C, vi is the real-time rate of target person i, Hi is the product quality score of target person i, a2 is the standard score, λ is the proportional coefficient, and C is the constant coefficient; The linear algebraic curves of all target personnel i are processed comprehensively to form a curve of the comprehensive target personnel product quality score with respect to the work rate, and it is marked as the comprehensive relationship Hz = A × e -θ×v +C1, Hz is the comprehensive quality fraction, θ is the comprehensive proportional coefficient, C1 is the comprehensive coefficient, A=a2 is the standard fraction, and v is the comprehensive rate.

7. A feeding control system for garment production according to claim 1, characterized in that: The method to obtain the optimal feeding rate is: Obtain the production target output CL, all staff members and their working hours in the work schedule for the day using formula G1: Vz is the optimal feeding rate, bj is the number of staff, tj is the working hours of the day, j is the working hours of the staff, including full-day and half-day. When tj is the full-day working hours, bj is the number of full-day staff. When tj is the half-day working hours, bj is the number of half-day staff. a3 is the influence coefficient. Combine the comprehensive relationship with formula G1 to calculate the optimal value of the working rate and obtain the optimal feeding rate Vz.

8. A feeding control system for garment production according to claim 1, characterized in that: The work schedule for the day is obtained by the operation information acquisition terminal and transmitted to the second processing terminal. The work schedule for the day includes the staff arranged for each process, their working hours and the production target output for the day. The working hours include full-day work and hourly work. The full-day work system means that the staff are fully present on the day. When the staff's leave time is less than one day, their working hours are based on the hourly system.

9. A feeding control system for garment production according to claim 4, characterized in that: It also includes a display terminal for receiving personnel abnormality signals and no-man signals, and then generating sound and light reminder information for the received signals and transmitting them to relevant management personnel, who will further confirm the personnel abnormality signals and no-man signals.

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