CN113101057B

CN113101057B - Collecting device, collecting method, and computer-readable recording medium

Info

Publication number: CN113101057B
Application number: CN202110016192.5A
Authority: CN
Inventors: 村上诚司; 萩田浩己; 宫木正信
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2020-01-10
Filing date: 2021-01-07
Publication date: 2024-03-26
Anticipated expiration: 2041-01-07
Also published as: CN113101057A; JP2021111159A; JP7477301B2

Abstract

The invention provides a collecting device, a collecting method and a computer readable recording medium, which can effectively collect teacher data of a learning model for estimating abnormality occurring in a manufacturing device for manufacturing an absorbent article. The present invention relates to a collecting device for manufacturing an absorbent article, comprising: a first collection unit that collects data of a predetermined sensor among a plurality of sensors provided in a production line of absorbent articles at a first speed; a second collection unit that collects data of sensors other than the predetermined sensor at a second speed lower than the first speed; and a transmitting unit that transmits the data collected by the first collecting unit and the second collecting unit to a generating device that generates a learning model for estimating an abnormality of the production line using the collected data as teacher data.

Description

Collecting device, collecting method, and computer-readable recording medium

Technical Field

The present invention relates to a collecting device, a collecting method, and a computer-readable recording medium relating to the manufacture of absorbent articles.

Background

Conventionally, the following technique is known: in a manufacturing apparatus for manufacturing an absorbent article, product data and equipment data are associated, and when an abnormality occurs in a product, at least one of the product data and the equipment data associated with the product determined to be abnormal is determined, and a manufacturing process that causes the abnormality in the product is determined.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2018-129030

Disclosure of Invention

Problems to be solved by the invention

However, in the above-described technique, there is room for improvement in terms of improving the estimation accuracy of the abnormality that occurs in the manufacturing apparatus for manufacturing the absorbent article. For example, the above-described technique has a problem that an abnormality that may occur cannot be estimated in advance in a manufacturing apparatus for manufacturing an absorbent article.

As an example of such a method of estimating abnormality in advance, collecting device data in production and estimating the abnormality using a learning model in which the collected device data is generated as teacher data may be mentioned. Therefore, when a learning model with high estimation accuracy of an abnormality is generated with respect to the manufacturing apparatus of the absorbent article, it is necessary to efficiently collect the device data to be teacher data.

The present application has been made in view of the above-described circumstances, and an object thereof is to effectively collect teacher data of a learning model for estimating an abnormality occurring in a manufacturing apparatus for manufacturing an absorbent article.

Solution for solving the problem

The present invention relates to a collecting device for manufacturing an absorbent article, comprising: a first collection unit that collects data of a predetermined sensor among a plurality of sensors provided in a production line of absorbent articles at a first speed; a second collection unit that collects data of sensors other than the predetermined sensor at a second speed lower than the first speed; and a transmitting unit that transmits the data collected by the first collecting unit and the second collecting unit to a generating device that generates a learning model for estimating an abnormality of the production line using the collected data as teacher data.

ADVANTAGEOUS EFFECTS OF INVENTION

According to one aspect of the embodiments, teacher data for estimating a learning model of an abnormality occurring in a manufacturing apparatus for manufacturing an absorbent article can be effectively collected.

Drawings

Fig. 1 is a schematic side view showing an example of the structure of a production line according to the embodiment.

Fig. 2 is a block diagram showing an example of the configuration of the collection system according to the embodiment.

Fig. 3 is a diagram showing an example of the structure of the processing section.

Fig. 4 is an explanatory diagram of the product pitch.

Fig. 5 is a block diagram showing an example of the structure of the high-speed collection unit according to the embodiment.

Fig. 6 is a block diagram showing an example of the structure of a main collecting unit provided in a high-speed collecting unit.

Fig. 7 is a block diagram showing an example of the structure of the sub-collecting unit provided in the high-speed collecting unit.

Fig. 8 is a diagram showing an example of a connection structure between the main collecting unit and the sub collecting unit.

Fig. 9 is a timing chart of the high-speed collection process performed by the high-speed collection section.

Fig. 10 is a diagram showing a relationship between a phase angle and sampling start timing shown in the reference encoder.

Fig. 11 is a block diagram showing an example of the structure of the low-speed collection unit according to the embodiment.

Fig. 12 is a block diagram showing an example of the structure of the main collecting unit provided in the low-speed collecting unit.

Fig. 13 is a timing chart of the high-speed collection process performed by the high-speed collection section and the low-speed collection process performed by the low-speed collection section.

Fig. 14 is a flowchart showing a processing procedure performed by the collecting device according to the embodiment.

Fig. 15 is a diagram showing an example of a hardware configuration.

Description of the reference numerals

1: a collection system; 10: a collecting device; 12: a high-speed collection unit; 13: a low-speed collection unit; 14: a transmitting unit; 121: a main collection section; 122: a sub-collection section; 131: a main collection section; 132: a sub-collection section; 300: a processing section; 500: a generating device; 501: learning a model; d: the urine is not wet; PL: a production line; RE: a reference encoder; sr: various sensors; sr_A: a vibration sensor; sr_p: a pressure sensor; sr_T: a temperature sensor.

Detailed Description

At least the following matters will be apparent from the description of the present specification and drawings.

A collecting device for use in connection with the production of a water-absorbent article, comprising: a first collection unit that collects data of a predetermined sensor among a plurality of sensors provided in a production line of absorbent articles at a first speed; a second collection unit that collects data of sensors other than the predetermined sensor at a second speed lower than the first speed; and a transmitting unit that transmits the data collected by the first collecting unit and the second collecting unit to a generating device that generates a learning model that estimates an abnormality of the production line using the collected data as teacher data.

According to such a collecting device, teacher data for estimating a learning model of an abnormality occurring in a manufacturing apparatus for manufacturing an absorbent article can be effectively collected.

In addition, in the collecting device related to the manufacture of the absorbent article, the first collecting portion and the second collecting portion collect data of sensors having correlation with each other in the manufacture of the absorbent article.

According to such a collecting device, for example, in many cases, the manner of each processing to be performed is different, but in the production of an absorbent article having a characteristic of high correlation between processing, data can be effectively collected in consideration of the correlation between processing.

In addition, in the collecting device related to the manufacture of the absorbent article, the first collecting portion collects at least data of the vibration sensor.

According to such a collection device, for example, data of a vibration sensor that changes drastically even though the period is short can be sampled at a high speed with high resolution in accordance with the drastic change, and data useful for generating a learning model can be collected.

In the collecting device related to the production of the absorbent article, the second collecting unit collects data of at least one of the pressure sensor and the temperature sensor.

According to such a collection device, for example, data of a pressure sensor, a temperature sensor, or the like, which changes slowly in a short period, can be collected at a resolution corresponding to the slow change and at a low speed, so that data useful for generating a learning model can be collected.

In the collecting device related to the production of the absorbent article, the first collecting portion and the second collecting portion each have a main collecting portion and one or more sub-collecting portions daisy-chain-connected to the main collecting portion, and at least the first collecting portion of the first collecting portion and the second collecting portion is synchronously controlled so that the main collecting portion and the sub-collecting portion synchronously collect data.

According to such a collecting device, data of a plurality of sensors arranged at different positions along a production line can be collected simultaneously and simultaneously at a specific time point. Thus, data representing the correlation of the sensors to each other at a particular one point in time of the production line can be collected. Further, teacher data useful for generating a learning model with high estimation accuracy of an abnormality can be provided to the generating device based on the data.

In the collecting device related to the production of the absorbent article, the first collecting portion and the second collecting portion are synchronously controlled so that the main collecting portion and the sub-collecting portion collect data at the same time on the time axis.

According to such a collection device, by performing synchronization control to collect data synchronously at the same time on the time axis, data indicating the correlation between processing at a specific one time point of the production line can be collected. Further, teacher data useful for generating a learning model with high estimation accuracy of an abnormality can be provided to the generating device based on the data.

In addition, the production line includes a reference device for measuring a phase angle of the production line, the reference device is rotated by one revolution to correspond to a length of one piece of the absorbent article, and in the collecting device related to the production of the absorbent article, the first collecting portion and the second collecting portion are synchronously controlled so that the main collecting portion and the sub collecting portion collect data when the reference device indicates a specific phase angle.

According to such a collecting device, it is possible to collect data indicating the correlation between processing processes in a particular one time point of the production line synchronized with a particular phase angle of the production line, in other words, synchronized with an arbitrary position corresponding to the particular phase angle of the same absorbent article. That is, a specific position of the absorbent article can be selectively set, and data at any one time point based on the setting can be collected. Further, teacher data useful for generating a learning model with high estimation accuracy of an abnormality can be provided to the generating device based on the data.

In addition, in the collecting device related to the manufacture of the absorbent article, the first collecting portion and the second collecting portion start collecting data in synchronization with each other.

According to such a collection device, data indicating the correlation between different processing treatments at a specific point in time in a production line including both a high-speed collection system and a low-speed collection system can be collected. Further, teacher data useful for generating a learning model with high estimation accuracy of an abnormality can be provided to the generating device based on the data.

The production line includes a plurality of processing units for processing a continuous product, which is a continuous body, at different positions, the continuous product being a processing source of the absorbent article, and the first collecting unit and the second collecting unit each collect data of the processing units in a collecting device related to manufacturing of the absorbent article.

According to such a collecting device, data indicating correlation between a plurality of processing units that are balanced with each other and perform processing of a continuous product at different positions on a production line can be collected. Further, teacher data useful for generating a learning model with high estimation accuracy of an abnormality can be provided to the generating device based on the data.

An example of a mode (hereinafter referred to as "embodiment") for carrying out the collecting device, the collecting method, and the program related to the production of the absorbent article will be described in detail below with reference to the drawings. The collecting device, the collecting method, and the program related to the production of the absorbent article are not limited to this embodiment. In the following embodiments, the same reference numerals are given to the same parts, and overlapping description is omitted.

Embodiment(s)

[ 1. Structural example of production line ]

First, before explaining the collecting device 10 according to the embodiment, a configuration example of a production line PL as an example of a manufacturing apparatus for manufacturing absorbent articles will be described with reference to fig. 1. Fig. 1 is a schematic side view showing an example of the structure of a production line PL according to the embodiment.

The production line PL according to the embodiment is a series of manufacturing steps for manufacturing an absorbent article. The absorbent article is, for example, a diaper, a sanitary napkin, or a diaper. The following description will mainly exemplify the case of producing the diaper D as an absorbent article.

In the line PL, a plurality of processing treatments are performed to process a continuous sheet (also referred to as a "continuous web") which is a continuous body as a processing source of the diaper D at different positions. Further, as used herein, "processing" refers to the overall means of applying to the continuous web prior to the final manufacture of a diaper D.

Thus, in addition to the case where the absorbent body is disposed in order on the continuous web, the continuous web is formed into a predetermined shape, and the trace of the "processing" is finally left on the one diaper D after the processing such as cutting is performed in units of one piece, for example, the case where the trace of the "processing" is finally left on the one diaper D after the material splicing process such as joining the materials such as the continuous web so that the materials are not interrupted is performed.

Hereinafter, the width direction of the line PL (the direction passing through the paper surface of fig. 1) may be referred to as "CD direction", the vertical direction of two directions orthogonal to the CD direction may be referred to as "up-down direction", and the horizontal direction may be referred to as "front-back direction".

As shown in fig. 1, the production line PL includes a core-coated body conveyance path R1, an absorber conveyance path R2, a fastening-belt conveyance path R3, a surface-sheet conveyance path R4, a target-belt conveyance path R5, a back-sheet conveyance path R6, and a base-sheet conveyance path R7.

The conveyance paths R1 to R7 are provided with conveyance devices, not shown. The conveying device is composed of a conveyor belt, conveying rollers, and the like. The conveyor belt is, for example, a normal conveyor belt having a conveyance surface as an endless belt driven by a winding, or a suction conveyor belt having a suction function on an outer peripheral surface of the endless belt.

In the core-coating conveying path R1, the core-coating sheet Cs is unwound from a roll 201 in which the core-coating sheet Cs is wound in a loop. That is, the core-coated sheet Cs, which is a continuous sheet, is conveyed in the core-coated conveying path R1. The core wrap sheet Cs is a sheet member having liquid permeability such as tissue paper or nonwoven fabric.

In the absorber conveying path R2, the absorber Ab is placed on the core-coating sheet Cs conveyed from the core-coating conveying path R1. The absorber Ab is placed on the core-coated sheet Cs by the fiber accumulation drum 202 rotating around a rotation axis along the CD direction. The absorber Ab is a liquid absorber material, such as pulp fibers and superabsorbent polymers (SAP: superabsorbent polymer).

A plurality of concave portions 202a are formed in the outer circumferential surface of the fiber accumulating drum 202 in the rotational direction. Pulp fibers and SAP ejected from the nozzle are stacked in the recess 202a. The concave portion 202a is formed so that the absorber Ab placed on the core-coated sheet Cs has a substantially rectangular shape in a plan view. A plurality of absorbers Ab are placed on the core wrap sheet Cs so as to be aligned in the front-rear direction.

The absorber transport path R2 is provided with a cutter 203. The cutter 203 cuts the core-coated sheet Cs on which the absorber Ab is placed. The cutting device 203 includes a cutting roller 203a and an anvil roller 203b.

The cutter roller 203a rotates about a rotation axis along the CD direction. A cutting blade is provided in the rotation axis direction on the cutting roller 203 a. Anvil roll 203b rotates about a rotation axis along the CD direction.

The cutter 203 nips and cuts the core coated sheet Cs on which the absorber Ab is placed by the cutter roller 203a and the anvil roller 203 b. Further, the cutting device 203 cuts the core-coated sheet Cs at a position between the adjacent absorbers Ab.

In the absorber conveying path R2, the core wrap sheet Cs cut by the cutting device 203 is conveyed forward.

In the fastening tape conveying path R3, a fastening tape Ft1 as a continuous sheet is conveyed. In the fastening tape conveying path R3, an adhesive is applied to the fastening tape Ft1 by the adhesive applying device 204.

In the top sheet conveying path R4, the top sheet Ts is unwound from the roll 205 in which the top sheet Ts is wound in a loop. That is, the top sheet Ts as a continuous sheet is conveyed in the top sheet conveying path R4. The surface sheet Ts is a sheet member having liquid permeability, and is, for example, a nonwoven fabric containing thermoplastic resin fibers such as polyethylene and polypropylene.

The surface sheet conveying path R4 is provided with a slide cutter 206. The slide cutter 206 cuts the fastener tape Ft1 conveyed in the fastener tape conveying path R3. The slide cutter 206 includes a cutter roller 206a and an anvil roller 206b.

The cutter roller 206a rotates about a rotation axis along the CD direction. The cutting roller 206a is provided with a cutting blade (not shown) that cuts the fastening tape Ft1 as a continuous sheet into a fastening tape Ft2 of a single sheet shape. The cutting blade is provided in plurality in the rotation direction.

The anvil roll 206b adsorbs and holds the fastening tape Ft1 coated with an adhesive as a continuous body. The anvil roll 206b rotates about a rotation axis along the CD direction. The anvil roll 206b is provided with a receiving blade (not shown) facing the cutting blade of the cutting roll 206 a.

The slide cutting device 206 adsorbs the fastening tape Ft1 as a continuous sheet coated with an adhesive by the anvil roll 206b, and cuts the fastening tape Ft1 as a continuous sheet by the cutting roll 206a to generate a fastening tape Ft2 of Shan Zhangzhuang.

The slide cutter 206 sucks the fastening tape Ft2 cut into a single sheet by the anvil roll 206b, and conveys the fastening tape Ft2 to a position facing the surface sheet Ts.

In addition, in the surface sheet conveying path R4, a temporary pressing roller 207 is provided below the anvil roller 206 b. The temporary pressing roller 207 is disposed so as to face the anvil roller 206b across the surface sheet Ts.

The temporary pressing roller 207 rotates around a rotation axis along the CD direction. The temporary pressing roller 207 presses against the anvil roller 206b at the timing when the fastening tape Ft2 sucked to the anvil roller 206b is conveyed above the surface sheet Ts. Thus, the surface sheet Ts as a continuous body is pressed against the anvil roll 206b, and the fastening tape Ft2 is bonded to the surface sheet Ts by the adhesive applied to the fastening tape Ft2. Thereby, the fastening tape Ft2 is temporarily fixed to the top sheet Ts.

The main pressing device 208 is provided in the top sheet conveying path R4. The main pressing device 208 is provided downstream of the temporary pressing roller 207 in the conveying direction of the surface sheet Ts in the surface sheet conveying path R4.

The main pressing device 208 main-fixes the fastening tape Ft2 temporarily fixed to the surface sheet Ts. The main pressing device 208 clamps the surface sheet Ts to which the fastening tape Ft2 is temporarily fixed by a pair of rollers, and main-fixes the fastening tape Ft2 to the surface sheet Ts.

Each roller rotates around a rotation axis along the CD direction. One of the pair of rollers reciprocates toward the other roller. That is, the distance between the pair of rollers can be changed.

The top sheet conveying path R4 is provided with an adhesive applying device 209. The adhesive applying device 209 is provided downstream of the main pressing device 208 in the conveying direction of the surface sheet Ts. The adhesive applying device 209 applies an adhesive to the surface sheet Ts to which the fastening tape Ft2 is formally fixed. The adhesive applying device 209 applies an adhesive to the non-skin side surface of the top sheet Ts.

The target belt Tt1 as a continuous sheet is conveyed in the target belt conveying path R5. In the target tape conveying path R5, an adhesive is applied to the target tape Tt1 by the adhesive applying device 210.

In the back sheet conveyance path R6, the back sheet Bs is unwound from a roll 211 in which the back sheet Bs is wound in a loop. That is, the back sheet Bs as a continuous sheet is conveyed in the back sheet conveying path R6. The back sheet Bs is a sheet member having no liquid permeability, and is, for example, a thermoplastic resin film such as polyethylene.

The back sheet conveyance path R6 is provided with a slide cutter 212. The slide cutter 212 cuts the target tape Tt1 conveyed in the target tape conveying path R5. The slide cutter 212 includes a cutter roll 212a and an anvil roll 212b.

The cutter roll 212a rotates about a rotation axis along the CD direction. The cutting roller 212a is provided with a cutting blade (not shown) that cuts the target tape Tt1 as a continuous sheet into a single target tape Tt2. The cutting blade is provided in plurality in the rotation direction.

The anvil roll 212b adsorbs and holds the target tape Tt1 as a continuous body coated with an adhesive. The anvil roll 212b rotates about a rotation axis along the CD direction. The anvil roll 212b is provided with a receiving blade (not shown) facing the cutting blade of the cutting roll 212 a.

The slide cutter 212 adsorbs the target tape Tt1 as a continuous sheet coated with an adhesive by the anvil roll 212b, and cuts the target tape Tt1 as a continuous sheet by the cutter roll 212a to generate a target tape Tt2 of Shan Zhangzhuang.

The slide cutter 212 sucks the target tape Tt2 cut into individual pieces by the anvil roll 212b, and conveys the individual pieces of target tape Tt2 to a position opposed to the back sheet Bs.

In addition, in the back sheet conveying path R6, a temporary pressing roller 213 is provided below the anvil roller 212 b. The temporary pressing roller 213 is disposed so as to face the anvil roller 212b across the back sheet Bs.

The temporary pressing roller 213 rotates around a rotation axis along the CD direction. The temporary pressing roller 213 presses against the anvil roller 212b at the timing when the target tape Tt2 sucked by the anvil roller 212b is conveyed above the back sheet Bs. Thereby, the back sheet Bs as a continuous body is pressed against the anvil roll 212b, and the target tape Tt2 is bonded to the back sheet Bs by the adhesive applied to the target tape Tt 2. Thereby, the target tape Tt2 is temporarily fixed to the back sheet Bs.

The back sheet conveying path R6 is provided with a main pressing device 214. The main pressing device 214 is provided downstream of the temporary pressing roller 213 in the conveyance direction of the back sheet Bs in the back sheet conveyance path R6.

The main pressing device 214 main-fixes the target tape Tt2 temporarily fixed to the back sheet Bs. The main pressing device 214 clamps the back sheet Bs to which the target tape Tt2 is temporarily fixed by a pair of rollers, and main-fixes the target tape Tt2 to the back sheet Bs.

The back sheet conveyance path R6 is provided with an adhesive applying device 215. The adhesive applying device 215 is provided downstream of the main pressing device 214 in the conveyance direction of the back sheet Bs. The adhesive applying device 215 applies an adhesive to the back sheet Bs to which the target tape Tt2 is formally fixed. The adhesive applicator 215 applies an adhesive to the skin side surface of the back sheet Bs.

The absorber Ab conveyed through the absorber conveying path R2, the top sheet Ts conveyed through the top sheet conveying path R4, and the back sheet Bs conveyed through the back sheet conveying path R6 merge at the merging position Mp.

Specifically, at the merging position Mp, the back sheet Bs as a continuous sheet merges from the non-skin side of the absorber Ab, and the front sheet Ts as a continuous sheet merges from the skin side of the absorber Ab. Since the adhesive is applied to each of the top sheet Ts and the back sheet Bs, the top sheet Ts, the absorber Ab, and the back sheet Bs are joined together by the adhesive, and a base sheet BMs as a continuous sheet is produced. In the base sheet BMs, the absorbent bodies Ab are continuously arranged at a product pitch P corresponding to the length of one diaper D in the front-rear direction.

Fig. 1 shows a state in which the base sheet BMs is separated from the top sheet Ts, the absorber Ab, and the back sheet Bs, which are positioned downstream of the merging position Mp in the conveying direction of the base sheet BMs, but they are actually joined together.

The base sheet BMs is conveyed in the base sheet conveying path R7. A leg hole cutting device 216 is provided in the base sheet conveyance path R7. The leg hole cutting device 216 cuts a portion of the base sheet BMs on both sides in the CD direction to form leg-surrounding openings of the diaper D. The leg hole cutting device 216 is provided with a cutting roller 216a and an anvil roller 216b.

The cutter roller 216a rotates about a rotation axis along the CD direction. A cutter blade (not shown) is provided in the rotation direction of the cutter roller 216 a. The cutting blade is provided in a curved shape corresponding to the shape of the leg-surrounding opening. The anvil roll 216b rotates about a rotation axis along the CD direction.

The rollers 216a and 216b in the leg hole cutting device 216 rotate in conjunction with the conveyance operation of the base sheet BMs to form a leg-surrounding opening at a predetermined position of the base sheet BMs.

In the leg hole cutting device 216, the cutting roller 216a can be moved toward the anvil roller 216b, so that the interval between the cutting roller 216a and the anvil roller 216b can be changed.

The trailing edge cutting device 217 is provided in the base sheet conveying path R7. The trailing edge cutting device 217 is provided downstream of the leg hole cutting device 216 in the conveyance direction of the base sheet BMs in the base sheet conveyance path R7.

The trailing edge cutting device 217 cuts the base sheet BMs conveyed through the base sheet conveying path R7. The tail end cutting device 217 is provided with a cutting roller 217a and an anvil roller 217b.

The cutter roller 217a rotates about a rotation axis along the CD direction. A cutter blade (not shown) is provided in the cutting roller 217a along the rotation axis direction. The anvil roll 217b rotates about a rotation axis along the CD direction.

The trailing end cutting device 217 cuts the downstream end of the base sheet BMs at a predetermined position in the base sheet BMs to produce a diaper D.

As described above, in the production line PL, the rolls 201, 205, 211, the fiber accumulating drum 202, the cutting device 203, the adhesive applying devices 204, 209, 210, 215, the slide cutting devices 206, 212, the temporary pressing rollers 207, 213, the main pressing devices 208, 214, the leg hole cutting device 216, the tail end cutting device 217, and various processing devices (hereinafter referred to as "processing units 300") related to the production of the diaper D, such as the conveying devices forming the conveying paths R1 to R7, are operated in a coordinated manner while holding the continuous roll at a predetermined tension, thereby producing the diaper D.

In other words, the diaper D is manufactured by processing the plurality of processing units 300 provided at different positions in the production line PL in different forms and in a linked manner, for example, by conveying the continuous web at a high speed while maintaining a predetermined tension, disposing the absorbent bodies Ab in order, forming the absorbent bodies Ab into a predetermined shape, and cutting the continuous web in units of one diaper D. That is, in the production line PL, the form of each processing is often different, but the correlation between processing is high, and processing in the downstream process is easily affected by processing in the upstream process.

Therefore, when it is desired to collect equipment data during the manufacturing process of the production line PL at the time of estimating an abnormality in the production line PL, and to use a learning model generated using the equipment data as teacher data, it is necessary to collect data effectively in consideration of the correlation between the processing processes described above.

Therefore, in the collecting method according to the embodiment, the data of a predetermined sensor among the plurality of sensors provided in the absorbent article production line PL is collected at the first speed, and the data of the other sensors other than the predetermined sensor is collected at the second speed lower than the first speed. Further, the data collected at the first speed and the data collected at the second speed are transmitted to a generating device for generating a learning model for estimating an abnormality of the production line PL using the data as teacher data.

A configuration example of the collection system 1 to which the collection method according to the embodiment is applied will be described in detail below with reference to fig. 2 and subsequent drawings.

[ 2 ] an example of the structure of the collecting system according to the embodiment

Fig. 2 is a block diagram showing an example of the configuration of the collection system 1 according to the embodiment. Various block diagrams are also shown in fig. 5 to 7, 11 and 12, which are shown later, and are shown in fig. 2, but these block diagrams only show components necessary for explaining the features of the present embodiment, and description of general components is omitted.

In other words, each constituent element illustrated in these block diagrams is functionally conceptual, and is not necessarily physically configured as illustrated. For example, the specific manner of distribution/integration of the respective devices is not limited to the illustrated manner, and all or a part of the devices may be distributed/integrated in an arbitrary unit functionally or physically according to various loads, use conditions, and the like.

In the description using these block diagrams, the constituent elements already described may be simplified or omitted.

As shown in fig. 2, the collection system 1 according to the embodiment includes a collection device 10, a display unit 20, a generation device 500, and a production line PL.

The collection device 10, the display unit 20, and the production line PL are communicably connected to each other via a wired or wireless network 100 as a communication line. The network 100 is, for example, an intranet composed of a LAN (Local Area Network: local area network) or the like.

The collecting device 10 and the generating device 500 are communicably connected to each other via a network N as a communication line, which is wired or wireless. The network N is a communication network such as LAN, WAN (Wide Area Network: wide area network), telephone network (mobile telephone network, fixed telephone network), area IP (Internet Protocol: internet protocol) network, the internet, or the like.

[ 2-1 ] concerning the generating means ]

Here, the generating device 500 is described in advance. The generating device 500 is a device that generates a learning model 501 for estimating an abnormality of the production line PL using the data collected by the collecting device 10 as teacher data. The generating means 500 is for example implemented as a cloud server. The generating device 500 generates the learning model 501 using a predetermined machine learning algorithm.

As the algorithm for machine learning, for example, deep learning is used, but the method is not limited thereto, and machine learning may be performed by a regression analysis method such as support vector regression using a pattern classifier such as an SVM (Support Vector Machine: support vector machine). The pattern classifier is not limited to the SVM, and may be, for example, adaptive enhancement (Adaptive Boosting). In addition, random forests and the like may also be used.

The generating device 500 transmits the generated learning model 501 to the production line PL, for example, via the collecting device 10. The production line PL inputs real-time equipment data in the manufacturing process to the transmitted learning model 501, for example, to thereby estimate an abnormality of the production line PL.

Further, the generating apparatus 500 may hold the learning model 501 without transmitting it, and the generating apparatus 500 may estimate an abnormality of the production line PL based on, for example, real-time data in the manufacturing process loaded from the collecting apparatus 10 at any time via the network N.

[ 2-2. Structural example of collecting device ]

The collecting device 10 includes a storage unit 11, a high-speed collecting unit 12, a low-speed collecting unit 13, and a transmitting unit 14. The storage unit 11 is implemented by a storage device such as a NAS (Network Attached Storage: network attached storage), a hard disk, or an optical disk, and in the example of fig. 2, stores a collection DB (database) 11a.

The collection DB 11a is a database storing data collected by the high-speed collection unit 12 and the low-speed collection unit 13.

The high-speed collection unit 12 corresponds to an example of a "first collection unit", collects data of a predetermined sensor Sr among the plurality of sensors Sr provided in the production line PL at a first speed, and stores the collected data in the collection DB 11a.

The low-speed collection unit 13 corresponds to an example of the "second collection unit", collects data of sensors Sr other than the sensor Sr that is the collection target of the high-speed collection unit 12 at a second speed lower than the first speed, and stores the collected data in the collection DB 11a. Further, the high-speed collection portion 12 and the low-speed collection portion 13 collect data of the sensor Sr having correlation with each other in the manufacturing process of the diaper D. A structural example of the high-speed collection unit 12 and the low-speed collection unit 13 will be described in detail with reference to fig. 5 and subsequent drawings.

The transmitting section 14 acquires the data collected by the high-speed collecting section 12 and the low-speed collecting section 13 from the collecting DB 11a, and transmits the data to the generating apparatus 500 via the network N.

The display unit 20 is an information display device including a display or the like, and is provided so as to be able to appropriately display the processing status of the collecting device 10, for example, the data collection status of the high-speed collecting unit 12, the data collection status of the low-speed collecting unit 13, the data storage status of the collecting DB 11a, the data transmission status of the transmitting unit 14, and the like.

The display unit 20 may be an information processing device such as a mobile phone including a smart phone, a tablet terminal, a desktop PC (Personal Computer: personal computer), a notebook PC, or a PDA (Personal Digital Assistant: personal digital assistant), for example. The display unit 20 may be a Wearable Device (wireless Device) that is an information processing terminal of a glasses type or a clock type.

The production line PL includes a plurality of processing units 300 (300-1, 300-2, 300-3, …) and a reference encoder RE. The plurality of processing units 300 correspond to various processing apparatuses related to the production of the diaper D, such as the rolls 201, 205, 211, the fiber accumulation drum 202, the cutting device 203, the adhesive applying devices 204, 209, 210, 215, the slide cutting devices 206, 212, the temporary pressing rollers 207, 213, the main pressing devices 208, 214, the leg hole cutting device 216, the tail end cutting device 217, and the conveying devices forming the conveying paths R1 to R7.

The processing unit 300 is connected to various sensors Sr (Sr-1, sr-2, sr-3, …), respectively. The reference encoder RE is an example of a reference for measuring the phase angle of the line PL.

[ 2-3 ] regarding various sensors and reference encoders ]

Here, various sensors Sr and reference encoders RE will be described. Fig. 3 is a diagram showing an example of the structure of the processing unit 300. Fig. 4 is an explanatory diagram of the product pitch P. In fig. 3, the cutting device 203 is shown as an example of the processing unit 300.

As described above, the cutter 203 includes the cutter roller 203a and the anvil roller 203b as shown in fig. 3. In addition, the cutting device 203 has a motor 203c and an encoder 203d.

The motor 203c is a driving source for rotating the cutter roller 203 a. An encoder 203d is provided at the shaft end of the motor 203c for measuring the rotation angle of the motor 203c (i.e., the rotation angle of the cutter roller 203 a).

Here, the circumference of the cutter roller 203a is set to the same value as the length of the one diaper D shown in fig. 4, that is, the length of the product pitch P. Thus, when the cutter roller 203a rotates once, for example, the absorber Ab is conveyed by a conveyance amount corresponding to the length of the product pitch P (hereinafter, appropriately referred to as "unit conveyance amount").

The encoder 203d rotates integrally with the motor 203c (i.e., the cutter roller 203 a), and based on the input of the rotation operation, outputs a digital value of, for example, 0 to a predetermined upper limit value corresponding to 0 ° to 360 ° in proportion to the conveyance amount per unit conveyance amount.

The digital value is transmitted as a reference signal to a control device (not shown) of the production line PL, for example, and is used for a series of linkage control or the like performed by the plurality of processing units 300 in the production line PL. The encoder 203d that outputs the reference signal is also referred to as a "reference encoder RE" to distinguish it from other encoders. As described above, the reference encoder RE rotates one revolution to correspond to the length of one diaper D, and the phase angle of the line PL is measured corresponding to the length of the one diaper D.

The case where the encoder 203d of the cutting device 203 is the reference encoder RE is described here, but the encoder provided in the other processing unit 300 may be the reference encoder RE.

For example, any one of the encoders included in the slide cutting devices 206 and 212, the temporary pressing rollers 207 and 213, the main pressing devices 208 and 214, the leg hole cutting device 216, and the tail end cutting device 217 may be used as the reference encoder RE. Further, any one of the encoders included in the conveying devices forming the conveying paths R2, R4, R6, R7, and the like may be set as the reference encoder RE. The reference encoder RE does not necessarily have to be an encoder physically provided in the production line PL, and may be a dummy encoder.

As shown in fig. 3, the cutting device 203 is connected to at least a vibration sensor sr_a, a pressure sensor sr_p, and a temperature sensor sr_t, which are various sensors Sr, for example.

The vibration sensor sr_a is, for example, an acceleration sensor, and measures vibration of the cutter 203 during the manufacturing process of the diaper D. The pressure sensor sr_p measures the pressure of the cutter 203 during the process of manufacturing the diaper D, for example, the pressure when the core wrap sheet Cs on which the absorber Ab is placed is nipped and cut. The temperature sensor sr_t measures the temperature of the cutter 203 during the manufacturing process of the diaper D.

[ 3. Structural example of high-speed collector ]

Next, a configuration example of the high-speed collection unit 12 according to the embodiment will be described with reference to fig. 5 to 10. First, fig. 5 is a block diagram showing an example of the structure of the high-speed collection unit 12 according to the embodiment.

As shown in fig. 5, the high-speed collection unit 12 includes a main collection unit 121 and one or more sub-collection units 122 (122-1, 122-2, 122-3, …).

The main collecting unit 121 and the sub-collecting unit 122 are each implemented by a PLC (Programmable Logic Controller: programmable logic controller), for example. The main collecting section 121 comprehensively controls the high-speed collecting process performed by the high-speed collecting section 12.

The sub-collection unit 122 samples data of, for example, the vibration sensor sr_a among the various sensors Sr connected to the plurality of processing units 300. Although fig. 5 shows an example in which the sub-collecting unit 122 and the vibration sensor sr_a are in one-to-one correspondence, the sub-collecting unit 122 and the vibration sensor sr_a1 may be in one-to-many correspondence.

The main collecting unit 121 notifies each sub-collecting unit 122 of a trigger of data sampling at a predetermined collecting timing, and causes all sub-collecting units 122 to sample the data of the vibration sensor sr_a at a high speed in synchronization with the same time on the time axis.

In the case where the rotation speed of the predetermined motor in the line PL is equal to or higher than the predetermined value during the production of the diaper D, the high-speed sampling is performed under the conditions that the sampling period is 80 microseconds, the sampling point number is 22500 points, and the like every 30 minutes for 2 seconds.

The main collecting unit 121 causes each sub-collecting unit 122 to store data of the vibration sensor sr_a obtained by high-speed sampling in the collecting DB 11a.

As a result, for example, data of each vibration sensor sr_a, which has been drastically changed even though the period is short, can be sampled at a high speed with high resolution in accordance with the drastic change, and data useful for generating the learning model 501 can be collected.

In fig. 5, only the sub-collection unit 122 collects the data of the vibration sensor sr_a, but the main collection unit 121 may sample the data of the vibration sensor sr_a corresponding to the main collection unit 121 together with the sub-collection unit 122.

The configuration examples of the main collecting unit 121 and the sub-collecting unit 122 will be described in more detail. Fig. 6 is a block diagram showing an example of the structure of the main collecting unit 121 provided in the high-speed collecting unit 12. Fig. 7 is a block diagram showing an example of the configuration of the sub-collecting unit 122 provided in the high-speed collecting unit 12.

As shown in fig. 6, the main collection unit 121 includes a control unit 121a. The control unit 121a is a controller (controller), and is realized by executing various programs stored in a memory device inside the main collection unit 121 using a RAM (Random Access Memory: random access memory) as a working area, such as a CPU (Central Processing Unit: central processing unit) and an MPU (Micro Processing Unit: micro processing unit). The control unit 121a may be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit: application specific integrated circuit) or an FPGA (Field Programmable Gate Array: field programmable gate array).

The control unit 121a includes an acquisition unit 121aa, a generation unit 121ab, and a notification unit 121ac, and realizes or executes functions and actions of information processing described below.

The acquisition unit 121aa acquires a predetermined collection timing. The acquisition unit 121aa acquires a predetermined collection timing based on a clock signal output from a clock generation circuit, not shown, provided in the collection device 10, for example.

The collection timing referred to herein is strictly a trigger generation timing for the main collection unit 121. In addition, the acquisition unit 121aa acquires a reference signal indicating the phase angle of the line PL from the reference encoder RE.

When the acquisition unit 121aa acquires the aforementioned collection timing, the generation unit 121ab generates a trigger for data sampling for each sub-collection unit 122. Triggering includes, for example, the conditions of sampling described above, and the like. The notification unit 121ac notifies each sub-collection unit 122 of the trigger generated by the generation unit 121 ab.

Next, as shown in fig. 7, the sub-collection unit 122 includes a control unit 122a. As with the control unit 121a, the control unit 122a is a controller, and for example, a CPU, MPU, or the like executes various programs stored in a memory device inside the sub-collection unit 122 using a RAM as a working area, thereby realizing the control unit 122a. The control unit 122a may be implemented by an integrated circuit such as an ASIC or FPGA.

The control unit 122a includes an acquisition unit 122aa and a selection unit 122ab, and realizes or executes functions and roles of information processing described below.

The acquisition section 122aa acquires the trigger notified from the main collection section 121. The selecting unit 122ab samples the data of the vibration sensor sr_a at a high speed based on the trigger acquired by the acquiring unit 122 aa.

Here, the high-speed collection processing performed by the high-speed collection unit 12 will be described in more detail on the premise of the foregoing description. Fig. 8 is a diagram showing an example of a connection structure between the main collecting unit 121 and the sub collecting unit 122. Fig. 9 is a timing chart of the high-speed collection process performed by the high-speed collection unit 12.

As shown in fig. 8, one or more sub-collectors 122 are daisy-chained to the main collector 121, for example, by direct wires or the like. The main collecting unit 121 can grasp the communication speed of the direct wire and the distances d1, d2, and d3 for each direct wire in advance, and can make the trigger reach the sub-collecting units 122 at an arbitrary timing.

For example, as shown in fig. 9, three sub-collecting units 122-1, 122-2, 122-3 are connected to the main collecting unit 121, and the main collecting unit 121 is connected to the main collecting unit at time t _n-4 And generating a trigger and notifying. Thus, for example, the sub-collecting part 122-1 at time t _n-3 And acquiring a trigger. However, at this time t, the main collecting portion 121 _n-3 The sub-collection unit 122-1 is not caused to start sampling data.

Similarly, for example, the sub-collection part 122-2 is at time t _n-2 And acquiring a trigger. However, at this time t, the main collecting portion 121 _n-2 The sub-collection unit 122-2 is not caused to start sampling data.

Further, for example, the sub-collecting part 122-3 is at time t _n-1 And acquiring a trigger. Then, the main collecting unit 121, based on the trigger, at time t _n-1 Time t being approximately the same time _n The sub-collection unit 122 starts sampling data at the same time.

As described above, by performing the synchronization control so that the data is collected synchronously at the same time on the time axis, the data indicating the correlation between the processing units 300 at a specific one time point of the production line PL can be collected. In addition, based on this, teacher data useful for generating the learning model 501 having high estimation accuracy of the abnormality can be provided to the generating device 500.

In this case, the synchronization control is performed so that data is collected synchronously at the same time on the time axis, but the synchronization control may be performed in consideration of the phase angle of the reference encoder RE.

Fig. 10 is a diagram showing a relationship between a phase angle indicated by the reference encoder RE and a sampling start timing. For example, the time t described with reference to fig. 9 _n Timing starts for the initial sampling.

Thus, for example, the main collecting section 121 can be based on the time t _n And a reference signal acquired from the base encoder RE to perform synchronization control to collect data in the case where the production line PL represents a specific phase angle.

For example, as shown in fig. 10, the main collecting unit 121 at time t _n Thereafter, and a time t at which the phase angle of the line PL is initially restored from 360 ° to the origin position of 0 ° _n+1 The sub-collection unit 122 starts sampling data at the same time.

Thus, data indicating the correlation between the processing units 300 at a specific one time point of the production line PL in synchronization with the predetermined position of one diaper D can be collected. In addition, based on this, teacher data useful for generating the learning model 501 having high estimation accuracy of the abnormality can be provided to the generating device 500.

In fig. 10, the example is shown in which sampling is started when the phase angle of the line PL indicates the origin position, but the sampling is not limited to the origin position and may be any phase angle position.

[ 4. Structural example of Low speed collector ]

Next, a configuration example of the low-speed collection unit 13 according to the embodiment will be described with reference to fig. 11 and 12. First, fig. 11 is a block diagram showing an example of the structure of the low-speed collection unit 13 according to the embodiment.

As shown in fig. 11, the low-speed collection unit 13 includes a main collection unit 131 and one or more sub-collection units 132 (132-1, 132-2, 132-3, …).

As with the main collecting unit 121 and the sub collecting unit 122 of the high-speed collecting unit 12 described above, the main collecting unit 131 and the sub collecting unit 132 can be realized by, for example, PLCs, respectively. However, as another example, the main collection unit 131 is realized by a PLC, and the sub-collection unit 132 is realized by a dedicated device dedicated to sampling of data.

The main collecting section 131 comprehensively controls the low-speed collecting process performed by the low-speed collecting section 13. The sub-collection unit 132 samples data of, for example, the pressure sensor sr_p among the various sensors Sr connected to the plurality of processing units 300. In fig. 11, the sub-collection unit 132 and the pressure sensor sr_p are shown as 1:1, but the sub-collection unit 132 and the pressure sensor sr_p may be 1: n (n is a natural number).

The main collecting unit 131 remotely controls each sub-collecting unit 132 at a predetermined collecting timing, thereby sampling the data of the pressure sensor sr_p at a low speed in synchronization with the sub-collecting unit 132 at the same time on the time axis.

In the low-speed sampling described here, when the rotation speed of the predetermined motor in the line PL is equal to or higher than the predetermined value during the production of the diaper D, the low-speed sampling is performed under the conditions that the sampling period is 5 milliseconds and the sampling point number is 400, for example, every 30 minutes for 2 seconds.

The main collecting unit 131 also stores data of the pressure sensor sr_p obtained by sampling the sub-collecting units 132 at a low speed in the collecting DB 11a.

Thus, for example, data of each pressure sensor sr_p that changes slowly in a short period can be sampled at a low rate at a resolution corresponding to the slow change, and data useful for generating the learning model 501 can be collected.

In fig. 11, only the sub-collecting unit 132 collects data of the pressure sensor sr_p, but the main collecting unit 131 may sample data of the pressure sensor sr_p corresponding to the main collecting unit 131 together with the sub-collecting unit 132.

In fig. 11, the pressure sensor sr_p is exemplified, but the sensor Sr may be a temperature sensor sr_t as the object of low-speed collection, as long as it is a sensor Sr that measures data that changes relatively slowly in a predetermined period.

The configuration example of the main collecting unit 131 will be described in more detail. Fig. 12 is a block diagram showing an example of the structure of the main collecting unit 131 provided in the low-speed collecting unit 13.

As shown in fig. 12, the main collecting unit 131 includes a control unit 131a. As with the control units 121a and 122a described above, the control unit 131a is a controller, for example, a CPU, MPU, or the like, which executes various programs stored in a memory device inside the main collection unit 131 using a RAM as a working area, thereby realizing the control unit 131a. The control unit 131a may be implemented by an integrated circuit such as an ASIC or FPGA.

The control unit 131a includes an acquisition unit 131aa and a remote control unit 131ab, and realizes or executes functions and actions of information processing described below.

The acquisition unit 131aa acquires a predetermined collection timing. The acquisition unit 131aa acquires a predetermined collection timing based on a clock signal output from a clock generation circuit, not shown, provided in the collection device 10, for example. In addition, the acquisition unit 131aa acquires a reference signal indicating the phase angle of the line PL from the reference encoder RE.

When the acquisition unit 131aa acquires the aforementioned collection timing, the remote control unit 131ab remotely controls each sub-collection unit 132 as a dedicated device dedicated to data sampling, and causes the sub-collection units 132 to start data sampling at once.

In this case, as described with reference to fig. 10, the remote control unit 131ab can cause the sub-collection unit 132 to start data sampling together when the line PL indicates a specific phase angle based on the reference signal acquired by the acquisition unit 131 aa.

In the description with reference to fig. 11 and 12, the low-speed collection unit 13 performs synchronization control of data collection in the same manner as the high-speed collection unit 12, but the low-speed collection unit 13 may not necessarily perform the synchronization control.

In the description with reference to fig. 11 and 12, the main collecting unit 131 serving as the low-speed collecting unit 13 is realized by a PLC, and the sub-collecting unit 132 is realized by a dedicated device dedicated to sampling of data, but the present invention is not limited thereto. For example, the main collecting unit 131 and the sub-collecting unit 132 may be each implemented by a PLC, and the low-speed collecting unit 13 may have the same configuration as the high-speed collecting unit 12 shown in fig. 5 to 10.

Further, although the synchronous control of the data collection performed in each of the high-speed collection unit 12 and the low-speed collection unit 13 has been described above, it is preferable that the high-speed collection unit 12 and the low-speed collection unit 13 start the data collection in synchronization with each other. Next, this point will be described. Fig. 13 is a timing chart of the high-speed collection process performed by the high-speed collection section 12 and the low-speed collection process performed by the low-speed collection section 13.

As shown in fig. 13, the collection units of the high-speed collection unit 12 and the low-speed collection unit 13 start data collection in synchronization with each other.

The high-speed collection unit 12 and the low-speed collection unit 13 acquire a predetermined collection timing based on a clock signal output from a clock generation circuit, not shown, provided in the collection device 10, for example. Then, based on the collection timing, control is performed so as to synchronize with each other at the same timing (time t in the example of fig. 13 _n 、t _n+m …) begins the collection of data.

Further, for example, considering delay due to processing load, timing synchronization is obtained by exchanging simple packets corresponding to ACK (Acknowledgement)/NAK (Negative Acknowledgement) or the like between the high-speed collection unit 12 and the low-speed collection unit 13 before actually starting collection of data. Further, the timing of one of the high-speed collection unit 12 and the low-speed collection unit 13 may be corrected by using the other timing as a reference, thereby obtaining synchronization of the timings.

As described above, the high-speed collection unit 12 and the low-speed collection unit 13 start data collection in synchronization with each other, and thereby can collect data indicating the correlation between the processing units 300 at a specific one time point of the production line PL including both the high-speed collection system and the low-speed collection system. In addition, based on this, teacher data useful for generating the learning model 501 having high estimation accuracy of the abnormality can be provided to the generating device 500.

[ 5. Process ]

Next, a process performed by the collecting device 10 according to the embodiment will be described with reference to fig. 14. Fig. 14 is a flowchart showing a processing procedure performed by the collecting apparatus 10 according to the embodiment.

First, the high-speed collection unit 12 and the low-speed collection unit 13 determine whether or not the collection timing is set (step S101). Here, if the collection timing is not (no in step S101), the processing from step S101 is repeated.

In addition, if the collection timing is (yes in step S101), the high-speed collection unit 12 collects the data of the vibration sensor sr_a at a high speed at a first speed (step S102). At the same time, the low-speed collection unit 13 collects data other than the vibration sensor sr_a at a second speed lower than the first speed (step S103).

Then, the high-speed collection unit 12 and the low-speed collection unit 13 store the data collected respectively in the collection DB 11a (step S104).

Then, the transmitting unit 14 transmits the data collected and stored in the collection DB 11a by the high-speed collection unit 12 and the low-speed collection unit 13 to the generating device 500 of the learning model 501 for estimating the abnormality of the production line PL (step S105). Then, the collecting device 10 repeats the processing from step S101.

Further, heretofore, as the various sensors S, the vibration sensor sr_a, the pressure sensor sr_p, and the temperature sensor sr_ T r have been exemplified, but the types of sensors are not limited. Thus, the sensor may be any sensor provided in the absorbent article production line PL, and may be, for example, a tension sensor for measuring the tension of the continuous web. In the case of a tension sensor, it is conceivable that the change in measured value is slow, and therefore, it is sufficient to consider a low-speed collection system.

[ 6. Elsewhere ]

All or a part of the above-described processing described as the processing performed automatically may be performed manually. All or a part of the processing described as the manually performed processing may be automatically performed by a known method. Further, regarding the processing procedures, specific names, and information including various data and parameters shown in the above-described documents and drawings, any changes can be made unless otherwise specified. For example, the various information shown in the figures is not limited to the information shown in the figures.

The components of each illustrated apparatus are functionally conceptual, and are not necessarily physically configured as illustrated. That is, the specific manner of distribution/integration of the respective devices is not limited to the illustrated manner. The respective constituent elements may be distributed and integrated in all or a part of the respective constituent elements in arbitrary units functionally or physically according to various loads, use conditions, and the like. The above-described processes may be appropriately combined and executed within a range not contradictory to each other.

[ 7. Hardware Structure ]

The collection device 10 according to the above embodiment is realized by a computer 1000 having a configuration as shown in fig. 15, for example. Fig. 15 is a diagram showing an example of a hardware configuration. The computer 1000 is connected to an output device 1010 and an input device 1020, and a computing device 1030, a cache 1040 as a primary storage device, a memory 1050 as a secondary storage device, an output IF (Interface) 1060, an input IF 1070, and a network IF 1080 are connected via a bus 1090.

The arithmetic device 1030 operates based on the program stored in the buffer 1040, the memory 1050, the program read from the input device 1020, and the like, and executes various processes. The buffer 1040 is a buffer temporarily storing data used by the arithmetic device 1030 for performing various operations, such as a RAM. The Memory 1050 is a storage device for registering data and various databases used for various operations by the operation device 1030, and is a Memory implemented by a ROM (Read Only Memory), HDD (Hard Disk Drive), flash Memory, or the like.

The output IF 1060 is an interface for transmitting information to be output to the output device 1010 for outputting various information, such as a monitor and a printer, and can be realized by a standard connector such as USB (Universal Serial Bus: universal serial bus), DVI (Digital Visual Interface: digital video interface), HDMI (registered trademark) (High Definition Multimedia Interface: high-definition multimedia interface), or the like. On the other hand, the input IF 1070 is an interface for receiving information from various input devices 1020 such as a mouse, a keyboard, and a scanner, and is implemented by USB, for example.

For example, the input device 1020 may be implemented by a device for reading information from an Optical recording medium such as a CD (Compact Disc), DVD (Digital Versatile Disc: digital versatile Disc), PD (Phase change rewritable Disk: phase change rewritable Optical Disc), a Magneto-Optical recording medium such as MO (Magneto-Optical Disc), a tape medium, a magnetic recording medium, or a semiconductor memory. The input device 1020 may be implemented by a storage medium such as a USB memory.

The network IF 1080 has the following functions: data is received from other devices via the network N and transmitted to the arithmetic device 1030, and data generated by the arithmetic device 1030 is transmitted to other devices via the network N.

Here, the arithmetic unit 1030 controls the output device 1010 and the input device 1020 via the output IF 1060 and the input IF 1070. For example, the arithmetic device 1030 loads a program from the input device 1020 and the memory 1050 onto the buffer 1040, and executes the loaded program. For example, when the computer 1000 functions as the collecting device 10, the computing device 1030 of the computer 1000 executes a program loaded on the buffer 1040, thereby realizing the functions of the high-speed collecting unit 12, the low-speed collecting unit 13, and the transmitting unit 14.

Embodiments of the present application are described in detail above based on the drawings. However, these embodiments are merely examples, and the embodiments of the present application can be implemented in other forms, which are represented by the forms described in the columns of the disclosure, and which are modified or improved based on the technical common knowledge of those skilled in the art. The "portion (section, module, unit)" can be interpreted as "means", "circuit", or the like.

Claims

1. A collecting device for manufacturing an absorbent article, comprising:

a first collecting unit having a main collecting unit and a sub-collecting unit connected to the main collecting unit, the first collecting unit collecting data of a predetermined sensor among a plurality of sensors provided in a production line of absorbent articles at a first speed;

A second collecting unit having a main collecting unit and a sub-collecting unit connected to the main collecting unit, the second collecting unit collecting data of sensors other than the predetermined sensor at a second speed lower than the first speed; and

and a transmitting unit configured to, in the first collecting unit, cause each of the sub-collecting units to synchronously sample data by notifying each of the sub-collecting units of a trigger for sampling data at a predetermined collection timing, and in the second collecting unit, cause each of the sub-collecting units to synchronously sample data by remotely controlling each of the sub-collecting units at the predetermined collection timing, the transmitting unit transmitting the data obtained by sampling to a generating device that generates a learning model for estimating an abnormality of the production line as teacher data.

2. The absorbent article-related collection assembly of claim 1,

the first collecting portion and the second collecting portion collect data of sensors having correlation with each other in the manufacture of the absorbent article.

3. The collecting device according to claim 1 or 2 in connection with the manufacture of absorbent articles, characterized in that,

the first collection portion collects at least data of the vibration sensor.

4. The collecting device according to claim 1 or 2 in connection with the manufacture of absorbent articles, characterized in that,

the second collection unit collects data of at least one of the pressure sensor and the temperature sensor.

5. The collecting device according to claim 1 or 2 in connection with the manufacture of absorbent articles, characterized in that,

in the first and second collecting parts, the main collecting part is daisy-chained with more than one auxiliary collecting part,

at least the first collecting portion of the first collecting portion and the second collecting portion is synchronously controlled so that the main collecting portion and the sub-collecting portion synchronously collect data.

6. The absorbent article-related collection assembly of claim 5,

the first collecting section and the second collecting section perform synchronization control so that the main collecting section and the sub collecting section collect data at the same time on the time axis.

7. The absorbent article-related collection assembly of claim 5,

the production line has a reference for determining the phase angle of the production line,

one revolution of the fiducial device corresponds to the length of one piece of the absorbent article,

the first collecting unit and the second collecting unit perform synchronization control so that the main collecting unit and the sub-collecting unit collect data when the reference device indicates a specific phase angle.

8. The collecting device according to claim 1 or 2 in connection with the manufacture of absorbent articles, characterized in that,

the first collecting unit and the second collecting unit start collecting data in synchronization with each other.

9. The collecting device according to claim 1 or 2 in connection with the manufacture of absorbent articles, characterized in that,

the production line has a plurality of processing units for processing a continuous product as a continuous body at different positions, the continuous product being a processing source of the absorbent article,

the first collecting part and the second collecting part collect data of the processing part respectively.

10. A collecting method in connection with the manufacture of an absorbent article, comprising the steps of:

A first collection step of collecting data of a predetermined sensor among a plurality of sensors provided in a production line of absorbent articles at a first speed by using a first collection unit having a main collection unit and a sub-collection unit connected to the main collection unit; and

a second collecting step of collecting data of sensors other than the predetermined sensor at a second speed lower than the first speed by a second collecting unit having a main collecting unit and a sub collecting unit connected to the main collecting unit;

wherein the first collecting unit causes the sub-collecting units to synchronously sample data by notifying the sub-collecting units of a trigger for data sampling at a predetermined collecting timing, and the second collecting unit causes the sub-collecting units to synchronously sample data by remotely controlling the sub-collecting units of the sub-collecting units at the predetermined collecting timing,

the collection method further includes a transmission step of transmitting the sampled data as teacher data to a generation device that generates a learning model for estimating an abnormality of the production line.

11. A computer-readable recording medium, characterized in that a program for causing a computer to execute:

a second collecting step of collecting data of sensors other than the predetermined sensor at a second speed lower than the first speed by a second collecting section having a main collecting section and a sub collecting section connected to the main collecting section;

the program further causes a computer to execute a transmission process in which data obtained by sampling is transmitted as teacher data to a generation device that generates a learning model for estimating an abnormality of the production line.