CN113101057A

CN113101057A - Collection device, collection method, and computer-readable recording medium

Info

Publication number: CN113101057A
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: 2021-07-13
Anticipated expiration: 2041-01-07
Also published as: JP2021111159A; CN113101057B; 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 abnormity occurred in a manufacturing device for manufacturing an absorbent article. The present application relates to a collecting device for manufacturing an absorbent article, comprising: a first collecting 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 collecting unit that collects data of sensors other than the predetermined sensor at a second speed lower than the first speed; and a transmission unit that transmits the data collected by the first collection unit and the second collection unit to a generation device that generates a learning model for estimating an abnormality of the production line using the collected data as teacher data.

Description

Collection device, collection 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 techniques are known: in a manufacturing apparatus for manufacturing an absorbent article, product data and equipment data are associated with each other, 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 identified, and a manufacturing process that causes the abnormality in the product is identified.

Documents of the prior art

Patent document

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 technology, there is room for improvement in that the accuracy of estimating an abnormality occurring in a manufacturing apparatus for manufacturing an absorbent article is improved. For example, the above-described technology has a problem that a manufacturing apparatus for manufacturing an absorbent article cannot estimate beforehand an abnormality that may occur.

As an example of a method of estimating the abnormality in advance, the abnormality may be estimated by collecting equipment data during manufacturing and using a learning model in which the collected equipment data is generated as teacher data. Therefore, when a learning model with high accuracy of estimating an abnormality is generated in relation to an apparatus for manufacturing an absorbent article, it is necessary to efficiently collect device data to be teacher data.

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

Means for solving the problems

The present application relates to a collecting device for manufacturing an absorbent article, comprising: a first collecting 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 collecting unit that collects data of sensors other than the predetermined sensor at a second speed lower than the first speed; and a transmission unit that transmits the data collected by the first collection unit and the second collection unit to a generation 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 embodiment, teacher data of a learning model for estimating an abnormality occurring in a manufacturing apparatus for manufacturing an absorbent article can be efficiently 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 portion.

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

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

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

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

Fig. 8 is a diagram showing an example of a connection structure of 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 unit.

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

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

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

Fig. 13 is a sequence diagram of the high-speed collection process performed by the high-speed collection unit and the low-speed collection process performed by the low-speed collection unit.

Fig. 14 is a flowchart showing a processing procedure executed by the collection 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 collection device; 12: a high-speed collection unit; 13: a low-speed collection unit; 14: a transmission unit; 121: a main collection unit; 122: a sub-collecting section; 131: a main collection unit; 132: a sub-collecting section; 300: a processing section; 500: a generating device; 501: learning a model; d: the diaper 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 become apparent from the description of the present specification and the accompanying drawings.

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

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

In addition, in the collecting device relating to the manufacture of the absorbent article, the first collecting unit and the second collecting unit 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 the manufacture of an absorbent article having a characteristic that the correlation between processes is high, although the form of each process to be performed is often different, data can be collected efficiently in consideration of the correlation between the processes.

In addition, in the collecting device relating to the manufacture of the absorbent article, the first collecting unit 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 if the period is short can be sampled at high speed and with high resolution in accordance with the drastic change, and data useful for generation of a learning model can be collected.

In the collecting device relating to the manufacture 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 that changes slowly in a short period of time can be sampled at a low speed with a resolution corresponding to the slow change, and data useful for generation of a learning model can be collected.

In the collecting device related to the manufacture of the absorbent article, each of the first collecting unit and the second collecting unit has a main collecting unit and one or more sub-collecting units daisy-chained to the main collecting unit, and at least the first collecting unit of the first collecting unit and the second collecting unit is synchronously controlled so that the main collecting unit and the sub-collecting units synchronously collect data.

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

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

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

In the collecting device related to the manufacture of the absorbent article, the first collecting unit and the second collecting unit are controlled in synchronization such that the main collecting unit and the sub-collecting unit 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 the processing processes at a specific point in time of the production line synchronized with a specific phase angle of the production line, in other words, synchronized with an arbitrary position of the same absorbent article corresponding to the specific phase angle. That is, a specific position of the absorbent article can be selectively set, and data at an arbitrary time point based on the setting can be collected. Further, the generation device can be provided with teacher data useful for a learning model with high estimation accuracy of the generation abnormality based on the data.

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

According to such a collection device, data indicating the correlation between different processes 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, the generation device can be provided with teacher data useful for a learning model with high estimation accuracy of the generation abnormality based on the data.

In addition, the production line has a plurality of processing units that process a continuous product as a continuous body, which is a processing source of the absorbent article, at different positions, and in the collecting device related to the manufacture of the absorbent article, the first collecting unit and the second collecting unit collect data of the processing units, respectively.

According to such a collecting device, it is possible to collect data indicating the correlation between a plurality of processing units that perform processing of a continuous product at different positions of a production line while keeping balance with each other. Further, the generation device can be provided with teacher data useful for a learning model with high estimation accuracy of the generation abnormality 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 manufacture 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 manufacture of the absorbent article are not limited to those in the embodiment. In the following embodiments, the same portions are denoted by the same reference numerals, and redundant description thereof is omitted.

[ embodiment ]

[ 1. construction example of production line ]

First, before describing the collecting device 10 according to the embodiment, a configuration example of a line PL as an example of a manufacturing device 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 line PL according to the embodiment is a series of manufacturing processes for manufacturing absorbent articles. The absorbent article is, for example, a diaper, a sanitary napkin, or a diaper. Hereinafter, the description will be given mainly by taking a case of manufacturing the diaper D as an absorbent article as an example.

In the line PL, a plurality of processing processes are performed for processing a continuous sheet (may be referred to as a "continuous web" instead) which is a processing source of the diaper D at different positions. Further, as used herein, "processing" refers to all means applied to the continuous web prior to the final manufacture of a diaper D.

Therefore, the case where the "processing" mark after the processing such as disposing the absorbent body in order on the continuous web, forming the continuous web into a predetermined shape, and cutting the continuous web on a piece-by-piece basis is finally left on the one diaper D includes the case where the "processing" mark after the material splicing processing such as connecting the materials such as the continuous web to each other without material interruption is finally left on the one diaper D.

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

As shown in fig. 1, the production line PL includes a core wrap conveyance path R1, an absorber conveyance path R2, a fastener tape conveyance path R3, a top sheet conveyance path R4, a target tape 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, a conveying roller and the like. The conveyor belt is, for example, a normal conveyor belt having a spirally driven endless belt as a conveying surface, or a suction conveyor belt having a suction function on an outer peripheral surface of the endless belt.

In the core wrap conveyance path R1, the core wrap sheet Cs is unwound from the material roll 201 in which the core wrap sheet Cs is wound in a coil shape. That is, the core wrap sheet Cs as a continuous sheet is conveyed in the core wrap conveyance path R1. The core wrap sheet Cs is a liquid permeable sheet member such as tissue paper or nonwoven fabric.

In the absorber conveyance path R2, the absorber Ab is placed on the core wrap sheet Cs conveyed from the core wrap conveyance path R1. The absorbent body Ab is placed on the core wrap sheet Cs by the fiber accumulating drum 202 rotating about the rotation axis in the CD direction. The absorber Ab is a liquid absorber material, for example, pulp fiber or Super Absorbent Polymer (SAP).

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

Further, a cutter device 203 is provided in the absorber conveyance path R2. The cutter 203 cuts the core wrap sheet Cs on which the absorber Ab is placed. The cutter device 203 includes a cutter roller 203a and an anvil roller 203 b.

The cutter roller 203a rotates around a rotation axis along the CD direction. A cutter blade is provided in the cutter roller 203a in the direction of the rotation axis. The anvil roll 203b rotates about a rotation axis along the CD direction.

The cutter device 203 pinches and cuts the core wrap sheet Cs on which the absorbent body Ab is placed by the cutter roller 203a and the anvil roller 203 b. Further, the cutting device 203 cuts the core-envelope sheet Cs at a position between the adjacent absorbers Ab.

In the absorber conveyance path R2, the core wrap sheet Cs cut by the cutter 203 is conveyed forward.

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

In the front sheet conveyance path R4, the front sheet Ts is unwound from the roll 205 in which the front sheet Ts is wound in a loop shape. That is, the front sheet Ts as a continuous sheet is conveyed in the front 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.

Further, a slide cutter 206 is provided in the front sheet conveyance path R4. The slide cutter 206 cuts the fastener tape Ft1 conveyed in the fastener tape conveying path R3. The slide cutter 206 includes a cutter roll 206a and an anvil roll 206 b.

The cutter roller 206a rotates around a rotation axis along the CD direction. The cutter roller 206a is provided with a cutter blade (not shown) for cutting the fastening tape Ft1 as a continuous sheet into a single fastening tape Ft 2. The cutting blade is provided in plurality in the rotational direction.

The anvil roll 206b adsorbs and holds the fastening tape Ft1 as a continuous body coated with the adhesive. 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 cutter blade of the cutter roll 206 a.

The slide cutter device 206 sucks the fastening tape Ft1 as a continuous sheet coated with the adhesive by the anvil roller 206b, and cuts the fastening tape Ft1 as a continuous sheet by the cutter roller 206a to generate a fastening tape Ft2 in a single sheet shape.

The slide cutter 206 sucks the fastener tape Ft2 cut into a single sheet by the anvil roller 206b, and conveys the fastener tape Ft2 in a single sheet to a position facing the top sheet Ts.

In the surface sheet conveyance path R4, a temporary pressing roller 207 is provided below the anvil roller 206 b. The temporary pressing roller 207 is disposed to face the anvil roller 206b with the surface sheet Ts therebetween.

The temporary pressing roller 207 rotates around a rotation axis along the CD direction. The temporary pressing roller 207 presses the anvil roller 206b at a timing when the fastening tape Ft2 sucked to the anvil roller 206b is conveyed to the upper side of the surface sheet Ts. Thereby, the surface sheet Ts as a continuous body is pressed against the anvil roller 206b, and the fastening tape Ft2 is bonded to the surface sheet Ts with the adhesive applied to the fastening tape Ft 2. Thereby, the fastening tape Ft2 is temporarily fixed to the surface sheet Ts.

Further, the main pressing device 208 is provided in the surface sheet conveyance path R4. The main pressing device 208 is provided downstream of the provisional pressing roller 207 in the conveyance direction of the surface sheet Ts in the surface sheet conveyance path R4.

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

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

Further, an adhesive application device 209 is provided in the front sheet conveyance path R4. The adhesive application device 209 is provided downstream of the main pressing device 208 in the conveyance direction of the surface sheet Ts. The adhesive application device 209 applies an adhesive to the top sheet Ts to which the fastening tape Ft2 is permanently fixed. The adhesive application 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 conveyance path R5. In the target tape transport path R5, the adhesive is applied to the target tape Tt1 by the adhesive application 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 shape. 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.

Further, a slide cutter device 212 is provided in the back sheet conveyance path R6. The slide cutter 212 cuts the target tape Tt1 conveyed through the target tape conveying path R5. The slide cutter device 212 includes a cutter roller 212a and an anvil roller 212 b.

The cutter roller 212a rotates about a rotation axis along the CD direction. The cutter roller 212a is provided with a cutter blade (not shown) for cutting the target tape Tt1 as a continuous sheet into a single target tape Tt 2. The cutting blade is provided in plurality in the rotational direction.

The anvil roll 212b adsorbs and holds the target tape Tt1 as a continuous body coated with the 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 cutter blade of the cutter roll 212 a.

The slide cutter 212 sucks the target tape Tt1 as a continuous sheet on which the adhesive is applied by the anvil roller 212b, and cuts the target tape Tt1 as a continuous sheet by the cutter roller 212a to generate a single sheet of target tape Tt 2.

The slide cutter 212 sucks the target tape Tt2 cut into a single sheet by the anvil roller 212b, and conveys the target tape Tt2 in a single sheet to a position facing the back sheet Bs.

In the back sheet conveyance path R6, a temporary pressing roller 213 is provided below the anvil roller 212 b. The temporary pressing roller 213 is disposed to face the anvil roller 212b with the back sheet Bs therebetween.

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

Further, the main pressing device 214 is provided in the rear sheet conveyance path R6. 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 formal pressing device 214 formally fixes the target tape Tt2 temporarily fixed to the back sheet Bs. The main pressing device 214 sandwiches 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 adhesive application device 215 is provided in the back sheet conveyance path R6. The adhesive application device 215 is provided downstream of the main pressing device 214 in the conveyance direction of the back sheet Bs. The adhesive application device 215 applies an adhesive to the back sheet Bs to which the target tape Tt2 is permanently fixed. The adhesive application device 215 applies an adhesive to the skin side surface of the back sheet Bs.

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

Specifically, at the joining position Mp, the back sheet Bs as a continuous sheet is joined from the non-skin side of the absorbent body Ab, and the top sheet Ts as a continuous sheet is joined from the skin side of the absorbent body Ab. Since the front sheet Ts and the back sheet Bs are coated with an adhesive, the front sheet Ts, the absorber Ab, and the back sheet Bs are integrally joined together with the adhesive, thereby producing a base sheet BMs as a continuous sheet. In the base sheet BMs, the absorbers Ab are arranged continuously in the front-back direction at a product pitch P corresponding to the length of one diaper D.

Fig. 1 shows a state in which the base sheet BMs located on the downstream side of the merging position Mp in the conveying direction of the base sheet BMs is separated from the top sheet Ts, the absorber Ab, and the back sheet Bs.

The base sheet BMs is conveyed in the base sheet conveyance 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 part 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 includes a cutting roller 216a and an anvil roller 216 b.

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

The

rollers

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

Further, a tail end cutter 217 is provided in the base sheet conveyance path R7. The tail-end cutter 217 is provided downstream of the leg hole cutter 216 in the conveyance direction of the base sheet BMs in the base sheet conveyance path R7.

The tail-end cutter 217 cuts the base sheet BMs conveyed through the base sheet conveying path R7. The tail cutter 217 includes a cutter roller 217a and an anvil roller 217 b.

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

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

In this manner, in the production line PL, various processing devices (hereinafter referred to as "processing units 300") related to the production of the diaper D, such as the material rolls 201, 205, 211, the fiber accumulating drum 202, the cutting device 203, the

adhesive application 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, operate in conjunction while holding the continuous web at a predetermined tension, thereby producing the diaper D.

In other words, the diaper D is manufactured by a plurality of processing units 300 provided at different positions in the line PL, and by performing processing in which the absorbent bodies Ab are sequentially arranged, formed into a predetermined shape, and cut in units of one diaper D while the continuous web is conveyed at a high speed while maintaining a predetermined tension, and the form is different and the processing is linked. That is, in the line PL, the forms of the respective processing treatments are different in many cases, but the correlation between the processing treatments is high, and the processing treatments in the downstream steps are easily affected by the processing treatments in the upstream steps.

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

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

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

[ 2 ] an example of the configuration of the collection 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, including fig. 2, but only components necessary for explaining the features of the present embodiment are shown in these block diagrams, and descriptions of general components are omitted.

In other words, each component illustrated in the block diagrams is functionally conceptual, and is not necessarily physically configured as illustrated in the drawings. For example, the specific form of distribution and integration of the respective devices is not limited to the form shown in the drawings, and all or a part of them may be configured to be functionally or physically distributed and integrated in arbitrary units according to various loads, usage conditions, and the like.

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

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

The collection device 10, the display unit 20, and the production line PL are connected to each other so as to be communicable via a network 100 as a communication line, which is wired or wireless. The Network 100 is, for example, an intranet constituted by a LAN (Local Area Network) or the like.

The collection apparatus 10 and the generation apparatus 500 are connected to each other so as to be communicable via a network N as a communication line, which is wired or wireless. The Network N is a communication Network such as a LAN, a WAN (Wide Area Network), a telephone Network (mobile telephone Network, fixed telephone Network), a local IP (Internet Protocol) Network, or the Internet.

[ 2-1. about the generating device ]

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

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

In addition, the generation device 500 transmits the generated learning model 501 to the production line PL via the collection device 10, for example. The production line PL inputs real-time equipment data during the manufacturing process to the transmitted learning model 501, for example, thereby estimating an abnormality of the production line PL.

Further, the generation device 500 may not transmit the learning model 501 but may hold it, and the generation device 500 may estimate an abnormality of the production line PL based on real-time data in the manufacturing process, which is loaded from the collection device 10 via the network N at any time, for example.

[ 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), a hard disk, or an optical disk, and stores a collection DB (database) 11a in the example of fig. 2.

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", and collects data of a predetermined sensor Sr among a plurality of sensors Sr provided in the production line PL at a first speed, and stores the collected data in the collection DB 11 a.

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 to be collected by the high-speed collection unit 12 at a second speed lower than the first speed, and stores the collected data in the collection DB 11 a. Further, the high speed collecting portion 12 and the low speed collecting portion 13 collect data of the sensors Sr having correlation with each other in the manufacturing process of the diaper D. The configuration examples of the high-speed collecting unit 12 and the low-speed collecting unit 13 will be described in detail with reference to fig. 5 and subsequent drawings.

The transmission unit 14 acquires data collected by the high-speed collection unit 12 and the low-speed collection unit 13 from the collection DB 11a, and transmits the data to the generation device 500 via the network N.

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

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), a notebook PC, or a PDA (Personal Digital Assistant). The display unit 20 may be a Wearable Device (Wearable Device) as a glasses-type or clock-type information processing terminal.

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 devices related to the production of the diaper D, such as the material rolls 201, 205, 211, the fiber accumulating drum 202, the cutting device 203, the

adhesive application 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 portion 300 is connected to each of the sensors Sr (Sr-1, Sr-2, Sr-3 …). The reference encoder RE is an example of a reference device for measuring the phase angle of the production line PL.

[ 2-3. relating to various sensors and reference encoders ]

Here, the various sensors Sr and the reference encoder RE will be explained. 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 device 203 includes the cutter roll 203a and the anvil roll 203b, as shown in fig. 3. In addition, the cutting device 203 has a motor 203c and an encoder 203 d.

The motor 203c is a drive source for rotating the cutter roller 203 a. The encoder 203d is provided at an axial end of the motor 203c, and measures a rotation angle of the motor 203c (i.e., a rotation angle of the cutter roller 203 a).

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

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

This 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 coordinated 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. In this way, one rotation of the reference encoder RE corresponds to the length of one diaper D, and the phase angle of the production line PL is measured in accordance with the length of the one diaper.

Note that, although the case where the encoder 203d of the cutting device 203 is the reference encoder RE has been described here, an encoder provided in another processing unit 300 may be the reference encoder RE.

For example, any of the encoders provided in the

slide cutters

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 trailing edge cutting device 217 may be used as the reference encoder RE. Further, any of the encoders provided in the conveyance devices forming the conveyance paths R2, R4, R6, R7, and the like may be used 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 the vibration of the cutting device 203 during the manufacturing process of the diaper D. The pressure sensor Sr _ P measures the pressure of the cutter 203 in the process of producing the diaper D, for example, the pressure when the core wrap sheet Cs on which the absorber Ab is placed is pinched and cut. The temperature sensor Sr _ T measures the temperature of the cutting device 203 during the manufacture of the diaper D.

[ 3. construction example of high-speed collecting section ]

Next, a configuration example of the high-speed collecting 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 configuration of the high-speed collecting unit 12 according to the embodiment.

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

The main collection unit 121 and the sub collection unit 122 are each realized by, for example, a PLC (Programmable Logic Controller). The main collecting unit 121 comprehensively controls the high-speed collecting process performed by the high-speed collecting unit 12.

The sub-collector 122 samples data of, for example, the vibration sensor Sr _ a among the various sensors Sr connected to the processing units 300. Note that, although fig. 5 shows an example in which the sub-collecting unit 122 corresponds to the vibration sensor Sr _ a one-to-one, the sub-collecting unit 122 may correspond to the vibration sensor Sr _ a1 one-to-many.

The main collector 121 notifies the sub-collectors 122 of a trigger for data sampling at a predetermined collection timing, and causes all the sub-collectors 122 to sample the data of the vibration sensor Sr _ a at high speed in synchronization with each other at the same time on the time axis.

In the high-speed sampling described here, when the rotation speed of a predetermined motor in the production line PL is equal to or higher than a predetermined value during the production of the diaper D, the high-speed sampling is performed under the conditions that the sampling cycle is 80 microseconds and the number of sampling points is 22500 points, for example, every 30 minutes for 2 seconds.

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

Thus, for example, data of each vibration sensor Sr _ a that has changed drastically even if the period is short can be sampled at high speed and 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-collecting unit 122 collects data of the vibration sensor Sr _ a, but the main collecting unit 121 and the sub-collecting unit 122 may sample data of the vibration sensor Sr _ a corresponding to the main collecting unit 121.

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 collecting unit 121 includes a control unit 121 a. The control Unit 121a is a controller (controller), and is implemented by executing various programs stored in a Memory device inside the main collection Unit 121 using a RAM (Random Access Memory) as a work area, such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The control unit 121a can be realized by an Integrated Circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

The control unit 121a has an acquisition unit 121aa, a generation unit 121ab, and a notification unit 121ac, and realizes or executes the functions and functions 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 here is strictly the trigger generation timing for the main collection unit 121. Further, the acquisition unit 121aa acquires a reference signal indicating the phase angle of the production 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 by each sub-collection unit 122. The trigger includes, for example, the condition of the sampling described above, and the like. The notification unit 121ac notifies the trigger generated by the generation unit 121ab to each of the sub-collection units 122.

Next, as shown in fig. 7, the sub-collecting unit 122 includes a control unit 122 a. The control unit 122a is a controller, like the control unit 121a, and is realized by executing various programs stored in a memory device inside the sub-collection unit 122 using a RAM as a work area, such as a CPU or an MPU. The control unit 122a can be realized by an integrated circuit such as an ASIC or an FPGA.

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

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

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

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

For example, as shown in FIG. 9, three sub-collectors 122-1, 122-2, and 122-3 are connected to the main collector 121, and the main collector 121 is connected to the main collector 121 at time t_n-4A trigger is generated and notified. Thus, for example, the sub-collecting section 122-1 at time t_n-3A trigger is acquired. However, the main collecting unit 121 is at the time t_n-3The sub-collection unit 122-1 does not start sampling data.

Likewise, for example, the sub-collector 122-2 at time t_n-2A trigger is acquired. However, the main collecting unit 121 is at the time t_n-2The sub-collection unit 122-2 does not start sampling data.

Also, for example, the sub-collecting section 122-3 at time t_n-1A trigger is acquired. Then, the main collecting unit 121 triggers the trigger to start collecting the data at the time t_n-1At a time t of approximately the same time_nThe sub-collection unit 122 starts sampling data at a time.

By performing synchronization control so as to collect data synchronously at the same time on the time axis in this manner, data indicating the correlation between the processing units 300 at a specific point in time in the production line PL can be collected. Based on this, the generation device 500 can be provided with teacher data useful for the learning model 501 having high estimation accuracy of the generation abnormality.

Here, the synchronous control is performed so that data are collected synchronously at the same time on the time axis, but the synchronous 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_nThe timing is started for the first sample.

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

For example, as shown in FIG. 10, the main collecting part 121 is at time t_nAfter that, and time t at which the phase angle of the production line PL is first returned from 360 DEG to the origin position of 0 DEG_n+1The sub-collection unit 122 starts sampling data at a time.

This enables data to be collected which indicates 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 the one diaper D. Based on this, the generation device 500 can be provided with teacher data useful for the learning model 501 having high estimation accuracy of the generation abnormality.

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

[ 4 ] construction example of Low-speed collecting section ]

Next, a configuration example of the low-speed collecting 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 configuration of the low-speed collection unit 13 according to the embodiment.

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

The main collecting unit 131 and the sub-collecting unit 132 can be realized by PLC, for example, as in the main collecting unit 121 and the sub-collecting unit 122 of the high-speed collecting unit 12. However, as another example, the main collection unit 131 is implemented by a PLC, and the sub-collection unit 132 is implemented by a dedicated device dedicated to sampling of data.

The main collecting unit 131 comprehensively controls the low-speed collecting process performed by the low-speed collecting unit 13. The sub-collecting 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-collecting portion 132 and the pressure sensor Sr _ P are arranged in a ratio of 1: 1, the sub-collecting portion 132 and the pressure sensor Sr _ P may be arranged in a ratio of 1: n (n is a natural number) corresponds to the above-described method.

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

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

The main collection unit 131 also stores the data of the pressure sensor Sr _ P sampled at a low speed by each sub collection unit 132 in the collection DB 11 a.

Thus, for example, data of each pressure sensor Sr _ P that changes slowly in a short period can be sampled at a low speed with 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 shown as an example, but the object of low-speed collection may be the temperature sensor Sr _ T since the sensor Sr may measure data that changes relatively slowly for a predetermined period.

A 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 configuration 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 131 a. The control unit 131a is a controller as in the control units 121a and 122a described above, and is realized by executing various programs stored in a memory device inside the main collection unit 131 using a RAM as a work area, such as a CPU or an MPU. The control unit 131a can be realized by an integrated circuit such as an ASIC or an FPGA.

The control unit 131a includes an acquisition unit 131aa and a remote control unit 131ab, and realizes or executes the functions and functions 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. Further, the acquisition unit 131aa acquires a reference signal indicating the phase angle of the production 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 of the sub-collection units 132, which are dedicated devices for sampling data, so that the sub-collection units 132 start sampling data all 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 sampling of data collectively when the production 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 the synchronous 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 synchronous control.

In the description with reference to fig. 11 and 12, the main collection unit 131 of the low-speed collection unit 13 is realized by a PLC, and the sub-collection unit 132 is realized by a dedicated device dedicated to sampling of data. For example, the main collecting unit 131 and the sub-collecting unit 132 may be implemented by 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.

In addition, although the synchronous control of data collection performed inside 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 data collection in synchronization with each other. This point will be explained next. Fig. 13 is a sequence diagram of the high-speed collection process performed by the high-speed collection unit 12 and the low-speed collection process performed by the low-speed collection unit 13.

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

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

Further, for example, considering delay due to a processing load, a simple packet corresponding to ACK (Acknowledgement)/NAK (Negative Acknowledgement) or the like is exchanged between the high-speed collecting unit 12 and the low-speed collecting unit 13 before actually starting collecting data, thereby achieving timing synchronization. Further, the timing synchronization may be achieved by correcting the timing of one of the high-speed collecting unit 12 and the low-speed collecting unit 13 with reference to the other.

As described above, by starting the collection of data in synchronization with each other by the high-speed collection unit 12 and the low-speed collection unit 13, it is possible to 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. Based on this, the generation device 500 can be provided with teacher data useful for the learning model 501 having high estimation accuracy of the generation abnormality.

[ 5. treatment Process ]

Next, a process performed by the collecting apparatus 10 according to the embodiment will be described with reference to fig. 14. Fig. 14 is a flowchart showing a processing procedure executed 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 timing is collection timing (step S101). Here, if it is not the collection timing (no in step S101), the processing from step S101 is repeated.

In addition, if it is the collection timing (yes in step S101), the high-speed collection unit 12 collects data of the vibration sensor Sr _ a at the first speed at high 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 collected data in the collection DB 11a (step S104).

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

Note that, although the vibration sensor Sr _ a, the pressure sensor Sr _ P, and the temperature sensor Sr _ T r have been described as examples of the various sensors S, the types of sensors are not limited. Therefore, any sensor may be used as long as it is installed in the line PL of absorbent articles, and for example, a tension sensor for measuring the tension of a continuous web may be used. In the case of a tension sensor, since it is conceivable that the change in the measured value is slow, it is sufficient to regard the system as a low-speed collection system.

[ 6, other ]

All or a part of the above-described processes, which are automatically performed, may be manually performed. All or a part of the processes described as the processes performed manually may be automatically performed by a known method. In addition, with respect to the above-described documents, the processing procedures shown in the drawings, specific names, information including various data, parameters, and the like, unless otherwise specified, can be arbitrarily changed. For example, the various information shown in the figures is not limited to the information shown in the figures.

The components of each illustrated device are functionally conceptual, and are not necessarily physically configured as illustrated in the drawings. That is, the specific form of distribution/integration of the respective devices is not limited to the form shown in the drawings. Further, all or a part of the components may be functionally or physically distributed or integrated in arbitrary units according to various loads, usage conditions, and the like. The above-described processes can be performed in appropriate combinations within a range not inconsistent with each other.

[ 7. hardware construction ]

The collecting apparatus 10 according to the above-described 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 the hardware configuration. The computer 1000 is connected to an output device 1010 and an input device 1020, and an arithmetic device 1030, a buffer 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 unit 1030 operates based on programs stored in the cache 1040 and the memory 1050, programs read from the input unit 1020, and the like, and executes various processes. The buffer 1040 is a buffer such as a RAM that temporarily stores data used for various operations performed by the arithmetic device 1030. The Memory 1050 is a storage device for registering data used for various operations performed by the operation device 1030 and various databases, and is implemented by a ROM (Read Only Memory), an HDD (Hard Disk Drive), a flash Memory, or the like.

The output IF 1060 is an Interface for transmitting information to be output to an output device 1010 such as a monitor or a printer for outputting various information, and may be realized by a standard connector such as a USB (Universal Serial Bus), a DVI (Digital Visual Interface), or an HDMI (High Definition Multimedia Interface). 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, for example, USB.

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

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

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

The embodiments of the present application are described above in detail based on the drawings. However, these embodiments are merely illustrative, and the embodiments of the present application can be implemented in other forms such as those described in the column of the disclosure of the invention, and various modifications and improvements can be made based on the technical common knowledge of those skilled in the art. The "section (module, unit)" can be interpreted as "unit", "circuit", and the like.

Claims

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

a first collecting 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 collecting unit that collects data of sensors other than the predetermined sensor at a second speed lower than the first speed; and

and a transmission unit that transmits the data collected by the first collection unit and the second collection unit to a generation device that generates a learning model for estimating an abnormality of the production line using the collected data as teacher data.

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

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

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

the first collecting section collects at least data of the vibration sensor.

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

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

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

the first and second collecting units each include a main collecting unit and one or more sub-collecting units daisy-chained to the main collecting unit,

at least the first collecting unit of the first and second collecting units performs synchronization control so that the main collecting unit and the sub-collecting unit synchronously collect data.

6. The collecting device in connection with the manufacture of absorbent articles as claimed in claim 5,

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 at the same time on a time axis.

7. The collecting device in connection with the manufacture of absorbent articles as claimed in claim 5,

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

one rotation of the fiducial corresponds to the length of one of the absorbent articles,

the first and second collecting units 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 in connection with the manufacture of absorbent articles according to claim 1 or 2,

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

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

the production line has a plurality of processing sections that process a continuous product as a continuous body, which is a processing source of the absorbent article, at different positions,

the first collecting unit and the second collecting unit collect data of the processing unit, respectively.

10. A collecting method relating to manufacturing of an absorbent article, characterized by 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;

a second collecting step of collecting data of sensors other than the predetermined sensor at a second speed lower than the first speed; and

a transmission step of transmitting the data collected in the first collection step and the second collection step to a generation device that generates a learning model for estimating an abnormality of the production line using the collected data as teacher data.

11. A computer-readable recording medium characterized by storing a program for causing a computer to execute:

a transmission process of transmitting the data collected by the first collection process and the second collection process to a generation device that generates a learning model for estimating an abnormality of the production line using the data as teacher data.