JP2021095648A - Isolated motion identification device and sensing system of loading stimulus having the same, and learned model and estimation system related thereto - Google Patents

Abstract

To build a sensing system of an isolated motion by using a material of which the capacitance is varied by an approach of a target.SOLUTION: There is provided a sensing system which uses a computer 14 capable of monitoring an isolated motion by utilizing an electric signal generated corresponding to a motion of a target via an isolated motion identification device including portions 11, 12 consisting of substrates with a conductive polymer or carbons attached thereto and generating the electric signal corresponding to the motion of the target not in contact with the portions from the portions.SELECTED DRAWING: Figure 1

Description

The present invention relates to an motion sensor, a sensing means using the motion sensor, and a trained model and a guessing means related thereto.

For the purpose of crime prevention, etc., a heat ray sensor (human sensor) that can detect a person moving in the monitored space, an infrared beam sensor that can detect an intruder by blocking the infrared beam, and a camera Smart sensors and the like that can detect human movements and the like by using image recognition technology for input images are provided.

Under these circumstances, PEDOT-pTS (poly (3,4-ethylene-dioxythiophene) -p-toluenesulfonate) is known to have high conductive performance among conductive polymers. On the other hand, the types of base materials to which PEDOT-pTS can be attached are limited. The present inventors have invented an invention using silk as a base material to which PEDOT-pTS is attached, and have already filed a patent application (Patent Document 1 and Patent Document 2).

PEDOT-PSS (Poly (3,4-ethylenedioxythiophene) -polystyrene sulfonate) is also known as a conductive polymer having predetermined performance (Patent Documents 3 and 4).

WO2016 / 148249 International Pamphlet WO2016 / 031872 International Pamphlet WO2013 / 0737673 International Pamphlet Japanese Unexamined Patent Publication No. 2014-108134 Japanese Unexamined Patent Publication No. 9-11903 Special Publication No. 47-14043 Japanese Patent No. 3190314 Japanese Unexamined Patent Publication No. 2016-23389 Tokukousho 37-16853

"Basic knowledge of easy industrial textiles" (written by Tetsuya Kato and Yasushi Mukaiyama, published by Nikkan Kogyo Shimbun: 2011.1.28), p. 11

The material to which PEDOT-pTS using the above silk as a base material is attached is a very promising material because it has excellent affinity for living organisms as well as easy adhesion of this conductive polymer and excellent conductive performance. It was found that there is. Then, the specific use of the base material to which PEDOT-pTS and PEDOT-PSS were attached was further examined.

As a result, it was found that a material in which a conductive polymer or carbonaceous material is attached to a base material can detect static electricity of a target and is very suitable for an operation sensor application, and completed the present invention. did.

First, the present invention includes a portion to which a conductive polymer or carbonaceous material is attached to all or a part of the base material, and an electric signal corresponding to the movement of the object in a non-contact state with the portion is generated. Provided is a separation motion identification element (hereinafter, also referred to as an element of the present invention) generated from the above portion.

The "separation motion identification element" is an element that discriminates the movement in a non-contact state by the fluctuation of the electrical characteristic value in the sensor element. As the electrical characteristic value, the electric resistance value or the capacitance value is preferable, and the capacitance value is the most suitable.

The "non-contact state" means that there is some distance between the element and the subject of movement. In the separation motion identification element, one or two or more sensor elements are placed away from the subject (object) of the movement. For example, when the distance is a space, the sensor element and the object are approached by approaching the object. A new electric field is generated between the two, and this changes according to the movement of the object, so that the capacitance value of the sensor fluctuates. In addition, when the distance is between human skin and muscle (for example, when the element is placed on the skin and a change in blood flow is to be detected), an insulator is provided between the sensor element and the skin. It is possible to grasp the change in blood flow by detecting the change in capacitance in the sensor element according to the change due to the pulsation of blood flow.

The base material related to the sensor element portion of the element of the present invention is preferably a member of a material containing paper. In general, a material containing paper has a large capacitance, so that it is often suitable as a material for a separation motion identification sensor element. Japanese paper is suitable as the material containing paper. It is preferable that the member of the material containing paper has a substantially two-dimensional shape (including a sheet shape, a film shape, a knitted fabric, and a woven fabric) in a developed shape. Further, as the material of the base material, silk fiber, polyamide (nylon) fiber, polyester fiber and the like can be used in addition to the material containing paper. Further, not only a single layer but also a multi-layer can be used. Also in the case of these materials, it is preferable that the developed shape is a substantially two-dimensional shape (including a sheet shape, a film shape, a knitted fabric, and a woven fabric). Further, when the base material is a knitted fabric or a woven fabric, the yarn constituting at least a part thereof may be a top-twisted yarn or a false-twisted yarn to which a conductive polymer or charcoal is attached. When the developed shape of the base material is substantially two-dimensional, the conductive polymer or charcoal is attached to at least one of the two-dimensional planes.

Non-substantial parts of the element of the present invention, for example, a conductive material, an insulating material, a conductive connector, a cover material for covering the sensor element, an adhesive material for attaching the sensor element to another object, and for protecting the sensor element. Cushioning materials, fillers, and the like are also included in the elements of the present invention.

The element of the present invention is provided with two or more channel units facing each other with conductive polymers or carbon atoms attached to each other across a space, and an electric signal generated in response to the movement of an object in the space. It is preferable to transmit. Further, as a conductive polymer to be attached to the substrate, PEDOT-pTS (poly (3,4-ethylene-dioxythiophene) -p-toluenesulfonate) or PEDOT-PSS (Poly (3,4-ethylenedioxythiophene) -polystyrenesulfonate) Is preferable.

The "channel unit" as the number of separation motion identification elements is the number of channels that emit a single electrical signal and is consistent with the number of separation motion identification sensor elements used.

It is provided with a voltage application unit and a signal conversion unit that are electrically connected to a material to which a conductive polymer or charcoal is attached, and the signal conversion unit is separated by a space for the voltage applied in the voltage application unit. It is preferable that a predetermined electric signal due to a change based on the movement of an existing object is generated for each channel of the separation operation identification element, and the predetermined electric signal is the electric capacity value or the electric resistance value with time. It is preferable that the change is specific.

Secondly, it is provided with a data extraction means for causing a computer to extract from the electric signal data obtained from the element of the present invention based on the electric signal generated from the separation operation element for each channel of the separation operation identification element. Further, a sensing system (hereinafter referred to as the present invention) provided with an estimation means for estimating the type of object, the type of movement, or the magnitude of movement by a computer based on the characteristic data extracted by the data extraction means. Also called a system).

Thirdly, the training data includes (1) data that defines the type of object, the type of movement, or the magnitude of movement, and (2) a combination of electrical signal data, which is estimated by the system of the present invention. A trained model for estimating the type of object, the type of movement, or the magnitude of movement in the element of the present invention, which is derived by supervised learning in a computer (hereinafter, also referred to as the trained model of the present invention). )I will provide a.

Fourth, the electric signal data obtained from the element of the present invention is applied to the trained model of the present invention, and the type of object, the type of movement, or the magnitude of movement is estimated by a computer. , A guessing system (hereinafter, also referred to as an AI guessing system of the present invention) is provided.

Fifth, from the electrical signal data obtained in the device of the present invention, the type of object, the type of motion, or the feature associated with the magnitude of motion is extracted by a computer, and the estimated type of object is obtained. , The type of motion, or the combination of the data defining the magnitude of motion and the corresponding electrical signal data, from the electrical signal data separately obtained from the separation motion identification element, the type of object. Provided is a method for producing training data (hereinafter, also referred to as the AI data production method of the present invention), which is produced as training data for generating a trained model for estimating the type of movement or the magnitude of movement.

First, in relation to "adhesion of the conductive polymer to the base material" related to the present invention, the content of the base material itself and, in particular, PEDOT-, which is a typical embodiment of the conductive polymer on the base material. The adhesion between pTS and PEDOT-PSS will be described.

<Base material>
The material of the base material is not particularly limited as long as it can be used as a sensor element for identifying the separation operation, and as described above, paper, silk, polyester [PET (polyethylene terephthalate), etc.], polyamide (nylon), polyurethane. Examples thereof include a base material containing the above. Further, as for the shape of the base material, one of the features of the element of the present invention is that the movement of the object can be captured not by "points" but by "planes". Therefore, as will be described later, at least one unit of 25 cm. ^{It is preferable that two} or more surfaces are present as receiving surfaces for load stimuli, and as long as this condition is satisfied, the overall shape of the substrate is not limited at all. And as the most typical shape, the shape in which the base material is developed is a substantially two-dimensional shape, and a form in which a conductive polymer or charcoal is attached to at least one of the two-dimensional planes is exemplified. The substantially two-dimensional shape is, in other words, a "thinly spread shape", and includes a sheet shape and a film shape.

Here, a knitted fabric or a woven fabric, which is one of the forms of a base material that can be preferably selected in the present invention, will be described, and then, a “paper-containing material”, which is a material that can be most preferably selected in the present invention, will be described. Will be described.

(1) Knitted fabric or woven fabric The knitted fabric or woven fabric may be a single layer or a multi-layer. Even if it is a single layer, it is possible to provide overlapping threads in the thickness direction depending on the knitting method and the weaving method.

A knit is basically a fabric made of a single thread, and is a cloth made of a loop of threads (stitch) formed continuously by hooking threads one after another on a loop of threads. Unlike woven fabrics, warp and weft threads are not used.

The knitting machine used in the present invention is not particularly limited, and may be a machine knitting machine (flat knitting machine, warp knitting machine, circular knitting machine, tricot knitting machine, Rachel knitting machine, Milanese knitting machine, rubber knitting machine, interlock knitting machine, etc.). ), Needle knitting, hook needle knitting, Afghan knitting, or any other knitting method may be used. The knitting structure is not limited, for example, flat knitting, Kanoko knitting, rubber knitting, pearl knitting, tack knitting, transfer knitting, hoaze knitting, double knitting, double-sided knitting, swinging knitting, velvet knitting, floating knitting, pile knitting , Splicing thread, rope, intersia, wrap, non-run organization, chain, single tricot, single cord, single atlas, second, single satin, single velvet, plain tricot, double atlas Hen, Double Chord, Half Tricot, Reverse Half, Quinn's Chord, Satin Tricot, Double Tricot, Velvet, Shell, Knop, Twill, Warp Thread Insertion, Marquisette, Falling Board Organization, Net , Mirane's edition, warp weft thread insertion edition, weft thread insertion edition, etc.

A woven fabric is a fabric made by combining warp threads and weft threads. The structure of the woven fabric used in the present invention is not particularly limited. For example, it can be used as a three-pronged structure of plain weave, twill weave, and satin weave. Further, it may be a changed structure in which the Mihara structure is changed or combined, or it may be a single special structure or a crested structure. Further, it may be a plurality of woven fabrics such as warp double woven fabric, weft double woven fabric, warp and weft double woven fabric, pile woven fabric, towel woven fabric, and swelling woven fabric. As described above, the multiple woven fabrics can be provided with overlapping threads in the thickness direction.

It is preferable that the stitches or weaves used as the separation motion identification sensor element have uniform parts in order to obtain the same sensitivity to the movement of the target, but for example, in order to prevent the yarn from fraying, if necessary. It is also possible to provide closed knitting (ears) on the outer edge or the like in a knitted fabric or woven fabric. Also, the stitches or weaves can be adjusted in frequency or size in order to obtain appropriate sensitivity to the movement of the subject.

The size of the stitches is not particularly limited, but is usually about 100-5 stitches and 100-5 steps (1 mm ^2-4 cm ² in stitch size) with a width of 10 cm.

The size of the weave is not particularly limited, but is usually ^{about 100 to 15 stitches (1 mm 2 to} 2.25 cm ² in the size of the weave) with a width of 10 cm.

(2) Paper-containing base material The "paper-containing base material" described here includes the case where the yarn constituting the above-mentioned knitted fabric or woven fabric is a "paper-containing base material". It is not limited to this. A base material containing paper is suitable as a base material to which the present invention is applied. The "knit or woven fabric" is as described above.

The "paper-containing base material" may be "a base material made of paper" or "a mixture of paper and a material other than paper". "A mixture of paper and non-paper material" includes, for example, a case where fibers other than paper are present among the constituent fibers combined by twisted yarn in paper yarn, and the material of the wrapping yarn is In the paper covering yarn, the case where the material of the core yarn is other than paper is also included. Further, when the base material is a cloth, the cloth, that is, a knitted fabric, a woven fabric, or the like is also formed by "a group containing paper" only with the paper thread or when the paper thread and another kind of thread are combined to form a cloth. It is mentioned as "material". The content ratio of paper in the "paper-containing base material" is 10% by mass or more of paper with respect to the entire base material, and may be 100% by mass. In particular, when emphasizing the presence of paper, 20% by mass or more is preferable.

As described above, the "paper" applied to the present invention is produced by adhering plant fibers and other fibers as needed, and the production method thereof is known, and the plant fibers are obtained by beating or the like. It is basically manufactured by dispersing it in water, etc., scooping it up, and drying it. As plant fibers, seed hair fibers such as cotton; bast fibers such as flax, cannabis, jade, kozo, honey, ganpi; coniferous fibers such as tohi, fir, pine, and pine; poplar, hippo, beech, yanagi, eucalyptus, Broadleaf fiber such as nire; leaf fiber such as abaca (manila hemp); rice fiber such as rice straw and straw; other examples include esparto, reed, bamboo, bamboo grass, and kumazasa. Examples of other fibers include polyamide fibers such as nylon, polyester fibers such as PET, acrylic fibers, aramid fibers, polyurethane fibers, and carbon fibers, which are added as constituents of paper depending on the properties of the fibers. In addition, components usually contained in paper other than fibers, such as fillers such as talc, clay, calcium carbonate, and titanium dioxide, glue, and the like are also defined as a component of paper as a whole in the present invention. The above-mentioned "materials other than paper" whose mass is calculated in the "material containing paper" separately from the paper is "externally combined" with respect to the "paper configured as one". It is a "material" and is different from this "component contained inside the paper that is composed as one". As described above, the paper composition mainly composed of plant fibers is suitable for the adhesion of PEDOT-pTS and charcoal.

Among the above-mentioned "papers", Japanese paper has excellent hygroscopicity as a material to be used, and since the constituent fibers are long and the fibers are appropriately entangled with each other, it is excellent in fixing properties of PEDOT-pTS and charcoal. ing. "Washi" is a paper whose constituent fibers are substantially bast fibers. Washi was originally made from bast fiber (above) as a raw material and by a hand-plow method using a paste (vegetable mucus), but in the present invention, a paper made by a mechanical plow method is also used in the present invention. Included in "Washi". In addition, the "Washi" of the present invention also includes a mixture of bast fibers and components other than vegetable kneading, for example, chemical substances that replace the kneading, and other vegetable components, such as Kumazasa fiber. ..

The base material to which the conductive polymer or charcoal is attached may be a thin and flat form (sheet-like) paper, which is usually recognized, but may be a thread (paper thread). Further, it may be a cloth based on a paper thread to which a conductive polymer or charcoal is attached.

The paper thread can be produced by cutting the already produced sheet-shaped paper into slits and twisting the slitted paper. At the time of twisting, it is possible to cross-twist with fibers or threads other than paper, for example, silk, rayon, cotton thread, etc., and it is also possible to use other types of threads as the core material, but at least on the surface of the threads. It is necessary that the paper is exposed on all or part of it. The upper twisted yarn (described later) is suitable for a separation operation identification sensor element.

The thickness of the paper thread is not particularly limited and can be selected as needed in the range of about 1 μm-3 mm, but is usually about 10 μm-1 mm.

(3) Top-twisted yarn or false-twisted yarn Knitted fabric or false-twisted yarn in which the top-twisted yarn or false-twisted yarn to which "conductive polymer or charcoal" is attached is used as a yarn which constitutes all or part of the yarn. "Woven fabric" is suitable as a base material to which the present invention is applied. The "knit or woven fabric" is as described above.

"Upper twist" is a concept corresponding to "lower twist" (twist applied to a single yarn) in twisted yarn, and is a twist when two or more single yarns are twisted into one yarn. To say. The number of single yarns subject to top twisting of the present invention is not particularly limited. Two (double yarn), three (triple yarn), four (four yarn), and even more single yarns can be used. The presence or absence of lower twist in the single yarn is not particularly limited, and processed yarns such as false twisted yarns, pressed yarns, and silk-processed single yarns of Patent Document 5 can be used as single yarns, and "twisting-heat fixing". -Processed yarn by the untwisting method "and silk processed yarn of Patent Document 6 are also top-twisted yarns. The technique of Patent Document 5 relates to silk-processed single yarn, and "regulates and softens the raw silk yarn so that the residual ratio of sericin contained is maintained at 40% or more, and makes it warm water of less than 100 ° C. Latent crimped raw silk that develops a crimped structure by dipping, normal scouring, and dyeing, and maintains its focusing property in an air-dried state until it becomes a stretchy bulky yarn. " Therefore, it can be used as a single yarn constituting the upper twisted yarn in the present invention. The technique of Patent Document 6 is a method for producing silk top-twisted yarn. “Several raw silks are combined, about 90% of sericin is removed by scouring, then twisted, and then heated and expanded in hot water. It is a method of post-cooling, giving a form by high temperature and high pressure, air-drying, untwisting, and heating with saturated steam. ”It can be used as the upper twisted yarn in the present invention.

Further, as the upper twisted yarn, single-twisted yarn, multi-twisted yarn, piece-twisted yarn, wall-twisted yarn and the like can be selected, and is not particularly limited, but in general, single-twisted yarn, multi-twisted yarn or piece-twisted yarn is preferable. In the present invention, the single-twisted yarn is an upper-twisted yarn obtained by aligning two or more single yarns and twisting them right-handed or left-handed. The double-twisted yarn is an upper-twisted yarn obtained by aligning two or more single yarns that have been single-twisted and further twisting them in the opposite direction to the single-twisted yarn. The piece twisted yarn is an upper twisted yarn formed by pulling two or more single yarns that have been single-twisted and further twisting them in the opposite direction to the single-twisted yarn. In these three types of top-twisted yarns, the side surfaces of the single yarns constituting each other are brought close to each other by a pulling force, and the desired apparent cross-sectional area of the yarn can be increased.

The number of twists of the upper twist may be a sweet twist of 10 or more and less than 500 T / m, a medium twist of 500 or more and less than 1000 T / m, or a strong twist of 1000 or more and less than 2500 T / m. It may be an extremely strong twist of 2500 T / m or more. It is possible to combine these conditions relating to the upper twisted yarn into, for example, an upper twisted yarn having elasticity and elastic recovery (also referred to as stretchability) by using a traditional technique. For example, for a chirimen yarn made by twisting 2-3 single yarns under extremely strong twist, two to several Z-twisted and S-twisted yarns are aligned, and these are sweet-twisted or medium-twisted. You can make a stretchable yarn by twisting it with.

In the present invention, a filament yarn such as polyurethane is used as a core yarn, and a "covering" in which another single yarn is wound in a single layer or double or more is included as an upper twist, and a covering yarn in which this is performed is also referred to as an "upper twist yarn". include. For example, the silk-processed yarn of Patent Document 7 is "a silk-processed yarn formed in a hollow shape by spirally wound multiple layers of silk yarn, and the winding directions of the stacked layers are alternately formed in opposite directions. (Patent Document 7: Claim 1), "the outer winding of the lap winding (covering)" is one aspect of the upper twist. In the silk processed yarn of Patent Document 7, the hollow portion formed in the yarn is crushed by a tensile force, so that the apparent cross-sectional area of the yarn can be increased.

False-twisted yarns are also called false-twisted yarns, false-twisted yarns, and bulky-processed yarns. They are processed yarns that are twisted once, fixed, and finally untwisted. , A three-dimensional crimp strain is generated. Examples of the mode of false twisted silk include silk processed yarns of Patent Documents 8 and 9. The technique of Patent Document 8 disclosed as one of the methods for producing false-twisted yarn is that "raw silk is impregnated with a modifier that insolubilizes sericin in silk fibers, then twisted, and then the twist is fixed. After performing the heat treatment at a temperature of 120-140 ° C. for 10-30 minutes, twisting is performed in the opposite direction to the twisting, and then the silk is immersed in 0.6-3.0 g / l of proteolytic enzyme for scouring. , A method for producing a silk thread having a crimping property, which is characterized by removing sericin contained in the silk thread. ”, And can be used as a method for producing a false twisted yarn applicable to the present invention. Further, the technique of Patent Document 9 is also a method for producing false twisted yarn, which is "mainly kneading raw silk, removing 80-90% of sericin, subjecting resin processing, weakly twisting the yarn in the S direction or Z direction, and then further. After twisting in the same direction, steaming is performed, and this is untwisted in the opposite direction, further twisted from the untwisted state, and the yarn is made into a heddle to give irregular stretchability, and then saturated steam. A method in which the heddle-shaped yarn is untwisted in the direction opposite to the twisting direction in the pre-addition step, re-twisted, and steamed with saturated steam after being set by heating in. ”, And is applied to the present invention. It can be used as a possible method for producing false twisted yarn.

False twisted yarns of chemical fibers are disclosed, for example, in Non-Patent Document 1 as a general technique.

As described above, the false twisted yarn may be a single yarn, or may be an upper twisted yarn in which the single yarn is all or a part of the constituent single yarn. Further, a wall twisted yarn-like form using a core yarn and a covering yarn can also be used as the upper twisted yarn in the present invention.

The material exposed on the surface of the "thread" needs to be capable of adhering conductive polymers and charcoal. “Exposed to the surface” is, for example, a yarn that constitutes the inside of the cross section of the yarn and is not exposed to the surface of the yarn, typically excluding the core yarn. Examples of the material include silk fibers, polyamide (nylon) fibers, polyester fibers, and paper fibers. These fibers may form the yarn surface alone, or a plurality of types of fibers may be combined to form the yarn surface.

Further, the above-mentioned "used as a yarn constituting a part of a knitted fabric or a woven fabric" means a yarn to which a conductive polymer or charcoal is not attached, or a conductive polymer other than a top-twisted yarn or a false-twisted yarn. This is the case when the yarn to which the charcoal is attached is used in another part of the knitted fabric or the woven fabric.

<Adhesion of PEDOT-pTS to the substrate>
PEDOT-pTS (poly (3,4-ethylene-dioxythiophene) -p-toluenesulfonate) is a conductive polymer formed by polymerizing pTS (p-toluenesulfonate) and EDT (3,4-ethylenedioxythiophene). For example, as a first attachment method, contact of an organic solvent solution containing an oxidizing component and pTS and a mixed solution of PEDOT with a base material containing paper (mainly sheet-shaped paper or paper thread). PEDOT-pTS can be attached by dipping or printing, and then applying a polymerization promoting treatment to the contact portion (the method disclosed in Patent Document 1 or a modified method thereof). As a second attachment method, (a) an attachment step of attaching a pTS solution containing an oxidizing component and pTS to a base material (mainly sheet-shaped paper or paper thread) containing paper, and (b) an attachment step. PEDOT-pTS can be adhered by further adhering PEDOT to the base material to which the oxidizing component and pTS are adhered in (a) and advancing the polymerization reaction for producing PEDOT-pTS in these. (Second attachment method: the method disclosed in Patent Document 2). Both the first attachment method and the second attachment method can be used for a base material containing paper, polyester fibers such as silk and PET (polyethylene terephthalate) fibers, polyamide (nylon) fibers, polyurethane fibers and the like. .. It can also be used for those coated with sericin, which is a constituent of silk (Japanese Patent Laid-Open No. 2003-171874).

(1) First attachment method of PEDOT-pTS In the first attachment method, by mixing the pTS solution and EDOT, the polymerization reaction of PEDOT proceeds in the pTS-EDOT mixed solution, and PEDOT which is a high polymer polymer. -PTS is formed. According to the following formula, the polymerization rate of this polymerization reaction increases as the temperature rises, and if it is stored at a low temperature at the refrigerator level, the polymerization rate can be lowered, which can contribute to securing the time for the adhesion step. ^{Fe 3+} is exemplified as an oxidizing component, but the present invention is not limited to this.

In the first attachment method, “after” means that the polymerization promotion treatment is performed at the “simultaneous or later” timing related to the timing at which the pTS-EDOT mixed solution comes into contact with the substrate. Specifically, both timings may be substantially the same, and the polymerization promotion treatment may be performed by providing a time lag from the timing when the pTS-EDOT mixed solution comes into contact with the substrate. Further, for example, an embodiment in which the pTS-EDOT mixture is brought into contact with the substrate while the polymerization promoting treatment is continuously performed on the substrate and the time lag is substantially not provided is also described in the first adhesion method. Then included. The mixing ratio of the pTS solution and the EDOT in the first attachment method is pTS solution: EDOT = 10: 1-100: 1, preferably 20: 1-40: 1 in terms of volume ratio.

pTS is known as a paratoluenesulfonic acid compound (salt or ester with paratoluenesulfonic acid (tosilic acid)) and is also commercially available. The organic solvent that can serve as the solvent for the pTS solution is one that can dissolve the pTS and the oxidizing component and the like, and preferably has good compatibility with the aqueous solvent. Specific examples thereof include monohydric lower alcohols having 1-6 carbon atoms, specific examples thereof include methanol, ethanol, propyl alcohol, isopropyl alcohol, butanol, pentanol, and hexanol. The skeleton of the carbon atom constituting these monohydric lower alcohols may be linear, branched or cyclic, and not only one type but also two or more types may be used in combination. Alternatively, it may be appropriately diluted with water before use. Among these, monohydric lower alcohols having 1-4 carbon atoms, specifically methanol, ethanol, propyl alcohols, isopropyl alcohols, or butanol, are suitable as organic solvents for pTS solutions.

The oxidizing component contained in the pTS solution is not particularly limited as long as it can activate the polymerization reaction to PEDOT-pTS in the pTS-EDOT mixed solution, and transition elements, halogens and the like are exemplified.

The transition elements include first transition elements such as iron, titanium, chromium, manganese, cobalt, nickel and zinc; second transition elements such as molybdenum, silver, zirconium and cadmium; and third transition elements such as cerium, platinum and gold. Is exemplified. These transition elements may be used as a simple substance of a metal or as a metal salt. Among these, it is preferable to use a first transition element such as iron or zinc.

The content of the oxidizing component in the pTS solution varies depending on the type of the oxidizing component used, and is not particularly limited as long as it can activate the above-mentioned polymerization reaction. For example, in the case of ferric ion (Fe ³⁺ ), the ferric chloride is preferably 1-10% by mass, particularly preferably 3-7% by mass, based on the solution. .. If this content is too large, the polymerization reaction proceeds quickly, but it becomes difficult to remove iron in a subsequent step, and if it is too small, the polymerization reaction proceeds slowly.

The content of pTS acting as a dopant in the pTS solution is preferably 0.1-10% by mass, more preferably 0.15-7% by mass, and particularly preferably 1-6% by mass with respect to the solution. %, Most preferably 2-5% by mass.

EDOT is known as 3,4-ethylenedioxythiophene and is also commercially available. EDOT is liquid at room temperature and water-soluble, and can be appropriately diluted with an aqueous solvent such as water before use.

Unless the effect of the present invention is quantitatively or qualitatively impaired, such as the adhesion of the pTS-EDOT mixture to the paper containing the pTS solution and the conductive performance of the finished material, which are not substantially impaired. , Other ingredients can be blended as needed.

Examples of the other component include glycerol, polyethylene glycol-polyprene glycol polymer, ethylene glycol, sorbitol, sphingosine, and phosphatidylcholine, preferably glycerol, polyethylene glycol-polyprene glycol polymer, and sorbitol. 1 type or 2 or more types are mentioned.

Other cationic surfactants such as quaternary alkylammonium salts and alkylpyridinium halides; anionic surfactants such as alkylsulfates, alkylbenzenesulfonates, alkylsulfosuccinates and fatty acid salts; polyoxyethylene, poly Nonionic surfactants such as oxyethylene alkyl ethers; natural polysaccharides such as chitosan, chitin, glucose and aminoglycans; sugar alcohols, dimethylsulfoxide and the like.

At room temperature, in the pTS-EDOT mixed solution, gelation of the solution by the above polymerization reaction proceeds. Therefore, it is preferable to perform the step of removing the excess gelled polymer adhering to the substrate after the contact with the mixture. For example, the base material separated from the mixed solution can be removed by physical means such as vibration, ventilation, and contact with a roller. When the step of removing the excess gelled polymer is not performed after the polymerization reaction is performed, the base material and the mixed solution are contacted in a short time after the preparation of the mixed solution, and the mixed solution is prepared. There is a restriction that the contact should be made in a short time later. Specifically, the adhesion by the above contact should be completed within 5 minutes, more preferably 1 minute after the preparation of the pTS-EDOT mixture. When the above-mentioned step of removing the excess gelled polymer is carried out, the time constraint of the adhesion step due to this contact is practically not recognized even at room temperature, and it is suitable after the preparation of the pTS-EDOT mixed solution. It is possible to allow sufficient adhesion of PEDOT-pTS to the substrate by taking an adhesion step time of 10 minutes or more, more preferably 15 minutes or more. Even if the adhesion step takes 40 minutes or more, the adhesion promoting effect corresponding to the long process is not recognized due to the progress of gelation.

Adhesion by contact in the first adhesion method is preferably performed by dropping, spraying, dipping, transferring, or coating.

Examples of the polymerization promoting treatment in the first adhesion method include heat treatment. The heat treatment includes (α) contact with a radiator at 50-90 ° C. at the polymerization promoting portion, (β) contact with hot air set at 50-90 ° C. at the polymerization promoting portion, and (γ). Contact with a heating atmosphere at 50-90 ° C. in a constant temperature bath or the like can be mentioned.

The contact of the radiator at 50-90 ° C. in (α) is preferably a heating time of 3 to 10 minutes, particularly preferably 3 to 6 minutes, and most preferably 4 to 6 minutes.

When the polymerization promoting portion of (β) is in contact with hot air set to 50-90 ° C., 3-10 minutes is preferable, and 4-6 minutes is particularly preferable.

In the case of the heating atmosphere set to 50-90 ° C. of (γ), 3-10 minutes is preferable, and 4-6 minutes is particularly preferable.

After the above heat treatment, the base material is taken out from the solution, washed with water, more preferably distilled water or deionized water, and then dried in a constant temperature bath, hot air or warm air, sun or the like.

(2) Second Adhesion Method of PEDOT-pTS In the second adhesion method, first, an oxidizing component and pTS as a dopant are dissolved in an organic solvent solution, and paper is placed in the organic solvent solution (pTS solution). Immerse the substrate containing.

The organic solvent that can be the solvent for pTS and the oxidizing component contained therein are the same as the above-mentioned "organic solvent and oxidizing component of the pTS solution of the first adhesion method". Further, the "other components" that can be contained in the pTS solution are also the same as the above-mentioned "other components in the pTS solution of the first adhesion method".

The content of the oxidizing component in the pTS solution varies depending on the type of the oxidizing component used, and is not particularly limited as long as it can activate the above-mentioned polymerization reaction. For example, in the case of ferric ion (Fe ³⁺ ), the ferric chloride is preferably 1-10% by mass, more preferably 3-7% by mass, based on the pTS solution. If this content is too large, the polymerization reaction proceeds quickly, but it becomes difficult to remove iron in a subsequent step, and if it is too small, the polymerization reaction proceeds slowly.

The content of pTS acting as a dopant in the pTS solution is preferably 0.1-10% by mass, more preferably 0.15-7% by mass, and particularly preferably 1-6% by mass with respect to the solution. %, Most preferably 2-5% by mass.

In the second attachment method, the monomer EDOT is then added to the PTS solution in which the above-mentioned substrate is immersed, and then the temperature is 50-100 ° C., preferably 10 minutes-60 minutes, more preferably 50-. Heating is performed at 80 ° C. for 10-40 minutes, very preferably 60-80 ° C. for 10-30 minutes. After heating, the base material is taken out from the solution, washed with water, more preferably distilled water or deionized water, and then dried in a constant temperature bath, hot air or warm air, sun or the like.

The usage amount ratio of the pTS solution and the EDOT in this step is pTS solution: EDOT = 10: 1-100: 1, preferably 20: 1-40: 1 in terms of volume ratio.

<Adhesion of PEDOT-PSS to the base material>
PEDOT-PSS (Poly (3,4-ethylenedioxythiophene) -polystyrenesulfonate) is obtained by immersing a base material containing paper in a conductive solution containing PEDOT-PSS and pulling the base material vertically from the conductive solution. However, by running between the electrodes and energizing, PEDOT-PSS adhering to the substrate can be adhered by a so-called electrolytic polymerization method of electrochemically polymerizing and fixing (Patent Document 3). Further, a resin composition obtained by mixing PEDOT-PSS and a binder resin can be attached to a yarn to which stretchability has been imparted, and can be adhered by solidifying or polymerizing by drying, heating, heating or the like (Patent Document 4). ). Alternatively, the substrate is made conductive by adsorbing a water-soluble / solvent dispersion liquid in which PEDOT-PSS finely divided (average particle size is about 10 microns) is dispersed in a solution / solvent. Is possible (method of Example 5). The method for attaching PEDOT-PSS is a material other than the paper-containing base material used as the material of the separation motion identification sensor element of the present invention, that is, a polyester fiber such as silk or PET (polyethylene terephthalate) fiber, which will be described later. It can also be used for polyamide (nylon) fibers, polyurethane fibers and the like. It can also be used for those coated with sericin, which is a constituent of silk (Japanese Patent Laid-Open No. 2003-171874).

<Other conductive polymers and charcoal>
Examples of the conductive polymer other than PEDOT-pTS and PEDOT-PSS include PEDOT-PVS, PEDOT / heparin, polypyrrole and the like. Examples of charcoal include particles such as charcoal, bamboo charcoal, flower charcoal, graphite (graphite), and artificial graphite. These charcoal particles can be used by being dissolved or dispersed in an aqueous solvent such as water and applied on a substrate. Further, graphene can be used by adhering it to a base material.

INDUSTRIAL APPLICABILITY The present invention provides a separation motion identification sensor element capable of grasping the type of a target, the type of movement, or the magnitude of movement of a material to which a conductive polymer or carbonaceous material is attached. A sensing system is provided. Further, according to the present invention, the training data obtained by performing machine learning using the data obtained by the above-mentioned sensing system of the present invention, the production method thereof, the type of the object to which the training data is applied, the type of movement, or A motion magnitude estimation system is provided.

It is the schematic which showed the system of this invention. It is a schematic diagram of the system of Test Example 1.

An example of an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic view showing the system of the present invention. In FIG. 1, members 11 and 12 having a conductive polymer or charcoal attached to a wide and thin (sheet-like) base material are fixed to the facing wall surfaces 1 and 2, and the members 11 and 12 are respectively. It is electrically connected to the applied power supply (not shown). Further, the members 11 and 12 are subjected to a signal conversion unit 13 that converts an electric signal indicating a change in voltage with time into an electric signal indicating a change in capacitance with time, respectively. Are electrically connected so that they are transmitted independently. Further, the signal conversion unit 13 is electrically connected to the microcomputer 14, and the two LED light sources 15 and 16 are connected to the microcomputer 14 so that the two LED light sources 15 and 16 are turned on separately based on the electric signals derived from the member 11 and the member 12. Is electrically connected to.

The capacitance value between the target and both members 11 or 12 changes according to the distance between the target (human or the like) and both members 11 and 12 that have invaded between the facing wall surfaces 11 and 12, and this The change becomes an electromotive force in both members 11 and 12, and an electric signal (current or voltage) having a strength corresponding to the distance is generated and flows to the signal conversion unit 13, which is again electrostatically charged by the signal conversion unit 13. The signal strength is corrected according to the change in capacitance, and switching is performed on the microcomputer 14 based on this, and the change in capacitance value according to the distance between both members 11 and 12 and the target (the one with the shorter distance). The LED light sources 14 and 15 are turned on and changed in response to an electric signal having a strength corresponding to (strong). The closer the distance between the members 11 and 12 to the target, the stronger the light, and when the target deviates from the range in which the electric field is formed, the light turns off. The range in which the electric field is generated can be adjusted by the area, thickness, electric resistance, and capacitance of the members 11 and 12.

The basic items of the embodiment shown in FIG. 1 are shown as manufacturing examples and test examples.

[Manufacturing example]
As a base material, a silk thread (temperature 22 ° C., humidity 50) produced by winding a covering thread on the outside of two sets of crepe threads, which is a set of two 21 denier silk threads twisted at 2800 T / m on each side. A fabric (60 cm x 60 cm) obtained by flat knitting (10 cm width, 100 stitches, 100 steps, thread thickness of about 0.5 mm) was obtained from Tohoku Plying Co., Ltd. (material cloth). 1).

On the other hand, using Japanese paper yarn with a thickness of 240 denier (22nd count) (double yarn with sweet twist on the top: temperature 22 ° C, humidity 50%, expansion and contraction rate 16%), Kanoko knitting (50 stitches with a width of 10 cm, 50 steps) ), A commercially available cloth (30 cm × 30 cm) having elasticity was obtained (material cloth 2).

For the above material cloths 1 and 2, the pTS solution is a butanol solution containing iron (III) ions of the transition metal and pTS (CLEVIOS CB 40 V2 manufactured by Heraeus: iron (III) p-toluenesulfonate). 4% by mass: "CLEVIOS" is a registered trademark). As the EDOT, an aqueous solution of EDOT (CLEVIOS MV2 manufactured by Heraeus, about 98.5% by mass of EDOT: "CLEVIOS" is a registered trademark) was used.

A mixture of EDOT in the above pTS solution was prepared, cooled to about 4 ° C., and the base material was immersed in the mixture at room temperature for 20 minutes. After that, the immersed base material is taken out from the mixed solution, two points on each side are sandwiched between clips, suspended, exposed to the wind of an electric fan (strong wind) for 5 to 10 minutes, and the base material is dried while being vibrated by the wind. Then, it was further rubbed with a roller to remove excess gelled polymer adhering to the substrate by these steps.

Next, the base material from which the gelled polymer had been removed was placed in a constant temperature bath at 70 ° C. and heated for 5 minutes to polymerize to PEDOT-pTS. Next, the polymerized base material was repeatedly washed with water twice, and then dried at 90 ° C. to perform two types of "knitted fabrics to which PEDOT-pTS was attached" (in this example, the adhered base material 1 was attached to the material cloth 1. , Also referred to as an adherent base material 2 with respect to the material cloth 2).

[Test Example] Examination as a Separation Operation Identification Sensor Element The adhesive base material 2 (30 cm x 30 cm) to which the above PEDOT-pTS is attached, which is electrically connected to a 3.3 V DC power supply, is folded in four and this is An LED (6000 millicandela (mcd) in the case of 20 mA) was electrically connected to the terminal via a terminal and a conductive wire. In such a state, when the finger was brought close to the adherent base material 2, the LED was turned on at a distance of about 15 cm, and the light became stronger as it approached, and the capacitance of the system also increased. This result shows that the adherent base material can be used as a separation motion identification sensor element. A schematic diagram of this test system is shown in FIG. In this example, as a preferred embodiment, a Kanoko knitted cloth made of Japanese paper yarn is used as a base material, but another material, for example, an adhesive base material 1 using silk can also be used. When the adhesive base material 1 is used in place of the adhesive base material 2, the brightness gradually increases from the time when the finger is brought closest to the adherent base material 1 folded in four (about 5 cm), and when the finger is touched. The brightness of the LED was maximized.

Claims (14)

Separation operation in which all or part of the base material contains a portion to which a conductive polymer or carbonaceous material is attached, and an electric signal corresponding to the movement of the object in a non-contact state with the above portion is generated from the above portion. Identification element. Two or more channel units of the separation operation identification element are provided so that portions to which conductive polymers or charcoal are attached face each other across a space, and generate an electric signal in response to the movement of an object in the space. The separation operation identification element according to claim 1, which transmits. The conductive polymer in the separation motion identification element is PEDOT-pTS (poly (3,4-ethylene-dioxythiophene) -p-toluenesulfonate) or PEDOT-PSS (Poly (3,4-ethylenedioxythiophene) -polystyrenesulfonate). The separation operation identification element according to claim 1 or 2. The separation operation identification element according to any one of claims 1-3, wherein all or part of the base material is a member of a material containing paper. The separation operation identification element according to claim 4, wherein the material containing the paper is Japanese paper. The separation operation identification element according to any one of claims 1-5, wherein all or part of the base material is a knitted fabric, a woven fabric, or a non-woven fabric. The separation operation identification element according to claim 6, wherein the yarn constituting all or a part of the knitted fabric or the woven fabric is an upper twisted yarn or a false twisted yarn to which a conductive polymer or charcoal is attached. The separation according to any one of claims 1-7, wherein the shape in which the base material is developed is substantially a two-dimensional shape, and the conductive polymer or charcoal is attached to at least one of the two-dimensional planes. Motion identification element. The separation operation identification element includes a voltage application unit and a signal conversion unit that are electrically connected to a material to which a conductive polymer or charcoal is attached, and the signal conversion unit is applied in the voltage application unit. The separation operation identification element according to any one of claims 1-8, which generates a predetermined electrical signal due to a change in voltage based on the movement of an object existing across a space for each channel of the separation operation identification element. .. The separation operation identification element according to any one of claims 1-9, wherein the electric signal is a change over time in an electric capacity value or an electric resistance value. From the electrical signal data obtained from the separation motion identification element according to any one of claims 1-10, characteristic data associated with the movement of the target can be obtained from the separation motion identification element. It is provided with a data extraction means to be extracted by a computer based on an electric signal generated for each channel, and further, based on the characteristic data extracted by the data extraction means, the type of object, the type of movement, or the type of movement. A sensing system equipped with an estimation means that allows a computer to estimate the size. The training data includes (1) data that defines the type of object, the type of movement, or the magnitude of movement, and (2) a combination of electrical signal data, which is estimated by the sensing system according to claim 11. Learning to estimate the type of object, the type of movement, or the magnitude of movement in the separation motion identification element according to any one of claims 1-10, which is derived by supervised learning in a computer. Finished model. The data of the electric signal obtained from the separation motion identification element according to any one of claims 1 to 10 is applied to the trained model according to claim 12, and the type of object, the type of motion, and the like. Alternatively, a guessing system in which the magnitude of motion is estimated by a computer. From the data of the electric signal obtained in the separation motion identification element according to any one of claims 1-10, the type of object, the type of motion, or the feature associated with the magnitude of motion is extracted by a computer. A combination of data defining the estimated type of object, type of movement, or magnitude of movement and the corresponding electrical signal data was obtained separately from the separation motion identification element. A method of producing training data, which is produced as training data for generating a trained model for estimating a target type, a movement type, or a movement magnitude from electrical signal data.

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