CN101393058A - Flexible resistance type pressure sensor with machine-weaved structure and use thereof - Google Patents
Flexible resistance type pressure sensor with machine-weaved structure and use thereof Download PDFInfo
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- CN101393058A CN101393058A CNA2008102021473A CN200810202147A CN101393058A CN 101393058 A CN101393058 A CN 101393058A CN A2008102021473 A CNA2008102021473 A CN A2008102021473A CN 200810202147 A CN200810202147 A CN 200810202147A CN 101393058 A CN101393058 A CN 101393058A
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- pressure transducer
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- OYJDUHIBUNEVLS-UHFFFAOYSA-N NCC(CCC1)CC1C(C1)C11CCCC1 Chemical compound NCC(CCC1)CC1C(C1)C11CCCC1 OYJDUHIBUNEVLS-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a flexible resistance type pressure sensor with a woven structure, which consists of conductive fibers. The pressure sensor is characterized in that the conductive fibers are mutually interwoven into a woven fabric, all warp yarns of the woven fabric are connected with each other, all weft yarns of the woven fabric are connected with each other, and an integral resistor between all the warp yarns and all the weft yarns changes with the pressure on the woven fabric. The technical proposal of the flexible resistance type pressure sensor provides application of the flexible resistance type pressure sensor with the woven structure, which is characterized in that the flexible resistance type pressure sensor with the woven structure is applied to sleeping posture detection costume. The pressure sensor has the characteristics of flexibility, foldability and launderability, and is suitable for the detection of wearable personal physiological information and state.
Description
Technical field
The present invention relates to a kind of flexible resistor formula pressure transducer and application on sleeping position detection clothes thereof, belong to resistive pressure sensor and applied technical field thereof with machine-knitted structure.
Background technology
In recent years, the flexible sensor with fabric construction has caused domestic and international researchist's concern gradually.Compare with traditional sensor, the novel sensor of this class has flexible, collapsible even rinsable characteristics, therefore is highly suitable for Wearable personal physiological information and status detection.
Fabric construction is meant the knitted structure or the machine-knitted structure of fabric.The flexible sensor of fabric construction is meant that the sensitive element of sensor is a fabric with knitted structure or machine-knitted structure, i.e. knitted fabric or woven fabric.Usually, produce corresponding the variation, so just can become such Fabric Design the sensor of corresponding physical quantity if the variation of physical quantitys such as the shape of fabric, length, temperature or pressure can cause the electrical quantities such as resistance, inductance or electric capacity of fabric.Especially, if act on corresponding variation of resistance generation that the pressure on the fabric changes and can cause fabric, so just can become resistive pressure sensor to such Fabric Design.
At present, prior art mainly is the capacitance pressure transducer, with machine-knitted structure about the pliable pressure sensor of fabric construction.For example, (M.Sergio such as Italian Sergio, N.Manaresi, F.Campi, R.Canegallo, M.Tartagni, and R.Guerrieri, A dynamically reconfigurablemonolithic CMOS pressure sensor for smart fabric, IEEE Journal ofSolid-state circuits, 38 (6) (2003) 966-975.) disclose a kind of by the woven capacitance pressure transducer, of conductive fiber.When pressure acts on this fabric, the electric capacity between the fiber that interweaves mutually will increase.(Y.Hasegawa such as Japanese Hasegawa, M.Shi kida, D.Ogura, K.Sato, Noveltype of fabric tactile sensor made from artificial hollow fiber, Proceedings of the IEEE Twentieth Annual International Conference onMicro Electro Mechanical Systems, Kobe, Japan, Jan.21-25,2007,478-481.) disclose a kind ofly by the woven capacitance pressure transducer, of elastic hollow fiber, the big I of contact pressure between two hollow fibers that wherein interweave mutually obtains by the electric capacity of measuring between these two hollow fibers.
Yet prior art and unexposed a kind of flexible resistor formula pressure transducer with machine-knitted structure also unexposedly comprise that this flexible resistor formula pressure transducer with machine-knitted structure detects application on the clothes in sleeping position.For example, the disclosed a kind of apparatus and method that health rotates of measuring of the U.S. Pat 6356203B1 of American Halleck application are to adopt the sensor of two tilt switchs as detection angles, judge the rotation on the both direction of the health left and right sides.Chinese patent 200520017443.8 disclosed a kind of sleeping posture monitoring devices of Chinese Song Weijin application, be with a filling that has an electrode cavity of conducting liquid as sensor, and come corresponding different sleeping postures according to the diverse location of conducting liquid in cavity.
Summary of the invention
The purpose of this invention is to provide a kind of flexible resistor formula pressure transducer with machine-knitted structure with and detect application on the clothes in sleeping position.
In order to achieve the above object, product technology scheme of the present invention has provided a kind of flexible resistor formula pressure transducer with machine-knitted structure, form by conductive fiber, it is characterized in that, described conductive fiber is interwoven mutually and is woven fabric, be connected to each other between whole warp thread of described woven fabric, be connected to each other between whole weft yarns of described woven fabric, the overall electrical resistance between whole described warp thread and the whole described weft yarn changes with the pressure on the described woven fabric.Can derive the contact resistance between described warp thread and the described weft yarn and the relation of described pressure according to the Holm Electric contact theory, and owing to be connected to each other between whole warp thread of described woven fabric, be connected to each other between whole weft yarns of described woven fabric, therefore the overall electrical resistance that can derive between whole warp thread and the whole weft yarn is all warp thread and the function of place, weft yarn intertwined point contact resistance, and therefore the overall electrical resistance between whole described warp thread and the whole described weft yarn changes with the pressure on the described woven fabric.
Purposes technical scheme of the present invention has provided a kind of application with flexible resistor formula pressure transducer of machine-knitted structure, it is characterized in that, described flexible resistor formula pressure sensor application with machine-knitted structure is detected on the clothes in sleeping position.
A kind of sensor mechanism with flexible resistor formula pressure transducer of machine-knitted structure provided by the invention is: the contact resistance at every warp thread and place, weft yarn intertwined point is the function of contact area, and contact area is the function of contact pressure; Simultaneously, the warp thread of whole woven fabric and the overall electrical resistance between the weft yarn can be seen the resistor network of being made up of contact resistance between some single yarns and yarn (fiber) intrinsic resistance as; When the pressure on acting on whole woven fabric changes, the all-in resistance of woven fabric will change along with the variation of pressure, and its expression formula can be obtained by theoretical derivation or experimental fit.
Owing to adopted above-mentioned technical scheme, the present invention compared with prior art, have following advantage and good effect: the present invention is a kind of flexible sensor with machine-knitted structure, have flexible, collapsible even rinsable characteristics, therefore be highly suitable for Wearable personal physiological information and status detection; The sleeping position that is provided with this flexible sensor detects clothes, can detect the suffered pressure signal in wearer's body front portion under the sleep state, rear portion, left side and position, right side in real time and judge its sleeping posture, be specially adapted to prevent SIDS (SIDS) or reduce its incidence, the real-time sleeping position that also can be used for patient detects.
Description of drawings
Fig. 1 is parallel flexible resistor formula pressure sensor structure figure of the present invention;
Fig. 2 is tandem flexible resistor formula pressure sensor structure figure of the present invention;
Fig. 3 is a parallel flexible resistor formula pressure transducer equivalent circuit diagram of the present invention;
Fig. 4 is a tandem flexible resistor formula pressure transducer equivalent circuit diagram of the present invention;
Fig. 5 is flexible resistor formula pressure transducer provided by the invention detects the application on the clothes in sleeping position a front schematic view;
Fig. 6 is flexible resistor formula pressure transducer provided by the invention detects the application on the clothes in sleeping position a reverse side synoptic diagram;
Fig. 7 is that sleeping position of the present invention detects the strap configurations synoptic diagram;
Fig. 8 is a sleeping position detection alarm schematic diagram of the present invention;
Fig. 9 is flexible resistor formula pressure sensor signal change-over circuit figure of the present invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, but the change of the equivalent form of value or modification fall within the described claims of the application institute restricted portion equally.
Be parallel flexible resistor formula pressure sensor structure figure of the present invention as described in Figure 1, form by conductive fiber, this conductive fiber is interwoven mutually to having the woven fabric of plain weave construction, in parallel mutually between whole warp thread 12 of described woven fabric, in parallel mutually between whole weft yarns 11 of described woven fabric, thereby all the overall electrical resistance between warp thread 12 and the whole weft yarn 11 is the function of the contact resistance between all single warp thread 12 and the weft yarn 11, and contact resistance changes with the pressure on the woven fabric.
It is 10 that warp thread 12 is all selected hardness for use with weft yarn 11
7Pa, diameter are the conductive fiber of 0.5mm, and the radical of warp thread 12 and weft yarn 11 all is 100 (among Fig. 1 and Fig. 3 be example with 4), and the resistivity of warp thread 12 is 0.1 Ω m, and the resistivity of weft yarn 11 is 1000 Ω m.
Be illustrated in figure 3 as parallel flexible resistor formula pressure transducer equivalent circuit diagram of the present invention, wherein, resistance R
1And resistance R
CBe meant the contact resistance at resistance of weft yarn own and weft yarn and warp thread intertwined point place respectively.
As Fig. 5 and front and the reverse side synoptic diagram that is respectively the application of flexible resistor formula pressure transducer provided by the invention on sleeping position detection clothes shown in Figure 6, mainly comprise a clothes matrix 9 and 4 flexible resistor formula pressure transducers 1 that are arranged on this clothes matrix 9 with machine-knitted structure.
Wherein, these flexible resistor formula pressure transducers 1 with machine-knitted structure are separately positioned on shirtfront, back, left side and the position, right side corresponding to clothes matrix 1.
Be illustrated in figure 8 as sleeping position detection alarm schematic diagram of the present invention, described flexible resistor formula pressure transducer 1 connects signaling conversion circuit 21, microcontroller 22, warning circuit 23 and the antenna 24 of series connection mutually.
Wherein, as shown in Figure 1, respectively draw a lead on the warp thread 12 of described flexible resistor formula pressure transducer 1 and the weft yarn 11 and be connected signaling conversion circuit 21.
Signaling conversion circuit 21 can adopt circuit as shown in Figure 9 to realize that Fig. 9 is U wherein
sBe a voltage source, U
oBe output voltage, R
1Be variable resistor (being described flexible resistor formula pressure transducer 1), R
2It is a fixed resistance.
When the wearer of sleeping position detection clothes was in prone position, left lateral position or right arm reclining sleeping posture, it (was R that the resistance of the flexible resistor formula pressure transducer 1 of corresponding position changes under pressure
1Change), signaling conversion circuit 21 is converted to voltage signal with this resistance signal, microcontroller 22 is converted to sleeping position information with this voltage signal, and by warning circuit 23 and antenna 24 with sleeping position information notification relative.
Embodiment 2
Fig. 2 is tandem flexible resistor formula pressure sensor structure figure of the present invention.As shown in the drawing, the difference of present embodiment and embodiment 1 is, parallel connection mutually between whole warp thread 12 of described woven fabric, series connection mutually between whole weft yarns 11 of described woven fabric.
It is 10 that warp thread 12 is all selected hardness for use with weft yarn 11
7Pa, diameter are the conductive fiber of 1mm, and the radical of warp thread 12 and weft yarn 11 all is 50 (among Fig. 2 and Fig. 4 be example with 4), and the resistivity of warp thread 12 is 0.01 Ω m, and the resistivity of weft yarn 11 is 10 Ω m.
Fig. 4 is a tandem flexible resistor formula pressure transducer equivalent circuit diagram of the present invention, and wherein, resistance R I and resistance R C are meant the contact resistance at the resistance of weft yarn own and weft yarn and place, warp thread intertwined point respectively.
Other parts of present embodiment are identical with embodiment 1.
Embodiment 3
Fig. 7 is that sleeping position of the present invention detects the strap configurations synoptic diagram, and as shown in the drawing, the difference of present embodiment and embodiment 1 is that clothes matrix 9 is a bandage, and other are identical with embodiment 1.
Claims (10)
1. flexible resistor formula pressure transducer with machine-knitted structure, form by conductive fiber, it is characterized in that, described conductive fiber is interwoven mutually and is woven fabric, be connected to each other between whole warp thread (12) of described woven fabric, be connected to each other between whole weft yarns (11) of described woven fabric, the overall electrical resistance between whole described warp thread (12) and the whole described weft yarn (11) changes with the pressure on this woven fabric.
2. a kind of flexible resistor formula pressure transducer with machine-knitted structure as claimed in claim 1 is characterized in that described woven fabric has plain weave construction.
3. a kind of flexible resistor formula pressure transducer with machine-knitted structure as claimed in claim 1 is characterized in that, describedly is connected to parallel connection or series connection.
4. a kind of flexible resistor formula pressure transducer as claimed in claim 1 with machine-knitted structure, it is characterized in that, described warp thread (12) is the conductive fiber of resistivity between 0.01～0.1 Ω m, and described weft yarn (11) is the conductive fiber of resistivity between 10～10000 Ω m.
5. a kind of flexible resistor formula pressure transducer with machine-knitted structure as claimed in claim 1 is characterized in that described whole warp thread (12) or described whole weft yarn (11) are 20～200.
6. a kind of flexible resistor formula pressure transducer with machine-knitted structure as claimed in claim 1 is characterized in that described warp thread (12) and described weft yarn (11) are that hardness is between 10
6～10
8The conductive fiber of Pa.
7. the application with flexible resistor formula pressure transducer of machine-knitted structure as claimed in claim 1 is characterized in that, described flexible resistor formula pressure transducer (1) with machine-knitted structure is applied in sleeping position detects on the clothes (9).
8. a kind of application with flexible resistor formula pressure transducer of machine-knitted structure as claimed in claim 7 is characterized in that, respectively flexible resistor formula pressure transducer (1) is arranged on shirtfront, back, left side and right side that described sleeping position detects clothes (9).
9. a kind of application as claimed in claim 8 with flexible resistor formula pressure transducer of machine-knitted structure, it is characterized in that described flexible resistor formula pressure transducer (1) connects signaling conversion circuit (21), microcontroller (22), warning circuit (23) and the antenna (24) of series connection mutually.
10. require each described a kind of application with flexible resistor formula pressure transducer of machine-knitted structure in 7 to 9 as power, it is characterized in that, it is bandage that described sleeping position detects clothes (9).
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| CNA2008102021473A CN101393058A (en) | 2008-11-03 | 2008-11-03 | Flexible resistance type pressure sensor with machine-weaved structure and use thereof |
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| CNA2008102021473A CN101393058A (en) | 2008-11-03 | 2008-11-03 | Flexible resistance type pressure sensor with machine-weaved structure and use thereof |
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Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002791A (en) * | 2010-11-29 | 2011-04-06 | 武汉纺织大学 | Touch electronic fabric |
| CN102062654A (en) * | 2009-11-12 | 2011-05-18 | 无锡千里信步精密机电科技有限公司 | 2D design of multidimensional matrix sensors applying flexible liquid enclosed pressure sensors |
| WO2012037843A1 (en) * | 2010-09-20 | 2012-03-29 | 香港纺织及成衣研发中心 | Process for manufacturing fabric pressure sensor and tool for manufacturing fabric pressure sensor |
| WO2012058973A1 (en) * | 2010-11-01 | 2012-05-10 | 香港纺织及成衣研发中心 | Film type wind pressure sensor and corresponding wireless sensor network |
| WO2012075924A1 (en) * | 2010-12-07 | 2012-06-14 | J.T. Labs Limited | Sleep-posture sensing and monitoring system |
| CN102521949A (en) * | 2011-12-29 | 2012-06-27 | 四川大学 | Method for using wind chime to prompt change of child sleeping posture |
| ES2393395A1 (en) * | 2010-03-18 | 2012-12-20 | Comersan, S.A. | Heating fabric. (Machine-translation by Google Translate, not legally binding) |
| CN104720820A (en) * | 2015-03-24 | 2015-06-24 | 赵君雄 | Sleeping posture recorder |
| CN104754291A (en) * | 2013-12-30 | 2015-07-01 | 中国移动通信集团公司 | Electronic adhesive tape and article monitoring method |
| CN105700678A (en) * | 2015-12-30 | 2016-06-22 | 联想(北京)有限公司 | Electronic device and detection method |
| CN106894133A (en) * | 2017-03-03 | 2017-06-27 | 东华大学 | A kind of stretchable multi-dimensional force sensing yarn of resistance-type |
| CN106996796A (en) * | 2016-01-22 | 2017-08-01 | 远东新世纪股份有限公司 | Wearable Motion Sensing Device |
| CN107144379A (en) * | 2017-04-28 | 2017-09-08 | 东华大学 | A kind of resistive pressure is distributed fabric sensor |
| CN107385623A (en) * | 2017-09-06 | 2017-11-24 | 上海工程技术大学 | A kind of flexible strain sensing woven fabric and its manufacture craft |
| CN107607031A (en) * | 2017-10-17 | 2018-01-19 | 广州中国科学院工业技术研究院 | Mesh sensor and measuring method |
| CN107694009A (en) * | 2017-11-30 | 2018-02-16 | 佛山市神风航空科技有限公司 | A kind of intelligent body-building pad |
| CN108007615A (en) * | 2016-11-01 | 2018-05-08 | 波音公司 | Integrated form based on structural fibers surpasses redundancy touch sensor network |
| CN108028860A (en) * | 2015-09-24 | 2018-05-11 | 微软技术许可有限责任公司 | Detecting event and the smart fabric for generating notice |
| CN108962601A (en) * | 2018-06-27 | 2018-12-07 | 邹可权 | A kind of flexible capacitor and its manufacturing process based on liquid metal |
| CN109253740A (en) * | 2018-09-10 | 2019-01-22 | 中原工学院 | A kind of capacitance type sensor and preparation method thereof based on nanofiber covering yarn |
| CN109307565A (en) * | 2018-08-21 | 2019-02-05 | 厦门大学 | It is a kind of can induction pressure flexible electronic skin and preparation method thereof |
| US10288499B2 (en) | 2013-05-31 | 2019-05-14 | The Hong Kong Research Institute Of Textiles And Apparel Limited | Process for manufacturing fabric pressure sensor and tool for manufacturing fabric pressure sensor |
| WO2019205193A1 (en) * | 2018-04-28 | 2019-10-31 | 五邑大学 | Flexible stress sensor made of fully textile material |
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| CN110411618A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of point contact type flexibility dynamometer |
| CN110987249A (en) * | 2019-12-09 | 2020-04-10 | 武汉纺织大学 | Fabric type pressure sensor with controllable performance and method for adjusting and controlling pressure sensing performance |
| CN112891034A (en) * | 2021-01-12 | 2021-06-04 | 武汉纺织大学 | Wearable back posture correction system |
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2008
- 2008-11-03 CN CNA2008102021473A patent/CN101393058A/en active Pending
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| CN102062654A (en) * | 2009-11-12 | 2011-05-18 | 无锡千里信步精密机电科技有限公司 | 2D design of multidimensional matrix sensors applying flexible liquid enclosed pressure sensors |
| ES2393395A1 (en) * | 2010-03-18 | 2012-12-20 | Comersan, S.A. | Heating fabric. (Machine-translation by Google Translate, not legally binding) |
| CN102410895B (en) * | 2010-09-20 | 2014-07-23 | 香港纺织及成衣研发中心 | Manufacturing method of fabric type pressure sensor and manufacturing tool |
| WO2012037843A1 (en) * | 2010-09-20 | 2012-03-29 | 香港纺织及成衣研发中心 | Process for manufacturing fabric pressure sensor and tool for manufacturing fabric pressure sensor |
| CN102410895A (en) * | 2010-09-20 | 2012-04-11 | 香港纺织及成衣研发中心 | Manufacturing method of fabric type pressure sensor and manufacturing tool |
| US9488536B2 (en) | 2010-09-20 | 2016-11-08 | The Hong Kong Research Institute Of Textiles And Apparel Limited | Process for manufacturing fabric pressure sensor |
| WO2012058973A1 (en) * | 2010-11-01 | 2012-05-10 | 香港纺织及成衣研发中心 | Film type wind pressure sensor and corresponding wireless sensor network |
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| CN102002791A (en) * | 2010-11-29 | 2011-04-06 | 武汉纺织大学 | Touch electronic fabric |
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| CN107385623A (en) * | 2017-09-06 | 2017-11-24 | 上海工程技术大学 | A kind of flexible strain sensing woven fabric and its manufacture craft |
| CN107607031A (en) * | 2017-10-17 | 2018-01-19 | 广州中国科学院工业技术研究院 | Mesh sensor and measuring method |
| CN107694009A (en) * | 2017-11-30 | 2018-02-16 | 佛山市神风航空科技有限公司 | A kind of intelligent body-building pad |
| CN110411618A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of point contact type flexibility dynamometer |
| CN110411626B (en) * | 2018-04-28 | 2021-05-11 | 五邑大学 | Dynamometer based on cross structure |
| WO2019205193A1 (en) * | 2018-04-28 | 2019-10-31 | 五邑大学 | Flexible stress sensor made of fully textile material |
| CN110411620A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of adjustable dynamometer of threshold value |
| CN110411626A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of dynamometer based on intersection construction |
| US11454557B2 (en) | 2018-04-28 | 2022-09-27 | Wuyi University | Flexible stress sensing device of full-textile materials |
| CN108962601A (en) * | 2018-06-27 | 2018-12-07 | 邹可权 | A kind of flexible capacitor and its manufacturing process based on liquid metal |
| CN109307565A (en) * | 2018-08-21 | 2019-02-05 | 厦门大学 | It is a kind of can induction pressure flexible electronic skin and preparation method thereof |
| CN109253740B (en) * | 2018-09-10 | 2021-02-12 | 中原工学院 | Capacitive sensor based on nanofiber core-spun yarn and preparation method thereof |
| CN109253740A (en) * | 2018-09-10 | 2019-01-22 | 中原工学院 | A kind of capacitance type sensor and preparation method thereof based on nanofiber covering yarn |
| CN110987249A (en) * | 2019-12-09 | 2020-04-10 | 武汉纺织大学 | Fabric type pressure sensor with controllable performance and method for adjusting and controlling pressure sensing performance |
| WO2021212927A1 (en) * | 2020-04-21 | 2021-10-28 | 武汉纺织大学 | Multifunctional sensing integrated flexible fabric-based sensor and use thereof |
| CN112891034A (en) * | 2021-01-12 | 2021-06-04 | 武汉纺织大学 | Wearable back posture correction system |
| CN113607309A (en) * | 2021-08-06 | 2021-11-05 | 南通纺织丝绸产业技术研究院 | Stretchable calotropis gigantea fiber graphene flexible sensor |
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