CN111251668A - Intelligent knitted fabric and control system - Google Patents
Intelligent knitted fabric and control system Download PDFInfo
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- CN111251668A CN111251668A CN201811466877.4A CN201811466877A CN111251668A CN 111251668 A CN111251668 A CN 111251668A CN 201811466877 A CN201811466877 A CN 201811466877A CN 111251668 A CN111251668 A CN 111251668A
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Images
Classifications
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- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
Abstract
The invention provides an intelligent knitted fabric and a control system, wherein the intelligent knitted fabric comprises: the conductive yarn and the insulating yarn along a plurality of first directions and the conductive yarn and the insulating yarn along a plurality of second direction distributions all are provided with an at least insulating yarn between two adjacent conductive yarns, first direction with the second direction is crisscross, and the nodical constitution induction point of two conductive yarns when crisscross contact. The intelligent knitted fabric is provided with the conductive yarns, and the intersection points of the two conductive yarns in staggered contact form induction points, so that the intelligent knitted fabric has the capacity of sensing and acquiring capacitance signals when electrified. Therefore, the intelligent knitted fabric is simple in manufacturing process, stable in performance and low in cost.
Description
Technical Field
The invention relates to the technical field of textiles, in particular to an intelligent knitted fabric and a control system.
Background
Currently, most of intelligent fabrics are woven fabric structures used, but many textile products require the fabric structures to be knitted fabrics, such as tight suits, knitwear, knitted gloves, and the like.
Please refer to the patent application with chinese patent No. CN108301109A, disclosing a carbon nanotube fiber knitted fabric and a method for preparing the same, mainly using a floating chemical vapor deposition direct spinning method to prepare carbon nanotube fibers, doubling and twisting the required number of carbon nanotube fibers to obtain carbon nanotube yarns, and using an automatic knitting technology to knit the carbon nanotube yarns to obtain the carbon nanotube fiber knitted fabric. However, the carbon nanotube fiber knitted fabric obtained based on the preparation method has the following defects:
1) the process is complex;
2) the performance stability of the obtained carbon nanotube fiber knitted fabric cannot be guaranteed;
3) the cost is high.
Aiming at the defects in the manufacturing process of intelligent knitted fabric in the prior art, the technical personnel in the field are always seeking a solution.
Disclosure of Invention
The invention aims to provide an intelligent knitted fabric and a control system, and aims to overcome the defects in the manufacturing process of the intelligent knitted fabric in the prior art.
In order to solve the technical problem, the invention provides an intelligent knitted fabric, which comprises: the conductive yarn and the insulating yarn along a plurality of first directions and the conductive yarn and the insulating yarn along a plurality of second direction distributions all are provided with an at least insulating yarn between two adjacent conductive yarns, first direction with the second direction is crisscross, and the nodical constitution induction point of two conductive yarns when crisscross contact.
Optionally, in the intelligent knitted fabric, the intelligent knitted fabric is a knitted touch sensing fabric and has a single-layer structure, and all the conductive yarns distributed along the first direction and all the conductive yarns distributed along the second direction are woven in a staggered manner.
Optionally, in the intelligent knitted fabric, the intelligent knitted fabric is a knitted pressure sensing fabric, and has a three-layer structure including an upper layer, a middle layer and a lower layer which are stacked, and all conductive yarns distributed along a first direction in the upper layer are interlaced with a plurality of insulating yarns distributed along a second direction; the middle layer is a filling layer; all the conductive yarns distributed along the second direction in the lower layer are interwoven with the plurality of insulating yarns distributed along the first direction.
Optionally, in the intelligent knitted fabric, the upper layer, the middle layer and the lower layer of the knitted pressure sensing fabric are fixedly connected into a whole through glue or sewing.
Optionally, in the intelligent knitted fabric, the conductive yarn is any one of metal short fibers, carbon fibers, and conductive fibers made of metal, carbon, or conductive polymers.
Optionally, in the intelligent knitted fabric, the insulating yarn is any one of cotton, hemp, silk, terylene, acrylic fiber and nylon.
Optionally, in the intelligent knitted fabric, the arrangement ratio of the conductive yarns to the insulating yarns in the same layer of the intelligent knitted fabric is 1: 1.
alternatively, in the intelligent knitted fabric, the first direction is a longitudinal direction, and the second direction is a latitudinal direction.
The present invention also provides a control system, comprising: the intelligent knitted fabric, the touch signal processing board and the main board are connected in sequence, the intelligent knitted fabric sends a capacitance signal generated when a user finger touches the intelligent knitted fabric to the touch signal processing board, the touch signal processing board obtains capacitance variation data of each sensing point on the intelligent knitted fabric according to the capacitance signal, and operation information of the user finger when the user finger touches the intelligent knitted fabric is obtained according to all the capacitance variation data; the mainboard unscrambles the operation information and sends the unscrambled information to the controlled terminal electronic equipment, and the controlled terminal electronic equipment executes the unscrambled information to realize a corresponding scene.
Optionally, in the control system, when the intelligent knitted fabric is a knitted touch sensing fabric, the capacitance variation data is coupling capacitance variation data generated between conductive yarns distributed along a first direction and conductive yarns distributed along a second direction when a user finger touches the knitted touch sensing fabric;
when the intelligent knitted fabric is a knitted pressure sensing fabric, the capacitance variation data is the capacitance variation data between the upper layer and the lower layer when the fingers of the user touch the knitted pressure sensing fabric to enable the middle layer to deform.
Optionally, in the control system, the operation information at least includes pressure information.
Optionally, in the control system, the operation information further includes finger coordinate information.
In the intelligent knitted fabric and the control system provided by the present invention, the intelligent knitted fabric includes: the conductive yarn and the insulating yarn along a plurality of first directions and the conductive yarn and the insulating yarn along a plurality of second direction distributions all are provided with an at least insulating yarn between two adjacent conductive yarns, first direction with the second direction is crisscross, and the nodical constitution induction point of two conductive yarns when crisscross contact. The intelligent knitted fabric is provided with the conductive yarns, and the intersection points of the two conductive yarns in staggered contact form induction points, so that the intelligent knitted fabric has the capacity of sensing and acquiring capacitance signals when electrified. Therefore, the intelligent knitted fabric is simple in manufacturing process, stable in performance and low in cost.
Drawings
FIG. 1 is a schematic representation of the construction of the upper or lower layer of a knitted pressure sensing fabric in one embodiment of the invention;
FIG. 2 is a schematic representation of another construction of an upper layer or a lower layer of a knitted pressure sensing fabric according to one embodiment of the present invention;
FIG. 3 is a schematic representation of the structure of a knitted pressure sensing fabric in accordance with an embodiment of the present invention;
FIG. 4a is a schematic representation of the placement of a knitted pressure sensing fabric on the front of a person's body in accordance with one embodiment of the present invention;
FIG. 4b is a schematic representation of the placement of a knitted pressure sensing fabric on the back of a person in accordance with an embodiment of the present invention;
FIG. 5a is a schematic representation of the placement of a knitted pressure sensing fabric on the front of a glove in accordance with another embodiment of the present invention;
FIG. 5b is a schematic representation of the placement of a knitted pressure sensing fabric on the back of a glove in accordance with another embodiment of the present invention;
FIG. 5c is a schematic diagram of a touch signal processing board mounted on the back of a palm according to another embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a knitted touch sensing fabric according to an embodiment of the invention;
FIG. 7 is a schematic view of another structure of a knitted touch-sensing fabric according to an embodiment of the invention;
FIG. 8 is a schematic view of the distribution of the knitted touch sensing fabric on the front side of the human body according to an embodiment of the invention;
FIG. 9 is a flow chart of the operation of the control system in one embodiment of the present invention.
The reference numbers in the figures illustrate:
in fig. 1: 101-warp knit fabric; 102-a conductive yarn; 103-insulating yarn;
in fig. 2: 201-weft knitted fabric; 202-conductive yarn; 203-insulating yarn;
in fig. 3: 301-knitting a pressure sensing fabric; 302-upper layer; 303-lower layer; 304-an intermediate layer;
in fig. 4 a: 401, 402-underarm; 403-chest; 404, 405-knee;
in fig. 4 b: 501, 502-elbow; 503-back;
in fig. 5 a: 1201-knit pressure sensing fabric installation location;
in fig. 5 b: 1101-knit pressure sensing fabric mounting location;
in fig. 5 c: 1301-touch signal processing board installation position;
in fig. 6: 701-warp knitted fabric; 702, 704-conductive yarns; 703-insulating yarn;
in fig. 7: 801-weft knitted fabric; 802, 804-conductive yarn; 803-insulating yarn;
in fig. 8: 901-an arm; 902-chest; 903-outer thigh; 904-thigh front side.
Detailed Description
The intelligent knitted fabric and the control system provided by the invention are further described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The present invention will be described in more detail with reference to the accompanying drawings, in order to make the objects and features of the present invention more comprehensible, embodiments thereof will be described in detail below, but the present invention may be implemented in various forms and should not be construed as being limited to the embodiments described.
Example one
The intelligent knitted fabric comprises: the conductive yarn and the insulating yarn along a plurality of first directions and the conductive yarn and the insulating yarn along a plurality of second direction distributions all are provided with an at least insulating yarn between two adjacent conductive yarns, first direction with the second direction is crisscross, and the nodical constitution induction point of two conductive yarns when crisscross contact. Preferably, the first direction is a longitudinal direction, and the second direction is a latitudinal direction; the arrangement ratio of the conductive yarns to the insulating yarns in the same layer of the intelligent knitted fabric includes but is not limited to 1: 1.
in this embodiment, the conductive yarn is any one of a metal short fiber, a carbon fiber, and a conductive fiber made of metal, carbon, or a conductive polymer; the insulating yarn is any one of cotton, hemp, silk, terylene, acrylic fiber and nylon, and in addition, other natural fibers or conductive yarns wrapped with insulating layers can be selected.
The intelligent knitted fabrics are knitted touch sensing fabrics or knitted pressure sensing fabrics, the difference between the two intelligent knitted fabrics is the layer structure and the layout of the conductive yarns, and the structure of each intelligent knitted fabric is explained in detail by combining the distribution of figures 1 to 5b and figures 6 to 8.
Referring to fig. 1 to 3, the intelligent knitted fabric is a knitted pressure sensing fabric 301, and has a three-layer structure including an upper layer 302, a middle layer 304 and a lower layer 303, which are stacked, wherein all conductive yarns distributed along a first direction in the upper layer 302 are interlaced with a plurality of insulating yarns distributed along a second direction; the intermediate layer 304 is a filler layer; all the conductive yarns distributed along the second direction in the lower layer 303 are interlaced with a plurality of insulating yarns distributed along the first direction. Preferably, the upper layer 302, the middle layer 304 and the lower layer 303 of the knitted pressure sensing fabric are fixedly connected into a whole by glue or sewing, the middle layer 304 plays a role of isolating the upper layer 302 from the lower layer 303, and the material of the middle layer 304 can be elastic high polymer, foam or fabric. When the knitted pressure sensing fabric receives external applied vertical pressure, the middle layer is squeezed, so that the conductive yarns in the upper layer 302 are contacted with the conductive yarns in the lower layer to form sensing points.
Specifically, as shown in fig. 1, a warp knitted fabric 101 is obtained based on a warp knitting by insulating yarns 103 and conductive yarns 102 in the longitudinal direction on the basis of a conventional warp knitting process. As shown in fig. 2, a weft knitted fabric 201 is obtained based on weaving in the latitudinal direction by insulating yarns 203 and conductive yarns 202 on the basis of a conventional weft knitting process. The upper layer or the lower layer of the knitted pressure sensing fabric is woven in the structure shown in fig. 1 or the figure, and the direction of the conductive yarn in the upper layer needs to be staggered (i.e. not parallel) with the direction of the conductive yarn in the lower layer, and in the embodiment, the two layers are perpendicular to each other.
Referring to fig. 4a and 4b, fig. 4a is a schematic view illustrating the arrangement of the knitted pressure sensing fabric installed on the front surface of the human body (i.e., the front surface of the human body is facing forward); figure 4b is a schematic view of the arrangement of the knitted pressure sensing fabric mounted on the back of the human body. As shown in FIG. 4a, a plurality of knitted pressure sensing fabrics, independent of each other, are primarily installed in the human body's armpits 401, 402, the chest 403 and the knees 404, 405. As shown in fig. 4b, is mounted on the elbows 501, 502 and back 503. The state of the human body is detected by mounting the knitted pressure sensing fabric at the above-mentioned portion.
Referring to fig. 5a and 5b, fig. 5a is a schematic view showing the arrangement of a knitted pressure sensing fabric installed on the front surface of a glove; FIG. 5b is a schematic view of the arrangement of the knitted pressure sensing fabric mounted on the back of the glove. As shown in fig. 5a, when the palm is forward, the knitted pressure sensing fabric installation position 1201 is a position corresponding to the heel of the finger. As shown in fig. 5b, the knitted pressure sensing fabric mounting location 1101 is a location corresponding to the finger joints and wrist when the hand is facing back forward. The position layout of the knitted pressure sensing fabric is installed, so that the knitted pressure sensing fabric senses the state of the palm, and other electronic equipment is controlled by analyzing the state of the palm.
Referring to fig. 6 and 7, the intelligent knitted fabric is a knitted touch sensing fabric and has a single-layer structure, and all the conductive yarns distributed along the first direction are interlaced with all the conductive yarns distributed along the second direction. Specifically, as shown in fig. 6, based on a conventional warp knitting process, conductive yarns 704 are added from the latitudinal direction on a warp knitting fabric 701 woven by insulating yarns 703 and conductive yarns 702 along the longitudinal direction, and the conductive yarns 702 in the longitudinal direction are interwoven with the conductive yarns 704 in the latitudinal direction, so as to form a knitted touch sensing fabric. Fig. 6 only shows that all the added latitudinal yarns are conductive yarns, but the added latitudinal yarns are not limited to the situation, and the conductive yarns and the insulating yarns can be added alternately, and the adding proportion is determined according to specific requirements. The warp knitting process used here is a traditional warp knitting process and is not described in detail.
As shown in fig. 7, based on the conventional weft knitting process, a knitted touch sensing fabric is manufactured by adding conductive yarns 804 from the longitudinal direction on a weft knitted fabric 801 knitted by insulating yarns 803 and conductive yarns 802 along the latitudinal direction, and interweaving the conductive yarns 802 in the latitudinal direction with the conductive yarns 804 in the longitudinal direction. Fig. 7 only shows that the added longitudinal yarns are all conductive yarns, but the adding is not limited to this case, and the conductive yarns and the insulating yarns can be added alternately, and the adding proportion is determined according to specific requirements. The weft knitting process used herein is a conventional weft knitting process and is not described in detail.
Please refer to fig. 8, which is a schematic diagram illustrating the distribution of the knitted touch sensing fabric on the front surface of the human body. As shown in fig. 8, a plurality of mutually independent knitted touch sensing fabrics are mounted on the front surface of a human body, and can be selectively mounted on a knitted garment, wherein the specific mounting positions are an arm 901, a chest 902, an outer thigh 903 and an inner thigh 904. The knitted touch sensing fabric can be installed at all the parts, and the knitted touch sensing fabric can also be installed at part of the parts.
Example two
Fig. 9 is a flowchart of a control system according to the present invention. As shown in fig. 9, the control system includes: the intelligent knitted fabric, the touch signal processing board and the main board are connected in sequence, the intelligent knitted fabric sends a capacitance signal generated when a user finger touches the intelligent knitted fabric to the touch signal processing board, the touch signal processing board obtains capacitance variation data of each sensing point on the intelligent knitted fabric according to the capacitance signal, and operation information of the user finger when the user finger touches the intelligent knitted fabric is obtained according to all the capacitance variation data; the mainboard unscrambles the operation information and sends the unscrambled information to the controlled terminal electronic equipment, and the controlled terminal electronic equipment executes the unscrambled information to realize a corresponding scene.
In this embodiment, when the intelligent knitted fabric is attached to a wearing article and a plurality of intelligent knitted fabrics are attached to different positions of the same wearing article (for example, clothes, gloves, etc.), the plurality of intelligent knitted fabrics are independent of each other and are each connected to a touch signal processing board having a signal processing function.
Specifically, the mainboard comprises a power management module, a battery charging module, an I2C communication module, a main control chip and a Bluetooth module; the power management module is used for monitoring and managing power signals, keeping the stability of power voltage and current and detecting the residual electric quantity; the battery charging module is used for charging the lithium battery; the I2C communication module is used for establishing communication between the main board and the touch signal processing board; the Bluetooth module is used for establishing communication between the mainboard and the controlled terminal electronic equipment; the main control chip is used for reading the received operation information.
Specifically, when the intelligent knitted fabric is a knitted touch sensing fabric, the capacitance variation data is coupling capacitance variation data generated between conductive yarns distributed along a first direction and conductive yarns distributed along a second direction when a user finger touches the knitted touch sensing fabric. Specifically, since the distance between the conductive yarns distributed along two directions in the knitted touch sensing fabric is substantially unchanged, the capacitance between the conductive yarns distributed along two directions is influenced by the coupling capacitance generated by the hand, and the influence is fixed, so that the position of the finger touching the fabric is detected, and the touch function is realized by analyzing the information.
When the intelligent knitted fabric is a knitted pressure sensing fabric, the capacitance variation data is capacitance variation data between an upper layer and a lower layer when a user finger touches the knitted pressure sensing fabric. Specifically, when a user finger touches the knitted pressure sensing fabric, the middle layer of the knitted pressure sensing fabric deforms, so that the distance between the conductive yarns in the upper layer and the conductive yarns in the lower layer are changed, the capacitance between the upper layer and the lower layer is changed, and the pressure value applied when the user finger touches the knitted pressure sensing fabric is reflected, and the pressure value can be used for analysis and can also be used for controlling other devices.
Further, the operation information includes at least pressure information; in addition, the operation information further comprises finger coordinate information, and interpretation information obtained by interpreting the main board according to the pressure information and the finger coordinate information is gesture information.
For better understanding of the control system of the present invention, the operation of the control system will be described in detail below with reference to the knitted pressure sensing fabric being mounted on the front and back of the glove as an example.
Referring to fig. 5a to 5c, in the control system, the touch signal processing board is installed on the back of the palm, and the working process of the control system is as follows:
s1: sensing a capacitance signal generated at the mounting part when the knitted pressure sensing fabric mounted on the palm is subjected to extrusion force, and sending the capacitance signal to the touch signal processing board;
s2: the touch signal processing board calculates capacitance variation data of each sensing point on the knitted pressure sensing fabric before and after the extrusion force based on the received capacitance signals so as to calculate pressure information of each sensing point;
s3: the main board obtains pressure information processed by the touch signal processing board through an I2C interface, calculates deformation information of the knitted pressure sensing fabric according to the pressure information, and sends the deformation information to the controlled terminal electronic equipment;
s4: the controlled terminal electronic equipment acquires deformation information sent by the mainboard through the Bluetooth interface, and comprehensively analyzes the deformation information to evaluate the state of the palm, so that the controlled terminal electronic equipment is controlled to make corresponding response.
In summary, in the intelligent knitted fabric and the control system provided by the present invention, the intelligent knitted fabric includes: the conductive yarn and the insulating yarn along a plurality of first directions and the conductive yarn and the insulating yarn along a plurality of second direction distributions all are provided with an at least insulating yarn between two adjacent conductive yarns, first direction with the second direction is crisscross, and the nodical constitution induction point of two conductive yarns when crisscross contact. The intelligent knitted fabric is provided with the conductive yarns, and the intersection points of the two conductive yarns in staggered contact form induction points, so that the intelligent knitted fabric has the capacity of sensing and acquiring capacitance signals when electrified. Therefore, the intelligent knitted fabric is simple in manufacturing process, stable in performance and low in cost.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (12)
1. An intelligent knitted fabric, comprising: the conductive yarn and the insulating yarn along a plurality of first directions and the conductive yarn and the insulating yarn along a plurality of second direction distributions all are provided with an at least insulating yarn between two adjacent conductive yarns, first direction with the second direction is crisscross, and the nodical constitution induction point of two conductive yarns when crisscross contact.
2. The intelligent knitted fabric according to claim 1, wherein the intelligent knitted fabric is a knitted touch sensing fabric having a single-layer structure, and all conductive yarns distributed along a first direction are interlaced with all conductive yarns distributed along a second direction.
3. The intelligent knitted fabric according to claim 1, wherein the intelligent knitted fabric is a knitted pressure sensing fabric and has a three-layer structure comprising an upper layer, a middle layer and a lower layer which are arranged in a stacked manner, and all conductive yarns distributed along a first direction in the upper layer are interwoven with a plurality of insulating yarns distributed along a second direction; the middle layer is a filling layer; all the conductive yarns distributed along the second direction in the lower layer are interwoven with the plurality of insulating yarns distributed along the first direction.
4. The intelligent knitted fabric according to claim 3, wherein the upper layer, the middle layer and the lower layer of the knitted pressure sensing fabric are fixedly connected into a whole through glue or sewing.
5. The intelligent knitted fabric according to claim 1, wherein the conductive yarn is any one of metal short fibers, carbon fibers, conductive fibers made of metal, carbon, or conductive polymer.
6. The intelligent knitted fabric according to claim 1, wherein the insulating yarn is any one of cotton, hemp, silk, terylene, acrylon and nylon.
7. The intelligent knitted fabric according to claim 1, wherein the conductive yarns and the insulating yarns distributed in the same direction in the same layer of the intelligent knitted fabric are arranged in a ratio of 1: 1.
8. the intelligent knitted fabric of claim 1, wherein the first direction is a longitudinal direction and the second direction is a latitudinal direction.
9. A control system, comprising: the intelligent knitted fabric, the touch signal processing board and the main board are sequentially connected, the intelligent knitted fabric receives a capacitance signal generated when a user finger touches the intelligent knitted fabric and sends the capacitance signal to the touch signal processing board, the touch signal processing board obtains capacitance variation data of each sensing point on the intelligent knitted fabric according to the capacitance signal, and operation information when the user finger touches the intelligent knitted fabric is obtained according to all the capacitance variation data; the mainboard unscrambles the operation information and sends the unscrambled information to the controlled terminal electronic equipment, and the controlled terminal electronic equipment executes the unscrambled information to realize a corresponding scene.
10. The intelligent knitted fabric according to claim 9, wherein when the intelligent knitted fabric is a knitted touch-sensing fabric, the capacitance variation data is coupling capacitance variation data generated between conductive yarns distributed along a first direction and conductive yarns distributed along a second direction when a user finger touches the knitted touch-sensing fabric;
when the intelligent knitted fabric is a knitted pressure sensing fabric, the capacitance variation data is the capacitance variation data between the upper layer and the lower layer when the fingers of the user touch the knitted pressure sensing fabric to enable the middle layer to deform.
11. The intelligent knitted fabric of claim 9, wherein the operational information includes at least pressure information.
12. The intelligent knitted fabric of claim 11, wherein the operation information further comprises finger coordinate information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811466877.4A CN111251668A (en) | 2018-12-03 | 2018-12-03 | Intelligent knitted fabric and control system |
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| CN201811466877.4A CN111251668A (en) | 2018-12-03 | 2018-12-03 | Intelligent knitted fabric and control system |
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