WO2022163955A1

WO2022163955A1 - Key input device, smart mat including key input device, interactive fitness system, and control method therefor

Info

Publication number: WO2022163955A1
Application number: PCT/KR2021/008388
Authority: WO
Inventors: 유성호; 강민기; 홍성진; 박태준; 남기연
Original assignee: 주식회사 오몰래
Priority date: 2021-02-01
Filing date: 2021-07-01
Publication date: 2022-08-04

Abstract

The present invention relates to a key input device that is applicable to a smart mat and a smart mat to which same is applied. In detail, the present invention relates to a key input device comprising: a first layer in which a plurality of row contacts are formed; a second layer in which a plurality of column contacts are formed; and a processor which detects that at least one of a plurality of key switches is pressed, the plurality of key switches being formed by the plurality of row contacts and the plurality of column contacts.

Description

A key input device, a smart mat having a key input device, an interactive fitness system, and a method for controlling the same

The present invention relates to a key input device, a smart mat, an interactive fitness system, and a control method thereof, and more particularly, to a key input device for improving recognition accuracy when applied to a large area such as a mat, a smart mat, and control thereof it's about how

A key input device used as an input device for a PC or a notebook computer is a typical key input device. A plurality of keys are arranged, and when a key is sensed, the detection result is transmitted to a PC or notebook computer.

For effective key input detection, it is common to use a sensing structure in the form of a key matrix.

If such a key matrix structure is used, the user's touch or pressure applied to the plate mat installed on the floor or wall may be sensed. As an example, a key input device is provided in a layered form in which a key input device is stacked inside a training mat installed on the floor, so that a user may sense movement on the mat.

However, the existing key matrix structure is optimized when a plurality of physical keys are provided in a narrow area such as a keyboard, and thus there is a problem in that recognition accuracy is deteriorated when applied to a wide area such as a mat.

In addition, the existing key matrix structure has a problem in that misrecognition occurs due to ghosting when there are three or more key inputs.

Therefore, in the case of the existing case, research on a key matrix structure that minimizes misrecognition and enables accurate recognition is required even if it is applied in a wider area.

An object of the present invention is to provide a device capable of inputting a key with high accuracy without switching using a physical key.

Another object to be solved by the present invention is to provide a key input device for detecting a user's touch or pressure on a large area such as a mat.

Another object of the present invention is to provide a key input device that minimizes misrecognition such as ghosting even when a plurality of points are simultaneously pressed.

Another problem to be solved by the present invention is to provide a smart mat and an interactive fitness system based on the key input device.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

According to an aspect of the present invention to achieve the above or other objects, a plurality of row contacts (Row Contact) is formed in a first layer; a second layer in which a plurality of column contacts are formed; and a processor for sensing that at least one of a plurality of key switches formed by the plurality of row contacts and the plurality of column contacts is pressed.

The plurality of row contacts are configured to include a plurality of row electrode lines connected to each other,

The plurality of column contacts are configured to include a plurality of column electrode lines connected to each other,

keystroke device.

The plurality of row contacts may include a plurality of row contact units connected to each other, and the plurality of column contacts may include a plurality of column contact units connected to each other.

The number of the plurality of row contact units may be equal to the number of the plurality of column contacts, and the number of the plurality of column contact units may be equal to the number of the plurality of row contacts.

The row or column contact unit may include a plurality of electrode wire bundles disposed at a first interval and a connection line connecting between the plurality of electrode wire bundles, and the electrode wire bundle may include a plurality of electrode wires disposed at a second interval have.

A plurality of spacer dots may be formed on at least one of the first layer and the second layer.

A key region may be formed in a region where the plurality of row and column contacts cross each other.

An insulating layer may be further included to insulate between the first and second layers, wherein the insulating layer is formed except for the key region.

An adhesive layer for insulating between the first and second layers may be further included, wherein the adhesive layer may be formed except for the key region.

In the adhesive layer, an air path may be formed in a predetermined direction of the key input device.

The effect of the key input device, the smart mat based on the key input device, and the control method thereof according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, there is an advantage that a user's touch or pressure can be sensed without using the shape of a physical key.

In addition, according to at least one of the embodiments of the present invention, there is an advantage that a key input made on a plurality of points on a large area such as a mat can be more accurately detected.

Further scope of applicability of the present invention will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present invention can be clearly understood by those skilled in the art to which the present invention pertains, the specific embodiments described in the detailed description are given by way of example only. should be understood

1 is a diagram illustrating a conceptual diagram of an interactive fitness system 100 according to an embodiment of the present invention.

2 is a conceptual diagram for explaining an interactive operation according to an embodiment of the present invention.

3 illustrates a training screen of the user terminal 130 for implementing an interactive operation according to an embodiment of the present invention.

4 is a diagram showing a block diagram of the smart mat 110 according to an embodiment of the present invention.

5 is a diagram illustrating a general key sensing method based on a key matrix structure.

6 shows a stacked structure of a key input device 150 according to an embodiment of the present invention.

7 is a diagram illustrating a block diagram of a key input device 150 according to an embodiment of the present invention.

8 is a conceptual diagram in which a plurality of row and

column contacts

611 and 612 are formed according to an embodiment of the present invention.

9 illustrates key regions A1 to E4 formed by a plurality of row and

column contacts

611 and 612 according to an embodiment of the present invention.

10 is a diagram illustrating a first contact pattern 1001-1 according to a first embodiment of the present invention.

FIG. 11 is an enlarged view of a part of the first contact pattern 1001-1 of FIG. 10 .

12 is a diagram illustrating a second contact pattern 1001-2 according to a second embodiment of the present invention.

FIG. 13 is an enlarged view of a part of the second contact pattern 1001 - 2 of FIG. 12 .

14 is a diagram illustrating a third contact pattern 1001-3 according to a third embodiment of the present invention.

15 is a diagram illustrating a shape of a row contact unit 1401 according to an embodiment of the present invention.

16 shows a conceptual diagram for dividing the area of the entire smart mat 110 according to an embodiment of the present invention.

17 illustrates a spacer dot pattern 1701 formed in the row/column contact units 1401 and 1402 according to an embodiment of the present invention.

18 shows an insulating structure of the first and

second layers

601 and 603 according to an embodiment of the present invention.

19 shows an adhesive structure of the first and

second layers

601 and 603 according to an embodiment of the present invention.

20 is a diagram illustrating a row dead space 2001 for a plurality of row contacts formed on a first layer 601 according to an embodiment of the present invention.

21 is a diagram illustrating a thermal dead space 2002 for a plurality of thermal contacts formed on a second layer 603 in accordance with an embodiment of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including ordinal numbers such as first, second, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprises” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

The interactive fitness system 100 according to an embodiment of the present invention may be configured to include a smart mat 110 , a wearable terminal 120 , a user terminal 130 , and a server 140 . The components shown in FIG. 1 are not essential in implementing the interactive fitness system 100, so the interactive fitness system 100 described herein includes more or fewer components than those listed above. can have

The smart mat 110 is provided to acquire contact data, which is data that senses contact with at least a part of the user's body 190 . As a representative example, the smart mat 110 is generally provided in the form of a yoga mat used at home or a fitness center, and when the user 190 performs various operations on the smart mat 110 , the sole, knee, hand or hip It can detect contact with any part of the body, such as the back. It will be apparent that the smart mat 110 can sense a plurality of contact points at the same time.

The wearable terminal 120 is worn on a body part of the user 190 and is configured to acquire motion data, which is data that senses the motion of the body part. The wearable terminal 120 according to an embodiment of the present invention may be provided in the form of a watch or a band worn on the wrist of the user 190 . As an example, the wearable terminal 120 is a smart watch (eg, a Galaxy watch or an Apple watch), and embodiments of the present invention may be implemented through sensors provided in the smart watch.

Hereinafter, the contact data and the motion data are collectively referred to as motion data.

As shown in the drawing, the motion data detected by the wearable terminal 120 may be transmitted to the user terminal 130 through the smart mat 110, but is not necessarily limited thereto. That is, the wearable terminal 120 may send and receive data with the smart mat 110 as shown in the drawing, but exchange data with the user terminal 130 or the wearable terminal 120 is directly connected to an on/offline network. It may be possible to exchange data with the server 140 .

The user terminal 130 receives data for analyzing the behavior of the user 190 from the smart mat 110 and the wearable terminal 120 , and transmits it to the server 140 for analysis, or performs direct analysis. configuration for In addition, the user terminal 130 according to an embodiment of the present invention may output a training image to the user 190 . Such training images may be provided in real-time streaming form, but pre-recorded and stored images may be provided. Such a training image may be output in the form stored in the user terminal 130 , but the training image stored in the image database (to be described below) of the server 140 is output in a form that is provided to the user terminal 130 . it could be

According to an embodiment of the present invention, the user terminal 130 includes a mobile phone, a cellular phone, a smart phone, a personal computer, a laptop, a notebook computer, a netbook or a tablet, a personal digital assistant (PDA), a digital camera, at least one of a game console, an MP3 player, a personal multimedia player (PMP), an electronic book (E-Book), a navigation device, a disk player, a set-top box, a home appliance, a communication device, and a display device may be applicable.

The server 140 is configured to exchange data with the user terminal 130 . As an example, the server 140 may receive motion data from the user terminal 130 and analyze the motion of the user 190 .

Home training has a clear advantage of saving time and money, but there is a problem in that it is difficult to induce active participation.

In the present invention, in order to induce active participation of users, a system is proposed in which exercise can be performed with other users as well as trainers in a virtual online space, even when exercising alone at home. Through this, the user can more actively participate in the exercise, provide encouraging feedback to the users who are lagging behind, and can further improve the effect of the exercise by inducing competition with other users. To this end, the server 140 according to an embodiment of the present invention may be provided to exchange data with a plurality of user terminals 130 . The interactive concept will be described in more detail with reference to FIGS. 2 and 3 .

2 is a conceptual diagram for explaining an interactive operation according to an embodiment of the present invention. 3 illustrates a training screen of the user terminal 130 for implementing an interactive operation according to an embodiment of the present invention. It will be described with reference to FIGS. 2 and 3 together. In the illustrated drawings, a system including a plurality of user terminals 130-1 to 130-4 is described, and when an individual operation for each of the plurality of user terminals 130-1 to 130-4 is described, the user It will be referred to as the terminal 130 .

As shown in the drawing, the interactive fitness system 100 according to an embodiment of the present invention provides a system in which a plurality of users 190-1 to 190-4 can perform home training together. Each of the plurality of users 190-1 to 190-4 may exchange data with the server 140 through their user terminals 130-1 to 130-4.

According to an embodiment of the present invention, the server 140 may provide the training image 300 to the plurality of user terminals 130-1 to 130-4. At this time, the provided training image 300 may be provided in a real-time streaming form, or a pre-recorded and stored image may be provided as described above.

A plurality of users (190-1 to 190-4) perform training at each other's homes, but by watching the same training image 300 and feeling as if training together, it is better than when training alone Active participation can be expected.

In this case, the user 190 may perform training in accordance with the output training image 300 while wearing the wearable terminal 120 on the respective smart mat 110 . The user terminal 130 may receive the motion data obtained by the smart mat 110 and the wearable terminal 120 and transmit it to the server 140 .

When the server 140 receives the motion data, the server 140 may check whether the user 190 is correctly performing training based on the motion data. In addition, the server 140 may provide calorie data obtained by calculating calories consumed based on the received motion data to the user terminal 130 . Based on the calorie data, the user terminal 130 may output the consumed calorie information 301 .

The server 140 determines the ranking of each user based on the motion data received from the plurality of user terminals 130-1 to 130-4, and transmits the ranking information thereto to the plurality of user terminals 130-1 to 130- 4) It can be provided to each. Each user terminal 130 that has received the ranking information may output the current ranking information 302 and the overall ranking information 303 . As in the illustrated example, the overall ranking information 303 is displayed along with the ranking information of other users 190 who are currently viewing the same training image 300, and the ranking can be provided in the form of a profile image 310. .

Furthermore, the user terminal 130 according to an embodiment of the present invention may output a feedback voice based on the received ranking information.

When the training image 300 is provided in a real-time streaming form, the trainer 200 shoots the training image 300 in real time through the camera 201, and provides the captured training image 300 to the server 140 can give

Server 140 according to an embodiment of the present invention, based on the motion data received from the plurality of user terminals (130-1 ~ 130-4), monitors whether the users are properly performing the exercise in real time, A real-time monitoring screen outputting the monitoring result may be provided through the user terminal 130 ′ of the trainer 200 , hereinafter referred to as a trainer user terminal. The trainer 200 refers to the real-time monitoring screen, and if there is a user who is performing well in training among a plurality of users (190-1 ~ 190-4), it gives a praise feedback, or if there is a user who does not follow it properly, incorrect posture You can encourage active participation by pointing out or giving encouraging feedback. Such feedback of the trainer 200 may be delivered to each user terminal 130 through real-time streaming.

In the illustrated example, the camera 201 is connected to the trainer terminal 130' to perform shooting for a real-time streaming image, but it is not necessarily limited thereto and the camera 201 does not go through the trainer terminal 130'. It may be possible to provide a streaming video directly to the server 140 .

In the illustrated drawings, an embodiment in which the training image 300 is provided in the form of real-time streaming has been described, but the same may be applied to an embodiment in which a pre-recorded image stored in the image DB of the server 140 is provided. is self-evident

The smart mat 110 may include a mat sensing unit 111 , a mat control unit 112 , a mat communication unit 113 , a mat power supply unit 114 , and a mat output unit 115 . The components shown in FIG. 4 are not essential in implementing the smart mat 110, so the smart mat 110 described herein may have more or fewer components than the components listed above. have.

The mat sensing unit 111 detects contact with at least a portion of the body of the user 190 . The mat sensing unit 111 detects contact between the soles of the feet, knees, hands, and hips while the user 190 is training on the smart mat 110 . For example, the mat sensing unit 111 may sense this contact through a pressure sensing method. The mat sensing unit 111 according to an embodiment of the present invention may sense a contact position and area.

Meanwhile, the mat sensing unit 111 may be configured to include a key input device 150 according to an embodiment of the present invention, which will be described later. The key input device 150 is a device that divides the entire area of the smart mat 110 into a plurality of areas, and determines whether a contact occurs in the divided areas.

The mat control unit 112 controls the overall operation of the smart mat 110 . The mat control unit 112 may determine whether the user 190 is performing training correctly based on the motion data. It is only an example that such determination is performed on the smart mat 110 , and the determination may be performed in at least one of the smart mat 110 , the user terminal 130 and the server 140 .

The mat communication unit 113 is configured to exchange data with at least one of the wearable terminal 120 , the user terminal 130 , and the server 140 .

The mat power supply unit 114 supplies power to each component included in the smart mat 110 by receiving external power and internal power under the control of the mat control unit 112 . The mat power supply 114 includes a battery, and the battery may be a built-in battery or a replaceable battery.

The mat output unit 115 may output a determination result as to whether the user 190 is correctly performing training. As described above, the determination output through the mat output unit 115 may be a determination made by the mat control unit 112 , but may also be a determination made by the server 140 or

other terminals

120 and 130 . For example, the feedback voice may be output through the mat output unit 115 .

Before describing a specific embodiment of the key input device 150 , a method of detecting a key through a key matrix structure will be described with reference to FIG. 5 .

5 is a diagram illustrating a general key sensing method based on a key matrix structure. 5 is an exemplary diagram of a simple key matrix circuit, and explains the basic principle of a key matrix sensing method based on an example of a simple key matrix having 9 keys.

As shown, when three horizontal row electrode wires 501-1 to 501-3 and three vertical column electrode wires 502-1 to 502-3 meet, nine switches S1 to S9 are located at the intersection points is determined The row electrode lines 501-1 to 501-3 are respectively connected to the output terminals of OUT 1 to OUT 3, and the column electrode lines 502-1 to 502-3 are respectively connected to the input terminals of IN 1 to IN 3, respectively. . When a predetermined key is pressed, the corresponding switch operates to close. Hereinafter, it is used as the same meaning as pressing a key and switching (or switching operation).

The processor built into the key input device scans the input terminals of IN 1 to IN 3 while sequentially applying a low potential signal (logic 0) to the output terminals of OUT 1 to OUT 3 . When the key is not pressed, a high potential signal (logic 1) is output from each input terminal and when the key is pressed, a low potential signal is output. It can be detected that the key at the point where the terminals intersect is pressed. The processor may check which key is pressed through such a key scan process.

To explain this in more detail, the processor sends a logical 0 to OUT 1 and reads IN 1 to 3, then sends a logical 0 to OUT 2 and reads IN 1 to 3 again. Then, it scans whether a key is pressed by sending a logic 0 to OUT 3 again, reading IN 1 to 3, and sending a logic 0 to OUT 1 to 3 again.

In this process, if no key is pressed, logic 1 is measured from IN 1 to 3. However, when any key is pressed, there are places where logic 0 is measured from IN 1 to 3 that are input. When IN 1 is measured as logic 0, one of S1, S4, and S7 is pressed, and when IN 2 becomes logic 0, one of S2, S5, and S8 is pressed. When IN 3 becomes 0, one of S3, S6 and S9 is pressed.

To find out which key was pressed, you just need to check whether logic 0 is applied to any of OUT 1 to 3. Assuming that IN 2 becomes logical 0 when outputting logical 0 to OUT 2, there is only S5 where OUT 2 and IN 2 meet. In the end, it can be seen that S5 has been pressed.

6 shows a stacked structure of a key input device 150 according to an embodiment of the present invention. 7 is a diagram showing a block diagram of the key input device 150 according to the first embodiment of the present invention. In the first embodiment related to FIG. 7 , the spacer layer 602 is inserted between the first and

second layers

601 and 603 , but this is one embodiment and the present invention is limited to this form it doesn't happen In the second embodiment described later with reference to FIG. 17 , a spacer dot shape may be provided instead of the spacer layer 602 .

A key input device 150 according to an embodiment of the present invention includes a first layer 601 , a spacer layer 602 , a second layer 603 , a plurality of row contacts 611 , and a plurality of column contacts 612 . ), a plurality of key switches 604 and a processor 605 may be configured to include. The components shown in FIG. 7 are not essential for implementing the key input device 150, so the key input device 150 described herein may include more or fewer components than those listed above. can have

In the key input device 150 according to an embodiment of the present invention, a first layer 601 forming the plurality of row contacts 611 and a second layer 603 forming the plurality of column contacts 612 are provided. It may be configured to include The first and

second layers

601 and 603 may be provided to overlap each other so that the plurality of column and

row contacts

611 and 612 formed in each layer cross each other.

The plurality of row and

column contacts

611 and 612 may perform operations corresponding to the row and column electrode lines 501 and 502 in FIG. 5 described above. That is, each of the plurality of row contacts 511 may be connected to the processor 605 through an output terminal, and each of the plurality of column contacts 612 may be connected to the processor 605 through an input terminal. The processor 605 may check which key (or key region) is pressed through the key scanning process described above with reference to FIG. 5 .

For example, the first and

second layers

601 and 603 may form a plurality of row and

column contacts

611 and 612 in the form of printing with conductive ink on a thin film made of a material such as PE. A spacer layer 602 may be further provided between the first and

second layers

601 and 603 to prevent contact between the plurality of row and

column contacts

611 and 612 when there is no contact or no pressure is applied. There will be.

Each of the plurality of row and

column contacts

611 and 612 according to an embodiment of the present invention may include a plurality of row electrode lines and a plurality of column electrode lines.

The spacer layer 602 according to an embodiment of the present invention forms a hole 610 in each of a plurality of key regions, and prevents contact between the first and

second layers

601 and 603 except for the plurality of key regions. can be blocked And when contact is made or pressure is applied by the user, the row and

column contacts

611 and 612 may contact each other through the hole formed in the key region.

A key region according to an embodiment of the present invention is a point at which a plurality of row contacts 611 and a plurality of column contacts 612 intersect, and a region where a switching operation occurs when the row and

column contacts

611 and 612 contact each other. can mean

The plurality of key switches 604 are formed by a plurality of row contacts 611 and a plurality of column contacts 612 . More specifically, the plurality of key switches 604 may be provided in a plurality of key regions to contact or drop the row and

column contacts

611 and 612 to each other according to a user's contact or pressure.

The processor 605 detects that at least one of the plurality of key switches 604 is pressed. Here, that the key switch 604 is pressed may be a switching operation. That is, the processor 605 may detect a switch operation performed on at least one of the plurality of key switches 604 .

Hereinafter, a plurality of key regions formed based on the row and

column contacts

611 and 612 according to an embodiment of the present invention will be described with reference to FIGS. 8 and 9 .

8 is a conceptual diagram in which a plurality of row and

column contacts

611 and 612 are formed according to an embodiment of the present invention. 9 illustrates key regions A1 to E4 formed by a plurality of row and

column contacts

611 and 612 according to an embodiment of the present invention. It will be described with reference to FIGS. 8 and 9 together.

In the illustrated drawings, the plurality of row contacts 611 is shown as 4 and the plurality of column contacts 612 is shown as 5, but the present invention is not limited to these numbers.

Although the first layer 601 and the second layer 603 are shown separately from each other in FIG. 8 , the first and

second layers

601 and 603 may be provided in an overlapping state as in FIG. 9 . is self-evident

Each of the plurality of row contacts 611-1 to 611-4 is connected to the processor 605 through an output terminal. Similarly, each of the plurality of column contacts 612-1 to 612-5 is connected to the processor 605 through an input terminal.

As shown in FIG. 9 , a plurality of key regions A1 to E4 may be formed at points where the plurality of row and

column contacts

611 and 612 intersect. The number of the plurality of key regions A1 to E4 formed is N X M when the number of the plurality of row contacts 611 is N and the number of the plurality of column contacts 612 is M. There will be.

For example, when a user's contact occurs in the key area A1, the processor 605 may detect an energization between the first row contact 611-1 and the first column contact 612-1 (Fig. As in the key scan process in 5). The processor 605 may determine that a contact has occurred in the key area A1, which is a point where the first row contact 611-1 and the first column contact 612-1 intersect, based on the detection result as described above. .

When the above-described key scanning process is repeatedly performed in the plurality of key areas A1 to E4 , a sensing operation for the body of the user 190 may be performed on the smart mat 110 described in FIG. 4 .

On the other hand, in order to effectively sense the contact made on the key region, the shape or shape of the plurality of row and

column contacts

611 and 612 may be important. The shape or shape of the row and

column contacts

611 and 612 thus formed is hereinafter referred to as a contact pattern. Hereinafter, the contact pattern will be described in more detail with reference to FIGS. 10 to 13 .

10 is a diagram illustrating a first contact pattern 1001-1 according to a first embodiment of the present invention. FIG. 11 is an enlarged view of a part of the first contact pattern 1001-1 of FIG. 10 . It will be described with reference to FIGS. 10 and 11 together.

10 and 11 , a plurality of row contacts 611 are illustrated by solid lines, and a plurality of column contacts 612 are illustrated by dotted lines. The row and

column contacts

611 and 612 are formed on different layers and are kept spaced apart by a predetermined distance by the above-described spacer layer 602, so they appear overlapping in the drawing, but are not actually in contact. will be able

A plurality of key regions A1 to B2 may be formed on the first contact pattern 1001-1.

The first contact pattern 1001-1 according to the first embodiment of the present invention is proposed to be formed of a plurality of row or column electrode lines 501-1 to 501-5. As shown in FIG. 11 , the first row contacts 611-1 are formed of first and second row electrode lines 501-1 and 501-2 arranged in parallel. In addition, the second row contacts 611-2 are formed of third to fifth row electrode lines 501-3 to 501-5 arranged in parallel.

Similarly, the first column contact 611-1 is formed of first and second column electrode lines 502-1 and 502-2 arranged in parallel. And the second row contact 611-2 is formed of third to fifth row electrode lines 502-3 to 502-5 arranged in parallel.

Referring to the illustrated drawing, a key region is formed in a region where one row contact and one column contact overlap. For example, a key region A1 is formed in a region where the first row contact 611-1 and the first column contact 612-1 overlap.

The number of intersection points (hereinafter referred to as intersection points) in the key region may vary according to the number of electrode lines forming each contact. For example, in the key region A1, two row electrode lines 501-1 and 501-2 and two column electrode lines 502-1 and 502-2 meet to form four intersections. In the key region B2, three row electrode lines 501-3 to 501-5 and three column electrode lines 502-3 to 502-5 meet to form nine intersections.

Although a plurality of intersection points are formed on one key area, the same key signal will be generated on the same key area regardless of which of the plurality of intersection points a switching operation (contact between row and column electrode lines) occurs.

12 is a diagram illustrating a second contact pattern 1001-2 according to a second embodiment of the present invention. FIG. 13 is an enlarged view of a part of the second contact pattern 1001 - 2 of FIG. 12 . It will be described with reference to FIGS. 12 and 13 together.

In FIG. 13 , a plurality of row contacts 611 are illustrated in a diagonal pattern, and a plurality of column contacts 612 are illustrated in a double diagonal pattern. The row and

column contacts

The second contact pattern 1001-2 according to the second embodiment of the present invention is proposed to be formed of a plurality of row or column electrode lines.

Unlike the above-described first embodiment, the second contact pattern 1001-2 according to the second embodiment has a relatively larger number of rows or columns than in the first embodiment more densely (narrow spacing between adjacent electrode lines). The second contact pattern 1001 - 2 may be formed with the electrode line.

Meanwhile, according to the contact pattern 1101 - 2 of FIGS. 12 and 13 , there is a problem in that, although one key switch is pressed, it is erroneously recognized that adjacent key switches are pressed together. It is analyzed that this misrecognition is due to the parasitic capacitance generated by the relatively densely provided electrode lines. Hereinafter, the contact patterns 1101-3 of FIGS. 14 and 15 are proposed in order to solve such a problem.

14 is a diagram illustrating a third contact pattern 1001-3 according to a third embodiment of the present invention. 15 is a diagram illustrating a shape of a row contact unit 1401 according to an embodiment of the present invention.

As shown in the drawing, the plurality of row contacts 611 may be configured to include a plurality of row contact units 1401-1 to 1401-4. In addition, the plurality of row contact units 1401-1 to 1401-4 included in one row contact 611 may be connected to each other to be connected to the processor 605 through one output terminal.

As shown, the plurality of row contact units 1401-1 to 1401-4 included in the first row contact 611-1 are connected to each other through electrode lines. The plurality of row contact units 1401-1 to 1401-4 connected in this way may be connected to the processor 605 through one output terminal.

Similarly, the plurality of thermal contacts 612 may be configured to include a plurality of thermal contact units 1402-1 to 1402-4. In addition, the plurality of column contact units 1402-1 to 1402-4 included in one column contact 612 may be connected to each other to be connected to the processor 605 through one input terminal.

As illustrated, the plurality of column contact units 1402-1 to 1402-4 included in the first column contact 612-1 are connected to each other through electrode lines. The plurality of thermal contact units 1402-1 to 1402-4 connected in this way may be connected to the processor 605 through one input terminal.

Furthermore, the number of row contact units 1401-1 to 1401-4 according to an embodiment of the present invention is proposed to match the number of the plurality of column contacts 612 . In the illustrated FIG. 14 , since the number of column contacts 612 is four, the number of row contact units 1401-1 to 1401-4 may also be four.

Similarly, the number of column contact units 1402-1 to 1402-3 according to an embodiment of the present invention is proposed to match the number of the plurality of row contacts 611 . In the illustrated FIG. 14 , since the number of row contacts 611 is three, the number of column contact units 1402-1 to 1402-3 may also be three.

Referring to FIG. 15 , the shape of the row contact unit 1401 will be described in detail. In FIG. 15 , the row contact unit 1401 is described as a reference, but when the row contact unit 1401 is rotated, the column contact unit 1402 may have a shape.

A row contact unit 1401 according to an embodiment of the present invention includes a plurality of electrode wire bundles 1502-1 to 1502-3 and the plurality of electrode wire bundles 1502-1 disposed at a first interval 1501-1. to 1502-3), and the electrode wire bundle includes a plurality of electrode wires arranged at second intervals 1501-2.

Referring to the illustrated shape of the row contact unit 1401, a pattern having an 'empty space (space between electrode wire bundles having a first interval)' inside reduces the area of the entire conductive wire, thereby preventing misrecognition due to parasitic capacitance. can be minimized.

On the other hand, the first to third contact patterns 1001-1 to 1001-3 described above may be suitable to cover a certain area, and cover the entire area of the smart mat 110 according to an embodiment of the present invention. It may be somewhat insufficient. To this end, in one embodiment of the present invention, the area of the entire smart mat 110 is divided into a plurality of areas, and the above-described first to third contact patterns 1001-1 to 1001-3 are applied to each partitioned area. Suggest to apply

16 shows a conceptual diagram for dividing the area of the entire smart mat 110 according to an embodiment of the present invention. According to the drawing, the total area of the smart mat 110 is divided into eight regions 1601-1 to 1601-8, but the present invention is not limited to this number.

The processor 605 is configured to include a plurality of sub-processors 605-1 to 605-8 for processing each of the plurality of regions 1601-1 to 1601-8. The plurality of sub-processors 605-1 to 605-8 are connected to each of the plurality of regions 1601-1 to 1601-8 to individually sense a contact made on the divided area. In addition, the plurality of sub-processors 605 - 1 to 605 - 8 transmits the detection result to the processor 605 .

The processor 605 detects the user's body contact made on the entire smart mat 110 based on the detected results from the plurality of sub-processors 605-1 to 605-8.

When processing each of the plurality of regions 1601-1 to 1601-8 as described above, the sensing speed for each region may be increased, and the sensing resolution for each individual region may be improved. This is because the number of key regions that can be processed by one processor (the number of key regions that can be simultaneously processed) is limited.

On the other hand, the smart mat 110 according to an embodiment of the present invention can be stored in the form of rolling the mat during storage (when not exercising). Accordingly, in an embodiment of the present invention, it is proposed to have a layer structure of the smart mat 110 that is easy to store.

On the other hand, as in the embodiment described above together with FIG. 7 , when

several layers

601 , 602 , and 603 are provided in an overlapping form, it will not be easy to roll. This is because, when rolled, a gap occurs between the inner layer and the outer layer due to the difference in radius between the layers.

In order to solve this problem, in the second embodiment of the present invention, instead of providing the spacer layer 602 , it is proposed to form spacer dots on any one of the first and

second layers

601 and 603 . That is, the spacer dots serving as the spacer layer 602 are provided in one of the first and

second layers

601 and 603 .

Fig. 17 shows a spacer dot pattern 1701 formed in the row/column contact units 1401 and 1402 according to the second embodiment of the present invention. In order to prevent the row/column contact units 1401 and 1402 from contacting each other, a spacer dot pattern 1701 is formed to form spacer dots between the plurality of electrode wire bundles 1502-1 to 1502-3.

More specifically, the spacer dot pattern 1701 may be formed such that the spacer dots are provided between the plurality of electrode wire bundles 1502-1 to 1502-3 formed at the second interval 1501-2.

When formed in this way, spacer dot spaces 1701-1 to 1701-4 may be formed between the plurality of electrode wire bundles 1502-1 to 1502-3 formed with a first interval 1501-1 in the center. will be able

Meanwhile, the first and

second layers

601 and 603 are proposed to be adhered to each other. This bonding method will be described in more detail with reference to the drawings below.

18 shows an insulating structure of the first and

second layers

601 and 603 according to an embodiment of the present invention.

According to an embodiment of the present invention, when the first and

second layers

601 and 603 are adhered, it is proposed to be insulated and then adhered to the remaining portions except for the key region. That is, an insulating layer 1801 is formed between the first and

second layers

601 and 603 , and the insulating layer 1801 is insulated from the remaining regions except for the above-described key region 1701 .

19 shows an adhesive structure of the first and

second layers

601 and 603 according to an embodiment of the present invention. When the above-described first and

second layers

601 and 603 are adhered, an adhesive must be applied to the first and

second layers

601 and 603 . A layer formed by the applied adhesive is called an adhesive layer 1900 .

The first and

second layers

601 and 603 according to an embodiment of the present invention are proposed to be adhered by forming air holes. This is because, when the smart mat 110 according to an embodiment of the present invention is rolled up for storage, it is to minimize the phenomenon of the mat crying due to the air remaining between the layers.

In particular, as shown in FIG. 19 , the first and

second layers

601 , 603 are proposed to form an air path 1902 in the longitudinal direction 190-1 of the smart mat 110 . In an embodiment of the present invention, the adhesive layer 1900 may be formed in a state in which air holes are formed in the longitudinal direction 1901-1 at each position of the plurality of row contacts. In this case, the longitudinal direction 1901-1 may mean a relatively longer direction among the horizontal and vertical directions of the smart mat 110 .

Furthermore, the plurality of air paths 1902 according to an embodiment of the present invention may be provided as many as possible to pass through all of the plurality of key areas provided in the smart mat 110 . According to the example shown in FIG. 19 , since the key region constituting the smart mat 110 consists of six rows, six air paths 1902 can be formed. In addition, the six air paths 1902 may be formed to pass through each of the key regions including all six rows in the longitudinal direction 1901-1.

In addition, the adhesive layer 1900 may be adhered in areas other than the above-described key area. In this way, when the adhesive treatment is made for a fairly large area of the smart mat 110, the sound and the crying phenomenon colliding between the films (layers) when the smart mat 110 is rolled can be minimized.

On the other hand, the smart mat 110 according to an embodiment of the present invention proposes a structure that can minimize the dead space that does not recognize the contact with the user's body. This structure will be described with reference to FIGS. 20 and 21 together.

20 is a diagram illustrating a row dead space 2001 for a plurality of row contacts formed on a first layer 601 according to an embodiment of the present invention. 21 is a diagram illustrating a thermal dead space 2002 for a plurality of thermal contacts formed on a second layer 603 in accordance with an embodiment of the present invention.

As described above, the plurality of row and

column contacts

611 and 612 must be connected to the processor 605 through input and output terminals. An electrode line for connection may be formed differently depending on the position of the processor 605 .

20 and 21 are diagrams when the processor 605 is located on the left side of the drawing. The plurality of row and

column contacts

611 and 612 formed in the first and

second layers

601 and 603 will all form electrode lines to be connected to the processor 605 located on the left side.

At this time, not only the left area adjacent to the processor 605 but also the right area should form an electrode line with the left end.

As described above with FIG. 16 , when the entire area of the smart mat 110 is divided into a plurality of areas, electrode lines for each of the divided areas will occupy a significant portion of the area of the smart mat 110 .

As such, when the electrode line is formed to be elongated in the left or right direction, the region through which the electrode line passes will become a dead space in which a user's touch cannot be sensed.

If the area of the dead space is large, the possibility of causing misrecognition will increase.

Accordingly, in one embodiment of the present invention, a structure in which electrode lines can be appropriately distributed is proposed.

Among the plurality of regions partitioned in FIG. 16 , the first to fourth regions 1601-1 to 1601-4 disposed above will be described. The arrangement of the electrode lines in the remaining fifth to eighth regions 1601-5 to 1601-8 may be provided to be symmetrical to the arrangement of the electrode lines in the first to fourth regions 1601-1 to 1601-4. will be able

The first electrode line 2000- for the first row contact 611-1 located at the top of the plurality of row contacts 611 provided in each of the first to fourth regions 1601-1 to 1601-4 1) is formed to pass above the first row contacts 611-1.

The second electrode line 2000-2 for the second row contact 611-2 positioned immediately below the first row contact 611-1 is connected to the first and second row contacts 611-1 and 611-2. ) can be formed to pass between. Similarly, the third electrode line 2000-3 for the third row contact 611-3 positioned immediately below the second row contact 611-2 is connected to the second and third row contacts 611-2 and 611- 3) It may be formed to pass through.

In the illustrated example, it is the case of the first to third contacts 611-1 to 611-3, but even if the number is increased, the electrode lines may be expanded and formed in the same manner.

Referring to FIG. 21 , when divided into an upper region (first to fourth regions 1601-1 to 1601-4) and a lower region (fifth to eighth regions 1601-5 to 1601-8) , the electrode line may be formed in the upper portion 2002-1 of the upper region, in the middle 2002-2 between the upper region and the lower region, and in the lower portion 2002-3 of the lower region.

Although the embodiments of the key input device, the smart mat based on the key input device, and the control method thereof have been described above according to the present invention, they are described as at least one embodiment, thereby providing the technical idea of the present invention and its configuration And the action is not limited, the scope of the technical idea of the present invention is not limited / limited by the drawings or the description with reference to the drawings. In addition, the concepts and embodiments of the present invention presented in the present invention can be used by those of ordinary skill in the art as a basis for modifying or designing other structures in order to perform the same purpose of the present invention. , an equivalent structure modified or changed by a person of ordinary skill in the art to which the present invention belongs is bound by the technical scope of the present invention described in the claims, and does not depart from the spirit or scope of the invention described in the claims. Various changes, substitutions and changes are possible within the limits.

Claims

a first layer in which a plurality of row contacts are formed;

a second layer in which a plurality of column contacts are formed; and

a processor for sensing that at least one of a plurality of key switches formed by the plurality of row contacts and the plurality of column contacts is pressed;

keystroke device.
The method of claim 1,

The plurality of row contacts are configured to include a plurality of row electrode lines connected to each other,

The plurality of column contacts are configured to include a plurality of column electrode lines connected to each other,

keystroke device.
The method of claim 1,

The plurality of row contacts includes a plurality of row contact units connected to each other.

wherein the plurality of column contacts comprises a plurality of column contact units coupled to each other,

keystroke device.
4. The method of claim 3,

the number of the plurality of row contact units is equal to the number of the plurality of column contacts;

the number of the plurality of column contact units is equal to the number of the plurality of row contacts;

keystroke device.
5. The method of claim 4, wherein the row or column contact unit comprises:

A plurality of electrode wire bundles disposed at a first interval and a connection line connecting between the plurality of electrode wire bundles,

The electrode wire bundle includes a plurality of electrode wires disposed at a second interval,

keystroke device.
The method of claim 1,

Forming a plurality of spacer dots (Spacer Dot) on at least one of the first layer or the second layer,

keystroke device.
The method of claim 1,

forming a key region in a region where the plurality of row and column contacts intersect each other;

keystroke device.
8. The method of claim 7,

Further comprising an insulating layer for insulating between the first and second layers,

The insulating layer is formed except for the key region,

keystroke device.
8. The method of claim 7,

an adhesive layer for insulating between the first and second layers;

The adhesive layer is formed except for the key region,

keystroke device.
The method of claim 1, wherein the adhesive layer comprises:

an air path is formed in a predetermined direction of the key input device;

keystroke device.
A smart mat having a key input device according to at least one of claims 1 to 10.