KR101839142B1 - Method, apparatus and non-transitory computer-readable recording medium for sensing deformation of flexible structure - Google Patents

Abstract

The present invention relates to an apparatus, a method and a non-transitory computer-readable recording medium for detecting deformation of a flexible structure, and in accordance with one aspect of the present invention, there is provided an apparatus for detecting deformation of a flexible structure, A structure fixing part which is disposed at one end side of the flexible structure and is configured to fix at least a part of the flexible structure, a fixing part which is formed in the inside of the flexible fixing part and inserts at least part of the fixing part of the fixing part into the groove There is provided an apparatus comprising a frame and a sensor portion formed in the groove of the frame and configured to detect a pressure in contact with the structural body fixing portion by a force transmitted to the structure fixing portion when the flexible structure is deformed.

Description

METHOD, APPARATUS AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM FOR SENSING DEFORMATION OF FLEXIBLE STRUCTURE FIELD OF THE INVENTION [0001]

The present invention relates to an apparatus, a method, and a non-transitory computer-readable recording medium for detecting deformation of a flexible structure.

In recent years, as IT technology continues to evolve, human-computer interface (HCI) technology is attracting attention. In this HCI field, it is known to use conductive rubber as a technique for grasping the movement of the body.

Conductive rubber has properties such that the electrical resistance is proportional to the length and inversely proportional to the cross-sectional area like a general resistance body. Accordingly, it is possible to measure changes in the length of the conductive rubber through changes in the current flowing through the conductive rubber, which is advantageous in that the technical complexity is low and the size can be reduced.

However, it is difficult to detect other types of deformation such as bending or twisting due to deformation due to tension or shrinkage, which can be measured by a change in current. Further, in order to grasp the motion of the whole body through the conductive rubber, the conductive rubber should be applied to the whole body.

Thus, there is a limit to the method of detecting the movement of the body by sensing the deformation of the conductive rubber, so that it is required to develop a technique for detecting deformation of the object in a new way and utilizing it.

Korean Registered Patent No. 10-1390708 (Apr. 24, 2014) Korean Registered Patent No. 10-1326238 (October 31, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve all the problems of the prior art described above.

It is another object of the present invention to provide an apparatus, method and non-transitory computer readable recording medium capable of easily grasping various types of deformations such as tensile, shrinkage, twisting, bending, etc. of a flexible structure with a simple structure. It is another object of the present invention to detect various types of deformations of the flexible structure and utilize them to grasp the attitude or operation of the user.

In order to accomplish the above object, a representative structure of the present invention is as follows.

According to one aspect of the present invention, there is provided an apparatus for detecting a deformation of a flexible structure, comprising: a flexible structure having elasticity against deformation; a structure fixing portion disposed at one end side of the flexible structure and configured to fix at least a part of the flexible structure; A frame having a groove formed therein and configured to support at least a part of the structure fixing part by inserting into the groove and formed in the groove of the frame so that when the flexible structure is deformed, There is provided an apparatus including a sensor portion configured to detect a pressure in contact therewith.

According to another aspect of the present invention, there is provided a method for sensing deformation of a flexible structure, comprising: obtaining pressure detection information from the deformation sensing apparatus of a flexible structure; determining a deformation of the flexible structure based on characteristics of the flexible structure; And detecting the deformation of the flexible structure by applying pressure detection information from the pressure detection mode in the flexible structure deformation sensing apparatus according to the present invention, wherein the flexible structure deformation sensing apparatus includes a flexible structure having elasticity against deformation, A structure fixing portion disposed at one end side and configured to fix at least a portion of the flexible structure, a frame formed in the frame and configured to support and insert at least a part of the structure fixing portion in the groove, Flexible structure is deformed The method comprising by the force transmitted to the structure fixing structure and a sensor configured to detect a state in contact with the pressure is provided when.

In addition, there is provided a non-transitory computer-readable recording medium for recording a computer program for carrying out the method and another apparatus, method for implementing the present invention.

According to the present invention, since the pressure is detected in a specific form by the sensor unit according to the deformation of the flexible structure, various types of deformation such as tensile, shrinkage, twisting, bending, etc. of the flexible structure can be easily grasped by utilizing the pressure.

In addition, it is possible to grasp deformation of various types of flexible structures with a simple structure, and thus it is possible to accurately grasp the attitude or operation of a user using the flexible structure.

Further, since the flexible structure can be formed into various materials and various shapes, it can be utilized in various fields.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing the internal and external configurations of a device for sensing deformation of a flexible structure according to an embodiment of the present invention; Fig.
FIG. 2 is a view showing a form in which a flexible structure is stretched or contracted in an apparatus for sensing deformation of a flexible structure according to an embodiment of the present invention.
FIG. 3 is a view illustrating an apparatus for detecting deformation of a flexible structure according to an embodiment of the present invention, in which one end of a frame is fixed while being stretched or contracted.
FIG. 4 is a view showing a form in which a flexible structure curves in an apparatus for sensing deformation of a flexible structure according to an embodiment of the present invention.
FIG. 5 is a view illustrating an apparatus for detecting deformation of a flexible structure according to an embodiment of the present invention, in which one end of a frame is bent while being fixed.
6 is a view showing a flexible structure twisted in an apparatus for sensing deformation of a flexible structure according to an embodiment of the present invention.
FIG. 7 is a view showing a configuration in which a flexible structure rotates horizontally in an apparatus for detecting deformation of a flexible structure according to an embodiment of the present invention.
FIG. 8 is a view showing a form in which an external force is applied to the center of a flexible structure while moving the frame so as to be spaced apart in a vertical direction in an apparatus for detecting deformation of the flexible structure according to an embodiment of the present invention.
FIGS. 9 to 11 are views showing various modifications of apparatuses for sensing deformation of a flexible structure according to an embodiment of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, the specific shapes, structures, and characteristics described herein may be implemented by changing from one embodiment to another without departing from the spirit and scope of the invention. It should also be understood that the location or arrangement of individual components within each embodiment may be varied without departing from the spirit and scope of the present invention. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of the present invention should be construed as encompassing the scope of the appended claims and all equivalents thereof. In the drawings, like reference numbers designate the same or similar components throughout the several views.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

flexible  Structure of a device for detecting deformation of a structure

FIG. 1 is a view showing a device for detecting deformation of a flexible structure according to an embodiment of the present invention (hereinafter referred to as a deformation sensing device). More specifically, FIG. 1 (a) is a view schematically showing an internal structure of a deformation sensing apparatus according to an embodiment of the present invention, and FIG. 1 (b) 1 (c) is a view schematically showing an outer shape of a deformation sensing apparatus according to an embodiment of the present invention.

1 (a), a deformation sensing apparatus 100 according to an embodiment of the present invention includes a flexible structure 110, a structure fixing unit 120, a sensor unit 130, and a frame 140, . ≪ / RTI > 1, the x axis, the y axis, and the z axis indicate the width direction of the flexible structure 110, the longitudinal direction of the flexible structure 110, and the vertical direction of the flexible structure 110, respectively, in the coordinate axes shown in FIG. The criteria for such coordinate axes apply equally throughout this specification.

The flexible structure 110 according to this embodiment is a thin band formed of a material having elasticity and is a structure capable of deforming such as shrinkage, tensile, curvature, and twisting according to the direction of a force externally applied. The flexible structure 110 has an inherent elastic modulus such as tensile, curvature, and twist depending on its material and shape. The deformation sensing apparatus 100 utilizes the inherent characteristics of the flexible structure 110 to sense the deformation .

One end of the flexible structure 110 can be fixed by the structure fixing part 120. [ A groove may be formed in the frame 140 to support the structure fixing part 120 and a sensor part 130 may be formed on the inner surface of the groove to which the fixing part 120 is inserted.

The structure fixing unit 120 according to the present embodiment can fix the flexible structure 110 with one end thereof as shown in FIG. 1 (a). With this structure, when the flexible structure 110 is deformed, for example, tensile, shrinking, bending, twisting, or the like, the structure fixing portion 120 receives a force in a specific direction depending on the shape of the deforming. The structure fixing unit 120 is brought into contact with the sensor unit 130 by this force and the sensor unit 130 contacts with the structure fixing unit 120 at a point of contact with the contact area, And the like.

The sensor unit 130 according to the present embodiment may include a plurality of pressure sensors for detecting a pressure applied when the structure unit 130 contacts the structure fixing unit 120. 1B, the sensor unit 130 includes a first sensor 131b disposed in the longitudinal direction (i.e., the y-axis direction) of the flexible structure 110 in the groove of the frame 140, 131t and second sensors 132b and 132t and third sensors 133b and 133t arranged in the vertical direction (that is, z-axis direction) with respect to the flexible structure 110, Each of which may be constituted by a pressure sensing sensor.

With this structure, when the structural body fixing portion 120 receives a force in accordance with the deformation of the flexible structural body 110, the sensor portion 130 detects a change in a point, an area, And it becomes possible to recognize the deformed shape of the flexible structure 110 and the degree of the deformation from the detected information and the characteristic (for example, elastic modulus) inherent to the flexible structure 110. [

The plurality of pressure sensing sensors of the sensor unit 130 are arranged in the longitudinal direction (i.e., the y-axis direction) and the vertical direction (i.e., the z-axis direction) of the flexible structure 110 with respect to the structural body fixing unit 120 However, it is also possible to further include a pressure sensing sensor in the width direction (i.e., the x-axis direction) of the flexible structure 110. In addition, the number of pressure sensing sensors may be varied or may be varied can do.

Referring to FIG. 1 (c), the deformation sensing apparatus 100 according to an embodiment of the present invention may be configured such that its internal structure is shielded by a frame 140 when viewed from the outside. However, the present invention is not limited thereto, and it is also possible that the frame is formed in a form in which at least one side is opened (for example, in the form of (a) in Fig. 1). And, although not shown, the other end of the flexible structure 110 may also be inserted into the frame, fixed, or otherwise fixed in a known manner.

flexible  A method for detecting deformation of a structure

As described above, the flexible structure of the deformation sensing apparatus has a specific elastic modulus depending on the material and the shape thereof. Depending on the shape of the flexible structure to be deformed and the degree of deformation of the flexible structure, The shape is determined. As a result, by grasping in advance the relationship between the deformation of the flexible structure and the pressure detection pattern in accordance with the inherent characteristics of the flexible fixture, the shape and degree of deformation can be grasped through the pressure sensed by the sensor portion when there is deformation of the flexible structure .

Hereinafter, a method of detecting the deformation when the flexible structure is deformed into various shapes using the deformation sensing apparatus will be described.

2 is a view showing a state in which a flexible structure is stretched or contracted in a deformation sensing apparatus according to an embodiment of the present invention. 2 (a) shows a case where the flexible structure is stretched along the longitudinal direction (y-axis direction) of the flexible structure while both ends of the flexible structure are connected to the frame, and Fig. 2 (b) Respectively.

When the flexible structure is pulled as shown in FIG. 2A, the pressure can be detected while the structure fixing portion 120 in FIG. 1 touches the second sensors 132b and 132t. 2 (b), the pressure applied to the second sensors 132b and 132t by the structure fixing unit 120 is reduced when the flexible structure contracts (that is, restored in a tensile state) , And a predetermined pressure may be detected while contacting the first sensors 131b and 131t according to the shrinkage (restoration) speed.

In this way, when the flexible structure is stretched or shrunk (restored), a pressure change can be detected in a sensor disposed in the longitudinal direction of the flexible structure in the sensor portion, and the length of the flexible structure can be grasped. In addition, tensile speed or shrinkage (restoration) speed of the flexible structure can be grasped by detecting a change in pressure with time.

3 is a view showing a form in which a flexible structure is stretched or contracted while fixing a frame on one side in a deformation sensing apparatus according to an embodiment of the present invention. 3 (a) and 3 (b) show a case where the flexible structure is stretched and contracted along the longitudinal direction (y-axis direction) while fixing the left frame among the frames to which the flexible structure is connected, (c) and (d) show a case where the flexible structure is stretched and contracted along the longitudinal direction (y-axis direction) while fixing the right frame among the frames to which the flexible structure is connected.

Even when both ends of the flexible structure are connected to the frame and one of the frames is fixedly installed, as shown in FIGS. 3A to 3D, the flexible structure is stretched or shrunk, The pressure can be detected in the sensors arranged in the longitudinal direction of the structure (the first sensor and the second sensor), and the length of the flexible structure stretched or shrunk through changes in the detected pressure and pressure, So that the speed can be grasped.

FIG. 4 is a view showing a curved shape of a flexible structure in a deformation sensing apparatus according to an embodiment of the present invention. More specifically, FIGS. 4A and 4B show a case in which the flexible structure having a high elastic modulus with respect to the bending (curvature) is bent at both sides, and FIGS. 4C and 4D are cross- Shows a case where the flexible structure having a relatively low elastic modulus with respect to bending (curvature) is bent at both sides.

As shown in FIGS. 4A and 4B, if the flexible structure formed of a material (for example, rubber) having a high elastic modulus against bending is bent upward or downward from both sides, The pressure can be detected while the sensor 120 contacts the second sensors 132b and 132t. On the other hand, if the flexible structure formed of a material having a low elastic modulus against bending is bent upward or downward from both sides as shown in FIGS. 4C and 4D, 132b, 132t as well as the third sensors 133b, 133t, so that the pressure in these sensors can be detected.

As described above, when the flexible structure is curved upward or downward from both sides, it is possible to detect the pressure change in the sensor portion, thereby enabling the flexible structure to recognize the curved shape and the degree of the curvature. Further, by detecting the change of the detected pressure and pressure with time, it is possible to grasp the speed at which the flexible structure is bent and deformed.

5 is a view showing a state in which one side of a frame is fixed and a flexible structure is curved while being stretched in a deformation sensing apparatus according to an embodiment of the present invention. 5 (a) and 5 (b) show a case where the flexible structure is curved upwardly and downwardly while simultaneously stretching the flexible structure to the right while fixing the left frame among the frames to which the flexible structure is connected. Figs. 5 (d) shows a case of flexing the flexible structure upward and downward while pulling the flexible structure to the left while fixing the right frame among the frames to which the flexible structure is connected.

5A, when the flexible structure is curved upwardly while being pulled to the right, in the fixed left frame, the structure fixing portion 120 is in contact with the second sensors 132b and 132t, In the right frame, which is not detected and fixed, the structure fixing portion 120 contacts the second sensors 132b and 132t and the third sensors 133b and 133t, and pressure can be detected in these sensor portions. 5 (b) to 5 (d), in a fixed frame, in the frame in which the structure fixing portion 120 is in contact with the second sensors 132b and 132t and pressure is not detected, The pressure sensor 120 can detect the pressure in these sensor portions while contacting the second sensors 132b and 132t and the third sensors 133b and 133t.

In this way, when the frame connected to one end of the flexible structure is fixed and tension and curvature are simultaneously generated, the pressure detected by each of the sensor portions can be analyzed to determine the shape and degree of tension and curvature. It is also possible to grasp the velocity at which the flexible structure is flexed and deformed by detecting a change in pressure and pressure detected over time.

6 (a) and 6 (b) illustrate a structure in which a flexible structure is twisted in a deformation sensing apparatus according to an embodiment of the present invention. Specifically, In the longitudinal direction (y-axis direction) of the flexible structure.

In this way, when the flexible structure is twisted, the pressure can be detected while the structure fixing portion 120 in the frame contacts with the third sensors 133b and 133t arranged in the vertical direction (z-axis direction). At this time, depending on the direction in which the flexible structure twists, the point where the structure fixing portion contacts the sensor portion and the pressure is detected may vary.

In the case of FIG. 6 (a), when the left frame and the right frame are viewed from the left and right sides, respectively, the flexible structure is twisted in a counterclockwise direction. In this case, in the left frame, The pressure can be detected at the left side point of the sensor 133b and the right side point of the upper third sensor 133t. In the right side frame, the right side point of the lower third sensor 133b, The pressure can be detected at the left-hand side point of the right-hand side portion 133t. In contrast, in the case of FIG. 6 (b), when the left frame and the right frame are viewed from the left and right sides, respectively, the flexible structure is rotated in the clockwise direction. In this case, The pressure can be detected at the right side point of the third sensor 133b and the left side point of the upper third sensor 133t and the left side point of the lower third sensor 133b when viewed from the right side in the right frame, The pressure can be detected at the right point of the three sensor 133t. Here, if the degree to which the flexible structure twists is large, the magnitude of the detected pressure becomes large.

As described above, since the size and the magnitude of the point at which the pressure is detected in the sensor unit depend on the direction and degree of the twist, the direction and degree of twisting of the flexible structure can be grasped by utilizing this. Further, by detecting the change of the detected pressure and pressure with time, it is possible to grasp the speed at which the flexible structure is twisted.

On the other hand, when the flexible rigid body is twisted and simultaneously tensioned on both sides, since the pressure is also detected in the second sensors 132b and 132t in addition to the third sensors 133b and 133t in the left and right frames, The shape and degree of tension, and the rate of strain.

FIG. 7 is a view showing a state in which the flexible structure rotates about the horizontal rotation, that is, about the z-axis in the deformation sensing apparatus according to the embodiment of the present invention. 7 (a) shows a case in which the left frame is rotated in the counterclockwise direction and the right frame is rotated in the clockwise direction, and FIG. 7 (b) , And the right frame is rotated in the counterclockwise direction. 7 (c) shows a case where both the left frame and the right frame are rotated clockwise, and Fig. 7 (d) shows a case where both the left frame and the right frame are rotated counterclockwise.

7 (a), when the left and right frames are rotated in the counterclockwise and clockwise directions, respectively, as viewed from above, in the left frame, when the structural body fixing portion 120 is viewed from the left, The pressure can be detected while touching the left side of the sensors 131b and 131t and the right side of the second sensors 132b and 132t and in the right side frame when the structure fixing unit 120 is viewed from the right side, , 131t and the left side of the second sensor 132b, 132t. On the other hand, in the case of FIG. 7B, in the left frame, when the structural body fixing portion 120 is viewed from the left, the right side of the first sensors 131b and 131t and the left side of the second sensors 132b and 132t And in the right frame, when the structure fixing portion 120 is viewed from the right side, the pressure is detected while the left side of the first sensors 131b and 131t and the right side of the second sensors 132b and 132t are in contact with each other, Can be detected.

7C, in the left frame, when the structure fixing portion 120 is viewed from the left side, the right side of the first sensors 131b and 131t and the left side of the second sensors 132b and 132t And in the right frame, when the structural body fixing portion 120 is viewed from the right side, the pressure is applied to the right side of the first sensors 131b and 131t and the left side of the second sensors 132b and 132t, 7 (d), in the left frame, when the structure fixing unit 120 is viewed from the left side, the left side of the first sensors 131b and 131t and the left side of the second sensors 132b and 132t The right side of the first sensor 131b or 131t and the right side of the second sensor 132b or 132t when the structural body fixing unit 120 is viewed from the right side in the right frame, The pressure can be detected.

Here, if the degree of the horizontal movement of the flexible structure is large, the magnitude of the detected pressure becomes large.

As described above, since the magnitude of the pressure is detected and the magnitude of the pressure is detected in the sensor unit according to the horizontal rotation direction and the degree of the horizontal rotation of the flexible structure, the direction and extent of the horizontal rotation of the flexible structure can be grasped. Further, by detecting the change of the detected pressure and pressure with time, the speed at which the flexible structure rotates horizontally can be grasped.

8 is a view showing a form in which an external force is applied to a center of a flexible structure while moving so that frames on both sides connected to the flexible structure in the deformation sensing apparatus according to the embodiment of the present invention are spaced apart in the vertical direction, to be. 8 (a) shows a case in which an external force is applied so that the left frame and the right frame are directed toward the center of the flexible structure in a state in which the left frame moves relatively upward 8B shows a case in which an external force is applied so that the left frame and the right frame face the center of the flexible structure in a state in which the right frame moves relatively upward.

8A, when the left frame and the right frame are respectively rotated clockwise when viewed from the side, the structure fixing unit 120 moves in the left frame from the first sensor 131b, The pressure can be detected while touching the third sensor 133t and the pressure is detected while the structural body fixing unit 120 touches the first sensor 131b and 131t and the upper third sensor 133t in the right frame . On the other hand, in the case of FIG. 8 (b), as the left frame and the right frame are rotated counterclockwise when viewed from the side, the structure fixing part 120 is moved in the left frame to the first sensor 131b And 131t and the upper third sensor 133t and the structure fixing portion 120 is fixed to the first sensor 131b and 131t and the lower third sensor 133t in the right frame The pressure can be detected.

In this way, even when the flexible structure receives a rotational force in a state in which the flexible structure is moved in the vertical direction, the size and the position of the pressure portion are different depending on the shape and degree of deformation, And so on. Further, by detecting the change of the detected pressure and pressure with time, the speed at which the flexible structure deforms can be grasped.

As described above, when the flexible structure is deformed into various forms, the shape of the flexible structure is deformed through the shape of the pressure detected by the sensor unit, that is, the point at which the pressure is detected, (For example, tensile, shrinkage, curvature, and twist) and their degree (e.g., tensile, shrinkage, curvature, and torsion magnitude and velocity). When the deformation sensing device including such a flexible structure is worn on the body, the posture and operation of the user can be detected by grasping the deformation shape, the deformation degree, and the deformation speed of the flexible structure. In addition, A deformation sensing device may be utilized.

On the other hand, when a large number of deformations are made to the flexible structure over a long period of time, characteristics such as the elastic modulus of the flexible structure may change. Since the magnitude of the pressure detected by the deformation of the flexible structure changes depending on the elastic modulus and the like of the flexible structure, it is preferable to replace the pressure when the characteristic of the flexible structure is detected. As a method for determining the necessity of replacement of such a flexible structure, a pin contact method, a noncontact method such as NFC and RFID, or a magnetic force method can be used.

flexible  Of a device for detecting deformation of a structure Variation example

The apparatus for detecting deformation of the flexible structure according to an embodiment of the present invention (deformation sensing apparatus) can be modified in various ways.

9 to 11 are views showing various modifications of the deformation sensing apparatuses according to an embodiment of the present invention. Modification examples of the deformation sensing apparatus will be described with reference to FIGS.

Referring to FIG. 9, a strain sensing apparatus 200 according to a modification may include a flexible structure 210 in the form of a string or a line, and a frame 240 to which the flexible structure 210 is connected, Or the like. As in the embodiment of the present invention, the frame 240 may be provided with a structure fixing unit for fixing the flexible or flexible structure 210 in the form of a string or a line, and a sensor unit capable of detecting pressure in contact with the fixing unit The shape and degree of deformation of the flexible structure 210 in the form of a thread or a string and the deformation speed can be determined according to the type of pressure detected by the sensor unit.

10, the deformation sensing apparatus 300 according to another modification may include a plurality of flexible structures 310 in the form of a string or a line, and these flexible structures 310 may be formed in one frame 340, respectively. The frame 340 may include a structure fixing unit for fixing the plurality of flexible structures 310 and a sensor unit capable of detecting the pressure in contact with the structure fixing unit. And the degree to which the flexible structure 310 is deformed can be grasped. At this time, the plurality of flexible structures 310 may be fixed by one structure fixing portion, or may be fixed by separately formed structure fixing portions. The shape of the pressure due to the deformation of the flexible structure 310 can be changed according to the case where the structure fixing part is formed as one unit or a plurality of units are formed. Know the relationship in advance.

According to the present modification, the point at which the pressure is detected at the sensor unit through the fixing unit of the structural body changes according to the deformation of each of the plurality of flexible structures 310, and even when a plurality of inputs are inputted at the same time, , The deformation of each of the plurality of flexible structures 310 can be individually detected. For example, when a string in a string instrument such as a guitar, a violin, or a gayageum is deformed by a user operation, it is possible to specify the string to be deformed, as well as the type and degree of deformation of each string have. The structure of the flexible structure or the like according to the present modification example can be implemented in various forms such as a glove in which a string is connected to a finger in addition to a stringed instrument.

11, the deformation sensing apparatus 400 according to still another modification is similar to the deformation sensing apparatus 100 of the embodiment of the present invention in that the strip-shaped flexible structure 410 is connected to the frame 440, There is a difference in that a surface pressure sensing sensor 450 capable of sensing an external pressure applied to the external surface of the frame 440 by a touch or the like is further provided.

The surface pressure sensing sensor 450 can detect whether or not the user or the external object is in contact with the frame 440. In order to grasp the deformation of the flexible structure 410 through the sensor portion disposed in the frame 440, It is possible to grasp a more accurate form of deformation. For example, when the flexible structure is stretched or shrunk as shown in FIGS. 2 to 3, it is determined whether the actual frame is in contact with a user or an external object through a surface pressure sensing sensor 450 provided outside the frame 440, It is possible to provide information on whether or not the flexible structure is applied. If the user is trying to grasp the movement of the body by, for example, worn on the user's body, the user's posture or movement can be grasped more accurately.

The embodiments of the present invention described above can be implemented in the form of program instructions that can be executed through various computer components and recorded in a non-transitory computer readable recording medium. The non-transitory computer readable medium may include program instructions, data files, data structures, etc., either alone or in combination. The program instructions recorded on the non-transitory computer-readable recording medium may be those specially designed and constructed for the present invention or may be those known to those skilled in the computer software arts. Examples of non-transitory computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs, DVDs, magneto-optical media such as floppy disks magneto-optical media), and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules for performing the processing according to the present invention, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Therefore, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the following claims, I will say.

100, 200, 300, 400: strain sensor
110, 210, 310, 410: Flexible structure
120:
130:
140, 240, 340, 440: frame
450: Surface pressure sensor

Claims (12)

An apparatus for sensing deformation of a flexible structure,
A flexible structure having elasticity against deformation,
A structure fixing portion disposed at one end side of the flexible structure and configured to fix at least a part of the flexible structure,
A frame having a groove formed therein and configured to insert and support at least a part of the structure fixing portion into the groove and
And a sensor unit configured to detect a pressure in contact with the structure fixing unit by a force transmitted to the structure fixing unit when the flexible structure is deformed,
Lt; / RTI >
And detects a deformation of the flexible structure according to a point at which the pressure is detected by the sensor unit and a magnitude of the detected pressure. The method according to claim 1,
Wherein the sensor unit is formed on the inner surface of the groove of the frame,
The sensor unit includes a longitudinal direction sensor disposed in the longitudinal direction of the flexible structure and capable of detecting a pressure when a force is applied to the structure fixing unit along the longitudinal direction of the flexible structure, And a vertical sensor capable of detecting a pressure when a force is transmitted along the vertical direction of the flexible structure to the structure fixing portion. 3. The method of claim 2,
The sensor unit may further include a width direction sensor disposed in the width direction perpendicular to the longitudinal direction and the vertical direction of the flexible structure and capable of detecting a pressure when a force is transmitted along the width direction of the flexible structure to the structure fixing portion Comprising: The method according to claim 1,
And a surface pressure detecting sensor provided on a surface of the frame and capable of sensing whether or not to contact an external object and a pressure to be applied upon contact. The method according to claim 1,
Wherein the frame is configured to shield the structural fixture and the sensor portion from the external environment. The method according to claim 1,
Wherein the structure fixing portion, the frame, and the sensor portion are provided on both end sides of the flexible structure, respectively. The method according to claim 1,
Wherein the flexible structure is formed in a strip shape. The method according to claim 1,
Wherein the flexible structure is formed in the form of a thread or a strip. 9. The method of claim 8,
And a plurality of said flexible structures in the form of a string or a string. A method for sensing deformation of a flexible structure,
Obtaining pressure detection information from the flexible structure deformation sensing apparatus;
And a step of grasping the deformation of the flexible structure by applying the pressure detection information from the pressure detection form in the flexible structure deformation sensing apparatus according to the deformation of the flexible structure, which is grasped in advance based on the characteristics of the flexible structure and,
The flexible structure deformation sensing apparatus includes:
A flexible structure having elasticity against deformation,
A structure fixing portion disposed at one end side of the flexible structure and configured to fix at least a part of the flexible structure,
A frame having a groove formed therein and configured to insert and support at least a part of the structure fixing portion into the groove and
And a sensor unit configured to detect a pressure in contact with the structure fixing unit by a force transmitted to the structure fixing unit when the flexible structure is deformed,
/ RTI >
Wherein the pressure detection information includes a point at which a pressure is detected in the sensor section and a magnitude of a pressure to be detected 11. The method of claim 10,
In the step of grasping the deformation of the flexible structure,
Wherein a shape and a degree of deformation of the flexible structure are grasped through a point at which the flexible structure deformation sensing apparatus touches the sensor attachment structure fixing portion, a magnitude of an applied pressure, or a pressure. 12. A non-transitory computer readable recording medium having recorded thereon a computer program for carrying out the method according to claim 10 or claim 11.

Images