KR101781024B1 - An apparatus and a method for detecting bio-signal and touch status using a cushion, images and sensors - Google Patents

Abstract

An embodiment of the present invention provides an apparatus for detecting a bio-signal and a contact state, capable of measuring the bio-signal even if a user sits down or lies on the apparatus according to the present invention by being installed in a position like a cushion of a chair, and a method for detecting a bio-signal and a contact state thereby. The apparatus for detecting a bio-signal and a contact state using a cushion, an image, and a sensor according to an embodiment of the present invention includes: an input unit which includes a seat which includes one surface to which the motion of the user is acted and has a function to be restored to an initial shape if the motion of the user is released, and an inner spaced which is sealed from the outside; a plurality of markers which are arranged and installed on the one surface of the seat; an image pickup unit which collects a marker image as the photographed image of the marker which is changed by corresponding to the motion of the user; and a sensor unit which is installed on a part of the inner space of the input unit and recognizes vibration transmitted to the inner space of the input unit.

Description

[0001] The present invention relates to a bio-signal and a contact state detecting device using a cushion, an image, and a sensor, and a bio-signal and a contact state detecting method using the same,

The present invention relates to a living body signal and a contact state detecting device using a cushion, an image, a sensor, and a living body signal and a contact state detecting method using the same. More particularly, the present invention relates to a living body signal detecting device, A biological signal and a contact state detecting device capable of measuring a biological signal even if the user is sitting or lying on the device, and a biological signal and a contact state detecting method therefor.

Recently, devices for monitoring the state of the body in real time using various sensors have been developed. In most human body condition monitoring apparatus, a sensor for monitoring the state of a patient is built in a predetermined device, and the device is worn on the patient, or a method of directly contacting or inserting the sensor on a part of the human body is applied.

The heart ballistic measuring device is a device for measuring the cardiac trajectory by measuring the physical reaction force of the blood ejected from the heart when the heart is beating on the skin surface. Since the cardiac trajectory can identify a biomarker that is not present in the electrocardiogram, Has been receiving continuous interest from researchers related to bio-signals. In order to measure heart ballistics, it is necessary to place a piezoelectric element between a part of the body, for example, a body part such as the sole of the foot or hips, and the bottom of the body so as to obtain the electric signal to vibrate the body vertically by the blood flow, By positioning the acceleration sensor, the cardiac trajectory is measured by measuring the reaction of the body by the action of the blood.

Korean Patent Laid-Open No. 10-2015-0146328 (entitled "Biological electrode and apparatus and method for processing biological signal using the same, hereinafter referred to as prior art 1)" includes a plate; A first electrode located on one side of the plate; A second electrode spaced apart from the first electrode; A first guard portion located on the other side of the plate; A second guard portion disposed on the other side so as to be spaced apart from the first guard portion; And a preamplifier for outputting a voltage signal based on the living body signal measured between the first electrode and the second electrode.

The above-mentioned prior art 1 has a first problem in that the apparatus of the prior art 1 is required to be attached to the body to measure a living body signal, thus complicating the wearing process in measurement.

The above-mentioned prior art 1 has a second problem that it can not cope with various vibrations such as user's movements although it has a second electrode for removing external noise.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to an aspect of the present invention, there is provided a seat having a function of restoring an initial shape when a movement of a user acts on one side and a movement of the user is eliminated, An enclosed input; A plurality of markers arranged on one surface of the sheet; An image capturing unit for capturing a marker image as a captured image of the marker that changes in accordance with the motion of the user; And a sensor unit installed on a part of the internal space of the input unit and recognizing vibrations transmitted to the internal space of the input unit, wherein the sensor unit detects a living body signal and a contact state using a cushion, do.

In the embodiment of the present invention, the movement of the user may be performed by contacting a part of the user's body with the outer surface of the seat.

In an exemplary embodiment of the present invention, the processor may further include a processor unit configured to compare the marker image with a signal transmitted from the sensor unit to extract a biometric signal.

In the embodiment of the present invention, the processor unit may recognize variation in the size or shape of the marker image and collect vibration information due to the movement of the user.

In an embodiment of the present invention, the marker may be formed in a circular shape.

In an embodiment of the present invention, the sensor unit may include an air pressure sensor or a vibration sensor.

In an embodiment of the present invention, the sensor unit may further include an acceleration sensor or an acoustic sensor.

In an embodiment of the present invention, the bio-signal may be ballistocardiography of the user.

In an embodiment of the present invention, the imaging unit may be movable so as to approach the largest change among a plurality of the markers.

In an embodiment of the present invention, the input unit may further include a lamp for making a change in the marker image clear.

According to an aspect of the present invention, there is provided an image forming apparatus including: (i) a part of a user's body contacting an outer surface of the sheet; (Ii) the processor unit collecting the first vibration information from the sensor unit; (Iii) the processor recognizes a change in size or shape of the marker image and collects second vibration information due to movement of the user; And (iv) collecting the bio-signals by removing the first vibration information from the second vibration information. The bio-signal and contact state detection method using the cushion, the image, and the sensor do.

In the embodiment of the present invention, in the step (i), a plurality of the markers may form a square array.

In the embodiment of the present invention, the step (iv) may be performed by further removing third vibration information for acceleration or sound from the first vibration information.

In the embodiment of the present invention, the step (iv) may further include the step of comparing the disease data stored in the processor unit with the bio-signal to deliver the disease diagnosis information of the user.

According to an aspect of the present invention, there is provided a method for detecting a contact state of a living body using a cushion, an image, and a sensor, A contact state detection system is provided.

The present invention has a first effect that it is installed at the same position as a cushion of a chair or the like and can measure a living body signal even if the user sits or lies on the apparatus of the present invention, so that there is no hassle such as wearing during measurement.

Further, the present invention has a second effect that it is formed of a soft material and minimizes the sense of heterogeneity upon contact with the body.

Further, the present invention has an acceleration sensor, an acoustic sensor, and the like, and has a third effect that it can cope with various vibrations such as acoustic waves.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a schematic diagram of a change of a marker according to an embodiment of the present invention.
2 is a cross-sectional view of an input unit according to an embodiment of the present invention.
3 is a configuration diagram of a bio-signal detection system according to an embodiment of the present invention.
4 is a graph of a vibration signal according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a change of a marker 12 according to an embodiment of the present invention, and FIG. 2 is a sectional view of an input unit 10 according to an embodiment of the present invention.

FIG. 1 (a) is a schematic diagram of a marker image before a change, and FIG. 2 (b) is a schematic diagram of a marker image after a change.

1 and 2, a biological signal and a contact state detecting device using a cushion, an image, and a sensor according to the present invention have a function of restoring an initial shape when a movement of a user acts on one surface, (10) having an internal space sealed from the outside; A plurality of markers 12 arranged on one surface of the sheet 11; An imaging unit (20) for collecting a marker image as a photographed image of the marker (12) which changes in response to the movement of the user; And a sensor unit 30 installed on a part of the internal space of the input unit 10 and recognizing the vibration transmitted to the internal space of the input unit 10.

The movement of the user can be performed by contacting a part of the user's body with the outer surface of the seat 11. [

The vital sign may be a ballistocardiography of the user.

The motion of the user may mean a vibration caused by an operation of the user, a cardiac trajectory of the user, or a vibration generated from an external environment.

The main object of the present invention is to measure a living body signal by the sensor unit 30, specifically by excluding signals measured by the seat 11 from a plurality of signals measured by the sensor unit 30, It may be to implement ballistic measurements.

The inside of the input unit 10 may be filled with air or an incombustible gas such as argon (Ar) or neon (Ne) may be injected to transmit vibration well. In addition, nitrogen (N ₂ ) gas may be injected into the input section 10.

The input unit 10 can be shaped to have a predetermined shape into which the above-described gas can be injected. Such a shape may not be limited to a specific shape as long as it is possible for the user to place the body part such as the back, the buttocks, the arms, and the legs on the input part 10 and generate the movement of the user.

The image pickup section 20 photographs and collects marker images of the plurality of markers 12 that change in accordance with the movement of the user with respect to the input section 10 and performs a function of converting the photographed marker images into digital images . The imaging unit 20 may include an element such as a CCD, but the present invention is not limited to this example.

The sheet 11 can be made of a stretchable material.

The markers 12 may be printed on the sheet 11. The marker 12 can be attached to the sheet 11 made of a stretchable material and made of a stretchable material.

Therefore, when the movement of the user is performed on the sheet 11, the vibration transmitted to the sheet 11 is transmitted to the marker 12 so that the shape of the marker 12 changes with time, To measure the core ballistics.

The remaining portion of the input unit 10 excluding the sheet 11 may be formed of a stretchable material such as the sheet 11 or may be formed of a material that is not stretchable unlike the sheet 11. [

The biological signal and the contact state detecting apparatus using the cushion, image, and sensor of the present invention include a processor unit 40 that performs a function of comparing a marker image with a signal transmitted from the sensor unit 30 and extracting a biological signal .

The processor unit 40 recognizes a change in the size or shape of the marker image, and collects vibration information due to the movement of the user.

The determination of the movement pattern of the user by the processor unit 40 can be performed by recognizing the change pattern of the size or shape of the image of each of the plurality of markers 12 and can be performed by the sensing of the sensor unit 30 have.

Specifically, when vibration occurs in the sheet 11 according to the movement of the user, the image sensing unit 20 can capture a marker image in millisecond (ms) to obtain a change in the marker image. In order to improve the accuracy, it is of course possible to perform imaging in units smaller than millisecond (ms) units.

Each of the markers 12 can increase or decrease the size of the radius with time and the distance between the markers 12 can also increase and decrease so that the shape of each marker 12 is larger Another circular or elliptical shape, and the arrangement shape of the markers 12 may change.

Further, the shape of the marker 12 can be photographed according to a change in the stretchable sheet 11 or a change in the marker 12, depending on the angle with respect to the horizontal plane or the direction in which the film 12 is tilted.

The contact state of the user can be determined by the change of the marker image as described above, and the vibration due to the user or the external environment can be measured by the periodic change of the marker image.

The processor unit 40 can acquire a signal according to the senst detail that senses all vibrations transmitted to the input unit 10. [

The sensor unit 30 may include an air pressure sensor or a vibration sensor.

The air pressure sensor or the vibration sensor can be sensitive to sensing minute gas vibrations. (The air pressure sensor or the vibration sensor is hereinafter referred to as a first sensor).

The sensor unit 30 may further include an acceleration sensor or an acoustic sensor.

The acceleration sensor can sense a change in the position of the input unit 10 itself, and the acoustic sensor can sense the vibration generated when the vibration due to the sound is transmitted to the input unit 10. (The acceleration sensor or the acoustic sensor is hereinafter referred to as the second sensor).

The first sensor included in the sensor unit 30 may be a sensor sensitive enough to measure the cardiac trajectory of the user.

The second sensor included in the sensor unit 30 may be a sensor that is insensitive to the user's ability to measure the cardiac trajectory.

The vibration of the input unit 10 due to the user's touch may include not only the vibration due to the cardiac trajectory of the user but also the vibration due to the user's action and the vibration due to the external environment such as the sound.

Accordingly, various types of vibration information may be mixed in the signal sensed by the sensor unit 30. Therefore, in order to measure the cardiac trajectory of the user, it may be necessary to select a vibration signal sensed by the sensor unit 30.

To this end, in a specific embodiment, the vibration signal collected by the second sensor, which is less sensitive than the first sensor, is removed from the vibration signal collected by the first sensor, which is sensitive enough to measure the user's cardiac trajectory, , The user's motion and vibration signal collected by the change of the marker image can be removed and the user's heart trajectory can be measured.

Although the first sensor and the second sensor are included in the sensor unit 30 in the embodiment of the present invention, only the first sensor may be included in the sensor unit 30, and a plurality of more sensors may be included in the sensor unit 30 30 to perform sensing of operation, sound, or vibration.

The markers 12 may be formed in a circular shape.

In the embodiment of the present invention, the marker 12 is described as being circular, but it is not limited thereto, and may be formed in various shapes such as an ellipse, a square, and a polygon.

The marker 12 may be a figure formed by a line, as shown in Fig. 1, or a figure filled with a color inside the figure.

The installation pattern of the plurality of markers 12 may have a predetermined number of rows and columns and may take all of various patterns such as the same spacing between rows and rows, columns and columns, or an arrangement of concentric circles.

The imaging unit 20 may be movable so as to approach the largest change among the plurality of markers 12. [

Accordingly, the image sensing unit 20 can be connected to a driving unit (not shown) that moves the image sensing unit 20 to perform the movement.

The detecting device of the present invention can measure not only a plurality of vibration signals but also a contact state.

Specifically, when pressure is applied to the central portion of the sheet 11 in the initial state as shown in FIG. 1 (a), a change in the marker image may occur as shown in FIG. 1 (b) The contact area contact strength with respect to the sheet 11, and the like.

The sheet 11 may have an area sufficiently larger than the area where the user's body part contacts, and the imaging part 20 performs imaging with respect to the face of the sheet 11 to which the user's body part is in contact .

For this purpose, the imaging section 20 can move along the point where it is easiest to photograph.

It is possible to determine a position where the marker 12 closest to the marker 12 can be photographed based on the marker 12 having the largest change among the marker images. Thereafter, a driving unit (not shown) is operated to move to the corresponding position for photographing so that the positional change of the imaging unit 20 can be performed.

The input unit 10 may further include a lamp 50 for making a change in the marker image clear.

At this time, the lamp 50 may be an LED lamp.

If the movement of the user does not occur beyond a predetermined time, it may be automatically turned off.

When the input unit 10 is formed of a transparent or semitransparent material, the imaging unit 20 can capture the change in the shape of the marker 12 in a bright place. However, even if the input unit 10 is formed of a transparent or translucent material, A lamp 50 may be installed inside the input unit 10 to capture a change in the shape of the marker 12 when the user is moving or the input unit 10 is made of a material that is not transparent. The imaging section 20 can clearly recognize the shape change of the marker 12 by the light of the lamp 50. [

Hereinafter, a biosignal using a cushion, an image, a sensor, and a biosignal and a contact state detecting method by the contact state detecting apparatus according to the present invention will be described.

FIG. 3 is a configuration diagram of a bio-signal detection system according to an embodiment of the present invention, and FIG. 4 is a graph of a vibration signal according to an embodiment of the present invention. In Fig. 4, the vertical axis represents amplitude and the horizontal axis represents time.

In the first step, a part of the user's body may contact the outer surface of the seat 11. [

Here, a plurality of the markers 12 can form a square arrangement.

In such a case, the change of the marker image can be generated by a change in the interval between columns or rows of the array formed by the markers 12, or a change in the shape of the array. It goes without saying that the change of the marker image can be generated by a change in size or shape of the marker 12 itself.

In the second stage, the processor unit 40 may collect the first vibration information from the sensor unit 30. [

As described above, the sensor unit 30 may include an air pressure sensor or a vibration sensor as a first sensor, and the first vibration information may be collected by the first sensor.

The first vibration information may include not only the vibration due to the cardiac trajectory of the user but also the vibration caused by the user's action, the vibration due to the external environment such as sound, and the like.

In the third step, the processor unit 40 recognizes the change in the size or shape of the marker image and collects the second vibration information due to the motion of the user.

 The change of the marker image used for the second vibration information may be the same as the change of the marker image.

In the fourth step, the second vibration information may be removed from the first vibration information to collect the bio-signals.

Further, in the first vibration information, the third vibration information for either the acceleration or the sound can be further removed.

As described above, the sensor unit 30 may include an acceleration sensor or an acoustic sensor as a second sensor, and may collect the third vibration information with the second sensor.

The third vibration information may be vibration caused by a change in the position of the input unit 10 itself or vibration information of a user or an external sound.

3, the first vibration information, the second vibration information, and the third vibration information are transmitted to the processor unit 40, and the processor unit 40 receives the second vibration information and the third vibration information from the first vibration information, It is possible to extract a signal about the cardiac trajectory of the user by removing the vibration information.

A signal of the user's cardiac trajectory may be expressed in the form of a graph on the display unit 60.

As shown in FIG. 4, when the graph (b graph) by the second vibration information and the graph (c graph) by the third vibration information are removed in the graph in which the vibration signals are mixed by the first vibration information, A graph of the trajectory (a graph) can be obtained.

After the fourth step, the disease data stored in the processor unit 40 may be compared with the bio-signal, and the diagnosis diagnosis information of the user may be transmitted.

Disease data, which is a waveform of cardiac trajectory for a specific disease, may be stored in the processor unit 40. The processor unit 40 collects the corpuscularity of the user using the vibration information collected by the change of the marker image on the sensor unit 30 and the seat 11, In contrast, when the coronary waveform of the user is similar to the coronary waveform of a person suffering from a specific disease, the content of the type of the coronary disease can be displayed on the display unit 60.

There is provided a living body signal and a contact state detecting system using a cushion, an image, and a sensor, wherein the living body signal and the contact state detecting method using the cushion, image, sensor, .

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: Input unit 11: Sheet
12: marker 20:
30: sensor unit 40: processor unit
50: lamp 60: display part

Claims (15)

A biosignal and contact state detecting device using a cushion, an image, and a sensor,
An input unit including a seat having a function of restoring an initial shape when a movement of a user is applied to a face of the user and a movement of the user is canceled,
A plurality of markers arranged on one surface of the sheet;
An image capturing unit for capturing a marker image as a captured image of the marker that changes in accordance with the motion of the user; And
And a sensor unit installed on a part of the internal space of the input unit and recognizing vibration transmitted to the internal space of the input unit,
Wherein the biomedical signal is a ballistocardiography of a user, wherein the biomedical signal is a ballistocardiogram of a user.
The method according to claim 1,
Wherein the movement of the user is performed by contacting a part of the user's body with the outer surface of the seat.
The method according to claim 1,
Further comprising a processor unit configured to perform a function of comparing the marker image with a signal transmitted from the sensor unit and extracting a biometric signal from the biometric signal.
The method of claim 3,
Wherein the processor unit recognizes a change in the size or shape of the marker image and collects vibration information by the motion of the user.
The method according to claim 1,
Wherein the marker is formed in a circular shape.
The method according to claim 1,
Wherein the sensor unit comprises an air pressure sensor or a vibration sensor.
The method of claim 6,
Wherein the sensor unit further comprises an acceleration sensor or an acoustic sensor.
delete The method according to claim 1,
Wherein the imaging unit is movable so as to approach the largest change among a plurality of the markers, and the biometric signal and the contact state detection apparatus using the sensor.
The method according to claim 1,
Wherein the input unit further comprises a lamp for making a change in the image of the marker clearly visible.
A biosignal and a contact state detecting method using a cushion, an image, and a sensor by the apparatus according to claim 4,
(I) contacting a portion of a user's body with an outer surface of the seat;
(Ii) the processor unit collecting the first vibration information from the sensor unit;
(Iii) the processor recognizes a change in size or shape of the marker image and collects second vibration information due to movement of the user; And
(Iv) collecting the bio-signals by removing the first vibration information from the second vibration information;
And detecting a contact state of the living body signal using the cushion, the image, and the sensor.
The method of claim 11,
A method for detecting a biological signal and a contact state using a cushion, an image, and a sensor, wherein a plurality of the markers form a square array in the step (i).
The method of claim 11,
Wherein the step (iv) is performed by further removing the third vibration information for acceleration or sound from the first vibration information. .
The method of claim 11,
The method according to claim 1, further comprising the step of comparing the disease data stored in the processor unit with the bio-signal after the step (iv), and transmitting the disease diagnosis information of the user. Contact state detection method.
A biological signal and a contact state detection system using a cushion, an image, and a sensor, wherein the method of any one of claims 11 to 14 is performed.

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