KR20130137327A - Apparatus for detect to vital signal from chair - Google Patents

Abstract

The present invention relates to an apparatus for acquiring bio information by using a chair. The purpose of the present invention is to acquire continuously the bio information by installing bio signal sensor at an armrest, a back and a seat of the chair mainly used in daily life or an office for acquiring the bio information and making compensations possible in spite of an error such as a contact degradation at a place, to calculate parameters for determining a health state, a stress state or an emotion state of a user, and to analyze a sitting posture state by distributing a plurality of pressure sensors to the back and the seat of the chair and acquiring data measured via each of the pressure sensors. The present invention comprises: an armrest bio signal measurement part for measuring the electrocardiogram (ECG), the GSR and the PPG from the arm or the palm of the user in contact with the armrest; a back ECG sensor installed on the back of the chair for measuring the ECG signal from the back of the user in contact with the back of the chair; a seat ECG sensor installed on the seat of the chair for measuring the ECG signal from the hips of the user in contact with the seat of the chair; and a bio information processor for receiving the bio signal measured from the armrest bio signal measurement part, the back ECG sensor and the seat ECG sensor and transmitting processed bio information or raw bio signal data to a personal computer or a smartphone. [Reference numerals] (110) Armrest bio signal measurement part;(111) Left and right ECG sensors;(112) GSR sensor;(113) PPG sensor;(114) Left and right CDS sensors;(121) Back ECG sensor;(122) Back pressure sensor;(131) Seat ECG sensor;(132) Sear pressure sensor;(210) Posture data calculator;(220) Micro controller

Description

Apparatus for Detect to Vital Signal from Chair}

The present invention relates to an apparatus for obtaining biometric information of a chair user in an unrestrained state. The apparatus is provided with a biometric information obtaining apparatus for a chair used in work or daily life, and the user's health, stress, and emotion are determined from the acquired biosignal. The present invention relates to an apparatus for obtaining biometric information using a chair to obtain a parameter for determining a user's sitting position.

Recently, due to the rapid development of electronic technology and information and communication technology, it provides convenience to people in various fields. In particular, as it is utilized in the field of medical devices and systems, the field of Ubiquitous Healthcare, which is very useful for human health management, is rapidly developing.

In other words, by using a biometric information sensor and advanced wireless communication or medical devices, the health care services such as remotely check the user's health status, stress and health status, and notify of the emergency situation are being performed in the home network environment.

As a health management system using conventional biometric information acquisition, a technology for diagnosing a health condition by acquiring biometric information from a chair mainly used in daily life is disclosed in Korea Patent No. 10-0949309 (Health monitoring system using mobile computer and Method).

FIG. 1 is a schematic explanatory diagram of a health monitoring system using a mobile computer according to the related art, and includes a mobile computer unit 10, a chair unit 20, and a portable device unit 30.

The mobile computer unit 10 includes electrodes for detecting electrocardiogram, skin conductivity, skin temperature, and obesity, and the chair unit 20 and the portable device unit 30 as well as the bio signals detected by the electrodes. The radio received bio signals are collectively analyzed.

Meanwhile, the chair unit 20 includes a plurality of biometric devices including a posture measurement sensor, and transmits the measured bio signals to the mobile computer unit 10.

The portable device unit 30 is configured to continuously monitor a plurality of biosignals including optical volume pulse wave (PPG) and transmit the monitored biosignals to the mobile computer unit 10.

The health monitoring system using a mobile computer according to the prior art made as described above can easily measure and correct posture in daily life, and can easily check the health state by measuring oxygen saturation, blood flow, and volumetric wave through a simple portable device. In addition, by measuring the various biological signals through the electrodes mounted on the computer and the chair there is an effect that can easily check the health status in the workplace.

However, such a prior art can measure the biosignal only through the biosignal measuring unit and the finger probe installed in the handle portion of the chair. That is, in order to measure the bio-signals, the test subject must be in contact with the bio-signal measuring sensor installed in the handle portion of the chair, and the measurement must be performed in a fixed posture by inserting a finger into the Figurer probe. There is a problem that cannot be measured.

In addition, an error occurs due to a lead failure from the biosignal measuring sensor installed in the handle part of the examinee chair, and thus, the measurement time is long because it is necessary to measure again from the beginning to measure the accurate biosignal.

Therefore, the present invention provides a biosignal sensor on the armrest, the back plate, the seat plate for acquiring biometric information in a chair that is mainly used in a user's daily life or work in order to improve the problems of the prior art, poor contact anywhere It is an object of the present invention to provide a biometric information acquisition apparatus using a chair that is capable of compensating even if an error such as an error occurs, thereby enabling continuous biometric information acquisition.

Another object of the present invention is to analyze the obtained bio-signal to calculate a parameter for determining the user's health state, stress state or emotional state and transmit it to the user's personal computer using wireless communication.

Yet another object of the present invention is to distribute a plurality of pressure sensors on the back and seat of the chair as well as the biometric information of the user sitting on the chair, so as to obtain the data measured through each pressure sensor, the user's sitting posture state analysis To do that.

Biological information acquisition apparatus using a chair for achieving the object of the present invention in the biometric information acquisition apparatus using a chair for obtaining a user's biosignal from each of the biosignal acquisition sensor and pressure sensor installed on the armrest, back plate, seat of the chair Armrest biosignal measuring unit for measuring the electrocardiogram (ECG), skin electrical resistance (GSR), optical volume pulse wave (PPG) from the arm or palm of the user in contact with the armrest of the chair; A back electrocardiogram sensor unit installed on the back of the chair to measure an electrocardiogram signal from the back of the user in contact; A seat plate electrocardiogram sensor unit installed on the seat plate of the chair to measure an electrocardiogram signal from the hip of the user in contact; And a biometric information processing unit configured to transmit biometric information or biosignal raw data calculated by receiving the biosignal measured from the armrest biosignal measurement unit, the back plate, and the seat ECG sensor unit to a personal computer or a smartphone. It is characterized by.

Here, the biometric information processing unit armrest ECG amplification unit for amplifying the ECG signal measured by the biometric information measuring unit of the chair armrest; A GSR amplifier for amplifying the skin electrical resistance signal measured by the biometric information measuring part of the armrest; A PPG amplifier for amplifying the optical volume pulse wave signal measured by the biometric information measuring part of the armrest; A back ECG amplifier for amplifying the ECG signal measured by the back ECG sensor; A seat ECG amplifier for amplifying the ECG signal measured by the seat ECG sensor; And a microcontroller configured to receive the amplified electrocardiogram, skin electrical resistance and optical volume pulse wave from each amplifying unit to determine a user's blood pressure, heart rate (HR), stress state, and emotional state. And a wireless communication unit for wirelessly outputting blood pressure, heart rate per minute, stress state, and emotional state data calculated by the microcontroller to the smart phone or a personal computer.

In addition, a plurality of pressure sensors (FSR) are installed at a predetermined interval to analyze the sitting posture of the user sitting on the back plate, the back of the chair; And a posture calculation unit configured to calculate posture data of the user from the distribution values of the pressure intensities measured by the pressure sensors FSR and output the posture data to the biometric information processing unit.

Biological information acquisition apparatus using a chair according to the present invention is to install a bio-signal sensor on the armrest, back plate, seat of the chair, even if any of the errors such as contact failure can be compensated for the continuous biometric information can be obtained It has an effect.

Analyze the bio-signal acquired from the user sitting on the chair in real time, calculate the parameters to determine the user's health state, stress state or emotional state, and transmit them to the user's personal computer using wireless communication. It is effective to check immediately and respond.

Another object of the present invention is to distribute a plurality of pressure sensors on the back plate, the back plate of the chair as well as the biometric information of the user sitting on the chair, so as to obtain data measured through each pressure sensor, the user's sitting posture state in real time It is effective to correct posture by analyzing and displaying on personal computer.

1 is a schematic illustration of a health monitoring system using a mobile computer according to the prior art,
2 is a block diagram of a chair equipped with a biometric information acquisition device according to an embodiment of the present invention,
3 is a block diagram of a chair equipped with a pressure sensor unit according to an embodiment of the present invention,
4 is a block diagram of an apparatus for obtaining biometric information using a chair according to an embodiment of the present invention.

Referring to the configuration and operation of the biometric information acquisition apparatus using a chair according to an embodiment of the present invention in detail with reference to the accompanying drawings as follows.

2 is a block diagram of a device for obtaining biometric information using a chair according to an embodiment of the present invention, wherein the armrests 101a and 101b of the chair 100 measure an ECG signal from an arm or a palm of a user. (111a, b, c), GSR sensor 112 for measuring skin electrical resistance (GSR), PPG sensor (113) for measuring optical volume pulse wave (PPG), exposed to the upper armrest, the user's arm or palm The armrest biosignal measuring unit 110 is configured to include a light detecting sensor (114a) (114b) for detecting the contact.

Each sensor is divided into left and right armrests 101a and 101b, respectively, preferably, an ECG positive, ground, PPG sensor 113 of the ECG sensor is an upper portion of the left armrest 101a. It is provided in the front, the cathode (ECG Nositive), the ground (Ground), the GSR sensor 112 of the ECG sensor, the right armrest 101b is provided in the upper portion, the front portion.

The back plate 102 of the chair 100 is provided with a back ECG sensor unit 121 for measuring the ECG signal from the back of the contacted user, the seat plate 103 of the chair to the ECG signal from the hip area of the user The seat plate ECG sensor unit 131 to measure is provided.

Each of the back and seat ECG sensor parts 121 and 131 is a capacitive ECG sensor (capacitive ECG) capable of measuring the ECG signal while the user is dressed by using the fabric electrode, the positive electrode, the negative electrode, and the ground terminal (cECG Positive). , cECG negative and Ground) are provided respectively.

3 is a pressure sensor distribution diagram mounted to a chair equipped with a biometric information acquisition device according to an embodiment of the present invention. Each pressure sensor 121, 131 is a back plate and a seat plate 102 (103) of the chair as shown in FIG. ) 5 pieces are distributed on the bottom.

Figure 4 is a block diagram of a biometric information acquisition apparatus using a chair according to an embodiment of the present invention, the ECG signal (ECG), skin electrophoresis from the user's arm or palm in contact with the armrest (101a) (101b) of the chair Light detection to detect whether the left and right ECG sensor 111, GSR sensor 112, PPG sensor 113 and the user's arm or palm measure resistance (GSR) and optical volume pulse wave (PPG) Armrest biosignal measurement unit 110 including a sensor (CDS) 114 and the back ECG sensor unit for measuring the ECG signal (cECG) from the back of the user is installed on the back plate 102 of the chair ( 121, a seat plate electrocardiogram sensor unit 131 which is installed on the seat plate 103 of the chair to measure the ECG signal cECG from the buttocks of the user, the armrest biosignal measurement unit 110 and the back plate, Blood pressure, heart rate (HR), and blood pressure received from the bio signals measured from the seat ECG sensors 121 and 131. The biometric information processing unit 200 transmits the tress state, the emotional state parameter or the biosignal raw data to the personal computer or the smartphone 200.

The biometric information processing unit 200 is an armrest ECG amplifying unit for amplifying the ECG signal (ECG) measured by the left and right ECG sensor unit 111 of the chair armrest (101a, 101b) biometric information measuring unit 110 ( Amp1), a GSR amplifier (Amp2) for amplifying the skin electrical resistance (GSR) signal measured by the GSR sensor 112 of the armrest biometric information measuring unit 110, and the armrest biometric information measuring unit 110 of A PPG amplifier (Amp3) for amplifying the optical volume pulse wave signal (PPG) measured by the PPG sensor 113, a CDS amplifier (Amp4) for amplifying the optical signal detection signal measured from the CDS sensor 114, and A back ECG amplifier amp5 for amplifying the ECG signal cECG measured by the back ECG sensor 121 and a left ECG amplifier amplify the ECG signal cECG measured by the seat ECG sensor 131. (Amp7) and the back and seat pressure sensor installed at regular intervals to analyze the sitting posture of the user sitting on the chair A posture data calculation unit 210 for calculating a posture data of a user from a distribution value of each of the pressure intensities measured by the unit FSR 122 and 132 and the pressure sensors FSR 122 and 132; , And receiving the amplified electrocardiogram, skin electrical resistance and optical volume pulse wave from each of the amplification units (Amp1 to Amp4, Amp7) to determine the user's blood pressure, heart rate (HR), stress state and emotional state, and the posture. It is composed of a microcontroller 220 for transmitting the sitting posture data of the user input from the setter calculation unit 210 to the smart phone or a personal computer in a wireless communication method.

The microcontroller 220 may transmit the obtained electrocardiogram signal raw data without calculating biometric information as necessary.

The operation of the apparatus for obtaining biometric information using the chair according to the present invention configured as described above will be described in detail with reference to FIGS. 2 to 4.

4 is a block diagram of the entire biometric information acquisition apparatus using a chair according to an embodiment of the present invention. When the user sits in a chair and turns on power for the operation of the biometric information acquisition device to acquire biometric information, the respective sensors Receive bio signals and pressure detection signals from the fields 111 to 132

That is, the microcontroller 220 receives the light detection signal detected from the CDS sensors 114a and 114b provided in the left and right armrests 101a and 101b to determine whether the user's arm or palm is in contact. do.

If it is determined that the user's arm or palm is in contact with the armrest biosignal measuring unit 110, the respective detection signals from the left and right ECG sensor unit 111, the GSR sensor 112 and the PPG sensor 113, respectively. Acquiring (ECG, GSR, PPG) and amplifying through each of the amplifier (Amp1 ~ Amp3) is input to the microcontroller 220.

The microcontroller 220 is a blood pressure, heart rate (HR) and stress state, emotions that can know the health state from the input ECG signals (ECG, cECG), skin electrical resistance (GSR), optical volume pulse wave (PPG) data It calculates the parameters to determine the state.

That is, the microcontroller 220 is in a health state from the ECG signal ECG from the armrest left and right ECG sensor unit 111 and the ECG signal cECG obtained from the back plate and the seat plate ECG sensors 121 and 131. Information (HR) and parameters for stress analysis (R-peak, RRI, LF, HF, SDNN, etc.) are calculated, and the calculated parameters are calculated to calculate the stress index (LF / HF), and through the stress index Determine the stress state of the user. The emotional state is calculated using the stress index and the obtained skin electrical resistance (GSR) data.

The emotional state determination method is disclosed in Korean Patent Application No. 10-2010-0101844 (Emotional State Analysis Apparatus and Method According to Bio-Signal Analysis of User) Filed by Applicant of the Present Invention.

On the other hand, the microcontroller 220 is the arm or palm ECG signal (ECG) from the armrest left and right ECG sensor unit 111, and each ECG sensor unit 121, 131 provided on the back plate / seat plate The ECG signals cECG of the user's back and hips are obtained and amplified through the corresponding amplifiers Amp5 and Amp7, and are simultaneously input to the microcontroller 220.

 As described above, the microcontroller 220 which receives the ECG signals cECG from the left and right ECG sensor parts and the ECG sensor parts 121 and 131 at the same time receives each bioinformation parameter from the ECG signal. R-peak, RRI, HR, LF, HF) and the stress index (LF / HF) to determine the user's stress status, if the armrest left or right arm or palm of the user in contact with the ECG sensor unit 111 If a lead failure occurs, such as movement of the human body, an error occurs in calculating biometric information and stress index.

In this case, the stress index (LF / HF) is calculated from the biometric information parameters R-peak, RRI, HR, LF, and HF obtained from the back ECG sensor 121 to determine the stress state of the user.

In addition to the left and right ECG sensor 111 of the armrest left and right ECG in the microcontroller 220, the bioinformation parameters obtained from the back ECG sensor 121, the error occurs due to a contact error, the left ECG The stress index LF / HF is calculated from the biometric information parameters R-peak, RRI, HR, LF, and HF obtained from the sensor unit 131 to determine the stress state of the user.

In addition, the microcontroller 220 measures pulse wave transmission time (PAT) data by measuring pulse wave propagation time from an electrocardiogram signal (ECG) and an optical volume pulse wave (PPG) input from the armrest biosignal measurement unit 110. Will be calculated.

In another embodiment of the present invention, the electrocardiogram signals ECG, cECG, skin electrical resistance (GSR), and optical pulse wave (PPG) data input to the microcontroller 220 are directly stored as raw data. By transmitting to a personal computer 300 wirelessly connected, the personal computer 300 to calculate the health state, stress state or emotional state of the user.

On the other hand, the pressure signal (Back / Hip-FSR 5chs) of each of the five channels detected by the back plate / seat pressure sensor unit 122, 132 is received from the posture data calculation unit 210 changes in the center of gravity and posture change Record the trend and record the time sitting on the chair to determine the correct posture or crooked posture and calculate the duration.

By transmitting to the personal computer 300 through the microcontroller 220, it is managed to daily, weekly, monthly and the like.

In this way, the biometric and pressure signals such as electrocardiogram, skin electrical resistance and optical volume pulse wave are acquired from the user sitting on the chair, and the user's health computer, stress state, emotional state and posture change data are calculated and used through his personal computer. It can be managed continuously.

Biological information acquisition apparatus using a chair according to the present invention described above is not limited to the above embodiment, it can be variously changed according to the configuration of the biosignal acquisition apparatus, the subject matter of the present invention claimed in the following claims Without departing from the technical spirit of the present invention to the extent that anyone who has ordinary knowledge in the field to which the present invention can be variously changed.

100: chair 101a, 101b: left and right armrests
102: back 103: seat
110: armrest bio signal measuring unit 111, 111a, 111b: left, right ECG sensor unit
112: GSR sensor 113: PPG sensor
114, 114a, 114b: left and right CDS sensor 121,131: back, seat ECG sensor
122,132: back, seat pressure sensor 200: biometric information processing
210: posture data calculation unit 220: microcontroller
300: personal computer

Claims (11)

In the biological information acquisition apparatus using a chair for obtaining the user's bio-signal from each of the bio-signal acquisition sensor and pressure sensor installed on the armrest, back plate, seat of the chair,
An armrest biosignal measuring unit configured to measure an electrocardiogram (ECG), skin electrical resistance (GSR), and optical volume pulse wave (PPG) from an arm or a palm of a user in contact with the armrest of the chair;
A back electrocardiogram sensor unit installed on the back of the chair to measure an electrocardiogram signal from the back of the user in contact;
A seat plate electrocardiogram sensor unit installed on the seat plate of the chair to measure an electrocardiogram signal from the hip of the user in contact;
And a biometric information processor for receiving biometric signals measured from the armrest biosignal measuring unit, the back plate, and the seat ECG sensor unit and transmitting biometric information parameters or biosignal raw data to a personal computer or a smart phone. Biological information acquisition apparatus using a chair. The method of claim 1,
The back plate and the seat ECG sensor unit are capacitive ECG sensors (capacitive ECG sensor) capable of measuring the ECG signal while the user is wearing clothes by using a fabric electrode. The method of claim 1,
The armrest biosignal measuring unit is exposed to the upper armrest, the light sensing sensor for detecting whether the user's arm or palm contact;
A PPG sensor for measuring optical volume pulse wave (PPG) in the user's arm or palm as the user's arm or palm contact is determined by the optical sensor;
Left and right ECG sensor unit for measuring the ECG signal from the user's arm or palm; And
A GSR sensor for measuring skin electrical resistance (GSR) in the user's arm or palm; Biological information acquisition apparatus using a chair, characterized in that configured to include. The method of claim 3, wherein
The left and right ECG sensor units are provided with positive and negative electrodes (+,-) on the left and right armrests, and ground terminals are respectively provided on both armrests.
The PPG sensor is a biological information acquisition device using a chair, characterized in that provided in one of the left and right armrests. The method according to claim 3 or 4,
Biological information acquisition apparatus using a chair, characterized in that the left, right armrest further comprises a light sensor (CDS) for detecting whether the user's arm or palm contact. The method of claim 1,
The biometric information parameter acquired by the chair biometric information processor is at least one of an R-peak, an RRI, a heart rate (HR), a blood pressure, a stress index, or an emotional state parameter. The method of claim 1,
Chair biometric information processing unit armrest ECG amplification unit for amplifying the ECG signal measured by the biometric information measuring unit of the chair armrest;
A GSR amplifier for amplifying the skin electrical resistance signal measured by the biometric information measuring part of the armrest;
A PPG amplifier for amplifying the optical volume pulse wave signal measured by the biometric information measuring part of the armrest;
A back ECG amplifier for amplifying the ECG signal measured by the back ECG sensor;
A seat ECG amplifier for amplifying the ECG signal measured by the seat ECG sensor;
And calculating parameters for determining a user's blood pressure, heart rate per minute (HR), stress state, and emotional state by receiving each amplified electrocardiogram, skin electrical resistance, and optical volume pulse wave from each amplifying unit, and using the wireless data. Or a microcontroller for transmitting to a personal computer; Biological information acquisition apparatus using a chair comprising a. The method of claim 7, wherein
The microcontroller inputs the armrest ECG amplifier, the back ECG amplifier and the seat ECG amplifier at the same time to calculate the heart rate, stress state and emotional state parameters,
When the error occurs in the armrest ECG signal, biometric information acquisition apparatus using a chair characterized in that it calculates the heart rate, stress state and emotional state parameters calculated from the back or seat ECG signal. The method of claim 8,
The microcontroller calculates the heart rate, the stress state and the emotional state parameters calculated from the seat plate ECG signal when an error occurs in the signal acquisition due to a contact error in the armrest ECG signal or the backside ECG signal. Biological information acquisition device. The method of claim 1,
A plurality of pressure sensors (FSRs) distributed at regular intervals in order to analyze a sitting posture of a user sitting on a seat and a back of the chair; And
And a posture calculation unit configured to calculate a posture data of the user from the distribution value of each pressure intensity measured by the pressure sensors (FSR) and output the posture data to the biometric information processing unit. . The method of claim 1,
Distributing five pressure sensors on the chair back and the seat plate,
Each pressure sensor is a biological information acquisition device using a chair, characterized in that for measuring the pressure strength in four steps.

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