KR20120055273A - System for processing bio-signals and sensor for measuring of bio-signals - Google Patents

Abstract

PURPOSE: A bio signal managing system and a bio signal measuring device are provided to perform a proper treatment according to the change of a bio signal by remotely monitoring a health condition of an individual in real time. CONSTITUTION: A bio signal measuring unit(300) measures a bio signal including a pulse and oxygen saturation. A sensing unit(313) provides a sensing value of the movement of a user. A control unit(311) generates an emergency signal if the bio signal from the bio signal measuring unit is a reference signal value or more and the sensing value from the sensing unit is a reference sensing value or less. A communication unit(315) transmits the emergency signal from the control unit.

Description

System for processing bio-signals and sensor for measuring of bio-signals

The present invention relates to the monitoring of an individual's biosignal, and more particularly, to a biosignal management system and a biosignal measuring apparatus for enabling an appropriate response in an emergency situation by real-time remote monitoring of an individual's biosignal.

Recent changes in the social environment have led to an increase in health care costs, with an increasing interest in health, leading to 14% of GDP in the US and 7% of GDP in Korea. have.

In particular, in the medical service field, due to the rapid development of IT technology, research and development in the mobile health care field based on the ubiquitous environment combining IT technology and medical field is emerging.

Although the expenditure of medical expenses is increasing and new medical services are being developed, patients in need of emergency rescue and treatment are often not provided with appropriate medical services even though there are many emergency rescue systems.

Currently, due to the rapid increase of the elderly population due to the aging society, the increase of dual-generation households, the increase of physical distance between families due to the nuclear family, the rapid increase in facilities where the elderly and elderly people, such as postpartum care centers and silver towns, and the medical gap due to the declining population of farming and fishing villages This is not the case even when an emergency condition is reported to an emergency medical institution, or direct emergency treatment must be made quickly.

In other words, as the population of the underprivileged living alone, elderly, severely disabled, and chronically ill lives increases due to aging, nuclear family, and family dismantling, early detection and prompt emergency treatment are emerging as social problems when crisis situations occur.

In addition, the rate of sudden death due to excessive work and stress is also increasing in the general public, and as a result of the crisis, interest in portable devices that can check the health of the individual without going to the hospital as an active personal health care agent is increasing. Doing.

Therefore, it is necessary to develop a system that continuously checks and manages health and notifies emergency situations in order to respond quickly to the emergence of health emergencies of the underprivileged as well as the general public.

The problem to be solved by the present invention is to propose a biosignal management system and apparatus that enables an effective response in the event of an emergency by remotely monitoring the health state of an individual in real time.

Another object of the present invention is to propose a biosignal management system and apparatus for remotely monitoring an individual's health status in real time so as to recognize people located in an adjacent area when an emergency occurs so that appropriate first aid can be performed. have.

Another problem to be solved by the present invention is to propose a biosignal management system and apparatus that can remotely monitor the health status of an individual in real time to determine whether the biosignal changes due to the user's activity to perform appropriate treatment. .

To this end, the biosignal measuring apparatus of the present invention is employed in a user's finger, and provides a biosignal measuring unit for measuring and providing a biosignal including pulse and oxygen saturation, and a sensing unit providing a sensing value for sensing the user's movement. A control unit for generating an emergency signal when the biosignal provided from the biosignal measuring unit is greater than or equal to a reference signal value and the sensing value provided from the sensing unit is less than or equal to a reference sensing value, and a communication unit transmitting an emergency signal generated by the control unit. It includes.

To this end, the biosignal management system of the present invention is employed on a user's finger, measures a biosignal including pulse and oxygen saturation, measures the user's movement, and the measured biosignal is equal to or greater than a reference signal value, If the measured sensing value is less than the reference sensing value, the biosignal measuring apparatus for generating and transmitting an emergency signal, a wireless access pointer (AP) for receiving and transmitting an emergency signal from the biosignal measuring apparatus, the emergency signal from the wireless AP And a server requesting the wireless AP to transmit the biosignal if the biosignal is not received for a predetermined time.

The biosignal management system and method according to the present invention enable effective response in the event of an emergency by remotely monitoring the health status of an individual in real time, and make an appropriate emergency by recognizing people located in an adjacent area when an emergency occurs. This has the advantage of allowing the treatment to be performed.

In addition, the biosignal management system and apparatus according to the present invention has an effect of performing a proper treatment by remotely monitoring the health state of an individual in real time to determine whether the biosignal is changed due to a user's activity.

1 is a view showing the configuration of a bio-signal management system according to an embodiment of the present invention,
2 is a view showing a principle of measuring a bio-signal by PPG according to an embodiment of the present invention,
3 is a block diagram illustrating a configuration of a biosignal measuring apparatus according to an exemplary embodiment.
4 illustrates an operation performed in the biosignal management system according to an embodiment of the present invention.

The foregoing and further aspects of the present invention will become more apparent through the preferred embodiments described with reference to the accompanying drawings. Hereinafter will be described in detail to enable those skilled in the art to easily understand and reproduce through this embodiment of the present invention.

Domestic ubiquitous-health care-related technologies are aiming at improving mobility for the convenience of customers and miniaturization / lower power of sensors and terminals. The present invention proposes a bio-signal management system using an ever-wearing pulse and oxygen saturation measuring apparatus using Photo plethysmography (PPG).

1 illustrates a configuration of a biosignal management system according to an exemplary embodiment of the present invention. Hereinafter, the biosignal management system according to an embodiment of the present invention will be described in detail with reference to FIG. 1.

Referring to FIG. 1, the biosignal management system includes a biosignal measuring apparatus 100, a relay device (access point; wireless AP) 110, and a server 120. Of course, it is obvious that other configurations may be included in the biosignal management system.

The biosignal measuring apparatus 100 includes a biosignal measuring unit for measuring pulse and oxygen saturation in a form in which the user is always worn on a finger. The biosignal measuring apparatus 100 measures the pulse rate and the oxygen saturation degree using a photoelectric pulse wave. The biosignal measuring apparatus 100 measures the change in blood flow generated in the capillaries at the fingertips using the LED and the photodiode.

Figure 2 shows an example of measuring the pulse and oxygen saturation of the fingertip using the photoelectric pulse wave in accordance with an embodiment of the present invention.

The biosignal measuring apparatus 100 measures a biosignal generated at a fingertip by using a biosignal measuring unit connected through a cable in a wristwatch-type data processing apparatus and processes the biosignal in the data processing apparatus.

In other words, the PPG sensor constituting the bio-signal measuring unit detects the pulse wave of the finger. The PPG sensor can use any one of a module in which the light source and the photodetector are integrated into one unit and a separate light source and the photodetector, and their functions and roles are the same. For example, the light source can measure the oxygen saturation in the blood using an LED that emits light in two wavelengths of 660 nm and 940 nm, and the photodetector can use a photo-diode. As in the present invention, a module formed separately from the module in which the light source and the photodetector are integrally integrated is used as the PPG sensor.

3 is a block diagram illustrating a configuration of a biosignal measuring apparatus according to an exemplary embodiment. Hereinafter, the configuration of a biosignal measuring apparatus according to an exemplary embodiment of the present invention will be described in detail with reference to FIG. 3.

3, the biosignal measuring apparatus includes a biosignal measuring unit 300, a data processing unit 310, a cable (not shown) connecting the biosignal measuring unit 300 and the data processing unit 310 to each other. The data processing apparatus 310 includes a control unit 311, a display unit 312, a sensor unit 313, a storage unit 314, and a communication unit 315.

The biosignal measuring unit 300 is formed to have a structure inserted into a fingertip, and amplifies an analog signal of a pulse generated from a capillary at the fingertip, and then transmits the analog signal to the data processing apparatus 310 using a cable.

The sensor unit 313 senses a user's movement and provides the sensed value (sensing value) to the controller 311. In this regard, the sensor unit 313 uses a motion sensor (including two-axis and three-axis sensors). In addition to the sensor unit 313 included in the data processing apparatus 310, a separate monitoring unit may be configured in the biosignal measuring unit 300.

The monitoring unit monitors whether the user who uses the biosignal measuring apparatus wears the apparatus. That is, the monitoring unit monitors and provides the control unit 311 when the user does not wear the biosignal measuring apparatus 100 or unconsciously detaches it. The monitoring unit may monitor that the finger is separated using the LED and the photo diode (PD) of the biosignal measuring unit 300 instead of a separate monitoring device.

The display unit 312 maintains a sleep mode in which power supply is normally stopped to reduce power consumption. When the display unit 312 detects an operation of the display unit operation button attached to the data processing apparatus 310 by the user, the display unit 312 is switched to an active mode (on state) in which power supply is maintained for a set time, and when the set time elapses, It goes back to sleep mode. When the display unit operation button operation is detected from the user a plurality of times, the active mode is maintained for a set time after the last operation.

In addition, when an operation of the display unit operation button attached to the data processing apparatus 310 is detected by the user, the display unit 312 maintains the on state, and when the operation of the display unit operation button is detected again in the on state, the pulse rate is displayed. The mode is switched. That is, the display unit 312 displays the pulse rate when the display unit operation button is operated once, when the current time is displayed, and when the display unit operation button is operated again later. When the display unit operation button operation is detected while the pulse rate is displayed, the display unit 312 displays the current time again. In addition, the display unit 312 displays the remaining amount of the battery built in the data processing apparatus 310.

In connection with the present invention, the current time displayed on the display unit 312 is periodically received from the wireless AP 110, or automatically received from the wireless AP 110 when the biosignal measuring apparatus is powered on. In this way, the accuracy of the current time displayed on the display unit 312 can be increased.

The controller 311 sets the maximum sensing value of the motion sensor (two- and three-axis sensors) that do not affect the biosignal as a reference sensing value through experiments. The controller 311 compares the sensing value provided from the sensor unit 313 with the reference sensing value. When the sensing value provided as a result of the comparison exceeds the reference sensing value, the controller 311 determines that the wearer is currently moving and ignores the provided sensing value. That is, the controller 311 recognizes that the current user is normal when the sensing value provided as a result of the comparison exceeds the reference sensing value.

If the sensing value provided as a result of the comparison is less than the reference sensing value, the controller 311 analyzes the provided sensing value and takes necessary measures.

Separately, the control unit 311, if notified by the monitoring unit that the user is not wearing the device to provide information about this to the server 120 through the wireless AP 110 or to the user through the display unit 312 or the speaker to provide.

Arrhythmia means that the pulse beats irregularly. Pulse is a phenomenon in which the blood in the heart is released into the arteries as the heart contracts. Arrhythmias therefore occur because the heart beats irregularly.

Normal pulse rate is determined by many factors, including a person's age, position, physical condition, mental state, and health status. At rest, children under 10 years old have a normal pulse rate of more than 90 beats per minute. However, with age, the pulse rate gradually decreases, and in the case of a 70-year-old man, the pulse rate per minute is about 50 to 60 times.

To exercise, you need oxygen and blood supply. Therefore, as we exercise, our breathing increases and the heart beats faster and stronger. When we exercise extremely hard, our pulse rate reaches its maximum pulse rate, which is the number of years that we subtracted from 220. For example, a 20-year-old man's pulse rate is about 200 beats per minute, while a 70-year-old man's pulse rate is about 150 beats per minute.

As described above, even if the pulse rate is higher than the reference value, the controller 311 of the present invention does not transmit an emergency signal to the wireless AP 110 when the user is exercising or is active according to the value sensed by the sensor unit 313.

The communication unit 315 performs wireless communication with the wireless AP, and transmits the biosignal measured according to the instruction of the control unit 311 to the wireless AP 110 using Zigbee communication. In general, the transmission distance of the Zigbee communication is 10 to 100m, but depends on whether the network band is 2.4GHz or less than 1kHz. It depends on whether the networked communication devices are in the room. In addition, ZigBee communication also affects the thickness of the wall and ceiling, as well as the transmission distance, and the most important variable is how much hopping the data reaches its destination, and can be sent far away through the router several times. .

In connection with the present invention, the communication unit 315 provides the wireless AP 110 with information about this in an emergency situation according to the instruction of the control unit 311. The emergency situation is when the user operates the emergency button attached to the data processing device 310, when the measured pulse and oxygen saturation exceeds the reference signal value, when the change in the pulse and oxygen saturation for a certain period of time, etc. This includes.

In addition, the communication unit 315 transmits the pulse and oxygen saturation measured at regular intervals in addition to the above-described emergency situation, the period can be adjusted according to the settings of the user or server administrator.

The storage unit 314 stores a program for driving the data processing apparatus 310 and stores a biosignal measured by the biosignal measuring unit 300. In addition, the storage unit 314 stores a reference sensing value for monitoring the user's activity and a reference signal value serving as a reference for determining whether the measured biosignal is an emergency signal.

The data processing apparatus of the present invention may include a voice output unit in addition to the above-described configuration. The voice output unit may alert the user by outputting a warning sound when the pulse or oxygen saturation level of the user exceeds a reference signal value or when the user operates the emergency button. This allows people around the user to hear the beep and take first aid.

The wireless AP 110 transmits the information received from the biosignal measuring apparatus and the information on the emergency situation to the server 120 through Zigbee communication. The wireless AP 110 transmits the information received from the server 120 to the biosignal measuring apparatus 100.

In connection with the present invention, the wireless AP 110 configures a voice output unit, and the voice output unit outputs information on the received emergency situation as a voice to draw attention of those around.

The server 120 monitors the bio-signal received from the wireless AP 110 in real time, and provides the target information to the emergency relief organization at the same time as the alarm when an emergency occurs. The server 120 manages bio signals received at regular time intervals from the wireless AP 110 and provides the received bio signal information when necessary. In addition, the server 120 manages information of the subject wearing the biosignal measuring apparatus 100. Along with this, the server receives the failure of the biosignal measuring apparatus 100 and manages the failure history.

4 is a flowchart illustrating an operation of a biosignal management system according to an exemplary embodiment. Hereinafter, the operation of the biosignal management system according to an exemplary embodiment of the present invention will be described in detail with reference to FIG. 4.

According to FIG. 4, the biosignal management system includes a biosignal measuring apparatus, a wireless AP, and a server. In step S400, the wireless AP performs a setting step with the server. When the biosignal measuring apparatus and the wireless AP operate normally, the wireless AP establishes a wireless link using socket communication with a server.

After performing the setting step, the wireless AP performs the biosignal transmission step in step S402. The wireless AP periodically transmits the biosignal measured by the biosignal measuring apparatus to the server after the radio link is established. In connection with the present invention, the server does not transmit a response message to the wireless AP in connection with the received biosignal. That is, in the present invention, the biosignal transmission step performs one-way communication of transmitting the biosignal measured by the biosignal measuring apparatus to the server. The server updates the stored biometric information by using the received biosignal.

Separately, the server of the present invention transmits a control signal for requesting the transmission of the biosignal to the wireless AP in step S404 if the biosignal is not transmitted to the wireless AP within the set time after the radio link is established. That is, the server maintains the active mode when the biosignal is transmitted from the wireless AP within the set time. If the biosignal is not transmitted from the wireless AP within the set time, the server switches to the inactive mode and takes necessary measures. That is, if the biosignal is not transmitted from the wireless AP within the set time, it is determined that an abnormality has occurred in the biosignal measuring apparatus and takes necessary measures.

According to the present invention, if it is determined that the emergency signal is analyzed by the biosignal measurement apparatus, the wireless AP reports an emergency situation to the server. In this case, the server notifies the wireless AP that it has received an emergency report. That is, the server does not transmit a response message to the wireless AP for periodic biosignal reports, but transmits a response message to the wireless AP for reports on emergency situations. The wireless AP may notify that the emergency situation is any one of a plurality of divided classes. That is, the emergency may be classified into an emergency state, a quasi-emergency state, and a normal state, and the wireless AP may transmit state information of one of the divided emergency situations.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the present invention .

100: biological signal measuring device 110: wireless AP
120: server 300: bio-signal measuring unit
310: data processing device 311: controller
312: display unit 313: sensor unit
314: storage unit 315: communication unit

Claims (12)

A biosignal measuring unit which is adopted by a user's finger and measures and provides a biosignal including pulse and oxygen saturation;
A sensing unit providing a sensing value sensing the movement of the user;
A controller configured to generate an emergency signal when a biosignal provided from the biosignal measuring unit is greater than or equal to a reference signal value and a sensing value provided from the sensing unit is less than or equal to a reference sensing value;
And a communication unit for transmitting an emergency signal generated by the control unit.
The biosignal measuring unit of claim 1, wherein
The bio-signal measuring apparatus comprising a monitoring unit for monitoring whether the bio-signal measuring unit is separated from the user's finger.
The method of claim 1,
And a display unit for displaying biometric information measured by the biosignal measuring unit.
The method of claim 1, wherein the reference sensing value,
A biosignal measuring apparatus, characterized in that the maximum value does not affect the measurement of the biosignal measured using a three-axis sensor.
The display apparatus according to claim 4, further comprising a display unit operation button for operating the display unit.
The display unit displays the current time when the display unit operation button is operated once, and displays the bio signal measured by the bio signal measuring unit when the display unit operation button is re-operated within a set time.
The apparatus of claim 5, wherein the communication unit communicates with an external device using Zigbee communication.
A biosignal employed in a user's finger, measuring a biosignal including pulse and oxygen saturation, measuring the user's movement, the measured biosignal is greater than or equal to a reference signal value, and the measured sensing value is less than or equal to a reference sensing value. A biological signal measuring device generating and transmitting an emergency signal;
A wireless access pointer (AP) for receiving and transmitting an emergency signal from the biosignal measuring apparatus;
And a server for receiving an emergency signal from the wireless AP and requesting transmission of the biosignal to the wireless AP if a biosignal is not received for a predetermined time.
The apparatus of claim 7, wherein the biosignal measuring apparatus comprises:
A biosignal measuring unit which is adopted by a user's finger and measures and provides a biosignal including pulse and oxygen saturation;
A sensing unit providing a sensing value sensing the movement of the user;
A controller configured to generate an emergency signal when a biosignal provided from the biosignal measuring unit is greater than or equal to a reference signal value and a sensing value provided from the sensing unit is less than or equal to a reference sensing value;
Communication unit for transmitting the emergency signal generated by the control unit;
And a display unit for displaying biometric information measured by the biosignal measuring unit.
The apparatus of claim 8, wherein the biosignal measuring apparatus includes a display part manipulation button to manipulate the display part.
The display unit displays the current time when the display unit operation button is operated once, and displays the bio signal measured by the bio signal measuring unit when the display unit operation button is re-operated within a set time.
The apparatus of claim 9, wherein the biosignal measuring apparatus comprises:
Biological signal management system characterized in that for transmitting the biological signal measured at a set periodic interval to the wireless AP.
The method of claim 7, wherein the wireless AP,
And a voice output unit configured to output a voice when the emergency signal is received from the biosignal measuring apparatus.
The method of claim 11, wherein the server,
And output a warning sound when the emergency signal is received, and provide the user's information to the emergency agency.

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