CN113080983A

CN113080983A - Electrocardiogram measuring device using low-power-consumption long-distance communication network

Info

Publication number: CN113080983A
Application number: CN202011312404.6A
Authority: CN
Inventors: 白俊镐
Original assignee: Third Youth Co ltd
Current assignee: Third Youth Co ltd
Priority date: 2019-12-23
Filing date: 2020-11-20
Publication date: 2021-07-09
Also published as: KR20210080866A

Abstract

The invention provides an electrocardiogram measuring device using a low-power consumption long-distance communication network, which relates to the change of potential which is generated and disappears in the transmission process of an electric signal of a heart and the utilization of an electrocardiogram.

Description

Electrocardiogram measuring device using low-power-consumption long-distance communication network

Technical Field

The present invention relates to an electrocardiogram measuring apparatus and interpretation algorithm using a low-power consumption long-distance communication network.

Background

Sudden death is too easy and can be determined in about ten minutes. Sudden death can also be symptomatic for normal healthy people and can cause death within an hour, and heart disease and cerebrovascular disease are the first causes of death in adults in korea. When excessive exercise, excessive smoking, or excessive cholesterol is applied, blood cannot be rapidly circulated to the heart, and ischemia is caused due to insufficient blood, or the blood pressure rapidly rises with the contraction of blood vessels, and a load is applied to the heart, so that the risk of sudden death due to cardioplegia increases. In addition, various important adult diseases include hypertension, diabetes, obesity, arteriosclerosis, heart disease, dyslipidemia, and if they become serious, stroke, cancer, and other persistent ailments are caused. There are cases where the occurrence of heart diseases increases with the decrease in physical activity and the change in dietary life caused in the process of the progress to the industrialized society, but the importance of management and diagnosis of heart diseases is prominent with the progress to the rapidly aging society. The heart disease is classified as an important disease causing the onset of all other diseases, and one of the important diagnostic methods for this is to grasp abnormal activity of the heart by measurement of an electrocardiogram.

The heart has the ability to beat by itself, is the only organ in the human body that has a rhythm from the fetus to death and can beat by itself, and functions as a pump for transporting blood to the whole body by repeating contraction and relaxation, thereby supplying oxygen and nutrients to various tissues in the human body. When an electrical signal transmitted for contraction or relaxation of heart muscle is first generated not in a normal path but in other parts or when an abnormality occurs in which the transmission of the electrical signal is irregular, an arrhythmia (arrhythmia) occurs in which the heart cannot perform regular contraction or relaxation. Arrhythmia is complicated in kind, does not have symptoms, and sometimes does not cause hemodynamic disorders, but sudden death may occur when a disease such as dizziness or coma occurs without taking appropriate emergency measures. When an electrocardiogram is measured and analyzed, such arrhythmia is diagnosed by determining whether a normal signal is transmitted to the heart or whether an abnormal phenomenon is displayed at any part of the heart.

In this case, the arrhythmia itself does not mean a heart disease, and even if an arrhythmia exists, the body can move with almost no trouble. However, since this arrhythmia suddenly develops into a severe form without any sign, it is necessary to measure the heart activity when there is an abnormality at ordinary times, and to provide the specialist with the heart state to obtain a diagnosis of the cardiologist.

There are various methods of portable electrocardiographic measurement devices, mainly known as a neck hanging electrocardiographic measurement, which is an analytical examination performed after electrodes are attached to the chest and connected to a portable recorder to record the images for 24 hours or more in daily activities, and as for the neck hanging device, registration numbers 10 to 0548967 (neck hanging device) and 10 to 0356421 (portable electrocardiographic measurement device) and the like are disclosed in addition to korean patent application No. 1986 and 0002744 (portable electrocardiographic recorder).

However, the conventional electrocardiographic measuring apparatus cannot be widely used due to inconvenience in use, complexity and high cost when it is generally used for all patients. Further, in the case where no particular symptom appears within 24 hours, there is a disadvantage that the use is not performed at all or until the symptom is detected, and the use must be continued for a prolonged period of time. Therefore, by actually performing exercise in a hospital, artificial load is given to the heart, and the waveform of the electrocardiogram at that time is detected, so that it is very inconvenient to apply the exercise load examination method of examining whether or not abnormality occurs in the heart, and the electrocardiogram may not have abnormality during that time.

Finally, a device which is convenient for ordinary people to carry and can directly measure and store the electrocardiogram by a simple method before and after exercise or at the moment of abnormity is needed. The electrocardiogram used for the examination by the normal person is detected by bringing the electrodes into contact with the hands or the feet only when necessary, even if all the electrodes are not attached to the chest.

The related patent is registered with the registered patent No. 10-0356421 (portable electrocardiogram measuring apparatus), and the whole part of the electrode contacting part should use hand and foot, so the measuring place is limited, and the structure is not suitable for carrying and walking.

Further, korean laid-open patent No. 10-2006-0000080 (portable terminal device capable of measuring an electrocardiogram) is known, and only when an electrocardiogram is measured, three electrodes attached to the portable device are brought into contact with the right and left fingers, respectively, to detect an electrocardiogram signal. However, when an electrocardiogram is detected only with a finger, not only the cardiac vector directivity of the user but also when the skin of the user is dry, the detection of a signal is very weak, and an analyzable signal is often not detected, and therefore, the form of measurement only with a finger is limited in practical use.

That is, even in the portable measurement device and method, the application position of the electrodes clearly requires the use of fingers and the chest in order to detect an accurate electrocardiogram signal. Further, it is important that the result of diagnosis of the detected waveform is not judged by the user, but the measured waveform is provided to a clinical specialist without being distorted, and thus, it is stored in the device and output to obtain an accurate judgment by the clinical specialist.

As described above, since measurement of an electrocardiogram provides important diagnostic information, it is necessary to develop a portable wireless electrocardiogram measurement and storage device which is used as more accurate diagnostic data by directly measuring and storing an accurate electrocardiogram when a symptom that may cause sudden death occurs at home or in daily life without going to a hospital, but when the symptom occurs at home or in daily life without going to a hospital.

In order to realize the technology, there are solving elements such as the problem of selection and arrangement of sensors which are carried at ordinary times and can measure an electrocardiogram in a relatively fast time when necessary, the problem of analog processing of sensor outputs for detecting accurate electrocardiogram signals, the problem of digital signal processing algorithms for data storage and basic waveform analysis, the problem of data transfer for transferring stored signals to a PC or other communication terminal equipment and outputting them, the problem of power supply which can be used for a long time, and the problem of convenience in use and portability.

Disclosure of Invention

An embodiment of the present invention has been made to solve the above-mentioned problems, and provides an electrocardiographic measurement apparatus and interpretation algorithm using a low-power consumption long-distance communication network, which acquires electrocardiographic signals of suspected diseases at the time by bringing three electrodes attached to a portable device into contact with a finger and a chest without using gel (gel), analyzes and stores the signals, and transmits the stored electrocardiographic waveforms to a computer or a mobile communication device, thereby providing electrocardiographic waveforms to a user.

An electrocardiographic measuring apparatus and interpretation algorithm using a low power consumption long distance communication network for achieving the object of the present invention relates to an electrocardiographic measuring apparatus using a low power consumption long distance communication network for detecting an electrocardiographic signal by bringing an electrode attached to a portable device into contact with a finger and a chest of a user, comprising: an electrocardiogram sensor part which detects an electrocardiogram through two electrodes in contact with fingers of a user and one electrode in contact with a chest; an electrocardiogram signal detection unit for performing analog signal processing on the single-channel electrocardiogram signal detected by the electrocardiogram sensor unit; a control unit which converts the single-channel electrocardiogram signal from the electrocardiogram signal detection unit into a digital signal and stores the digital signal, extracts a feature point from the single-channel electrocardiogram signal by calculation using a stored analysis program, determines rhythm irregularity from the extracted feature point, and controls the stored electrocardiogram signal to be transmitted via a short-distance wireless network; and a display unit 111 for displaying the electrocardiogram waveform in real time under the control of the control unit.

An electrocardiogram measuring apparatus and an interpretation algorithm using a low power consumption long distance communication network for achieving the object of the present invention relates to an electrocardiogram measuring method for measuring and analyzing an electrocardiogram signal from a finger and a chest of a user through a finger electrode and a chest electrode of the electrocardiogram measuring apparatus provided in the low power consumption long distance communication network and displaying the electrocardiogram signal on a display unit, the method comprising the steps of: measuring an electrocardiogram signal from a finger and a chest in contact with a finger electrode and a chest electrode provided in an electrocardiogram measuring apparatus; a value that is allowed to be selected according to a user's operation of an external input key by an external input of the control section; performing analog signal processing on the measured analog electrocardiogram signal, and converting the processed analog electrocardiogram signal into a digital signal and inputting the digital signal; applying a digital low-pass filter to the electrocardiogram signal converted into the digital signal, and displaying the processed digital signal containing the trend of removal; performing an analysis of the electrocardiogram signal in case the detection of the electrocardiogram signal within the certain time is completed; displaying the results of the analysis.

The electrocardiogram measuring apparatus and the interpretation method using the low power consumption long distance communication network according to the embodiment of the present invention have an effect that a user carries the electrocardiogram measuring apparatus and walks at ordinary times, the user directly detects the current electrocardiogram signal which shows an abnormal sign by using the electrocardiogram measuring apparatus, and automatically analyzes and stores the electrocardiogram signal, and then provides and obtains an accurate diagnosis and prescription when going to a hospital, thereby overcoming the disadvantages of the conventional 12-channel electrocardiogram examination which has heart diseases caused by sudden death and does not have an abnormal phenomenon when going to the hospital or the neck-hanging electrocardiogram examination which is attached with electrodes and measured for 24 hours continuously, and being used as a health management apparatus which can actively manage the heart diseases of the user.

Drawings

FIG. 1 is a drawing showing a usage example of an electrocardiographic measuring device using a low-power consumption long-distance communication network of the present invention;

FIG. 2 is a block diagram of an electrocardiographic measuring device utilizing a low-power consumption long-distance communication network according to the present invention;

FIG. 3 is a specific circuit diagram of a control unit including an input unit, a status display unit, and a display unit according to the present invention;

FIG. 4 is a flow chart showing the electrocardiogram measuring and analyzing method of the present invention;

fig. 5 is a diagram showing an output example of a waveform stored after electrocardiography measurement according to the present invention.

Description of the reference numerals

101: power button 103: menu selection button

105: menu search button 107: long-distance communication network

111: the display section 150: interface part

300: electrocardiographic measurement device 305C: chest electrode

305 f: the finger electrodes 350: user' s

400: the electrocardiogram signal detection unit 450: control unit

451: the analog-to-digital conversion section 453: digital signal processing unit

455: random access memory 457: read-only memory

459: the flash memory 470: short-range wireless network

Detailed Description

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

In describing the present invention, when it is judged that the gist of the present invention is obscured by a specific description of a related known structure or function, the specific description is omitted.

The structure and operation of the electrocardiographic measuring device using a low-power consumption long-distance communication network according to the present invention and the method for analyzing, storing and transmitting an electrocardiogram performed in the device will be described below with reference to the accompanying drawings.

Fig. 1 is a perspective view showing an example of an electrocardiographic measuring device using a low-power consumption long-distance communication network of the present invention, which is a final form to be realized by the present invention.

As shown in the figure, in a state where the user touches the two finger electrodes 305f attached to the electrocardiographic measuring device 300 with one hand, the chest electrode 305c on the opposite side of the electrocardiographic measuring device 300 is touched with the chest on the opposite side of the finger, and the electrocardiographic measuring device 300 is driven by the power button 101, the menu selection button 103, and the menu search button 105. The signal detected by the electrocardiograph measurement device 300 is an electrocardiograph signal, and is displayed on the display unit 111 in front of the electrocardiograph measurement device 300 in real time. The electrocardiogram signal measured by the electrocardiogram measuring apparatus 300 is stored in the internal memory of the electrocardiogram measuring apparatus 300, and the stored signal is transmitted to an external PC or a communication terminal device using the long-distance communication network 107 or the bluetooth protocol.

That is, the electrocardiogram signal stored in the internal memory is transmitted to a computer or a communication terminal device by wire using the long-distance communication network 107 and by wireless using the bluetooth protocol.

In order to measure an electrocardiogram signal by the electrocardiogram measuring apparatus 300, 1) the power button 101 on the left side of the upper surface of the electrocardiogram measuring apparatus 300 is pressed to apply power to the electrocardiogram measuring apparatus 300.

2) The electrocardiograph measurement device 300 is switched to the measurement mode by pressing the menu search button 105 and the menu selection button 103 on the upper right side of the front surface.

3) In a state where the finger portion electrode 305f is touched with one hand, the chest portion electrode 305c is brought into contact with the chest of the hand opposite to the finger, and the menu selection button 103 is pressed to drive the electrocardiograph device 300.

4) The display unit 111 of the electrocardiogram measuring apparatus 300 displays the detected electrocardiogram signal, and the electrocardiogram signal thus measured is stored in the random access memory (455 of fig. 3) of the control unit (450 of fig. 3) of the electrocardiogram measuring apparatus 300. The stored data is subjected to arithmetic processing through a series of processes, and the result of regularity of the electrocardiogram rhythm is displayed on the display unit 111. After the completion of the measurement, the long-distance communication network 107 or bluetooth protocol is used for transmission to the PC or the communication terminal device.

An electrocardiogram signal, which is an expression of an action potential displayed along a nerve transmission channel of the heart, is detected by the electrodes 305f, 305c configured in the present invention, and is transmitted to the electrocardiogram signal detecting section (400 of fig. 3).

The electrocardiographic sensor portion is made of a material having a portion in contact with a human body and excellent electrolytic conductivity, and in order to detect an accurate electrocardiographic signal in all cases, two finger electrodes 305f are exposed so that two fingers are in contact with the left side surface of the electrocardiographic device 300, and one chest electrode 305c is exposed on the opposite right side surface, and the finger electrodes and the chest electrode are formed integrally with the electrocardiographic device as dry electrodes without gel.

Fig. 2 is a block diagram of an electrocardiographic measuring device using a low-power long-distance communication network according to the present invention.

In studying the structure of the block diagram shown in fig. 2, a single-channel electrocardiogram signal is measured by the user 350 from the electrodes 305f, 305c for measuring an electrocardiogram signal. The electrocardiographic signals measured from the electrocardiographic electrodes 305f, 305c are amplified to the extent that the signals are not saturated by removing signal components including power supply noise which do not need to be analyzed by the electrocardiographic signal detecting section 400. Thus, the electrocardiogram signal subjected to the analog signal processing is input to the analog input terminal of the analog-to-digital conversion unit 451 provided in the control unit 450, converted into a digital signal, and stored in the random access memory 455. The electrocardiogram signal stored in the ram 455 passes through a Digital Signal Processor (DSP)453 by an analysis program stored in the rom 457, and the analysis result is displayed on the display unit 111 and stored in the flash memory 459. The stored electrocardiogram signal and analysis result value are transmitted to a short-range wireless network 470 such as a PC or a communication terminal device via an interface unit 150 such as a long-range communication network 107.

The present invention shows a circuit diagram for setting a positive voltage power supply and a reference voltage for driving a battery backflow prevention circuit for an electrocardiogram measuring apparatus using a low power consumption long distance communication network.

When the structure of the displayed circuit diagram is studied, the structure is composed of: a battery backflow prevention circuit 11 for preventing the electronic components constituting the electrocardiogram signal detection unit (400 in fig. 2) and the control unit (450 in fig. 2) from being damaged when a reverse current flows into the electrocardiogram measuring apparatus 300 of the present invention; a positive voltage conversion circuit 13 for supplying a stable power to the device; and a reference voltage setting circuit 15 for setting the reference voltage of the device by driving with a single power supply.

The battery backflow prevention circuit 11 is a protection circuit for preventing damage to electronic components when a reverse current generated by a reverse polarity of a battery connected to the electrocardiograph device 300 of the present invention or a system error is applied to the electrocardiograph signal detection unit (400 of fig. 2) and the control unit (450 of fig. 2) when a power source is connected to the electrocardiograph device. The reverse current prevention circuit 11 prevents damage to electronic components constituting the electrocardiogram signal detection unit (400 in fig. 2) and the control unit (450 in fig. 2) by cutting off the power supply to the circuit when a reverse current flows in the electrocardiogram measuring apparatus 300 using a transistor.

The positive voltage converting circuit 13 supplies dc power, which is always the same as the minimum power, to circuits such as the electrocardiogram signal detecting unit (400 of fig. 2) and the control unit (450 of fig. 2) as compared with a case where the power supplied from the battery does not operate stably due to thermal noise or impact. The electrocardiogram measuring apparatus 300 of the present invention drives electronic components such as an electrocardiogram signal detecting unit (400 in fig. 2) and a control unit (450 in fig. 2) by using the power converted by the positive voltage converting circuit 13, thereby selecting the electronic components and configuring the circuit based on the consumption current of the electronic components used therein and the minimum driving power.

In the reference voltage setting circuit 15, all of the analog input signals received by the control unit (450 in fig. 2) are single power supply signals, all of the measured electrocardiogram signals show positive power supply components, and the voltage level is based on the 0V point, and the signal of the (-) component may be removed, so that the reference level of the measured signal is increased to a certain voltage level or higher, and the removed signal is not generated. The electrocardiogram sensor units 305f and 305c and the electrocardiogram signal detection unit (400 in fig. 2) are low power consumption type, and the reference voltage of the circuit is simply set by using an operational amplifier. The reference voltage setting is set by the ratio of the resistances (R1: R3) combined with the (+) input of the operational amplifier.

In the present invention, a circuit diagram of an electrocardiogram signal detection unit which performs analog signal processing on electrocardiogram signals measured from the chest and finger electrodes 305f, 305c used in the electrocardiogram measuring apparatus 300 is shown, and when the configuration of the circuit diagram is examined, the electrocardiogram signals are signals displayed by converting the action potentials inside the heart measured by the three electrodes 305f, 305c into voltages, and the three electrodes respectively indicate (+) polarity, (-) polarity, and Ground (Ground). The Ground (Ground) provides a reference point for a signal corresponding to an output value, and the electrocardiogram signal measured from the (+) electrode and the (-) electrode is subjected to a difference amplifier 41 having a high Common Mode Rejection Ratio (CMRR) for removing noise of an image component flowing through the human body to remove noise corresponding to an image, thereby amplifying a potential difference between the (+) electrode and the (-) electrode. A high-pass filter 43 with a cutoff frequency of 1Hz is used for cutting off low-band noise of 1Hz or less for the initially amplified signal; in order to cut off high-frequency band noise of 30Hz or more, a 4-medium low-pass filter 45 with a cut-off frequency of 30Hz is used; and removing noise that does not need to be analyzed using a notch filter (47) for removing noise generated by a common frequency (50/60Hz) flowing in through the electrodes. The noise-removed signal is amplified by the inverting amplifier circuit 49 for the second time to a level not less than the saturation level of the supplied power, and then input to the analog input terminal of the analog-to-digital converter (451 in fig. 2) of the control unit (450 in fig. 2) to be converted into a digital signal.

Fig. 3 is a circuit diagram showing a control unit 450 including the

input units

101, 103, and 105, the state display unit 107, and the display unit 111 of the electrocardiogram measuring apparatus 300 of the present invention.

In the case of studying the circuit diagram shown in fig. 3, the electrocardiogram measuring apparatus of the present invention comprises: a power button 101 used when power is applied to the apparatus;

operation buttons

103, 105 for driving the operation device; a status display LED107 for displaying the status of the driving device; a display unit 111 for displaying the electrocardiogram signal measured by the present invention and the analysis result; an interface terminal 150 for connecting the stored electrocardiogram signal and analysis result to a short-range wireless network 470, such as a long-range communication network 107; and a control unit 450 for performing digital conversion and analysis of the signal measured by the electrocardiogram signal detection unit.

When the circuit diagram shown in fig. 3 is studied, the electrocardiographic measurement device 300 of the present invention stores data and a program by the control unit 450 and performs signal processing.

The device is driven by a power button 101 used when power is applied to the electrocardiographic measuring device of the present invention, and the state of the device is displayed by

LEDs

103 and 105 for displaying the state of the power, the data transmission state, and the like of the device.

The electrocardiogram measuring apparatus of the present invention is controlled by a microcontroller chip having a random access memory (455 in fig. 2) for storing data and analysis results collected from the electrocardiogram measuring apparatus and a read only memory (457 in fig. 2) for storing an analysis program.

The control unit 450 acquires the electrocardiogram signal output from the electrocardiogram sensor from the electrocardiogram signal detection unit, performs digital conversion on the acquired electrocardiogram signal, and stores the converted electrocardiogram signal in the random access memory (455 in fig. 2) of the control unit 450. The electrocardiogram signal stored in the random access memory (455 in fig. 2) is analyzed by the analysis program stored in the read-only memory (457 in fig. 2), and the result is displayed on the display unit 111 and stored in the flash memory 459. The stored electrocardiogram signal and analysis result value can be transmitted to the short-range wireless network 470 such as a PC or a communication terminal device using the interface unit 150 such as the long-range communication network 107 with respect to the measured electrocardiogram signal.

The data processing input to the control unit 450 can be performed by itself, but expanding the data storage requires a memory map for connecting the display LCD. For memory mapping, address/data bus is used, AVR is address (16 bytes)/data (8 bytes), and frames such as base address and data are used, so that data and address are separated by latch 73. When the chip select signal is generated to map the data memory and the LCD, the decoder 75 generates a signal for this purpose.

Fig. 4 is a flowchart showing a measuring and analyzing method of the electrocardiographic measuring device 300 of the present invention. In the case of examining the flowchart shown in fig. 4, when the electrocardiogram signal measurement apparatus 300 of the present invention is used to bring the electrodes into contact with the finger and the chest and start measurement of the electrocardiogram signal (F1), the values operated by the power button 101, the menu selection button 103, and the menu search button 105 are applied (F3) by the external input (103, 105 of fig. 2) of the control unit (450 of fig. 2), and the analog signal processing process of the electrocardiogram signal is executed (F7). The electrocardiogram signal subjected to the analog signal processing is input to the analog input terminal of the analog-to-digital conversion unit (451 in fig. 2) of the control unit (450 in fig. 2) and converted into a digital signal (F9).

The electrocardiogram signal converted into the digital signal is applied to a digital low-pass filter, and after passing through digital signal processing including trend removal ((F11), the electrocardiogram signal is displayed (F12), and when the detection of the electrocardiogram signal within a certain time is completed, the electrocardiogram signal is analyzed.

In the digital signal processing (F11), differentiation is performed in order to occupy a portion where the electrocardiogram signal shows extremely varied after the signal having passed through the low-pass filter is applied to the high-pass filter again. The magnitude of the differentiated signal is weak and is raised to the power of all data points, thereby highlighting the portion corresponding to the R point. Thereafter, in the case of performing moving averaging, a portion of one cycle of the electrocardiogram signal is roughly displayed.

In order to detect a characteristic point (F13) from a signal having passed through the series of processes, an appropriate proximity value is set, and when a highest point of a portion larger than the proximity value is found, the point is an R point of an electrocardiogram signal, and data of a raw electrocardiogram signal corresponding to the highest point is checked to find the R point.

After the R point is searched, a fixed interval is set before and after the R point is set as a reference, and when a portion crossing the zero point is detected by performing differentiation, the zero point crossing portion before the R point is the Q point, and the zero point crossing portion after the R point is the S point.

In the case where Q, R, S is finally found from the electrocardiogram signal detected by this process, the variation values of the regularity of the tachy-pulse, the brady-pulse, the rhythm are calculated based on the comparison thereof with the pulse rate per minute, the R-R interval, the QS interval (F15). The pulse rate per minute is calculated based on the R-R interval of the measured electrocardiogram signal, and if the pulse rate per minute exceeds 100 times, it is determined as rapid pulse, and if the pulse rate per minute is less than 50 times, it is determined as slow pulse. In order to judge regularity of the rhythm, the degree of deviation of each of the R-R interval and the QS interval from the average value is calculated in percentage based on the average value of the R-R interval and the average value of the QS interval in a predetermined period of time at the beginning to judge regularity of the rhythm, the result is displayed (F16), and a series of processes is ended (F17).

Fig. 5 shows an example of a waveform outputted after an electrocardiographic signal measured and stored by the electrocardiographic measuring device 300 of the present invention is connected to the short-distance wireless network 470 and transmitted, and the waveform is directly printed without changing the display of the basic information of the user and the waveform of the original electrocardiographic signal measured, and a clinical specialist directly confirms the waveform and makes an accurate diagnosis.

The foregoing detailed description is provided to illustrate the invention.

The above description is intended to show preferred embodiments of the present invention, and the present invention is applicable to various combinations, modifications, and environments. That is, changes and modifications can be made within the scope of the inventive concept disclosed in the present specification, the scope equivalent to the above disclosure, and/or the scope of the skill or knowledge in other fields. The above-described embodiments are the most preferable states for realizing the technical idea of the present invention, and various modifications required in the specific application fields and applications of the present invention can be made. Accordingly, the detailed description of the invention set forth above is not intended to limit the invention by the disclosed embodiments. Moreover, the scope of the claims should also be construed to include other embodiments.

Claims

1. An electrocardiographic measuring apparatus using a low-power consumption long-distance communication network, which is an electrocardiographic measuring and storing apparatus for detecting an electrocardiographic signal by bringing an electrode attached to a portable device into contact with a finger and a chest of a user, comprising:

an electrocardiogram sensor part which detects an electrocardiogram through two electrodes in contact with fingers of a user and one electrode in contact with a chest;

an electrocardiogram signal detection unit for performing analog signal processing on the single-channel electrocardiogram signal detected by the electrocardiogram sensor unit;

a control unit for converting the single-channel electrocardiogram signal from the electrocardiogram signal detection unit into a digital signal and storing the digital signal, extracting feature points from the single-channel electrocardiogram signal by calculation using a stored analysis program, determining rhythm irregularity from the extracted feature points, and controlling the stored electrocardiogram signal to be transmitted via a short-distance wireless network;

and a display unit (111) for displaying the waveform of the electrocardiogram in real time under the control of the control unit.

2. The electrocardiographic measuring apparatus using a low-power consumption long-distance communication network according to claim 1,

two finger electrodes (305f) are exposed from the electrocardiograph sensor portion so as to contact two fingers on one side of the outside of the electrocardiograph apparatus, and one chest electrode (305c) is exposed on the other side,

the finger electrodes and the chest electrodes are integrally formed in the electrocardiographic measurement device as dry electrodes that do not require a gel.

3. The electrocardiographic measuring apparatus using a low-power consumption long-distance communication network according to claim 1,

the analog signal processing of the electrocardiogram signal detection unit detects only signals required for power noise and electrocardiogram signal analysis among the electrocardiogram signals measured by the electrocardiogram sensor unit, and then amplifies the signals to the extent that the signals are not saturated.

4. The electrocardiographic measuring apparatus using a low-power consumption long-distance communication network according to claim 1,

the control unit (450) includes:

an analog-to-digital conversion section that converts the analog electrocardiogram signal detected by the electrocardiogram signal detection section into a digital signal;

a random access memory for storing the digital electrocardiogram signal of the analog-to-digital conversion part;

a digital signal processing unit which calculates the digital electrocardiogram signal stored in the random access memory by an analysis program stored in a read only memory, extracts feature points from the electrocardiogram signal, and determines rhythm irregularity from the extracted feature points;

a touch screen for storing the analysis result value of the digital signal processing part; and

an interface unit (150) for transmitting the electrocardiogram signal stored in the random access memory and the analysis result value stored in the touch panel via a short-distance wireless network.

5. The electrocardiographic measuring apparatus using the low-power consumption long-distance communication network according to claim 4,

the interface unit transmits the electrocardiographic measurement data and analysis result values stored in the ram and the touch panel to a PC or a mobile communication terminal device connected by wire or wirelessly using a long-distance communication network or a bluetooth protocol.

6. The electrocardiographic measuring apparatus using a low-power consumption long-distance communication network according to claim 5,

and printing and outputting the electrocardiogram waveform signal through a printer connected with the interface part.

7. The electrocardiographic measuring apparatus using a low-power consumption long-distance communication network according to claim 1,

the electrocardiogram waveform measured by the control of the control part is displayed on a display part in real time within a set time, and the measured electrocardiogram data is stored in an internal memory, wherein the set time is in a range of 20-300 seconds.

8. The electrocardiographic measuring apparatus using a low-power consumption long-distance communication network according to claim 1, further comprising:

a plurality of menu search buttons which are attached to the control unit and selected by the user to search for a menu; and

and a menu selection button through which the user selects a menu to search.

9. The electrocardiographic measuring apparatus using the low-power consumption long-distance communication network according to any one of claims 1 and 4 to 8,

the display unit displays the electrocardiogram waveform calculated by the control unit, extracts feature points from the electrocardiogram signal converted into a digital signal, discriminates and displays a result of determination of irregularity in electrocardiogram rhythm using the feature points, displays operation states of a menu search button and a menu selection button of a user, and displays a data transfer state through the interface unit.

10. An electrocardiogram measuring apparatus using a low power consumption long distance communication network, which relates to an electrocardiogram measuring method for measuring and analyzing an electrocardiogram signal from a finger and a chest of a user through a finger and a chest electrode of the electrocardiogram measuring apparatus installed in the low power consumption long distance communication network and displaying the electrocardiogram signal on a display part, the method is characterized by comprising the following steps:

measuring an electrocardiogram signal from a finger and a chest in contact with a finger electrode and a chest electrode provided in an electrocardiogram measuring apparatus;

applying the selected value by an external input of the control section according to a user operation of an external input key;

performing analog signal processing on the measured analog electrocardiogram signal, and converting the analog electrocardiogram signal into a digital signal and inputting the digital signal into the control unit;

applying a digital low-pass filter to the electrocardiogram signal converted into the digital signal, and displaying the processed digital signal including the trend of removal;

performing an analysis of the electrocardiogram signal in case the detection of the electrocardiogram signal within the predetermined time is completed;

displaying the results of the analysis.

11. The electrocardiographic measuring apparatus using the low-power consumption long-distance communication network according to claim 10,

the step of performing an analysis of the electrocardiogram signal comprises the steps of:

differentiating the electrocardiogram signal so as to occupy a portion where the electrocardiogram signal shows a sharp change, and emphasizing a portion corresponding to the R point by multiplying all data points by the magnitude of the differentiated signal;

performing a moving average for a portion of one cycle of the electrocardiogram signal;

setting an appropriate proximity value for detecting a feature point in the electrocardiogram signal, and searching for an R point by confirming data of an original electrocardiogram signal corresponding to a highest point of the electrocardiogram signal when searching for the highest point of a portion larger than the proximity value;

in the case where a certain section is set based on the front and rear of the R point after the R point is found, and differentiation is performed to detect a zero-crossing portion, the zero-crossing portion before the R point is determined as the O point, and the zero-crossing portion after the R point is determined as the S point;

when the final Q, R, S point is found from the electrocardiogram signal detected by the above steps, the variation values of the regularity of tachy-pulse, brady-pulse, rhythm are calculated based on the comparison of the pulse rate per minute, the R-R interval, and the QS interval.

12. The electrocardiographic measuring apparatus using the low-power consumption long-distance communication network according to claim 11,

the pulse rate per minute is calculated based on the R-R interval of the measured electrocardiogram signal, and is determined as rapid pulse when the pulse rate per minute is more than 100 times, and is determined as slow pulse when the final pulse rate per minute is less than 50 times,

the judgment of the regularity of the rhythm is based on the average value of the R-R intervals and the average value of the QS intervals in a certain period at the initial stage, and the degree of deviation of each of the R-R intervals and the QS intervals from the average values is calculated in percentage, thereby judging the irregularity of the rhythm.