JP2008167933A - State monitoring device and information processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a state monitoring device capable of presenting appropriate information for a subject when the subject gets exercise for relieving such symptoms as obesity or stress characteristic to the present day. <P>SOLUTION: The state monitoring device comprises a body moisture quantity calculating means for calculating the quantity of body moisture of the subject between two electrodes based on electric signals measured by applying voltage between the two electrodes which can be attached to the subject; a pulse rate calculating means for calculating the pulse rate based on the electric signals; a fluctuation degree calculating means for calculating the degree of fluctuation of the heart beat of the subject by extracting the heartbeat interval per beat of the subject and analyzing the time zone based on the electric signal; a consumed calorie calculating means for calculating the calorie consumed by the subject based on the pulse rate; and a display means for displaying the calculated quantity of body moisture, degree of fluctuation, and consumed calorie. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a state monitoring device that monitors the state of a person under measurement during exercise.

2. Description of the Related Art Conventionally, a system for monitoring the state of a person being measured during exercise is known (see, for example, JP-A-2005-334021). According to the publication, the measurement subject's blood pressure, pulse, body temperature, body water content, etc. are measured using the mobile terminal device, so that the patient's exercise accident (for example, heat stroke etc.) Can be prevented in advance.
JP-A-2005-334021

  However, the portable terminal device described in Patent Document 1 is configured only for the purpose of preventing accidents during exercise. For this reason, it becomes important for the configuration of the apparatus that the person to be measured is quickly detected and notified to the person to be measured when the person is in a state leading to an accident.

  On the other hand, in recent years, many middle-aged and elderly people have suffered from symptoms peculiar to the present age such as obesity and stress, and often exercise for the purpose of resolving them. In other words, it is important that stress is released by exercise and obesity can be resolved. For this reason, attention has been focused on how much calories were consumed by exercise, how much sweat could be sweated, or whether stress could actually be eliminated by exercise.

  Therefore, as in the past, simply measuring blood pressure, pulse, body water content, etc., and giving a warning, the information relevant to the above purpose will be presented appropriately, not meeting the needs of the subject. Is desirable.

  The present invention has been made in view of the above problems, and is a state monitor capable of presenting appropriate information to a measurement subject when exercising for the purpose of resolving symptoms peculiar to modern times such as obesity and stress. An object is to provide an apparatus.

In order to achieve the above object, a state monitoring apparatus according to the present invention has the following configuration. That is,
An acquisition means for acquiring an electrical signal measured by applying a voltage between two electrodes that can be attached to the subject;
A body moisture amount calculating means for calculating the body moisture content of the subject by calculating the impedance of the subject between the electrodes from the acquired electrical signal;
A heart rate calculating means for calculating a heart rate per unit time of the measured person from the acquired electrical signal;
By extracting a heartbeat interval for each beat of the measured person from the acquired electrical signal and performing time domain analysis or frequency analysis based on the extracted heartbeat interval, A fluctuation degree calculating means for calculating the fluctuation degree;
Calorie consumption calculating means for calculating calorie consumption of the subject based on the heart rate calculated by the heart rate calculating means;
Display means for displaying the calculated body moisture content, the degree of fluctuation, and the calorie consumption;

  ADVANTAGE OF THE INVENTION According to this invention, when exercising for the purpose of eliminating the symptoms peculiar to the present age such as obesity and stress, it is possible to provide a state monitoring device capable of presenting appropriate information to the measurement subject. .

  In each of the following embodiments, the configuration is such that the degree of stress of the measurement subject is detected and displayed by detecting and analyzing biological information related to the measurement subject's stress.

  In the following embodiment, biological information relating to heartbeat such as an electrocardiogram waveform and a pulse is detected as biological information related to the stress of the measurement subject. As for the stress state, “heart rate fluctuation” calculated by using the geometric figure analysis method of time domain analysis based on the detected biological information on the heart rate is displayed as an index.

In each of the following embodiments, Lorentz plot is adopted as one of the geometric figure analysis methods of time domain analysis, but the time domain analysis method is not particularly limited to this. As an index of heartbeat fluctuation, a triangle index, which is another geometric figure analysis method of time domain analysis, SDNN, SDANN, r-MSSD, RR50 (NN50), pNN50 (φ ₀ NN50), which is a time / domain analysis, CVRR or the like may be adopted.

  In each of the following embodiments, the body water content is detected and displayed as biological information related to the amount of sweat of the measurement subject. Furthermore, the heart rate is detected as biometric information related to the calorie consumption consumed by the subject during exercise, and the calorie consumption is calculated based on the detected heart rate and displayed. Thereby, the information suitable for the purpose of the person to be measured can be provided.

  In each of the following embodiments, all of these pieces of information are calculated based on an electric signal measured by applying a voltage between two electrodes attached to the measurement subject. In other words, when presenting these pieces of information, the person to be measured only needs to attach two electrodes, and there is an advantage that the measurement can be performed in real time during the exercise and the display can be seen.

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

[First Embodiment]
1. Overview of Lorentz plot First, the Lorentz plot as an index representing heartbeat fluctuation will be briefly described. The Lorentz plot is known as a method for evaluating the enhanced state of the sympathetic nerve and the parasympathetic nerve. In general, it is important that the sympathetic nerve and the parasympathetic nerve are balanced. If the balance between the sympathetic nerve and the parasympathetic nerve is disturbed due to stress, the fluctuation of the heart rate is affected.

  The Lorentz plot is a visualization of the fluctuation of the heartbeat based on biological information related to the heartbeat such as an electrocardiogram waveform and a pulse.

  12 and 13 are diagrams showing a method of generating a Lorentz plot based on an electrocardiographic waveform. When an electrocardiogram waveform as indicated by 1201 in FIG. 12 is collected, the position of the R wave is first identified, and the RR interval is calculated. The R wave refers to the peak portion of the electrocardiogram waveform, and the RR interval refers to the heartbeat interval of the nth beat (n is an arbitrary integer) and the n + 1th beat of the R wave. In the example of FIG. 12, the R wave positions are identified as R1, R2, R3, and R4, respectively, and the RR intervals are calculated as T21, T32, and T43, respectively.

  Then, based on the calculated RR interval, T21 is plotted on the horizontal axis and T32 is plotted on the vertical axis in the two-dimensional graph region shown in FIG. Further, T32 is plotted on the horizontal axis and T43 is plotted on the vertical axis. A Lorentz plot is generated by sequentially performing such processing for successive RR intervals (position coordinates in the two-dimensional graph area of each plot at this time are referred to as Lorentz plot data).

  For reference, FIG. 14 shows an example of the generated Lorentz plot. (A) generally shows a good balanced state, (b) and (c) show an unbalanced state ((b) shows stress / disease patterns, (c) shows Each showing an arrhythmia pattern).

2. Configuration of Status Monitoring Device Next, a schematic configuration of the status monitoring device according to the present embodiment will be described with reference to FIG.

  FIG. 1 is a diagram illustrating a state in which the state monitoring apparatus according to the present embodiment is mounted on a person 100 to be measured. In the figure, reference numeral 101 denotes a main body, which has a wristwatch-like shape, and is attached to the wrist portion of the person 100 to be measured. Reference numeral 102 denotes an electrode portion, in which an electrode is embedded in a part of the belt body, and by applying a voltage between the electrodes (not shown) embedded in the main body portion 101 (see arrow 107), The impedance between them can be measured. Based on the measured impedance, the main body 101 calculates the body water content of the person 100 to be measured between the electrodes. Moreover, the time change of the impedance between these electrodes can be measured by applying a voltage between these electrodes. Thereby, the electrocardiogram waveform of the person being measured 100 can also be obtained. The main body 101 calculates a heart rate based on the electrocardiogram waveform, calculates calorie consumption, calculates Lorentz plot data, and calculates a heart rate fluctuation degree.

  The main body portion 101 and the electrode portion 102 are electrically connected by a wire 103, and the wire 103 is provided with strips 104, 105, 106 for fixing the wire 103 to the measurement subject 100. ing.

3. Configuration of main body 101 and electrode 102
3.1 Appearance Configuration of Main Body 101 and Electrode 102 FIG. 2 is a diagram showing an external configuration of the main body 101 of the state monitoring apparatus. In the same figure, (a) is the figure which looked at the main-body part 101 from the front side, (b) is the figure which looked at the main-body part 101 from the back side. (C) is a view of the electrode portion 102 as viewed from the front side, and (d) is a view of the electrode portion 102 as viewed from the back side.

  As shown in FIG. 2A, the main body unit 101 includes a display / operation unit 201 and a band unit 202.

  The band portion 202 is provided with a plurality of mounting adjustment holes 203, and a stopper (not shown) is inserted into the hole 203 of the band portion 202 with the band portion 202 wrapped around the wrist of the measurement subject 100. Thus, the band portion 202 can be attached to the wrist of the person to be measured 100.

  The display / operation unit 201 is provided with a display screen 201-1 and operation buttons 201-3, and the person under measurement 100 presses the operation button 201-3 to start or end measurement. Various instructions can be entered. Further, the person under measurement 100 can grasp his / her state during exercise by looking at the measurement result displayed on the display screen 201-1. Further, the display / operation unit 201 is provided with an audio output unit 201-2, and an alarm is output as necessary.

  Further, as shown in FIG. 2B, an electrode 204 is provided on the back surface of the display / operation unit 201, and the band unit 202 is wound around the wrist of the person 100 to be measured. 204 is configured to press against the wrist of the person 100 to be measured.

  On the other hand, the electrode part 102 is provided with a tape part 205 (FIG. 2C) for wrapping around the ankle of the measurement subject 100, and an electrode 206 (FIG. 2D) is provided on the back surface of the tape part 205. Is provided.

  In addition, the electrode part 102 shall be comprised so that the electrode 206 may press-contact the ankle of the to-be-measured person 100 in the state in which the tape part 205 was wound around the to-be-measured person's ankle. Further, it is assumed that the tape unit 205 is configured such that the back surface of the tape unit 205 and the surface of the tape unit 205 are fixed so that the tape unit 205 can be fixed while being wound around the ankle of the person 100 to be measured.

3.2 Functional Configuration of Main Unit 101 FIG. 3 is a diagram illustrating a functional configuration of the main unit 101 of the state monitoring apparatus. In the figure, reference numeral 301 denotes a clock unit which oscillates a clock signal and supplies it to the CPU 302. A RAM 303 functions as a work area for a program processed by the CPU 302 and also functions as a storage unit that temporarily stores data and the like during program processing. Reference numeral 304 denotes a ROM that stores a program to be processed by the CPU 302.

  Reference numeral 305 denotes a display / operation unit (corresponding to 201 in FIG. 2), which displays a processing result processed by the CPU 302 and accepts an instruction input from the measurement subject.

  Reference numeral 306 denotes an electrode, which corresponds to 204 in FIG. Reference numeral 307 denotes an amplifier that amplifies the electric signal output from the electrode 306 and converts it into a digital signal (hereinafter referred to as measurement data).

  Reference numeral 308 denotes an energization unit that applies a voltage to the electrode 206 via the wiring 103. Reference numeral 309 denotes an amplifier that converts control data from the CPU 302 into an electric signal, amplifies it, and outputs it to the energization unit 308.

  Reference numeral 310 denotes an audio output unit (corresponding to 201-2 in FIG. 2), which outputs an alarm according to the processing result in the CPU 302. Reference numeral 311 denotes an amplifier that converts the alarm data transmitted from the CPU 302 into an electrical signal, amplifies it, and outputs it to the audio output unit 310.

  Functions 321 to 328 are realized by the program stored in the ROM 304. A measurement data detection processing unit 321 receives the measurement data output from the amplifier 307. Reference numeral 322 denotes a heartbeat interval detection processing unit, which identifies an R wave of an electrocardiographic waveform based on received measurement data, calculates each RR interval, and calculates Lorentz plot data (Lorentz plot in a two-dimensional graph region). Coordinate data for display). Also, a heart rate per predetermined time, for example, one minute is calculated.

  Reference numeral 323 denotes a fluctuation degree calculation unit that calculates the fluctuation degree based on the generated Lorentz plot data. Note that the degree of fluctuation refers to the size of the distribution region in the two-dimensional graph region (in this embodiment, variation in Lorentz plot data).

  Reference numeral 324 denotes a calorie calculation unit, which calculates a cumulative value of calorie consumption since the start of measurement based on the heart rate per predetermined time calculated by the heartbeat interval detection processing unit 322.

  Reference numeral 325 denotes a body water content calculation unit, which calculates the body water content of the subject 100 by calculating the impedance of the subject 100 between the electrodes 204 and 206 from the measurement data received by the measurement data detection processing unit 321. calculate. In addition, since the calculation method of such a body water content is called a bioelectrical impedance method (BIA method) and is a generally known calculation method, detailed description is abbreviate | omitted here.

  Reference numeral 326 denotes a display processing unit which controls to display a Lorentz plot on the display / operation unit 305 based on Lorentz plot data generated by the heartbeat interval detection processing unit 322 during measurement. Further, in accordance with the timing of the R wave of the electrocardiogram waveform, the heart rate detection mark (described later) displayed with characters, symbols, symbol marks, and the like is blinked and the heart rate is displayed. When the measurement is completed, control is performed to display (or update) the calculated degree of fluctuation, calorie consumption, and body water content.

  Reference numeral 327 denotes an audio output processing unit for the heart rate calculated by the heartbeat interval detection processing unit 322, the fluctuation level calculated by the fluctuation level calculation unit 323, and the body water content calculated by the body water content calculation unit 325, respectively. Control is performed so as to output an alarm as necessary in comparison with a predetermined threshold.

  Reference numeral 328 denotes an energization control unit, which outputs control data to the amplifier 309 so that a voltage is applied between the electrodes 204 and 206 when the measurement subject is instructed to start measurement. Control.

4). Configuration of Display / Operation Unit 305 FIG. 4 is a diagram showing a screen example of the display / operation unit 305 (in addition to a liquid crystal screen, a highly visible organic EL or the like may be used as the screen). Reference numeral 401 denotes a data display unit, and the display processing unit 326 displays various data. In the example of FIG. 4, a screen for displaying a Lorentz plot (Lorentz plot display screen) is shown, and the units of the horizontal axis and the vertical axis are msec (the display screen includes other calculated fluctuations). There is a bar graph display screen that displays the degree, body water content, and calories burned in a bar graph (details will be described later).

  Reference numeral 402 denotes a measurement start / end button. The measurement starts when the measurement subject 100 presses the measurement start / end button 402 once, and the measurement is ended by pressing again.

  Reference numeral 403 denotes a display mode selection button for switching between a Lorentz plot display mode for displaying a Lorentz plot display screen, which will be described later, and a bar graph display mode for displaying a bar graph display screen.

  Reference numeral 404 denotes a power button. When the measurement subject 100 presses the power button 404 once, the power of the state monitoring apparatus is turned on, and when pressed again, the power of the state monitoring apparatus is turned off.

5. Flow diagram 5A of the measurement process in the state monitoring device, FIG. 5B is a flowchart showing a flow of the measurement process in the condition monitoring device. After the power button 404 is pressed and the power of the state display device is turned on, the measurement process is started when the measurement start / end button 402 is pressed once.

  In step S501, it is determined whether the display mode is the Lorentz plot display mode or the bar graph display mode. If it is determined in step S501 that the display mode is the Lorentz plot display mode, the process proceeds to step S502.

  In step S502, a Lorentz plot display screen (see FIG. 4) is displayed on the data display unit 401. In step S503, it is determined whether an instruction to end measurement has been issued. Specifically, it is monitored whether or not the measurement start / end button 402 is pressed again, and when the measurement start / end button 402 is pressed again, it is determined that the measurement end instruction has been issued.

  If it is determined in step S503 that an instruction to end measurement is given, the process proceeds to step S518, a timer for counting a predetermined time described later is reset, and the measurement process is ended.

  On the other hand, if it is determined in step S503 that an instruction to end measurement has not been given, the process proceeds to step S504 to determine whether measurement data has been received.

  In the present embodiment, the electrodes 204 and 206 are in pressure contact with the wrist and ankle of the person 100 to be measured. However, since the person 100 to be measured performs exercise, either the electrode 204 or 206 is used. May move away from the wrist or ankle of the person 100 to be measured. In this case, measurement data cannot be received. Therefore, in step S504, it is monitored whether the measurement data can be normally received until a predetermined time has elapsed.

  If it is determined in step S504 that the measurement data cannot be received, the process proceeds to step S516, and the Lorentz plot on the data display unit 401 is reset.

  In step S517, the timer for counting a predetermined time is reset, and the process returns to step S501. As a result, when the electrodes 204 and 206 are separated from the wrist or ankle of the person 100 to be measured and the measurement data cannot be temporarily received before the predetermined time elapses, the Lorentz plot displayed halfway is displayed. Will be reset. In this case, since the process returns to step S501, the measurement process is automatically restarted.

  On the other hand, if it is determined in step S504 that the measurement data can be received, the process proceeds to step S505, where the heartbeat interval detection processing unit 322 acquires the measurement data received by the measurement data detection processing unit 321. In addition, the body water content calculation unit 325 acquires the measurement data received by the measurement data detection processing unit 321.

  In step S506, the R wave of the electrocardiographic waveform is identified based on the measurement data acquired by the heartbeat interval detection processing unit 322, and the RR interval is calculated. At the same time, in step S515, the body water content of the person 100 to be measured is calculated by calculating the impedance of the person 100 to be measured between the electrodes 204 and 206 from the measurement data acquired by the body water content calculation unit 325. To do. After calculating the body water content, the process proceeds to step S508.

  On the other hand, in step S507, the heartbeat interval detection processing unit 322 calculates Lorentz plot data using the RR interval calculated in step S506, and the display processing unit 326 performs Lorentz plot. In parallel, in step S513, the heart rate interval detection processing unit 322 calculates the heart rate per unit time (for example, per minute) using the RR interval calculated in step S506. Further, the display processing unit 326 blinks the heart rate detection mark on the data display unit 401 in accordance with the identified R wave, and displays the calculated heart rate on the data display unit 401. Thereby, after starting measurement, every time measurement data is acquired, the heart rate detection mark blinks and the display of the heart rate is updated.

  Further, in step S514, the calorie calculation unit 324 calculates calorie consumption based on the heart rate calculated in step S512. After calculating the calorie consumption, the process proceeds to step S508.

  In step S508, it is determined whether or not a predetermined time has elapsed since the timer was started. If the predetermined time has not elapsed, the process returns to step S501.

  FIG. 6 is a diagram illustrating an example of a Lorentz plot display screen of the data display unit 401 before a predetermined time has elapsed. In the figure, 601 is a heart rate detection mark, and 602 is a heart rate display column. Reference numeral 603 denotes a field for displaying the current date and time. Further, reference numeral 604 denotes a Lorentz plot, and reference numeral 605 denotes a calculation result display field for displaying the calculated degree of fluctuation, body water content, and calorie consumption.

  Until a predetermined time elapses, a predetermined display (segment display or the like, countdown display or countup display) is performed at an arbitrary position on the data display unit 401, and pets, children, landscapes, characters, etc. are arbitrarily set It is also possible to perform screen display so as to select and sequentially complete an image or the like.

  Returning to FIG. 5A. If it is determined in step S508 that the predetermined time has elapsed, the timer count is stopped and reset in step S509.

  Further, in step S510, the degree of fluctuation is calculated using the Lorentz plot data calculated within a predetermined time, and displayed in the calculation result display field 605. Preferably, a line indicating the Lorentz plot data distribution area is further calculated and displayed.

  Moreover, the average value of the body water content calculated within the predetermined time is calculated and displayed in the calculation result display field 605 (if already displayed, it is updated with the newly calculated body water content value). . Further, the cumulative value of calorie consumption calculated within a predetermined time is calculated and displayed in the calculation result display field 605 (if already displayed, the newly calculated cumulative value of calorie consumption is added and displayed. To do).

  FIG. 7 is a diagram illustrating an example of a Lorentz plot display screen of the data display unit 401 when a predetermined time has elapsed. In the figure, reference numeral 701 denotes a line indicating the Lorentz plot data distribution region. 702 to 704 are the calculated fluctuation degree, body water content, and calorie consumption.

  Furthermore, in step S511, the displayed fluctuation degree, body water content, and average heart rate within a predetermined time are respectively compared with predetermined threshold values. As a result of the comparison, when the degree of fluctuation is smaller than a predetermined threshold, an alarm is output via the audio output unit 201-2. Similarly, an alarm is also output when the body water content is smaller than a predetermined threshold. Furthermore, an alarm is also output when the heart rate is equal to or greater than a predetermined threshold. When an alarm is output, a warning message is also displayed on the data display unit 401.

  FIG. 8 is a diagram illustrating a state in which a warning message window 801 is displayed when the heart rate is equal to or greater than a predetermined threshold as a result of the process in step S511. By performing such an output, the measurement subject can determine that the exercise load is high and the exercise content is not appropriate.

  Returning to FIG. 5A again. In step S512, when the display shown in FIG. 8 continues for a certain time, the Lorentz plot, the line indicating the distribution area, and the warning message window 801 are reset, and the process returns to step S501 (other displays remain as they are).

  On the other hand, if it is determined in step S501 that the display mode is the bar graph display mode, the process proceeds to step S521.

  In step S521, a bar graph display screen is displayed on the data display unit 401. In step S522, the measurement start / end button 402 is pressed again to determine whether or not a measurement end instruction has been issued.

  If it is determined in step S522 that an instruction to end measurement has been given, the process proceeds to step S534, the timer is reset, and the measurement process ends. On the other hand, if it is determined in step S522 that the measurement end instruction has not been given, the process proceeds to step S523 to determine whether or not measurement data has been received.

  As described above, in the present embodiment, the electrodes 204 and 206 are in pressure contact with the wrist and ankle of the person 100 to be measured. However, since the person 100 to be measured performs exercise, the electrodes 204 or 206 are used. May be separated from the wrist or ankle of the person 100 to be measured. In this case, measurement data cannot be received. Therefore, in step S523, it is monitored whether or not measurement data can be normally received until a predetermined time elapses.

  In step S523, if it is determined that the measurement data cannot be received, the process proceeds to step S534, and reception is performed after it is determined that the measurement data cannot be received after the start of counting for a predetermined time. After deleting the measured data and resetting the timer in step S535, the process returns to step S501 in FIG. 5A. Thus, even when the electrodes 204 and 206 are separated from the wrist or ankle of the person 100 to be measured and the measurement data cannot be temporarily received before the predetermined time elapses, the measurement process is automatically resumed. It will be.

  On the other hand, if it is determined in step S523 that the measurement data can be received, the process proceeds to step S524, where the heartbeat interval detection processing unit 322 acquires the measurement data received by the measurement data detection processing unit 321.

  In step S525, the R wave of the electrocardiographic waveform is identified based on the measurement data acquired by the heartbeat interval detection processing unit 322, and the RR interval is calculated. At the same time, in step S532, the body water content of the person 100 to be measured is calculated by calculating the impedance of the person 100 to be measured between the electrodes 204 and 206 from the measurement data acquired by the body water content calculation unit 325. To do. After calculating the body water content, the process proceeds to step S527.

  On the other hand, in step S526, the heartbeat interval detection processing unit 322 calculates Lorentz plot data based on the RR interval calculated in step S525. In parallel, the heart rate interval detection processing unit 322 calculates the heart rate per unit time (for example, one minute) based on the RR interval calculated in step S525, and the display processing unit 326 displays the heart rate. . Further, the display processing unit 326 blinks the heart rate detection mark on the data display unit 401 in accordance with the identified R wave, and displays the calculated heart rate on the data display unit 401. Thereby, after starting measurement, every time measurement data is acquired, the heart rate detection mark blinks and the display of the heart rate is updated.

  Further, in step S532, the calorie calculation unit 324 calculates calorie consumption based on the heart rate calculated in step S531. After calculating the calorie consumption, the process proceeds to step S527.

  In step S527, it is determined whether or not a predetermined time has elapsed since the timer was started. If the predetermined time has not elapsed, the process returns to step S501.

  On the other hand, if it is determined in step S527 that the predetermined time has elapsed, the process proceeds to step S528 to stop and reset the timer.

  Further, in step S529, the degree of fluctuation is calculated using Lorentz plot data calculated within a predetermined time, and is displayed as a bar graph.

  Moreover, the average value of the body water content calculated within the predetermined time is calculated and displayed as a bar graph (if there is already a bar graph display, the bar graph is updated with the newly calculated body water content). . Further, the cumulative value of calorie consumption calculated within a predetermined time is calculated and displayed as a bar graph (if there is already a bar graph display, the newly calculated cumulative value of calorie consumption is added to Graph display).

  FIG. 9 is a diagram illustrating an example of a bar graph display screen of the data display unit 401 after a predetermined time has elapsed. In the figure, 901 is a bar graph of fluctuation degree, 902 is a bar graph of body water content, and 903 is a bar graph of calorie consumption.

  The bar graphs 901 to 903 are updated every time a predetermined time elapses. When there is a state in which measurement data cannot be received after the predetermined time elapses after the timer starts counting. The bar graph is not updated, and the current display is maintained until the next predetermined time elapses.

  After all the bar graphs are displayed (updated) in step S528, the process proceeds to step S530. In step S530, the calculated degree of fluctuation, body water content, and average heart rate within a predetermined time are respectively compared with a predetermined threshold. As a result of the comparison, when the degree of fluctuation is smaller than a predetermined threshold, an alarm is output via the audio output unit 201-2. Similarly, an alarm is also output when the body water content is smaller than a predetermined threshold. Furthermore, an alarm is also output when the heart rate is greater than a predetermined threshold. When an alarm is output, the color of the corresponding bar graph on the data display unit 401 is also changed, and the subject 100 is alerted.

  FIG. 10 shows a state in which the color of the bar graph 1002 representing the body water content has changed when the body water content is smaller than a predetermined threshold value. As a result, the person under measurement 100 can recognize that sweating has progressed due to exercise and that the body water content is smaller than a predetermined threshold.

  As is clear from the above description, in the state monitoring device according to the present embodiment, the heartbeat fluctuation level related to the stress state, the body water amount related to the sweating amount, and the calorie consumption related to the diet are calculated. It is possible to calculate and display each.

  That is, when exercising for the purpose of eliminating symptoms peculiar to the present age such as obesity and stress, it is possible to provide each person with information that is closely related to these symptoms.

  As a result, the person to be measured can grasp how much the stress is eliminated while looking at the state monitoring device during the exercise. It is also possible to grasp how much calories are consumed. In addition, it is possible to grasp how much sweat is applied and the amount of body water has decreased.

  Furthermore, in providing the information, in the case of the state monitoring device according to the present embodiment, it is only necessary to attach a set of electrodes to the body (even if a plurality of measuring devices are not attached). Therefore, there is a merit that convenience is high for the person being measured.

[Second Embodiment]
The first embodiment has been described on the assumption that the state of the person under measurement 100 during exercise is monitored. However, the state monitoring device according to the present invention is not limited to the case where the person under measurement 100 is under exercise. . Needless to say, it is possible to monitor the condition of the person being measured even when he is not exercising.

  For this reason, two measurement modes, an exercise mode and a rest mode, are provided, and the measurement result measured during exercise by the measurement subject 100 selecting one of the measurement modes in advance and starting measurement, You may make it display separately the measurement result measured in the state which is not exercising.

  In this case, the Lorentz plot data calculated in the exercise mode and the Lorentz plot data calculated in the rest mode may be displayed with different marks. FIG. 11 is a diagram illustrating an example when a Lorentz plot measured in the rest mode is displayed. As shown in the figure, the Lorentz plot 1101 is displayed with a mark different from the Lorentz plot measured in the exercise mode.

  In this case, the predetermined threshold value used for the comparison may be switched and set. In other words, the threshold that is set on the assumption that the subject is in an exercise state and the threshold that is set on the assumption that the subject is in a resting state are naturally different. The threshold value may be switched based on whether the measurement mode is the exercise mode or the rest mode.

It is a figure which shows a mode that the to-be-measured person 100 was mounted | worn with the state monitoring apparatus concerning one Embodiment of this invention. . It is a figure which shows schematic structure of the main-body part 101 of a state monitoring apparatus. It is a figure which shows the function structure of the main-body part 101 of a state monitoring apparatus. 6 is a diagram illustrating an example of a screen of a display / operation unit 305. It is a flowchart which shows the flow of the measurement process in a state monitoring apparatus. It is a flowchart which shows the flow of the measurement process in a state monitoring apparatus. It is a figure which shows an example of the Lorentz plot display screen of the data display part 401 before predetermined time progress. It is a figure which shows an example of the Lorentz plot display screen of the data display part 401 at the time of predetermined time progress. It is a figure which shows a mode that the warning message window 801 was displayed when the heart rate exceeded the predetermined threshold value. It is a figure which shows an example of the bar graph display screen of the data display part 401 after progress for predetermined time. It is a figure which shows a mode that the color of the bar graph 1002 showing a body water content changed when the body water content was smaller than a predetermined threshold value. It is a figure which shows an example at the time of displaying the Lorentz plot measured by the rest mode. It is the figure which showed the method of producing | generating a Lorentz plot based on an electrocardiogram waveform. It is the figure which showed the method of producing | generating a Lorentz plot based on an electrocardiogram waveform. It is a figure which shows an example of a Lorenz plot.

Claims (8)

An acquisition means for acquiring an electrical signal measured by applying a voltage between two electrodes that can be attached to the subject;
From the acquired electrical signal, by calculating the impedance of the person to be measured between the electrodes, the body water content calculating means for calculating the body water content of the person to be measured;
A heart rate calculating means for calculating a heart rate per unit time of the measured person from the acquired electrical signal;
A heartbeat interval for each beat of the measured person is extracted from the acquired electrical signal, and a time domain analysis or a frequency analysis is performed based on the extracted heartbeat interval to thereby determine the heartbeat of the measured person. A fluctuation degree calculating means for calculating the fluctuation degree;
Calorie consumption calculating means for calculating the calorie consumption of the subject based on the heart rate calculated by the heart rate calculating means;
A state monitoring apparatus comprising: a display unit that displays the calculated body water content, the degree of fluctuation, and the calorie consumption. An acquisition means for acquiring an electrical signal measured by applying a voltage between two electrodes that can be attached to the subject;
From the acquired electrical signal, by calculating the impedance of the person to be measured between the electrodes, the body water content calculating means for calculating the body water content of the person to be measured;
A heart rate calculating means for calculating a heart rate per unit time of the measured person from the acquired electrical signal;
A heartbeat interval for each beat of the measurement subject is extracted from the acquired electrical signal, and the extracted heartbeat interval of the nth beat and the heartbeat interval of the (n + 1) th beat are expressed in the vertical axis of the two-dimensional graph region. Or, after calculating each coordinate data in the case of sequentially plotting as the horizontal axis, by calculating the variation of the coordinate data, fluctuation degree calculating means for calculating the fluctuation degree of the heartbeat of the measured person,
Calorie consumption calculating means for calculating calorie consumption of the subject based on the heart rate calculated by the heart rate calculating means;
A state monitoring apparatus comprising: a display unit that displays the calculated body water content, the degree of fluctuation, and the calorie consumption. One of the two electrodes can be attached to the wrist portion of the subject by a belt wound around the wrist portion of the subject, and the other electrode is attached to the subject's wrist. The state monitoring device according to claim 1, wherein the state monitoring device can be attached to the ankle portion of the measurement subject by a belt wound around the ankle portion. The state monitoring apparatus according to claim 2, wherein the display unit plots the calculated coordinate data in the two-dimensional graph area. The condition monitoring according to claim 1 or 2, further comprising an output means for outputting an alarm when the calculated body water content and heart rate are each equal to or greater than a predetermined threshold value. apparatus. The state monitoring apparatus according to claim 1, further comprising an output unit that outputs an alarm when the calculated degree of fluctuation is smaller than a predetermined threshold value. An acquisition step of acquiring an electrical signal measured by applying a voltage between two electrodes that can be attached to the subject;
From the acquired electrical signal, by calculating the impedance of the person to be measured between the electrodes, a body moisture amount calculating step for calculating the body moisture content of the person to be measured;
A heart rate calculating step for calculating a heart rate per unit time of the measured person from the acquired electrical signal;
A heartbeat interval for each beat of the measured person is extracted from the acquired electrical signal, and a time domain analysis or a frequency analysis is performed based on the extracted heartbeat interval to thereby determine the heartbeat of the measured person. A fluctuation degree calculating step for calculating the fluctuation degree;
Based on the heart rate calculated by the heart rate calculation step, the calorie consumption calculation step for calculating the calorie consumption of the subject,
A display process for displaying the calculated body moisture content, the degree of fluctuation, and the calorie consumption. A control program for causing a computer to execute the information processing method according to claim 7.

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