JP4681315B2 - Biological information measuring terminal and biological information measuring method - Google Patents

Description

  The present invention relates to a biological information measuring terminal capable of measuring biological information such as a pulse rate while being worn on a wrist (arm).

In recent years, a biological information measurement terminal has been devised that can be always carried by a subject and that can measure biological information at all times (see, for example, Patent Document 1). The terminal described in Patent Document 1 is a wristwatch-type terminal that is portable at all times, and measures the heart rate of a subject from a change in magnetic force generated in synchronization with a change in blood flow in a measurement unit.
JP2001-127725A

  By the way, in the technique shown in the above-mentioned patent document 1, since the terminal is a terminal that can be always carried, it is possible to always measure. However, when the subject does not carry the terminal, or even if the subject carries it, exercise Even if the terminal is in a state unsuitable for measurement, the terminal measures and outputs some value as a measurement result. Measurement results under such adverse conditions are essentially useless data because they do not correctly indicate the biological information of the subject. However, since this measurement result is treated and processed as the biological information of the subject, there is a problem of misreporting the subject such as “abnormality has occurred”.

  Moreover, in order to obtain more accurate biological information, there is a method of increasing the measurement time and the number of times of measurement, but this is a method that places a heavy load on the data processing unit and storage unit of the terminal. Furthermore, even if the measurement time and the number of times of measurement are increased, if the subject is in a state unsuitable for measurement during that time, the measurement result is still useless data.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a biological information measurement terminal capable of obtaining correct biological information regardless of the situation of the terminal or the subject. To do.

  Moreover, it aims at providing the biometric information measurement terminal which can obtain correct biometric information efficiently, without applying a load with respect to the data processing part and memory | storage part of a biometric information measurement terminal in this case.

  The present invention provides the following means in order to solve the above problems.

The biological information measuring terminal according to the present invention includes a schedule information storage unit that stores schedule information that defines a measurement time for starting measurement of biological information of a subject, and schedule information stored in the schedule storage unit according to the schedule information stored in the schedule storage unit. Biometric information measuring means for performing measurement, measurement status information generating means for generating measurement status information indicating a measurement status when the biological information measuring means measures the biological information, and measurement status information generating means Based on whether or not the measurement status information exceeds a predetermined threshold, the measurement accuracy determination means for determining the measurement accuracy of the biological information, and the biological information determined to have high measurement accuracy by the measurement accuracy determination means A biometric information measuring terminal configured to store biometric information storage means, wherein the biometric information measuring means includes the measurement accuracy determining means. Characterized in that the measurement is ended when it is determined that the higher the measured measurement accuracy of the biological information. (First configuration)
In addition, the biological information measuring terminal according to the present invention stores the number of times the biological information measuring unit repeats the measurement until the measurement accuracy determining unit determines that the measurement accuracy of the measured biological information is high. Storage means, and schedule information changing means for changing the schedule information stored in the schedule information storage means based on whether or not the number of times stored in the number of times storage means exceeds a predetermined threshold. Furthermore, it is characterized by having. (Second configuration)
The biological information measuring terminal of the present invention includes a schedule information storage unit that stores schedule information that defines a measurement time at which measurement of biological information of a subject is started, and a measurement number setting unit that sets the number of measurements to be measured at the measurement time. , Measurement information when the biological information measuring means measures the biological information, and the biological information measuring means that performs measurement according to the schedule information stored in the schedule storage means and the number of times set by the measurement number setting means Measurement status information generation means for generating measurement status information indicating a situation, and whether or not the measurement status information generated by the measurement status information generation means exceeds a predetermined threshold value, the measurement accuracy of the biological information Measurement accuracy determination means for determining the biometric information for storing the biological information determined to have high measurement accuracy by the measurement accuracy determination means A biological information measuring terminal comprising a storage means, wherein the biological information storage means is stored in the biological information storage means after the measurement for the number of times of measurement by the biological information measurement means is completed. Only biometric information with the highest measurement accuracy is retained, and the remaining biometric information is erased. (Third configuration)
In addition, the biological information measuring terminal of the present invention stores the number of determinations for storing the number of times that the measurement accuracy determination unit determines that the measurement accuracy of the biological information is high among the measurement counts by the biological information measurement unit. And the measurement count setting means resets the measurement count based on whether or not the count stored by the determination count storage means exceeds a predetermined threshold. To do. (Fourth configuration)
Further, the biological information measuring terminal of the present invention receives the schedule information and / or information related to the number of times of measurement from an external server, and the biological information measuring unit measures the operation result according to the schedule information. It further has a transmission / reception means for returning biological information. (Fifth configuration)
Further, the biological information measuring terminal of the present invention receives the schedule information and / or information related to the number of times of measurement from an external server, and the biological information measuring unit measures the operation result according to the schedule information. It further has a transmission / reception means for returning the biological information and the schedule information changed by the schedule information changing means. (Sixth configuration)
Further, the biological information measuring terminal of the present invention receives the schedule information and / or information related to the number of times of measurement from an external server, and the biological information measuring unit measures the operation result according to the schedule information. It further has a transmission / reception means for returning the biological information and the measurement count reset by the measurement count setting means. (Seventh configuration)
Further, the measurement status information generation means generates an SN ratio of a detection signal of biological information detected by the biological information measurement means as the measurement status information. (Eighth configuration)
In addition, the measurement status information generation means generates an output value of an acceleration sensor indicating the magnitude of the subject's movement as the measurement status information. (Ninth configuration)
Further, the measurement status information generation means generates an output value of an optical sensor indicating a change in blood volume at a measurement site of the biological information measurement means as the measurement status information. (Tenth configuration)
The biological information measuring method of the present invention is a biological information measuring method used in a biological information measuring terminal that measures biological information of a subject according to schedule information stored in a storage means, and measurement time information included in the schedule information The step of measuring the biological information according to the above, the step of generating the measurement status information indicating the measurement status when measuring the biological information, and whether the measurement status information exceeds a predetermined threshold. Based on the step of determining the measurement accuracy of the biological information and the step of determining the measurement accuracy, a step of ending the measurement when it is determined that the measurement accuracy of the biological information is high, and a determination that the measurement accuracy is high And storing stored biometric information. (Eleventh configuration)
In the biological information measuring method of the present invention, the step of storing the number of times measured until the measurement accuracy of the biological information is determined to be high in the step of determining the measurement accuracy, and the stored number of times are determined in advance. And changing the schedule information based on whether or not the set threshold value is exceeded. (Twelfth configuration)
The biological information measuring method of the present invention is a biological information measuring method used in a biological information measuring terminal that measures biological information of a subject according to schedule information stored in a storage means, and the measurement time defined in the schedule information A step of setting the number of measurements to be measured, a step of measuring the biological information according to the measurement time information and the number of times of measurement included in the schedule information, and a measurement status indicating a measurement situation when measuring the biological information A step of generating information, a step of determining measurement accuracy of the biological information based on whether or not the measurement status information exceeds a predetermined threshold, and biological information determined to have high measurement accuracy. After the step of storing and the measurement for the number of times of measurement are completed, the biometric information stored in the step of storing the biological information is the most Accuracy holds only a high biological information, composed of a step of erasing the remaining biological information. (13th configuration)
Further, the biological information measuring method of the present invention stores the number of times that the measurement accuracy of the biological information is determined to be high in the step of determining the measurement accuracy of the biological information in the measurement for the number of measurement times, And a step of resetting the number of times of measurement based on whether or not the number of times it is determined that the information measurement accuracy is high exceeds a predetermined threshold value. (14th configuration)
The server of the present invention is a server that transmits / receives information to / from a biological information measurement terminal that measures biological information of a subject according to schedule information, and relates to schedule information and / or measurement counts related to measurement operations of the biological information measurement terminal. As an operation result executed according to the schedule information from the means for generating information, the transmission means for transmitting the schedule information and / or information related to the number of measurements to the biological information measurement terminal, and the biological information measurement means, Receiving means for receiving the biological information measured by the biological information measuring means. (15th configuration)
In the server according to the present invention, the receiving means further receives schedule information changed by the biological information measuring terminal. (Sixteenth configuration)
In the server of the present invention, the receiving means further receives the number of times of measurement reset by the biological information measuring terminal. (17th configuration)

  According to the biological information measuring terminal according to the present invention, the data indicating the condition of the terminal or the subject at the time of measuring the biological information is calculated, and the measurement accuracy of the biological information is determined based on the data. Thus, more accurate biological information can be obtained.

  In addition, since the measurement schedule is changed according to the past measurement accuracy, it is possible to efficiently measure the correct biological information according to the lifestyle of the subject.

  In addition, since only biological information with high measurement accuracy is stored, the number of times of repeating measurement is changed based on the measurement accuracy, etc., it is possible to efficiently measure biological information without imposing a load on the terminal. .

  Hereinafter, an embodiment of a biological information measuring terminal according to the present invention will be described with reference to FIGS.

First embodiment

  In the first embodiment, an example in which biological information with high measurement accuracy is measured will be described.

  FIG. 1 is a block diagram showing the configuration of the biological information measuring terminal according to the first embodiment of the present invention. In this figure, reference numeral 1 denotes a biological information measuring terminal. Reference numeral 11 denotes a schedule input means for inputting a schedule for the biological information measuring terminal 1 to perform measurement. Reference numeral 12 denotes a control unit that controls the operation of the biological information measuring terminal 1. Reference numeral 13 denotes a biosensor driving circuit that drives a sensor that measures biometric information of a subject. Reference numeral 14 denotes a biosensor driven by the biosensor drive circuit 13. Reference numeral 15 denotes an A / D converter that performs A / D conversion on the signal from the biosensor 14. Reference numeral 16 denotes a display unit that displays the measurement result. The control unit 12 includes a schedule information storage RAM 121, a ROM 122, a processing unit 123, and a biological information storage RAM 124.

  The schedule information input by the schedule input unit 11 is stored in the schedule information storage unit 121 in the control unit 12. The biological information measuring terminal 1 has a clock function (not shown). When the time of the schedule information stored in the schedule information storage unit 121 is reached, the processing unit 123 drives the biosensor driving circuit 13 according to the processing program stored in the ROM 122, and measures the biometric information of the subject with the biosensor 14.

  The biological information of the subject measured by the biological sensor 14 is A / D converted by the A / D conversion unit 15 and then input to the processing unit 123. The measurement accuracy of the input signal is determined by the processing unit 123, and when the measurement accuracy is high, it is stored in the biological information storage RAM 124. The biological information stored in the biological information storage RAM 124 is displayed on the display unit 16. The display unit 16 is an LCD, for example. The biological information measured by the biological sensor 14 of the present embodiment is, for example, pulse, blood pressure, blood concentration, and the like. As a method for determining the measurement accuracy in the processing unit 123, for example, a method of determining that the measurement accuracy is high if a threshold is set in the SN ratio and the threshold is equal to or greater than the threshold, or a sensor for detecting the presence or absence of the subject's movement such as an acceleration sensor or a gyro sensor And measuring the measurement accuracy from the stationary state of the subject.

  Next, with reference to FIG. 2, the basic operation when the biological information measuring terminal 1 measures the biological information of the subject will be described. FIG. 2 is a flowchart showing a basic operation when the biological information measuring terminal 1 shown in FIG. 1 measures biological information of a subject.

  First, when the time of the schedule input in advance by the subject (step S1), the biological information of the subject is measured by the biological sensor 14 (step S2).

  Next, whether or not the measured biological information is information with high measurement accuracy is determined by the processing unit 123 (step S3), and if it is information with high measurement accuracy, it is stored in the biological information storage RAM 124 (step S4). When the measurement accuracy is low, the biological sensor 14 measures the biological information of the subject again and repeats until biometric information with high measurement accuracy is obtained (hereinafter, re-measurement within one schedule is expressed as “retry”. To do).

  Next, the biological information of the subject stored in the biological information storage RAM 124 is displayed on the display unit 16 (step S5).

  In this way, since the measurement accuracy of the measured biological information is determined and only information with high measurement accuracy is stored, abnormal values obtained by mistake when measuring in a state unsuitable for measurement are stored and displayed. There is nothing to do.

Second embodiment

  In 2nd Embodiment, the example which changes schedule information according to the frequency | count of a measurement until biometric information with high measurement accuracy is obtained is shown.

  FIG. 3 is a block diagram showing a configuration of a biological information measuring terminal according to the second embodiment of the present invention. In this figure, the code | symbol 3 is a pulse measuring terminal which measures a test subject's pulse rate by a photoelectric pulse wave system. Reference numeral 31 denotes schedule input means for inputting a schedule for the pulse measurement terminal 3 to perform measurement. Reference numeral 32 denotes a control unit that controls the operation of the pulse measurement terminal 3. Reference numeral 33 denotes a pulse sensor drive circuit that drives a sensor that measures the pulse rate of the subject. Reference numeral 34 denotes a pulse sensor driven by the pulse sensor drive circuit 33. Reference numeral 35 denotes an A / D converter that performs A / D conversion on the signal from the pulse sensor 34. Reference numeral 36 denotes a display unit that displays the measurement result. The control unit 32 includes a schedule information storage RAM 321, a ROM 322, a processing unit 323, a pulse rate storage RAM 324, and a measurement count storage RAM 325.

  The schedule information input by the schedule input unit 31 is stored in the schedule information storage unit 321 in the control unit 32. The pulse measuring terminal 3 has a clock function (not shown). When the time of the schedule information stored in the schedule information storage unit 321 is reached, the processing unit 323 drives the pulse sensor driving circuit 33 according to the processing program stored in the ROM 322, and measures the pulse information of the subject with the pulse sensor 34.

  The pulse information of the subject measured by the pulse sensor 34 is A / D converted by the A / D conversion unit 35 and then input to the processing unit 323, and the pulse rate is obtained by performing FFT (Fast Fourier Transform) processing. On the other hand, the processing unit 323 determines the measurement accuracy of the input signal, and if the measurement accuracy is high, it is stored in the pulse rate storage RAM 324. The pulse rate stored in the pulse rate storage RAM 324 is displayed on the display unit 36. The pulse measurement of the subject by the pulse sensor 34 is retried until measurement with high measurement accuracy is performed, and the measurement count is stored in the measurement count storage RAM 325. The processing unit 323 changes the schedule information stored in the schedule information storage RAM 325 according to the measurement count stored in the measurement count storage RAM 326.

  The pulse sensor 34 includes, for example, a light emitting diode (hereinafter referred to as LED) that irradiates the subject with light, and a photodiode (hereinafter referred to as PD) that receives backscattered light among the light irradiated to the subject by the LED. . The light irradiated to the subject is received by the PD as light that is repeatedly attenuated by absorption and scattering by skin, fat, muscle, blood, etc. in the subject's body. Since the blood volume at the measurement site changes with the pulsation of the subject, the calculation means can calculate the pulse rate from the change in the amount of received light. In this embodiment, the pulse rate is calculated by performing FFT processing on the received light signal and analyzing the frequency component of the received light signal to obtain the pulse rate. In addition, the pulse rate is calculated from the time between peaks of the received light signal. The method of putting out may be used. In this embodiment, the photoelectric pulse wave method is adopted as a method for measuring the pulse, but other methods such as a method using a magnetic sensor or a method using a pressure sensor may be used.

  As a method of determining the measurement accuracy in the processing unit 323, the presence or absence of the subject's movement is detected by detecting the change in the blood volume using the output signal of the pulse sensor 34. If the movement is within a certain threshold, the measurement accuracy is high. And a method for determining the measurement accuracy from the S / N ratio of the received light signal.

  In the present embodiment, the pulse is shown as the biological information to be measured. However, other biological information such as blood pressure and blood concentration may be used.

  OLE_LINK1 Next, a basic operation when the schedule of the pulse measuring terminal 3 is changed will be described with reference to FIG. OLE_LINK1 FIG. 4 is a flowchart showing a basic operation when the schedule of the pulse measuring terminal 3 shown in FIG. 3 is changed.

  First, when the input schedule information coincides with the time (step S6), the pulse sensor 34 starts measuring the pulse of the subject (step S7).

  Next, whether or not the measured pulse is information with high measurement accuracy is determined by the processing unit 323 (step S8), and if it is information with high measurement accuracy, it is stored in the pulse storage RAM 324. When the measurement accuracy is low, the pulse sensor 34 measures the pulse of the subject again, and the measurement is repeated until information with high measurement accuracy is obtained. The number of times the pulse sensor 34 has measured until the pulse determined to be “high in measurement accuracy” by the processing unit 324 is stored in the measurement number storage RAM 325 (step S9).

  When the preset number of measurements for the number of days until the schedule information is changed is stored in the measurement number storage RAM 325 (step S10), the processing unit 324 stores the number of measurements in the schedule information storage RAM according to the number of measurements. The schedule information is changed (step S11), and the measurement is performed again along the changed schedule information.

  With reference to FIG. 5, the operation for storing the number of measurements and changing the schedule will be described. FIG. 5 is a table showing an outline in which the processing unit 323 changes the schedule according to the number of measurements stored in the number-of-measurements storage RAM 325 of FIG. As an example, in the schedule for measuring at 10:00 and 12:00, the number of days until it is determined whether or not to change the schedule is 5 days. In addition, the threshold for whether to change the schedule is set to 5 times.

  Looking at the result of the 10:00 schedule, the average of the number of measurements performed until obtaining information with high measurement accuracy is 1.4 times less than the threshold, so the schedule is not changed. However, looking at the result of the schedule at 12:00, the average of the number of measurements over 5 days is 7.6 times, which is greater than the threshold value, so the schedule is changed. For example, the schedule start time is shifted by 10 minutes and changed to 12:10.

  In this example, a threshold is set for the average number of measurements (5 measurements), and the schedule is shifted back 10 minutes when the threshold is exceeded, but the threshold at that time can be set in any way, This is not the case. In addition, the number of days until the schedule is changed is 5 days in this example, but it is not limited to this. In addition, the number of days until the schedule is changed may include a means for inputting the number of days until the pulse measurement terminal changes the schedule and can be freely set by the subject.

  By changing the schedule in this way, it is possible to perform measurement while avoiding a time zone unsuitable for measurement according to the lifestyle of the subject, and thus it is possible to perform measurement efficiently.

Third embodiment

  In 3rd Embodiment, the example which obtains the biometric information with the highest measurement precision from the measurement result for multiple times is shown.

  FIG. 6 is a block diagram showing a configuration of a biological information measuring terminal according to another embodiment of the present invention. In this figure, the code | symbol 6 is a pulse measuring terminal which measures a test subject's pulse rate by a photoelectric pulse wave system. Reference numeral 61 denotes a schedule input means for inputting a schedule for measurement by the pulse measuring terminal 6. Reference numeral 62 denotes retry number input means for inputting how many times the pulse measurement terminal 6 will retry when measuring based on the schedule. Reference numeral 63 denotes a control unit that controls the operation of the pulse measurement terminal 6. Reference numeral 64 denotes a pulse sensor drive circuit that drives a sensor that measures the pulse rate of the subject. Reference numeral 65 denotes a pulse sensor driven by the pulse sensor drive circuit 64. Reference numeral 66 denotes an A / D converter that performs A / D conversion on the signal from the pulse sensor 65. Reference numeral 67 denotes a display unit that displays the measurement result. The control unit 63 includes a schedule information storage RAM 631, a retry count setting value storage RAM 632, a ROM 633, a processing unit 634, and a pulse rate storage RAM 635.

  The schedule information input by the schedule input means 61 is stored in the schedule information storage RAM 631 in the control unit 63. Similarly, the retry count setting value input by the retry count input means 62 is stored in the retry count setting value storage RAM 632 in the control unit 63. The pulse measuring terminal 6 has a clock function (not shown). When the time of the schedule information stored in the schedule information storage RAM 631 comes, the processing unit 634 drives the pulse sensor driving circuit 64 according to the processing program stored in the ROM 633, and measures the pulse information of the subject with the pulse sensor 65.

  The pulse information of the subject measured by the pulse sensor 65 is A / D converted by the A / D conversion unit 66 and then input to the processing unit 634, where FFT processing is performed to obtain the pulse rate. On the other hand, the processing unit 634 determines the measurement accuracy of the input signal, and information with high measurement accuracy is stored in the pulse rate storage RAM 635. The measurement for one schedule is repeated by the number of retries stored in the retry count setting value storage RAM 632. When the number of measurements reaches the set value (number of retries), the processing unit 634 stores only the information with the highest measurement accuracy among the pulse rates stored in the pulse rate storage RAM 635 and erases the other information. The pulse rate stored in the pulse information storage RAM 635 is displayed on the display unit 67. The pulse sensor 65 has the same configuration as the pulse sensor 64 of the second embodiment. The determination method of the measurement accuracy in the processing unit 634 is the same as the determination method in the processing unit 633 of the second embodiment. In this embodiment, the pulse is shown as the measured biological information, but other biological information such as blood pressure and blood concentration may be used.

  Next, a basic operation when the pulse measuring terminal 6 measures the pulse of the subject will be described with reference to FIG. FIG. 7 is a flowchart showing the basic operation when the pulse measuring terminal 6 shown in FIG. 6 measures the pulse of the subject.

  First, when the time and the schedule input in advance coincide (step S12), the pulse of the subject is measured by the pulse sensor 65 (step S13).

  Next, the processing unit 624 determines the pulse rate of the subject and the measurement accuracy of the information from the signal input from the A / D conversion unit 66 (step S14), and information with high measurement accuracy is the pulse rate storage RAM 635. (Step S15) and not stored when the measurement accuracy is low (step S16).

  After the measurement is completed, it is determined whether the number of times of measurement has reached a preset number of retries (step S17). If not, the measurement is repeated until the set number of retries is reached. When the number of times of measurement has reached the number of retries, information with the highest measurement accuracy is identified among the pulse rates measured this time stored in the pulse rate storage RAM 635 (step S18), and the information with the highest measurement accuracy is While remaining stored in the pulse rate storage RAM 635 (step S19), other information is deleted (step S20). Then, the pulse rate of the subject stored in the pulse rate storage RAM 635 is also displayed on the display unit 67 (step S21).

  By providing the means for setting the number of retries in this way, it is possible to eliminate unnecessary measurement and efficiently measure the biological information of the subject without applying a load to the data processing unit and the storage unit. It is possible to efficiently obtain correct biological information.

Fourth embodiment

  In 4th Embodiment, the example which changes the frequency | count of retry by the frequency | count determined as it is biometric information with high measurement precision as a result of having measured several times is shown.

  FIG. 8 is a block diagram showing a configuration of a biological information measuring terminal according to another embodiment of the present invention. In this figure, the code | symbol 8 is a pulse measuring terminal which measures a test subject's pulse rate by a photoelectric pulse wave system. Reference numeral 81 denotes schedule input means for inputting a schedule for the pulse measuring terminal 8 to perform measurement. Reference numeral 82 denotes retry number input means for inputting how many times the pulse measurement terminal 8 repeats measurement when performing measurement based on a schedule. Reference numeral 83 denotes a control unit that controls the operation of the pulse measurement terminal 8. Reference numeral 84 denotes a pulse sensor driving circuit that drives a sensor for measuring the pulse rate of the subject. Reference numeral 85 denotes a pulse sensor driven by the pulse sensor drive circuit 84. Reference numeral 86 denotes an A / D converter that A / D converts the signal from the pulse sensor 85. Reference numeral 87 denotes a display unit that displays the measurement result. The control unit 83 includes a schedule information storage RAM 831, a retry count setting value storage RAM 832, a ROM 833, a processing unit 834, a pulse rate storage RAM 835, and a determination count storage RAM 836.

  The schedule information input by the schedule input unit 81 is stored in the schedule information storage RAM 831 in the control unit 83. Similarly, the retry count setting value input by the retry count input means 82 is stored in the retry count setting value storage RAM 832 in the control unit 83. The pulse measuring terminal 8 has a clock function (not shown). When the time of the schedule information stored in the schedule information storage RAM 831 is reached, the processing unit 834 drives the pulse sensor driving circuit 84 according to the processing program stored in the ROM 833, and measures the pulse information of the subject with the pulse sensor 85.

  The pulse information of the subject measured by the pulse sensor 85 is A / D converted by the A / D conversion unit 86 and then input to the processing unit 834 to perform FFT processing and obtain the pulse rate. On the other hand, the processing unit 834 determines the measurement accuracy of the input signal, and information with high measurement accuracy is stored in the pulse rate storage RAM 835. The measurement for one schedule is repeated for the number of retries stored in the retry count setting value storage RAM 832, and when the measurement count reaches the set value (the number of retries), the processing unit 834 stores the pulse rate stored in the pulse rate storage RAM 835. Only information with the highest measurement accuracy is memorized and other information is erased. The pulse rate stored in the pulse information storage RAM 835 is displayed on the display unit 87. When the processing unit 834 determines the measurement accuracy, the number of times that highly accurate information exceeding the threshold is obtained (number of determinations) is stored in the determination number storage RAM 836. The processing unit 834 changes the retry count of each schedule stored in the retry count storage RAM 832 according to the determination count stored in the determination count storage RAM 836. The pulse sensor 85 has the same configuration as the pulse sensor 64 of the second embodiment. The determination method of the measurement accuracy in the processing unit 834 is the same as the determination method in the processing unit 633 of the second embodiment. In this embodiment, the pulse is shown as the measured biological information, but other biological information such as blood pressure and blood concentration may be used.

  Next, the basic operation when the number of retries for each schedule of the pulse measuring terminal 8 is changed will be described with reference to FIG. FIG. 9 is a flowchart showing the basic operation when the number of retries for each schedule of the pulse measuring terminal 6 shown in FIG. 8 is changed.

  First, the number of retries is input in advance by the subject using the retry number input means 82 (step S22) and stored in the retry number setting value storage RAM 832 (step S23). In this state, when the time and the schedule input in advance coincide with each other (step S24), the pulse sensor 85 performs measurement of the subject, and the pulse information determined by the processing unit 834 to have high measurement accuracy is stored in the pulse rate storage RAM 835. Stored (step S25).

  After the measurement is completed, it is determined whether the number of measurements has reached a preset number of retries (step S26). If not, the measurement is repeated. When the number of measurements reaches the number of retries, the measurement is completed, and the number of information determined to have high measurement accuracy during the retry is stored in the determination number storage RAM 836 (step S27). The processing unit 834 changes the setting value of the retry count setting value storage RAM 832 according to the determination count stored in the determination count storage RAM 836 (step S28).

  With reference to FIG. 10, description will be given of the operation for storing the number of determinations and changing the number of retries. FIG. 10 shows the number of retries stored in the retry count setting value storage RAM 832 by the processing unit 834 according to the determination count stored in the determination count storage RAM 836 in FIG. 8 (the number of times biometric information with high measurement accuracy is obtained). It is the table which showed the outline to change. As an example, in the schedule for measuring at 10:00 and 12:00, the number of days until the number of retries is changed is 5 days. Further, the threshold value for changing the number of retries is set to 2 times the number of determinations.

  Looking at the result of the 10 o'clock schedule, the average of the number of times determined to be biometric information with high measurement accuracy exceeds the threshold of 4.4 times, so there is no need to retry (5 times ) Reduce the number of retries by 1 and change it to 4 times. On the other hand, when the result of the schedule at 12:00 is seen, the average number of determinations is 1.4 times, which is below the threshold value. Therefore, it is determined that biometric information with high measurement accuracy cannot be obtained unless 5 retries are performed. ) Do not change the number of retries.

  In this way, by providing the function to change the number of retries for each schedule, it is possible to perform measurement with the optimum number of retries in each time zone, so it is possible to efficiently measure the biological information of the subject without performing measurement more than necessary. Can be measured. In this example, a threshold (5 determinations) is set for the average number of measurements, and the number of retries is reduced by 1 when the number is below the threshold. However, the threshold at that time can be set in any way, This is not the only way to change the number of times. In addition, the number of days until the schedule is changed may include a means for inputting the number of days until the pulse measurement terminal changes the schedule and can be freely set by the subject.

Fifth embodiment

  In the fifth embodiment, an example of a system for remotely monitoring the health condition of a subject using the biological information measuring terminal of the present invention will be described.

  FIG. 11 is a block diagram illustrating a configuration of a system including a biological information measurement terminal according to another embodiment of the present invention and a transmission / reception terminal that receives information from the biological information measurement terminal. In this figure, the code | symbol 9 is a pulse measuring terminal which measures a test subject's pulse rate by a photoelectric pulse wave system. Reference numeral 2 is a transmission / reception terminal that is remote and can monitor a subject's health condition and can communicate wirelessly with a pulse measurement terminal.

  Reference numeral 91 is a control unit that controls the operation of the pulse measuring terminal 9. Reference numeral 92 denotes a pulse sensor drive circuit that drives a sensor that measures the pulse rate of the subject. Reference numeral 93 denotes a pulse sensor driven by the pulse sensor drive circuit 92. Reference numeral 94 denotes an A / D converter that performs A / D conversion on the signal from the pulse sensor 93. Reference numeral 95 denotes a display unit that displays the measurement result. Reference numeral 96 denotes a communication unit that wirelessly communicates with the transmission / reception terminal 2. The control unit 91 includes a ROM 911, a processing unit 912, a schedule information storage RAM 913, a retry count setting value storage RAM 914, a determination count storage RAM 915, and a pulse rate storage RAM 916.

  Reference numeral 21 denotes a communication unit that wirelessly communicates with the pulse measurement terminal 9. Reference numeral 22 denotes schedule input means for inputting a measurement schedule of the pulse measuring terminal 9. Reference numeral 23 denotes a retry count input means for inputting the retry count of the measurement of the pulse measuring terminal 9. Reference numeral 24 denotes a pulse rate storage RAM that stores the pulse rate of the subject measured by the pulse measurement terminal 9. Reference numeral 25 denotes a display unit that displays the pulse rate of the subject stored in the pulse rate storage RAM 24. Reference numeral 26 denotes a measurement information storage RAM that stores measurement information such as the number of retries and the number of determinations of the pulse measurement terminal 9.

  The schedule information input by the schedule input unit 22 is stored in the schedule information storage ROM 913 from the communication unit 21 through the communication unit 96. Similarly, the retry count setting value input by the retry count input means 23 is stored in the retry count setting value storage RAM 914. The pulse measuring terminal 9 has a clock function (not shown), and when the time of the schedule information stored in the schedule information storage RAM 913 comes, the processing unit 912 drives the pulse sensor drive circuit 92 according to the processing program stored in the ROM 911. The pulse information of the subject is measured by the pulse sensor 93.

  The pulse information of the subject measured by the pulse sensor 93 is A / D converted by the A / D conversion unit 94 and then input to the processing unit 912 to perform FFT processing to obtain the pulse rate. On the other hand, the processing unit 912 determines the measurement accuracy of the input signal, and information with high measurement accuracy is stored in the pulse rate storage RAM 916. The measurement for one schedule is repeated by the number of retries stored in the retry number setting value storage RAM 914. When the measurement count reaches the set value (retry count), the processing unit 912 stores only the information with the highest measurement accuracy among the pulse rates stored in the pulse rate storage RAM 916 and erases the other information. The pulse rate stored in the pulse information storage RAM 916 is displayed on the display unit 95. Further, it is stored in the pulse rate storage RAM 24 of the transmission / reception terminal 2 through the communication unit 96 and displayed on the display unit 25.

  When the processing unit 912 determines the measurement accuracy, the number of times that highly accurate information exceeding the threshold is obtained is stored in the determination number storage RAM 915. The processing unit 912 changes the retry count of each schedule stored in the retry count storage RAM 914 according to the determination count stored in the determination count storage RAM 915. The changed number of retries and the number of determinations used for the change are stored in the measurement information storage RAM 24 of the transmission / reception terminal 2 through the communication unit 96.

  Thus, by providing a transmitter / receiver separately from the measurement terminal, it is possible to apply to a system for remotely monitoring the physical condition of the subject. In the present embodiment, the pulse measurement terminal 9 does not have a function of changing the schedule, but may be a terminal that is provided with this function and that can transmit the change contents to the transmission / reception terminal 2. In the present embodiment, the pulse is shown as the biological information to be measured. However, other biological information such as blood pressure and blood concentration may be used.

It is a block diagram which shows schematic structure of the biometric information measurement terminal which concerns on one Embodiment of this invention. It is a flowchart which shows operation | movement of a biometric information measurement terminal. It is a block diagram which shows the structure of the biometric information measurement terminal which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows the basic operation | movement at the time of the schedule of a pulse measuring terminal being changed. It is the table which showed the outline which changes a schedule. It is a block diagram which shows the structure of the biometric information measurement terminal which concerns on the 3rd Embodiment of this invention. It is a flowchart which shows the basic operation | movement at the time of a pulse measuring terminal measuring a test subject's pulse. It is a block diagram which shows the structure of the biometric information measurement terminal which concerns on the 4th Embodiment of this invention. It is a flowchart which shows the basic operation | movement when the frequency | count of retry for every schedule of a pulse measurement terminal is changed. It is a table showing an outline of changing the number of retries. It is a block diagram which shows the structure of the biometric information measurement terminal which concerns on the 5th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Biological information measurement terminal 2 Transmission / reception terminal 3, 6, 8, 9 Pulse measurement terminal

Claims (13)

Schedule information storage means for storing schedule information that defines a measurement time for starting measurement of biological information of the subject;
Biological information measuring means for measuring the biological information according to the schedule information;
Measurement status information generating means for generating measurement status information indicating a measurement status when the biological information measuring means measures the biological information;
Measurement accuracy determination means for determining the measurement accuracy of the biological information based on whether or not the measurement status information exceeds a predetermined threshold;
A biological information measuring terminal composed of a biometric information storage means for storing the living body information it is determined that the accuracy is high in the measurement accuracy judging means,
The measurement accuracy judging means, until it is determined to be high the measurement accuracy, the number of times storage means for storing the number of times that the biometric information measuring unit is repeated measurement,
Based on whether the count exceeds a predetermined threshold, it possesses a schedule information changing means for changing the schedule information,
The biological information measuring terminal, wherein the biological information measuring unit ends the measurement when the measurement accuracy determining unit determines that the measurement accuracy is high. Schedule information storage means for storing schedule information that defines a measurement time for starting measurement of biological information of the subject;
A measurement frequency setting means for setting the measurement frequency to be measured at the measurement time;
Biological information measuring means for measuring the biological information according to the schedule information and the number of measurements;
Measurement status information generating means for generating measurement status information indicating a measurement status when the biological information measuring means measures the biological information;
Measurement accuracy determination means for determining the measurement accuracy of the biological information based on whether or not the measurement status information exceeds a predetermined threshold;
The measurement accuracy judging means, a biometric information measuring terminal composed of a biometric information storage means for storing the living body information it is determined that the accuracy is high,
The biological information storage means retains only the biological information with the highest measurement accuracy stored in the biological information storage means after the measurement for the number of measurements, and erases the remaining biological information. A biological information measuring terminal. The measurement accuracy determining means of the measurement of the measurement number of times, has a number of determinations storage means for storing the number of times that the measurement accuracy is determined to be high,
The biological information measurement terminal according to claim 2 , wherein the measurement count setting means resets the measurement count based on whether or not the stored count exceeds a predetermined threshold. Receiving the schedule information from the server, the biological information measuring according to any one of 3 the biological information measured in accordance with the schedule information from the claim 1, characterized in that it comprises a receiving means for returning to the server Terminal. Receiving said information relating to the number of times of measurement from the server, according to any of claims 2 3, characterized in that it comprises a receiving means for returning the biological information measured according to the schedule information to the server Biological information measuring terminal. Claims wherein the scheduling information received from the server, characterized by having a receiving means for returning said biological information measured in accordance with the schedule information, and schedule information in which the schedule information changing unit has changed to the server Item 2. The biological information measuring terminal according to Item 1 . Returning said schedule information, and / or information relating to the number of measurements received from the server, and the biological information measured in accordance with the schedule information, and a number of measurements of the measurement number setting means is re-set to the server The living body information measuring terminal according to claim 3 , further comprising a transmitting / receiving unit configured to transmit and receive.   The biological information measurement terminal according to claim 1, wherein the measurement status information generation unit generates an SN ratio of a detection signal of the biological information as the measurement status information.   The biological information measurement terminal according to claim 1, wherein the measurement status information generation unit generates an output value of an acceleration sensor indicating the magnitude of the movement of the subject as the measurement status information. The biological information according to claim 1, wherein the measurement status information generation unit generates an output value of an optical sensor indicating a change in blood volume at the measurement site of the subject as the measurement status information. Measuring terminal. A biological information measuring method used in a biological information measuring terminal for measuring biological information of a subject according to schedule information stored in a storage means,
Measuring the biological information according to the measurement time information included in the schedule information;
Generating measurement status information indicating a measurement status when measuring the biological information;
Determining the measurement accuracy of the biological information based on whether the measurement status information exceeds a predetermined threshold;
In determining the measurement accuracy, and storing the number of times measured until the measurement accuracy it is judged to be high,
Changing the schedule information based on whether the number of times exceeds a predetermined threshold;
Determining the measurement accuracy, ending the measurement when it is determined that the measurement accuracy is high;
Biological information measuring method, characterized in that consists of the steps of storing the biometric information is determined to be high the measurement accuracy. A biological information measuring method used in a biological information measuring terminal for measuring biological information of a subject according to schedule information stored in a storage means,
Setting the number of measurements to measure the biological information at the measurement time specified in the schedule information;
Measuring the biological information according to the schedule information and the number of measurements;
Generating measurement status information indicating a measurement status when measuring the biological information;
Determining the measurement accuracy of the biological information based on whether the measurement status information exceeds a predetermined threshold;
Step and the later measurement of the measurement number of times completion of storing the living body information it is determined that the accuracy is high, among the biometric information stored in storing the biometric information, only the most measurement accuracy is high biological information A biological information measuring method comprising: holding and erasing the remaining biological information. Said step of determining the measurement accuracy, of the measurement of the measurement number of times, comprising the step of storing the number of times the measurement accuracy of the biological information is determined to be high,
Step of setting the number of measurements is, number of times the storage is based on whether it exceeds a predetermined threshold value, according to claim 10, characterized in that it comprises a step of resetting the number of measurements Biological information measurement method.

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