Body information measuring device and control method for body information measuring device

Abstract

To reduce such the cases of failure of measurement and elongation of measurement time in measuring a physical feature amount in a non-contact manner.SOLUTION: A body state calculation part (125) calculates a value indicating a body condition of a person to be measured as data of a physical feature amount that is extracted equal to or more than predetermined times by merging data of a physical feature amount that are extracted by existing measurement with data of stored physical feature amount that has been extracted ever by measurement.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0001] The present invention relates to a body information measurement device and the like using non-contact measurement of body feature amounts.

Background Art

[0002] Conventionally, in determining the state of a subject, the pulse wave of the subject is measured, and the state of the subject is determined from the measured pulse wave. For example, Patent Document 1 proposes a device provided with a pulse wave sensor that measures a pulse wave by contacting the user's body. Specifically, the device evaluates the user's movement using the pulse wave measured by the pulse wave sensor and displays the result on a display device.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the conventional technology as described above is a technology using a contact-type pulse wave sensor that measures a pulse wave by contacting the user's body. Therefore, it is not a technology premised on non-contact measurement of a pulse wave for the user.

[0005] For example, in a technology for measuring body feature amounts from a photographed image of a subject, due to camera shake of the photographer, subject blur, etc., the measurement time may become long or the measurement may fail.

[0006] [[ID=4B]]One aspect of the present invention aims to realize a body information measurement device and the like that can reduce the lengthening of the measurement time of non-contact body feature amounts and the failure of non-contact measurement of body feature amounts.

Means for Solving the Problems

[0007] To solve the above problems, a physical information measuring device according to one aspect of the present invention comprises: an acquisition unit that acquires an image of a person to be measured in response to a measurement start operation input for each measurement; an extraction unit that performs an extraction process of the physical characteristics of the person to be measured for each measurement using the acquired image; a storage unit that stores the data of the physical characteristics extracted in previous measurements; and a calculation unit that calculates a value indicating the physical state of the person to be measured using the data of the physical characteristics extracted a predetermined number of times or more. The calculation unit, when the number of times the physical characteristics have been successfully extracted in the current measurement has reached the predetermined number of times, calculates a value indicating the physical condition of the person being measured, using the data of the physical characteristics extracted by the current measurement as data of the physical characteristics extracted more than the predetermined number of times. The calculation unit described above, In the current measurement, if the number of times the physical features have been successfully extracted has not reached the predetermined number, The data of physical characteristics extracted by the current measurement and the data of physical characteristics extracted by previous measurements stored in the memory unit are combined to calculate a value indicating the physical condition of the person being measured, using the data of physical characteristics extracted a predetermined number of times or more.

[0008] Furthermore, in order to solve the above problems, a control method for a physical information measuring device according to one aspect of the present invention includes: an acquisition step of acquiring an image of a person to be measured in response to a measurement start operation input for each measurement; an extraction step of extracting physical characteristics of the person to be measured for each measurement using the acquired image; a storage step of storing the data of physical characteristics extracted in previous measurements; and a calculation step of calculating a value indicating the physical state of the person to be measured using the data of physical characteristics extracted a predetermined number of times. In the calculation step described above, if the number of times the physical characteristics have been successfully extracted in the current measurement has reached the predetermined number of times, the data of the physical characteristics extracted by the current measurement is used as the data of the physical characteristics extracted more than the predetermined number of times to calculate a value indicating the physical condition of the person being measured. In the calculation step described above, In the current measurement, if the number of times the physical features have been successfully extracted has not reached the predetermined number, The data of physical characteristics extracted by the current measurement and the data of physical characteristics extracted by previous measurements stored in the memory step are combined to calculate a value indicating the physical condition of the person being measured, as the data of physical characteristics extracted a predetermined number of times. [Effects of the Invention]

[0009] According to one aspect of the present invention, the occurrence of errors in non-contact measurement of physical characteristics can be reduced. Furthermore, the measurement time for non-contact measurement of physical characteristics can be reduced. [Brief explanation of the drawing]

[0010] [Figure 1] This is a block diagram showing the main components of the body information measuring device according to this embodiment 1. [Figure 2] This figure shows an overview of the body information measuring device according to this first embodiment. [Figure 3] This figure shows an example of measurement information according to this embodiment 1. [Figure 4] This flowchart shows an example of the measurement process flow according to this embodiment 1. [Figure 5] This is a block diagram showing the main components of the body information measuring device according to this second embodiment. [Figure 6] This flowchart shows an example of the measurement process flow according to this second embodiment. [Figure 7] This figure shows an example of a body information measurement system related to this modified example 2. [Modes for carrying out the invention]

[0011] [Embodiment 1] Hereinafter, one embodiment of the present invention will be described in detail with reference to Figures 1 to 4.

[0012] (Overview of Body Information Measurement Device 1) First, the outline of this embodiment will be explained using Figure 2. Figure 2 is a diagram showing an overview of the body information measuring device 1.

[0013] The body information measurement device 1 is a measurement device that measures the body information of the subject U1 by using non-contact measurement of body characteristic quantities. Specifically, as shown in FIG. 2, the body information measurement device 1 includes a camera 13 and a display unit 16. When the measurement of the body information measurement device 1 is started, the measurer U2 uses the camera 13 to photograph the subject U1 of the current measurement.

[0014] The body information measurement device 1 performs an extraction process of the body characteristic quantities of the subject for each measurement by using the acquired captured image of the subject. For example, the body information measurement device 1 calculates the pulse wave of the subject U1 from the color change of the body surface of the subject U1 in the captured image. Further, the body information measurement device 1 may calculate a value indicating the characteristics of the calculated pulse wave from the calculated pulse wave. The body characteristic quantities are, for example, these calculated pulse waves, values indicating the characteristics of the pulse wave, and the like. Further, the body information measurement device 1 stores the data of the body characteristic quantities extracted in the previous measurements. The previous measurements mean the measurements performed before the current measurement.

[0015] The body information measurement device 1 calculates a value indicating the body state of the subject U1 by using the data of the body characteristic quantities extracted a predetermined number of times. Specifically, the body information measurement device 1 uses the data obtained by combining the data of the body characteristic quantities extracted by the current measurement and the data of the body characteristic quantities extracted by the previous measurements stored as the data of the body characteristic quantities extracted a predetermined number of times. For example, the body information measurement device 1 may calculate vascular information, which is information related to blood vessels such as the speed of blood flow, as a value indicating the body state.

[0016] The display image D1 shown in FIG. 2 is an example of an image displayed on the display unit 16 during the measurement of the subject U1 by the body information measurement device 1. The display image D1 displays a message indicating that the measurement is in progress and a captured image of the subject U1.

[0017] In addition, the display image D2 is an example of an image displayed on the display unit 16 when the body information measuring device 1 fails to measure the subject U1. For example, even if the sum of the number of extractions of physical feature amounts by the current measurement and the number of extractions of physical feature amounts by the previous measurements stored is less than a predetermined number, the measurement is considered to have failed. On the display image D2, a message "Error" indicating the failure of the measurement, the name of the subject U1, a photographed image of the subject U1, etc. are displayed.

[0018] In addition, the display image D3 is an example of an image displayed on the display unit 16 when the body information measuring device 1 succeeds in measuring the subject U1. For example, if the sum of the number of extractions of physical feature amounts by the current measurement and the number of extractions of physical feature amounts by the previous measurements stored reaches a predetermined number, the measurement is considered to have succeeded. On the display image D3, "Vascular information" indicating the value of the body state as the result of the measurement, the name of the subject U1, a photographed image of the subject U1, etc. are displayed. Further, as shown in the display image D3, if the body information measuring device 1 includes an infrared sensor or the like, the body surface temperature of the subject U1 measured by the infrared sensor may be displayed.

[0019] According to the above configuration, the body information measuring device 1 is configured to extract physical feature amounts from the captured image, that is, to calculate a value indicating the body state of the subject U1 by using data of two physical feature amounts in a non-contact measurement. One of the data of the two physical feature amounts is data of the physical feature amount extracted by the current measurement. The other of the data of the two physical feature amounts is data of the physical feature amount extracted by the previous measurements stored. The total number of extractions of these two data reaches a predetermined number.

[0020] Therefore, for example, in a configuration where a predetermined number of extractions of physical feature amounts are required in a non-contact measurement, even if the number of extractions of physical feature amounts in the current measurement does not reach the predetermined number, the body state of the subject U1 can be calculated.

[0021] Therefore, it is possible to reduce the occurrence of errors that occur in current non-contact measurements because the extraction of physical features does not reach a predetermined number of times. In addition, it is possible to reduce the length of measurement time that occurs in current non-contact measurements because the extraction of physical features does not reach a predetermined number of times.

[0022] (Configuration of Body Information Measurement Device 1) Next, the configuration of the physical information measuring device 1 will be described with reference to Figure 1. Figure 1 is a block diagram showing the main components of the physical information measuring device 1. For example, a smartphone may be used as the physical information measuring device 1. As shown in Figure 1, the physical information measuring device 1 includes an operation reception unit 11, a control unit 12, a camera 13, a timer 14, a storage unit 15, and a display unit 16.

[0023] <Operation reception unit 11> The operation reception unit 11 receives the operation to start measurement, which is entered for each measurement. Upon receiving the operation to start measurement, the operation reception unit 11 instructs the acquisition unit 121 to acquire the image captured by the camera 13. The operation reception unit 11 also transmits a signal indicating the start of measurement to the measurement information determination unit 122.

[0024] <Control Unit 12> The control unit 12 controls all parts of the body information measuring device 1. As shown in Figure 1, the control unit 12 includes an acquisition unit 121, a measurement information determination unit 122, an extraction unit 124, an extraction count determination unit 123, a body state calculation unit (calculation unit) 125, and a display control unit 126.

[0025] ≪Acquisition part 121≫ The acquisition unit 121 acquires an image of the person being measured in response to the measurement start operation input for each measurement.

[0026] In detail, when the acquisition unit 121 receives an instruction from the operation reception unit 11 to acquire captured image data, it acquires captured image data of the person being measured from the camera 13. The acquisition unit 121 then transmits the acquired captured image data to the measurement information determination unit 122 and the extraction unit 124.

[0027] The acquisition unit 121 may acquire moving image data from the camera 13 as captured image data. The acquisition unit 121 may generate multiple still image data at regular time intervals from the acquired moving image data and transmit the generated still image data to the measurement information determination unit 122 and the extraction unit 124. Alternatively, the acquisition unit 121 may acquire still image data at regular time intervals from the camera 13 as captured image data.

[0028] Alternatively, the acquisition unit 121 may be configured to cause the timer 14 to measure the elapsed time since the start of measurement once it has started acquiring captured image data.

[0029] ≪Measurement information judgment unit 122≫ When the measurement information determination unit 122 receives a signal from the operation reception unit 11 indicating the start of measurement, it performs the following processing: The measurement information determination unit 122 determines whether the measurement information 151 stored in the storage unit 15 contains data indicating physical characteristics corresponding to the person being measured in the current measurement. Furthermore, the measurement information determination unit 122 determines whether the data can be used in the current measurement.

[0030] Specifically, the measurement information determination unit 122 determines whether there is any data among the data representing the physical characteristics of the subject extracted in previous measurements that can be used to calculate a value representing the physical state of the subject in the current measurement. The measurement information determination unit 122 includes a subject determination unit 1221, an error determination unit 1222, and a period determination unit 1223.

[0031] Here, we will explain the data showing the physical characteristics of the subjects measured, which have been extracted in previous measurements. The memory unit 15 stores measurement information 151, which includes data on the physical characteristics of one or more subjects measured in previous measurements. For example, measurement information 151 may contain multiple measurement information 1511 (1511a, 1511b, ...), which are measurement data for each previous measurement. Figure 3 shows an example of measurement information 1511. As shown in Figure 3, measurement information 1511 includes the name of the subject, the date and time the measurement was taken, and pulse wave feature data extracted as physical characteristics in the measurement. The measurement information 1511 shown in Figure 3 contains pulse wave feature data extracted for two measurements of person A. The measurement information determination unit 122 can also be described as determining whether the measurement information 1511 of previous measurements contained in measurement information 151 can be used for the current measurement.

[0032] Furthermore, the measurement information 1511 may include the subject's facial image data, the number of times physical features were extracted, shooting information, a value indicating the subject's physical condition calculated from the physical features, and information indicating a measurement failure. For example, the shooting information mentioned above may include data indicating brightness, shutter speed, and ISO sensitivity. The measurement information 1511 may also include an identifier for identifying the subject in the measurement and the subject's personal information. For example, the storage unit 15 may store data where the personal information of the subject candidate is associated with the identifier. This personal information may include the subject candidate's facial image data, date of birth, name, etc. The data included in the measurement information 1511 for each measurement can be arbitrarily set.

[0033] <Measurement subject judgment unit 1221> The subject determination unit 1221 acquires the image data of the subject being measured for the current measurement from the acquisition unit 121.

[0034] As described above, the measurement information 1511 for each measurement corresponding to each subject stored in the memory unit 151 may include physical characteristic data and identification information that identifies the subject being measured. In the measurement information 1511, it can be said that the physical characteristic data is associated with identification information that identifies the subject corresponding to the physical characteristic data. Here, the identification information is, for example, the subject's facial image data or an identifier for identifying the subject.

[0035] The subject determination unit 1221 determines whether the subject identified from the image acquired in the current measurement is the same person as the subject corresponding to the physical characteristic data stored in the memory unit 151. In other words, the subject determination unit 1221 determines whether there is data for the same person between the subject identified from the image acquired in the current measurement and the subject corresponding to the measurement information 1511 for each previous measurement stored in the memory unit 151.

[0036] For example, the subject determination unit 1221 compares the facial image data of the subject in the current measurement with the facial image data of one or more subjects associated with the physical feature data extracted in previous measurements. The subject determination unit 1221 may then determine whether or not there is facial image data of the same person as the subject in the current measurement among these subjects.

[0037] Furthermore, the subject determination unit 1221 may identify the subject's identifier using the subject's facial image data from the current measurement and data that associates the facial images and identifiers of candidate subjects. The subject determination unit 1221 may also determine whether there is data for the same subject using the identified identifier and the subject's identifier associated with the physical feature data extracted in previous measurements. For example, the subject determination unit 1221 may perform the above determination process on all of the multiple measurement information 1511, which are measurement data for each previous measurement stored in the storage unit 151.

[0038] If the subject determination unit 1221 determines that there is data corresponding to the same subject being measured, it transmits data to the error determination unit 1222 that identifies the measurement information 1511 for the same subject being measured, which is stored in the storage unit 151. If the subject determination unit 1221 determines that there is no data corresponding to the same subject being measured, that is, if it determines that there is no measurement information 1511 for the same subject being measured in the storage unit 151, it transmits data to the extraction count determination unit 123 indicating that there is no usable measurement information 1511.

[0039] <Error detection unit 1222> The error determination unit 1222 determines whether the measurement information 1511 identified by the data received from the subject determination unit 1221 satisfies the following conditions: the measurement information 1511 includes extracted physical feature data, and the measurement was an error.

[0040] If the error determination unit 1222 determines that the above conditions are met, it sends data to the period determination unit 1223 that identifies the measurement information 1511 that satisfies the above conditions. If the error determination unit 1222 determines that the above conditions are not met, that is, if it determines that there is no measurement information 1511 that satisfies the above conditions in the storage unit 151, it sends data to the extraction count determination unit 123 indicating that there is no usable measurement information 1511.

[0041] <Period determination unit 1223> The period determination unit 1223 determines whether the measurement information 1511 identified by the data received from the error determination unit 1222 is measurement information measured within a predetermined period. The predetermined period is a predetermined period counting back from the start of the current measurement. For example, it could be a period counting back 10 minutes before the start of the current measurement, or a period counting back 15 minutes before the start of the current measurement, etc. The length of this period can be set arbitrarily.

[0042] If the period determination unit 1223 determines that the measurement information was measured within a predetermined period, it transmits data to the extraction count determination unit 123 that identifies the measurement information 1511 measured within the predetermined period. If the period determination unit 1223 determines that the measurement information was not measured within the predetermined period, that is, if it determines that there is no measurement information 1511 measured within the predetermined period in the storage unit 151, it transmits data to the extraction count determination unit 123 indicating that there is no measurement information 1511 available. For example, if there are multiple pieces of measurement information 1511 available for the current measurement, the period determination unit 1223 may transmit data that identifies multiple pieces of such measurement information 1511. Alternatively, the period determination unit 1223 may transmit data that identifies the most recently measured measurement information 1511 among the available measurement information 1511, or it may transmit data that identifies measurement information 1511 other than the most recently measured measurement information 1511.

[0043] ≪Extraction Count Determination Unit 123≫ The extraction count determination unit 123 counts the number of times the physical features included in the measurement information 1511 identified by the data received from the period determination unit 1223 have been extracted. For the sake of explanation, this extraction count will also be referred to as the total number of extractions to date. A detailed explanation of extraction and the number of extractions will be given later in the explanation of the extraction unit 124.

[0044] Furthermore, the extraction count determination unit 123 instructs the extraction unit 124 to perform the extraction process for the physical characteristics of the subject in the current measurement. Specifically, after counting the number of extractions to date, the extraction count determination unit 123 instructs the extraction unit 124 to perform the extraction process.

[0045] Furthermore, the extraction count determination unit 123 receives data from the extraction unit 124 indicating the completion of extraction each time the extraction unit 124 completes the extraction of physical features. Based on the data received from the extraction unit 124, the extraction count determination unit 123 counts the number of times physical features have been extracted in the current measurement. For the sake of explanation, this extraction count will also be referred to as the current extraction count.

[0046] The extraction count determination unit 123 determines whether the sum of the total number of extractions to date and the current number of extractions has reached a predetermined number. If the sum of the total number of extractions to date and the current number of extractions has not reached the predetermined number, the extraction count determination unit 123 instructs the extraction unit 124 to perform the extraction process.

[0047] If the sum of the previous extraction counts and the current extraction count reaches a predetermined number, the extraction count determination unit 123 sends an instruction to the physical state calculation unit 125 indicating that it will calculate a value indicating the physical state. The predetermined number can be, for example, three times, but it can be set arbitrarily as long as it is the number of times that the physical state calculation unit 125 can appropriately calculate a value indicating the physical state. The instruction sent to the physical state calculation unit 125 indicating that it will calculate a value indicating the physical state may include information that identifies the measurement information 1511 from previous measurements that can be used for the current measurement. Also, if the sum of the previous extraction counts and the current extraction count reaches a predetermined number, the extraction count determination unit 123 instructs the extraction unit 124 to terminate the physical feature extraction process.

[0048] The memory unit 15 may also store extraction count information 152 indicating the number of extractions to date and the current number of extractions. The extraction count determination unit 123 may be configured to recognize the current number of extractions, the number of extractions to date, and the sum of the number of extractions to date and the current number of extractions by updating the extraction count information 152 as appropriate.

[0049] ≪Extraction part 124≫ The extraction unit 124 uses the image data received from the acquisition unit 121 to perform extraction processing of the subject's physical characteristics for each measurement. The extraction unit 124 includes a pulse wave calculation unit 1241 and a feature acquisition unit 1242 that perform the physical characteristic extraction processing.

[0050] The extraction unit 124 repeatedly extracts physical features in response to instructions received from the extraction count determination unit 123 until a predetermined time has elapsed from the start of measurement. For example, the extraction count determination unit 123 may refer to the elapsed time from the start of measurement measured by the timer 14. The length of the predetermined time mentioned above can be set arbitrarily, for example to 5 seconds.

[0051] When a predetermined amount of time has elapsed since the start of measurement, or when the sum of the number of extractions to date and the current number of extractions reaches a predetermined number, the extraction unit 124 updates the measurement information 151 stored in the storage unit 15 by adding the measurement information 1511 of the current measurement.

[0052] Furthermore, if the extraction count determination unit 123 has received an instruction to perform an extraction process, and a predetermined amount of time has elapsed since the start of measurement, the extraction unit 124 terminates the extraction process and transmits data to the display control unit 126 indicating that the current measurement is an error.

[0053] <Pulse wave calculation unit 1241> The pulse wave calculation unit 1241 calculates the pulse wave data of the subject from the color changes of the subject's body surface in the captured image data. The pulse wave calculation unit 1241 may calculate, for example, waveform data for each pulse as the pulse wave data. The pulse wave calculation unit 1241 transmits the calculated pulse wave data to the feature acquisition unit 1242.

[0054] <Feature acquisition unit 1242> The feature acquisition unit 1242 acquires features from the calculated pulse wave data. These features may be, for example, the value of the highest point in the pulse wave, the value of the lowest point in the pulse wave, the slope of the waveform, the acceleration pulse wave, the time it takes to reach a predetermined value in the pulse wave, etc.

[0055] For example, if pulse wave data for one pulse can be calculated and feature quantities can be obtained from the calculated pulse wave data for one pulse, the feature quantity acquisition unit 1242 may determine that one physical feature quantity extraction has been performed, i.e., the extraction was successful. The physical feature quantities of the subject extracted by the extraction unit 124 may be a set of pulse wave data for one pulse and the feature quantities of said pulse wave data. Furthermore, if the value indicating the feature quantity obtained from the calculated pulse wave data for one pulse is not within a predetermined range, the feature quantity acquisition unit 1242 may determine that physical feature quantity extraction was not possible, i.e., the extraction failed.

[0056] Each time the feature acquisition unit 1242 successfully extracts physical features, it sends data to the extraction count determination unit 123 indicating that the extraction of physical features has been completed.

[0057] <<Physical condition calculation unit 125>> When the physical condition calculation unit (calculation unit) 125 receives an instruction from the extraction count determination unit 123 to calculate a value indicating the physical condition, it calculates a value indicating the physical condition of the person being measured. The physical condition calculation unit 125 uses the measurement information 1511 from previous measurements that can be used for the current measurement and the measurement information 1511 from the current measurement, which are identified by the information received from the extraction count determination unit 123, to calculate a value indicating the physical condition of the person being measured. The physical condition calculation unit 125 transmits the calculated data indicating the physical condition of the person being measured to the display control unit 126.

[0058] The calculation of values ​​indicating the physical condition of the subject by the physical condition calculation unit 125 can also be expressed as follows.

[0059] The physical condition calculation unit 125 calculates a value indicating the physical condition of the person being measured using the physical characteristic data extracted a predetermined number of times. Specifically, the physical condition calculation unit 125 combines the physical characteristic data extracted by the current measurement with the physical characteristic data extracted by previous measurements stored in the memory unit 151 to obtain the physical characteristic data extracted a predetermined number of times. The physical condition calculation unit 125 then uses this physical characteristic data extracted a predetermined number of times to calculate a value indicating the physical condition of the person being measured.

[0060] The physical feature data stored in the memory unit 15 may be associated with identification information that identifies the subject being measured, corresponding to the physical feature data. If the memory unit stores physical feature data corresponding to the same subject identified from the image acquired in the current measurement, the physical state calculation unit 125 may perform the following processing. The physical state calculation unit 125 combines the physical feature data extracted from the current measurement with the physical feature data corresponding to the same subject that has been extracted from previous measurements stored in the memory unit 15. The physical state calculation unit 125 then uses this combined data as physical feature data extracted a predetermined number of times. From this physical feature data extracted a predetermined number of times, the physical state calculation unit 125 calculates a value indicating the subject's physical state.

[0061] According to the above configuration, it is possible to calculate a value indicating the physical condition of a subject using the physical characteristics of the same person.

[0062] The physical condition calculation unit 125 combines the physical characteristic data extracted from the current measurement with the physical characteristic data stored in the memory unit 15 that was extracted from previous measurements within a predetermined period, to obtain physical characteristic data extracted a predetermined number of times. From this physical characteristic data extracted a predetermined number of times, the physical condition calculation unit 125 calculates a value indicating the physical condition of the person being measured.

[0063] According to the above configuration, it is possible to calculate a value that indicates the physical condition of the subject within a predetermined period.

[0064] <Display Control Unit 126> When the display control unit 126 receives data from the extraction unit 124 indicating that the current measurement is an error, it displays an image indicating the error on the display unit 16. Also, when the display control unit 126 receives data from the physical condition calculation unit 125 indicating a value representing the subject's physical condition, it causes the display control unit 126 to display an image on the display unit 16 that includes the value representing the subject's physical condition.

[0065] <Camera 13> Camera 13 is used to photograph the area around the body information measuring device 1. In this embodiment, it specifically photographs the person being measured.

[0066] <Timer 14> Timer 14 measures the elapsed time since the start of measurement by the body information measuring device 1.

[0067] <Storage section 15> The memory unit 15 stores measurement information 151, which includes data on the physical characteristics of one or more subjects extracted in previous measurements, extraction count information 152, and the like.

[0068] <Display section 16> The display unit 16 displays an image indicating that the current measurement is an error, and an image indicating a value representing the subject's physical condition calculated by the physical condition calculation unit 125. Examples of the display unit 16 include displays and monitors.

[0069] (Example of the measurement process flow in the physical information measurement device 1) Next, an example of the measurement process in the physical information measurement device 1 will be explained with reference to Figure 4. Figure 4 is a flowchart showing an example of the flow of the measurement process performed by the physical information measurement device 1. As shown in Figure 4, when the operation to start measurement is received, the subject determination unit 1221 determines whether or not data corresponding to the same subject as the subject in the current measurement is present in the measurement information 1511 for each previous measurement (S1). If the subject determination unit 1221 determines that there is data corresponding to the same person (YES in S1), the error determination unit 1222 makes the following determination. The error determination unit 1222 determines whether or not the measurement information 1511 includes extracted physical feature data and indicates that there was an error in the measurement (S2). If the error determination unit 1222 determines that the measurement information 1511 includes extracted physical feature data and indicates that there was an error in the measurement (YES in S2), the period determination unit 1223 makes the following determination. The period determination unit 1223 determines whether the measurement information 1511 is measurement information measured within a predetermined period (S3). If the period determination unit 1223 determines that the measurement information 1511 is measurement information measured within a predetermined period (YES in S3), the extraction count determination unit 123 performs the following processing. The extraction count determination unit 123 sets the number of times the physical features included in the measurement information 1511 have been extracted as the total number of extractions P in the extraction count information 152 (S4).

[0070] Furthermore, if the subject determination unit 1221 determines that there is no data corresponding to the same person (NO in S1), the extraction count determination unit 123 sets the previous extraction count p to 0 and sets it in the extraction count information 152 (S5). Also, if the error determination unit 1222 determines that the measurement information 1511 includes extracted physical feature data and does not indicate that there was an error in the measurement (NO in S2), the process proceeds to S5. Also, if the period determination unit 1223 determines that the measurement information 1511 is not measurement information measured within a predetermined period (NO in S3), the process proceeds to S5.

[0071] Following S4 and S5, the extraction count determination unit 123 sets the current extraction count c to 0 and configures the extraction count information 152 (S6). Next, the extraction unit 124 determines whether the elapsed time from the start of measurement is longer than a predetermined time, that is, whether the elapsed time from the start of measurement has exceeded a predetermined time (S7). If it is determined that the elapsed time from the start of measurement is shorter than a predetermined time (NO in S7), the extraction unit 124 performs the physical feature extraction process (S8: extraction step). Specifically, the acquisition unit 121 acquires an image of the subject in response to the measurement start operation input for each measurement (acquisition step). Then, the extraction unit 124 uses the acquired image to perform the physical feature extraction process for each measurement.

[0072] Next, the feature acquisition unit 1242 determines whether the extraction of physical features has failed (S9). If the feature acquisition unit 1242 determines that the extraction of physical features has been successful (NO in S9), the extraction count determination unit 123 adds 1 to the current extraction count c in the extraction count information 152 (S10). Next, the extraction count determination unit 123 determines whether the sum of the previous extraction count p and the current extraction count c is a predetermined number (S11). If the extraction count determination unit 123 determines that the sum is a predetermined number (YES in S11), the extraction unit 124 causes the storage unit 15 to save the measurement information 1511 of the current measurement (S12: storage step). Next, the physical state calculation unit 125 calculates a value indicating the physical state of the subject using the physical feature data extracted at a predetermined number of times (S13: calculation step). In detail, the physical condition calculation unit 125 combines the physical characteristic data extracted by the current measurement with the physical characteristic data extracted by previous measurements stored in the memory unit 15 to obtain physical characteristic data extracted a predetermined number of times. Then, using the physical characteristic data extracted a predetermined number of times, the physical condition calculation unit 125 calculates a value indicating the physical condition of the person being measured. Note that in S12, the physical condition calculation unit 125 may update the measurement information 1511 stored in the memory unit 15 to include data indicating the physical condition of the person being measured.

[0073] Next, the display control unit 126 displays an image on the display unit 16 that includes the values ​​indicating the subject's physical condition calculated by the physical condition calculation unit 125 as the measurement result (S14), and the process ends. If the feature acquisition unit 1242 determines that the extraction of physical features has failed (YES in S9), the process returns to S7. Also, if the extraction count determination unit 123 determines that the total number of extractions is not the predetermined number, that is, that the predetermined number has not been reached (NO in S11), the process returns to S7.

[0074] Furthermore, if the extraction unit 124 determines that the elapsed time since the start of measurement is longer than a predetermined time (YES in S7), the extraction unit 124 determines whether the value of the current extraction count c is greater than 0, that is, whether at least one extraction was successful in the current measurement (S15). If the extraction unit 124 determines that the value of the current extraction count c is greater than 0 (YES in S15), the extraction unit 124 stores the extracted measurement information 1511 in the storage unit 15 (S16: storage step). Subsequently, the display control unit 126 displays an image on the display unit 16 indicating that the current measurement is an error (S17), and the process ends. If the extraction unit 124 determines that the value of the current extraction count c is 0 (NO in S15), the process continues to S17.

[0075] [Embodiment 2] Other embodiments of the present invention will be described below. For the sake of convenience, components having the same function as those described in Embodiment 1 will be denoted by the same reference numerals, and their descriptions will not be repeated. One embodiment of the present invention will be described in detail below with reference to Figures 5 and 6.

[0076] (Overview of the body information measurement device 1a) First, an overview of this embodiment will be described. In this embodiment, if the number of times physical features extracted in the current measurement is less than a predetermined number within a specified time, the physical information measuring device 1a calculates a value indicating the physical state of the person being measured as follows. The physical information measuring device 1a combines the physical feature data extracted by the current measurement with the physical feature data extracted by previous measurements stored in the storage unit 15 to obtain the physical feature data extracted at a predetermined number of times or more. Then, using this physical feature data extracted at a predetermined number of times or more, the physical information measuring device 1a calculates a value indicating the physical state of the person being measured.

[0077] According to the above configuration, for example, in a configuration where the measurement time is limited and a predetermined number of feature extractions are required, the occurrence of measurement errors can be reduced.

[0078] (Configuration of body information measuring device 1a) Next, the configuration of the body information measuring device 1a will be described with reference to Figure 5. Figure 5 is a block diagram showing the main components of the body information measuring device 1a. As shown in Figure 5, the body information measuring device 1a includes an operation reception unit 11a, a control unit 12a, a camera 13, a timer 14, a storage unit 15, and a display unit 16.

[0079] <Operation reception unit 11a> The operation reception unit 11a receives the operation to start a measurement, which is entered for each measurement. Upon receiving the operation to start a measurement, the operation reception unit 11a instructs the acquisition unit 121 to acquire the captured image data taken by the camera 13. The operation reception unit 11a also instructs the extraction unit 124a to extract the physical characteristics of the subject in the current measurement. The operation reception unit 11a also instructs the extraction count determination unit 123a to count the current number of extractions.

[0080] <Control Unit 12a> The control unit 12a controls all parts of the body information measuring device 1a. As shown in Figure 5, the control unit 12a includes an acquisition unit 121, a measurement information determination unit 122a, an extraction unit 124a, an extraction count determination unit 123a, a body state calculation unit 125, and a display control unit 126a.

[0081] ≪Measurement information judgment unit 122a≫ The processing performed by the measurement information determination unit 122a will be described in a manner different from that of the measurement information determination unit 122 described in Embodiment 1.

[0082] When the measurement information determination unit 122a receives an instruction to start determination from the extraction unit 124a, it determines whether the measurement information 151 stored in the storage unit 15 contains data indicating physical characteristics corresponding to the person being measured by the current measurement. Furthermore, the measurement information determination unit 122a determines whether the data can be used for the current measurement. The details of the determination made by the measurement information determination unit 122a are the same as those made by the measurement information determination unit 122, so they will not be repeated here.

[0083] ≪Extraction Count Determination Unit 123a≫ The following describes the processing performed by the extraction count determination unit 123a, which differs from the extraction count determination unit 123 described in Embodiment 1.

[0084] The extraction count determination unit 123a determines whether the current number of extractions has reached a predetermined number. If the current number of extractions has not reached a predetermined number, the extraction count determination unit 123a instructs the extraction unit 124a to continue the extraction process. If the current number of extractions is the predetermined number, that is, if the current number of extractions has reached a predetermined number, the extraction count determination unit 123a instructs the extraction unit 124a to terminate the physical feature extraction process.

[0085] Furthermore, if a predetermined time has elapsed since the start of measurement and the current number of extractions has not reached a predetermined number, the extraction count determination unit 123a performs the following processing. The extraction count determination unit 123a determines whether the number of extractions indicated by the measurement information 1511 that the measurement information determination unit 122a has determined to be usable for the current measurement, that is, the sum of the number of extractions so far and the current number of extractions, is equal to or greater than a predetermined number.

[0086] If the total number of times is determined to be greater than or equal to a predetermined number, the extraction count determination unit 123a sends an instruction to the physical condition calculation unit 125 to calculate a value indicating the physical condition. This instruction may include information that identifies the measurement information 1511 from previous measurements that can be used for the current measurement.

[0087] If the total number of measurements has not reached a predetermined number, the extraction count determination unit 123a sends data to the display control unit 126a indicating that the current measurement is an error.

[0088] ≪Extraction part 124a≫ The processing performed by the extraction unit 124a will be described in a manner different from that of the extraction unit 124 described in Embodiment 1.

[0089] The extraction unit 124a repeatedly extracts physical features in response to instructions received from the operation reception unit 11a and the extraction count determination unit 123a until a predetermined time (specified time) has elapsed from the start of measurement.

[0090] When a predetermined time has elapsed since the start of measurement, or when the current number of extractions reaches a predetermined number, the extraction unit 124a updates the measurement information 151 stored in the storage unit 15 by adding the measurement information 1511 of the current measurement.

[0091] As described above, in this embodiment, the extraction count determination unit 123a may transmit data to the display control unit 126a indicating that the current measurement is an error.

[0092] If the extraction count determination unit 123a has received an instruction to perform the extraction process, and a predetermined time has elapsed since the start of measurement, the extraction unit 124a terminates the extraction process. The extraction unit 124a then transmits an instruction to the measurement information determination unit 122a to start the determination.

[0093] ≪Display Control Unit 126a≫ When the display control unit 126a receives data from the extraction count determination unit 123a indicating that the current measurement is an error, it displays an image indicating the error on the display unit 16.

[0094] (Example of the measurement process flow in the body information measurement device 1a) Next, an example of the measurement process in the body information measuring device 1a will be described with reference to Figure 6. Figure 6 is a flowchart showing an example of the flow of the measurement process performed by the body information measuring device 1a. Note that the same reference numerals are used for each process described in Embodiment 1, and detailed explanations will not be repeated here.

[0095] As shown in Figure 6, when the operation to start measurement is received, the extraction count determination unit 123a sets the current extraction count c as 0 and sets it in the extraction count information 152 (S6). Subsequently, the processes from S7 to S10 described in Embodiment 1 are performed. Following the process in S10, the extraction count determination unit 123a determines whether the current extraction count c is a predetermined number (S20a). If the extraction count determination unit 123a determines that the current extraction count c is a predetermined number (YES in S20a), the processes from S12 to S14 described in Embodiment 1 are performed and the process ends. If the extraction count determination unit 123a determines that the current extraction count c is not a predetermined number, that is, has not reached a predetermined number (NO in S20a), the process returns to S7.

[0096] Furthermore, if the extraction unit 124a determines that the elapsed time since the start of measurement is longer than a predetermined time (YES in S7), the extraction unit 124a determines whether the value of the current extraction count c is greater than 0 (S15). If the extraction unit 124a determines that the value of the current extraction count c is greater than 0 (YES in S15), the extraction unit 124a stores the measurement information extracted in the measurement information 1511 of the current measurement in the storage unit 15 (S16).

[0097] Next, the determination processes S1 to S3 are performed, which determine whether the measurement information 1511 from previous measurements stored in the memory unit 15, as described in Embodiment 1, can be used for the current measurement. If the determination process in S1 to S3 determines NO, that is, if it is determined that the measurement information 1511 from previous measurements cannot be used, in Embodiment 1, the number of previous extractions P is set to 0 (S5 in Figure 4). On the other hand, in this embodiment, if the determination process in S1 to S3 determines NO, the display control unit 126a displays an image on the display unit 16 indicating that the current measurement is an error (S17), and the process ends.

[0098] Furthermore, if the judgment process in S3 determines that YES, that is, if it is determined that there is usable measurement information 1511 in the measurement information 1511 from the previous measurements, the extraction count determination unit 123a performs the following processing. The extraction count determination unit 123a sets the number of times the physical features included in the measurement information 1511 that was judged YES in the judgments from S1 to S3 has been extracted as the previous extraction count P in the extraction count information 152 (S4). Next, the extraction count determination unit 123a determines whether the sum of the previous extraction count p and the current extraction count c is equal to or greater than a predetermined number (S21a). If the extraction count determination unit 123a determines that the sum is equal to or greater than a predetermined number (YES in S21a), the process continues to S13. If the extraction count determination unit 123a determines that the total number is not equal to or greater than a predetermined number, that is, that it has not reached the predetermined number (NO in S21a), the process continues to S17.

[0099] (Variation 1) The modified body information measuring device 1 or body information measuring device 1a receives an operation input, for example, from the operation reception unit 11 or 11a, indicating that it will use feature data representing physical characteristics extracted in previous measurements. Upon receiving this operation input, the body state calculation unit 125 combines the data of physical characteristics extracted from the current measurement with the data of physical characteristics extracted from the most recent measurement stored in the memory unit 15 to obtain data of physical characteristics extracted a predetermined number of times or more. The body state calculation unit 125 then uses this data of physical characteristics to calculate a value indicating the physical state of the person being measured.

[0100] In other words, the body information measuring device 1 or body information measuring device 1a of this modified version does not determine whether the measurement information 1511 from previous measurements can be used in the current measurement. The body information measuring device 1 or body information measuring device 1a of this modified version uses the measurement information 1511 from the most recent measurement in the current measurement, in response to the operator's input.

[0101] According to the above configuration, the body information measuring device 1 or body information measuring device 1a can calculate a value indicating the physical state using physical characteristics extracted in the most recent measurement, in response to the operator's input.

[0102] (Modification 2) (Body information measurement system 10b) The physical information measurement system 10b of this modified example 2 will be explained with reference to Figure 7.

[0103] Figure 7 shows an example of the physical information measurement system 10b according to this modified example 2. As shown in Figure 7, the physical information measurement system 10b includes a physical information measurement device 1b and a server device 3b.

[0104] <Physical information measuring device 1b> The body information measuring device 1b performs the same measurement processing as the body information measuring device 1 of Embodiment 1 or the body information measuring device 1a of Embodiment 2, but its own storage unit does not store the measurement information 151. The body information measuring device 1b stores the measurement information 151 in the server device 3b via communication over the network 2b. The body information measuring device 1b also obtains the measurement information 151 from the server device 3b via communication over the network 2b.

[0105] <Server device 3b> The server device 3b includes a storage unit 31 that stores measurement information 151. The server device 3b can be exemplified by a cloud server.

[0106] Furthermore, the physical information measurement system 10b may be a thin client system. In this system, the physical information measurement device 1b may only perform the process of acquiring captured image data and the process of displaying the measurement. Also, the server device 3b may perform processes other than acquisition and display in the physical information measurement device 1 of Embodiment 1 or the physical information measurement device 1a of Embodiment 2.

[0107] [Examples of implementation using software] The functions of the body information measuring devices 1, 1a, and 1b (hereinafter referred to as "devices") can be realized by programs that cause a computer to function as the device, and by programs that cause a computer to function as each control block of the device (particularly each part included in the control units 12 and 12a).

[0108] In this case, the device includes a computer having at least one control device (e.g., a processor) and at least one storage device (e.g., memory) as hardware for executing the program. By executing the program using this control device and storage device, the functions described in each of the embodiments are realized.

[0109] The above program may be recorded on one or more computer-readable recording media, not temporary ones. These recording media may or may not be provided by the above device. In the latter case, the program may be supplied to the above device via any wired or wireless transmission medium.

[0110] Furthermore, some or all of the functions of each of the above control blocks can also be realized by logic circuits. For example, an integrated circuit in which logic circuits functioning as each of the above control blocks are formed is also included in the scope of the present invention. In addition, it is also possible to realize the functions of each of the above control blocks by, for example, a quantum computer.

[0111] Furthermore, each process described in the above embodiments may be performed by AI (Artificial Intelligence). In this case, the AI ​​may operate on the control device described above, or it may operate on other devices (for example, an edge computer or a cloud server).

[0112] 〔summary〕 The physical information measuring devices 1, 1a, and 1b according to Embodiment 1 of the present invention include: an acquisition unit 121 that acquires an image of a person to be measured in response to a measurement start operation input for each measurement; an extraction unit 124 and 124a that uses the acquired image to perform an extraction process of the physical characteristics of the person to be measured for each measurement; a storage unit 15 that stores the data of the physical characteristics extracted in previous measurements; and a calculation unit (physical condition calculation unit 125) that calculates a value indicating the physical condition of the person to be measured using the data of the physical characteristics extracted a predetermined number of times or more. The calculation unit combines the data of the physical characteristics extracted in the current measurement with the data of the physical characteristics extracted in previous measurements stored in the storage unit to calculate a value indicating the physical condition of the person to be measured as the data of the physical characteristics extracted a predetermined number of times or more.

[0113] According to the above configuration, the system extracts physical features from captured images, that is, it uses non-contact measurement to combine the physical feature data extracted by the current measurement with the physical feature data extracted and stored in the memory unit from previous measurements. Then, using this combined data as physical feature data extracted a predetermined number of times or more, a value indicating the physical condition of the person being measured is calculated.

[0114] Therefore, in current non-contact measurements, the physical condition of the person being measured can be calculated even if the extraction of physical features has not reached a predetermined number of times.

[0115] Therefore, it is possible to reduce the occurrence of measurement errors that occur in current non-contact measurement methods because the extraction of physical features does not reach a predetermined number of times. In addition, it is possible to reduce the length of measurement time that occurs in current non-contact measurement methods because the extraction of physical features does not reach a predetermined number of times.

[0116] In the physical information measuring devices 1a and 1b according to aspect 2 of the present invention, in aspect 1, if the number of times the physical characteristics are extracted in the current measurement is less than the predetermined number of times within a specified time, the calculation unit may combine the data of the physical characteristics extracted by the current measurement with the data of the physical characteristics extracted by previous measurements stored in the storage unit, and calculate a value indicating the physical state of the person being measured as data of the physical characteristics extracted at least the predetermined number of times.

[0117] According to the above configuration, for example, in a configuration where measurement time is limited and a predetermined number of physical feature extractions are required, the occurrence of measurement errors can be reduced.

[0118] In the physical information measuring devices 1, 1a and 1b according to aspect 3 of the present invention, in aspect 1 or 2, the data of physical characteristics stored in the storage unit is associated with identification information that identifies the person being measured corresponding to the data of physical characteristics, and if the data of physical characteristics corresponding to the same person being measured as the person identified from the image captured in the current measurement is stored in the storage unit, the calculation unit may calculate a value indicating the physical state of the person being measured by combining the data of physical characteristics extracted by the current measurement and the data of physical characteristics corresponding to the same person being measured that has been extracted by previous measurements stored in the storage unit, as the data of physical characteristics extracted a predetermined number of times or more.

[0119] According to the above configuration, it is possible to calculate a value indicating a person's physical condition using the physical characteristics of the same individual.

[0120] In any one embodiment of embodiments 1 to 3 above, when the physical information measuring devices 1, 1a and 1b receive an input indicating the use of feature data representing the physical characteristics extracted in previous measurements, the calculation unit may combine the data representing the physical characteristics extracted in the current measurement with the data representing the physical characteristics extracted in the most recent measurement stored in the storage unit, and calculate a value representing the physical state of the person being measured as data representing the physical characteristics extracted a predetermined number of times or more.

[0121] According to the above configuration, a value indicating the physical state can be calculated using physical characteristics extracted in the most recent measurement, in response to the operator's input.

[0122] The physical information measuring devices 1, 1a, and 1b according to aspect 5 of the present invention, in any one of aspects 1 to 3 above, the calculation unit combines the data of physical characteristics extracted by the current measurement with the data of physical characteristics extracted by previous measurements within a predetermined period stored in the storage unit, and calculates a value indicating the physical state of the person being measured as data of physical characteristics extracted a predetermined number of times or more.

[0123] According to the above configuration, it is possible to calculate a value that indicates the physical condition of the subject within a predetermined period.

[0124] A control method for a physical information measuring device according to aspect 6 of the present invention includes, in response to a measurement start operation input for each measurement, an acquisition step of acquiring an image of the person to be measured; an extraction step (S8) of performing an extraction process of the physical characteristics of the person to be measured for each measurement using the acquired image; a storage step (S12, S16) of storing the data of the physical characteristics extracted in previous measurements; and a calculation step (S13) of calculating a value indicating the physical state of the person to be measured using the data of the physical characteristics extracted a predetermined number of times or more. In the calculation step, the data of the physical characteristics extracted by the current measurement and the data of the physical characteristics extracted by previous measurements stored in the storage step are combined to calculate a value indicating the physical state of the person to be measured as the data of the physical characteristics extracted a predetermined number of times or more. The above configuration provides the same effects as aspect 1.

[0125] Each aspect of the present invention may be implemented by a computer, in which case a control program for a body information measuring device that implements the body information measuring device by a computer by operating the computer as each part (software element) of the body information measuring device, and a computer-readable recording medium on which the program is recorded, also fall within the scope of the present invention.

[0126] The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment. [Explanation of Symbols]

[0127] 1, 1a, 1b Physical information measuring device 15 Storage section 124, 124a Extraction part 125 Physical Condition Calculation Unit (Calculation Unit) S8 Extraction Step S12, S16 Memory Steps S13 Calculation Step

Claims

1. An acquisition unit acquires an image of the subject in response to the measurement start operation entered for each measurement, An extraction unit that uses the acquired image to perform an extraction process for the physical characteristics of the person being measured for each measurement, A storage unit for storing the data of the physical characteristics extracted in the aforementioned measurements, The system includes a calculation unit that calculates a value indicating the physical condition of the subject using the physical characteristic data extracted a predetermined number of times or more, The calculation unit, when the number of times the physical characteristics have been successfully extracted in the current measurement has reached the predetermined number of times, calculates a value indicating the physical condition of the person being measured, using the data of the physical characteristics extracted by the current measurement as data of the physical characteristics extracted more than the predetermined number of times. If the number of times the physical characteristics have been successfully extracted in the current measurement has not reached the predetermined number, the calculation unit combines the physical characteristics data extracted by the current measurement with the physical characteristics data extracted by previous measurements stored in the storage unit, and calculates a value indicating the physical condition of the person being measured as physical characteristics data extracted at least the predetermined number of times. A body information measuring device characterized by the following features.

2. In the current measurement, if the number of times the physical characteristics are successfully extracted within a specified time is less than the predetermined number, the calculation unit combines the physical characteristics data extracted by the current measurement with the physical characteristics data extracted by previous measurements stored in the storage unit, and calculates a value indicating the physical condition of the person being measured as physical characteristics data extracted at least the predetermined number of times. The physical information measuring device according to feature 1.

3. The physical characteristic data stored in the memory unit is associated with identification information that identifies the person being measured, which corresponds to the physical characteristic data. If the storage unit stores physical characteristic data corresponding to the same subject identified from the captured image acquired in the current measurement, the calculation unit combines the physical characteristic data extracted by the current measurement with the physical characteristic data corresponding to the same subject extracted by previous measurements stored in the storage unit, and calculates a value indicating the subject's physical condition as the physical characteristic data extracted a predetermined number of times or more. The physical information measuring device according to feature 1.

4. When an operation input is received indicating that feature data representing the physical features extracted in the aforementioned measurements will be used, The calculation unit combines the physical characteristic data extracted by the current measurement with the physical characteristic data extracted by the most recent measurement stored in the memory unit, and calculates a value indicating the physical condition of the person being measured, using the physical characteristic data extracted a predetermined number of times or more. The physical information measuring device according to feature 1.

5. The calculation unit combines the physical characteristic data extracted by the current measurement with the physical characteristic data extracted by previous measurements within a predetermined period stored in the memory unit, and calculates a value indicating the physical condition of the person being measured, using the physical characteristic data extracted a predetermined number of times or more. The physical information measuring device according to feature 1.

6. In response to the measurement start operation entered for each measurement, there is an acquisition step to acquire an image of the subject being measured, An extraction step is performed using the acquired captured image to extract the physical characteristics of the person being measured for each measurement, A storage step for storing the data of the physical characteristics extracted in the aforementioned measurements, The calculation step includes calculating a value indicating the physical condition of the subject using the physical characteristic data extracted a predetermined number of times or more, In the calculation step described above, if the number of times the physical characteristics have been successfully extracted in the current measurement has reached the predetermined number of times, the data of the physical characteristics extracted by the current measurement is used as the data of the physical characteristics extracted more than the predetermined number of times to calculate a value indicating the physical condition of the person being measured. In the calculation step, if the number of times the physical characteristics have been successfully extracted in the current measurement has not reached the predetermined number, the data of the physical characteristics extracted by the current measurement and the data of the physical characteristics extracted by previous measurements stored in the storage step are combined to calculate a value indicating the physical condition of the person being measured, based on the data of the physical characteristics extracted at least the predetermined number of times. A control method for a body information measuring device, characterized by the following:

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