Biological information measurement device, biological information measurement method, and program

Abstract

To improve usability in measurement of biological information.SOLUTION: A biological information measurement device has a placement surface on which a subject to be measured can be placed and comprises: a first measurement section that performs at least one of first measurement processing for measuring a state of a sole of a foot of the subject to be measured who has been placed on the placement surface and second measurement processing for measuring body movement of the subject to be measured who has been placed on the placement surface; and a second measurement section that selects, on the basis of at least one of a measurement result of the first measurement processing and a measurement result of the second measurement processing, at least one measurement item from among a plurality of measurement items about a living body of the subject to be measured and measures biological information on the subject to be measured.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a biological information measuring device, a biological information measuring method, and a program. [Background technology]

[0002] Patent Document 1 discloses a technology for automatically switching impedance measurement modes depending on the measurement state of the subject. Patent Document 2 discloses a technology for automatically determining whether the subject is a human or an animal based on the contact state between the soles of the subject's feet and measurement electrodes, measuring the corresponding impedance, and calculating body composition data based on the impedance. Patent Document 3 discloses a technology for measuring the cardiovascular characteristics of a user. Patent Document 4 discloses a visceral fat meter that displays visceral fat information, which is equipped with a setting registration key for setting and registering unique biological information about the body and time, a personal key for calling up and measuring unique biological information about the body, and a dedicated weight key for measuring only weight. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-230120 [Patent Document 2] Japanese Patent Application Laid-Open No. 2005-230392 [Patent Document 3] Special Publication No. 2014-507213 [Patent Document 4] Japanese Patent Application Laid-Open No. 2002-238870 Summary of the Invention [Problem to be solved by the invention]

[0004] Typical body composition scales have a load cell and electrodes that contact the human body. These devices measure weight and bioimpedance, displaying results related to weight and various body composition parameters. These measurements take only a few seconds, and body movements such as head movements during the measurement to check the measurement progress displayed at the user's feet have little effect on the results. On the other hand, when a body composition scale is equipped with features such as BCG (ballistocardiogram) measurements from the load cell and IPG (impedance pulse wave) measurements from the electrodes to provide the user with cardiovascular status information, body movements caused by head or arm movements during measurement significantly affect the results, resulting in longer measurement times or even measurement errors requiring remeasurements. Furthermore, body composition scales typically collect a series of data simultaneously, with all measurement results displayed sequentially after a specified measurement time has elapsed. Therefore, the more measurement items are added, the longer the measurement time, including the time required to display the results. However, in cases where a body composition scale is shared by a family, the only item being monitored may be weight, and the measurement items may be limited to weight. For example, if a body composition monitor is provided with a dedicated key for weight, as in Patent Document 4, an additional key is required, and key operation before measurement is tedious, reducing usability. Furthermore, when measuring only weight, it is assumed that the subject will stand on the body composition monitor while wearing socks. In this case, the subject's bioimpedance cannot be measured, resulting in measurement errors and reducing usability.

[0005] The present invention has been made in view of the above circumstances, and aims to improve usability in measuring biological information. [Means for solving the problem]

[0006] According to one aspect of the present invention, there is provided a biological information measuring device having a placement surface on which a person to be measured can stand, the biological information measuring device comprising: a first measurement process for measuring a state of the soles of the feet of the person to be measured who is placed on the placement surface; and a second measurement unit that measures biological information of the subject by selecting at least one measurement item from a plurality of measurement items related to the subject's living body based on at least one of the measurement results of the first measurement process and the measurement results of the second measurement process. According to the above biological information measurement device, at least one measurement item from a plurality of measurement items related to the subject's living body is selected in accordance with the condition of the soles of the subject's feet and the subject's living body movement, and the biological information of the subject is measured, thereby improving usability in measuring biological information.

[0007] The plurality of measurement items include a measurement item for measuring the weight of the person being measured who is placed on the surface, and a sensor for measuring the body movement of the person being measured who is placed on the surface is used as both a sensor for measuring the weight of the person being measured who is placed on the surface, thereby enabling cost reduction.

[0008] The plurality of measurement items include a measurement item that is measured using a sensor that measures the body movement of the person being measured who is placed on the placement surface. The sensor that measures the body movement of the person being measured may be a load cell. Measurement items that are measured using a load cell include a measurement item that measures weight, a measurement item that measures standing balance, and a measurement item that measures cardiovascular status. Standing balance is, for example, the balance of the person being measured when standing.

[0009] The first measurement unit performs the first measurement process and the second measurement process, and if the measurement result of the first measurement process includes a result indicating that the person being measured is not barefoot and includes a result indicating that the person being measured is not continuing to be stationary, the second measurement unit selects a measurement item to measure weight from the multiple measurement items and measures the biological information of the person being measured. Because only the person's weight is measured and no measurements are made of the other measurement items, the time from start to completion of measurement of the person's biological information is shortened.

[0010] The first measurement unit performs the first measurement process and the second measurement process, and if the measurement result of the first measurement process includes a result indicating that the subject is barefoot and a result indicating that the subject is not continuously stationary, the second measurement unit selects at least one measurement item from the multiple measurement items that can be measured when the subject is not stationary, and measures the subject's biological information. Measurement items that can be measured when the subject is not stationary include, for example, a measurement item that measures body weight and a measurement item that measures body composition. Since the subject's weight and body composition are measured and other measurement items are not measured, the time from start to completion of measurement of the subject's biological information is shortened.

[0011] The first measurement unit performs the first measurement process and the second measurement process, and if the measurement result of the first measurement process includes a result indicating that the subject is not barefoot and includes a result indicating that the subject is continuing to remain motionless, the second measurement unit selects at least one measurement item from the multiple measurement items that can be measured without using the measurement result of bioelectrical impedance, and measures the bioinformation of the subject. The measurement items that can be measured without using the measurement result of bioelectrical impedance are a measurement item that measures body weight and a measurement item that measures standing balance. Because the weight and standing balance of the subject are measured and other measurement items are not measured, the time from start to completion of measurement of the bioinformation of the subject is shortened.

[0012] The first measurement unit performs the first measurement process and the second measurement process, and if the measurement result of the first measurement process includes a result indicating that the person being measured is barefoot, and if the measurement result of the second measurement process includes a result indicating that the person being measured is continuing to be stationary, If the measurement includes the above, the second measurement unit selects all of the measurement items from the plurality of measurement items and measures the biological information of the subject. If the subject stands barefoot on the mounting surface of the biological information measurement device and remains stationary, the subject is considered to have an intention to have all of the measurement items from the plurality of measurement items measured, and the biological information of the subject is measured.

[0013] The above-mentioned biological information measuring device includes a display unit that displays information, and the display unit does not display the information while the measurement process is being performed by the second measurement unit. The subject's actions of looking at the information displayed on the display unit, such as moving their head, can affect the measurement of their cardiovascular condition. By having the display unit not display information while the measurement process is being performed by the second measurement unit, the subject's body movements can be suppressed, improving the accuracy of measuring their cardiovascular condition.

[0014] The biological information measuring device includes a temperature measuring unit that measures the temperature of the soles of the feet of the subject placed on the placement surface. When the temperature of the feet of the subject is below a predetermined temperature, the first measuring unit performs the second measurement process, and the second measuring unit selects at least one measurement item from the multiple measurement items that can be measured without using bioimpedance measurement results based on the measurement results of the second measurement process, and measures the biological information of the subject. When the soles of the feet of the subject placed on the placement surface of the biological information measuring device are at a low temperature, the accuracy of measuring the condition of the soles of the feet of the subject using multiple electrodes decreases, and there is a possibility that the subject may be erroneously determined to be not barefoot even when they are. When the temperature of the soles of the feet of the subject placed on the placement surface of the biological information measuring device is below a predetermined temperature, the first measuring unit does not perform the first measurement process, thereby avoiding erroneous determination.

[0015] The present invention can also be understood as a biological information measurement method in which a computer executes at least a part of the above-mentioned processes, a biological information measurement method including at least a part of the above-mentioned processes, a program for causing a computer to execute at least a part of the above-mentioned processes, or a computer-readable recording medium on which such a program is non-temporarily recorded. The above-mentioned configurations and processes can be combined with each other to constitute the present invention as long as no technical contradiction occurs. [Effects of the Invention]

[0016] According to the present invention, it is possible to improve usability in measuring biological information. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic diagram of a biological information measuring device according to an embodiment. [Figure 2] FIG. 2 is a block diagram showing the configuration of the biological information measuring device according to the embodiment. [Figure 3] FIG. 3 is a diagram showing an arrangement of a plurality of load cells. [Figure 4] FIG. 4 is a diagram showing the arrangement of a plurality of load cells and acceleration sensors. [Figure 5] FIG. 5 is a block diagram showing the functional configuration of the control unit. [Figure 6] FIG. 6 is a diagram illustrating the relationship between the BCG waveform, the foot IPG waveform, and the PTT. [Figure 7] FIG. 7 is a flowchart illustrating a first operation of the biological information measuring device. [Figure 8] FIG. 8 is a schematic configuration diagram of a biological information measuring device according to an embodiment. [Figure 9] FIG. 9 is a diagram showing the arrangement of photoelectric sensors. [Figure 10] FIG. 10 is an explanatory diagram of a case where a photoelectric sensor measures the amount of light received and determines whether or not the person being measured is barefoot. [Figure 11]FIG. 11 is an explanatory diagram of a case where a photoelectric sensor measures the amount of light received and determines whether or not a person being measured is barefoot. [Figure 12] FIG. 12 is an explanatory diagram of a case where a photoelectric sensor measures the amount of light received and determines whether or not the person being measured is barefoot. [Figure 13] FIG. 13 is a flowchart illustrating a second operation of the biological information measuring device. [Figure 14] FIG. 14 is a flowchart illustrating the third operation of the biological information measuring device. [Figure 15] 10 is a time chart of the process of measuring the sole condition, the process of measuring body movement, the process of measuring weight, the process of measuring body composition, the process of measuring standing balance, and the process of measuring cardiovascular condition. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, embodiments will be described with reference to the drawings. The embodiment described below is one aspect of the present application and does not limit the scope of the present application.

[0019] 1 is a schematic diagram of a biological information measuring device 1 according to an embodiment. The biological information measuring device 1 includes a display unit 10, an operation unit 11, current application electrodes 12 and 13, and voltage measurement electrodes 14 and 15.

[0020] Biological information measuring device 1 has a surface (rest surface) on which a person to be measured, such as a user, can stand. Current-applying electrode 12 and voltage-measuring electrode 14 are arranged on the surface of biological information measuring device 1 so that, when a person to be measured, such as a user, stands on the surface of biological information measuring device 1, the tip end (toe side) of the sole of the left foot comes into contact with current-applying electrode 12 and the rear end (heel side) of the sole of the left foot comes into contact with voltage-measuring electrode 14. Current-applying electrode 13 and voltage-measuring electrode 15 are arranged on the surface of biological information measuring device 1 so that, when a person to be measured, such as a user, comes into contact with current-applying electrode 13 and the rear end (heel side) of the sole of the right foot comes into contact with voltage-measuring electrode 15. The positions of current-applying electrode 12 and voltage-measuring electrode 14 may be reversed, or the positions of current-applying electrode 13 and voltage-measuring electrode 15 may be reversed.

[0021] A display unit 10 is provided on the surface of the biological information measuring device 1. The display unit 10 is disposed between the current application electrodes 12 and 13. An operation unit 11 is provided in the center of the surface of the biological information measuring device 1. The person being measured stands on the surface of the biological information measuring device 1 so that the front and rear ends of the sole of the person's left foot are in contact with the current application electrode 12 and the voltage measurement electrode 14, respectively, and the front and rear ends of the sole of the person's right foot are in contact with the current application electrode 13 and the voltage measurement electrode 15, respectively.

[0022] The operation unit 11 has switches 110 to 113. The switch 110 is a switch that accepts input of instructions to turn on or off the power of the biological information measurement device 1 and instructions to start and end measurement. The switch 111 is a switch that accepts instructions to display various data stored in the biological information measurement device 1 on the display unit 10. The switches 112 and 113 are switches that accept selection of various data displayed on the display unit 10. The switches 111 to 113 are also used to accept data input.

[0023] 2 is a block diagram showing the configuration of a biological information measuring device 1 according to an embodiment. The biological information measuring device 1 includes a display unit 10, an operation unit 11, a control unit 20, an electrode unit 21, an impedance measurement unit 22, a first sensor unit 23, a second sensor unit 24, a temperature measurement unit 25, a communication unit 26, and a storage unit 27. The display unit 10 may include, for example, an LCD (Liquid Crystal Display). LCD panels such as LCDs and EL (Electroluminescence) displays are used. The display unit 10 displays the measurement results and various information and data. The operation unit 11 accepts operations from the subject.

[0024] The control unit 20 is a control device (controller) that controls the overall operation of the biological information measurement device 1. The control unit 20 may be configured as a dedicated device or as a general-purpose computer. The control unit 20 includes a CPU (Central Processing Unit), memory, storage, and the like. The control unit 20 includes hardware resources such as RAM (Random Access Memory). The storage may be a non-volatile storage device such as ROM (Read Only Memory) or flash memory. The functions of each processing unit (functional unit) of the control unit 20 are realized by loading a program stored in the storage into the memory and executing it with a processor. Note that the configuration of the control unit 20 is not limited to this. For example, all or part of the functions of the control unit 20 may be configured using circuits such as ASIC or FPGA, or all or part of the functions of the control unit 20 may be executed by a cloud server or other device.

[0025] The electrode unit 21 includes current application electrodes 12 and 13 for applying a constant current to the subject's body to measure the subject's bioimpedance, and voltage measurement electrodes 14 and 15 for measuring the voltage when the current is applied. The electrode unit 21 may include electrodes other than the current application electrodes 12 and 13 and the voltage measurement electrodes 14 and 15. The impedance measurement unit 22 measures the subject's bioimpedance based on the values ​​of the current applied to the subject's body from the current application electrodes 12 and 13 and the voltage measured by the voltage measurement electrodes 14 and 15. The impedance measurement unit 22 outputs the subject's bioimpedance to the control unit 20. The impedance measurement unit 22 may output the subject's bioimpedance as an impedance pulse wave.

[0026] The first sensor unit 23 has a photoelectric sensor. The first sensor unit 23 outputs a measurement value measured by the photoelectric sensor to the control unit 20. The second sensor unit 24 has a plurality of load cells (strain gauges). The second sensor unit 24 outputs a measurement value measured by the plurality of load cells to the control unit 20.

[0027] 3 is a diagram showing the arrangement of a plurality of load cells. As shown in FIG. 3, load cells 31 to 34 are arranged on the rear side of the biological information measuring device 1. The load cells 31 to 34 are arranged at the four corners on the rear side of the biological information measuring device 1. The second sensor unit 24 may have an acceleration sensor. The second sensor unit 24 may output a measurement value measured by the acceleration sensor to the control unit 20.

[0028] Fig. 4 is a diagram showing the arrangement of multiple load cells and acceleration sensors. As shown in Fig. 4, load cells 31 to 34 and acceleration sensor 35 are arranged on the rear side of biological information measuring device 1. Load cells 31 to 34 are arranged at the four corners on the rear side of biological information measuring device 1. Acceleration sensor 35 is arranged in the center of the rear side of biological information measuring device 1.

[0029] The temperature measurement unit 25 measures the temperature of the soles of the feet of the subject who is placed on the surface of the biological information measurement device 1. The temperature measurement unit 25 has a temperature sensor. The temperature sensor is arranged on the surface of the biological information measurement device 1. The temperature sensor may be arranged near the current application electrodes 12, 13, or near the voltage measurement electrodes 14, 15. The communication unit 26 is an interface for performing communication via wire or wirelessly. The communication unit 26 communicates with an information processing device of the subject. The information processing device is, for example, a mobile terminal, a smartphone, a tablet terminal, a personal computer, etc.

[0030] The storage unit 27 stores information and data. The storage unit 27 may have at least one of a memory such as a RAM and a storage. The storage may be a non-volatile storage device such as a ROM or a flash memory. The storage unit 27 stores various information such as personal data of the subject and the measurement results of the biological information measurement device 1. The personal data is used to calculate the subject's body composition. The personal data includes at least the height and weight of the person being measured, and may also include the age and gender of the person being measured, as well as other information. The person being measured stands on the surface of the biological information measuring device 1, and the person being measured operates the operating unit 11, whereby the person being measured's height, age, gender, and other information are input to the biological information measuring device 1.

[0031] 5 is a block diagram showing the functional configuration of the control unit 20. The control unit 20 includes a first measurement unit 41 and a second measurement unit 42. The first measurement unit 41 includes a sole condition measurement unit 51 and a body movement measurement unit 52. The second measurement unit 42 includes a weight measurement unit 53, a body composition measurement unit 54, a standing balance measurement unit 55, and a cardiovascular measurement unit 56.

[0032] The sole condition measuring unit 51 measures the condition of the soles of the feet of the person being measured who is standing on the surface of the biological information measuring device 1, based on measurement values ​​output from at least one of the electrode unit 21 and the first sensor unit 23. The body movement measuring unit 52 measures the body movement of the person being measured who is standing on the surface of the biological information measuring device 1, based on measurement values ​​output from at least one of the first sensor unit 23, the second sensor unit 24, and the electrode unit 21. The weight measuring unit 53 measures the weight of the person being measured who is standing on the surface of the biological information measuring device 1, based on measurement values ​​output from the second sensor unit 24.

[0033] The body composition measurement unit 54 measures the body composition of the subject placed on the surface of the biological information measurement device 1 based on the subject's personal data, the bioimpedance output from the impedance measurement unit 22, and the subject's weight according to a predetermined algorithm. Body composition is an index indicating the proportion or amount of components that make up the body. Examples of body composition include, but are not limited to, body fat percentage, visceral fat level, skeletal muscle percentage, basal metabolic rate, body age, BMI, muscle percentage, muscle mass, body fat mass, bone mass, and water content. The subject's personal data includes previously measured weight and bioimpedance. The body composition measurement unit 54 may identify the subject by comparing previously measured weight and bioimpedance with the currently measured weight and bioimpedance. The body composition measurement unit 54 acquires the identified subject's personal data from the storage unit 27.

[0034] The standing balance measurement unit 55 measures the balance (standing balance) of the person being measured while standing on the surface of the biological information measurement device 1, based on the measurement value output from the second sensor unit 24. The standing balance measurement unit 55 may measure the standing balance of the person being measured by calculating the position of the center of gravity of the person being measured while standing. The standing balance measurement unit 55 may measure the standing balance of the person being measured according to a predetermined algorithm.

[0035] The cardiovascular measurement unit 56 measures the cardiovascular condition of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement values ​​output from the second sensor unit 24 and the bioimpedance output from the impedance measurement unit 22 in accordance with a predetermined algorithm. The cardiovascular measurement unit 56 measures a BCG (ballistocardiogram), which is the vibration of blood pumped from the heart, based on the measurement values ​​output from the second sensor unit 24. The cardiovascular measurement unit 56 measures a leg IPG (impedance pulse wave) and a foot IPG (impedance pulse wave) based on the bioimpedance output from the impedance measurement unit 22. The leg IPG is an index indicating changes in the amount of blood in the blood vessels of the legs. The foot IPG is an index indicating changes in the amount of blood in the blood vessels of the feet. The cardiovascular measurement unit 56 creates an average waveform of the foot IPG (foot IPG waveform) based on the leg IPG. The cardiovascular measurement unit 56 calculates a pulse wave transit time (PTT) from the BCG waveform and characteristic points of the foot IPG waveform.

[0036] FIG. 6 is a diagram illustrating the relationship between the BCG waveform, the foot IPG waveform, and the PTT. As shown in FIG. 6, it is possible to calculate the PTT (pulse wave transit time) by taking the difference (time) between the reference point of the BCG waveform and the characteristic point of the foot IPG waveform. The cardiovascular measurement unit 56 calculates the PWV (pulse wave velocity) by dividing the measurement section distance by the PTT. Hard blood vessels Since the PWV value increases as the PWV increases, the PWV is used as an index representing the stiffness of blood vessels. The cardiovascular measurement unit 56 converts the PWV (pulse wave velocity) into an index (cardiovascular index) representing cardiac function and the state of blood vessels based on a predetermined algorithm, and calculates the cardiovascular index. To measure the cardiovascular condition of the subject, the subject must maintain a state of no or minimal body movement for approximately 20 to 30 seconds. Therefore, the cardiovascular measurement unit 56 starts measuring the cardiovascular condition of the subject when the subject is in a state of no or minimal body movement.

[0037] A first operation of the biological information measuring device 1 will be described with reference to Fig. 7. Fig. 7 is a flowchart for describing the first operation of the biological information measuring device 1. For example, when the first operation mode is set for the biological information measuring device 1, the control unit 20 reads out a program stored in the storage unit 27, thereby executing each process in the flowchart of Fig. 7.

[0038] In step S101, the person being measured presses the switch 110 of the biological information measuring device 1 to turn on the power of the biological information measuring device 1. Alternatively, in step S101, the person being measured may stand on the surface of the biological information measuring device 1 to turn on the power of the biological information measuring device 1.

[0039] In step S102, the sole condition measurement unit 51 measures the condition of the soles of the feet of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement values ​​output from at least one of the electrode unit 21 and the first sensor unit 23, and determines whether the person being measured is barefoot. If the person being measured is not barefoot (step S102; NO), the process proceeds to step S103. If the person being measured is barefoot (step S102; YES), the process proceeds to step S106.

[0040] The process of determining whether the subject is barefoot will be described. The process of determining whether the subject is barefoot may be performed by arranging multiple electrodes on both the front and rear sides of the surface of the biological information measuring device 1 and measuring the resistance between the electrodes. The electrode unit 21 may have multiple electrodes. The front side of the surface of the biological information measuring device 1 is the toe side of the subject's foot when the subject places the foot on the surface of the biological information measuring device 1. The rear side of the surface of the biological information measuring device 1 is the heel side of the subject's foot when the subject places the foot on the surface of the biological information measuring device 1. When the subject is wearing socks, there is no difference between the resistance between the two electrodes arranged on the front side of the surface of the biological information measuring device 1 and the resistance between the two electrodes arranged on the rear side of the surface of the biological information measuring device 1. The sole condition measuring unit 51 may determine whether the subject is barefoot by measuring the resistance value between two electrodes arranged on the front side of the surface of the biological information measuring device 1 and the resistance value between two electrodes arranged on the rear side of the surface of the biological information measuring device 1. One of the two electrodes arranged on the front side of the surface of the biological information measuring device 1 may be the current application electrode 12 or 13. One of the two electrodes arranged on the rear side of the surface of the biological information measuring device 1 may be the voltage measurement electrode 14 or 15.

[0041] FIG. 8 is a schematic diagram of a biological information measuring device 1 according to an embodiment. As shown in FIG. 8, an auxiliary electrode 60 may be arranged on the front side of the surface of the biological information measuring device 1. The sole condition measuring unit 51 may determine whether the person being measured is barefoot by measuring the resistance value between the current applying electrode 12 and the auxiliary electrode 60 and the resistance value between the voltage measuring electrode 14 and the auxiliary electrode 60. The auxiliary electrode 60 may be arranged at any position between the current applying electrode 12 and the voltage measuring electrode 14, not just at the position shown in FIG. 8. The auxiliary electrode 60 may also be arranged at any position between the current applying electrode 13 and the voltage measuring electrode 15. Since the auxiliary electrode 60 is unlikely to come into contact with the arch of the sole of the person being measured, it is not preferable to arrange the auxiliary electrode 60 at a location corresponding to the arch of the sole of the person being measured. Generally, the auxiliary electrode 60 is arranged at any position between the current applying electrode 12 and the voltage measuring electrode 14. The heel side of the subject's foot is rougher than the toe side of the subject's foot, and the difference between the resistance value on the toe side of the subject's foot and the resistance value on the heel side of the subject's foot is large. On the other hand, if the subject is wearing footwear such as socks, the difference between the resistance value on the toe side of the subject's foot and the resistance value on the heel side of the subject's foot is small. If the difference (difference value) between the resistance value on the toe side of the subject's foot and the resistance value on the heel side of the subject's foot is equal to or greater than the threshold, the sole condition measurement unit 51 determines that the subject is barefoot. If the difference (difference value) between the resistance value on the toe side of the subject's foot and the resistance value on the heel side of the subject's foot is less than the threshold, the sole condition measurement unit 51 determines that the subject is not barefoot.

[0042] A photoelectric sensor may be disposed on the surface of the biological information measuring device 1, and the amount of light received by the photoelectric sensor may be measured to determine whether the subject is barefoot. FIG. 9 is a diagram illustrating the arrangement of photoelectric sensors. In the example illustrated in FIG. 9, the photoelectric sensor 70 is disposed between the current-applying electrode 12 and the voltage-measuring electrode 14. The first sensor unit 23 may include the photoelectric sensor 70. The photoelectric sensor 70 is preferably disposed near the current-applying electrode 12 so that the photoelectric sensor 70 reliably contacts the soles of the subject's feet when the subject stands on the surface of the biological information measuring device 1. For example, the photoelectric sensor 70 may be disposed near the current-applying electrode 12 so that the photoelectric sensor 70 contacts the sole of the subject's big toe. The photoelectric sensor 70 may be disposed in the region between the dotted line A1 and the current-applying electrode 12 in FIG. 9.

[0043] The photoelectric sensor 70 may be disposed near the voltage measurement electrode 14. The photoelectric sensor 70 may be disposed in the region between the dotted line A2 and the voltage measurement electrode 14 in FIG. 9 . The photoelectric sensor 70 may be disposed between the current application electrode 13 and the voltage measurement electrode 15. The photoelectric sensor 70 may be disposed near the current application electrode 13. The photoelectric sensor 70 may be disposed in the region between the dotted line A3 and the current application electrode 13 in FIG. 9 . The photoelectric sensor 70 may be disposed near the voltage measurement electrode 15. The photoelectric sensor 70 may be disposed in the region between the dotted line A4 and the voltage measurement electrode 15 in FIG. 9 . Multiple photoelectric sensors 70 may be disposed on the surface of the vital information measuring device 1. The fabric is thinner in areas that are subject to friction, such as the heel of a sock. To avoid erroneous determination, the photoelectric sensor 70 may not be disposed on the rear side of the surface of the vital information measuring device 1.

[0044] 10 to 12 are explanatory diagrams illustrating a case where a photoelectric sensor measures the amount of light received to determine whether a subject is barefoot. FIGS. 10 and 11 show the biological information measurement device 1 as viewed from the side. The photoelectric sensor 70 includes an LED (Light Emitting Diode) 71, which is a light-emitting unit that emits light, and a photodiode 72, which is a light-receiving unit that receives light. The light emitted by the LED 71 preferably has a wavelength band (e.g., 500 nm or more and 1000 nm or less) that is not easily absorbed by biological tissue. FIG. 10 shows the biological information measurement device 1 when a subject wearing socks stands on the surface of the biological information measurement device 1. FIG. 11 shows the biological information measurement device 1 when a subject without socks stands on the surface of the biological information measurement device 1. FIG. 12 shows the voltage value obtained by converting the amount of light received by the photodiode 72. The vertical axis in FIG. 12 represents the voltage value, and the horizontal axis in FIG. 12 represents the time.

[0045] Voltage value V1 shown in FIG. 12 is the voltage value when a subject wearing socks stands on the surface of biological information measuring device 1. Voltage value V2 shown in FIG. 12 is the voltage value when a subject not wearing socks stands on the surface of biological information measuring device 1. The pressure on the soles of the subject's feet due to their weight crushes the blood vessels on the surface of the body. When the subject is not wearing socks, the light emitted from LED 71 reaches photodiode 72 with almost no attenuation. When the subject is wearing socks, the light emitted from LED 71 is attenuated by the socks before reaching photodiode 72. Therefore, voltage value V1 is lower than voltage value V2.

[0046] If the voltage value is equal to or greater than the threshold value TH1, the sole condition measurement unit 51 determines that the person being measured is barefoot. Alternatively, if the amount of light received by the photodiode 72 is equal to or greater than a threshold, the sole condition measuring unit 51 may determine that the person being measured is barefoot. The sole condition measuring unit 51 outputs a measurement result including a result indicating that the person being measured is barefoot.

[0047] If the voltage value is less than the threshold TH1, the sole condition measurement unit 51 determines that the person being measured is not barefoot. Alternatively, if the amount of light received by the photodiode 72 is less than the threshold, the sole condition measurement unit 51 may determine that the person being measured is not barefoot. The sole condition measurement unit 51 outputs a measurement result including a result indicating that the person being measured is not barefoot.

[0048] A plurality of photoelectric sensors 70 may be arranged on the surface of the biological information measuring device 1. For example, a photoelectric sensor 70 for measuring the condition of the sole of the subject's left foot and a photoelectric sensor 70 for measuring the condition of the sole of the subject's right foot may be arranged on the surface of the biological information measuring device 1.

[0049] In step S103, the body movement measurement unit 52 measures the body movement of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement values ​​output from at least one of the first sensor unit 23, the second sensor unit 24, and the electrode unit 21, and determines whether the body movement of the person being measured is large. That is, the body movement measurement unit 52 measures the body movement of the person being measured who is standing on the surface of the biological information measurement device 1, and determines whether the person being measured continues to be stationary. A stationary state is a state in which the measurement values ​​output from the first sensor unit 23, the second sensor unit 24, or the electrode unit 21 do not fluctuate by more than a predetermined value.

[0050] The process of determining whether the subject's body movement is large will be described. When the subject's feet move while standing on the surface of the biological information measuring device 1, the measurement value output from the first sensor unit 23 fluctuates. The measurement value output from the first sensor unit 23 is, for example, a voltage value or the amount of light received by the photodiode 72. If the measurement value output from the first sensor unit 23 fluctuates continuously for a predetermined time, the body movement measurement unit 52 determines that the subject's body movement is large. If the measurement value output from the first sensor unit 23 fluctuates continuously for a predetermined time, the body movement measurement unit 52 may determine that the subject is not remaining still. The body movement measurement unit 52 outputs a measurement result including at least one of a result indicating that the subject's body movement is large and a result indicating that the subject is not remaining still. If the measurement value output from the first sensor unit 23 does not fluctuate continuously for a predetermined time, the body movement measurement unit 52 determines that the subject's body movement is small. If the measurement value output from the first sensor unit 23 does not fluctuate for a predetermined period of time, the body movement measurement unit 52 may determine that the subject is continuing to be motionless. The body movement measurement unit 52 outputs a measurement result including at least one of a result indicating that the subject's body movement is small and a result indicating that the subject is continuing to be motionless.

[0051] When the subject performs a predetermined movement while standing on the surface of the biological information measuring device 1, the measurement value output from the second sensor unit 24 increases. For example, the predetermined movement may be, but is not limited to, the subject looking at the display unit 10. If the measurement value output from the second sensor unit 24 is continuously above a threshold for a predetermined time, the body movement measurement unit 52 determines that the subject's body movement is large. If the average value of the measurement values ​​output from the second sensor unit 24 within the predetermined time is above a threshold, the body movement measurement unit 52 determines that the subject's body movement is large. In these cases, the body movement measurement unit 52 may determine that the subject is not continuously stationary. The body movement measurement unit 52 outputs a measurement result including at least one of a result indicating that the subject's body movement is large and a result indicating that the subject is not continuously stationary. If the measurement value output from the second sensor unit 24 is continuously below the threshold for a predetermined time, the body movement measurement unit 52 determines that the subject's body movement is small. If the average value of the measurement values ​​output from the second sensor unit 24 within a predetermined time is less than the threshold value, the body movement measurement unit 52 determines that the body movement of the person being measured is small. In these cases, the body movement measurement unit 52 may determine that the person being measured is continuing to remain motionless. The body movement measurement unit 52 may determine that the body movement of the person being measured is small and that the person being measured is continuing to remain motionless. The measurement unit 23 outputs a measurement result including at least one of the following: a result indicating that the subject's body movement is continuing; and a result indicating that the subject's body movement is continuing. The threshold value used to measure the subject's body movement may be determined by experiment or simulation. For example, when the subject looks at the display unit 10, the threshold value may be determined based on the measurement value output from the second sensor unit 24.

[0052] When the subject's feet move while standing on the surface of the biological information measuring device 1, the measurement value output from the electrode unit 21 fluctuates. The measurement value output from the electrode unit 21 is, for example, a myoelectric potential. When the measurement value output from the electrode unit 21 fluctuates continuously for a predetermined time, the body movement measurement unit 52 determines that the subject's body movement is large. When the measurement value output from the electrode unit 21 fluctuates continuously for a predetermined time, the body movement measurement unit 52 may determine that the subject is not continuing to remain stationary. The body movement measurement unit 52 outputs a measurement result including at least one of a result indicating that the subject's body movement is large and a result indicating that the subject is not continuing to remain stationary. When the measurement value output from the electrode unit 21 does not fluctuate continuously for a predetermined time, the body movement measurement unit 52 determines that the subject's body movement is small. When the measurement value output from the electrode unit 21 does not fluctuate continuously for a predetermined time, the body movement measurement unit 52 may determine that the subject is continuing to remain stationary. The body movement measuring section 52 outputs a measurement result including at least one of a result indicating that the body movement of the person being measured is small and a result indicating that the person being measured is continuing to remain motionless.

[0053] If the subject's body movement is large (step S103; YES), the process proceeds to step S104. If the subject's body movement is small (step S103; NO), the process proceeds to step S105.

[0054] In step S104, the weight measurement unit 53 measures the weight of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S104, the display unit 10 displays information about the weight of the person being measured. In step S104, the information about the weight of the person being measured is stored in the memory unit 27. The information about the weight of the person being measured may be sent to the information processing device of the person being measured via the communication unit 26. The information about the weight of the person being measured is stored in the memory unit of the information processing device of the person being measured.

[0055] In step S105, the weight measurement unit 53 measures the weight of the person being measured standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S105, the standing balance measurement unit 55 measures the standing balance of the person being measured standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S105, the display unit 10 displays information about the person being measured's weight and standing balance. The information about the person being measured's standing balance is, for example, information indicating the position of the person's center of gravity when standing, but is not limited to this. In step S105, the information about the person being measured's weight and standing balance is stored in the memory unit 27. The information about the person being measured's weight and standing balance may be sent to the person being measured's information processing device via the communication unit 26. The information about the person being measured's weight and standing balance is stored in the memory unit of the person being measured's information processing device.

[0056] In step S106, the body movement measurement unit 52 measures the body movement of the subject standing on the surface of the bio-information measurement device 1 based on the measurement values ​​output from at least one of the first sensor unit 23, the second sensor unit 24, and the electrode unit 21, and determines whether the subject's body movement is large or not.

[0057] If the subject's body movement is large (step S106; YES), the process proceeds to step S107. If the subject's body movement is small (step S106; NO), the process proceeds to step S108.

[0058] In step S107, the weight measurement unit 53 measures the weight of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S107, the body composition measurement unit 54 measures the body composition of the person being measured who is standing on the surface of the biological information measurement device 1 based on the bioimpedance output from the impedance measurement unit 22 and the person's weight. In step S107, the display unit 10 displays information about the person's weight and body composition.

[0059] In step S107, information about the subject's weight and body composition is stored in memory unit 27. The information about the subject's weight and body composition may be sent to the subject's information processing device via communication unit 26. The information about the subject's weight and body composition is stored in the memory unit of the subject's information processing device.

[0060] In step S108, the weight measurement unit 53 measures the weight of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S108, the body composition measurement unit 54 measures the body composition of the person being measured who is standing on the surface of the biological information measurement device 1 based on the bioimpedance output from the impedance measurement unit 22 and the person's weight. In step S108, the standing balance measurement unit 55 measures the standing balance of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S108, the cardiovascular measurement unit 56 measures the cardiovascular condition of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24 and the bioimpedance output from the impedance measurement unit 22. In step S108, the display unit 10 displays information about the person's weight, body composition, standing balance, and cardiovascular condition. The information about the cardiovascular condition is, but is not limited to, a cardiovascular index.

[0061] In step S108, information about the subject's weight, body composition, standing balance, and cardiovascular condition is stored in the storage unit 27. The information about the subject's weight, body composition, standing balance, and cardiovascular condition may be sent to the subject's information processing device via the communication unit 26. The information about the subject's weight, body composition, standing balance, and cardiovascular condition is stored in the storage unit of the subject's information processing device.

[0062] A second operation of the biological information measuring device 1 will be described with reference to Fig. 13. Fig. 13 is a flowchart for describing the second operation of the biological information measuring device 1. For example, when the second operation mode is set for the biological information measuring device 1, the control unit 20 reads out a program stored in the storage unit 27, thereby executing each process in the flowchart of Fig. 13.

[0063] In step S201, the person being measured presses the switch 110 of the biological information measuring device 1 to turn on the power of the biological information measuring device 1. Alternatively, in step S201, the person being measured may stand on the surface of the biological information measuring device 1 to turn on the power of the biological information measuring device 1.

[0064] In step S202, the sole condition measurement unit 51 measures the condition of the soles of the feet of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement values ​​output from at least one of the electrode unit 21 and the first sensor unit 23, and determines whether the person being measured is barefoot. If the person being measured is not barefoot (step S202; NO), the process proceeds to step S203. If the person being measured is barefoot (step S202; YES), the process proceeds to step S204.

[0065] In step S203, the weight measurement unit 53 receives the measurement value output from the second sensor unit 24. Based on the value, the weight of the person being measured who is standing on the surface of the biological information measuring device 1 is measured. In step S203, the display unit 10 displays information about the weight of the person being measured. In step S203, the information about the weight of the person being measured is stored in the memory unit 27. The information about the weight of the person being measured may be sent to the information processing device of the person being measured via the communication unit 26. The information about the weight of the person being measured is stored in the memory unit of the information processing device of the person being measured.

[0066] In step S204, the weight measurement unit 53 measures the weight of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S204, the body composition measurement unit 54 measures the body composition of the person being measured who is standing on the surface of the biological information measurement device 1 based on the bioimpedance output from the impedance measurement unit 22 and the person's weight. In step S204, the display unit 10 displays information about the person being measured's weight and body composition. In step S204, the information about the person being measured's weight and body composition is stored in the memory unit 27. The information about the person being measured's weight and body composition may be sent to the person being measured's information processing device via the communication unit 26. The information about the person being measured's weight and body composition is stored in the memory unit of the person being measured's information processing device.

[0067] A third operation of the biological information measuring device 1 will be described with reference to Fig. 14. Fig. 14 is a flowchart for describing the third operation of the biological information measuring device 1. For example, when the third operation mode is set for the biological information measuring device 1, the control unit 20 reads out a program stored in the storage unit 27, thereby executing each process in the flowchart of Fig. 14.

[0068] In step S301, the person being measured presses the switch 110 of the biological information measuring device 1, thereby turning on the power of the biological information measuring device 1. Alternatively, in step S301, the person being measured may stand on the surface of the biological information measuring device 1, thereby turning on the power of the biological information measuring device 1.

[0069] In step S302, the body movement measurement unit 52 measures the body movement state of the subject standing on the surface of the bio-information measurement device 1 based on the measurement values ​​output from at least one of the first sensor unit 23, the second sensor unit 24, and the electrode unit 21, and determines whether the subject's body movement is large or not.

[0070] If the subject's body movement is large (step S302; YES), the process proceeds to step S303. If the subject's body movement is small (step S302; NO), the process proceeds to step S304.

[0071] In step S303, the weight measurement unit 53 measures the weight of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S303, the display unit 10 displays information about the weight of the person being measured. In step S303, the information about the weight of the person being measured is stored in the memory unit 27. The information about the weight of the person being measured may be sent to the information processing device of the person being measured via the communication unit 26. The information about the weight of the person being measured is stored in the memory unit of the information processing device of the person being measured.

[0072] In step S304, the weight measurement unit 53 measures the weight of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S304, the standing balance measurement unit 55 measures the standing balance of the person being measured who is standing on the surface of the biological information measurement device 1 based on the measurement value output from the second sensor unit 24. In step S304, the display unit 10 displays information about the weight and standing balance of the person being measured. In step S304, information about the weight and standing balance of the person being measured is stored in the storage unit 27. The information about the weight and standing balance of the person being measured may be sent to the person's information processing device via the communication unit 26. The information about the weight and standing balance of the person being measured is stored in the storage unit of the person's information processing device.

[0073] FIG. 15 is a time chart of the sole condition measurement process, body movement measurement process, weight measurement process, body composition measurement process, standing balance measurement process, and cardiovascular condition measurement process. The sole condition measurement time is the elapsed time from the time (T0) when the subject steps onto the surface of the biological information measurement device 1 to the time (T1) when the sole condition measurement process is completed. The body movement measurement time is the elapsed time from the time (T0) when the subject steps onto the surface of the biological information measurement device 1 to the time (T1) when the body movement measurement process is completed. The weight measurement time is the elapsed time from the time (T0) when the subject steps onto the surface of the biological information measurement device 1 to the time (T1) when the weight measurement process is completed. The body composition measurement time is the elapsed time from the time (T1) when the body composition measurement process is completed to the time (T2) when the body composition measurement process is completed. The standing balance measurement time is the elapsed time from the time (T1) when the standing balance measurement process is completed to the time (T3) when the standing balance measurement process is completed. The cardiovascular condition measurement time is the elapsed time from the time (T1) when the cardiovascular condition measurement process is completed to the time (T4) when the cardiovascular condition measurement process is completed.

[0074] The first measurement unit 41 has a sole condition measurement unit 51 and a body movement measurement unit 52. The first measurement unit 41 performs at least one of a first measurement process for measuring the condition of the soles of the feet of a person being measured who is standing on the surface of the biological information measurement device 1 and a second measurement process for measuring the body movement of the person being measured who is standing on the surface of the biological information measurement device 1. When the first operation mode is set for the biological information measurement device 1, the first measurement unit 41 performs both the first measurement process and the second measurement process and outputs the measurement results of the first measurement process and the second measurement process. When the second operation mode is set for the biological information measurement device 1, the first measurement unit 41 performs the first measurement process and outputs the measurement results of the first measurement process. When the third operation mode is set for the biological information measurement device 1, the first measurement unit 41 performs the second measurement process and outputs the measurement results of the second measurement process.

[0075] The second measurement unit 42 includes a weight measurement unit 53, a body composition measurement unit 54, a standing balance measurement unit 55, and a cardiovascular measurement unit 56. The second measurement unit 42 selects at least one measurement item from among multiple measurement items related to the subject's biological status based on at least one of the measurement results of the first measurement process and the second measurement process, and measures the subject's biological information. The multiple measurement items related to the subject's biological status include a measurement item for measuring weight, a measurement item for measuring body composition, a measurement item for measuring standing balance, and a measurement item for measuring cardiovascular status. According to the biological information measurement device 1, at least one measurement item from among multiple measurement items related to the subject's biological status is selected based on the condition of the subject's soles and the subject's body movements, and the biological information of the subject is measured. This improves usability in measuring biological information. With conventional body composition scales, for example, even when measuring only weight, the subject must stand on the body composition scale barefoot. Therefore, with conventional body composition scales, the subject must wait until measurements of measurement items other than weight are completed, reducing usability in measuring biological information.

[0076] A single sensor may serve both as the sensor for measuring the body movement of the subject standing on the surface of the biological information measuring device 1 and as the sensor for measuring the weight of the subject standing on the surface of the biological information measuring device 1. For example, a plurality of load cells of the second sensor unit 24 may be used to measure the body movement of the subject standing on the surface of the biological information measuring device 1 and also to measure the weight of the subject standing on the surface of the biological information measuring device 1. By using a single sensor for measuring the body movement of the subject standing on the surface of the biological information measuring device 1 and as the sensor for measuring the weight of the subject standing on the surface of the biological information measuring device 1, costs can be reduced.

[0077] The plurality of measurement items related to the subject's living body may include measurement items that are measured using a sensor that measures the body movement of the subject placed on the surface of the biological information measuring device 1. The sensor that measures the body movement of the subject placed on the surface of the biological information measuring device 1 is, for example, a plurality of load cells of the second sensor unit 24. The items that are measured using the plurality of load cells of the second sensor unit 24 are a measurement item that measures weight, a measurement item that measures standing balance, and a measurement item that measures cardiovascular condition.

[0078] A case where the first operating mode is set for the biological information measuring device 1 will be described. Here, a result indicating that the subject is not barefoot will be denoted as result (A), and a result indicating that the subject is barefoot will be denoted as result (B). A result indicating that the subject's body movements are large or that the subject is not continuously stationary will be denoted as result (C). A result indicating that the subject's body movements are small or that the subject is continuously stationary will be denoted as result (D).

[0079] For example, if the subject is wearing socks and not barefoot, the measurement accuracy of bioimpedance deteriorates, making it undesirable to measure the subject's body composition and cardiovascular status. It is undesirable to measure standing balance if the subject is not stationary. Measuring the subject's cardiovascular status requires the subject to remain stationary for 20 to 30 seconds. Therefore, if the measurement results of the first measurement process include result (A) and result (C), the second measurement unit 42 selects a measurement item for measuring body weight from among multiple measurement items related to the subject's body and measures the subject's bioinformation. Because only the subject's weight is measured and no other measurement items are measured, the time from start to completion of measurement of the subject's bioinformation is shortened. Specifically, the sensor output, algorithm processing, bioinformation display processing, and storage processing, etc., are omitted in measuring the subject's body composition, standing balance, and cardiovascular status, thereby shortening the time from start to completion of measurement of the subject's bioinformation. In a conventional body composition monitor, for example, when measuring the body composition or cardiovascular status of a subject wearing socks, an error may occur during the measurement, making it impossible to measure the subject's body composition or cardiovascular status. In this case, the conventional body composition monitor must display an error message or perform other processing, which increases the time it takes to complete measurement of the subject's biological information.

[0080] If the measurement result of the first measurement process includes result (A) and if the measurement result of the first measurement process includes result (D), the second measurement unit 42 selects at least one measurement item from among multiple measurement items related to the subject's body that can be measured when the subject is not stationary, and measures the subject's biological information. The measurement items that can be measured when the subject is not stationary are the measurement item that measures weight and the measurement item that measures body composition. Because the subject's weight and body composition are measured and other measurement items are not measured, the time from start to completion of measurement of the subject's biological information is shortened. Specifically, because sensor output, algorithm processing, biological information display processing, storage processing, etc. are omitted in measuring the subject's standing balance and cardiovascular condition, the time from start to completion of measurement of the subject's biological information is shortened.

[0081] If the measurement result of the first measurement process includes result (B) and if the measurement result of the first measurement process includes result (C), the second measurement unit 42 selects at least one measurement item that can be measured without using the measurement result of bioimpedance from among the multiple measurement items related to the subject's living body, and measures the subject's biological information. The measurement items that can be measured without using the measurement result of bioimpedance are the measurement item that measures body weight and the measurement item that measures standing balance. Since the subject's weight and standing balance are measured and other measurement items are not measured, the time from start to completion of measurement of the subject's biological information is shortened. Specifically, the sensor output, algorithm, and the like in measuring the subject's body composition and cardiovascular condition are used to measure the subject's biological information. Since processes such as rhythm processing, display processing and storage processing of biological information are omitted, the time from start to completion of measurement of the biological information of the subject is shortened.

[0082] If the measurement result of the first measurement process includes result (B) and if the measurement result of the first measurement process includes result (D), the second measurement unit 42 selects all of the measurement items from among the plurality of measurement items related to the subject's living body and measures the subject's biological information. If the subject stands barefoot on the surface of the biological information measurement device 1 and remains stationary, the subject is considered to have the intention to have their weight, body composition, standing balance, and cardiovascular condition measured, and the subject's biological information is measured.

[0083] When the measurement of the subject's biological information is being performed for all of the measurement items among the plurality of measurement items related to the subject's biological activity, the display unit 10 may not display any information while the measurement process is being performed by the second measurement unit 42. The subject's behavior of looking at the information displayed on the display unit 10 (looking at their feet) affects the measurement of their cardiovascular condition. By having the display unit 10 not display any information while the measurement process is being performed by the second measurement unit 42, the subject's body movement can be suppressed, improving the accuracy of measuring their cardiovascular condition.

[0084] If the soles of the subject's feet placed on the surface of the biological information measuring device 1 are cold, the accuracy of the measurement of the subject's soles using multiple electrodes may be reduced, potentially resulting in a false determination that the subject is not barefoot, even though the subject is actually barefoot. Therefore, if the temperature of the soles of the subject's feet placed on the surface of the biological information measuring device 1 is below a predetermined temperature, the first measuring unit 41 may perform a second measurement process and output the measurement results of the second measurement process. In this case, the second measuring unit 42 may select at least one measurement item that can be measured without using bioimpedance measurement results from among multiple measurement items related to the subject's body based on the measurement results of the second measurement process, and measure the subject's biological information. This prevents the first measuring unit 41 from performing the first measurement process if the temperature of the soles of the subject's feet placed on the surface of the biological information measuring device 1 is below the predetermined temperature, thereby avoiding false determination. The display unit 10 may display a message stating, "The soles of the feet are cold, so body composition and cardiovascular status cannot be measured."

[0085] If the subject gets off the biological information measuring device 1 before measurement of biological information for some selected measurement items among multiple measurement items related to the subject's biological body is completed, the measurement results of the biological information that have been measured at the time the subject gets off the biological information measuring device 1 may be displayed on the display unit 10. For example, if the subject gets off the biological information measuring device 1 between timing (T2) and timing (T3) in Fig. 15, the measurement results of the biological information measured from the start of measurement of the biological information to timing (T2) in Fig. 15 are displayed on the display unit 10. For example, if the subject gets off the biological information measuring device 1 between timing (T3) and timing (T4) in Fig. 15, the measurement results of the biological information measured from the start of measurement of the biological information to timing (T3) in Fig. 15 are displayed on the display unit 10.

[0086] <<Computer-readable recording medium>> A program that causes an information processing device or other machine or device (hereinafter referred to as a computer, etc.) to realize any of the above functions can be recorded on a computer-readable recording medium. Then, by having the computer, etc. read and execute the program from this recording medium, the function can be provided.

[0087] Here, a computer-readable recording medium is a medium that stores information such as data and programs electrically, magnetically, optically, mechanically, or chemically and that can be read by a computer or the like. This refers to a recording medium that can be read from a computer. Among such recording media, those that can be removed from a computer, etc. include flexible disks, magneto-optical disks, CD-ROMs, CD-R / Ws, DVDs, Blu-ray disks, flash memories, etc. Furthermore, recording media that are fixed to a computer, etc. include hard disks and ROMs. [Explanation of symbols]

[0088] 1: Biological information measuring device 10: Display section 11:Operation unit 12, 13: Electrode for applying current 14, 15: Voltage measurement electrodes 20: Control unit 21: Electrode part 22: Impedance measurement section 23: First sensor section 24: Second sensor section 25:Temperature measurement part 26: Communications Department 27: Storage part 31, 32, 33, 34: Load cells 35: Acceleration sensor 41: 1st measurement section 42:Second measurement part 51: Sole condition measurement unit 52: Body movement measurement section 53:Weight measurement section 54:Body composition measurement department 55: Standing balance measurement section 56: Cardiovascular measurement section 60: Auxiliary electrode

Claims

1. A biological information measuring device having a placement surface on which a subject can stand, a first measurement unit that performs at least one of a first measurement process that measures the state of the soles of the feet of the subject who is placed on the placement surface and a second measurement process that measures the body movement of the subject who is placed on the placement surface; a second measurement unit that selects at least one measurement item from a plurality of measurement items related to the living body of the subject based on at least one of the measurement results of the first measurement process and the measurement results of the second measurement process, and measures biological information of the subject; A biological information measuring device comprising:

2. the plurality of measurement items include a measurement item for measuring the weight of the person being measured who is placed on the placement surface, a sensor for measuring the body movement of the person being measured who is placed on the placement surface and a sensor for measuring the weight of the person being measured who is placed on the placement surface are both used as sensors; The biological information measuring device according to claim 1 .

3. the plurality of measurement items include a measurement item that is measured using a sensor that measures the body movement of the person being measured who is placed on the placement surface. The biological information measuring device according to claim 1 or 2.

4. the first measurement unit performs the first measurement process and the second measurement process; When the measurement result of the first measurement process includes a result indicating that the person being measured is not barefoot and includes a result indicating that the person being measured is not continuously stationary, the second measurement unit selects a measurement item for measuring body weight from the plurality of measurement items and measures the biological information of the person being measured. The biological information measuring device according to claim 1 .

5. the first measurement unit performs the first measurement process and the second measurement process; When the measurement result of the first measurement process includes a result indicating that the subject is barefoot and a result indicating that the subject is not continuing to be still, the second measurement unit selects at least one measurement item that can be measured when the subject is not still from among the plurality of measurement items, and measures the biological information of the subject. The biological information measuring device according to claim 1 .

6. the first measurement unit performs the first measurement process and the second measurement process; When the measurement result of the first measurement process includes a result indicating that the subject is not barefoot and includes a result indicating that the subject is continuing to be stationary, the second measurement unit selects at least one measurement item that can be measured without using the measurement result of bioelectrical impedance from among the plurality of measurement items, and measures the biometric information of the subject. The biological information measuring device according to claim 1 .

7. the first measurement unit performs the first measurement process and the second measurement process; When the measurement result of the first measurement process includes a result indicating that the subject is barefoot, and when the measurement result of the second measurement process includes a result indicating that the subject is continuing to be stationary, the second measurement unit selects all measurement items from the plurality of measurement items and measures the biological information of the subject. The biological information measuring device according to claim 1 .

8. A display unit for displaying information is provided, the display unit does not display the information while the measurement process is being performed by the second measurement unit. The biological information measuring device according to claim 7 .

9. a temperature measuring unit for measuring the temperature of the soles of the feet of the subject placed on the placement surface, When the temperature of the foot of the person being measured is equal to or lower than a predetermined temperature, the first measurement unit performs the second measurement process; the second measurement unit selects at least one measurement item that can be measured without using the measurement result of bioelectrical impedance from among the plurality of measurement items based on the measurement result of the second measurement process, and measures the bioelectrical information of the subject. The biological information measuring device according to claim 1 .

10. a computer of a biological information measuring device having a placement surface on which a subject can stand, a first measurement step of performing at least one of a first measurement process of measuring the state of the soles of the feet of the subject placed on the placement surface and a second measurement process of measuring the body movement of the subject placed on the placement surface; a second measurement step of selecting at least one measurement item from a plurality of measurement items related to the living body of the subject based on at least one of the measurement results of the first measurement process and the measurement results of the second measurement process, and measuring biological information of the subject; A biological information measurement method for performing the above.

11. A computer of a biological information measuring device having a placement surface on which a subject can stand, a first measurement step of performing at least one of a first measurement process of measuring the state of the soles of the feet of the subject placed on the placement surface and a second measurement process of measuring the body movement of the subject placed on the placement surface; a second measurement step of selecting at least one measurement item from a plurality of measurement items related to the living body of the subject based on at least one of the measurement results of the first measurement process and the measurement results of the second measurement process, and measuring biological information of the subject; A program to execute.

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