JP2022002802A - Respiration sensor, respiration detection device, biological information processing device, biological information processing method, computer program and mindfulness support device - Google Patents

Abstract

To provide a respiration sensor, a respiration detection device and a biological information processing device that can stably detect the respiration of a user, a biological information processing method, a computer program, and a mindfulness support device.SOLUTION: A respiration sensor according to an embodiment comprises a signal generator, and a probe. The signal generator generates a signal at a frequency of 500 kHz or higher and 20 MHz or lower. The signal generated from the signal generator passes through the probe. The probe is a capacitor. The respiration sensor detects a phase shift of the signal generated from the signal generator between before and after the signal passes through a circuit including the capacitor to thereby detect a change in the capacitance of the capacitor.SELECTED DRAWING: Figure 4

Description

Embodiments of the present invention relate to a breathing sensor, a breathing detection device, a biometric information processing device, a biometric information processing method, a computer program, and a mindfulness support device.

In recent years, attention has been paid to mindfulness that realizes self-awareness and self-development through the psychological process of paying attention to a person's internal or external experience. Against this background, there is an increasing need for devices that support mindfulness. Devices that support mindfulness are equipped with a breathing sensor that detects a person's breathing. This breathing sensor is required to stably detect the user's breathing.

Japanese Patent No. 3871280

Journal of Industrial Applied Engineering, Vol. 5, No. 2, pp. 43-51, Sept. 2017.

An object to be solved by the present invention is to provide a breathing sensor, a breathing detection device, a biometric information processing device, a biometric information processing method, a computer program and a mindfulness support device capable of stably detecting a user's breathing. ..

The breathing sensor of the embodiment has a signal generator and a probe. The signal generator generates a signal having a frequency of 500 kHz or more and 20 MHz or less. The probe passes the signal generated from the signal generator. The probe is a capacitor. The breath sensor detects a change in the capacitance of the capacitor by detecting a phase shift of the signal generated from the signal generator before and after passing through the circuit including the capacitor.

The figure explaining the outline of the structure of the bio-information processing apparatus 1. The figure explaining the outline of the structure of the bio-information processing apparatus 1. The figure explaining the outline of the structure of the bio-information processing apparatus 1. The block diagram which shows the specific example of the functional structure of the respiration sensor 20 and the respiration sensor control device 30 in the biometric information processing apparatus 1 of 1st Embodiment. The circuit diagram which shows an example of the offset removal circuit 31B. The circuit diagram which shows an example of the offset elimination circuit 31B including the signal amplification circuit 31C. The circuit diagram which shows the other example of the respiration sensor control device 30. The figure which shows a simplified example of an electronic circuit 50. The figure which shows an example of the result of calibration. A graph showing the relationship between coil line length and frequency. A circuit diagram and a graph showing the change in gain according to this circuit diagram. A circuit diagram and a graph showing the change in gain according to this circuit diagram. The figure explaining the position which performs the signal detection. The block diagram which shows the specific example of the functional structure of the biological information processing apparatus 1. The flowchart which shows the flow of the process which the bio-information processing apparatus 1 notifies a user of support information. A flowchart showing the calibration procedure. The graph which shows an example of the time change of the detection value detected by the breathing detector. The flowchart which shows the procedure of drawing the detection value X _{n of the respiratory information.} A graph showing an example of graphed respiratory information. A circuit diagram showing various modifications of an electronic circuit included in a signal processing unit. The figure which shows the 1st configuration example of the biological information processing apparatus 1 of 2nd Embodiment. The figure which shows the 2nd structural example of the biological information processing apparatus 1 of 2nd Embodiment. The figure which shows the 3rd structural example of the biological information processing apparatus 1 of 2nd Embodiment. The figure which shows the 4th structural example of the biological information processing apparatus 1 of 2nd Embodiment. The figure which shows the 5th structural example of the biological information processing apparatus 1 of 2nd Embodiment. In the fifth configuration example, the figure which shows how the sound waves output of a plurality of sound sources arranged in an open space interfere with each other and are attenuated. The figure which shows the 6th structural example of the biological information processing apparatus 1 of 2nd Embodiment. It is a figure which shows the mode that the biometric information processing apparatus 1 of the 6th configuration example generates a virtual sound image around a user. The figure which shows the 7th structural example of the biological information processing apparatus 1 of 2nd Embodiment. The figure which shows the 8th structural example of the biological information processing apparatus 1 of 2nd Embodiment. The figure which shows the 9th structural example of the biological information processing apparatus 1 of 2nd Embodiment. The figure which shows the tenth configuration example of the biometric information processing apparatus 1 of the 2nd Embodiment. The figure which shows the eleventh configuration example of the biometric information processing apparatus 1 of the 2nd Embodiment. The figure which shows the eleventh configuration example of the biometric information processing apparatus 1 of the 2nd Embodiment.

Hereinafter, the breath sensor, the breath detection device, the bio-information processing device, the bio-information processing method, the computer program, and the mindfulness support device of the embodiment will be described with reference to the drawings. The drawings are schematic or conceptual, and the relationship between the thickness and width of each part, the ratio coefficient of the size between the parts, and the like are not necessarily the same as the actual ones. Further, even when the same part is represented, the dimensions and ratio coefficients may be different from each other depending on the drawing.

(First Embodiment)
1 to 3 are diagrams illustrating an outline of the configuration of the biometric information processing apparatus 1 according to the first embodiment. The biometric information processing apparatus of the embodiment includes a housing portion that forms a housing of the own device, a power supply unit that supplies drive power to the own device, a biometric information acquisition unit that acquires the biometric information of the user, and a user's mindfulness. It is provided with a support information generation unit that generates various information for supporting the ness (hereinafter referred to as "support information") and an output unit that outputs the support information in various formats. The biometric information processing apparatus 1 shown in FIG. 1 includes a breathing sensor 20 and a pulse wave sensor 132 as an example of a biometric information acquisition unit, and a display unit 141, an LED (Light Emitting Diode) 142, and an oscillator 143 as an example of an output unit 14. And a speaker 144.

The housing portion 11 includes a power supply unit 12, a breathing sensor 20, a breathing sensor control device 30, pulse wave sensors 132-1 and 132-2, a display unit 141, a light emitting unit 142, an oscillator 143, a speaker 144, and the like. It has a built-in circuit unit 15 that controls the operation. Although omitted in FIG. 1 for simplicity, the housing portion 11 includes a connecting member for holding each built-in functional portion in a predetermined position. The respiration sensor 20 and the respiration sensor control device 30 constitute a respiration detection device.

The power supply unit 12 is an example of a power supply unit, and supplies drive power to each functional unit included in the biometric information processing device 1. For example, the power supply unit 12 is configured by using a storage battery or a battery device. Further, the power supply unit 12 may be configured by using a power plug for acquiring power from a power outlet.

The breathing sensor 20 is a sensor that senses the state of breathing of the user. The respiratory sensor 20 is a sensor capable of acquiring information indicating the respiratory state of the user (hereinafter referred to as "respiratory information"). For example, as one of the methods for grasping the respiratory state of a person, there is a method of observing the movement of a part of the body of the person (user), for example, the abdomen. In this case, a distance sensor capable of measuring the distance between the probe and the human body can be used as the breathing sensor 20.

As such a breathing sensor 20, for example, a sensor having the same function as the time difference detection sensor is used. The breathing sensor 20 includes a signal generator 21 and a coil portion 22 (see FIG. 4). The coil portion 22 is provided with a coil 51. The coil 51 is a probe and serves as a reference for measuring the displacement of the user's abdomen. The signal generator 21 generates a signal (AC signal) having a predetermined frequency and outputs the signal to the coil unit 22. The coil 51 of the coil unit 22 is arranged at a position close to a part of the user's body when the biometric information processing apparatus 1 is used. A part of the user's body is a part that is displaced according to the user's breathing. A part of the user's body is, for example, the user's abdomen. The oscillation frequency of the signal output from the signal generator 21 may be, for example, the frequency at which the value obtained by subtracting the detection value by the sweep in the suction cut state from the detection value by the sweep in the discharge cut state becomes the maximum.

The signal output from the signal generator 21 passes through the coil unit 22 and is input to the breathing sensor control device 30. When the user breathes, the abdomen is displaced. For example, when the user inhales, the abdomen protrudes and approaches the coil 51. When the user exhales, the abdomen retracts and separates from the coil 51. The inductance of the coil 51 changes depending on the proximity or separation of the user's abdomen. The signal that has passed through the coil unit 22 becomes a respiration detection signal and is output to the respiration sensor control device 30. The respiration sensor control device 30 measures the distance between the coil 51 and the human body by measuring the change in the propagation speed of the electric signal flowing through the coil unit 22 from the phase shift of the respiration detection signal, and detects the respiration of the user. can do.

The shape of the coil 51 is preferably a cylindrical shape, but any shape may be used. For example, the cross section may be an ellipse or an oval, or the cross section may be a polygonal shape such as a quadrangle, a triangle, or a hexagon. It may be a flat concentric circle like a spider web. The larger the cross-sectional area is, the more sensitive it is to measure even if the distance between the abdomen and the coil is large. Further, the coil 51 may be a single coil or may be divided. When the coil 51 is divided, the divided shapes may be the same or different. Further, when arranging the coil 51, it is desirable to arrange the coil 51 so that the axis of the coil 51 is close to a right angle to the abdominal surface of the user. In other words, it is desirable to arrange the coil 51 so that the cross section of the coil 51 is close to parallel to the surface of the user's abdomen.

The pulse wave sensors 132-1 and 132-2 are sensors that sense the pulse wave of the user. The pulse wave sensors 132-1 and 132-2 may be configured by using any sensor as long as it can acquire information indicating the state of the user's pulse wave (hereinafter referred to as "pulse wave information"). .. In FIG. 1, the bioinformation processing apparatus 1 is provided with two pulse wave sensors on the assumption that the pulse waves of both hands of the user holding the biometric information processing apparatus 1 are measured as shown in FIG. However, the biometric information processing apparatus 1 does not necessarily have to measure the pulse waves of both hands. Moreover, the measurement point of the pulse wave does not necessarily have to be a hand. Therefore, the number of pulse wave sensors and the installation position may be arbitrarily determined according to the number of measurement sites and measurement sites.

It is preferable that the biosensors such as the breathing sensor 20 and the pulse wave sensor 132 are arranged near the surface of the housing or at a position where they can come into contact with the abdomen, hands and the like. By arranging the breathing sensor 20 and the pulse wave sensor 132 at these positions, biological information such as the user's breathing information and pulse wave information can be easily detected.

The display unit 141 is configured by using a display device such as a liquid crystal display or an organic EL (Electro-Luminescence) display. The display unit 141 is an example of a means for the user to perceive the support information through the visual sense. The display unit 141 notifies the user of the content of the support information by displaying characters, numbers, symbols, figures, colors, images, and the like. The display unit 141 may be attached to the outside of the housing unit 11, or a display unit such as a PC (Personal Computer), a smartphone, or a tablet may be used.

Similar to the display unit 141, the light emitting unit 142 is an example of means for causing the user to perceive support information through vision. The light emitting unit 142 notifies the content of the support information by its lighting color and blinking pattern. The light emitting unit 142 includes, for example, an LED substrate, a plurality of, for example, 16 LEDs, a diffusing lens, and a diffusing opalescent plate. The plurality of LEDs are all mounted on the LED substrate. The LED substrate on which the LED is mounted is covered with a diffusion lens and a diffusion milk white plate. Although the LED is a point light source, the light emitting unit 142 emits light as a surface light source instead of a point light source by lighting a plurality of LEDs all at once and diffusing the light by a diffuser lens and a diffusing milk white plate. By providing the light emitting unit 142 with a diffusing lens and a diffusing opalescent plate, the light of the LED can be diffused to appear to be vaguely spread. The light emitting unit 142 may have a diffusion plate, a diffusion film, or the like covering the LED substrate together with or in place of the diffusion lens and the diffusion milk white plate. Further, the light emitting unit 142 may be an LED that is not mounted on the substrate. Instead of the LED, an organic EL element, a laser diode, a flash lamp, or the like may be used.

The oscillator 143 is an example of a means for causing the user to perceive support information through tactile sensation, and is configured by using a driving component such as a motor or a voice coil that vibrates by energization. The oscillator 143 notifies the content of the support information by its vibration pattern.

The speaker 144 is an example of a means for the user to perceive support information through hearing. The speaker 144 notifies the content of the support information by outputting voice.

The circuit unit 15 includes a processor, a memory, an auxiliary storage device, and the like connected by a bus, and executes a program. By executing this program, the circuit unit 15 functions as a support information generation unit that generates support information based on biological information such as respiratory information and pulse wave information. The circuit unit 15 converts the generated support information into an output unit format according to the notification means and outputs the information.

For example, when the support information is notified by the screen display, the circuit unit 15 generates screen data indicating the support information and outputs it to the display unit 141. Further, for example, when the support information is notified by lighting or blinking of the light emitting unit 142, the circuit unit 15 generates control information indicating a lighting color and blinking pattern corresponding to the content of the support information and outputs the control information to the light emitting unit 142. .. Further, for example, when the support information is notified by the vibration of the biometric information processing apparatus 1, the circuit unit 15 generates control information indicating a vibration pattern corresponding to the content of the support information and outputs the control information to the vibrator 143. Further, for example, when the support information is notified by voice, the circuit unit 15 converts the generated support information into voice data and outputs the support information to the speaker 144. It is assumed that the information indicating the correspondence between the type of support information and the notification means is stored in advance in the auxiliary storage device or the like of the circuit unit 15.

All or part of each function of the circuit unit 15 may be realized by using hardware such as an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or an FPGA (Field Programmable Gate Array). The program may be recorded on a computer-readable recording medium. The computer-readable recording medium is, for example, a flexible disk, a magneto-optical disk, a portable medium such as a ROM or a CD-ROM, or a storage device such as a hard disk built in a computer system. The program may be transmitted over a telecommunication line.

FIG. 3 is a diagram showing an outline of the positional relationship of each functional unit in the biometric information processing apparatus 1 of the first embodiment. FIG. 3A is an image diagram of the biometric information processing apparatus 1 held as shown in FIG. 2 when viewed from above (from the positive z-axis direction to the negative z-axis direction). FIG. 3B is an image diagram of the biometric information processing apparatus 1 held as shown in FIG. 2 when viewed from the user's facing direction (from the negative y-axis direction to the positive y-axis direction).

In this case, the breathing sensor 20 is close to the user's abdomen and measures the distance between the user's abdomen and the user's abdomen. The respiration sensor 20 acquires time-series data of measured values as respiration information. Further, in this case, the pulse wave sensor 132-1 touches the vicinity of the palm of the user's right hand and performs a sensing operation in that state to measure the pulse wave of the finger or wrist of the user's right hand. Similarly, the pulse wave sensor 132-2 touches the vicinity of the palm of the user's left hand and performs a sensing operation in that state to measure the pulse wave of the finger or wrist of the user's left hand. The pulse wave sensor 132 acquires time-series data of measured values as pulse wave information. The pulse wave sensor 132 does not necessarily have to measure the pulse wave of the finger or the wrist. The pulse wave sensor 132 may touch any part of the user's body and may measure the pulse wave of any part.

Further, in this case, the user confirms the support information displayed on the display unit 141 by looking down at the biometric information processing apparatus 1 held as shown in FIG. 2 (from the z-axis positive direction to the z-axis negative direction). be able to. Further, in this case, as shown in FIG. 2, the vibrator 143 vibrates while the biometric information processing apparatus 1 is held, so that the user can perceive the support information according to the presence or absence of the vibration and the vibration pattern.

FIG. 4 is a block diagram showing a specific example of the functional configuration of the respiration sensor 20 and the respiration sensor control device 30 in the biometric information processing apparatus 1 of the first embodiment. The respiration sensor 20 includes the signal generator 21 and the coil portion 22 shown in FIG. The coil portion 22 may include a resistor, an inductor, and a capacitor in addition to the coil 51, and constitutes a circuit as a whole that can generate a time lag and a phase difference of the electric signal passing through the coil portion 22. The respiration sensor control device 30 includes a signal processing unit 31 and a respiration sensor control unit 32. The signal processing unit 31 includes a signal conversion circuit 31A, an offset removal circuit 31B, and a signal amplification circuit 31C. The offset elimination circuit 31B and the signal amplification circuit 31C may be in the reverse order, or may not be provided with either or both.

The signal conversion circuit 31A converts the waveform of the signal output from the coil unit 22. Specifically, when the waveform input from the signal generator 21 to the coil unit 22 is a rectangular wave, the signal output from the coil unit 22 is broken by the rectangular wave or the rectangular wave passing through the coil unit 22. It becomes a waveform. The signal conversion circuit 31A is a circuit for converting the time difference and the phase difference between the signal output through the coil unit 22 and the signal not passing through the coil unit 22 into a voltage. For example, preferably a line driver or inverter with a Schmitt trigger function, a logic circuit such as ex-OR or NAND for detecting time difference or phase difference, and for converting the output from this circuit to a constant voltage value. It is equipped with a low-pass filter circuit and converts this square wave into a smooth voltage waveform.

The cutoff frequency of the signal conversion circuit 31A is set to a frequency smaller than the frequency determined by the calibration. It is desirable that the cutoff frequency of the signal conversion circuit 31A is, for example, a frequency one digit or more smaller than the frequency of the signal output from the coil unit 22. More preferably, by configuring a filter that passes only through the frequency range of the user's breathing, non-breathing noise components, such as body movements other than breathing, can be removed. For example, in general, the respiratory rate of an adult is 12 to 18 times per minute. Adult respiration is approximately 0.2 Hz in frequency.

For example, when the coil 51 of the coil portion 22 is fixed in the vicinity of the abdomen of the subject, the inductance of the coil 51 differs between the suction cut state and the discharge cut state of the user. This is mainly because the distance between the coil 51 and the user's abdomen changes with breathing, so that the magnetic permeability around the coil 51 changes with breathing. As described above, the coil portion 22 constitutes a circuit as a whole that can generate a time lag and a phase difference of the electric signal passing through the coil portion 22, and the presence or absence of the time lag and the phase difference passes through the coil portion 22. It depends on the frequency of the signal to be used and the circuit constants constituting the coil unit 22. For example, when the coil unit 22 constitutes a low-pass filter-like circuit as a whole, if a signal having a frequency sufficiently lower than the cutoff frequency determined by this circuit passes through the coil unit 22, the time lag and the phase difference will occur. On the contrary, if a signal having a sufficiently high frequency passes, a time lag or a phase difference will occur. Further, the cutoff frequency of the coil portion 22 changes due to the change in magnetic permeability. That is, when the cutoff frequency that changes between the suction cutoff state and the discharge cutoff state of the user is designed to straddle the frequency of the signal output from the signal generator 21, when the frequency of the signal is lower than the cutoff frequency, The phase of the signal output through the coil portion 22 does not change from the phase of the original signal, but when it is higher than the cutoff frequency, a deviation occurs with respect to the phase of the original signal. As a matter of course, the amount of deviation is intermediate in the vicinity of the cutoff frequency, but the ratio of the phase change with respect to the frequency of the signal and the maximum value of the amount of deviation differ depending on the characteristics of the circuit. Therefore, if this change in phase is detected, the user's respiration can be detected.

The offset removal circuit 31B is a circuit that removes an offset component included in the signal output from the signal processing unit 31A. The offset removal circuit 31B removes the offset of the user's breathing frequency, a frequency component lower than 0.2 Hz in the above example. Elimination of offsets of frequency components slower than 0.2 Hz is difficult to achieve with a high-pass filter. Hereinafter, some specific circuit configurations of the offset removal circuit 31B will be described.

FIG. 5A is a circuit diagram showing an example of the offset removal circuit 31B. The offset removal circuit 31B is composed of, for example, a differential amplifier circuit including the instrumentation amplifier 310 shown in FIG. The signal from the signal conversion circuit 31A is input to the input node 311 connected to the + input of the instrumentation amplifier 310. An offset adjustment signal 312 is input to the − input of the instrumentation amplifier 310. An offset removal signal is output from the output node 313 connected to the output of the instrumentation amplifier 310.

FIG. 5B is a circuit diagram showing another example of the offset removal circuit 31B. The offset removal circuit 31B is composed of, for example, a subtraction circuit including an operational amplifier 410 and a first resistor 411 to a fourth resistor 414 shown in FIG. 5 (B). One end of the first resistor 411 is connected to the + input of the operational amplifier 410, and the signal from the signal conversion circuit 31A is input to the input node 415 at the other end of the first resistor 411. Further, one end of the third resistor 413 is connected between the first resistor 411 and the + input of the operational amplifier 410. One end of the second resistor 412 is connected to the-input of the operational amplifier 410, and the offset adjustment signal 416 is input from the other end of the second resistor 412. Further, a fourth resistor 414 is connected between the second resistor 412 and the output side of the operational amplifier 410. An offset removal signal is output from the output node 417 connected to the output of the operational amplifier 410.

In the subtraction circuit shown in FIG. 5B, when the resistance values R1 to R4 of the first resistance 411 to the fourth resistance 414 are R1 = R2 and R3 = R4, the output signal V _OUT of the operational amplifier 410 is as follows (1). ).
V _OUT = R3 {(Signal from signal processing unit 31A)-(Offset adjustment signal)} / R1 [V]
(1)

The offset adjustment signal used for the operation amplifier circuit and the subtraction circuit may be calculated from the calibration result and the past measurement data taken into the breathing sensor control unit 32. When calculating from the calibration result, the minimum value obtained during the calibration may be used as the offset adjustment signal. When calculating from the measurement data, it is desirable to set it as the minimum value of the measurement data in a certain section from the present to the past. It is desirable that a certain section from the present to the past is longer than the time required for one breath of the user. The offset adjustment signal is applied to the offset removal circuit 32B from the DAC (digital to analog converter) of the control unit 23, for example. For example, the value detected from the signal conversion circuit 31A in the discharge cutoff state is used as the initial value of the offset in the offset adjustment signal.

FIG. 6A is a circuit diagram showing an example of the offset removal circuit 31B including the signal amplification circuit 31C. When the offset elimination circuit 31B is, for example, the operational amplifier circuit shown in FIG. 5A, the signal amplifier circuit 31C is a circuit in which the gain adjustment resistor 510 included in the instrumentation amplifier 310 is used as a variable resistor. The variable resistor as the gain adjusting resistor 510 may be, for example, a digital potentiometer. By using the digital potentiometer, the resistance can be constantly changed and the amplification factor can be changed by the communication from the respiration sensor control unit 32. A normalized offset signal is generated by amplifying the signal by the signal amplification circuit 31C. As the respiration sensor control unit 32, a microcomputer, FPGA (field-programmable gate array), or the like may be used. Further, I2C (Inter-Integrated Circuit) or SPI (Serial Peripheral Interface) may be used for communication. The signal amplification circuit 32C amplifies the small signal after offset removal. Therefore, the resolution of the ADC (analog to digital converter) can be fully utilized and the SN ratio can be improved.

The signal amplification circuit 31C uses a value (voltage difference) obtained by subtracting the detection value of the signal conversion circuit 31A in the suction cut state from the detection value of the signal conversion circuit 31A in the discharge cut state as a standard for normalization. Specifically, the amplification command value for the signal amplification circuit 31C is calculated based on, for example, the user's respiratory data. The amplification factor gain in the amplification command value may be determined by using the maximum value max and the minimum value min in a certain section, for example, by the following equation (2).
gain = ADC input voltage range [V] / (max-min) [V] (2)
The signal amplification circuit 32C may be an inverting amplifier or a non-inverting amplifier. The signal amplification circuit 31C may have multiple stages. By increasing the number of stages of the signal amplification circuit 31C, the amplification factor can be changed more greatly. The normalization standard may be updated sequentially after the measurement by the respiratory sensor 20 is started.

FIG. 6B is a circuit diagram showing another example of the offset removing circuit 31B including the signal amplification circuit 31C. When the offset elimination circuit 31B is, for example, the differential amplifier circuit shown in FIG. 5A, the signal amplification circuit 31C may be a combination of a resistor and a diode. In the offset elimination circuit 31B including the signal amplification circuit 31C shown in FIG. 6B, a variable resistor 610, a first resistor 611 to a fourth resistor 614, a first diode 615, and a second diode 616 are provided to provide an amplifier circuit. It is composed. For the variable resistance 610, for example, the resistance value is changed by communication from the respiration sensor control unit 32, and the amplification factor is changed.

FIG. 6C is a circuit diagram showing another example of the offset removing circuit 31B including the signal amplification circuit 31C. When the offset elimination circuit 31B is, for example, the differential amplifier circuit shown in FIG. 5A, the signal amplification circuit 31C may be provided with a FET (Field effect transistor) 710. The FET 710 is connected to the-input of the instrumentation amplifier 310. Further, a first resistor 711 is connected between the instrumentation amplifier 310 and the FET 710. A second resistor 712 is connected between the instrumentation amplifier 310 and the output node 313 and between the first resistor and the instrumentation amplifier 310.

As described above, the signal processing unit 31 may be configured to include a signal conversion circuit 31A, an offset removal circuit 31B, and a signal amplification circuit 31C, or an ADC (A / D conversion unit) for differential input is used. You may. FIG. 7 is a circuit diagram showing another example of the respiratory sensor control device 30. As shown in FIG. 7, the respiratory sensor control device 30 includes input nodes 811 and 812 connected to the ADC 810 and the ADC 810. The signal from the coil unit 22 and the signal from the signal generator 21 are input to the input nodes 811 and 812. This signal may be converted by the ADC 810 and processed by the respiratory sensor control unit 32. When the differential input ADC 810 is used, the offset removal may be processed by software in the respiratory sensor control unit 32.

The frequency of the signal output from the signal generator 21 is a known frequency and may be any frequency, but for example, any frequency of 500 kHz or more and 20 MHz or less is preferable. The coil length of the coil portion 22 may be any length, but it is preferably 10 cm or more and 20 m or less, for example. Desirably, it is more preferably 8 m or more and 12 m or less from the viewpoint of the obtained sensitivity. Hereinafter, these suitable ranges will be described together with the frequency of the signal output from the signal generator 21.

The respiration sensor 20 determines the frequency of the electric signal applied to the probe unit by performing the calibration realized by the series of processes (1) to (4) below, for example. This calibration may be performed only once at the time of the first measurement, or may be performed at each measurement. The process of (1) can be omitted.
(1) A frequency sweep test of a probe unit in which a certain frequency range (for example, between 0 and 20 MHz) is divided into a certain frequency range (for example, 100 divisions) and the divided frequency range is used as a sweep unit for the entire frequency range. To carry out. Here, in order to shorten the time required for the test, it is desirable that the measurement at one point is as short as possible (for example, 10 milliseconds). Further, in order to suppress the deterioration of the measurement accuracy, it is desirable to keep the hand or body away from the probe portion (coil or the like) at the time of measurement. If a sensing result that satisfies the detection intensity standard cannot be obtained within this frequency range, the entire frequency range is expanded and the frequency sweep test is performed again.
(2) Before and after the frequency (peak frequency) at which the sensing result having the highest detection intensity among the sensing results obtained in (1) is obtained, the entire frequency range is narrowed and the frequency sweep test is performed again. In the frequency range here, for example, the lower limit is an intermediate value of the peak frequency, and the upper limit is 1.5 times the peak frequency. Again, in order to suppress the deterioration of measurement accuracy, it is desirable to keep the hand or body away from the probe portion (coil, etc.) during measurement.
(3) Perform the same frequency sweep test as in (2) with the hand or body close to the probe section. (4) The difference between the detected values in (2) and (3) is calculated, and the frequency at which the difference is the largest is obtained. This frequency becomes the result of calibration and becomes the frequency of the electric signal applied to the respiration sensor 20 when the respiration information is acquired.

FIG. 8 is a simplified diagram showing an example of the electronic circuit 50. The electronic circuit 50 constitutes a part of the coil portion 22. For example, as shown in FIG. 8, the electronic circuit 50 can be composed of a coil 51, a first resistor 52, a capacitor 53, and a second resistor 54. In this electronic circuit 50, either one or both of the coil 51 and the capacitor 53 can be used as a probe, but here, the coil 51 is used as a probe. Further, at least one of the coil 51, the first resistance 52, and the second resistance 54 may be the internal resistance of the circuit in the subsequent stage.

In the electronic circuit 50 shown in FIG. 8, the inductance L of the coil 51 is 0.5 mH, the resistance value of the first resistor 52 is 0, the capacitance of the capacitor 53 is C = 20 pF, and the resistance value of the second resistor 54 is R = 1 Mohm. FIG. 9 shows an example of the calibration result when a pulse wave is input to the electronic circuit 50. 9A is a gain diagram of the electronic circuit 50, and FIG. 9B is a phase diagram of the electronic circuit 50.

As shown in FIG. 9A, when the frequency is 1 MHz or less, no gain is seen, but the gain is seen from around the frequency of 500 kHz, and the gain peaks at a value slightly exceeding 1 MHz. At higher frequencies, the gain gradually decreases. That is, if the frequency exceeds 1 MHz and becomes too high, no signal can be obtained. Further, as shown in FIG. 9B, when the frequency is 500 kHz or less, there is almost no phase shift between the input waveform and the output waveform, and the input waveform and the output of the electronic circuit 50 start from the frequency exceeding 500 kHz. A slight phase shift is seen in the waveform, which increases sharply after the frequency exceeds 1 MHz. Therefore, the frequency of the signal output from the signal generator 21 is preferably determined in the range of 500 kHz or more and 20 MHz or less, and the more preferable range is 800 kHz or more and 5 MHz or less.

Next, the characteristics of the coil (inductor) will be described. The inductance L of the coil (solenoid coil) can be expressed by the following equation (3). Further, the frequency f can be expressed by the following equation (4).
L = kμ (line length) ² / 4nl (3)
f = 1/2π (LC) ^1/2 (4)
Here, L is an inductance, n is the number of turns, k is the Nagaoka coefficient (= coil area / length), S is the cross-sectional area of the coil, μ is the magnetic permeability, and l is the coil length.

Next, the relationship between the coil wire length and the suitable frequency will be described. FIG. 10 (A) is a graph showing the relationship between length and frequency obtained from an experiment using a coil having a wire diameter of 0.35 mm, and FIG. 10 (B) shows a coil having a wire diameter of 0.63 mm. It is a graph which shows the relationship between a length and a frequency. In FIGS. 10A and 10B, the left side of the vertical axis shows the frequency, and the right side shows the magnitude of the output obtained from the signal processing unit 31.

As shown in FIG. 10A, when the length of the coil wire is about 3 m or less, the frequency exceeds 5 MHz, and when it is about 6 m or less, the output decreases. Further, when the length of the coil wire was about 15 m or more, both the frequency and the output were not stable. In particular, in the range where the coil wire length is 8 m or more and 12 m or less, both the frequency and the peak are stable. Therefore, the length of the wire preferably used as the coil is preferably in the range of 6 m or more and 15 m or less, and more preferably 8 m or more and 12 m or less. Further, as shown in FIG. 10B, even when the diameter of the coil wire is 0.63 mm, the length of the wire preferably used as a coil is in the range of 6 m or more and 15 m or less, more preferably 8 m or more and 12 m or less. It is better to say.

From the above, it is preferable that the frequency of the signal output from the signal generator 21 is in the range of 500 kHz or more and 20 MHz or less, and the length of the coil wire is 8 to 12 m. It can also be seen that the longer the wire length in the coil, the smaller the frequency, and the shorter the coil length, the smaller the frequency. It can also be seen that the thickness of the coil wire is independent of frequency. The frequency may be determined in consideration of such coil characteristics. The coil is preferably an air-core coil, but an iron-core coil or the like may be used. Further, as described above, it is preferable to set the frequency so that the frequency spans between the inhalation state and the exhalation state of the user's breathing. In addition, the inhalation state of the user's breath means the state in which the user has inhaled. In the sucked-out state, the user's abdomen is in the most overhanging state. The exhaled state of the user's breath means the state in which the user has exhaled. In the exhalation state, the user's abdomen is in the most retracted state. In other words, it is preferable to set the frequency of the signal output from the signal generator 21 to be lower than the frequency in the discharge cut state and higher than the frequency in the suction cut state.

Further, the stray capacitance and the impedance at the output end may be intentionally used. For example, as shown in FIG. 11A, the capacitor 60 may be connected in parallel to the coil L. By connecting the capacitor 60 in parallel with the coil L, it is possible to prevent the gain at high frequencies from dropping too much. FIG. 11B shows a change in gain when the capacitor 60 is connected in parallel to the coil L. As shown in FIG. 11B, the gain can be prevented from dropping too much in any of the cases where the capacitance of the capacitor 60 is Cp = 1pF and 100pF. In particular, when the capacitance of the capacitor 60 is Cp = 100pF, the gain can be prevented from dropping too much. The area of the capacitor is preferably 3 cm × 3 cm (9 cm ² ) or more. Further, the shape of the capacitor may be a square shape or a rectangular shape. Alternatively, it may be circular, oval, oval, or the like.

Further, as shown in FIG. 12A, by connecting a resistor 61 to the output side of the coil L and grounding the resistor 61, it is possible to prevent the frequency gain from changing significantly. FIG. 12B shows a change in gain when a resistor 61 is connected to the output side of the coil L and the resistor 61 is grounded. As shown in FIG. 12B, the gain peak can be reduced and the gain can be prevented from changing significantly regardless of whether the _{resistance value RL of the resistor 61 is RL = 5 ohms or 500 ohms.} In particular, when the resistance value _RL of the resistor 61 is 500 ohms, the peak can be almost eliminated. In this way, the frequency range in which the phase changes can be set in an appropriate range as the respiratory sensor.

The measurement of the temporal change (difference) between the signal output from the signal generator 21 and the signal output from the electronic circuit 50 or the coil unit 22 may be a direct method performed with a time difference or an indirect method performed with a phase difference. But it may be. In the case of the direct method, the time difference between the signal output from the signal generator 21 and the signal output from the electronic circuit 50 or the coil unit 22 may be directly measured by the time counter. However, since it is necessary to configure a very high-speed measurement circuit for the measurement in this case, it is common to use a less difficult indirect method. The indirect method has, for example, the configuration described in FIGS. 1 and 2 of Non-Patent Document 1. 13 (A) and 13 (B) are diagrams illustrating a location where a signal output from the signal generator 21 and a signal output from the electronic circuit 50 or the coil unit 22 are taken out. As shown in FIG. 13A, the time difference may be measured before and after the electronic circuit 50, or the time difference may be measured between the signal output from the electronic circuit 50 and the signal not passing through the electronic circuit 50. Is also good.

FIG. 14 is a block diagram showing a specific example of the functional configuration of the biometric information processing apparatus 1 of the first embodiment. In addition to the breathing sensor 20, pulse wave sensor 132, display unit 141, light emitting unit 142, oscillator 143 and speaker 144 shown in FIG. 1, the biometric information processing apparatus 1 includes a communication unit 161, an amplifier 162 and an address converter 163. To prepare for. Further, the circuit unit 15 functions as the support information generation unit by including the analysis unit 151 and the control unit 152.

The communication unit 161 is a communication interface that enables communication with other communication devices. The communication unit 161 may be a wireless communication interface or a wired communication interface. In the usage form of mindfulness, the installation position of the biometric information processing apparatus 1 is often not fixed at a predetermined position. In that sense, it is desirable that the communication unit 161 is a wireless communication interface.

The amplifier 162 is an amplifier that amplifies an electric signal output to the oscillator 143 and the speaker 144. The amplifier 162 amplifies the electric signal output from the control unit 152 as necessary, and outputs the amplified electric signal to the oscillator 143 or the speaker 144.

The address converter 163 performs address conversion processing on the pulse wave information output from the pulse wave sensor 132, and outputs the pulse wave information after the address conversion processing to the analysis unit 151. The address translation process referred to here is the pulse wave information acquired by the pulse wave sensor 132-1 (hereinafter referred to as "first pulse wave information") and the pulse wave information acquired by the pulse wave sensor 132-2 (hereinafter referred to as "first pulse wave information"). Hereinafter, it is a process of associating with "second pulse wave information").

In general, a device in which a plurality of different sensors are connected needs to individually identify the plurality of sensors in order to correctly process the measurement information output from each sensor. The address converter 163 manages the outputs of the two pulse wave sensors 132-1 and 132-2 in different address areas on the memory, so that the analysis unit 151 individually processes the measurement information of the individual pulse wave sensors 132. Allows you to.

The analysis unit 151 analyzes the mental and physical condition of the user based on the respiratory information acquired by the respiratory sensor 20 and the pulse wave information acquired by the pulse wave sensor 132. For example, the analysis unit 151 analyzes the balance and the degree of activation of the sympathetic nerve and the parasympathetic nerve. The analysis unit 151 outputs information indicating the analysis result (hereinafter referred to as “analysis result information”) to the control unit 152. The analysis unit 151 may include a respiration sensor control unit 32.

It is generally known that there is a correlation between the state of breathing and pulse waves and the state of autonomic nerves. For example, the analysis unit 151 acquires the user's respiratory rate, respiratory cycle, and the like by performing statistical analysis, pattern analysis, frequency analysis, and the like on biological information such as respiratory information and pulse wave information. The analysis unit 151 estimates the state of the user's autonomic nerves based on the acquired respiratory rate, respiratory cycle, and the like. Such an analysis method is an example, and any existing method may be used as a method for estimating the state of the autonomic nerve based on biological information.

Further, the analysis unit 151 may compare the mental and physical condition of the user with the mental and physical condition of a third party. The comparison target here may be the biological information itself such as respiratory information and pulse wave information, or may be the analysis result of these biological information. In this case, the biometric information processing apparatus 1 may be configured to store biometric information of a third party or information indicating a mental and physical condition in advance, or may be acquired from another apparatus or recording medium as needed. It may be configured.

Further, the analysis unit 151 may perform analysis at various timings, acquire the mental and physical state of the user, and store it in the control unit 152. For example, the analysis unit 151 may acquire the mental and physical state at the moment when the user's mind is disturbed and store it in the control unit 152. The analysis unit 151 effectively calms or activates the user's pulse wave based on the user's breathing information acquired by the breathing sensor 20 and the user's pulse wave information acquired by the pulse wave sensor 132. The method (cycle of inhalation and exhalation, etc.) may be analyzed. By performing such an analysis, the analysis unit 151 can inform the user, for example, a breath for the user to settle down quickly or a breath for the user to wake up quickly. Further, the analysis unit 151 may notify the user of the breathing for the user to settle down quickly or the breathing for the user to wake up quickly based on the analysis result of another user together with or instead of the analysis information of the user's own mental and physical condition. can. The analysis results of other users may be obtained from, for example, the control unit 152. Further, the analysis unit 151 may analyze the fluctuation of breathing when the user is relaxing. By this analysis, it is possible to preferably acquire a state in which the user is relaxed.

The control unit 152 generates support information to be notified to the user based on the analysis result information of the analysis unit 151 in a format according to the notification form. For example, when the support information is notified visually, the control unit 152 generates screen data for displaying the analysis result information on the display unit 141 as the support information. Further, when the support information is notified by lighting or blinking of the light emitting unit 142, the control unit 152 may generate a control signal for causing the light emitting unit 142 to perform lighting or blinking corresponding to the analysis result information as the support information. good.

Further, for example, when the support information is notified through hearing, the control unit 152 may generate voice data indicating the analysis result information as the support information. Further, for example, when the support information is notified through the sense of touch, the control unit 152 may generate a control signal as the support information for causing the oscillator 143 to vibrate the pattern corresponding to the analysis result information.

The control unit 152 may be configured to generate support information based on the information acquired from the other biometric information processing device 1. For example, the control unit 152 acquires information indicating the mental and physical state of another user from the other biometric information processing device 1, and generates support information for displaying the mental and physical state of the other user together with the mental and physical state of the user of the own device. You may. Further, the control unit 152 may be configured to transmit information such as analysis result information and support information acquired by the own device to another biometric information processing device 1. Further, the control unit 152 may generate the support information in response to the acquisition of the biometric information, or accumulates the biometric information acquired in the past and generates the support information at the required timing. May be good. Further, the support information may be transmitted according to the generation of the support information, or the support information generated in the past may be accumulated and the support information may be transmitted at the required timing. Further, the biometric information and the support information acquired in the past may be stored in the biometric information processing device 1 or may be stored in another device capable of communicating with the biometric information processing device 1.

FIG. 15 is a flowchart showing a flow of processing in which the biometric information processing apparatus 1 of the first embodiment notifies a user of support information. First, in the biometric information processing apparatus 1, the breathing sensor 20 acquires the breathing information indicating the state of the user's breathing, and the pulse wave sensor 132 acquires the pulse wave information indicating the state of the user's pulse wave (step S101). .. The respiration sensor 20 outputs the acquired respiration information to the analysis unit 151, and the pulse wave sensor 132 outputs the acquired pulse wave information to the analysis unit 151.

When the respiration sensor 20 detects the user's respiration, the coil 51 is arranged in the vicinity of the user's abdomen in a non-contact, non-invasive state. When the user breathes, the distance between the user and the coil 51 changes, and the inductance of the coil 51 fluctuates. A signal is output from the signal generator 21 to the coil unit 22, and this signal is output from the coil unit 22. The signal output from the coil unit 22 is out of phase with the fluctuation of the inductance of the coil 51. The respiration sensor control device 30 detects the user's respiration based on the deviation between the signal output from the signal generator 21 and the signal output from the coil unit 22.

Subsequently, the analysis unit 151 analyzes the mental and physical condition of the user based on the respiratory information and the pulse wave information (step S102). The analysis unit 151 outputs the analysis result information indicating the analysis result to the control unit 152.

Subsequently, the control unit 152 generates support information according to the output format based on the analysis result information (step S103). The control unit 152 outputs the generated support information to the functional unit corresponding to the output format (step S104). For example, the control unit 152 may generate support information indicating the strength of respiration or pulse by the lighting color, brightness, or blinking cycle of the LED 111.

Next, the calibration of the signal performed when the respiratory information is acquired will be described. FIG. 16 is a flowchart showing the calibration procedure. As shown in FIG. 16, when starting calibration, first, the signal generator 21 sweeps at an oscillation frequency in a preset range when the user's breathing is in the exhaled state (step S51). .. Subsequently, the signal generator 21 sweeps at an oscillation frequency in a preset range when the user's breathing is in the inhalation state (step S52). While the sweeping is performed in steps S51 and S52, the respiration sensor control unit 32 detects the output signal of the signal processing unit 31.

Subsequently, the respiration sensor control unit 32 determines the oscillation frequency of the signal output from the signal generator 21 (step S53). The breath sensor control unit 32 oscillates the signal output from the signal generator 21 at the frequency at which the difference between the detected value of the signal detected by the sweep in the suction cut state and the detected value of the signal by the sweep in the discharge cut state is maximum. Determined as frequency.

Subsequently, the respiration sensor control unit 32 determines the initial value of the offset to be removed in the offset removal circuit 31B (step S54). The respiration sensor control unit 32 determines the detection value of the signal by the sweep in the exhalation state as the initial value of the offset. After that, the respiration sensor control unit 32 determines the normalized reference value (step S55). In this way, the calibration process in the breathing detector is completed.

Further, the signal output from the coil unit 22 contains noise. Of the noise, large noise is detected as an abnormal value and removed. The removal of abnormal values will be described below. FIG. 17 is a graph showing an example of the time change of the detected value detected by the respiratory detection device. The detection values of the respiration detector are sampled, for example, at evenly spaced times. As shown in FIG. 17, among the respiratory information obtained by the respiratory sensor detection device, there is a portion where a suddenly large change in respiratory volume is generated. This part is considered to be an abnormal value. Further, for detecting an abnormal value, for example, the k-nearest neighbor method is used. Hereinafter, a procedure for drawing _{a detected value X n from} which this abnormal value has been removed will be described. FIG. 18 is a flowchart showing a procedure for drawing the _{detected value X n of respiratory information.} The detected value X _n means that it is the nth detected value.

As shown in FIG. 18, when detecting an abnormal value of respiratory information, the respiratory sensor control unit 32 determines whether or not the number of acquired detected values is 4 or more (step S71). If not Here, the detection value of 4 or higher (step S71: YES), the breathing sensor control unit 32 as it draws the detection value Xn detected (step S75), finish drawing the detection values X _n of respiration information do. If it is determined that the detected value is 4 or more (step S71: NO), the respiratory sensor control unit 32 calculates the median value M of _{X n-3} , X _n-2 , and X _{n-1 (step).} S72).

Subsequently, the respiratory sensor control unit 32 _{determines whether or not the square of the difference between the median value M and the detected value X n} is equal to or greater than a predetermined threshold value (step S73). When it is determined that the square of the difference between the median value M and the detected value X _n is equal to or greater than a predetermined threshold value (step S73: YES), the respiratory sensor control unit 32 determines that the detected value X _n is an abnormal value. In this case, the respiratory sensor control unit 32 sets the detected value X _n to the average value M (step S74). Therefore, since the detected value X _n that has become an abnormal value is replaced with the average value M, the abnormal value is removed. The threshold value here may be determined based on, for example, data such as a performance test of the coil unit 22.

Then, the breathing sensor control unit 32, by drawing a detection value Xn is replaced with the average value M (step S75), and terminates the rendering of the detected values X _n of the respiration information. Further, when it is determined that the square of the difference between the median value M and the detected value X _n is not equal to or more than a predetermined threshold value (step S73: NO), the respiratory sensor control unit 32 draws the detected detected value Xn as it is (step S73: NO). S75), the drawing of the detection value X _n of the respiratory information is completed.

In addition, in this example, in order to remove the abnormal value, the sampling data is set to at least 3 in order to calculate the median value M, but the minimum number may be more than or less than 3. Further, although the detected value Xn is used for detecting an abnormal value by drawing, it may be used for other purposes. For example, it may be used as signal processing for data storage.

Further, the waveform data of the user, which is the detected value, may be accumulated, and the accumulated waveform data may be managed for each respiratory cycle. Further, the degree of similarity or dissimilarity between the managed waveform data and the acquired waveform data may be calculated. Further, an abnormal value may be calculated from the calculated similarity or dissimilarity, and when the abnormal value is equal to or higher than a predetermined threshold value, the respiratory cycle including the acquired respiratory data may be detected as the abnormal value. The respiratory cycle detected as an abnormal value may be processed so as not to be included in the calculation of the user's skill level or the like. This makes it possible to improve the analysis accuracy. It should be noted that the detection of an abnormal value or the like may be performed at the time of shipment from the factory of the biometric information processing apparatus 1.

Further, as the probe, and as the distance sensor capable of measuring the distance between the probe and the human body, a sensor having a function equivalent to that of a capacitor (capacitance sensor) may be used. The capacitor can measure the distance between the probe and the human body by measuring the change in the capacitance of the capacitor formed by the probe and the human body. In the electronic circuit 50 shown in FIG. 8, the capacitor 53 is a capacitor formed by the probe and the human body in this case. Specifically, in the capacitor 53, the upper electrode (the side connected to the resistor 52) is the probe, and the lower electrode (the side connected to the ground) corresponds to the human body. As a capacitor, a probe electrode is placed near the user's abdomen, and charging is performed between the probe electrode and the user's abdomen. As a characteristic of the capacitor, the capacitance C of the capacitor can be expressed by the following equation (5).
C = ε ₀ ε _r S / d (5)
Here, ε _{0 is the} vacuum permittivity, ε _{r is} the total relative permittivity between the capacitor and the ground, S is the electrode area of the capacitor, and d is the total distance between the electrode of the capacitor and the ground. show.

As for the characteristics of the capacitor, the larger the area of the probe electrode, the larger the capacitance. The capacitor preferably has an area of 3 cm × 3 cm or more, and in this case, sufficient sensitivity can be obtained. Further, the capacitance C becomes larger as the user is in the suction-cutting state and the distance between the probe electrode and the user's abdomen is closer, and the capacitance C becomes smaller as the distance between the probe electrode and the user's abdomen is longer. The larger the difference in capacitance C, the larger the obtained signal amplitude.

The shape of the probe electrode may be any shape, for example, a circular shape, an elliptical shape, an oval shape, or a polygonal shape such as a quadrangle, a triangle, or a hexagon. Further, a cylindrical or flat substrate, a flexible substrate pattern, a figure eight shape, or the like may be used. Further, the probe electrode may be divided. In this case, the probe electrodes may be arranged on both front and rear sides of the user's abdomen, or may be arranged side by side. Further, as the substrate, a solid substrate may be used, or it may be circular, elliptical, polygonal or the like. In this case, it is preferable to increase the area. Further, it may be in the form of a cylinder, a flat substrate, a flexible pattern, or a tape. Further, it may be integrated with the housing portion 11. These points may be appropriately applied even when the probe is the coil 51. Further, when arranging the probe electrodes, it is desirable to arrange them so as to be parallel to the user's abdomen.

When a capacitor is used for the probe, it is desirable to ground the user (human body) or connect the user (human body) to the ground side of the circuit. By grounding the user (human body) or connecting the user (human body) to the ground side of the circuit, it is possible to perform measurement with high sensitivity and high noise immunity.

In addition to the above method for observing the movement of a person's abdomen, various methods can be considered as a method for grasping a person's respiratory state. For example, a method of observing the movement of air due to exhalation, a method of observing a change in temperature or humidity due to exhalation, and the like can be considered. In this case, a sensor that outputs information indicating the movement of air or a sensor that outputs temperature or humidity near the mouth of a person may be used as the breathing sensor 20. Further, for example, a method of grasping the respiratory state by observing the abdominal circumference of a person can be considered. In this case, for example, a belt transducer that outputs an electric signal indicating the length of the belt attached to the abdominal circumference may be used as the breathing sensor 20.

Further, the respiration information and other sensing data acquired by the respiration detection device may be displayed as a graph on the display of a PC or a smartphone. The waveform showing the respiratory information is shown graphically, for example, as shown in FIG. Respiratory information and other sensing data may be displayed in real time or past data may be displayed.

Further, when the instructor teaches the user in a yoga class, for example, the instructor's sensing data or the sensing data desirable for the user may be displayed so that the data can be compared with the user's own data.

Further, the probe may be embedded in a screen frame of a PC or tablet, a smartphone, a screen transparent electrode of a PC or tablet, a smartphone, or a cover of a tablet or smartphone, or may be used in combination with these. Further, when holding the biometric information processing apparatus 1 including the breathing sensor 20, it is desirable that the user's hand or finger does not enter between the probe of the breathing sensor 20 and the abdomen.

Further, although the coil portion 22 is provided with a circuit like a low-pass filter, a circuit like a high-pass filter, a band-pass filter, a band-elimination filter, or the like may be provided. Further, a plurality of filters may be configured in multiple stages, or an active filter using an operational amplifier or the like may be configured. Hereinafter, these configuration examples will be described as various modifications of the electronic circuit.

20 (A) to 20 (C) are circuit diagrams showing various modifications of the electronic circuit included in the coil portion 22. In the electronic circuit shown in FIG. 20 (A), the first resistor R11 is provided on the upstream side (signal generator 21 side) of the coil L11, and the first capacitor C11 and the first capacitor C11 and the downstream side (breath sensor control unit 32 side) are provided. One end of the second resistor R12 is connected to each other, and a second capacitor C21 is provided in parallel with the coil L11. By providing the second capacitor C21, the phase change in the vicinity of the cutoff frequency can be made steep and the sensitivity of the breathing sensor 20 can be increased.

In the electronic circuit shown in FIG. 20B, the first resistor R11 on the upstream side of the coil L11 and the first capacitor C11 and the second resistor R12 connected to the downstream side are common to the electronic circuit shown in FIG. 20A. Is. Further, a second capacitor C12 is provided in series with the first resistor R11 and the coil L11 on the downstream side of the coil L11.

In the electronic circuit shown in FIG. 20 (C), the first resistor R11 on the upstream side of the coil L11 and the first capacitor C11 and the second resistor R12 connected to the downstream side are common to the electronic circuit shown in FIG. 20 (A). Is. Further, on the downstream side of the coil L11, a second coil L21 is provided in series with the first capacitor C11.

As another example, in the electronic circuit shown in FIGS. 20 (A) to 20 (C), a plurality of each component of a resistor, a capacitor, and a coil may be provided, or may be set to 0. In addition, each component may be interchanged to form a configuration. For example, the first resistor R11 and the coil L, the coil L and the first capacitor C11 and the like may be appropriately replaced.

The biometric information processing apparatus 1 of the embodiment configured as described above can analyze the physical and mental state of the user based on the biometric information of the user and notify the user of the analysis result in various modes. Thereby, the biometric information processing apparatus 1 can support the mindfulness of the user. In addition to the above-mentioned respiratory information and pulse wave information, information such as the user's epidermal temperature and percutaneous arterial oxygen saturation, SpO2, may be used as the biological information.

For example, the biometric information processing apparatus 1 estimates the state of the user's autonomic nerve using one or both of the respiratory information and the pulse wave information, and notifies the user of the information indicating the estimation result as support information. This enables the user to objectively grasp the self-state during the activity of mindfulness, and efficiently improves the effect of mindfulness by reviewing the activity so that the self-state is improved. be able to.

Further, for example, the biological information processing apparatus 1 can also be used as a health care tool for supporting abdominal breathing practice. In this case, for example, the analysis unit 151 compares the breathing information of the user with the breathing information of a mindfulness expert, and the control unit 152 generates support information based on the comparison result. By providing such support information, the user can practice abdominal breathing while confirming whether or not the abdominal breathing is performed correctly, and it becomes possible to efficiently acquire abdominal breathing. Become.

For example, the analysis unit 151 extracts waveform data whose amplitude is normalized from the user's breathing information and the expert's breathing information, and calculates the mutual correlation coefficient between the extracted waveform data. Further, for example, the analysis unit 151 obtains the respiratory cycle from each waveform data and compares the difference or the absolute value of the difference. The breathing cycle here is the time interval between exhalation and inspiration in continuous breathing motion, and the time interval between inspiration and exhalation. Alternatively, more simply, the respiratory cycle may be the time taken for one breath. The analysis unit 151 outputs the information indicating the change in the mutual correlation coefficient and the difference in the respiratory cycle acquired in this way to the control unit 152 as the analysis result information.

Further, the biometric information processing apparatus 1 of the embodiment can be used for applications other than mindfulness. For example, the biometric information processing device 1 can also be used as a device for alerting the user. In this case, for example, the analysis unit 151 analyzes the degree of calmness and the degree of uplifting of the user based on the biological information, and the control unit 152 generates support information based on the analysis result. By providing such support information, the user can autonomously suppress his / her own runaway. Specifically, it is effective in suppressing the runaway of the user due to excitement in gambling, watching sports, and the like. It is also effective in preventing crimes such as shoplifting.

In addition, the biometric information processing device 1 of the embodiment can also be used as a device for giving a self-suggestion to the user. In this case, for example, the analysis unit 151 generates information indicating the content and means of suggestion for controlling the subconscious mind of the user as support information, and the control unit 152 outputs the support information to the output unit corresponding to the means of suggestion. Output. By providing such support information, for example, the user can make a self-suggestion and calm himself / herself in a situation with tension. Further, since self-suggestion is also effective for motion sickness, the biometric information processing apparatus 1 of the embodiment is also effective for suppressing motion sickness.

In addition, the biometric information processing apparatus 1 of the embodiment can also contribute to facilitating communication between users. In this case, for example, the biometric information processing apparatus 1 is configured to have a size that can be worn on a human body, and includes an output unit that makes support information perceptible through vision. In this case, for example, the biometric information processing apparatus 1 includes a light emitting unit 142 as an output unit. Users wearing the biometric information processing apparatus 1 configured in this way can communicate with each other while grasping each other's mental and physical states. This allows multiple users to share emotions and foster a sense of unity. Further, according to such a biometric information processing apparatus 1, the user can inform only a specific person who wants to convey emotions how the biometric information processing apparatus 1 notifies the support information. It is also possible to convey the feelings of the person indirectly and casually instead of directly.

Further, in the breathing sensor 20 provided in the biometric information processing apparatus 1, the user's breathing is performed based on the phase shift between the signal input from the signal generator 21 to the coil unit 22 and the signal output from the coil unit 22. To detect. Conventionally, not only for grasping the presence or absence of breathing, the respiratory rate, the depth of breathing, etc. of patients and residents in hospitals and nursing homes, but also for grasping the user's breathing in Zen, zazen, yoga, mindfulness, etc. The practical application of the tool to do is being considered. Conventionally, microwaves, radio waves, lasers, electromagnetic induction, contact electrodes, pressure, temperature, flow rate, volume change, shape change, sound, acoustic effect, brain wave, NIRS (Near-) using mats, antennas, cameras, etc. There are studies for directly and indirectly detecting respiration from infrared spectroscopy, near-infrared spectroscopy, radiation, SpO2, etc. However, there are few methods for detecting respiration in a non-contact, non-invasive, or non-wearing manner. On the other hand, since the coil portion 22 of the breathing sensor 20 in the biometric information processing apparatus 1 can be arranged at a position away from the user, the breathing state of the user can be made non-contact and non-invasive by using the breathing sensor 20. It can be detected in the state. Further, the state of the user's breathing can be detected even when the user is not wearing the device.

Further, the respiration sensor 20 detects the user's respiration by using the phase difference of the signal. Therefore, when outputting a signal from the signal generator 21, it is possible to eliminate the need to adjust the output voltage by using a limiting resistor. Further, depending on the circuit configuration and the positional relationship between the user and the probe, there may be a discrepancy between the actual respiration of the user and the data obtained by the respiration sensor. For example, it is possible that the data does not change at a constant gradient even if the user continues to exhale at a constant flow rate. In this case, by calculating a function for correction in advance and converting the data obtained by the respiration sensor 20 by this function, it is possible to associate the actual respiration with the conversion result.

Hereinafter, a modified example of the biometric information processing apparatus 1 of the embodiment will be described. The biometric information processing apparatus 1 may further include an acceleration sensor for the purpose of accurately acquiring respiratory information. For example, when abdominal breathing is not performed well or when the housing portion 11 and the abdomen are in constant contact with each other, the respiration sensor 20 may not be able to sufficiently acquire respiration information. In this case, for example, the analysis unit 151 can acquire the breathing information excluding the influence of the body movement unrelated to the abdominal breathing by correcting the measurement information of the breathing sensor 20 based on the measurement information of the acceleration sensor. .. The accelerometer senses, for example, acceleration in three directions of the XYZ axes, and detects and analyzes the user's shaking, shoulder / arm movement, etc. when breathing. Further, the determination of abdominal breathing and chest breathing may be performed by a breathing sensor and an acceleration sensor. Further, when the fluctuation of the accelerometer is extremely large, it may be possible to notify by light or sound that abdominal breathing is not possible.

As a means for causing the user to perceive the assistive information through the sense of touch, a Pelche element that generates heat transfer according to the applied voltage may be used. The Pelche element is arranged on the surface of the biometric information processing apparatus 1 so as to come into contact with the user's body. In this case, for example, the control unit 152 can make the user perceive the change in the respiratory state by the change in the temperature by outputting the control signal corresponding to the respiratory state of the user to the Pelche element. Specifically, the control unit 152 can make the user perceive "coldness" by outputting a control signal that operates the Pelche element in the endothermic direction when the respiratory cycle is short. Further, the control unit 152 can make the user perceive "warmth" by outputting a control signal that operates the Pelche element in the heat dissipation direction when the breathing cycle is long. The control unit 152 may generate a control signal based on information other than the respiratory state. For example, the control unit 152 may output a control signal according to the analysis result of the user's pulse wave state, mental and physical state, and the like. In addition, what kind of temperature is perceived by the user in what case may be arbitrarily determined. For example, the control unit 152 may output a control signal such that the larger the deviation between the user's respiratory state and the expert's respiratory state, the colder the temperature is perceived, and the smaller the deviation is, the warmer the temperature is perceived. ..

The biometric information processing device 1 may make the user perceive the support information through the sense of smell. For example, an fragrance element may be used as a means for the user to perceive support information through the sense of smell. The fragrance element is an electric element that radiates fragrance to the surroundings by melting and evaporating wax containing a fragrance by energization heating of an electric heating body. The control unit 152 outputs a control signal according to the user's respiratory state to the fragrance element, so that the user can perceive the respiratory state by the presence or absence of fragrance and the intensity of fragrance. Similar to the Pelche element, the control unit 152 may output a control signal to the fragrance element according to the magnitude of the deviation between the user's respiratory state and the expert's respiratory state. As typified by aromatherapy, a pleasant fragrance has the effect of calming a person's mind and body. Therefore, it is possible to improve the effect of mindfulness by making the user perceive the support information of mindfulness by the fragrance.

The biometric information processing device 1 may have a function of controlling the operation of other devices according to the physical and mental state of the user. For example, the control unit 152 generates control information instructing changes such as the brightness of lighting and the set temperature of air conditioning based on the analysis result of the analysis unit 151, and controls the generated control information via the communication unit 161. Send to the target device. As a result, the biometric information processing apparatus 1 can adjust the environment around the user to an environment according to the physical and mental state of the user.

The biometric information processing device 1 may include a charging device and a storage battery so that it can be charged when not in use. Further, a stand on which the biometric information processing apparatus 1 is placed may be provided. The stand may be dedicated to the biometric information processing device 1 or may be shared. The stand may be installed on furniture such as a desk in a room, for example. Further, the counter may be in the form of a wall-mounted countertop, a tabletop, or a mobile countertop, or may be in a form that can be used in combination.

Further, the stand may have a charging function for charging the storage battery of the biometric information processing device 1. The charging function may be by wireless charging or by wired charging. In the case of wireless charging, it may be in accordance with a standard such as QI (wireless power supply), or it may be an original one other than the standard such as QI. In the case of wired charging, for example, a terminal for charging may be provided on the biometric information processing device and the stand.

Vibration power generation may be used or a solar cell may be used for charging. In the case of vibration charging, for example, if a power generation device that generates power by vibration is built in the biometric information processing device 1, the user shakes the biometric information processing device 1 (vibrates the biometric information processing device 1) to generate power. good. In the case of a solar cell, for example, a solar panel may be installed above the biometric information processing device 1 and exposed to sunlight or fluorescent light to generate electricity. Each of these charging functions may be combined with each other. For example, the insufficient charge such as vibration power generation or solar power generation may be supplemented by wired charging.

The stand may, for example, have the function of a power switch. In this case, for example, a magnet may be built in the pedestal, and a hall sensor may be built in the biometric information processing apparatus 1. With these magnets and the Hall sensor, the biometric information processing apparatus 1 can detect the magnet and turn off the power when it is placed on the table.

Further, as the start switch when starting the measurement in the biometric information processing apparatus 1, one equipped with an acceleration sensor may be used. In this case, for example, when the user holds the biometric information processing device 1 and starts the practice of abdominal breathing, the triple tap may be performed when the double tap ends. The accelerometer can also recognize the user's gesture and can be assigned to another operation. Further, it is preferable to provide the start switch at a position where the user touches when using the biometric information processing apparatus 1, such as the bottom of the housing portion 11. In this case, the operation can be started by the user holding the biometric information processing apparatus 1 by hand. Further, when the start switch is, for example, an optical sensor, it is preferable that the stand on which the provided biometric information processing apparatus 1 is placed has a structure capable of shielding the start switch. In this case, it is possible to prevent the start switch from malfunctioning due to external light.

Further, the biometric information processing apparatus 1 may have a built-in wind sensor or a ventilation system. The wind sensor measures, for example, the wind environment around the user. Specifically, the wind sensor measures, for example, the direction, strength, temperature, water content, and the like of the wind. The biometric information processing device 1 is used to change the lighting and lighting of the light emitting unit 142, the BGM output from the speaker, and to analyze the correlation with the biometric information based on the data measured by the wind sensor. You can do it. The ventilation system can give the user an arbitrary strength and direction of wind. The odor of temples, forests, etc. may be added to the wind given by the ventilation system. The ventilation system may act as an air purifier.

The biometric information processing device 1 may have a built-in EMS device that applies electrical muscle stimulation (EMS) to the user. By applying an electrical stimulus to the user in accordance with the user's breathing from the EMS device, the user can give the user a feeling of being alerted to the shoulder. The shape of the EMS device may be one in which a gel is applied to an energized surface that comes into contact with the skin, or one in which an adhesive pad is directly attached to the skin. In addition to the keisaku, it may be combined with a system such as a ventilation system or a sound device so that you can experience waterfall meditation and zazen in a simulated manner.

The biometric information processing device 1 may have a built-in holography. For example, the system that interacts with the user may be visualized into a mascot or the like by using holography, and the image of the mascot may be changed in conjunction with breathing. Further, by providing a voice recognition device and combining it with the voice recognition device, the user can operate only by voice when starting measurement or referring to a record. Examples of the display location of the image by holography include an arbitrary location such as a biometric information processing device, a floor, and a desk.

The respiration sensor 20 can be configured by using an image sensor instead of the above-mentioned capacitance sensor, signal delay sensor, or the like. The image sensor may acquire an image of visible light or an image of infrared light. In this case, for example, the image sensor is installed at a position where the user's abdomen can be imaged, and observes the movement of the user's abdomen based on the image data acquired in time series. When the subject of the image sensor changes according to the movement of the user's abdomen, the image sensor does not necessarily have to be installed at a position where the user's abdomen can be imaged. In this case, the image sensor may observe the movement of an arbitrary subject and calculate the movement of the user's abdomen based on the observed movement of the subject. Here, as a method of tracking the movement of the subject, an object tracking method such as a particle filter that tracks a predetermined area in the image or an optical flow that tracks feature points in the image can be used. The amount of movement of the subject can be obtained by calculating the distance between the same subjects in each frame (for example, 30 fps), but the sampling rate is improved by performing resampling processing such as linear interpolation and spline interpolation. You may let me. Further, the image sensor may measure the size of the contour of the abdomen, the distortion of the contour, the amount of translation of the abdomen, the amount of rotation, and the like, and measure the respiratory state of the user based on the measured values. Further, the image sensor does not necessarily have to be built in the biometric information processing apparatus 1. For example, the image sensor may be configured separately from the biometric information processing apparatus 1 and transmit respiratory information to the biometric information processing apparatus 1 by communication.

The breathing sensor 20 may be one that senses a change in the volume of the abdomen. On the other hand, the capacitance sensor, the signal delay sensor, and the like described in the above embodiment sense the volume of the abdomen and the distance between the sensor and the abdomen without separating them. Therefore, by using distance sensors such as ultrasonic sensors and ToF (Time of Flight) sensors together and subtracting measurement data such as ultrasonic sensors and ToF sensors from measurement data such as capacitance sensors and signal delay sensors, the abdomen Changes in volume can be detected.

The analysis unit 151 may calculate a more appropriate respiration pace and respiration time based on the result of analyzing the degree and balance of activation of the user's autonomic nerve. For example, the analysis unit 151 calculates the respiratory pace and the respiratory time that activate the parasympathetic nerve for a person whose sympathetic nerve is excessively activated. Further, for example, the analysis unit 151 calculates the respiratory pace and the respiratory time that activate the sympathetic nerve for a person whose parasympathetic nerve is excessively activated. By notifying the user of the breathing pace and the breathing time calculated in this way, the user can more efficiently prepare the autonomic nerves.

The biometric information processing device 1 may have a function of sharing support information provided to a user of the own device with another user. For example, the biometric information processing device 1 may send and receive support information to and from another biometric information processing device 1, and may share support information via a server on the cloud that can communicate via a network. May be good. Further, in this case, the analysis function of the biological information possessed by the analysis unit 151 and the generation function of the support information possessed by the control unit 152 may be provided in the server on the cloud. In this case, the biometric information processing apparatus 1 may transmit biometric information such as acquired respiratory information and pulse wave information to the cloud server, receive support information generated by the cloud server, and notify the user.

Further, in this case, the cloud server may perform user ranking, scoring, and the like based on the biometric information of each user, and provide support information indicating the result to the biometric information processing apparatus 1. For example, a cloud server ranks based on the time from when a user starts sitting to an ideal state (respiratory rate or pulse rate), the duration of the ideal state, and the cumulative number of times the user has reached the ideal state. And scoring may be performed. Further, such support information may be transmitted not only to the biometric information processing device 1 but also to a user terminal such as a smartphone, a mobile phone, or a PC.

The biometric information processing apparatus 1 may include a learning function (AI: artificial intelligence) in the control unit 152 so that the user can be identified from the pulse wave data and the respiratory data. In addition, the user's abdominal breathing proficiency may be calculated from the user's past usage time and past practice results. Further, when supporting the practice of abdominal breathing, support information of an appropriate difficulty level may be provided according to the skill level of the user. This allows the user to practice effective abdominal breathing at all times.

This learning function may be possessed by a smartphone application or PC software when interlocking with a user terminal such as a smartphone or a PC. In this case, the user information and the learning record so far are acquired by the linked application or PC software. Since the application and PC software have user information, it is possible to practice abdominal breathing as usual even with another biometric information processing device that is not normally used. The newly acquired information on abdominal breathing practice is saved in the application and PC software.

This learning function may be provided on the cloud server. In this case, as long as the biometric information processing device 1 is connected to the network, any biometric information processing device can be used for practice based on the practice records so far. In order to realize the above functions, it is necessary to eliminate or reduce individual differences between a plurality of biometric information processing devices. In order to eliminate or reduce individual differences, the respiratory sensor 20 is calibrated at the time of shipment from the factory. Calibration fine-tunes the frequency of the signal applied to each individual sensor so that the output of the respiratory sensor 20 is constant.

Further, the biometric information processing apparatus 1 may include an SD card. In this case, the biometric information processing apparatus 1 can store various data such as user information and respiration data by using the SD card. Further, by replacing the SD card, even different users can customize the biometric information processing apparatus 1 for each user. Further, the biometric information processing device 1 may have a built-in headphone jack so that it can cooperate with the headphones. In this case, the biometric information processing apparatus 1 can let the user listen to comfortable music or the like so that the user can concentrate more when performing abdominal breathing.

The control unit 152 may be configured to notify the user of the usage status of the biometric information processing device 1. For example, the control unit 152 may turn on or blink the LED 111 according to the number of times the biometric information processing device 1 is used, or may be configured to notify the user terminal of the number of times of use. Further, for example, the control unit 152 may acquire information indicating the usage status of the biometric information processing apparatus 1 from the cloud server and notify the user. In this case, for example, the cloud server collects information indicating the usage status of each user from each biometric information processing device 1, and ranks the information according to the number of times of use, the length of usage time, and the like. The control unit 152 inquires the cloud server which number among all the users the user of the own device is, and notifies the user of the result of the inquiry.

The control unit 152 may output predetermined information to the output unit 14 when a predetermined predetermined condition is satisfied. For example, the control unit 152 may blink the LED 13 on a holiday, a holiday, or a date and time registered in advance by the user, or may display a predetermined message on the display unit 113. The predetermined information may be notified to the user terminal.

In order to suppress the deterioration of the measurement accuracy of the breathing sensor 20, the biometric information device 1 has electronic components, members, etc. that may affect the sensing of the breathing sensor 20 between the probe portion and the abdomen of the breathing sensor 20. It is desirable not to have. For example, it is desirable that the biometric information processing apparatus 1 is configured so as not to have a member other than the housing portion 11 around the probe portion of the respiratory sensor 20 or between the probe portion and the user's abdomen.

It is desirable that the housing portion 11 has a shape so that the user can stably hold the biometric information processing apparatus 1. Further, it is desirable that the housing portion 11 has a display indicating a correct holding method or the like so that the user can stably hold the biometric information processing apparatus 1. For example, the housing portion 11 may be displayed to assist the user in holding the biometric information processing apparatus 1 in the correct orientation with the state in which the respiratory sensor 20 faces the user's abdomen as the correct orientation. Further, for example, the housing portion 11 may have a shape that facilitates holding in such a correct orientation. Therefore, the housing portion 11 may be provided with a holding portion for holding the biometric information processing apparatus 1 in a predetermined orientation, or may have a display for supporting such holding. For example, the housing portion 11 may be provided with a recess that determines the position of the user's finger or palm. Further, for example, the housing portion 11 may have a bowl-shaped or mortar-shaped shape so that it can be easily fitted in the palm of a user who is doing zazen. Further, the housing portion 11 may have a display, a color scheme, a shape, or the like indicating a portion that comes to the upper side and a portion that comes to the lower side when correctly held. For example, in the housing portion 11, the upper surface may be colored red and the lower surface may be colored blue. Further, for example, the surface of the housing portion 11 may be provided with a line indicating a boundary between the upper side and the lower side, an uneven portion, or the like. Further, for example, the housing portion 11 may have a shape in which the upper side is smaller than the lower side. In this case, the upper side may be a brighter color than the lower side. Further, the light emitting portion 142 may be provided on the upper side, and the upper side may be lighter than the lower side. Further, on the surface of the housing portion 11, a display or description may be made so that the top / bottom, front / back, or left / right of the biometric information processing apparatus 1 can be identified.

The light emitting unit 142 may be, for example, an array of a plurality of LEDs whose color and brightness can be adjusted from the outside. By providing a plurality of LEDs, the decoration can be gorgeous. The light emitting unit 142 may be connected to, for example, a control unit for individually adjusting the color and brightness of each LED. By providing the control unit, it is possible to suitably control the light emission in the light emitting unit 142. The plurality of LEDs in the light emitting unit 142 may be arranged in any manner, and for example, they may be arranged on the circumference on the upper side or the lateral side of the housing portion 11. Such an arrangement can be visually pleasing.

The analysis unit 151 may adjust the timing of acquiring measurement information from the respiration sensor 20 and the pulse wave sensor 132. For example, the analysis unit 151 may start the acquisition of the respiratory information at the timing when the pulse wave information is acquired from the pulse wave sensor 132, or the acquisition of the pulse wave information at the timing when the respiratory information is acquired from the respiratory sensor 20. May start.

The biometric information processing device 1 may be configured to output a voice indicating how to use the own device from the speaker 144. Further, the biometric information processing device 1 may be provided with a voice output unit for connecting a voice output device such as earphones or headphones, and may be configured to output voice indicating how to use the own device to these voice output devices. ..

The display unit 141 provided by the bio information processing device 1 as one of the output units 14 may be an external display device that is not built in the bio information processing device 1. For example, when sharing support information among a plurality of users, it is desirable that the external display device is a display device provided with a large display unit so that the plurality of users can easily see the support information. Similarly, the light emitting unit 142, the oscillator 143, the speaker 144, and the like provided as the output unit 14 may also be configured as an external device that is not built in the biometric information processing device 1. For example, an example of an external device may be an acoustic device that can be worn on the human body, such as an earphone, a neckband type speaker, or glasses with a built-in speaker.

The display of the support information may be triggered by the start or end of measurement of the respiration sensor 20 or the pulse wave sensor 132. For example, the support information may be displayed at the same time as the measurement start or the measurement end, or may be performed after a predetermined time has elapsed from the measurement start or the measurement end.

The control unit 152 may generate support information indicating a comparison between the current analysis result and the past analysis result.

The biometric information processing device 1 may be linked with an external device. For example, the biometric information processing device 1 and an external device are linked to display the content. Examples of the external device linked with the biometric information device 1 include a display mounted on a vehicle such as a television, a PC, a smartphone, a tablet, a smart watch, a head-mounted display, a projector, and an aircraft. The contents displayed on these external devices include breathing teacher data, breathing, pulse wave, body temperature, sweating amount, temperature, humidity, center of gravity, O2, CO2, and other measurement data, graphs, aroma types, and elapsed time. , Respiratory information processing device status (measuring, trial calculation, battery level, charging, etc.), error display, setting screen, guidance movie, landscape video, remote user status, ranking, SNS screen, videophone , Self-portrait image (built-in camera), etc.

Further, examples of the external device linked with the biometric information processing device 1 include a robot, a ring, a wristband, lighting, and air conditioning. Examples of the ring and the wristband include those having a built-in sensor such as a user's pulse wave, body temperature, sweating amount, center of gravity, O2, CO2, and the like. By combining the information obtained from the respiratory information processing device and the ring or wristband, the user's situation can be grasped in detail and accurately. Further, as the lighting and air conditioning, those capable of adjusting the illuminance and intensity according to the measurement data such as the user's breathing, pulse wave, body temperature, sweating amount, center of gravity, O2, CO2, etc. are used. By adjusting the lighting and air conditioning, it is possible to provide a calm environment for the user.

In addition, the robot can be operated according to the following contents. In addition, the following contents of the ring and wristband assist the user in grasping the situation. Further, in lighting and air conditioning, the illuminance and intensity can be changed by the following contents. The contents for these include, for example, measurement data and graphs such as breathing teacher data, breathing, pulse wave, body temperature, sweating amount, temperature, humidity, center of gravity, O2, CO2, elapsed time, status of respiratory information processing device. (Measuring, trial calculation, remaining battery level, charging, etc.), error display, remote user status, ranking, etc. can be listed.

Further, as an external device linked with the biometric information processing device 1, a projector can be mentioned. The projector may be provided separately from the biometric information processing device 1, or may be built in the biometric information processing device 1. In the projector built in the biometric information processing apparatus 1, for example, information corresponding to the following contents can be displayed on the front wall surface or the floor surface. The contents for displaying information include, for example, breathing teacher data, breathing, pulse wave, body temperature, sweating amount, temperature, humidity, center of gravity, O2, CO2, and other measurement data and graphs, aroma type, elapsed time, etc. Status of breathing information processing device (measuring, trial calculation, remaining battery level, charging, etc.) Error display, setting screen, guidance movie, landscape image, remote user status, ranking, SNS screen, videophone, self The captured image (built-in camera) can be mentioned.

When linking with an external device, for sending and receiving data to and from an external device, one or both of the private communication function such as BLE, Wifi, SubGHz communication and the communication function with a public line (mobile communication network, public Wifi, LPWA, etc.) are used. You may use it. Alternatively, visible light communication may be used. Further, these external devices may be provided inside the housing portion 11.

Further, the biometric information processing apparatus 1 may have a built-in oscillator, a motor, or the like so that the display by these can be notified. It may also have a built-in speaker to provide music, breathing teacher procedures, and the like. Further, instead of or in addition to the notification or provision by these, the notification or provision may be performed by using an external device such as a television screen, a PC, or a smartphone. In addition, when the oscillator is provided in the biometric information processing apparatus 1, if the noise generated by the vibration of the oscillator may be unpleasant, a canceling structure for canceling the noise may be provided.

Further, the biometric information processing apparatus 1 may provide a service according to the user's situation when outputting music from a speaker, providing fragrance by an fragrance element, or causing the light emitting unit 142 to emit light. For example, when the user wants to calm down, music that calms down may be output from the speaker, and when the user wants to be awakened, music that encourages awakening may be output from the speaker.

Further, the biometric information processing apparatus 1 is provided with a light transmitting portion on a part of the housing portion 11, for example, a side portion, and the light emitted from the light emitting portion 142 through the light transmitting portion is sent to the outside of the housing portion 11. It may be made to radiate. Further, the biometric information processing apparatus 1 is provided with an internal position sensor when radiating the light emitted from the light emitting portion through the light transmitting portion to the outside of the housing portion 11, and the housing portion 11 is in a predetermined posture. You may irradiate light at the time. For example, the light irradiation unit may irradiate light upward when the opening provided in the housing portion 11 faces directly upward.

Further, the biometric information processing apparatus 1 may have a projector and a 3-axis sensor built in the front surface. In this biometric information processing apparatus 1, information by an image is displayed on the front wall surface or the floor surface, and an operation based on the displayed information is performed. The biometric information processing apparatus 1 can move a pointer that specifies information displayed by a projector, for example, by tilting it back and forth and left and right. Further, the information specified by the pointer can be determined by double-clicking with the finger supporting the biometric information processing apparatus 1. In this way, any button can be selected from the plurality of buttons in the image displayed by the projector. Further, the button can be pressed by lowering the biometric information processing device 1. Further, even if the biometric information processing apparatus 1 is moved back and forth and left and right, the image displayed by the projector can be prevented from moving from the original display position in conjunction with the movement by the 3-axis sensor. Therefore, the target button can be reliably selected, determined, and pressed.

Further, the biometric information processing apparatus 1 may include a projector and a sensor for detecting a user's fingertip in front of the biometric information processing apparatus 1. In this biometric information processing apparatus 1, information by an image is displayed on the front wall surface or the floor surface, and the displayed information is operated. Examples of the displayed information (screen) include an operation screen, a setting screen, and a screen as a communication tool with a remote user. Further, the projector may be a laser projector.

Further, the biometric information processing apparatus 1 may have a surface material, shape, structure, center of gravity, or the like of the housing portion 11 devised as a fall prevention or a measure against the fall. The surface material of the housing portion 11 may be, for example, a soft and non-slip material such as silicon rubber or cloth. In this case, the biometric information processing device 1 is less likely to slip off the hand, which can contribute to fall prevention. Further, if the material is soft, it can easily absorb the impact when dropped. In addition to the housing portion 11 being made of these materials, a part of the housing portion 11, for example, a position where the user touches it or a position where it is easy to face downward when dropped may be used as these materials. Further, the housing portion 11 may be covered with a cover made of these materials.

As the shape of the biometric information processing apparatus 1 (the shape of the housing portion 11), it is preferable to have a dent or a groove serving as a guide so that a finger can easily catch it, and to have a shape that does not easily slip off from the hand. Alternatively, the housing may have a spherical shape. In this case, when the biometric information processing apparatus 1 falls, it rolls, so that it is possible to easily absorb the impact. Further, the shape of the biometric information processing apparatus 1 may be a bowl type, a dish type, a ball type, a stick type, a tubular shape, a belt type, a mat type, a helmet type or the like.

Further, the biometric information processing apparatus 1 has a double structure of an outer shell and an inner shell in which the housing portion 11 can be relatively displaced from each other, and various parts such as a sensor and a substrate are enclosed in the inner shell to form the outer shell. A fluid such as air or gel or a shock absorbing material such as an elastic body may be enclosed between the inner shell and the inner shell. Of these, various materials can be used for the outer shell, from solid to soft materials such as cloth and balloons. In this case, even if the biometric information processing apparatus 1 falls and collides with the floor surface or the like, the impact on various parts such as the sensor and the substrate enclosed inside the inner shell can be reduced. Therefore, damage to various parts can be prevented.

Further, the biometric information processing apparatus 1 may have a double structure of an outer shell and an inner shell, and various parts such as a sensor and a substrate may be enclosed in the inner shell, and the outer shell may have a structure that is easily divided by an impact. The structure of the outer shell may be, for example, a combination of pre-divided hemispherical parts. In this case, when the biometric information processing apparatus 1 falls and collides with the floor surface or the like and an impact is applied to the biometric information processing apparatus 1, the outer shell is easily divided, so that the biometric information processing apparatus 1 is enclosed inside the inner shell. The impact on various parts such as sensors and boards can be reduced.

Further, the biometric information processing apparatus 1 has a double structure of an outer shell and an inner shell, and the orientation of the biometric information processing apparatus 1 (inner shell) so that the breathing sensor 20 is on the abdominal side (for example, the lower side) of the user. It may be an orientation adjustment structure for adjusting. The orientation adjustment structure is a structure in which the orientation of the biometric information processing apparatus 1 is detected by a gyro sensor or an acceleration sensor, and the orientation of the detected biometric information processing apparatus 1 is adjusted so that the breathing sensor 20 faces the user's abdomen. You just have to have. Further, the center of gravity of the ball may be designed so that the breathing sensor 20 is on the abdominal side (for example, the lower side) of the user. Therefore, for example, a heavy oscillator may be arranged in the lower part of the housing portion 11. Further, when the center of gravity is arranged downward, the lower surface of the dropped biometric information processing apparatus 1 is likely to collide with the floor surface, so that a shock absorbing material (cushioning material) may be arranged on the lower surface. Further, the impact at the time of dropping may be mitigated by a soundproof material.

Further, a display unit may be provided on the upper portion of the housing portion 11 of the biometric information processing apparatus 1, and the center of gravity of the housing portion 11 may be located at the lower portion of the biometric information processing apparatus 1. In this case, the living body. Even when the information processing device 1 falls and collides with the floor surface or the like, it is possible to suppress the fall of the display unit and prevent damage to the display unit. Further, in this case, a soft cushioning material may be provided in the lower part of the housing portion 11.

Further, a natural material or a naturally derived material may be used as the exterior material of the biometric information processing apparatus 1, for example, the housing portion 11. Since the exterior material of the biometric information processing apparatus 1 is a natural material or a naturally derived material, the user's feelings can be healed and the calmness of the mind can be promoted. Examples of natural materials and naturally derived materials include wood, lacquer ware, glass, stones, and cloth.

Further, the biometric information processing apparatus 1 may repeatedly swing back and forth and left and right, and the light emitting unit 142 may blink to show a dancing motion. As described above, the timing at which the biometric information processing apparatus 1 shows a dancing movement may be various timings. For example, the matching between the teacher data and the user's measurement data may exceed a specific value. Alternatively, it may be when the biometric information processing apparatus 1 has not been used for a certain period of time. Alternatively, it may be when a registered remote user starts using the product.

Further, when using the biometric information processing device 1, breathing may be performed according to the teacher data, or other breathing may be performed. As the breathing other than the breathing according to the teacher data, the user may breathe naturally. In this case, the biometric information processing apparatus 1 may accumulate various data obtained from sensors such as the user's breathing, pulse wave, heartbeat, blood pressure, body temperature, CO2 gas, SpO2, sweating, and brain wave. Further, the biometric information processing apparatus 1 may compare the accumulated data with the detected data and detect an abnormality of the user based on the difference between the two.

Further, music having a rhythm close to the teacher data may be played from the speaker 144 of the biometric information processing apparatus 1. Further, even when the teacher is in a remote place, the voice of the teacher in the remote place may be played from the biometric information processing apparatus 1. In addition, the biometric information processing device 1 can also be used in maternity yoga. In this case, the pregnant woman can measure fetal movement and fetal pulse. The measured data may be accumulated, transferred to a doctor, or both. In this case, the pregnant woman and the doctor can grasp the situation of the pregnant woman and the foetation.

Further, when assembling various parts in the biometric information processing apparatus 1, a special screw or a disassembly prevention sticker may be used, or a switch for detecting disassembly may be provided. Further, the screw may have a switch function. In these cases, it is possible to prevent the biometric information processing apparatus 1 from being disassembled.

Further, a failure detection structure for detecting the failure of the biometric information processing device 1 may be provided. In this failure detection structure, when a failure of the biometric information processing device 1 is detected, for example, the LED in the light emitting unit 142 provided in the housing portion 11 is turned on or blinked to respond to the occurrence of the failure. It may be displayed. In this case, the failure of the biometric information processing apparatus 1 can be easily recognized from the outside.

The biometric information processing apparatus 1 may have the following functions, for example, when it is used and when it is not used.
[while using it]
(1) The average value (breathing cycle, respiratory rate, breathing depth, breathing measurement waveform, etc.) is displayed based on the measurement data of self-breathing for two or more cycles. In this case, it can be used as a reference for suppressing the disturbance of each breath of the user.
(2) Record and display daily respiratory rate and respiratory depth trends. In this case, the user can estimate his / her health condition and the like.
(3) Display the recommended respiratory rate and breathing depth. In this case, it is possible to assist the user in appropriate exercise and the like.
(4) A guide such as a finger or a print is provided so that the biometric information processing apparatus 1 can be naturally held in the correct direction, or the biometric information processing apparatus 1 is guided by a built-in LED or the like. In this case, the user can correctly hold the biometric information processing device 1.
(5) If the orientation of the biometric information processing device 1 is incorrect, a built-in LED, vibration, a speaker, or the like is used to notify the device. In this case, it is possible to inform the user that the orientation of the biometric information processing apparatus 1 is different.
(6) Make various settings (user identification, customization, etc.) possible on a PC or smartphone. In this case, the biometric information processing apparatus 1 can be shared by a plurality of users.
(7) Pulse wave, heartbeat, blood pressure, acceleration and tilt (movement of center of gravity, shaking of trunk, collapse of posture, vibration of body), room temperature, body temperature, CO2 gas, SpO2, humidity, sweating, brain wave, pressure, illuminance, It also has a built-in sensor such as myoelectricity, which enables measurement and analysis of physical condition, environmental conditions and changes. In this case, in addition to the biometric information of the user, the environmental information around the user can be acquired.
(8) By acquiring a biomarker from blood and measuring the amount of serotonin, the same measurement and analysis can be performed. In this case, biological information other than respiratory information and pulse wave information can be suitably acquired.
(9) Data is processed in the cloud. In this case, the data can be easily saved.
(10) Fix the place where the center of gravity hits the floor when falling, and strengthen the place. In this case, damage to the biometric information processing apparatus 1 can be suppressed.
(11) Provide a mounting part to which a string hanging from the neck or a strap wrapped around the wrist can be attached. For example, a hole for a finger is provided. In this case, it can contribute to the determination of the holding posture of the biometric information processing apparatus 1 and the prevention of falling.
(12) A heating device is built in the housing portion 11 to warm the user's stomach and hands. In this case, a hyperthermic effect can be produced.
[When not in use]
(1) It can be charged just by placing it on the table, and the amount of charge is displayed. In this case, the charging status can be easily grasped.
(2) A timer is provided on the stand or the biometric information processing device 1 so as to shift to the sleep mode in a certain time. In this case, the power saving of the biometric information processing apparatus 1 can be achieved.
(3) When the biometric information processing device 1 is placed on the table, the incoming call of the PC or smartphone is displayed. In this case, the incoming call of the PC or the smartphone can be surely recognized.

The biometric information processing apparatus 1 can be used in the following embodiments, for example, when it is used at home and when it is used and when it is not used.
[while using it]
(1) It can be useful for family health management.
(2) The user can be identified by biometric authentication.
(3) The biometric information processing device 1 can be built into a stuffed animal or the like.
[When not in use]
(1) Illuminations, smart speakers, TV speakers, radios, and temporary alarm functions can be built-in.
(2) The safety status of the remote family can be displayed.
(3) It can be used as an LED or a speaker that induces sleep.
(4) By incorporating a clock for grasping the actual time, it can be used as an alarm clock or the like.

The biometric information processing apparatus 1 can be used in the following modes when it is used and when it is not used, for example, when it is used in a classroom, a facility, a workplace, an event of a scale of about several tens of people, or the like.
[while using it]
(1) Personal authentication and billing can be performed using a card slot for personal authentication, a contactless IC card, or the like.
(2) When the specifications are specified only by students in the classroom, they can be used in the same manner as when used at home.
(3) When the specifications are made by teachers and students in the classroom, students can be centrally managed by BLE or WiFi. Also, you can grasp the tendency of all classmates.
(4) It is built into desks, chairs, beds, toilets, etc. and can be used at all times.
[When not in use]
(1) It can be stored in a rack for storage or charging, a container, or the like.

The biometric information processing apparatus 1 can be used in the following modes when it is used and when it is not used, for example, when it is used at an event of a scale of several hundred people or more.
[while using it]
(1) By ad hoc communication, communication can be used without interruption even when used in a wide range where radio waves from a small number of base stations do not reach.
(2) The client-server function can be demonstrated.
(3) The built-in LED can be lively with the overall linked display (teacher data, music, etc.). (4) It can be provided with waterproof and dustproof functions. In this case, it can also be used for training in a waterfall or in a bathtub.
(5) The position can be grasped and recorded by GNSS, Beacon, and an altimeter, and processing can be performed according to the position. For example, it is possible to grasp the usage status of a yoga studio, a large-scale event venue, a train, etc., and switch the setting according to the situation.
[When not in use]
(1) It can be stored in a rack for storage or charging, a container, or the like.

(Second embodiment)
In the second embodiment, a configuration example of the housing portion 11, the oscillator 143, and the speaker 144 that enables the biometric information processing apparatus 1 to more efficiently perceive the support information to the user will be described.

[First configuration example]
FIG. 21 is a diagram showing a first configuration example of the biometric information processing apparatus 1 of the second embodiment. In the first configuration example, the housing portion 11 includes a first member 111 whose vibration damping rate is larger than a predetermined reference value in the holding portion of the respiration sensor 20, and the vibration damping rate is the above-mentioned other portion. A second member 112 smaller than the reference value is provided. The first member 111 and the second member 112 may be made of the same material or may be made of different materials. For example, when a member of the same material is used for the first member 111 and the second member 112, a thick member may be used for the first member 111 and a thin member may be used for the second member 112. Further, for example, when a member made of a different material is used for the first member 111 and the second member 112, a member having low rigidity may be used for the first member 111, and a member having high rigidity may be used for the second member 112.

In the biometric information device 1 of the first configuration example as described above, the vibration of the oscillator 143 and the vibration due to the voice output by the speaker 144 are transmitted by the first member 111 having a small attenuation factor, so that the oscillator 143 and the speaker The support information output by 144 can be more reliably perceived by the user. On the other hand, in the biometric information processing apparatus 1, since the first member 111 having a large vibration attenuation rate holds the breathing sensor 20, it is possible to reduce the influence of the vibration by the vibrator 143 and the speaker 144 on the breathing sensor 20. .. Therefore, it is possible to suppress a decrease in the measurement accuracy of the respiration sensor 20.

[Second configuration example]
FIG. 22 is a diagram showing a second configuration example of the biometric information processing apparatus 1 of the second embodiment. In the second configuration example, the housing portion 11 is made of a material having a surface density M satisfying the following equation (11).

In the formula (1), TL [dB] represents a loss when a sound wave having a frequency f passes through a material having an area density M. Here, when the frequency of the sound output by the speaker 144 is f and the housing portion 11 is made of a material having a surface density M, the speaker 144 outputs when the TL is 10 dB (an example of a threshold value) or more. The sound to be heard is blocked by the housing portion 11. As a result, the sound propagating to the outside of the housing portion 11 is relatively louder than the vibration sound of the vibrator 143. Therefore, by configuring the housing portion 11 with a material having a surface density M such that the transmission loss TL of the sound of the frequency f output by the speaker 144 is smaller than 10 dB, the sound output by the speaker 144 can be produced with high sound quality. It can be propagated to the outside. As a result, the biometric information processing apparatus 1 can make the user perceive the support information more efficiently.

[Third configuration example]
FIG. 23 is a diagram showing a third configuration example of the biometric information processing apparatus 1 of the second embodiment. In the third configuration example, the amplitude or phase of the electric signal (hereinafter referred to as “input signal”) of the support information input to the vibrator 143 and the speaker 144 is adjusted according to the support information. This adjustment is performed by the control unit 152. By such adjustment of amplitude or phase, the vibrator 143 vibrates with different intensity or phase according to the support information, and the speaker 144 outputs the sound of different intensity or phase according to the support information. In this case, the biometric information processing apparatus 1 performs different patterns of vibration depending on the degree of interference between the vibration of the housing portion 11 by the vibrator 143 and the vibration of the housing portion 11 by voice. Therefore, by adjusting the combination of the amplitude or phase of the input signal to the vibrator 143 and the amplitude or phase of the input signal to the speaker 144 according to the support information, the support information has a different vibration pattern according to the support information. Can be perceived by the user. Further, since the vibrator 143 vibrates with an amplitude or phase adjusted according to the support information, a vibration sound of intensity or phase corresponding to the support information is generated. Therefore, the biometric information processing apparatus 1 can make the user perceive the support information with different vibration sounds according to the support information.

[Fourth configuration example]
FIG. 24 is a diagram showing a fourth configuration example of the biometric information processing apparatus 1 of the second embodiment. In the fourth configuration example, the biometric information processing apparatus 1 includes a first oscillator 143-1 and a second oscillator 143-2. The phases of the two oscillators 143-1 and 143-2 are adjusted by the control unit 152. By adjusting the phase in this way, the biometric information processing apparatus 1 vibrates differently depending on the combination of the phases of each oscillator 143. The control unit 152 can vibrate the biometric information processing apparatus 1 with a vibration pattern according to the support information by changing the phase combination according to the support information. For example, the control unit 152 may generate a larger vibration by adjusting the phases of the oscillators 143 to the same phase. Further, the control unit 152 may suppress the vibration by adjusting the phase of each oscillator 143 to the opposite phase. Further, the control unit 152 may amplify the surface wave of the housing unit 11 by adjusting the phase difference of each oscillator 143 to 90 °. For example, in the example of FIG. 24, when the phase of the vibrator 143-1 is adjusted to + 90 ° with respect to the phase of the vibrator 143-2, the surface wave propagating to the right on the surface of the housing portion 11 is amplified. .. Further, when the phase of the vibrator 143-1 is adjusted to −90 ° with respect to the phase of the vibrator 143-2, the surface wave propagating to the left on the surface of the housing portion 11 is amplified. It should be noted that such adjustment of the vibration pattern may be used as a means for notifying the user of the correct usage of the biometric information processing apparatus 1. For example, the biometric information processing apparatus 1 is configured to notify the user by vibration when one or both of the pulse wave sensors 132-1 and 132-2 cannot correctly measure the user's pulse wave. May be good. For example, the control unit 152 may adjust the phase of each oscillator 143 so as to amplify the surface wave facing to the right when the pulse wave of the right hand is not measured. By making such a notification, the user can improve the usage of the biometric information processing apparatus 1. The propagation direction of the surface wave to be amplified is not limited to the left and right, and may be adjusted in any direction by changing the installation position of the vibrator 143.

[Fifth configuration example]
FIG. 25 is a diagram showing a fifth configuration example of the biometric information processing apparatus 1 of the second embodiment. In the fifth configuration example, the biometric information processing apparatus 1 includes two speakers 144-1 and 144-2. In the two speakers 144-1 and 144-2, the phase of the output voice is adjusted by the control unit 152. By adjusting the phase in this way, the biometric information processing apparatus 1 vibrates differently depending on the combination of the phases of each speaker 144. The control unit 152 causes each speaker 144 to output a sound wave having a phase corresponding to the support information by changing the phase combination according to the support information. By outputting the voice adjusted in this way by each speaker 144, the biometric information processing apparatus 1 controls the directivity and volume of the voice propagating to the outside of the housing portion 11 (hereinafter referred to as “radiated sound”). can do. Specifically, the speakers 144-1 and 144-2 are installed on the inner surface of the housing portion 11 that supports each functional portion, and the radiated sound is amplified or attenuated by the baffle effect inside the housing portion 11. ..

FIG. 26 is a diagram showing how sound waves output by a plurality of sound sources arranged in an open space interfere with each other and are attenuated. FIG. 26A shows the positional relationship of each sound source when two sound sources AS11 and AS12 are arranged in an open space. In this example, the sound source AS11 indicates the main sound source, and AS12 indicates the sub-sound source. Here, the main sound source means a sound wave that outputs a sound wave to be attenuated, and the sub sound source means a sound source that interferes with the sound wave emitted by the main sound source and emits a sound wave to be attenuated. d represents the distance between the main sound source AS11 and the sub sound source AS12. Similarly, FIG. 26B shows the positional relationship of each sound source when three sound sources AS21, AS22 and AS23 are arranged in an open space. In this example, the sound source AS21 indicates the main sound source, and the sound sources AS22 and AS23 indicate the sub-sound source. d represents the distance between the main sound source AS21 and the sub-sound sources AS22 and AS23, and L represents the distance between the sub-sound sources AS22 and AS23.

In FIG. 26 (C), the sound wave output by the main sound source shown in FIGS. 26 (A) and 26 (B) (hereinafter referred to as “main sound wave”) is the sound wave output by the sub sound source (hereinafter referred to as “secondary sound wave”). It is a figure which shows the state which interferes with) and attenuates. Here, the horizontal axis represents the phase difference between the main sound wave and the secondary sound wave, and the vertical axis represents the attenuation amount η of the main sound wave due to the interference of the secondary sound wave. In FIG. 26C, the curve L1 represents the attenuation amount η1 of the main sound source AS11 shown in FIG. 26A, and the curve L2 represents the attenuation amount η2 of the main sound source AS21 shown in FIG. 26B. The attenuation amounts η1 and η2 are expressed by the following equations (12) and (13), respectively.

Here, θ _k = kd, where θ _k represents the phase difference between the main sound wave and the sub sound wave. When L = 2d, 2θ _k = kL, and 2θ _k represents the phase difference between the subsonic waves. Equations (12) and (13) represent the relative attenuation of the sound pressure after control with respect to the sound pressure before control. That is, in the example of FIG. 26C, at 0 dB, the sound pressure of the main sound wave does not change before and after the control, and at −10 dB, the sound pressure of the main sound wave decreases by 10 dB after the control. As shown in FIG. 26 (C), it can be seen that the amount of attenuation of the main sound wave becomes smaller as the number of sub-sound sources increases. Therefore, in order to reduce the attenuation of the radiated sound, it is desirable that the biometric information processing apparatus 1 is provided with more speakers 144.

The amplification or attenuation of the radiated sound can also be realized by generating Helmholtz resonance inside the housing portion 11. In this case, the vibrator 143 is installed inside the housing portion 11 instead of the speaker 144, and the cylindrical tube is installed inward of the housing portion 11. By doing so, the radiated sound generated inside the housing portion 11 by the vibrator 143 is amplified by Helmholtz resonance in the cylindrical tube.

As described above, the biometric information processing apparatus 1 can transmit respiratory information to the surroundings by vibration or sound, but the biometric information processing apparatus 1 may be further equipped with a microphone as an acoustic sensor. In this case, for example, vibration and sound can be effectively transmitted by adjusting the output balance of the amplifier 162 based on the sound pressure information measured by the control unit 152 via the microphone.

For example, when the vibrator 143 vibrates at the maximum amplitude, it is conceivable that the sound output from the speaker 144 is hindered by the vibration of the vibrator 143 and a desired volume cannot be secured. In particular, there is a limit to the feasible sound band between the radiated sound by the vibrator 143 and the radiated sound by the speaker 144 depending on the constituent members and the size of the housing portion 11. Therefore, if the amplitude of the vibrator 143 is excessively increased without considering such voice inhibition, the distortion of the housing portion 11 increases, the sound quality deteriorates, and other precision parts such as the breathing sensor 20 are affected. Excessive vibration may occur and the equipment may be damaged. Therefore, by adjusting the output balance of the amplifier 162 based on the sound pressure actually generated, deterioration of sound quality and damage to the device can be suppressed. Specifically, when the desired volume is not obtained, the control unit 152 can secure the desired volume by suppressing the output level of the oscillator 143 and increasing the output level of the speaker 144. can.

The microphone used for adjusting the output balance may be used as a means for sharing information among a plurality of biometric information processing devices 1. For example, the control unit 152 can acquire the support information of the other biometric information processing device 1 by inputting the audio output from the other biometric information processing apparatus 1 from the microphone and analyzing the acquired audio signal. can. Further, if the other bio-information processing device 1 outputs a voice indicating its own state, the control unit 152 can also monitor the state of the other bio-information processing device 1 by analyzing the voice signal. Therefore, the biometric information processing apparatus 1 provided with this function can further finely support activities in which a plurality of users share emotions and foster a sense of unity without having to provide wireless communication means. Further, the breath sounds of the user may be collected by the sound collecting microphone. The sound source collected by the sound collecting microphone may be analyzed to detect whether the user is inhaling or exhaling.

Further, the biometric information processing apparatus 1 analyzes the ambient environmental sound acquired by the microphone built in the housing portion 11, and when the ambient noise is large, increases the output of the vibrator 143 and vibrates the user's biometric information. It may be easy to recognize. In this case, for example, an acoustic signal analysis unit, a threshold value determination unit, a signal processing unit, a signal amplification unit, or the like may be connected to the microphone to adjust the vibration amount of the vibrator 143.

When the vibration of the vibrator 143 is increased, an unnecessary sound is usually likely to be generated as the vibration increases, but since it is masked by the noise, the vibration can be amplified without worrying about the unnecessary sound. In addition, since the volume and vibration level differ depending on the usage environment, it is possible to amplify the vibration without worrying about unnecessary sounds by setting the threshold value in advance.

Further, the biometric information processing apparatus 1 outputs a voice for measurement such as white noise (hereinafter referred to as “measurement sound”) from the speaker 144, and acquires the voice signal via the microphone to obtain the voice signal, thereby the housing portion 11. It is possible to acquire the internal acoustic characteristics of. By acquiring such acoustic characteristics, the control unit 152 is in a state where the breathing sensor 20 can correctly observe the movement of the user's abdomen based on the difference in frequency characteristics, time characteristics (impulse response), and the like. Can be indirectly detected. In particular, in the measurement of such acoustic characteristics, since the ambient noise and the measured sound are uncorrelated, the surrounding environment (background noise, human voice, mechanical sound, oscillator 143 by the biometric information processing device 1 and the like. The acoustic characteristics can be evaluated without being affected by the radiation sound from the speaker 144, the operating sound, and the like.

[Sixth configuration example]
FIG. 27 is a diagram showing a sixth configuration example of the biometric information processing apparatus 1 of the second embodiment. In the sixth configuration example, the biometric information processing apparatus 1 includes two speakers 144-1 and 144-2. The two speakers 144-1 and 144-2 output voices that make the user perceive a virtual sound image under the control of the control unit 152. Specifically, the control unit 152 performs signal processing on the voice data to be output by using an HRTF (Head-Related Transfer Function) from the user's ear to the speaker 144 to obtain biometric information. Only the user of the processing device 1 generates an audio signal around the head so as to perceive a virtual sound image and outputs it to the speaker 144.

FIG. 28 is a diagram showing how the biometric information processing apparatus 1 of the sixth configuration example generates a virtual sound image around the user. FIG. 28A shows a state in which the user's head is in a position where the virtual sound image can be perceived, and FIG. 28B shows a state in which the user's head is in a position where the virtual sound image is not perceived. The user perceives the virtual sound image only at the position of FIG. 28 (A) where the virtual sound image can be perceived (hereinafter referred to as “perceptible position”), and deviates from the perceptible position as shown in FIG. 28 (B). The virtual sound image is not perceived at the position. By utilizing such a property of the virtual sound image, the biometric information processing apparatus 1 can teach the user the correct posture. According to the biometric information processing apparatus 1 having such a function, for example, a user who performs zazen as a means of mindfulness should be aware of maintaining a posture in which the virtual sound image formed by the biometric information processing apparatus 1 can be perceived. So, you can learn correct zazen efficiently.

The voice provided to the user by the virtual sound image may be changed according to the measurement result of the user's abdominal breathing and the practice result so far. For example, in the initial state, a sound prompting correct posture and abdominal breathing is played, but the sound may be gradually changed to a comfortable sound. Pleasant sounds are sounds in the natural world, such as BGM for healing music, chirping of birds, and murmuring of rivers. Alternatively, the voice recorded at the actual Buddhist temple may be played in order to make the person feel as if he / she is actually meditation at the Buddhist temple. In addition to the pleasant sound, the music or BGM specified by the user may be played. Further, the odor may be changed together with or in place of the virtual sound image, or content such as a video may be distributed. Further, the volume, rhythm, type of music, and the like may be changed depending on the degree of matching between the user and the virtual sound image.

[7th configuration example]
FIG. 29 is a diagram showing a biometric information processing apparatus of the seventh configuration example. FIG. 29A shows a state in which the biometric information processing apparatus 1 is viewed from above. FIG. 29B shows the usage state of the biometric information processing apparatus 1. FIG. 29C shows another usage state of the biometric information processing apparatus 1. As shown in FIG. 29 (A), the biometric information processing apparatus 1 includes a housing portion 11. The housing portion 11 in this example has a cylindrical shape. The biometric information processing device 1 in this example is a small and portable stick-type device.

A respiration sensor 20 is provided inside the housing portion 11. Pulse wave sensors 132-1 and 132-2 are provided on both the left and right sides of the breathing sensor 20, respectively. Push buttons 211-1 and 211-2 are provided on both the left and right sides of the pulse wave sensors 132-1 and 132-2. The push buttons 211-1 and 211-2 are urging members (not shown). For example, it is urged outward by a spring. Further, a power supply unit 212 is connected to the biometric information processing device 1. The power supply unit 212 supplies power to the biometric information processing device 1.

When the push buttons 211-1, 211-2 are pushed inward against the urging force of the spring, the push buttons 211-1, 211-2 come into contact with the pulse wave sensors 132-1 and 132-2, and the pulse wave sensor 132-1 and 132-2 react to start the measurement. Further, when the pulse wave sensors 132-1 and 132-2 start the measurement, the respiration sensor 20 also starts the measurement. The biometric information processing apparatus 1 does not include a light emitting unit 142, an oscillator 143, a speaker 144, and a circuit unit 15 like the biometric information processing apparatus 1 shown in FIG. 1, but includes a part or all of them. But it may be.

The biometric information processing apparatus 1 of this example can be used by pushing the push buttons 211-1, 211-2 inward. Therefore, for example, as shown in FIG. 29 (B), the biometric information processing device 1 can be used by sandwiching the biometric information processing device 1 between the wrists of the right arm and the left arm of a user dressed as zazen. Further, as shown in FIG. 29 (C), the biometric information processing apparatus 1 is used by pushing the biometric information processing apparatus 1 left and right with the user's finger. Therefore, it is possible to facilitate abdominal breathing by finger stimulation. In addition, it is a small and portable stick type, so it is convenient to carry.

[Eighth configuration example]
FIG. 30 is a diagram showing a biometric information processing apparatus of the eighth configuration example. In this example, the biometric information processing device 1 is held by the cover member 230. FIG. 30A shows the biometric information processing apparatus 1 before the cover member 230 is held. FIG. 30B shows the biometric information processing apparatus 1 after the cover member 230 is held. As shown in FIG. 30 (A), the cover main body 231 which is one size larger than the housing portion 11 of the biometric information processing apparatus 1 is provided. The cover body 231 has a shape that covers the housing portion 11 in a state where the display portion 141 attached to the housing portion 11 is exposed.

Sharp protrusions 232 are arranged around the cover main body 231 at substantially equal intervals in all directions of the peripheral surface. The protrusion 232 stimulates the pressed portion of the human body by being pressed against the human body, for example, a finger or the like. The cover main body 231 and the protrusion 232 may be integrally molded from a common material, or the protrusion 232 may be adhered or welded to the cover main body 231. Further, the cover main body 231 and the protrusion 232 may be made of different materials. Further, the plurality of protrusions 232 may have the same shape or different shapes. The cover main body 231 and the protrusion 232 may be formed of an elastic body such as rubber, or may be made of a thermoplastic resin or the like. Further, the cover body 231 may have elasticity. Further, the protrusion 232 may have a shape that is not sharp, for example, a hemispherical shape. Further, a recessed portion may be formed in place of the protrusion 232.

A device-side connecting portion 222-1,222-2 is provided at the tip of the housing portion 11 of the biometric information processing apparatus 1. Further, a cover-side connecting portion 233-1,233-2 is provided at the tip end portion of the cover main body 231 of the cover member 230. As shown in FIG. 30B, the device-side connecting portion 222-1,222-2 and the cover-side connecting portion 233-1,233-2 can be connected to each other.

The cover member 230 can be attached to and detached from the biometric information processing apparatus 1 by the user's will or the like. The cover member 230 is held by the biometric information processing apparatus 1 by the device-side connecting portion 222-1,222-2 and the cover-side connecting portion 233-1,233-2. The cover member 230 is fixed to the biometric information processing device 1 by connecting the device-side connecting portion 222-1,222-2 and the cover-side connecting portion 233-1,233-2 to each other.

In the biometric information processing apparatus 1 of this example, by attaching the cover member 230, it is possible to alleviate an external impact or the like and suppress damage or the like. Further, in the cover member 230, the device-side connecting portion 222-1,222-2 and the cover-side connecting portion 233-1,233-2 are connected to each other and held by the biometric information processing apparatus 1. Therefore, the cover member 230 can be securely attached to the biometric information processing apparatus 1. Further, the cover member 230 is provided with a protrusion 232. Therefore, it is possible to give a stimulus to the human body of the user and further alleviate the external impact on the biometric information processing apparatus 1. Further, since the cover member 230 is made of an elastic body or the like, the impact from the outside on the biometric information processing apparatus 1 can be further alleviated.

[9th configuration example]
FIG. 31 is a diagram showing a biometric information processing apparatus of the ninth configuration example. FIG. 31 shows the biometric information processing apparatus 1 in which the cover member 240 is held. As shown in FIG. 31, the biometric information processing apparatus 1 holds the cover member 240. The biometric information processing apparatus 1 is provided with a connecting portion 245. The connecting portion 245 is made connectable to the end portion of the cover member 240.

The cover member 240 includes a cover body 241 that is one size larger than the housing portion 11. The cover body 241 is provided with handles 242-1,242-2 into which the user's hand can be inserted. Handles 242-1,242-2 are through holes. The user can easily hold the biometric information processing apparatus 1 covered with the cover member 240 by inserting his / her hand into the handles 242-1,242-2.

Pulse wave sensors 132-1 and 132-2 are provided inside the housing portion 11 corresponding to the position where the handles 242-1,242-2 are formed. When the user inserts a hand into the handles 242-1,242-2 to hold the biometric information processing apparatus 1, the user's hand is arranged in the vicinity of the pulse wave sensors 132-1 and 131-2. By forming the handles 242-1,242-2, the hand of the user holding the biometric information processing apparatus 1 can be easily guided to the vicinity of the pulse wave sensors 132-1 and 131-2. The handle may be a recess that does not penetrate the housing portion 11.

[10th configuration example]
FIG. 32 is a diagram showing a biometric information processing apparatus 1 of a tenth configuration example. FIG. 32 shows a biometric information processing apparatus 1 surrounded by a peripheral structure. As shown in FIG. 32, the biometric information processing apparatus 1 is housed in a cylindrical holder 251. The holder 251 is self-supporting, and an opening is formed on the upper surface of the holder 251, and the biometric information processing apparatus 1 is inserted into the opening. The biometric information processing device 1 is housed in the holder 251. A combustion member 252 is provided inside the holder 251 and outside the biometric information processing apparatus 1. As the combustion member 252, for example, a candle is used. Further, a fan, a light emitting device, a speaker, and the like (not shown) are housed inside the holder 251. These combustion members 252, fans, light emitting devices, and speakers operate based on the biometric information measured by the biometric information processing device 1.

A small opening 253-1,253-2 having a small diameter is provided on the side of the opening in the holder 251 in which the biometric information processing apparatus 1 is housed. From the small opening 253, the fragrance generated by the combustion of the combustion member 252 and blown by the fan is released. In addition, the sound emitted by the speaker and the light emitted by the light emitting device are emitted. By emitting such fragrance, sound, light and the like to the outside of the holder 251 for visualization and the like, the biometric information processing apparatus 1 can be used for ornamental purposes.

In addition, biometric information being measured using another biometric information processing device 1 is input to the fan, light emitting device, and speaker in this container, and fluctuations in breathing and pulse waves are visualized with light, wind, scent, and sound. You may try to do it. Alternatively, it may be visualized by a fan, a light emitting device, or a speaker in the holder 251 based on the biological information measured in the past by the user.

Further, the biometric information processing apparatus 1 may be provided with a reproduction unit. The reproduction unit has a structure that generates sound, light, odor, and the like based on the biological information acquired by the biological information processing apparatus 1. As the reproduction unit, a light emitting unit 142, an oscillator 143, a speaker 144, or the like may be used. Further, the biometric information processing apparatus 1 may be provided with only a reproduction unit without providing a structure for acquiring biometric information, for example, a breathing sensor 20, a pulse wave sensor 132, or the like.

For the purpose of visualizing the acquisition status of the biometric information of another user by a third party, for example, when the instructor who teaches the breathing method wants to grasp the status of the student, the function of only the visualization or the like is sufficient. If there is a structure for acquiring biological information, in order to realize accurate biological acquisition, it is necessary to have a plurality of connecting portions for holding the breathing sensor 20 and the pulse wave sensor 132 built in the housing portion in the housing portion 11. Therefore, the housing portion 11 is made of a sturdy material, and it becomes difficult to significantly change the vibration of the LED of the light emitting portion 142 and the vibrator 143. As a result, it becomes difficult to accurately grasp the condition of others. Therefore, it may be a so-called biological information visualization device dedicated to reproduction visualization having only a reproduction unit such as a light emitting unit 142, an oscillator 143, and a speaker 144. For example, when the vibrator 143 is vibrated, the amplitude may be amplified and the housing portion 11 itself may be deformed to further exaggerate and reproduce and visualize minute movements. In this case, the housing portion 11 is preferably made of a material having elasticity, deformability, and the like.

[Eleventh configuration example]
FIG. 33 is a diagram showing the biometric information processing apparatus 1 of the eleventh configuration example. FIG. 33 shows a state in which a plurality of biometric information processing devices 1 are mounted on a common plate 260. As shown in FIG. 33, a plurality of biometric information processing devices 1 are mounted on the common plate 260. The common plate 260 is provided with a plurality of mounting holes for mounting the biometric information processing apparatus 1. The biometric information processing apparatus 1 is mounted in each of these mounting holes.

For example, the biometric information processing apparatus 1 is provided with a reproduction unit described in the tenth configuration example. A connector that can be connected is attached to each mounting hole of the common plate 260 and the biometric information processing device 1, and by connecting this connector, the biometric information of the biometric information processing device 1 is output to the common plate 260 side. It is possible. This connector can also be used to charge the biometric information processing device 1, or instead of the connector, a wireless power supply device such as Qi is used, a receiver is provided inside the biometric information processing device 1, and a transmitter is provided on the common plate 260. It can also be charged by providing. The common plate 260 is provided with an information management device (not shown), and the information management device can process biometric information output from a plurality of biometric information processing devices 1. The information management device may be provided separately from the common plate 260. Further, by connecting the connector, it is possible to output an operation signal for operating the light emitting unit 142, the oscillator 143, the speaker 144, and the like from the common plate 260 to each bio information processing device 1.

Further, the common plate 260 is provided with an input / output information data transmission / reception unit and a target data transmission unit. The target data transmission unit includes target data related to biometric information. Further, the information management device is provided with a teacher data correlation discriminating unit. The information management device calculates the target value for each user's biometric information by discriminating the correlation between the biometric information acquired from the biometric information processing device 1 and the target data in the teacher data correlation discriminating unit. The information management device outputs this target value from the input / output information data transmission / reception unit to each biometric information processing device 1.

By mounting a plurality of biometric information processing devices 1 on the common plate 260, a third party can visualize the acquisition state of biometric information of another user. By mounting a plurality of biometric information processing devices 1 on the common plate 260, for example, an instructor who teaches a breathing method can simultaneously visualize biometric information acquired by a plurality of people. The larger the number of people, the harder it is to instantly grasp the movements of each person. In this respect, simply by mounting a plurality of biometric information processing devices 1 on the common plate 260, it is possible to identify a user who has not been able to perform normally from the difference in the color of the LED of the light emitting unit 142 by time synchronization and simultaneous reproduction. Alternatively, the teacher data is simultaneously transmitted to the information storage unit of each biometric information processing device via the common plate 260, and each user takes out the device from this plate and refers to the teacher data based on this information. It is also possible to carry out breathing training while doing so.

Further, instead of the above-mentioned common plate 260, the decorative stand 270 shown in FIG. 34 may be used. The decorative stand 270 is provided with an information management device provided on the common plate 260. Further, the decorative stand 270 is provided with a plurality of mounting portions for mounting the biometric information processing device 1, and these mounting portions have a holder portion for holding the biometric information processing device 1 and a connector similar to the common plate 260. It is provided. By using this decorative stand 270, the same effect as when the common plate 260 is used can be obtained, and the decorativeness can be improved.

[Other configuration examples]
Further, the biometric information processing apparatus 1 may have a structure that is easy for the user to use while lying down. In this case, for example, a user who has mastered the use of the biometric information processing apparatus 1 in the zazen state can use the biometric information processing apparatus 1 while lying down before going to bed. Further, the biometric information processing apparatus 1 may be provided with a timer function. In the timer function, for example, the operation start time of the light emitting unit 142, the vibrator 143, the speaker 144, etc. is set, and after the operation start time elapses, strong light or strong light is emitted from the light emitting unit 142, the vibrator 143, and the speaker 144. It may vibrate or make a sound. These lights, vibrations, and sounds can prevent the user from going to bed. Further, the structure may be such that the light of the light emitting unit 142 can be prevented from leaking from the side surface of the housing portion 11 by lying down the biometric information processing device 1. In this case, it is possible to prevent the sleeping user from being exposed to the light emitted by the light emitting unit 142.

Further, a light transmitting portion may be provided on the side surface of the housing portion 11 of the biometric information processing apparatus 1 so that the light transmitted through the light transmitting portion is projected on the ceiling, the wall, or the like. For example, the lying user may hold the biometric information processing apparatus 1 sideways so that the light transmitted through the light transmitting portion is projected on the ceiling. In this case, for example, the orientation of the biometric information processing apparatus 1 may be detected by a gyro sensor or the like, and the light emitting unit 142 may irradiate a predetermined light when the light transmitting unit is arranged above. In this way, the light emitting unit 142 may irradiate light based on the posture of the biometric information processing device 1.

Further, the reproduction signal corresponding to the biological information stored in the biometric information processing apparatus 1 may be output to the oscillator 143 and reproduced by the oscillator 143. In this case, the user's own breathing pattern can be confirmed from the shaking state of the housing portion 11. Further, by devising the arrangement of the vibrator 143 and the holding mechanism thereof, the movement of the vibration can be deformed.

Further, a solar panel may be provided together with or in place of the display unit 141. Further, at least one of the display unit 141, the solar panel, and the housing unit 11 may have a drip-proof and waterproof function. With these configurations, when the biometric information processing apparatus 1 is used, for example, on the beach, it can be charged and deterioration due to seawater can be suppressed. Further, the biometric information processing apparatus 1 may be provided with a high temperature and direct sunlight avoidance function, or may be provided with an ultraviolet ray avoidance function.

Further, the biometric information processing device 1 may be used in a yoga studio, a sports gym, or the like. In this case, the biometric information processing apparatus 1 may be used by, for example, an instructor or a student. Further, when using the biometric information processing device 1 in a yoga studio, a sports gym, or the like, the user may carry and use the biometric information processing device 1, or place the biometric information processing device 1 in the vicinity of or away from the user. You may use it. Further, when a plurality of students use the biometric information processing apparatus 1, a large number of biometric information processing apparatus 1 may be used side by side. When a plurality of bio-information processing devices 1 are used, for example, a bio-information processing system or the like may be configured by using a plurality of bio-information processing devices 1 and a common plate on which they are mounted. In the biometric information processing system, a control unit or the like that performs calculations on data obtained from a plurality of biometric information processing devices 1 is provided, and various biometric information processing and biometric information processing according to the data obtained from each biometric information processing device 1 are performed. You may try to teach based on the obtained results.

According to at least one embodiment described above, the breathing sensor 20 that acquires the breathing information indicating the user's breathing state, the analysis unit 151 that generates the support information that supports the user's activity based on the breathing information, and the control. By having a unit 152 (an example of a respiratory information processing unit), a display unit 141 that outputs respiratory information or support information, a light emitting unit 142, an oscillator 143, or a speaker 144, it is possible to support the mindfulness of the user. .. Here, the display unit 141, the light emitting unit 142, the oscillator 143, or the speaker 144 is an example of an output unit that outputs respiratory information or support information in a predetermined mode according to the respiratory information or support information.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

The inventions described in the claims at the time of filing the patent application of the original application of the present application are described below.
[1]
A signal generator that generates a signal of a predetermined frequency,
A probe through which a signal generated from the signal generator passes is provided.
Detecting a phase shift of a signal generated from the signal generator before and after passing through a circuit containing the probe.
Respiratory sensor.
[2]
The probe is at least one of an inductor and a capacitor.
The breathing sensor according to [1].
[3]
The probe is an inductor and
The inductor is formed by winding an electric wire having a coil length of 10 cm or more and 20 m or less in a substantially cylindrical shape.
[2] Respiratory sensor.
[4]
The probe is a capacitor
The capacitor is formed of electrodes having an area of 3 cm × 3 cm or more.
The breathing sensor according to [2].
[5]
The signal generator generates a signal having a frequency of 500 kHz or more and 20 MHz or less.
The breathing sensor according to any one of [1] to [4].
[6]
In the signal generator, the signal generated from the signal generator in the sucking state of the user closest to the body of the user and the discharging state of the user farthest from the body causes the probe. Generates a signal of a predetermined frequency determined based on the phase shift before and after passing through the including circuit.
The breathing sensor according to any one of [1] to [5].
[7]
The breathing sensor according to any one of [1] to [6] and
A control unit that generates breathing information of the user based on the phase shift detected by the breathing sensor is provided.
The control unit
An offset removing unit for generating an offset removing signal from which unnecessary components are removed from the respective phases before and after passing through the circuit including the probe of the signal generated from the signal generator is provided.
Respiratory detector.
[8] The offset removing unit includes an instrumentation amplifier that inputs a signal generated from the signal generator and an offset adjusting signal and outputs an offset removing signal.
The breathing detection device according to [7].
[9]
The instrumentation amplifier has a gain adjustment resistor that amplifies the signal.
The gain adjusting resistor is a variable resistor.
The breathing detection device according to [8].
[10]
The offset removing unit includes a subtraction circuit that subtracts an offset adjustment signal from a signal generated from the signal generator.
The breathing detection device according to [8].
[11]
The subtraction circuit includes an operational amplifier and a resistor connected to the output side of the operational amplifier.
The resistor is a variable resistor.
The breathing detection device according to [10].
[12]
The control unit has a phase shift before and after the probe passes through the circuit including the probe of the signal generated from the signal generator in the suction state of the user closest to the user's body, and the body. The phase shift of the signal generated from the signal generator before and after passing through the circuit including the probe in the discharge state of the user farthest from the signal generator. Normalize before and after passing through the circuit containing the probe.
The breathing detection device according to any one of [7] to [11].
[13]
As the normalization, an amplification unit that amplifies a signal that has passed through a circuit including the probe is provided.
The breathing detection device according to [12].
[14]
The amplification unit includes a circuit using a resistor and a diode together.
The breathing detection device according to [13].
[15]
The amplification unit includes a field effect transistor.
The breathing detection device according to [13].
[16]
An A / D converter that converts the signal generated from the signal generator and the signal that has passed through the circuit including the probe into digital data, respectively.
A specific unit for specifying the phase shift based on the digital data converted by the A / D conversion unit is provided.
The breathing detection device according to any one of [7] to [15].
[17]
The control unit obtains an abnormal value of the respiratory state of the user based on the history of the respiratory state of the user, and removes the abnormal value.
The breathing detection device according to any one of [7] to [16].
[18]
The control unit obtains the median value of the user's respiratory state based on the history of the user's respiratory state, and when the difference between the user's respiratory state and the median is equal to or greater than a predetermined threshold value. In addition, it is obtained as an abnormal value of the respiratory state of the user.
The breathing detection device according to [17].
[19]
The breathing detection device according to any one of [7] to [18], and
A respiratory information processing unit that generates support information that supports the activity of the user based on the respiratory information, and a respiratory information processing unit.
An output unit that outputs the support information in a predetermined mode according to the support information,
A biometric information processing device.
[20]
Further, a pulse wave sensor for acquiring pulse wave information indicating the state of the user's pulse wave is provided.
The respiratory information processing unit analyzes the state of the autonomic nerve of the user based on the respiratory information or the pulse wave information, and generates information indicating the analysis result as the support information.
The biometric information processing apparatus according to [19].
[21]
The output unit includes a Pelche element.
The Pelche element generates heat transfer according to the breathing state of the user by inputting a control signal corresponding to the breathing information.
The biometric information processing apparatus according to [19] or [20].
[22]
The output unit includes an fragrance element.
The fragrance element emits fragrance according to the breathing state of the user by inputting a control signal corresponding to the breathing information.
The biometric information processing apparatus according to [21].
[23]
The output unit includes a vibrator that vibrates by applying electric power and a speaker that outputs sound.
The oscillator vibrates in a pattern corresponding to the breathing state of the user by inputting a control signal corresponding to the breathing information.
The speaker outputs a voice corresponding to the breathing information.
The biometric information processing apparatus according to any one of [19] to [22].
[24]
The housing portion of the biometric information processing apparatus includes a first member that holds the breathing sensor and a second member that holds other than the breathing sensor.
The first member has a material having a vibration damping rate larger than a predetermined reference value.
The second member has a material having a vibration damping rate smaller than a predetermined reference value.
The biometric information processing apparatus according to [23].
[25]
The housing portion of the biometric information processing apparatus is composed of a member having a surface density that makes the transmission loss of the sound output by the speaker equal to or less than a predetermined threshold value.
The biometric information processing apparatus according to [23] or [24].
[26]
The respiratory information processing unit adjusts the amplitude or phase of the electrical signal of the respiratory information input to the vibrator or the speaker according to the value of the electrical signal.
The biometric information processing apparatus according to any one of [23] to [25].
[27]
The output unit includes a first oscillator and a second oscillator that vibrate due to the application of electric power.
The respiratory information processing unit adjusts the phase of the electric signal of the respiratory information input to the first vibrator and the second vibrator according to the value of the electric signal.
The biometric information processing apparatus according to any one of [23] to [25].
[28]
The output unit includes a plurality of speakers that output audio.
The respiratory information processing unit controls the directivity and volume of the voice propagating to the outside of the own device by adjusting the voice output conditions of each of the plurality of speakers.
The biometric information processing apparatus according to any one of [19] to [22].
[29]
The output unit includes a plurality of speakers that output audio.
The respiratory information processing unit adjusts the audio output conditions of each of the plurality of speakers to generate a virtual sound image that the user of the own device can perceive at a predetermined position.
The biometric information processing apparatus according to any one of [19] to [22].
[30]
Steps to acquire respiratory information indicating the user's respiratory status,
A step of generating support information for supporting the activity of the user based on the breathing information, a step of outputting the support information in a predetermined mode according to the support information, and a step of outputting the support information.
Biometric information processing method.
[31]
Steps to acquire respiratory information indicating the user's respiratory status,
A step of generating support information for supporting the activity of the user based on the breathing information, a step of outputting the support information in a predetermined mode according to the support information, and a step of outputting the support information.
A computer program that lets your computer run.
[32]
A breathing detection device that measures the fluctuation of the distance between the user's abdomen and itself and acquires the information indicating the fluctuation as the breathing information indicating the breathing state of the user.
A respiratory information processing unit that generates support information that supports activities related to the user's mindfulness based on the respiratory information, and a respiratory information processing unit.
An output unit that outputs the support information in a predetermined mode according to the support information,
A housing portion that is a member constituting the housing of the own device and has a holding portion or a display for causing the user to hold the own device in a predetermined orientation.
Equipped with
The housing portion holds the breathing sensor at a position where the breathing sensor in the breathing detection device faces the user's abdomen when the user holds the device in the predetermined orientation.
Mindfulness support device.

1 ... Biometric information processing device, 11 ... Housing unit, 20 ... Respiratory sensor, 111 ... First member, 112 ... Second member, 12 ... Power supply unit, 132, 132-1, 132-2 ... Pulse wave sensor, 14 ... Output unit, 141 ... Display unit, 142 ... Light emitting unit, 143, 143-1,143-2 ... Oscillator, 144 ... Speaker, 15 ... Circuit unit, 151 ... Analysis unit, 152 ... Control unit, 161 ... Communication Unit, 162 ... Amplifier, 163 ... Address converter

Claims (30)

A signal generator that generates a signal with a frequency of 500 kHz or more and 20 MHz or less,
A probe through which a signal generated from the signal generator passes is provided.
The probe is a capacitor
A change in the capacitance of the capacitor is detected by detecting a phase shift of the signal generated from the signal generator before and after passing through the circuit including the capacitor.
Respiratory sensor. The capacitor is formed of electrodes having an area of ^{9 cm 2 or more.}
The respiration sensor according to claim 1. The signal generator includes the probe as a signal generated from the signal generator in the sucking state of the user closest to the body of the user and the discharging state of the user farthest from the body. Generates a signal of a predetermined frequency determined based on the phase shift before and after passing through the circuit.
The respiration sensor according to claim 1 or 2. The breathing sensor according to any one of claims 1 to 3.
A control unit that generates breathing information of the user based on the change in capacitance detected by the breathing sensor.
Respiratory detector. The control unit
An offset removing unit for generating an offset removing signal from which unnecessary components are removed from the respective phases before and after passing through the circuit including the probe of the signal generated from the signal generator is provided.
The breathing detection device according to claim 4. The offset removing unit includes an instrumentation amplifier that inputs a signal generated from the signal generator and an offset adjusting signal and outputs an offset removing signal.
The respiration detection device according to claim 5. The instrumentation amplifier has a gain adjustment resistor that amplifies the signal.
The gain adjusting resistor is a variable resistor.
The breathing detection device according to claim 6. The offset removing unit includes a subtraction circuit that subtracts an offset adjustment signal from a signal generated from the signal generator.
The breathing detection device according to claim 6. The subtraction circuit includes an operational amplifier and a resistor connected to the output side of the operational amplifier.
The resistor is a variable resistor.
The respiration detection device according to claim 8. The control unit has a phase shift before and after the probe passes through the circuit including the probe of the signal generated from the signal generator in the suction state of the user closest to the user's body, and the body. The phase shift of the signal generated from the signal generator before and after passing through the circuit including the probe in the discharge state of the user farthest from the signal generator. Normalize before and after passing through the circuit containing the probe.
The breathing detection device according to any one of claims 5 to 9. As the normalization, an amplification unit that amplifies a signal that has passed through a circuit including the probe is provided.
The breathing detection device according to claim 10. The amplification unit includes a circuit using a resistor and a diode together.
The respiration detection device according to claim 11. The amplification unit includes a field effect transistor.
The respiration detection device according to claim 11. An A / D converter that converts the signal generated from the signal generator and the signal that has passed through the circuit including the probe into digital data, respectively.
A specific unit for specifying the phase shift based on the digital data converted by the A / D conversion unit is provided.
The breathing detection device according to any one of claims 5 to 13. The control unit obtains an abnormal value of the respiratory state of the user based on the history of the respiratory state of the user, and removes the abnormal value.
The breathing detection device according to any one of claims 5 to 14. The control unit obtains the median value of the user's respiratory state based on the history of the user's respiratory state, and when the difference between the user's respiratory state and the median is equal to or greater than a predetermined threshold value. In addition, it is obtained as an abnormal value of the respiratory state of the user.
The respiration detection device according to claim 15. The breathing detection device according to any one of claims 5 to 16.
A respiratory information processing unit that generates support information that supports the activity of the user based on the respiratory information, and a respiratory information processing unit.
An output unit that outputs the support information in a predetermined mode according to the support information,
A biometric information processing device. Further, a pulse wave sensor for acquiring pulse wave information indicating the state of the user's pulse wave is provided.
The respiratory information processing unit analyzes the state of the autonomic nerve of the user based on the respiratory information or the pulse wave information, and generates information indicating the analysis result as the support information.
The biometric information processing apparatus according to claim 17. The output unit includes a Pelche element.
The Pelche element generates heat transfer according to the breathing state of the user by inputting a control signal corresponding to the breathing information.
The biometric information processing apparatus according to claim 17 or 18. The output unit includes an fragrance element.
The fragrance element emits fragrance according to the breathing state of the user by inputting a control signal corresponding to the breathing information.
The biometric information processing apparatus according to claim 19. The output unit includes a vibrator that vibrates by applying electric power and a speaker that outputs sound.
The oscillator vibrates in a pattern corresponding to the breathing state of the user by inputting a control signal corresponding to the breathing information.
The speaker outputs a voice corresponding to the breathing information.
The biometric information processing apparatus according to any one of claims 17 to 20. The housing portion of the biometric information processing apparatus includes a first member that holds the breathing sensor and a second member that holds other than the breathing sensor.
The first member has a material having a vibration damping rate larger than a predetermined reference value.
The second member has a material having a vibration damping rate smaller than a predetermined reference value.
The biometric information processing apparatus according to claim 21. The housing portion of the biometric information processing apparatus is composed of a member having a surface density that makes the transmission loss of the sound output by the speaker equal to or less than a predetermined threshold value.
The biometric information processing apparatus according to claim 21 or 22. The respiratory information processing unit adjusts the amplitude or phase of the electrical signal of the respiratory information input to the vibrator or the speaker according to the value of the electrical signal.
The biometric information processing apparatus according to any one of claims 21 to 23. The output unit includes a first oscillator and a second oscillator that vibrate due to the application of electric power.
The respiratory information processing unit adjusts the phase of the electric signal of the respiratory information input to the first vibrator and the second vibrator according to the value of the electric signal.
The biometric information processing apparatus according to any one of claims 21 to 23. The output unit includes a plurality of speakers that output audio.
The respiratory information processing unit controls the directivity and volume of the voice propagating to the outside of the own device by adjusting the voice output conditions of each of the plurality of speakers.
The biometric information processing apparatus according to any one of claims 17 to 20. The output unit includes a plurality of speakers that output audio.
The respiratory information processing unit adjusts the audio output conditions of each of the plurality of speakers to generate a virtual sound image that the user of the own device can perceive at a predetermined position.
The biometric information processing apparatus according to any one of claims 17 to 20. The biometric information processing apparatus according to claim 17
Steps to acquire respiratory information indicating the user's respiratory status,
A step of generating support information for supporting the activity of the user based on the breathing information, a step of outputting the support information in a predetermined mode according to the support information, and a step of outputting the support information.
Biometric information processing method. Steps to acquire respiratory information indicating the user's respiratory status,
A step of generating support information for supporting the activity of the user based on the breathing information, a step of outputting the support information in a predetermined mode according to the support information, and a step of outputting the support information.
17 is a computer program for causing the biometric information processing apparatus according to claim 17 to execute. The breathing detection device according to claim 4, wherein the change in the distance between the user's abdomen and himself / herself is measured, and the information indicating the change is acquired as the breathing information indicating the breathing state of the user.
A respiratory information processing unit that generates support information that supports activities related to the user's mindfulness based on the respiratory information, and a respiratory information processing unit.
An output unit that outputs the support information in a predetermined mode according to the support information,
A housing portion that is a member constituting the housing of the own device and has a holding portion or a display for causing the user to hold the own device in a predetermined orientation.
Equipped with
The housing portion holds the breathing sensor at a position where the breathing sensor in the breathing detection device faces the user's abdomen when the user holds the device in the predetermined orientation.
Mindfulness support device.

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