JP2017144201A - Transition device of human body state - Google Patents

Abstract

PROBLEM TO BE SOLVED: To favorably improve a human body state such as smoothly introducing a subject into a sleep and optimizing the number of blinks by applying a proper stimulation to the subject.SOLUTION: The human body state transition device includes: a sensor part 3 for detecting pulsation of a subject 2 and converting it into an electric signal; and an analysis/control part 5 for analyzing the electric signal from the sensor part 3 and controlling a volume output from a speaker 4 and the length of a stop period thereof. In a period of listening sound, the subject 2 in a relax state focuses attention on the sound to eliminate distraction as an obstacle of the sleep and, when the distraction disappears and the sound disappears, the subject is drawn into a sleep. The analysis/control part 5 controls the volume to decrease and controls the length of the stop period on the basis of a period of the pulsation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a human body state transition device for preventing a dry eye by prompting a user to fall asleep or inducing blinking at an appropriate frequency.

  There has been known a sleep introduction device that intermittently applies a stimulus such as sound or light to a person who has difficulty falling asleep and introduces it into sleep (for example, see Patent Document 1). In addition, a system is known that allows a subject to listen to music for relaxing through a speaker and changes the music playback speed in accordance with the physiological state of the subject (see, for example, Patent Document 2).

Japanese Patent Laid-Open No. 2003-210587 JP 2008-525055 A

  However, in the sleep introduction device of Patent Document 1, the subject has a switch such as a joystick, and must operate the switch as soon as possible when he / she feels a stimulus, and there is a psychological burden for that purpose. It seems that falling asleep is not obtained.

  Further, in the system of Patent Document 2, since the subject continues to receive music stimulation without interruption, it is considered that there is no silent state as a trigger for shifting to the sleeping state, and similarly smooth sleep cannot be obtained.

  Furthermore, it is known that the number of blinks will decrease and dry eyes will occur if the overtension state continues, but the decrease in the number of blinks will occur unconsciously, so that the number of blinks will not be a psychological burden on the subject However, there was no system that would increase this to prevent dry eyes.

  Therefore, the present invention solves the above-described problem, and can bring a human body state in a favorable direction, such as smooth sleep falling on the subject with appropriate stimulation and appropriate number of blinks. An object of the present invention is to provide a human body state transition device capable of performing the above.

  In order to achieve the above object, the invention of claim 1 includes a signal conversion unit that detects a motion of a predetermined part of the human body and converts it into an electrical signal, an analysis unit that analyzes the electrical signal from the signal conversion unit, A stimulus applying unit that gives a stimulus to a human body, and a control unit that changes the amount and / or frequency of the stimulus output from the stimulus applying unit based on the analysis result of the analyzing unit. It is a human body state transition device.

  According to a second aspect of the present invention, in the human body state transition device according to the first aspect, the signal conversion unit converts a pulsation of a human body into an electrical signal, the stimulus applying unit outputs a sound stimulus, and the control unit Is characterized in that the amount and / or frequency of the sound stimulus output from the stimulus applying unit is changed to induce the sleep state.

  According to a third aspect of the present invention, in the human body state transition device according to the second aspect, the sound stimulus output by the stimulus applying unit is a sound having 1 / f fluctuation characteristics.

  According to a fourth aspect of the present invention, in the human body state transition device according to the third aspect, the sound stimulus output by the stimulus applying unit has a silent period.

  According to a fifth aspect of the present invention, in the human body state transition device according to any one of the second to fourth aspects, the control unit has an analysis result of the analysis unit that shortens a cycle of pulsation of the human body. The amount of the stimulus output from the stimulus applying unit is reduced and / or the frequency is reduced.

  According to a sixth aspect of the present invention, in the human body state transition device according to the first aspect, the signal conversion unit converts a blink of the human body into an electrical signal, the stimulus applying unit outputs a sound stimulus, and the control unit is The amount and / or frequency of sound stimulation output from the stimulus applying unit is changed to induce blinking at an appropriate frequency to prevent dry eye.

  According to a seventh aspect of the present invention, in the human body state transition device according to the sixth aspect, when the control unit indicates that the analysis result of the analysis unit indicates that the blinking frequency of the human body has decreased, the stimulus applying unit It is characterized by increasing the amount of stimulation to be output and / or increasing the frequency.

  The invention according to claim 8 is the human body state transition device according to claim 7, wherein the control unit is configured to provide the stimulus applying unit when the analysis result of the analysis unit indicates that the frequency of blinking of the human body is appropriate. Is characterized in that the amount of stimulation output from the device is reduced and / or the frequency is reduced.

  ADVANTAGE OF THE INVENTION According to this invention, a suitable stimulus is added with respect to a test subject, and the state of a human body, such as smooth sleep falling and the number of blinks being optimized, can be brought in a favorable direction.

The block diagram of the sleep introduction apparatus as a human body state transition apparatus which concerns on Example 1 of this invention. The operation | movement flowchart of the sleep introduction apparatus. The figure which shows the change of the pulsation detected in the sleep introduction apparatus, and the change of the sound to output. The external view of the dry eye prevention apparatus as a human body state transition apparatus which concerns on Example 2 of this invention. The block diagram of the dry eye prevention apparatus. The operation | movement flowchart of the dry eye prevention apparatus.

  Hereinafter, a sleep introducing device as a human body state transition device according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. As shown in FIG. 1, the sleep introducing device 1 is fixed near the chest of a subject (human body) 2, a sensor unit 3 that converts a heart beat into an electrical signal, and transmits the electrical signal transmitted from the sensor unit 3. An analysis / control unit 5 that analyzes the signal and changes the volume of the speaker 4 that emits sound toward the subject (human body) 2 based on the analysis result, and the analysis / control unit 5 connected via the network 6 to the analysis A management device 7 that manages data obtained by the control unit 5 is provided.

  The sensor unit 3 includes an amplifier 31 that amplifies an electrical signal from a pad (not shown) in close contact with the chest of the human body, an AD conversion signal detection unit 32 that performs AD conversion on the signal from the amplifier 31, and an AD conversion signal detection unit. And a wireless unit 33 that wirelessly transmits a digital signal from 32.

  The analysis / control unit 5 extracts a specific signal from the detected signal, a wireless unit 51 that receives radio waves from the wireless unit 33, a signal detection unit 52 that detects a heart beat signal from the received signal data, and A specific signal extraction unit 53, a control unit 54 that drives the speaker 4 based on the extracted specific signal, and a network connection unit 55 are provided.

  The control unit 54 controls the speaker 4 so as to emit a comfortable sound such as a wave sound having a 1 / f fluctuation characteristic, a raindrop sound, and the volume and sound level based on the signal from the specific signal extraction unit 53. The stop time (silent period) can be freely controlled. Further, the data of the pulsation signal detected by the signal detection unit 52 is sent to the management device 7 for management and recording.

  Next, the operation will be described based on the flowchart of FIG. When the sleep introduction operation is started, the pulsation signal detected by the signal detection unit 52 is started to be recorded by the management device 7 or the like (S1), and the control unit 54 generates a pleasant sound from the speaker 4 (S2). Lying subject 2 gradually relaxes by listening to a pleasant sound. The signal detection unit 52 determines whether or not the fluctuation of the pulsation signal has been diffused to a certain extent by using a Lorentz plot method or the like (S3). If yes, the signal detection unit 52 receives the sound from the speaker 4 via the control unit 54. Intermittently (the sound has a stop time) (S4). In other words, when the degree of relaxation progresses, the continuous sound is switched to an intermittent sound (a sound having 1 / f fluctuation).

  The subject 2 who is in a relaxed state may be drawn into the sleep state at the timing when the sound disappears during the period when the sound is heard because the consciousness concentrates on the sound and the sleep disorder is lost. As is known, if the sound volume is too high or the silent time is short, the above-mentioned pulling may not occur.

  Therefore, the specific signal extraction unit 53 determines whether or not the pulsation cycle is shortened by using the fact that the pulsation cycle is temporarily shortened in the previous stage of being drawn into the sleep state (S5). Specifically, as shown in FIG. 3, when the pulsation period drops to near 0.9, it is determined that the stage is before being drawn into the sleep state. When it is determined as YES in S5, the control unit 54 decreases the volume and lengthens the stop period (S6). As the volume decreases and the stop period (silence period) becomes longer, the phenomenon of being drawn into the sleep state is more likely to occur.

  Thereafter, the specific signal extraction unit 53 determines whether or not the pulsation period has become longer again (S7), and if yes, the pull-in to the sleep state has been completed. Generation of sound from the speaker 4 is stopped (S8), and data recording is terminated (S9). Specifically, as shown in FIG. 3, it is determined whether or not the pulsation period has increased to 1.0 or more.

  The period that is the criterion for determination in S5 = 0.9 and the period that is the criterion for determination in S7 = 1.0 are originally subject to individual differences in pulsation. Adjust based on data. Moreover, the management apparatus 7 monitors the pulsation data obtained from the analysis / control unit 5, and if the cycle becomes abnormally long or short, the health condition of the subject may be deteriorated. Therefore, you may make it display that and notify a test subject.

  The change of the pulsation period and the change of the sound in the steps S4 to S8 will be described with reference to FIG. The subject relaxes while listening to the pleasant sound S accompanied by the silent period Sa, and a period Ps in which the pulsation period decreases from around 1.0 to around 0.9 appears. This period Ps is a state before being drawn into the sleep state as described above, and after the period Ps, the volume Sv of the sound S is decreased and the length of the silent period Sa is increased. After that, the pulsation period becomes longer again, and when the period Pl in which the pulsation period is equal to or greater than 1.0 occurs, it is determined that the state has shifted to sleep, and the sound S is stopped.

  As described above, the subject does not need an operation to be consciously operated such as a joystick, and only needs to listen to the pleasant sound S emitted from the speaker 4, and the sound S itself may be drawn into sleep. Since the volume is reduced at a high timing and the silent period is lengthened, it is smoothly introduced into sleep. Note that the operation of lowering the volume Sv and lengthening the sound stop period Sa in S6 may be either an operation of lowering the volume Sv or an operation of extending the stop period Sa.

  A dry eye prevention apparatus as a human body state transition apparatus according to Embodiment 2 of the present invention will be described with reference to FIGS. As shown in FIG. 4, the dry eye prevention device 10 is attached to a lens frame 11 of a spectacle and is attached to a sensor unit 13 that detects movement of the eyelid 12 and converts it into an electrical signal, and a portion of the vine frame 14 that covers the ear. And a speaker 15.

  The sensor unit 13 and the speaker 15 are connected to the analysis / control unit 16 as shown in FIG. The analysis / control unit 16 includes a blink detection unit 17 that detects a blink operation from the electrical signal sent from the sensor unit 13, a cycle determination unit 18 that determines a cycle of the detected blink operation, and an alarm to the speaker drive unit 19. The stimulus signal generation unit 20 that supplies sound, the control unit 21 that starts and stops the stimulus signal generation unit 20 based on the blink cycle determined by the cycle determination unit 18, and the data of the cycle determined by the cycle determination unit 18 are externally transmitted. And a wireless unit 23 for transmitting to the management device 22.

  Next, the operation will be described based on the flowchart of FIG. For example, when a subject operating a personal computer activates the dry eye prevention device 10 attached to glasses, the control unit 21 determines whether or not the blink cycle determined by the cycle determination unit 18 has become longer (S11). ). Specifically, the blink cycle determined by the cycle determination unit 18 always fluctuates between about 2 to 5 seconds, for example, but it is determined that the average value is increased to about 7 to 8 seconds, for example. If the answer is yes, the stimulation signal generator 20 is activated and an alarm sound having a period of 2 to 3 seconds is produced from the speaker 15 (S12).

  Thereafter, the control unit 21 determines whether or not the blinking cycle is longer (S13), and if yes, sends a signal to the stimulus signal generation unit 20 to increase the volume of the alarm sound (S14). Specifically, it is determined as yes when the average blink cycle becomes longer than, for example, about 10 seconds.

  If it is determined in S13 that the blink cycle has not become longer, it is determined whether or not a period with a shorter cycle has appeared (S15). If not, the volume of the alarm sound is increased (S14). If a period with a short cycle appears, it is further determined whether or not the cycle is synchronized with the cycle of the alarm sound (2 to 3 seconds) (S16).

  Specifically, when a period of 4 to 5 seconds, for example, appears, it is considered that the person has escaped from the overstressed state. Therefore, the period is synchronized with the alarm sound without further increasing the alarm volume. It will be determined whether or not.

  In S16, when it is determined that the blink period is synchronized with the alarm sound period, it is considered that the tension has been completely removed and the possibility of blinking at an appropriate frequency and resulting in dry eyes has been resolved. The alarm sound is stopped (S17). By stopping the alarm sound, the subject can receive no extra auditory stimulation and can concentrate on the operation of the personal computer again.

  Instead of increasing the volume of the alarm sound in S14, for example, an alarm sound at intervals of 1 to 2 seconds may be used, or the volume of the alarm sound may be increased and the frequency may be increased. Furthermore, after it is determined in S16 that the blinking cycle is synchronized with the cycle of the alarm sound, the alarm sound is not stopped immediately, but the volume of the alarm sound is lowered or the alarm sound has a long interval (for example, 4 to 5). Seconds).

1 Sleep Induction Device 2 Human Body 3 Sensor Unit (Signal Conversion Unit)
4 Speaker (stimulation unit)
5 Analysis / Control Unit 10 Dry Eye Prevention Device 13 Sensor Unit (Signal Conversion Unit)
15 Speaker (stimulation unit)
16 Analysis unit 21 Control unit 54 Control unit

Claims (8)

A signal converter that detects the movement of a predetermined part of the human body and converts it into an electrical signal;
An analysis unit for analyzing an electrical signal from the signal conversion unit;
A stimulating unit for stimulating the human body;
A human body state transition device comprising: a control unit that changes an amount and / or frequency of a stimulus output from the stimulus applying unit based on an analysis result of the analysis unit.   The signal conversion unit converts the pulsation of a human body into an electrical signal, the stimulus applying unit outputs a sound stimulus, and the control unit changes the amount and / or frequency of the sound stimulus output from the stimulus applying unit. The human body state transition device according to claim 1, wherein the apparatus is guided to a sleep state.   The human body state transition device according to claim 2, wherein the sound stimulus output by the stimulus applying unit is a sound having 1 / f fluctuation characteristics.   The human body state transition device according to claim 3, wherein the sound stimulus output by the stimulus applying unit has a silent period.   The control unit reduces the amount of stimulation output from the stimulation applying unit and / or decreases the frequency when the analysis result of the analysis unit indicates that the cycle of the pulsation of the human body is shortened. The human body state transition device according to any one of claims 2 to 4, characterized in that:   The signal conversion unit converts a blink of a human body into an electrical signal, the stimulus applying unit outputs a sound stimulus, and the control unit changes the amount and / or frequency of the sound stimulus output from the stimulus applying unit. The human body state transition device according to claim 1, wherein blinking is induced at an appropriate frequency to prevent dry eye.   The control unit increases the amount of stimulation output from the stimulation applying unit and / or increases the frequency when the analysis result of the analysis unit indicates that the blinking frequency of the human body has decreased. The human body state transition device according to claim 6.   The control unit reduces the amount of stimulation output from the stimulation applying unit and / or decreases the frequency when the analysis result of the analysis unit indicates that the frequency of blinking of the human body is appropriate. The human body state transition device according to claim 6.

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