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JP2002200051

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2002200051
[0001]
The present invention relates to a mental state recognition system for recording and monitoring
a human mental (mental) state, and further to monitoring of the mental (mental) state, health
condition, surrounding environment, etc. It also relates to health / safety monitors that record
and monitor. The present invention also relates to a human interface that controls an electronic
device by a psychological action using this mental state recognition system.
[0002]
2. Description of the Related Art A mechanism, a regulation, a device, software, a method, a
concept, etc. for a person to receive information from a device or to give information to the
device and operate the device in reverse, a human interface or a man-machine interface It is said.
As a human interface for input in a personal computer (PC), a method of manual operation by a
human such as a keyboard, a tablet, a mouse, etc. is common. Recently, voice input has been
attempted as a human interface for input. The output human interface includes a display, a
printer, and a speaker. Icons displayed on the display screen, windows, menus, sounds emitted
when an error occurs, etc. are also one of the human interfaces. Not only personal computers but
also home appliances and industrial electronic devices, human beings can manually press a
switch, operate a keyboard by hand, or perform voice input using a conventional general human
interface for input. is there.
[0003]
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[Problems to be Solved by the Invention] There is a limit to the human interface for input limited
to such manual operation and voice input when pursuing extreme convenience or when in
physical condition. .
[0004]
In addition, when simultaneous monitoring or continuous recording of the health condition and
the safety condition is required while a person is moving, it is necessary not to place a heavy
burden on the person.
However, in the past, a system that records and monitors the health and safety status using a
combination of many sensors and electronic devices is adopted, and signals resulting from the
variety of sensors as well as the problems of weight and size There is also a problem in terms of
processing complexity. Furthermore, it is generally difficult to monitor mental states such as
whether the person is nervous or calm.
[0005]
In view of such problems, an object of the present invention is to provide a mental state
recognition system which monitors (monitors) a human mental state (mental state) in real time
by a simple method.
[0006]
Another object of the present invention is to simultaneously and continuously monitor the health
condition and the environmental condition (safety condition) in which the human being is placed,
in addition to the mental condition of the human being, to improve mental and physical health
and It is to provide a mental state recognition system capable of managing safety.
[0007]
Still another object of the present invention is not limited to manual operation and voice input,
but is psychological state recognition as an input human interface capable of controlling devices
such as home appliances by psychologically requesting the heart It is to provide a system.
[0008]
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SUMMARY OF THE INVENTION In view of the above object, a first feature of the present
invention is a vibration sensor for a first frequency, an amplifier for a first frequency connected
to the vibration sensor for the first frequency, and The gist of the present invention is a
psychological state recognition system having a psychological monitor comprising a modulator
for modulating the output of the frequency amplifier and a signal transmitting means for
transmitting the output signal of the modulator.
Here, the “first frequency vibration sensor” has high sensitivity in the 0 to 30 Hz band where
body surface minute vibration generated according to the mental state can be measured.
The vibration sensor for the first frequency detects body surface minute vibration generated
from the human body equipped with the psychological monitor, and generates an electrical
signal corresponding to the psychological request.
[0009]
Various vibrations exist in the human body.
The tremor of the human body (physiological tremor) occurs not only when encountering cold
and fear, but also in various diseases and at normal rest. However, apart from this, it is known
that there are fine tremors on the surface of the living body which are not perceived visually. The
minute vibration (micro vibration) of the body surface is called "body surface minute vibration".
Focusing on the frequency component of vibration, the vibration in the frequency band of 0 to
30 Hz is due to body surface minute vibration, which corresponds to the mental state and mental
state. That is, body surface minute vibration corresponding to calmness, tension, anxiety,
concentration, relaxation, pleasure, etc. can be observed. Many factors have been considered as
factors affecting body surface micro-vibration. The main ones are temperature, emotions such as
anxiety, fatigue season, menstrual cycle, etc., and the effects of various drug loads and circulatory
function are also examined. With regard to the generation mechanism of body surface
microvibrations, theories such as the action of autonomic nerve, spinal reflexes, cardiac
elastography, and muscle fiber oscillation have been proposed, but at present no clear unified
opinion has been obtained. It is also speculated that the occurrence of body surface microoscillations is also due to the blood flow state caused by the heart beat.
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[0010]
The tremor rhythms of body surface micro-oscillations are similar to the rhythms of
electroencephalograms, so they are classified according to the rhythms of
electroencephalograms. That is, body surface minute vibrations are classified into δ waves of 1
to 4 Hz, θ waves of 4 to 8 Hz, α waves of 8 to 13 Hz, β waves of 13 to 20 Hz, and ε waves of
20 to 30 Hz. Therefore, the first frequency vibration sensor detects the vibration by a plurality of
narrow band vibration sensors having resonance frequencies respectively corresponding to the
δ wave, the θ wave, the α wave, the β wave, and the ε wave. The θ wave, the α wave, the β
wave and the ε wave can be detected effectively.
[0011]
The psychology monitor according to the first aspect of the present invention comprises outputs
of a second frequency vibration sensor, a second frequency amplifier connected to the second
frequency vibration sensor, a first frequency amplifier and a second frequency amplifier.
Preferably, the apparatus further comprises an adder for adding, and the output of the adder is
input to the modulator. Here, the “second frequency vibration sensor” is integrated on the
same semiconductor chip as the first frequency vibration sensor and has high sensitivity in the
band of 20 Hz to 20 kHz. The “second-frequency vibration sensor” is a medium-frequency
vibration component (acoustic vibration) caused by life activity inside the human body, a
vibration component that the vibration source of the surrounding environment has propagated
and reached the human body, and the surrounding air. The sound wave component etc. which
are propagated are measured simultaneously and continuously near the body surface.
[0012]
The vibration observed on the surface of the human body is a superposition of the vibrations
transmitted from many vibration sources. Focusing on the frequency components of vibration,
the low frequency region of 0 to 30 Hz is due to body surface minute vibration, and corresponds
to psycho-mental state (calmness, tension, anxiety, concentration, relaxation, etc.) . Also, the
medium frequency range of 20 Hz to 20 kHz is the human audible frequency. Such a wide range
of vibration information can be efficiently obtained by a vibration sensor having a wide band
characteristic in which the first frequency vibration sensor and the second frequency vibration
sensor are integrated on the same semiconductor chip.
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[0013]
In the first aspect of the present invention, a signal receiving means for receiving an output
signal from a psychomonitor, a demodulator for demodulating an output signal received by the
signal receiving means, and a signal demodulated by the demodulator being converted into a
frequency spectrum It is preferable to further have a data analysis device comprising a Fourier
transformer to be used and a frequency spectrum decoding device for analyzing the frequency
spectrum obtained by this Fourier transformer. Body surface minute vibration is obtained as a
time waveform, so this time waveform is converted into a frequency spectrum by a Fourier
transformer, and changes in the frequency spectrum distribution are analyzed by a frequency
spectrum decoding apparatus. By the second frequency vibration sensor, the medium frequency
vibration component (acoustic vibration) caused by life activity inside the human body, the
vibration source of the surrounding environment is propagated and the vibration component that
reaches the human body, and the surrounding air are If the incoming sound components etc. are
measured simultaneously and continuously near the body surface, perform signal processing on
the frequency axis such as frequency filtering and frequency spectrum analysis on these
temporally fluctuating vibration signals. Thus, it is possible to simultaneously and continuously
monitor the mental condition, the health condition of the person and the environmental condition
in which the person is placed. For example, whether it is settled or not by examining the change
in relative intensity of at least two spectra of the δ wave, the θ wave, the α wave, the β wave,
and the ε wave detected by the first frequency vibration sensor It becomes possible to know the
individual's mental state, such as whether you are well, depressed, concentrated, relaxed.
Furthermore, the signals from the first frequency vibration sensor and the second frequency
vibration sensor are transmitted by radio waves continuously or after accumulation for a fixed
time, and are monitored, recorded, or signal processed at a remote place. You may
[0014]
On the other hand, by filtering or frequency spectrum analyzing the output signal detected by the
vibration sensor for the second frequency, the person wearing the psychology monitor walks,
runs, climbs stairs, or descends stairs It is possible to know whether you are walking on hard
ground or soft ground. In addition, there is a lot of human beings, there is wind, is it raining, and
so on, or transportation information such as riding on a train, riding on a private car or riding on
a bus, etc. It becomes possible to continuously monitor etc.
[0015]
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A second feature of the present invention is a vibration sensor for a first frequency, an amplifier
for a first frequency connected to the vibration sensor for a first frequency, and a signal
amplified by the amplifier for the first frequency converted into a frequency spectrum The gist of
the present invention is a psychological state recognition system comprising a Fourier
transformer and trigger signal generating means for detecting a change in frequency spectrum
distribution obtained by the Fourier transformer and generating a trigger signal. Here, the “first
frequency vibration sensor” is a vibration sensor in the 0 to 30 Hz band which can measure
body surface minute vibration generated according to the mental state, as in the first feature of
the present invention.
[0016]
In the second feature of the present invention, the electronic device further comprises an option
indicator for sequentially displaying a plurality of selection contents, and the option indicator
outputs a control signal corresponding to the desired selection contents by the trigger signal
from the trigger signal generating means. It is preferable to do. When the information for which
you want to select is displayed (turned on) while watching the options display for sequentially
displaying or sequentially lighting a plurality of choices, strongly urge the desired information in
your head By applying a change to a muscle of a part of the body or by stiffening the hand of the
hand, a control signal corresponding to the desired selection is output. The choice indicator is not
limited to the display of video. For example, when questions are asked slowly by voice, and when
the desired option is asked, by strongly remembrance in the head, or by stiffening the fist of the
hand to change some muscles of the body, A control signal corresponding to the desired
selection content is output. As a result, it is possible to provide a mental state recognition system
as an input human interface capable of controlling a device such as a home appliance by being
requested mentally and not by hand operation and voice input but by psychologically requesting
by heart. It will be possible.
[0017]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, with reference to the drawings, first
and second embodiments of the present invention will be described. In the following description
of the drawings, the same or similar parts are denoted by the same or similar reference numerals.
However, it should be noted that the drawings are schematic, and the relationship between the
thickness and the planar dimension, the ratio of the thickness of each layer, and the like are
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different from the actual ones. Therefore, specific thicknesses and dimensions should be
determined in consideration of the following description. Moreover, it is a matter of course that
parts having different dimensional relationships and proportions are included among the
drawings.
[0018]
(First Embodiment) FIG. 1 is a schematic view showing a wristwatch type psychology monitor 1
used in a psychology recognition system according to a first embodiment. Although FIG. 1 shows
the case where the wristwatch type psychology monitor 1 is mounted on a relatively wide belt,
this is a convenient expression for showing the internal structure, and in reality, it is a belt of a
normal watch. The same belt with a width of 1 cm to 2 cm may be used. That is, as long as the
shape can be worn on the wrist, the specific shape can be arbitrarily selected. In order to
measure with higher sensitivity, it is preferable that the belt shown in FIG. 1 has an elastic
structure that can be in close contact with the wrist.
[0019]
The wristwatch type psychology monitor 1 shown in FIG. 1 is connected to a first frequency
vibration sensor S1 (piezoelectric type pickup), a first frequency amplifier 12 connected to the
first frequency vibration sensor S1, and a first frequency amplifier 12 And the antenna 14
connected to the modulator 13. Furthermore, although illustration is abbreviate | omitted, it is
needless to say that the battery is incorporated in the wristwatch-type psychology monitor 1. For
the first frequency vibration sensor S1, for example, a piezoelectric pickup such as a
semiconductor strain gauge can be used. The package of the first frequency vibration sensor S1
is formed in a slightly curved shape so as to be in close contact with the wrist. The first
frequency vibration sensor S1 detects a 0-30 Hz body surface minute vibration component from
the wrist and converts it into an electrical signal, and the signal passes through the first
frequency amplifier 12 to be a baseband signal, and this base is The band signal is transmitted to
the modulator 13. Although illustration is omitted, the wristwatch type psychology monitor 1
may have a mixer connected to the modulator 13 and a power amplifier connected to the mixer,
as in a normal transmitter. A signal from a transmitter (not shown) is input to the mixer together
with a signal from the modulator. Then, the signal amplified by the power amplifier is
transmitted from the antenna (transmission antenna) 14 as a radio wave signal. Alternatively, a
driver amplifier may be connected to the modulator 13, a phaser may be connected to the driver
amplifier, and a transmission amplifier may be connected to the phaser. Then, the transmission
amplifier may be similarly connected to the antenna (transmission antenna) 14 to transmit the
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radio wave signal from the antenna (transmission antenna) 14. In any case, by wearing the
wristwatch-type psychological monitor 1 shown in FIG. 1 on the wrist, it is possible to transmit a
signal corresponding to the psychological state from the antenna 14. The radio wave signal from
the antenna 14 is transmitted to the antenna 21 of the selection signal generator 2 described
later (see FIG. 7).
[0020]
When the amplitude of body surface minute vibration and physiological tremor is seen by gravity
acceleration G (G = 9.8 m / s2), body surface minute vibration is about 1mG to 5mG, and
physiological tremor is 1G. It is reported that the difference is about 1000 times. Fig.2 (a)-(d) is a
figure which shows the time change of the body surface minute vibration measured in each part
of the body in comparison with the heartbeat signal of FIG.2 (e) and the electrocardiogram of
FIG.2 (f). . It can be seen that the heartbeat signal of FIG. 2 (e) is a vibration of about 1 Hz.
Although illustration is omitted, the breathing sound is a vibration of about 0.1 Hz. 2 (a) shows
the wrist, FIG. 2 (b) shows the thumb ball, FIG. 2 (c) shows the right tibia, and FIG. 2 (d) shows
the time variation of body surface micro-vibration measured at the left tibia. Although depending
on the sensitivity of the first frequency vibration sensor S1 and the characteristics of the first
frequency amplifier 12, a detection voltage of about 0.5 mV to 1 mV can be obtained relatively
easily. From the correspondence with the heartbeat signal shown in FIG. 2 (e) alone, the
generation mechanism of body surface microvibration is not clear as to the validity of the theory
based on the heartbeat-based elastodynamic component. In addition to this, there is also a theory
that the generation mechanism of body surface micro-oscillations is the spinal cord reflex, etc.,
and it is difficult even today to determine which is appropriate. Body surface micro-oscillations
are found in isotherm animals, and body temperature micro-oscillations are thought to be
autonomic nervous activity related to thermoregulation, since body temperature microoscillations are not found in metamorphosed animals. The fact that body surface microvibrations
are related to autonomic nerves is also estimated from changes in body surface microvibrations
due to changes in air temperature because autonomic nerve agents and autonomic nerve
blockers act on body surface microvibrations. ing.
[0021]
Body surface micro-oscillations are said to be caused by the contraction movement of individual
muscle fibers of skeletal muscle and represent muscle tone. For example, it is possible to increase
the alpha wave component by stiffening the hand of the hand or by applying changes to muscles
of a part of the body. FIG. 3 is a view showing a frequency spectrum at 1 to 25 Hz of body
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surface minute vibration measured at each part of the body corresponding to FIG. 3 (a) shows the
wrist, FIG. 3 (b) shows the thumb ball, FIG. 3 (c) shows the right tibia, and FIG. 3 (d) shows the
frequency spectrum of body surface minute vibration measured at the left tibia. Show. In FIGS.
3A to 3D, particularly, the α wave is indicated by a broken line.
[0022]
FIG. 4 (a) shows parietal surface micro-vibrations measured on the parietal region of a healthy
subject without mental and physical fatigue. A clear peak of the spectrum of the θ wave is
observed. On the other hand, FIG. 4 (b) shows that the same subject as in FIG. 4 (a) keeps the
state all night long for several days, and the surface of the parietal surface becomes minute when
stress is mentally and physically accumulated. It is a vibration. In FIG. 4 (b), peaks are seen at
several frequencies, and it can be seen that the spectrum is low overall and the waveform is
disordered.
[0023]
FIG. 5 shows the integrated values of the spectrum of the θ, α, and β waves in FIG. Here, the
"integrated value" is the sum of the power of each band when sampling is performed at a
frequency of 50 Hz. It can be seen that although the θ wave component is dominant at rest, the
integrated value of the spectrum is low overall and the β wave component is dominant when the
stress is accumulated. It can be seen that there is a close relationship between body surface
microvibration and autonomic nervous function.
[0024]
As shown in FIG. 4 and FIG. 5, it is understood that the psychology / mental state can be grasped
by comparing the relative intensities of the δ wave, the θ wave, the α wave, the β wave and
the ε wave. In the clinical EEG during sleep, extremely characteristic waveforms are shown
corresponding to each stage of natural sleep from the onset of sleep to deep sleep. It is well
known that it can be determined whether you are in a sleep state. Also, it is said that the
considerably significant individual differences of electroencephalograms present at awakening
decrease during sleep and show similar sleep electroencephalograms. With regard to periodicity,
it has been found that REM (REM) sleep and non-REM (NREM) sleep are repeated four or five
times with a cycle of approximately 90 minutes to 110 minutes, and that the
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electroencephalogram exhibits certain characteristic changes. However, in the body surface
micro-oscillation, such a sleep periodicity is not recognized although it corresponds well with the
rhythm of the electroencephalogram. From this, it is considered that there is no common factor
in the generation mechanism between the electroencephalogram and the body surface microoscillation, and there are also reports that denied the relationship between the
electroencephalogram and the body surface micro-oscillation. In any case, body surface microvibration corresponding to the psycho-mental state such as calmness, nervousness, anxiety,
concentration, relaxation, pleasure, etc. is measured by the vibration sensor S1 for the first
frequency of the wristwatch-type psychology monitor 1 shown in FIG. By comparing the relative
intensities of the δ wave, the θ wave, the α wave, the β wave, and the ε wave contained
therein, it is possible to grasp the psychology / mental state of a person wearing the wristwatch
type psychology monitor 1.
[0025]
FIG. 6 is a bird's-eye view showing an example of the structure of the first frequency vibration
sensor S1 mounted on the wristwatch-type psychology monitor 1 shown in FIG. The vibration
sensor S1 for the first frequency can measure δ waves, θ waves, α waves, β waves, and ε
waves with a sensitivity of 1 to 4 Hz, 4 to 8 Hz, 8 to 13 Hz, 13 to 20 Hz, 20 to 30 Hz The
piezoelectric pick-up of the cantilever structure has a resonant frequency in each of the two
bands. Among these, FIG. 6 shows the structures of the first cantilever 101, the second cantilever
102 and the third cantilever 103 for the alpha wave, the beta wave and the epsilon wave. The
first cantilever beam 101, the second cantilever beam 102, and the third cantilever beam 103
are provided inside the first pit 111, the second pit 112, and the third pit 113 provided in the Si
substrate 121, respectively. It is done. A passivation film is formed on the surface of the Si
substrate 121 other than the first cantilever beam 101, the second cantilever beam 102, the
surface of the third cantilever beam 103, and the first pit 111, the second pit 112, and the third
pit 113. 122 are provided.
[0026]
In the first cantilever beam 101 of FIG. 6, the width y1 of the weight portion, the length x1, and
the width b and the length l of the piezoresistive portion are selected so that the resonance
frequency f0 = 10 Hz for α waves. . Generally, the resonance frequency f0 of a cantilever type
piezoelectric type pickup is as follows: mass of a weight of width y1, x1 is m, thickness of a
piezoresistor of width b and length l is h, Young's modulus is E For example, f0 = (1 / 2.pi.) (3 EJ
/ ml 3) 1/2 (1) ここで、J=bh3/12 ・・・・・(2)である。 Specifically, the specific
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gravity of Si is 2.3 g / cm 3, Young's modulus E of Si = 13.1 × 10 10 N / m 2, the thickness h of
the piezoresistive portion is 28 μm, the width b is 1 mm, the length l is 3.5 mm, the weight
Assuming that the thickness t of the part is 700 μm, the length x 1 of the weight part is 5.6 μm,
the width y 1 of the weight part is 11.2 μm, and the resonance frequency f 0 is 10 Hz.
[0027]
The second cantilever beam 102 in FIG. 6 is a β-wave piezoelectric type pickup with a resonance
frequency f0 = 16 Hz. Assuming that the width b, the length l and the thickness h of the
piezoresistive portion are equal to the first cantilever beam 101, the length x 2 of the second
cantilever beam 102 is 3.5 μm, from equation (1). The resonance frequency f0 = 16 Hz at the
width y2 = 7 μm of the weight portion. The third cantilever beam 103 in FIG. 6 is an ε wave
piezoelectric type pickup with a resonance frequency f0 = 25 Hz. Assuming that the width b, the
length l and the thickness h of the piezoresistive portion are equal to the first cantilever beam
101, the length x3 of the third cantilever beam 103 is 2.2 μm, from equation (1). The width y3
of the weight portion is 4.5 μm, and the resonance frequency f0 is 25 Hz. If a metal film such as
gold (Au) is deposited by evaporation or plating on the passivation film 122 of each weight
portion of the first cantilever beam 101, the second cantilever beam 102, and the third cantilever
beam 103, Since the mass m of the weight portion is increased, it can be understood from
Equation (1) that the dimensions of each weight portion can be reduced.
[0028]
The selection signal generator 2 used in the mental state recognition system according to the
first embodiment of the present invention is, as shown in FIG. 7, an antenna 21, an amplifier 22
connected to the antenna 21, and a demodulation connected to the amplifier 22. Device 23,
Fourier transformer 24 connected to demodulator 23, trigger signal generating means (25, 26)
connected to Fourier transformer 24, option indicator connected to the trigger signal generating
means (25, 26) And 27. The Fourier transformer 24 is a fast Fourier transformer (FFT) 24. The
trigger signal generating means (25, 26) comprises a frequency band component analyzer 25
and an output comparison / determination unit 26 connected to the frequency band component
analyzer 25 and is obtained by a Fourier transformer (fast Fourier transformer) 24. The change
in the frequency spectrum distribution is detected to generate a trigger signal. The amplifier 22
is preferably a low noise amplifier. A mixer is connected to the low noise amplifier 22 connected
to the antenna 21 and an intermediate frequency (IF) amplifier connected to the mixer is
provided as in the configuration of a known wireless device (receiver). The demodulator 23 may
be connected to the amplifier to constitute the selection signal generator 2. The demodulator 23
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outputs a baseband signal. Signals from a transmitter (not shown) are input to the mixer together
with the signal from the low noise amplifier. Alternatively, the selection signal generator 2 may
include a high pass filter connected to the low noise amplifier 22 connected to the antenna 21.
The high-pass filter can easily avoid noise if it is a high-pass filter of about 30 Hz in consideration
of the bands of δ wave, θ wave, α wave, β wave, and ε wave. Further, it may be configured to
be connected to the fast Fourier transformer 24 via a mixer connected to the high pass filter and
an intermediate frequency (IF) amplifier connected to the mixer. The fast Fourier transformer 24
obtains power spectra of δ wave, θ wave, α wave, β wave, and ε wave. Each power spectrum
obtained by the fast Fourier transformer 24 is decomposed by the frequency band component
analyzer 25 into spectrums of δ wave, θ wave, α wave, β wave, ε wave, and the δ wave, θ
wave, The spectra of the alpha wave, beta wave, and epsilon wave are compared with each other
in relative intensity in the output comparing / determining unit 26. The output comparison /
determination unit 26 generates a trigger signal when, for example, the alpha wave component
<beta wave component (3) alpha wave component> beta wave component (4) This trigger signal
is output to the option display 27.
[0029]
The option display 27 sequentially displays a predetermined number (type) of display contents
for a predetermined time. The option display 27 of the selection signal generator 2 shown in FIG.
7 is an example of sequentially displaying five display contents. There are "Option A", "Option B",
"Option C", "Correction" and "Back to front" plates on the panel of the option indicator 27, and
light emitting diodes, fluorescent tubes, etc. arranged on the back surface The back light is
turned on selectively. For example, it lights up slowly for 3 seconds in the order of “option A”
→ “option B” → “option C” → “correction” → “back” ”→“ option A ”.
[0030]
Alternatively, as shown in FIG. 8, “Option A” → “Option B” → “Option C” →
“Correction” → “Back” ”→“ Option A ”display on a liquid crystal display (LCD), a CRT or
the like Each of the three seconds may be selectively displayed on the display device of FIG. 8
shows a display device of a personal computer, but in practice, it is sufficient to display "Option
A", "Option B", "Option C", "Correction" and "Return to the front" The display unit may be a small
display unit. For example, the option indicator 27 may be placed on part of the glasses to display
desired content. Also, it may be displayed constantly at one corner of the screen as a sub-screen
of the television receiver. Similarly, it may be displayed on a portable information device such as
a mobile phone, a PHS, a PDA, a notebook computer, an electronic notebook, and the like.
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Furthermore, these multiple options are not limited to visual means. For example, a plurality of
options may be presented by voice, or smell and touch may be used. In any case, when a desired
option is presented by some means, if you strongly think that you want to select it, the body
surface minute vibration spectrum pattern detected by the wristwatch-type psychology monitor
1 changes. Become. Furthermore, as described above, the alpha wave component is also
increased by stiffening the hand of the hand and giving a change to a muscle of a part of the
body, so the body surface micro vibration spectrum detected by the wristwatch-type psychology
monitor 1 The pattern will change.
[0031]
Then, as shown in FIG. 8, when “Option B” is displayed, a person wearing the wristwatch-type
psychology monitor 1 selects “B! In the heart, the frequency spectrum pattern of the electric
signal transmitted from the first frequency vibration sensor S1 shown in FIG. 1 changes, and B is
detected by the selection signal generator 2 detecting the change. The selection is confirmed, and
a control signal corresponding to the selection of the B signal is output from the output terminal
of the selection signal generator 2. For example, if the content of “option B” is “turn on room
lighting”, the room lighting is turned on by the control signal (B) from the selection signal
generator 2. If an inappropriate selection is made, then wait for the timing at which "correction"
is displayed on the option display 27, and when "correction" is displayed, select "correction"!
"Choice of choice B" is canceled when calling with heart and mind. Also, wait for the timing when
“Return to the front” is displayed, and select “Return to the front,” “Option A,” “Option
B,” and “Option C” of the upper option group at the previous stage are displayed in order. Ru.
Furthermore, "Reply" is displayed when repeating the sequence of "Option A" → "Option B" →
"Option C" → "Correction" → "Back" → "Option A" a certain number of times, for example 10
times Alternatively, the display time may be changed and adjusted. That is, when "adjustment" is
displayed, select "adjustment"! 強 く 強 く 心 よ う よ う よ う よ う よ う よ う よ う よ う よ う
よう呼ぶ心心心心心心心心ようようようようようようようようようようよう
よ う よ う よ う よ う よ う よ う よ う よ う よ う. The selection screen is, for example, "0.5
second display"-"1 second display"-"2 seconds display"-"3 seconds display"-"5 seconds display""correction"-"backward"-> Repeat the display in the order of "0.5 second display". When "1
second display" is displayed while viewing this repeated display, select "1 second display"! In the
above example, the display time that was displayed for 3 seconds each is changed, and this time,
“option A”, “option B”, “option C”, “correction” is changed for one second each. And
"back to front" are selectively displayed.
[0032]
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As described above, according to the present invention, it is possible to control the opening /
closing of the door, the operation of the home appliance, the operation of the air conditioner, etc.
by psychologically requesting the heart without moving the hand, and the ultimate convenience
is achieved. Be done. For example, an option indicator 27 is provided on a part of the front door
of each home, and "open" → "call" → "cannot open" → "correction" → "back" → "open" in order
You may display it. Then, when "Open" is displayed, select "Open"! When I call it with all my
heart, a signal to open the door is sent with the ID code and I can open the door. For example, it
becomes possible to open the door while holding things in both hands. When "Call" is displayed,
select "Call"! When I call it with all my heart, an automatic voice generator generates a voice for
calling a person in the home, and it is possible to have him come to the entrance.
[0033]
It is also extremely useful when the body is in an inconvenient situation. For example, in the case
of the electric wheelchair, the option indicator 27 is provided in a part of the electric wheelchair,
and the option indicator 27 "turns on the power", "correction", "confirmation", "go forward", "
"Correction", "Confirmation", "Curve right", "Correction", "Confirmation", "Curve left",
"Confirmation", "Correction", "Confirmation", "Back", "Correction", "Correction" Make the display
necessary for the operation of the electric wheelchair, such as confirmation, "turn off the power",
"correction", and "confirmation" sequentially, and when the desired operation content is
displayed, make a mental request in mind Can drive an electric wheelchair. In the case of the
electric wheelchair, since there is a safety problem, when the signal of "confirmation" comes out
of the output terminal of the selection signal generator 2, an operation corresponding to the
immediately preceding option is executed. Furthermore, when "Forward" and "Confirm" are
selected, a speed selection screen is displayed, and a desired speed can be selected. If you "turn
right" and "confirm", for example, a selection screen such as "15 °", "30 °", "45 °", "60 °", "75
°", "90 °", etc. is displayed. You can choose the bending angle.
[0034]
Similarly, a human who has lost the speech function due to a laryngeal cancer operation or the
like can realize communication by thinking with the heart while looking at the option indicator
27.
[0035]
04-05-2019
14
In the psychological state recognition system according to the first embodiment of the present
invention, the wristwatch-type psychological monitor 1 shown in FIG. 1 transmits a radio wave
signal from the antenna 14 and the antenna 21 of the selection signal generator 2 shown in FIG.
It is a system that receives radio signals.
However, information may be transmitted between the wristwatch-type psychology monitor 1
and the selection signal generator 2 by using an optical signal such as infrared light or an
ultrasonic wave instead of the radio wave signal. Furthermore, if the wristwatch type psychology
monitor 1 and the selection signal generator 2 are mounted on the same circuit board,
information can be transmitted between the wristwatch type psychology monitor 1 and the
selection signal generator 2 through the signal wiring of the circuit board. become.
[0036]
The adoption of a graphical user interface (GUI) that displays pictures and icons on the screen
and enables intuitive and easy-to-understand operations has become commonplace in the OS for
personal computers. In the conventional GUI environment, mouse operation has been the basis,
but according to the mental state recognition system according to the first embodiment of the
present invention, the operation is performed by mentally thinking with a strong heart Can do.
Checkboxes for selecting multiple items that were displayed simultaneously in the conventional
GUI environment, buttons used for function execution or process confirmation, etc., radio buttons
used for selecting only one item from multiple items, etc. If sequentially displayed, since it
functions as the option display 27 of the present invention, various contents can be selected. In
the pull-down menu, the color of the selected content is sequentially changed, and when a
specific color is displayed in the desired content, the content of the pull-down menu can be
selected if the content is strongly called.
[0037]
In addition, the radio wave signal from the wristwatch type psychology monitor 1 is not directly
transmitted to the selection signal generator 2, but the radio wave signal from the wristwatch
type psychology monitor 1 is temporarily portable radio terminal, wearable computer, small
video You may comprise so that it may transmit to a camera etc. In addition, these portable
wireless terminals, wearable computers, small video cameras, etc. can also be configured to be
able to receive signals from a heart rate monitor, a blood pressure monitor, a thermometer, a
pedometer, a respiration monitor, an optical sensor, etc. Also good. A signal may be transmitted
04-05-2019
15
from the wristwatch type psychology monitor 1 to a portable wireless terminal, a wearable
computer, a small video camera or the like by using an optical signal such as infrared rays or an
ultrasonic wave, etc. I do not mind. Signals from a heart rate monitor, a blood pressure monitor, a
thermometer, a pedometer, a respiration monitor, an optical sensor, etc. may be optical signals,
ultrasonic waves, etc. Furthermore, if these portable wireless terminals, wearable computers,
small video cameras, etc. are combined with a small microphone, acceleration sensor, global
positioning system (GPS), necessary transmitters, etc. Even when the wearer of the type
psychology monitor 1 is moving at a remote place, it is possible to simultaneously and
continuously monitor the recording of the wearer's behavior and the management of health and
safety by a third party.
[0038]
Second Embodiment A mental state recognition system according to a second embodiment of the
present invention relates to a portable personal health and safety monitoring system. FIG. 9 (a) is
a schematic view showing a wristwatch type psychology monitor (portable personal health and
safety monitor) 3 used in the psychology recognition system according to the second
embodiment of the present invention. Sources of vibration can be classified into the inside of the
human body and the outside (ambient environment). First, the vibration caused by the vibration
source inside the human body includes speech sound, heartbeat sound, breathing sound, body
surface minute vibration, walking state sound (steps up and down, ground state) and the like. On
the other hand, the vibration caused by the external vibration source includes the noise of others,
the noise of walking, the noise of the city, the noise of a train, the noise of a train, the noise of a
car, the noise of a car, the noise of a car, Sounds from airplanes, busses, birds and animals, rain,
winds, trees swaying in the wind, sounds and vibrations from home appliances and OA
equipment. Vibration due to these human body internal and external (ambient environment)
sources includes various frequency components (0 to 20 kHz or more). The wristwatch-type
psychology monitor (portable personal health / safety monitor) 3 of the mental state recognition
system according to the second embodiment of the present invention detects all these vibrations
and converts them into electric signals. As mentioned in the first embodiment of the present
invention, FIG. 9 (a) is a convenient expression for showing the internal structure, and in reality it
is 1 cm to 2 cm similar to the belt of a normal watch. The width of the belt may be narrower than
the illustrated image.
[0039]
The wristwatch type psychology monitor 3 shown in FIG. 9A includes a first vibration sensor
04-05-2019
16
(vibration sensor for a first frequency) S1, a second vibration sensor (a vibration sensor for a
second frequency) S2, a third vibration sensor (a third frequency) Vibration sensor) S3, first
amplifier (first frequency amplifier) A1, second amplifier (second frequency amplifier) A2, third
amplifier (first amplifier) connected to the three vibration sensors S1, S2 and S3, respectively
Third frequency amplifier A3; adder 31 connected to these three amplifiers A1, A2 and A3;
modulator 13 connected to adder 31; signal transmitting means 14 connected to modulator 13 It
is configured. As the signal transmission means 14, the antenna 14 or a power amplifier (not
shown) for supplying a transmission signal to the antenna 14 or the like corresponds.
Furthermore, although illustration is abbreviate | omitted, it is needless to say that the battery is
incorporated in the wristwatch-type psychology monitor 3. The first vibration sensor S1 is a first
frequency vibration sensor with a frequency range of 0 to 30 Hz, the second vibration sensor S2
is a 20 Hz to 20 kHz second frequency vibration sensor, and the third vibration sensor S3 has a
sensitivity range of 20 kHz to 70 kHz. It is a vibration sensor for 3rd frequency (vibration sensor
for ultrasonic waves) which it has.
[0040]
As the first vibration sensor S1, the piezoelectric type pickup of the first frequency vibration
sensor S1 described in the first embodiment of the present invention can be used. That is, the
first vibration sensor S1 detects a minute vibration component of the body surface at 0 to 30 Hz
corresponding to δ wave, θ wave, α wave, β wave, ε wave from the wrist, converts it into an
electric signal, and converts the signal After amplification by the first amplifier A1, it is sent to
the adder 31. The detectable frequency band of the second vibration sensor S2 corresponds to
sound wave vibration that can be recognized by human hearing. Therefore, the second vibration
sensor S2 is used for human conversation, urban noise, transportation noise, household
appliance / OA equipment noise, wind noise, rain noise, forest noise, animal noise, self-walking
noise, etc. To detect. The output signal of the second vibration sensor S2 is sent to the adder 31
after being amplified by the second amplifier A2. The detectable frequency band of the third
vibration sensor S3 is a frequency band which can not be opened by humans. The third vibration
sensor S3 operates as a detection of a sound wave in a high frequency region generated in a
special environment, or as a receiver of an ecolocation device using an ultrasonic wave. The
output signal of the third vibration sensor S3 is amplified by the third amplifier A3 and then sent
to the adder 31. The vibration level of body surface minute vibration detected by the first
vibration sensor S1 is human conversation detected by the second vibration sensor S2, urban
noise, traffic noise, household appliance / OA equipment noise, wind noise, rain noise Two to
four orders of magnitude smaller than vibration levels such as forest sounds, animal calls and
self-walking sounds. That is, the output levels of the first vibration sensor S1, the second
vibration sensor S2, and the third vibration sensor S3 are generally different from one another.
Therefore, the first amplifier A1, the second amplifier A2, and the third amplifier A3 adjust the
04-05-2019
17
gain according to the output levels of the first vibration sensor S1, the second vibration sensor
S2, and the third vibration sensor S3, respectively, as shown in FIG. After adjusting to
substantially the same signal level as shown in b), the signal is sent to the adder 31.
[0041]
The adder 31 adds the signals of the frequency bands 0 to 30 Hz, 20 Hz to 20 kHz, and 20 kHz
to 70 kHz which are sent from the first amplifier A1, the second amplifier A2 and the third
amplifier A3. The output of the adder 31 becomes a baseband signal, and this baseband signal is
transmitted to the modulator 13. Although illustration is omitted, even if the wristwatch-type
psychology monitor 3 shown in FIG. 9 has a mixer connected to the modulator 13 and a power
amplifier connected to the mixer as in a normal transmitter. I do not mind. A signal from a
transmitter (not shown) is input to the mixer together with a signal from the modulator. Then,
the signal amplified by the power amplifier is transmitted from the antenna (transmission
antenna) 14 as a radio wave signal. These mixers and power amplifiers connected to the mixers
also correspond to the signal transmission means 14 of the present invention. Alternatively, a
driver amplifier may be connected to the modulator 13, a phaser may be connected to the driver
amplifier, and the signal transmitter 14 may be configured to have a transmission amplifier
connected to the phaser. Then, the transmission amplifier may be similarly connected to the
antenna (transmission antenna) 14 to transmit the radio wave signal from the antenna
(transmission antenna) 14. In any case, by wearing the wristwatch-type psychology monitor 3
shown in FIG. 9A on the wrist, it is possible to transmit a signal corresponding to the psychology
from the antenna 14. The radio wave signal from the antenna 14 is transmitted to the antenna
41 of the data analysis device 4 described later (see FIG. 11).
[0042]
As shown in FIG. 10, the first vibration sensor S1, the second vibration sensor S2, and the third
vibration sensor S3 according to the second embodiment of the present invention have the same
semiconductor substrate 85, for example, n having a (100) plane. Integrated on a silicon
substrate (Si) 85. FIG. 10 is a partial cross-sectional view schematically showing parts of a first
vibration sensor S1 and a second vibration sensor S2 according to a second embodiment of the
present invention. Although illustration is omitted, the third vibration sensor S3 has substantially
the same structure as the second vibration sensor S2.
[0043]
04-05-2019
18
As shown on the left side of FIG. 10, a recess is formed in the lower end portion region of the Si
substrate 85. The side surface of the recess exposes the (111) plane to the (100) plane of the
substrate surface, and intersects the (100) plane at an angle of 54.74 °. The thin part which
becomes a bottom part of a crevice constitutes acoustic vibration detection part 8 for detecting
acoustic vibration as the 2nd vibration sensor S2. That is, the vibrating film 88 of the second
vibration sensor S2 is formed on the thin film portion that constitutes the bottom of the concave
portion of the Si substrate 85. The vibrating film 88 has a three-layer structure, and the
lowermost layer is the p + buried layer 71. Above the p + buried layer 71, a p-type layer having
an impurity density lower than that of the p + buried layer 71 is formed. In the vicinity of the left
end of the p-type layer, ap + sinker 72 having a high impurity density similar to that of the p +
buried layer 71 is disposed. The position where the p + sinker 72 is disposed is located on the
left side of the vibrating membrane 88, and corresponds to the upper portion of the recess side
wall portion where the inner (111) surface of the lower end portion of the Si substrate 85 is
exposed. A Schottky electrode 63 is disposed on the top of the p-type layer. The material of the
Schottky electrode 63 is desirably a metal having a high specific gravity. This is to detect acoustic
vibration efficiently. Gold (Au) is used in the second embodiment of the present invention. Of
course, this does not mean that the material of the Schottky electrode 63 is limited. If the
impurity density of the p-type layer under the Schottky electrode 63 is set to about 1 × 10 14
cm −3 or less, preferably about 1 × 10 13 cm −3 or less, the voltage is not applied to the
Schottky electrode 63. Depletion layer 65 is formed in the p-type layer only at the diffusion
potential. Of course, the depletion layer 65 may be formed by a pn junction instead of the
Schottky electrode 63.
[0044]
An element isolation region 81 is disposed at both ends of the p + buried layer 71 and the p-type
layer (depletion layer 65). The element isolation region 81 is formed by embedding an element
isolation insulating film such as an oxide film in a U-shaped groove (trench) having a depth
penetrating the p + buried layer from the surface of the Si substrate 85. Although a plan view is
omitted, the element isolation region 81 is formed in a square ring shape so as to surround the
Schottky electrode 63. Furthermore, a buried layer extraction electrode 64 is disposed in contact
with the p + sinker 72.
[0045]
04-05-2019
19
In the acoustic vibration detection unit 8 as the second vibration sensor S2 shown in FIG. 10,
when the acoustic vibration enters the vibrating film 88, the vibrating film 88 physically vibrates.
When the vibrating film 88 vibrates, the physical parameters of the semiconductor region
constituting the depletion layer 65 change, and the electrical equivalent circuit constants such as
the depletion layer capacitance and the junction resistance fluctuate. In addition, since the
“generated recombination current” is generated in the depletion layer by the oscillation, a
current caused by the “generated recombination current” flows in the depletion layer 65. As a
result, physical vibration is converted to electrical vibration together with the above-mentioned
fluctuation of the electrical equivalent circuit constant. The current flows through the p + buried
layer 71 and the p + sinker 72 to the buried layer extraction electrode 64 and finally into the I /
V converter (not shown). The I / V converter converts the current output into a voltage output
and outputs the voltage output to the outside through a bonding pad connected to the I / V
converter. The voltage of the buried layer extraction electrode 64 in ohmic contact with the p +
sinker 72 is applied to the p + buried layer 71 via the p + sinker 72. Therefore, a desired voltage
can be applied between Schottky electrode 63 and p + buried layer 71. That is, by forming the
lower portion of the Schottky electrode 63 as a p-type layer having a low impurity density and
forming the depletion layer 65 in this p-type layer, the fluctuation of the electrically equivalent
circuit constant can be increased. Furthermore, since a wide p + buried layer 71 is provided
under the p type layer, carriers generated in the depletion layer 65 are efficiently taken out and
carried to the I / V converter.
[0046]
The first vibration sensor S1 is formed in the vicinity of the right end on the sectional view
shown in FIG. The first vibration sensor S1 is formed inside a wedge-shaped pit 83 provided on
the Si substrate 85. The wedge shaped pit 83 has a similar structure to the first pit 111 to the
third pit 113 shown in FIG. In the cross-sectional view shown in FIG. 10, an opening is provided
at the upper right of the pit 83. The upper right opening of the pit 83 is an opening for forming
the free end of the cantilever 84, and is formed so as to go around the weight of the cantilever
84 as in FIG. . A p-well 75 is disposed inside the Si substrate 85 adjacent to the weight portion of
the cantilever 84. In the vicinity of both ends of the p well 75, contact regions 73 and 74 having
an impurity density higher than that of the p well 75 are arranged. Piezo electrodes 61 and 62
are disposed on the Si substrate 85 above the contact regions 73 and 74, respectively. Areas
other than the Schottky electrode 63, the embedded layer extraction electrode 64, and the piezo
electrodes 61 and 62 on the surface of the Si substrate 85 are covered with a passivation film 82.
[0047]
04-05-2019
20
Similar to the cantilevers 101, 102, and 103 shown in FIG. 6, the cantilever 84 constituting the
first vibration sensor S1 shown in FIG. The thinned portion 85, i.e., the fixed end portion of the
cantilever 84, is intensively stressed by the vibration of the cantilever 84. Therefore, the p-well
75 receives a strong pressure, and its electrical resistance value changes due to the piezo effect.
By supplying a constant current to the p-well 75 through the piezoelectric electrodes 61 and 62,
the first vibration sensor S1 can convert mechanical vibration into electrical vibration of
fluctuation of voltage. Although not clear from FIG. 10, the piezo electrodes 61 and 62 of the first
vibration sensor S1 are electrically connected to a constant current source and an amplification
circuit (not shown), and the obtained electric vibration is And output to the outside through
bonding pads on the chip.
[0048]
The data analysis device 4 used in the mental state recognition system according to the second
embodiment of the present invention is, as shown in the block diagram of FIG. 11, a radio wave
signal from the wristwatch type psychology monitor 3 shown in FIG. Signal receiving means (41,
42) for receiving, demodulator 43 for demodulating the output signal received by the signal
receiving means (41, 42), Fourier transformer 44 connected to demodulator 43, Fourier
transformer 44 connected The frequency spectrum decoding device 45, the knowledge database
46 connected to the frequency spectrum decoding device 45, the psychology / ambience
environment display unit 47, the transmission unit 48 connected to the psychology / ambience
environment display unit 47, the transmission unit 48 And an antenna 49. The antenna 41 and
the amplifier 42 connected to the antenna 41 correspond to the signal receiving means (41, 42).
The amplifier 42 is preferably a low noise amplifier. The Fourier transformer 44 is preferably a
fast Fourier transformer (FFT) 44. A mixer is connected to the low noise amplifier 42 connected
to the antenna 41, and an intermediate frequency (IF) amplifier connected to the mixer is
provided. A demodulator 43 is connected to the intermediate frequency amplifier, and the data
analysis device 4 May be configured. The antenna 41, the low noise amplifier 42, the mixer, the
intermediate frequency (IF) amplifier and the like also correspond to the signal receiving means
of the present invention. The demodulator 43 outputs a baseband signal. A signal from a
transmitter (not shown) is input to the mixer together with the signal from the low noise
amplifier 42. Alternatively, the data analysis device 4 may include a filter connected to the low
noise amplifier 42 connected to the antenna 41. Further, it may be configured to be connected to
the fast Fourier transformer 44 via a mixer connected to this filter and an intermediate frequency
(IF) amplifier connected to the mixer. Power spectrum of each of δ wave, θ wave, α wave, β
wave, ε wave detected by the first vibration sensor S1 by the fast Fourier transformer 44, and
20 Hz to 20 kHz power spectrum detected by the second vibration sensor S2 The power
04-05-2019
21
spectrum of 20 kHz to 70 kHz detected by the third vibration sensor S3 is obtained. The time
waveform obtained by the wristwatch-type psychology monitor (portable personal health and
safety monitor) 3 shown in FIG. 9A is obtained by superimposing all the vibration information. By
converting on the frequency axis and analyzing the frequency spectrum shape, it is possible to
extract the event-specific frequency spectrum pattern.
Each power spectrum obtained by the fast Fourier transformer 24 is decoded by the frequency
spectrum reader 45. That is, the frequency spectrum decoding device 45 compares the power
spectrum obtained by the fast Fourier transformer 24 with the information stored in the
knowledge database 46 to obtain the physical and mental state of the person wearing the
wristwatch-type psychology monitor 3. Determine the surrounding environment. Specifically, the
frequency spectrum decoding device 45 determines the mood of a person wearing the
wristwatch-type psychology monitor 3 by examining the intensity ratio of each spectrum of δ
wave, θ wave, α wave, β wave, and ε wave. . In addition, the 20 Hz to 20 kHz power spectrum
detected by the second vibration sensor S2 is compared with the information stored in the
knowledge database 46 to determine the surrounding environment such as whether or not the
user is in a vehicle. That is, the frequency spectrum decoding device 45 simultaneously and
continuously determines the condition (psychological condition, health condition) of the human
body wearing the wristwatch-type psychological monitor 3 and the condition of the surrounding
environment. The state of mind and body of the person wearing the wristwatch type psychology
monitor 3 determined by the frequency spectrum decoding device 45 and the surrounding
environment are displayed on the psychology and surrounding environment display unit 47.
Furthermore, the content displayed on the psychology / ambient environment display unit 47 is
transmitted from the transmission unit 48 to the antenna 51 of the home 5 via the antenna 49.
The home 5 includes an antenna 51, a receiving unit 52 connected to the antenna 51, and a
personal computer (PC) 53 connected to the receiving unit 52. Therefore, the content displayed
on the psychology / ambient environment display unit 47 is displayed on the personal computer
53 at home 5. In some cases, it may be transmitted to the wristwatch type psychology monitor 3
to notify a person wearing the wristwatch type psychology monitor 3 of an alarm.
[0049]
According to the mental state recognition system according to the second embodiment of the
present invention, it is possible to simultaneously and continuously monitor and monitor the
physical and mental state of the person wearing the wristwatch type psychological monitor 3 and
the surrounding environment. For example, if you are rushing in the rain to a destination in the
city, the sensor signals the sound of rain, the sound of your own running, the noise of a city
(traffic noise, traffic noise), the heart beat that sounds loud And the frequency component of the
04-05-2019
22
large breathing sound should be included.
[0050]
On the other hand, when dreaming of a pleasant schedule of the weekend while drinking coffee
slowly in a quiet room, the alpha wave component (8 to 13 Hz) of body surface micro vibration
will be observed notably. In addition, when taking a walk in the woods in a relaxed mood, at the
same time as the body surface minute vibration with many components of α wave, sound waves
(sounds from trees, song of birds, etc.) of forest specific high frequency region are observed. It
will As described above, by continuously measuring the vibration in the high frequency band
range, it is possible to simultaneously and continuously monitor and monitor the mental
condition, the health condition, and the surrounding environment of a person wearing the
wristwatch type psychological monitor 3 . That is, it is possible to perform health monitoring and
safety monitoring simultaneously in real time.
[0051]
The bats, which seem to fly silently, are flying with echolocation and echolocation all the while
constantly emitting distinctive positioning sounds. The sound is almost totally inaudible because
it is an ultrasonic wave higher than the 20 KHz that we can hear. Also, even though the dolphins
are not so sharp in vision, fine obstacles can be avoided sharply. This is because it has a high
degree of ecolocation capability using ultrasound. The dolphin emits a pulse-like ultrasonic wave
called a click sound from the vocal organ near the nasal passage, detects the object from the time
and direction when the reflected sound returns, and communicates with friends, Understand the
situation of The ultrasound emitted from the vocal organ is amplified and focused at an organ
called "melon" inside the forehead, and the brain analyzes the reflected sound, and the distance
to the target, the size, and so on. It is a system to understand even the texture. The "melon" is a
fat body, and the bones of the elongated jaw are concave like a parabolic antenna. The fat body
acts as an acoustic lens, focusing the click sound that spreads in all directions, and by reflecting it
with a parabolic bone, it emits highly directional ultrasound. The developed brain and
sophisticated ultrasound radars make it possible for dolphins to capture the underwater world as
a detailed stereo image. The eco-location of dolphins just plays the role of an active sonar of the
submarine. The third vibration sensor S3 of the wristwatch-type psychology monitor 3 according
to the second embodiment of the present invention detects such vibration of ultrasonic waves
higher than 20 KHz, and an eco-location system similar to bats and dolphins. It is possible to
build
04-05-2019
23
[0052]
The mental state recognition system according to the second embodiment of the present
invention transmits all of the vibration signals to the data analysis device 4 in real time while the
person wearing the wristwatch type psychology monitor 3 is moving. Can provide safety or
health warnings based on real-time frequency analysis and spectral shape assessment. For
example, if the heart rate or breathing rate is abnormally high, a warning is issued. In addition,
when coma attacks while driving a car, a characteristic peculiar to sleep appears in the frequency
spectrum pattern of body surface minute vibration, and at the same time, if the in-car vibration
spectrum is also observed, the center will issue a warning. Sleep-specific changes in body surface
microvibrations include frequency reductions of body surface microvibrations and relative
reductions in the intensity of α, β, and ε waves. In the same way, it is possible to prevent
snoozing over in the train when returning home. On the other hand, when personally storing data
and performing health management and action recording, the vibration signal is sent to the
personal computer 53 at home 5 and the frequency analysis built in the personal computer 53
when necessary You may request that the software understand the contents.
[0053]
(Other Embodiments) As described above, although the present invention has been described by
the first and second embodiments, it is understood that the statements and drawings that form a
part of this disclosure limit the present invention. should not do. Various alternative
embodiments, examples and operation techniques will be apparent to those skilled in the art
from this disclosure.
[0054]
In the description of the first and second embodiments already described, the wristwatch-type
psychology monitor has been exemplified, but body surface micro-vibration is not limited to the
wrist as shown in FIG. 2 and FIG. Measurement is also possible for the right tibia, left tibia, etc.
Although illustration is omitted, body surface minute vibration can be measured similarly in the
upper abdomen, lower abdomen and the like. Furthermore, as shown in FIG. 4 and FIG. 5,
measurement is also possible at the top of the head. Therefore, the psychology monitor according
to the present invention can adopt various psychology monitors such as a ring type, a necklace
type, a corset type, a headgear type, etc. in addition to the wristwatch type psychology monitor
04-05-2019
24
described in the first and second embodiments. is there. In this case, a package of the first
frequency vibration sensor S1 of the first embodiment or a package in which the first vibration
sensor S1, the second vibration sensor S2, and the third vibration sensor S3 of the second
embodiment are integrated. It is preferable to make it into a curved shape that conforms to the
shape of the human body part to be worn, so that it can be in close contact with the human body.
In particular, in the case of a ring type, it is preferable to configure the entire package as a ring
and to make the size of the ring fit to the thickness of the individual's finger. Therefore, it is
preferable that the package of the vibration sensor used for the ring-type psychology monitor is
made of a relatively soft metal or the like so that the size can be easily changed.
[0055]
In addition, the same person wears a plurality of psychology monitors such as a watch type, a
ring type, a necklace type, a corset type, a head gear type, etc., and the selection signal generator
2 and the data analysis device 4 If you try to receive and analyze the signal at the same time,
more accurate monitoring is possible.
[0056]
Also, if it is always applied to the sick and elderly people in a state of lying down, a psychology
monitor provided with a first frequency vibration sensor S1 for measuring body surface minute
vibration on a part of a bed, a bed or a pillow is configured You may.
Furthermore, in a certain case, it is also possible to use a psychometric monitor in which the first
frequency vibration sensor S1 is embedded inside the human body (for example, inside the
pelvis).
[0057]
In the second embodiment of the present invention, a structure is disclosed in which the first
vibration sensor S1, the second vibration sensor S2, and the third vibration sensor S3 are
integrated on an n-type silicon substrate 85 (see FIG. 10). . However, the first vibration sensor S1,
the second vibration sensor S2, and the third vibration sensor S3 may be integrated on a p-type
silicon substrate. In this case, the p-type and n-type in FIG. 10 may be reversed.
04-05-2019
25
[0058]
Thus, it is a matter of course that the present invention includes various embodiments and the
like which are not described herein. Accordingly, the technical scope of the present invention is
defined only by the invention-specifying matters according to the scope of claims appropriate
from the above description.
[0059]
As described above, according to the mental state recognition system of the present invention,
human mental state (mental state) can be monitored (monitored) in real time by a simple method.
[0060]
Also, according to the mental state recognition system of the present invention, the mental state
(mental state), health state and environmental state (safety state) of a person traveling on a
remote place etc. can be monitored simultaneously and continuously. .
[0061]
Furthermore, according to the mental state recognition system of the present invention,
management and behavior records regarding the mental state (mental state), health and safety of
each individual can be easily stored.
In addition, it is possible to receive the diagnosis of a specialist such as a doctor and obtain
advice as needed.
[0062]
Furthermore, according to the mental state recognition system of the present invention, various
devices and facilities can be controlled without being limited to manual operation and voice
input, and an input human interface having extreme convenience is provided. I can do it.
[0063]
Furthermore, according to the mental state recognition system of the present invention, it is
04-05-2019
26
possible to provide an input human interface that is extremely useful even when the body is in an
inconvenient situation.
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27
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