JPH09635A - Relaxation system - Google Patents

Abstract

PURPOSE: To surely and effectively provide sleep and awakening for relaxation. CONSTITUTION: The eye electric potential of a person is detected by a sensor 101, and then, based on the signal of that eye electric potential, a NON-REM sleep or a REM sleep is judged by a discriminating part for NON-REM 103 or for REM 104 respectively. Then, in the case of NON-REM sleep, a stimulation for inducing sleep is generated by a speaker 107 through a sleep inducing part 105 while the strength of the stimulation is controlled. In the case of REM sleep, a stimulation for promoting awakening is generated by a speaker 107 through an awakening part 106. As a result, after going to sleep, a person is led to a deep sleep by the stimulation for inducing sleep; then, coming to a light sleep state subsequently in REM sleep, the person is pleasantly awaken with the awakening stimulation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relaxation system which provides a user with comfortable sleep and wakefulness.

[0002]

2. Description of the Related Art Conventionally, as a system of this kind, not only one-sidedly giving sound, light, etc. as a stimulus to a user but also clarifying its effect, for example, Japanese Patent Laid-Open Publication No.
A drowsiness prevention device disclosed in Japanese Patent Laid-Open No. 3-54173 is known. As shown in FIG. 23, the biorhythm measuring device 30 measures the biorhythm of the user, and the biorhythm determining device 31 determines the biorhythm. Then, based on the judgment output, the relaxation stimulus controller 32 controls the stimulus given to the user from the relaxation stimulus generator 33.

[0003]

However, since the above-mentioned prior art uses the change in the user's response to a preset stimulus as a criterion for determining whether or not the user is relaxed, it is clear whether or not the user is really relaxed. There was a problem that I didn't understand.

The present invention has been proposed in view of the above-mentioned conventional problems, and an object of the present invention is to provide a relaxation system capable of reliably and effectively giving sleep for relieving tension.

[0005]

In order to achieve the above object, the invention described in claim 1 is, as shown in FIG. 1, an electro-oculography detecting means 1 for detecting electro-oculogram of a person, and the electro-oculography detecting means 1. NON-R that determines a NON-REM sleep state based on the low-frequency component of the electro-oculography signal detected by the potential detection means 1
REM based on the high-frequency component of the electro-oculography signal detected by the electro-oculography detecting means 2 and the electro-oculography detecting means 2.
A sleep stimulus generation unit that generates a stimulus that promotes sleep based on the determinations of the REM sleep state determination unit 3 that determines the sleep state and the NON-REM sleep state determination unit 2, and that can change the intensity of the stimulus. 4 and awakening stimulus generating means 5 for generating a stimulus for promoting awakening based on the judgment of the REM sleep state judging means 3.

According to a second aspect of the present invention, an electro-oculography detecting means for detecting the electro-oculography of a person and N based on a low frequency component of the electro-oculography signal detected by the electro-oculography detecting means.
NON-REM sleep state determining means for determining an ON-REM sleep state, and sleep capable of generating a stimulus that promotes sleep based on the determination by the NON-REM sleep state determining means, and changing the strength of the stimulus. And a stimulus generating means.

According to a third aspect of the present invention, R based on the electro-oculography detecting means for detecting the electro-oculography of a person and the high frequency component of the electro-oculography signal detected by the electro-oculography detecting means.
It is provided with REM sleep state determining means for determining the EM sleep state and awakening stimulus generating means for generating a stimulus for promoting awakening based on the determination by the REM sleep state determining means.

Further, the awakening stimulus generation means includes an information storage means for storing time information of the sleep state of the user,
It is possible to change the occurrence time of the awakening stimulus based on the awakening time information calculated from the sleep state time information.

Alternatively, the arousal stimulus generation means sets an arbitrary REM sleep frequency in advance, and the user's sleep is set to the R level.
A stimulus that promotes arousal may be generated when the number of EM sleeps is reached.

The invention according to claim 6 is mounted on a vehicle, and a door lock switch, a parking brake switch and a system switch of the vehicle are connected in series, and the door lock switch, the parking brake switch and the system switch are connected. Is activated when is turned on.

[0011]

As shown in FIG. 2, human sleep is classified into REM sleep that does not accompany rapid eye movement (Rapid Eye Movement) and exhibits brain waves equivalent to that at the time of awakening, and other NON-REM sleep. It is roughly divided into. And
After falling asleep, first NON-REM sleep, then RE
M sleep. Here, REM sleep is considered to be sleep for resting the body, and since the sleep depth is shallow, when awakening in this state, even when the sleep time is relatively short, it is possible to wake up refreshingly. NON-REM sleep is considered to be sleep for resting the brain, and the sleep depth changes in four stages, but in this state, it is difficult to wake up even if the sleep time is sufficient. On the other hand, the electro-oculogram showing the human eye movement is
Since it has a characteristic frequency component distribution in each of the awake state, the NON-REM sleep state, and the REM sleep state,
By determining the sleep state based on the frequency component distribution of the electro-oculogram and controlling the stimulus for promoting sleep and the stimulus for promoting awakening, it is possible to provide comfortable sleep and sleep accompanied by awakening.

Therefore, as shown in FIG. 3, the invention according to claim 1 causes sleep stimulus generation means 4 to generate sleep stimulus at the time of awakening to lead to sleep. And NON-REM
At the beginning of the sleep state, a stimulus that promotes sleep is given, and the stimulus is gradually weakened to suppress the sleep stimulus so that sleep is not disturbed by the sleep stimulus itself, leading to a deeper sleep state. After that, based on the low frequency component or the high frequency component of the electro-oculography signal detected by the electro-oculography detection means 1, the NON-REM sleep state determination means 2 or R
N-REM sleep or R by the EM sleep state determination means 3
Determine if EM sleep. Then, the RE that has passed the predetermined time
During the M sleep, since the wakefulness stimulus generation means 5 gives a stimulus for awaking the user, it is possible to wake up comfortably and obtain effective sleep.

According to the second aspect of the present invention, the sleep stimulus generation means generates sleep stimulus at the time of awakening to lead to sleep. When the NON-REM sleep state determining unit determines NON-REM sleep, the sleep stimulus generating unit generates a stimulus that promotes sleep while controlling the intensity of the stimulus to the user based on the determination. You can get a comfortable sleep.

Further, according to the third aspect of the invention, when the REM sleep state determining means determines REM sleep during sleep, the wakefulness stimulating means gives a stimulus for awaking, so that the user can wake up comfortably. it can.

Further, according to the invention described in claim 4, while the user is sleeping, the information storage means calculates the awakening information from the sleep time information, and the awakening stimulus is generated based on the awakening information, which is comfortable. You can wake up when you wake up with sleep.

Further, in the invention according to the fifth aspect, since the stimulus for awaking is generated after the preset number of REM sleeps has elapsed, it is possible to surely get sleep and wake up comfortably.

The invention according to claim 6 is mounted on a vehicle, and a door lock switch, a parking brake switch and a system switch of the vehicle are connected in series, and the door lock switch, the parking brake switch and the system switch are connected. Since it is activated when is turned on, it is possible to sleep with peace of mind.

[0018]

FIG. 4 is a block diagram showing the structure of the first embodiment. An amplifier 1 for the sensor 101 for measuring the human electro-oculogram
02 is connected, and the NON-REM sleep determination unit 103 and the REM sleep determination unit 104 are connected to the amplifier 102. Then, the sleep inducing unit 105 that generates a stimulus that promotes sleep by the output to the NON-REM sleep determining unit 103.
However, the REM sleep determination unit 104 is also connected to the wakeup unit 106 that generates an alarm for awaking by its output, and the speaker 107 issues a sound stimulus or a wakeup alarm by a signal from the sleep induction unit 105 or the wakeup unit 106. Is configured. In this case, the user is seated on the chair 108 so as to maintain a relaxed posture, and the speaker 107 is installed at a position close to the ear. Here, the NON-REM sleep determination unit 103, the REM sleep determination unit 104, the sleep induction unit 105, and the awakening unit 106 are configured by a microprocessor.

As shown in FIG. 5, the sensor 101 is mounted on the eye mask 125 at the position between the eyebrows and the outer part of both eyes, so that the effect of blocking the external light can be obtained simultaneously with the detection of the electro-oculography.

The NON-REM sleep determination section 103 is connected to the amplifier 102, is connected to the low-pass filter 109 which passes only the frequency component below a preset frequency, and is connected to the low-pass filter 109, and integrates the passed frequency component. It is composed of an integrator 110 and a comparator 111 which is connected to the integrator 110 and compares the output of the integrator 110 with the threshold value Ith1.

Similarly, the REM sleep determination unit 104 is connected to the amplifier 102 and is connected to the high-pass filter 112 that passes only the frequency component having a frequency higher than a preset frequency, and the high-pass filter 112 is integrated to integrate the passed frequency component. And an integrator 113 that is connected to the integrator 113 and compares whether the output of the integrator 113 reaches the threshold value Ith2.

The sleep inducing section 105 has a sleep stimulus control block 115 connected to the comparator 111 of the NON-REM sleep determining section 103, and a sleep stimulus generating block 116 which receives the control signal and generates a stimulus for promoting sleep. And a sleep stimulus generation block 116 and a speaker 107.
And are connected.

The awakening unit 106 is a REM sleep determination unit 104.
Alarm control block 11 connected to the comparator 114 of the
7, an alarm generation block 118 that generates an alarm for awaking in response to the control signal and an alarm control block 117, and a wake-up time setting block 119 for presetting a desired wake-up time of the user, and The alarm generation block 11 includes a timer 120.
8 and the speaker 107 are connected.

The operation of this configuration will be described with reference to the flow charts shown in FIGS. FIG. 6 is a flowchart showing the generation and control of sleep stimuli. First,
In step 131, the sleep induction unit 105 is activated. In this case, as shown in (a) of FIG. 10, a sound stimulus (sleep stimulus) that prompts sleep from the speaker 107 in the awake state.
Is emitted at the stimulus intensity of the initial value Pi. This stimulus leads the user to sleep.

Under the occurrence of this sleep stimulus, the NON-REM sleep determination section 103 detects whether or not it is in the NON-REM sleep state according to the process shown in the flowchart of FIG.

When humans shift from awakening to sleep, N
Enter a sleep state called ON-REM sleep. FIG. 11 (a) shows an example of an electro-oculogram during awakening and NON-REM sleep.
And shown in (a) of FIG. Fig. 11 shows the electro-oculogram during awakening.
As shown in FIG. 12A, a fine pulse-like waveform is shown, while the electro-oculogram in the NON-REM sleep state has a smooth sinusoidal waveform with a low frequency as shown in FIG. Indicates. When this electro-oculogram is subjected to frequency analysis, it has a frequency component of 1 to several Hz from 1/10 order when awake, and a frequency distribution whose main component is a frequency of about 0.2 to 0.3 Hz during NON-REM sleep. Becomes By paying attention to the frequency component of this electro-oculogram, it becomes possible to detect NON-REM sleep.

The NON-REM sleep detection will be described with reference to the flowchart shown in FIG. First, in step 141, the cutoff frequency f input to the low-pass filter 109 is input.
The frequency components above cs are removed. That is, the amplifier 102
1 is input to the low-pass filter 109, the output of FIG.
The waveforms shown in (b) of 1 and (b) of FIG. 12 are obtained. This is based on the cut-off frequency fcs of the low-pass filter 109 set in advance, and the pulse-like fine movement having a frequency component higher than that is used as the low-pass filter 10
This is because it is removed by 9. Also, the cutoff frequency fc
This is because the sine wave-like gentle movement composed of frequency components equal to or lower than s passes through the low-pass filter 109 as it is.

In step 142, the frequency component passed through the low pass filter 109 is integrated by the integrator 110 and output. In step 143, the comparator 11
According to 1, it is checked whether it is NON-REM sleep state. That is, as shown in (c) and (d) of FIG. 11 and (c) and (d) of FIG. 12, it is checked whether the output of the integrator 110 during the reference time tb1 reaches the threshold value Ith1. . Here, Ta and Ts are the times until the output of the integrator 110 exceeds the threshold value Ith1. When the NON-REM sleep state is detected in the check in step 143, it is determined that the user has fallen asleep, and step 14
In step 4, the ≠ 0 signal is output to the sleep inducing unit 105. NON-
When the REM sleep state is not detected, a = 0 signal is output to the sleep inducing unit 105 in step 145. The above steps 141 to 145 constitute the NON-REM sleep state determining means 2 of the invention.

Next, returning to FIG. 6, the operation of sleep stimulus generation will be described. NON-REM sleep state determination unit 103
The sleep inducing unit 105 executes the following process based on the result of the determination. First, in step 131, as described above, when the sound stimulus that promotes sleep is emitted from the speaker 107 to lead to the sleep state, in step 132, the comparator 111 checks whether or not the sleep state is the NON-REM sleep state. . This NON-REM sleep check is as described in steps 141 to 145.

By checking in step 132, NON-R
If it is not EM sleep, the process is repeated until it becomes NON-REM sleep. After entering NON-REM sleep and falling asleep, the process proceeds to step 133, and the sleep stimulus control block 115 repeats the sleep stimulus intensity Ps while weakening the sleep stimulus intensity by Pd at each time interval Tt. Controlled by. This state is shown in FIG. In this case, in step 134, while checking whether or not the stimulation intensity has reached the preset intensity Pe, while the sleep stimulation does not reach the intensity Pe, in step 135, the sleep stimulation generation block 116 causes the sleep stimulation signal to be generated. Is issued, and in step 136, the speaker 107
Produces a stimulating sound. Then, the process returns to step 133 and is repeated until the sleep stimulus reaches the intensity Pe. When the sleep stimulation intensity Ps reaches the intensity Pe, in step 135, the operation of the sleep induction unit 105 is stopped. As a result, the sleep stimulus itself functions so as not to disturb the sleep of the user who has transitioned to the NON-REM sleep state. The above steps 133 to 135 constitute the sleep stimulus generation means 4 of the invention.

Next, R in the REM sleep determination unit 104
The EM sleep detection will be described with reference to the flowchart shown in FIG. REM sleep that appears after NON-REM sleep is
As shown in FIG. 13 (a), the NON-R is accompanied by rapid eye movement with a center frequency of several Hz or higher.
Separation from EM sleep is possible. Therefore, step 15
At 1, the frequency components below the cutoff frequency fch input to the high pass filter 112 are removed. Amplifier 102
1 is input to the high pass filter 112, the output of FIG.
A waveform as shown in (b) of 3 is obtained. This is based on the cut-off frequency fch of the high-pass filter 112 set in advance, and is a NON-R having a frequency component lower than that.
A large sinusoidal movement of the electro-oculogram during EM sleep is removed by the high-pass filter 112, and the cut-off frequency f
This is because the pulse-like fine movement during the REM sleep, which consists of frequency components of ch or more, passes through the high-pass filter 112 as it is.

In step 152, the frequency component passed through the high pass filter 112 is integrated by the integrator 113 and output. In step 153, the comparator 11
According to 4, it is checked whether or not it is in the REM sleep state. That is, as shown in (c) and (d) of FIG.
It is checked whether the output of the integrator 113 between b2 reaches the threshold value Ith2. Here, Ts is the integrator 11
It is the time until the output of 3 exceeds the threshold value Ith2. When the REM sleep state is detected in the check in step 153, the awakening unit 106 is detected in step 154.
The determination output R (≠ 0) signal is output to. When the REM sleep state is not detected, the = 0 signal is output to the awakening unit 106 in step 155. The above steps 151 to 155 form the REM sleep state determining means 3 of the invention.

Next, the operation of generating the awakening alarm will be described with reference to the flowchart shown in FIG. That is, the following process is executed by the awakening unit 106 based on the determination result of the REM sleep state determining unit 104. First, as shown in (b) of FIG. 10, the awakening unit 106 starts operation at a time Tw preset by the timer 120 before the desired wake-up time Th preset by the user. In step 161, the alarm control block 117 checks whether the difference between the desired wake-up time Th and the current time Tc is less than or equal to the set time Tw of the timer 120, and the check is repeated until it becomes less than or equal to the set time Tw.

When the difference between the desired wake-up time Th and the current time Tc becomes equal to or less than the timer set time Tw in the check in step 161, the alarm control block 117 of the wake-up part 106 operates in step 162. Then, step 163
At, the alarm control block 117 checks whether the current time Tc has reached the desired wake-up time Th. At step 163, the desired wake-up time Th
If not, the process proceeds to step 164, it is checked by the alarm control block 117 whether there is the judgment output R of the REM sleep state judging unit 104, and the judgment output R
While there is not, the process returns to step 163 and the process is repeated. Then, the determination output R of the REM sleep state determination unit 104
If there is, the process proceeds to step 165 at that time point, and a wake-up alarm signal is generated by using the determination output signal as a trigger, and an alarm sound is generated by the speaker 107 in step 166.

When the desired wake-up time Th is reached without the determination output of the REM sleep state determination unit 104 in the check in step 163, the process proceeds to step 165, and as shown in FIG. The alarm wakeup alarm signal is generated by the alarm control block 117 using the desired wakeup time Th after Tw as the alarm generation time Ta, and an alarm sound is generated by the speaker 107 in step 166 to forcibly awaken. Step 16 above
1-165 constitute the awakening stimulus generation means 5 of the invention.

By the above operation, in the light sleep state, the stimulus that promotes sleep leads to deep sleep, and when the light sleep state is reached, the awakening can be promoted to provide refreshing awakening, which is effective for the user. Can be given a rest.

In the present embodiment, the sleep stimulus is presented to the user through the speaker as a sound stimulus having a relaxation effect. However, a vibration mechanism is provided in the seat so that the seat vibration as seen in Bodesonic can be obtained. May be given. The wakeup alarm includes light, vibration, etc. in addition to sound, and is not particularly limited as long as it wakes up. Furthermore, the NON-REM sleep determination unit 103, R
EM sleep determining unit 104, sleep inducing unit 105, and awakening unit 1
The 06 may be configured in a discrete manner instead of the microprocessor.

FIG. 14 is a block diagram showing the configuration of the second embodiment. In the second embodiment, in addition to the configuration of the first embodiment, an output side of the NON-REM sleep determination unit 103, an output side of the REM sleep determination unit 104, and an alarm control block 117 ′ of the awakening unit 106 ′ are provided. A sleep information storage calculation unit 201 is provided between them. This sleep information storage calculation unit 201
Is constituted by a microprocessor including a storage block 202 and a calculation block 203, and is a NON-REM.
The determination outputs of the sleep determination unit 103 and the REM sleep determination unit 104 are connected so as to be input to the storage block 202. Other configurations are the same as those in the first embodiment.

The operation of the sleep information storage / calculation unit 201 will be described below with reference to the flow chart of FIG. Step 2
In 11, the storage block 202 stores the occurrence time and duration of the REM sleep detected by the REM sleep determination unit 104. By repeating this operation a plurality of times, the REM sleep occurrence time Tni in one sleep process
And the duration Tdi are stored. Then, step 21
2, in accordance with the plurality of REM sleep information stored in the storage block 202 by the calculation block 203,
The estimated REM sleep duration Tds is calculated. The above steps 211 to 212 form the information storage means of the invention.

Next, the operation of the second embodiment will be described with reference to FIG.
6, the flowchart shown in FIG. 17 and the diagram showing the timing of alarm generation shown in FIG. FIG.
6, step 221 in the flowchart of FIG.
~ Step 224 corresponds to step 1 in the first embodiment.
61 to step 164.

At the check in step 224, the judgment output R
If there is, the process proceeds to step 227, and in the alarm control block 117 ′, it is determined whether the desired wake-up time Th is included in the estimated REM sleep duration Tds after the occurrence of REM sleep calculated by the sleep information storage calculation unit 201. To check. When the check in step 227 indicates that the desired wake-up time Th is included in the estimated REM sleep duration Tds as shown in FIG. 18A, step 228
Proceed to. Then, the alarm control block 117 'generates an awakening alarm signal at the desired wake-up time Th.
Next, in step 229, an alarm sound is generated by the speaker 107 to forcibly awaken.

If the check in step 227 indicates that the desired wake-up time Th is not included in the estimated REM sleep duration Tds as shown in FIG. 18B, step 23
Go to 0. Then, the alarm control block 117 ′ generates a wake-up alarm signal with an alarm generation time Ta when the estimated REM sleep duration Tds has elapsed from the REM sleep generation time Tn, and in step 231, the speaker 107 is activated.
Generates an alarm sound and prompts awakening. This allows
Awakening in the REM sleep state can be promoted in a time close to the desired wake-up time Th. With the check in step 223, the current time Tc is the desired wake-up time Th without the judgment output R.
In step 225, the wake-up alarm signal is generated, and in step 226, the speaker 10
An alarm sound is emitted by 7 and forced to awaken.

In the first embodiment, when the REM sleep is detected, the alarm generation block 118 is activated immediately.
In this embodiment, the alarm occurrence time Ta is set to the desired wake-up time T
It can approach h. The sleep information storage / calculation unit 201 may have a discrete configuration instead of the microprocessor.

FIG. 19 is a block diagram showing the structure of the third embodiment. The third embodiment is provided with a wake-up unit 301 having a function of setting a desired REM sleep frequency instead of the wake-up unit 106 in the first embodiment.
That is, the awakening unit 301 includes an alarm control block 302 connected to the comparator 114, and an alarm generation block 30 that receives the control signal and generates an alarm for promoting awakening.
3 and a comparison block 304 is newly connected to the alarm control block 302, a REM number setting block 305 and a counter 306 are connected to the comparison block 304, and the counter 306 and the output side of the REM sleep determination unit 104 are connected. Are connected. Then, the user's desired REM sleep frequency is set by the REM frequency setting block 305, and R
The EM sleep frequency is counted by the counter 306, and the desired REM sleep frequency is compared with the counted REM sleep frequency by the comparison block 304, and when the desired REM sleep frequency is reached, a wakeup alarm is generated.

The operation of the awakening unit will be described with reference to the flowchart shown in FIG. First, the timer setting time Tw before the desired wake-up time Th preset by the awakening unit 301
To start operation. Then, in step 311,
The desired wake-up time Th is set by the alarm control block 302.
It is checked whether the difference between the current time Tc and the current time Tc is less than or equal to the set time Tw of the timer 120, and the check is repeated until it becomes less than or equal to the set time Tw. When the difference between the desired wake-up time Th and the current time Tc becomes equal to or less than the timer set time Tw in the check in step 311, the alarm control block 302 of the awakening unit 301 operates in step 312. Next, in step 313, the alarm control block 3
02, the determination output R of the REM sleep state determination unit 104
Check if there was.

When there is no judgment output R in the check in step 313, the process is repeated, and when the judgment output R is output, the process proceeds to step 314 and the counter 305 sets RE.
The number of occurrences of REM sleep detected by the M sleep state determination unit 104 is counted. Then, in step 315,
The comparison block 306 checks whether the counted REM sleep frequency CT reaches the desired REM sleep frequency ST set by the user. When the REM sleep frequency CT reaches the desired REM sleep frequency ST, step 316
Then, the alarm control block 302 generates a wake-up alarm signal, and in step 317, the alarm generation block 30
3 drives the speaker 107 to generate an alarm sound. When the REM sleep frequency CT does not reach the desired REM sleep frequency ST, the process returns to step 313 and the process is repeated.

According to the third embodiment, the alarm sound is always generated in the REM sleep state, and the awakening can be prompted in the light sleep state, so that the user can wake up in a refreshing state. The wake-up unit 301 may have a discrete configuration instead of the microprocessor.

FIG. 21 is a block diagram showing the structure of the fourth embodiment. The fourth embodiment is one in which the relaxation system in the first embodiment is mounted on a vehicle, and includes a sensor 101, an amplifier 102, a NON-REM sleep determination unit 103, a REM sleep determination unit 104, and a sleep induction unit 1.
05 and the awakening unit 106 are the same as those in the first embodiment.
The system switch 401, the door lock switch 402, and the parking brake switch 403 are connected in series, and are configured to operate when they are simultaneously turned on.

The operation of this configuration will be described with reference to the flowchart shown in FIG. First, step 411
In, the system switch 401 is turned on, the process proceeds to step 412, and it is checked whether the parking brake (PKB) switch 403 is turned on. If the parking brake switch 403 is not turned on in the check in step 412, the process is repeated. Parking brake switch 403 is ON
If the door lock switch 402 has been operated, the flow advances to step 413 to check whether the door lock switch 402 has been operated ON. If the door lock switch 402 is not turned on in the check in step 413, the process is repeated. When the door lock switch 402 is ON-operated, together with the system switch 401 and the parking brake switch 403 being ON-operated, the power supply system is connected to operate the system. Thereafter, step 414 executes the same processing as the flowcharts shown in FIGS. 6 to 9 in the first embodiment.

According to the fourth embodiment, it is particularly effective when used for stopping the vehicle and taking a break, for example, during long-distance driving. In that case, the door lock switch 402 and the parking brake switch 403 are used. Must be ON
Since it is operated, it can be used with confidence.

In this case, the sleep and waking stimuli can be emitted from an audio speaker installed in the vehicle. Further, in the fourth embodiment, the example in which the relaxation system in the first embodiment is applied to the vehicle is shown, but the relaxation system in the second and third embodiments can also be applied to the vehicle. Is.

In each of the above embodiments, the relaxation system having both the sleep induction section and the wakefulness section has been described. However, the system is configured by using either the sleep induction section or the wakefulness section, and each is comfortable. It is also possible to use a sleep system that promotes sleep or an awakening system that promotes comfortable awakening.

[0053]

As described above, according to the present invention,
After generating a stimulus that promotes sleep and leading to sleep, NON-
Determine whether REM sleep or REM sleep. And NON
-When in REM sleep, sleep stimuli are suppressed so that sleep is not disturbed by the sleep stimuli themselves. Alternatively, it controls the strength of the stimulus that promotes sleep, leading to a deeper sleep state. Further, during the REM sleep, since the user is stimulated to wake up, the user can wake up comfortably. Therefore, it is possible to sleep reliably and effectively.

Then, the awakening information is calculated from the sleep time information detected during sleep, and the awakening stimulus is generated based on the awakening information, so that a comfortable sleep that matches the sleep rhythm of the user is accompanied. You can wake up at the desired wake-up time.

After the preset number of REM sleeps has elapsed, by generating a stimulus for awaking, it is possible to take a desired sleep mode and wake up comfortably.

Further, when the vehicle is mounted on a vehicle, the system is operated for the first time by turning on all the door lock switch, parking brake switch and system switch connected in series, so that the user can feel secure and sleep well. Can be taken.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a diagram showing a human sleep pattern.

FIG. 3 is a flowchart explaining the operation of the present invention.

FIG. 4 is a block diagram illustrating a configuration of an embodiment.

FIG. 5 is a diagram illustrating components of an example.

FIG. 6 is a flowchart illustrating the operation of the embodiment.

FIG. 7 is a flowchart illustrating the operation of the embodiment.

FIG. 8 is a flowchart illustrating the operation of the embodiment.

FIG. 9 is a flowchart illustrating the operation of the embodiment.

FIG. 10 is a diagram showing the timing of occurrence of a wake-up alarm and changes in the intensity of sleep stimulation in the example.

FIG. 11 is a diagram showing output waveforms of components in the example.

FIG. 12 is a diagram showing output waveforms of constituent elements in the example.

FIG. 13 is a diagram showing output waveforms of constituent elements in the embodiment.

FIG. 14 is a block diagram showing a configuration of an example.

FIG. 15 is a flowchart illustrating the operation of the embodiment.

FIG. 16 is a flowchart illustrating the operation of the embodiment.

FIG. 17 is a flowchart illustrating the operation of the embodiment.

FIG. 18 is a diagram showing an alarm generation timing in the embodiment.

FIG. 19 is a block diagram showing a configuration of an example.

FIG. 20 is a flowchart illustrating the operation of the embodiment.

FIG. 21 is a block diagram showing a configuration of an example.

FIG. 22 is a flowchart illustrating the operation of the embodiment.

FIG. 23 is a block diagram showing a configuration of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Ocular potential detection means 2 NON-REM sleep state determination means 3 REM sleep state determination means 4 Sleep stimulus generation means 5 Awakening stimulus generation means 101 Sensor 102 Amplifier 103 NON-REM sleep state determination section 104 REM sleep state determination section 105 Sleep induction Part 106, 106 ', 301 Awakening part 107 Speaker 108 Chair 109 Low-pass filter 110, 113 Integrator 111, 114 Comparator 112 High-pass filter 115 Sleep stimulus control block 116 Sleep stimulus generation block 117, 302 Alarm control block 118, 303 Alarm generation Block 119 Wake-up time setting block 120 Timer 201 Sleep information storage / calculation unit 202 Storage block 203 Calculation block 304 Comparison block 305 REM sleep frequency setting block 306 Counter 01 system switch 402 door lock switch 403 parking brake switch

Claims (6)

[Claims] 1. An electro-oculogram detecting means for detecting an electro-oculogram of a person, and a NON-REM sleep state for judging a NON-REM sleep state based on a low frequency component of an electro-oculogram signal detected by the electro-oculogram detection means. Sleep based on the determination unit, the REM sleep state determination unit that determines the REM sleep state based on the high-frequency component of the electro-oculogram signal detected by the electro-oculography detection unit, and the determination by the NON-REM sleep state determination unit. A sleep stimulus generating means for generating a stimulating stimulus and capable of changing the strength of the stimulus; and an awakening stimulus generating means for generating a stimulus for awakening based on the judgment of the REM sleep state judging means. Relaxation system characterized by. 2. An electro-oculogram detecting means for detecting an electro-oculogram of a person, and a NON-REM sleep state for judging a NON-REM sleep state based on a low frequency component of the electro-oculogram signal detected by the electro-oculogram detection means. Determination means and the non-
A relaxation system comprising: a sleep stimulus generation unit that generates a stimulus that promotes sleep based on the determination made by the REM sleep state determination unit and that can change the intensity of the stimulus. 3. An electro-oculogram detecting means for detecting an electro-oculogram of a person, and a RE for determining a REM sleep state based on a high frequency component of an electro-oculogram signal detected by the electro-oculogram detecting means.
Relaxation characterized by comprising M sleep state determining means and awakening stimulus generating means for generating a stimulus for promoting awakening based on the determination of the REM sleep state determining means.
system. 4. The wakefulness stimulus generation means includes an information storage means for storing time information of the sleep state of the user, and a stimulus for awaking based on the wakeup time information calculated from the time information of the sleep state. The relaxation system according to claim 1, wherein: 5. The arousal stimulus generation means is preliminarily set to an arbitrary R.
The relaxation system according to claim 1 or 3, wherein the number of EM sleeps is set, and a stimulus that promotes awakening is generated when the user's sleep reaches the number of REM sleeps. 6. A door lock switch, a parking brake switch and a system switch of the vehicle mounted in a vehicle are connected in series, and the door lock switch, the parking brake switch and the system switch are turned on.
It operates when it is operated.
The relaxation system according to any one of items 1 to 5.