JPH09264977A - Awaking-time setting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the awaking-time setting device by performing awaking operation under the REM sleeping (light sleeping) state all the time, awakening a person and making it possible to awake a user with refreshing feeling. SOLUTION: This awaking-time setting device comprises the following parts. A polygraph 3 receives the voltage signal from an electrode 2 attached to a head part 1 of a user and measures the sleeping depth. A memory 4 stores the data of the sleeping depth outputted from the polygraph 3. A microcomputer 5 estimates the next REM sleeping time (hours) based on an awakening specifying time, the judged REM sleeping state and the present time obtained from a timepiece and determines the awakening time based on the comparison of the magnitude with the specified time (specified hours). An awaking mechanism 6 executes the awaking operation in accordance with the instruction of the microcomputer 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an awakening time setting device capable of comfortably awakening based on cerebral physiology when waking up.

[0002]

2. Description of the Related Art A conventional alarm clock has a mechanism for forcibly guiding a user from a sleeping state to an awake state by using an electronic sound, a bell sound or the like when a time designated by the user comes.
Whether you feel refreshed or uncomfortable when you awaken depends largely on whether you have enough sleep time or not, but it is known that there are other important factors.

From the viewpoint of cerebral physiology, as shown in FIG. 6, in human sleep, deep sleep (hereinafter referred to as non-REM sleep) and light sleep (hereinafter referred to as REM sleep) alternately appear periodically. Of these, while awakening during non-REM sleep tends to cause discomfort and fatigue, while RE
Refreshing easily occurs when awakening during M sleep. Note that RE
M sleep refers to rapid eye movement sleep. When the user is in the non-REM sleep state for the designated time and is awakened by the electronic sound, the user is more likely to wake up in discomfort. On the contrary, R
When awakened while in the EM sleep state, the user is more likely to wake up with a refreshing feeling.

[0004]

However, the conventional alarm clock has such a sleep state (REM) of the user.
Regardless of whether it is sleep or non-REM sleep), the user emits an electronic sound or the like to wake up when the designated time comes, so that the user sometimes wakes up during non-REM sleep and feels uncomfortable. There was a problem that the possibility of waking up was high.

The present invention has been made in order to solve the above-mentioned conventional problems, and an awakening time capable of awakening the user with a refreshing feeling by performing a wake-up operation while always in a REM sleep state. An object is to provide a setting device.

[0006]

In order to solve the above problems, the present invention has the following constitution. The present invention relates to a wake-up time setting device that wakes up a user based on a designated time, a clock that obtains the current time, a sleep depth measuring unit that measures the sleep depth of the user, and the measured sleep depth is a REM sleep state. Alternatively, based on the REM / non-REM sleep determination unit that determines which one of the non-REM sleep states, the designated time, the determined REM sleep state, and the current time obtained from the clock, the designated time and the predetermined relation REM
An awakening time setting device comprising: an awakening time determination unit that determines a sleep time as an awakening time; and an operation unit that awakens a user when the current time reaches the determined awakening time.

The sleep state can be known by analyzing the electroencephalogram, and thus the sleep depth can be measured. Therefore, the wake-up time setting device is equipped with a mechanism for monitoring the user's brain waves in real time or the like and grasping whether the user is in the REM sleep state or the non-REM sleep state.

When the user inputs a time specified by the user to wake up by this time into the awakening time setting device, the awakening time setting device preferably receives the last REM sleep that appears before the specified time. During the process, the user is awakened by electronic sound. Generally, as shown in FIG. 2, REM sleep and non-REM sleep are repeated in a cycle of 60 to 90 minutes, which means that the person awakens 30 to 45 minutes before the designated time on average, but the user feels refreshed. You can wake up with.

As shown in FIG. 1, the present invention determines whether the sleep depth is in a REM sleep state or a non-REM sleep state from a sleep depth signal from a sleep depth measuring unit such as an electroencephalogram detection circuit. To do. The awakening time is determined based on the specified time, the determined REM sleep state and the current time obtained from the clock, and when the current time reaches the determined awakening time, the awakening action (sound, vibration, light emission, etc.) is performed. ), Awaken the user.

[0010]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 3 shows a circuit block of the awakening time setting device according to the embodiment. As shown in FIG.
This awakening time setting device stores a well-known polygraph 3 that receives a voltage signal from an electrode 2 attached to a head 1 of a user (user) to measure a sleep depth, and sleep depth data output from the polygraph 3. The memory 4 is used to determine whether the measured sleep depth is in the REM sleep state or the non-REM sleep state, and based on the specified awakening time, the determined REM sleep state, and the current time obtained from the clock. , The next REM sleep time (time) is estimated, and a microcomputer (microcomputer) 5 that determines the awakening time from the comparison of the size with the specified time (specified time), and the alarm operation (sound, sound, It consists of a wake-up mechanism 6 that executes vibration, light, etc.). The wake-up time setting device has a time specifying function for specifying the time when the user tries to wake up, and the microcomputer 5 receives the specified time and also has the function of a clock.

In the awakening time setting device, when the user specifies and inputs a time required to wake up to this time, the last RE appearing before the specified time.
The alarm mechanism 6 is operated during M sleep.

A method of estimating the next REM sleep will be described below. Final R within specified time (specified time)
In order to activate the alarm mechanism 6 in the EM, it is necessary to estimate the time when the next REM sleep appears each time the REM sleep appears. This estimation is performed as follows.

When the time of the first REM sleep is t ₁ , the time t ₂ of the _second REM sleep can be estimated as t ₂ = 2 × t ₁ . The time of the second actual REM sleep is t ₂
Then, the time t ₃ of the _third REM sleep can be estimated as t ₃ = 2 × t ₂ −t ₁ .

[0014] In general, the actual time of REM sleep of the N-th and t _{N, N} + 1 th time of REM sleep is to _{t N + 1 = 2 × t} N -t N-1.

In the above estimation method, in principle, the first R
It is difficult to estimate the time when EM sleep appears. Therefore, the time when the first REM sleep appears is estimated by storing the data of the previous day or before in the memory. Further, in order to more accurately estimate the time when REM sleep appears, not only the REM sleep time obtained by the above equation, but also the REM sleep time stored in the memory on the previous day are taken into consideration as the actual estimated time. It can also be adopted.

Next, the operation of the awakening time setting device according to the embodiment will be described based on the block of FIG. 3, a flowchart executed by the microcomputer 5 of FIG. 4 in the form of a program, and a sleep depth measurement diagram of FIG. Note that A, B ... In FIG. 3 indicate signals and processes. FIG. 5A illustrates an example of determining the first REM sleep appearance time, and FIG. 5B illustrates an example of determining the second REM sleep appearance time. The user inputs the designated time t ₀ in advance (step 1). The REM sleep frequency N is initialized (step 2) and the sleep depth is measured (step 3). That is,
The sleep signal is measured by receiving the voltage signal (A) from the electrode 2. -> Sleep depth is measured by polygraph 3 (performed in real time) (B). → The sleep depth is stored in the memory 4 at regular intervals (about 5 minutes) (C: step 4). → The first REM sleep appearance time t _{1 on the} microcomputer 5
Is determined (D: steps 5 and 6).

→ In the memory 4, the REM sleep appearance time t ₁
Is stored (E: step 7). → The microcomputer 5 estimates the _second REM sleep appearance time t ₂ (t ₂ = 2 × t ₁ ) (F: step 8). → The above RE estimated by the microcomputer 5
The magnitude of the M sleep appearance time t ₂ and the designated time are compared (G: step 9). → As shown in FIG. 5A, the specified time t
_{If the} estimated REM sleep appearance time t ₂ is earlier than ₀ (step 9; Yes), the alarm mechanism 6 is activated (step 10) → end (H).

On the other hand, if the estimated second REM sleep appearance time t ₂ is later than the designated time t ₀ (step 9;
No), to determine the second REM sleep appearance time (step 11), the sleep depth measurement is repeated by the polygraph 3 again (A, B: step 3). → The sleep depth is stored in the memory 4 at regular intervals (about 5 minutes) (C: step 4). → The microcomputer 5 determines the _second REM sleep appearance time t ₂ (D: steps 5 and 6).

→ The second REM sleep appearance time t ₂ is stored in the memory 4 (E: step 7). → The microcomputer 5 further estimates the _third REM sleep appearance time t ₃ (t ₃ = 2 ×).
t ₂ -t ₁₎ to (F: Step 8). → Compare the magnitude of the REM sleep appearance time t ₃ estimated by the microcomputer 5 and the designated time t ₀ G: Step 9). → As shown in FIG. 5B, if the estimated REM sleep appearance time t ₃ is earlier than the designated time t ₀ (step 9; Yes), the alarm mechanism 6 is activated (step 10) → end (H) To do. → If the estimated REM sleep appearance time t ₃ is later than the specified time t ₀ (step 9; No), the sleep depth measurement is repeated by the polygraph 3.

[0020]

As described above, according to the present invention, it is possible to wake up the user with an exhilarating sensation by performing a wake-up operation while always in the REM sleep state.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an awakening time setting device of the present invention.

FIG. 2 is an explanatory diagram of a relationship between a designated time and an awakening time according to the present invention.

FIG. 3 is a block diagram illustrating a configuration and an operation of the awakening time setting device according to the embodiment.

FIG. 4 is an operation flowchart of the awakening time setting device of FIG.

5A is a diagram illustrating an example of determining the first REM sleep appearance time and FIG. 5B is a diagram illustrating an example of determining each REM sleep appearance time.

FIG. 6 is an explanatory diagram of a sleep depth.

[Explanation of symbols]

 1 User's head 2 Electrode 3 Polygraph 4 Memory 5 Microcomputer 6 Awakening mechanism

Claims (1)

[Claims] 1. A wake-up time setting device for waking up a user based on a specified time, a clock for determining the current time, a sleep depth measuring unit for measuring the sleep depth of the user, and the measured sleep depth is REM sleep. State or non-RE
REM / to determine which of M sleep states
A non-REM sleep determination unit, and R having a predetermined relationship with the designated time based on the designated time, the determined REM sleep state, and the current time obtained from the clock.
An wake-up time setting device comprising: an wake-up time determination unit that determines the EM sleep time as the wake-up time; and an operation unit that wakes up the user when the current time reaches the determined wake-up time.