JPS5869576A - Sleeping preventing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dozing prevention device that rubs a person to prevent them from dozing off or to wake them up when they are in a state where they are likely to doze off.

Conventionally, when a person is working on something, especially when doing monotonous and long-duration work such as driving a car, the fatigue level varies depending on the individual, but in general, a person falls asleep or is in a state close to falling asleep1. Easy to get tired of.

These conditions include observation of brain waves using a cathode ray tube.

It has been relatively well researched. However, when it comes to devices that can actually prevent this, it is difficult to create special brainwave sensors, so it is difficult to accurately detect dozing off, and it is difficult to say that enough equipment has been developed.

Also, there are ways to bring yourself back from a dozing state to wakefulness, as it is impossible to pass an electric current directly into the brain, so you can apply physical stimulation to the body. However, the former tone had the disadvantage of exaggerating the method, and the latter had the disadvantage that the effect diminished as people got used to hearing the same tone all the time.

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional technology, and to provide a device that would be particularly useful in preventing falling asleep while driving a car. This is to make people's psychological state nervous, as if they don't know if a number change or something will happen, and thereby prevent them from dozing off or bring them back from a dozing state to an alert state. It is.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a dozing prevention device according to a first embodiment of the present invention. In FIG. 1, (1) is a switch, (2) is a timer activated by this switch, (3) 14+ is a random number generator that stores multiple sound signals internally and outputs them in any order. 14+ is a random number generator whose output is sent to the timer (2) and the waveform generator ( 31, and a random period generator that extracts the sound signal of the waveform generator (3) at random time intervals and in a random order from this random number generator (4), the timer (2), and the above-mentioned timer (2). Note that this random number generator (4) does not need to generate completely random numbers, as long as it generates numbers that can be considered random in practice. (5) is a controller. , timer 12)
It serves to send the desired waveform from the signal 1 from the waveform generator (3) to the amplifier (6). (7) is a speaker.

Figure 2 shows the waveform diagram of each part in Figure 1. Figure 1 (a) shows the on/off state of the switch (1), and Figure (b) shows the timer (
The internal signal of 2) is shown in the figure (cl is the timer (2) output,
Figure (d) shows the output of the waveform generator (31), and Figure (e) shows the output of the amplifier (6).

Next, the operation will be explained.

When the switch (1) is turned on, while the waveform shown in Figure 2 (a) is "high", the timer (2) generates a regular lock pulse with a constant cycle as shown in Figure 2 (b). . This timer (21) is modulated by the signal from the random number generator t41, and outputs a time-series signal of random rectangular pulses as shown in FIG. It stores various sound waveforms, such as a human voice A, a sudden loud sound B, and a sound C where a 1KHz signal lasts for 1 second. In addition to these, sounds of the same type are stored in order with the symbols E...

Specifically, this can be done by creating an IC in the form of an IC using voice synthesis technology, or by using a cassette deck that can drive the tape (into which various waveforms can be inserted). You may also use one with a tape attached.

Under the action of the random number generator t41, the waveform generator-31 randomly selects and outputs its contents. Figure 2 (e
1 shows how various waveforms selected inside the waveform generator (3) are selected as a series and extracted.

Here, the signals in (C) and (d) of the same figure are the controller (
Enter 5th place. Here, each time the rectangular pulse of the same figure (C) which was explained earlier is generated, the generated waveform from the single waveform generator (3) is sequentially extracted, and it is arranged in a random time series as shown in the figure (el). An electrical signal consisting of a combination of random waveform sequences is output.This waveform is processed so that it is output as sound from a normal acoustic signal amplifier (6) and then from a speaker (71). If you do this, for example, if you are half asleep at the wheel of a car, then suddenly there is a loud bang that frightens the driver.The situation continues with no sound at all. People become psychologically in a state of waiting, wondering when the next sound will come out.

Suddenly, I heard someone's voice yelling, "Wake up!" 121
．． Shimomen-sama's story is repeated. Such questions and answers gradually or at some point bring humans back into a state of wakefulness. This happens when we often go through our daily routine, and when we hear a loud noise, or when we are about to fall asleep, we wake up feeling uneasy when we hear some irregular ``rust'' sound. etc. can be seen.

As described above, according to the present invention, since the sound of a random content is arranged so that the sound is played at a random time, it is possible to prevent or eliminate falling asleep while driving a car.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a doze prevention IE device according to a first embodiment of the present invention, and FIG. 2 is a signal waveform diagram of each part of FIG. 1. +21141...Timer, random number generator (random period generator), +31...Waveform generator, (7)...
Speaker (sound output means).

Claims (1)

[Claims] (1) A waveform generator that stores multiple sound signals and can take them out in any order, and a random period generator that takes out the sound signals of the waveform generator in a random order at random time intervals. and audio output means for emitting the sound signal collected from the waveform generator as sound.