JPS59140133A - Doze prevention device - Google Patents

Abstract

PURPOSE:To eliminate the troublesome fitting operation of a doze detection means and improve the practical effectiveness by providing a detection means of detecting the collapse of posture due to a doze on a fitting member capable of being fitted to an ear and generating an alarm by its output. CONSTITUTION:An ear ring 1 as a fitting member is formed with an electric circuit storage section 2 and an earphone 3 in one body by use of plastics, etc. A pair of permanent magnets 5, 6 are apart from each other below the ear ring 1, and yokes 7, 8 are fitted so as to pinch individual permanent magnets 5, 6. Reed switches 9, 10 are fitted between both magnets 5, 6, and a ball 11 made of soft magnetic material is rotatably housed to constitute a detection means. When in use, the above ear ring 1 is fitted to the driver's ear; when the driver dozes and his head is tilted forward or backward, the ball 11 is rotated and the reed switch 9 or 10 is closed, then an alarm sound is generated from the earphone 3.

Description

[Detailed description of the invention] The present invention is directed to, for example, preventing drowsy driving.

The present invention relates to an anti-friction device.

In recent years, with the spread of automobiles, traffic accidents caused by drowsy driving have been occurring frequently, and there is an urgent need for countermeasures to prevent such accidents, but so far no decisive measures have been taken, and drivers are I just left it to my own awareness. However, when driving on a monotonous road at night, the sense of danger diminishes and the driver tends to fall asleep.

Therefore, the present invention provides a dozing prevention device that measures the collapse of posture caused by dozing off and issues an alarm, thereby preventing disasters caused by dozing off, particularly traffic accidents caused by dozing off at the wheel.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes an ear ring made of plastic or the like, which constitutes a mounting member, and is integrally molded with a storage part 2 having a circuit structure to be described later and an earphone 3. 4 is a projection for operating a microswitch which will be described later. A detection means is built into the lower part of the ear ring 1 as shown in FIG. In the same figure, 5 and 6 are permanent magnets,
7 and 8 are yokes, 9 and 10 are reed switches, and 11 is a ball made of soft magnetic material.

FIG. 4 shows the circuit configuration stored in the storage section 2, with 12
1 is an alarm signal generating circuit, 16 is a transistor, and 14 is a speaker, which constitute a notification means. 15
1 is a power source, and 16 is a microswitch operated by the operating projection 4 shown in FIG.

The ear ring 1 having the above structure is worn on the ear (indicated by a single dot) as shown in FIG. Then, the projection 4 is pushed to close the microswitch 16 shown in FIG. If the reverser's posture is normal, the ball 11 will be in the position shown in FIG. 6, and the reed switches 9 and 10 will remain open. When the driver falls asleep and his head tilts forward or backward, the ball 11 rolls between the yokes 7 and 7 or between the yokes 8 and 8, and the reed switch 9 or 10 is closed. As a result, the earphone 3 generates the i' warning sound.

By the way, the detection means is not limited to the one described above, and for example, one such as shown in FIG. 6 may be used. In the same figure, 17 is a leaf spring, 18 is a contact piece, and they are attached to the fixed part 29 by u1.
It's a dress. A weight 20 made of conductive material is fixed to the tip of the plate ridge 17.

When the above configuration is tilted at a predetermined angle in the direction of arrow A, the weight 20
The leaf spring 17 bends due to the weight of the contact piece 1, and the contact point 21
Contact with 8.

Furthermore, any other device that detects the posture, such as a water hook contact switch, may be used.

Note that in the above embodiment, a case was described in which the alarm sound is generated only while the switch for detecting the posture is closed.
The present invention is not limited to this, and even if the posture detection switch is momentarily closed, the alarm sound may be generated for a preset time. In this case, for example, a circuit configuration as shown in FIG. 7 is used. In the figure, 22 is a crystal oscillator, 23 is a frequency divider, 24 is an attitude detection switch as described above, 25 is a pulse generating means, and 26 is a gate circuit. 27 is an amplifier, 28 is a speaker, and 29 is a resistor.

In the above configuration, the attitude detection switch 24 is
When the pulse generating means 25 closes as shown in FIG.
Time 1. The settings are such that a pulse with a width of . This pulse opens the gate circuit 26, and an alarm signal is generated at its output as shown in FIG. 8C, and an alarm sound is generated from the speaker 28.

In this way, even if the posture detection switch 24 is operated momentarily, an alarm sound sufficient to wake the driver from sleep can be obtained.

Further, in the above example, instead of the pulse generating means 25,
As shown in FIG. 10, when the posture detection switch 24 is closed for a time t2 as shown in FIG. 9A, the timer 30 operates as shown in FIG. 9B and generates a pulse. , it may be set to generate an alarm sound as shown in C in the same figure. According to this, even if the driver momentarily looks down when running over an instrument or the like, no warning sound is generated.

The notification means for issuing the alarm is not limited to the above-described one, and a buzzer or the like may be used.

As described in detail above, according to the present invention, since the system detects the collapse of posture due to dozing off and issues an alarm, disasters caused by dozing off, especially drowsy driving, can be prevented, and this contributes greatly to society. It is.

Furthermore, when a driver feels that there is a risk of drowsy driving due to his or her own level of mental and physical fatigue, all that is required is to attach the mounting member to the ear, and there is no need for any troublesome installation operations, making it extremely convenient. be.

Moreover, if the alarm is issued for a predetermined period of time based on the output of the detection means, it is possible to issue a sufficient alarm to wake up the driver even if the driver's posture momentarily collapses.

Further, if the alarm is issued only when the output of the detection means continues for a preset amount or more, no alarm will be issued even if the driver momentarily loses his posture to look at the instruments or the like.

[Brief explanation of drawings]

Fig. 1 is a front view showing one embodiment of the present invention, Fig. 2 is a left side view of Fig. 1, Fig. 3 is a sectional view taken along the line m-■ in Fig. 2, and Fig. 4
The figure is an electric circuit diagram showing an example of the circuit configuration.
An explanatory diagram showing the structure shown in the figure worn on the ear, FIG. 6 is a front view showing another example of the detection means, FIG. 7 is an electric circuit diagram showing another embodiment, and FIG. FIG. 9 is a time chart for explaining the operation, and FIG. 10 is an electric circuit diagram of still another embodiment. Figure 5 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] A dozing prevention device comprising: an attachment member that can be worn on the ear; a detection means for detecting posture collapse due to dozing on the attachment member; and a notification means for issuing an alarm based on the output of the detection means.