KR19980076676A - Drowsiness preventer - Google Patents

Abstract

The present invention detects drowsiness of a person by regular head bowing;

If there is regularity of a certain time, it is judged to be drowsiness, and a cooler or a vibration motor is used as a means for temporarily eliminating this drowsiness;

When using a bus or a train, it is possible to wake up after selecting the expected time for a certain section so that the sleepiness does not pass the destination.

In case of drowsiness, the TIMER function allows the user to sleep for a certain period of time.

Therefore, the device of the present invention has the advantage that even the examinee or the driver can be purchased at a low price and can be easily portable to take a brief sleep on the go.

Description

Drowsiness preventer

1 is an external view of an embodiment of the present invention.

2 is an internal configuration diagram of the present invention

3 is a circuit diagram of a constituent MAIN CASE of the present invention.

4th degree MICOM FLOW-CHART degree

5th Internal Earring Diagram

6 degrees TIME CHART

7 degrees MUTING schematic

8 is another circuit diagram for the preliminary experiment before the present invention

Explanation of symbols on the main parts of the drawings

Code within the first degree

1: main body

2: MEMBRANE SWITCH

3: DIGIT for function display

4: volume to adjust the volume

5: Earphone for listening to sound

6: cooling fan

7: ADAPTOR to operate with household power

8: Battery COVER

9: earrings

The present invention provides a technology for preventing human drowsiness, in particular, when a student's head is drowsy when the driver's drowsiness comes in during class time or while driving, the sensor detects drowsiness to generate an alarm sound and wakes up drowsiness. It is about.

In general, when a person sleeps, the head is leaned at an angle, and since the time is separated from the movement for the purpose of movement, the device judges it as data and alerts the user to wake up from sleepiness by means of voice, vibration, and cooling. It is about.

Details of the present invention in the order of the drawings as follows.

1 is a view showing an embodiment of the present invention;

1 is the outside of the body CASE;

2 is a switch panel for the operation of the drowsiness preventer and is composed of a DIGIT (3) for displaying the currently operating function, three function switches (10) and five program switches (11).

There are three jacks in the main case (12-14), where external sensors or output terminals are connected.

Jack No. 12 is a jack for converting household commercial power from Adapter (7) to DC power and supplying it to the PCB circuit in the main body.

Jack 13 is a jack to be supplied to the cooling fan according to the judgment of the main circuit.

Jack No. 14 has two functions, the first of which has a second function of transmitting a signal line for receiving the signal detected from the earring (9) and a voice output of the circuit to the earphone.

2 is a view showing an internal configuration of an embodiment of the present invention;

The lower right part of the main PCB consists of four batteries.

There are three jacks on the upper side and the edge of the PCB consists of four screws (9) for assembling the PCB and the upper and lower cases.

On the upper right side of the PCB, there is a volume to adjust the volume, and a spring terminal (6) connecting the battery terminal to the circuit of the PCB and a snap terminal (+) and-short for the series connection of the batteries in the battery cover (12) ( It consists of 7).

The PCB consists of DIGIT (8) for displaying each function (3 types) and program types (5 types) in this function, and it is composed of connector 11 for connecting with the wire of MEMBRANE Switch (13).

3 is an implementation circuit diagram of the present invention, which is mainly composed of five ICs, one DIGIT, and other components. When the adapter is plugged in, Jack is supplied with a 12V 2A power supply to the emitter of the transistor (Q1).

U1 is a voltage comparator that turns off Q1 when the collector output voltage of Q1 is higher than 5V and turns it on when it is lower than 5V. This 5V voltage is supplied to each part of the circuit, and when the battery is operated without an adapter, it operates in the same form. When the voltage of the battery is lowered and lower than 5V, the low voltage is transmitted to the output terminal of Q1.

U3 is a speech synthesis IC stored in the ROM and the audio is output to the AOUT terminal by the signal of the SA terminal. This audio level is adjusted by the volume VR2, and is connected to the + input terminal of the audio amplifier U5.

Also, the output of Audio Amp is output to Earphone.

U2 is a One Chip Micro Computer that detects the On state of 8 switches and detects the short circuit of Sensor (S1) and outputs the operation state to DIGIT through U4. U4 is the Data LATCH IC. Once data is input, the previous data is maintained until the next clock.

MICOM will also be able to act as a timer for a certain period of time.

Q3 is a transistor that controls the power supply of the external output terminal, which controls a lot of current. Output fan of Relay K1 is connected with cooling fan or cooling element.

Instead of an earphone, it can also be connected as a speaker.

4 is a Progran Flow Chart of One Chip Micom (U2), which is a flow chart of different routes depending on the state of the function switch and the program switch.

5 is a diagram showing the internal structure of the earrings, the short circuit of the switch (8) is made by the angle adjustment lever (1), and when the magnetic sensor is turned on, the vibration of the lever (2) of the mercury battery (3) is turned on Power is supplied to the element 6 to generate vibration.

Jack for external connection (7) is to transfer the short circuit of the sensor (8) to the circuit of the main body and is connected to the plug for earphone.

FIG. 6 is a time chart showing the operating time of the main body, and shows the voltage according to the flow of the self-sensing sensor, weight, delay time, and the like.

7 is a multing circuit that cuts the input of the audio amplifier, and is composed of a transistor having high characteristics such as forward hfe (current amplification) and reverse current amplification.

This circuit removes the noise signal through the earphone during the time of the timer delay.

FIG. 8 is another circuit diagram illustrating an example of the present invention. The third point is different from the preliminary experimental circuit for supplementing the switch and the program display due to the low functional capacity. The number of switches is three, and the program display is indicated by three LEDs.

Claims (2)

A device that temporarily stops drowsiness by detecting the habit of bowing down when a person falls asleep, and installs earrings in the ear to judge drowsiness if the time of drowsiness is regularly repeated. A drowsiness detection and temporary drowsiness eradication device, characterized in that the warning and, in addition to the vibration function or the cooling function can be selectively used. According to claim 1, The sensor for the body and the vibration function is to adopt a magnetic sensing method without adopting a mercury contact sensor method, which is used in some developed countries. Drowsiness detection and drowsiness eradication device, characterized in that.