KR100308649B1 - Sleepiness alarm device - Google Patents

Abstract

PURPOSE: A sleepiness alarming apparatus is provided to prevent accidents by detecting sleepiness with a human body detecting sensor, and to reduce energy consumption by stopping a lamp or units in detecting sleepiness. CONSTITUTION: A sleepiness alarming device is composed of a human body detecting unit(4) detecting motion of the human body; an amplifying unit(6) amplifying a fine detecting signal; a voltage comparison unit(8) detecting sleepiness and outputting a sleepiness signal in case of the voltage of the human body detecting signal to be more than the reference value; a timer and alarm signal generating unit(10) outputting the alarm signal during the alarm cycle in inputting the sleepiness signal; and an alarm unit(12) sounding an alarm or melody in outputting the alarm signal. The alarming device is installed around a desk lamp to detect motion of the human body. Power consumption is prevented with shutting off power of the lamp in sounding the alarm over the set time.

Description

Sleepiness alarm device {Sleepiness alarm device}

The present invention relates to a drowsiness alarm device, in detail to detect the movement of the human body using a human body detection means and alarm means that can be installed on the lighting stand or the surrounding desk and workbench used mainly by students or examinees. If there is no movement of the human body for a certain period of time, it is judged to be drowsy and periodically generates an alarm sound such as an alarm or melody sound to alert drowsiness, and if there is no movement of the human body even after alarming drowsiness for a predetermined time (alarm time) It is determined to stop the drowsiness alarm device or to turn off the power of the lighting stand to prevent unnecessary power waste.

In general, there is no appropriate drowsiness alarm device that can be installed near a desk or work table when a student or worker is studying, working, or working. Drowsiness is further exacerbated.

In addition, even the lighting stand used by students does not have a drowsiness alarm means that can be easily installed around the lighting stand or desk, so that students cannot study when they sleep, and the lights are turned on unnecessarily during sleepiness or sleep. There is a wasteful factor.

On the other hand, some devices have been proposed to install a drowsiness preventing device to alert the driver when the driver tightens, but there are few practical drowsiness alarm devices that can be used easily by students or workers and operate reliably. Or, the 'Drowsiness Prevention Alarm', which detects a driver's or student's drowsiness status by using a horizontal sensor and an alarm means that detects a student's head tilt, has been disclosed in Utility Model Registration Publication No. 98-9375, but drowsiness Since the sensor uses a horizontal sensor to detect the inclination of the head, the tilt and the degree of detection vary depending on the user's wearing condition. Therefore, the reliability decreases and most of all, it is configured as a hearing aid and worn on the user's ear. This is cumbersome and the difference in the degree of wear depending on the wear This, but there was a problem such as low concentration.

Therefore, the present invention focuses on the fact that the human body can not move for a long time (approximately tens of seconds to several minutes or more) when studying, working, or working due to the characteristics of the human body. The object of the human body detecting means that there is no movement of the human body is determined to be drowsy and alert.

In addition, by installing the human body detecting means and the alarm means on the electric stand for the purpose of determining that there is no movement of the human body for more than a certain time to determine that the drowsiness.

In addition, even after the drowsiness alarm is made for a certain period of time, if there is no movement of the human body to determine the state of sleep or water surface to turn off the lights or stop the drowsiness alarm device or work device to save the electric energy. .

In order to achieve the above object, the human body detecting means for detecting the movement of the human body, the amplifying means for amplifying the human body detection signal detected by the human body detection means with a large signal, the human body detection signal by comparing the amplified human body detection signal and the reference signal Is a drowsiness preventing device comprising a comparison means for outputting a drowsiness signal if greater than the reference signal, and an alarm generating means for outputting an alarm signal and an alarm sound every several seconds to several tens of seconds when the drowsiness signal is continuously input from the comparison means. The drowsiness prevention device can be installed on the lighting stand or installed on a desk or workbench to detect the movement of the human body.If there is no movement of the human body for more than a set time, the drowsiness alarm is made periodically, and the drowsiness alarm If the alarm time exceeds the set alarm time, adjust it using a relay or an active semiconductor device. To block the operation power source of the stand or work tool and to prevent a waste of power.

1 is a circuit block diagram of the present invention.

2 is an external perspective view of an embodiment of the present invention.

3 is a circuit block diagram of another embodiment of the present invention.

4 is a perspective view of the use state according to the present invention FIG.

5 is a detailed circuit diagram of an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

(1) (1a)-Drowsiness Prevention Device (2)-Lighting Stand

(3)-Case (4)-Human detection sensor

(5) (15)-lens (or filter) (6)-amplifier

(7) (17)-Power supply line (8)-Voltage comparator (voltage comparator)

(9) (18)-Power switch (10)-Timer and alarm signal generator

(11)-Lights (12)-Alarms Department

(13)-Holding (14)-Lighting power disconnect

(16)-base (Q)-transistor

(D)-Diode (R)-Resistance

(C)-Capacitor (BZ1)-Buzzer

(K1)-Relay (VR1)-Time potentiometer

(U5D)-Voltage Comparators (U1A) (U5B) (U5C)-Amplification ICs

(U4)-timer IC

Hereinafter, the detailed description of the technical configuration and the working relationship of the present invention will be described in detail with reference to the accompanying drawings.

1 is a circuit block diagram of the drowsiness preventing device 1 of the present invention, the drowsiness detection means for generating a drowsiness signal by comparing / detecting the motion state of the human body, an alarm means for generating an alarm signal when the user is detected as drowsy; In the drowsiness alarm device comprising an amplification unit for amplifying the alarm signal greatly; Human body detecting sensor unit 4 for detecting the movement of the human body, amplifying unit 6 for voltage amplifying the weak detection signal detected by the human body sensor 4 as a large force signal, amplified human body detection When the human body detection signal voltage is compared with the reference voltage by comparing the signal voltage with the reference voltage, the voltage comparison unit 8 which outputs a drowsy signal by judging it as drowsiness, and the drowsiness signal from the voltage comparator 8 are continuously set. When the alarm signal is output from the timer and alarm signal generator 10 for outputting the alarm signal during the alarm period and the alarm time, and the timer and alarm signal generator 10 generates an alarm sound such as an alarm or a melody sound for several seconds. It consists of the alarm part 12.

The human body detecting means used in the human body sensor 4 may use a conventional infrared detector, but when using the infrared sensor may be malfunctioned by the interference of the object located around the infrared detector, in particular of the lighting stand In some cases, the drowsiness prevention device may malfunction due to insects such as worms, mosquitoes, flies, and cockroaches.

Therefore, in the present invention, the insect having a body temperature lower (or higher) than the body temperature of the human body, including an object, by detecting the movement of the human body by using a human body sensor having a temperature around 36.5 ° C., which is the average body temperature of the human body, as a sensing region. Minimize the malfunction of the drowsiness prevention device.

Figure 2 is an external perspective view of the drowsiness preventing device 1 of the present invention that can be easily used by a method such as mounting or fixing on a desk or work table, and a filter or lens 5 is installed in front of the human body sensor 4. To improve the sensitivity of the human body sensor 4, to connect the power supply line 7 to the side or rear of the case 3 to supply the operating power, the power switch on the front side of the case (3) (9) is installed so that the drowsiness prevention device (1) can be turned ON (ON / OFF).

In addition, if the drowsiness signal continues to be input even after exceeding the alarm time by connecting a power cut-off device that cuts off the power supplied to the drowsiness preventing device 1, it is determined that the sleep is to cut off the power of the drowsiness preventing device 1 of the present invention or It is desirable to cut off the power of the lighting stand 2 and the working device to save electrical energy.

Meanwhile, FIGS. 3 and 4 show that the drowsiness preventing device 1a may be incorporated into the lighting stand 2 mainly used by students or workers.

As shown in FIG. 4, the human body sensor 4 is installed on the front surface of the support 13 of the lighting stand 2 having the lamp 11 to detect the movement of the human body, and a timer and an alarm signal generator 10 are provided. Connect the lighting power cut-off unit 14 which cuts off the power of the lighting stand 2 to one end of the), and if the human body does not move continuously after the alarm, the power of the lighting stand 2 can be cut off to save electric energy. Make sure

In FIG. 4, a filter or a lens 15 is installed in front of the human body sensor 4 installed in the support 13 to improve the sensitivity of the human body sensor 4, and the side of the pedestal 16. Connect the power supply line 17 to the rear or the rear to supply the operating power, and install the power switch 18 on one side of the front side of the support 13 to turn the drowsiness preventing device 1a ON / OFF. In the description, reference numeral 19 denotes a lamp ON / OFF switch.

In the above alarm output, when about 3 minutes (adjustable with variable resistance) elapses without moving the human body, the first alarm sound is output and it outputs 2 times every 3 minutes for about 20 seconds. If the human body detection signal is input before 3 minutes' elapses, the timer starts the counter from 0, and if there is no human body detection signal until 6 minutes have elapsed, the timer judges that it is a sleep and turns off the power cutoff signal to the lighting power cutoff unit 14. Output to cut off the power of the drowsiness preventing device 1 of the present invention or to cut off the power of the lighting stand (2) and the working device to save electrical energy.

In the above description, the alarm period and the alarm time are taken as an example for convenience of description, and of course, the time constant value of the circuit may be changed to set the optimum time.

5 is a detailed circuit diagram of an embodiment of the present invention, comprising a pull-up resistor (R1) (R6) and a human body sensor to detect the movement of the human body (4), the amplifier (U1A) and the resistance And an amplifier U5B and a resistor configured to firstly amplify the weak human body detection signal input from the human body sensor 4 by R3, R5 and capacitors C3 and C6. An amplifier U2C and a resistor R2 (R9) (R4) (R7) (R8) and a capacitor (C2) configured to voltage amplify the primary amplified signal input from the amplifier 1 secondly; R10) and a capacitor (C1) consisting of amplifying unit 3 for voltage amplifying the second amplified signal input from the amplifying unit 2 in the third, amplified human sense voltage input to the non-inverting terminal (+) of the comparator (U5D) And the reference voltage (4.5V) supplied from the power supply circuit to the inverting terminal (-) of the comparator (U5D) and compare the drowsiness signal when the human body detection voltage exceeds the reference voltage. For setting voltage comparator, timer IC (U4), diode (D1) (D2) (D3) (D4) (D5) (D7), resistor (R16) (R17) (R18) (R21) and alarm time setting When the drowsy signal is input from the voltage comparator and consists of the variable resistor VR1 and the capacitor C12 and C13, the alarm signal is output in an alarm cycle set before and after 20 seconds and drowsiness exceeds the alarm time set around 3 minutes. When the signal is input, the alarm signal is input from the timer and alarm signal generation circuit by consisting of a timer and alarm signal generation circuit for outputting a power cutoff signal, an alarm buzzer BZ1, a resistor R15, and a switching transistor Q2. When the switching transistor Q2 is turned on, the buzzer BZ1 activates the alarm unit, the transistor Q3, Q4, resistor R19, R20, diode D6 If the power cutoff signal is input from the timer and alarm signal generating circuit, Fluorescent lamp Aw assay is configured a drowsiness preventing device in a relay drive circuit for blocking the power supplied to the (fluorescent ASS`Y).

According to the present invention configured as described above, the human body sensor 4 detects the movement of the human body and then supplies it to the amplifier 6 to amplify the voltage with a large force signal, and the amplified human body detection signal is a voltage comparator ( 6) and then compared with the reference voltage, if the human body detection signal voltage is compared with the reference voltage is determined to be drowsy signal is output.

The drowsiness signal is supplied to the timer and the alarm signal generator 10 and the alarm signal is output to the alarm unit 12 to prevent drowsiness, the alarm output is the first alarm sound after about 3 minutes without moving the human body Is output, and outputs twice every 20 seconds for 3 minutes. If the human body detection signal is input before 'initial 3 minutes + alarm output time 3 minutes' elapses, the timer starts again from 0, and 6 minutes have elapsed. If there is no human body detection signal until it is determined to sleep to output a power cut signal to the lighting power cut-off unit 14 to cut off the power of the drowsiness preventing device 1 of the present invention or cut off the power of the lighting stand 2 and the work device It can save electrical energy.

In addition, the human body detecting means used in the human body sensor 4 detects the movement of the human body using a human body sensor using a temperature sensor around 36.5 ℃, which is the average body temperature of the human body as the sensing area, so that the body temperature of the human body, including the object It is possible to prevent malfunction of the drowsiness preventing device by insects having lower (or higher) body temperature (day meat, mosquitoes, flies, cockroaches).

In addition, since the filter or the lens 5 is installed in front of the human body sensor 4, the sensitivity of the human body sensor is improved, and the power switch 9 is installed at one side of the case 3, so that if necessary, The drowsiness prevention device 1 can be turned ON / OFF.

Meanwhile, in the case of FIG. 5, the human body detecting signal of the minute size detected by the human body detecting sensor is first amplified by the amplifying unit 1, voltage amplified into a sufficient size signal through the amplifying unit 2, and the amplifying unit 3, and then a voltage comparator. It is compared with the reference voltage (approximately 4.5V) input to the non-inverting (+) terminal of and applied to the inverting terminal (-) of the voltage comparator.

On the other hand, normally, the human body sense signal voltage input to the non-inverting terminal (+) of the voltage comparator is lower than the reference voltage, so the output of the voltage comparator becomes 'low' level. Since the voltage comparator is higher than the reference voltage, the output of the voltage comparator is at the 'high' level.In this case, the timer resets the reset terminal (RST) of the timer IC (U2) every time the human body moves. When 20 seconds have elapsed without alarm, the timer will output the alarm signal.

The alarm output is the first alarm sound when about 3 minutes (adjustable by variable resistance) has elapsed and the human body does not move, and it outputs 2 times every 3 minutes every 20 seconds. 'Initial 3 minutes + alarm output time 3 minutes If the human body detection signal is input before the elapsed time, the timer starts again from 0. If there is no human body detection signal until 6 minutes have elapsed, the signal output terminal Q14 of the timer IC U2 is set to 'low' at the 'high' level. The transistor Q3 is turned off through the capacitor C8 and the resistor R17 while falling to the level, and the transistor Q2 is turned on so that the relay Ry is operated. 11) is turned off.

As described above, the present invention has a drowsiness alarm when a student or worker is tightened, thereby preventing drowsiness, thereby preventing a safety accident.

In addition, by detecting the drowsiness or sleep by using a human body sensor to detect the movement of the human body to ensure a reliable operation and the reliability of the product and the product can be used by students or workers in practical use.

In addition, even after the drowsiness alarm is made for a certain period of time, if there is no movement of the human body is judged to be in the sleep or mantle state to turn off the lights or stop the drowsiness alarm device or work device has the effect of saving the electrical energy.

In addition, when the drowsiness alarm device is installed in a case, it is a very useful invention having the effect that it can be easily installed and used by placing or fixing on a desk or work table.

Claims (6)

A drowsiness detecting device comprising drowsiness detecting means for generating a drowsiness signal by comparing / sensing a motion state of a human body, an alarm means for emitting an alarm signal when a user is detected as a drowsiness state, and an amplifying part for amplifying the alarm signal; The human body detecting sensor for detecting the average body temperature of 36.5 ℃ before and after the lamp and output the human body motion signal, and if the human body motion signal is not input from the human body sensor for a predetermined time, the alarm unit for outputting the drowsiness alarm Drowsiness alarm device connected to the output of the sensor. The drowsiness alarm according to claim 2, wherein when there is no movement of the human body even after the drowsiness alarm has been made for a certain period of time, it is determined that the human body is in a sleep state to cut off the electric power supplied to the lamp and / or the drowsiness alarm device to save electric energy. Device. According to claim 2, the drowsiness alarm outputs the first drowsiness alarm after 3 minutes without moving the human body and then outputs the drowsiness alarm twice for 2 minutes every 20 seconds, the human body detection signal until Drowsiness alarm device, characterized in that if not determined to sleep. According to claim 2, Drowsiness alarm device characterized in that to install a filter and / or a lens in front of the human body sensor to improve the sensitivity of the human body sensor. According to claim 2, wherein the human body detecting sensor unit 4 is provided on the front surface of the support 13 of the lighting stand 2 having the lamp 11, and the lighting power is cut off at one end of the timer and alarm signal generator 10. The drowsiness alarm apparatus which connected the part 14. 3. The human body sensor unit 4 according to claim 2, comprising a pull-up resistor (R1) (R6) and a human body sensor, sensing the movement of the human body, an amplifier (U1A), a resistor (R3) (R5) and a capacitor (C3) and (C6), an amplifier unit 1 for voltage amplifying the weak human body detection signal input from the human body sensor unit 4 first, the amplifier (U5B) and the resistor (R4) (R7) (R8) And an amplifier 2 for voltage-amplifying the primary amplified signal input from the amplifier 1 by the second, and the amplifier U5C, the resistors R2, R9, R10, and capacitor C1. And an amplifying unit 3 for voltage amplifying the second amplified signal input from the amplifying unit 2 in the third order, and the comparator (U5D) from the human detection signal voltage and the power supply circuit inputted to the non-inverting terminal (+) of the comparator U5D. Voltage comparator and timer for outputting drowsiness signal when human detection signal voltage exceeds reference voltage by comparing reference voltage (4.5V) supplied to inverting terminal (-) of IC (U4), diode (D1) (D2) (D3) (D4) (D5) (D7), resistor (R16) (R17) (R18) (R21), variable resistor (VR1) and capacitor for alarm time setting Timer and alarm signal generating circuit that outputs an alarm signal when the drowsiness signal is input from the voltage comparator and outputs the power cutoff signal when the drowsiness signal is inputted in excess of the alarm time. An alarm unit configured of a BZ1, a resistor R15, and a switching transistor Q2, and when the alarm signal is input from a timer and an alarm signal generation circuit, the buzzer BZ1 operates to output an alarm sound, and a transistor Q3 (Q4). ) And a resistor (R19) (R20), a diode (D6), and a relay (K1), and a relay drive circuit that cuts off the power supplied to the lamp (fluorescent lamp assembly) when a power cutoff signal is input from the timer and alarm signal generating circuit. Drowsiness prevention device composed of furnace.