KR20180000516U - Flashing light circuit and flashing light having the circuit - Google Patents

Abstract

The present invention relates to a warning light circuit and a warning light including the circuit. More particularly, the present invention relates to a warning light that is provided to a vehicle traveling in a rear direction when a vehicle is stopped due to an accident on the road, And the like.
The present invention relates to a beacon light circuit, and more particularly, to a beacon light circuit according to an embodiment of the present invention includes a battery unit for outputting main power as a plurality of batteries are connected in series, a switch connected to the battery unit for supplying or interrupting main power, Two light emitting diodes each having an anode connected to the main power source and a cathode connected to the collector terminals of the two transistors shorted to each other to emit light of different colors and the respective terminals shorted to connect the GPIO pin And the collector terminals of the first and second transistors are connected to the two light emitting diodes, respectively, and the base terminal of the first and second transistors is connected to the regulated voltage of the regulator as a high signal, And an MCU for alternately applying the MCU.

Description

TECHNICAL FIELD [0001] The present invention relates to a flashing light circuit and flashing light having the circuit,

The present invention relates to a warning light circuit and a warning light having the circuit. More particularly, the present invention relates to a warning light which is provided to a vehicle traveling in a rear direction when the vehicle is stopped due to an accident on the road, And a warning light including the circuit.

Generally, a warning light is installed in an automobile and it is used mainly for the purpose of notifying an emergency, or being installed on a road construction site to inform a danger.

For example, a traffic accident caused by a collision occurring on the road during driving can be frequently observed. The cause of the collision accident is that a driver of a vehicle traveling at a speed is not able to identify an accident vehicle This is caused by failure.

Due to the above-mentioned reasons, a large-sized traffic accident with large damage to the vehicle and human life occurs.

In order to prevent such a collision accident, a triangular safety belt is installed on the rear road of the vehicle to notify the vehicle running in the rear that the vehicle is in a standstill state, and a tow vehicle is quickly called up or maintained.

However, in the past, a driver of a rear driving vehicle of an accident vehicle often fails to recognize a safety belt installed away from the accident vehicle, thus causing a secondary traffic accident.

Especially, the driver who drives the vehicle at high speed on the highway often fails to grasp the safety belt within the set safety time, and the collision of the safety belt at night is much harder to cause a collision accident.

In order to solve this problem, there was a method of attaching a cylindrical blinker to the outer wall of the side of a vehicle or using a smoke generated by igniting a cylindrical rod, but there was a problem in the installation risk and effectiveness.

In addition, the height-expanding beacon disclosed in the prior art Patent Publication No. 10-2012-0135659 is suitable for a special vehicle such as an ambulance or a police car because the installation problem and the manufacturing cost are expensive, but it has been difficult to apply it to a general vehicle.

Publication No. 10-2012-0135659 (December 17, 2012)

The present invention is conceived to solve the above-described problems, and it is an object of the present invention to provide a rear light emitting diode lamp which emits lights of different colors alternately at upper and lower portions of a warning lamp attached to a still- The present invention provides a warning light circuit capable of preventing a second traffic accident caused by a collision with a stationary accident vehicle and reducing damage to persons and vehicles, and a warning light including the circuit.

Another object of the present invention is to provide a beacon light circuit which can be supplied to a general driver at a low price with a low manufacturing cost and can be used by being attached to a general vehicle, and a beacon having the circuit.

According to an aspect of the present invention, there is provided a beacon light circuit comprising: a battery unit having a plurality of batteries connected in series to output a main power;

A switch connected to the battery unit to supply or cut off main power;

A regulator for reducing the main power;

Two light emitting diodes each having an anode connected to the main power source and a cathode connected to the collector terminals of the two transistors shorted to each other to emit different colors;

The first and second transistors being short-circuited to each other and having a base terminal connected to the GPIO pin of the MCU and a collector terminal connected to the two light emitting diodes, respectively; And

An MCU for alternately applying the reduced voltage of the regulator to the base terminal of the first and second transistors with a high signal and a 0V signal;

.

In addition, the anode of the two light emitting diodes is connected to the main power source through a resistor for voltage distribution.

The base terminals of the first and second transistors are connected to the GPIO pins of the MCU through a pull-down resistor for preventing a floating state.

Then, after two light emitting diode operation steps previously executed in the EEPROM of the MCU are read, the following operation steps are executed. In the first step, one of the LEDs is turned on in the first step, The two light emitting diodes are turned on and off in sequence.

The beacon according to the embodiment of the present invention is characterized in that the beacon is provided on both sides of the main body of the beacon so that a string such as a band can be hung or tied.

A through hole is formed in the main body of the beacon, and a connection jack fixed to a PCB provided with the beacon circuit is disposed in the through hole, and an external DC jack (including a cigar for a vehicle) is inserted to supply power.

According to the means for solving the above-mentioned problem, light of different colors is emitted alternately at upper and lower sides of a warning light attached to a stopped accident vehicle so as to be noticed to the driver of the rearward traveling vehicle at an early stage, It is possible to prevent a second traffic accident caused by a collision with an accident vehicle and reduce the damage of people and vehicles.

In addition, it is possible to supply the general driver with an inexpensive selling price because the manufacturing cost is cheap, and it is possible to provide ease of use that can be used by being attached to a general vehicle.

1 is a circuit diagram of a beacon according to an embodiment of the present invention.
2 is a perspective view showing an embodiment of a beacon using the circuit of FIG.
3 is a front view of Fig.
4 is a side view of Fig.
5 is a perspective view showing another embodiment of a beacon using the circuit of FIG.
6A and 6B are a schematic plan view and a bottom view of the light guide board shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

It is to be noted that the same components of the drawings are denoted by the same reference numerals and symbols as possible even if they are shown in different drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention unnecessarily obscure.

Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

1 is a circuit diagram of a beacon according to an embodiment of the present invention.

As shown in FIG. 1, a beacon light circuit according to an embodiment of the present invention includes an MCU U1, light emitting diodes LED1 and LED2, transistors Q1, Q2, Q3, and Q4, a swith unit SWIM, (BAT), a switch (SW), and a regulator (U2).

First, the battery unit (BAT), for example, is made up of six 1.5V AAA size batteries connected in series, and holders J3 and J4 are used to fix the battery.

The battery unit BAT supplies or cuts off DC 9V to the beacon circuit through the connectors J3 and J4 and the switch SW.

At this time, unnecessary components (noise) are included in the DC 9V power supplied from the battery unit (BAT), so that it is removed through the bypass capacitors C154 and C153.

The push button switch is a push-button switch that is turned on once and turned off once again.

The regulator U2 receives the 9V power from the battery unit BAT via the third pin, depressurizes it to, for example, 3.3V, and outputs it through the second pin and the fourth pin.

At this time, a bypass capacitor C148 for solving the noise included in the 9V power supply is connected to the pin 3, and the bypass capacitors C150 and C151 are commonly connected to the pins 2 and 4 for the noise of 3.3V voltage .

For example, one light emitting diode (LED1) is a 3W green light emitting diode and the other diode (LED2) is a 3W red light emitting diode .

The anode of the light emitting diode LED1 is connected to a 9V power source through a resistor R42 and its cathode is connected to the collector of the two transistors Q1 and Q2 and the base of the two transistors Q1 and Q2 is connected through a resistor R47 Is connected to the GPIO pin (pin 9) of the MCU (U1).

Further, the emitters of the two transistors Q1 and Q2 are grounded, and the base of the transistor Q1 is grounded via the resistor R46.

Similarly, the anode of the light emitting diode LED2 is connected to a 9V power source through a resistor R43 and its cathode is connected to the collector of the two transistors Q3 and Q4. The base of the two transistors Q3 and Q4 is connected to a resistor R49, To the GPIO pin (pin 10) of the MCU (U2).

Further, the emitters of the two transistors Q3 and Q4 are grounded while the base of the transistor Q3 is grounded via the resistor R48.

That is, the emitters, collectors, and bases of the two transistors Q1 and Q2 are respectively shorted, and the emitters, collectors, and bases of the two transistors Q3 and Q4 are short-circuited.

As described above, in the circuit of the present invention, the power source applied to the light emitting diodes (LED1, LED2) is not the 3.3V converted by the regulator U2, but the 9V from the battery unit BAT is divided into the resistors R42 and R43 It is a power source with voltage distribution.

The reason why the power source of the battery unit BAT is used is that the current when the transistors Q1, Q2, Q3, and Q4 change to the ON state when the power source in which the transistors Q1, Q2, Q3, (U2) and the MCU (U1) due to the instantaneous increase of the output voltage of the regulator (U1).

The resistors R47 and R49 connected to the bases of the transistors Q1, Q2, Q3 and Q4 are current control resistors of the corresponding transistors.

If the value of this resistance is not proper, an overcurrent flows to the MCU (U1), which may be damaged by heat generation or the light emitting diodes (LED1, LED2) may not operate.

The other resistors R46 and R48 connected to the bases of the transistors Q1, Q2, Q3 and Q4 are connected to pull-down resistors for preventing floating states when there is no signal input from the MCU U1 to be.

The signals input from the MCU U1 to the transistors Q1, Q2, Q3, and Q4 are two signals of 3.3V or 0V. The other values are in floating state.

At this time, the signal becomes very susceptible to noise and the system becomes unstable. To prevent this, a pull-up or pull-down resistor is used.

The reset (RST) pin (pin 4) and the SWIM pin (pin 3) of the MCU U1 are connected to the swith unit SWIM and used to download a program written in the flash ROM provided in the MCU U1 .

At this time, download is done using ST-LINK V2, and the procedure will follow the method specified by the manufacturer.

At this time, three resistors R7, R8 and R11 are provided in the swing portion SWIM. The resistor R7 is a pull-up resistor and the resistors R8 and R11 are a termination resistor.

In the case of the resistors R8 and R11, the transmission device has an impedance according to various design standards, so that a reflection phenomenon occurs at a terminal or a branching point. A resistor is connected to both ends of the line, A resistor that adjusts the impedance on the line to reduce the reflection phenomenon and install it against the noise, that is, the termination resistance.

If unnecessary components are present in the power supply of the MCU (U1), the operation becomes unstable. Therefore, noise is filtered through the bypass capacitors (C152, C6) to minimize the operation.

The bypass capacitors (C152, C6) flow in the round except for unnecessary signal components (noise), so that a clean DC power can be obtained.

In addition, when a momentary voltage drop occurs in the system, it replenishes the power (voltage) and improves system stability by preventing power interference between loads consuming DC power.

The MCU U1 can use an internal clock and an external clock. However, in the present invention, an internal clock is used for cost reduction.

However, a spare circuit having a 16 MHz OSC and its peripheral circuits (resistors, capacitors) is additionally provided for connection to the MCU.

When the switch SW is pressed in such a circuit configuration, power is applied to the circuit, and at the same time the operation step of the light emitting diodes LED1 and LED2 previously executed in the EEPROM of the MCU U1 is read and then the next operation step is executed The operation steps are defined as two, the light emitting diode LED1 is turned on in the eleventh step, and the two light emitting diodes LED1 and LED2 are sequentially turned on in the second step.

At this time, since the open / short of the main power supply 9V is repeated, the previous operation step can not be stored in the SRAM (volatile memory) of the MCU U1.

Therefore, it is stored in non-volatile memory (EEPROM) where data is saved even when the power is turned off.

The 9th and 10th pins of the MCU U1 are connected to the base of the transistors Q1, Q2 and Q3 through the GPIO (General Purpose Input Output) Signal to control operation similar to an astable multivibrator.

That is, when a high signal is applied to the base, the base and the emitter are electrically connected to each other, and thus the light emitting diodes LED1 and LED2 are turned on. When a low signal is applied to the base, The current does not flow so that the light emitting diodes LED1 and LED2 are turned off.

More specifically, when a high signal is applied to the two transistors Q1 and Q2, the light emitting diode LED1 is turned on and the light emitting diode LED1 is turned off when a low level signal is applied. Similarly, When a signal is applied, the light emitting diode (LED2) is turned on and the light emitting diode (LED2) is turned off when a low signal is applied.

FIG. 2 is a perspective view showing an embodiment of a beacon using the circuit of FIG. 1, FIG. 3 is a front view of FIG. 2, and FIG. 4 is a side view of FIG.

2 to 4, a beacon 100 according to an embodiment of the present invention includes a front cover 26 and a rear cover 27 assembled together and a PCB 10 mounted therein The light emitting diodes 11 and 11 '(corresponding to LED1 and LED2 in Fig. 1) and the switch 13 (corresponding to SW in Fig. 1) mounted on the PCB 10 mounted inside the main body of the beacon lamp 100, And is exposed to the outside through the cover 26.

At this time, the light emitting diodes 11 and 11 'are positioned above and below the front cover so as to emit light of different colors and are protected by the transparent lens.

The switch is made of a push-button type switch which is exposed to the outside and can be operated from the outside, and is turned on once and turned off once again.

In this case, the lens for protecting the light emitting diodes 11 and 11 'may be provided with a reflection mirror for guiding light emitted from the light emitting diode to the outside.

A magnet case 22 is formed at a predetermined position on one side of the front cover 26 and on the inside wall of the rear portion of the rear cover 27 so that a beacon 100 can be attached to the vehicle, do.

At this time, the magnet 30 is preferably a neodymium magnet having a strong magnetic force.

Adoption of the neodymium magnet prevents the 119 ambulance from falling until the 119 ambulance arrives when the warning light 100 is attached to the outer wall of the side or rear surface of the accident vehicle even in the case of snow, rainy weather or strong wind.

A battery case 24 having an open rear is formed at the bottom of the back surface of the PCB 10 and exposed to the outside through a back cover 27. Six 1.5V batteries 19 are installed in the battery case 24 And a battery cover 23 through which the battery 19 enters and exits is provided at a position in contact with the battery 19.

The battery 19 is a secondary battery that can be charged and reused. A DC connection jack (not shown) may be provided on a side surface of the battery case 24 for charging the battery.

FIG. 5 is a perspective view showing another embodiment of a beacon using the circuit of FIG. 1, and FIGS. 6a and 6b are a schematic plan view and a bottom view of the beacon PCB shown in FIG.

The main body of the beacon 100 according to another embodiment of the present invention includes a front cover 26 and a rear cover 27 assembled together and a PCB 10 mounted inside the main body, The light emitting diodes 11 and 11 '(corresponding to LED1 and LED2 in Fig. 1) mounted on the mounted PCB 10 are exposed to the outside through the front cover 26. [

At this time, the light emitting diodes 11 and 11 'are positioned above and below the front cover so as to emit light of different colors, and are protected by a transparent lens. The light emitting diodes 11 and 11' A reflective mirror may be provided.

The hooks 104 are formed on the left and right sides of the main body, for example, so as to hook or tie a string such as a band.

In this hooking portion 104, for example, Velcro is provided at four end inner wall sides of the elastic band, and they are mutually fixed by Velcro, so that the length of the elastic band coupled to the hook portion can be adjusted.

Through this, it is possible to use it as a lighting device by adjusting the length of a flexible band at a fishing spot, a tent camper, a climber, etc., at night to couple to a fixed object.

A through hole 106 is formed at the center of the main body so that a connection jack 102 fixed to the center of the PCB 100 is positioned and the connection jack 102 includes a holder J3, (Not shown) connected to the first and second cables J4 and J4.

The cigarette lighter 100 is attached to the lower portion of the rear window of the vehicle by connecting a cigar jack (DC jack) for a vehicle connected to the cable passing through the floor of the vehicle to the connection jack 102, and then the LEDs 11 and 11 ' It is possible to prevent a collision from the rear vehicle by intersecting a strong flash light through the rear vehicle.

Further, when the battery 19 provided in the beacon is consumed, the operation time of the strong flashlight and the illumination lamp can be further extended by connecting an external DC jack to the connection jack 102.

Through this, it is possible to extend the time until the rescue helicopter or mountain rescue team arrives at the mountain in the distress, so that it can investigate the cross flashing flash of the LED. It can show the function of the light at the fishing spot or nighttime in the tent village.

According to the warning light employing the beep light circuit according to the embodiment of the present invention, since neodymium magnets are provided inside the vehicle, it is suitable for emergency situations because it can be easily attached behind the vehicle or in any direction in case of emergency. There is no need to take risks.

The operation is also simple, so it is simple to operate by pressing the switch, so anyone can use it without difficulty.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto.

Further, it is obvious that various modifications and variations can be made without departing from the scope of technical idea of the present invention by anyone having ordinary skill in the art.

BAT: Battery part C: Capacitor
LED1, LED2: light emitting diodes Q1, Q2, Q3, Q4: transistor
R: Resistance SW: Switch
U1: MCU U2: Regulator
100: warning light

Claims (6)

A battery unit (BAT) for outputting main power as a plurality of batteries are connected in series;
A switch SW connected to the battery unit BAT to supply or cut off the main power;
A regulator (U2) for reducing the main power;
The light emitting diodes LED1, LED2, and LED3 are connected to the collector terminals of the two transistors (Q1, Q2, Q3, and Q4) whose anode is connected to the main power source and the cathode is short- LED2);
The respective terminals are short-circuited so that the base terminal is connected to the GPIO pin of the MCU U1 and the collector terminal is connected to the two light emitting diodes LED1 and LED2 respectively. Q3, Q4)); And
The regulated voltage of the regulator U2 is switched to the high signal and the 0V to the low signal alternately at the base terminal of the first and second transistors Q1, Q2, Q3 and Q4 An MCU U2 to which the voltage is applied;
. The method according to claim 1,
Wherein the anode of the two light emitting diodes (LED1, LED2) is connected to the main power source through resistors (R42, R43) for voltage distribution. The method according to claim 1,
The base terminals of the first and second transistors Q1, Q2, Q3 and Q4 are connected to the GPIO pin of the MCU U1 through pull-down resistors R47 and R49 for preventing the floating state, Respectively. ≪ / RTI > The method according to claim 1,
After the operation steps of the two light emitting diodes LED1 and LED2 previously executed in the EEPROM of the MCU U1 are read, the following operation steps are executed. The operation steps are defined as two, The diode LED1 is turned on and the two light emitting diodes LED1 and LED2 are sequentially turned on and off in the second step. A warning light having the light guide circuit according to any one of claims 1 to 4, characterized in that hooks (104) are formed on both sides of the main body of the warning light (100) Warning light. 6. The method of claim 5,
A through hole 106 is formed in the main body of the beacon and a connection jack 102 fixed to the PCB 10 provided with the beacon circuit is positioned in the through hole 102 and an external DC jack (including a vehicle cigar jack) Is capable of supplying the light.

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