KR200426294Y1 - Portable infra red sensing light using dc electric power - Google Patents

Abstract

The purpose of the present application is to provide a portable DC power infrared sensor lamp which can be carried by using a DC power source, detects the movement of a person in proximity, and turns on, and is configured to select a continuous lighting state and a constant cycle lighting state. ,

Portable DC power infrared sensor of the present application to achieve the above object. A DC power supply unit for supplying DC power; An infrared detector for outputting a human detection signal within a predetermined distance after receiving the DC power as a reference voltage; A lighting cycle setting unit provided at an output side of the infrared sensing unit and outputting a lighting signal for a predetermined time according to the output signal of the infrared sensing unit; An internal switch unit provided between the reference power source and an external switch and switched to receive a lighting signal of the lighting cycle setting unit so as to be switched to supply power of the DC power supply unit to the lighting unit; An external switch unit for selectively switching output power of the power supply unit and power of the DC power unit to the lighting unit; And a lighting unit selectively lit by a DC power supplied by the power supply unit or a DC power supply of the DC power supply unit.

Infrared sensor light, external switch, DC power, light emitting diode, continuous lighting

Description

Portable DC power infrared sensor light {PORTABLE INFRA RED SENSING LIGHT USING DC ELECTRIC POWER}

1 is a circuit diagram showing an embodiment such as a portable DC power infrared sensor of the present application,

FIG. 2 is a diagram illustrating an exemplary embodiment of the portable DC power infrared sensor of FIG. 1.

Description of the main symbols in the drawings

100: DC power supply unit 200: low voltage detection unit

300: infrared sensor unit

S: Infrared sensor OP1: First amplifier

OP2: First Comparison

400: lighting cycle setting unit

OP3: 2nd comparison SW1: day / night selection switch

500: internal switch

OP4: Third Comparative Part C7: Capacitor for Lighting Cycle Setting

TR1: first transistor TR2: second transistor

600: external switch 620: selection switch

700: lighting unit

* LED1 ~ LEDn: light emitting diode

The present application relates to an infrared sensor that lights up by sensing a person's approach. More specifically, the present invention is portable by using a DC power source, and is lighted by detecting a movement of a nearby person. The present invention relates to a portable DC power infrared sensor that is configured to select periodic lighting.

When people move frequently, such as stairs and underground stairs of apartments, and where lighting is needed, when a person approaches within a certain distance by detecting infrared rays emitted from a person without a separate switch operation by manual operation An infrared sensor light is installed which is operated to turn on.

That is, the infrared sensor of the prior art is turned on when a person approaches at night by the operation as described above, and is turned off after a certain time to operate the light without direct switch operation to facilitate traffic.

However, since the infrared sensor of the prior art as described above is operated by receiving AC power, it is not limited to being fixedly installed and does not provide mobility.

In addition, the above-described infrared sensor light of the prior art has a fixed operation state to perform the operation that is turned off after a certain time after the lighting, it is inconvenient to use in a place where continuous lighting is required by being turned off even when continuous lighting is desired. Has the problem of causing.

Therefore, the present application is to solve the above-mentioned problems of the prior art, it is possible to reduce the manufacturing cost by using a low-cost device operated by a direct current (DC) power supply, and to carry a battery by making it possible to use a battery It is an object of the present invention to provide a portable DC power infrared sensor lamp that maintains the continuous lighting state by providing the characteristics and by selecting the continuous lighting state and the constant cycle lighting.

Portable DC power infrared sensor of the present application to achieve the above object. A DC power supply unit for supplying DC power; An infrared detector for outputting a human detection signal within a predetermined distance after receiving the DC power as a reference voltage; A lighting cycle setting unit provided at an output side of the infrared sensing unit and outputting a lighting signal for a predetermined time according to the output signal of the infrared sensing unit; An internal switch unit provided between the reference power source and an external switch and switched to receive a lighting signal of the lighting cycle setting unit so as to be switched to supply power of the DC power supply unit to the lighting unit; An external switch unit for selectively switching output power of the power supply unit and power of the DC power unit to the lighting unit; And a lighting unit selectively lit by a DC power supplied by the power supply unit or a DC power supply of the DC power supply unit.

The DC power supply unit is connected in parallel to one output terminal when the output voltage is a predetermined voltage or less when the low voltage detector for energizing and outputting a low voltage signal; characterized in that it further comprises a.

The infrared detection unit and the infrared sensor (S) for detecting the infrared of the person; A first amplifier OP1 that receives the output signal of the infrared sensor S through a non-inverting terminal and amplifies and outputs the output signal; A first voltage outputting a low level signal when a reference voltage is input to a non-inverting terminal and an output signal of the first amplifier OP1 is input to an inverting terminal and the output signal of the first amplifier OP1 is equal to or greater than a reference voltage value; Comparator (OP2); characterized in that comprises a.

The lighting period setting unit includes: a first diode D1 connected in parallel with an output signal terminal of the infrared detector and a second diode D2 coupled to a cathode; A third diode D3 having a cathode connected in series with the anode side of the second diode D2; The cathode of the first diode D1 is input to the inverting terminal, is connected to the anode of the second diode D2 and the cathode of the third diode D3, and is supplied from the DC power supply unit through a resistor R8. A second comparator OP3 having a non-inverting terminal connected to receive a reference power source; A fourth diode (D4) having an anode connected to the output terminal of the second comparator (OP3) and connected in parallel with the third diode (D3), one side of which is grounded via a resistor (R11); And a lighting cycle setting capacitor C7 connected in parallel with the fourth diode D4 between the output terminal of the second comparator D3 and the resistor R11.

The internal switch unit is connected to directly receive the output signal of the lighting cycle setting unit during the day at the output side of the lighting cycle setting unit, switching to receive the divided voltage by the resistors R9 and R10 connected to the reference power at night. Day and night selector switch; The output terminal of the day / night selection switch is connected to the inverting terminal, the third comparator OP4 to which the resistor R12 for supplying a reference voltage and the illuminance comparator are connected to the non-inverting terminal, and the output terminal of the third comparator OP4 is a base. An NPN type first transistor TR1 connected to the terminal and grounded; The base is grounded at the collector of the first transistor TR1, the emitter is connected to the anode of the DC power supply unit, and the collector is configured to include a second transistor TR2 connected to the first terminal of the external switch unit. .

The external switch unit includes a first terminal to which a collector of the second transistor TR2 is connected to the internal switch unit; A second terminal to which the anode of the lighting unit is connected; A third terminal to which the anode of the DC power supply unit is connected; And a selection switch for selectively switching the first terminal and the second terminal or the second terminal and the third terminal.

The lighting unit is characterized in that the anode is connected to the second terminal of the external switch unit, the cathode is characterized in that at least one light emitting diode connected to the cathode of the DC power supply unit is configured in parallel.

The portable DC power infrared sensor includes a top cover made of a transparent or semi-transparent material which is installed to be movable up and down at regular intervals so as to switch the external switch part, and a DC power part is formed at the bottom of the low voltage sensing part, a lighting period setting part, and an internal switch. An additional integrated substrate is formed, and a light emitting diode that forms a lighting unit is disposed at a position below the upper cover at an upper portion of the integrated substrate, and an infrared sensor of the infrared sensor unit is formed on an outer surface and is coupled to the upper cover. Characterized in that comprises a.

Hereinafter, the present application will be described in more detail with reference to the accompanying drawings.

1 is a circuit diagram showing an embodiment of a portable DC power infrared sensor of the present application.

As shown in FIG. 1, a portable DC power infrared sensor according to an embodiment of the present application has a circuit configuration operated by a DC power source, and includes a DC power supply unit 100 and a DC power supply unit 100. The positive electrode (+) is connected to supply a reference voltage and at the same time the low voltage detection unit 200 and the infrared detection unit 300 for detecting infrared rays, the lighting period setting unit 400 for setting the lighting period according to the infrared detection signal, The internal switch unit 500 that is switched to receive the lighting signal of the lighting period setting unit 400 and to supply the power of the DC power supply unit 100 to the lighting unit 700 is connected in parallel. In addition, the power output terminal of the internal switch unit 500 is provided with an external switch unit 600 for selecting the power of the DC power supply unit 100 or the output power of the internal switch unit 500 to supply to the lighting unit 700, The external switch unit 600 is configured such that the lighting unit 700 and the DC power supply unit 100 are connected to each other.

Each configuration is described in more detail as follows.

The DC power supply unit 100 may be configured to supply DC power by mounting a battery, or may be configured to supply DC power by an adapter, thereby ensuring mobility of the portable DC power infrared sensor of the present application. do. In FIG. 1, the power stabilizing capacitor C30 connected in parallel to the positive output terminal of the DC power supply unit 100 and grounded on one side stabilizes the power supply of the circuit.

The low voltage detection unit 200 is connected in parallel to the output terminal of the positive pole of the DC power supply unit 100, the low voltage sensing transistor 210, the light emitting diode (LEDLP) and the light emitting diode that are conducted when the output of the positive electrode is below a predetermined voltage value When the output power of the DC power supply unit 100 falls below a predetermined voltage value, the light emitting diode LEDLP emits light to inform the user that the voltage is low.

The infrared detector 300 includes an infrared sensor S, a first amplifier OP1, and a second comparator OP2. In more detail, the infrared sensor S includes an infrared sensor and a reference terminal T1 to which the positive power of the DC power supply unit 100 is connected, an output terminal T2 for outputting an infrared detection signal, and a ground terminal (2). T3) is provided. The output terminal T2 of the infrared sensor S is provided with a first amplifier OP1 for amplifying the output signal. The output signal of the first amplifier OP1 is input to the output terminal of the first amplifier OP1 as an inverting terminal, and the non-inverting terminal is supplied with a voltage distribution resistor R22 so that a reference voltage for determining the output level value is applied. The first comparator OP2 to which the positive pole of the DC power supply unit 100 is connected is provided.

And the output terminal of the first comparator (OP2) of the infrared detection unit 100 and the second diode (D2); A third diode D3; A second comparator OP3; A fourth diode D4; The lighting cycle setting unit 400 including the lighting cycle setting capacitor C7 is provided.

In more detail, the configuration of the lighting period setting unit 400, the anode of the first diode (D1) and the cathode of the second diode (D2) at the output terminal of the first comparator (OP2) of the infrared detection unit 100 Are connected in parallel. The cathode of the third diode D3 is connected to the anode side of the second diode D2. The second comparator OP3 is connected to the cathode of the first diode D1 and the anode side of the second diode, wherein the cathode of the first diode D1 is connected to the inverting terminal of the second comparator OP3. At the non-inverting terminal of the second comparator OP3, the cathode is connected to the anode of the second diode D2 connected to the output terminal of the first comparator OP2 and the cathode of the third diode D3 and at the same time the resistor R8. Through the positive electrode of the DC power supply unit 100 is connected. The fourth diode D4 to which the anode is connected is connected in parallel to the output terminal of the second comparator OP3, and the cathode of the third diode D3 and the cathode of the fourth diode D4 are resistors ( It is grounded via R11). In addition, a period setting capacitor C7, which is grounded through the resistor R11, is connected to the output terminal of the second comparator OP3 in parallel with the fourth diode D4.

Next, the output terminal of the second comparator OP3 of the lighting period setting unit 400 is branched in parallel to the period setting capacitor C7 and the fourth diode D4 and connected to the internal switch unit 500. As described above, the internal switch unit 500 connected to the output terminal of the second comparator OP3 includes a day / night selection switch SW1, a third comparator OP4, a first transistor TR1, and a second transistor ( TR2) are sequentially connected.

In more detail, the day and night selection switch SW1 includes two input terminals and an output terminal selectively switched to two input terminals, and one input terminal receives the output signal of the lighting period setting unit 400 directly during the day. The other input terminal is connected to receive the divided voltage by the resistors R9 and R10 connected to the reference power supply at night, and the output terminal is connected to the inverting terminal of the third comparator OP4. The non-inverting terminal of the third comparator OP4 is connected with a resistor R12 for supplying a reference voltage, and the non-inverting terminal and the resistor R12 of the third comparator OP4 are protected via a resistor R14. The resistor R15 and the CDS as the illuminance comparator are connected so that one side is grounded. Next, the base terminal of the first transistor TR1 of the NPN type is connected to the output terminal of the third comparator OP4, the emitter is grounded, and the collector is connected to the base of the second transistor TR2. The emitter of the second transistor TR2 is connected to the anode of the DC power supply unit, and the collector is connected to the external switch unit 600.

The external switch unit 600 is composed of a selection switch 620 for selectively switching the first to third terminals (611 to 613), the first and second terminals and the second and third terminals, the first The terminal 611 is connected to the collector of the second transistor TR2 of the internal switch unit 500, the second terminal 612 is connected to the anode of the lighting unit 700, and the direct current is connected to the third terminal 613. The positive pole of the power supply unit 100 is connected, and the selection switch 620 is configured to selectively switch the first terminal 611 and the second terminal 612 or the second terminal 612 and the third terminal 613. Configured to be connected.

When the first terminal 611 and the second terminal 612 are switched by the internal switch unit 500 so that the reference power is supplied, the lighting unit 700 which is powered by the power is turned on. It is connected to the second terminal 612 of the external switch unit 600, the cathode is at least one light emitting diode (LED1 ~ LEDn) configured in parallel to be connected to the negative electrode (-) of the DC power supply unit 100 It is composed.

Reference numerals CN1, CN2, and CN3 denote connectors for supplying power to the infrared sensing unit 300, the lighting cycle setting unit 400, the internal switch unit 500, and the lighting unit 700.

Next, an operation process of the portable DC power infrared sensor of FIG. 1 configured as described above will be described.

The portable DC power infrared sensor lamp (hereinafter referred to as "sensor light") having the above-described configuration is driven by a reference voltage applied to each component by an output power of the DC power supply unit 100 which receives DC power by an adapter or a battery. It becomes a state.

When a person approaches in the driving state as described above, the first amplifier OP1 amplifies the infrared detection signal detected by the infrared sensor S of the infrared sensor unit 30 as the inverting terminal of the first comparator OP2. Enter it. The first comparator OP2 outputs a low level signal to the lighting period setting unit 400 when the signal input to the inverting terminal is greater than the reference voltage input to the non-inverting terminal.

The lighting period setting unit 400 receives the low level signal output from the first comparator OP2 as the non-inverting terminal of the second comparator OP3, and the second comparator OP3 receives the low level signal as the output terminal. Output When the low level signal is output from the output terminal of the second comparator OP3, the fourth diode D4 is turned off, and one end of the period setting capacitor C7 becomes low level, thereby causing the period setting capacitor C7. ) Is started by the power supplied through the resistor (R8) and the third diode (D3).

At the same time, the output signal of the second comparator OP3 is input to the day / night selection switch SW1 of the internal switch unit 50 while maintaining the low level. In this case, when the sensor or the like is set to be operated during the day, the terminal connected directly to the output terminal of the second comparator OP3 is switched to short-circuit, and when it is set to be operated at night, the resistance of R9 and R10 is set. As a result, the terminal to which the divider resistor of the reference voltage is input is switched in a shorted state. This is because the voltage applied to the non-inverting terminal of the third comparator OP4 is lowered by lowering the resistance of the CDS during the day and the resistance is increased at night.

When the low level output signal is input to the non-inverting terminal of the third comparator OP4 from the day and night selection switch SW1 set as described above, the third comparator OP4 is the inverting terminal. ) Inputs a high level signal to the base terminal of the first transistor TR1 of the NPN type. As a result, the first transistor TR1 is turned on so that the collector of the first transistor TR1 is at a low level, and the low level is provided at the base of the second transistor TR2 of the PNP type connected to the collector of the first transistor TR1. When the signal is applied, the second transistor TR2 is also turned on to apply the positive power of the DC power supply unit 100 input from the emitter to the first terminal 611 of the external switch unit 600 through the collector.

In the normal state, the external switch unit 600 maintains a short-circuited state of the first terminal 611 and the second terminal 612 to supply DC power to the lighting unit 700 only when a person approaches. When the selection switch 620 is pressed, the second terminal 612 and the third terminal 613 are switched to the shorted state while the first terminal 611 and the second terminal 612 are shorted, and then again. When switched once, the first terminal 611 and the second terminal 612 are configured to perform the switching operation is switched. Therefore, when the positive power of the DC power supply unit 100 is supplied to the first terminal 611 of the external switch unit 600 by the second transistor TR2 of the internal switch unit 500, the external switch 60 is formed by the second transistor TR2. Since the first terminal 611 and the second terminal 612 are short-circuited, the supplied DC power is output to the lighting unit 700. As a result, the light emitting diodes (LED1 to LEDn) of the lighting unit 700 are turned on to be illuminated. This is done.

As described above, the light emitting diodes LED1 to LEDn are turned on and the cycle setting capacitor C7 of the lighting cycle setting unit 400 starts charging, and after a predetermined time, the cycle setting capacitor C7 is fully charged. A high level signal is applied to the inverting terminal of the third comparator OP4, and a low level signal is output to the output terminal of the third comparator OP4. Thus, the first transistor TR1 and the second transistor TR2 It is sequentially turned off, the power supply of the DC power supply unit 100 to the lighting unit 700 is cut off, so that the light emitting diodes LED1 to LEDn of the lighting unit 700 are turned off.

In this case, when the user wants to maintain the lighting of the lighting unit 700, the selection switch 620 is switched while the light emitting diodes LED1 to LEDn of the lighting unit 700 are turned on, so that the second terminal 612 and the second terminal 612 are turned on. When the three terminals 613 are short-circuited, the power of the DC power supply unit 100 is immediately input to the lighting unit 700, thereby maintaining the light emitting state of the light emitting diodes LED1 to LEDn.

The sensor lamp of the present application as described above may be manufactured as a portable lamp, Figure 2 is a view showing an embodiment of such a sensor lamp.

As shown in FIG. 2, in one embodiment of the present application, the sensor is provided with an upper cover 1 of a transparent or translucent material, the upper portion of which is installed to be able to flow up and down at regular intervals so as to switch the selection switch 620. The DC power supply unit 100 is provided with a transformer to install a battery or branched output by receiving the DC power of the adapter is formed, the low voltage detection unit 200, the lighting period setting unit 400 and the internal switch unit 500 Is formed as an integrated substrate, a light emitting diode (LED1 ~ LEDn) constituting the lighting unit 700 is formed on the lower portion of the upper cover 1 from the upper portion of the integrated substrate, the infrared sensor of the infrared sensor unit 300 ( S) is formed on the outer surface may be configured in the form of a lower case (2) coupled to the upper cover (1).

The sensor and the like that perform the configuration and operation as described above has a restriction that must be fixed in order to use a commercial AC power (AC) power by using a DC power supply can be carried by the user by providing mobility In addition, the user can easily operate in a dark place where commercial power is not supplied because lighting is performed by detecting the user's approach in a wardrobe, a vehicle, a camping tent during vacation, and a desk that are not supplied with commercial power.

In addition, the above-described sensor of the present application is provided in the bedroom to provide a convenience of life, such as to facilitate the user's wake up by detecting and lighting it when the user wakes up from sleep.

The above-described portable DC power infrared sensor of the present application provides the mobility and ease of installation by using a DC power supply. It can be easily installed in a dark place, thereby providing an effect of easily securing the walking safety of the user in a dark place.

In addition, the above-described portable DC power infrared sensor of the present application provides an effect of improving the convenience of the lighting life of the user by selectively performing the lighting and continuous lighting by the user approach detection.

Claims (6)

A DC power supply unit for supplying DC power; An infrared detector configured to output an infrared detection signal of a human body within a predetermined distance after receiving the DC power as a reference voltage; A lighting cycle setting unit provided at an output side of the infrared sensing unit and outputting a lighting signal for a predetermined time according to the output signal of the infrared sensing unit; An internal switch unit provided between the reference power source and an external switch and switched to receive a lighting signal of the lighting cycle setting unit so as to be switched to supply power of the DC power supply unit to the lighting unit; An external switch unit for selectively switching output power of the power supply unit and power of the DC power unit to the lighting unit; Portable DC power infrared sensor, characterized in that it comprises a; DC power supplied by the power supply or a lighting unit selectively lit by the DC power of the DC power supply. The portable DC power infrared ray of claim 1, further comprising a low voltage detector configured to be connected in parallel to one output terminal and output a low voltage signal when the output voltage reaches a predetermined voltage or less. Sensor etc. The method of claim 1, wherein the internal switch unit, The day and night selection switch is connected to the output period of the lighting period setting unit for direct input of the output signal of the lighting period setting unit during the day and switched to receive the divided voltage by the resistors R9 and R10 connected to the reference power at night. ; The output terminal of the day / night selection switch is connected to the inverting terminal, the third comparator OP4 to which the resistor R12 for supplying a reference voltage and the illuminance comparator are connected to the non-inverting terminal, and the output terminal of the third comparator OP4 is a base. An NPN type first transistor TR1 connected to the terminal and grounded; A base is grounded at the collector of the first transistor TR1, the emitter is connected to the anode of the DC power supply unit, and the collector comprises a second transistor TR2 connected to the first terminal of the external switch unit. Portable DC power infrared sensor. The method of claim 1, wherein the external switch unit, A first terminal to which a collector of the second transistor TR2 of the internal switch unit is connected; A second terminal to which the anode of the lighting unit is connected; A third terminal, to which a DC power supply is connected to the anode; And a selector switch for selectively switching the first terminal and the second terminal or the second terminal and the third terminal. The portable DC power infrared ray of claim 1, wherein the lighting unit has a positive electrode connected to a second terminal of the external switch unit, and the negative electrode comprises at least one light emitting diode connected in parallel to a negative electrode of the DC power supply unit. Sensor etc. According to any one of claims 1 to 5, The portable DC power infrared sensor, the upper cover of the transparent or semi-transparent material is installed so as to be able to flow at regular intervals up and down to switch the external switch, and the lower portion of the DC power supply Is formed, the low voltage detecting unit, the lighting period setting unit and the internal switch unit are formed as an integrated substrate, and the lighting unit is disposed at a position below the upper cover at an upper portion of the integrated substrate, and the infrared sensor unit is formed by an external infrared sensor. Portable DC power infrared sensor, characterized in that formed on the surface comprises a lower case coupled to the upper cover.

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