KR20190072500A - LED illumination control device and method having illumination and sterilization function in accordance with human body detection function - Google Patents

Abstract

The present invention discloses an LED lighting control device having a lighting and sterilizing function according to a human body or organism detecting function, and a method thereof. The LED lighting control device is connected with an LED dedicated converter in which a wireless communication unit is mounted or connected in a separated form. Here, the wireless communication unit receives a remote LED ON/OFF control signal, a lighting control signal, and a dimming PWM signal using the PWM signal through wireless communication such as BLE, Wi-Fi, Z-Wave, and Zigbee with a smartphone. In addition, the LED lighting control device can detect heat or motions of a human body or an organism by using one or more sensors among a microwave (M/V) sensor, an IR sensor, a PIR sensor, an ultrasonic sensor, and a proximity sensor after supplying DC power, can provide an ultraviolet sterilization function using a UV LED when a human body or an organism are is not detected, and can be used as an LED for lighting when a human body or an organism are is detected.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED illumination control device and method for illumination and sterilizing functions according to a human body or an organism sensing function,

The present invention relates to an LED lighting control apparatus and method, and more particularly, to a remote LED ON / OFF control through wireless communication such as a 2.4 GHz Bluetooth low energy (BLE), Wi-Fi, Zigbee, , A lighting control signal, and a dimming control signal using a PWM (Pulse Width Modulation) signal, is connected or connected to a LED-dedicated converter connected in a form of a separate LED, W sensor), a PIR sensor, an ultrasonic sensor, and a proximity sensor to detect heat or motion of a human body or an organism, to perform an ultraviolet sterilizing function using a UV LED when a human body or an organism is not detected, Or an LED lighting control device and method having an illumination and sterilization function according to a human body or an organism detection function, which is used as an illumination LED when an organism is detected.

In recent years, fluorescent lamps used as indoor lighting lamps, and sodium lamps and metal lamps used as outdoor lamps have been replaced by LED lamps.

An LED (Light Emitting Diode) is a p-type semiconductor in which a majority carrier is an electron n-type semiconductor and a majority carrier is a hole, is a photoelectric conversion semiconductor element of a PN junction diode. When a forward voltage is applied to a PN junction diode The recombination of electrons and holes in the pn junction causes the energy of a part thereof to emit light having a specific wavelength band by the characteristics of the compound PN junction semiconductor, the current must be adjusted.

The LED module comprises: i) a lamp type cannulated LED having an anode (+), a long side) and a cathode (Cathode (-) short side), ii) a surface mounted device (SMD) ) Use a COB (Chip on Board) package on the PCB substrate.

LED lighting modules are used for lamps (for signals below 1W), SMD (for 1-5W household appliances), and COB (for high power lighting above 5W) depending on the characteristics and applications of the LED package. The heat dissipation structure has a smaller heat transfer surface than the SMD package, and the thermal characteristics can be improved by 20%.

LEDs are mainly used in LEDs, interior lighting devices, outdoor LED signboards, traffic lights, streetlights, automobile headlights, and LEDs for microcomputers in electronic devices.

The LED driving method provides light color and color temperature control by changing the light output by a DC driving circuit, an AC driving circuit, and a PWM (Pulse Width Modulation) driving circuit.

The printed circuit board (PCB) used in the LED board and the light guide plate combination method can constitute a circuit by arranging the LED electric signboard connected to the PCB in a matrix structure.

LED signboards are available in RGB (Red, Green, Blue) three color or full color LED signboards consisting of single color and one unit LED package. They use printed circuit board (PCB) , A heat sink (Heatsink) is used on the back side of the PCB substrate to solve heat generated during operation of the LED chip.

In the related art 1, Patent Registration No. 10-14298850000 discloses a housing structure of an LED lamp that is applied to LED floodlight, LED street lamp, LED security lamp, LED underground lamp and LED tunnel, Quot; LED lighting device for controlling human body motion and controlling brightness according to temperature "for controlling the amount of light and color temperature according to the temperature.

The housing structure of the LED lamp unit includes a housing main body in which the LED module unit is installed and a heat radiating unit is formed in an upper portion thereof; A joint box formed on an upper portion of the housing main body, the power box being connected to the joint box; A casing unit having the LED module installed inside the housing main body, and a casing part coupled to an upper part of the housing main body to facilitate coupling of the lamp with other equipment or facility; And a heat dissipating unit formed on the casing unit to dissipate heat generated in the LED module unit. The heat dissipating unit is formed perpendicularly to the housing body, and has a cylindrical shape And a plurality of heat radiating fins.

As a related art 2, Patent Publication No. 10-2015-0032035 discloses "a sterilizing apparatus having an ultraviolet light-emitting diode and a method of operating the same. &Quot; When ultraviolet rays are near 220-280 nm, the effect of directly sterilizing bacteria such as E. coli is maximized.

A sterilizing apparatus having an ultraviolet light emitting diode includes an outer cover having a plurality of openings, a light emitting diode disposed at a position exposed by each of the openings in the outer cover, and a light emitting diode And a second position covering the light emitting diodes exposed by the openings.

1 is a plan view showing a sterilizing operation on state of a conventional sterilizing apparatus having an ultraviolet light emitting diode.

A sterilizing apparatus (100) having an ultraviolet light emitting diode includes an outer cover (110) having a plurality of openings (120). The outer cover 110 includes an upper cover 111, a lower cover 112, and a side cover 113. Although the outer cover 110 is integrally formed, the outer cover 110 may be a separate type of upper cover, lower cover, and side cover. In one example, the outer cover 110 may be a plastic material. The openings 120 of the outer cover 110 are disposed in the upper cover 111. [ A plurality of openings 120 of the upper cover 111 are disposed, and each of the openings 120 is disposed to be spaced apart from one another by a predetermined distance. Each of the openings 120 has a circular cross-sectional shape, but it may be of a rectangular cross-sectional shape as an example only.

In the outer cover 110, a plurality of light emitting diodes 130 are arranged. In this example, the light emitting diodes 130 include ultraviolet light emitting diodes (UV LEDs) that emit ultraviolet light (UV). The positions at which the light emitting diodes 130 are disposed correspond to the positions of the openings 120 of the upper cover 111. Therefore, the number of the light emitting diodes 130 corresponds to the number of the openings 120. The ultraviolet rays emitted from the light emitting diode 130 are transferred to the outside through the opening 120.

A plurality of protective layers 210 are disposed in the outer cover 120. The plurality of protective layers 210 have the same number as the number of the openings 120. Each cross sectional shape of the protective layers 210 is the same as the cross sectional shape of each of the openings 120. However, this is merely an example, and in some cases, each cross-sectional shape of the protective layers 210 may be different from each cross-sectional shape of the openings 120. [ In either case, each of the protective layers 210 has a cross-sectional area that is larger than the surface area of the light-emitting diode 130. Each of the protective layers 210 may have a cross-sectional area that is greater than the cross-sectional area of each of the openings 120. Each of the protective layers 210 is interconnected by a protective layer support 220. In this example, each of the passivation layers 210 is configured to be connected to the adjacently disposed passivation layer 210 and the passivation layer support 220.

However, conventional LED lamps provide peripheral disinfection function using UV LED when no human body or organism is detected, and illumination and disinfection function according to human body or organism detection function, which is used as illumination LED when human body or organism is detected The LED lighting control apparatus and method are not provided.

Patent Registration No. 10-14298850000 (registered on August 07, 2014), "LED lighting device controlling brightness according to human body motion and temperature", Design Square Patent Publication No. 10-2015-0032035 (published on Mar. 25, 2015), "Sterilization Apparatus Having an Ultraviolet Light Emitting Diode and its Operation Method ", Seoul Biosys Co., Ltd.

It is an object of the present invention to solve the problems of the prior art, and it is an object of the present invention to provide a remote LED ON / OFF control, a lighting control signal, a pulse width modulation (PWM) (M / W) sensor, a PIR sensor, an ultrasonic sensor, and a proximity sensor in a LED lighting control device connected to an LED dedicated converter connected to a wireless communication unit receiving a dimming control signal using a signal One or more of the sensors can be used to detect heat or motion of the human body or organism. Ultraviolet sterilizing function using UV LED when no human body or organism is detected, and used as an illumination LED when a human body or an organism is detected , An LED lighting control apparatus and method having an illumination and sterilizing function according to a human body or an organism sensing function.

Another object of the present invention is to provide an LED lighting control method having an illumination function and a sterilizing function according to a human body or an organism sensing function.

In order to achieve the object of the present invention, an LED lighting control apparatus having an illumination and sterilizing function according to a human body or an organism sensing function includes an LED lighting control unit for controlling an LED lighting or ultraviolet sterilization function depending on whether a human body or an organism is sensed by a sensor An LED luminaire system having a plurality of UV LEDs and LEDs for illumination; A LED dedicated converter connected to an LED lighting control unit of the LED lighting system and connected to a wireless communication unit supporting BLE, Wi-Fi, Z-Wave and Zigbee for receiving a DC power and receiving AC power; And an LED dedicated converter capable of mounting or dismounting the wireless communication unit. By using the BLE wireless communication control technology, it is possible to sterilize ultraviolet rays using UV LEDs and to control LEDs for illumination over time, A remote LED ON / OFF control signal, a dimming control signal, and a passive mode control signal are mounted or disconnected via wireless communication to control the sterilizing intensity of the smartphone and the coloring and dimming of the lighting by the user Includes smartphones with apps that transfer to available LED-only converters,

Wherein the LED dedicated converter capable of mounting or removing the wireless communication unit includes an AC / DC converter, a PWM pulse driving circuit, and a wireless communication unit, wherein the wireless communication unit is mounted on or separated from the LED dedicated converter,

And transmits the failure diagnostic data to the smartphone when the wireless communication unit fails in the LED-dedicated converter. When the wireless communication unit module is removed from the LED-dedicated converter during the abnormal operation of the wireless communication unit, The UV LEDs are turned off and only the ON / OFF of the illumination LEDs is operated.

In order to achieve the other object of the present invention, an LED lighting control method having an illumination and sterilizing function according to a human body or an organism sensing function is a method of controlling an LED lighting control from an LED dedicated converter capable of mounting or dismounting a wireless communication unit, Sensing a thermal sensation or an action of a human body or an organism by a sensor of the LED lighting system after power is supplied; If the human body or the organism is not detected, turning off the LED for illumination and ultraviolet sterilizing by a plurality of UV LEDs of the LED lamp; And turning off the UV LEDs for safety purposes and using the LED for illumination once the human body or the organism is detected.

The method includes: receiving a remote LED ON / OFF control signal or a dimming control signal from a smartphone with an LED dedicated converter connected to the wireless communication unit in a mounted or separated manner; And a LED dedicated converter capable of mounting or dismounting the wireless communication unit transmits the remote LED ON / OFF control signal or the PWM signal for dimming control to the control unit of the LED lighting control unit, thereby driving the LED driving circuit unit and the dimming control unit, respectively, Remote ON / OFF control of the luminaire, and dimming control for controlling the brightness in the On and Off duty ratios according to the PWM signal.

The LED lighting control apparatus and method having illumination and sterilizing functions according to the human body or organism detection function according to the present invention can be applied to a remote LED ON / OFF control through a wireless communication such as a smart phone and BLE, Wi-Fi, ZigBee, (M / W) after DC power supply in an LED lighting control device connected to a dedicated LED converter for mounting or dismounting a wireless communication unit which receives a dimming control signal using an LED, a lighting control signal, and a PWM (Pulse Width Modulation) The sensor detects the heat or motion of the human body or organism by using at least one of the sensor, the PIR sensor, the ultrasonic sensor and the proximity sensor. When the human body or the organism is not detected, the UV LED sterilizing function is performed. Is used as an LED for illumination when it is detected.

Depending on human body or organism detection function, the LED lighting control device with illumination and disinfection function can be used for UV light sterilization for illumination according to human body detection sensor using visible light UV (405nm +/- 10%) or UVC (275nm, 285nm) It is a product with implemented function.

The LED lighting control device senses the heat or motion of the human body or organism using a microwave (M / W) sensor or an IR sensor, a human body sensor, an ultrasonic sensor, or a proximity sensor, To provide an ultraviolet sterilization function, and to be used as an illumination LED when a human body or an organism is detected.

Smartphone and LED lighting control device combines wireless communication control technology such as BLE, Wi-Fi, ZigBee and Z-Wave to control ultraviolet sterilization and LED for illumination using UV LED over time, The user can control the coloring and dimming of the LED lighting by the sterilizing intensity using the smartphone and the PWM signal.

LED lighting fixtures are used to illuminate the whole area, including tubes, home lighting, floodlights to illuminate the subject, factories, automobile interior lights, outdoor scenery, streetlight security tunnels.

1 is a plan view showing a sterilizing operation on state of a conventional sterilizing apparatus having an ultraviolet light emitting diode.
2 is a block diagram of an LED lighting control apparatus having an illumination and sterilization function according to the human body or organism sensing function according to the present invention.
FIG. 3A is a chart comparing ultraviolet sterilization spectra of UV LEDs (UVC 100-280 nm, UVB 280-315 nm, UVA 315-400 nm) as compared to sunlight.
FIG. 3B is a diagram showing the sanitization nomenclature of a UVC LED having a wavelength of 254 nm and a UVA LED having a wavelength of 405 nm.
Figure 3c is a comparison of a white LED and a 405nm UV LED protecting the environment from harmful bacteria.
FIG. 3D is a view showing a flat panel (face light), a down light (point light), and a linear (line light) of an LED product.
Fig. 4 is a diagram comparing the circuit schemes of the switching power supply (AC-DC converter).
5 is a configuration diagram for operating an LED lighting control device, a general illumination LED, and a UV LED by supplying AC power to a dedicated LED converter capable of mounting or dismounting a wireless communication unit according to an embodiment of the present invention.
FIG. 6 is a flowchart illustrating an LED lighting control method having an illumination and sterilizing function according to a human body or organism sensing function according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of an LED lighting control apparatus having an illumination and sterilization function according to the human body or organism sensing function according to the present invention.

LED lighting control device and method having lighting and sterilizing function according to human body or living organism detection function can be realized by smart phone and LED lighting control device by remote LED ON / OFF through wireless communication such as BLE, Wi-Fi, Z-wave and Zigbee (M / W) sensor after DC power supply in LED lighting control unit connected with LED dedicated converter equipped with BLE communication unit receiving control signal, dimming control signal using lighting control signal and PWM (Pulse Width Modulation) Detecting at least one of the infrared sensor, the PIR sensor, the ultrasonic sensor, and the proximity sensor,

It provides UV sterilization function using UV LED when human body or organism is not detected and is used as illumination LED when human body or organism is detected.

The LED lighting control apparatus having illumination and sterilizing functions according to the human body or organism sensing function can be used for a human body or an organism using a sensor 702 such as a microwave (M / W) sensor, an IR sensor, a PIR sensor, An LED lighting control unit 701 for controlling the LED lighting and ultraviolet light sterilization function depending on whether a human body or an organism used as an illumination LED is detected when a human body or an organism is sensed and providing an ultraviolet light sterilizing function using an UV LED when an organism is not detected, An LED lighting system 700 having a plurality of UV LEDs 709-1 and lighting LEDs 709-2; The LED lighting control unit 701 is connected to the LED lighting control unit 701 having the illumination and sterilizing function of the LED lighting system 700 and receives AC power and supplies DC power. LED-dedicated converters 703, 704, and 705 that can mount or separate the communication unit 705; And the wireless communication unit 705 are connected to the dedicated LED converters 703, 704, and 705 that can be mounted or dismounted and use the wireless communication control technology of BLE, Wi-Fi, ZigBee and Z- Ultraviolet disinfection and LED control for illumination, manual control when user does not want it, remote LED ON / OFF control signal to control sterilization intensity and lighting coloring and dimming by user's smartphone, lighting control Dedicated converters 703, 704, and 705 capable of mounting or detaching the signal, dimming control signal, and passive mode control signal through the wireless communication unit 705 through any one of 2.4 GHz BLE, Wi-Fi, ZigBee, and Z- And a smart phone 900 in which an app to be transmitted is installed.

The LED lighting system 700 includes a sensor using any one of a microwave (M / W) sensor, a IR sensor, a human body detection (PIR) sensor, an ultrasonic sensor, and a proximity sensor 702); The sensor 702 is used to turn off the illumination LEDs 709-2 when no human body or organism is detected and to provide an ultraviolet sterilization function using a plurality of UV LEDs 709-1, A plurality of UV LEDs 709-1 are turned off for safety purposes, and the LED 709-2 for illumination is turned on so that the illumination and disinfecting functions are controlled according to whether a human body or an organism is detected (701); An LED dedicated converter (AC / DC converter 703; PWM pulse drive circuit 704; Wireless communication unit 705]; A dimming control unit 706 for controlling dimming of the LEDs according to a dimming control signal; A storage unit 707 for temporarily storing a remote LED ON / OFF control signal, a dimming control signal, and a passive mode control signal; An LED driving circuit unit 708 connected to the control unit 701 and the dimming control unit 706 for driving ON / OFF of the plurality of UV LEDs 709-1 and the LEDs for illumination 709-2; And an LED lamp 709 having a plurality of UV LEDs 709-1 and illumination LEDs 709-2.

And a timer (not shown) connected to the controller 701 and counting time to provide a reservation function according to the setting data of the smartphone received through the wireless communication unit from the smartphone.

The LED dedicated converter capable of mounting or demultiplexing the wireless communication unit includes an AC / DC converter 703, a PWM pulse driving circuit 704, and a wireless communication unit 705. The wireless communication unit is mounted on the LED dedicated converter, Separated.

The AC / DC converter 703 converts a voltage of, for example, AC 220V supplied from an external AC power source to a predetermined DC power source (DC 12V or DC 5V).

The PWM pulse driving circuit 704 receives a predetermined DC power source (DC 12V or DC 5V) from the AC / DC converter 703 and outputs a PWM (Pulse Width Modulation) (706).

The wireless communication unit 705 receives a remote LED ON / OFF control signal from the smart phone (App) 900 through any one of 2.4 GHz Bluetooth Low Energy (BLE), Wi-Fi, ZigBee, The dimming control signal, and the passive mode control signal to the control unit 701 of the LED lighting system 700.

The LED dedicated converter capable of mounting or detaching the wireless communication unit is manufactured in such a form that the wireless communication unit 750 is mounted or detachable.

The sensor 702 uses either a microwave (M / W), an IR sensor, a human body detection (PIR) sensor, an ultrasonic sensor, or a proximity sensor.

The LED lamp 709 comprises a plurality of UV LEDs 709-1 used for ultraviolet sterilization and the remaining plurality of LEDs 709-2 used for illumination.

The plurality of UV LEDs 709-1 use ultraviolet sterilizing LEDs having wavelengths of UVC 100 to 280 nm, UVB 280 to 315 nm, UVA 315 to 400 nm, or visible light UV (405 nm to 415 nm)

Normal LEDs 709-2 use white LEDs as illumination LEDs 709-2.

The LED driving circuit unit 708 includes a plurality of UV LEDs and a plurality of LEDs connected to the (+) and (-) electrode lines, and a heat sink is connected to the lower end of the LED package to prevent overheating of the heat emitted from the LEDs Or a PTC thermistor (Positive Thermal Coefficient of Resistance Thermistor) or an NTC thermistor (Negative Thermal Coefficient of Resistance Thermistor) on the circuit.

The thermistor is a compound of thermal and resistance. The PTC thermistor is a thermistor whose resistance increases sharply when the temperature rises as opposed to the NTC thermistor. The NTC thermistor has a temperature range of -50 ~ 300 ℃ When the temperature rises, the resistance decreases.

FIG. 3A is a chart comparing ultraviolet sterilization spectra of UV LEDs (UVC 100-280 nm, UVB 280-315 nm, UVA 315-400 nm) as compared to sunlight.

FIG. 3B is a diagram showing the sanitization nomenclature of a UVC LED having a wavelength of 254 nm and a UVA LED having a wavelength of 405 nm.

UV LEDs provide ultraviolet germicidal effect and use LEDs with wavelengths of UVC 100 ~ 280nm, UVB 280 ~ 315nm, UVA 315 ~ 400nm or visible light UV 405nm ~ 415nm for each wavelength.

Ultraviolet rays have germicidal effect by wavelength. UV-A ultraviolet light is used for industrial use because it causes photochemical reaction. It is used for printing coating including UV curing. It is used for skin treatment and medical treatment of atopy and psoriasis. Discriminating machines, discriminating machines for biochemical weapons, and air purifiers. UV-B ultraviolet light is known as the health ray. UV-B has been used for the treatment of skin diseases using UV LEDs with a wavelength of 311 nm. UV-C ultraviolet rays are ultraviolet rays with large energy and are called germicidal rays. It destroys the DNA and RNA of the microorganism and provides a sterilization effect.

In the wavelength range of UV LED used for ultraviolet sterilization, the wavelength of 254 nm has the greatest germicidal power when directly irradiating the microorganism DNA. In addition, ultraviolet rays show a high sterilization effect because of high transmittance even in water. The microbial component consists of protein and nucleic acid. When the ultraviolet light is irradiated, the DNA of the microorganism is destroyed and finally sterilized. Therefore, it is possible to sterilize microorganisms (bacteria, anthrax bacteria, typhoid bacteria, Pseudomonas aeruginosa, E. coli, cholera bacteria, blue mold, various microbial viruses, etc.) in air and water using ultraviolet rays.

Figure 3c is a comparison of a white LED and a 405nm UV LED protecting the environment from harmful bacteria.

FIG. 3D is a view showing a flat panel (face light), a down light (point light), and a linear (line light) of an LED product.

It was implemented as a product that has functions for disinfection outside of lighting according to human body detection sensor using visible light UV LED (405nm +/- 10%) or UVC LED (275nm, 285nm) in the LED luminaire.

The LED lighting control device senses the heat sensing or operation of the human body and the living body using a sensor such as a microwave (M / W) sensor, an IR sensor, a human body sensing (PIR) sensor, an ultrasonic sensor, It uses the UV LED to provide peripheral sterilization when no organism is detected, and is used as an illumination LED when human and living organisms are detected.

Smart phones and LED lighting control devices can control UV LEDs for disinfection with UV LEDs and lighting LEDs over time using wireless communication control technology such as BLE, Wi-Fi, ZigBee and Z-Wave. If it is not desired, it can be controlled manually, and the user can control sterilizing intensity, lighting coloring and dimming using a smartphone.

LED lighting fixtures are used for general illuminating LEDs such as floor lights, tube lights, home lighting, floodlights for illuminating the subject, factories, automobile interior lights, outdoor scenes, and streetlight security tunnels.

An LED dedicated converter capable of mounting or dismounting a wireless communication unit includes a wireless communication unit, a PWM pulse driving circuit, and an AC / DC converter. For example, when AC 220V supplied from an external AC power source is supplied to a predetermined DC power source (DC 12V or DC 5V).

The PWM pulse driving circuit receives a predetermined DC power source (DC 12V or DC 5V) from the AC / DC converter and outputs a PWM (Pulse Width Modulation) pulse width modulation signal for dimming control to the dimming control unit Lt; / RTI >

The LED-dedicated converter that can mount or detach the wireless communication unit is mounted on the LED-dedicated converter, or the wireless communication unit 705 is manufactured in a separate form.

The wireless communication unit 705 receives a remote LED ON / OFF control signal, a dimming control signal, and a remote control signal from a smart phone (App) through any one of 2.4 GHz Bluetooth low energy (BLE), Wi-Fi, ZigBee, And transmits it to the control unit of the LED lighting control apparatus.

In addition, since the smartphone does not have a person at the time of going out or on vacation by using the lighting control app (App), if the UV LED ON / OFF and the general illumination LED OFF are set during a certain period of time And transmits the setting data to the LED-dedicated converter, stores the setting data in the storage unit connected to the control unit of the LED lighting control apparatus, activates the timer connected to the control unit, And provides a reservation function of the control device.

If the wireless communication module is removed from the dedicated LED converter in case of abnormal operation of the wireless communication unit and the wireless communication module is removed, the LED lighting control unit automatically detects the UV LEDs OFF and ON / OFF of illumination LEDs are operated.

Fig. 4 is a diagram comparing the circuit schemes of the switching power supply (AC-DC converter).

The flyback, forward, push-pull, half-bridge, and full-bridge schemes are used in the conventional switching power supply (AC-DC converter) circuit method.

The flyback method is a circuit type that accumulates electric power in the inductor when the switching element is ON and outputs the electric power when it is OFF. It is not suitable for a model having a large output power capacity and is used in a small capacity model. Although it has the advantage of ensuring a wide input voltage range, there is a drawback that a relatively large peak current flows through the switching element and the inductor. The Ringing Choke Converter (RCC) method is a kind of flyback method.

The forward method is a circuit type in which the power is transferred from the primary side to the secondary side when the switching element is ON. Since the circuit configuration is simple and stable, it is used in many switching power supplies. It is used not only for a small output power capacity but also for a relatively large model. High power conversion efficiency can be obtained, but there is a disadvantage in that a large amount of noise is generated in the MHz band.

The push-pull type is a circuit type in which two switching elements are alternately used using two switching elements. Since the efficiency of use of the transformer is increased, the push-pull type can be applied to a model having a relatively large output power capacity.

In the half-bridge method, the circuit operation is the same as the push-pull method. However, since the voltage applied to the transformer is as low as about half of the input voltage, It is applicable to models with large output power capacity and is used for models up to 1kW.

The full bridge method is a circuit method in which a half bridge type input portion is changed to a full bridge. Although the half bridge method is advantageous in that a switching element having a low withstand voltage can be used, circuit configuration and control are complicated as compared with the half bridge method . High power conversion efficiency can be obtained. And is applied to a power source having a large output power capacity.

5 is a configuration diagram for operating an LED lighting control device, an LED for illumination, and a UV LED by supplying AC power to a dedicated LED converter capable of mounting or dismounting a wireless communication unit according to an embodiment of the present invention.

1) When AC power is applied to an LED dedicated converter capable of mounting or dismounting the wireless communication unit 75, a DC 12V or DC 5V power source (e.g., DC 5V) is applied to the wireless communication unit, .

2) Receive LED ON / OFF control, lighting control and UV LED control signal (PWM signal) to LED dedicated converter in wireless communication section.

Remote LED ON / OFF control signal, dimming control signal, dimming control signal and manual mode control signal to control remote LED ON / OFF control, lighting control, UV ultraviolet disinfection according to wireless remote control of smart phone through wireless communication Remote LED ON / OFF control via wireless communication such as BLE, Wi-Fi, Z-Wave, and Zigbee, and a wireless communication unit transmitting a dimming control signal using PWM (Pulse Width Modulation) LED light controller connected to a detachable LED-dedicated converter After the DC power supply is turned on, one or more of a microwave (M / W) sensor, IR sensor, PIR sensor, ultrasonic sensor, Or motion. When the human body or organism is not detected, it functions as a peripheral disinfection function using UV LED. It is used as an illumination LED when a human body or an organism is detected.

3) It is possible to install or separate the wireless communication part in the LED dedicated converter,

If a failure occurs due to a malfunction of the wireless communication unit, the module of the wireless communication unit is removed from the LED dedicated converter, and the general structure is operated manually.

FIG. 6 is a flowchart illustrating an LED lighting control method having an illumination and sterilizing function according to a human body or organism sensing function according to an embodiment of the present invention.

An LED lighting control method having an illumination and sterilizing function according to a human body or an organism sensing function includes a LED dedicated converter (e.g., a wireless communication unit + PWM) connected in a form of a wireless communication unit mounted or separated after an external AC power source (E.g., DC 12V or DC 5V) is supplied from a pulse driving circuit (AC / DC converter), a step of detecting a heat sensation or an operation of a human body or an organism by a sensor of an LED lighting system ); If a human body or an organism is not sensed (S20), the LED for illumination of the LED lamp is turned off and UV light is sterilized by a plurality of UV LEDs (S30); And a step S40 of turning off the UV LED and using the illumination LED for safety purposes when a human body or an organism is detected by the sensor (S20).

The method includes receiving a remote LED ON / OFF control signal or a dimming control signal from a smartphone with an LED dedicated converter (AC / DC converter) capable of loading or unloading the wireless communication unit, Providing a function (S50); And a LED dedicated converter connected to the wireless communication unit in a mounted or separated form transmits a remote LED ON / OFF control signal or a PWM signal for dimming control to a control unit of the LED lighting control unit to drive the LED driving circuit unit and the dimming control unit (S60) remote ON / OFF control of the LED lamp, and dimming control (dimming control) for controlling the brightness with the On / Off duty ratio according to the PWM signal (S70).

Since the person does not exist at the time of going out or on vacation using the app in the smartphone, if the UV LED ON / OFF and the general illumination LED OFF are set for a predetermined time (from-to) And transmits the data to the LED-dedicated converter, stores the data in a storage unit connected to the control unit of the LED lighting control apparatus, activates a timer connected to the control unit, and automatically controls the LED lighting control unit And a step of providing a reservation function of the terminal.

In the above-described method, when the separated wireless communication unit of the LED-dedicated converter fails, the fault diagnosis data is transmitted to the smartphone. When the wireless communication unit is disconnected from the LED-dedicated converter to remove the wireless communication module, Further comprising the step of turning off the UV LEDs by the LED lighting control device and providing the same function as the general illumination so that only ON / OFF of the general illumination LEDs are operated.

The sensor uses one of a microwave (M / W), an IR sensor, a human body detection (PIR) sensor, an ultrasonic sensor, or a proximity sensor.

The dimming control changes the duty cycle of the current pulse to 3 to 4 times the average light output by using pulse width modulation (PWM) for the constant driving current of the LED to control the dimming of the LED.

LED lighting control devices can be applied to indoor lighting, automobile interior lighting, day care lighting, and street lighting.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that various modifications and changes may be made without departing from the scope of the present invention.

700: LED lamp system 701:
702: M / W sensor, IR sensor 703: AC / DC converter
704: PWM pulse driving circuit 705:
706: dimming control unit 707:
708: LED driving circuit portion 709: LED lighting device
709-1: UV LED 709-2: LED for illumination
900: Smartphone

Claims (6)

An LED lighting control unit for controlling the LED lighting or ultraviolet sterilization function depending on whether a human body or an organism is detected by the sensor, an LED lighting system having a plurality of UV LEDs and LEDs for illumination;
A LED communicating unit connected to the LED lighting control unit of the LED lighting system and supplied with AC power to supply DC power and a wireless communication unit supporting BLE, Wi-Fi, Z-Wave and Zigbee, ; And
The wireless communication unit is connected to a dedicated LED converter which can be mounted or separated. By using the BLE wireless communication control technology, it is possible to sterilize ultraviolet rays using UV LEDs over time and control LEDs for illumination, A remote LED ON / OFF control signal, a dimming control signal, and a passive mode control signal to control the sterilizing intensity and lighting color of the smartphone using a smart phone, And a smartphone in which an app (app) for transmitting to a LED-dedicated converter connected to the LED is installed,
Wherein the LED dedicated converter capable of mounting or removing the wireless communication unit includes an AC / DC converter, a PWM pulse driving circuit, and a wireless communication unit, wherein the wireless communication unit is mounted on or separated from the LED dedicated converter,
And transmits the failure diagnostic data to the smartphone when the wireless communication unit fails in the LED-dedicated converter. When the wireless communication unit module is removed from the LED-dedicated converter during the abnormal operation of the wireless communication unit, LED illumination control device with illumination and sterilization function according to human body or organism detection function, which turns off UV LEDs and only ON / OFF of illumination LEDs. The method according to claim 1,
The LED luminaire system
A sensor for detecting a heat or an action of a human body or an organism;
The sensor is used to turn off the illumination LEDs when no human body or organism is detected and to provide an ultraviolet sterilization function using the plurality of UV LEDs and to provide the ultraviolet sterilization function when the human body or organism is detected, A control unit for controlling the illumination and sterilizing functions to be operated according to whether the human body or the living body is detected so as to be used as the illumination LED;
An LED dedicated converter capable of mounting or removing the wireless communication unit;
A dimming control unit for controlling dimming of the LEDs according to the dimming control signal;
A storage unit for temporarily storing the remote LED ON / OFF control signal, the dimming control signal, and the passive mode control signal;
An LED driving circuit unit connected to the control unit and the dimming control unit, for driving ON / OFF of the plurality of UV LEDs and the illumination LEDs;
An LED lamp having the plurality of UV LEDs and the LEDs for illumination; And
A timer for counting time to provide a reservation function according to the setting data of the smartphone received from the smartphone through the wireless communication unit;
And an illumination control function for lighting and sterilizing according to a human body or an organism sensing function. 3. The method of claim 2,
The LED-dedicated converter capable of mounting or demultiplexing the wireless communication unit
An AC / DC converter for converting an AC power supplied from an external AC power supply to a DC power supply;
A PWM pulse driving circuit that receives a predetermined DC power from the AC / DC converter and transmits a PWM signal for dimming control to the dimming control unit; And
Receives the remote LED ON / OFF control signal, the dimming control signal, and the passive mode control signal from the smartphone via any one of BLE, Wi-Fi, ZigBee, and Z-Wave wireless communication, And a wireless communication unit for transmitting the wireless light to the wireless communication unit. The method according to claim 1,
Wherein the sensor is an LED lighting control device having an illumination and sterilization function according to a human body or an organism detection function, using a microwave (M / W), an IR sensor, a human body detection (PIR) sensor, . The method according to claim 1,
The plurality of UV LEDs use ultraviolet sterilizing LEDs having wavelengths of UVC 100 to 280 nm, UVB 280 to 315 nm, UVA 315 to 400 nm, or visible light UV 405 nm to 415 nm,
Wherein the LEDs for illumination use white LEDs, and have illumination and sterilization functions according to a human body or an organism detection function. The method according to claim 1,
When the UV LED ON / OFF and the OFF LED for illumination are set for a certain time (from-to) during going out or leaving the home using the lighting control app, the smartphone transmits the setting data of the smartphone to the LED dedicated converter And a timer connected to the control unit to automatically provide the reservation function of the LED lighting control device according to the setting data of the smartphone according to the preset setting data, LED lighting control device with illumination and sterilization function according to human body or organism detection function.

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