KR101736766B1 - self-dimming equipment of LED lamp - Google Patents

Abstract

The present invention relates to a self-dimming device of an LED lighting lamp which can reduce management costs as well as prevent light pollution caused by unnecessary lighting. The present invention provides the self-dimming device of the LED light lamp comprises: an SMPS installed in the lighting lamp of a public facility having a street lamp, a security lamp and a tunnel lamp to supply power to the lighting lamp; and a dimming controller controlling supply time and voltage of the power supplied to the lighting lamp by the SMPS to control the lighting time and brightness of the lighting lamp, wherein the dimming controller includes: a microprocessor provided with a control program controlling on/off and brightness of lighting by each lighting time band according to signals received from GPS receiving modules; a brightness signal output unit controlling the SMPS by the control program of the microprocessor; the GPS receiving module receiving the GPS signals, calculating the position of the sun in accordance with the position where the lighting lamp is installed, transmitting the position of the sun to the microprocessor and controlling the lighting of the lighting lamp; a remote signal receiving unit receiving the lighting time and the brightness control signal of the lighting lamp from a remote controller; and the remote controller inputting the lighting time and the brightness control signal of the lighting lamp set in the control program of the microprocessor via the remote signal receiving unit.

Description

Self-dimming equipment of LED lamp

The present invention relates to a dimming device for an LED lighting device, and more particularly, to a self-dimming device for an LED lighting device that can prevent light pollution due to unnecessary lighting and reduce a management cost.

In general, street lights for street or pedestrian lighting are used to eliminate restrictions on nighttime activities by maintaining the visual ability of local residents and vehicle drivers to the same level as daytime. Street light also enhances traffic safety and road use efficiency, and also carries out crime prevention functions.

However, conventionally, only simple street lights are turned on and off, and energy is wasted because proper control is not performed even at the late night hours or when the vehicle traffic is not frequent. One method to save energy is to run lights on and off one by one, but the brightness uniformity of the road surface is considerably low, which causes traffic accidents at night.

Various techniques have been developed to overcome such disadvantages, for example Patent Documents 1 to 3.

Patent Document 1 discloses an LED lamp in which a plurality of LEDs (Light Emitting Diodes) are connected; An LED ballast to maintain the voltage applied to the LED lamp constant to maintain the brightness of the LED lamp constant; A dimming ballast connected between the LED lamp and the LED ballast for driving the LED lamp to adjust the brightness of the LED lamp according to a control signal; And a louver controller for providing a dimming ballast with a control signal for determining the brightness of the LED lamp,

Patent Document 2 discloses a lighting apparatus that uses the half-time and the light-off time corresponding to half of the total lighting time from the immediately lighting time to the immediately-before-lighting time of the first to Nth lighting fixtures according to ON / And a main controller for transmitting a dimming signal having a dimming time and dimming power for realizing a dimming start and a dimming end at the next OFF time from the first dimming controller to the Nth dimming controller,

Patent Document 3 discloses a distribution box control unit for generating control signals relating to time and power information data for dimming or power saving of LED collective lamps; A distribution box control signal transmission / reception unit for transmitting the control signal generated by the distribution box control unit to the equipotential controller; And a distribution box AC coupling unit for modulating a control signal output from the distribution box control signal transmission / reception unit and loading the control signal on a power line, the collective illumination light distribution box control device and the collective illumination light distribution box control device provided in the collective illumination light distribution box for managing the point / An equal AC coupling portion receiving a control signal carried on a power line; An equalizing control signal transmitting / receiving unit for demodulating the control signal received from the equalizing AC coupling unit; A regulator for receiving a control signal from the regulator control signal transceiver to generate a PWM power saving signal; An LED power supply connected to the power line to provide power to the LED cluster light; And a PWM power saving unit for receiving the PWM power saving signal from the lamp control unit and converting the DC power provided from the LED power supply unit into the PWM power and applying the PWM power to the LED group lighting lamp.

Such conventional dimming control apparatuses for LED lights typically include a system dimming system that controls lighting of an illumination lamp in a single reception system, such as a streetlight or a tunnel, and a dimming control system that groups lighting lamps in a predetermined space such as an office or a parking lot, There is a problem that the dimming devices used in one system can not be used in other systems because the dimming devices are not compatible with each other.

Also, in a single reception system such as a streetlight, a tunnel, etc., CDMA communication is used between a control center and a distribution box, and PLC (Power Line communication) communication between a distribution box and a tunnel or a streetlight device or wired / wireless communication such as Zigbee or Bluetooth is used Operation is complicated and there is a disadvantage of cost increase.

In addition, a building uses a microwave sensor or a motion sensor that operates by detecting movement of a person or object. In this case, there is a malfunction that works on movement of a small animal or a ball, There is a disadvantage.

Particularly in the case of residential areas such as residential areas and shopping malls, about 70% of the total security lights are installed in Jeonju and Jeonju in the case of KEPCO. In this case, There is a problem in that it is difficult to apply wired communication such as PLC communication because there are a plurality of power receiving system and there is a problem that it is difficult to implement and manage even if wireless communication is used even if a plurality of distribution boxes are formed in each section of the KEPCO electric line.

On the other hand, as a method of turning on or off the lights of the streetlight or the security lamp, an electronic flasher for turning on and off the lights according to the sunrise sunset time provided by the Korea Meteorological Administration, and a photoelectric flasher incorporating an optical sensor operating according to the illuminance of the sun In the case of the electronic flicker, there is a disadvantage in that a time error of about 2 hours per year occurs. In the case of the photoelectric type flicker, there is a problem that malfunction occurs depending on the illuminance on a cloudy day.

Korean Patent No. 10-1344568 Korean Patent No. 10-1302394 Korean Patent No. 10-1471653

It is an object of the present invention to provide an LED lighting self-dimming apparatus which can prevent light pollution due to unnecessary lighting as well as reduce a maintenance cost .

Further, the present invention can set a precise sunrise and sunset time by using a dimming controller having a GPS receiving module and a dimming control program, and apply lighting and light-off times according to sunrise and sunset times, And it is an object of the present invention to provide a self-dimming device for an LED lamp which can vary the illumination intensity according to the external illuminance.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided an LED dimming self-dimming apparatus comprising: an SMPS installed in an illumination unit of a common facility including a streetlight, And a dimming controller for controlling a lighting time and an illuminance of a lighting lamp by controlling a supply time and a voltage of a power supplied from the SMPS to the lighting lamp, the dimming controller comprising: A microprocessor having a control program for controlling on / off and illuminance of illumination for each lighting time zone in accordance with the signal; An illuminance signal output unit for controlling the SMPS by a control program of the microprocessor; A GPS receiving module for receiving the GPS signal and calculating the position of the sun according to the position where the lighting lamp is installed and transmitting the calculated position to the microprocessor to control lighting of the lighting lamp; A remote signal receiving unit for receiving the lighting time and illumination control signal of the illumination lamp from the remote controller; And a remote controller for inputting a lighting time and an illumination control signal of the illumination lamp set in the control program of the microprocessor through the remote signal receiving unit.

The dimming controller may be integrated with the SMPS.

The SMPS includes a power factor control unit including a power saving circuit for maintaining a constant DC voltage and improving a power factor to improve power efficiency; A constant current control unit for keeping the output current constant; And a dimming signal input unit for receiving the voltage and varying the reference voltage to change the output current from 10 to 100%.

The SMPS further includes a PWM counter unit for detecting an output voltage and comparing the output voltage with a reference voltage and comparing the output of the comparator with a triangle wave to control the duty ratio and an output filter unit for outputting a pure DC voltage after removing the counter- .

INDUSTRIAL APPLICABILITY As described above, the LED dimming self-dimming device according to the present invention has the advantage of being installed in each dimmer of the system dimming, group dimming, or different receiving systems with arc completion.

Further, since the present invention can control the lighting lamp more efficiently, it is possible to reduce the waste of electric power by unnecessary lighting, and it is also possible to prevent the person around the person from being interrupted by the light by the light .

FIG. 1 is a block diagram of a self-dimming device for LED lighting of the present invention
FIG. 2 is a circuit diagram of an example of an SMPS constituting a self-dimming device for an LED illumination light according to the present invention
FIG. 3 is a circuit diagram of an example of a dimming controller constituting a self-dimming device for LED lighting lamps according to the present invention

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

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

INDUSTRIAL APPLICABILITY The present invention can prevent light pollution due to unnecessary lighting, and can reduce management costs.

As shown in FIG. 1, the LED lighting self-dimming apparatus according to the present invention includes an SMPS 10 installed in an illumination lamp of a common facility including a street lamp, a security lamp, a tunnel, etc. to supply power to the lamp; And a dimming controller 20 for controlling the lighting time and illumination of the lighting lamp by controlling the supply time and voltage of the power supplied from the SMPS to the lighting lamp.

As described above, the self-dimming device of the present invention may be detachable to the SMPS 10 or may be provided with the dimming controller 20 integrally therewith.

As described above, the dimming controller 20 can be integrally formed or detachably installed in the SMPS 10, and can accurately set the sunset time and the sunrise time by receiving GPS signals in real time, Can be controlled by a program.

The dimming controller 20 includes a microprocessor 21 having a control program for controlling on / off and illuminance of illumination according to a signal received from the GPS receiving modules in accordance with illumination time zones. An illumination signal output unit (22) for controlling the SMPS by a control program of the microprocessor; A GPS receiving module 23 for receiving the GPS signal and calculating the position of the sun according to the position where the lighting lamp is installed and transmitting the calculated position to the microprocessor so as to control lighting of the lighting lamp; A remote signal receiving unit (24) for receiving the lighting time and illumination control signal of the illumination lamp from the remote controller; And a remote controller 25 for inputting lighting time and illumination control signals of the illumination lamp set in the control program of the microprocessor through the remote signal receiver.

The microprocessor 21 not only controls driving of each component constituting the dimming controller but also drives a control program for dimming control.

The dimming control program driven by the microprocessor controls the supply of power to the LEDs based on the GPS signal of the corresponding area received by the GPS receiving module 23, that is, the position signal of the corresponding area, And sends a control signal to the SMPS.

The illumination signal output unit 22 receives the control signal output by the dimming control program of the microprocessor and controls the SMPS.

The GPS receiving module 23 receives a position signal from a GPS satellite, calculates a sunrise and sunset time of the microprocessor based on the position information, and calculates a lighting time and an off time according to the sunrise and sunset times .

The lighting time and the light-off time set by the dimming control program can be set arbitrarily by the user. However, even if the sunset time is reached, .

Of course, the illuminance during the lighting time can be adjusted by the dimming control program, and the user can arbitrarily set the illuminance in the dimming control program through the input / output device.

The illuminance controlled by the dimming control program can be variously set according to the external environment due to sunrise and sunset and the place where the LED lighting lamp is installed, but it can be generally set based on sunrise and sunset time, As shown in Fig.

As described above, an input / output device is required to set a desired illuminance. The input / output device may be modified in various ways. Preferably, the input / output device can be remotely input and output. 25).

The remote controller 25 can be separately manufactured only for the control of the streetlight, but it is possible to install and use an application for illumination control in a portable terminal including a commonly used mobile terminal, that is, a smart phone.

In order to set the dimming using the remote controller 25, the remote signal receiving unit 24 is provided. The remote signal receiving unit 24 may be configured as an input / output port so that the remote controller can be connected to the remote controller by using a cable. However, it is desirable to make it possible to wirelessly transmit / receive a signal because there is an inconvenience that the user should visit the corresponding street lamp and enter the illumination control signal.

As shown in FIG. 3, the remote signal receiving unit 24 may include a GPS signal receiving unit 24g for receiving signals of the GPS receiving module and a remote signal receiving unit 24r for receiving signals of the remote controller.

Of course, the dimming controller 20 is provided with an AUX power supply 26 for supplying power to the components including the microprocessor. When the power is not supplied to the AUX power supply, the dimming controller 20 performs a basic function of the dimming controller The auxiliary power supply unit 27 is provided.

In addition, a real time clock (RTC) 28 is provided so that the current time can be accurately maintained even when power is not supplied.

Reference numeral 29 denotes an SMPS output section for outputting the control signal of the dimming controller 20 to the power supply apparatus 10. [

As described above, the dimming controller 20 configured as described above functions to control the power supplied to the LED street lamp by controlling the power supply device, that is, the driving of the SMPS 10, and the SMPS 10 has various variations However, the following is an example.

1 and 2, the SMPS 10 includes a power factor control unit 11 including a power saving circuit for maintaining a constant DC voltage and improving power factor to improve power efficiency; A constant current control unit (12) for keeping the output current constant; And a dimming signal input unit 13 that receives a voltage and varies a reference voltage to change an output current from 10 to 100%.

The power factor control unit 11 functions to reduce power loss generated in the process of converting a commercial AC power source into a DC power source required for driving an LED, and it is preferable to use an active PFC rather than a passive method. By using PFC, it is possible not only to reduce electromagnetic waves, but also to reduce unnecessary power consumption and suppress temperature rise caused by unnecessary currents being converted into heat. In addition, since the generation of heat can be reduced, unnecessary power for heat dissipation can be reduced or the configuration of the apparatus can be simplified.

The constant current controller 12 has a function of outputting the DC converted power to a constant LED and may be composed of a plurality of filters.

 The dimming signal input unit 13 controls the voltage supplied to the LEDs by the dimming controller 20 according to a control signal.

The SMPS 10 includes a PWM counter 14 for detecting an output voltage so as to drive the LED more stably and comparing the output voltage with a reference voltage, comparing the output of the comparator with a triangle wave to control a duty ratio, And an output filter unit 15 for outputting the DC voltage as a pure DC voltage.

As shown in FIG. 2, the PWM counter unit 14 compares the output voltage with the reference voltage, compares the output of the comparator with the triangular wave, and controls the duty ratio (DUTY: ON-OFF ratio) And a drive control unit for supplying the PWM signal to the switch by amplifying the square wave output from the PWM control unit and adjusting the time (TIME).

As shown in the figure, the output filter unit 15 rectifies the AC voltage of the high frequency transmitted from the secondary winding of the transformer of the preceding stage to a square wave voltage after removing the back electromotive force, and converts the rectified square wave voltage into a pure DC voltage , As shown in the figure, an LC filter circuit.

As described above, the LED lighting self-dimming device according to the present invention calculates the sunrise and sunset times according to the GPS signal received by the GPS reception module, thereby enabling more accurate illumination power on / off. The dimming controller 20 By inputting the desired time and illumination into the provided dimming control program, desired illumination can be maintained at a desired time.

10: SMPS
11: Young's modulus control unit 12: Constant current control unit
13: dimming signal input section 14: PWM counter section
15: output filter section 16: AUX power section
20: Dimming controller
21: Microprocessor 22: Illumination signal output section
23: GPS receiving module 24: remote signal receiving section
25: remote controller 26: AUX power section
27: auxiliary power unit 28: RTC
29: SMPS output section

Claims (4)

An SMPS 10 installed in an illumination lamp of a common facility including a street lamp, a security lamp, and a tunnel, and supplying power to the lamp; And a dimming controller (20) controlling the lighting time and illumination of the lighting lamp by controlling the supply time and voltage of the power supplied from the SMPS to the lighting lamp,
The dimming controller 20 includes a microprocessor 21 having a control program for controlling on / off and illuminance of illumination according to a signal received from the GPS receiving modules according to illumination time zones; An illumination signal output unit (22) for controlling the SMPS by a control program of the microprocessor; A GPS receiving module 23 for receiving the GPS signal and calculating the position of the sun according to the position where the lighting lamp is installed and transmitting the calculated position to the microprocessor so as to control lighting of the lighting lamp; A remote signal receiving unit (24) for receiving the lighting time and illumination control signal of the illumination lamp from the remote controller; And a remote controller (25) for inputting a lighting time and an illumination control signal of the illumination lamp set in the control program of the microprocessor through the remote signal receiver,
The SMPS 10 includes a power factor control unit 11 including a power saving circuit for maintaining a constant DC voltage and improving a power factor to improve power efficiency; A constant current control unit (12) for keeping the output current constant; A dimming signal input unit 13 for receiving a voltage and changing a reference voltage to change an output current from 10 to 100%; A PWM counter 14 for detecting an output voltage and comparing the output voltage with a reference voltage, comparing the output of the comparator with a triangular wave to control the duty ratio; And an output filter unit (15) for removing the counter electromotive force from the AC voltage and outputting it as a pure DC voltage,
The dimming controller 20 includes an AUX power supply 26 for supplying power to components including a microprocessor and an auxiliary power supply unit 26 for performing a basic function of the dimming controller when power is not supplied from the AUX power supply unit 27), and a real time clock (RTC) (28) for accurately maintaining the present time even when power is not supplied,
The remote signal receiving unit 24 comprises a GPS signal receiving unit 24g for receiving a signal of the GPS receiving module and a remote signal receiving unit 24r for receiving a signal of the remote controller,
The illuminance controlled by the dimming control program of the microprocessor turns on the LED illumination only when the human being is detected. It is 70% of the maximum brightness from 21 to 24 hours after sunset, and the maximum brightness 100%, 50% of maximum brightness from 24 to 01 o'clock to 04 o'clock, and 70% of maximum brightness from 04 to 05 o'clock to sunrise.
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