KR101539048B1 - Led lighting appratus, and light control apparatus and method using the same - Google Patents

Abstract

One embodiment of the present invention relates to LED lamp technology. An LED lamp device includes a plurality of LED substrates which include light emitting diodes (LED), respectively, and independently control the LEDs. The LED substrates located on the outermost side among the LED substrates are inclined to at least one remaining LED substrate.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an LED lighting apparatus and a lighting control apparatus using the LED lighting apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED (Light Emitting Diode) lighting technology, and more particularly, to an LED lighting fixture capable of maintaining indoor uniformity constant and an illumination control apparatus and method using the same.

In general, LED lighting fixtures can be placed outdoors or indoors. The room has a difference in brightness depending on the amount of main light introduced from the outside (for example, a window). Because LED lighting fixtures do not take this difference into account, the areas near the windows can be relatively bright, and the areas far from the windows can be relatively dark. As a result, the occupant can feel the visual discomfort due to the difference in the room brightness, and the occupant of the room can also waste energy because the occupant has to turn on the LED lighting apparatus disposed near the window to brighten the farther from the window.

Korean Patent Laid-Open Publication No. 10-2013-0054694 discloses an LED lighting apparatus capable of automatically controlling the illuminance, and the LED lighting apparatus can continuously and automatically control the illuminance in a specific space of the room to be higher than a desired illuminance .

Korean Patent Laid-Open No. 10-2010-0110286 discloses an LED lighting device, and the LED lighting device may not control the illuminance with respect to a change in the intensity of a partially reflected light by an object or a body.

Korean Patent Publication No. 10-2013-0054694 Korean Patent Publication No. 10-2010-0110286

One embodiment of the present invention is to provide an LED lighting apparatus capable of independently controlling a plurality of LED substrates by arranging the outermost LED (Light Emitting Diode) substrates obliquely.

An embodiment of the present invention is to provide an LED lighting apparatus capable of independently controlling a plurality of LED substrates to maintain uniformity of the room.

Among the embodiments, the LED lighting fixture includes a plurality of LED substrates each including an LED (Light Emitting Diode) and capable of independently controlling the LEDs, and the outermost LED substrates among the plurality of LED substrates And at least one remaining LED substrate.

In one embodiment, the at least one remaining LED substrate may include a first LED substrate and a second LED substrate that are separated in a direction of contact with the outermost LED substrates.

In one embodiment, the angle of the tilt can be calculated based on the diffusing angle of light output from the LEDs in the at least one remaining LED substrate. The angle of the inclination may be inversely proportional to the diffusion angle.

Among the embodiments, the LED lighting control apparatus includes a daylight sensor for measuring a daylight inflow amount, an LED lighting apparatus, and a control unit. The LED lighting apparatus includes a plurality of LED substrates each including an LED (Light Emitting Diode) and capable of independently controlling the LEDs, and the outermost LED substrates among the plurality of LED substrates include at least one remaining LED And can be disposed obliquely with respect to the substrate. The control unit may control an amount of output light of each of the plurality of LED substrates based on the amount of incoming light.

In one embodiment, the illuminance sensor further includes a plurality of illuminance sensors that can be temporarily connected to the control unit, wherein the plurality of illuminance sensors measure the illuminance in the process of combining the amounts of light for each of the plurality of LED substrates, And provide the measured illuminance to the control unit. Wherein the plurality of illuminance sensors turn off the LED lighting apparatus when there is the daylight inflow amount and measure the illuminance according to the inflow amount of the main light so that the controller illuminates each of the plurality of sensors based on the measured illuminance It is possible to generate a roughness measurement graph representing the measurement roughness with respect to the measurement point. Here, when the connection with the plurality of illuminance sensors is released, the controller may determine an output light amount of each of the plurality of LED substrates according to the amount of incoming light with reference to the illuminance measurement graph.

In one embodiment, the main light sensor is installed so as to look at the flow direction of main light, and can measure an inflow amount of the main light.

In one embodiment, the at least one remaining LED substrate may include a first LED substrate and a second LED substrate that are separated in a direction of contact with the outermost LED substrates.

In one embodiment, each of the plurality of illuminance sensors may be installed at regular intervals mutually when temporarily connected to the control unit.

In one embodiment, some of the plurality of illuminance sensors may be installed perpendicular to each of the at least one remaining substrate to measure the amount of light output from the LEDs.

Among the embodiments, the LED lighting control method includes the steps of measuring the amount of daylight inflow, and controlling the output light amount of each of the plurality of LED substrates in the LED lighting apparatus based on the amount of daylight inflow. The LED lighting fixture includes a plurality of LED substrates each including an LED and capable of independently controlling the LEDs, wherein the outermost LED substrates of the plurality of LED substrates are arranged on at least one remaining LED substrate And is disposed obliquely.

The LED lighting apparatus according to an embodiment of the present invention can independently control a plurality of LED substrates by arranging the outermost LED (Light Emitting Diode) substrates at an angle.

The LED lighting apparatus according to an embodiment of the present invention can independently control the plurality of LED substrates to maintain uniformity of the room. For example, the LED lighting apparatus can control the plurality of LED substrates, respectively, to lower the brightness of the LED substrate near the window, and to increase the brightness of the LED substrate far away from the window.

1 is a view for explaining an LED lighting apparatus according to an embodiment of the present invention.
Fig. 2 is a perspective view illustrating the substrate portion shown in Fig. 1. Fig.
3 is a view for explaining an LED lighting control apparatus according to an embodiment of the present invention.
Fig. 4 is a view for explaining the LED lighting control apparatus shown in Fig. 3. Fig.
5 is a view for explaining learning of indoor uniformity according to control of a plurality of LED substrates.
FIG. 6 is a graph of the illuminance measurement generated by the controller of FIG. 4 by learning the illuminance according to the amount of daylight inflow.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It should be understood that the term " and / or " includes all possible combinations from one or more related items. For example, the meaning of " first item, second item and / or third item " may be presented from two or more of the first, second or third items as well as the first, second or third item It means a combination of all the items that can be.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

The present invention can be embodied as computer-readable code on a computer-readable recording medium, and the computer-readable recording medium includes all kinds of recording devices for storing data that can be read by a computer system . Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer-readable recording medium may be distributed over network-connected computer systems so that computer readable codes can be stored and executed in a distributed manner.

The LED used in the present invention may be implemented as an LED (Light Emitting Diode) device as an example of a light source, but is not limited thereto.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present application.

1 is a view for explaining an LED lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a LED (Light Emitting Diode) lighting apparatus 100 includes an LED substrate unit 110, a diffusion unit 120, and an adhering plate 130.

The LED substrate unit 110 includes a plurality of LEDs 111 and is inclined from the left and right to the center outward. The LED substrate unit 110 may be connected to and fixed to the lower end of the attached plate 130. Here, the center outward means that a plurality of LEDs 111 face outward.

The diffusion portion 120 may be formed to be substantially over the LED substrate portion 110 and cover the LED substrate portion 110 and may be combined with the adhesive plate 130. The diffusion unit 120 covers the outside of the LED substrate 110 for indoor illumination and diffuses the light of the LED having a strong directivity.

2 is a perspective view illustrating the LED substrate unit 110 shown in FIG.

Referring to FIG. 2, the LED substrate unit 110 includes a plurality of LED substrates 110-1 to 110-4.

The plurality of LED substrates 110-1 to 110-4 each include a light emitting diode (LED). The LEDs in each of the plurality of LED substrates 110-1 to 110-4 can be independently controlled.

The outermost LED substrates 110-1 and 110-2 among the plurality of LED substrates are disposed obliquely to at least one remaining LED substrate 110-3 to 110-4. In one embodiment, the at least one remaining LED substrate 110-3 - 110-4 may be disposed on substantially the same plane. In one embodiment, the at least one remaining LED substrate 110-3 - 110-4 may have substantially the same area. On the other hand, the same plane or the same area as described above is only an embodiment, and may have another plane or another area.

At least one of the remaining LED substrates 110-3 to 110-4 is divided into a contact surface with the outermost LED substrates. For example, when the contact surface is formed in the longitudinal direction, at least one of the remaining LED substrates 110-3 to 110-4 may be formed in the same longitudinal direction.

Hereinafter, the inclination angle a between the outermost LED substrates 110-1 and 110-2 and at least one remaining LED substrate 110-3 to 110-4 will be described.

The inclination angle a can be calculated based on the diffusion angle a of the light output from the LEDs on the remaining LED substrates 110-3 to 110-4. Here, the diffusing angle (b) is related to the diffusivity of light, and this diffusivity can be mainly determined by the characteristics of the LED and the characteristics of the diffusion portion 120. In one embodiment, the tilt angle a may form an inverse relationship with the diffusion angle b. For example, the diffusion angle b may become larger as the inclination angle a becomes smaller, and the diffusion angle b may become smaller as the inclination angle a becomes larger.

For example, when the diffusing angle b is 120 °, the LED substrates 110-1 to 110-2 located at the outermost portions of the LED substrate portion 110 are connected to the remaining LED substrates 110-3 to 110-4, And the LED substrates 110-1 to 110-2 located at the outermost portions of the LED substrate portion 110 when the diffusion angle b is 140 deg. 110-3 to 110-4) and an inclination angle (a) of 40 [deg.].

3 is a view for explaining an LED lighting control apparatus according to an embodiment of the present invention.

Referring to FIG. 3, the LED lighting control apparatus 300 includes an LED lighting apparatus 100, a main light sensor 310, a plurality of illuminance sensors 320, and a control unit 330.

Since the LED lighting apparatus 100 has been described with reference to Figs. 1 and 2, a detailed description thereof will be omitted.

The main light sensor 310 is installed so as to observe the incoming direction of the main light, and measures the amount of incoming light of the main light. 3, the main light can flow in the window 340 and the main light sensor 310 can measure the amount of daylight inflow generated in the direction of the window 310-1. In one embodiment, the main light sensor 310 can transparently configure the cover so that the main light is introduced through the window direction 310-1, The cover can be made opaque.

The plurality of light intensity sensors 320 measure the illuminance in the process of combining the amounts of light for each of the plurality of LED substrates 110-1 to 110-4 of the LED substrate unit 110, And provides the measured illuminance to the control unit 330. FIG. The illuminance thus measured is used by the control unit 330 to determine the output light amount of each of the plurality of LED substrates 110-1 to 110-4 after the plurality of illuminance sensors 320 are disconnected.

The plurality of illuminance sensors 320 are installed at regular intervals between the illuminance sensors 320 when they are temporarily connected to the controller 330. For example, the distance between the first and second illuminance sensors 320-1 and 320-2 may be substantially the same as the distance between the second and third illuminance sensors 320-2 and 320-3. In one embodiment, some of the plurality of illuminance sensors 320 are arranged on substantially the same plane to measure the amount of light output from the plurality of LED substrates 110-1 to 110-4, -3 to 110-4, respectively.

For example, the third and fourth LED substrates 110-3 and 110-4 may be installed in a direction perpendicular to the second illuminance sensor 320-2 to measure illuminance.

The control unit 330 performs learning through the plurality of illuminance sensors 320 and, when the amount of daylight is measured, controls the LED lighting apparatus 100 to provide indoor illumination of uniform illumination. Hereinafter, the control unit 330 will be described in more detail with reference to FIG.

Fig. 4 is a view for explaining the LED lighting control apparatus shown in Fig. 3. Fig.

4A illustrates a process in which the controller 330 learns room uniformity through the plurality of illuminance sensors 320. FIG. 4B illustrates a process in which after the plurality of illuminance sensors 320 are removed, 310 to control the LED lighting apparatus 100 will be described.

4A, the control unit 330 connects the main light sensor 310 and the plurality of illuminance sensors 320 and receives the illuminance measured by each of the illuminance sensors 320-1 to 320-7 according to the amount of daylight inflow . 5 illustrates a process in which the control unit 330 learns the illuminance measured by the illuminance sensors 320-1 through 320-7 in the case where there is no daylight inflow (for example, at night), and FIG. The control unit 330 learns the illuminance according to the amount of daylight inflow to generate the illuminance measurement graph 600. In this case,

5A, the controller 330 turns on a single substrate (for example, the fourth substrate 110-4) of the LED lighting apparatus 100 and measures the illuminance measured by the plurality of illuminance sensors 320 .

5B, the control unit 330 lights the third and fourth substrates 110-3 and 110-4 of the LED lighting apparatus 100 and acquires the illuminance measured by the plurality of illuminance sensors 320 do.

5C, the control unit 330 lights up the second to fourth substrates 110-2 to 110-4 of the LED lighting apparatus 100 and acquires the illuminance measured by the plurality of illuminance sensors 320 do.

5C, the control unit 330 lights all of the plurality of substrates 110-1 to 110-4 of the LED lighting apparatus 100 and acquires the illuminance measured by the plurality of illuminance sensors 320 do.

5A to 5D, the control unit 330 calculates the illuminance increase / decrease trend expression for each illuminance measurement point according to the dimming of the LED lighting apparatus 100 for each substrate. That is, the control unit 330 can learn the illuminance that can be measured at the illuminance measurement point and can be increased or decreased by each substrate of the LED lighting fixture 100. [ Here, the illuminance measurement point may correspond to the measurement position of each of the plurality of illuminance sensors 320.

6, when there is a daylight inflow amount in the daytime, the controller 330 turns off the LED lighting apparatus 100, measures the illuminance according to the amount of daylight inflow through the plurality of illuminance sensors 320, and measures Thereby generating a roughness measurement graph 600 representing the roughness.

In the illuminance measurement graph 600, the illuminance measured by each illuminance sensor 330-1 to 330-7 may be proportional to the amount of daylight inflow. For example, the illuminance of the first illuminance sensor 330-1 closest to the window 340 with respect to the same main illuminance may be greater than the illuminance of the seventh illuminance sensor 330-7 farthest from the window 340 .

The controller 310 can receive the measured illuminance through the illuminance sensors 330-1 through 330-7 according to the amount of daylight inflow to perform the interpolation and consequently generate the illuminance measurement graph 600 .

Referring again to FIG. 4, when the connection with the plurality of illuminance sensors 320 is released, the control unit 310 refers to the illuminance measurement graph 600 and displays a plurality of LED substrates 110-1 to 110-4 ) Is determined.

More specifically, the control unit 310 receives the daylight inflow amount through the daylight sensor 320. For example, the amount of daylight inflow may correspond to 50, as shown in FIG.

The control unit 310 can predict the measurement illuminance expected to be measured by the plurality of illuminance sensors 320 based on the amount of daylight inflow. Here, the meaning of prediction is that a plurality of illuminance sensors 320 are disconnected and therefore measured by a plurality of virtual illuminance sensors. For example, the illuminance measured by the plurality of virtual illuminance sensors may correspond to 2800, 2000, 1000, 600, 200, 10, and 0, respectively, as shown in FIG.

The control unit 310 controls the LED lighting apparatus 100 to determine the amount of output light of each of the plurality of LED substrates 110-1 to 110-4 based on illuminance increase / And controls the output light amount of each substrate of the lighting apparatus 100. [ In one embodiment, the control unit 310 controls the brightness of the remaining points based on the brightest spot (i.e., the virtual first illuminance sensor 320-1) The amount of light can be controlled. For example, since the roughnesses measured by the virtual second to seventh roughness sensors 320-2 to 320-7 are 2800, 2000, 1000, 600, 200, 10, 0, The illuminance measured by the virtual second through seventh illuminance sensors 320-2 through 320-7 is about 2800 through the illumination intensity increasing and decreasing tendency expression for each measurement point, The amount of light can be controlled.

100: LED lighting fixture
110: LED substrate part
111: LED
120:
130: Attached
300: LED lighting control device
310: Daylight sensor
320: Illumination sensor
330:
600: Illuminance measurement graph

Claims (13)

A plurality of LED substrates each including a LED (Light Emitting Diode) and capable of independently controlling the LEDs;
A daylight sensor for measuring an amount of daylight inflow by blocking inflow of daylight entering in a direction opposite to the inflow of the daylight by looking at an inflow direction of the daylight;
A plurality of illuminance sensors each for measuring the illuminance according to the measured inflow amount of the main light when the LED is turned off for each illuminance measurement point and for measuring the illuminance of the plurality of LED substrates when there is no inflow amount of the main light; And
Calculating roughness increasing / decreasing tendency expressions for each roughness measurement point by learning the roughness that can be increased or decreased by each of the plurality of LED substrates based on the roughness of each LED substrate measured by each of the plurality of roughness sensors, And controlling the output light amount of each of the plurality of LED substrates based on the illuminance increase amount and the illuminance increase and decrease expression of the plurality of light intensity sensors so that the maximum light amount reaches each of the illuminance measurement points at which the plurality of illuminance sensors are located. And a control unit for providing indoor illumination.
delete delete delete delete delete The apparatus of claim 1, wherein the plurality of illuminance sensors
Wherein the control unit is configured to measure the illuminance of the plurality of LEDs based on the measured illuminance, and to measure the illuminance of each of the plurality of sensors based on the measured illuminance, And generates an illuminance measurement graph representing illuminance.
8. The apparatus of claim 7, wherein the control unit
Wherein the controller determines the output light amount of each of the plurality of LED substrates according to the amount of main light inflow with reference to the illuminance measurement graph when the connection with the plurality of illuminance sensors is disconnected.
delete delete 2. The apparatus of claim 1, wherein each of the plurality of illuminance sensors
Wherein the illuminance is measured in a process of combining light quantities for each of the plurality of LED substrates, and the LED illuminance control unit is installed at a predetermined interval and is temporarily connected to the control unit.
2. The apparatus of claim 1, wherein some of the plurality of illuminance sensors
Wherein the plurality of LEDs are installed in a direction perpendicular to each of the at least one substrate disposed on substantially the same plane to measure an amount of light output from the plurality of LED substrates.
Disposing a plurality of independently controllable LED substrates;
Measuring a daylight inflow amount by blocking the inflow of the main light entering in a direction opposite to the inflow of the main light when viewing the direction of incoming of the main light;
Measuring light intensity according to the measured main light inflow amount in a state in which the plurality of LED substrates are turned off for each illumination point and measuring light intensity of each of the plurality of LED substrates in the absence of the night light inflow amount; And
Calculating illuminance increase / decrease amount expressions for each illuminance measurement point by learning illuminance that can be increased or decreased by each of the plurality of LED substrates based on illuminance by each of the measured plurality of LED substrates, And controlling the amount of output light of each of the plurality of LED substrates on the basis of the illumination intensity increasing and decreasing rate expression so as to illuminate a room illuminance of uniform illuminance so that a maximum light amount can reach each illuminance measurement point on which the plurality of illuminance sensors are located Said LED lighting control method comprising the steps of:

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