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WO2011068308A2 - Système d'éclairage et procédé d'éclairage l'utilisant - Google Patents

Système d'éclairage et procédé d'éclairage l'utilisant Download PDF

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Publication number
WO2011068308A2
WO2011068308A2 PCT/KR2010/007414 KR2010007414W WO2011068308A2 WO 2011068308 A2 WO2011068308 A2 WO 2011068308A2 KR 2010007414 W KR2010007414 W KR 2010007414W WO 2011068308 A2 WO2011068308 A2 WO 2011068308A2
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WO
WIPO (PCT)
Prior art keywords
luminance
signal
lighting
divided
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2010/007414
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English (en)
Korean (ko)
Other versions
WO2011068308A3 (fr
Inventor
정연문
정강화
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIGHTGREEN CONCEPT CO Ltd
Original Assignee
LIGHTGREEN CONCEPT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LIGHTGREEN CONCEPT CO Ltd filed Critical LIGHTGREEN CONCEPT CO Ltd
Publication of WO2011068308A2 publication Critical patent/WO2011068308A2/fr
Publication of WO2011068308A3 publication Critical patent/WO2011068308A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • the present invention relates to an illumination system and an illumination method using the same, and more particularly, to an illumination system capable of controlling luminance for each region and an illumination method using the same.
  • Lighting equipment such as fluorescent lamps, incandescent lamps and LEDs are essential for night activities.
  • the conventional lighting method is a method of installing a light fixture for outputting a constant intensity of light in the area illuminating the light.
  • Another conventional method that is advanced from the conventional method is a method in which a user can adjust the light output of the luminaire according to the situation by installing a switch for adjusting the intensity of light in the luminaire.
  • this method also has a limitation in providing illumination of uniform brightness over the entire area since the illumination is collectively performed on the entire area to be illuminated by one or a plurality of lighting fixtures.
  • the problem to be solved by the present invention is to provide a lighting system and an illumination method using the same by individually controlling the lighting fixtures that perform illumination in the area to be illuminated, to provide a uniform brightness of the entire area.
  • the illumination system of the present invention for solving the above problems, the imaging device for outputting an image signal by photographing the entire area of the illumination of the plurality of lighting fixtures; A signal separator for separating and outputting a luminance signal and a resolution signal from the image signal input from the image photographing apparatus; An entire area luminance calculator for calculating the luminance (total luminance) of the entire area using the luminance signal and the resolution signal; A divided region luminance calculator for dividing the entire region into a plurality of divided regions and calculating luminance for each divided region using the luminance signal and the resolution signal; And a controller that compares the overall luminance with the luminance of each of the divided regions, and individually controls the light output of the lighting apparatuses that are in charge of each of the divided regions.
  • the control unit may output a control signal to increase the light output of the lighting apparatus corresponding to the divided area having lower luminance than the overall luminance among the divided areas.
  • the controller outputs a control signal to increase the light output of the lighting apparatus corresponding to the divided region having low brightness, and lowers the light output of the lighting apparatus corresponding to the divided region having high brightness so that the overall brightness is kept constant.
  • controller may output a control signal to each lighting device such that the luminance of each divided area is the same.
  • the image capturing apparatus may be a CMOS image sensor or a photo image sensor
  • the lighting apparatus may be an LED lamp
  • the control signal output from the controller may be a voltage signal for adjusting the light output of the LED lamp.
  • the illumination method of the present invention for solving the above problems, (a) the image photographing apparatus for photographing the entire area in which the plurality of lighting fixtures illuminate to output an image signal; (b) a signal separating unit separating and outputting a luminance signal and a resolution signal from an image signal input from the image photographing apparatus; (c) an overall area luminance calculation unit calculating a luminance (total luminance) of the entire region by using the luminance signal and the resolution signal; (d) dividing the entire region into a plurality of divided regions by the divided region luminance calculating unit and calculating luminance for each divided region by using the luminance signal and the resolution signal; And (e) the control unit comparing the total luminance with the luminance of each of the divided regions, and individually controlling the light output of the lighting apparatuses that are in charge of the respective divided regions among the plurality of lighting apparatuses.
  • the controller may output a control signal to increase the light output of the lighting fixture corresponding to the divided region of the lower luminance than the overall luminance among the divided regions.
  • control unit outputs a control signal to increase the light output of the lighting fixture corresponding to the divided region having a low luminance, so that the overall luminance is kept constant, and corresponds to the divided region having a high luminance.
  • the control signal may be output to lower the light output of the lighting fixture.
  • control unit may output a control signal to each lighting device so that the luminance of each divided region is the same.
  • the image capturing apparatus may be a CMOS image sensor or a photo image sensor
  • the lighting apparatus may be an LED lamp
  • the control signal output from the controller may be a voltage signal for adjusting the light output of the LED lamp.
  • an image signal is generated by capturing an entire area of illumination by using a CMOS image sensor or a photo image sensor, and a luminance signal and a resolution signal are separated from the generated image signal, and then the luminance signal and the resolution signal are used.
  • After calculating the luminance of each divided region using the luminance of the entire region and the luminance signal of each divided region which is divided into a plurality of divided regions it is responsible for illumination of each divided region using the calculated total luminance and the luminance of the divided regions.
  • the present invention receives the user's preferred color temperature from the user, by using the color temperature correction function, through the RGB analysis according to the lighting environment or the user's preference to adjust the cold light (6500K) or warm illumination light (3000K) Emotional lighting can be realized.
  • 1 and 2 are diagrams illustrating the concept of the illumination method of the present invention.
  • FIG. 3 is a block diagram showing the configuration of a lighting system according to a preferred embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating a lighting method according to a preferred embodiment of the present invention.
  • FIGS. 1 and 2 illustrate the concept of the illumination method of the present invention.
  • the light output of the lighting device 20 is maintained so that a constant luminance is always maintained in the entire area 10 where the lighting is illuminated. To control.
  • each lighting apparatus 20-1 to 20-4 is performed as a whole.
  • the area is mainly responsible for a certain area of lighting.
  • the entire area of the quadrangle is divided into four areas 10-1 to 10-4, and four lighting fixtures are respectively responsible for illumination of one divided area.
  • the entire area is divided into four areas for convenience of description, but it is also possible to divide the area into more than four areas, and to perform illumination using four or more lighting devices.
  • the light output of each luminaire is kept constant, so that the overall brightness is kept low, in particular, the area 10-4 where the dark-dressed person is located is lower than the other areas. Luminance is maintained.
  • the present invention solves this conventional problem, and in order to actively cope with the change in brightness according to the change in the environment of the lighting area, the whole area is divided into a plurality of areas, and to install a lighting fixture for lighting of each area In addition, according to the brightness of each area, the light output of the luminaire for each area is individually controlled.
  • FIG. 2 illustrates a view from above so that each divided area 30-1-30-16 and the lighting apparatus 350-1-350-16 in charge of the divided area overlap.
  • one lighting device is provided for each divided area, but as long as there is a separate lighting device for each divided area, one per two divided areas or four divided areas.
  • a lighting fixture may be provided and a some lighting fixture may be provided in one division area.
  • the image capturing apparatus 310 (for example, a CMOS image sensor or a photo image sensor) is installed in a region corresponding to the center of the entire region 30 so as to capture the entire region. 1 to 30-16), and the luminance of the entire region and the luminance of each divided region are calculated using the image signal captured by the image capturing apparatus 310.
  • the image capturing apparatus 310 for example, a CMOS image sensor or a photo image sensor
  • the lighting fixtures 350-1 to 350-n mounted on the ceiling control the lighting fixtures to output light of the same intensity.
  • the luminance of each divided region appears according to the environment of each divided region. For example, when dark furniture is arranged in a specific area within an office, the luminance of the area where the furniture is arranged is lower than that of other areas.
  • the luminance signal and the resolution signal are separated from the image signal photographed by the image capturing apparatus 310, the luminance signal is calculated using the luminance signal and the resolution signal, and the lighting is performed for the low luminance region.
  • the lighting fixture By controlling the lighting fixture to increase the light output, the luminance of the region is adjusted to be uniform with the luminance of the other divided regions.
  • the invention compares the luminance of the entire region with the luminance of each divided region, thereby improving the luminance by increasing the light output of the lighting apparatus 350-10 in the region lower than the luminance of the entire region, thereby improving the luminance of all the divided regions.
  • the lighting fixtures that are in charge of the area where the person passes along the path of the person are luminaire 350 when the person enters the divided area.
  • the light output of the light fixture is increased, and when a person exits the divided area, the light output of the lighting device 350 is lowered again.
  • the present invention sets the luminance of the entire region in advance, so that the light output of the luminaire responsible for the region having a lower luminance than the overall luminance is increased so that each divided region is equal to the preset overall luminance, and the luminance is higher than the overall luminance. It can be controlled to lower the light output of the lighting fixture that is responsible for the high area.
  • the lighting system of the present invention includes an image photographing apparatus 310, a signal separator 320, a luminance calculator 330, and a controller 340, and the luminance calculator 330 is A full area luminance calculator 332 and a split area luminance calculator 334 are included.
  • the lighting system of the present invention may further include an input unit 360 when it is configured to directly input from a user without storing setting information such as reference luminance in the control unit in advance.
  • the image capturing apparatus 310 is installed at the center of the ceiling so as to capture the entire area of illumination using the plurality of lighting apparatuses 350-1 to 350-n in accordance with the present invention, in real time or Images are taken and output at regular time intervals.
  • the image capturing apparatus 310 of the present invention is preferably implemented with a CMOS image sensor or a photo image sensor.
  • the signal separator 320 separates and outputs a luminance signal and a resolution signal from an image signal input from the image capturing apparatus 310.
  • the image signal includes a luminance signal, a color signal, and a resolution signal, and the signal separator 320 separates the image signal using the luminance signal and the resolution signal used in the present invention and outputs the luminance signal to the luminance calculator 330. do.
  • the overall area brightness calculator 332 of the brightness calculator 330 calculates the brightness (total brightness) of the entire area by using the brightness signal and the resolution signal input from the signal separator 320.
  • the method of calculating the luminance may be variously applied. In the simplest method, the luminance may be calculated by obtaining a histogram of luminance values of the entire image input from the image capturing apparatus 310.
  • the divided region luminance calculator 334 of the luminance calculator 330 divides the entire region into a plurality of regions and calculates and outputs the luminance for each divided region using the resolution signal and the luminance signal.
  • the divided region luminance calculator 334 is configured to control pixels corresponding to each divided region of the CMOS image sensor or the photo image sensor. Information is stored in advance, and the luminance signal input from the pixels corresponding to each divided region is identified in the image signal generated by the CMOS image sensor or the photo image sensor by using the resolution signal input from the signal separation unit 320. Using this, the luminance of the area is calculated.
  • the luminance calculator 330 uses the average value of the luminance signals of the plurality of input frames or has a predetermined time difference, and the luminance is calculated according to the luminance signal only when the luminance signals of the plurality of extracted frames are the same within an error range. Can be calculated and output
  • the reason why the luminance calculator 330 does not calculate luminance in real time is that a person wearing dark clothes passes a light area at high speed or a black page is temporarily exposed while a person turns a book. This is because it may cause inconvenience to the user by changing the frequent light output in real time according to a temporary environment change.
  • the input unit 360 is implemented as a remote control receiver or keypad, and receives the setting information from the user and outputs it to the control unit 340.
  • the setting information may include a reference luminance value, an illumination method, and a reference color temperature which are preferred by the user.
  • the reference luminance value includes the reference luminance for each region and the overall reference luminance of the entire region, and the color temperature indicates cool light (about 6500K) as the color temperature value is larger, and warm illumination light (3000K) as the color temperature value is smaller.
  • Preferred reference color temperature value is output to the control unit 340 is considered in the lighting.
  • the controller 340 compares the overall luminance and the luminance of each divided region, and individually controls the light output of the lighting apparatus responsible for illumination of each divided region among the plurality of lighting apparatuses 350-1 to 350-n. do.
  • the control unit 340 is a separate lighting device (350-1 ⁇ 350-n)
  • generating a control signal for the control signal may be generated to adjust the color of the light output from the lighting fixture in accordance with the color temperature input by the user.
  • the controller 340 causes the lighting device that is responsible for illumination of the divided region to provide light output to the divided region having a lower luminance than the total luminance so that the currently measured overall luminance is equal to the luminance of each divided region. It is possible to output a control signal for increasing, and to output a control signal for lowering the light output to the luminaire in charge of illumination of the divided area for the divided region having a higher luminance than the overall luminance.
  • the controller 340 controls the illumination of the area 30-10.
  • the control signal may be generated and output so as to increase the light output only for the lighting fixture 350-10 in charge.
  • the controller 340 compares the luminance of each divided region with the preset entire reference luminance so that the measured total luminance and the luminance for each divided region are the same as the preset entire reference luminance, and thus the preset total reference
  • a control signal for causing the lighting device 350 that is responsible for illumination of the divided region to increase light output is output.
  • a control signal for lowering the light output to the luminaire in charge of the illumination of the divided region is possible to output.
  • control signal output from the controller 340 may be implemented as PWM.
  • control signal may be a voltage signal or a current signal that directly adjusts the light output of the LED lamps.
  • FIG. 4 is a flowchart illustrating a lighting method according to a preferred embodiment of the present invention.
  • a plurality of lighting devices 350 are in charge of lighting of each area. They operate to output light of a constant intensity (S410).
  • the image capturing apparatus 310 photographs the entire area in which the plurality of lighting apparatuses 350 illuminates to output an image signal (S420), and the signal separator 320 receiving the image signal receives the image signal from the image signal.
  • the luminance signal and the resolution signal are separated and output (S430).
  • the luminance calculator 330 receiving the luminance signal and the resolution signal calculates the luminance (total luminance) of the entire region by using the luminance signal and the resolution signal, divides the entire region into a plurality of divided regions, and the luminance signal. In operation S440, the luminance of each divided area is calculated and output using the resolution signal.
  • the controller 340 which receives the total luminance and the luminance of each region, compares the luminance of the entire luminance and the luminance of each divided region, generates a control signal for controlling the light output for each divided region, and is responsible for illuminating the divided region. Output to the lighting fixture 350 (S450).
  • control unit 340 may generate a control signal to increase the luminance of an area having lower luminance than the overall luminance according to an illumination method previously set or input from a user, or may generate the luminance of the region having lower luminance than the overall luminance.
  • the control signal may be generated so that the overall luminance is kept constant by increasing the luminance of the region having a higher luminance than the overall luminance at the same time.
  • the luminance of all divided regions is uniform, and the luminance of the entire region is equal to the preset luminance.
  • the control signal may be generated to match.
  • Each lighting device 350 receiving the control signal performs the lighting by increasing or decreasing the light output according to the control signal (S460).
  • the lighting system of the present invention continuously performs the above-described step S420 to step S460 to adaptively respond to changes in the lighting environment, and performs illumination of uniform brightness over the entire illumination region. Therefore, as in the above-described example, when a person wearing dark clothes enters the area where illumination is performed, the light output of the luminaire in charge of the divided area where the person entered is increased, and this person is the corresponding person. When leaving the area and entering another divided area, the light output of the luminaire in charge of the divided area that this person has left becomes low, and the light output of the divided area that this person has entered becomes high. As a result, the light output of the lighting fixture increases and decreases according to the movement of the person.
  • the imaging apparatus (CMOS image sensor or photo image sensor, etc.) of the present invention may be installed on a table stand, and the brightness (luminance) of the illumination may be adjusted under the illumination according to the user's working environment. For example, when the user turns over a book and the dark page is unfolded, the overall brightness is lowered. Therefore, the controller included in the desk stand detects this and adjusts the light output of the desk stand higher to maintain the overall brightness constant.
  • the invention can also be embodied as computer readable code on a computer readable recording medium.
  • the computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, which are also implemented in the form of a carrier wave (for example, transmission over the Internet). It also includes.
  • the computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

La présente invention concerne un système d'éclairage et un procédé d'éclairage l'utilisant. L'invention génère un signal d'image en photographiant l'ensemble de la zone éclairée avec un capteur d'image CMOS ou un photocapteur d'image ; sépare un signal de luminosité et un signal de résolution du signal d'image généré ; calcule la luminosité de l'ensemble de la zone en utilisant le signal de luminosité, un signal de couleur, et le signal de résolution, et calcule la luminosité de chacune des zones divisées en utilisant chacun des signaux de luminosité des zones divisées en divisant l'ensemble de la zone en la pluralité de zones ; et contrôle individuellement une émission de lumière d'appareils d'éclairage qui éclaire chacune des zones divisées, en utilisant la luminosité globale calculée et la luminosité calculée des zones divisées. Ainsi, l'invention permet de réaliser une luminosité uniforme de la lumière sur toutes les zones éclairées. En outre, comme l'invention comporte une fonction de correction de la température de couleur, la lumière froide (6 500 K) ou la lumière chaude (3 000 K) peut être ajustée en fonction des préférences de l'utilisateur ou de l'environnement d'éclairage par analyse RVB, réalisant ainsi un effet d'éclairage sensible.
PCT/KR2010/007414 2009-12-03 2010-10-27 Système d'éclairage et procédé d'éclairage l'utilisant Ceased WO2011068308A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0118938 2009-12-03
KR1020090118938A KR100995399B1 (ko) 2009-12-03 2009-12-03 조명 시스템 및 이를 이용한 조명 방법

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WO2011068308A2 true WO2011068308A2 (fr) 2011-06-09
WO2011068308A3 WO2011068308A3 (fr) 2011-09-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118102552A (zh) * 2023-12-18 2024-05-28 广东粤港供水有限公司 一种照明设备的控制方法、装置及终端设备

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
KR20140140867A (ko) * 2013-05-30 2014-12-10 주식회사 케이엠더블유 조명장치의 휘도 제어장치
KR102141774B1 (ko) 2020-01-02 2020-08-05 김승욱 실내 건축 설계를 위한 조명 배치 방안 생성 방법 및 장치
EP4089999A1 (fr) * 2021-05-11 2022-11-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif et procédé d'éclairage homogène des images

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Publication number Priority date Publication date Assignee Title
JP2002289377A (ja) * 2001-03-28 2002-10-04 Toshiba Lighting & Technology Corp 照明制御システム
KR100773584B1 (ko) * 2006-07-06 2007-11-08 호서대학교 산학협력단 영상을 이용한 조명 제어 방법
JP2008085716A (ja) * 2006-09-28 2008-04-10 Fujifilm Corp 撮影システムおよび撮影方法並びにプログラム
KR100784434B1 (ko) * 2006-12-06 2007-12-11 강원대학교산학협력단 터널내 조도 및 휘도측정시스템
JP5003398B2 (ja) * 2007-10-10 2012-08-15 株式会社豊田中央研究所 照明装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118102552A (zh) * 2023-12-18 2024-05-28 广东粤港供水有限公司 一种照明设备的控制方法、装置及终端设备

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KR100995399B1 (ko) 2010-11-19

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