WO2023041521A1 - Unité d'éclairage pour enceinte d'intérieur pour animaux - Google Patents

Unité d'éclairage pour enceinte d'intérieur pour animaux Download PDF

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Publication number
WO2023041521A1
WO2023041521A1 PCT/EP2022/075393 EP2022075393W WO2023041521A1 WO 2023041521 A1 WO2023041521 A1 WO 2023041521A1 EP 2022075393 W EP2022075393 W EP 2022075393W WO 2023041521 A1 WO2023041521 A1 WO 2023041521A1
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WO
WIPO (PCT)
Prior art keywords
lighting
light
light generation
intensity
floor
Prior art date
Application number
PCT/EP2022/075393
Other languages
English (en)
Inventor
Harry Broers
Marc Andre De Samber
Dragan Sekulovski
Aaron Benjamin STEPHAN
Original Assignee
Signify Holding B.V.
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 Signify Holding B.V. filed Critical Signify Holding B.V.
Publication of WO2023041521A1 publication Critical patent/WO2023041521A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K29/00—Other apparatus for animal husbandry
    • 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
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/155—Coordinated control of two or more light sources
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/16—Controlling the light source by timing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • This invention relates to lighting for animals in artificial enclosures, such as used in animal farming, or in zoos.
  • a lighting device which can be driven not only with defined and controlled lighting spectra and (circadian) periodicity, but also with dynamics and adaptable functionality, for example including sensing functionality to provide feedback-based lighting adaptation.
  • Lighting systems in livestock stables are typically used to provide functional light and comprise one or more rows or an array of lamps mounted on the ceiling.
  • the floor, walls and sometimes the ceiling are illuminated with the same lighting devices with the same intensity and color spectrum. These lighting systems do not however target to mimic the natural environment of animals.
  • WO2018/077755A1 discloses an indoor lighting system makes use of an image representing an outdoor scene.
  • Each light source of an array of light sources is able to provide a selected one of a group of lighting effects.
  • Each light source is controlled in dependence on the information relating to the associated image region, thereby to complement the lighting effect provided by the associated image region by replicating natural outdoor lighting conditions which compensate for inadequacies in the multi-region image.
  • WO2018/200685 A discloses a tool for design of a lighting installation that includes an automated search engine for retrieving and storing a plurality of lighting objects in a lighting object library and a lighting design environment providing a visual representation of a lighting space containing lighting space objects and lighting objects.
  • the visual representation is based on properties of the lighting space objects and lighting objects obtained from the lighting object library.
  • a plurality of aesthetic filters is configured to permit a designer in a design environment to adjust parameters of the plurality of lighting objects handled in the design environment to provide a desired collective lighting effect using the plurality of lighting objects.
  • US10100987B discloses a lighting device that includes two or more independently controlled sources of light, operational within a structure having a ground surface and a ceiling surface.
  • a first source of light emits light with predetermined correlated color temperature upward towards a portion of the ceiling directly above the lighting device, without obstruction from the lighting device.
  • the second source of light emits light with a predetermined correlated color temperature downward, towards the floor surface.
  • a controller independently adjusts the color temperature and intensity of the sources of light according to a time schedule.
  • a lighting unit configured for lighting an indoor animal enclosure volume having a floor, walls and ceiling, comprising: a first light generation unit comprising first optics for providing upwardly directed light; a second light generation unit comprising second optics for providing downwardly directed light; a third light generation unit comprising third optics for providing laterally directed light; and a controller for controlling the first to third light generation units, wherein the first to third light generation units each have independently controllable intensity and/or spectral composition, and wherein the controller is adapted to control the first to third light generation units in order to generate a lighting effect comprising different lighting conditions on the floor, walls and ceiling, wherein the different lighting conditions comprise one or more of intensity and spectral composition; and; wherein the controller is further adapted (i) to control at least the third light generation unit to project a light pattern to simulate the color and intensity of natural light, or the color and other lighting properties of a natural habitat or (ii) to control the third light generation unit to project a representation
  • This lighting unit can be used as part of a lighting system for livestock, for increasing welfare of the animals.
  • the lighting unit mimics natural surroundings by creating different light conditions on the floor, wall, and ceiling. The animals will perceive a more natural environment with different light conditions when viewing the ground, horizon, and sky.
  • the animal enclosure volume may be the full volume of an enclosure e.g. a stable or bam, or it may be a portion of the interior volume of such an enclosure.
  • an enclosure e.g. a stable or bam
  • the inside of a farm building may be divided into separate volumes which are distributed over the floor area but also stacked vertically. Each volume then has its own floor and ceiling (and the ceiling of one volume is the underside of the floor of a next higher volume).
  • the controller for example selects a color spectrum of the first light generation unit to simulate sky, selects a color spectrum of the second light generation unit to simulate an outdoor ground and selects a color spectrum of the third light generation unit to simulate a horizon color.
  • the simulated outdoor lighting conditions may thus represent both the color and intensity of the natural light but also the color and other lighting properties of a natural habitat, such as green grass, brown trees, blue sky etc.
  • the light output from one or more of the light generation units can vary over time by varying the intensity and/or spectral composition representing the dynamics encountered in a real environment, such as sunrise, sunset, or passing clouds.
  • the controller is for example adapted to control the lighting effect over time by varying the intensity and/or spectral composition to simulate circadian and/or infradian rhythms.
  • Ultradian responses may also be simulated, with shorter cycles (hence faster effects) than circadian rhythms, such as a short burst of light caused by the sun being blocked and open again because of moving leaves of a canopy, etc.
  • the controller may for example be adapted to control the overall lighting effect over the course of a day to simulate lighting changes corresponding to sunrise and sunset and the daytime in between.
  • the controller may also be adapted to control the lighting effect over a period of multiple days by varying the intensity and/or spectral composition to simulate lighting changes corresponding to changes in sunrise and sunset times, and optionally also the height of the sun in the sky. Thus, the lighting of different seasons can be simulated.
  • the controller may be adapted to control at least the third light generation unit to project a light pattern to simulate an outdoor scene.
  • This pattern may for example be representative of a forest scene or other natural habitat.
  • the first and/or second light generation units may also be controlled to project light patterns.
  • the second (downward) light generation unit may be controllable to deliver a portion of its light output with an independently controllable intensity and/or color spectrum.
  • This portion can for example be a bright spot which can be used to simulate sun beams landing on the floor.
  • the bright spot can change in color and/or intensity to represent sunrise, day, and sunset light colors and intensities.
  • the portion may instead be used to represent a shadow, and may for example be created by having an area of lower intensity surrounded by an area of higher intensity.
  • the second light generation unit may be controllable to deliver the portion of its light output to a controllable location on the floor.
  • a bright spot on the floor representing sun beams
  • the position of such bright spot can be modified by either a tunable directional beam from a single luminaire, or by switching over to an adjacent luminaire which has a different beam direction towards the ground.
  • the animals may choose to move to the simulated sunny spots on the floor based on their general, individual or conditional preferences.
  • the controller may be adapted to control the third (sideways) light generation to project a representation of a virtual window on a side wall, with controllable intensity and color spectrum.
  • the enclosure may have solid walls with no windows. By projecting a virtual window, animal welfare is improved by creating a more natural living environment for the animals. The use of artificial windows may also induce circadian and infradian effects.
  • the controller may then be adapted to control the second and third light generation units in dependence on the time of day such that the portion of the light output of the second light generation unit mimics a sun beam landing on the floor through the virtual window by providing a bright spot on the location representing a sun beam.
  • the change in color and intensity of sunlight during the course of a day can be simulated as viewed through a window, by making the projected window area change color.
  • the sun beams landing on the floor through the window are represented by a bright spot.
  • the bright spot thus moves around the floor in synchronism with the change in intensity and color spectrum of the virtual window itself, and represents the outdoor light conditions and scenery.
  • the first (upwards) light generation unit is for example controllable to deliver a portion of its light output with an independently controllable intensity and/or color spectrum.
  • the first light generation unit may also generate a bright spot, for example to represent the sun in the sky (e.g. incoming through a virtual ceiling window) as a projection onto the ceiling.
  • bright spots may be used to represent holes in a tree canopy through which daylight can be seen, to give a more natural feeling to the indoor lighting.
  • the lighting unit may further comprise at least one system for delivering an infrared beam. This may be used to provide a heating effect.
  • the system for delivering an infrared beam is for example for directing the beam to a location, or generating the beam at a location, corresponding to a location of simulated sun beams generated by the first and/or second light generation units.
  • the IR heating is thus located at the same location as bright spots representing sun beams, to give a natural direct sunlight heating effect.
  • the lighting unit may be integrated with a feeder trough.
  • the downward illumination may then be used to illuminate the animal feed.
  • the side illumination can be used to create glare to the animals to function as a signal to the animals.
  • the invention also provides a lighting system comprising a plurality of lighting units, each as defined above, wherein a master controller synchronizes the control of the lighting units.
  • the overall lighting system can thus, in a coordinated way, create the perception of a natural environment.
  • the lighting units of the system may be at the same heights or at different heights.
  • the design of the overall system may also be used to create other effects, such as depth perception.
  • the third light generation units for example have an intensity which depends on the distance to the side walls of the enclosure. For example, for lighting units in the center of the enclosure, the third light generation units (for illuminating the walls) may be turned off.
  • the lighting unit further comprising a light sensor configured to measure the optical properties the light at the location of an animal and wherein the controller is further configured to control the first to third light generation units to create a desired lighting effect using the signal from the light sensor.
  • the invention also provides a method of lighting an indoor animal enclosure having a floor, walls and ceiling, comprising: providing upwardly directed light using a first light generation unit comprising first optics; providing downwardly directed light using a second light generation unit comprising second optics; providing laterally directed light using a third light generation unit comprising third optics; and independently controlling the intensity and spectral composition of the upwardly, downwardly and laterally directed light in order to create a lighting effect which comprises different lighting conditions on the floor, walls and ceiling, wherein the different lighting conditions comprise one or more of intensity and spectral composition; controlling at least the third light generation unit to project a light pattern to simulate the color and intensity of natural light, or the color and other lighting properties of a natural habitat or (ii) to controlling the third light generation unit to project a representation of a virtual window on a side wall with a controllable intensity and spectral composition.
  • a lighting unit configured for lighting an indoor animal enclosure volume having a floor, walls and ceiling, comprising: a first light generation unit comprising first optics for providing upwardly directed light; a second light generation unit comprising second optics for providing downwardly directed light; a third light generation unit comprising third optics for providing laterally directed light; and a controller for controlling the first to third light generation units, wherein the first to third light generation units each have independently controllable intensity and/or spectral composition, and wherein the controller is adapted to control the first to third light generation units in order to generate a lighting effect comprising different lighting conditions on the floor, walls and ceiling, wherein the different lighting conditions comprise one or more of intensity and spectral composition; and; wherein the lighting unit is integrated with a feeder trough.
  • the further example may also comprise one or more aspects according to claims 2 - 9 and 11 - 15.
  • Figure 1 shows a first example of a lighting unit for lighting an indoor animal enclosure
  • Figure 2 shows the light output from the lighting device as three bands; a lower band for floor illumination, a middle band for wall illumination and an upper band for ceiling illumination;
  • Figure 3 shows that a brighter region may be provided at the wall (and possibly reaching the ceiling) to provide a virtual window
  • Figure 4 shows an animal feeder which is formed with the lighting device
  • Figure 5 shows a lighting device suspended over a feeder rather than being formed as part of a feeder design
  • Figure 6 shows a system of multiple lighting devices and a separate overall controller
  • Figure 7 shows a portion of a side wall and floor, with a virtual window and localized sunny spot on the floor.
  • the invention provides a lighting unit for lighting an indoor animal enclosure volume having a floor, walls and ceiling.
  • First to third light generation units are provided with independently controllable intensity and spectral composition and they are controlled to generate a lighting effect comprising different lighting conditions on the floor, walls and ceiling which together simulate outdoor lighting conditions.
  • This lighting unit can be used as part of a lighting system for livestock, for increasing welfare of the animals by mimicking natural surroundings. It may also be used in a zoo, to better mimic the natural habitat of the animal species.
  • the lighting provides a different perception depending on the viewing direction of the animals. When viewing towards the ground, walls, and ceiling, different light conditions will be perceived for example mimicking looking at e.g., a forest floor, the horizon, and the sky.
  • Figure 1 shows a first example of a lighting unit 10 for lighting an indoor animal enclosure, such as may be used for animal farming.
  • the enclosure (not shown in Figure 1) has a floor, walls and a ceiling.
  • the lighting unit is for suspension below a ceiling.
  • the lighting unit has a first light generation unit 12 for providing upwardly directed light 13, a second light generation unit 14 for providing downwardly directed light
  • the first to third light generation units have independently controllable intensity and spectral composition. By this is meant that the light output color of each light generation unit can be chosen by the user and the brightness is also controllable.
  • a controller 20 is for controlling the first to third light generation units 12, 14,
  • simulating outdoor lighting conditions means simulating the colors and/or lighting dynamics that will be perceived resulting from sunlight illumination in a natural outdoor environment.
  • the intensity and spectral composition may simulate the (i) ground color and brightness (i.e. how reflective or absorbing the ground is), such as a green or brown floor illumination, (ii) a horizon view, and (iii) a sky view such as a blueish spectrum.
  • the simulated outdoor lighting conditions may represent both the color and intensity of the natural light itself (which for example depends on the time of day) but also the color and other lighting properties of a natural habitat, such as green grass, brown trees, blue sky etc.
  • the side illumination may also be used to enhance the simulation of the horizon by projecting a pattern mimicking a particular distant scene, such as speckled light seen through a forest.
  • the light output intensity and spectral composition may also be adapted talking into account the color of the floor, walls and ceiling of the enclosure itself, so that illumination with the selected light spectrum results in the desired visible effect.
  • a light sensor may be used to measure the optical properties of an illuminated surface, so that the light spectrum and light intensity can be adapted to create this desired visible effect.
  • the intensity and color composition may vary during the course of a day to replicate natural changes in lighting conditions, for example at, and between, sunrise and sunset. Changes over longer periods of time may also be simulated, such as the length of the day between sunrise and sunset and the height of the sun in the sky.
  • the controller in this example is an internal part of the lighting unit, and the lighting unit may be a single self-contained unit. However, it may be part of a system of lighting units and there may then be a single external controller, or else an internal controller of one lighting unit may function as a master controller and the other controllers may function as slaves.
  • the lighting unit can thus be a self-contained lighting system or just part of a lighting system, for livestock in order to increase the welfare of the animals.
  • the first to third light generation units may provide a generally uniform output illumination. However, they may instead enable control of a light output pattern, and for this purpose they may comprise an array of light sources, such as an LED array, and the control at the level of individual LEDs or clusters of LEDs enables shadow effects or bright spots to be created.
  • the third light generation unit may be a projection system.
  • the control of an array also enables different colors and different intensities of light output to be projected in different directions.
  • the resulting light output pattern from each light generation unit may then be dynamic, simply by addressing the LED arrays over time.
  • Figure 1 for example shows a bright area 30 in the downward light and a bright area 32 in the upward light.
  • the upward bright area 32 may for example be used to simulate a sun position on the ceiling and the downward bright area may be used to simulate a bright patch on the floor simulating light through a window (discussed in more detail below).
  • Figure 2 shows the light output from the lighting device as three bands; a lower band 40 for floor illumination, a middle band 42 for wall illumination and an upper band 44 for ceiling illumination.
  • Figure 3 shows that a brighter region 50 may be provided at the wall (and possibly reaching the ceiling) to provide a virtual window to which a spectrum mimicking incident sunlight is provided.
  • a virtual window may also be a roof-positioned window.
  • the lighting system may include additional spotlights to create bright spots on the ceiling and/or the floor.
  • Bright spots at the floor or ceiling for example mimic the effect of holes in a tree canopy on the floor and/or ceiling.
  • Bright spots can for example be created by a fixed optical system (separate to the lighting device as shown), or else when using an addressable LED array, the location of the bright spot could be adapted by locally increasing the intensity of selected LEDs of the lighting device as shown.
  • Direct view bright spots may also be created on the lighting device itself such as used in guidance lights. These bright spots for example create specific landmarks.
  • the lighting devices are for example ceiling-suspended luminaires, all at the same height. However, the approach may be extended to luminaires at different heights.
  • Figure 4 shows an animal feeder 60 which is formed with the lighting device as described above, positioned over the food presentation area of the feeder.
  • the lighting device for example provides general floor illumination, a brighter downward area 62 for illuminating the food in the feeder to make it more visible, and the side and upward light explained above.
  • Horizontal illumination paterns may be provided at different heights. For example, an illumination at eye level enables the use of glare to mobilize animals with specific heights.
  • the lighting produced by the animal feeder may thus be used to atract particular animals to the feeder.
  • Figure 5 shows a lighting device 70 suspended over a feeder 60 rather than being formed as part of a feeder design.
  • Figure 6 shows a system of multiple lighting devices 10 and a separate overall controller 72, within an enclosure 74 (of which the floor and side walls are shown).
  • the controller 72 (and/or the lighting devices themselves) are aware of their location with respect to the layout of the enclosure. When lighting devices are distant from the side walls it could be decided to disable the side view illumination 17 as shown (in that the middle lighting device shown does not generate side illumination).
  • the controller 72 can control a group of lighting devices such that a coordinated light recipe is provided to the animals.
  • the intensities and spectral setings of the various lighting devices can differ so as to create the best perception. For example, a false perception of depth can be created by varying the intensity of consecutive rows of lighting devices. Other artificial depth cues can also be created using known lighting techniques.
  • a virtual window may be created by the lighting device.
  • the agriculture industry has moved away from having windows, because of the building construction cost, ease of control of artificial lighting setings and climate control. Obviously, this is in conflict with the trends of customer wishes and governmental organization regulations, wanting and demanding a more natural living environment for the animals.
  • the lighting is thus used to artificially create the sensation of the presence of windows in the walls and/or ceiling of the enclosure.
  • This sensation is based on vision (animal perception), indoor lighting and optionally also warmth.
  • vision animal perception
  • indoor lighting optionally also warmth.
  • the circadian and infradian effects can also be achieved by using virtual windows.
  • Figure 7 shows a portion of a side wall and floor, with a virtual window 80 projected against the side wall and a localized sunny spot 82 projected on the floor representing the direct light path from the sun through the window. Based on the local sunny spot, animals can choose where to reside.
  • the top image for example shows a lighting situation at noon, during a sunny day, creating a virtual bright window 80 with a bright blue or bright green color, and a bright spot 82 of white or yellowish light on the floor.
  • the bright light spot is directly in front of the window suggesting a south facing wall.
  • the bottom image shows the lighting situation later in the afternoon, with a somewhat dimmer lighting of the virtual window (turning towards a reddish or orange color due to upcoming sunset), and also a dimmer and moved spot of white or reddish light on the floor because of the changed position of the sun versus the virtual window position.
  • each lighting device needs at least the downward illumination to have an adaptive beam direction (or direction of a bright spot over a general background of illumination).
  • a first (e.g. rectangular) beam of light is directed towards the wall (or ceiling) as to create a representation of a virtual window using the side illumination. This may be static in position.
  • a second beam of light is directed towards the floor of the stable as to create a bright spot of light and this has controllable position.
  • the side illumination may also be controllable with an adaptive beam direction.
  • the lighting device may also have an infrared (IR) source for creating a directional and focused IR light beam, coinciding with the floor light spot 82, as to create a feeling of warmth, thereby mimicking the warmth sensation of sunrays on the floor and hitting the animals that reside there.
  • IR infrared
  • the lighting device may instead be part of an overall system which includes other separate heating arrangements, such as IR heat panels.
  • An overall system controller knows the locations of the lighting devices and the heat panels, so that heat can be directed to a desired location in synchronism with a desired lighting effect.
  • the heating may have controllable direction, or there may be multiple heat panels, so that activation of one heat panel provides heating towards a known part of the volume.
  • each may have a heating panel directed towards the output area of the lighting unit.
  • Temperature sensors may be used to detect the temperature at different locations. For example, warm locations may be detected in the enclosure for example using remote temperature sensors, and direct the virtual windows may then be positioned to correspond to those specific locations.
  • tailored lighting is provide based on said temperature, by adapting the lighting to provide a representation of a virtual window based on detected temperatures.
  • the lighting units only need to create low resolution lighting effects.
  • the requirements in terms of vision sensation for animals are obviously not the same as for human observers. While people would expect to ‘see’ a realistic full and high-resolution image (and ideally dynamics), for animals it is sufficient that they feel the rhythm of the day by providing a view of the changing sky color (from sunrise to sunset), and general environmental colors (e.g., a green color of planting). This will already provide a strong enrichment to the surroundings.
  • the virtual window feature using a spot of light which changes in intensity and spectrum related to the time of the day or time of year as well as changing in location on the floor, provides a further dynamic aspect to the overall lighting effect. There may be a row of virtual windows, and the lighting effect is then coordinated.
  • the virtual window thus translates the external light conditions to indoor settings, including daily and optionally also seasonal effects.
  • the animals thereby experience natural and changing conditions without having real windows.
  • the simulation will be limited by the performance of the lighting system, but at the same time these limitations can be exploited as an advantage as sudden external light anomaly effects (which might be disturbing and stressful to the animals) will automatically be filtered out.
  • the effects can easily be decoupled from external conditions and can be selected as optimize efficiency.
  • an optimal light and dark periodicity can be implemented both using the general artificial light settings of the stable but also supported by the virtual window effects.
  • the fact that the lighting conditions are fully artificial also allows for any type of overrule by a human user (farmer), without being hindered by possibly disturbing outdoor light.
  • the light generation units are preferably LED arrays, together with suitable optics to create a desired light projection area.
  • the optics are preferably static, and all pattern movements (e.g. moving the bright spot on the floor) are implemented simply by control of the LED array.
  • the color and intensity projected in that particular light output direction can be controlled.
  • the overall LED array patterns of color and intensity across the overall light output area can be created.
  • the first to third light generation units may be within a shared enclosure (as shown), but they may instead be in separate enclosures which together are connected electrically to form an overall light generation unit.
  • the light generation unit may use any semiconductor light-emitting device, such as a light emitting diode (LED) as mentioned above, but also a resonant cavity light emitting diode (RCLED), a vertical cavity laser diode (VCSELs), an edge emitting laser, etc.
  • the light sources may be implemented as chip-on-board (COB) light sources.
  • the optics for example comprise an array of micro lenses, with each lens associated with a single solid state light source, such as a single LED, or associated with plurality of solid state light sources (i.e. e.g. shared by a sub-array of LEDs).
  • the optics may be on-chip.
  • the lighting may aim to create a desired appearance, in particular color and brightness, at the floor, walls and ceiling.
  • the light output spectrum and intensity required to create the desired lighting effect will depend on the nature of the surface being illuminated, in particular the color and reflectivity.
  • one or more sensors may be used to measure the light as perceived by the animal. For example, light reflected from a red-colored enclosure wall will look ‘reddish’.
  • the delivered light needs to be adapted to create the desired lighting effect by changing the light settings of the light generation unit.
  • the local light properties sensed at the expected animal location can thus be compared with the desired lighting properties so that the delivered light can be adapted to create the desired effect.
  • the walls and ceiling of the animal enclosure may be painted to a standard color for the lighting system, and indeed this can avoid the need for a feedback system.
  • animal enclosures will have different geometries and colors, and the use of a feedback sensing system avoids the need to modify the enclosure to obtain the desired lighting functionality.
  • the invention may be used for various livestock animals such as chicken and swine.
  • the invention has been described as used in animal farming. However, it may be applied to other animal enclosures, such as in zoos or animal care sanctuaries, for example for penguins, sea lions etc. that reside in artificial enclosures in a zoo.
  • the volume being illuminated may be only a portion of an overall enclosure, and there may be a stack of floors and ceilings, which are illuminated to represent or simulate a more natural environment.
  • a computer program may be stored/distributed on a suitable medium, such as an optical storage medium or a solid-state medium supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Zoology (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Une unité d'éclairage est destinée à éclairer un volume d'enceinte d'intérieur pour animaux ayant un plancher, des parois et un plafond. Des première à troisième unités de génération de lumière sont dotées d'une intensité et d'une composition spectrale pouvant être commandées indépendamment, et sont commandées pour générer un effet d'éclairage comprenant différentes conditions d'éclairage sur le sol, les parois et un plafond qui simulent ensemble des conditions d'éclairage extérieur. Cette unité d'éclairage peut être utilisée en tant que partie d'un système d'éclairage pour le bétail pour augmenter le bien-être des animaux par imitation d'un environnement naturel.
PCT/EP2022/075393 2021-09-17 2022-09-13 Unité d'éclairage pour enceinte d'intérieur pour animaux WO2023041521A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202163245228P 2021-09-17 2021-09-17
US63/245,228 2021-09-17
EP21198411.7 2021-09-23
EP21198411 2021-09-23

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WO2023041521A1 true WO2023041521A1 (fr) 2023-03-23

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018077755A1 (fr) 2016-10-25 2018-05-03 Philips Lighting Holding B.V. Système et procédé d'éclairage intérieur
US10100987B1 (en) 2014-09-24 2018-10-16 Ario, Inc. Lamp with directional, independently variable light sources
WO2018200685A2 (fr) 2017-04-27 2018-11-01 Ecosense Lighting Inc. Procédés et systèmes pour plate-forme automatisée de conception, d'exécution, de déploiement et d'exploitation pour des installations d'éclairage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10100987B1 (en) 2014-09-24 2018-10-16 Ario, Inc. Lamp with directional, independently variable light sources
WO2018077755A1 (fr) 2016-10-25 2018-05-03 Philips Lighting Holding B.V. Système et procédé d'éclairage intérieur
WO2018200685A2 (fr) 2017-04-27 2018-11-01 Ecosense Lighting Inc. Procédés et systèmes pour plate-forme automatisée de conception, d'exécution, de déploiement et d'exploitation pour des installations d'éclairage

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