Independent object color control system using spectrum control and independent object color control method using same

Abstract

The present invention relates to an independent object color control system using spectrum control and an independent object color control method using same, the independent control system comprising a lighting device and a control device. The lighting device provides illumination light having a prescribed illumination spectrum to a space in which objects are located. The control device controls the illumination spectrum of the illumination light on the basis of the reflection characteristics of each of the objects. In this case, each of the objects in the space is displayed as reflected light of a specific color according to the illumination spectrum of the illumination light.

Description

Independent control system for object color using spectrum control and independent control method for object color using the same

[0001] The present invention relates to an independent object color control system using spectrum control and an independent object color control method using the same. More specifically, it relates to an independent object color control system using spectrum control that independently controls the colors of multiple objects located in a space and displays them to a user by utilizing smart lighting that controls the spectrum in various ways, and an independent object color control method using the same.

[0002] Recently, driven by diverse consumer needs and technological advancements, technology is being developed that enables products to change color actively.

[0003] For example, Korean Patent Publication No. 10-2022-0094196 discloses a technology in which a three-dimensional object comprising a light-transmitting substrate and an electrophoretic medium is fabricated and the color of the object changes.

[0004] In addition, Japanese Registered Patent No. 6319922 discloses a product that changes color by stacking optical structures, and U.S. Published Patent No. 2024-0151995 discloses a technology that changes the color of an object by changing the object's temperature, pressure, voltage, bending, viewing angle, etc.

[0005] As described above, although technologies for actively varying product colors are being developed in various ways, products developed to date are limited to designing the structure of the product itself or designing the product's inherent characteristics to vary as factors influencing the display color.

[0006] Accordingly, complex design and manufacturing processes are required to produce color-changing products, and there is a limitation in that it is difficult to change the color of existing products that do not have such a structure.

[0007] Furthermore, when multiple objects exist in a specific space, there is an increasing need for technology to vary the display colors of each object, but the technology to implement this is still underdeveloped.

[0008] Accordingly, the technical problem of the present invention is conceived from this point, and the objective of the present invention is to provide an independent object color control system using spectrum control that independently controls the colors of multiple objects located in a space and displays them to a user by utilizing smart lighting that controls the spectrum in various ways.

[0009] In addition, another objective of the present invention is to provide a method for independent control of object color using the independent control system.

[0010] An independent control system according to one embodiment for realizing the purpose of the present invention described above includes a lighting device and a control device. The lighting device provides lighting light having a predetermined lighting spectrum to a space where objects are located. The control device controls the lighting spectrum of the lighting light based on the reflection characteristics of each of the objects. In this case, each of the objects in the space is displayed as reflected light of a specific color according to the lighting spectrum of the lighting light.

[0011] In one embodiment, the control device may include a database storing reflection characteristics displayed according to the illumination spectrum for each of the objects, and a control unit that controls the illumination spectrum of the illumination light provided to the space unit based on the information stored in the database.

[0012] In one embodiment, the lighting device may be provided in the space independently of the control device.

[0013] In one embodiment, the control device and the lighting device are integrally provided in a mobile terminal, and the mobile terminal may be located in the space.

[0014] In one embodiment, the control unit can control the provision of standard lighting to the space through the lighting device.

[0015] In one embodiment, the control device may further include an authentication unit that authenticates and connects the lighting device and the control device to each other, an identification unit that identifies and registers objects located in the space, and a display unit that displays the operating status of the control device to the outside.

[0016] In one embodiment, the identification unit can identify objects identified as existing in the space unit by providing standard lighting to the space unit.

[0017] In one embodiment, the control unit controls the lighting device to provide light of a single wavelength or a narrowband wavelength, the wavelength of which is sequentially varied, to the space unit, the identification unit measures the reflection characteristics of the objects according to the provision of the light of the single wavelength or narrowband wavelength, and the database can store the measured reflection characteristics.

[0018] In one embodiment, the illumination light is light composed of at least two monochromatic lights of different wavelengths combined, and the light that is not reflected from the objects can be controlled as white light.

[0019] In one embodiment, the control device may include a correction unit that performs re-measurement or correction of an object when an error occurs or is determined to be inaccurate in identifying the objects or storing the reflection characteristics of the objects.

[0020] In one embodiment, the correction unit can determine the error or inaccuracy by comparing information regarding the identification or reflection characteristics of the objects with information regarding the same objects already stored in a database.

[0021] In one embodiment, the correction unit can readjust the position, direction, or orientation of the identification unit that identifies the objects.

[0022] In one embodiment, the correction unit can correct the composition of the spectrum of the illumination light provided to the objects.

[0023] An independent control method according to one embodiment for realizing another objective of the present invention described above comprises the steps of measuring and storing the reflection characteristics of each of the objects located in a space, and controlling the illumination spectrum of the illumination light provided from a lighting device based on the reflection characteristics of each of the objects to control the color of each of the objects. In this case, each of the objects in the space is displayed as reflected light of a specific color according to the illumination spectrum of the illumination light.

[0024] In one embodiment, the step of measuring and storing the reflection characteristics may include: a control unit controlling the lighting device to provide light of a single wavelength or narrowband wavelength, the wavelength of which is sequentially varied, to the space unit; an identification unit measuring the reflection characteristics of the objects according to the provision of the light of the single wavelength or narrowband wavelength; and storing the measured reflection characteristics in a database.

[0025] In one embodiment, the step of controlling the color of each of the objects may include the step of displaying the reflective characteristics of the objects on a display unit, the step of selecting an object to be subject to color control, the step of controlling the illumination spectrum of the illumination light based on the reflective characteristics of the selected object, and the step of providing the illumination light having the controlled illumination spectrum to the space unit.

[0026] In one embodiment, prior to the step of measuring and storing the reflection characteristics of each of the objects, the method may further include the step of connecting a control device to the lighting device and registering the objects.

[0027] In one embodiment, the step of registering the objects may include connecting the control device to the lighting device through an authentication unit, controlling the lighting device with standard lighting by a control unit of the control device, and identifying and registering the objects identified as existing in the space unit as the standard lighting is provided by an identification unit of the control device.

[0028] In one embodiment, after the step of measuring and storing the reflection characteristics of each of the objects, if an error exists in the measurement result of the reflection characteristics, the method further includes the step of remeasuring or correcting the reflection characteristics of the object, and in the step of remeasuring or correcting, the position or direction of the identification unit may be readjusted.

[0029] According to embodiments of the present invention, by using a lighting device that provides lighting light having various lighting spectra, various objects located in a specific space can be varied to different or the same colors desired by the user, thereby enabling user-customized spatial coloring and spatial object coloring.

[0030] In other words, even if the same white light is provided in the space, the reflection spectrum of the object varies according to the spectrum contained in the white light, thereby enabling active control of the object's color and allowing visibility into various colors. Since this is implemented simply by controlling the illumination light without varying the material, components, or characteristics of the object itself to vary the object's color as in conventional methods, active control of the object's color can be implemented more easily.

[0031] At this time, while connecting the control device to the lighting device, the reflection characteristics of each object can be measured and stored during the process of registering the objects located in the space, and since the information regarding the reflection characteristics of each object stored in this way is provided to the user through a separate display unit, the user can easily control the display of a specific object in a specific color.

[0032] That is, the reflection characteristics of objects in the space can be stored in a database by identifying the objects in the space through standard lighting and then measuring and storing information regarding the reflection characteristics of the objects for each lighting spectrum, i.e., the color of the reflected light, through scan lighting; thus, active control as described above can be easily implemented.

[0033] In this case, if an error occurs in the storage of the reflection characteristics of the objects, information regarding accurate reflection characteristics can be stored in a database by remeasuring or correcting the reflection characteristics of the object. In particular, by adjusting the position or direction of the identification unit (camera), more accurate measurement of the reflected light is possible, thereby allowing for more accurate reflection characteristic information to be stored in a database.

[0034] Furthermore, since the control device is integrated with the lighting device and can be implemented as a mobile terminal such as a smartphone or tablet PC, the customized spatial coloring can be achieved by providing lighting light to the space through the mobile terminal while omitting a separate lighting device. Accordingly, active spatial coloring can be implemented in a wider variety of environments.

[0035] FIG. 1 is a block diagram illustrating an independent control system for object color according to one embodiment of the present invention.

[0036] Figure 2 is a flowchart illustrating an independent control method for object color using the independent control system of Figure 1.

[0037] FIG. 3 is a flowchart specifically illustrating the steps of registering the objects of FIG. 2, and FIG. 4 is a schematic diagram illustrating the steps of FIG. 3.

[0038] FIG. 5 is a flowchart specifically illustrating the step of measuring and storing the reflection characteristics of the objects of FIG. 2, and FIG. 6 is a schematic diagram illustrating the step of FIG. 5.

[0039] FIG. 7 is a schematic diagram illustrating the step of remeasuring or correcting the reflection characteristics of the objects of FIG. 2.

[0040] FIG. 8 is a flowchart specifically illustrating the steps for controlling the colors of the objects in FIG. 2, and FIG. 9a and FIG. 9b are schematic diagrams illustrating the steps of FIG. 8.

[0041] FIG. 10 is a block diagram illustrating an independent control system for object color according to another embodiment of the present invention, and FIG. 11 is a schematic diagram illustrating the operating state of the independent control system of FIG. 10.

[0042] <Explanation of Symbols>

[0043] 10, 11: Independent control system 100, 101: Control device

[0044] 110 : Connection part 120 : Authentication part

[0045] 130, 131: Control unit 140, 141: Identification unit (camera)

[0046] 150, 151 : Database 160, 160 : Correction section

[0047] 170, 171: Display unit 180, 200: Lighting device

[0048] 210 : Lighting Spectrum 211 : Lighting Light

[0049] 221, 222, 223, 224 : Reflected light 300 : Spatial part

[0050] 301: First Space 302: Second Space

[0051] 310, 320, 330, 340 : Object 311, 321, 331, 341 : Image

[0052] 312, 342 : Reflection spectrum 400 : User

[0053] The present invention is susceptible to various modifications and may take various forms, and embodiments are to be described in detail in the text. However, this is not intended to limit the invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Similar reference numerals have been used for similar components in the description of each figure. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms.

[0054] The above terms are used solely for the purpose of distinguishing one component from another. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "consisting of" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0055] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings.

[0056] FIG. 1 is a block diagram illustrating an independent control system for object color according to one embodiment of the present invention.

[0057] Referring to FIG. 1, the independent control system for object color (10, hereinafter referred to as the independent control system) according to the present embodiment includes a control device (100) and a lighting device (200).

[0058] The above control device (100) controls the overall operation of the lighting device (200) to implement spatial colorization through the independent control system (10).

[0059] The lighting device (200) is provided in a predetermined space (300), and as shown in FIG. 4 which will be described later, it can be mounted on the upper part of the space (300). Of course, the mounting position of the lighting device (200) is not limited, and it can be additionally mounted at any location in a specific space (300) to implement spatial coloring.

[0060] Alternatively, it may be a lighting device (200) already installed in a specific space (300), and in the case of such a lighting device (200), the lighting spectrum of the lighting light must be able to be controlled in various ways to implement the spatial colorization.

[0061] Here, the space portion (300) may be various indoor or outdoor spaces, regardless of whether it is sealed or not, and is not limited to a specific space as long as the implementation of the space coloring is possible.

[0062] Meanwhile, a plurality of objects (310, 320) may be located in the space (300), and as described below, the objects (310, 320) display a reflected light of a specific color to the outside in response to the provided lighting light according to the reflective characteristics of the object.

[0063] Accordingly, the user (400) located in the space (300) perceives the colors of the objects based on the reflected light reflected from each of the objects (310, 320), thereby realizing the spatial coloration of the space (300).

[0064] Meanwhile, the above control device (100) specifically includes a connection unit (110), an authentication unit (120), a control unit (130), an identification unit (camera) (140), a database (150), a correction unit (160), and a display unit (170).

[0065] Below, each component of the above-mentioned control device (100) is briefly described, and for convenience of explanation, more detailed operations or components are simultaneously described in the independent control method described later.

[0066] The above connection part (110) is a module that connects the control device (100) and the lighting device (200) to each other, and may include, for example, a predetermined wired / wireless communication module.

[0067] The authentication unit (120) performs a predetermined authentication when connecting the control device (100) to the lighting device (200), and serves as a means for authenticating the user (400) or for other security purposes. Thus, in order to connect the control device (100) to the lighting device (200) located in the space unit (300), registration and authentication through the authentication unit (120) must be performed beforehand. The authentication unit (120) can be implemented in the form of an app embedded in a smartphone, and the user (400) can perform authentication through the smartphone.

[0068] The control unit (130) controls the lighting light provided by the lighting device (200) and controls the lighting light to have a specific lighting spectrum. That is, the control unit (130) can control so-called standard lighting to be provided to the space unit (300) through the lighting device (200). At this time, standard lighting refers to a standard light source defined by the International Commission on Illumination, and may be a D-series (D65, D50, etc.) or an F-series, etc.

[0069] In contrast, the control unit (130) can control the lighting device (200) so that light of a single wavelength or a narrowband wavelength, with a sequentially variable wavelength, is provided to the space unit (300) through the lighting device (200). At this time, a narrowband wavelength is a wavelength having a predetermined narrow range rather than a single wavelength, and can be defined as a wavelength range in which an object in the space unit (300) is expressed only by reflected light of a specific color through the light of the narrowband wavelength.

[0070] Furthermore, the control unit (130) can control the lighting device (200) so that the lighting light provided through the lighting device (200) is displayed as white light while having a specific lighting spectrum. That is, the lighting light provided through the lighting device (200) must be displayed as white light overall.

[0071] As described above, the control unit (130) controls the lighting light provided to the space unit (300) through the lighting device (200) to be displayed as white light and to have a specific lighting spectrum or a specific wavelength, and a detailed explanation of each case will be provided later.

[0072] Of course, in addition to controlling the lighting device (200) in the above control unit (130) to display white light, if the user (400) requests light of a specific color, light of a specific color according to the user's request may be provided in addition to the white light. In this case as well, light of a specific color requested by the user must be provided while having a specific lighting spectrum, such as having the specific lighting spectrum.

[0073] The identification unit (140) individually identifies the objects (310, 320) located in the space unit (300) or measures the reflection characteristics of each of the objects (310, 320) as the control unit (130) controls the lighting light provided from the lighting device (200). At this time, the identification unit (140) may be a camera, and the type of camera is not limited. However, since the light reflected through the objects (310, 320) is visible light, the camera may be a general RGB camera.

[0074] Additionally, the camera may be fixed in a specific position and at a specific angle toward the space (300), but the position and angle may be adjusted in various ways for the identification of the objects (310, 320) or for accurate measurement of reflection characteristics.

[0075] The above database (150) stores information about the result of authentication through the authentication unit (120) and the lighting device (200), as well as information about the objects (310, 320) identified as being located in the space unit (300), and information about the reflection characteristics of each of the objects (310, 320).

[0076] At this time, more detailed information stored through the above database (150) will be described later.

[0077] The correction unit (160) performs re-measurement or correction of the object when an error occurs or is determined to be inaccurate when identifying the objects (310, 320) or storing the reflection characteristics of the objects (310, 320) by the illumination light provided from the illumination device (200).

[0078] Such errors or inaccuracies may be caused by the identification unit (140) failing to accurately recognize the reflected light of a specific object among the objects (310, 320), and in this case, the correction unit (160) can readjust the position, direction, or posture of the identification unit (140) to induce more accurate recognition of the reflected light from the objects.

[0079] Furthermore, the above error or inaccuracy may occur due to various causes, such as errors in the lighting light provided by the other lighting device (200) or errors in the control of the control unit (130), and the correction unit (160) can determine the error or inaccuracy by comparing the information regarding the identification or reflection characteristics of the objects (310, 320) with the information regarding the same objects already stored in the database (150).

[0080] Thus, if the correction unit (160) determines that an error has occurred or the information regarding the identification or reflection characteristics is inaccurate, it performs re-measurement or correction of the object, and the re-measurement or correction result is stored in the database (150).

[0081] The above display unit (170) displays the overall operation and necessary information of the control device (100) to the outside. If the control device (100) is implemented as a mobile terminal such as a smartphone or tablet PC, for example, it can be implemented as a window of the terminal.

[0082] Thus, the user (400) can directly check the overall operation and necessary information of the control device (100) and, furthermore, the independent control system (10) through the display unit (170). Furthermore, as described below, the display unit (170) includes an operation unit (103), so the user can input necessary commands through the display unit (170).

[0083] Below, a method for independent control of an object color using the independent control system (10) (hereinafter referred to as the independent control method) will be explained in more detail. In addition, along with the explanation of the independent control method, the independent control system (10) will also be explained simultaneously.

[0084] FIG. 2 is a flowchart illustrating a method for independent control of object colors using the independent control system of FIG. 1. FIG. 3 is a flowchart specifically illustrating the step of registering the objects of FIG. 2, and FIG. 4 is a schematic diagram illustrating the step of FIG. 3. FIG. 5 is a flowchart specifically illustrating the step of measuring and storing the reflection characteristics of the objects of FIG. 2, and FIG. 6 is a schematic diagram illustrating the step of FIG. 5. FIG. 7 is a schematic diagram illustrating the step of re-measuring or correcting the reflection characteristics of the objects of FIG. 2. FIG. 8 is a flowchart specifically illustrating the step of controlling the colors of the objects of FIG. 2, and FIG. 9a and FIG. 9b are schematic diagrams illustrating the step of FIG. 8.

[0085] Referring to FIG. 2, in the above independent control method, first, the control device (100) is connected to the lighting device (200), and objects (310, 320) located in the space (300) are identified and registered with the control device (100) (step S10).

[0086] More specifically, referring to FIGS. 3 and 4, in step S10, the control device (100) is first connected to the lighting device (200) through the authentication unit (120) (step S11). The authentication unit (120) is provided in the control device (100), and after the user is verified through a predetermined secure authentication procedure, the lighting device (200) is connected to the control device (100). At this time, the lighting device (200) is connected through the connection unit (110) of the control device (100), and through this, information and identification regarding the lighting device (200) are performed.

[0087] That is, through such authentication and connection, the control device (100) obtains information about the lighting device (200) and can prepare to control the lighting device (200). To this end, information about the lighting device (200) may be stored in advance in the database (150), and the control unit (130) extracts information about the connected lighting device (200) from the information stored in the database (150) to prepare for control.

[0088] Afterward, the control unit (130) controls the lighting device (200) to a so-called standard light (step S12). This control of the lighting device (200) to a standard light corresponds to lighting control for identifying and registering various objects (310, 320, 330, 340) located inside the subsequent space unit (300).

[0089] At this time, the above standard lighting refers to a standard light source (such as D-series or F-series, D65, D50, etc.) defined by the International Commission on Illumination as previously explained, and the control unit (130) controls the lighting device (200) connected through the connection unit (110) to provide lighting light to the space unit (300) using the standard lighting.

[0090] Thus, as shown in FIG. 4, in the space portion (300), illumination light from the standard light is provided to the second space (302) below the lighting device (200). Of course, depending on the position of the lighting device (200), there may also be a first space (301) where the illumination light is not provided. Therefore, in order to identify all the objects (310, 320, 330, 340) present in the space portion (300), the lighting device (200) must be positioned so that the illumination light can be provided to all of the objects (310, 320, 330, 340).

[0091] Afterwards, when the illumination light is provided to the objects (310, 320, 330, 340) existing in the space (300), the identification unit (140) identifies and registers the objects (310, 320, 330, 340) based on the reflected light of the objects (310, 320, 330, 340) reflected according to the illumination light from the standard illumination (step S13).

[0092] At this time, the identification unit (140) may be a predetermined RGB camera as previously described, and thus identifies the objects (310, 320, 330, 340) by identifying the reflected light reflected from each of the objects by the illumination light from the standard illumination. Such identification of the objects (310, 320, 330, 340) means distinguishing and recognizing the shape, structure, and type of each of the objects (310, 320, 330, 340). Furthermore, the RGB camera may additionally include a polarizing unit, and thus, when receiving and identifying the reflected light reflected from the objects (310, 320, 330, 340), the glare caused by the objects is minimized, thereby allowing the shape, structure, and type of each of the objects to be recognized more accurately.

[0093] In addition, when each of the objects is identified through the identification unit (140) in this manner, the identified objects are registered in the database (150). Then, the identified objects registered in the database (150) can be displayed to the user through the display unit (170) as distinct icons (311, 321, 331, 341). Of course, the display method through this display unit can be varied in many ways.

[0094] Meanwhile, regarding the identification of the above objects, identification through illumination light by the standard lighting is not performed, and the user may simply identify the objects (310, 320, 330, 340) located directly in the space (300) and manually register them in the database (150).

[0095] In addition, the display unit (170) as shown in FIG. 4 may be a window of a mobile terminal as previously described, and thus, through the display unit (170), in addition to icons (311, 321, 331, 341) for each of the objects, a status display unit (102) for displaying the operating status of the control device (100) and an operation unit (103) for controlling the operation of the control device (100) by the user's finger (401) may be displayed simultaneously.

[0096] As described above, the control device (100) and the lighting device (200) are connected to each other, so that the lighting device (200) can be controlled through the control device (100), and each of the objects located in the space (300) is identified, and identification information for the object is registered in the database (150).

[0097] Afterwards, referring to FIG. 2, in the independent control method, the reflection characteristics of each of the registered objects (310, 320, 330, 340) are measured and stored (step S20).

[0098] More specifically, referring to FIGS. 5 and 6, in step S20, first the control unit (130) controls the lighting device (200) in scan mode (step S21).

[0099] At this time, the scan mode means that the illumination light (211) provided from the illumination device (200) to the space (300) is light having a single wavelength or a narrowband wavelength, and that the light having a single wavelength or a narrowband wavelength is provided to change sequentially from a short wavelength to a long wavelength or from a long wavelength to a short wavelength. Thus, when the illumination light (211) is provided in the scan mode, the color of the light provided to the space (300) can change in various ways.

[0100] At this time, the above narrowband wavelength is a wavelength having a predetermined narrow range rather than a single wavelength, as previously explained, and can be defined as a wavelength range in which the object in the space (300) is expressed only as reflected light of a specific color through the light of the said narrowband wavelength.

[0101] As described above, when light provided from the lighting device (200) to the space (300) in the so-called scan mode is controlled, the reflected light from each of the objects (310, 320, 330, 340) is also varied according to the variation of the wavelength of the lighting light (211) in the scan mode.

[0102] Accordingly, the identification unit (140) measures the reflection characteristics of each of the objects (310, 320, 330, 340) in the scan mode (step S22).

[0103] That is, each object (310, 320, 330, 340) is reflected into different reflected lights (221, 222, 223, 224) as the illumination light (211) is provided in scan mode, and the identification unit (140) measures the variable state of the reflected light according to the variation of the wavelength for each object.

[0104] And, information on the variable state of the reflected light for each object measured by the identification unit (140) is stored in the database (150) (step S23). That is, through the reflection characteristics of each object reflected by the illumination light provided with a varying wavelength according to such a scan mode, the reflection characteristics of each object are defined and the relevant information is stored in the database (150).

[0105] For example, as shown in FIG. 6, if the illumination light (211) provided to the space (300) is light having a predetermined illumination spectrum (210), even if light of the same illumination spectrum (210) is provided, the reflected light (221, 222, 223, 224) reflected from each of the objects (310, 320, 330, 340) may have different reflection spectra (312, ..., 342).

[0106] Accordingly, the database (150) stores information about the reflection spectrum of each object according to this lighting spectrum as so-called reflection characteristics.

[0107] Meanwhile, although it has been explained that the illumination light (211) provided in the above scan mode is a single wavelength or a narrow wavelength light, it is not necessarily limited thereto, and the scan mode may be performed by configuring it with light having various emission spectra.

[0108] As described above, when the reflection characteristics of each of the objects (310, 320, 330, 340) existing in the space (300) are stored, independent control for spatial visualization of each of the objects (310, 320, 330, 340) is prepared.

[0109] However, as shown in FIG. 2, even if the reflection characteristics are stored, in the case of a specific object, the measured or stored reflection characteristics may contain a certain error. Accordingly, a step of re-measuring or correcting the reflection characteristics for a specific object may be performed (step S30).

[0110] That is, referring to FIG. 7, for example, if it is determined that there is an error in the measurement result of the reflection characteristics for the second object (320) or that there may be an error, the measurement and storage of the reflection characteristics in step S20 are performed again only for the second object (320).

[0111] Specifically, there is a high possibility that there is an error in the measurement result of the reflection characteristics of a specific object, or that an actual error may exist, such as when the second object (320) is structurally complex, when it is difficult to accurately measure the reflected light depending on the position on the space part (300), when the lighting spectrum configuration in scan mode is not suitable for obtaining the reflection characteristics of the second object, or when it is determined that there are different characteristics when defining the reflection characteristics based on the measured results.

[0112] In particular, if an error occurs in obtaining accurate reflection characteristics due to the structure or positional characteristics of the second object (320), the correction unit (160) readjusts the position, posture, or direction of the identification unit (140) so that the reflected light reflected from the second object (320) can be measured more accurately.

[0113] In contrast, if it is difficult to accurately obtain the reflection characteristics of the second object (320) in the spectrum configuration of the illumination light provided to the second object (320), the correction unit (160) can correct the spectrum configuration of the illumination light (211) provided to the second object (320) so as to control it to obtain more accurate reflection characteristics from the reflected light (222).

[0114] Furthermore, the correction unit (160) can perform a series of operations to resolve errors when it is difficult to measure reflection characteristics due to factors other than those exemplified above or when there are errors in the measurement results.

[0115] Thus, through the correction unit (160), the error in the reflection characteristics of the specific object is resolved and stored in the database (150).

[0116] Afterwards, referring to FIG. 2, in the independent control method, the illumination spectrum of the illumination light is controlled based on the reflection characteristics of the objects (310, 320, 330, 340) to finally control the color of each of the objects (310, 320, 330, 340) (step S40).

[0117] The color control step (step S40) is explained in more detail as follows.

[0118] That is, referring to FIGS. 8, 9a, and 9b, in the color control step (step S40), first, information regarding the reflection characteristics of each of the objects (310, 320, 330, 340) is displayed on the display unit (170) (step S41).

[0119] Information regarding the reflection characteristics of each object located in the space (300) is already stored in the database (150), and therefore, information (405) regarding the reflection characteristics of each object stored in the database (150) is displayed on the display unit (170).

[0120] At this time, the reflection characteristic is a characteristic regarding which each of the objects provides reflected light having a reflection spectrum according to the illumination spectrum of the incident illumination light, and accordingly, which color each of the objects displays externally. Furthermore, even if the illumination light is provided with a variable spectrum as described above, the second space (302) of the space portion (300), that is, the space where the illumination light is provided, is always displayed as light of a specific color, such as white light. At this time, as previously explained, the white light can be displayed as light of a different color according to the user's requirements.

[0121] In this way, even if the spectrum of the illumination light varies, the second space (302) is displayed as white light or light of a specific color, but the principle of varying to different colors for each object is briefly explained as follows.

[0122] Generally, a specific light can be realized by combining three different monochromatic lights, and a specific color of light can be displayed by controlling the intensity of the wavelengths of the monochromatic lights. In this case, there are infinitely many visible light spectra that display the same color, and this property is called metamerism. Therefore, even when displaying the same white light, the spectrum contained in the light can be composed differently, and through this metamerism, the color of the object can be varied differently. This is also true when displaying the same light of a specific color other than white light.

[0123] That is, by utilizing the color metamerism described above, the second space (302) is displayed as white light or a specific color even if the illumination light has a different spectrum; however, as the spectrum of the illumination light is configured differently, the color of the reflected light reflected from each of the objects, i.e., the color of each object, can vary differently from one another. Ultimately, the information regarding the reflection characteristics of each of the objects described above, stored in the database (150), is the information regarding the above.

[0124] Ultimately, through the display unit (170), information regarding the reflection characteristics as described above can be displayed separately for each object.

[0125] Accordingly, the user selects an object for which the color control is desired or required (step S42). As previously described, the user (400) can select such an object by clicking (401) while the object identified in the space (300) is displayed on the display (170).

[0126] In this way, after the object requiring color control is selected (at this time, multiple objects requiring color control may be selected), the user controls the lighting spectrum of the lighting light provided by the lighting device (200) based on information regarding the reflection characteristics of the selected object displayed on the display unit (170) (step S43).

[0127] That is, information regarding the display color of each selected object according to the lighting spectrum is stored in the database (150), and if each of the objects is to be displayed in a specific color, a lighting spectrum for displaying that color must be selected.

[0128] Accordingly, when the illumination spectrum of the illumination light is controlled, that is, selected, the illumination device (200) provides illumination light having the corresponding illumination spectrum to the space (300) by means of the control (step S44).

[0129] Thus, each of the objects (310, 320, 330, 340) located in the second space (302) where the lighting light is provided is externally displayed as a specific color (A, B, C, D) with respect to the controlled lighting spectrum. Through this, displaying each of the various objects located in the space (300) as a specific color can be implemented, and spatial colorization is implemented.

[0130] The colors of the aforementioned objects can be varied by controlling or selecting the lighting spectrum to a different lighting spectrum, thereby enabling the implementation of various spatial colorizations.

[0131] Meanwhile, as described above, information regarding the color of each of the objects displayed externally with respect to a specific lighting spectrum is stored again in the database (150) (step S45), and through this, information regarding the reflection characteristics of each of the objects can be updated.

[0132] FIG. 10 is a block diagram illustrating an independent control system for object color according to another embodiment of the present invention, and FIG. 11 is a schematic diagram illustrating the operating state of the independent control system of FIG. 10.

[0133] The independent control system (11) according to the present embodiment is substantially the same as the independent control system (10) described with reference to FIG. 1, except that the control device (101) is configured as a mobile terminal including a lighting device (180). Therefore, the same reference numbers are used for identical components, and redundant descriptions are omitted.

[0134] Referring to FIG. 10 and FIG. 11, in the independent control system (11) according to the present embodiment, the control device (101) includes the lighting device (180), and the control device (101) may be included in a so-called mobile terminal.

[0135] Thus, the camera in the mobile terminal performs the role of the identification unit (141), and the light provided by the camera can be used as the lighting device (180). Additionally, the control unit (131), database (151), and correction unit (161) constituting the control device (101) may be installed on the mobile terminal in the form of a separate app or program, and the display unit (171) may also correspond to the window of the mobile terminal.

[0136] Meanwhile, as described above, since the lighting device (180) is integrally formed with the control device (101), the independent control system (11) can be operated by running an app or program of the control device (101), and connecting the lighting device (180) to the control device (101) or performing separate authentication can be omitted. Accordingly, the connection part (110) and the authentication part (120) in FIG. 1 can be omitted.

[0137] Accordingly, other than performing the connection and authentication, the configuration or operation of the control device (101) is substantially the same as the configuration or operation of the control device (100) and the lighting device (200) described with reference to FIG. 1.

[0138] In addition, in the independent control method using the independent control system (11) according to the present embodiment, the step (step S11) of connecting the control device (101) to the lighting device (180) through the authentication unit in FIGS. 2 and FIGS. 3 may be omitted. Accordingly, in the case of the independent control method according to the present embodiment, the independent control method described with reference to FIGS. 2 to FIGS. 9b, excluding step S11, can be applied substantially identically, and redundant descriptions are omitted.

[0139] However, in the above correction unit (161), readjusting the position, direction, or posture of the lighting device (180) can be replaced by the user changing the position, direction, or posture of the mobile terminal.

[0140] According to the embodiments of the present invention as described above, by using a lighting device that provides lighting light having various lighting spectra, various objects located in a specific space can be varied to different or the same colors desired by the user, thereby enabling user-customized spatial coloring and spatial object coloring.

[0141] In other words, even if the same white light is provided in the space, the reflection spectrum of the object varies according to the spectrum contained in the white light, thereby enabling active control of the object's color and allowing visibility into various colors. Since this is implemented simply by controlling the illumination light without varying the material, components, or characteristics of the object itself to vary the object's color as in conventional methods, active control of the object's color can be implemented more easily.

[0142] At this time, while connecting the control device to the lighting device, the reflection characteristics of each object can be measured and stored during the process of registering the objects located in the space, and since the information regarding the reflection characteristics of each object stored in this way is provided to the user through a separate display unit, the user can easily control the display of a specific object in a specific color.

[0143] That is, the reflection characteristics of objects in the space can be stored in a database by identifying the objects in the space through standard lighting and then measuring and storing information regarding the reflection characteristics of the objects for each lighting spectrum, i.e., the color of the reflected light, through scan lighting; thus, active control as described above can be easily implemented.

[0144] In this case, if an error occurs in the storage of the reflection characteristics of the objects, information regarding accurate reflection characteristics can be stored in a database by remeasuring or correcting the reflection characteristics of the object. In particular, by adjusting the position or direction of the identification unit (camera), more accurate measurement of the reflected light is possible, thereby allowing for more accurate reflection characteristic information to be stored in a database.

[0145] Furthermore, since the control device is integrated with the lighting device and can be implemented as a mobile terminal such as a smartphone or tablet PC, the customized spatial coloring can be achieved by providing lighting light to the space through the mobile terminal while omitting a separate lighting device. Accordingly, active spatial coloring can be implemented in a wider variety of environments.

[0146] Although the present invention has been described above with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the invention without departing from the spirit and scope of the invention as set forth in the following claims.

Claims

1. A lighting device that provides lighting light having a predetermined lighting spectrum to a space where objects are located; and It includes a control device that controls the illumination spectrum of the illumination light based on the reflection characteristics of each of the above objects, and An independent control system characterized in that each of the objects in the space is displayed as reflected light of a specific color according to the illumination spectrum of the above-mentioned illumination light.

2. In paragraph 1, the control device is, For each of the above objects, a database storing reflection characteristics displayed according to the illumination spectrum; and An independent control system characterized by including a control unit that controls the illumination spectrum of the illumination light provided to the space unit based on the stored information of the above database.

3. In Paragraph 2, An independent control system characterized in that the lighting device is provided in the space independently of the control device.

4. In Paragraph 2, The above control device and the above lighting device are integrally provided in a mobile terminal, and An independent control system characterized by the above mobile terminal being located in the above space.

5. In paragraph 2, the control unit is, An independent control system characterized by controlling standard lighting to be provided to the space through the above lighting device.

6. In paragraph 2, the control device is, An authentication unit that authenticates and connects the above lighting device and the above control device to each other; An identification unit that identifies and registers objects located in the above space; and An independent control system characterized by further including a display unit that displays the operating status of the above-mentioned control device to the outside.

7. In paragraph 6, the above identification unit is, An independent control system characterized by identifying objects identified as existing in the space by providing standard lighting to the space.

8. In Paragraph 6, The control unit controls the lighting device to provide light of a single wavelength or a narrowband wavelength, the wavelength of which is sequentially variable, to the space unit, and The identification unit measures the reflection characteristics of the objects according to the provision of light of the single wavelength or narrowband wavelength, and The above database is an independent control system characterized by storing the measured reflection characteristics.

9. In paragraph 1, the illumination light is, Light composed of at least two monochromatic lights of different wavelengths, and An independent control system characterized in that light not reflected from the above objects is controlled as white light.

10. In paragraph 1, the control device is, An independent control system characterized by including a correction unit that performs re-measurement or correction of an object when an error occurs or is determined to be inaccurate in identifying the objects or storing the reflection characteristics of the objects.

11. In Clause 10, the above correction unit, An independent control system characterized by determining the error or inaccuracy by comparing information regarding the identification or reflection characteristics of the above objects with information regarding the same objects already stored in a database.

12. In Clause 10, the above correction unit, An independent control system characterized by readjusting the position, direction, or attitude of an identification unit that identifies the above objects.

13. In Clause 10, the above correction unit, An independent control system characterized by correcting the composition of the spectrum of the illumination light provided by the above objects.

14. A step of measuring and storing the reflection characteristics of each object located in the space; and The method includes the step of controlling the color of each of the objects by controlling the illumination spectrum of the illumination light provided from the lighting device based on the reflection characteristics of each of the objects. An independent control method characterized in that each of the objects in the space portion is displayed as reflected light of a specific color according to the illumination spectrum of the above-mentioned illumination light.

15. In paragraph 14, the step of measuring and storing the reflection characteristics is, A control unit controls the lighting device to provide light of a single wavelength or a narrowband wavelength, the wavelength of which is sequentially variable, to the space unit; An identification unit measures the reflection characteristics of the objects according to the provision of light of the single wavelength or narrowband wavelength; and An independent control method characterized by including the step of storing the measured reflection characteristics in a database.

16. In paragraph 14, the step of controlling the color of each of the above objects is, A step of displaying the reflection characteristics of the above objects on a display unit; A step of selecting an object to be subject to the above color control; A step of controlling the illumination spectrum of the illumination light based on the reflection characteristics of the selected object; and An independent control method characterized by including the step of providing illumination light having the above-mentioned controlled illumination spectrum to the above-mentioned space.

17. In Paragraph 14, Before the step of measuring and storing the reflection characteristics of each of the above objects, An independent control method further comprising the steps of connecting a control device to the lighting device and registering the objects.

18. In paragraph 17, the step of registering the above objects is, A step of connecting the above control device to the lighting device through an authentication unit; A step in which the control unit of the above-mentioned control device controls the lighting device as standard lighting; and An independent control method characterized by including the step of an identification unit of the above-mentioned control device identifying and registering the objects identified as existing in the space as the above-mentioned standard lighting is provided.

19. In Paragraph 14, After the step of measuring and storing the reflection characteristics of each of the above objects, If an error exists in the measurement result of the reflection characteristics above, the method further includes a step of remeasuring or correcting the reflection characteristics of the object, An independent control method characterized by readjusting the position or direction of the identification unit in the step of remeasuring or correcting as described above.

Images