KR20200122099A - Apparatus for calibrating color temperature and color in lighting system - Google Patents

Abstract

The present invention relates to an apparatus for calibrating color temperature and color of a lighting system and, more specifically, to the apparatus for calibrating color temperature and color of a lighting system, which uses a separate sensor device to output a light closest to an intended color temperature or color in a variable color temperature or color lighting system connected through a serial communication method.

Description

Color temperature and color correction device of lighting system {APPARATUS FOR CALIBRATING COLOR TEMPERATURE AND COLOR IN LIGHTING SYSTEM}

The present invention relates to a color temperature and color correction device of a lighting system, and more particularly, a variable color temperature connected by a serial communication method, or a color lighting system connected to a color lighting system using a separate sensor device to output the light closest to the intended color temperature or color. It relates to a color temperature and color correction device of the lighting system for the purpose.

A number of lighting devices for video shooting are used in television station studios, video production studios, theater and performance stages, and film sets. In large studios or stages, various lightings are used depending on the purpose, most of which are installed in the highest part of the ceiling. Lighting is the most important factor in determining the quality of the shooting result, and if a part of the lighting system does not work as intended by the photographer, unwanted colors or colors may appear in the shooting result. Therefore, monitoring, adjustment and correction of individual lights are required from time to time, and some lights may need to be replaced if necessary.

The lighting system mainly consists of white lighting such as incandescent or fluorescent lamps that we commonly used, and recently, lighting capable of outputting full color to create an effect or save the atmosphere is also used. In addition, depending on the purpose of irradiating light, fill light (a light that fills a certain space with light), key light (a light to highlight the subject), and backlight (back light: a light that makes the outline of the subject clear) In some cases, it is divided into spot lighting, fresnel lighting, and diffuse lighting depending on the method of irradiating light. Places where these lights are installed are usually installed near the highest ceiling in the room, and the ceiling height of a typical set is much higher than that of a person.

In general, lighting control is a control for operating only lighting, and monitoring, adjustment and correction of lighting must be performed separately for each individual lighting. For example, if the life of a specific light is nearing and the brightness, color temperature, color, etc. transmitted through serial communication cannot be properly output, it must be detected by the human eye, even if it is adjustable by an adjustment factor. In this case, a person must take measures to calibrate individual lights by accessing the lights on the ceiling. If adjustment or calibration is difficult, the lights must be removed and new lights or lighting lamps installed. Since all of these tasks must be done manually after checking with the human eye, it takes a lot of cost and manpower to maintain and perform the lighting system.

The present invention was invented to solve the problems of the prior art. Hereinafter, the prior art existing in the technical field of the invention will be briefly described, and then the technical matters that the present invention intends to achieve differentiated from the prior art I would like to describe.

First, Korean Patent Registration No. 0968352 (2010.06.29) relates to an underwater lighting control device, and more particularly, to an underwater lighting control device capable of controlling a lighting lamp used for underwater lighting by a serial communication method. The prior art enables various color expressions in operating an underwater lighting lamp, and has an effect of reducing the cost and manpower required to install and operate a control device.

In addition, Korean Patent Laid-Open Publication No. 2019-0029240 (2019.03.20) relates to a dimming unit and a communication unit for operating an illuminator, and a connection unit fastened to the dimming unit communicates with a console device in a first communication method, A communication unit that communicates with the dimming unit in a second communication method other than the first communication method, and a management unit configured to transmit the received console signal to a dimming unit connected through the communication unit when a console signal is received from the console device through the communication unit. Includes.

On the other hand, the present invention is to measure the presence or absence of an abnormality with a control device located on a wired or wireless communication line in order to output the light closest to the intended color temperature or color in a variable color temperature or color lighting system connected through a serial communication method. It is composed of one or more sensor devices for lighting, so even if there is a concern about changes in the characteristics of the lighting or changes over time, the user does not need to approach individual lights individually. It checks whether the condition is normal or not, and corrects the correctable lighting as much as possible so that it can be operated as close as possible to the original installation condition, and if correction is not possible or needs replacement, it informs the user of it so that they can respond quickly. . The prior arts are those intended to control lighting through serial communication, but conveniently check the state of the lighting using the sensor device of the present invention, perform desired correction, and promptly notify the state information to respond. There is no description of the thing, and there is no suggestion or suggestion, so the difference is clear.

The present invention was created to solve the problems related to monitoring, adjustment and correction of pre-installed lights as described above, so that the light closest to the intended color temperature or color is output from a variable color temperature or color lighting system connected through a serial communication method. It is an object of the present invention to provide a correction device for doing so.

In addition, the present invention consists of a control device located on a wired or wireless communication line and one or a plurality of sensor devices for measuring the presence or absence of an abnormality in the lighting, and the sensor device and the control device are connected by wire or wirelessly, Even if there is a concern about changes in characteristics or aging, the user does not need to approach individual lights individually. Instead, place the sensor device in a lighted place and press a button to check the condition of the entire light. The purpose is to correct it so that it can be operated as close as possible to the original installation condition, and if correction is not possible or needs replacement, it informs the user of this so that they can respond quickly.

The color temperature and color correction apparatus of a lighting system according to an embodiment of the present invention includes a communication controller controlling the plurality of lights through serial communication in a lighting system including a plurality of lights, and correcting brightness values between a plurality of lights. And at least one optical sensor connected to the correction control unit, and the correction controller measures and stores the state of the lighting using the optical sensor when the lighting is in a normal state, and during inspection, the It characterized in that the measured brightness value is compared with the stored brightness value using an optical sensor and corrected by the difference.

In addition, the color temperature and color correction apparatus of the lighting system according to an embodiment of the present invention, before measuring the state of each light when initializing the lighting system, turn off all connected lights, measure the amount of ambient light, store the brightness value, and check At the time, the amount of ambient light is measured in the same manner as at the time of initialization, and the difference in brightness value is applied to the correction.

In addition, in the present invention, the correction controller is connected to a personal computer, a portable terminal, or a user terminal including a combination thereof and initializes and stores the measured brightness value and the brightness value measured during the inspection to continuously check the state of the lighting. It is characterized.

The optical sensor may be connected to the correction controller by wire or wirelessly.

In the lighting system including the plurality of lights, a communication controller for controlling between the plurality of lights through serial communication is configured to include at least one of a wired method or a wireless method. In addition, the communication controller includes a wired or wireless serial communication method.

In addition, the measurement time is shortened by reducing the number of data measured during the inspection rather than the number of data measured and stored during the initialization.

The color temperature and color correction device of the lighting system according to an embodiment of the present invention, by installing a correction controller between the communication controller and the lighting device, by measuring and calibrating the lighting device from a wired or wirelessly connected sensor, individual lighting It is possible to check and calibrate all at once without checking and calibrating one by one, and the operator does not need to be close to the lighting device for calibration, and it has the advantage that it can be applied to most lighting capable of communication control, reducing inspection time and cost. As a result, periodic inspection is possible, and abnormal signs of specific lighting can be detected in advance, so that the lighting system can always be operated in the best condition.

In addition, during the initialization and inspection process, the operator installs only the optical sensor and gives a command to complete the entire process without operator intervention.Therefore, inspection can be performed in the middle of the night or after work hours, greatly contributing to the reduction of maintenance and operation costs of the lighting system. There is an effect.

1 is a block diagram of a color temperature and color correction apparatus of a lighting system connected through serial communication according to an embodiment of the present invention.
2 is a block diagram showing an internal configuration of a correction controller according to an embodiment of the present invention.
3 is a diagram showing the internal configuration of a sensor device according to an embodiment of the present invention.
4 is a flowchart showing the operation of the illumination correction apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the color temperature and color correction apparatus of the lighting system of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals in each drawing indicate the same member. In addition, specific structural or functional descriptions of the embodiments of the present invention are exemplified only for the purpose of describing the embodiments according to the present invention, and unless otherwise defined, all terms used herein including technical or scientific terms They have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this specification. It is desirable not to.

According to an embodiment of the present invention, it is premised that a serial communication method is used to control brightness, color temperature, and color of lighting. There are a number of communication protocols such as RS-232, RS-485, and RS-422 for serial communication, and you can use them as they are or modify them to form a communication network for various purposes, and also create a communication protocol to save data. By transmitting and receiving, various devices can be controlled. For example, it is possible to define a protocol that can control up to 512 lighting elements by connecting serial communication via wire. The signal method is RS-485, and lights with multiple serial communication control interfaces are serially connected to one serial communication controller. The connection terminal can be a 5-pin XLR or RJ-45 jack. The transmission speed is 250 Kbit/s in one-way communication, and there is no error detection or correction function, thus responding to possible error problems through repeated transmission. Eight bits per element of light, or 256 levels, are provided. For example, if only the brightness can be controlled, the brightness can be adjusted in 256 steps. If the lighting is capable of controlling the brightness and color temperature, two channels should be used, one for brightness and the other for color temperature control. If it is a full-color lighting consisting of white LED and R,G,B LED, 3 or 5 channels can be used.When configured with 3, 1 channel is assigned to brightness, the other 2 channels are assigned to color coordinates, and consists of 5 channels. In this case, two channels can be assigned to the brightness and color temperature of white light, and three channels can be assigned to the brightness of R, G, and B lights. This channel allocation method is not absolute and depends on the circuit configuration in the lighting system and the needs in the field.

The lighting control device through serial communication may be composed of a plurality of slide volumes, selection switches, and serial communication output ports. Since it is practically impossible to install 512 slide volumes because it is possible to control 512 lights, there are 4 to 16 slide switches, and lights are grouped into groups of 4 to 16 and classified into groups. There is a selection switch that can select a group to respond to multiple lighting controls.

1 is a configuration diagram of a color temperature and color correction apparatus of a lighting system connected through serial communication according to an embodiment of the present invention.

As shown in Figure 1, the color temperature and color correction device of the lighting system connected by serial communication according to an embodiment of the present invention according to the present invention is a communication controller 100, a correction controller 110, a plurality of lights ( 120), it is configured to include an optical sensor 130 for transmitting a signal to the correction controller by detecting the lighting.

Here, the optical sensor 130 and the correction controller 110 may be connected wirelessly or wired. Before performing the measurement, the correction controller 110 must be initialized. To do this, it is recommended that the outside environment is dark and the lighting is turned off. In this case, the (RGB) sensor should be placed in the same position for more accurate initial measurement. When the initialization is completed, the lights are turned on one by one and the color temperature and color are corrected when the values are stored in the correction controller 110. In this case, the plurality of lighting equipment may be controlled according to values input to the correction controller, and color temperature and brightness are adjusted accordingly.

The optical sensor 130 has an optical sensor for measuring R, G, and B components, which are three primary colors of illuminant light, and a wired or wireless communication unit for transmitting optical sensor output values to the control unit. In front of the optical sensor, a semi-spherical white translucent window is installed to evenly receive light.

2 is a block diagram showing an internal configuration of a correction controller according to an embodiment of the present invention.

As shown in FIG. 2, the correction controller 110 includes a host interface 210 capable of interworking with an external controller, a correction processing unit 200 for serially sending and receiving signals, and a status display unit displaying a current state on the display. (240), a user input unit 220 for allowing a user to input a signal to the correction controller, and a sensor communication unit 230 for communicating with the optical sensor. Here, the sensor communication unit 230 may be connected by wire through the sensor connection unit or from a long distance through a wireless connection unit. When there is no special change value in correction, the value of DATA IN 250 is output as it is. However, if correction is required, the value received from the sensor communication unit must be stored in the correction controller and sent to the DATA OUT 260 for correction.

That is, the correction controller is a sensor communication unit 230 that can receive the output value of the sensor wired or wirelessly, the DATA IN 250 that is an input unit of serial data that can receive the output signal of the communication controller 100, and a lighting device. It may be configured to include a DATA OUT 260 that is an output unit capable of outputting a serial signal, and a host interface 210 that can exchange various types of information with a host computer.

During normal operation, the correction controller converts the output signal of the communication controller as it is or partially according to the lighting channel and outputs it to the lighting device. If all lights are normal and there are no elements to be adjusted or corrected, the correction controller will receive the output of the communication controller and output it as it is without changing it. If some lighting needs to be adjusted, the data of other channels is exported as it is, and the data of the corresponding channel is changed and output according to a predetermined adjustment method. Whether or not the lighting of a particular channel is to be adjusted, the operator sets the method directly for some needs, or the adjustment method and the range of the adjustment values from the measured results with the light sensor. This correction process can be managed and matched with a LUT (Look-Up Table). That is, by matching the sensing value of the optical sensor and the information to be corrected with the LUT, a correction value for the sensing value of a specific optical sensor is output to adjust the color temperature and brightness of the corresponding light.

3 is a diagram showing the internal configuration of a sensor device according to an embodiment of the present invention.

As shown in FIG. 3, the optical sensor according to an embodiment of the present invention includes a translucent white receiving field 300, an R, G, and B sensor 320 for sensing light, and a wired/wireless connection 310 connected to external equipment. ). The light is received through the R, G, and B sensors 320 and transmits data to the correction controller through the wired/wireless connection 310.

4 is a flowchart showing the operation of the illumination correction apparatus according to an embodiment of the present invention.

As shown in FIG. 4, a color temperature and color correction method of the lighting system according to an embodiment of the present invention is as follows. First, in order to collect the channel information of the communication controller, it is necessary to check the lighting operation state and input the channel allocation information.

The color temperature and color correction method shown in FIG. 4 is performed by the illumination correction device shown in FIG. 1. In one embodiment, the feedback system of the lighting correction device may include one or more types of correction controllers, sensors, lighting and other similar devices. For example, the photosensor 130 may operate by connecting one or more RGB photosensors 320 to a feedback system for measuring lighting equipment by measuring a plurality of lights. Before operation, the number of lights should be identified, and the light intensity measurement should be started with all lights turned off. At this time, the threshold value must be saved.

When the lighting correction device is driven for the first time, a specific light is used as a reference, and the light is sequentially moved and the calibration process is repeated until the last light is measured. Here, N denotes a plurality of illuminations and M denotes a correction amount. Since the elements to be corrected are largely color temperature, color, and brightness, it is necessary to correct each element separately. If the RGB output exceeds the maximum control value in the correction step, the correction operation of the corresponding light is completed and the correction operation of the next light is started. When N reaches the number of lights and calibration for all lights is completed, the operation stops and the calibration process is completed. When the correction process is completed, the correction value of each light is stored in the correction controller, and when the corresponding light is operated, an environment capable of automatically correcting color temperature, color, and brightness can be configured.

At this time, if the correction value becomes larger than a certain level, it is possible to control the lighting expression more closely by giving a warning to the user whether or not to perform correction. By using the color and temperature correction device according to this embodiment, it is possible to efficiently maintain a problem or aging LED without visually finding a change in color of lighting.

When measuring lighting, you must first place at least one sensor in the center where the light is illuminated. If it is difficult to receive light from all lights with only one sensor due to a wide area of illumination, a plurality of sensors are installed. At this time, each sensor must be individually connected to the calibration controller, and each must be assigned a unique number so that the calibration controller can identify it. Also, the correction controller takes over the operation of the serial channel connected to the lights from the communication controller. In other words, the output of the communication controller inputted to the correction controller is ignored, and the correction controller creates a serial signal by itself and transmits it to each light. In this case, prior information on the control method of each of the lights must be input to the correction controller. For example, lights connected to channels 1 and 2 are white light lights with controllable brightness and color temperature, and lights connected to channels 3, 4 and 5 are full-color lights capable of outputting brightness and color. Should be. This is a task that must be done when installing a serial channel, and it is something that an operator should be aware of. The contents are input to the calibration controller through a host computer or through a button attached to the calibration controller.

Also, before measuring, the correction controller must be initialized (S110 to S140). As mentioned above, this means setting the color temperature value and color coordinate value corresponding to the serial channel control value of each light after inputting the type of light connected to the serial channel. It is very difficult for the operator to input this value individually. The initialization process is performed when the installation of all the lights involved in the measurement is finished, and the lights are determined to be in a normal state while the calibration controller and the communication controller are connected. In other words, it is a process in which the calibration controller stores the measured values of the lights in the normal state in advance. Since the optical sensor also has a measurement error, the location of the sensor installed during the initialization process and the measurement process should be the same as possible, and the same sensor should always be placed in the corresponding location for accurate measurement. When the initialization starts, the calibration controller checks the communication status with the sensor, sets the brightness of all lights to 0, and receives the measured R, G, B output values from the sensor. This is information about the ambient light before measurement, and the smaller this brightness is, the more accurate the measurement, so if you set a threshold and the ambient brightness is brighter than that threshold, the operator may be warned and the measurement may become inaccurate. Should be informed. The ambient brightness value and color are recorded as initial values and used for measurement (S110 to S140).

After measuring the ambient brightness, turn on one at a time starting from the first light, but only turn on one light at a time. If there is one control element of a light, it is brightness control, so the brightness value starts from 0 and gradually increases to the maximum brightness, and then the brightness is calculated and stored from the values measured by the sensor. If there are two or more control elements, one is brightness and the other is a control value for color temperature or color coordinates. In this case, the brightness is sequentially increased, but for several brightness values, the sensor value is stored for each predetermined period while changing a color temperature or a control value corresponding to a color coordinate (S150 to S190). Of course, you can store all color temperature or color coordinate values for all brightness values, but this will take a lot of time. For example, if you want to store a measurement value corresponding to all control values of a full-color light with 8 bits of brightness, 8 bits of color coordinate x-axis, and y-axis, it requires a lot of time and storage space, as 256*256*256 = 16,777,216 In reality, it is unlikely that this would be necessary. In reality, even if only 16 values are selected out of 256 values, 4,096 cases occur in the case of full-color lighting. Initialization only needs to be performed once until the lighting system is changed, so even if it takes a little time, if you select and measure many values, you can perform more precise correction after measuring later. When the initial values of all installed lights are measured and recorded, the initialization is virtually finished, and control of the serial communication channel is transferred to the communication controller. In addition, since it is assumed that all lights are in a normal state immediately after initialization, the correction controller can transmit the signals of the communication controller to the lights without any modification.

Measurement is possible after initialization is complete. In fact, measuring immediately after initialization does not mean much because the same value will be measured, but it can be said to be meaningful in terms of checking whether the system has any other unknown errors. However, it will usually be done at regular intervals after initialization to check the lighting, or for inspection before shooting or event.

The measurement process is virtually identical to the initialization process. However, since initialization is not performed frequently, measurement at as many control values as possible and saving them even if the initialization time is lengthened, whereas measurement must be repeatedly performed within a limited time, so it is possible to measure at less control values than initialization. have.

As with initialization, the sensor must be positioned once the measurement starts. As mentioned above, the location of the sensor installed during the initialization process and the measurement process should be the same location as possible, and the same sensor should always be placed at the location in order for accurate measurement to be performed. When the measurement starts, the calibration controller checks the communication status with the sensor, sets the brightness of all lights to 0, and receives the measured R, G, B output values from the sensor. This is information about the ambient light before measurement, and as at initialization, the smaller the brightness, the more accurate the measurement. Therefore, if a threshold is set and the ambient brightness is brighter than the threshold, a warning is given to the operator and the measurement is incorrect. You must be informed that it may cause harm. In addition, a warning should be given to the operator even if the measured ambient brightness shows a difference of more than a certain value from the measured ambient brightness during initialization.

After measuring the ambient brightness, measure while turning on one at a time from the first light. The measurement process is almost similar to the initialization process. However, in the case of time-constrained measurement, it can be measured in fewer control values than in initialization. For example, if the brightness value was measured at 16 intervals during initialization, 16 measured values would have been saved in the case of 8-bit 256 levels. If time is limited during measurement, it is possible to obtain only 8 measurement values at intervals of 32. This can greatly shorten the measurement time when there are more than two measuring elements. For example, in the case of full-color lighting, if the brightness, x-axis color coordinates, and y-axis color coordinates are adjusted, if you measure 8 for each control element at initialization, a total of 512 measurements should be performed. However, if you reduce it by 4 at the time of measurement, it will be reduced to 64, and the measurement time can be reduced to 1/8.

The measured value of each light measured is compared with the value measured and stored during initialization. If the difference is equal to or greater than the predetermined threshold, the number of measured values for the corresponding lighting is the same as that at the time of initialization, and measurement is performed again in the same way. Then, these values are compared with the values measured and stored at the time of initialization, and if the difference is more than the threshold, it is determined as the final correction target. That it is determined as a correction target means that the brightness value has changed all or part of the section compared to the time of initialization, or that the color temperature or color coordinate has changed all or part of the section compared to the time of initialization.

Correction of the control value uses LUT (Look Up Table). For the 8-bit 256 level, 256 8-bit storage is required to use the LUT. And the input signal becomes an address value, and 8-bit data is output. If there is no correction, the address value and stored data are the same. Then, the input data value is sent to the output as it is. When performing correction, certain data is changed so that the intended correction value is output for the input value.

As an example of correction, if the brightness becomes darker overall than the initial initialization, it is impossible to output the maximum brightness that can be output during initialization after correction. Therefore, in this case, the LUT data is slightly larger than the LUT address by a certain ratio, so that the darkened ones are corrected in a direction to make the darker lighter. When the brightness value of a specific section changes, the LUT is changed so that the brightness value of that section is properly output. In this case, a correction value other than the measured value may be determined by interpolation. In the case of color temperature or color coordinates, the LUT can be installed and calibrated in the same way. If correction is difficult due to severe changes in brightness, color temperature, or color coordinates, a warning should be given to the operator. At this time, the operator can choose whether to correct as much as possible or not.

On the other hand, if the measured value of the ambient light amount before measurement differs by more than a certain value from the amount of ambient light at the time of initialization, an error may occur in the inspection. In this case, the corresponding element of the amount of ambient light should be subtracted from the measured value at the time of initialization and the measured value at the time of inspection, respectively, and corrected.

When the measurement and calibration process is applied to all lights connected to the serial communication channel, the inspection and calibration process is finished. Until the next inspection, the lighting is operated with the correction value maintained.

As described above, the color temperature and color correction device of the lighting system according to an embodiment of the present invention, by installing a correction controller between the communication controller and the lighting device, measuring and calibrating the lighting device from a sensor connected by wire or wirelessly. By doing so, it is possible to check and calibrate at once without checking and calibrating individual lights, and there is an advantage that the operator does not have to be close to the lighting device for calibration, and it is applicable to most lights that can be controlled by communication. Periodic inspection is possible by shortening the inspection time and cost, and since abnormal signs of specific lighting can be detected in advance, there is an effect that the lighting system can always be operated in the best condition.

In addition, during the initialization and inspection process, the operator installs only the optical sensor and gives a command to complete the entire process without operator intervention.Therefore, inspection can be performed in the middle of the night or after work hours, greatly contributing to the reduction of maintenance and operation costs of the lighting system. There is an effect.

In the above, the preferred embodiment according to the present invention has been described above, but the technical idea of the present invention is not limited thereto, and each component of the present invention is changed or modified within the technical scope of the present invention in order to achieve the same object and effect. Can be.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but these are only exemplary, and those of ordinary skill in the field to which the technology pertains, various modifications and other equivalent embodiments are possible. I will understand the point. Therefore, the technical protection scope of the present invention should be determined by the following claims.

10: lighting correction device
100: communication controller 110: correction controller
120: light 130: light sensor
200: correction processing unit 210: host interface
220: user input unit 230: sensor communication unit
240: status display unit 250: data input unit
260: data output unit 300: translucent white receiving field
310: wired/wireless connection 320: RGB sensor

Claims (7)

A communication controller for controlling between the plurality of lights through serial communication in a lighting system including a plurality of lights;
A correction controller for correcting a brightness value between a plurality of lights; And
At least one optical sensor connected to the correction controller; Including,
When the lighting is in a normal state, the correction controller measures and stores the state of the lighting using the optical sensor, and when checking, the brightness value measured using the optical sensor is compared with the stored brightness value, and the difference Color temperature and color correction device of the lighting system, characterized in that to correct by. The method according to claim 1,
When initializing the lighting system, before measuring the state of each light, turn off all connected lights, measure the amount of ambient light, and store the brightness value, and also measure the amount of ambient light in the same way as at the time of initialization during inspection to determine the difference in brightness. Color temperature and color correction device of a lighting system, characterized in that applied to the correction. The method according to claim 1,
Lighting characterized in that the correction controller is connected to a personal computer, a portable terminal, or a user terminal including a combination thereof and initializes and stores the measured brightness value and the brightness value measured during inspection to continuously check the state of the lighting. System color temperature and color correction device. The method according to claim 1,
The optical sensor is a color temperature and color correction device of a lighting system, characterized in that the wire or wireless connection to the correction controller. The method according to claim 1,
In the lighting system including the plurality of lights, the communication controller for controlling the plurality of lights through serial communication is configured to include at least one of a wired method or a wireless method. The method according to claim 2,
Color temperature and color correction apparatus of a lighting system, characterized in that to shorten the measurement time by reducing the number of data to be measured during the inspection than the number of data to be measured and stored during the initialization. An initialization step of turning off all lights and measuring and storing the amount of ambient light;
A comparison step of comparing whether the amount of ambient light exceeds a predetermined threshold;
If the threshold value is not exceeded, performing illumination correction for each illumination; Including,
When the lighting is in a normal state, the state of the lighting is measured and stored using an optical sensor, and during inspection, the measured brightness value is compared with the stored brightness value using the optical sensor, and the difference is corrected by the difference. Color temperature and color correction method of lighting system.

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