KR20110089681A - Solar light apparatus for illumination and method for controlling thereof - Google Patents

Abstract

PURPOSE: A solar light apparatus for illuminance and a method for controlling thereof are provided to maintain a certain level of illuminance by driving a sub-lamp when providing indoor illuminance using sunlight. CONSTITUTION: In a solar light apparatus for illuminance and a method for controlling thereof, a sub lamp charges electricity energy which is generated from at least one generation unit and is operated to provide a certain level of illuminance in consideration of a illuminance control signal while radiating light using charged electricity. A central controller(60) receives stored energy information and the state of a first lamp and transmits the illuminance control signal by comparing measured illuminance with a reference illuminance.

Description

Solar lighting device and its control method {SOLAR LIGHT APPARATUS FOR ILLUMINATION AND METHOD FOR CONTROLLING THEREOF}

The present invention relates to a solar lighting apparatus and a control method thereof, and more particularly, to a solar lighting apparatus that performs optical communication in order to maintain a constant illuminance by operating an auxiliary light when providing indoor lighting using sunlight and its It relates to a control method.

Human beings live by constructing buildings to live a comfortable life independently from external environmental conditions or to achieve specific purposes. Artificial lighting is necessary for living in such a residential environment or building. However, these artificial lighting devices consume a separate energy source and thus consume resources, and fossil energy is generally used for such consumed resources. Currently, solar energy, wind energy, hydrogen energy, etc. are being developed as energy sources to replace fossil energy. Among them, research is being actively conducted to use enormous heat and light energy contained in sunlight emitted from the sun.

Solar energy is a pollution-free, clean energy that can be obtained almost free of charge until the sun is extinguished.

In addition, there are many benefits to life, such as sterilization, photosynthesis of plants, and photosynthesis of the human body due to its unique functions. For this reason, solar lighting apparatuses using solar energy as an example of the use of energy sources are in the spotlight. Therefore, in order to generate an energy saving effect and at the same time to use the unique characteristics of natural light usefully, a solar lighting apparatus that collects and delivers sunlight to underground spaces or inside large buildings is required.

Thus, the conventional solar lighting device collects sunlight from outside the building, and transmits the collected sunlight to the room using the optical fiber.

However, such a conventional solar lighting apparatus has a problem that the indoor illuminance is different from the illuminance conditions desired by the user due to factors affecting the brightness of sunlight, such as fluctuations in sunshine and changes in weather. Thus, there is a problem in that inconvenience of the user living in the room using the solar lighting device occurs.

The present invention has been made in view of the necessity as described above, the solar lighting apparatus for performing optical communication to maintain a constant illuminance by operating the auxiliary lighting in the case of providing lighting indoors and underground using solar light And a control method thereof.

Another object of the present invention is to provide a solar lighting apparatus and a method for controlling the lighting by performing optical communication through a light guiding means for delivering the collected solar light to indoor and underground use.

Still another object of the present invention is to store electrical energy produced through solar power, wind power, and hydro power generation when indoor and underground living spaces do not maintain constant illuminance through condensed sunlight, and the stored electrical energy. The present invention provides a solar lighting apparatus and a method of controlling the same, which maintains indoor and underground living spaces at constant illuminance through auxiliary lighting driven by renewable energy without using resources.

Another object of the present invention is to prevent the voltage drop and power loss inevitably occurring as the distance of the auxiliary light from the power generation and power storage equipment is far from driving the auxiliary light with renewable energy to maintain the illuminance, In order to provide convenience in construction, it is necessary to install a power generation and power storage facility adjacent to the light collector and to provide a solar lighting device and a control method thereof to supply power to the light tracking module of the light collector and the auxiliary lighting which is integrated with the light collector. have.

Technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Solar lighting apparatus according to an aspect of the present invention for achieving the above object, transmits the light of the sun collected through the condenser to the light guide, scattering and diffusing the light transmitted through the light guide in the room and scattering and diffusion In the solar lighting apparatus for measuring the illuminance of the light, the electric energy produced by using at least one power generation means, and the light is radiated by using the stored electric energy, but the specific illuminance in consideration of the illumination control signal Auxiliary lighting unit driven by; And receiving the stored electrical energy information by performing optical communication with the auxiliary lighting unit by the light guide unit, comparing the measured illuminance with a predetermined predetermined illuminance, and comparing the result with the stored electrical energy information. In consideration of this, characterized in that it comprises a central control unit for transmitting the illuminance control signal.

Preferably, the power generation means is characterized in that at least one of solar power, wind power or hydro power generation means.

Preferably, the auxiliary lighting unit, the power storage facility for storing the electrical energy produced by using the at least one power generating means; Primary auxiliary lighting for irradiating light of a specific illuminance to the light guide by the stored electrical energy; And optically communicate with the central controller through the light guide to transmit the stored electrical energy information, receive an illumination control signal from the central controller, and control the primary auxiliary lighting with a specific illuminance corresponding thereto, and the primary auxiliary. It characterized in that it comprises a charge and discharge control unit for transmitting information about the state in which the lighting is driven to the central control unit.

Preferably, the power storage device is composed of a secondary battery having a large capacity, a short lifespan, a long charge / discharge time, and a capacitor having a small capacity, a long life, and a short charge / discharge time.

Preferably, the collector is characterized in that it comprises a light tracking module for tracking and moving the light of the sun.

Preferably, further comprising a secondary auxiliary light for operating by the electricity supplied to the room under the control of the central control unit to emit light when the constant illuminance cannot be maintained by the electrical energy stored in the auxiliary lighting unit. It features.

Preferably, when the illuminance scattered and diffused in the room by the light of the sun condensed through the light collector is higher than the predetermined illuminance, further comprises a light blocker for blocking the scattered and diffused light under the control of the central control unit; It is characterized by.

Preferably, the light guide portion is characterized in that the optical fiber.

The control method of the solar lighting apparatus according to another aspect of the present invention, the central control unit of the solar lighting apparatus for transmitting the light of the sun collected through the condenser to the light guide, and scattering and diffusing the light transmitted through the light guide in the room A control method of the method comprising: measuring the illuminance of the scattered and diffused light; And comparing the measured illuminance with a predetermined predetermined illuminance and blocking light scattered and diffused in the room according to the comparison result, or performing optical communication with the auxiliary lighting unit through the light guide unit to identify the primary auxiliary lighting. And controlling to be a room of the predetermined illuminance by driving the illuminance, wherein the auxiliary lighting stores the renewable electric energy produced using at least one power generating means, and uses the stored electric energy to store light. Radiating but characterized in that driven by the illumination control signal.

Preferably, the step of controlling to be the room of the predetermined illuminance, if the measured result, the illuminance of the light is lower than the predetermined illuminance, by driving the primary auxiliary light using the electrical energy stored in the auxiliary lighting unit Transmitting an illumination control signal to the auxiliary lighting unit by performing optical communication using the light guiding unit to emit light; And, as a result of the comparison, if the measured illuminance is higher than a predetermined illuminance, characterized in that it comprises the step of blocking the light scattered and diffused in the room.

Preferably, the primary auxiliary lighting is driven, the illumination control signal received by the method of optical communication using the light guide from the central control unit has a driving class divided by a predetermined step from the minimum output to the maximum output capable of outputting the primary auxiliary lighting. It is characterized in that driven according to each step.

Preferably, when the primary auxiliary lighting is driven in each step according to the illuminance control signal received through the optical communication from the central control unit, information about the driving state of the primary auxiliary lighting to the central control unit by the optical communication method using the light guide unit. And transmitting to the central control unit to determine an operation state of the primary auxiliary lighting.

Preferably, although the indoor illuminance does not maintain the constant illuminance even though the primary auxiliary illuminator is driven at the maximum output by utilizing the electrical energy stored in the auxiliary illuminator, 2 operated by electricity supplied to the room. And controlling the car to emit light by driving the secondary lighting.

Preferably, the central control unit further comprises the step of receiving the electrical energy information and the driving state information signal of the primary auxiliary light from the auxiliary lighting unit periodically by the optical communication using the light guide unit.

Preferably, the light guide portion is characterized in that the optical fiber.

The present invention by the above-mentioned problem solving means to create an environment capable of photosynthesis in the human body as well as photosynthesis of plants by supplying sunlight to indoor and underground residential space that sunlight does not reach, sterilization action of sunlight The effect is to provide a more comfortable living environment.

In addition, there is an effect that can reproduce the color of the natural state by configuring a lighting device using direct sunlight for the problem that can not have a high color rendering due to the technical limitations of the existing artificial lighting devices.

In addition, by installing auxiliary lighting that can control the illumination, the existing solar lighting device can not maintain a constant illuminance according to sunshine and weather conditions, so that the illumination of indoor and underground living lights can be kept constant. Therefore, there is an effect of increasing the convenience for indoor living.

In addition, by accumulating new and renewable electric energy produced using solar light, hydropower, wind power, etc., the secondary lighting and light tracking module can be supplied as electric energy, thereby reducing electricity costs and reducing resource consumption.

In addition, by installing auxiliary lighting to maintain constant illuminance into primary and secondary lighting, voltage inevitably generated during long-distance transfer of new and renewable electric energy of power generation and storage facilities installed outdoors to indoors and underground. There is an effect that can effectively utilize the renewable electric energy without loss of power, such as falling.

In addition, the central control unit sends the illuminance control signal to the auxiliary lighting unit in consideration of the electric energy stored in the electrical storage facility and receives the primary auxiliary lighting driving status information signal from the auxiliary lighting unit. There is an effect that can be applied to various types of buildings without physical separation distance and location constraints.

In addition, in the bidirectional communication between the central control unit and the charge / discharge control unit, which are physically installed at a long distance, optical communication is performed using the light guiding means, which is the basic configuration of the solar lighting device, thereby eliminating the communication line necessary for the communication between the central control unit and the auxiliary lighting unit. Since it can be effective in reducing the construction process and cost of the building installation step, there is an effect that can simplify the installation of the solar lighting device installed indoors and shorten the time required for installation.

In addition, by performing the optical communication using the light guide means, there is a free effect in terms of environmental constraints such as harmful electromagnetic waves that can be generated by the communication equipment and wireless communication to be provided for communication.

1 is a block diagram showing a solar lighting apparatus according to an embodiment of the present invention.
2 is a flow chart showing a control method of a solar lighting apparatus according to an embodiment of the present invention.

The solar lighting apparatus and the control method according to the present invention collects sunlight from the outside of the building and transmits the sunlight to the interior through the optical fiber to transmit the sunlight to the indoor or underground structure, in addition to the photovoltaic device to provide auxiliary lighting It proposes a technical configuration to enable the user to maintain a predetermined constant illuminance. In this case, the solar lighting apparatus of the present invention does not have an additional communication line for controlling the auxiliary lighting by the central controller which controls the overall solar lighting apparatus, and controls the solar lighting apparatus by performing optical communication using an existing light guide unit. It proposes a technical configuration to make it possible.

In the following description, specific details of the solar lighting apparatus of the present invention and a control method thereof are shown to provide a more general understanding of the present invention, and the present invention may be readily implemented without these specific details and by their modifications. It will be apparent to one skilled in the art.

In the following description, the illuminance control signal will be immediately used to mean a control signal transmitted from the central controller to the auxiliary lighting unit in consideration of the stored electrical energy information and a specific illuminance that is less than a predetermined predetermined illuminance. In addition, the electrical energy information accumulated in the following description is the capacity of the electrical energy when the electrical energy produced by using at least one of the power generation means of renewable energy such as solar, wind, hydropower is stored in the electrical storage facility It will be used immediately to mean an information signal indicating. In addition, in the following description, the driving state information signal is a state signal transmitted from the auxiliary lighting unit to the central control unit for a value defined by dividing the state in which the primary auxiliary lighting is driven in a predetermined unit from the minimum output to the maximum output according to the illumination control signal. Will be used immediately. In addition, in the following specific illuminance is used immediately to mean the illuminance to make the indoor illuminance under the predetermined illuminance by using the primary auxiliary light when the indoor illuminance by the sunlight falls below the predetermined illuminance set by the user. will be.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail, focusing on the parts necessary to understand the operation and action according to the present invention.

1 is a block diagram showing a solar lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the solar lighting apparatus 100 according to the present invention includes a light collector 11, a light guide 12, a light diffuser 13, a lamp 14, a light sensor 15, and a light interrupter 16. ), The auxiliary lighting unit 50, the central control unit 60 and the secondary auxiliary lighting (18).

The collector 11 is located outdoors to collect light (sunlight) emitted from the sun. The light collector 11 is moved by the light tracking module 17 for tracking the position of the sunlight so that the incident angle of the sunlight can be maintained at a constant angle. The light tracking module 17 may be provided separately from the light collector 11 or may be included in the light collector 11, and the power consumption of the light tracking module 17 is stored in the power storage facility 51 through the charge / discharge control unit 53. Can be supplied from

The light guide unit 12 transmits the light of the sun incident from the light collector 11 and the visible light emitted from the auxiliary lighting unit 50 to be described later to a place requiring indoor or underground lighting. In addition, the light guide part 12 transmits optical information (optical communication signal) based on an optical communication method for controlling the auxiliary lighting unit 50 to drive the auxiliary lighting. Here, the optical communication method is interpreted as information that is promised according to various states by using the on / off blinking signal of light having a certain period (frequency). For example, the optical communication method is described in 60 minutes. Transmitting the optical information by repeating the on-off signal at 1 second intervals (60Hz) of the signal is interpreted to operate the primary auxiliary lighting at the minimum output for this periodic optical communication signal. It can be used as a method.

The light guide part 12 may be an optical fiber that transmits light, and may be a glass optical fiber or a plastic optical fiber according to a characteristic of transmitting light. Alternatively, another optical fiber may be used.

The light scattering part 13 evenly scatters the light transmitted through the light guide part 12 in the room.

The luminaire 14 is to increase scattering and diffusion of light scattered by the light scattering unit 13, and may include a reflector, a diffusion lamp, a light pipe, a diffusion plate, a light guide plate, and the like.

The light sensor 15 detects the illuminance of light diffused and scattered in the room through the luminaire 14. The illuminance of the light detected by the light sensor 15 is measured by the central controller 60 to be described later.

The light interrupter 16 differentially cuts the illuminance illuminated by sunlight under the control of the central controller 60 to lower the predetermined level or less. Here, the light circuit breaker 16 blocks the light of the sunlight to maintain the constant illuminance if the predetermined illuminance or more set by the user.

The light tracking module 17 tracks sunlight to collect more sunlight. It is preferable to allow the light collector 11 to be moved by the light tracking module 17 which tracks the position of sunlight. The light tracking module 17 may be provided inside the light collector 11 or may be configured separately. The power consumed in the light tracking module preferably consumes electrical energy stored in the power storage facility 51.

The auxiliary lighting unit 50 stores electric energy produced by using at least one power generation means (for example, solar power generation 20, wind power generation 30, and hydro power generation 40), and stores the stored electric energy. To emit light (visible light). At this time, the auxiliary lighting unit 50 periodically transmits the electric energy information stored in the power storage facility 51 to the central control unit 60 by optical communication using the light guide unit 12. The central control unit 60 determines the illuminance of the room and the auxiliary lighting unit 50 by the optical communication method through the light guide unit 12 in consideration of electric energy information stored in the power storage facility 51 when the illuminance set by the user is not sufficient. Send the illuminance control signal to. Then, the auxiliary lighting unit 50 receives the illumination control signal from the central control unit 60 by optical communication through the light guide unit 12, drives the primary auxiliary lighting with the illumination corresponding to the received illumination control signal, and performs the primary The driving state information of the auxiliary light is again sent to the central control unit 60 by optical communication through the light guide unit 12. The auxiliary lighting unit 50 is a power storage facility 51 for storing the electrical energy produced by using at least one power generation means, and the electrical energy stored by performing optical communication with the central control unit 60 through the light guide unit 12 Charge and discharge control unit 53 for transmitting the information and the primary auxiliary lighting driving state information, receiving the illumination control signal from the central control unit 60, and controlling the primary auxiliary lighting with a specific illuminance corresponding thereto; And primary auxiliary lighting 55 for irradiating light of a specific illuminance to the light guide portion 12 using the electric energy stored under the control of 53.

The central controller 60 controls to illuminate the room with a predetermined predetermined illuminance by sunlight used basically. At this time, the central controller 60 controls the light blocker 16 to block the sunlight when it is determined that the indoor illuminance using the sunlight sensed and measured by the light sensor 15 is greater than a predetermined illuminance. In addition, if you do not want the sunlight to enter the room during the day, the user can directly block the sunlight flowing into the room by operating the light blocker (16). In this case, it is preferable to differentially block the light diffused and scattered in the room in consideration of the indoor illuminance.

In addition, the central control unit 60 performs optical communication with the auxiliary lighting unit 50 by the light guide unit 12 to receive the stored electrical energy information, compares the measured light intensity with a predetermined predetermined illuminance, and compares the same. In consideration of the result and the stored electrical energy information, the illuminance control signal is transmitted to the auxiliary lighting unit 50 by optical communication using the light guide unit 12, and receives primary auxiliary lighting driving state information from the auxiliary lighting unit 50. In addition, the central controller 60 checks the state of the stored electric energy and the primary auxiliary lighting driving state information of the electrical storage facility 51 in consideration of the stored electrical energy information, and despite the driving of the primary auxiliary lighting 55. If it is determined that the illumination is not possible to the indoor illumination of a predetermined predetermined illuminance, the secondary auxiliary lighting 18 for irradiating light (visible light) through the electricity supplied to the room is additionally driven. In this case, even though the primary auxiliary lighting 55 is driven, the lighting cannot be performed by the predetermined illuminance of indoor illuminance when the power storage facility 51 does not have a sufficient amount of electrical energy or the primary. This means that the illumination value combined with sunlight and visible light irradiated from the auxiliary light does not reach the preset illuminance even though the auxiliary light is driven at maximum output.

2 is a flowchart illustrating a control method of a solar lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the light collector 11 collects the light of the sun (sunlight) and transmits the light to the light guide unit 12, and the light guide unit 12 transmits the light transmitted through the light collector 11 to the light diffuser 13. And transmits light to the desired room to be illuminated so as to be uniformly scattered and diffused into the room through the luminaire 14 (S201).

At this time, the central controller 60 receives the electrical energy information stored in the auxiliary lighting unit 50 by performing optical communication using the light guide unit 12 with the auxiliary lighting unit 50, and transmits an illumination control signal to the auxiliary lighting unit 50. (S203). Here, step 201 (S201) and step 203 (S203) may be performed simultaneously, or step 203 (S203) may be performed before step 201 (S201) is performed. In the present invention, it may be desirable to perform step 201 (S201) and step 203 (S203) at the same time.

Then the central control unit 60 detects the light scattered and diffused into the room to measure the illumination of the room (S205).

Thereafter, the central controller 60 compares the measured indoor illuminance with a predetermined predetermined illuminance (S207). At this time, if the measured indoor illuminance and the predetermined predetermined illuminance are the same, the central control unit 60 maintains the current state as it is to perform the operation of the indoor lighting using sunlight.

As a result of the comparison, when the measured indoor illuminance is higher than the predetermined predetermined illuminance, the central controller 60 operates the light blocker in consideration of the predetermined predetermined illuminance to block the light flowing into the room through the light guide 12. (S209). Alternatively, by adjusting the position of the light collector 11 for collecting sunlight, the amount of light of the sunlight to be collected may be adjusted.

However, if the measured indoor illuminance is lower than the predetermined predetermined illuminance, the central controller 60 checks the stored electric energy information periodically received by the optical communication using the light guide unit 12 (S211). The electrical energy information stored here represents information on electrical energy produced by at least one of the photovoltaic power generation 20, the wind power generation 30, and the hydro power generation 40 and stored in the power storage facility 51.

As a result of the check, it is determined whether electrical energy is stored in the electrical storage facility 51 to the extent that the electrical energy information stored can drive the primary auxiliary lighting 55 to a specific illuminance (S213).

As a result, when electrical energy is stored to drive the primary auxiliary light 55 to a specific illuminance, the central control unit 60 requests an illuminance control signal to drive the primary auxiliary light 55 to a specific illuminance. The transmission to the auxiliary lighting unit 50 (S215).

Accordingly, the auxiliary lighting unit 50 emits light to the light guide unit 12 by driving the primary auxiliary lighting 55 at a specific illuminance using the stored electrical energy (S217) and driving state of the primary auxiliary lighting 55. The information signal is transmitted to the central controller 60 in the form of optical communication (S221).

However, when the determination result that the electrical energy is stored to the extent that the primary auxiliary lighting 55 cannot be driven to a specific illuminance, the central controller 60 drives the primary auxiliary lighting 55 using the stored electrical energy. At the same time, the secondary auxiliary lighting 18 driven by using electricity introduced into the room is additionally driven to control the indoor illuminance to a predetermined constant illuminance (S219). In this case, when the stored electrical energy is discharged and there is no stored electrical energy, the control signal is not driven but only the secondary auxiliary lighting 18 is output. Here, the secondary auxiliary light 18 emits light (visible light) to a module (diffuser 13 or luminaire 14) that evenly diffuses and scatters light indoors.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (14)

In the solar lighting apparatus for transmitting the light of the sun collected through the condenser to the light guide, scattering and diffusing the light transmitted through the light guide in the room, and measuring the illuminance of the scattered and diffused light,
An auxiliary lighting unit for storing electric energy produced by using at least one power generating means, and emitting light (visible light) using the stored electric energy, and being driven at a specific illuminance in consideration of an illumination control signal; And
The light guide unit performs optical communication with the auxiliary lighting unit to receive the stored electric energy information and the driving state information of the primary auxiliary lighting, compares the measured illuminance with a predetermined predetermined illuminance, and compares the result. And a central control unit for transmitting the illumination control signal in consideration of the stored electric energy information.
The method of claim 1, wherein the power generation means,
Solar lighting apparatus, characterized in that at least one of solar, wind or hydropower means.
According to claim 1, wherein the auxiliary lighting unit,
A power storage facility for storing electrical energy produced using the at least one power generation means;
Primary auxiliary lighting for irradiating light of a specific illuminance to the light guide by the stored electrical energy; And
Optical communication with the central control unit through the light guide unit transmits the stored electric energy information and driving state information of the primary auxiliary light, receives the illumination control signal from the central control unit, and receives the primary assist with a specific illuminance corresponding thereto. Solar lighting apparatus comprising a charge and discharge control unit for controlling the lighting.
According to claim 3, The power storage equipment,
A solar lighting apparatus comprising a large capacity, short lifespan, a secondary battery having a long charge / discharge time, and a capacitor having a small capacity, long life, and a short charge / discharge time.
The method of claim 1, wherein the light collector,
A solar lighting device comprising a light tracking module for tracking and moving light of the sun and using power storage facilities as a driving power of the light tracking module.
According to claim 1, If the constant illuminance can not be maintained by the electrical energy stored in the auxiliary lighting unit in the secondary control lighting to operate by the electricity supplied to the room under the control of the central control unit to emit light further. Solar lighting apparatus comprising a.
The light blocking device of claim 1, wherein when the illuminance scattered and diffused in the room by the light of the sun condensed through the condenser is higher than the predetermined illuminance, the light blocker blocks the light scattered and diffused in the room under the control of the central controller. Solar lighting apparatus, characterized in that it further comprises.
The method of claim 1, wherein the light guide portion,
Solar lighting apparatus, characterized in that the optical fiber.
In the control method of the central control unit of the solar lighting apparatus for transmitting the light of the sun collected through the condenser to the light guide, and scattering and diffusing the light transmitted through the light guide in the room,
Measuring illuminance of the scattered and diffused light; And
Compare the measured light intensity with a predetermined predetermined illuminance, and block scattered and diffused light in the room according to the comparison result, or perform optical communication with the auxiliary light through the light guide to drive the auxiliary light to a specific illuminance. To control to be the room of the predetermined illuminance,
The auxiliary lighting unit stores electric energy produced using at least one power generating means, and emits light using the stored electric energy, but is driven by an illumination control signal. .
10. The method of claim 9, wherein the controlling to be a room of the predetermined illuminance includes:
As a result of the comparison, when the measured illuminance of the light is lower than a predetermined illuminance, illumination control is performed by performing optical communication using the light guide unit to emit light by driving primary auxiliary lighting using electric energy stored in the auxiliary lighting unit. Transmitting driving signals to the auxiliary lighting unit and receiving driving state information of the auxiliary lighting; And
As a result of the comparison, if the measured illuminance of the light is higher than a predetermined illuminance, the method of controlling a solar lighting apparatus comprising the step of blocking the light scattered and diffused in the room.
The method of claim 10, wherein the secondary illumination is driven by the electricity supplied to the room to emit light when the indoor illuminance cannot maintain the constant illuminance even when the electric energy stored in the auxiliary illumination unit is driven. The control method of the solar lighting apparatus further comprising the step of controlling to.
The method of claim 9, further comprising periodically receiving the stored electrical energy information by optical communication using the light guide unit.
The method of claim 9, wherein the light guide portion,
Control method of a solar lighting device, characterized in that the optical fiber.
10. The method of claim 9, further comprising the step of receiving, by the central controller, a driving state information signal indicating a driving state for each stage of the auxiliary light when the auxiliary light is driven by receiving an illumination control signal from the central control unit by optical communication using the light guide unit. Control method of a solar lighting device, characterized in that.

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