KR20130016778A - Day lighting device and hybrid lighting system using it - Google Patents

Abstract

PURPOSE: A sun light condensing device and a hybrid lighting system using the same are provided to maximize energy efficiency by using both the sun light condensing device and an artificial lighting device and maximizing a use of a natural lighting device. CONSTITUTION: A first condensing member(10) reflects incoming sun light to focal region. A second condensing member(20) is formed in a focal region of the first condensing member. The second condensing member converts reflected and condensed sun light from the first condensing member to similar parallel rays. A reflecting member traces and reflects the sun light. A optical transmission member(50) transmit converted similar parallel rays from the second condensing member. The optical transmission member includes at least one relay lens module which condenses similar parallel rays.

Description

Solar lighting device and hybrid lighting system using the same {Day Lighting Device And Hybrid Lighting System Using It}

The present invention relates to a solar light concentrating device, and more particularly, by forming a second light collecting member in a focus region of a first light collecting member, the second light condensing of sunlight collected in a focus region through the first light collecting member. It relates to a solar light concentrating device capable of supplying high-speed solar light to a room by converting it into straight parallel light such as laser light through the member.

In addition, the present invention relates to a hybrid lighting system capable of saving energy by using a combination of the natural light device and artificial light, and making the most of the natural light device.

The present invention can be applied to any solar condensing system that is formed on a building roof or an elevation of a building, or is formed as a stand-alone structure such as a street lamp and a colonnade.

Until now, research and development or commercialization of solar concentrating systems are mainly used for the fixed light system using light ducts and the system for condensing using sun-traced lenses (spherical lens or Fresnel lens).

In the case of the fixed mining system using the light duct, the light collecting efficiency of the solar light is lower than that of the solar tracking method, but there is an advantage that the light can be mined without having a great influence on the state of the sky (weather state). It is possible to mine only the ball or the partial piercing and has the advantage of high light collection efficiency.

It is difficult to simply compare the excellence of the two types of mining systems, and in view of these advantages and disadvantages, fixed mining systems are used for general interior lighting and solar tracking are used for indoor local lighting.

In particular, the sun-tracked natural light system is classified into the reflection mirror method (plane or curved reflector) and the lens method according to the condensing principle, and is classified into the reflection mirror method and the optical fiber method according to the light transmission method.

In the case of the reflection mirror method, it is advantageous for the long distance transmission by the solar transmission by the reflection mirror without a separate light collecting unit, but there is a problem that the size of the reflection mirror and the light transmission space must be sufficiently secured. In the case of the lens method, due to the optical transmission using the optical fiber Due to the limitation of the optical transmission distance (within 30m) and the economical efficiency of the optical fiber, there is a problem that the practicality falls.

In particular, the conventional solar condensing system has a low light flux and difficult to transmit light since the condensed sunlight has a common diffusivity, and a large loss of light occurs when changing directions in the transmission process, making it impossible to transmit sunlight to a long distance. There was.

SUMMARY OF THE INVENTION An object of the present invention is to provide a solar light concentrating device having high light transmission efficiency by converting concentrated solar light into high-parallel beams of high linearity such as laser light. .

In addition, the present invention provides a hybrid lighting system capable of maximizing energy efficiency by reducing energy consumption by using a combination of the natural light device and the artificial lighting device and maximizing the natural light device.

In order to achieve the above object, the solar light collecting apparatus according to the present invention is formed in a focusing region of a first condensing member and the first condensing member to reflect incident sunlight into a focus region, and is reflected from the first condensing member. And a second condensing member for converting the sunlight condensed in the focus region into high parallel beams of similar light and a light transmission member for transmitting the similar parallel light converted from the second condensing member, wherein the light transmission member is the pseudo parallel light. And at least one relay lens module for concentrating the similar parallel light to prevent the diffusion and loss.

The first condensing member may be formed of a concave reflection mirror or a Fresnel lens having a parabolic curved surface having a through hole at a center portion connected to the light transmitting member.

The second condensing member may be formed of a convex reflective mirror having a parabolic curved surface.

In addition, the first light collecting member is formed to be spaced apart vertically or horizontally, characterized in that it further comprises a reflecting member for injecting sunlight into the first light collecting member vertically or horizontally.

The relay lens module is characterized in that the next relay lens module is formed within the focal length (F) of the relay lens, or formed at the maximum distance (M) that the sunlight crossing through the focal region does not leave the neighboring relay lens. .

The relay lens module may include a socket coupled between the optical transmission member and a relay lens inserted into and mounted in the socket.

In addition, the relay lens is characterized in that consisting of a concave lens or a convex lens.

The relay lens is characterized in that the concave lens and the convex lens is configured in combination.

The optical transmission member may include a transmission unit for transmitting sunlight and a path changing unit for changing a path of the sunlight, wherein the transmission unit and the path changing unit are combined in at least two blocks.

And the transmission unit is characterized in that it comprises a cover portion that serves as an outer cover, a mirror-treated reflective coating formed on the inside of the cover portion and the hollow transmission unit for transmitting sunlight inside the reflective coating.

The path changing unit may include a coupling part to which the transmission unit is coupled and a path changing part formed of a prism or a reflection mirror for changing a path of sunlight.

On the other hand, the hybrid lighting system according to a preferred embodiment of the present invention is an artificial lighting device for artificially supplying light by the solar light concentrating device and the lighting apparatus described above and by the natural lighting and artificial lighting device by the natural light device Characterized in that it comprises a hybrid controller for controlling the artificial lighting mixed.

Here, the artificial lighting device is at least one luminaire which is installed to provide artificial lighting and the luminaire control unit for controlling the luminaire under the control of the hybrid controller and the solar power generation for supplying power to the luminaire It is characterized by including a wealth.

The photovoltaic unit includes a solar cell module that accumulates thermal energy from sunlight, a converter that converts thermal energy accumulated by the solar cell module into electrical energy, and a capacitor that stores the electrical energy converted by the converter. It features.

The hybrid controller may further include a memory for storing an illuminance sensor for measuring an illuminance in a room, a memory for storing a minimum reference illuminance value for optimum illuminance, and an illuminance value measured from the illuminance sensor is smaller than a minimum reference illuminance value stored in the memory. It characterized in that it comprises a hybrid control module for controlling to operate the artificial lighting device.

Here, the hybrid control module, when the illuminance value measured from the illuminance sensor is smaller than the minimum reference illuminance value stored in the memory, sets the operation of the luminaire in the illuminance step, and operates the luminaire in the minimum illuminance step. When the measured illuminance value is less than or equal to the minimum reference illuminance value, the process of operating the luminaire in the upper illuminance level is repeated until the minimum illuminance value is equal to or greater than the minimum illuminance value.

The hybrid control module may measure the illuminance value measured in the state where the luminaire is operated at a lower and lower illuminance level lower than the current illuminance level when the illuminance value measured by the illuminance sensor is higher than the maximum reference illuminance value stored in the memory. In the case of the illuminance value, the process of operating the lighting fixture in the next lower and lower illuminance step is repeated until the maximum reference illuminance value is less than, and the indoor illuminance is kept constant.

The present invention converts the concentrated solar light into parallel light of high luminous flux, such as a laser beam, and not only has high light transmission efficiency, but also has an excellent effect of transmitting sunlight without limitation of transmission distance.

In addition, by using the solar light concentrating device and artificial lighting device in combination, and using the natural light device to the maximum, it is possible to reduce energy consumption and maximize energy efficiency.

FIG. 1A is a conceptual diagram schematically showing a natural light device according to a preferred embodiment of the present invention, and FIG. 1B is a conceptual diagram further including a reflective member in FIG. 1A.
2 is a schematic diagram of solar transmission according to a preferred embodiment of the present invention.
3 is an exemplary view of applying a natural light system according to a preferred embodiment of the present invention.
FIG. 4 is an exploded perspective view of a vertical natural light system formed on an elevation of a building as shown in FIG. 3A.
FIG. 5 illustrates that two first light collecting members and two reflecting members of FIG. 4 are formed.
6A is a perspective view schematically illustrating a structure of a light transmission member according to a preferred embodiment of the present invention, FIG. 6B is an internal cross-sectional view, and FIG. 6C illustrates a coupling of a light transmission member composed of a unit.
Figure 7 shows a state in which the natural light device according to an embodiment of the present invention is installed on the building facade.
8 is a system configuration diagram schematically showing a hybrid lighting system according to a second embodiment of the present invention.
FIG. 9 illustrates a process of controlling artificial lighting by the hybrid controller according to the present invention. FIG. 9A illustrates a control process when the indoor illuminance is less than or equal to the minimum reference illuminance, and FIG. 9B illustrates a maximum reference illuminance. The control process in the above case is shown.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A is a conceptual view schematically showing a solar light collecting device according to a preferred embodiment of the present invention, FIG. 1B is a conceptual view further including a reflecting member in FIG. 1A, and FIG. 1C is a light collecting device according to FIG. 1B. It is a schematic perspective view.

1 and 2, the natural light emitting device according to the present invention is formed in a focusing part of the first light collecting member 10 and the first light collecting member to collect incident sunlight and is collected from the first light collecting member. It characterized in that it comprises a second light collecting member 20 for converting sunlight into high parallel luminous parallel light. Here, it may further include a reflecting member 30 for tracking and reflecting sunlight.

The first light collecting member 10 serves to focus the sunlight reflected from the reflecting member to a focal point.

To this end, the first light collecting member 10 may be formed as a concave reflection mirror having a parabolic curved surface, and has a through hole 110 for transmitting sunlight to a central portion that is vertically above the focal point.

In addition, the first light collecting member 10 may be configured as a flat Fresnel lens to concentrate sunlight to the second light collecting member 20.

Here, when the first light collecting member 10 is formed as a concave reflective mirror having a parabolic curved surface, the area occupied by the first light collecting member 10 is increased due to the parabolic curved shape, which may cause space limitation, manufacturing, and installation problems. However, when formed as a planar Fresnel lens as shown in Figure 2 can concentrate the sunlight without the above problem.

The second light collecting member 20 converts the sunlight collected from the first light collecting member 10 to the focal point into sunlight having a high luminous flux and enters the through hole 110.

Here, the second light collecting member 20 may be formed as a convex reflective mirror having a parabolic curved surface.

When the second light collecting member 20 is formed as a concave reflection mirror, the light collected by the first light collecting member passes through the focus and is reflected by the concave mirror to form parallel light, and the light collected in the space is collected at the focus. Reflections to form parallel light due to excessive heat and risk of fire as well as heat load on concave mirror surface.

The second condensing member is preferably formed of a convex reflecting mirror because it may affect.

In addition, a heat sink may be further formed on the rear surface of the convex reflection mirror for more efficient heat dissipation.

The solar light collecting apparatus according to the present invention has a structure in which a first light collecting member is mounted in a case and a second light collecting member is fixedly installed at a focus area on the front of the case, as shown in FIG. 1C, and penetrates the first light collecting member. The light transmission member is coupled through the hole.

And the reflecting member 30 is responsible for transmitting the sunlight to the first light collecting member 10 by reflecting the incident sunlight, and tracking the sun to deliver the maximum sunlight to the first light collecting member 10 This may be configured to enable.

To this end, the reflective member 30 may be configured to include a reflector for reflecting sunlight, a rotating part for rotating the reflector up and down, left and right, and a control unit for controlling the rotation of the rotating unit by tracking the sunlight.

3 is a schematic diagram of solar transmission.

Referring to FIG. 3, the sun and the earth have a 0.5 degree angle difference between the sun and the earth due to a difference in distance and size, and the first light collecting member receives sunlight incident from the sun due to the angle difference. 10) and the second solar light collected through the second light collecting member 20, although the high luminous flux of sunlight, but not ideally parallel parallel light has a form of similar parallel light of slightly diffused form.

After all, theoretically, due to the difference in the angle between the sun and the earth, the sunlight itself, which is incident from the sun, has a certain inclination and cannot be condensed into perfect parallel light.

Therefore, the light loss is generated by the sunlight diffused through the transmitting member while the pseudo parallel light collected through the second light collecting member 20 increases, and the longer the transmission distance, the higher the light loss. there is a problem.

In order to solve the above problems, in order to prevent the similar parallel light from being diffused and lost in the light transmission member, the relay lens may be configured to transmit the same parallel light again.

4 is a view schematically illustrating a solar light collecting device including a relay lens module in a transmission member according to the present invention, and FIG. 5 is a detailed configuration diagram of the relay lens of FIG. 4.

4 and 5, the pseudo parallel light collected through the second light collecting member 20 is diffused according to the transmission distance in the transmission member, and the diffused light is light lost as the transmission distance becomes longer. Therefore, the relay lens module 60 for concentrating and transmitting similar parallel light diffused in the light transmission member may be formed at regular intervals.

The relay lens module 60 may include a socket 610 formed between the light transmission members 50 and a relay lens 620 inserted into and mounted in the socket.

The relay lens 620 may be configured in such a way that the concave lens and the convex lens are combined as shown in FIG. 5 so as to concentrate the diffused light again.

In addition, the relay lens may be configured as a single concave lens or a convex lens, but when configured as a single concave lens, the focused light may be formed near the lens and the focused light may be diffused again. Since the relay lenses must be closely arranged, the number of relay lenses required increases, thereby increasing the installation cost and deteriorating the workability due to the installation of the relay lenses.

In addition, when the relay lens is composed of a single convex lens, the focus area of the light is longer than that of the concave lens, but light is transmitted in a state where the light density is low.

Therefore, when the concave lens and the convex lens are combined, the light passing through the concave lens toward the focal region becomes high-density high-beam light, and is incident on the convex lens and condenses to the focal region of the convex lens. The problem caused by the concave lens or convex lens can be solved at the same time.

The interval at which the relay lens module 60 is installed may be determined according to the location, size, and size of the light transmitting member in which the solar light collecting device is installed, and basically prevents the incoming similar sunlight from being lost by diffusion. It should be installed every interval that can be, and the installation interval of the relay lens module 60 may be installed at regular intervals according to the optical design, but may be installed at different intervals.

More specifically, when the next relay lens module is formed within the focal length F of the relay lens as shown in FIG. 5B, all of the sunlight incident on the next relay lens is incident on the next relay lens. No light loss occurs.

In order to improve the light transmission efficiency of the relay lens, an anti-reflective coating may be formed on the surface of the lens, and the light transmission efficiency may be selectively changed to 99.5%, 95%, etc. according to the surface coating method of the relay lens. It can be applied and the material of relay lens can also use various transparent materials such as BK7, Quartz, PMMA

In addition, when the sunlight crossing the focal region is formed at the maximum distance M that does not deviate from the neighboring relay lens, the solar light incident on the next relay lens is also incident on the next relay lens so that no light loss occurs. Do not.

As described above, the light may be introduced into the room while minimizing light loss through the light transmitting member 50 connected to the through hole of the second light collecting member 20 and having the relay lens.

Here, the light transmitting member 50 may be any member capable of transmitting sunlight such as an optical fiber, a light pipe, or a light duct.

Here, the light transmitting member 50 may be configured in a hollow form to supply the converted parallel light therein without loss, and light may be transmitted without losing air in the hollow internal space to the medium. In addition, the bent portion of the light transmission member may easily change the light transmission path through a reflection mirror or a prism.

The cross-sectional area of the second light collecting member 20 may be formed to be the same as or smaller than that of the through hole 110 and the light transmitting member 50. The cross-sectional area of the second light collecting member may vary in size according to the transmission distance of sunlight. Can be determined. The size of the cross-sectional area of the through hole and the light transmitting member may be determined in proportion to the cross-sectional area of the second light collecting member.

For example, if the transmission distance of sunlight is long, the light flux should be high, so that the cross-sectional area of the second condensing member may be small. If the transmission distance is short, the cross-sectional area of the second condensing member may be large.

6A is a perspective view schematically illustrating a structure of a light transmission member according to a preferred embodiment of the present invention, FIG. 6B is an internal cross-sectional view, and FIG. 6C illustrates a coupling of a light transmission member composed of a unit.

Referring to FIG. 6, the optical transmission member 50 according to the present invention may be divided into a transmission unit 510 and a path change unit 520.

The transmission unit 510 includes a cover part 511 serving as an outer cover, a mirror-treated reflective coating part 512 formed inside the cover part, and a hollow transmission part 513 through which sunlight is transmitted into the reflective coating part. It may be configured to include).

The path changing unit 520 may include a coupling part 521 to which the transmission unit is coupled to the outside and a path changing part 522 to change the path of sunlight therein.

Here, the coupling part may be coupled to the transfer unit by a screw coupling method, a socket coupling method, or the like, and the path changing unit may be a prism or a reflective mirror.

The transmission unit and the path change unit can be detachably detached to be arbitrarily combined in a block form according to the path of sunlight, and can be freely adjusted according to the direction of the transmission unit after coupling as shown in FIG. 6D.

The present invention is not limited to the optical transmission distance, unless there is a restriction on securing the visible distance such as airborne suspended substances or haze, so as well as a general building, as well as a complex structure of space or underground tunnel or subway station, underground parking lot as shown in FIG. It can be easily applied to the same underground facilities or power plants as shown in Figure 7b.

The solar light collecting device according to the present invention may be formed vertically or individually on the building facade, may be formed independently in the form of a pillar, a street lamp, a colonnade, or the like, and may be formed horizontally on a roof or a roof of a building. Can be.

Hereinafter, a hybrid lighting system using a natural light device according to another embodiment of the present invention will be described.

8 is a system configuration diagram schematically showing a hybrid lighting system according to a second embodiment of the present invention.

Referring to FIG. 8, the hybrid lighting system according to the present invention includes a solar light concentrating device 1, an artificial lighting device 2, and a hybrid control device 3 that controls the solar light concentrating device and the artificial light device by mixing them. It can be configured to include.

Here, since the solar light collecting apparatus 1 has been described in detail in the first embodiment, a detailed description thereof will be omitted.

The artificial lighting device 2 includes a lighting fixture 21 installed to provide artificial lighting, a lighting fixture controller 22 for controlling the operation of the lighting fixture, and a power supply 23 for supplying power to the lighting fixture. It can be configured to include.

The power supply unit 23 may be supplied from electric power by commercial power or photovoltaic power generation.

When the power supply unit 23 is supplied by photovoltaic power generation, a solar cell module installed on a roof or a roof of a building and a converter converting thermal energy accumulated through the solar cell module into electrical energy and a storage battery storing the converted energy. It may include.

The hybrid controller 3 controls the operation of the artificial lighting device according to the illuminance sensor 31 measuring the illuminance (light quantity) of the solar light supplied through the solar concentrator and the illuminance measured from the illuminance sensor. It may be configured to include a memory 32 for storing the illumination information required to operate the hybrid control unit 33 and the artificial lighting device.

More specifically, the minimum reference illuminance E _min and the maximum reference illuminance E _max , which require an artificial illumination device, are stored in advance in the memory 32, and the amount of light measured from the illuminance sensor 31 is the minimum reference illuminance. If it is greater than (E _min ), the hybrid control unit 3 is configured to operate the artificial lighting device when only the natural lighting through the natural light device 1 is used without the artificial lighting device being operated and the measured illuminance is less than or equal to the minimum reference illuminance. Activate 2).

If the measured illuminance after operating the artificial illuminator 2 is greater than the maximum reference illuminance E _max , the illumination of the artificial illuminator 2 is lowered or stopped, and the indoor illuminance is maintained only by the solar light concentrator. Let's do it. Here, the minimum reference illuminance E _min is defined as the maximum illuminance that does not require artificial illumination, and the maximum reference illuminance E _max is the minimum illuminance that needs to be lowered unnecessarily high after artificial illumination is activated. define.

The minimum reference illuminance E _min and the maximum reference illuminance E _max may be arbitrarily set or changed according to the purpose or time zone of the building.

Therefore, the illumination of the room is operated in the hybrid lighting system so as to be maintained between the minimum reference illumination E _min and the maximum reference illumination E _max .

Therefore, it is possible to minimize the energy consumption by mixing natural lighting and artificial lighting, and controlling the artificial lighting to operate only in the minimum range required for artificial lighting.

When the measured light amount is less than the reference light amount, the memory 32 divides and controls the lighting fixture 21 into a plurality of stages according to the illuminance, and controls the hybrid controller to operate only the minimum artificial light necessary for the reference light amount. can do.

9 illustrates a process in which the hybrid control unit 33 controls artificial lighting according to the present invention. FIG. 9A illustrates a control process when the indoor illuminance is less than or equal to the minimum reference illuminance, and FIG. 9B illustrates the maximum indoor illuminance. It shows the control process in the case of more than the standard illuminance.

Referring to FIG. 9A, the hybrid controller 33 determines whether artificial illumination is necessary because the illuminance value measured from the illuminance sensor is smaller than the minimum reference illuminance E _min .

When artificial lighting is needed, the hybrid control unit 33 operates the artificial lighting of the minimum illumination level. Here, the illuminance step may increase the illuminance step by step through the dimming control of the number of lights or the lighting of the lighting fixtures.

Subsequently, by measuring the illuminance value from the illuminance sensor 31 again, it is determined whether or not it is greater than or equal to the minimum reference illuminance (E _min ), and if it is above, maintains the current illuminance step, and if it is less than or equal to the minimum reference illuminance (E _min ) Activate artificial lighting in the next illumination stage.

The above-described process may be repeated until the minimum reference illuminance E _min or more is maintained, thereby keeping the indoor illuminance constant.

9B, the hybrid controller 33 determines whether the illuminance value measured from the illuminance sensor exceeds the maximum reference illuminance E _max when the artificial illumination is activated.

If the maximum reference illuminance (E _max ) is exceeded, it is necessary to lower the illuminance of the room so that the next lower illumination level is activated. If the maximum reference illuminance E _max is not exceeded, the illumination of the current stage is maintained.

Subsequently, after the sub-illumination stage is activated, the illuminance is measured again through the illuminance sensor, and if the still higher than the maximum reference illuminance (E _max ), the sub-illumination stage is repeated again.

If the illuminance of the illumination is measured in the lowest stage of illumination, when the maximum reference illuminance (E _max ) is exceeded, the operation of the artificial lighting device is stopped and the indoor illuminance is maintained only by the solar light collecting device.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (16)

A first condensing member reflecting incident sunlight into a focal region;
A second condensing member which is formed in a focus region of the first condensing member and converts sunlight reflected from the first condensing member and condensed in the focus region into high parallel luminous parallel light;
A light transmission member configured to transmit pseudo parallel light converted from the second light collecting member;
And the light transmitting member includes at least one relay lens module for concentrating the parallel light in order to prevent the parallel light from being diffused and lost.
The method of claim 1,
The first light collecting member is
And a concave reflection mirror or a Fresnel lens having a through hole in the center portion connected to the light transmitting member.
The method of claim 1,
The second light collecting member
Photovoltaic condensing device characterized in that formed of a parabolic reflective mirror.
The method of claim 1,
And a reflection member formed vertically or horizontally spaced apart from the first light collecting member and configured to inject sunlight into the first light collecting member vertically or horizontally.
The method of claim 1,
The relay lens module
A socket coupled between the optical transmission members;
And a relay lens inserted into and mounted in the socket.
The method of claim 1,
The relay lens module
The next relay lens module is formed within the focal length (F) of the relay lens, or the solar light collecting device, characterized in that the solar light crossing the focal region is formed at the maximum distance (M) does not leave the neighboring relay lens.
6. The method of claim 5,
The relay lens
Photoconcentrator comprising a concave lens or a convex lens.
6. The method of claim 5,
The relay lens
Solar light collecting device, characterized in that the concave lens and the convex lens is configured in combination.
The method of claim 1,
The optical transmission member
A transmission unit for transmitting sunlight;
A path changing unit for changing a path of the sunlight;
And the transmission unit and the path change unit are combined in at least two block types.
The method of claim 9,
The transmission unit
A cover part serving as an outer shell;
A mirror-treated reflective coating formed inside the cover;
And a hollow transmission unit through which the sunlight is transmitted inside the reflective coating unit.
The method of claim 9,
The rerouting unit
A coupling part to which the transmission unit is coupled;
And a path changing unit formed of a prism or a reflection mirror for changing a path of sunlight.
Claim 1 to 11 of any one of the solar light collecting device selected from;
An artificial lighting device for artificially supplying lighting by a lighting device;
And a hybrid controller for controlling the natural lighting by the solar light collecting device and the artificial lighting by the artificial lighting device.
13. The method of claim 12,
The artificial lighting device
At least one lighting device installed to provide artificial lighting;
A luminaire controller for controlling the luminaire according to the control of the hybrid controller;
Hybrid lighting system comprising a solar power unit for supplying power to the luminaire.
The method of claim 13,
The solar power generation unit
A solar cell module for accumulating thermal energy from sunlight;
A converter for converting thermal energy accumulated by the solar cell module into electrical energy;
And a capacitor for storing the electrical energy converted by the converter.
13. The method of claim 12,
The hybrid control device
An illuminance sensor measuring an illuminance of the room;
A memory for storing a minimum reference illuminance value for optimal illuminance;
And a hybrid control module configured to control the artificial lighting device to operate when the illuminance value measured by the illuminance sensor is smaller than the minimum reference illuminance value stored in the memory.
16. The method of claim 15,
The hybrid control module
When the illuminance value measured from the illuminance sensor is smaller than the minimum reference illuminance value stored in the memory
The operation of the luminaire is set in each step of illuminance, and when the illuminance value measured while the luminaire is operated at the minimum illuminance level is less than or equal to the minimum reference illuminance value, the process of operating the luminaire in the upper illuminance level is above the minimum reference illuminance value. Hybrid lighting system, characterized in that to keep a constant indoor illumination until repeated.

Images