KR102277647B1 - Lighting control apparatus cultivating plants - Google Patents

Abstract

The present invention relates to a light control device for plant cultivation having an improved light efficiency and an air conditioning function, and more particularly, it can be installed in a plant cultivation area to evenly and effectively transmit light to a plant cultivation area, air circulation action and carbon dioxide fertilization And, it relates to a light control device for plant cultivation having a function of improving light efficiency and air conditioning that can effectively perform temperature and humidity control functions.
According to the present invention, there is provided a light control device for plant cultivation having a function of improving light efficiency and air conditioning, comprising: a light control body formed of a light transmitting material; a light guide unit formed on the upper portion to collect external light and guide it into the light control body; a light leakage prevention unit formed on the light control body to prevent external leakage of light transmitted therein; and a light scattering unit formed at a lower portion in contact with the light leakage preventing unit to scatter the light transmitted into the light control body.

Description

Light control device for plant cultivation with improved light efficiency and air conditioning function {LIGHTING CONTROL APPARATUS CULTIVATING PLANTS}

The present invention relates to a light control device for plant cultivation having a function of improving light efficiency and air conditioning, and more particularly, it can be installed in a plant cultivation area to evenly and effectively transmit light to a plant cultivation area, air circulation action and carbon dioxide fertilization And, it relates to a light control device for plant cultivation having a function of improving light efficiency and air conditioning that can effectively perform temperature and humidity control functions.

In general, agricultural products including vegetables are mainly grown in the open field, but there is a disadvantage that cultivation is impossible in winter and requires a lot of land. Also, in recent years, as the safety issue of agricultural products has emerged, various research activities are being conducted along with interest in plant factories capable of producing pesticide-free and pollution-free agricultural products.

For example, as a technology related to a plant factory, a method of growing spinach using light quality in a closed plant factory system disclosed in Republic of Korea Patent Publication No. 10-1900643 has been proposed.

The above technology is applied to a large-scale plant factory system by facilitating the growth of spinach as well as energy saving through identification of the optimal light quality for the growth of spinach in a closed plant factory system so that high-quality spinach can be mass-produced.

However, since the aforementioned conventional closed plant factory system uses artificial light, the leaf area index increases compared to the open field according to plant growth, and overhumidity occurs due to densification inside the plant community. There is a problem that causes

And, unlike the method using natural light in the conventional cultivation system, the artificial light source supplies light in a Top-Down method, so there is sufficient light in the lower part of the upper layer (below the canopy of the plant) where the leaves of plants grow luxuriantly. There is a disadvantage in that growth imbalance occurs because it does not reach it.

Alternatively, the conventional cultivation system has disadvantages in that the flow of airflow is not smooth due to the dense planting of plants, resulting in growth deterioration and growth imbalance.

In addition, in the conventional cultivation system using artificial light, a method for preventing artificial light from leaking out of the cultivation space by arranging a reflector is used to solve the above problem, but the heat generated from the light source is not discharged, so the temperature inside the cultivation space is high , so there is still a limit where growth cannot be prevented.

Korean Patent No. 10-190064 "Cultivation method of spinach using light quality in a closed plant factory system" Korea Patent No. 10-1234015 "Lighting device for multi-layered badges" Korean Patent No. 10-1246396 "Optical transmission system with condensing device" (thesis 0001) “Growth of dropwort plants and their accumulation of bioactive compounds after exposure to UV lamp or LED irradiation”, SCI, (J Sci Food Agric 2014; 94: 197-204)

The present invention has been proposed in view of the above, and it is to provide a light control device for plant cultivation having a light efficiency improvement and air conditioning function, which can improve light utilization efficiency by evenly and effectively transmitting light to a plant cultivation area. There is this.

Another object of the present invention is to improve the light efficiency and improve the quality of plants by effectively performing the circulating action of air, fertilizing carbon dioxide, and temperature control and humidity control, thereby improving the light efficiency and controlling the light for plant cultivation having an air conditioning function. to provide the device.

In order to achieve the above object, according to the present invention, there is provided a light control device for plant cultivation having a function of improving light efficiency and air conditioning, comprising: a light control body formed of a light-transmitting material; a light guide unit formed on the upper portion to collect external light and guide it into the light control body; a light leakage prevention unit formed on the light control body to prevent external leakage of light transmitted therein; and a light scattering unit formed at a lower portion in contact with the light leakage preventing unit to scatter the light transmitted into the light control body.

The light control device for plant cultivation having a function of improving light efficiency and air conditioning according to the present invention may include an internal light reflection unit formed at the lower end of the light control body to reflect transmitted light to the outside.

The internal light reflecting unit may be formed of an internal light reflecting protrusion or a convex mirror having a reflective coating layer formed on a curved, arc-shaped surface.

In addition, the light control device for plant cultivation having an improved light efficiency and air conditioning function according to the present invention may include a utility supply line formed inside the light control body to supply the utility supplied from the outside to the plant cultivation area. .

The utility supply line includes: a moving line part formed in the vertical direction inside the light control body; an inlet formed at an upper portion of the light control body to communicate with the moving line; and a discharge part formed under the light control body to communicate with the moving line part.

On the other hand, the light control device for plant cultivation having a function of improving light efficiency and air conditioning according to the present invention is characterized in that it includes a light generating unit installed inside the light control body.

The light generating unit is installed in the lower portion of the UV light source for supplying light for sterilization and plant growth control; and a light control unit for controlling driving of the UV light source unit.

The light control body may be formed of a rod-shaped member made of a light-transmitting material, and the light guide part may be formed of a hemispherical condensing lens formed on the upper end of the light control body.

The light leakage preventing part is installed on the outer surface of the light control body to be spaced apart from the light inducing part, and a scattering prevention surface formed inside to prevent the outflow of light transmitted to the inside of the light control body; It may be composed of a planar member having an external light reflective surface formed on the outside to reflect the external light applied toward the outer surface to the plant growth region.

The light scattering unit may include a diffusely reflective surface member installed on the outer surface of the light control body and formed of a diffusely reflective material, or a scratch unit formed on the outer surface of the light control body.

According to the light control device for plant cultivation having a function of improving light efficiency and air conditioning according to the present invention, light can be evenly transmitted to the lower part of the upper layer where the leaves of plants grow thick, so the light use efficiency and the efficiency of plant cultivation can be improved. . In addition, since the light required for photosynthesis can be effectively supplied without excessive addition of an artificial light source, energy costs can be reduced, and there is an advantage in that it is possible to solve the adverse effects of plant growth due to heat generated due to the excessive installation of the artificial light source.

The light control device for plant cultivation having a light efficiency improvement and air conditioning function according to the present invention is further equipped with a utility supply line, so it is possible to stably perform carbon dioxide fertilization, thereby improving the efficiency and quality of plant cultivation. .

And, by using the utility supply line, cold air can be supplied to the plant growth area like in summer, heat can be supplied in winter, and dry air for humidity control can be easily supplied, so temperature control and humidity control can be effectively performed. there are advantages to

In addition, the utility supply line can circulate air even when a separate utility is not supplied, so it can solve the temperature-humidity imbalance in the vertical direction in the plant growth area, and it can secure ventilation to improve growth characteristics and It can improve the quality of plants.

In addition, the light control device for plant cultivation having a light efficiency improvement and air conditioning function according to the present invention can perform a sterilization action and an increase in functional components in the plant growth area using UV rays emitted through the light generator, and at harvest time Freshness retention time can be increased by applying light stress to plants.

1 is a schematic configuration diagram showing a light control device for plant cultivation having a function of improving light efficiency and air conditioning according to a first embodiment of the present invention;
2 is a view for explaining the operation of a light control device for plant cultivation having a function of improving light efficiency and air conditioning according to the first embodiment of the present invention;
3 is an exploded perspective view showing a light control device for plant cultivation having a function of improving light efficiency and air conditioning according to the first embodiment of the present invention in more detail;
4 is a schematic configuration diagram showing a light control device for plant cultivation having a function of improving light efficiency and air conditioning according to a second embodiment of the present invention;
5 is an exploded perspective view showing in more detail a light control device for plant cultivation having a function of improving light efficiency and air conditioning according to a second embodiment of the present invention;
6 is a schematic configuration diagram illustrating a light control device for plant cultivation having a function of improving light efficiency and air conditioning according to a third embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings 1 to 6, wherein the same reference numerals are given to the same components in FIGS. 1 to 6 to be described.

On the other hand, in each drawing, a detailed description of a configuration that can be easily recognized by a person skilled in the art from the general technique and an action and effect thereof will be simplified or omitted. In addition, since the present invention has the characteristics of a light control device for plant cultivation having a light efficiency improvement and an air conditioning function, the related parts will be shown and described, and the description of the remaining parts will be simplified or omitted.

1 is a schematic configuration diagram showing a light control device for plant cultivation having a light efficiency improvement and air conditioning function according to a first embodiment of the present invention, and FIG. 2 is a light efficiency improvement and air conditioning function according to the first embodiment of the present invention. 3 is an exploded perspective view showing the light control device for plant cultivation having a light efficiency improvement and air conditioning function according to the first embodiment of the present invention in more detail. Sections are enlarged cross-sections and surfaces of the indicated parts.

1 to 3, the light control device for plant cultivation having a function of improving light efficiency and air conditioning according to the first embodiment of the present invention is such that light can be effectively transmitted to the lower layer of the plant cultivation area, and the light control body (1) ), a light guide unit 2, a light leakage prevention unit 3, and a light scattering unit 4 are provided.

The light control body 1 is installed in the plant cultivation area and is a component that receives external light and supplies it evenly to the plant cultivation area, and is formed of a light-transmitting material such as glass, polycarbonate, acrylic, and the like.

In addition, the light control body 1 is formed of a substantially columnar rod-shaped member, and may also be formed of a polygonal rod-shaped member such as a triangle or a square, but is formed in a cylindrical shape in this embodiment.

The light guide unit 2 is a component formed on the upper part to collect external light and guide it into the light control body 1 , and is composed of a hemispherical light collecting lens formed on the upper end of the light control body 1 .

In addition to the form shown in FIG. 1 , the light induction unit 2 can be configured in various ways without any particular limitation in structure or shape, as long as it can collect external light and guide it to the inside of the light control body 1 .

The light leakage preventing unit 3 is a component for preventing the light transmitted to the inside of the light control body 1 from leaking to the outside. The light scattering unit continues by preventing the light moving inside the light control body from being scattered to the outside in a certain section. (4) It performs the function of inducing.

For example, the light leakage prevention unit 3 is installed on the outer surface of the light control body to be spaced apart from the light guide unit 2, from the point where the light is collected by the light guide unit 1 to the start point of the light scattering unit 3 It is formed by height (length).

The light leakage preventing unit 3 can be selected without any particular limitation as long as it is a means for blocking the light from being scattered to the outside, but in this embodiment, it is inside the light control body to prevent external leakage of the light transmitted to the inside. It is composed of a scattering prevention surface 31 formed and a planar member for preventing light leakage having an external light reflection surface 32 formed outside to reflect the external light applied to the light control body 1 to the plant growth region. Here, the planar member for preventing light leakage may be typically made of a silver foil film.

As described above, when a planar member for preventing light leakage is selected as the light leakage preventing unit 3 and attached to the outer surface of the light control body 1, the light scattering unit 4 while blocking the external leakage of the light moving inside the scattering prevention surface 31 ), and when external light is irradiated, the external light reflective surface 32 reflects it to the plant growth area, thereby minimizing the occurrence of shade.

The light scattering unit 4 scatters the light transmitted into the light control body 1 and supplies it to the plant growth region, and is formed in the lower portion in contact with the light leakage preventing unit 3 .

In addition, the light scattering unit 4 may be formed in various structures and shapes as long as it can scatter the light transmitted from the upper layer and emit it to the outside. For example, the tube scattering unit 4 may be formed of a diffusely reflective planar member in the form of a transparent film installed on the outer surface of the light control body 1 and formed of a diffusely reflective material, but in this embodiment, a scratch unit formed on the outer surface of the light control body It is composed of (42). Here, the scratch portion 42 is to form a scratch by scraping the outer surface of the light control body using a sharp tool, so that effective diffuse reflection is achieved.

On the other hand, in the light control device for plant cultivation having a light efficiency improvement and air conditioning function according to the first embodiment of the present invention, the light transmitted from the upper layer of the light control body 1 is emitted toward the plant growth area more effectively. A reflection unit 5 is constituted.

The internal light reflection unit 5 is disposed at the lower end to face the light moving through the light control body 1 to reflect the light and emit it toward the light scattering unit 4 .

In addition, the internal light reflecting unit 5 may be formed of an internal light reflecting protrusion in which a reflective coating layer is formed on the surface that is curved and formed in an arc shape. In this case, the reflective coating layer may be configured by applying a reflective film or a paint having reflective properties.

In addition, the internal light reflection unit 5 can be configured in a way that a convex mirror is installed.

On the other hand, the internal light reflection unit 5 can be configured in a way that it is integrally embedded in the interior of the light control body 1, but as shown in FIG. 3, the light control body 1 is independently manufactured as shown in FIG. It is constructed in such a way that it is joined to the bottom of the At this time, the internal light reflecting part 5 is formed with a fastening part 52 in which a fastening screw part is formed in the internal light reflecting body 51 .

The light control body 1 has an accommodating groove 15 having a shape corresponding to that of the internal light reflecting part 5 at the bottom thereof, and a fastening screw (not shown) to which the fastening part is fastened is formed in the accommodating groove 15 . has been

In addition, the light control body 1 may further include a fixing means (not shown) for maintaining a solidly fixed state in the state installed in the cultivation facility. For example, the fixing means may be configured in such a way that a fixing bracket is installed on the lower part of the light control body to be fixed to a cultivation facility or a cultivation place.

Hereinafter, the operation of the light control device for plant cultivation having the function of improving light efficiency and air conditioning according to the first embodiment of the present invention will be briefly described.

As shown in FIG. 2, light control for plant cultivation is formed in a way that a light guide part 2, a light leakage prevention part 3, a light scattering part 4, and an internal light reflection part 5 are formed in the light control body 1 After the device is manufactured, it is installed in the regular plate of the plant cultivation facility using the artificial light source (L) at a set interval or by inserting it into the installation hole formed in the regular plate.

In this state, when the light is irradiated to the light guide unit 2 by lighting of the artificial light source L composed of an LED module, etc., the artificial light is condensed by the action of a hemispherical condensing lens and then guided to the lower part of the light control body 1 is transmitted

In this way, the downwardly directed light is stably transmitted toward the light scattering unit 4 without being scattered to the outside by the light leakage preventing unit 2 attached to the outer surface of the light control body 1 . At this time, the external light reflective surface 32 of the light leakage prevention unit 2 reflects the incident light from the light emitted from the artificial light source L without passing through the light control body and supplies it to the plant growth area. (1) performs the function of reducing the shade that can be formed by.

Thereafter, the light transmitted to the light scattering unit 4 by the action of the light leakage prevention unit 2 is emitted toward the plant growth region by the scattering action of the scratch unit and is used for photosynthesis. At this time, the internal light reflection unit 5 refracts the light scattering unit 4 to emit downward incident light to the outside.

As described above, the light control device for plant cultivation having the function of improving light efficiency and air conditioning according to the first embodiment of the present invention can transmit light to the upper and lower part of the plant where the leaves of the plant grow lush, so photosynthesis without the addition of an artificial light source It is possible to effectively supply the necessary light. Accordingly, the efficiency of plant cultivation can be improved, the number of installed artificial light sources can be reduced, energy costs can be reduced, and the adverse effect of plant growth caused by heat that can occur due to excessive installation of artificial light sources can be prevented. there are advantages to

Hereinafter, another embodiment according to the present invention will be described, but detailed descriptions of components similar to those of the above-described first embodiment will be omitted, and components having differences will be mainly described. In addition, in the following other embodiments, as long as it is an employable structure among the components shown in the first embodiment or the components shown in different embodiments, the detailed description or drawings will be omitted as it may be selectively applied.

4 is a schematic configuration diagram showing a light control device for plant cultivation having a light efficiency improvement and air conditioning function according to a second embodiment of the present invention, and FIG. 5 is a light efficiency improvement and air conditioning function according to the second embodiment of the present invention. It is an exploded perspective view more specifically showing a light control device for plant cultivation with

4 and 5, the light control device for plant cultivation having a function of improving light efficiency and air conditioning according to a second embodiment of the present invention includes a light control body (1), a light induction unit (2), a light leakage prevention unit ( 3), a light scattering unit 4 and an internal light reflection unit 5 are provided, but a utility supply line 6 is further provided to effectively perform air circulation, carbon dioxide fertilization, temperature control, and humidity control. has been

The utility supply line 6 is a passage formed inside the light control body 1 to supply utilities (meaning carbon dioxide, hot air, cold air, etc.) supplied from the outside to the plant cultivation area. The moving line part 61 formed in the vertical direction, the inlet part 62 formed in the upper part to communicate with the moving line part 61, and the discharge part 63 formed in the lower part to communicate with the moving line part 61. ) is composed of

It is preferable that a connection nozzle (not shown) is installed in the inlet part 62 so that a pipe or a hose is connected. A supply line (not shown) of air supplied from a blower or an air conditioner or the like or a supply line (not shown) for supplying carbon dioxide may be connected to the connection nozzle.

The discharge unit 63 is formed of a plurality of discharge holes formed along the periphery of the light control body (1).

In addition, the light control body 1 is formed with a receiving groove 15 having a shape corresponding to the internal light reflecting unit 5 at the bottom, and the depth of the receiving groove 15 is the internal light reflecting unit 5 . It is recessed so that the separation space d is provided in the installed state. Here, the separation space (d) communicates with the moving line unit 61 and communicates with the discharge hole configured as the discharge unit 63 to perform a function of a flow path to eject carbon dioxide and the like.

As described above, the light control device for plant cultivation having a function of improving light efficiency and air conditioning according to the second embodiment of the present invention transmits light not only to the upper part where the leaves of plants grow thickly, but also to the lower part, as in the first embodiment. At the same time, since the utility supply line 6 is further provided, the efficiency of plant cultivation and the quality of the plants produced can be further improved.

For example, when fertilization of carbon dioxide is required, when a carbon dioxide supply line is connected to the inlet 62 , the carbon dioxide moves through the moving line 61 and the outlet 63 , and is ejected in turn while moving from the lower part to the upper part. By supplying carbon dioxide to the back of the leaf, photosynthesis is maximized, so the growth characteristics of plants can be improved.

And, even when it is desired to supply cold air to the plant growth area for cooling in summer, to supply warmth in winter, or to supply dry or moist air for humidity control, the utility ( When the supply line (warm air, cold air, dry air) is connected, it moves and ejects through the moving line unit 61 and the discharge unit 63, and then moves from the lower part to the upper part, so that the temperature control and humidity control function can be effectively performed. .

In addition, the utility supply line 6 forms a path for air circulation leading to the inlet 62 , the moving line 61 , and the outlet 63 even when a separate utility is not supplied. Through the flow, it is possible to solve the temperature-humidity imbalance in the vertical direction in the plant growth area, and it is possible to secure ventilation, thereby improving the growth characteristics and improving the quality of plants.

6 is a schematic configuration diagram showing a light control device for plant cultivation having a function of improving light efficiency and air conditioning according to a third embodiment of the present invention.

Referring to Figure 6, the light control device for plant cultivation having a function of improving light efficiency and air conditioning according to a second embodiment of the present invention includes a light induction unit (2), a light leakage prevention unit (3) in a light control body (1), A light scattering unit (4), an internal light reflecting unit (5) and a utility supply line (6) are provided to supply power to the light generating unit (7) and the light generating unit installed inside the light control body (1) A power supply unit (not shown) for the purpose is further configured.

The light generating unit 7 includes a UV light source unit 71 installed at the lower portion to supply light for sterilization and control of plant growth, and a light control unit 72 for controlling the driving of the UV light source unit 71. It is built into the internal light reflection part 5 as a thing.

The UV light source unit 71 is formed of a UV LED module having a diffusion lens. For example, the UV LED module may be composed of a UVA or UVB LED module emitting UVB light in a wavelength range of 280 nm to 320 nm or UVA light in a wavelength range of 320 nm to 400 nm to induce plant stress.

The light control unit 72 is a configuration that performs a control operation so that lighting is made at a desired time as well as on/off operation of the UV light source unit. Power supplied to the UV light source unit according to a signal input through an input unit (not shown) A microcomputer (not shown) or a switching circuit (not shown) that regulates the flow is provided.

In addition, the input unit may be provided with a time input unit (not shown) composed of an input button or a touch panel for inputting the lighting time of the UV light source unit, and an illuminance sensor (not shown) capable of detecting contrast.

The power supply may be composed of a commercial power supply that supplies commercial power, a DC power supply that receives commercial power and adjusts it to have specific voltage and current values, or a battery.

The light control device for plant cultivation having a light efficiency improvement and air conditioning function according to a modification of the second embodiment of the present invention described above uses UV rays emitted through the light generator 71 to sterilize and function in the plant growth area. Ingredient increase can be carried out and the freshness retention time can be increased by applying light stress to plants at harvest time.

The synergism of the above functional ingredients and freshness is artificially applied to plants by irradiating UV rays for about 1 hour after the start of the light/dark season, which is the time of sunset and sunrise, using the light generator 71 at the time of harvest of the plant This can be done in an approved way. As such, when a plant is subjected to light stress, the plant undergoes secondary metabolism for survival, and functional components in the plant are accumulated. In addition, it closes the stomata performing photosynthesis, thereby reducing the amount of evaporation of water and increasing the freshness retention time of harvested plants.

Although the configuration and operation of a light control device for plant cultivation having an improved light efficiency and an air conditioning function according to an embodiment of the present invention described above has been described, this is an example, and those of ordinary skill in the art It will be understood that substitutions and modifications may be made to some of the above-described embodiments without departing from the spirit.

Therefore, it should be understood that the protection scope of the present invention extends to the invention described in the claims and their equivalents.

1: Light control body
2: light induction part
3: Light leakage prevention unit
4: Light scattering unit
5: Internal light reflection part
6: Utility supply line
61: moving line part
62: inlet
63: discharge part
7: Light generator
71: UV light source unit
72: light control unit

Claims (10)

In the light control device for plant cultivation,
a light control body formed of a light-transmitting material; a light guide unit formed on the upper portion to collect external light and guide it into the light control body; a light leakage prevention unit formed on the light control body to prevent external leakage of light transmitted therein; and a light scattering unit formed at a lower portion in contact with the light leakage preventing unit to scatter the light transmitted into the light control body. an internal light reflection unit formed at a lower end of the light control body to reflect transmitted light to the outside; and a utility supply line formed inside the light control body to supply the utility supplied from the outside to the plant cultivation area,
The light control body is formed of a rod-shaped member by a light-transmitting material,
The light guide part is composed of a hemispherical condensing lens formed on the upper end of the light control body,
The light leakage preventing part is installed on the outer surface of the light control body to be spaced apart from the light inducing part, and a scattering preventing surface formed inside to prevent external leakage of the light transmitted to the inside of the light control body; A light control device for plant cultivation having a light efficiency improvement and air conditioning function, characterized in that it is composed of a planar member having an external light reflective surface formed on the outside to reflect external light applied toward the outer surface to the plant growth region.
delete According to claim 1,
The internal light reflection part is curved in an arc shape, and a light control device for plant cultivation having a light efficiency improvement and air conditioning function, characterized in that it is composed of an internal light reflection protrusion or a convex mirror having a reflective coating layer formed on the surface thereof.
delete According to claim 1,
The utility supply line is
a moving line part formed in the vertical direction inside the light control body;
an inlet formed at an upper portion of the light control body to communicate with the moving line; and
and a discharge unit formed at a lower portion of the light control body to communicate with the moving line unit.
According to claim 1,
A light control device for plant cultivation having a function of improving light efficiency and air conditioning, characterized in that it comprises a light generator installed inside the light control body.
7. The method of claim 6,
The light generating unit is installed in the lower portion of the UV light source for supplying light for sterilization and plant growth control; and
A light control device for plant cultivation having a function of improving light efficiency and air conditioning, characterized in that it comprises a light control unit for controlling the driving of the UV light source unit.
delete delete According to claim 1,
The light scattering unit is provided on the outer surface of the light control body and is formed of a diffusely reflective surface member formed of a diffusely reflective material, or a scratch unit formed on the outer surface of the light control body. Light control for plant cultivation having a function of improving light efficiency and air conditioning Device.

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