KR101904676B1 - Energy independent container type cultivation apparatus utilizing artificial light source - Google Patents

Abstract

Disclosed is an energy-independent container type cultivation apparatus using a pink light-emitting device (LED) light source. According to one aspect of the present invention, the energy-independent container type cultivation apparatus a body provided in a container form; a cultivation part provided in the body and having at least one cultivation unit for cultivating crops arranged in layers; a solar photovoltaic panel provided on an upper surface of the body for converting solar energy into electrical energy; an illumination device for illuminating artificial light to crops cultivated in the cultivation unit using electric energy converted by the solar photovoltaic panel; at least one condensing plate provided on an outer surface of the body and having a concave curved surface to condense natural light; an optical fiber member for transmitting the natural light condensed by the condensing plate to the cultivation unit; and an auxiliary illumination device for irradiating the cultivated crop with natural light transmitted through the optical fiber member.

Description

TECHNICAL FIELD [0001] The present invention relates to an energy-independent container-type cultivation apparatus using an artificial light source,

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a cultivation apparatus for cultivating crops, and more particularly, to a container type cultivation apparatus using an artificial light source.

In general, plant factory based on artificial photosynthesis is a fusion or systematization of agricultural-IT-energy or agriculture-IT-biotechnology, which not only expects to develop high-value future industry Is a research field that attracts attention in terms of solving the global problems of the global village.

The plant is a system that automatically produces plants by artificially controlling and supplying light, temperature, humidity, CO ₂ concentration, culture liquid, etc. in a production facility where vegetables and functional plants are the main cultivated crops. It is a future type industry that can plan and produce pollution-free crops without relying on the external environment by fusion of technologies such as bio.

Recently, it has been actively piloted by the government at the government level and has been running pilot projects centering on some local governments. The scale of the project is increasing every year, but there are many barriers to overcome in order to reach the mass production stage.

In other words, the light irradiation at 440 nm and 680 nm, which are the core wavelengths for promoting photosynthesis, mainly uses LED light near 450/650 nm, A fluorescent lamp or the like has been used for the formation of the optical environment necessary for the formation of the target component.

However, plant factories using LED and fluorescent lamps are consuming a lot of electricity to maintain the cultivation environment. In order to enhance the market competitiveness by expanding the production scale, the plant cost per kW / m ² or more per unit cultivation area At least, in order to secure the profitability of the plant, the cost of electricity should be reduced to less than 1/3 of the total production cost.

Therefore, the development of cost-effective, high-efficiency and innovative light source technology optimized for plant growth is an essential precondition for the development and leap of artificial photosynthesis-based plant factories.

Among the crops that can be grown in plant factories, ginseng is a root plant, which grows in the shade. Therefore, it is cultivated in a field where shrubs of trees around the house or around the house are grown, or artificial shade is made by covering the shade net. Such a cultivation method may adversely affect the growth of ginseng due to environmental conditions such as typhoons, rainy and floods, and sunlight may be caused by strong ultraviolet rays in summer. There is a need for measures to exclude such environmental constraints and standard cultivation of crops without any influence from surrounding environment.

Publication No. 10-2004-0011747 (published Feb. 11, 2004)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a plant plant for artificial photosynthesis based on photosynthesis, which can simultaneously irradiate a wavelength of 440 nm and a wavelength of 680 nm, The object of the present invention is to provide a pink LED light source for artificial photosynthesis of plants capable of reducing power consumption.

The present invention also provides an energy-independent container-type cultivation apparatus capable of efficiently and economically growing crops such as root plants such as ginseng.

The present invention also provides an energy-independent container-type cultivation apparatus capable of collecting natural light efficiently by using a light-condensing plate and utilizing the collected natural light to cultivate crops.

The present invention also provides an energy-independent container-type cultivation apparatus capable of uniformly controlling cultivation conditions such as natural light dimming for crops cultivated for each layer.

The present invention also provides an energy-independent container-type cultivation apparatus capable of economically preventing fungi from roots of crops using ultraviolet rays of natural light.

An energy-independent container-type cultivation apparatus according to one aspect of the present invention includes: a body provided in a container form; A growing section provided in the body and in which at least one cultivation unit for growing crops is arranged in layers; A solar photovoltaic panel provided on an upper surface of the body for converting solar energy into electrical energy; An illumination device for illuminating artificial light with crops cultivated in the cultivation unit using electric energy converted by the photovoltaic panel; At least one condensing plate provided on an outer surface of the body and having a concave curved surface to condense natural light; An optical fiber member for transmitting the natural light condensed by the light condensing plate to the cultivation unit; And an auxiliary lighting device for irradiating the cultivated crop with natural light transmitted through the optical fiber member.

The illumination device may include: a pink LED light source that simultaneously illuminates blue light and red light.

The above-mentioned pink LED light source may be applied with a red fluorescent material which generates light corresponding to a wavelength of 600 to 700 nm to a blue LED light source.

The red fluorescent material _{M 2 Si 5 N 8: Eu} 2 + (M = Ca, Sr, Ba), CaAlSiN 3: Eu 2 +, 6MgO · As 2 O 5: Mn 4+, 3.5MgO · 0.5MgF 2 · GeO ₂ : Mn ^{4 +} .

The pink LED light source can simultaneously provide blue light corresponding to a wavelength of 440 nm and red light corresponding to a wavelength of 680 nm.

The illumination device comprising: a white LED providing white light; And a red LED that provides red light.

The illumination device may include: an artificial LED light source that simultaneously illuminates the blue light and the yellow light.

The cultivation unit includes: a re-battle; A support member inserted into a hole formed in the re-battle to support the crop; And a supply unit provided at a lower portion of the re-battle to supply water and nutrients to the root portion of the crop.

The auxiliary illumination device may irradiate the crop with natural light transmitted through the optical fiber member at an upper portion of the re-battle.

The energy-independent container-type cultivation apparatus may further include an ultraviolet ray generator provided at a lower portion of the re-battle, and irradiating ultraviolet rays to a root portion of the crop to prevent fungi from roots of the crop.

The energy-independent container-type cultivation apparatus may further include an optical distributor for distributing natural light condensed by the condenser to ultraviolet light and non-ultraviolet light.

Wherein the optical fiber member comprises: a first optical fiber tube for transmitting non-ultraviolet rays distributed by the optical distributor to the auxiliary illumination device; And a second optical fiber tube for transmitting ultraviolet rays distributed by the optical distributor to the ultraviolet ray generating device.

The ultraviolet ray generator includes an ultraviolet ray irradiator for irradiating ultraviolet rays transmitted through the second optical fiber tube to a root portion of the crop; A measuring unit for measuring an amount of ultraviolet light transmitted through the second optical fiber tube; And an ultraviolet ray generator for generating ultraviolet light according to the amount of ultraviolet light and irradiating ultraviolet light to the root of the crop.

The optical distributor may include a beam splitter that transmits any one of ultraviolet and non-ultraviolet rays of the natural light and reflects the other.

The first optical fiber tube and the second optical fiber tube may include at least one optical coupler for distributing the natural light so as to transmit uniform natural light to a plurality of layers of the cultivation unit.

Wherein the energy-assisting container-type cultivation apparatus includes a plurality of thermoelectric elements provided along a circumferential direction of the light-collecting plate, and generates an electric signal according to a temperature difference between the plurality of thermoelements; And a driving unit for adjusting the direction of the light-condensing plate according to an electrical signal generated by the sensing unit.

The sensing unit may include: a first pair of thermoelectric elements provided on both sides of the condenser plate along a first direction; And a second pair of thermoelectric elements provided on both sides of the condenser plate along a second direction perpendicular to the first direction, wherein the driving unit controls the condenser plate in accordance with the temperature difference of the first thermoelectric- A first driving device which rotates in one direction; And a second driving device for rotating the light-condensing plate in the second direction according to a temperature difference of the pair of the second thermoelectric elements.

According to the embodiment of the present invention, since a wavelength in the range of 440 nm and a wavelength in the range of 780 nm, which are two wavelengths necessary for plant photosynthesis, can be simultaneously irradiated from one light source, the power consumption of the plant can be remarkably reduced, It is effective.

INDUSTRIAL APPLICABILITY According to an embodiment of the present invention, an energy-independent container type cultivation apparatus capable of efficiently and economically cultivating crops such as root plants such as ginseng is provided.

In addition, according to the embodiment of the present invention, an energy-independent container-type cultivation apparatus capable of efficiently collecting natural light by using a light-condensing plate and utilizing the collected natural light for crop cultivation is provided.

In addition, according to the embodiment of the present invention, an energy-independent container-type cultivation apparatus capable of uniformly controlling cultivation conditions such as natural light dimming for crops cultivated by each layer is provided.

In addition, according to the embodiment of the present invention, there is provided an energy-independent container-type cultivation apparatus which can economically prevent fungi from roots of a crop using ultraviolet rays of natural light.

1 is a perspective view of an energy-independent container-type cultivation apparatus according to an embodiment of the present invention.
2 is a cross-sectional view of an energy-independent container-type cultivation apparatus according to an embodiment of the present invention.
3 is a cross-sectional view of a light-collecting plate, an optical distributor, and an optical fiber member constituting an energy-independent container-type cultivation apparatus according to an embodiment of the present invention.
4 is a cross-sectional view of a cultivation unit constituting an energy-independent container type cultivation apparatus according to an embodiment of the present invention.
5 is a view illustrating a configuration of a pink LED light source for artificial photosynthesis of plants according to an embodiment of the present invention.
6A and 6B are diagrams showing two wavelengths irradiated from a pink LED light source for artificial photosynthesis of a plant according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating color coordinates of a pink LED light source for artificial photosynthesis of a plant according to an embodiment of the present invention.
8 is an image of a light emitted from a pink LED light source according to an exemplary embodiment of the present invention.
9 is a red fluorescent material M ₂ Si ₅ N _8: a diagram showing an emission wavelength of Eu ^{2 +.}
Figure 10 is the red phosphor CaAlSiN _3: a diagram showing an emission wavelength of Eu ^{2 +.}
11 is a view showing the emission wavelength of the red fluorescent substance 6MgO · As ₂ O ₅ : Mn ^{4 +} .
12 is a red fluorescent substance 3.5MgO · 0.5MgF ₂ · GeO _2: a diagram showing an emission wavelength of Mn ^{+ 4.}
13 is a configuration diagram of an ultraviolet ray generator constituting an energy-standing container type cultivation apparatus according to an embodiment of the present invention.
FIG. 14 is a sectional view of a condenser plate constituting an energy-independent container-type cultivation apparatus according to another embodiment of the present invention.
15 is a plan view of a condenser plate constituting an energy-independent container-type cultivation apparatus according to another embodiment of the present invention.
16 is a cross-sectional view illustrating an operation state of a light-condensing plate constituting an energy-assisting container-type cultivating apparatus according to another embodiment of the present invention.

Other advantages and features of the present invention and methods of achieving them will be apparent by referring to the embodiments described hereinafter in detail with reference to the accompanying drawings. All terms used herein have the same meaning as commonly accepted in the art to which this invention belongs. A general description of known configurations may be omitted so as not to obscure the gist of the present invention. In the drawings of the present invention, the same reference numerals are used as many as possible for the same or corresponding configurations. To facilitate understanding of the present invention, some configurations in the figures may be shown somewhat exaggerated or reduced.

1 is a perspective view of an energy-independent container-type cultivation apparatus according to an embodiment of the present invention. 2 is a cross-sectional view of an energy-independent container-type cultivation apparatus according to an embodiment of the present invention.

1 and 2, an energy-independent container-type cultivation apparatus 100 according to an embodiment of the present invention includes a body 110, a cultivation unit 120, a solar power generation plate 130, a condenser plate 140, (150) and optical fiber members (170, 180).

The energy-independent container-type cultivation apparatus 100 according to the present embodiment is provided to cultivate crops such as root plants such as ginseng. The body 110 is provided in the form of a container in a hexahedron so as to exclude environmental influences such as season, ambient temperature, weather conditions, typhoon, rainy season, etc. and to allow the crop to grow constantly regardless of the surrounding environment.

In one embodiment, the body 110 may have a sealable interior space. The solar cell module 130, the condenser plate 140, the optical distributor 150 and the optical fiber members 170 and 180 are provided in the inner space of the body 110. Although not shown, the body 110 may be provided with an entrance for entering and exiting the internal space, and a ventilation device for ventilating the internal space.

The growing unit 120 is arranged in layers with at least one cultivation unit 122, 124, 126, 128 for cultivating crops. 2 shows a structure in which the cultivation units 122, 124, 126 and 128 are laminated in four layers, but the number of layers in the cultivation unit 120 may be provided in a plurality of layers other than one or four layers Do.

The photovoltaic power generation board 130 may be provided on the upper surface of the body 110 for efficient power generation by converting solar energy into electrical energy for cultivating the crop so that the crop can be cultivated in an energy independent manner.

The electric energy converted by the solar power generation plate 130 is supplied to the cultivation units 122, 124, 126 and 128 to be used for the purpose of growing crops such as lighting or to be supplied to a charging device It can be stored.

The light collecting plate 140 is provided on the outer surface of the body 110 for collecting natural light and directing the natural light to crops for cultivation of crops. The light collecting plate 140 has a concave curved surface directed downward to collect natural light. The inner surface of the light collecting plate 140 may be provided with a highly reflective material so that natural light can be reflected and effectively introduced into the optical fiber.

In the embodiment of FIG. 1, four condenser plates 140 are provided at four corners of the upper surface of the body 110 so as not to interfere with the photovoltaic plate 130, but the condenser plate 140 may have one or four As shown in FIG.

The light collecting plate 140 may be arranged to face upward for efficient collection of natural light. A light transmitting plate 142 may be installed on the upper opening of the light condensing plate 140 so that rainwater or foreign matter may not flow into the light condensing plate 140. Further, means such as a lens for condensing light may be provided at the upper opening of the light condensing plate 140. The natural light condensed by the condenser 140 is transmitted to the cultivation units 122, 124, 126 and 128 through the optical distributor 150 and the optical fiber members 170 and 180.

3 is a cross-sectional view of a light-collecting plate, an optical distributor, and an optical fiber member constituting an energy-independent container-type cultivation apparatus according to an embodiment of the present invention. 1 to 3, the natural light condensed by the condenser 140 is transmitted to the optical distributor 150 through the optical fiber 160 connected to the center of the condenser 140.

The optical distributor 150 distributes the natural light L provided at the end of the optical fiber 160 to the ultraviolet light L2 and the non-ultraviolet light L1 through the optical fiber 160. In one embodiment, the optical distributor 150 includes a beam splitter 152 that transmits any one of the ultraviolet light L2 and the non-ultraviolet light L1 of the natural light L transmitted through the optical fiber 160, ). ≪ / RTI >

3, the beam splitter 152 is configured to transmit the ultraviolet light L2 of the natural light L and reflect the non-ultraviolet light L1 such as visible light. However, the beam splitter 152 may be configured to transmit non- . Alternatively, the optical distributor 150 can be used not only as the beam splitter 152 but also as a device capable of separating light into ultraviolet rays and non-ultraviolet rays, without any particular limitation.

In one embodiment, the optical fiber members 170 and 180 may include a first optical fiber tube 170 and a second optical fiber tube 180 that are branched from the optical distributor 150. The first optical fiber tube 170 transmits the non-ultraviolet ray L1 distributed by the optical distributor 150 to the growth units 122, 124, 126, The second optical fiber tube 180 transmits ultraviolet rays L2 distributed by the optical distributor 150 to the cultivation units 122, 124, 126, and 128.

The first optical fiber tube 170 and the second optical fiber tube 180 are configured such that a uniform amount of light is supplied to each of the stacked growth units 122, 124, 126, 128 by means of an optical coupler .

In one example, (n-1) optical couplers may be provided when n (n is an integer greater than or equal to 2) layers of layered units 122, 124, 126, 128 are stacked, Natural light of 1 / n can be supplied to the cultivation units 122, 124, 126, and 128 for each layer by branching natural light to 1: (nk) (k is an order of the optical couplers).

In another embodiment, in the case where natural light condensed by each condenser plate 140 is transmitted to a plurality of layers of different layers using a plurality of condenser plates 140, The optocoupler can be omitted.

The non-ultraviolet ray L1 transmitted to the cultivation unit 122, 124, 126, 128 through the first optical fiber pipe 170 can be utilized for providing auxiliary illumination to crops. Ultraviolet rays L2 transmitted to the cultivation units 122, 124, 126 and 128 through the second optical fiber pipe 180 can be used to sterilize the roots of the crops to prevent fungi from spreading on the roots of the crops .

4 is a cross-sectional view of a cultivation unit constituting an energy-independent container type cultivation apparatus according to an embodiment of the present invention. 1 to 4, the cultivation unit 122 may include a re-battle 122a, a support member 122b, a supply part 122c, and a drain part 122d for hydroponic cultivation.

The re-battle 122a may be in the form of a plate. As an example, the re-battle 122a may be provided as a plate member such as styrofoam. In the re-battle 122a, the holes penetrate in the longitudinal direction and the transverse direction at predetermined intervals.

The support member 122b can be inserted into the hole formed in the re-battle 122a to support the stem portion of the crop 1. [ In one example, the support member 122b may be provided with a member such as a sponge.

The supply part 122c is provided below the re-battle 122a and supplies water and nutrients through piping (not shown) by means of a pump or the like to spray upward through the nozzles to supply the roots 12 ) Can be supplied with water and nutrients.

The drainage section 122d is provided at the bottom of the cultivation unit 122 for recovering water and nutrients to be dropped after being supplied to the root 12 portion of the crop 1. Water and nutrients recovered by the drainage section 122d are transferred to the supply tank and circulated, thereby reducing the amount of water and nutrients used thereby reducing the cultivation cost.

Above the cultivation unit 122 is provided an illumination device 132 for illuminating light on the stem and leaf parts of the crop 1 being cultivated in the cultivation unit 122. The illumination device 132 can illuminate the crop 1 with artificial light using the electric energy converted by the solar power generation plate 130. [ In one embodiment, the illumination device 132 may be provided as a surface emitting device such as a light emitting diode (LED).

According to one embodiment of the present invention, the illumination device 132 may include a pink LED light source that simultaneously illuminates the purple light and the red light. The details of the pink LED light source will be described later.

According to another embodiment of the present invention, the illumination device 132 may include a white LED providing white light and a red LED providing red light. In this embodiment, the white LED and the red LED are arranged adjacent to each other so that white light and red light can be simultaneously irradiated to the crop. Here, the red light may have a wavelength of 660 nm, but is not limited thereto.

Above the re-battle 122a is provided an auxiliary illumination device 172 for providing auxiliary light of the appropriate light to the stem and leaf portions of the crop 1. Non-ultraviolet rays transmitted to the auxiliary illumination device 172 through the first optical fiber pipe 170 are supplied to the crop 1 through the light transmitting window 174. [

In one embodiment, the illumination device 132 may be provided to adjust the amount of illumination light according to the amount of natural light provided by the auxiliary illumination device 172. For this purpose, a measuring device (not shown) for measuring the amount of non-ultraviolet light transmitted to the auxiliary illuminator 172 may be provided, and the measured non-ultraviolet light amount may be compared with a reference value to determine the difference between the reference value and the non- The brightness of the illumination device 132 can be adjusted according to the value.

When the crop 1 is irradiated with intense ultraviolet light of natural light, the leaves of the crop 1 burn and the photosynthesis and the like can not be smoothly performed, which may adversely affect the growth of the crop 1. However, , Only the non-ultraviolet rays excluding the ultraviolet rays are supplied to the crop 1 by the optical distributor 150 so that the sunlight phenomenon caused by strong ultraviolet rays can be prevented while providing appropriate natural light necessary for cultivation of the crop 1.

According to this embodiment, natural light is supplied to the crop 1 as an auxiliary light source, so that the power consumption of the illumination device 132 is reduced by the non-ultraviolet light amount provided to the crop 1 by the auxiliary illumination device 172 .

In the closed container type cultivation apparatus, when a plurality of cultivation units are stacked, the natural light is not transmitted to the cultivation unit of the lower layer, so that uniform light may not be supplied to each crop in each layer. According to the embodiment, uniform natural light (non-ultraviolet rays) can be provided for each layer through the first optical fiber pipe 170, and crops can be standard cultured over all the layers.

The ultraviolet ray generator 190 may be provided below the re-battle 122a. The ultraviolet ray generator 190 irradiates ultraviolet rays to the root 12 of the crop 1 to prevent the root 12 of the crop 1 from getting mold. The ultraviolet rays distributed by the optical distributor 150 are transmitted to the ultraviolet ray generator 190 through the second optical fiber tube 180.

When cultivating different crops for each of the cultivation units 122, 124, 126 and 128, the crops are irradiated with light (artificial light and / or natural light), ultraviolet light amount, water and nutrients Can be controlled in different ways, and the cultivation conditions can be controlled according to the growth process of each crop.

Table 1 below shows the characteristics of the absorption wavelength range of the photoreceptor of plants and the light distribution ratio of various light sources. It can be seen that the light absorption spectrum of the photoreceptor chlorophyll is mainly concentrated in blue, purple and red .

Major photoreaction Photoreceptor Main absorption wavelength range (nm) photosynthesis Chlorophyll Blue: 400-500
Red: 640-700 Carotenoid Blue: 400-530 Optical shaping Phytochrome UV-A + blue: 380-480
Red: 540-690
Red: 700-750 (Guangzhou reaction) Cryptochrome Near UV-A380
Blue: around 450 Phototropin Near UV-A380
Blue: around 450 (light-sensitive reaction)

The optimal light distribution for photosynthesis is reported to be 24% of blue light, 32% of green light and 44% of red light, and the shape of the plant (leaf and stem growth) is 660 nm (red light) and 730 nm (far red light: Far- (R / FR), which includes the wavelength range of red (R) and red (R).

If this value is too large, the leaves and stems do not grow properly. Artificial light sources, except for incandescent bulbs, generally do not have enough light environment to grow plants because of their large R / FR values compared with natural light.

Therefore, it is necessary to develop a light source close to natural light (photon ratio ratio: R / FR = 1) or an optimum light distribution ratio condition for plant growth.

In general, blue LEDs do not emit wavelengths of 680 nm required for photosynthesis of plants, and blue, white, and red LEDs are used as light sources for plant artificial photosynthesis in actual plants.

In this case, the lifetime or luminous efficiency is increased, but there is a disadvantage in cost.

Therefore, the artificial light source for artificial photosynthesis of plants according to the embodiment of the present invention uses only one light source to simultaneously irradiate a wavelength of 440 nm and a wavelength of 680 nm required for plant photosynthesis, It is an invention which aims to economically reduce electric power dramatically.

Referring to FIG. 5, the artificial light source for artificial photosynthesis of plants according to an embodiment of the present invention includes a blue LED light source 10 and a red fluorescent material 20.

The blue LED light source generates a wavelength in the range of 440 nm and emits a red fluorescent material emitting a wavelength in the range of 600 nm to 700 nm.

When power is supplied to the light source to emit light, the color of the irradiated light source becomes pink.

At this time, spectrum analysis of the pink color irradiated by the light source resulted in the simultaneous generation of the wavelength of 440 nm and the wavelength of 680 nm required for photosynthesis of the plant, as shown in FIGS. 6A and 6B.

Further, as shown in the color coordinates of FIG. 7, it can be seen that blue or purple and red appear at the same time.

8 is an image of a light emitted from a pink LED light source according to an exemplary embodiment of the present invention. As shown in FIG. 8, it can be seen that a light source coated with a red fluorescent material emits pink light according to an embodiment of the present invention.

On the other hand, M ₂ Si ₅ N _8: Eu ²⁺ can be used as a red fluorescent material. Here, M may be any element of Ca, Sr, or Ba.

_{M 2 Si 5 N 8: Eu} 2 + (M = Ca, Sr, Ba) it can be seen that having a peak wavelength of about 650nm range on the light emission spectrum (luminescence spectra) shown in Figure 9 as a red phosphor.

CaAlSiN _3: Eu ^{2 +} As a red phosphor, as shown in FIG. 10, since it has a peak wavelength in the range of about 650 nm, a red phosphor capable of applying the blue LED of the present invention can be used.

As a red fluorescent substance _{6MgO · As 2 O 5: Mn} 4 +, 3.5MgO · 0.5MgF 2 · GeO 2: Mn 4+ also be seen that has a peak wavelength of about 650nm range as shown in FIG. 12 and FIG. 11 A red fluorescent material that can be applied to the blue LED of the present invention can be used.

Furthermore, according to another embodiment of the present invention, the artificial light source for artificial photosynthesis of plants may be formed by applying a red fluorescent material and a green fluorescent material to a blue LED light source. In this case, the red fluorescent material and the green fluorescent material may be mixed in a predetermined ratio and applied to the blue LED light source.

For example, according to this embodiment, the red fluorescent material and the green fluorescent material may be mixed in a weight ratio of about 6: 4 and applied to the blue LED light source.

As a result, the artificial light source according to the embodiment of the present invention can supply blue light, purple light, green light, and red light together to supply light required for photosynthesis to the plant.

In this embodiment, the green fluorescent material can be prepared by doping the activator ion Tb ^{3 +} having a different concentration to the host crystal BaMoO ₄ . Specifically, the method for producing the green fluorescent material is as follows.

The BaMoO ₄ : Tb ^{3 +} phosphor was synthesized using the solid phase reaction method to produce the green phosphor. The starting materials BaCO _{3 (purity: 99.995%), MoO 3 (} 99.9%), Tb 4 O 7 (99.9%) a was prepared by the stoichiometric, Tb ^{3 +} concentration (x) of the ion, respectively 0, 1, 5 , 10, 15 and 20 mol%, respectively, and the chemical reaction was as follows:

(1 - 1.5x) BaCO ₃ + MoO _{3 + 0.25xTb 4 O 7 → Ba 1} - 1.5x MoO 4: xTb + (1 - 1.5x) CO 2 + 0.125O 2

Each of the initial materials measured by the precision scale was separated by the concentration, and the resultant was put into a plastic bottle together with ethanol and ZrO ₂ balls, followed by ball-milling for 10 hours. The ball-mill was then placed in a beaker and dried at 60 ° C. for 10 hours The dried samples were finely pulverized to 80 μm in size and synthesized by calcination at 400 ° C. for 3 hours and sintering at 1100 ° C. for 5 hours in 6 alumina crucibles.

Further, according to another embodiment of the present invention, the artificial light source for artificial photosynthesis of plants may be formed by applying a yellow fluorescent material to a blue LED light source.

In this case, the yellow fluorescent material may be at least one of a silicate-based, garnet-based YAG and an oxynitride-based fluorescent material. Yellow fluorescent substance is _{Y 3 Al 5 O 12: Ce} 3+ (Ce: YAG), CaAlSiN 3: Ce 3 +, Eu 2 + -SiAlON one selected from the fluorescent substance, BOSE family selected from the series, or they may be mixed have. The yellow fluorescent material may also be doped to any suitable level to provide light output of the desired wavelength. At least one of Ce and Eu may be doped into the fluorescent substance at a dopant concentration ranging from about 0.1 to about 20%.

13 is a configuration diagram of an ultraviolet ray generator constituting an energy-standing container type cultivation apparatus according to an embodiment of the present invention. 4 and 13, the ultraviolet ray generator 190 includes an ultraviolet ray irradiating unit 192, an ultraviolet ray generator 194, and a measuring unit 196.

The ultraviolet ray irradiating unit 192 irradiates the ultraviolet ray transmitted through the second optical fiber tube 180 to the root 12 of the crop 1 to prevent the generation of mold. The ultraviolet generator 194 generates ultraviolet light to irradiate the root 12 of the crop 1 when the intensity of ultraviolet rays supplied through the second optical fiber tube 180 is not sufficient to prevent root mold.

The measuring unit 196 measures the amount of ultraviolet light transmitted through the second optical fiber tube 180. For example, the measurement unit 196 divides a part of the ultraviolet ray transmitted through the second optical fiber tube 180 by an optical coupler, measures the amount of the light, and irradiates the ultraviolet ray transmitted through the second optical fiber tube 180 It is possible to measure the light amount of the light source.

The ultraviolet ray generator 194 compares the ultraviolet light quantity measured by the measuring unit 196 with the reference light quantity, and when the light quantity of the measured ultraviolet light is lower than the reference light quantity, the ultraviolet light generator 194 compares the difference (reference light quantity- ultraviolet light quantity) Ultraviolet light can be generated and irradiated to the root 12 portion of the crop 1.

According to this embodiment, since ultraviolet rays separated by the optical distributor 150 are used for roots sterilization of crops, it is possible to prevent fungi from roots of crops by using natural light, thereby reducing the cost for supplying ultraviolet rays And can prevent root mold without using pesticides. Further, by controlling the ultraviolet light supply amount of the ultraviolet ray generator 194 according to the amount of natural light (ultraviolet ray), it is possible to efficiently and economically prevent root fungi.

FIG. 14 is a sectional view of a condenser plate constituting an energy-independent container-type cultivation apparatus according to another embodiment of the present invention. 15 is a plan view of a condenser plate constituting an energy-independent container-type cultivation apparatus according to another embodiment of the present invention. 16 is a cross-sectional view illustrating an operation state of a light-condensing plate constituting an energy-assisting container-type cultivating apparatus according to another embodiment of the present invention.

14 and 15 includes a sensing unit including a plurality of thermoelectric elements 144a-d embedded along the circumferential direction of the condenser 140, a plurality of thermoelectric elements 144a-d, and the driving unit 146 adjusts the direction (angle) of the condenser plate 140 according to the electrical signal generated by the sensing unit according to the temperature difference between the condenser 140 and the condenser 140. As shown in FIG.

The sensing unit generates an electrical signal according to a temperature difference between the plurality of thermoelectric elements 144a-d. In one embodiment, the sensing unit includes a first pair of thermoelectric elements 144a-b provided on both sides of the condenser 140 along a first direction X and a pair of first thermoelectric elements 144a-b provided in a second direction Y And a second pair of thermoelectric elements 144c-d provided on both sides of the condenser 140 along the first pair of thermoelectric elements 144c-d.

The driving unit 146 includes a first driving device 146a for rotating the condenser plate 140 in the first direction X in accordance with the temperature difference of the first pair of thermoelectric elements 144a-b, And a second driving device 146b for rotating the condenser plate 140 in the second direction Y in accordance with the temperature difference of the pair of thermoelectric elements 144c-d.

For example, when the condenser plate 140 is tilted with respect to the natural light SL incident from the sun as shown in Fig. 14, the light is incident on the second thermoelectric element 144b of the first pair of thermoelectric elements 144a-b And the amount of light per unit area of the natural light incident on the first thermoelectric element 144a side increases. Accordingly, a temperature difference occurs between the first thermoelectric element 144a and the second thermoelectric element 144b, and an electric signal is generated according to the temperature difference.

The driving unit 146 rotates the condenser plate 140 according to an electrical signal generated according to a temperature difference between the thermoelectric elements 144a-b and 144c-d. 14, the first driving device 146a adjusts the direction (angle) of the condenser plate 140 by rotating the condenser plate 140 clockwise in the first direction X as shown in FIG. 16, The opening surface of the light collecting plate 140 is arranged in a direction perpendicular to the natural light SL to efficiently collect the natural light SL.

According to this embodiment, the direction (angle) of the light condensing plate can be adjusted by using natural light by introducing thermoelectric elements using the shape and characteristics of the light collecting plate for collecting natural light, The efficiency can be increased. Although FIG. 15 shows an example of driving the condenser plate 140 using four thermoelectric elements, the number and arrangement of the thermoelectric elements can be variously modified.

It is to be understood that the above-described embodiments are provided to facilitate understanding of the present invention, and do not limit the scope of the present invention, and it is to be understood that various modified embodiments are also within the scope of the present invention. It is to be understood that the technical scope of the present invention should be determined by the technical idea of the claims and the technical scope of protection of the present invention is not limited to the literary description of the claims, Of the invention.

1: Crops
10: Blue LED
12: root
20: Red phosphor
100: Energy-independent container type cultivation equipment
110: Body
120: Grower
122, 124, 126, 128: Cultivation unit
122a: Reb Battle
122b: support member
122c:
122d:
130: Solar panel
132: Lighting device
140: condenser plate
142: Transparent plate
144a-d:
146:
146a: first driving device
146b: second driving device
150: optical distributor
152: beam splitter
160: Optical fiber
170: first optical fiber tube
172: auxiliary illumination device
174: Emitter window
180: second optical fiber tube
190: Ultraviolet ray generator
192:
194: Ultraviolet generator
196:

Claims (15)

delete A body provided in a container form;
A growing section provided in the body and in which at least one cultivation unit for growing crops is arranged in layers;
A solar photovoltaic panel provided on an upper surface of the body for converting solar energy into electrical energy;
An illumination device for illuminating artificial light with crops cultivated in the cultivation unit using electric energy converted by the photovoltaic panel;
At least one condensing plate provided on an outer surface of the body and having a concave curved surface to condense natural light;
An optical fiber member for transmitting the natural light condensed by the light condensing plate to the cultivation unit;
An auxiliary illumination device for irradiating the cultivated crop with natural light transmitted through the optical fiber member;
An optical distributor for distributing natural light condensed by the condenser to ultraviolet light and non-ultraviolet light; And
And an ultraviolet ray generator for irradiating a root portion of the crop with ultraviolet rays to prevent fungi from roots of the crop,
The illumination device comprising: a pink LED light source for simultaneously illuminating the blue light and the red light,
The cultivation unit includes:
Re-battle;
A support member inserted into a hole formed in the re-battle to support the crop; And
And a supply portion provided at a lower portion of the re-battle to supply water and nutrients to a root portion of the crop,
Wherein the auxiliary illumination device irradiates the crop with natural light transmitted through the optical fiber member at an upper portion of the re-battle,
The ultraviolet ray generator is provided at a lower portion of the re-battle,
Wherein the optical fiber member comprises:
A first optical fiber tube for transmitting non-ultraviolet rays distributed by the optical distributor to the auxiliary illumination device; And
And a second optical fiber tube for transmitting ultraviolet rays distributed by the optical distributor to the ultraviolet ray generator,
The ultraviolet ray generating apparatus includes:
And an ultraviolet ray irradiating unit for irradiating an ultraviolet ray transmitted through the second optical fiber tube to a root portion of the crop. 3. The method of claim 2,
The pink LED light source comprises:
Wherein the blue LED light source is coated with a red fluorescent material which generates light having a wavelength of 600 to 700 nm. The method of claim 3,
The red fluorescent material _{M 2 Si 5 N 8: Eu} 2 + (M = Ca, Sr, Ba), CaAlSiN 3: Eu 2 +, 6MgO · As 2 O 5: Mn 4+, 3.5MgO · 0.5MgF 2 · GeO _2: Mn ^{4 +,} at least one of the self-contained energy containerized cultivation apparatus of the. 3. The method of claim 2,
The pink LED light source comprises:
An energy-independent container-type cultivation device that simultaneously provides blue light corresponding to a wavelength of 440 nm and red light corresponding to a wavelength of 680 nm. A body provided in a container form;
A growing section provided in the body and in which at least one cultivation unit for growing crops is arranged in layers;
A solar photovoltaic panel provided on an upper surface of the body for converting solar energy into electrical energy;
An illumination device for illuminating artificial light with crops cultivated in the cultivation unit using electric energy converted by the photovoltaic panel;
At least one condensing plate provided on an outer surface of the body and having a concave curved surface to condense natural light;
An optical fiber member for transmitting the natural light condensed by the light condensing plate to the cultivation unit;
An auxiliary illumination device for irradiating the cultivated crop with natural light transmitted through the optical fiber member;
An optical distributor for distributing natural light condensed by the condenser to ultraviolet light and non-ultraviolet light; And
And an ultraviolet ray generator for irradiating a root portion of the crop with ultraviolet rays to prevent fungi from roots of the crop,
The illumination device comprises:
A white LED providing white light; And
And a red LED for providing red light,
The cultivation unit includes:
Re-battle;
A support member inserted into a hole formed in the re-battle to support the crop; And
And a supply portion provided at a lower portion of the re-battle to supply water and nutrients to a root portion of the crop,
Wherein the auxiliary illumination device irradiates the crop with natural light transmitted through the optical fiber member at an upper portion of the re-battle,
The ultraviolet ray generator is provided at a lower portion of the re-battle,
Wherein the optical fiber member comprises:
A first optical fiber tube for transmitting non-ultraviolet rays distributed by the optical distributor to the auxiliary illumination device; And
And a second optical fiber tube for transmitting ultraviolet rays distributed by the optical distributor to the ultraviolet ray generator,
The ultraviolet ray generating apparatus includes:
And an ultraviolet ray irradiating unit for irradiating an ultraviolet ray transmitted through the second optical fiber tube to a root portion of the crop. A body provided in a container form;
A growing section provided in the body and in which at least one cultivation unit for growing crops is arranged in layers;
A solar photovoltaic panel provided on an upper surface of the body for converting solar energy into electrical energy;
An illumination device for illuminating artificial light with crops cultivated in the cultivation unit using electric energy converted by the photovoltaic panel;
At least one condensing plate provided on an outer surface of the body and having a concave curved surface to condense natural light;
An optical fiber member for transmitting the natural light condensed by the light condensing plate to the cultivation unit;
An auxiliary illumination device for irradiating the cultivated crop with natural light transmitted through the optical fiber member;
An optical distributor for distributing natural light condensed by the condenser to ultraviolet light and non-ultraviolet light; And
And an ultraviolet ray generator for irradiating a root portion of the crop with ultraviolet rays to prevent fungi from roots of the crop,
The illumination device comprising: an artificial LED light source for simultaneously illuminating the blue light and the yellow light,
The cultivation unit includes:
Re-battle;
A support member inserted into a hole formed in the re-battle to support the crop; And
And a supply portion provided at a lower portion of the re-battle to supply water and nutrients to a root portion of the crop,
Wherein the auxiliary illumination device irradiates the crop with natural light transmitted through the optical fiber member at an upper portion of the re-battle,
The ultraviolet ray generator is provided at a lower portion of the re-battle,
Wherein the optical fiber member comprises:
A first optical fiber tube for transmitting non-ultraviolet rays distributed by the optical distributor to the auxiliary illumination device; And
And a second optical fiber tube for transmitting ultraviolet rays distributed by the optical distributor to the ultraviolet ray generator,
The ultraviolet ray generating apparatus includes:
And an ultraviolet ray irradiating unit for irradiating an ultraviolet ray transmitted through the second optical fiber tube to a root portion of the crop. delete delete delete 8. The method according to any one of claims 2, 6 and 7,
The ultraviolet ray generating apparatus includes:
A measuring unit for measuring an amount of ultraviolet light transmitted through the second optical fiber tube; And
An ultraviolet generator for generating ultraviolet light according to the intensity of the ultraviolet light and irradiating the ultraviolet light to the root of the crop;
Further comprising the steps of: 8. The method according to any one of claims 2, 6 and 7,
The optical splitter comprises:
A beam splitter for transmitting the ultraviolet light or the non-ultraviolet light of the natural light and reflecting the other one;
Wherein the container-type cultivation apparatus comprises: 8. The method according to any one of claims 2, 6 and 7,
Wherein the first optical fiber tube and the second optical fiber tube include at least one optical coupler for distributing the natural light so as to transmit uniform natural light to the plurality of layers of the cultivation unit. 8. The method according to any one of claims 2, 6 and 7,
A sensing unit including a plurality of thermoelectric elements provided along a circumferential direction of the light condensing plate and generating an electric signal according to a temperature difference between the plurality of thermoelectric elements; And
A driving unit for adjusting a direction of the light-condensing plate according to an electrical signal generated by the sensing unit;
Further comprising the steps of: 15. The method of claim 14,
The sensing unit includes:
A pair of first thermoelectric elements provided on both sides of the condenser plate along a first direction; And
A second thermoelectric element pair provided on both sides of the condenser plate along a second direction perpendicular to the first direction;
/ RTI >
The driving unit includes:
A first driving device for rotating the light-condensing plate in the first direction according to a temperature difference of the first pair of thermoelectric elements; And
A second driving device for rotating the light-condensing plate in the second direction according to a temperature difference of the pair of second thermoelectric elements;
Wherein the container-type cultivation apparatus comprises:

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