KR20200107526A - Smart plant cultivating system using solar photovoltaic power generation - Google Patents

Abstract

Provided is a smart plant cultivating system using solar power generation. The smart plant cultivating system using solar power generation comprises: a solar panel which condenses sunlight and converts the sunlight into electrical energy; a power storage unit in which the electrical energy is stored; a driving unit which adjusts a location of the solar panel; a sensing unit which measures the illuminance of the sunlight; a lighting device which receives power from the power storage unit, includes a light emitting element, and emits artificial light to a plant through the light emitting element; and a control unit which controls the location of the solar panel through the driving unit according to the measured illuminance. The control unit moves the solar panel to a first location through the driving unit when the measured illuminance is less than a first threshold so that the sunlight is incident on the plant. The lighting device stops emission of the artificial light to the plant when the measured illuminance is less than the first threshold.

Description

Smart plant cultivation system using solar power generation {SMART PLANT CULTIVATING SYSTEM USING SOLAR PHOTOVOLTAIC POWER GENERATION}

This embodiment relates to a plant cultivation technology using solar power generation.

Normally, plants are required to grow, and their growth is influenced by air conditions such as light, temperature, humidity, and other physical natural conditions.In order for plants to grow faithfully, they must meet the necessary conditions such as light, temperature and humidity. do. In particular, light is the main factor that increases the amount of photosynthesis in plants, so a stable supply is required.

In Korea, the four seasons are relatively distinct, and environmental changes in various conditions can occur. In summer and winter, most plants stop growing or cannot grow at all due to heat waves caused by hot sunlight and cold weather. In order to provide an environment in which crops can grow by randomly changing the natural environment, crops are grown using houses or greenhouses using vinyl or glass.

However, the conventional cultivation method using a greenhouse or a house can use only sunlight for a limited time because the sun is directly irradiated to the plants. Therefore, it is not only unable to stockpile the energy obtained from the sun, it cannot provide sufficient sunlight to plants during other times without the sun.

Accordingly, it is necessary to develop a technology to supply a uniform amount of sunlight to plants.

Against this background, the object of the present embodiment is to provide a smart plant cultivation system utilizing solar power that stably supplies solar energy to crops by using sunlight having a specific illuminance or higher as an energy source of a lighting device.

In addition, an object of this embodiment is to provide a smart plant cultivation system using solar power that emits various wavelengths according to a specific purpose.

In order to achieve the above object, one embodiment, a solar panel for condensing sunlight and converting the sunlight into electric energy; A power storage unit for storing the electric energy; A driving unit for adjusting the position of the solar panel; A sensing unit measuring the illuminance of the sunlight; A lighting device receiving power from the power storage unit, including a light emitting device, and irradiating artificial light to the plant through the light emitting device; And a control unit for controlling the position of the solar panel through the driving unit according to the measured illuminance, wherein the controller allows the sunlight to enter the plant when the measured illuminance is less than a first threshold. Solar power generation, characterized in that the solar panel is moved to a first position through the driving unit, and the lighting device stops irradiating the artificial light to the plant when the measured illuminance is less than the first threshold value. It provides a smart plant cultivation system using

In the system, the controller moves the solar panel to a second position through the driving unit so that the solar light enters the solar panel when the measured illuminance is greater than or equal to the first threshold and less than a second threshold. And the power storage unit converts and stores energy of the incident sunlight into first power, and the lighting device receives the first power and irradiates the artificial light to the plant, and the second threshold is , May be greater than the first threshold value.

In the system, when the measured illuminance is greater than or equal to the second threshold value, the controller moves the solar light to the second position of the solar panel through the driving unit so that the sunlight enters the solar panel, and the lighting device The first power is continuously supplied and the artificial light is continuously irradiated to the plant, and the power storage unit may convert and store the energy of the incident sunlight into second power.

In the system, a power control unit for supplying power to the lighting device by stabilizing the power of the power storage unit, wherein the control unit applies the second power to the power when the measured illuminance has a value of 0 (ZERO). A power control unit is controlled to be supplied from the storage unit to the lighting device, and the lighting device may irradiate the plant with the artificial light by receiving the first or second power.

In the system, a support structure for supporting the solar panel is included, and the lighting device may be mounted around the support structure.

As described above, according to the present embodiment, it is possible to produce new and renewable energy through solar power generation.

In addition, according to the present embodiment, by converting solar energy into electric power and cultivating crops using solar energy as a power source for artificial lighting, it is possible to combine solar power generation and agriculture.

In addition, according to the present embodiment, it is possible to enable organic eco-friendly farming by promoting or inhibiting specific functions of plants without using fertilizers or pesticides.

1 is a conceptual diagram showing the operation of a smart plant cultivation system according to an embodiment.
2 is a block diagram of a smart plant cultivation system according to an embodiment.
3 is a diagram illustrating a relationship between an amount of photosynthesis and an illuminance according to an exemplary embodiment.
4 is a diagram illustrating an area where solar energy is utilized according to a daylight time according to an exemplary embodiment.
5 is a diagram illustrating a positional movement of a solar panel according to an exemplary embodiment.
FIG. 6 is a diagram illustrating matching of a wavelength of sunlight required for a growing period of a plant and a wavelength required for each growing period of a plant according to an exemplary embodiment.
7 is a conceptual diagram illustrating a smart plant cultivation system equipped with a speaker for outputting sound according to an exemplary embodiment.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible even if they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

In addition, in describing the constituent elements of the present invention, terms such as first, second, A, B, (a), (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to that other component, but another component between each component It should be understood that elements may be “connected”, “coupled” or “connected”.

1 is a conceptual diagram showing a smart plant cultivation system according to an embodiment.

Referring to Figure 1, the basic operation of the smart plant cultivation system 100 is shown. The smart plant cultivation system 100 may include a server 10, a solar collecting device 120 and a lighting device 130. The solar collection device 120 may include a solar panel 121.

The server 10 may remotely control the photovoltaic collecting device 120 and the lighting device 130. The server 10 may transmit and receive data with the communication unit 140. The server 10 may exchange data measured by the sensing unit 150 through the communication unit 140.

The server 10 generates command data based on the data received from the sensing unit 150 and transmits the command data to the communication unit 140, so that the solar panel 121 and the lighting of the photovoltaic collecting device 120 At least one of the devices 130 may be controlled. That is, the server 10 may remotely control at least one of the solar panel 121 and the lighting device 130. For example, the manager may collect data on a situation around a crop through the server 10, determine the situation from the collected data, and transmit a command corresponding thereto to the control unit 160 through the communication unit 140.

The solar light collection device 120 may collect natural light from the sun 1, convert the collected natural light into electrical energy, and store the converted electrical energy. Solar light (natural light incident from the sun) may be irradiated to the solar panel 121 and stored as well as directly irradiated to the plant 2. When a specific condition is satisfied, the solar collecting device 120 may change its position so that sunlight can be directly irradiated to the plant 2. That is, when the incident angle of the solar panel 121 and the sunlight changes by the rotation of the solar panel 121, the sunlight can be directly transmitted to the plant 2.

The lighting device 130 may irradiate the plant 2 with artificial light. The lighting device 130 may generate the artificial light by using electric energy from sunlight as a power source. The artificial light may be generated from a plurality of light emitting devices included in the lighting device 130. The combination of the plurality of light emitting devices may generate artificial light having various wavelengths. However, the lighting device 130 is not limited to solar energy and may operate by receiving power from an energy source other than solar energy.

The lighting device 130 may be disposed at a position in which artificial light can be applied to the plant 2. Preferably, as shown in FIG. 1, the lighting device 130 may be positioned higher than the plant 2 and may be disposed so that artificial light is irradiated from the top to the bottom. The arrangement of the lighting device 130 of this type may be referred to as a first arrangement.

In addition, the lighting device 130 may be disposed in a position where a moving space of the plant 2 manager or agricultural machinery can be secured. Preferably, the lighting device 130 may be attached to and coupled to the support structure 124 or around it. The arrangement of the lighting device 130 of this type may be referred to as a second arrangement. The first arrangement may have a feature that the lighting device 130 is located at a low height, so that the amount of artificial light irradiated to the plant 2 is large, but the space in which the manager or agricultural machinery can move is narrow. On the other hand, the second arrangement may have a feature that a space in which a manager or agricultural machine can move is increased, but the amount of artificial light irradiated to the plant 2 is small. However, if the amount of light of the lighting device 130 attached to the support structure 124 is increased or the number thereof is increased, the amount to be irradiated to the plant 2 can be secured.

On the other hand, the arrangement of the lighting device 130 is not limited to the first and second arrangements, but may have various forms, as long as the amount of light required for the plant 2 can be provided.

2 is a block diagram of a smart plant cultivation system according to an embodiment.

2, the configuration of the smart plant cultivation system 100 is shown.

The smart plant cultivation system 100 includes a server 10, a memory 110, a solar light collection device 120, a lighting device 130, a communication unit 140, a sensing unit 150, a control unit 160, and a speaker ( 170), a driving unit 180 and a power control unit 190 may be included.

The server 10 may receive data on the external environment measured by the sensing unit 150 through the communication unit 140. The server 10 may transmit command data based on data on the external environment to the communication unit 140. The command data may be transmitted to the control unit 130 through the communication unit 140. The controller 160 may control the driving unit 180 and the lighting device 130 according to the command data.

The photovoltaic collection device 120 may further include a power control unit 122 and a power storage unit 123.

The power control unit 122 may stabilize the electric energy converted from sunlight and store it in the power storage unit 123. Stabilization of electric energy may include adjusting the electric energy to a form that can be stored in the power storage unit 123. For example, the power control unit 122 may adjust the voltage and current of electric energy converted from sunlight, or may adjust DC and AC mutually.

The power storage unit 123 may store electric energy stabilized by the power control unit 122. Energy stored in the power storage unit 123 may be supplied to the lighting device 130 and the speaker 170. The power storage unit 123 may store excess power (energy) for future use. For example, the power storage unit 123 may include an energy storage system (ESS). ESS is a system that stores and manages energy so that it can be used efficiently, and ESS can be used in power plants, transmission and distribution facilities, homes, factories, and enterprises. In ESS, ESS for photovoltaic modules, which are mainly installed on the roof of the home, stores the remaining power and uses the stored power during times when demand is high or when electricity costs are high, minimizing power outage damage and saving power bills. In addition, ESS can increase the efficiency of use of new and renewable energy by storing and managing new and renewable energy that is irregularly produced, such as solar, wind, and hydropower at power plants. ESS can be classified into a battery type using a secondary battery, a compressed air storage (CAES), and a non-battery type using a flywheel, depending on the energy storage method.

The lighting device 130 may generate artificial light by receiving power from the power storage unit 123. The lighting device 130 may irradiate the plant with the artificial light. In addition, the lighting device 130 may not generate the artificial light in certain cases.

The lighting device 130 may not generate the artificial light when the illuminance measured by the sensing unit 150 exceeds a specific threshold value or falls within a specific threshold value range. For example, if the controller 160 determines that the illuminance measured by the sensing unit 150 is less than the first threshold, the solar panel 121 is moved to the first position through the driving unit 180 so that sunlight enters the plant. Can be moved. The first position may be a position of the solar panel 121 that allows sunlight to directly enter the plant 2 without touching the solar panel 121. Here, the lighting device 130 may not generate the artificial light and may not irradiate the plant 2.

The lighting device 130 may generate and emit the artificial light when the illuminance measured by the sensing unit 150 exceeds a specific threshold value or falls within a specific threshold value range. For example, if the controller 160 determines that the illuminance measured by the sensing unit 150 is greater than or equal to the first threshold and is less than the second threshold, the solar light enters the solar panel 121 through the driving unit 180 The optical panel 121 may be moved to the second position. The second position may be a position of the solar panel 121 to allow sunlight to reach the solar panel 121. The second threshold may be greater than the first threshold. Here, solar energy incident on the solar panel 121 may be converted into electric energy and stored as first power in the power storage unit 123. The lighting device 130 may generate artificial light and irradiate the plant 2 by receiving the first power, which is solar energy when the illuminance is greater than or equal to the first threshold and less than the second threshold.

When the illuminance measured by the sensing unit 150 exceeds a specific threshold value or falls within a specific threshold value range, the lighting device 130 may maintain the generation of the artificial light and irradiation to the plant 2. For example, if the controller 160 determines that the illuminance measured by the sensing unit 150 is equal to or greater than the second threshold, the controller 160 controls the solar panel 121 through the driving unit 180 so that sunlight enters the solar panel 121. The second position can be moved or the second position can be maintained. Here, solar energy incident on the solar panel 121 may be converted into electric energy and stored as second power in the power storage unit 123. The lighting device 130 may continuously generate artificial light and irradiate the plant 2 by receiving the first power, which is solar energy when the illuminance is greater than or equal to the first threshold and less than the second threshold. The second power may later be used as a power source of at least one of the lighting device 130 and the speaker 170 or may be used for other purposes.

When the illuminance measured by the sensing unit 150 is 0 (zero) or less, the lighting device 130 may generate the artificial light and irradiate it to the plant 2. For example, it may be at night without sunlight, or plants (2) may be in the shade. If so, the control unit 160 determines that the illuminance measured by the sensing unit 150 is 0 and controls the power control unit 190 to supply the first or second power stored in the power storage unit 123 to the lighting device 130. can do. In terms of energy efficiency, it may be preferable that the second power is reserved for use in places where high power is required, and the lighting device 130 receives the first power to generate the artificial light and irradiates the plant 2 with it. This is because the second power is generated from sunlight having a high illuminance, and an amount of energy thereof may be higher than that of the first power.

The lighting device 130 may be composed of a plurality of light emitting devices including first to third light emitting devices. Each of the plurality of light-emitting devices may emit light with different amounts of light to generate and emit artificial light of a specific band or artificial light of a specific wavelength.

The lighting device 130 may generate artificial light including a first wavelength and a second wavelength to irradiate the plant 2. The controller 160 may control the lighting device 130 to emit the first and/or second wavelengths based on data of an external environment measured by the sensing unit 150. At least one of the first and second wavelengths may be selected and radiated according to the growing period of the plant 2. Here, the lighting device 130 may generate at least one of the first and second wavelengths by varying the amount of light of at least one of the first to third light emitting devices.

The lighting device 130 may include a light emitting diode (LED) as a light emitting device. LEDs can implement 460nm blue and 660nm red, which are wavelengths used for photosynthesis of plants, as illumination, so plant cultivation may be possible. In addition, the LED can implement an ultraviolet (UV) wavelength that can increase the content of functional materials and a 600 nm wavelength that avoids pests. Therefore, LED can be used as a lighting for multi-purpose plant cultivation such as energy saving in plant cultivation, enhancement of growth promotion function, and pest avoidance.

The communication unit 140 may be connected to the server 10 to transmit and receive data with the server 10. The communication unit 140 may transmit the data measured by the sensing unit 150 to the server 10. The communication unit 140 may receive command data for controlling the solar panel 121 or the lighting device 130 from the server 10 and transmit the command data to the controller 160.

The sensing unit 150 may measure the external environment of the plant 2. The sensing unit 150 may include an illuminance sensor to measure the illuminance of sunlight. The sensing unit 150 may measure the temperature around the plant 2 by including a temperature sensor. The sensing unit 150 may include a concentration sensor to measure the concentration of ambient air components (eg, carbon dioxide, nitrogen). The data measured by the sensing unit 150 is transmitted to the controller 160 and may be used by the controller 160 to control the lighting device 130 and the driving unit 180. In addition, the data measured by the sensing unit 150 is transmitted to the server 10, and the server 10 may generate command data based on the data measured by the sensing unit 150 and transmit it to the communication unit 140. .

The controller 160 may control each component of the smart plant cultivation system 100. The controller 160 includes a memory 110, a photovoltaic collecting device 120, a lighting device 130, a communication unit 140, a sensing unit 150, a speaker 170, a driving unit 180, and a power control unit 190. Can be controlled.

The controller 160 may read necessary data from the memory 110.

The controller 160 may control the power control unit 190 of the photovoltaic collecting device 120 so that the electric energy converted by the solar panel 121 can be stored in a stable state.

The controller 160 may control the lighting device 130 to generate artificial light or stop the generation. For example, the control unit 160 may generate the artificial light according to conditions set differently according to the type of the plant 2. For example, in order to cultivate rice, it may be necessary to irradiate red light and blue light at a ratio of 6:4 to 800 PPFD (photosynthetic photon flux density) for 12 hours a day during a 100-day cultivation period. The above conditions may differ depending on the type of plant 2 and may be experimentally calculated, and the calculated value may be stored in the memory 110. The controller 160 may read the above conditions (light emitting device ratio, cultivation period, PPFD, daily lighting time) from the memory 110 and control light emission of the lighting apparatus 130 accordingly.

The controller 160 may adjust the amount of light of the plurality of light emitting devices included in the lighting device 130 so that the artificial light includes a specific wavelength for each growth period of the plant 2.

The controller 160 may control the communication unit 140 so that the data measured by the sensing unit 150 is transmitted to the server 10 and data is received from the server 10.

The controller 160 may control each of the ancestors so that the sensors of the sensing unit 150 detect factors that determine the external environment surrounding the plant 2. For example, the controller 160 may turn on-off at least one of an illuminance sensor, a temperature sensor, a humidity sensor, and a concentration sensor as necessary.

The controller 160 may control the speaker 170 so that necessary sound is produced according to the growth of the plant 2. When the speaker 170 outputs the first sound and the second sound, the controller 160 selects and outputs one of the first and second sounds based on the data measured by the sensing unit 150. 170) can be controlled. For example, when classical music is preferred for plant growth, the controller 160 may control the speaker 170 to output classical music.

The controller 160 may control the driving unit 180 to adjust the position of the solar panel 121. For example, when the solar panel 121 should not receive sunlight (when sunlight should be directly irradiated to a plant), the controller 160 is a driving unit so that the solar panel 121 moves to the first position. You can control 180. In addition, when the solar panel 121 needs to receive sunlight, the controller 160 may control the driving unit 180 to move the solar panel 121 to the second position.

The control unit 160 may control the power control unit 190 to provide driving power for operating each component of the smart plant cultivation system 100.

The speaker 170 may output a plurality of sounds including a first sound and a second sound. The plurality of sounds may be related to the growth of plants. For example, the plurality of sounds may be to grow or inhibit the growth of plants. In addition, when one of the first sound and the second sound is selected by the control unit 160, the speaker 170 may output the selected sound.

3 is a diagram illustrating a relationship between an amount of photosynthesis and an illuminance according to an exemplary embodiment.

Referring to FIG. 3, the amount of photosynthesis of the plant 2 according to the illuminance may appear. The amount of photosynthesis of the plant 2 can converge without further increasing at a certain illuminance. The amount of photosynthesis of the plant (2) increases as the illuminance increases, but when the illuminance reaches the light saturation point (x), the amount of photosynthesis occurs by y, and when the illuminance exceeds the light saturation point (x), the amount of photosynthesis does not increase and converges to y _s . .

When the illuminance is greater than or equal to the light saturation point (x), since it does not affect the amount of photosynthesis, it may be inefficient to use sunlight for photosynthesis at an illuminance equal to or greater than the light saturation point (x). When the illuminance is greater than or equal to the light saturation point (x), since it is midday during the day's sunlight, it may not be efficient to irradiate the plant 2 with sunlight at this time. Therefore, if the illuminance is greater than or equal to the light saturation point (x), it may be desirable to use sunlight for other purposes. For example, sunlight having an illuminance equal to or higher than the light saturation point (x) can be stored as electric energy through solar power generation and used for other purposes.

4 is a diagram illustrating a method of utilizing solar energy according to a daylight time according to an exemplary embodiment.

Referring to FIG. 4, a method of utilizing solar energy according to the time of daylight is shown. According to the smart plant cultivation system 100 of the present invention, sunlight can be used for different purposes according to a specific illuminance. The intensity of sunlight can vary from sunrise to sunset. The change in the illuminance of sunlight may have a parabolic shape that increases from about noon and then decreases again as shown in FIG. 4. Therefore, there may be two times of the day with the same illuminance.

According to the smart plant cultivation system 100 of the present invention, sunlight can be used for different purposes according to each illumination range. Sunlight less than the first illuminance (x ₁ ) can be directly irradiated to the plant (2). That is, since the sunlight from sunrise to the time t ₁ when the first illuminance x ₁ has an illuminance less than the light saturation point x, it may be efficient for photosynthesis. Therefore, sunlight at this time can be directly irradiated to the plant (2). The first illuminance (x ₁ ) may coincide with the light saturation point.

In the first illuminance (x ₁ ) or more and less than the second illuminance (x ₂ ), sunlight is converted into electrical energy and stored in the power storage unit 123, and the stored electrical energy is used as power for the lighting device 130 later. I can. In other words, sunlight from the first illuminance (x ₁ ) time (t ₁ ) to the second illuminance (x ₂ ) time (t ₂ ) has an illuminance greater than or equal to the light saturation point (x), so it is not efficient for photosynthesis. not. Therefore, direct irradiation of this sunlight to the plant 2 may be inefficient in terms of energy utilization. It may be efficient to store sunlight at this time as extra energy in the power storage unit 123 and use it for other purposes when necessary. The other use may include that the lighting device 130 is utilized as a power source for generating the artificial light.

Solar light having a second illuminance (x ₂ ) or higher may also be converted into electrical energy and stored in the power storage unit 123. That is, sunlight from the second illuminance (x ₂ ) time t ₂ to the second illuminance (x ₂ ) time t ₃ after noon may also be stored in the power storage unit 123 . Electric energy stored in the power storage unit 123 may be used as a power supply source when high power is required. Since solar light of the second illuminance (x ₂ ) or higher has a large illuminance and holds a large amount of energy, it may be preferable to be used for a device operating at a higher power than that used for the lighting device 130 operating at relatively low power. have.

As time passes, the illuminance of sunlight may drop from the second illuminance (x ₂ ) to the first illuminance (x ₁ ). The illuminance of sunlight may be a value equal to or greater than the first illuminance (x ₁ ) and less than the second illuminance (x ₂ ). Therefore, sunlight from the second illuminance (x ₂ ) to the time (t ₃ ) to the first illuminance (x ₁ ) again (t ₄ ) is the first illuminance (x ₁ ) at the time t _It is stored in the power storage unit 123 like sunlight from ₁ ) to the second illuminance (x ₂ ) time (t ₂ ) and can be used in the lighting device 130 later.

As time elapses, the illuminance of sunlight may again fall below the first illuminance (x ₁ ). Solar light intensity of the first light intensity (x ₁₎ can be a value less than, again, the first roughness (x ₁₎ is that the time (t ₄₎ sun light, the first light intensity from sunrise (x ₁ from to sunset ) Can be directly irradiated to the plant (2) like sunlight until the time (t ₁ ).

Here, the first illuminance (x ₁ ) may correspond to the first threshold value, and the second illuminance (x ₂ ) may correspond to the second threshold value, respectively. Therefore, the second illuminance (x ₂ ) may be greater than the first illuminance (x ₁ ). When the illuminance measured by the sensing unit 150 is less than the first illuminance (x ₁ ), the controller 160 adjusts the position of the solar panel 121 so that sunlight can be directly irradiated to the plant 2. Can be changed to 1 position.

When the illuminance measured by the sensing unit 150 is equal to or greater than the first illuminance (x ₁ ) and less than the second illuminance (x ₂ ), the control unit 160 determines the position of the solar panel 121 so that the solar panel It can be changed to a second position that allows it to be irradiated with 121. Here, the smart plant cultivation system 100 converts sunlight when the first illuminance (x ₁ ) or more and less than the second illuminance (x ₂ ) to the first power and supplies it to the power of the lighting device 130 to the lighting device ( 130) can be made to irradiate the plant (2) with artificial light.

When the illuminance measured by the sensing unit 150 is equal to or greater than the second illuminance (x ₂ ), the controller 160 may maintain or move the solar panel 121 to the second position. Here, the smart plant cultivation system 100 may convert sunlight at a second illuminance (x ₂ ) or more into second power and store it in the power storage unit 123 without using it. At the same time, the smart plant cultivation system 100 may supply the first power to the power of the lighting device 130 to keep the lighting device 130 irradiating the plant 2 with artificial light.

In this drawing, the first region 410 may represent an amount of solar energy during a daylight period when the illuminance of sunlight becomes less than the first illuminance (x ₁ ). Solar energy of the first region 410 may be directly irradiated to the plant 2. The second area 420 may represent an amount of solar energy during a sunlight period in which an illuminance of sunlight is greater than or equal to the first illuminance (x ₁ ) and less than the second illuminance (x ₂ ). The solar energy of the second area 420 is converted into electric energy and stored in the power storage unit 123, and then may be used as a power source for the lighting device 130. The third area 430 may represent an amount of solar energy during a daylight period when the illuminance of sunlight becomes equal to or greater than the second illuminance (x ₂ ). Solar energy in the third area 430 may be converted into electrical energy and stored in the power storage unit 123.

5 is a diagram illustrating a positional movement of a solar panel according to an exemplary embodiment.

Referring to FIG. 5, a view in which the solar panel 121 moves is shown. The solar panel 121 can move in the horizontal direction (H direction), vertical direction (V direction), and angle (A direction) side. Accordingly, the solar panel 121 may have a specific H-direction rotation angle, V-direction height, and A-direction rotation angle.

The solar panel 121 may be supported by the support structure 124. The driving unit 180 may include an electric motor. Accordingly, the driving unit 180 may be electrically connected to the solar panel 121 and the support structure 124 to mechanically move the solar panel 121 and the support structure 124.

The solar panel 121 can be moved to various locations according to the purpose of using sunlight. For example, when sunlight has an illuminance less than the light saturation point x and needs to be directly irradiated to the plant 2, the solar panel 121 may move to the first position. The first position may be a position of the solar panel 121 such that the rays of sunlight and the surface of the solar panel 121 are aligned. In the first position, the solar panel 121 may have a first H direction rotation angle, a first V direction height, and a first A direction rotation angle.

Specifically, the controller 160 may move the position of the solar panel 121 to the first position through the driving unit 180 based on the data measured by the sensing unit 150. The controller 160 may manipulate the driving unit 180 so that the solar panel 121 comes to the first position when the illuminance measured by the illuminance sensor is less than the first illuminance (x ₁ ) (first threshold). . The driving unit 180 may manipulate the support structure 124 so that the solar panel 121 has a first H-direction rotation angle and a first V-direction height. The driving unit 180 may manipulate the solar panel 121 to have a first A-direction rotation angle.

In addition, when sunlight has an illuminance greater than or equal to the light saturation point (x) and is not immediately irradiated to the plant 2 but needs to be stored and stored in the power storage unit 123, the solar panel 121 is moved to the second position. You can move. The second position may be a position of the solar panel 121 such that a ray of sunlight and a surface of the solar panel 121 are perpendicular to each other. In the second position, the solar panel 121 may have a second H direction rotation angle, a second V direction height, and a second A direction rotation angle.

Specifically, the controller 160 may move the position of the solar panel 121 to the second position through the driving unit 180 based on the data measured by the sensing unit 150. The controller 160 may manipulate the driving unit 180 so that the solar panel 121 comes to the second position when the illuminance measured by the illuminance sensor is equal to or greater than the first illuminance (x ₁ ) (first threshold). . The driving unit 180 may manipulate the support structure 124 so that the solar panel 121 has a second H-direction rotation angle and a second V-direction height. The driving unit 180 may manipulate the solar panel 121 to have a second A-direction rotation angle.

In addition, even if the illuminance measured by the illuminance sensor is equal to or greater than the second illuminance (x ₂ ) (the second threshold value), the controller 160 may operate the driving unit 180 so that the solar panel 121 is in the second position. I can.

Accordingly, the smart plant cultivation system 100 of the present invention can adjust the amount of sunlight distribution between the solar panel 121 and the plants by adjusting the position of the solar panel 121.

FIG. 6 is a diagram illustrating matching of a wavelength of sunlight required for a growing period of a plant and a wavelength required for each growing period of a plant according to an exemplary embodiment.

Referring to FIG. 6A, among the wavelengths of sunlight, wavelengths necessary for the growing period of the plant are shown, and referring to FIG. 6B, the wavelengths necessary for the growing period of the plant are matched and shown.

Referring to FIG. 6A, sunlight may be composed of continuous wavelengths. Sunlight may have a spectrum ranging from gamma rays, which are short wavelengths, to X-rays, ultraviolet rays, visible rays, and infrared rays, which are long wavelengths. Infrared rays may have a wavelength of about 780 nm or more, and gamma rays, X-rays, and ultraviolet rays may have a wavelength of 380 nm or less.

Each wavelength of sunlight can individually have its own effect. For example, ultraviolet rays can have an excellent sterilizing effect and infrared rays can have a strong heat transfer effect.

In terms of plant growth, each wavelength of sunlight can have different effects. For example, sunlight may include first to fourth wavelengths 710 to 740 in the order from short to long. The first wavelength 710 may have effects of promoting germination, suppressing diseases and pests, and suppressing growth. The second wavelength 720 may have an effect of inducing flowering. The third wavelength 730 may have an effect of promoting growth. The fourth wavelength 740 may have an effect of suppressing flowering and suppressing overgrowth.

Here, the smart plant cultivation system 100 of the present invention may generate artificial light including first to 4 wavelengths 710 to 740 to irradiate the plant 2. The smart plant cultivation system 100 converts sunlight having a light saturation point (x) or more into first power, which is electric energy, and receives the first power and includes any one of the first to fourth wavelengths (710 to 740). Can generate artificial light.

Referring to FIG. 6B, the first to fourth wavelengths 710 to 740 may be irradiated differently for each growing period of the plant 2 by the smart plant cultivation system 100.

Artificial light including the first wavelength 710 may be irradiated during the germination period of the plant 2. Since germination must be promoted during the germination period of the plant 2, the first wavelength 710 having the effect of promoting germination may be suitable. Specifically, the controller 160 may manipulate the first to third light emitting devices of the lighting device 130 to generate the first wavelength 710 when receiving data that has passed the first time from the sensing unit 150. . The controller 160 may generate artificial light of the first wavelength 710 by appropriately adjusting the amount of light of the first to third light emitting devices.

Artificial light including the first wavelength 710 may be irradiated even at the beginning of growth of the plant 2. Since disease and pests must be suppressed at the beginning of growth of the plant 2, the first wavelength 710 having the effect of suppressing disease and pests may be suitable. Specifically, the controller 160 may manipulate the first to third light emitting devices of the lighting device 130 to generate the first wavelength 710 when receiving data from the sensing unit 150 for which the second time has elapsed. . The controller 160 may generate artificial light of the first wavelength 710 by appropriately adjusting the amount of light of the first to third light emitting devices.

Artificial light including the second wavelength 720 may be irradiated to the ignition period of the plant 2. Since flowering should be induced during the ignition period of the plant 2, the second wavelength 720 having the effect of inducing flowering may be suitable. Specifically, the controller 160 may manipulate the first to third light-emitting elements of the lighting device 130 to generate the second wavelength 720 when receiving data that has passed the third time from the sensing unit 150. . The controller 160 may generate artificial light of the second wavelength 720 by appropriately adjusting the amount of light of the first to third light emitting devices.

Artificial light including the third wavelength 730 may be irradiated during the growing period of the plant 2. Since growth must be promoted in the growing season of the plant 2, the third wavelength 730 having the effect of promoting growth may be suitable. Specifically, the controller 160 may manipulate the first to third light emitting devices of the lighting device 130 to generate the third wavelength 730 when receiving data after the fourth time has elapsed from the sensing unit 150. . The controller 160 may generate artificial light of the third wavelength 730 by appropriately adjusting the amount of light of the first to third light emitting devices.

Artificial light including the fourth wavelength 740 may be irradiated at the end of growth of the plant 2. Since flowering and overgrowth should be suppressed at the end of growth of the plant 2, the fourth wavelength 740 having the effect of suppressing flowering and overgrowing may be suitable. Specifically, the controller 160 may manipulate the first to third light emitting devices of the lighting device 130 to generate the fourth wavelength 740 when receiving data after the fifth time has elapsed from the sensing unit 150. . The controller 160 may generate artificial light of the fourth wavelength 740 by appropriately adjusting the amount of light of the first to third light emitting devices.

In addition, the controller 160 includes the lighting device 130 including any one of the first to fourth wavelengths 710 to 740 based on the data on the temperature, humidity, and the concentration of carbon dioxide collected by the sensing unit 150. It can be controlled to generate artificial light.

7 is a conceptual diagram illustrating a smart plant cultivation system equipped with a speaker for outputting sound according to an exemplary embodiment.

Referring to FIG. 7, a smart plant cultivation system 100 in which a speaker 170 for outputting sound is combined is shown. The controller 160 of the smart plant cultivation system 100 may select and output any one of a plurality of sounds based on the data measured by the sensing unit 150.

As one of the sound output methods, the speaker 170 may output a plurality of sounds for each growth period of the plant 2. For example, when the plant 2 is in the germination or early stage, the speaker 170 may output a first sound that aids in the germination of the plant 2. The first sound may be music having a slow tempo. In addition, when the plant 2 is in the growing season, the speaker 170 may output a second sound that helps the plant 2 grow. The second sound may be music having a fast tempo.

As another method of outputting sound, the speaker 170 may output a plurality of sounds according to the sunlight time. For example, when there is no illuminance after sunset (at night), the controller 160 may determine that the illuminance is 0 (zero) or less. The controller 160 may control the speaker 170 to output a first sound having a slow tempo in order to slow the metabolic rate of the plant 2. In addition, when there is an illuminance after sunrise (weekly), the controller 160 may determine that the illuminance exceeds 0 (zero). The controller 160 may control the speaker 170 to output a second sound having a fast tempo in order to speed up the metabolism of the plant 2.

Terms such as "include", "consist of", or "have" described above, unless otherwise stated, mean that the corresponding component may be included, and thus other components are not excluded. It should be interpreted as being able to further include other components. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms generally used, such as terms defined in the dictionary, should be interpreted as being consistent with the meaning in the context of the related technology, and are not interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

Claims (5)

A solar panel that condenses sunlight and converts the sunlight into electrical energy;
A power storage unit for storing the electric energy;
A driving unit for adjusting the position of the solar panel;
A sensing unit measuring the illuminance of the sunlight;
A lighting device receiving power from the power storage unit, including a light emitting device, and irradiating artificial light to the plant through the light emitting device; And
Including; a control unit for controlling the position of the solar panel through the driving unit according to the measured illuminance,
When the measured illuminance is less than a first threshold value, the control unit moves the solar panel to a first position through the driving unit so that the sunlight enters the plant,
The lighting device stops irradiating the plant with the artificial light when the measured illuminance is less than the first threshold value.
Smart plant cultivation system utilizing solar power generation, characterized by. The method of claim 1,
When the measured illuminance is greater than or equal to the first threshold and less than a second threshold, the controller moves the solar panel to a second position through the driving unit so that the sunlight enters the solar panel,
The power storage unit converts and stores the energy of the incident sunlight into first power,
The lighting device receives the first power and irradiates the artificial light to the plant,
The second threshold is greater than the first threshold
Smart plant cultivation system utilizing solar power generation, characterized by. The method of claim 2,
When the measured illuminance is greater than or equal to the second threshold value, the control unit moves the solar light to a second position of the solar panel through the driving unit so that the sunlight enters the solar panel,
The lighting device is continuously supplied with the first power to keep irradiating the artificial light to the plant,
The power storage unit converts and stores energy of the incident sunlight into second power.
Smart plant cultivation system utilizing solar power generation, characterized by. The method of claim 3,
Including; a power control unit for supplying power to the lighting device by stabilizing the power of the power storage unit,
The control unit controls a power control unit to supply second power from the power storage unit to the lighting device when the measured illuminance has a value of 0 (ZERO),
The lighting device is to irradiate the plant with the artificial light by receiving the first or second power
Smart plant cultivation system utilizing solar power generation, characterized by. The method of claim 1,
Including a support structure for supporting the solar panel,
The lighting device is mounted around the support structure
Smart plant cultivation system utilizing solar power generation, characterized by.

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