KR102650045B1 - Hydroponic cultivation system using smart farms - Google Patents

Abstract

The present invention relates to a hydroponic cultivation system using a smart farm that controls the supply of nutrient solution in a hydroponic cultivation unit with a serial connection structure and is easy to manage later. The purpose of the present invention is to determine the degree of opening and closing of the cultivation pipe at the inlet or outlet of each cultivation pipe. The nutrient solution supply and discharge amount can be controlled by installing a flow control unit that can be controlled, and a detachable drainage control device is provided at the bottom of each re-pipe. When the drainage control device is separated from each re-pipe, the drainage path formed at the bottom is The goal is to provide a hydroponic cultivation system that facilitates the maintenance of each cultivation pipe by allowing the nutrient solution to be easily discharged.

Description

Hydroponic cultivation system using smart farms {Hydroponic cultivation system using smart farms}

The present invention relates to a hydroponic cultivation system using a smart farm, and more specifically, to a hydroponic cultivation system using a smart farm that is easy to control and later manage the nutrient solution supply to the hydroponic cultivation unit with a series connection structure.

A cultivation method, also commonly referred to as hydroponic cultivation or hydroponic cultivation, is a method of cultivating non-hydroponic crops in a soilless state, using a culture medium in which elements necessary for crop growth are diluted in water.

Because hydroponic cultivation does not require soil, the cost is very low compared to general soil cultivation, and because it is grown indoors, it is relatively less affected by the weather, and because the environment is artificially created, the occurrence of various pests and diseases can be reduced. In addition, the working environment is relatively comfortable, and the appropriate nutrient solution suitable for the crop's physiology can be continuously supplied, enabling continuous harvesting as the crop grows stably.

Recently, with the development of industrial technology, crop cultivation methods are changing from traditional agricultural methods to smart farms that combine various information technologies, and the growth of these smart farms is accelerating. However, hydroponic cultivation requires a lot of initial facility costs, and if the supplied water is contaminated, there is a risk that pests and diseases will spread to all crops very quickly.

Therefore, since the water quality of water or nutrient solution must be thoroughly managed, the water quality, concentration of nutrient solution, water level, etc. must be checked every day and caution must always be exercised, which has the disadvantage of making the work difficult. Accordingly, many different types of hydroponic cultivation devices have been disclosed to make hydroponic cultivation easier.

In the column structure hanging multi-layer hydroponic cultivator of Prior Document 1, a plurality of cultivation frames are formed with a certain height difference between the vertical column frames provided on both sides, and the nutrient solution is supplied to these cultivation frames by pumping using a nutrient solution pump from the nutrient solution storage tank. A configuration is being proposed in which it is supplied to the cultivation frame at the top and discharged from the cultivation frame at the bottom.

However, the crops that can be grown hydroponically are very diverse, and not only do each seed have different growth conditions, but the amount of nutrient solution needed varies depending on the growth rate, so a smart hydroponic cultivation device that can control the nutrient supply for each layer is used. Research on palm is needed.

1. Republic of Korea Patent Publication No. 10-2012-0128526

The present invention was devised to solve the above problems. The purpose of the present invention is to install a flow rate controller at the inlet or outlet of each re-pipe to control the degree of opening and closing of the re-pipe, thereby controlling the amount of nutrient solution supply and discharge. A hydroponic cultivation system can be provided.

In addition, a detachable drainage control device is provided at the bottom of each re-pipe, so that when the drainage control device is separated from each re-pipe, the nutrient solution can be easily discharged through the drainage channel formed at the bottom, making it easy to maintain each re-pipe. A hydroponic cultivation system can be provided.

In the hydroponic cultivation device of the present invention, a support frame of a predetermined height and a body frame of a predetermined height are installed alternately along the height direction, a pair of vertical frames installed to face each other, and an upper part installed between the tops of the facing vertical frames. A frame, a re-pipe installed between the facing body frames and having at least one planting part on which plants are planted on the upper surface, a lighting part installed on an upper part of the re-pipe and supplying light to plants planted in the re-pipe, A nutrient solution tank in which the nutrient solution supplied to the re-piping is stored, one end of which is coupled to the nutrient solution tank, passes through one side of the vertical frame and the upper frame, and the other end is attached to the body frame located at the uppermost part of the other side of the vertical frame. A nutrient solution supply pipe installed to supply nutrient solution, a nutrient solution recovery pipe installed on the same vertical line and between the upper and lower adjacent body frames to form a flow path through which the nutrient solution moves downward, a lower hole at the bottom of the body frame and the lower part of the body frame. A lower hole opening and closing part is further formed to control the opening and closing of the hole, and a nutrient solution recovery pipe is fitted into the lower hole, and a flow path is formed so that the nutrient solution supplied to the body frame is supplied to the re-piping, but first, the body frame It is coupled to, and the other end includes a connection frame coupled to the re-pipe and a flow rate adjuster installed on the flow path of the connection frame, and controlling the degree of opening and closing of the flow path, and at least one of the re-pipe is formed in the lower part. It includes a drain passage in the form of a through hole and a drainage control device in the form of a stopper, a lid, or a valve that controls the opening and closing of the drainage passage, and is fitted into the drainage passage 330, depending on the plants planted in the cultivation pipe. The flow rate of the nutrient solution supplied to the cultivation pipe or the flow rate of the nutrient solution discharged from the cultivation pipe is controlled by a control device, and a database storing growth information of plants planted in the hydroponic cultivation device, the hydroponic cultivation device, or the operator's terminal It further includes a communication unit that communicates with, a water level sensor installed in each of the plurality of re-pipes to measure the water level of the nutrient solution supplied to the re-pipe, and a control unit that controls the operation of the hydroponic cultivation device, wherein the control unit is predetermined. The hydroponic cultivation device is operated so that the nutrient solution contained in the re-pipe is automatically circulated every hour.
In addition, the re-pipe is formed extending from the edge of the bottom, and is characterized in that it is inclined in the inward direction to form a sedimentation area whose area becomes narrower toward the bottom.
In addition, the drain passage is formed in the lower part of the settling portion, and when foreign matter in the re-piping settles in the settling portion, the discharge control device opens the drainage passage to discharge the foreign matter to the outside.

In addition, in the hydroponic cultivation system using the hydroponic cultivation device of the present invention, the control unit receives growth information according to the plants planted in the cultivation pipe from the database, and the growth information It is characterized in that the degree of opening and closing of the connection frame is adjusted by controlling the operation of the flow rate control unit so that the nutrient solution is supplied at the level of the included nutrient solution.
In addition, the control unit is characterized in that it controls the nutrient solution contained in the re-pipe to be discharged or to supply more nutrient solution to the re-pipe according to the value measured from the water level sensor installed in the re-pipe.

The hydroponic cultivation system using the smart farm of the present invention with the above configuration can control the amount of nutrient solution supply and discharge by installing a flow rate control unit that can control the opening and closing degree of the cultivation pipe at the inlet or outlet of each cultivation pipe.

In addition, a detachable drainage control device is provided at the bottom of each re-pipe, so that when the drainage control device is separated from each re-pipe, the nutrient solution can be easily discharged through the drainage channel formed at the bottom, making it easier to maintain each re-pipe. do.

1 is a front view of a hydroponic cultivation device according to an embodiment of the present invention
Figure 2 is a front cross-sectional view of a hydroponic cultivation device according to an embodiment of the present invention
Figure 3 is an enlarged view of the vertical frame front section of a hydroponic cultivation device according to an embodiment of the present invention
Figure 4 is a front cross-sectional view of a hydroponic cultivation device according to an embodiment of the present invention
Figure 5 is a cross-sectional plan view of a hydroponic cultivation device according to an embodiment of the present invention.
Figure 6 is an enlarged front cross-sectional view of the re-piping of the hydroponic cultivation device according to an embodiment of the present invention
Figure 7 is a block diagram of a hydroponic cultivation system according to an embodiment of the present invention
Figure 8 is an enlarged front view of the hydroponic cultivation device of the hydroponic cultivation system according to an embodiment of the present invention
Figure 9 is an enlarged front cross-sectional view of the hydroponic cultivation device of the hydroponic cultivation system according to a modified example of an embodiment of the present invention
Figure 10 is an enlarged front cross-sectional view of a hydroponic cultivation device of a hydroponic cultivation system according to another modification of an embodiment of the present invention

Hereinafter, an embodiment of the present invention described above will be described in detail with reference to the drawings.

Figure 1 shows a front view of a hydroponic cultivation device according to an embodiment of the present invention. As shown in Figure 1, the hydroponic cultivation device 10 of the present invention is formed to extend in the vertical direction and is formed between the vertical frames 100 and both vertical frames 100 formed on both sides at a predetermined distance, It includes an upper frame 130 installed between the upper ends of both vertical frames 100.

The vertical frame 100 is formed by alternately combining a body frame 110 of a predetermined height and a support frame 120 fitted into the body frame 110, and a pedestal is provided at the bottom of the support frame 120 located at the bottom. is combined so that it can stand stably on the ground, and an upper frame 130 is installed between the support frame 120 located at the top and the support frame 120 so as to be horizontal with the ground. As the cultivation pipes 300 in which plants are planted are installed between the facing body frames 110, the cultivation pipes 300 are installed in multiple stages at predetermined intervals, and at this time, the cultivation pipes 300 installed in multiple stages have a predetermined interval. is the height of the support frame 120 installed between the body frame and the body frame.

The hydroponic cultivation device 10 includes a nutrient solution tank 160 storing the nutrient solution supplied within a plurality of re-piping 300, a nutrient solution supply pipe 140 for supplying the nutrient solution stored in the nutrient solution tank 160 to the re-piping 300, and It further includes a nutrient solution recovery pipe 150 through which the nutrient solution discharged from the re-pipe 300 is returned to the nutrient solution tank 160, and the nutrient solution supply pipe 140 and the nutrient solution recovery pipe 150 are connected to the vertical frame 100 and the upper part. Formed inside the frame 130, it is possible to provide a hydroponic cultivation device 10 with a clean aesthetic when viewed from the outside.

At this time, the nutrient solution tank 160 stores the nutrient solution for supply to the re-pipe 300 and is in communication with the nutrient solution supply pipe 140, and the nutrient solution recovery pipe 150 to recover the nutrient solution discharged from the re-pipe 300. A water tank in communication with may be provided separately. A filter is installed in the water tank in communication with the nutrient solution recovery pipe 150 to remove impurities contained in the nutrient solution supplied from the nutrient solution recovery pipe 150, and the water tank in which the nutrient solution from which impurities are removed is in communication with the nutrient solution supply pipe 140. The nutrient solution can be supplied for reuse.

Lastly, the hydroponic cultivation device 10 further includes a lighting unit 400 installed at the top of each cultivation pipe 300 to supply light to the plants planted in the cultivation pipe 300. The height and illuminance of the lighting unit 400 are adjustable.

Figure 2 shows a front cross-sectional view of a hydroponic cultivation device according to an embodiment of the present invention. As shown in FIG. 2, the support frame 120, the body frame 110, and the upper frame 130 have an internal space and are formed in the shape of a pipe with a circular or polygonal cross-section. For convenience of explanation, the vertical frame on the right is called the first vertical frame, and the vertical frame on the left is called the second vertical frame.

The nutrient solution supply pipe 140 sequentially passes through the first vertical frame 100a and the upper frame 130 on the right and extends to the second vertical frame 100b on the left. Nutrient solution is supplied to the second body frame 110b located at the top. At this time, the nutrient solution supply pipe 140 is equipped with a pressure pump to allow the nutrient solution to move smoothly.

When the nutrient solution is supplied to the second body frame 110b located at the top, the nutrient solution is supplied to the re-pipe 300 coupled to the second body frame 110b located at the top, and the facing first body frame 110a The nutrient solution moves to In other words, the nutrient solution moves from left to right. That is, the nutrient solution moves from the second body frame 110b on the left to the first body frame 110a on the right through the re-pipe 300. The nutrient solution moved to the first body frame (110a) located on the left side of the same height has one end fitted into the lower part of the first body frame (110a) and the other end positioned below the first body frame (110). It moves along the nutrient solution recovery pipe 150 fitted into the upper part of the body frame 110c so that the nutrient solution can be supplied to the re-pipe 300 coupled to the third body frame 110c.

That is, the hydroponic cultivation device of the present invention moves the nutrient solution along the direction of the arrow so that the nutrient solution is supplied in a zigzag form from the re-pipe 300 located at the top to the re-pipe 300 located at the bottom. The specific configuration of the body frame 110 will be described in more detail with reference to FIG. 3.

The cultivation pipe 300 is installed parallel to the ground and plants are planted. In order to grow plants, a nutrient solution must be supplied to the inside of the cultivation pipe 300 to maintain a predetermined water level within the cultivation pipe 300. The same plants may be planted in each cultivation pipe 300, but different plants may be planted in each cultivation pipe 300. When different plants are planted, the water level of the nutrient solution is different depending on the type of plant planted in the cultivation pipe 300, so a flow rate controller 210 that can control the supply and discharge amount of the nutrient solution is installed in each cultivation pipe 300. ) is installed every time. This will be explained in more detail with reference to FIG. 5.

Figure 3 shows an enlarged view of the front cross-section of the vertical frame of the hydroponic cultivation device according to an embodiment of the present invention. The body frame 110 has a cylindrical or polygonal pillar shape, and as shown in FIG. 3, the upper edge of the body frame 110 protrudes above a predetermined height and a support frame 120 is provided on the upper part of the body frame 110. The bottom of the body frame 110 has a corner area that protrudes below a predetermined height so that the support frame 120 can be fitted into the lower part of the body frame 110. A coupling portion 114 is formed on one side of the body frame 110 to fit into the re-pipe 300.

The body frame 110 is formed with an insertion portion 113 that penetrates the upper and lower surfaces. The insertion portion 113 is intended to allow the nutrient solution supply pipe 140 to be installed while passing through the body frame 110 and is made of soft material. It can also perform the function of supporting the nutrient solution supply pipe 140. An upper hole 111 in the form of a through hole is formed on the upper surface of the body frame 110 to receive the nutrient solution discharged from the end of the nutrient solution supply pipe 140, and even if a large amount of nutrient solution is supplied to the body frame 110, the upper hole 111 By allowing some of the nutrient solution to overflow, the pressure of the body frame 110 is maintained constant.

A lower hole 112 and a lower hole opening/closing unit 116 that controls the opening and closing of the lower hole 112 are formed in the lower part of the body frame 110, and a nutrient solution recovery pipe 150 is fitted into the lower hole 112. . That is, the body frame 110 into which the nutrient solution recovery pipe 150 is fitted has the lower hole 112 opened by the lower hole opening and closing part 116, and the body frame 110 into which the nutrient solution recovery pipe 150 is not fitted. ) maintains the lower hole 112 in a closed state by the lower hole opening/closing unit 116. The nutrient solution recovery pipe 150 fitted into the lower hole 112 of the body frame 110 extends along the support frame 120 and is inserted into the upper hole 111 of the body frame 110 located immediately below. It forms a flow path that allows the nutrient solution to move from top to bottom.

Figure 4 shows a plan cross-sectional view of a hydroponic cultivation device according to an embodiment of the present invention. As shown in FIG. 4, a plurality of cultivation pipes 300 are installed in series on one body frame 110, and each cultivation pipe 300 is provided with a plurality of planting units 310 so that plants can be planted. is installed. As described above, a coupling portion 114 for coupling with the re-piping 300 is formed on the side of the body frame 110. A plurality of coupling portions 114 are formed on the side of the body frame 110 and have the same height. The re-pipe 300 having can be installed in series.

One end of the pipe-shaped connection frame 200 is fitted into the coupling portion 114, and the re-piping 300 is fitted into the other end of the connection frame 200. For convenience of explanation, the re-piping located at the top of FIG. 5 is referred to as the first re-piping 300a, the re-piping located in the center is referred to as the second re-piping 300b, and the re-piping located at the bottom is referred to as the third re-piping. It is called re-piping (300c).

The nutrient solution discharged from the end of the nutrient solution supply pipe 140 flows into the second body frame 110b through the upper hole 111 of the second body frame 110b. At this time, a flow guide portion 115 in the form of a wall with a predetermined thickness is formed in the second body frame 110b to guide the flow direction of the nutrient solution. The nutrient solution introduced into the second body frame (110b) by the flow guide unit 115 moves to the first connection frame (200a) connected to one end of the first re-piping (300a) and one end of the first re-piping (300a). It moves in the direction of the other end, and moves to the first body frame 110a through the second connection frame 200b coupled to the other end of the first re-piping 300a.

A flow guide unit 115 is also installed on the first body frame 110a, and the nutrient solution supplied to the first body frame 110a by the flow guide unit 115 moves to the third connection frame 200c. 2 It is supplied to the re-piping (300b). The nutrient solution supplied to the second re-piping 300b passes through the fourth connection frame 200d and moves to the second body frame 110, and is controlled by the flow guide portion 115 of the second body frame 110b. 5 It moves to the connection frame (200e) and is supplied to the third re-piping (300c). The nutrient solution supplied to the third re-piping 300c passes through the sixth connection frame 200f and is supplied to the first body frame 110a, and is supplied to the first body frame 110a by the flow guide portion 115 formed in the first body frame 110a. It moves to the body frame located below the first body frame 110a along the nutrient solution recovery pipe 150 coupled to the lower hole 112 of the first body frame 110a.

That is, in the hydroponic cultivation device 10 of the present invention, the nutrient solution moves in a zigzag form through the re-pipe 300 of different heights and is supplied to each re-pipe 300, and at the same time, the nutrient solution is supplied to each re-pipe 300 and is installed in series at the same height. ) are characterized by moving in a zigzag pattern and supplying nutrient solution sequentially.

At this time, a flow rate controller 210 is formed in the connection frame 200 to control the degree of opening and closing of the connection frame 200, and the flow rate controller 210 receives an external signal and operates automatically. With reference to FIG. 5 , the flow rate control unit 210 installed on the connection frame 200 will be described in more detail.

Figure 5 shows an enlarged front cross-sectional view of the re-piping of the hydroponic cultivation device according to an embodiment of the present invention. As shown in FIG. 5, a flow rate controller 210 is installed on the flow path of the connection frame 200. The flow rate control unit 210 is used to adjust the degree of opening and closing of the connection frame 200.

The plants planted in each cultivation pipe 300 may be the same or different, and each plant may have a different growth environment for each type. For example, assume that plant A is planted in the cultivation pipe 300 on the first floor, plant B is planted in the cultivation pipe 300 on the second floor, and plant C is planted in the cultivation pipe 300 on the third floor.

Plant A, Plant B, and Plant C have different growth environments, and the concentration and water level of the nutrient solution are different accordingly, so the inflow and outflow rates of the nutrient solution must be controlled. In order to control this, the present invention installs a flow rate control unit 210 on the flow path of the connection frame 200, and adjusts the degree of opening of the flow path of the connection frame 200 to adjust the flow rate flowing into the re-pipe 300 and the cultivation. The flow rate discharged from the pipe 300 can be easily adjusted. The flow rate control unit 210 of the present invention may be in the form of a plate that moves in the vertical direction, or may be in the form of a valve capable of controlling the flow rate.

Figure 6 shows a front cross-sectional view of a hydroponic cultivation device according to an embodiment of the present invention. The drawing of FIG. 2 shows an example in which the nutrient solution recovery pipe 150 is coupled only to the lower hole 112 of the body frame 110 through which the nutrient solution flows downward. However, as shown in FIG. 6, the nutrient solution recovery pipe 150 may be coupled to the lower hole 112 of all body frames 110.

Depending on the direction of movement of the nutrient solution, the lower hole 112 is opened by the lower hole opening/closing unit 116 and the flow rate control unit 210 or the opening of the connection frame 200 is controlled, so that the nutrient solution is distributed evenly throughout the re-piping 300. In order to be supplied, the flow rate control unit 210 and the lower hole opening/closing unit 116 operate so that the nutrient solution moves in a zigzag form, thereby opening the connection frame 200 and the lower hole 112.

When the nutrient solution needs to be additionally supplied only to the uppermost re-pipe 300, the lower hole 112 of the second body frame 110b is prevented from being opened by the lower hole opening/closing unit 116, as shown in FIG. 6A. do.

Next, the flow path of the connection frame 200 is opened by the flow rate control unit 210 installed on the connection frame 200 connected to the re-piping 300 located at the top, and the re-piping 300 located at the top is opened. The nutrient solution is supplied to and the lower hole 112 of the second body frame 110b is closed by the lower hole opening and closing part 116 to prevent the nutrient solution from moving downward.

Therefore, the opening and closing of the lower hole 112 and the connection frame 200 is controlled by the lower hole opening and closing unit 116 and the flow rate control unit 120, and the nutrient solution is selectively supplied only to the re-pipe 300 located at the top. It can be done as much as possible.

When the nutrient solution needs to be additionally supplied only to the centrally installed re-pipe 300, the lower hole 112 of the second body frame 110b is opened by the lower hole opening and closing part 116, as shown in FIG. 6b, The lower hole 112 of the fourth body frame 110d is prevented from being opened by the lower hole opening/closing unit 116.

Next, the connection frame 200 of the re-piping 300 located at the top is prevented from being opened by the flow rate control unit 210 installed on the connection frame 200 connected to the re-piping 300 located at the top. do.

The nutrient solution supplied to the second body frame 110b is coupled to the lower hole 112 because the lower hole 112 is open and the connection frame 200 coupled to the second body frame 110b is blocked. It moves to the fourth body frame (110d) along the nutrient solution recovery pipe (150).

The lower hole 112 of the fourth body frame 110d is not opened by the lower hole opening/closing unit 116, and the flow rate control unit 210 of the connection frame 200 connected to the fourth body frame 110d is connected to the connection frame. Because 210 is open, the nutrient solution supplied to the fourth body frame 110d is supplied to the re-piping 300 through the connection frame 200, and because the lower hole 112 is closed, the nutrient solution flows downward. Avoid moving.

Therefore, the opening and closing of the lower hole 112 and the connection frame 200 is controlled by the lower hole opening and closing unit 116 and the flow rate control unit 210 so that the nutrient solution is selectively supplied only to the centrally located re-pipe 300. can do.

When the nutrient solution needs to be additionally supplied only to the lowest-installed re-piping 300, the connection frame 200 connected to the second body frame 110b and the fourth body frame 110d, as shown in FIG. 6C, is connected to the flow rate. The flow path is prevented from being opened by the adjusting unit 210.

Next, the lower hole 112 is opened by the lower hole opening and closing portion 116 of the second body frame 110b and the fourth body frame 110d. The nutrient solution moves from top to bottom along the nutrient solution recovery pipes (150b, 150d) coupled to the lower hole, so that the nutrient solution is immediately supplied to the sixth body frame (110f), and the connection frame (200) connected to the sixth body frame (110f) Through this, the nutrient solution can be quickly supplied to the re-pipe 300 located at the bottom.

In other words, controlling the operation of the lower hole opening/closing unit 116 and the flow rate control unit 210 determines whether the nutrient solution moves downward along the nutrient solution recovery pipe 150 or from left to right or right to left along the connection frame 200. Since movement can be easily controlled, the nutrient solution can be easily supplied to a single selected re-pipe.

Figure 7 shows a block diagram of a hydroponic cultivation system according to an embodiment of the present invention. As shown in FIG. 7, the hydroponic cultivation system is electrically connected to and capable of communicating with the hydroponic cultivation device 10, and the hydroponic cultivation system includes a hydroponic cultivation device 10, a database 700, a communication unit 800, and a water level sensor. It includes 600 and a control unit 500.

The database 700 stores information on plant growth, such as the concentration of nutrient solution suitable for the growth of each plant, the water level of the nutrient solution, and the intensity of lighting. The communication unit 800 is for sending a notification to the operator, and is used to notify the hydroponic cultivation device 10 when the nutrient solution in the nutrient solution tank 160 is below a certain amount, the supply and recovery of the nutrient solution is not smooth, and the lighting unit 400 is not operating properly. If an abnormality occurs, a notification is sent to the worker's terminal so that the worker can inspect the hydroponic cultivation device (10).

The water level sensor 600 is used to measure the water level of the nutrient solution and is installed in the nutrient solution tank 160 and each re-pipe 300. Since the nutrient solution tank 160 stores the nutrient solution to be supplied to the re-piping 300, the nutrient solution must be stored above a certain level. When the water level sensor 600 measures the level below a certain level, the communication unit 800 Send a notification to the terminal.

In addition, a water level sensor 600 is installed in the re-piping 300 to determine whether the nutrient solution has been supplied to a predetermined water level. If the water level is low, it communicates with the control unit 500 to supply more nutrient solution, and if the water level is high, it communicates with the control unit 500 to supply more nutrient solution. Allow the nutrient solution to drain. At this time, the configuration for discharging the nutrient solution will be described later with reference to FIG. 8.

The plants planted in each cultivation pipe 300 installed on each floor may be the same or different, and each plant may have a different growth environment. For example, assume that plant A is planted in the cultivation pipe 300 on the first floor, plant B is planted in the cultivation pipe 300 on the second floor, and plant C is planted in the cultivation pipe 300 on the third floor. As described above, information on each plant is stored in the database 700.

The control unit 500 is for controlling the operation of the hydroponic cultivation device 10 based on information stored in the database 700, and controls the operation of the lighting unit 400 to change the illuminance of the lighting, and the flow rate control unit 210 ) to control the operation of the nutrient solution to control the amount of nutrient solution supplied to the re-pipe 300 and the amount of nutrient solution discharged from the re-pipe 300.

Each re-pipe 300 can be formed to receive purified water from the outside, and this is to control the concentration of the nutrient solution. At this time, it is preferable that the supply amount of purified water is also determined by the control unit 500 based on the nutrient solution concentration suitable for plant growth stored in the database 700.

Figure 8 shows an enlarged front view of the re-piping of the hydroponic cultivation device according to an embodiment of the present invention. As shown in FIG. 8, at least one drainage control device 331 that can be opened and closed is installed at the lower part of the re-pipe 300. A drainage passage 330 in the form of an aperture with a predetermined diameter is formed in the lower part of the re-pipe 300, and the drainage control device 331 controls the opening and closing of the drainage passage 330. At this time, the drainage control device 331 may be formed in any shape that can open and close the drainage passage 330, such as a stopper, lid, or valve shape that fits into the drainage passage 330.

Normally, the drainage passage 330 is blocked from opening by the drainage control device 331, and when necessary, the drainage control device 331 is separated from the drainage passage 330 by an external force to open the drainage passage 330. . Mainly, when the drainage passage 330 is opened, the drainage control device 331 is opened from the drainage passage 330 when cleaning the re-pipe 300.

When the drainage channel 330 is opened, the nutrient solution in the re-pipe 300 is discharged through the drain channel 330, so the inside of the re-pipe 300 can be quickly emptied. In the past, the nutrient solution contained in the re-pipe 300 had to be discharged through the nutrient solution recovery pipe 150, or if the re-pipe 300 was separable from the connection frame 200, the re-pipe 300 had to be separated and cleaned. There was a problem that it took a lot of time and labor.

However, in the hydroponic cultivation device 10 of the present invention, when the drainage control device 331 provided at the bottom of the cultivation pipe 300 is controlled, the drainage passage 330 is opened and the nutrient solution is discharged through the drainage passage 330. Therefore, there is an effect that the nutrient solution in the re-pipe 300 can be quickly discharged without separating the re-pipe 300 from the connection frame 200.

Figure 9 shows an enlarged front cross-sectional view of the re-piping of a hydroponic cultivation device according to a modified example of an embodiment of the present invention. As shown in (a) of FIG. 9, the cultivation pipe 300 of the hydroponic cultivation device 10 has a funnel-shaped sedimentation portion 320 formed at the bottom that narrows downward.

A drainage passage 330 is formed at the bottom of the settling portion 320, and a drainage control device 331 is installed to control the opening and closing of the drainage passage 330. If foreign matter flows into the cultivation pipe 300, it may contaminate the nutrient solution, and if the nutrient solution is contaminated, it may harm the growth of the plant, so the foreign matter must be removed. However, discharging all of the nutrient solution in the re-pipe 300 to remove foreign substances and then supplying the nutrient solution again is cumbersome and time-consuming.

In the present invention, in order to quickly remove only foreign substances in the re-piping 300, a settling portion 320 that becomes narrower toward the bottom is provided. The settling part 320 is formed in the shape of a funnel, and foreign substances settle around the drainage passage 330 formed at the bottom of the settling part 320. When foreign substances settle, the drainage control device 331 is controlled to open the drainage passage 330 to discharge only a portion of the nutrient solution containing the foreign substances. In addition, as described above with reference to FIG. 6, when cleaning the re-pipe 300, the drainage control device 331 can be controlled to open the drain passage 330 so that all the nutrient solution in the re-pipe 300 is discharged. .

As shown in (b) of FIG. 9, a plurality of sediment parts 320 may be formed at the lower part of the re-pipe 300. A drainage control device 331 is installed in each settling section 320 to control the opening and closing of the drainage passage 330 and the drainage passage 330, and a drainage control device ( 331) are each controlled so that part of the nutrient solution containing foreign substances can be selectively discharged.

The drainage control device 331 may be controlled by an operator, but is electrically connected to the control unit 500 and receives a signal transmitted from the control unit 500 to automatically control the opening and closing of the drainage passage 330. It is preferable that a separate, detachable discharge hose (not shown) is connected to the drain passage 330 so that the nutrient solution containing foreign substances is discharged separately.

Therefore, the re-piping 300 of the hydroponic cultivation device 10 of the present invention is a hydroponic cultivation device 10 that makes it easy to manage the water quality of the nutrient solution and clean the re-pipe 300 as a sedimentation part 320 is formed at the bottom. can be provided. In addition, when the water level value of the nutrient solution measured from the water level sensor 600 described with reference to FIG. 7 is higher than the standard, the drainage control device 331 opens the drainage passage 330 for a predetermined time to maintain the nutrient solution at an appropriate water level. It can be controlled so that

Figure 10 shows an enlarged front cross-sectional view of the re-piping of a hydroponic cultivation device according to another modification of an embodiment of the present invention. As shown in FIG. 9, an outside air inlet 340 communicating with the re-pipe 300 is formed outside the re-pipe 300. The outside air inlet 340 includes an outside air inlet flow path 341 and a blowing fan 342 formed on the outside air inlet flow path 341 to allow outside air to flow into the outside air inlet flow path 341, and the blowing fan 342 In addition, a pump that applies a predetermined pressure to the outside air may be further included.

The reason why the outside air inlet 340 is formed in the re-pipe 300 is to inject external air into the re-pipe 300. By injecting external air into the re-pipe 300, a vortex can be formed in the nutrient solution. Since the nutrient solution in the re-pipe 300 is in a stationary state without flow, it may rot if there is no flow for a long time. To prevent this, external air can be injected into the nutrient solution to generate vortices to prevent spoilage of the nutrient solution.

In addition, external air with a predetermined pressure can be supplied to remove foreign substances attached to the roots of plants, and diluted elements in the nutrient solution can be mixed to maintain a uniform concentration.

The outside air inlet 340 of the present invention is electrically connected to the control unit 500 and receives a signal transmitted from the control unit 500, so that the operation of the outside air inlet 340 can be automatically controlled, and a separate oxygen tank is provided. It can be connected to supply additional oxygen into the cultivation pipe 300 to help the plant's root respiration.

The technical idea of the present invention should not be interpreted as limited to the above-described embodiments. Not only is the scope of application diverse, but various modifications can be made at the level of those skilled in the art without departing from the gist of the present invention as claimed in the claims. Therefore, such improvements and changes fall within the scope of protection of the present invention as long as they are obvious to those skilled in the art.

10 hydroponic growing device
100 vertical frames
110 body frame
111 upper hall
112 lower hole
113 insertion part
114 joint
115 floating guide part
116 lower hole opening and closing part
120 support frame
130 upper frame
140 Nutrient solution supply pipe
150 Nutrient solution recovery pipe
160 Nutrient solution tank
200 connection frames
210 flow control unit
300 re-piping
310 Plantation Department
320 sedimentation unit
330 multiple euros
331 Drainage Control Unit
340 Outside air inlet
341 Outside air inflow path
342 blowing fan
400 lighting unit
500 control unit
600 water level sensor
700 database
800 Communications Department

Claims (9)

A pair of vertical frames in which a support frame of a predetermined height and a body frame of a predetermined height are installed alternately along the height direction and are installed to face each other;
an upper frame installed between upper ends of the facing vertical frames;
A planting pipe installed between the facing body frames and having at least one planting portion on the upper surface of which plants are planted;
a lighting unit installed at the top of the cultivation pipe and supplying light to plants planted in the cultivation pipe;
A nutrient solution tank in which the nutrient solution supplied to the re-piping is stored;
A nutrient solution supply pipe, one end of which is coupled to the nutrient solution tank, passing through one side of the vertical frame and the upper frame, and the other end of which is connected to supply the nutrient solution to the body frame located at the uppermost part of the other side of the vertical frame;
It includes a nutrient solution recovery pipe that is installed on the same vertical line and is installed between the body frames adjacent up and down to form a flow path through which the nutrient solution moves downward,
A lower hole and a lower hole opening and closing portion for controlling opening and closing of the lower hole are further formed at the lower part of the body frame, and a nutrient solution recovery pipe is fitted into the lower hole,
A connection frame forming a flow path so that the nutrient solution supplied to the body frame is supplied to the re-pipe, one end of which is coupled to the body frame and the other end of which is coupled to the re-pipe; and
It includes a flow rate controller installed on the flow path of the connection frame and controlling the degree of opening and closing of the flow path,
The re-piping includes at least one through-hole drain passage formed in the lower portion and a drain control device in the form of a stopper, lid, or valve that controls opening and closing of the drain passage, and is fitted into the drain passage,
Depending on the plants planted in the re-piping, the flow rate of the nutrient solution supplied to the re-pipe or the flow rate of the nutrient solution discharged from the re-pipe is controlled by a control device,
A database storing growth information of plants planted in a hydroponic cultivation device;
A communication unit that communicates with the hydroponic cultivation device or the operator's terminal;
a water level sensor installed in each of the plurality of re-pipings to measure the water level of the nutrient solution supplied to the re-piping; and
It further includes a control unit that controls the operation of the hydroponic cultivation device,
The control unit is a hydroponic cultivation device characterized in that it operates the hydroponic cultivation device so that the nutrient solution contained in the re-pipe is automatically circulated at predetermined times.
delete delete According to paragraph 1,
The re-piping is,
A hydroponic cultivation device characterized in that it extends from the edge of the bottom, and is formed with a slope in the inward direction, forming a sedimentation area whose area becomes narrower toward the bottom.
The method of claim 4, wherein the drainage passage is,
It is formed in the lower part of the precipitation part,
A hydroponic cultivation device, characterized in that when foreign matter settles in the sedimentation portion within the re-pipe, the discharge control device opens the drainage passage to discharge the foreign matter to the outside.
delete In the hydroponic cultivation device according to any one of claims 1, 4, and 5,
The control unit,
Receiving growth information according to the plants planted in the re-pipe from the database, and controlling the operation of the flow control unit to supply the nutrient solution at the level of the nutrient solution included in the growth information to adjust the degree of opening and closing of the connection frame. A hydroponic cultivation system using a smart farm.
The method of claim 7, wherein the control unit,
A hydroponic cultivation system using a smart farm, characterized in that it is controlled to discharge the nutrient solution contained in the re-pipe or to supply more nutrient solution to the re-pipe according to the value measured from the water level sensor installed in the re-pipe.
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