KR102541371B1 - A smart hydroponics with increased efficiency - Google Patents

Abstract

The present invention relates to a smart hydroponic cultivation apparatus with increased efficiency, comprising: a culture medium supply tank in which a first culture medium and a second culture medium are supplied and mixed; And a cultivation bed to which the culture solution is supplied from the culture solution supply tank, and relates to a smart hydroponic cultivation device in which air is supplied to the culture solution during the process in which the culture solution located in the culture solution supply tank flows into the cultivation bed.

Description

Smart hydroponic cultivation device with increased efficiency {A smart hydroponics with increased efficiency}

The present invention relates to a smart hydroponic cultivation device with increased efficiency, in which a culture solution in which appropriate requirements such as concentration of an appropriate culture solution component such as calcium component, appropriate oxygen concentration, and appropriate pH value are satisfied are supplied to plants, It relates to a smart hydroponic cultivation device configured so that appropriate requirements can be efficiently met in terms of resources or energy.

In general, various plants are cultivated by sowing seeds or planting seedlings in open fields such as rice paddies and fields composed of soil with nutrients and good ventilation of moisture and oxygen.

Recently, however, technologies related to hydroponics, which grow plants using a culture medium in a liquid state, regardless of soil, have been in the limelight. Such hydroponic cultivation can protect plants from various diseases and pests by supplying culture medium in which various growth promoters and nutrients are diluted, and can obtain high yields in a short period of time without using pesticides harmful to the human body by artificially accelerating the growth rate of plants. Because of its advantages, it is now widely used.

Conventional hydroponic cultivation devices employ a culture medium circulation method in which culture concentrate is mixed with raw water to form a culture medium in which the culture medium is diluted, the formed culture medium is supplied to the plants, and then the drained culture medium is pumped back to the plants. many.

Look at Korean Patent Publication No. 10-2018-0002113, which is a prior art. The prior art relates to a smart hydroponic cultivation device capable of automatically forming and supplying a culture solution suitable for plant cultivation.

However, the above-mentioned prior art discloses only the technical feature of automatically mixing the raw material culture medium in forming the culture medium, and the technical characteristics of how to efficiently satisfy the appropriate requirements of the culture medium in terms of resources or energy. is not initiating

Look at another prior art, Republic of Korea Patent Publication No. 10-2022-0091077. The prior art relates to a hydroponic cultivation device capable of changing the distance between neighboring plants according to the size change according to the growth of the plant.

However, the above-described other prior art is configured to be applied only to one type of plant cultivation, and there is a problem in that components must be changed in order to be applied to plants with different growth types. That is, technical features that can be applied to many types of plants with different growth forms are not disclosed.

Looking at another prior art, Republic of Korea Patent Publication No. 10-2021-0085661. The prior art is a modularized hydroponic cultivation device, which can selectively manufacture a hydroponic cultivation device according to the surrounding environment and space, and discloses technical features that can be smoothly washed by separating the hydroponic cultivation device by module during washing.

However, in another prior art described above, there is a problem in that it is laborious to separate the hydroponic cultivation device for each module during washing, and furthermore, once installed, there is a limit to its application in large-scale hydroponic cultivation devices that must last for a long time in a fixed state. there is

Furthermore, although the culture solution is supplied to plants in a way in which the culture solution is automatically circulated according to the existing prior art, it is only premised on the process of automatically circulating the culture solution, and assists in coping with problems in the automatic circulation process. It does not disclose any technical features of means or the like.

Therefore, it can be applied to the cultivation of various types of plants with different growth shapes or root lengths, and the cleaning of the cultivation bed can be efficiently performed in the installed state, and if a problem occurs during the automatic circulation of the culture medium, it can be automatically controlled. There is an urgent need for technical features for an entirely automated hydroponic cultivation device, such as being able to cope with the judgment of the water culture medium and efficiently meeting the appropriate requirements of the culture medium.

In order to solve the above-mentioned problems according to the prior art, it can be applied to the cultivation of various types of plants with different growth forms or root lengths, and the cleaning of the cultivation bed can be efficiently performed in the installed state, and problems during the automatic circulation of the culture medium can be applied. If this occurs, it can be automatically dealt with by the judgment of the control unit, and furthermore, it is proposed to provide an entirely automated hydroponic cultivation device that can efficiently meet the appropriate requirements of the culture medium in terms of resources or energy.

In order to solve the problems according to the prior art described above, the smart hydroponic cultivation apparatus according to the present invention includes a culture medium supply tank 100 in which a first culture medium and a second culture medium are supplied and mixed; And a cultivation bed 200 to which the culture medium is supplied from the culture medium supply tank 100,

Air may be supplied to the culture solution while the culture solution located in the culture solution supply tank 100 flows to the cultivation bed 200.

Preferably, an auxiliary culture solution supply tank 150 through which the culture solution flows from the culture solution supply tank 100 in a state of communication with the culture solution supply tank 100; And an air supply device 130 mounted on the attached culture medium supply tank 150,

The volume of the culture medium supply tank 100 is greater than the volume of the accessory culture medium supply tank 150,

In a state where the air supplied from the air supply device 130 is mixed with the culture medium flowing into the accessory culture fluid supply tank 150, the culture fluid flowing from the auxiliary culture fluid supply tank 150 is transferred to the cultivation bed 200. can be supplied.

Preferably, it further includes a discharged culture solution storage tank 400 in which the culture solution discharged from the cultivation bed 200 is stored,

The culture solution flows from the discharged culture solution storage tank 400 to the culture solution supply tank 100, but only when the water level of the discharged culture solution storage tank 400 is above a certain level, a certain amount of culture solution flows into the culture solution supply tank 100 at once. It can be.

Preferably, the auxiliary culture medium supply tank 150 may be located inside the culture medium supply tank 100.

Preferably, a raw water storage tank 101 for supplying raw water to the culture medium supply tank 100; An electrical conductivity sensor, a pH sensor, a culture medium storage tank level sensor, and a UV sterilization device mounted on the culture medium supply tank 100; A cooler 140 mounted on the culture medium supply tank 100 to cool the culture medium supply tank 100; a first culture medium storage unit 102 supplying the first culture medium to the culture medium supply tank 100; a second culture medium storage unit 103 supplying the second culture medium to the culture medium supply tank 100; And a pH adjusting agent storage unit 104 for supplying the pH adjusting agent to the culture medium supply tank 100,

By the operation of the cooler 140, the water temperature of the culture medium located in the culture medium supply tank 100 is maintained below a certain temperature,

After a certain amount of the culture medium flows from the discharged culture medium storage tank 400 to the culture medium supply tank 100, according to the sensing values of the electrical conductivity sensor, the pH sensor and the culture medium storage tank level sensor, the first culture medium, the second Any one or more of the culture medium, pH adjusting agent, and raw water flows into the culture medium supply tank 100,

In a state where the culture medium flows from the culture medium supply tank 100 to the auxiliary culture medium supply tank 150, the air supply device 130 is operated to supply air to the culture medium flowing into the auxiliary culture medium supply tank 150. and the air-supplied culture medium can flow from the attached culture medium supply tank 150 to the cultivation bed 200.

According to the present invention, in meeting the appropriate requirements of the culture medium, not only is the automatically discharged culture medium circulated and used efficiently, but also air is mixed with the culture medium immediately before being supplied to the cultivation bed, which is efficient in terms of resources or energy. can be satisfied with

Furthermore, due to the components constituting the cultivation bed according to the present invention, various types of plants with different growth shapes or root lengths can be grown in one cultivation bed, further increasing the efficiency of the hydroponic cultivation device.

Furthermore, since the bed washing unit is moved onto the cultivation bed in a fixed state and the cultivation bed is washed, the cleaning of the hydroponic cultivation apparatus can be efficiently performed.

Furthermore, it is possible to automatically identify problems during the circulation of the culture solution based on the plant's growth state, temperature and humidity, or water pressure in the culture medium supply pipe, and such problems can be automatically solved by providing means for dealing with the problems.

1 is a view conceptually showing a smart hydroponic cultivation apparatus according to the present invention.
2 is a diagram schematically showing a cultivation bed in the present invention.
3 and 4 are views schematically showing the state of a cultivation bed that can be applied to the cultivation of various types of plants.
5 and 6 are views schematically showing a bed washing unit installed above the growth bed in the present invention and washing the inside of the growth bed.
7 is a diagram schematically showing components necessary for supplying a culture solution configured so that the culture solution can be continuously supplied to the growth bed.
8 to 10 are views schematically showing a state in which a multi-stage growth bed is mounted on a hydroponic culture frame and a state in which a seating area of a growth bed on which a planting plate is seated is changed.

Hereinafter, preferred embodiments according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

Description will be made with reference to FIGS. 1 to 10 .

Referring to Figure 1 will be described the components of the smart hydroponic cultivation apparatus according to the present invention.

The smart hydroponic cultivation apparatus according to the present invention includes a culture solution supply tank 100, a cultivation bed 200, an LED light 300, a discharge culture medium storage tank 400, a control unit 500, and a bed washing unit 600 can do.

The culture solution mixed in the culture solution supply tank 100 is supplied to the cultivation bed 200 where plants are grown, and the plants grown in the cultivation bed 200 are irradiated with light by the LED lamp 300, and the cultivation bed 200 ) After passing through, the culture solution discharged from the cultivation bed 200 may flow to the discharged culture solution storage tank 400. The control unit 500 controls the operation of the smart hydroponic cultivation apparatus according to the present invention, and the inside of the cultivation bed 200 can be washed by the operation of the bed washing unit 600.

Referring to Figure 1, technical features that can efficiently provide a culture solution with appropriate requirements for plant growth, such as the concentration of appropriate culture solution components such as calcium components, appropriate oxygen concentration, and appropriate pH value, in terms of resources and energy will be described. do.

The first culture medium supplied from the first culture medium storage unit 102 and the second culture medium supplied from the second culture medium storage unit 103 may be supplied to the culture medium supply tank 100 by operation of the pump, respectively. The first culture medium and the second culture medium may be culture medium A and culture medium B.

Furthermore, the pH adjusting agent can be supplied from the pH adjusting agent storage unit 104 to the culture solution supply tank 100 by the operation of each pump, and the raw water stored in the raw water storage tank 101 can be supplied to the culture solution supply tank 100. there is.

The raw water, the first culture medium, the second culture medium, and the pH adjusting agent may be supplied to the culture medium supply tank 100 and mixed therewith.

Of course, each pump described above is electrically connected to the control unit 500 so that its operation can be controlled by the control unit 500.

The culture solution supply tank 100 may be equipped with an electrical conductivity sensor, a pH sensor, a culture solution storage tank level sensor, and a UV sterilization device, and may be electrically connected to the control unit 500, respectively.

The concentration of the first culture medium mixed in the culture medium supply tank 100 and the culture medium in which the first culture medium is mixed may be sensed by the electrical conductivity sensor. The culture medium should contain culture medium components necessary for the growth of plants, such as calcium and sulfur components, in appropriate concentrations according to the plant. need to be

Likewise, the culture solution mixed in the culture solution supply tank 100 needs to maintain an appropriate pH, and the pH of the culture solution in the culture solution supply tank 100 can be sensed by the pH sensor.

The water level of the culture medium supply tank 100 sensed by the culture medium storage tank level sensor, the electrical conductivity value sensed by the electrical conductivity sensor, and the pH sensed by the pH sensor are transmitted to the control unit 500, and the transmitted water level and electrical conductivity Depending on the value and pH, the control of the control unit 500 proceeds, and each of the pumps described above is operated to supply any one or more of the raw water, the first culture medium, the second culture medium, and the pH adjusting agent to the culture medium supply tank 100. .

The culture solution supply tank 100 is provided with a UV sterilization device, and the culture solution supplied to the culture solution supply tank 100 can be sterilized. Furthermore, the temperature of the culture solution needs to be maintained at about 18° C. for the propagation of unnecessary microorganisms in the culture solution. Therefore, a cooler is installed in the culture solution supply tank 100 to store the mixed culture solution supplied from the culture solution supply tank 100 at a certain temperature. can be maintained as

Furthermore, the control unit 500 is configured to enable wired/wireless communication with a predetermined communication terminal, and control of the control unit 500 can be performed by the predetermined communication terminal.

In the culture medium supply tank 100, the culture medium meeting the appropriate conditions for plant growth can be supplied to the cultivation bed 200 in which plants are grown, and furthermore, the culture medium required for plant growth needs to contain an appropriate level of oxygen. . Such an appropriate level of oxygen concentration may also be an appropriate requirement for plant growth.

The smart hydroponic cultivation apparatus according to the present invention may be configured so that air is supplied during the process in which the culture solution having appropriate requirements located in the culture solution supply tank 100 flows into the cultivation bed 200.

That is, although the air supplied from the air supply device 130 mounted on the culture medium supply tank 100 may be configured to be supplied to the culture medium supply tank 100, an appropriate level of air is supplied to the entire bulky culture medium supply tank 100. In order to maintain the oxygen concentration, the air supply device 130 needs to be operated so that a large amount of air is continuously supplied.

In order to solve the above problems, in the present invention, an accessory culture medium supply tank 150 communicated with the culture medium supply tank 100 may be provided, and the air supply device 130 mounted on the auxiliary culture medium supply tank 150 supplies The air may be configured to be directly supplied to the attached culture medium supply tank 150.

The culture medium supply pipe 120 through which the culture medium flows so that the culture medium is supplied to the cultivation bed 200 may communicate with the auxiliary culture medium supply tank 150. That is, the culture medium supplied to the cultivation bed 200 may flow from the culture medium supply tank 150 through the attached culture medium supply tank 150 to the culture medium supply pipe 120 and be supplied to the cultivation bed 200.

Therefore, rather than supplying air from the air supply device 130 to the culture medium supply tank 100, air is supplied to the attached culture medium supply tank 100 having a smaller volume than the volume of the culture medium supply tank 100, and to the cultivation bed. 200, by supplying air immediately before the culture solution flows through the culture solution supply pipe 120, an appropriate level of resources and energy are used to supply the culture solution with an appropriate level of oxygen concentration to the cultivation bed 200. can

In a state where the attached culture medium supply tank 150 communicates with the culture medium supply tank 100, the culture medium may flow from the culture medium supply tank 100 to the attached culture medium supply tank 150. That is, in order to be supplied to the cultivation bed 200, the culture medium meeting the appropriate requirements other than the oxygen concentration in the culture medium supply tank 100 flows to the auxiliary culture medium supply tank 150, and flows to the auxiliary culture medium supply tank 150. Thereafter, air is supplied and the mixed culture medium flows from the attached culture medium supply tank 150 to the culture agent supply pipe 120 and can be supplied to the cultivation bed 200.

Preferably, the auxiliary culture medium supply tank 150 may be located inside the culture medium supply tank 100. Accordingly, the culture medium may be configured to flow between the culture medium supply tank 100 and the attached culture medium supply tank 150 . When the pump is operated so that the culture solution flows into the culture solution supply pipe 120, the culture solution flows from the culture solution supply tank 100 to the auxiliary culture solution supply tank 150 and flows to the culture solution supply pipe 120, most of the culture solution is the culture solution It may flow from the supply tank 100 toward the accessory culture medium supply tank 150.

That is, after the raw water, the first culture medium, the second culture medium, and the pH regulator are mixed in the culture medium supply tank 100 to maintain the appropriate culture medium component concentration and pH at an appropriate level, the mixed culture medium is supplied to the auxiliary culture medium supply tank 150 It can be configured to flow towards.

A DO sensor capable of measuring the oxygen concentration may be installed in the attached culture medium supply tank 150, and the oxygen concentration of the culture medium immediately before flowing into the culture medium supply pipe 120 may be sensed by the DO sensor. In a state where the DO sensor is also electrically connected to the control unit 500, the operation of the air supply device 130 may be controlled according to the control of the control unit 500 according to the value sensed by the DO sensor.

Raw water, the first culture medium, the second culture medium, and the pH adjusting agent need to be mixed for a certain period of time to maintain an appropriate level of concentration. Such mixing needs to be done in the culture medium supply tank 100, but air is supplied to the culture medium. Therefore, a relatively short time is required to maintain the oxygen concentration at an appropriate level, even if the air supply is made to the auxiliary culture medium supply tank 150 immediately before the culture medium flows into the culture medium supply pipe 120. can be maintained sufficiently.

The smart hydroponic cultivation apparatus according to the present invention may further include a discharged culture solution storage tank 400 and a waste nutrient solution storage tank 450 in which the culture solution discharged from the cultivation bed 200 is stored.

Among the culture fluid supplied to the cultivation bed 200, the remaining culture fluid used for plant growth may be discharged from the cultivation bed 200 and stored in the discharged culture fluid storage tank 400. The culture medium stored in the discharged culture medium storage tank 400 may flow back to the culture medium supply tank 100.

The culture solution component concentration, pH, oxygen concentration, etc. of the culture solution discharged to the discharged culture solution storage tank 400 can be changed while passing through the cultivation bed 200, and the culture solution whose concentration has been changed in this way is transferred to the discharged culture solution storage tank 400. it flows

Furthermore, the culture solution component concentration, pH, oxygen concentration, etc. of the culture solution flowing into the discharged culture solution storage tank 400 inevitably vary depending on the position of the cultivation bed 200 for discharging the culture solution. That is, in a state where a plurality of unit cultivation beds 200 are mounted, the concentration of the culture solution discharged from the cultivation bed 200 located above and the concentration of the culture solution discharged from the cultivation bed 200 located below are different. In this way, the culture solution having different concentrations may be discharged and flow into the discharged culture solution storage tank 400.

If the culture solution is supplied from the discharged culture solution storage tank 400 to the culture solution supply tank 100 as soon as it flows into the discharged culture solution storage tank 400, the culture solution having an inconsistent concentration at each moment is transferred to the culture solution supply tank 100. can be supplied.

Accordingly, as the discharged culture solution having a different concentration and the like flows into the culture solution supply tank 100, the concentration of the culture solution in the culture solution supply tank 100 may also change every moment. As described above, even if the pump is operated under the control of the control unit 500 according to the sensing values of the sensors and the raw water, the first culture medium, the second culture medium, and the pH adjusting agent are supplied to the culture medium supply tank 100, the discharged culture medium As it is additionally flowed and supplied, there may be a limit to satisfy the necessary conditions for titration of the culture medium, and accordingly, in the culture medium flowing through the attached culture medium supply tank 150 to the culture medium supply pipe 120, the concentration, etc. A problem of supplying a different culture medium may occur.

Accordingly, only when the water level of the discharged culture medium storage tank 400 sensed by the water level sensor mounted on the discharged culture medium storage tank 400 is above a certain level, a certain amount of culture medium flows into the culture medium supply tank 100 at once. It can be configured to flow.

Until the water level of the discharged culture solution storage tank 400 reaches a certain level, the discharged culture solution having different concentrations is mixed while being stored in the discharged culture solution storage tank 400, and the concentration of the culture solution stored in the discharged culture solution storage tank 400 as a whole reached a level of equalization.

Thereafter, the culture medium stored in the discharged culture medium storage tank 400 flows to the culture medium supply tank 100 in a certain amount at once when the water level reaches a certain level or more, and then the culture medium flowing in a certain amount in the culture medium supply tank 100 and the culture medium supply tank 100 ), and in a state in which the discharged culture medium and the remaining culture medium are mixed, each pump operates according to the sensing values of the electrical conductivity sensor, the pH sensor, and the culture medium storage tank level sensor. If necessary, any one or more of the first culture medium, the second culture medium, the pH adjusting agent, and the raw water may flow into the culture medium supply tank 100 to form a culture medium having appropriate requirements, and a culture medium having such appropriate requirements It may flow through the attached culture medium supply tank 150 to which air is supplied and flow to the culture medium supply pipe 120 and be supplied to the cultivation bed 200 again.

A filter and a UV sterilizer may be mounted on the culture solution supply pipe 120, so that the culture solution flowing through the culture solution supply pipe 120 may be filtered or sterilized.

The discharged culture medium can be used again, but culture medium having different concentrations can be mixed again, but efficiently mixed so that a culture medium having appropriate requirements can be formed.

After the culture solution flows to the culture solution supply tank 100 in a certain amount at a time from the discharged culture solution storage tank 400, the remaining culture solution (sediment, etc.) flows into the waste nutrient solution storage tank 450 and can be treated.

Of course, the culture solution discharged from the cultivation bed 200 can flow to the discharged culture solution storage tank 400 after passing through a filter during the process of flowing into the discharged culture solution storage tank 400.

A water level sensor mounted on the discharged culture solution storage tank 400 and a pump for flowing the culture solution from the discharged culture solution storage tank 400 to the culture solution supply tank 100 may be electrically connected to the control unit 500.

Referring to Figures 2 to 4 will be described a smart hydroponic cultivation device that can be applied to a variety of plant cultivation.

Smart hydroponic cultivation apparatus according to the present invention can be applied to the cultivation of many types of plants. Plants with relatively long or short roots, plants that grow while immersed in culture medium or grow only with sprayed culture medium, plants that grow only with the end of the root in contact with culture medium, photosynthesis occurs by light from LED lights, but relatively short Various types of plants with different growth conditions, such as plants that undergo photosynthesis with a wavelength or a long wavelength, can be cultivated.

The method in which the culture solution is supplied to the cultivation bed 200 can be largely divided into fresh water, thin film and spray. It can be applied freshwater, thin film, spray or in parallel depending on the growth type of the plant.

In the case of the freshwater method in which the culture solution stays in a state where the culture medium is raised to a certain height inside the growth bed 200, there are problems in that microorganisms are easily propagated, a lot of culture medium is required, and the weight of the growth bed 200 is increased.

In the case of a thin film type that allows the culture medium to flow close to the inner bottom surface of the growth bed 200, the amount of culture medium used can be minimized and the weight of the growth bed 200 can be minimized. There is a problem that this must be supplied.

In the case of the spray type in which the culture medium is supplied to the plant roots in the form of a spray with the culture medium spray nozzle 240 mounted upward from the inner bottom surface of the cultivation bed 200, microbial propagation can be minimized, but the culture medium spray nozzle 240 It is difficult to install, and there is a problem that failure is frequent.

Smart hydroponic cultivation apparatus according to the present invention can be applied to all of the above-described freshwater, thin film and spray, and can adjust the height at which the planting plate 250 is seated can be applied to various types of plant cultivation.

The smart hydroponic cultivation apparatus according to the present invention is located under the planting plate 250, which can be seated on the growth bed 200 so that plants are planted, and the planting plate 250 on which plants are seated, but inside the cultivation bed 200. It is located in a state of being mounted in an upward direction from the bottom surface, and may further include a culture solution spray nozzle 240 for spraying the culture solution toward the roots of plants planted on the planting plate 250.

Furthermore, a plurality of culture medium level control holes 211 and 212 may be formed on the side of the cultivation bed 200 with a certain height difference. That is, the plurality of culture solution level control holes 211 and 212 have a second culture solution level higher than the first culture solution level control hole 211 formed to be positioned higher than the bottom surface of the cultivation bed 200 and the first culture solution level control hole 211 An adjustment hole 212 may be included.

The culture medium discharged through the first culture medium level control hole 211 is discharged to the first discharge pipe 221 communicated with the first culture medium level control hole 211, and the first discharge electronic valve mounted on the first discharge pipe 221. When (221-1) is opened, the culture medium may be discharged through the first discharge pipe (221).

The culture medium discharged through the second culture medium level control hole 212 is discharged to the second discharge pipe 222 communicated with the second culture medium level control hole 212, and the second discharge electronic valve mounted on the second discharge pipe 222. When (222-1) is opened, the culture medium may be discharged through the second discharge pipe (222).

Accordingly, when it is desired to maintain the culture solution flowing inside the cultivation bed 200 in a thin film form, the first discharge electrons are sprayed with the culture solution through the culture solution spray nozzle 240 mounted inside the cultivation bed 200. When the valve 221-1 is opened, the culture solution can be discharged to the first discharge pipe 221 through the first culture solution level control hole 211 formed slightly higher than the bottom surface of the cultivation bed 200. At this time, the culture solution spray nozzle 240 is maintained in a thin film type in a state where the culture medium is sprayed, so that the thin film type and the spray type may be applied at the same time.

In the case of maintaining the culture fluid flowing inside the cultivation bed 200 in a fresh water manner, the first discharge electronic valve 221 is sprayed with the culture fluid through the culture fluid spray nozzle 240 mounted on the inside of the cultivation bed 200. -1) is closed, if the second discharge electronic valve 222-1 is opened, until the culture solution is discharged through the second nutrient solution level control hole 221 formed higher than the first culture solution level control hole 211 As the culture medium fills up inside the cultivation bed 200, the freshwater diet can be maintained with the culture medium having a constant water level. The culture solution rising above a certain water level may be discharged to the second discharge pipe 222 through the second nutrient solution level control hole 221 . At this time, the culture solution spray nozzle 240 is maintained in the fresh water type in the state where the culture medium is sprayed, and eventually, the thin film type and the spray type may be applied at the same time.

Depending on the type of plant to be cultivated, fresh water, thin film or spraying is applied, and thus it can be applied to various types of plant cultivation.

Furthermore, the smart hydroponic cultivation apparatus according to the present invention may further include a plurality of LED lights 300 mounted on the cultivation bed 200 and radiating light to the planting plate 250. That is, as the light is irradiated from the LED lamp 300 and reaches the plant planted on the planting plate 250, photosynthesis of the plant can be achieved with this light.

At this time, the wavelength of any one LED light 320 among the plurality of LED lights 300 and the wavelength of the other LED light 340 may be different from each other. That is, since the wavelength of light irradiated from the LED lamp 300 may vary depending on the type of plant, LED lamps 300 having different wavelengths may be applied to cultivation of these various types of plants.

The first discharge solenoid valve 221-1, the second discharge solenoid valve 222-1, and the LED light 300 are electrically connected to the control unit 500 and can be operated under the control of the control unit 500. .

According to the type of plants planted on the planting plate 250 under the control of the control unit 500, in a state in which the culture solution is sprayed from the culture solution spray nozzle 240, the first discharge electronic valve 221-1 and the second The water level of the culture medium in the cultivation bed 200 can be adjusted by the operation of any one or more of the discharge electronic valves 222-1, and the wavelength of the LED lamp 300 depends on the type of plants planted on the planting plate 250. this may change.

Technical features that can vary the height of the planting plate 250 according to the type of plant to be cultivated will be described with reference to FIGS. 5 and 8 to 10 .

In the smart hydroponic cultivation device according to the present invention, the flow method of the culture solution inside the cultivation bed 200 can be fresh water, thin film or spray, as well as fresh water, thin film or spray. The height of the planting plate 250 seated on the 200 can be adjusted. The height of the planting plate 250 seated on the cultivation bed 200 may be adjusted according to the type of plant to be cultivated.

In the smart hydroponic cultivation apparatus according to the present invention, one or more seating ends 230 on which the planting plate 250 is seated are formed between the top and bottom of the cultivation bed 200, and the seating ends 230 formed above are below. It may be formed so that the width between the facing sides becomes narrower toward the formed seating end 230 .

Planting plate 250 seated on one seating end 230 that is different from the width of the planting plate 250 seated on any one seating end 230 among the plurality of seating ends 230 formed on the growth bed 200 In a state in which the width of the different from each other, the planting plate 250 seated on one of the seating ends 230 may be configured to be seated on the other seating end 230 after the planting plate 250 is removed.

Accordingly, the seating end 230 of the growth bed 200 on which the planting plate 250 is seated may be changed according to the type of plant planted on the planting plate 250 . For example, in the case of plants with long roots, the planting plate 250 is seated on the top of the growth bed 200, and in the case of plants with short roots, the lowest among the seating ends 230 formed inside the growth bed 200. The planting plate 250 may be seated on the seating end 230 .

When fresh water is applied to the growth bed 200 composed of a plurality of seating ends 230, the water pressure of the culture medium may be applied to the outer surface of the growth bed 200, which may cause damage to the growth bed 200.

Therefore, in order to minimize damage to the growth bed 200 due to water pressure, a protruding support 260 extending in the longitudinal direction and protruding outward may be formed on the outer surface of the growth bed 200. .

In particular, in a state where the growth bed 200 is divided into a plurality of seating ends 230 step by step, any one seating end 230 of the plurality of seating ends 230 and any one seating end 230 immediately At least one protruding support 260 may be formed on an outer surface between the other seating ends 230 located below.

Even if a strong water pressure is applied to the outer surface of the growth bed 200 located between one seating end 230 and the other seating end 230 located directly below it, the protruding support 260 The outer surface may be supported and configured to withstand water pressure.

Furthermore, water pressure according to the desalination method may be strongly applied even to the upper part of the growth bed 200, and the risk of damage may be greater in the upper part than in the lower part of the growth bed 200.

In order to prevent these problems, the smart hydroponic cultivation device according to the present invention is mounted on one side of the hydroponic cultivation frame 10 and the hydroponic cultivation frame 10 to which the cultivation bed 200 is mounted, but mounted in the longitudinal direction of the cultivation bed 200. A fixing bar 12 may be further included.

The growth bed 200 may be placed on a fixed support 14 formed by the hydroponic cultivation frame 10, and the upper end of the growth bed 200 may be seated on the fixing bar 12.

Accordingly, the outer surface between the upper end of the growth bed 200 and the seating end 230 located directly below the upper end of the growth bed 200 may come into contact with the fixing bar 12 on the side.

Therefore, even if the water pressure of the culture solution is applied to the outer surface of the upper part of the growth bed 200 in an outward direction, it is supported by the fixing bar 12, so damage caused by water pressure in the upper part of the growth bed 200 can be minimized. .

Technical features capable of cleaning the inside of the growth bed 200 will be described with reference to FIGS. 5 and 6 .

The smart hydroponic cultivation apparatus according to the present invention further includes a bed washing unit 600 capable of washing the inside of the cultivation bed 200 while moving along the top of the cultivation bed 200 while being positioned on the cultivation bed 200 can include

Specifically, the bed washing unit 600 includes a pair of guide rails 610, a pair of supports 620, a high pressure water supply pipe 630, a brush 640, a push rod 650, a main motor 660 And it may include a conveying chain (670).

A pair of guide rails 610 may be mounted on both sides of the cultivation bed 200. Preferably, it can be mounted in a coupled state to both sides or top of the growth bed 200.

The pair of supports 620 may be configured to move along the pair of guide rails 610, and any one of the pair of supports 620 along any one guide rail 610. At the same time as being configured to be moved, it may be configured to be moved while being coupled to the transport chain 670.

The transfer chain 670 may be configured to be moved forward and backward by the operation of the main motor 660 in a state of being mounted on the main motor 660, and eventually the transfer chain ( 670) is moved forward and backward, and the pair of supports 620 can be moved along the pair of guide rails 610 due to the forward and backward movement of the transport chain 670.

The movement of the pair of supports 620 may be performed by the forward and backward movement of the conveying chain 670 due to the operation of the main motor 660 described above, but this is only an example and can move the pair of supports 620. Of course, any means that is obvious to those skilled in the art can be applied.

The pair of supports 620 include a high-pressure water supply pipe 630 through which high-pressure water flows, a rotation motor 641 and a predetermined rotation shaft 642 rotated by the operation of the rotation motor 641, and a predetermined rotation shaft 642. A brush 640 that contacts the inside of the growth bed 200 while being rotated by rotation and a pusher 650 that pushes the planting plate 250 in one direction may be mounted.

High-pressure water nozzles 632 may be mounted on the high-pressure water supply pipe 630 at regular intervals. The high-pressure water sprayed from the high-pressure water nozzle 632 may be sprayed to the inner surface and the bottom surface of the growth bed 200.

Brushes 640 contacting the bottom surface of the cultivation bed 200 while being rotated while maintaining a constant distance from the high-pressure water supply pipe 630 may be mounted on the pair of supports 620. The brush 640 is mounted on a predetermined rotational shaft 642, and this rotational shaft 642 can be rotated by the operation of a rotational motor 641 mounted on a pair of supports 620.

While maintaining a constant distance from the brush 640, the push rod 650 in contact with the planting plate 250 may push the planting plate 250 in one direction while being moved.

The pusher 650 pushes the planting plate 250 seated on any one of the seating ends 230 of the growth bed 200, and extends downward while growing the bed 200. ) It may be extended in a form corresponding to one or more seating ends 230 formed in. Therefore, the planting plate 250 seated on the top of the growth bed 200 is pushed in contact with the top of the pusher 650, and the planting plate 250 seated on the seat end 230 below the top is pushed It may be configured to be pushed in a state of contact with the corresponding part of 650.

That is, as the bed washing unit 600 moves along the top of the growth bed 200, the pusher 650 pushes the planting plate 250 seated on the growth bed 200, and at the same time, the brush 640 rotates While being in contact with the inner and bottom surfaces of the growth bed 200, and the brush 640 is in contact with the bottom surface of the growth bed 200, the high-pressure water from the high-pressure water nozzle 632 is sprayed to the growth bed 200. The inner side can be washed.

In order to wash the inner surface of the growth bed 200, the high-pressure water injected into the growth bed 200 passes through the culture medium discharge hole 213 formed on the bottom surface of the growth bed 200 to the culture medium discharge hole 213. It may be discharged through the communicated third discharge pipe 223 .

A third discharge solenoid valve 223-1 may be mounted on the third discharge pipe 223. As the third discharge solenoid valve 223-1 is opened during washing, the bottom surface of the cultivation bed 200 The injected high-pressure water may flow into the third discharge pipe 223 .

In general, after the culture medium necessary for plant growth is supplied to the cultivation bed 200, unlike the discharged culture medium stored in the discharge culture medium storage tank 400, the high-pressure water and foreign substances sprayed during washing are discharged culture medium storage tank 400 ), but may be configured to flow into a separate storage tank.

The brush 640 is a material with excellent flexibility and does not exert enough pressure to damage the culture spray nozzle 240 even when it comes into contact with the culture spray nozzle 240, but as the rotation shaft 642 rotates, the culture spray nozzle ( 240), the culture solution spray nozzle 240 may be damaged, so the height from the bottom surface of the cultivation bed 200 to the predetermined rotational shaft 642 is greater than the height of the culture solution spray nozzle 240. need to be higher

In addition, the culture solution discharge hole 213 is formed on the other side of the bottom surface of the cultivation bed 200 so that the high-pressure water and foreign matter sprayed into the cultivation bed 200 can be naturally discharged to the culture solution discharge hole 213 during washing. The height may be higher than one side of the bottom surface of the growth bed 200 as the distance from one side of the bottom surface of the growth bed 200 increases.

As described above, generally, after the culture medium necessary for plant growth is supplied to the cultivation bed 200, the discharged culture medium is stored in the discharged culture medium storage tank 400, unlike the high-pressure water and foreign substances sprayed during washing are discharged. It is as described above that it can be configured to flow to a separate storage tank other than the culture medium storage tank 400.

As a result, as the pair of supports 620 are moved in one direction by the operation of the main motor 660, the pusher 650 pushes the planting plate 250, and the rotation shaft 642 is mounted on the rotating motor 641. As the brush 640 rotates by operation, it comes into contact with the bottom surface of the growth bed 200 in which the planting plate 250 has been removed, and the third discharge solenoid valve 223-1 is opened. ), the high-pressure water injected to the bottom surface of the cultivation bed 200 flows along the bottom surface of the cultivation bed 200, flows into the culture solution discharge hole 213, and can flow into a separate storage tank.

Referring to FIG. 7, technical features that can continuously supply the culture medium to the cultivation bed 200 even when a problem occurs during the automatic circulation of the culture medium will be described.

If the supply of the culture medium is cut off for a certain period of time, since there is a risk that the cultivated plants will die, the culture medium must be continuously supplied to the cultivation bed 200. Specifically, the pump should continuously flow the culture solution from the culture solution supply tank 100 to the culture solution supply pipe 120 and supply it to the cultivation bed 200.

In the smart hydroponic cultivation device according to the present invention, the culture solution may be configured to flow from the culture solution supply tank 100 to the culture solution supply pipe 120 through the attached culture solution supply tank 150 by the operation of the pump, but in another embodiment according to the present invention For example, of course, the culture solution can be supplied from the culture solution supply tank 100 to the culture solution supply pipe 120 without passing through the attached culture solution supply tank 150.

Hereinafter, an embodiment in which the culture medium can be supplied from the culture medium supply tank 100 to the culture medium supply pipe 120 without passing through the auxiliary culture medium supply tank 150 will be described, and the auxiliary culture medium supply tank 150 is provided Even in this state, it is considered that the auxiliary culture medium supply tank 150 is included in the culture medium supply tank 100, and the culture medium is supplied from the culture medium supply tank 100 to the culture medium supply pipe 120 as a whole.

The culture solution is supplied from the culture solution supply tank 100 to the culture solution supply pipe 120 by the operation of the pump. If the pump does not operate, the culture solution is not supplied due to malfunction, or is supplied with excessive water pressure, the cultivated plant dies or the culture solution supply pipe ( 120) or the culture solution spray nozzle 240 may be damaged.

In order to solve this problem, in the smart hydroponic cultivation apparatus according to the present invention, the culture fluid flowing from the culture fluid supply tank 100 flows to the cultivation bed 200 in a state of communication with the culture fluid supply tank 100 and the cultivation bed 200. It may include a culture medium supply pipe 120 configured to be.

Specifically, the culture medium supply pipe 120 may include a first branch supply pipe 121, a second branch supply pipe 122, and a main branch supply pipe 124.

One side of the first branch supply pipe 121 and the second branch supply pipe 122 may be in a state in communication with the culture medium supply tank 100, and the other side may be in a state in communication with the main stream supply pipe 124.

That is, the culture medium flowing in the culture medium supply tank 100 flows to the first branch supply pipe 121 or the second branch supply pipe 122, and then to the first branch supply pipe 121 and the second branch supply pipe 122. It flows through the communicated main stream supply pipe 124 and can flow to the cultivation bed 200. The culture medium flowing into the main branch supply pipe 124 may be the culture medium flowing in the first branch supply pipe 121 or the culture medium flowing in the second branch supply pipe 122 .

The culture solution flowing in the culture medium supply tank 100 can flow to the first branch supply pipe 121 or to the second branch supply pipe 122, and at the same time, the first branch supply pipe 121 and the second branch supply pipe 122 ) can be configured so as not to flow.

The first branch supply pipe 121 and the second branch supply pipe 122 may communicate with the culture medium supply tank 100 in a state of being separated from each other. In a normal state, the culture solution may flow to the main stream supply pipe 124 via the first branch supply pipe 121, but if a problem occurs in the flow of the culture fluid in the first branch supply pipe 121, to the first branch supply pipe 121 The flow of the culture medium may be blocked and the culture medium may flow through the second branch supply pipe 122 .

The first branch supply pipe 121 may be equipped with a first branch supply pump 121-1 and a first branch supply solenoid valve 121-2, and the second branch supply pipe 122 may be equipped with a second branch supply pump ( 122-1) and the second branch supply solenoid valve 122-2 may be mounted.

Furthermore, a first branch supply water pressure sensor 121-3 may be mounted on the first branch supply pipe 121. and the first branch supply solenoid valve 121-2.

Similarly, a second branch supply water pressure sensor 122-3 may be mounted on the second branch supply pipe 122, and this second branch supply water pressure sensor 122-3 is a second branch supply pump 122-1. and the second branch supply solenoid valve 122-2.

The first branch supply pump 121-1, the first branch supply solenoid valve 121-2, the second branch supply pump 122-1, the second branch supply solenoid valve 122-2, the first branch supply solenoid valve 121-2 The supply water pressure sensor 121-3 and the second branch supply water pressure sensor 122-3 may be electrically connected to the controller 500.

Furthermore, a temperature and humidity sensor 22 is mounted on the housing 20 of the growth bed 200 so that the temperature and humidity in the growth bed 200 can be sensed, and a camera 24 is mounted on the housing 20 for cultivation. A state of a plant located on the bed 200 may be photographed.

The temperature and humidity sensor 22 and the camera 24 may be electrically connected to the control unit 500 .

Once the first branch supply solenoid valve 121-2 is opened by the operation of the first branch supply pump 121-1, the culture medium from the culture medium supply tank 100 flows into the first branch supply pipe 121. In this case, the flow of the culture medium to the second branch supply pipe 122 may be blocked. The temperature and humidity of the cultivation bed 200 are continuously sensed by the temperature and humidity sensor 22, and the state of the plant can be continuously photographed by the camera 24.

In a state where the data on the plant state is stored in the controller 500, the state of the plant photographed by the camera 24 and the state of the plant stored in the controller 500 are compared in the controller 500 and photographed by the camera 24 If the control unit 500 determines that a difference within a certain range has occurred between the state of the plant and the state of the plant stored in the control unit 500, or if one or more of the temperature and humidity sensed by the temperature and humidity sensor 22 is preset If it is out of range, the control unit 500 determines that the culture medium is not supplied to the cultivation bed 200 due to a failure or malfunction of the first feeder supply pump 121-1, and the culture medium continuously flows to the growth bed 200. The operation of the first branch supply pump 121-1 is stopped under the control of the control unit 500 and the first branch supply solenoid valve 121-2 is closed so that the supply to the first branch supply pipe 121 can be supplied. Culture fluid flow may be blocked. At the same time, the second branch supply pump 122-1 is operated under the control of the control unit 500 and the second branch supply solenoid valve 122-2 is opened so that the culture medium flows through the second branch supply pipe 122. It can be.

By sensing the temperature and humidity of the cultivation bed 200 or the growth state of plants, problems caused by malfunctions or malfunctions of the pump can be identified and corrected, thereby minimizing damage caused by malfunctions or malfunctions of the pump.

Furthermore, the culture medium flowing through the first branch supply pipe 121 sequentially passes through the first branch supply pump 121-1, the first branch supply water pressure sensor 121-3, and the first branch supply solenoid valve 121-2. When the water pressure measured by the first branch supply water pressure sensor 121-3 is out of the preset water pressure range in the state of flow while passing through, the control unit 500 malfunctions of the first branch supply pump 121-1. The first feeder supply pump 121-1 under the control of the controller 500 so that the culture medium is not supplied to the cultivation bed 200 due to an error or a malfunction, and the culture medium can be continuously supplied to the growth bed 200. ) is stopped and the flow of the culture medium to the first branch supply pipe 121 may be blocked as the first branch supply electronic valve 121-2 is closed. At the same time, the second branch supply pump 122-1 is operated and the second branch supply solenoid valve 122-2 is opened so that the culture medium flows through the second branch supply pipe 122.

By sensing the water pressure of the culture solution supply pipe 120 through which the culture solution flows, problems caused by failure or malfunction of the pump are identified and measures are taken to minimize damage caused by such failure or malfunction of the pump.

Another problem is that the culture solution may flow to the culture solution supply pipe 120 at a certain water pressure due to a malfunction of the pump. If the water pressure is excessively high, as described above, the culture solution spray nozzle of the culture solution supply pipe 120 or the cultivation bed 200 240 may be damaged, and furthermore, the inner surface of the growth bed 200 may be damaged.

In order to minimize these problems, the smart hydroponic cultivation apparatus according to the present invention includes a first feedback pipe 121-4, a first feedback solenoid valve 121-5, a second feedback pipe 122-4 and a second feedback pipe. An electronic valve 122-5 may be included.

One end of the first feedback pipe 121-4 communicates with the first branch supply pipe 121, and the first branch supply pipe between the first branch supply pump 121-1 and the first branch supply solenoid valve 121-2. (121), and the other end may be in communication with the culture medium supply tank (100).

One end of the second feedback pipe 122-4 communicates with the second branch supply pipe 122, and the second branch supply pipe between the second branch supply pump 122-1 and the second branch supply solenoid valve 122-2. (122), and the other end may be in communication with the culture medium supply tank (100).

The first feedback solenoid valve 121-5 may be mounted on the first feedback pipe 121-4, and the second feedback solenoid valve 122-5 may be mounted on the second feedback pipe 122-4. there is. The first feedback solenoid valve 121-5 and the second feedback solenoid valve 122-5 may be electrically connected to the controller 500.

Due to these components, when the water pressure measured by the first branch supply water pressure sensor 121-3 is out of the preset water pressure range, the first feedback solenoid valve 121-5 is controlled by the control unit 500. The hydraulic pressure of the culture solution flowing through the culture solution supply pipe 120 may be adjusted to an appropriate level by allowing some of the culture solution that is opened and flowed through the first branch supply pipe 121 to flow into the first feed back pipe 121-4.

Similarly, when the culture medium does not flow through the first branch supply pipe 121 and the culture medium flows through the second branch supply pipe 122, the water pressure measured by the second branch supply water pressure sensor 122-3 is within the preset water pressure range. , the second feedback solenoid valve 122-5 is opened under the control of the control unit 500, and part of the culture solution flowing into the second branch supply pipe 122 flows into the second feedback pipe 124-4. The water pressure of the culture solution flowing into the culture solution supply pipe 120 can be adjusted to an appropriate level.

In the above, the present specification has been described with reference to the embodiments shown in the drawings so that those skilled in the art can easily understand and reproduce the present invention, but this is only exemplary, and those skilled in the art can make various modifications and equivalents from the embodiments of the present invention. It will be appreciated that embodiments are possible. Therefore, the scope of protection of the present invention should be defined by the claims.

10: hydroponic culture frame 12: fixed bar 14: support
20: housing 22: temperature and humidity sensor 24: camera
100: culture medium supply tank
120: culture medium supply pipe
121, 122: branch supply pipe 121-1, 122-1: branch supply pump
121-2, 122-2: branch supply solenoid valve 121-3, 122-3: branch supply water pressure sensor
121-4, 122-4: feedback pipe 121-5, 122-5: feedback solenoid valve
124: main supply pipe
130: air supply device
140: cooler
150: attached culture medium supply tank
200: growth bed
211, 212: culture medium level control hole 213: culture medium discharge hole
221, 222, 223: discharge pipe
221-1, 222-1, 223-1: discharge solenoid valve
230: seating plate 240: culture spray nozzle
250: planting plate 260: protruding support
300: LED lights
400: emission culture medium storage tank
500: control unit
600: bed washing unit
610: a pair of guide rails 620: a pair of supports
630: high pressure water supply pipe 632: high pressure water nozzle
640: brush 641: rotation motor 642: rotation shaft
650: push rod 660: main motor 670: transfer chain

Claims (5)

A culture medium supply tank 100 in which a first culture medium and a second culture medium are supplied and mixed; and
It includes a cultivation bed 200 to which the culture medium is supplied from the culture medium supply tank 100,
Air is supplied to the culture solution while the culture solution located in the culture solution supply tank 100 flows to the cultivation bed 200,
An accessory culture solution supply tank 150 through which the culture solution flows from the culture solution supply tank 100 in a state of communication with the culture solution supply tank 100; and
It further includes an air supply device 130 mounted on the attached culture medium supply tank 150,
The volume of the culture medium supply tank 100 is greater than the volume of the accessory culture medium supply tank 150,
In a state where the air supplied from the air supply device 130 is mixed with the culture medium flowing into the accessory culture fluid supply tank 150, the culture fluid flowing from the auxiliary culture fluid supply tank 150 is transferred to the cultivation bed 200. Supplied smart hydroponic cultivation device.
delete According to claim 1,
Further comprising a discharged culture medium storage tank 400 in which the culture medium discharged from the cultivation bed 200 is stored,
The culture solution flows from the discharged culture solution storage tank 400 to the culture solution supply tank 100, but only when the water level of the discharged culture solution storage tank 400 is above a certain level, a certain amount of culture solution flows into the culture solution supply tank 100 at once. A smart hydroponic cultivation device.
According to claim 3,
Smart hydroponic cultivation device in which the attached culture medium supply tank 150 is located inside the culture medium supply tank 100.
According to claim 4,
A raw water storage tank 101 for supplying raw water to the culture medium supply tank 100;
An electrical conductivity sensor, a pH sensor, a culture medium storage tank level sensor, and a UV sterilization device mounted on the culture medium supply tank 100;
A cooler 140 mounted on the culture medium supply tank 100 to cool the culture medium supply tank 100;
a first culture medium storage unit 102 supplying the first culture medium to the culture medium supply tank 100;
a second culture medium storage unit 103 supplying the second culture medium to the culture medium supply tank 100; and
Further comprising a pH adjusting agent storage unit 104 for supplying the pH adjusting agent to the culture medium supply tank 100,
By the operation of the cooler 140, the water temperature of the culture medium located in the culture medium supply tank 100 is maintained below a certain temperature,
After a certain amount of the culture medium flows from the discharged culture medium storage tank 400 to the culture medium supply tank 100, according to the sensing values of the electrical conductivity sensor, the pH sensor and the culture medium storage tank level sensor, the first culture medium, the second Any one or more of the culture medium, pH adjusting agent, and raw water flows into the culture medium supply tank 100,
In a state where the culture medium flows from the culture medium supply tank 100 to the auxiliary culture medium supply tank 150, the air supply device 130 is operated to supply air to the culture medium flowing into the auxiliary culture medium supply tank 150. And, a smart hydroponic cultivation device in which the air-supplied culture medium flows from the attached culture medium supply tank 150 to the cultivation bed 200.

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