KR20180083739A - Hydroponic system - Google Patents

Abstract

The present invention relates to a hydroponic system which automatically supplies a nutrient solution to a cultivating plant, and more specifically, to a hydroponic system which automatically supplies condensate water produced from an air conditioning module operated by an air conditioner arranged in a building and water of a humidifying module to a nutrient solution tank or transmits a water supply alarm to a manager. The hydroponic system has a water saving effect by supplying condensate water produced by the operation of an air conditioning module if water needs to be supplied to a nutrient solution tank or a humidifying module, and predicts a growing rate of a plant based on an increase amount of produced condensate water to automatically adjust the amount of nutrient solution to be supplied.

Description

{Hydroponic system}

The present invention relates to a hydroponic cultivation system, and more particularly, to a hydroponic cultivation system capable of improving the convenience of administrators, obtaining a water saving effect by reusing condensed water, and automatically controlling nutrient supply through prediction of plant growth.

Hydroponic cultivation is simply a cultivation method that produces crops without soil. When growing plants, soil may be absent, but water must be present. The nutrients needed for the plant are supplied by the nutrient solution dissolved in water.

Such hydroponics can be easily installed in buildings such as residential areas or offices, and the plant can be cultivated in the indoor environment instead of the outdoor.

However, in the hydroponic cultivation system according to the prior art, the manager manually checks the level of the water in the nutrient solution tank for storing the nutrient solution directly, and then manually supplies the water when the water needs to be supplied.

In addition, the condensed water condensed from the cooler for cooling and air-conditioning the room is stored in the condensed water tank, and if it exceeds the predetermined water level, there is a problem that the condensed water is discharged to the outside through a separate pipe and discarded.

Also, the water required for the humidifier for humidifying the room is likewise depended on the way that the manager manually supplies the water when the alarm is notified to the manager through the detection of the water level in the water tank for the humidifier.

Further, in the hydroponic cultivation system according to the prior art, there is a problem that the growth of plants is not performed at all and only a certain amount of nutrient solution is supplied to the cultivation bed where the plants are planted.

The hydroponic cultivation system according to the present invention can reuse water of the air conditioning module and the humidification module provided in a building for nutrient solution supply, The present invention relates to a hydroponic cultivation system capable of cultivating hydroponic cultivation.

A preferred embodiment of the hydroponic cultivation system according to the present invention is a hydroponic culture system comprising a cultivation bed in which a plurality of plant groups are planted, a nutrient solution tank for storing the nutrient solution for feeding nutrients to the cultivation bed, And a humidification module provided with a water tank for humidification in which water for humidification is stored, and an air conditioning module having a condensate tank for controlling the temperature around the plurality of plant groups and storing condensed water, (Hereinafter referred to as the "first water level") of the nutrient solution in the tank, the water level of the humidifying water tank (hereinafter referred to as the "second water level") and the condensed water level of the condensed water tank The water level alarm is sent to the user or the water is replenished through a plurality of interconnected pipelines connected to each other.

Herein, the nutrient solution tank, the humidifying water tank, and the condensate water tank may each be provided with a water level sensor for sensing the water level.

The plurality of connection pipes may include a first pipe connecting the condensate tank and the nutrient solution tank, the supply of the condensed water being controlled by the first condensed water supply valve, and the first pipe connecting the condensate tank and the humidifying water tank A second pipe for controlling the supply of the condensed water by the second condensed water supply valve, and a third pipe for connecting the humidifying water tank and the nutrient solution tank and adjusting the water supply by the humidifying water supply valve .

Further, the predetermined water level may be set to a first predetermined water level indicating an arbitrary water level of the stored nutrient solution, water or condensed water, and a second predetermined water level indicating an arbitrary water level higher than the first predetermined water level.

In addition, when all of the first to third water levels exceed the second predetermined water level, the condensate water in the condensate water tank is discharged through the condensate water discharge pipe branched from the first pipe, It is preferable that the valve is drained to the outside by regulating the opening of the valve.

In addition, when the first water level and the second water level are below the first predetermined water level and the third water level exceeds at least the first predetermined water level, the condensate water in the condensate water tank is supplied to the nutrient solution tank and the humidifying water tank Or may be supplied sequentially to the rest via any one of the nutrient solution tank and the humidifying water tank.

In addition, when the first water level and the second water level are below the first predetermined water level and the third water level exceeds at least the first predetermined water level, the first condensed water supply valve and the second condensed water supply valve simultaneously Can be opened.

The water in the humidifying water tank and the condensed water in the condensing water tank may be supplied to the humidifying water tank and the humidifying water tank when the first water level is below the first predetermined water level and the second water level and the third water level exceed at least the first predetermined water level. It is preferable to supply them directly to the nutrient solution tank.

In addition, when the first water level is below the first predetermined water level and the second water level and the third water level exceed at least the first predetermined water level, the first condensed water supply valve and the humidifying water supply valve are simultaneously Can be opened.

Further, when the first water level and the third water level exceed at least the first predetermined water level and the second water level is the first predetermined water level or lower, the condensate water of the condensate water tank can be directly supplied to the humidifying water tank .

Further, when the first water level and the third water level exceed at least the first predetermined water level and the second water level is the first predetermined water level or lower, only the second condensed water supply valve can be opened.

When all of the first to third water levels are equal to or lower than the first set water level, the user can be supplied with a water supply alarm to the nutrient solution tank and the humidifying water tank.

The condensate water tank is located at least above the humidifying water tank and the nutrient solution tank, and may be supplied by gravity when supplying the condensed water from the condensate water tank to the humidifying water tank and the nutrient solution tank.

Further, the humidifying water tank is located at least above the nutrient solution tank, and may be supplied by gravity when water is supplied from the humidifying water tank to the nutrient solution tank.

The humidifying water tank and the condensate water tank may be provided with a water pump for forcibly supplying water or condensed water to the nutrient solution tank.

In addition, the condensed water tank may have a closed structure in which the inside and the outside of which the condensed water is accommodated are shut off from each other.

In addition, the condensate tank may be made of an opaque material that prevents light from being transmitted from the outside to the inside.

The air conditioner further includes a light sensor for measuring a light amount of the space in which the re-feeding bed is installed (hereinafter referred to as a 'cultivation space') and a humidity sensor for measuring the humidity of the cultivation space, An average leaf area index of the plurality of plant groups is calculated through the amount of condensed water condensed through the plant, the light amount of the cultivation space measured by the photosensor, and the relative humidity or absolute humidity of the cultivation space measured by the humidity sensor Plant growth can be predicted.

In addition, when the gradient of the growth curve according to the degree of plant growth of the plurality of plant groups is decreased, the light amount of the artificial light source and the nutrient solution supply amount to the cultivation bed can be increased.

In addition, when there is no change in the growth curve according to the degree of plant growth of the plurality of plant groups, an alarm can be notified to the manager.

In addition, when the slope of the growth curve is increased or maintained according to the degree of plant growth of the plurality of plant groups, it is preferable to maintain the light amount of the artificial light source in the present state and the nutrient solution supply amount to the cultivation bed.

According to a preferred embodiment of the hydroponic cultivation system according to the present invention, the following effects can be achieved.

First, when condensate generated from the air conditioning module used as a cooling unit for cooling and air-conditioning the building is insufficient for the water in the tank for the humidification tank or the humidification module provided for humidifying the building, it is supplied to the nutrient tank and the humidification module And has the effect of water saving by being provided for reuse.

Second, the nutrient solution tank, the condensate water tank, and the humidifying water tank are mutually connected by piping, and supply and drainage are automatically performed according to the respective water level, thereby improving the convenience of the manager.

Third, the growth rate of the plant according to the amount of condensed water is calculated, and the supply of nutrient solution is actively changed according to the degree of growth of the plant, thereby preventing waste of the nutrient solution.

1 is a facility view of a hydroponic cultivation system according to the present invention,
Fig. 2 is a nutrient supply pipe diagram of Fig. 1,
3 is an opening / closing relationship chart of each valve according to the detected water level for each water level sensor,
4A to 4E are water supply pipe diagrams according to Fig.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention. It should be noted that the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It should be understood that various equivalents and modifications are possible.

Hereinafter, a hydroponic cultivation system according to an embodiment of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a facility view of a hydroponic culture system according to the present invention, and Fig. 2 is a nutrient solution supply pipe diagram of Fig.

A preferred embodiment of the hydroponic cultivation system according to the present invention is characterized in that as shown in Figs. 1 and 2, a plurality of plant groups are cultivated, a cultivation bed 1 is cultivated, a cultivation bed 1 is cultivated, And a nutrient solution tank 3 for storing the nutrient solution.

On the other hand, the cultivation bed 1 and the nutrient solution tank 3 described above can be installed in a room of a building used as a residence or an office.

In the interior of the building, an air conditioning module 2 configured by a heater or a cooler for air-conditioning the indoor air is usually provided, and a humidifying module for humidifying the room may be provided.

The plurality of plant groups produced through hydroponic cultivation may be cultivated plants of lettuce, Chinese cabbage or various edible vegetables, which are generally small in size of fully grown plant bodies.

Since such a vegetable is highly sensitive to temperature and humidity environment because it is suitable for highland environment in the growth environment, the growth environment of the vegetable can be controlled by using a cooler and a humidification module in the above-described air conditioning module 2.

However, it is not always necessary to provide a separate air conditioning module (2) or a humidification module for hydroponics cultivation, and the air conditioning module (2) for air conditioning a general room in which a hydroponic cultivation system is not installed or a humidifying module It is natural that it can be utilized.

When the air conditioning module (2) is provided as a multi-type air conditioner, an air conditioning room in which a compressor for compressing refrigerant is installed in a part of the interior of the building is provided, and a plurality of indoor units The refrigerant discharged from the air conditioning room is circulated through a connecting pipe in a city, thereby constructing a refrigerating cycle of the refrigerant.

In particular, when the indoor unit functions as a cooler, the refrigerant flows into the indoor unit, heat-exchanges with the indoor air, and then evaporates, so that the condensed water condenses on the surface of the indoor heat exchanger, and the condensed condensed water is separately collected and stored in the condensate tank 7.

On the other hand, in the case of the humidification module, humidification is performed using the water stored in the humidifying water tank 5 provided therein. When the water in the humidifying water tank 5 is insufficient, the manager or the user Quot ;, and " a ", collectively referred to as "

A preferred embodiment of the hydroponic culture system according to the present invention is characterized in that in addition to the cultivation bed 1 and the nutrient solution tank 3 described above, the humidity around the plurality of plant groups is regulated and humidification A humidification module provided with a water tank 5 and an air conditioning module 2 provided with a condensate tank 7 for controlling the temperature around a plurality of plant groups and storing condensed water.

Here, as described above, when the high-temperature vegetation is adopted as a plurality of plant groups re-planted in the cultivation bed 1, the air conditioning module 2 is provided with an air conditioner It is natural that it can be limited.

In addition, the condensate tank 7 provided in the air conditioning module 2 is not limited to the condensed water condensed by the cooling machine in the room provided with the hydroponic culture system, Lt; RTI ID = 0.0 > condensed water. ≪ / RTI > However, in a preferred embodiment of the hydroponic cultivation system according to the present invention, for convenience of explanation, a condensed water tank 7 for collecting condensed condensed water from a cooler in a corresponding room provided with a hydroponic cultivation system will be described in detail do.

On the other hand, the cultivation bed 1, the nutrient solution tank 3, the humidifying water tank 5, and the condensate tank 7 may be connected to each other through a plurality of connection pipes.

More specifically, as shown in Fig. 1, the plurality of connection piping includes a first pipe 10 for connecting the condensate tank 7 and the nutrient solution tank 3, a condensate tank 7, And a third pipe 30 connecting the humidifying water tank 5 and the nutrient solution tank 3 to each other.

Here, the first pipe 10 is provided with a first condensed water supply valve 11 to control the supply of condensed water from the condensate tank 7 to the nutrient solution tank 3. The second piping 20 is provided with a second condensed water supply valve 21 to control the supply of condensed water from the condensed water tank 7 to the humidifying water tank 5. The third piping 30 is provided with a humidifying water supply valve 31 to control the supply of water from the humidifying water tank 5 to the nutrient solution tank 3.

On the other hand, the condensate tank 7 is provided with a condensate drain pipe branched from the first pipe 10 or separately from the first pipe 10, and the condensate drain pipe is provided with a condensate drain valve. As will be described later, when the condensate water in the condensate tank 7 is full and the water tank 3 or the humidifier water tank is full, no additional water supply is required. The condensate water in the condensate tank 7 is condensed in the condensate water And drains to the outside by opening the drain valve.

The first condensed water supply valve 11, the second condensed water supply valve 21 and the humidifying water supply valve 31 (including the condensate drain valve) may be provided with an electronically controlled solenoid valve.

A preferred embodiment of the hydroponic culture system according to the present invention having the above-described structure is characterized in that the water level of the nutrient solution tank 3 (hereinafter referred to as a "first water level"), the water level of the humidifying water tank 5 (Hereinafter referred to as the "second water level") and the condensate water level (hereinafter referred to as "third water level") of the condensate tank 7 is lower than the set water level, Or can replenish water through the first pipe 10, the second pipe 20, and the third pipe 30.

Condensate water in the condensate tank 7 can be supplied directly to the nutrient solution tank 3 or directly to the humidifier water tank through the first pipe 10 and the second pipe 20 as well as to the second pipe 20 and the third piping 30, and then supplied to the nutrient solution tank 3 through the humidifier water tank.

Here, the set water level is divided into a first predetermined water level I indicating an arbitrary water level of the stored nutrient solution, water or condensed water and a second preset water level II indicating an arbitrary water level higher than the first predetermined water level I, .

More specifically, when the first set water level I is equal to or lower than the first set water level I, it can be understood as a condition that the nutrient solution in the nutrient solution tank 3 and the water in the humidifier water tank must be replenished. It can be understood as a usable condition without supplementing the nutrient solution in the nutrient solution tank 3, the water in the humidifier water tank and the condensed water in the condensate tank 7 when the second set water level is lower than the second set water level II, II), it may be understood that the condensate in the condensate tank 7 must be drained to the outside, while the replenishment of the nutrient solution in the nutrient solution tank 3 and the water in the humidifier water tank is not required.

The first set water level I and the second set water level II are set so as to satisfy the relationship between the nutrient solution accommodating volume of the nutrient solution tank 3 actually installed, the water accepting volume of the humidifier water tank and the condensable water acceptable volume May be set differently in consideration of the above-mentioned factors.

On the other hand, the first predetermined water level I and the second predetermined water level II can be sensed through the water level sensor installed in each of them.

Hereinafter, the level sensor for sensing the level of the nutrient solution in the nutrient solution tank 3 will be referred to as a 'nutrient level indicator 41', and the level sensor for detecting the level of water in the water tank of the humidifier will be referred to as a ' ), And a level sensor for sensing the level of the condensed water in the condensate tank 7 will be referred to as a 'condensate level sensor 43'.

3 is an opening / closing relationship chart of each valve according to a sensed water level for each water level sensor, and FIGS. 4A to 4E are water supply pipe views according to FIG.

A preferred embodiment of the hydroponic culture system according to the present invention is a system for determining the reuse of the condensed water according to the individual level detected through the nutrient solution level sensor 41, the water level sensor 42 and the condensate level sensor 43 (For example, a nutrient solution tank 3 and / or a humidifier water tank) that requires condensation water after the determination of the concentration of the condensed water.

To this end, a preferred embodiment of the hydroponic cultivation system according to the present invention is based on the signals received from the above-mentioned water level sensors 41, 42, 43, the optical sensor 8 described later and the humidity sensor 9 And a control unit 6 for controlling the opening and closing of the valves 11, 21 and 31.

First, as a first case, a case where all of the first to third water levels exceed the second set water level II will be described.

That is, the water level of the nutrient solution tank 3, the water level of the humidifying water tank 5, and the condensed water level of the condensate tank 7 are all fully charged.

In this case, as shown in FIG. 3 and FIG. 4A, the controller 6 drains the condensed water in the condensate tank 7 to the outside by adjusting the opening of the condensate drain valve through the condensate drain pipe. This is because if the water level of the nutrient solution tank 3 and the water level of the humidifier water tank each exceed the second set water level II, no further supply of condensed water is required and the condensate water level of the condensed water tank 7 When the second set water level (II) is exceeded, there is a possibility that the overflow of the condensed water occurs. At this time, the controller 6 keeps the first condensed water supply valve 11, the second condensed water supply valve 21, and the humidifying water supply valve 31 in a completely closed state.

Next, as a second case, it is assumed that the first water level and the second water level are equal to or less than the first predetermined water level I, and the third water level exceeds at least the first predetermined water level I.

That is, the water level of the nutrient solution tank 3 and the water level of the water tank 5 for humidification need to be supplemented, and the condensed water in the condensate tank 7 is fully charged.

3 and 4B, the control unit 6 controls the condensate in the condensate tank 7 by opening the first condensed water supply valve 11 through the first pipe 10, And the second condensed water supply valve 21 is regulated to be supplied to the humidifying water tank 5 through the second piping 20 at the same time. The amount of the nutrient solution in the nutrient solution tank 3 and the water in the water tank 5 for the humidifying water are insufficient at the same time so that the condensed water in the condensate tank 7 simultaneously supplies the condensate water to the nutrient solution tank 3 and the humidifying water tank 5 It is preferable to supply the condensed water to the nutrient solution tank 3 preferentially and to transmit the water supply alarm to the manager when the condensed water is not supplied to the humidifying water tank 5 Do.

On the other hand, as a third case, the case where the first water level is equal to or less than the first predetermined water level I and the second water level and the third water level exceed at least the first predetermined water level I will be examined.

That is, the level of the nutrient solution in the nutrient solution tank 3 is required to be filled with condensed water or water, and the condensed water tank 7 and the wetted water tank 5 are fully charged.

3 and 4C, the control unit 6 controls the supply of the condensed water of the condensate tank 7 and / or the water of the humidifying water tank 5 to the nutrient solution tank 3 . More specifically, the condensed water in the condensate tank 7 is supplied to the nutrient solution tank 3 by regulating the opening of the first condensed water supply valve 11 through the first pipe 10, Can be supplied to the nutrient solution tank 3 by regulating the opening of the water supply valve 31 for humidification through the third pipe 30. At this time, it is preferable that the second condensed water supply valve 21 is closed so that the condensed water of the condensed water tank 7 is not supplied to the humidifying water tank 5 through the second pipe 20. When the water level of the humidifying water tank 5, that is, the second water level is lowered to the first predetermined water level I or lower during the process of supplying water from the humidifying water tank 5 to the nutrient solution tank 3, The supply valve 31 is closed and controlled so that the supply of water to the nutrient solution tank 3 is stopped and the second condensed water supply valve 21 is opened and controlled to the humidifying water tank 5 through the second pipe 20 It is preferable to supply the condensed water of the condensate tank 7.

On the other hand, as a fourth case, a case where the first water level and the third water level exceed the first predetermined water level I and the second water level is equal to or less than the first predetermined water level I will be described.

That is, the nutrient solution tank 3 and the condensate water tank 7 are fully charged, and the humidifying water tank 5 is in a state requiring water supply.

In this case, as shown in FIGS. 3 and 4D, the controller 6 controls the condensate in the condensed water tank 7 to be regulated by opening the second condensed water supply valve 21 through the second pipe 20, And directly supplied to the water tank (5). At the same time, the first condensed water supply valve 11 of the first pipe 10 is closed to prevent the condensed water of the condensed water tank 7 from being supplied to the nutrient solution tank 3, It is preferable that the humidifying water supply valve 31 of the humidifying water tank 5 is closed and controlled so that water in the humidifying water tank 5 is prevented from being supplied to the nutrient solution tank 3. That is, when only the water supply to the humidifying water tank 5 is required, only the second condensed water supply valve 21 can be opened and regulated.

On the other hand, a case where all of the first to third water levels are equal to or less than the first set water level I will be described.

That is, this means that the condensate in the nutrient solution tank 3 and the condensed water collected in the condensed water tank 7 are insufficient as a state requiring water replenishment of the water tank 5 for humidification.

In this case, when there is a shortage of condensed water or water that can be supplied to the nutrient solution tank 3 from the condensate water tank 7 and the humidifying water tank 5, the control unit 6 controls the first condensed water supply valve 11, The second condensed water supply valve 21 and the humidifying water supply valve 31 are all closed and the water of the poor nutrient solution tank 3 and the water of the humidifying water tank 5 are manually supplied manually by the administrator Transmit water supply alarm.

Here, the water supply alarm system may adopt a method of outputting a blink signal of a buzzer or a predetermined indicator to the outside, but adopting a system of outputting a predetermined signal to a portable wireless communication apparatus including a cellular phone carried by an administrator It is natural that it can be done.

On the other hand, the supply of condensed water from the condensate tank 7 to the nutrient solution tank 3 or the humidifying water tank 5 and the supply of water from the humidifying water tank 5 to the nutrient solution tank 3 can be based on gravity. For this purpose, it is preferable that the condensate tank 7 is located at least above the humidifying water tank 5 and the nutrient solution tank 3, and the humidifying water tank 5 is also located at least above the nutrient solution tank 3 As shown in FIG.

However, it is needless to say that the condensed water or the water supply need not depend on the gravity, and the forced supply method by the water pump can be adopted. Therefore, when the condensed water or the water supply system does not depend on the above-mentioned gravity, the humidifying water tank 5 and the condensate water tank 7 are provided with a water pump for forcibly supplying water or condensed water to the nutrient solution tank 3 . When the water pump is provided, the installation positions of the condensate tank 7 and the humidifying water tank 5 do not necessarily have to be located above the nutrient solution tank 3.

On the other hand, the condensate tank 7 is preferably made of an opaque material in order to prevent water moss, green algae, and the like from occurring. That is, when the artificial light source 4 for a cultivated plant is provided as described later, if the condensed water tank 7 is made of a transparent material, water condensation or green algae may be generated in the condensed water collected inside. Such water moss and green algae are supplied together with the nutrient solution tank 3 to absorb the nutrients of the nutrient solution to be absorbed by cultivated plants.

In addition, the condensate tank 7 may have a closed structure in which the inside and the outside of which the condensed water is accommodated are shielded from each other so that the condensed water in the condensate tank 7 is not evaporated. This is to accurately predict the growth rate of the cultivated plant cultivated by the hydroponic cultivation system through the increase amount of the condensed water as described later.

The hydroponic cultivation system according to the present invention includes a plurality of artificial light sources 4 provided on the ceiling side of a space in which the cultivation bed 1 is installed (hereinafter referred to as a cultivation space) An optical sensor 8 for measuring the amount of light, and a humidity sensor 9 for measuring the humidity of the cultivation space.

Herein, a preferred embodiment of the hydroponic culture system according to the present invention is characterized in that the amount of condensed water generated through the air conditioning module 2 provided as a cooler, the amount of light in the cultivation space measured by the optical sensor 8, 9), it is possible to estimate the plant growth rate by calculating the average leaf area index (LAI) of a plurality of plant groups through the relative humidity or the absolute humidity of the cultivation space.

More specifically, the above-described prediction of the plant growth rate can be calculated by the following formula.

[Equation]

/

), a,b,k는 잎의 특성에 관련된 지수로서, 재배 식물의 종류에 따라 미리 측정되어지는 상수값, Et는 응축수의 양으로 비교 가능한 증산량, VPD는 습도 센서(9)를 통하여 측정된 포화수증기량이다.Here, LAI (leaf area index) = leaf area / ground area (

/

), a, b, k are index values related to the characteristics of the leaves. Constant values are measured in advance according to the type of cultivated plants. Et is the amount of evaporation that can be compared with the amount of condensate. VPD is measured through a humidity sensor (9) The amount of saturated water vapor.

Therefore, the leaf area index (LAI) can be calculated through the above equation, and the leaf area index can immediately measure the growth rate of the plant.

In a preferred embodiment of the hydroponic cultivation system according to the present invention, the growth rate of the plant is calculated as the growth curve of the plant by date, and then the gradient of the growth curve The light amount of the artificial light source 4 and the nutrient solution supply amount to the cultivation bed 1 can be increased.

This is because, when the gradient of the growth curve according to the degree of plant growth is decreased, the light amount of the artificial light source 4 and / or the nutrient solution supply amount can be recognized as a problem caused by the shortage in proportion to the growth rate of the plant.

On the other hand, if the growth curve of the plant growth group of a plurality of plant groups forms a horizontal line, an alarm can be notified to the manager. This may be a means of notifying the manager of the harvest of a plurality of flora, since it may indicate that the plant is fully grown from no further increase in volume or no change in the amount of increase in condensate.

On the other hand, when the inclination of the growth curve according to the degree of plant growth of a plurality of plant groups is increased or maintained, the control unit 6 controls the light amount of the artificial light source 4 in the present state and the nutrient solution supply amount to the cultivation bed 1 Can be maintained. This is because the amount of light and the amount of nutrients supplied for growth of a plurality of plant groups to date are appropriate, and it is necessary to maintain such a state.

A preferred embodiment of the hydroponic cultivation system according to the present invention is a system for automatically supplying water required for nutrient solution from an existing air conditioning module 2 or a humidifying module as a result of being installed inside a building or transmitting a water supply alarm to an administrator Thereby improving manager convenience.

In addition, a preferred embodiment of the present invention can realize an automatic nutrient solution supply system through the above-described various valves by accurately estimating the growth degree of a plurality of plant groups and calculating the amount of liquid to be supplied to the reaming bed 1 .

Hereinafter, a preferred embodiment of a hydroponic cultivation system according to the present invention will be described in detail with reference to the accompanying drawings. However, it should be understood that the embodiments of the present invention are not necessarily limited to the above-described preferred embodiments, and that various modifications and equivalents may be made by those skilled in the art something to do. Therefore, it is to be understood that the true scope of the present invention is defined by the following claims.

1: Growing bed 3: Nutrient solution tank
4: artificial light source 5: water tank for humidification
6: Control part 7: Condensate tank
8: Light sensor 9: Humidity sensor
10: first piping 11: first condensed water supply valve
20: second piping 21: second condensed water supply valve
30: Third piping 31: Water supply valve for humidification
41: Water level sensor 42: Water level sensor
43: Condensate water level sensor

Claims (21)

Cultivated birds planted with multiple flora;
A nutrient solution tank for storing the nutrient solution for nutrient supply to the cultivation bed;
A humidification module having a water tank for humidification in which humidity around the plurality of plant groups is controlled and water for humidification is stored therein; And
An air conditioning module provided with a condensate tank for adjusting the temperature around the plurality of plant groups and storing condensed water;
/ RTI >
(Hereinafter referred to as the "first water level") of the nutrient solution tank, the water level of the humidifying water tank (hereinafter referred to as the "second water level") and the condensed water level of the condensed water tank Quot; water level ") is lower than the set water level, the user sends a water supply alarm or replenishes water through a plurality of interconnected pipelines.
The method according to claim 1,
Wherein the nutrient solution tank, the humidifying water tank, and the condensate tank are each provided with a water level sensor for sensing a water level.
The method according to claim 1,
Wherein the plurality of connection pipes comprise:
A first pipe connecting the condensate tank and the nutrient solution tank and controlling the supply of the condensed water by the first condensed water supply valve;
A second pipe connecting the condensate tank and the humidifying water tank and controlling the supply of the condensed water by the second condensed water supply valve;
And a third pipe connecting the humidifying water tank and the nutrient solution tank, the water supply being controlled by a humidifying water supply valve.
The method according to any one of claims 1 to 3,
Wherein the set water level is set to a first set water level indicative of an arbitrary water level of the stored nutrient solution, water or condensate and a second predetermined water level indicative of an arbitrary water level higher than the first predetermined water level.
The method of claim 4,
The condensed water of the condensate tank is discharged through the condensate drain pipe branched from the first pipe or the condensate drain pipe branched from the first pipe, A hydroponic cultivation system that is drained to the outside by opening regulation.
The method of claim 4,
The condensate water of the condensate tank is directly supplied to the nutrient solution tank and the humidifying water tank when the first water level and the second water level are below the first predetermined water level and the third water level exceeds at least the first predetermined water level Or is supplied sequentially to the remainder via any one of the nutrient solution tank and the humidifying water tank.
The method of claim 4,
The first condensate supply valve and the second condensate supply valve are simultaneously opened when the first water level and the second water level are below the first predetermined water level and the third water level exceeds at least a first predetermined water level Hydroponic cultivation system.
The method of claim 4,
Wherein the water in the humidifying water tank and the condensed water in the condensate water tank are supplied to the nutrient solution tank through the first tank, Respectively.
The method of claim 4,
Wherein when the first water level is below the first predetermined water level and the second water level and the third water level exceed at least the first predetermined water level, the first condensate water supply valve and the humidifying water supply valve are simultaneously opened Hydroponic cultivation system.
The method of claim 4,
Wherein the condensate water in the condensate tank is directly supplied to the humidifying water tank when the first water level and the third water level exceed at least the first predetermined water level and the second water level is equal to or lower than the first predetermined water level.
The method of claim 4,
Wherein only the second condensate supply valve is opened when the first water level and the third water level exceed at least the first predetermined water level and the second water level is below the first predetermined water level.
The method of claim 4,
And sends a water supply alarm to the nutrient solution tank and the humidifying water tank to the user when all of the first water level to the third water level is below the first predetermined water level.
The method according to any one of claims 1 to 3,
Wherein the condensate water tank is located at least above the humidifying water tank and the nutrient solution tank and is supplied by gravity when the condensed water is supplied to the humidifying water tank and the nutrient solution tank from the condensate water tank.
The method according to any one of claims 1 to 3,
Wherein the humidifying water tank is located at least above the nutrient solution tank and is supplied by gravity when supplying water from the humidifying water tank to the nutrient solution tank.
The method according to any one of claims 1 to 3,
Wherein the humidifying water tank and the condensed water tank are provided with a water pump for forcibly supplying water or condensed water to the nutrient solution tank.
The method according to claim 1,
Wherein the condensate tank has a closed structure in which the inside and the outside of which the condensed water is accommodated are shut off from each other.
18. The method of claim 16,
Wherein the condensate tank is made of an opaque material that prevents light from being transmitted from the outside to the inside.
18. The method of claim 16,
A light sensor for measuring a light amount of a space in which the rearing bed is installed (hereinafter referred to as a 'cultivation space'); and a humidity sensor for measuring humidity of the cultivation space,
The plurality of plants are connected to each other through the amount of condensed water generated through the air conditioning module provided with the air conditioner, the light amount of the cultivation space measured by the optical sensor, and the relative humidity or absolute humidity of the cultivation space measured by the humidity sensor Hydroponic cultivation system that estimates the plant growth rate by calculating the average leaf area index of the group.
19. The method of claim 18,
Wherein the amount of light of the artificial light source and the amount of the nutrient solution supplied to the cultivation bed are increased when the gradient of the growth curve is decreased according to the degree of plant growth of the plurality of plant groups.
19. The method of claim 18,
And a hydroponic cultivation system for notifying an alarm to an administrator when there is no change in the growth curve according to the degree of plant growth of the plurality of plant groups.
19. The method of claim 18,
Wherein the light quantity of the artificial light source in the current state and the nutrient solution supply amount to the cultivation bed are maintained when the gradient of the growth curve according to the plant growth degree of the plurality of plant groups is increased or maintained.

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