KR20190089405A - Plant selling apparatus and control method thereof - Google Patents

Abstract

Disclosed are a plant selling apparatus and a control method thereof. According to an embodiment of the present invention, the plant selling apparatus comprises: a main body provided with a plant storage room therein and a viewing window on at least one side and opened/closed by a door; one or more plant trays installed inside the plant storage room to divide the plant storage room into multiple upper and lower spaces and having an immersion space for accommodating a lower part of a plant pot, at an upper part of which a plant is planted, in an immersion state; a lighting device installed to irradiate light onto the plant tray; a culture medium tank configured to store a culture medium to be supplied to the plant tray; a culture medium supply device configured to supply the culture medium in the culture medium tank to the immersion space of the plant tray; a culture medium recovery device configured to recollect the culture medium discharged from the immersion space of the plant tray to the culture medium tank; and a cooling device configured to cool the culture medium in the culture medium tank to maintain the same at a set temperature.

Description

TECHNICAL FIELD [0001] The present invention relates to a plant selling apparatus and a control method thereof,

The present invention relates to a plant selling apparatus and a control method thereof, which are capable of keeping a plant growing environment and storing the plant so that the plant can be displayed and sold for a long time.

Typically, when plants such as plants and vegetables are sold, plant-grown pots are placed on staircase-type displays or tables for the buyer to easily observe and select.

However, plants that sell in this way are difficult to grow in the display state because they do not match the surrounding environment, and they may easily worsen and degrade the product. For the growth of plants, it is necessary to control temperature, humidity, sunshine or supply water or culture liquid in a timely manner. It is difficult to display and sell for a long period of time because plants exposed to exposure are difficult to manage in good condition.

An aspect of the present invention is to provide a plant sales apparatus and a control method thereof that can maintain the growth environment of plants while displaying plants for sale for a long time.

According to an aspect of the present invention, there is provided a portable terminal comprising: a body having a plant storage room therein, at least one side surface provided with a sight window, At least one plant tray provided in the plant storage room and partitioning the plant storage room into a plurality of upper and lower spaces and provided with an immersion space for accommodating the lower part of the flowerpot planted in the upper part in an immersed state; An illumination device installed to illuminate the plant tray with light; A culture tank for storing a culture solution to be supplied to the plant tray; A culture liquid supply device for supplying the culture liquid of the culture liquid tank to the immersion space of the plant tray; A culture liquid collecting device for collecting the culture liquid discharged from the immersion space of the plant tray into the culture liquid tank; And a cooling device for cooling the culture liquid of the culture tank to maintain the temperature at a set temperature.

The plant vending machine may further include a ventilation device for ventilating the plant storage room.

The ventilation device may be installed in each of a plurality of spaces of the plant storage room partitioned by the plant tray.

The plant tray is slidably supported on a rail provided in the plant storage room, and can be drawn out after opening the door.

A plurality of the plant trays are installed in the plant storage room so as to be vertically spaced apart from each other, and the illumination device may include LED lighting installed on the upper part of each plant tray in the plant storage room.

The main body may be partitioned in the lower portion of the plant storage room and may include a lower space for receiving the culture tank and the cooling device.

Wherein the culture liquid supply device comprises: a supply pipe extending from the culture liquid tank to an immersion space of a plant tray located at the uppermost one of the plant trays; And a supply pump installed in the lower space and supplying the culture liquid of the culture tank to the supply pipe.

Wherein the culture solution collecting device comprises: a collection tray installed below the outlet of each of the plant trays and collecting the culture solution discharged from the plant trays; And a discharge pipe for guiding the culture fluid of each collection tray to be discharged to the plant tray or the culture tank disposed below the culture tank.

The plant tray includes a liquid level adjusting pipe extending upward from the outlet to adjust a liquid level of the culture liquid supplied into the immersion space; And an auxiliary outlet provided at a bottom of the liquid level adjusting pipe or at a bottom of the plant tray adjacent to the liquid level adjusting pipe at a size smaller than a flow channel cross sectional area of the liquid level adjusting pipe.

The collection tray may be long in the sliding direction of the plant tray, and the liquid level control tube may be disposed inside the immersion space of the plant tray so as to be positioned above the collection tray even when the plant tray is drawn out.

The plant selling apparatus includes a door locking device for locking or unlocking the door; A display device for displaying status or availability of the plant vending machine; And controlling the operation of the culture liquid supply device and controlling the door lock device to lock the door when the culture liquid is supplied to the plant tray and unlock the door when the culture liquid is not supplied, And a control unit for controlling the display unit to display status or availability of the display unit.

The plant tray having a discharge port for discharging the culture liquid to the culture liquid collection device; A liquid level adjusting pipe extending upward from the discharge port to adjust a liquid level of the culture liquid supplied into the immersion space; And an auxiliary outlet provided at a bottom of the liquid level adjusting pipe or at a bottom of the plant tray adjacent to the liquid level adjusting pipe at a size smaller than a flow channel cross sectional area of the liquid level adjusting pipe.

The plant selling apparatus may further include a pollen supporting member installed in the plant tray and supporting the pollen.

According to another aspect of the present invention, it is determined whether the culture liquid is supplied to the plant tray by the culture liquid supply device. If the culture liquid is being supplied to the plant tray, the door is closed, And a door lock device installed on the door to release the lock of the door can be provided.

The control method of the plant vending machine may further include a control that causes the display device provided in the main body to display the state or availability of the plant vending machine according to the determination of whether or not the culture liquid is supplied.

The control method of the plant vending machine includes a control for sensing the temperature of the plant storage room through the storage room temperature sensor and operating the ventilator based on the detection information of the storage room temperature sensor to maintain the plant storage room at the set temperature range .

The method of controlling the plant vending machine may include sensing the temperature of the culture liquid in the culture tank through the culture liquid temperature sensor and operating the cooling device based on the detection information of the culture liquid temperature sensor to maintain the temperature range in which the culture liquid of the culture liquid tank is set To the control unit.

The plant vending machine according to the embodiment of the present invention can control the temperature, humidity and sunshine of the plant storage room by operating the ventilation device, the culture liquid supply device, and the lighting device, It can be maintained in an environment suitable for growing. Therefore, the plants can be stably grown in the plant storage room, and the plants can be sold while exhibiting the plants in high quality for a long period of time.

1 is a perspective view of a plant vending machine according to an embodiment of the present invention.
2 is a perspective view illustrating a plant tray of a plant vending machine according to an embodiment of the present invention and a peripheral portion thereof.
3 is a cross-sectional view of a plant vending machine according to an embodiment of the present invention.
Fig. 4 shows a state in which the culture solution is filled in the plant tray immersion space with the details of part A in Fig.
Fig. 5 shows a state in which the culture liquid in the plant tray immersion space is discharged, in detail in Part A of Fig.
6 shows a state in which a plant tray is pulled out after opening a door of a plant vending machine according to an embodiment of the present invention.
7 is a block diagram illustrating configurations for controlling operations of the plant vending machine according to the embodiment of the present invention.
8 is a flowchart showing the control of the door opening / closing and display of the display apparatus according to whether or not the plant selling apparatus according to the embodiment of the present invention is supplied with the culture medicine.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided to fully convey the spirit of the present invention to a person having ordinary skill in the art to which the present invention belongs. The present invention is not limited to the embodiments shown herein but may be embodied in other forms. For the sake of clarity, the drawings are not drawn to scale, and the size of the elements may be slightly exaggerated to facilitate understanding.

FIG. 1 is a perspective view of a plant vending machine according to an embodiment of the present invention, FIG. 2 is a perspective view showing a structure of a plant tray and its periphery, and FIG. 3 is a sectional view of a plant vending machine.

1 to 3, the plant vending machine includes a main body 110, plant trays 120, 130 and 140, a lighting device 150, a culture tank 160, a culture solution supply device 170, a culture solution collection device 180, A cooling device 190, and a ventilator 200.

The main body 110 may be provided in the form of a rectangular parallelepipedal showcase provided with a plant storage room 111 therein. The main body 110 may include a viewing window capable of being internally viewed from the outside on four sides, and the front side may be opened and closed by a door 112 having a viewing window.

The main body 110 may be provided with a lower space 113 for accommodating the culture liquid tank 160 and the cooling device 190 in a lower part and a partition space for the plant storage room 111, An electric field chamber 115 may be provided. As shown in FIGS. 1 and 2, a structure for forming the upper plate 114 and the lower space 113 is connected by four pillars 116, and the pillars and the door 112 are connected to the pillars 116 Can be mounted.

The plant trays 120, 130 and 140 are installed in the plant storage room 111 to divide the plant storage room 111 into a plurality of upper and lower spaces 111a, 111b and 111c, as shown in FIGS. 1 and 3 illustrate a state in which three plant trays 120, 130 and 140 are installed vertically spaced apart in the plant storage room 111 so as to store the pollen 10 in which the plants are planted in three stages, The number may change.

The plant trays 120, 130, and 140 may be in the form of a square box having an open top and a relatively low height to form an immersion space 121, 131, 141 capable of filling the culture liquid, as shown in FIG. The pollen 10 in which the plants are planted can be placed in a state where the bottom is accommodated in the immersion spaces 121, 131, 141 of the plant trays 120, 130, 140.

When the culture solution is filled in the immersion spaces 121, 131 and 141 of the plant trays 120, 130 and 140, the underside of the pollen 10 can be immersed in the culture liquid and nutrients can be supplied to the pollen 10 placed on the plant trays 120, 130 and 140 . In the plant trays 120, 130 and 140, a pollen supporting member 20 for supporting the pollen 10 without falling can be provided while maintaining the spacing of the pollen 10.

Referring to FIGS. 2 and 3, each of the plant trays 120, 130, and 140 may be slidably supported on a rail 117 installed on both sides of the plant storage room 111. Therefore, the plant trays 120, 130, and 140 can be pulled outward (forward) while the door 112 is opened when the pollen 10 is loaded or unloaded, as shown in FIG.

3, the culture liquid tank 160 may be received in the lower space 113 of the main body 110 in a state where the culture liquid to be supplied to the plant trays 120, 130 and 140 is filled. The cooling device 190 can be disposed at the side of the lower space 113 adjacent to the culture liquid tank 160 so as to cool the culture liquid of the culture liquid tank 160 and maintain the temperature (approximately 17 to 18 ° C) set by the culture liquid have.

The cooling device 190 may be configured to include a compressor, a condenser, an evaporator, and an expansion device, and a cooling unit 191 (evaporator) for cooling the culture liquid may be installed to enter the culture liquid tank 160. The culture liquid tank 160 may be provided with a culture liquid temperature sensor 161 for sensing the temperature of the culture liquid for controlling the operation of the cooling device 190.

The culture solution supply device 170 includes a supply pipe 171 for guiding the supply of the culture solution to the plant tray 120 and a supply pump 172 for supplying the culture solution to the supply pipe 171. The supply pipe 171 extends from the culture liquid tank 160 toward the immersion space 121 of the plant tray 120 located at the top of the plant trays. The supply pump 172 can discharge the culture liquid to the supply tube 171 in a state where the supply pump 172 is installed above the culture tank 160 in the lower space 113. When the culture liquid is supplied to the plant tray 120 located at the uppermost position via the supply pipe 171, the culture liquid fills the immersion space 121 and the liquid level rises, and the pollen 10 of the plant tray 120 is lowered Can be immersed in the culture liquid filled in the immersion space 121 to receive moisture and nutrients necessary for growth.

In the present embodiment, the culture medium is supplied only to the uppermost plant tray 120. However, in case that the types of plants are different for each plant tray and the supply amount of the culture medium is different, And may be configured to distribute the culture liquid to the respective plant trays 120, 130 and 140, and a solenoid valve for adjusting the supply amount of the culture liquid may be added to the supply pipe 171.

As shown in FIGS. 2 and 4, the plant tray 120 extends upward from the discharge port 122 formed at the bottom of the immersion space 121 to adjust the height of the culture liquid supplied into the immersion space 121 And an auxiliary outlet 211 provided at a lower portion of the liquid level adjusting pipe 210 and having a size smaller than the flow cross sectional area of the liquid level adjusting pipe 210. The auxiliary discharge port 211 may be provided at a bottom of the plant tray 120 adjacent to the liquid level control pipe 210 so as to be smaller than the flow cross sectional area of the liquid level control pipe 210,

4, when the culture liquid is supplied into the immersion space 121, the liquid level control tube 210 is filled with the culture liquid by the height of the liquid level control tube 210 in the immersion space 121, ) Can be immersed in the culture solution. When the height of the culturing drug filled in the immersion space 121 is higher than the height of the liquid level adjusting pipe 210, the culture liquid is discharged through the liquid level adjusting pipe 210. Therefore, when the culture liquid is supplied into the immersion space 121, The set liquid height can be maintained.

Of course, at this time, the culture liquid in the immersion space 121 is also discharged through the auxiliary outlet 211 under the liquid level control tube 210. However, the auxiliary discharge port 211 may be filled with the culture liquid in the immersion space 121 since the flow passage area is relatively small and the flow rate discharged per unit time is less than the flow rate supplied to the immersion space 121.

5, when the supply of the culture liquid to the plant tray 120 is stopped, the culture liquid in the immersion space 121 is gradually discharged through the auxiliary outlet 211 at the lower portion of the liquid level control tube 210. Therefore, when the predetermined time has elapsed, all of the culture liquid in the immersion space 121 is discharged.

The same height of the liquid level control pipes 210 is also installed in the plant trays 130 and 140 installed in the middle and lower sides of the plant storage room 111. Therefore, the height of the culture liquid to be filled in the immersion spaces 121, 131 and 141 of all the plant trays 120, 130 and 140 can be adjusted to be filled or discharged through the liquid level control pipe 210 and the auxiliary discharge port 211 as described above.

The culture liquid recovery apparatus 180 can recover the culture liquid discharged from the immersion spaces 121, 131 and 141 of the plant trays 120, 130 and 140 into the culture liquid tank 160. As shown in FIGS. 3 and 4, the culture solution collecting apparatus 180 includes first, second, and third collecting apparatuses 120, 130, and 140 for collecting the culture liquid discharged from the plant trays 120, A first discharge tube 184 and a second discharge tube 182 for guiding the culture liquid of the upper and lower first and second collection trays 181 and 182 to be discharged to the plant trays 130 and 140 disposed below the first and second collection trays 181 and 183, And a third discharge pipe 186 for guiding the culture medium of the discharge tube 185 and the lower third collection tray 183 to be discharged into the culture tank 160 of the lower space 113.

The culture liquid recovered from the uppermost plant tray 120 is discharged to the immersion space 131 of the intermediate plant tray 130 through the first collection tray 181 and the first discharge tube 184 The culture liquid discharged from the intermediate plant tray 130 is supplied to the intermediate plant tray 130 through the second recovery tray 182 and the second discharge pipe 185 to the immersion space 141 so that the culture liquid is supplied to the lower plant tray 140. Finally, the culture liquid discharged from the lower plant tray 140 is recovered by being discharged into the culture tank 160 through the third collection tray 183 and the third discharge tube 186.

Accordingly, the culture liquid supplied by the culture liquid supply device 170 can be sequentially filled from the upper plant tray 120 to the lower plant tray 140 to immerse the pollen 10. When the supply of the culture liquid is stopped, the culture liquid of each of the plant trays 120, 130 and 140 may be recovered to the culture liquid tank 160 through the culture liquid recovery apparatus 180.

Although not shown in the drawing, the shape of the culture liquid collecting apparatus 180 may be changed in the case where the supply tubes 171 of the culture liquid supplying apparatus 170 are divided into a plurality of branches to distribute and supply the culture liquid to the respective plant trays 120, 130 and 140, respectively. In this case, the culture liquid recovery apparatus 180 is configured such that the discharge tubes connected to the first to third collection trays 181, 1821, and 83 are discharged to the culture liquid tank 160 so that the culture liquid of each of the plant trays 120, Lt; RTI ID = 0.0 > 160 < / RTI >

As shown in FIG. 6, the first to third collection trays 181, 182, and 183 are long in the direction in which the plant trays 120, 130, and 140 slide. The liquid level control pipe 210 is disposed on the inner rear side of the immersion spaces 121, 131 and 141 of the plant trays 120, 130 and 140 so as to be located above the collection trays 181, 182 and 183 even when the plant tray 120 is taken out. Therefore, even when the plant trays 121, 130 and 140 are taken out, the liquid level control tube 210 does not leave the upper portions of the collecting trays 181, 182 and 183 and the discharged liquid is discharged to the collecting tray 181, 182, 183).

As shown in FIG. 3, the lighting device 150 may include LED lighting installed on each of the plant trays 120, 130, and 140 inside the plant storage room 111, respectively. The lighting device 150 can illuminate the plants on the plant trays 120, 130, 140 for the growth of the plants. The LED can be selected by irradiating light of a wavelength suitable for the characteristics of the storage plant. Therefore, when plants having different optical characteristics are stored for each of the plant trays 120, 130, and 140, the LEDs of the spaces 111a, 111b, and 111c may be classified into different wavelengths of irradiation light.

The ventilation device 200 may be installed at a plurality of spaces 111a, 111b and 111c of the plant storage room 111 partitioned by the plant trays 120, 130 and 140, respectively, as shown in FIGS. Each ventilation device 200 may include an inlet fan 201 for introducing outside air into the inside of the plant storage room 111 and a discharge fan 202 for discharging air inside the plant storage room 111 to the outside. In each space in the plant storage room 111, a storage room temperature sensor for sensing the internal temperature for controlling the operation of the ventilator 200 may be installed.

The internal temperature of the plant storage room 111 may rise due to the influence of the lighting device 150. When the temperature rises, the interior of the plant storage room 111 is heated to the optimum temperature (about 17 to 18 ° C) The ventilator 200 operates to ventilate the plant storage room. The ventilator 200 also functions to purify the air inside the plant storage room 111 through the ventilation operation and to dry the lower part of the pollen 10 that has been immersed in the culture liquid, thereby preventing roots of the plant.

As shown in Figs. 1 and 7, the plant vending machine of this embodiment comprises an operating portion 240 for inputting operating conditions and the like, a door lock device 230 for locking or unlocking the door 112, A display device 220 for indicating the operation state or availability of the plant, and a control unit 300 for controlling the overall operation.

7, the control unit 300 controls the ventilation device 200, the supply pump 172, and the cooling device (not shown) based on the input information of the operation unit 240, the storage room temperature sensor 250, 190, the lighting device 150, the display device 220, the door lock device 230, and the like.

The user can set the operation conditions such as the set temperature of the plant storage room 111, the set temperature of the culture liquid in the culture tank 160, the supply time of the culture liquid, the supply time of the culture liquid, lighting of the illumination device 150, So that such information can be stored in the control unit 300. [0064] Then, the control unit 300 can control the operation of the plant selling apparatus based on this.

The control unit 300 may operate the supply pump 172 of the culture liquid supply device 170 for a predetermined time to supply the culture liquid to the plant trays 120, 130 and 140 at a preset time based on the information input by the user .

The control unit 300 determines whether the culture liquid is supplied to the plant trays 120, 130 and 140 by the supply pump 172 of the culture liquid supply device 170, locks the door 112 if the culture liquid is being supplied, The door lock device 230 installed on the door 112 can be controlled to release the lock of the door 112. It is possible to control the display device 220 to display whether or not the plant can be sold according to whether or not the culture liquid is supplied.

8 is a flowchart showing a method of controlling the opening and closing of the door and the display of the display device according to whether or not the culture medicine is supplied. The control unit 300 determines whether the supply pump 172 is operating or not as shown in FIG. 8, and if it is determined that the supply pump 172 is operated, (Step 302). At this time, it is possible to control the display device 220 to indicate that it is in the " wait for sale " state (303).

The pollen 10 is immersed in the culture solution while the culture solution supply device 170 supplies the culture solution, so that the wearer may take out the wet pollen 10 and the clothes or skin may be contaminated by the culture solution. 112) can not be taken out and the pollen 10 can not be taken out, and this state can be displayed through the display unit 220 to inform the purchaser.

If the controller 300 determines that the supply pump 172 is not operating in step 301 of FIG. 8, the controller 300 activates the door lock device 230 so that the door 112 can be opened, Sale " (305). ≪ / RTI >

The control unit 300 can sense the temperature of the plant storage room 111 through the storage room temperature sensor 250 and control the ventilation unit 200 to maintain the temperature range set by the plant storage room 111 have. That is, when the temperature of the plant storage room 111 is increased by the use of the lighting device 150, the ventilation apparatus 200 operates and is ventilated, so that the plant storage room 111 can be maintained at a set temperature range suitable for plant growth.

The control unit 300 senses the temperature of the culture liquid in the culture liquid tank 160 through the culture liquid temperature sensor 161 and operates the cooling device 190 based on the temperature to maintain the culture liquid in the culture liquid tank 160 at the set temperature range . So that the culture liquid supplied to the plant trays 120, 130 and 140 can maintain a temperature suitable for growing the plants.

As described above, the plant vending machine according to the present embodiment can control the temperature, humidity, and sunshine of the plant storage room 111 by operating the ventilator 200, the culture liquid supply device 170, and the lighting device 150, It is possible to maintain the plant storage room 111 in an environment suitable for plant growth. Therefore, the plants in the plant storage room 111 can be stably grown, and the plants can be displayed and sold for a long time.

110: main body, 111: plant storage room,
112: door, 113: lower space,
120, 130, 140: a plant tray, 150: a lighting device,
160: culture tank, 161: culture temperature sensor,
170: culture medium supply device, 171: supply pipe,
172: feed pump, 180: culture liquid recovery device,
181: first collection tray, 182: second collection tray,
183: third collection tray, 184: first discharge pipe,
185: second discharge pipe, 186: third discharge pipe,
190: cooling device, 200: ventilation device,
210: liquid height adjustment pipe, 211: auxiliary discharge port,
220: display device, 230: door lock device,
240: operating part, 250: storage room temperature sensor,
300: Control section.

Claims (17)

A main body having a plant storage room inside and having at least one side surface provided with a door and being opened and closed by a door;
At least one plant tray provided in the plant storage room and partitioning the plant storage room into a plurality of upper and lower spaces and provided with an immersion space for accommodating the lower part of the flowerpot planted in the upper part in an immersed state;
An illumination device installed to illuminate the plant tray with light;
A culture tank for storing a culture solution to be supplied to the plant tray;
A culture liquid supply device for supplying the culture liquid of the culture liquid tank to the immersion space of the plant tray;
A culture liquid collecting device for collecting the culture liquid discharged from the immersion space of the plant tray into the culture liquid tank; And
And a cooling device for cooling the culture liquid in the culture tank to maintain it at a set temperature. The method according to claim 1,
And a ventilating device for ventilating the plant storage room. 3. The method of claim 2,
Wherein the ventilation device is installed in each of a plurality of spaces of the plant storage room partitioned by the plant tray. The method according to claim 1,
Wherein the plant tray is slidably supported on a rail provided in the plant storage room, and the door can be opened after opening the door. 5. The method of claim 4,
Wherein a plurality of the plant trays are vertically spaced apart from each other in the plant storage room,
Wherein the lighting device comprises LED lighting installed in the upper part of each plant tray inside the plant storage room. 6. The method of claim 5,
Wherein the main body is partitioned below the plant storage room and includes a lower space for accommodating the culture tank and the cooling device. The method according to claim 6,
The culture liquid supply device includes:
A supply pipe extending from the culture liquid tank to an immersion space of a plant tray located at the top of the plant trays; And
And a supply pump installed in the lower space and supplying the culture liquid of the culture tank to the supply pipe. The method according to claim 6,
The culture liquid recovery apparatus includes:
A collection tray installed at a lower portion of a discharge port of each of the plant trays and collecting a culture liquid discharged from the plant trays; And
And a discharge pipe for guiding the culture liquid of each of the collection trays to be discharged to the plant tray or the culture tank disposed at the lower part thereof. 9. The method of claim 8,
The plant tray includes:
A liquid level adjusting pipe extending upward from the discharge port to adjust a liquid level of the culture liquid supplied into the immersion space; And
And an auxiliary outlet provided at a bottom of the liquid level adjusting pipe or at a bottom of the plant tray adjacent to the liquid level adjusting pipe at a size smaller than the flow channel cross sectional area of the liquid level adjusting pipe. 10. The method of claim 9,
Wherein the collection tray is elongated in a sliding direction of the plant tray,
Wherein the liquid height adjusting pipe is disposed behind the immersion space of the plant tray so as to be located above the collection tray even when the plant tray is taken out. The method according to claim 1,
A door locking device for locking or unlocking the door;
A display device for displaying status or availability of the plant vending machine; And
Controls the operation of the culture liquid supply device, controls the door lock device to lock the door when the culture liquid is supplied to the plant tray, and unlock the door when the culture liquid is not supplied, And a control unit for controlling the display unit to display whether or not the display unit is available for sale. The method according to claim 1,
The plant tray includes:
A discharge port for discharging the culture liquid to the culture liquid collection device;
A liquid level adjusting pipe extending upward from the discharge port to adjust a liquid level of the culture liquid supplied into the immersion space; And
And an auxiliary outlet provided at a bottom of the liquid level adjusting pipe or at a bottom of the plant tray adjacent to the liquid level adjusting pipe at a size smaller than the flow channel cross sectional area of the liquid level adjusting pipe. The method according to claim 1,
And a pollen supporting member installed in the plant tray for supporting the pollen. A method of controlling a plant selling apparatus according to claim 2,
Determining whether the culture liquid is supplied to the plant tray by the culture liquid supply device,
And controlling the door lock device installed on the door to lock the door if the culture liquid is being supplied to the plant tray and to unlock the door if the culture liquid is not supplied to the plant tray. 15. The method of claim 14,
Further comprising control for causing the display device provided in the main body to display the status or availability of the plant vending machine according to the determination as to whether or not the culture liquid is supplied. 15. The method of claim 14,
The temperature of the plant storage room is sensed through the storage room temperature sensor,
Further comprising: controlling the ventilator based on sensing information of the storage room temperature sensor to maintain the plant storage room at a set temperature range. 15. The method of claim 14,
The culture liquid temperature of the culture liquid tank is sensed through the culture liquid temperature sensor,
And controlling the cooling device based on the detection information of the culture liquid temperature sensor to maintain the temperature range in which the culture liquid of the culture liquid tank is set.

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