WO2017199621A1 - Appareil de culture de plantes - Google Patents

Appareil de culture de plantes Download PDF

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Publication number
WO2017199621A1
WO2017199621A1 PCT/JP2017/014328 JP2017014328W WO2017199621A1 WO 2017199621 A1 WO2017199621 A1 WO 2017199621A1 JP 2017014328 W JP2017014328 W JP 2017014328W WO 2017199621 A1 WO2017199621 A1 WO 2017199621A1
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WO
WIPO (PCT)
Prior art keywords
air
housing
plant
concentration
humidity
Prior art date
Application number
PCT/JP2017/014328
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English (en)
Japanese (ja)
Inventor
久保　泰康
恵太 元山
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2017199621A1 publication Critical patent/WO2017199621A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/02—Treatment of plants with carbon dioxide
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/18—Greenhouses for treating plants with carbon dioxide or the like
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2

Definitions

  • the present disclosure relates to a plant cultivation device, and relates to a plant cultivation device capable of adjusting air flow and air quality conditions important for plant cultivation.
  • Plant growth devices in an artificial environment in a substantially enclosed space such as so-called plant factories, artificially create and maintain conditions suitable for plant growth, thereby affecting the changes in seasonal and external environmental conditions. Without receiving, stable quality and yield of cultivated products are expected. For this reason, it is important how the conditions can be homogenized and maintained for each cultivated product. In particular, air quality conditions have an important role in plant growth from the viewpoint of leaf transpiration effect and photosynthetic ability, and therefore must be appropriately maintained and managed (see, for example, Patent Document 1).
  • a plant cultivation apparatus is connected to a housing having a space for cultivating a plant therein, and a collection hole of the housing for collecting air in the housing.
  • An air recovery pipe, an air conditioner that adjusts the temperature, humidity, and CO 2 concentration of air recovered from the recovery hole through the air recovery pipe to conditions corresponding to the cultivation of the plant, and the air conditioning An apparatus and a supply hole of the casing, and an air supply pipe for supplying air adjusted by the air conditioner from the supply hole of the casing into the casing.
  • air quality conditions that are the temperature, humidity, and CO 2 concentration of air recovered from the recovery hole of the housing through the air recovery pipe are set to the plant.
  • the air conditioner suitable for plant cultivation is properly homogenized because it is adjusted at one location of the air conditioner to supply the housing with the adjusted air to the conditions corresponding to the cultivation of the plant. Can be maintained.
  • FIG. 1 is an overall schematic diagram of a plant cultivation apparatus according to a first embodiment.
  • FIG. 2 is a schematic diagram for explaining the airflow around the plant of the plant cultivation apparatus according to the first embodiment.
  • FIG. 3 is a diagram for explaining an example of an airflow direction switching mechanism of the plant cultivation apparatus according to the first embodiment.
  • FIG. 4 is a diagram for explaining a structure and a procedure for adjusting air quality conditions necessary for cultivation in the plant cultivation apparatus according to the first embodiment.
  • FIG. 5: is a figure which shows the state change graph at the time of the air condition adjustment in the plant cultivation apparatus concerning Embodiment 1.
  • FIG. 1 is an overall schematic diagram of a plant cultivation apparatus according to a first embodiment.
  • FIG. 2 is a schematic diagram for explaining the airflow around the plant of the plant cultivation apparatus according to the first embodiment.
  • FIG. 3 is a diagram for explaining an example of an airflow direction switching mechanism of the plant cultivation apparatus according to the first embodiment.
  • FIG. 4 is a diagram for explaining a structure and a
  • This disclosure provides a plant cultivation apparatus that can appropriately homogenize and maintain air quality conditions suitable for plant cultivation.
  • FIG. 1 is an overall schematic diagram of an air-conditioning circulation type plant cultivation apparatus 100 according to the first embodiment.
  • the plant cultivation apparatus 100 includes at least a housing 1, an air recovery pipe 7, an air conditioner 2, and an air supply pipe 3.
  • the casing 1 has one or a plurality of cultivation shelves 1a arranged in a substantially closed space inside, and is generally kept confidential by the exterior 1b.
  • the sealing process or the like needs to be strict, which causes a cost increase.
  • the confidentiality with the external environment cannot be strictly maintained including the insertion and removal of the plant 5, and it is not necessary to make it more strict than necessary.
  • This can be prevented by slightly increasing the pressure of the air-conditioning air flow sent into the housing 1 to make the inside substantially positive pressure, and taking into consideration that outside air does not directly enter from the outside through the gap of the exterior 1 b of the housing 1.
  • FIG. 1 there is one recovery hole 6 on the top surface of the housing 1, and a plurality of supply holes 4 at the bottom of the housing 1.
  • the air conditioner 2 is disposed outside the housing 1.
  • the air quality condition necessary for cultivation is adjusted, and air is sent into the housing 1 through the air supply pipe 3.
  • the air conditioner 2 so as to optimize the air quality conditions in one place, it is possible to deliver uniform air to the entire area of all the cultivation shelves 1a in the housing 1, thereby making the cultivation quality uniform. It contributes.
  • the cultivation weight changes by 10% when the temperature condition changes by 1 ° C., and uniform air quality conditions are important.
  • the air supply pipe 3 is a pipe for sending air into the housing 1.
  • the function of the air supply pipe 3 is to send adjusted air from the air conditioner 2 into the housing 1, and the shape of the air supply pipe 3 is limited to the cylindrical pipe as shown in FIG. is not. A method of replacing this function by providing an air path in the panel holding the cultivated product in the housing 1 is also conceivable. Further, when the direction of the airflow is reversed, the air supply pipe 3 can function as a pipe for collecting air.
  • a plurality of supply holes 4 are formed in the tip portions 3a of the plurality of air supply pipes 3, and are holes for sending out air around the cultivated product.
  • the supply hole 4 is also an introduction hole for introducing the air whose temperature, humidity, and CO 2 concentration are adjusted by the air conditioner 2 into the housing 1 through the air supply pipe 3.
  • it can function as a piping hole for collecting air.
  • positioning of the supply hole 4, as for the root of the plant 5 in Embodiment 1, lower 1/3 of the height direction in the space which grows the plant 5 comprised by the bed 9 and the inner wall face of the housing
  • a plant 5 which is an example of a cultivated product is arranged on the cultivation shelf 1 a in the housing 1.
  • a recovery hole 6 for recovering air in the housing 1 is disposed on the upper surface of the housing 1.
  • the recovery hole 6 is also a recovery hole for sending air recovered from the inside of the housing 1 to the air conditioner 2 via the air recovery pipe 7.
  • the air recovered from the recovery hole 6 is sent to the air conditioner 2 through the air recovery pipe 7, and the air conditioner 2 adjusts the temperature, humidity, and CO 2 concentration suitable for the cultivation conditions of the plant 5.
  • the air conditioner 2 adjusts the temperature, humidity, and CO 2 concentration suitable for the cultivation conditions of the plant 5.
  • the air conditioner 2 adjusts the temperature, humidity, and CO 2 concentration suitable for the cultivation conditions of the plant 5.
  • the air conditioner 2 adjusts the temperature, humidity, and CO 2 concentration suitable for the cultivation conditions of the plant 5.
  • the collection hole 6 is provided immediately above (directly above) the plant 5.
  • the recovery hole 6 and the air conditioner 2 are connected by an air recovery pipe 7.
  • the air recovery pipe 7 is a pipe for recovering air from the housing 1 to the air conditioner 2.
  • the function of the air recovery pipe 7 is to recover air, and the shape thereof is not limited to the cylindrical pipe as shown in FIG. A method of substituting this function using the upper space of the housing 1 as an air path is also conceivable. Further, if the direction of the airflow is reversed, it can also function as a pipe that feeds air into the housing 1.
  • the lighting device 8 is disposed in the upper space in the housing 1.
  • the lighting device 8 is a device such as an LED that projects light for plant cultivation, and is not limited to the cylindrical shape as shown in FIG. Various shapes such as a spot type or a surface emitting type are conceivable.
  • a bed 9 holding a plant 5 is disposed as a cultivation shelf 1a.
  • the plant 5 is nourished by storing or circulating the cultivation nutrient solution in the bed 9.
  • the bed 9 is provided with a cultivation hole 90 for holding the plant 5.
  • only one cultivation hole 90 is illustrated for simplicity, but a plurality of cultivation holes 90 may be provided.
  • the plant 5 is often held on a resin panel 9 a or the like, and the panel 9 a is often floated on the bed 9.
  • a medium is placed in the bed 9, and the plant 5 is grown thereon.
  • FIG. 2 is a schematic diagram for explaining the airflow around the plant 5 shown in FIG.
  • the illumination device 8 needs to irradiate the plant 5 with illumination light uniformly and efficiently. For this reason, when the some plant 5 adjoins, the illuminating device 8 is arrange
  • FIG. 2 shows an air flow (hereinafter, illustrated as a virtual flow path 10) in which air quality conditions are adjusted from the bottom to the top around the plant 5.
  • the recovery hole 6 for recovering the air provided immediately above the plant 5 has a negative pressure.
  • the collection hole 6 is arranged directly above the plant 5, and the supply hole 4 is arranged at the root of the plant 5 and at a position that does not overlap with the collection hole 6 in plan view.
  • recovery hole 6 is located right above the cultivation hole 90, and is provided in the position which overlaps with the cultivation hole 90 in planar view.
  • the supply hole 4 is arranged around the cultivation hole 90 and at a position that does not overlap with the cultivation hole 90 in plan view.
  • the air quality conditions suitable for the cultivation of the plant 5 can be appropriately homogenized and maintained, and the quality of the plant 5 and the yield increase can be realized.
  • the position which does not overlap shows a position with the distance of at least 1 mm or more and 100 mm or less between both.
  • the plant 5 is assumed to grow from the lower side to the upper side in FIG. 2, and the airflow flowing through the virtual channel 10 also flows in the direction along the outer surface of the leaf by flowing in the direction of the arrow shown in FIG. 2. Since it flows, the damage to the leaves is small and suitable.
  • the direction of the airflow is not limited to this, and the airflow may flow in the direction opposite to the arrow.
  • the effect of swinging the leaves is large, and the effect of promoting transpiration is further enhanced.
  • the growth point of the plant 5 is right above the center part of the plant 5, the effect of promoting growth is high in that it effectively promotes transpiration of the part where growth is vigorous. Therefore, the direction of the airflow is also effective from the viewpoint of effectively enhancing the transpiration effect of the whole plant, for example, by combining these and switching the airflow device 2 alternately at regular intervals.
  • recovery hole 6 is arrange
  • recovery hole 6 is not restricted to this.
  • the collection hole only needs to be arranged above the plant 5.
  • the plurality of collection holes 6 may be arranged at positions that do not overlap with the cultivation holes 90 on the circumference around the cultivation holes 90 in plan view.
  • the recovery hole has a slit-like long hole shape, and the longitudinal direction is a plurality of plants 5 (a plurality of cultivations). You may arrange
  • FIG. 3 is a diagram for explaining an example of an airflow direction switching mechanism 40 that is incorporated in the air conditioner 2 and switches the direction of the airflow.
  • the air conditioner 2 sends air in one direction and switches between two piping paths 35 and 36 connected thereto, thereby switching the air flow direction between forward and reverse.
  • the suction side passage 41 and the first piping route 35 are provided with a first piping path 35 and a second piping path 36 that directly connect the suction side passage 41 and the feeding side passage 42 of the air conditioner 2 respectively.
  • the first valve mechanism 31 is disposed at a connection portion with the second piping path 36
  • the second valve mechanism 32 is disposed at a connection portion between the feeding-side passage 42, the first piping path 35, and the second piping path 36. Yes.
  • the first valve mechanism 31 and the second valve mechanism 32 can be switched simultaneously.
  • the first valve of the first valve mechanism 31 is a solid line position 31a
  • the suction side passage 41 and the second piping path 36 are connected
  • the first valve is a dotted line position 31b
  • the suction side path 41 and the first piping path are connected.
  • 35 is connected.
  • the second valve of the second valve mechanism 32 is at the solid line position 32a
  • the feeding side passage 42 and the first piping path 35 are connected
  • the second valve is at the dotted line position 32b
  • the feeding side passage 42 and the second piping path 35 are connected.
  • the piping path 36 is connected.
  • the first pipe end 33 is connected to the air recovery pipe 7, and the second pipe end 34 is connected to the air supply pipe 3.
  • the first piping end 33 is set when the respective valves of the first valve mechanism 31 and the second valve mechanism 32 are in the solid line positions 31 a and 32 a. From the air conditioner 2, air is sucked into the second pipe end 34 from the air supply apparatus 42 toward the suction side passage 41. Therefore, the first pipe end 33 becomes a suction port, and air is sent out toward the second pipe end 34.
  • the valve is in the positions of the dotted line positions 31 b and 32 b, air is sucked into the air conditioning device 2 from the second piping end 34 toward the suction side passage 41 via the first piping route 35, and from the air conditioning device 2.
  • Air is fed from the feed-side passage 42 to the first pipe end 33 via the second pipe path 36. Therefore, the second pipe end 34 becomes a suction port, and sends out air toward the first pipe end 33. In this way, the direction of the airflow can be switched by switching the state of the valve. Thereby, the function of the supply hole 4 and the collection
  • FIG. 4 is a diagram for explaining a structure and a procedure for creating air quality conditions necessary for cultivation.
  • the air conditioner 2 includes a sensor 11, a cooling blower 12, a CO 2 adder 14 (an example of a CO 2 concentration adjuster), a filter 15, The humidifier 16 is arranged in series in order.
  • the sensor 11 is a sensor for measuring the air quality state of the air sucked into the air conditioner 2. Specifically, the state is grasped in order to adjust air quality conditions such as a temperature sensor, a humidity sensor, and a CO 2 concentration sensor.
  • the air quality is accompanied by changes in the process of passage through the cultivation channel. A change in temperature due to illumination or outside air, a change in humidity due to transpiration of the plant 5, or a change in CO 2 concentration due to photosynthesis or respiration of the plant 5 can be considered.
  • the sensor 11 measures the temperature, humidity, and CO 2 concentration state in order to calculate the adjustment amount in the air conditioner 2 immediately after the final stage at the final stage of the collected air.
  • the control unit 91 of the air conditioner 2 adjusts air quality conditions including temperature, humidity, and CO 2 concentration based on the information.
  • the air conditioner 2 includes a cooling blower 12 as an example of a temperature adjuster described later, a humidifier 16 as an example of a humidity adjuster, and a CO 2 concentration adjuster. Any or all of the CO 2 adder 14 as an example is appropriately driven and controlled by the control unit 91 to adjust the air quality condition.
  • the cooling air blower 12 (an example of a temperature adjusting machine) is illuminated during the flow of air through the housing 1.
  • the temperature increases due to the thermal effect of the device 8 or the like. Therefore, it plays a role of appropriately cooling this and pumps air.
  • the cooling blower 12 include a spot cooler or an air conditioner indoor unit.
  • the cooling air blower 12 has an outside air acquisition pipe 13 that acquires outside air that is air outside the housing 1.
  • the pressure of the air-conditioning air flow sent into the housing 1 is slightly increased so that the inside of the housing 1 becomes a substantially positive pressure, and outside air is directly supplied from the outside of the housing 1 through the gap between the exterior 1b of the housing 1.
  • outside air is partially introduced.
  • the air quality of the air circulating in the housing 1 is accompanied by a change in the process of passing through the flow path of cultivation, but generally the change is slight, and it is necessary for the condition adjustment compared with the condition adjustment from the outside.
  • the material and energy costs are low.
  • the air conditioner 2 acquires outside air, which is air outside the housing 1, from the outside air acquisition pipe 13, and combines the acquired outside air and the air collected from the housing 1 by the air recovery pipe 7 into the air conditioner 2.
  • the air after that is adjusted to conditions corresponding to the cultivation of the plant 5, and the adjusted adjusted air is sent to the air supply pipe 3.
  • CO 2 is often supplied in the form of a high-pressure cylinder or the like. Therefore, the air from the CO 2 gas and the housing 1 which is supplied through a pipe from the cylinder are merged in a CO 2 addition 14, the CO 2 discharge quantity in a CO 2 added 14 to flow management pipe middle The required amount is discharged and mixed by opening and closing the valve.
  • An example of the discharge control will be described later with reference to FIG.
  • a filter 15 is disposed between the CO 2 adder 14 and the humidifier 16. Necessary for filtering the gas from the cooling air blower 12 that is easy for bacteria to propagate due to the outside air and complicated structure containing bacteria, and for circulating clean air, for example, HEPA filter (High Efficiency Particulate Air Filter) Such a high cleaning effect or a sterilization filter is used.
  • HEPA filter High Efficiency Particulate Air Filter
  • the reason for arranging the humidifier 16 is as follows. In the process in which air circulates inside the housing 1, the humidity of the air tends to increase due to the influence of humidity improvement due to the transpiration effect of the plant 5. Therefore, normally, since the cooling air blower 12 in the previous stage serves to remove excess humidity components with respect to the humidity that is higher than the initial state, there is no need for humidification. However, in the light-out time zone, which is called the dark period of several hours in one day, the plant does not carry out photosynthesis, closes the pores and reduces the amount of transpiration, and may be in a low humidity state. In order to compensate for this, a nozzle device for spraying mist or an ultrasonic humidifier 16 is provided to spray a necessary amount.
  • the filter 15 Since the air immediately after humidification is likely to condense, the filter 15 is not placed close to the humidifier 16 or installed upstream of the humidifier 16. In general, it is difficult to adjust the temperature while keeping the humidity constant.If the temperature is adjusted, excess humidity is removed according to the dew point. Therefore, there is a method to control the temperature upstream and the humidity downstream. It is a method to realize the optimal air quality condition. That is, a temperature adjuster 12 for adjusting the temperature is provided on the upstream side of the flow path through which the air flows, and a humidifier 16 for adjusting the humidity is provided on the downstream side.
  • the filter 15 cleans the air sent into the housing 1 and is preferably disposed as close to the housing 1 as possible.
  • the humidifier 16 is placed downstream of the filter 15 to prevent wetting due to humidification.
  • the filter 15 is arranged on the upstream side of the humidifier 16 in the flow path in the air conditioner 2.
  • the airflow flows through the virtual flow path 10 in the housing 1.
  • Condition adjustment is performed along the flow toward the vessel 16.
  • FIG. 5 is a diagram showing a state change graph when adjusting the air condition.
  • the state change at the time of spraying to the air which flows through is shown.
  • the horizontal axis of the CO 2 concentration change graph indicates time, and the vertical axis indicates the CO 2 concentration.
  • the two-dot chain line indicates the target value 19 of the CO 2 concentration suitable for cultivation.
  • the CO 2 concentration is adjusted using this as a target value.
  • the upper curve graph of the CO 2 concentration change graph of FIG. 5 shows an example of the change 20 of the CO 2 concentration of air after adjustment.
  • the lower curve graph of the CO 2 concentration change graph of FIG. 5 shows an example of the change 21 of the CO 2 concentration change 21 of the introduced outside air, which is one of the CO 2 concentration change factors.
  • the CO 2 concentration in the outside air is generally about 400 ppm, which is slightly lower than the conditions suitable for plant cultivation.
  • the CO 2 concentration in the outside air changes significantly depending on the exhalation of human beings, and may change drastically, for example, when it is rapidly increased when there are workers around.
  • outside air is introduced into the housing 1, such influences are temporarily received.
  • the CO 2 concentration of the outside air is normally confined to a level of about 400 ppm, it is practical for cultivation of the plant 5. There is no effect.
  • the bar graph in the CO 2 concentration change graph of FIG. 5 indicates the CO 2 amount 22 discharged from the CO 2 adder 14.
  • the discharge amount per one time from the CO 2 adder 14 is set according to the amount of air leaking from the housing 1 to the outside and the cultivation phase of the plant 5.
  • the leakage amount of air from within the housing 1 is a slight and and a certain amount, because growth changes in plant 5 is also slow, the discharge of the CO 2 from the CO 2 adding device 14 It does not need to be done frequently and can be covered with a cycle every 5 to 15 minutes.
  • sensing of the CO 2 concentration by the sensor 11 is performed in a shorter cycle such as every other minute, and the target value of the CO 2 concentration suitable for cultivation is obtained. against 19, when exceeding a certain margin, immediately suspend CO 2 discharged from the CO 2 adding device 14 by the control of the control unit 91.
  • the upper curve graph which is an example of the change 20 of the adjusted CO 2 concentration of air, exceeds a certain margin with respect to the target value 19 of the CO 2 concentration suitable for cultivation.
  • the point where the CO 2 concentration has increased that is, the point 23 where the CO 2 concentration target value has been exceeded is shown.
  • 1100 ppm is set as a determination threshold (that is, the upper limit side margin with respect to the target value of 1000 ppm is set to 100 ppm). immediately shall be paused CO 2 discharged from the CO 2 adding device 14 by the control of the control unit 91.
  • CO 2 concentration change graph of FIG. 5 the target value 19 of the CO 2 concentration suitable for cultivation, the change in CO 2 concentration in the air after adjustment 20, that the CO 2 concentration is reduced beyond a certain margin That is, a point 24 that is lower than the CO 2 concentration target value is shown.
  • the control unit 91 determines that the lower limit side margin is set to 100 ppm with respect to the target value of 1000 ppm for the CO 2 concentration target value of 1000 ppm (that is, the lower limit margin for the target value of 1000 ppm is set to 100 ppm). to immediately resume CO 2 discharged from the CO 2 adding device 14 by the control of the control unit 91.
  • the air state is measured by the sensor 11 in a relatively short time cycle (for example, every other minute) and determined by the control unit 91 and compared.
  • the basis of the control law in the control unit 91 is that the control unit 91 adjusts the air quality condition in a long time cycle (for example, every 5 to 15 minutes).
  • the temperature and humidity are also controlled by the control unit 91 in the same manner as the CO 2 concentration.
  • control of each structure of said plant cultivation apparatus is performed by the control part 91 by a computer etc.
  • the control unit 91 includes one or a plurality of memories or processors, and a predetermined program is stored so as to perform the above-described operation.
  • the stable cultivation of a plant is realizable.
  • the air conditioner is configured so that the temperature, humidity, and CO 2 concentration of the air recovered from the recovery hole 6 of the housing 1 through the air recovery pipe 7 are the air quality conditions corresponding to the cultivation of the plant 5. 2 is adjusted at one place, and the adjusted air is supplied to the housing 1. Therefore, the air quality conditions suitable for the cultivation of the plant 5 can be appropriately homogenized and maintained, and the plant 5 can contribute to stable quality and increased yield.
  • an airflow is flowed to the virtual flow path 10 along the path
  • the plant cultivation apparatus 100 how to appropriately control the fluctuating external environment and how to flow the airflow in an appropriate position and direction with respect to the plant 5. Can be considered. Thereby, the air quality conditions suitable for cultivation of the plant 5 can be appropriately homogenized and maintained, and the quality of the plant 5 and the yield increase can be realized.
  • the plant cultivation apparatus is not limited to the above-described embodiment, and can be implemented in various other aspects.
  • the sensor 11 is arranged in the air conditioner 2, it is only necessary to detect the state of the air collected in the air conditioner 2, so that it is arranged in the air recovery pipe 7 outside the air conditioner 2, for example. It may be.
  • the plant cultivation apparatus can appropriately homogenize and maintain air quality conditions suitable for plant cultivation in an environment where plants are cultivated with high efficiency such as a plant factory. For this reason, the plant cultivation apparatus according to the aspect of the present disclosure contributes not only to the plant cultivation apparatus or the plant cultivation system business but also to various social activities and industrial activities such as agriculture, research and development, or school education using these. To do.

Abstract

La présente invention concerne un appareil de culture de plantes qui est pourvu de : un boîtier ayant un espace interne pour la culture de plantes ; un conduit de récupération d'air qui récupère l'air dans le boîtier et qui est raccordé à un trou de récupération dans le boîtier ; un dispositif de climatisation qui ajuste la température, l'humidité et la concentration de CO2 de l'air récupéré à partir du trou de récupération par l'intermédiaire du conduit de récupération d'air, lesdits paramètres étant ajustés à des conditions compatibles avec la culture de plantes ; et un conduit de distribution d'air qui relie le dispositif de climatisation et un trou de distribution dans le boîtier, et qui distribue l'air qui a été ajusté par le dispositif de climatisation dans le boîtier depuis le trou d'alimentation dans le boîtier.
PCT/JP2017/014328 2016-05-19 2017-04-06 Appareil de culture de plantes WO2017199621A1 (fr)

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JP2016-100667 2016-05-19
JP2016100667A JP2017205072A (ja) 2016-05-19 2016-05-19 植物栽培装置

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WO2017199621A1 true WO2017199621A1 (fr) 2017-11-23

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JP7009989B2 (ja) * 2017-12-28 2022-01-26 株式会社テヌート 植物の栽培装置
TWI707632B (zh) * 2019-01-16 2020-10-21 銥光農業科技股份有限公司 可控溫濕的氣流系統
JP7237353B2 (ja) * 2019-05-09 2023-03-13 伸和コントロールズ株式会社 植物栽培用空気調和システム、茸栽培用空気調和システム及び二酸化炭素濃度調整機能付き空気調和システム
US20220201945A1 (en) * 2019-05-09 2022-06-30 Shinwa Controls Co., Ltd Air conditioning system for plant cultivation, air conditioning system for mushroom cultivation, and air conditioning system with carbon dioxide concentration regulating function
JP2022057363A (ja) 2020-09-30 2022-04-11 Ｍｉｒａｉ株式会社 栽培環境制御装置

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JP2007071758A (ja) * 2005-09-08 2007-03-22 Horiba Ltd 光合成評価装置または評価方法
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JPH0837944A (ja) * 1994-07-26 1996-02-13 Komatsu Ltd 植物育成装置
JP2007071758A (ja) * 2005-09-08 2007-03-22 Horiba Ltd 光合成評価装置または評価方法
US20090158647A1 (en) * 2006-02-24 2009-06-25 Juergen Kleinwaechter Greenhouse, Greenhouse Covering, Filter System, Lighting System, Conducting System, Use and Feeder Apparatus
JP5871025B2 (ja) * 2014-04-28 2016-03-01 新菱冷熱工業株式会社 省エネルギー型植物栽培システム

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