Cultivation system

Abstract

To provide a cultivation system that can suppress initial investment and maintenance costs.SOLUTION: A mushroom cultivation system 10 includes: a plurality of multi-staged cultivation shelves 11; an indoor air conditioning device 16 that regulates temperature and humidity in a cultivation room 13; and a shelf air conditioning system 60 that regulates regulatory air for regulating temperature, humidity, and CO2 level in the cultivation space 17. The mushroom cultivation system 10 includes: a wind duct 71 with branch pipes 71c; blowers 72, blow pipes 73 and blow nozzles 74. The cultivation shelf 11 includes outlets 52 that allow the cultivation space 17 to communicate with the outside of the cultivation shelf 11. The blow nozzles 74 are arranged in the cultivation space 17 and blow the regulatory air into the cultivation space 17.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a cultivation system.

Background Art

[0002] A cultivation system is introduced into above-ground structures such as former factory sites, empty rooms in buildings, and empty warehouses to cultivate crops. For example, the plant cultivation system disclosed in Patent Document 1 includes a structure, a plant cultivation device, and indoor air-conditioning means.

[0003] The plant cultivation device includes an outer structure member and a plant cultivation line. The outer structure member is installed inside the structure. The outer structure member is separated from the inner wall of the structure. An equipment installation room is provided inside the outer structure member. The indoor air-conditioning means can air-condition the equipment installation room.

[0004] The plant cultivation line is installed inside the outer structure member. The plant cultivation line includes a growth space structure member, growth space air-conditioning means, and hydroponic cultivation means. The growth space structure member defines a growth space for growing plants inside. The growth space is divided into a plurality of stages in the vertical direction. The hydroponic cultivation means is installed in each of the divided spaces. The growth space air-conditioning means can air-condition the growth space.

[0005] In the plant cultivation system, the temperature and humidity inside the growth space are adjusted by the growth space air-conditioning means. The equipment installation room, which is outside the growth space structure member, is shielded from inside the structure and is air-conditioned by the indoor air-conditioning means. Therefore, the growth space is less affected by the surrounding environment where the plant cultivation device is installed.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] In order not to vary the cultivation conditions of plants at each stage partitioned within the cultivation space, it is necessary to air-condition the entire cultivation space collectively so that no temperature difference and humidity difference occur within the cultivation space. For such air-conditioning, the cultivation space air-conditioning means of Patent Document 1 needs to be large-scale and high-performance. As a result, in Patent Document 1, the initial investment cost and maintenance cost increase.

Means for Solving the Problems

[0008] Each aspect of the cultivation system for solving the above problems is described. [Aspect 1] A plurality of cultivation shelves installed in a cultivation room of a structure, the multi-stage cultivation shelves having a plurality of cultivation spaces in the vertical direction where cultivated plants are arranged, an indoor air-conditioning device for adjusting the temperature and humidity of the cultivation room, shelf air-conditioning equipment for adjusting conditioned air for adjusting the temperature, humidity, and CO2 concentration of the cultivation space, an air duct having a branch pipe into which the conditioned air adjusted by the shelf air-conditioning equipment is introduced and which distributes the conditioned air to each of the plurality of cultivation shelves, a blower connected to each branch pipe for sending out the conditioned air, a blower pipe connected to the blower and extending in the vertical direction of the cultivation shelf, and a plurality of blower nozzles connected to the blower pipe for sending the conditioned air into each of the plurality of cultivation spaces, wherein the cultivation shelf includes a partition board extending in the horizontal direction, the partition board on which the cultivated plants are placed, a shielding board surrounding the cultivation space from the side, and an exhaust port that opens between the shielding board and the partition board and communicates the cultivation space with the outside of the cultivation shelf, and the blower nozzle is arranged in the cultivation space and sends the conditioned air into the cultivation space. A cultivation system characterized by the above.

[0009] [Aspect 2] The cultivation system according to [Aspect 1], further comprising ventilation equipment including at least one of an air supply device for supplying outside air to the cultivation room and an exhaust device for exhausting the cultivation room, and a control device for controlling the operation of the indoor air-conditioning device, the shelf air-conditioning equipment, and the ventilation equipment.

[0010] [Aspect 3] A plurality of the air conditioners for shelves are provided, and the temperature, humidity, and CO2 concentration of the conditioned air are made different for each of the air conditioners for shelves. A plurality of cultivation shelves are provided in which the temperature, humidity, and CO2 concentration of the cultivation space are made different. According to the temperature, humidity, and CO2 concentration of the cultivation shelf, the conditioned air is individually sent into the cultivation space from the air duct through the branch pipe, the blower, the air supply pipe, and the air supply nozzle of the air conditioner for shelves. The cultivation system according to [Aspect 1] or [Aspect 2].

[0011] [Aspect 4] The cultivated plant is a mushroom, and the discharge port communicates the cultivation space with the outside of the cultivation shelf below the lower edge of the shielding plate in the cultivation space. The cultivation system according to any one of [Aspect 1] to [Aspect 3]. [Advantages of the Invention]

[0012] According to the present invention, the initial investment cost and the maintenance cost can be suppressed. [Brief Description of the Drawings]

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

BEST MODE FOR CARRYING OUT THE INVENTION

[0014] The cultivated plants cultivated in the cultivation system described below are leafy vegetables such as lettuce, spinach, basil, perilla, etc., angiosperms such as strawberries, wasabi, roses, carnations, etc., and mushrooms such as shiitake mushrooms, maitake mushrooms, enoki mushrooms, etc.

[0015] (First Embodiment) Hereinafter, among the cultivation systems, a first embodiment in which a mushroom cultivation system equipped with shiitake mushroom bed cultivation facilities is embodied will be described with reference to FIGS. 1 to 6.

[0016] <Mushroom Cultivation System> As shown in FIGS. 1 to 3, a mushroom cultivation system 10, which is an example of a cultivation system, is provided in an existing above-ground structure 12. Inside the structure 12, a cultivation room 13 and an air-conditioning room 14 are provided. The air-conditioning room 14 is a separate room from the cultivation room 13. There is a partition wall 15 between the cultivation room 13 and the air-conditioning room 14. An air duct opening 15a is formed in the partition wall 15. The air duct opening 15a penetrates the partition wall 15 in the wall thickness direction.

[0017] <Indoor Air-Conditioning Device and Indoor Ventilation Equipment> The mushroom cultivation system 10 is equipped with an indoor air-conditioning device 16 and indoor ventilation equipment 20. The indoor air-conditioning device 16 and the indoor ventilation equipment 20 are installed in the cultivation room 13. The indoor air-conditioning device 16 is a general air conditioner that can set the set temperature in the range of 20°C to 27°C. The indoor air-conditioning device 16 is used in the interior of production factories, commercial buildings, warehouses, school classrooms, etc. It is cheaper than a medium-temperature air conditioner, and when effectively using an empty warehouse or an old school building, an existing air conditioner is used. The medium-temperature air conditioner is used to control the air-conditioning environment of a plant factory, and is an air conditioner that can set the set temperature from 10°C in order to maintain and manage a temperature environment suitable for plant cultivation. The indoor air-conditioning device 16 adjusts the temperature and humidity in the cultivation room 13.

[0018] The indoor ventilation equipment 20 includes both an air supply device that supplies outside air to the cultivation chamber 13 and an exhaust device that exhausts the cultivation chamber 13. Note that the "outside air" is the air in the outdoor area S outside the structure 12. The indoor air conditioner 16 adjusts the temperature and humidity of the cultivation chamber 13 even when at least one of the exhaust of the cultivation chamber 13 and the air supply to the cultivation chamber 13 by the indoor ventilation equipment 20 is performed. And the temperature and humidity of the cultivation chamber 13 are adjusted only by the indoor air conditioner 16. Or the temperature, humidity, and CO2 concentration of the cultivation chamber 13 are adjusted by the indoor air conditioner 16 and the indoor ventilation equipment 20.

[0019] <Cultivation shelf> As shown in FIGS. 3 to 5, the mushroom cultivation system 10 includes a plurality of cultivation shelves 11. The plurality of cultivation shelves 11 are installed in the cultivation chamber 13. Each of the plurality of cultivation shelves 11 has a plurality of partition boards 30. Each of the plurality of partition boards 30 is an elongated plate shape extending in the horizontal direction. Each of the plurality of partition boards 30 is installed on the cultivation shelf 11 with the plate thickness direction of the partition board 30 as the vertical direction Z. The plurality of cultivation shelves 11 are arranged with the long side directions of the respective partition boards 30 aligned with each other among the plurality of cultivation shelves 11 and the short side directions of the respective partition boards 30 aligned with each other among the plurality of cultivation shelves 11. In the cultivation chamber 13, the direction in which the short side of the partition board 30 extends is defined as the width direction X. The width direction X coincides with the direction in which the plurality of cultivation shelves 11 are arranged. In the cultivation chamber 13, the direction in which the long side of the partition board 30 extends is defined as the depth direction Y. The depth direction Y is orthogonal to the width direction X. Note that the width direction X and the depth direction Y are in the horizontal direction. The plurality of cultivation shelves 11 are installed at equal intervals in the width direction X.

[0020] The cultivation shed 11 is defined with a plurality of cultivation spaces 17. Each of the plurality of cultivation spaces 17 is defined between a pair of partition boards 30 adjacent to each other in the vertical direction Z. For this reason, the plurality of cultivation spaces 17 are arranged side by side in the vertical direction Z of the cultivation shed 11. Therefore, the cultivation shed 11 is a multi-stage type having a plurality of cultivation spaces 17 in the vertical direction Z. Each of the plurality of cultivation spaces 17 extends between both ends in the depth direction Y of the cultivation shed 11 at each stage of the cultivation shed 11. In each of the plurality of cultivation spaces 17, among the pair of partition boards 30 that define one cultivation space 17, the lower partition board 30 has a mushroom bed 19 as a cultivated product placed thereon. The "mushroom bed" refers to a medium composed of sawdust, rice bran, nutrients, etc., which is bagged, sterilized, and then inoculated with mushroom spawn. The mushroom bed 19 is a mushroom bed of shiitake, which is an example of mushrooms. The mushroom bed 19 is arranged on the partition board 30 of the cultivation space 17.

[0021] The cultivation process of shiitake mushroom bed cultivation includes a cultivation period in which a sealed mushroom bed with inoculated spawn in a bagged medium is cultured under management at a temperature of around 20°C, a humidity of 60 - 70%, and a CO2 concentration of 2000 ppm or less, and after the cultivation period has elapsed, the sealed mushroom bed is taken out of the bag, and the exposed growing mushroom bed is grown under management at a temperature of 10 - 25°C, a humidity of around 80%, and a CO2 concentration of 2000 ppm or less. It also includes a harvesting date for harvesting the shiitake mushrooms generated from the growing mushroom bed, a growing period in which the exposed growing mushroom bed after harvesting is grown again under management at a temperature of 10 - 25°C, a humidity of around 80%, and a CO2 concentration of 2000 ppm or less, and a harvesting date for harvesting the shiitake mushrooms generated from the growing mushroom bed again. Therefore, the cultivation process of shiitake mushroom bed cultivation follows the flow of cultivation period → growing period → first harvesting date → growing period → second harvesting date → growing period → third harvesting date → disposal of the mushroom bed 19. Thus, the "mushroom bed 19" includes a sealed mushroom bed in a bag and an exposed growing mushroom bed.

[0022] Each of the plurality of cultivation shelves 11 is provided with a plurality of watering devices 21. The watering devices 21 are arranged in each cultivation space 17 of the cultivation shelf 11. The number of watering devices 21 arranged in one cultivation space 17 may be one or a plurality. The watering devices 21 water the entire cultivation space 17. For the outer periphery of the exposed growing bed, sufficient water supply is important so as not to dry out the growing bed. Water is supplied to the growing bed by the watering of the watering devices 21. Note that the water supply to the growing bed may be by a method other than watering by the watering devices 21 as long as water can be supplied to the growing bed. For example, the water supply to the growing bed may be performed by immersing the growing bed in a water tank.

[0023] <First to Fourth shielding plates> As shown in FIGS. 2, 4, and 5, each of the plurality of cultivation shelves 11 has a first shielding plate 41, a second shielding plate 42, a third shielding plate 43, and a fourth shielding plate 44. Each of the first to fourth shielding plates 41 to 44 is, for example, a reflective sheet having heat insulation properties. The first to fourth shielding plates 41 to 44 surround each cultivation space 17 from the side. Each of the plurality of cultivation spaces 17 is individually surrounded by the first to fourth shielding plates 41 to 44.

[0024] The first shielding plate 41 is arranged on one side of both sides in the width direction X of the cultivation shelf 11 at each stage of the cultivation shelf 11, and the second shielding plate 42 is arranged on the other side in the width direction X of the cultivation shelf 11 at each stage of the cultivation shelf 11.

[0025] Of the pair of partition plates 30 that define one cultivation space 17, the upper partition plate 30 is the upper partition plate, and the lower partition plate 30 is the lower partition plate. The growing bed 19 is placed on this lower partition plate. The first shielding plate 41 and the second shielding plate 42 are arranged closer to the upper partition plate than the lower partition plate in the vertical direction Z. Each of the upper end edges of the first shielding plate 41 and the second shielding plate 42 overlaps the upper partition plate in the width direction X. Each of the lower end edges of the first shielding plate 41 and the second shielding plate 42 is slightly separated upward from the lower partition plate.

[0026] When looking at the cultivation shed 11 in the width direction X, there are gaps between the lower edge of the first shielding plate 41 and the upper edge of the lower partition board, and between the lower edge of the second shielding plate 42 and the upper edge of the lower partition board. These gaps open as discharge ports 52. The discharge ports 52 are below the lower edge of the first shielding plate 41 and below the lower edge of the second shielding plate 42, and communicate the cultivation space 17 with the outside of the cultivation shed 11. The discharge ports 52 open throughout the depth direction Y of the cultivation shed 11. Both sides in the width direction X of each cultivation space 17 are shielded by the first shielding plate 41 and the second shielding plate 42 except for the discharge ports 52.

[0027] In each stage of the cultivation shed 11, the third shielding plate 43 and the fourth shielding plate 44 face each other in the depth direction Y. The lower edges of the third shielding plate 43 and the fourth shielding plate 44 overlap the lower partition board in the depth direction Y. The upper edges of the third shielding plate 43 and the fourth shielding plate 44 overlap the upper partition board in the depth direction Y. Both sides in the depth direction Y of each cultivation space 17 are shielded by the third shielding plate 43 and the fourth shielding plate 44. Each cultivation space 17 is an individual space defined by the first to fourth shielding plates 41 to 44. And each cultivation space 17 is separated from the cultivation room 13 by the first to fourth shielding plates 41 to 44.

[0028] As shown in FIGS. 1 and 2, the mushroom cultivation system 10 includes a shed air-conditioning facility 60 and a blowing facility 70. <Shed air-conditioning facility> The shed air-conditioning facility 60 is installed in the air-conditioning room 14 of the structure 12. The shed air-conditioning facility 60 includes a shed air-conditioning device 61, a humidifier 62, and an air-conditioning room ventilation facility 65. The shed air-conditioning device 61 is a medium-temperature air conditioner that can set the set temperature from 10°C. The shed air-conditioning device 61 adjusts the temperature and humidity of the air-conditioning room 14. The humidifier 62 humidifies the air-conditioning room 14. The temperature and humidity of the air-conditioning room 14 are adjusted by the shed air-conditioning device 61 alone, the humidifier 62 alone, or both the shed air-conditioning device 61 and the humidifier 62.

[0029] The ventilation equipment 65 for the air-conditioned room is installed in the air-conditioned room 14 of the structure 12. The ventilation equipment 65 for the air-conditioned room includes both an air supply device for supplying outside air to the air-conditioned room 14 and an exhaust device for exhausting the air-conditioned room 14. Since the CO2 concentration of the outside air is around 400 ppm, when the CO2 concentration in the air-conditioned room 14 is as high as about 2000 ppm, by supplying 400 ppm of outside air to the air-conditioned room 14 and exhausting the air in the air-conditioned room 14 with a CO2 concentration of 2000 ppm, the CO2 concentration in the air-conditioned room 14 will decrease. When at least one of the exhaust of the air-conditioned room 14 and the air supply to the air-conditioned room 14 by the ventilation equipment 65 for the air-conditioned room is performed, the air-conditioned room 14 is ventilated and the CO2 concentration decreases. Therefore, when at least one of the exhaust of the air-conditioned room 14 and the air supply to the air-conditioned room 14 by the ventilation equipment 65 for the air-conditioned room is performed, the air-conditioning equipment 60 for the shelves adjusts the CO2 concentration in the air-conditioned room 14 to a desired value. Then, the temperature, humidity, and CO2 concentration of the air-conditioned room 14 are adjusted by the shelf air-conditioning device 61, the humidifier 62, and the ventilation equipment 65 for the air-conditioned room. Hereinafter, the air with a temperature, humidity, and CO2 concentration suitable for the cultivation and growth of the mushroom bed 19 will be referred to as [conditioned air]. And the air-conditioning equipment 60 for the shelves adjusts the conditioned air for adjusting the temperature, humidity, and CO2 concentration of the cultivation space 17 in the air-conditioned room 14.

[0030] <Air supply equipment> The air supply equipment 70 sends the conditioned air from the air-conditioned room 14 to each cultivation shelf 11. The air supply equipment 70 includes an air duct 71, a plurality of air blowers 72, a plurality of air supply pipes 73, and a plurality of air supply nozzles 74. The air supply equipment 70 may include a humidifier 75 for the air supply equipment.

[0031] <Air duct> The air duct 71 includes one main duct 71a, one extension duct 71b, and a plurality of branch ducts 71c. The first end of the main duct 71a is connected to the partition wall 15, and the extension duct 71b is connected to the second end of the main duct 71a. The axis of the main duct 71a extends in the depth direction Y. The first end of the main duct 71a communicates with the air inlet 15a, and the second end of the main duct 71a communicates with the extension duct 71b. The axis of the extension duct 71b is orthogonal to the axis of the main duct 71a and extends in the width direction X. The extension duct 71b extends on both sides of the width direction X with the main duct 71a as the center.

[0032] The first end of each of the plurality of branch ducts 71c is connected to the extension duct 71b, and the second end is closed. The first end of each branch duct 71c communicates with the extension duct 71b. Each of the plurality of branch ducts 71c is arranged on the ceiling surface of the cultivation shelf 11. The ceiling surface of the cultivation shelf 11 is formed by the partition board 30 arranged at the upper end of the cultivation shelf 11. Then, the conditioned air adjusted in the air-conditioning room 14 is introduced into the air duct 71 from the first end of the main duct 71a through the air inlet 15a. The conditioned air flowing into the air duct 71 flows through the main duct 71a and into the extension duct 71b. The conditioned air flowing into the extension duct 71b flows into each branch duct 71c. Therefore, the air duct 71 has branch ducts 71c into which the conditioned air adjusted by the shelf air-conditioning facility 60 is introduced and which distribute the conditioned air to each of the cultivation shelves 11.

[0033] <Blower> The blower 72 communicates with each branch duct 71c. Four blowers 72 communicate with each branch duct 71c. Note that the number of blowers 72 communicating with the branch duct 71c may be changed according to the length of the cultivation shelf 11 in the depth direction Y. The shorter the length of the cultivation shelf 11 in the depth direction Y, the smaller the number of blowers 72 communicating with the branch duct 71c. Conversely, the longer the length of the cultivation shelf 11 in the depth direction Y, the larger the number of blowers 72 communicating with the branch duct 71c. The four blowers 72 communicating with the branch duct 71c are installed at equal intervals in the depth direction Y. Note that the blower 72 may be installed inside the branch duct 71c and communicate with the branch duct 71c to send out the conditioned air.

[0034] <Air supply pipe> As shown in FIGS. 3 and 4, the air supply pipe 73 is connected to the air blower 72. The air supply pipe 73 is disposed inside the cultivation shelf 11, specifically, on the inner surface side of the first shielding plate 41. Therefore, the air supply pipe 73 is disposed within each cultivation space 17. The air supply pipe 73 extends throughout the entire vertical direction Z of the cultivation shelf 11 along the inner surface of the first shielding plate 41. Further, the air supply pipe 73 penetrates the partition plate 30 in the vertical direction Z except for the partition plate 30 at the lower end. A plurality of air supply pipes 73 are arranged at equal intervals in the depth direction Y. Then, the air blower 72 sends out the conditioned air sent into the branch pipe 71c to the air supply pipe 73.

[0035] <Air supply nozzle> The air supply nozzle 74 is connected to the air supply pipe 73. A plurality of air supply nozzles 74 are connected to each of the plurality of air supply pipes 73. Each of the plurality of air supply nozzles 74 extends from the air supply pipe 73 in the depth direction Y.

[0036] As shown in FIG. 5, the air supply nozzle 74 is disposed inside the cultivation shelf 11, specifically, on the inner surface side of the first shielding plate 41. The air supply nozzle 74 is disposed within each cultivation space 17. One air supply nozzle 74 is installed in each cultivation space 17. The air supply nozzle 74 is installed close to the upper partition plate of the cultivation space 17 and below the upper partition plate. Then, the conditioned air sent into the air supply pipe 73 jets out from the air supply nozzle 74. The conditioned air jetted out from the air supply nozzle 74 is sent into the cultivation space 17. Therefore, the air supply nozzle 74 sends the conditioned air into the cultivation space 17.

[0037] As described above, the air supply pipes 73 are arranged at equal intervals in the depth direction Y. The air supply nozzles 74 are connected to each air supply pipe 73. Therefore, conditioned air is sent into each cultivation space 17 at equal intervals by a plurality of air supply nozzles 74. For this reason, the conditioned air is sent throughout the entire depth direction Y of each cultivation space 17.

[0038] <Humidifier for air supply equipment> As shown in FIG. 2, the humidifier 75 for the air supply facility is installed in each branch pipe 71c. The humidifier 75 for the air supply facility is installed close to the first end near the extension pipe 71b among both ends of the branch pipe 71c. The humidifier 75 for the air supply facility humidifies the conditioned air sent into the branch pipe 71c.

[0039] <Control device> As shown in FIG. 6, the mushroom cultivation system 10 includes a control device 80. The control device 80 controls the operations of the indoor air conditioner 16, the shelf air conditioner 61, the humidifier 62, the indoor ventilation facility 20, the ventilation facility 65 for the air-conditioned room, and the humidifier 75 for the air supply facility. The control device 80 includes an indoor air-conditioning controller 81, a shelf air-conditioning controller 82, a ventilation controller 83, and a general controller 84.

[0040] The indoor air-conditioning controller 81 outputs a control signal to the indoor air conditioner 16. The shelf air-conditioning controller 82 outputs a control signal to the shelf air conditioner 61, the humidifier 62, and the humidifier 75 for the air supply facility. The ventilation controller 83 outputs a control signal to the indoor ventilation facility 20 and the ventilation facility 65 for the air-conditioned room. The general controller 84 outputs a control signal to the indoor air-conditioning controller 81, the shelf air-conditioning controller 82, and the ventilation controller 83. The general controller 84 comprehensively controls the indoor air-conditioning controller 81, the shelf air-conditioning controller 82, and the ventilation controller 83.

[0041] Each of the indoor air conditioner controller 81, the shelf air conditioner controller 82, the ventilation controller 83, and the overall controller 84 includes a processor and a storage unit. As the processor, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), or a DSP (Digital Signal Processor) is used. The storage unit includes a RAM (Random Access Memory) and a ROM (Read Only Memory). The storage unit stores program codes or instructions configured to cause the processor to execute processing. The storage unit, that is, the computer-readable medium, includes any available medium accessible by a general-purpose or dedicated computer. Each of the controllers 81, 82, 83, 84 may be configured by a hardware circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). Each of the controllers 81, 82, 83, 84, which are processing circuits, may include one or more processors operating according to a computer program, one or more hardware circuits such as an ASIC or an FPGA, or a combination thereof.

[0042] The mushroom cultivation system 10 includes an indoor temperature sensor 91, an indoor humidity sensor 92, an outside air temperature sensor 93, a shelf temperature sensor 94, a shelf humidity sensor 95, a shelf CO2 concentration sensor 96, and an indoor CO2 concentration sensor 97. Each of the indoor temperature sensor 91, the indoor humidity sensor 92, the outside air temperature sensor 93, the shelf temperature sensor 94, the shelf humidity sensor 95, the shelf CO2 concentration sensor 96, and the indoor CO2 concentration sensor 97 is electrically connected to the control device 80.

[0043] The indoor temperature sensor 91 detects the temperature in the cultivation chamber 13. Information regarding the temperature detected by the indoor temperature sensor 91 is input to the control device 80. The indoor humidity sensor 92 detects the humidity in the cultivation chamber 13. Information regarding the humidity detected by the indoor humidity sensor 92 is input to the control device 80. The outside air temperature sensor 93 detects the outside air temperature outside S. Information regarding the outside air temperature detected by the outside air temperature sensor 93 is input to the control device 80. The indoor CO2 concentration sensor 97 detects the CO2 concentration in the cultivation chamber 13. Information regarding the CO2 concentration detected by the indoor CO2 concentration sensor 97 is input to the control device 80.

[0044] The shelf temperature sensor 94 detects the temperature in the cultivation space 17. Information regarding the temperature detected by the shelf temperature sensor 94 is input to the control device 80. The shelf temperature sensor 94 measures the temperature in the medium of the sealed mushroom bed in the bagged state in order to observe the cultivation state of the mushroom bed 19. In order to observe the cultivation state of the sealed mushroom bed, the shelf temperature sensor 94 may detect with a temperature sensor inserted into the medium of the sealed mushroom bed, or may detect the surface temperature of the medium with an infrared camera from outside the bag containing the sealed mushroom bed.

[0045] The shelf humidity sensor 95 detects the humidity in the cultivation space 17. Information regarding the humidity detected by the shelf humidity sensor 95 is input to the control device 80. The shelf CO2 concentration sensor 96 detects the CO2 concentration in the cultivation space 17. Information regarding the CO2 concentration detected by the shelf CO2 concentration sensor 96 is input to the control device 80.

[0046] The storage unit of the overall controller 84 stores an air conditioning program. The air conditioning program is a program that controls the indoor air conditioning controller 81, the shelf air conditioning controller 82, and the ventilation controller 83 in order to adjust the temperature, humidity, and CO2 concentration in the cultivation space 17 to values suitable for the cultivation and growth of the mushroom bed 19.

[0047] Based on the detection results of the indoor temperature sensor 91, indoor humidity sensor 92, outdoor air temperature sensor 93, shelf temperature sensor 94, shelf humidity sensor 95, shelf CO2 concentration sensor 96, and indoor CO2 concentration sensor 97, the overall controller 84 outputs control commands to the indoor air-conditioning controller 81, shelf air-conditioning controller 82, and ventilation controller 83 according to the air-conditioning program.

[0048] Based on the control commands according to the air-conditioning program, the indoor air-conditioning controller 81 controls the operation of the indoor air-conditioning device 16. Also, based on the control commands according to the air-conditioning program, the shelf air-conditioning controller 82 controls the operation of the shelf air-conditioning device 61, humidifier 62, and air blower facility humidifier 75. Further, based on the control commands according to the air-conditioning program, the ventilation controller 83 controls the operation of the indoor ventilation facility 20 and the air-conditioning room ventilation facility 65.

[0049] <Air Conditioning of the Mushroom Cultivation System> Next, the air conditioning of the cultivation room 13 and the cultivation space 17 by the mushroom cultivation system 10 will be described. <Adjustment of Temperature and Humidity in the Cultivation Room> The overall controller 84 performs control to adjust the temperature, humidity, and CO2 concentration in the cultivation room 13 to predetermined values. The temperature of the cultivation room 13 is adjusted to a temperature such that the difference between the outdoor air temperature and the temperature in the cultivation space 17 does not become too large. Also, the humidity of the cultivation room 13 is adjusted to a humidity such that the difference between the humidity outside S and the humidity in the cultivation space 17 does not become too large. The temperature and humidity in the cultivation room 13 are maintained constant.

[0050] During the above adjustment, the overall controller 84 outputs a control command to the indoor air-conditioning controller 81. The indoor air-conditioning controller 81 operates the indoor air-conditioning device 16 based on the detection results of the indoor temperature sensor 91 and the indoor humidity sensor 92.

[0051] In addition, when the overall controller 84 adjusts the temperature and humidity of the cultivation chamber 13 along with the ventilation of the cultivation chamber 13, it outputs a control command to the indoor air conditioner controller 81 and the ventilation controller 83. The indoor air conditioner controller 81 operates the indoor air conditioner 16 based on the detection results of the indoor temperature sensor 91, the indoor humidity sensor 92, and the outside air temperature sensor 93. Also, the ventilation controller 83 operates the indoor ventilation equipment 20 based on the detection result of the indoor CO2 concentration sensor 97. The indoor ventilation equipment 20 supplies outside air from the outside S to the cultivation chamber 13 and exhausts the air in the cultivation chamber 13 from the cultivation chamber 13.

[0052] Here, when the outside air temperature of the outside S is high, the indoor air conditioner controller 81 adjusts the temperature setting of the indoor air conditioner 16 to lower the temperature of the cultivation chamber 13. As a result, the temperature of the cultivation chamber 13 is adjusted to a desired value from the outside air and the air in the cultivation chamber 13. On the other hand, when the outside air temperature of the outside S is low, the indoor air conditioner controller 81 adjusts the temperature setting of the indoor air conditioner 16 to raise the temperature of the cultivation chamber 13. As a result, the temperature of the cultivation chamber 13 is adjusted to a desired value from the outside air and the air in the cultivation chamber 13. In addition, when the humidity of the cultivation chamber 13 decreases with ventilation, the shelf air conditioner controller 82 operates the shelf air conditioner 61 and the humidifier 62 to raise the humidity of the cultivation chamber 13.

[0053] <Adjustment of CO2 Concentration in Cultivation Chamber> The CO2 concentration in the cultivation chamber 13 is adjusted to a CO2 concentration suitable for the cultivation and growth of the mushroom bed 19. The overall controller 84 outputs a control command to the ventilation controller 83 to adjust the CO2 concentration in the cultivation chamber 13. The ventilation controller 83 operates the indoor ventilation equipment 20 based on the detection result of the indoor CO2 concentration sensor 97.

[0054] Specifically, a large amount of CO2 gas is generated from the mushroom bed 19. When the CO2 concentration detected by the indoor CO2 concentration sensor 97 exceeds a predetermined value, the overall controller 84 outputs a control command to the ventilation controller 83. The ventilation controller 83 operates the indoor ventilation equipment 20. Then, the air in the cultivation chamber 13 is exhausted from the cultivation chamber 13 to the outside S by the indoor ventilation equipment 20, and at the same time, the outside air of the outside S is supplied to the cultivation chamber 13. As a result, the CO2 concentration in the cultivation chamber 13 decreases. And when the CO2 concentration detected by the indoor CO2 concentration sensor 97 drops to the reference value, the ventilation controller 83 stops the operation of the indoor ventilation equipment 20.

[0055] As described above, when ventilating the cultivation chamber 13 to reduce the CO2 concentration, depending on the outside air temperature, the overall controller 84 makes the control of the indoor air conditioner 16 by the indoor air conditioner controller 81 different.

[0056] When the outside air temperature is higher than that of the cultivation chamber 13, when ventilating by the indoor ventilation equipment 20, warm air is supplied to the cultivation chamber 13. For this reason, before the overall controller 84 operates the indoor ventilation equipment 20 by the ventilation controller 83, the temperature setting of the indoor air conditioner 16 is adjusted by the indoor air conditioner controller 81 to adjust the temperature of the cultivation chamber 13. Specifically, the indoor air conditioner controller 81 adjusts the temperature of the indoor air conditioner 16 to a temperature lower than before ventilation. Thereby, the temperature of the cultivation chamber 13 becomes lower than before ventilation.

[0057] Conversely, when the outside air temperature is lower than that of the cultivation chamber 13, when ventilating by the indoor ventilation equipment 20, cold air is supplied to the cultivation chamber 13. For this reason, before the overall controller 84 operates the indoor ventilation equipment 20 by the ventilation controller 83, the temperature setting of the indoor air conditioner 16 is adjusted by the indoor air conditioner controller 81 to adjust the temperature of the cultivation chamber 13. Specifically, the indoor air conditioner controller 81 adjusts the temperature of the indoor air conditioner 16 to a temperature higher than before ventilation. Thereby, the temperature of the cultivation chamber 13 becomes higher than before ventilation.

[0058] As a result, even if the cultivation chamber 13 is ventilated, the temperature of the cultivation chamber 13 is maintained at the temperature before ventilation. Therefore, even if the cultivation chamber 13 is ventilated to reduce the CO2 concentration in the cultivation chamber 13, fluctuations in the temperature of the cultivation chamber 13 are suppressed to a small level.

[0059] <Air conditioning of the cultivation space> The overall controller 84 performs control to adjust the temperature, humidity, and CO2 concentration in the cultivation space 17 to predetermined values. The temperature, humidity, and CO2 concentration in the cultivation space 17 are adjusted to respective temperatures, humidity, and CO2 concentrations suitable for culturing and growing the mushroom bed 19.

[0060] During the above adjustment, the overall controller 84 outputs a control command to the shelf air conditioning controller 82. The shelf air conditioning controller 82 operates the shelf air conditioning device 61, the ventilation equipment 65 for the air conditioning chamber, the humidifier 62, and the humidifier 75 for the air supply equipment based on the detection results of the shelf temperature sensor 94, the shelf humidity sensor 95, and the shelf CO2 concentration sensor 96.

[0061] When the overall controller 84 adjusts the temperature, humidity, and CO2 concentration in the cultivation space 17 while adjusting the temperature, humidity, and CO2 concentration in the air conditioning chamber 14 with ventilation of the air conditioning chamber 14, the overall controller 84 outputs control commands to the shelf air conditioning controller 82 and the ventilation controller 83. At this time, the shelf air conditioning controller 82 operates the shelf air conditioning device 61, the humidifier 62, and the humidifier 75 for the air supply equipment, and the ventilation controller 83 operates the ventilation equipment 65 for the air conditioning chamber. The ventilation equipment 65 for the air conditioning chamber supplies outside air from the outside S to the air conditioning chamber 14 and exhausts the air in the air conditioning chamber 14 from the air conditioning chamber 14.

[0062] Here, when the outside air temperature of the outdoor area S is high, the shelf air conditioner controller 82 adjusts the temperature setting of the shelf air conditioner 61 to lower the temperature of the air-conditioned room 14. As a result, the temperature of the air-conditioned room 14 is adjusted to a desired value from the outside air and the air in the air-conditioned room 14, and at the same time, the temperature of the cultivation space 17 is adjusted to a desired value. On the other hand, when the outside air temperature of the outdoor area S is low, the shelf air conditioner controller 82 adjusts the temperature setting of the shelf air conditioner 61 to raise the temperature of the air-conditioned room 14. As a result, the temperature of the air-conditioned room 14 is adjusted to a desired value from the outside air and the air in the air-conditioned room 14, and at the same time, the temperature of the cultivation space 17 is adjusted to a desired value.

[0063] In general, since the humidity of the outdoor area S is lower than that of the cultivation space 17, the shelf air conditioner controller 82 always operates the humidifier 62 to maintain the humidity of the air-conditioned room 14 and the cultivation space 17 at a desired humidity. Further, the shelf air conditioner controller 82 may operate the humidifier 75 for the ventilation equipment to maintain the humidity of the cultivation space 17 at a desired humidity.

[0064] And the overall controller 84 comprehensively controls the indoor air conditioner controller 81, the shelf air conditioner controller 82, and the ventilation controller 83, and interlocks the indoor air conditioner 16, the shelf air conditioner 61, the humidifier 62, the humidifier 75 for the ventilation equipment, the indoor ventilation equipment 20, and the air-conditioned room ventilation equipment 65. Thereby, the temperature, humidity, and CO2 concentration of the cultivation room 13 and the temperature, humidity, and CO2 concentration of the cultivation space 17 are adjusted to desired values.

[0065] <Operation of the Embodiment> In the mushroom cultivation system 10, the temperature, humidity, and CO2 concentration of the cultivation room 13 are adjusted by the indoor air conditioner 16 and the indoor ventilation equipment 20. Thereby, the differences between the temperature, humidity, and CO2 concentration of the outdoor area S and the temperature, humidity, and CO2 concentration of the cultivation space 17 are kept small.

[0066] In addition, by the shelf air conditioner 61, the humidifier 62, the humidifier 75 for the air blower equipment, and the ventilation equipment 65 for the air-conditioned room, the air in the air-conditioned room 14 is adjusted to a temperature, humidity, and CO2 concentration suitable for each of the cultivation and growth of the mushroom bed 19.

[0067] Then, the conditioned air adjusted in the air-conditioned room 14 is introduced into the main pipe 71a of the air duct 71 through the air guide port 15a. The conditioned air flowing into the main pipe 71a flows into each branch pipe 71c through the extension pipe 71b. Each of the plurality of air blowers 72 communicating with each branch pipe 71c sends the conditioned air to the air supply pipe 73. The conditioned air sent to the air supply pipe 73 jets out from each air supply nozzle 74. The conditioned air jetted out from the air supply nozzle 74 is sent into the cultivation space 17. The conditioned air sent into the cultivation space 17 is discharged to the outside of the cultivation space 17 through the discharge port 52. As a result, for each cultivation space 17, the temperature, humidity, and CO2 concentration are adjusted to a temperature, humidity, and CO2 concentration suitable for each of the cultivation and growth of the mushroom bed 19.

[0068] <Effects of the First Embodiment> In the first embodiment, the following effects can be obtained. (1-1) In the mushroom cultivation system 10, the temperature and humidity of the cultivation room 13 are adjusted by the indoor air conditioner 16, and the temperature, humidity, and CO2 concentration of the cultivation space 17 are adjusted by the shelf air conditioning equipment 60. And by adjusting the temperature and humidity of the cultivation room 13, the influence of the temperature and humidity of the outside S on the temperature and humidity of the cultivation space 17 can be suppressed to a low level. As a result, the environment of the cultivation space 17 can be maintained and managed in an environment suitable for the cultivation and growth of the mushroom bed 19.

[0069] Also, the conditioned air is sent into the cultivation space 17 through the air duct 71, the air blower 72, the air supply pipe 73, and the air supply nozzle 74. At this time, the cultivation space 17 is an individual space surrounded by the first to fourth shielding plates 41 to 44. Therefore, each of the plurality of cultivation spaces 17 in the vertical direction Z can be individually air-conditioned by the conditioned air. As a result, it is possible to suppress the occurrence of temperature differences, humidity differences, and CO2 concentration differences between the plurality of cultivation spaces 17 of the cultivation shelf 11.

[0070] As a result, for example, compared with the case where only the shelf air conditioner 61 cools a plurality of cultivation spaces 17 in the vertical direction Z collectively, the shelf air conditioner 61 can be made smaller in scale. Therefore, the initial investment cost and maintenance cost of the mushroom cultivation system 10 can be suppressed.

[0071] (1-2) The shelf air conditioner 61 employs a medium-temperature air conditioner. However, compared with the case where only the shelf air conditioner 61 cools a plurality of cultivation spaces 17 in the vertical direction Z collectively, a smaller-scale medium-temperature air conditioner can be adopted.

[0072] (1-3) In the cultivation shelf 11, each of the plurality of cultivation spaces 17 is surrounded by the first to fourth shielding plates 41 to 44. In addition, an exhaust port 52 is provided in each of the plurality of cultivation spaces 17. Then, when conditioned air is sent into the cultivation space 17 from the air supply nozzle 74, the conditioned air flows from above to below in the cultivation space 17 and is exhausted from the cultivation space 17 through the exhaust port 52. Therefore, it is possible to prevent air from staying in the cultivation space 17. As a result, the temperature, humidity, and CO2 concentration in the cultivation space 17 can be adjusted to the temperature, humidity, and CO2 concentration based on the conditioned air.

[0073] (1-4) The air conditioning by the indoor air conditioner 16 may be carried out to such an extent that the temperature difference and humidity difference between the outdoor S and the cultivation space 17 can be reduced. For this reason, as the indoor air conditioner 16, a general air conditioner whose set temperature can be set in the range of 20°C to 27°C can be used. Therefore, since an air conditioner cheaper than the medium-temperature air conditioner can be used as the indoor air conditioner 16, the initial investment cost and maintenance cost of the indoor air conditioner 16 can be kept low.

[0074] (1-5) The cultivation space 17 is separated from the cultivation chamber 13 by the first to fourth shielding plates 41 to 44. Therefore, it is possible to reduce the fluctuations in the temperature, humidity, and CO2 concentration in the cultivation space 17 that are affected by the temperature, humidity, and CO2 concentration in the cultivation chamber 13.

[0075] (1-6) A humidifier 75 for the air supply facility is installed in the branch pipe 71c of the air duct 71. The humidifier 75 for the air supply facility can humidify the conditioned air sent from the extension pipe 71b to the branch pipe 71c. Therefore, the conditioned air ejected from the air supply nozzles 74 of the cultivation shelf 11 is also humidified. Thus, by providing the humidifier 75 for the air supply facility in the branch pipe 71c, it is easy to humidify the cultivation space 17.

[0076] (1-7) The air supply nozzles 74 are arranged above the cultivation space 17. And the air supply nozzles 74 send the conditioned air into the cultivation space 17. The discharge port 52 communicates the cultivation space 17 with the outside below the lower edge of the first shielding plate 41 and the lower edge of the second shielding plate 42 in the cultivation space 17. Since the CO2 gas generated from the fungus bed 19 is heavier than air, it stays below the cultivation space 17. And when the conditioned air flows into the cultivation space 17 from the air supply nozzles 74, the conditioned air flows from above the cultivation space 17 to the discharge port 52 below. Therefore, it is easy to discharge the CO2 gas staying in the cultivation space 17 from the discharge port 52. As a result, while efficiently discharging the CO2 gas filling the cultivation space 17 from the cultivation space 17, wasteful discharge of the conditioned air can be suppressed, so that the temperature, humidity, and CO2 concentration of the cultivation space 17 can be maintained and managed.

[0077] (1-8) When the CO2 concentration in the cultivation room 13 rises, the overall controller 84 operates the indoor ventilation facility 20 by the ventilation controller 83. Then, the air in the cultivation room 13 can be exhausted to the outside S to lower the CO2 concentration. And when ventilating by the indoor ventilation facility 20, by adjusting the temperature setting of the indoor air conditioner 16 according to the outside air temperature, the fluctuation of the temperature in the cultivation room 13 can be suppressed to a small extent. Therefore, while ventilating the cultivation room 13 by the indoor ventilation facility 20, the influence on the temperature of the cultivation space 17 can be suppressed to a low level.

[0078] (1-9) The cultivation room 13 can be ventilated by the indoor ventilation equipment 20, and the air-conditioning room 14 can be ventilated by the air-conditioning room ventilation equipment 65. When the air-conditioning of the cultivation room 13 and the air-conditioning room 14 can be achieved along with this ventilation, it is not necessary to operate the indoor air-conditioning device 16 and the shelf air-conditioning device 61. As a result, the cost required for the air-conditioning of the cultivation room 13 and the air-conditioning room 14 can be reduced.

[0079] (1-10) The cultivation room 13 and the cultivation space 17 are separated by the first to fourth shielding plates 41 to 44. And the conditioned air adjusted in the air-conditioning room 14 is individually sent into the cultivation space 17 through the air supply equipment 70. For this reason, even if the cultivation room 13 is ventilated, fluctuations in the temperature, humidity, and CO2 concentration of the cultivation space 17 can be suppressed. Also, even if the air-conditioning room 14 is ventilated, the conditioned air adjusted in the air-conditioning room 14 is individually sent into the cultivation space 17 through the air supply equipment 70. For this reason, fluctuations in the temperature, humidity, and CO2 concentration of the cultivation space 17 can be suppressed.

[0080] (Second Embodiment) Next, a second embodiment in which the plant cultivation system is embodied in the cultivation system will be described with reference to FIGS. 7 to 8. In the second embodiment, detailed descriptions of the same parts as those in the first embodiment will be omitted.

[0081] As shown in FIGS. 7 and 8, a plant cultivation system 100, which is an example of the cultivation system, is provided in a plant cultivation factory 102. Inside the plant cultivation factory 102, a cultivation room 13 and an air-conditioning room 14 are provided. Regarding the cultivation room 13 and the air-conditioning room 14, differences from the first embodiment will be described, and descriptions of the same parts will be omitted.

[0082] <Cultivated Plants> The plant 108 as a crop is a leafy vegetable such as lettuce, spinach, basil, perilla, etc., or an angiosperm such as strawberry, wasabi, rose, carnation, etc. A cultivation container 109 is accommodated in the cultivation shelf 11. The plant 108 is fixed to the cultivation container 109. The cultivation container 109 is, for example, a cultivation pallet. Note that the cultivation container 109 may be provided with a trough 110 for sending the nutrient solution supplied to the plant 108.

[0083] When looking at the plant cultivation system 100 in the width direction X, gaps are formed between the upper edge of the first shielding plate 41 and the lower edge of the upper partition plate, and between the upper edge of the second shielding plate 42 and the lower edge of the upper partition plate. Those gaps are open as discharge ports 52. The air supply nozzle 74 is installed above the lower partition plate of the cultivation space 17 close to the lower partition plate.

[0084] <Lighting device for cultivation shelf> Each of the plurality of cultivation shelves 11 is provided with a lighting device 22. The lighting device 22 irradiates light to the plant 108. The lighting device 22 is arranged above each cultivation space 17 at each stage of the cultivation shelf 11. The lighting device 22 is composed of, for example, light-emitting diodes (LEDs), fluorescent lamps, mercury lamps, etc. The lighting device 22 irradiates light of a predetermined wavelength necessary for the photosynthesis of the plant 108 toward the plant 108. Note that the arrangement of the lighting device 22, the type of the lighting device 22, and the wavelength of the light may be appropriately changed according to the type of the plant 108 and the arrangement of the cultivation container 109.

[0085] <Plant cultivation system> Similar to the first embodiment, the plant cultivation system 100 includes an indoor air conditioner 16, an indoor ventilation facility 20 (not shown), a shelf air conditioner 60, a ventilation facility 70, and a control device 80 (not shown).

[0086] The shelf air conditioning equipment 60 of the plant cultivation system 100 includes, in addition to the shelf air conditioner 61, the humidifier 62, and the ventilation equipment 65 for the air conditioning room, a CO2 gas supply device 63 and a dehumidifier 64. The CO2 gas supply device 63 supplies CO2 gas to the air conditioning room 14. The dehumidifier 64 dehumidifies the air conditioning room 14. The shelf air conditioning equipment 60 adjusts the temperature, humidity, and CO2 concentration of the air conditioning room 14 by the shelf air conditioner 61, the humidifier 62, the CO2 gas supply device 63, the dehumidifier 64, and the ventilation equipment 65 for the air conditioning room.

[0087] The humidifier 62 is provided with an ethylene gas removal device 62a. The ethylene gas removal device 62a removes ethylene gas from the air. Although not shown in the figure, the CO2 gas supply device 63 and the dehumidifier 64 are electrically connected to the control device 80. The shelf air conditioning controller 82 controls the operation of the CO2 gas supply device 63 and the dehumidifier 64 according to a control command from the overall controller 84.

[0088] Since the plant 108 performs photosynthesis using CO2, the CO2 concentration in the cultivation space 17 decreases. When the CO2 concentration detected by the shelf CO2 concentration sensor 96 decreases, the shelf air conditioning controller 82 operates the CO2 gas supply device 63 to adjust the CO2 concentration in the air conditioning room 14 to a desired value. Then, the conditioned air with an increased CO2 concentration is supplied from the air conditioning room 14 to the cultivation space 17.

[0089] The lighting device 22 switches between lighting and extinguishing. In the plant cultivation system 100, the lighting device 22 is turned on to irradiate the plant 108 with light, or the lighting device 22 is turned off. Thereby, in the plant cultivation system 100, an artificial light period, which is the daytime when the plant 108 performs photosynthesis, and a dark period, which is the nighttime when the plant 108 does not perform photosynthesis, are created.

[0090] <Operation of the Second Embodiment> During the light period, in order to allow Plant 108 to perform photosynthesis, light is irradiated from the lighting device 22. For this reason, the temperature of the cultivation chamber 13 rises due to the heat generated by the lighting device 22. If the outside air temperature is lower than the temperature of the cultivation chamber 13, in order to adjust the temperature of the cultivation chamber 13 with ventilation of the cultivation chamber 13, the overall controller 84 outputs a control command to the ventilation controller 83. The ventilation controller 83 operates the indoor ventilation equipment 20 to supply outside air from the outside S to the cultivation chamber 13 and exhaust the air in the cultivation chamber 13 from the cultivation chamber 13. Since the outside air temperature is lower than the temperature of the cultivation chamber 13, the temperature of the cultivation chamber 13 can be lowered by supplying outside air to the cultivation chamber 13.

[0091] If the temperature of the cultivation chamber 13 is adjusted to a desired value only by ventilation, the overall controller 84 does not have to control the indoor air conditioner controller 81. In this case, the indoor air conditioner 16 is not operated. On the other hand, if the temperature of the cultivation chamber 13 is not adjusted to a desired value only by ventilation, the overall controller 84 controls the indoor air conditioner controller 81 to adjust the temperature setting of the indoor air conditioner 16. The overall controller 84 operates the indoor air conditioner 16 according to the detection result of the outside air temperature sensor 93 and the detection result of the indoor temperature sensor 91. Specifically, the indoor air conditioner controller 81 adjusts the temperature setting of the indoor air conditioner 16 so that the temperature of the cultivation chamber 13 becomes a desired value.

[0092] During the light period, when the temperature of the cultivation space 17 rises, the shelf air conditioner controller 82 operates the shelf air conditioner 61 to adjust to lower the temperature of the cultivation space 17. Also, during the light period, due to the transpiration of Plant 108, the humidity of the cultivation space 17 rises. In this case, when operating the shelf air conditioner 61 to adjust to lower the temperature of the cultivation space 17, the humidity of the cultivation space 17 is lowered as the temperature of the cultivation space 17 decreases. In this case, the overall controller 84 outputs a control command to the shelf air conditioner controller 82. The shelf air conditioner controller 82 operates the dehumidifier 64 to dehumidify the cultivation chamber 13.

[0093] Also, during the light period, the humidity in the cultivation chamber 13 increases due to the transpiration of the plant 108. In this case, the humidity in the cultivation chamber 13 may be adjusted by ventilation. If the humidity of the outside air is lower than that of the cultivation chamber 13, the humidity in the cultivation chamber 13 is adjusted with ventilation. At this time, the overall controller 84 outputs a control command to the ventilation controller 83. The ventilation controller 83 operates the indoor ventilation equipment 20 to supply outside air from the outside S to the cultivation chamber 13 and exhaust the air in the cultivation chamber 13 from the cultivation chamber 13. By supplying dry outside air to the cultivation chamber 13, the humidity in the cultivation chamber 13 can be reduced.

[0094] Also, during the dark period, the lighting device 22 is turned off. During the dark period, since there is no heat generation by the lighting device 22, the air conditioning by the indoor air conditioner 16 and the shelf air conditioner 61 stops. Therefore, the humidity in the cultivation chamber 13 increases. In the dark period, if the humidity of the outside air is lower than that of the cultivation chamber 13, the humidity in the cultivation chamber 13 is adjusted with ventilation. At this time, the overall controller 84 outputs a control command to the ventilation controller 83. The ventilation controller 83 operates the indoor ventilation equipment 20 to supply outside air from the outside S to the cultivation chamber 13 and exhaust the air in the cultivation chamber 13 from the cultivation chamber 13. By supplying dry outside air to the cultivation chamber 13, the humidity in the cultivation chamber 13 can be reduced.

[0095] Note that if the humidity in the cultivation chamber 13 is adjusted to the desired value only by ventilation, the overall controller 84 does not have to control the indoor air conditioner controller 81. In this case, the indoor air conditioner 16 is not operated. On the other hand, when the humidity in the cultivation chamber 13 cannot be adjusted to the desired value only by ventilation, the overall controller 84 controls the shelf air conditioner controller 82 to operate the dehumidifier 64. The overall controller 84 operates the dehumidifier 64 according to the detection result of the shelf humidity sensor 95. Specifically, the shelf air conditioner controller 82 operates the dehumidifier 64 to dehumidify the cultivation chamber 13 so that the humidity in the cultivation chamber 13 becomes the desired value.

[0096] Also, during the dark period, the humidity in the cultivation space 17 increases due to the transpiration of the plant 108. In this case, the overall controller 84 outputs a control command to the shelf air conditioner controller 82. The shelf air conditioner controller 82 operates the dehumidifier 64 to dehumidify the cultivation space 17.

[0097] Therefore, the overall controller 84 comprehensively controls the indoor air conditioner controller 81, the shelf air conditioner controller 82, and the ventilation controller 83, and interlocks the indoor air conditioner 16, the shelf air conditioner 61, the humidifier 62, the dehumidifier 64, the indoor ventilation equipment 20, and the air conditioner room ventilation equipment 65. Thereby, the temperature, humidity, and CO2 concentration in the cultivation room 13 and the temperature, humidity, and CO2 concentration in the cultivation space 17 are adjusted to desired values.

[0098] <Effects of the Second Embodiment> Therefore, according to the second embodiment, in addition to the effects described in (1-1) to (1-6), (1-9), and (1-10) of the first embodiment, the following effects can be obtained.

[0099] (2-1) By supplying outside air to the cultivation room 13 by the indoor ventilation equipment 20, it is possible to suppress the temperature rise in the cultivation room 13 even when the indoor air conditioner 16 and the shelf air conditioner 61 are not operating during the light period when the lighting device 22 is lit. For this reason, the operating cost of the plant cultivation system 100 can be suppressed. Also, by supplying outside air to the cultivation room 13 by the indoor ventilation equipment 20, it is possible to reduce the humidity in the cultivation room 13 without using the dehumidifier 64. For this reason, the operating cost of the plant cultivation system 100 can be suppressed.

[0100] (2-2) The ethylene gas removal device 62a can remove ethylene gas that affects the cultivation of the plant 108. Note that the above embodiment can be implemented with the following modifications. The above embodiment and the following modification examples can be implemented in combination with each other within a technically non - conflicting range.

[0101] · As shown in FIG. 9, the mushroom cultivation system 10 may be provided with a first air-conditioned room 141 and a second air-conditioned room 142 as two air-conditioned rooms 14. The first air-conditioned room 141 is provided with air-conditioning equipment 601 for the first shelf and air supply equipment 701 for the first shelf. The second air-conditioned room 142 is provided with air-conditioning equipment 602 for the second shelf and air supply equipment 702 for the second shelf. The temperature, humidity, and CO2 concentration in the cultivation space 17 of the first cultivation shelf 111 are adjusted using the air-conditioning equipment 601 for the first shelf and the air supply equipment 701 for the first shelf. Also, the temperature, humidity, and CO2 concentration in the cultivation space 17 of the second cultivation shelf 112 are adjusted using the air-conditioning equipment 602 for the second shelf and the air supply equipment 702 for the second shelf.

[0102] The cultivated product on the first cultivation shelf 111 is a sealed mushroom bed packed in bags among the mushroom beds 19. And in the first cultivation shelf 111, since the cultivation of the sealed mushroom bed is carried out, the temperature, humidity, and CO2 concentration in the cultivation space 17 are adjusted to constant values. The cultivated product on the second cultivation shelf 112 is an exposed growing mushroom bed among the mushroom beds 19. And in the second cultivation shelf 112, since the growth of the growing mushroom bed is carried out, the temperature, humidity, and CO2 concentration in the cultivation space 17 are changed to a temperature change suitable for the growth period, humidity, and CO2 concentration, different from the cultivation period of the sealed mushroom bed.

[0103] The air-conditioning equipment 601 for the first shelf adjusts the conditioned air suitable for the cultivation of the sealed mushroom bed. The air-conditioning equipment 602 for the second shelf adjusts the conditioned air suitable for the growth of the growing mushroom bed. Therefore, the mushroom cultivation system 10 is provided with a plurality of air-conditioning equipment for shelves. Also, the mushroom cultivation system 10 makes the temperature, humidity, and CO2 concentration of the conditioned air different for each of the air-conditioning equipment 601 and 602 for shelves. The mushroom cultivation system 10 is provided with a plurality of cultivation shelves 111 and 112 with different temperatures, humidities, and CO2 concentrations in the cultivation space 17. And according to the temperature, humidity, and CO2 concentration of the cultivation shelves 111 and 112, the conditioned air is sent into the cultivation space 17 individually from the branch pipes 71c of the air duct 71, the blowers 72, the air supply pipes 73, and the air supply nozzles 74 of the air-conditioning equipment 601 and 602 for shelves. Thereby, even if the cultivation environments of the cultivated products are different, they can be cultivated individually.

[0104] ·The indoor ventilation equipment 20 and the ventilation equipment 65 for the air-conditioned room may be equipped with only the air supply device or only the exhaust device. ·In each embodiment, the first to fourth shielding plates 41 to 44 may be plates other than the reflective sheet.

[0105] ·In each embodiment, the installation positions of the branch pipe 71c and the blower 72 are not limited to the ceiling surface of each cultivation shelf 11 and may be changed as appropriate. Even in this case, the air supply pipe 73 extends from the blower 72 and extends throughout the vertical direction Z of the cultivation shelf 11.

[0106] ·In each embodiment, an air-conditioned room 14, shelf air-conditioning equipment 60, and air supply equipment 70 may be provided for each cultivation shelf 11. ·On the partition board 30 that forms the bottom of the cultivation space 17, a conveyor for transporting the cultivated products in the depth direction Y may be installed.

[0107] ·The control device 80 may use AI technology to control the operation of the indoor air-conditioning device 16, shelf air-conditioning device 61, humidifier 62, CO2 gas supply device 63, dehumidifier 64, humidifier 75 for the air supply equipment, indoor ventilation equipment 20, and ventilation equipment 65 for the air-conditioned room.

[0108] For example, the states of the fungus bed 19 and the plant 108 are acquired in advance as images and stored in the control device 80 in advance. In addition, the control device 80 is made to learn, as teacher data, the images of the states of the fungus bed 19 and the plant 108 and the cultivation conditions (temperature, humidity, CO2 concentration) associated with the images. Then, the control device 80 determines the cultivation conditions of the fungus bed 19 and the plant 108 from the images of the fungus bed 19 and the plant 108. Based on the determination of the control device 80, the overall controller 84 may control the controllers 81 to 83 to control the operation of the indoor air-conditioning device 16, shelf air-conditioning device 61, humidifier 62, CO2 gas supply device 63, dehumidifier 64, humidifier 75 for the air supply equipment, indoor ventilation equipment 20, and ventilation equipment 65 for the air-conditioned room.

[0109] · The indoor ventilation equipment 20 and the ventilation equipment 65 for the air-conditioned room may be equipped with a heat exchanger. When the outdoor air is taken in by the indoor ventilation equipment 20 and the ventilation equipment 65 for the air-conditioned room, heat exchange is performed between the outdoor air and the heat exchanger in accordance with the temperature of the cultivation room 13 or the air-conditioned room 14. As a result, the temperature of the outdoor air to be taken in can be brought closer to the temperature of the cultivation room 13 or the air-conditioned room 14. Consequently, temperature fluctuations in the cultivation room 13 and the air-conditioned room 14 due to ventilation can be suppressed. Therefore, since the cultivation room 13 and the air-conditioned room 14 can be air-conditioned only by ventilation, it is not necessary to operate the indoor air-conditioning device 16 and the shelf air-conditioning device 61. As a result, the cost required for air-conditioning the cultivation room 13 and the air-conditioned room 14 can be reduced.

[0110] · In the cultivation system, different types of cultivated plants may be cultivated in the cultivation room 13. For example, in the cultivation room 13, the mushroom bed 19 and the plant 108 may be cultivated. In this case, since the ethylene gas generated from the mushroom bed 19 affects the growth of the plant 108, an ethylene gas removal device 62a is installed in the humidifier 62 to remove the ethylene gas.

[0111] · A humidifier 62 may be installed in the cultivation room 13. The technical idea that can be grasped from the above-described embodiment and modification examples will be described. · The control device interlocks the indoor air-conditioning device, the shelf air-conditioning equipment, and the ventilation equipment to adjust the temperature and humidity of the cultivation room and the temperature, humidity, and CO2 concentration of the cultivation space.

Explanation of Signs

[0112] 10... Mushroom cultivation system, 11... Cultivation shelf, 12... Structure, 13... Cultivation room, 16... Indoor air-conditioning device, 17... Cultivation space, 19... Mushroom bed as a cultivated plant, 20... Indoor ventilation equipment, 30... Partition board, 41 - 44... First - fourth shielding boards, 51... Inlet, 60... Shelf air-conditioning equipment, 65... Ventilation equipment for the air-conditioned room, 71... Air duct, 71c... Branch pipe, 72... Blower, 73... Air supply pipe, 74... Air supply nozzle, 80... Control device, 100... Plant cultivation system, 102... Plant cultivation factory as a structure, 108... Plant as a cultivated plant, 111... First cultivation shelf, 112... Second cultivation shelf, 601... First shelf air-conditioning equipment, 602... Second shelf air-conditioning equipment.

Claims

1. A plurality of cultivation shelves installed in a cultivation room of a structure, the multi-stage cultivation shelves having a plurality of cultivation spaces in the vertical direction for placing cultivated plants, An indoor air conditioner for adjusting the temperature and humidity of the cultivation room, Shelf air conditioning equipment for adjusting the conditioned air for adjusting the temperature, humidity, and CO ２ concentration in the cultivation space, and An air duct having a branch pipe into which the conditioned air adjusted by the shelf air conditioning equipment is introduced and which distributes the conditioned air to each of the plurality of cultivation shelves, A blower communicating with each branch pipe for sending out the conditioned air, An air supply pipe connected to the blower and extending in the vertical direction of the cultivation shelf, A plurality of air supply nozzles connected to the air supply pipe for sending the conditioned air into each of the plurality of cultivation spaces, comprising: The cultivation shelf is A partition board extending in the horizontal direction, on which the cultivated plants are placed, A shielding board surrounding the cultivation space from the side, An exhaust port that opens between the shielding board and the partition board and communicates the cultivation space with the outside of the cultivation shelf, The air supply nozzle is arranged in the cultivation space and sends the conditioned air into the cultivation space. A cultivation system characterized by this.

2. Ventilation equipment including at least one of an air supply device for supplying outside air to the cultivation room and an exhaust device for exhausting the cultivation room, and a control device for controlling the operation of the indoor air conditioner, the shelf air conditioning equipment, and the ventilation equipment. The cultivation system according to claim 1.

3. A plurality of the air conditioners for shelves are provided, and the temperature, humidity, and CO ２ concentration of the conditioned air are made different for each of the air conditioners for shelves, and a plurality of the cultivation shelves in which the temperature, humidity, and CO ２ concentration are made different are provided. According to the temperature, humidity, and CO ２ concentration of the cultivation shelf, the conditioned air is individually sent into the cultivation space from the air conditioner for shelves through the branch pipe, the blower, the air supply pipe, and the air supply nozzle of the air duct. The cultivation system according to claim 1 or claim 2.

4. The cultivated plant is a mushroom, The exhaust port communicates the cultivation space with the outside of the cultivation shelf below the lower edge of the shielding board in the cultivation space. The cultivation system according to claim 1 or claim 2.

Images