Cultivation greenhouse

Abstract

To provide a cultivation greenhouse capable of efficiently cultivating a plurality of kinds of field crop while improving energy efficiency than before.SOLUTION: A plurality of louver devices 2 capable of performing photovoltaic power generation by shielding light are severally disposed on an open side face of a greenhouse body 10 formed in an approximately rectangular parallelepiped shape. The louver device 2 arranged on a top face of the greenhouse body 10, because a ceiling part 15 of the greenhouse body 10 is constituted to rotate by an opening / closing mechanism R and to be capable of opening / closing, is constituted to rotate together with the ceiling part 15 to be capable of changing a posture corresponding to an opening / closing action of the ceiling part 15. A cultivation space for cultivating field crop is formed in the greenhouse body 10, and furthermore, a plant cultivation shelf device for cultivating plants, a mushrooms cultivation device for cultivating mushrooms housed below the plant cultivation shelf device, and a battery which charges electric power generated by the louver device 2 are disposed in the cultivation space.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a modular cultivation house. [Background technology]

[0002] In recent years, mainly in urban areas, attention has been focused on modular cultivation houses that can efficiently cultivate agricultural products on a limited land area. For example, the following Patent Document 1 discloses a modular cultivation house in which various devices such as an artificial light source, a nutrient solution circulation device, an air conditioning system, a carbon dioxide gas supply device, and a seedling shelf are arranged in a simple building that can be constructed by simple means. Since the building and various devices of such modular cultivation houses are modularized, construction and installation work can be performed without spending time and money compared to general cultivation houses, and there are also advantages such as easy control of the cultivation environment within the facility (for example, temperature, carbon dioxide gas concentration, illuminance, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Publication No. 3157454 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in conventional modular cultivation houses, the cultivation environment is controlled by various devices, which leads to increased power consumption for driving the various devices, and there is room for improvement in terms of energy efficiency. In particular, in recent years, energy costs, including electricity, have been on the rise, and there is a demand for energy-saving cultivation houses. In addition, conventional modular cultivation houses are often used to cultivate a single crop in order to efficiently cultivate crops on a limited land area, making it difficult to cultivate multiple crops (for example, plants and fungi).

[0005] Therefore, an object of the present invention is to provide a cultivation house that can solve such problems, improve energy efficiency compared to conventional cultivation houses, and efficiently cultivate multiple types of agricultural crops. [Means for solving the problem]

[0006] In order to achieve the above object, the first invention provides: A plurality of louver devices capable of generating solar power by shading are disposed on open sides of a house body formed in a substantially rectangular parallelepiped shape, The louver device arranged on the upper surface of the house main body is configured to be able to rotate together with the ceiling part and change its posture in response to an opening / closing operation of the ceiling part, since the ceiling part of the house main body is configured to be able to rotate and open / close by an opening / closing mechanism, A cultivation space for cultivating agricultural crops is formed in the greenhouse body, and further, In the cultivation space, a plant cultivation shelf device for cultivating plants, a mushroom cultivation device for cultivating mushrooms stored below the plant cultivation shelf device, and a battery for charging electricity generated by the louver device are arranged. The louver device includes a plurality of solar panels, a mounting base on which the plurality of solar panels are mounted at equal intervals on the same plane in a parallel orientation, and a rotation mechanism that synchronously rotates the plurality of solar panels mounted on the mounting base, and The present invention provides a cultivation house comprising a control device capable of controlling the driving of the opening / closing mechanism and the rotating mechanism.

[0007] In the first invention, a plurality of louver devices capable of generating solar power by shading are arranged on the open side of the house body formed in a substantially rectangular parallelepiped shape, and the louver devices are configured to be opened and closed by rotating the ceiling part of the house body by an opening and closing mechanism. As a result, the louver devices are configured to be able to change their position by rotating together with the ceiling part in response to the opening and closing operation of the ceiling part, so that the position of the louver devices can be changed, and it is possible to make them follow the movement of the sun well, and the power generation efficiency can be improved. In addition, a plant cultivation shelf device for cultivating plants and a mushroom cultivation device for cultivating mushrooms stored below the plant cultivation shelf device are arranged in the cultivation space. As a result, the plant cultivation shelf device can be cultivated using sunlight, and further, by arranging the mushroom cultivation shelf device so as to be stored below the plant cultivation shelf device, the illuminance around the mushroom cultivation shelf device can be reduced, and thus the mushrooms can be cultivated well. As a result, it is possible to efficiently cultivate multiple types of agricultural crops within a limited cultivation space.

[0008] The second invention has the same configuration as the first invention, as well as: A cultivation environment information acquisition sensor is provided to acquire cultivation environment information in the cultivation space, The cultivation environment information acquisition sensor is configured to be able to measure a carbon dioxide concentration around the plant cultivation shelf device, the control device is configured to be capable of executing, as control modes of the louver device, a cultivation priority mode in which the louver device is controlled so that the inside of the cultivation space has a target illuminance desirable for plant growth, and a power generation priority mode in which the louver device is controlled so that the power generation efficiency of the louver device is maximized, and further configured to be capable of executing an automatic switching process for automatically switching between the cultivation priority mode and the power generation priority mode; The automatic switching process is configured to acquire information on the carbon dioxide concentration measured by the cultivation environment information acquisition sensor, and when it is determined that the amount of change in the carbon dioxide concentration within a specified time interval is below a specified value, automatically switch from the cultivation priority mode to the power generation priority mode.

[0009] According to the second invention, in addition to the effects of the first invention, the change in carbon dioxide concentration in the cultivation space is monitored as a criterion for determining whether or not plants are actively photosynthesizing, and by automatic switching processing, when plants are actively photosynthesizing, the cultivation priority mode is executed to promote plant growth, and on the other hand, when plants' photosynthesis is slowing down (for example, when the accumulated illuminance is sufficient for the plants), the mode can be automatically switched to the power generation priority mode, thereby improving the energy efficiency of the cultivation house while appropriately promoting plant growth.

[0010] The third invention has the following features in addition to the features of the first or second invention: The mushroom cultivation shelf device comprises a plurality of shelf devices each having multiple upper and lower shelf sections on which mushrooms are placed and a pair of left and right frame sections supporting the shelf sections, and each shelf section is provided with a mushroom lighting lamp so that the plurality of shelf devices can be illuminated by shining on each other.

[0011] According to the third invention, in addition to the effects of the first or second invention, the multiple shelf devices illuminate each other, so that mushrooms can be efficiently cultivated. Also, by irradiating the mushrooms with light from below to above, the growth of the mushrooms can be favorably promoted.

[0012] The fourth invention has the following features in addition to any one of the first to third inventions: The battery is configured to receive surplus power from the battery of another cultivation house by connecting a charging plug provided on the battery to a charging connector of the battery of another cultivation house, and further, is configured to supply surplus power to the other cultivation house by connecting a charging plug of the other cultivation house to the charging connector.

[0013] According to the fourth invention, in addition to the effects of any one of the first to fourth inventions, when multiple cultivation houses are operated, surplus electricity generated in one cultivation house can be supplied to other cultivation houses that are in deficit of electricity, enabling efficient cultivation throughout the entire cultivation house.

[0014] The fifth invention is, in addition to the configuration of the second invention, The cultivation environment information acquisition sensor is equipped with a rainfall sensor that detects rain and an air pressure sensor that detects air pressure, and is configured to control the opening and closing mechanism to control the ceiling portion to an inclined position when the rainfall sensor detects rain, regardless of whether the cultivation priority mode and the power generation priority mode are executed, and is further configured to control the ceiling portion to a closed state when the air pressure sensor detects that the air pressure is lower than a predetermined value.

[0015] According to the fifth invention, in addition to the effects of the second invention, when the rainfall sensor detects rain, the opening and closing mechanism is controlled to tilt the ceiling, thereby effectively preventing rain from entering the cultivation space during rainfall. Also, when the air pressure is low, the ceiling is closed to prevent the ceiling from being blown by the wind, thereby effectively preventing failure and wear of the louver device and each mechanism. Effect of the Invention

[0016] According to the present invention, it is possible to provide a cultivation house capable of cultivating multiple types of agricultural crops efficiently while improving energy efficiency compared to conventional cultivation houses. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing the appearance of a cultivation house according to a preferred embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic left side view of the inside of the cultivation house in FIG. [Diagram 3] FIG. 3 is a partially enlarged side view showing the light blocking state of the louver device of FIG. [Figure 4]FIG. 4 is a partially enlarged side view showing the light transmitting state of the louver device of FIG. [Diagram 5] FIG. 5 is a side view of the mounting portion of the louver device of FIG. [Figure 6] FIG. 6 is a perspective view of the plant cultivation shelf apparatus of FIG. [Figure 7] FIG. 7 is a left side view of the same. [Figure 8] FIG. 8 is a perspective view of the mushroom cultivation rack device of FIG. [Figure 9] FIG. 9 is a left side view of the same. [Figure 10] FIG. 10 is a control block diagram of the control device of FIG. [Figure 11] FIG. 11 is a schematic left side view of the cultivation house 1 for explaining the operation of the control device C in the cultivation priority mode. [Figure 12] FIG. 12 is a schematic left side view of the cultivation house 1 for explaining the operation of the control device C in the cultivation priority mode. [Figure 13] FIG. 13 is a flowchart showing the flow of the automatic switching process between the cultivation priority mode and the power generation priority mode. [Figure 14] Figure 14(a) is an exploded oblique view of the floor surface of the floor section, Figure 14(b) is an oblique view showing the state of the floor surface of the floor section in a closed state, and Figure 14(c) is an oblique view showing the state of the floor surface of the floor section in an open state. [Figure 15] FIG. 11 is a schematic perspective view of a plant cultivation shelf device according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] <1-1. Exterior composition of the cultivation house> A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is an external perspective view of a cultivation house 1 according to a preferred embodiment of the present invention, and FIG. 2 is a schematic left side view of the inside of the cultivation house 1 in FIG. 1. In the following description, the positive direction of the X axis is defined as the front, the negative direction of the X axis is defined as the rear, the positive direction of the Y axis is defined as the left, and the negative direction of the Y axis is defined as the right, with respect to the cultivation house 1, and the X axis direction is defined as the front-rear direction, the Y axis direction is defined as the left-right direction, and the Z axis direction is defined as the up-down direction, but the definitions of these directions themselves do not limit the invention. In addition, the front side of the cultivation house 1 is defined as the front surface, and the rear side is defined as the back surface.

[0019] As shown in Figure 1, the cultivation house 1 has an exterior shape that is approximately a regular hexahedron, and in this embodiment, the front-to-back, left-to-right width and top-to-bottom height are each approximately 2 m (meters), but the size of the cultivation house 1 is not limited to this.

[0020] The cultivation house 1 has a plurality of louver devices 2 that can generate solar power by shading arranged on the front, left and right sides, and top of the wooden house body 10 that forms the framework of the cultivation house 1. The front and left and right sides of the house body 10 are each provided with two louver devices 2, one above and one below, and these two louver devices 2 also function as side walls that form the front and left and right sides of the cultivation house 1. The top surface of the house body 10 is provided with two louver devices 2, one in the front and one in the back, and these two louver devices 2 also function as a roof that covers the top surface. In the following description, the louver devices 2 arranged on the top side of the front and left and right sides of the cultivation house 1 are referred to as the upper louver device 2U and the lower louver device 2D. The louver device arranged on the front side of the top surface is referred to as the front louver device 2F, and the louver device arranged on the rear side of the top surface is referred to as the rear louver device 2R. The rear side of the house body 10 has a side wall formed of wooden boards, and further has a door section 1a through which the cultivation house 1 can be accessed. The door section 1a is formed with dimensions that allow the plant cultivation shelf device 3 and the mushroom cultivation shelf device 4 described below to be moved in and out of the cultivation house 1, which allows for good maintenance of these devices. Furthermore, the house body 10 is made of wood, which is environmentally friendly and reduces the overall weight of the cultivation house 1. In terms of cultivation, this has the advantage of improving moisture absorption and heat retention, and stabilizing the cultivation environment in the cultivation house 1.

[0021] An external environment acquisition sensor S1 is provided at an appropriate position on the upper part of the cultivation house 1 to acquire information on the cultivation environment outside the cultivation house 1 (in other words, outside the cultivation house 1). The external environment information acquisition sensor S1 includes an outside air temperature acquisition sensor for measuring the outside air temperature, a rainfall sensor for detecting rainfall, a wind force sensor for measuring wind force, a solar incidence angle detection sensor for detecting the incidence angle of solar light, an illuminance measurement sensor for measuring the illuminance of solar light, etc. Various types of detection and detection information acquired by the external environment acquisition sensor S1 are transmitted by wireless communication to a control device C described later, and the control device C is configured to acquire and store the information.

[0022] <1-2. Configuration of the house and its surroundings> The house body 10 has an external shape formed in a substantially rectangular parallelepiped shape, and is formed with a base part 11, a floor part 12, supports 13, side walls 14, and a ceiling part 15. The base part 11 is a base for installation that serves as a foundation for the house body 11 of the cultivation house 1.

[0023] The floor section 12 is formed by a floor frame member formed by assembling four pieces of wood into a rectangular frame shape, and floor plate material fitted into the frame of the floor frame member. This floor section 12 functions as the floor of the cultivation house 1, and is supported in the air by the foundation section 11 (in other words, floating above the installation surface of the cultivation house 1). As a result, a cultivation space Sp1, which is a space for cultivating agricultural products, is formed on the floor of the floor section 12, and an underfloor space Sp2 in which various devices can be arranged is formed below the floor. Although not shown, the floor plate material of the floor section 12 is breathable.

[0024] A support pillar 13 is provided at each of the four corners of the floor portion 12, and is configured to support the ceiling portion 15. The side wall portion 14 forming the side wall of the cultivation house 1 is configured such that the louver devices 2 (upper louver device 2U, lower louver device 2D) are provided on the open front, left and right sides of the support pillars 13 at the four corners, as described above, and a wooden board is provided on the back side.

[0025] The ceiling portion 15 has a structure that allows it to be opened and closed, and in detail, it comprises a ceiling frame portion 15a formed in a rectangular frame shape by assembling beam members that connect the upper parts of the pillars 13 from front to back and girder members that connect them from left to right into a rectangular frame shape, and a rectangular opening and closing frame portion 15b that is attached to the ceiling frame portion 15a so as to be able to be opened and closed.

[0026] The opening / closing frame 15b is configured to open and close by an opening / closing mechanism R that is driven and controlled by a control device C described later. As shown in the blown-out portion of FIG. 2, the opening / closing mechanism K is provided with a hinge member r1 that connects the front end of the ceiling frame 15a and the opening / closing frame 15b, and the opening / closing frame 15b is configured to be able to rotate its rear end up and down around its front end as a rotation center. In this way, the ceiling frame 15a and the opening / closing frame 15b, which are configured by stacking rectangular frame-shaped plate materials, can be opened and closed by the opening / closing frame 15b rotating its rear end up and down with respect to the ceiling frame 15a fixed to the support 13 side. The opening and closing is performed by driving the opening / closing mechanism R. In addition, a fine mesh net 15n like a screen door is stretched over the entire surface of the ceiling frame 15a, which is configured to ensure ventilation while preventing the intrusion of insects and small animals such as birds.

[0027] In addition, the opening / closing mechanism R is configured such that a pinion gear r3 that rotates forward and backward by the drive of a ceiling opening / closing motor r2 is attached to the opening / closing frame 15b, and an arc-shaped pinion rack r4 that meshes with the pinion gear r3 is attached to the opening / closing frame 15b, and the ceiling opening / closing motor r2 is driven and controlled by the control device C. As a result, when the pinion gear r3 rotates forward or backward, a vertical force is applied to the pinion rack r4 depending on the direction of rotation, and as a result, the opening / closing frame 15b to which the pinion rack r4 is fixed is rotated upward or downward to move up and down (i.e., to open and close). As a result, the opening / closing frame 15b can be rotated upward at the rear end from a horizontal posture (i.e., the ceiling 15 is closed) to an inclined posture (i.e., the ceiling 15 is open). Here, when the ceiling portion 15 is changed from a closed state to an open state, the air inside the house body 10 escapes upward, promoting ventilation, and it becomes possible to adjust the temperature and humidity inside the cultivation house 1.

[0028] 2, in this embodiment, the control device C controls the opening / closing mechanism R, so that the rotation angle θ of the rotating frame portion 15b (the angle that the rotating frame portion 15b forms with the horizontal direction) is determined by the control device C and is configured to be movable within a range of approximately 0° to 60°. However, the rotation angle θ of the rotating frame portion 15b according to the present invention is not limited to this range.

[0029] As described above, the louver devices 2 (front louver device 2F, rear louver device 2R) are attached to the front and rear of the opening / closing frame portion 15b, and are configured to rotate integrally with the opening / closing frame portion 15b by driving the opening / closing mechanism R. As a result, the opening / closing mechanism R and the opening / closing frame portion 15b have the function of opening and closing the ceiling portion 15, as well as the function of changing the attitude of the louver devices 2 arranged on the ceiling portion 15. As a result, by changing the attitude of the louver devices 2, it is possible to satisfactorily follow the movement of the sun, and power generation efficiency can be improved.

[0030] <1-3. Outline of the cultivation house interior> Next, a schematic configuration inside the cultivation house 1 will be described with reference to FIG. Here, the cultivation house 1 according to the present invention is capable of cultivating a plurality of types of agricultural crops, and is configured to cultivate a first agricultural crop N1 and a second agricultural crop N2 in detail. The first agricultural crop N1 is assumed to be a plant that requires a lot of sunlight for cultivation, and the second agricultural crop N2 is assumed to be a mushroom that can be cultivated with limited sunlight. Hereinafter, the first agricultural crop N1 is referred to as the plant N1, and the second agricultural crop N2 is referred to as the mushroom N2. The plant N1 is, for example, strawberry, tomato, cedar seedlings, etc., and the mushroom N2 is, for example, enoki mushroom, king oyster mushroom, wood ear mushroom, shiitake mushroom, shimeji mushroom, nameko mushroom, oyster mushroom, buna shimeji mushroom, hon shimeji mushroom, maitake mushroom, mushroom, etc.

[0031] A plant cultivation shelf device 3 for cultivating a plant N1 is disposed in a cultivation space Sp1 inside the cultivation house 1. A mushroom cultivation shelf device 4 for cultivating a mushroom N2 is disposed below the plant cultivation shelf device 3 so as to be stored in the plant cultivation shelf device 3.

[0032] In addition, the control device C, the carbon dioxide supplying device e1, and the battery B are disposed at appropriate positions in the cultivation space Sp1, and a ventilation fan e2 and a light reflecting plate e3 are disposed on the upper side of the side wall portion 14 on the rear side. Furthermore, the underfloor space Sp2 is provided with a plurality of blowers e4 capable of blowing air into the cultivation space Sp1, a mist supplying device e5 capable of supplying fine mist (mist), and an irrigation device W that supplies water for irrigation to various devices in the cultivation space Sp1. In this embodiment, the blowers e4, the mist supplying device e5, and the irrigation device W are configured to be disposed in the underfloor space Sp2 in order to effectively utilize the space, but they may be disposed in the cultivation space Sp1.

[0033] The carbon dioxide supplying device e1 is equipped with an electromagnetic valve and a carbon dioxide cylinder (not shown), and by controlling the drive of the electromagnetic valve by the control device C, it is possible to supply carbon dioxide, which is the applied gas, to the plant cultivation shelf device 3 and the mushroom cultivation shelf device 4 described below.

[0034] The ventilation fan e2 is driven and controlled by the control device C, and is equipped with a fan (not shown), which, when driven, generates a flow of air in the forward and backward directions to the cultivation house 1, circulating the air. This allows outside air (air outside the cultivation house 1) to be taken into the cultivation space Sp1, lowering the temperature and humidity inside the house and reducing the carbon dioxide concentration.

[0035] The reflector e3 is configured to reflect light toward the louver device 2 and the plant cultivation shelf device 3, thereby improving energy efficiency. Note that the reflector e3 may be provided not only on the side wall on the rear side indoors, but also on the left and right side surfaces.

[0036] The blower e4 is fixed to the underside of the floor 12 and is driven and controlled by the control device C. It is a so-called circulator, and functions to blow air upwards when driven. Since the floor 12 has ventilation as described above, the wind generated by the blower e4 is sent to the cultivation space Sp1. The blower e4 is disposed below the plant cultivation shelf device 3 and the mushroom cultivation shelf device 4 described later, and can blow air directly to these devices, so that it is possible to reduce the temperature and humidity around these devices and reduce the carbon dioxide concentration more quickly and efficiently than by driving the ventilation fan e2. The blower e4 also serves to lower the temperature of the entire cultivation space Sp1 by sending the air in the underfloor space Sp2 to the cultivation space Sp1. The control device C is configured to drive the blower e4 as appropriate by a predetermined operation of the operator to generate an updraft, and as a result, the air in the house body 10 is released upward, thereby lowering the temperature of the entire cultivation space Sp1. The blower e4 does not necessarily have to be fixed to the floor 12, and can also be disposed on the upper surface of the floor 12.

[0037] The mist supplying device e5 is driven and controlled by the control device C, and supplies fine mist (mist) from a nozzle extending into the cultivation space Sp1 when driven. The nozzle is provided near the plant cultivation shelf device 3 and the mushroom cultivation shelf device 4, which can efficiently prevent the surroundings of these devices from drying out.

[0038] The irrigation device W is connected to the plant cultivation shelf device 3 and the mushroom cultivation shelf device 4 through piping, and includes a water storage tank, an electric pump and solenoid valve, an irrigation controller, etc. (not shown). The irrigation controller receives a control signal from a control device C (described later), and the electric pump and solenoid valve are driven and controlled by the control device C, thereby controlling the water supply from the water storage tank. Thus, the plant cultivation shelf device 3 and the mushroom cultivation shelf device 4 are irrigated under the control of the control device C.

[0039] A first cultivation environment information acquisition sensor S2 and a second cultivation environment information acquisition sensor S3 for acquiring information on the cultivation environment in the cultivation space Sp1 (hereinafter referred to as cultivation environment information) are disposed at appropriate positions inside (indoors) the cultivation house 1. The first cultivation environment information acquisition sensor S2 is, for example, attached to a shelf frame T of the plant cultivation shelf device 3 described later, and the second cultivation environment information acquisition sensor S3 is, for example, attached to a frame 42 of the mushroom cultivation shelf device 4.

[0040] The first cultivation environment information acquisition sensor S2 acquires cultivation environment information around the plant cultivation shelf device 3 (more specifically, the surroundings refer to a predetermined range including inside and outside the device, and the predetermined range refers to, for example, a range within a distance of 30 cm from the device). The first cultivation environment information acquisition sensor S2 is configured to include an air temperature measurement sensor for measuring air temperature, a carbon dioxide concentration measurement sensor for measuring carbon dioxide concentration, an illuminance measurement sensor for measuring illuminance, a humidity measurement sensor for measuring humidity, etc., and various detection and detection information acquired by the first cultivation environment information acquisition sensor S2 is transmitted by wireless communication to a control device C described later, which is configured to acquire and store the information. As a result, the control device C acquires cultivation environment information of the plant N1 being cultivated by the plant cultivation shelf device 3, and based on the information, it is possible to control various devices to realize a cultivation environment (for example, sunlight, humidity, carbon dioxide concentration, etc.) desirable for the growth of the plant N1. The first cultivation environment information acquisition sensor S2 may be arranged, as necessary, on the lower, middle and upper planter shelf boards u2, u2, u2 of the plant cultivation shelf device 3 described later, and configured to be capable of acquiring cultivation environment information around the plants N1 arranged on each planter shelf board u2, u2, u2. Also, the first cultivation environment information acquisition sensor S2 may be arranged on each planter container u1.

[0041] The second cultivation environment information acquisition sensor S3 acquires cultivation environment information around the mushroom cultivation shelf device 4 (more specifically, the surroundings refers to a predetermined range including inside and outside the device, and the predetermined range refers to a range within a distance of 30 cm from the device, for example). The second cultivation environment information acquisition sensor S3 includes an air temperature measurement sensor for measuring air temperature, a carbon dioxide concentration measurement sensor for measuring carbon dioxide concentration, an illuminance measurement sensor for measuring illuminance, a humidity measurement sensor for measuring humidity, etc., and various detection and detection information acquired by the second cultivation environment information acquisition sensor S3 is transmitted by wireless communication to a control device C described later, which is configured to acquire and store the information. As a result, the control device C acquires cultivation environment information of the mushrooms N2 being cultivated by the plant cultivation shelf device 3, and based on the information, it is possible to control various devices to realize a cultivation environment (for example, sunlight, humidity, carbon dioxide concentration, etc.) desirable for the growth of the mushrooms N2. In addition, the second cultivation environment information acquisition sensor S3 may be arranged, if necessary, on each stage of the shelf section 41 of the mushroom cultivation shelf device 4 described later, and configured to be able to acquire cultivation environment information around the mushrooms N2 arranged on each stage of each shelf section 41.

[0042] <2. Louver device configuration> Next, the configuration of the louver device 2 will be described. Fig. 3 is a partially enlarged side view showing the light-shielding state of the louver device 2 in Fig. 2, and Fig. 4 is a partially enlarged side view showing the light-transmitting state of the louver device 2 in Fig. 2. Also, Fig. 5 is a side view of the pivotal mounting part 23 of the louver device in Fig. 2. Note that the arrow γ in Fig. 4 indicates sunlight and its incident direction.

[0043] As shown in Fig. 3 and Fig. 4, the louver device 2 includes a plurality of solar panels P as solar power generation means, and a mounting base 20 on which the plurality of solar panels P can be mounted in a louver shape (i.e., in a state in which the solar panels P are arranged in parallel to each other at equal intervals on the same plane). For convenience of explanation, the direction indicated by the arrow fa in Fig. 3 and Fig. 4 is the front side of the louver device 2, and the opposite direction is the rear side. Here, as shown in Fig. 1 in the arrangement direction of each louver device 2, the upper louver device 2U is arranged facing upward with the front side of the device facing upward, and the lower louver device 2D is arranged facing downward with the front side of the device facing downward. This is because the upper louver device 2U enables the adjustment of the amount of solar radiation introduced, and the lower louver device 2D is located at a low position, so there is little need to adjust the amount of solar radiation introduced, and therefore it is desirable to arrange it in a direction that makes it easier to generate solar power. Further, the front louver device 2F and the rear louver device 2R are disposed so that the front side of the louver device 2 faces forward.

[0044] Each solar panel P is a rectangular flat plate, and its dimensions are, for example, 10 cm for the short side and 2 m for the long side to match the dimensions of the cultivation house 1. For convenience, when the louver device 2 is in a shading state, the surface of the solar panel P facing the sun is called the front side, and the opposite side is called the back side. The main body of the solar panel P is formed by bonding two panels, one on the front side and one on the back side, which are each made by combining a plurality of cells (solar cell elements). In this way, the solar panel P is capable of generating electricity from the incident light on both the front and back sides, since the solar cell elements are disposed on both the front and back sides. As a result, when the solar panel P performs shading at an angle, the sunlight reflected on the front side of one solar panel P is incident on the back side of the adjacent solar panel P, thereby improving the power generation efficiency. In addition, a cartridge (not shown), which is a small housing with a bypass diode and the like built in, is attached and fixed to each of the front and back panels, and electricity generated by the solar panel P is output from wiring (not shown) connected to the cartridge on each of the front and back panels, and can be charged to the battery B connected to the wiring.

[0045] The mounting base 20 supports the mounted solar panels P and rotates them in a synchronized manner. More specifically, the mounting base 20 includes a rail portion 21 fixed to the opening / closing frame portion 15b, a plurality of mounting piece portions 22 arranged at predetermined intervals on the rail portion 21, and a rotating mounting portion 23 at the tip of each of the mounting piece portions 22, which allows the solar panels P to be detached and rotated freely. Furthermore, the mounting base 20 includes a rotating mechanism K that rotates the plurality of solar panels P mounted on the rotating mounting portions 23 in a synchronized manner. The mounting bases 20 are arranged in pairs on both ends of the solar panel P (see FIG. 1).

[0046] The rail portion 21 is made of a long frame material of a predetermined length, and is preferably made of a rigid metal material, and serves to support the solar panel P in a mounted state. A plurality of mounting pieces 22 are arranged at predetermined intervals so as to protrude from the rail portion 21.

[0047] The mounting piece portion 22 is a protruding piece that protrudes from the rail portion 21, and is preferably made of a hard plastic material having flexibility. The base portion of the mounting piece portion 22 is fixed to the rail portion 21. In addition, the tip portion of the mounting piece portion 22 rotatably supports the rotatable mounting portion 23.

[0048] The pivotable mounting portion 23 is preferably formed from a flexible hard plastic material, and has a base portion 23a which is a base for holding the solar panel P in face-to-face contact, and this base portion 23a is provided with a first pivot fulcrum axis 231 and is attached to the mounting piece portion 22 so as to be freely rotatable around the first fulcrum axis 231.

[0049] 5, a locking piece 23b that locks one end of the solar panel P with a locking protrusion, a hook-shaped locking piece 23c that hooks the other end, and an operation piece 24 for rotating the rotating mounting part 23 are extended from the base part 23a. The operation piece 24 is attached so as to be rotatable about a second rotation fulcrum shaft 232 relative to a swing rail k4 (described later).

[0050] When mounting the solar panel P on the pivot mounting portion 23, with one end of the solar panel P hooked to the hook piece 23c, the solar panel P is pressed against the base portion 23a, causing the hook piece 23c to bend, and the solar panel P is sandwiched between the hook piece 23c and the locking piece 23b and fitted to the base portion 23a. This configuration allows the solar panel P to be easily and quickly attached and detached.

[0051] A second rotation fulcrum shaft 232 is provided at the tip portion of the operation piece 24, and as a result, the operation piece 24 is connected to the swing rail k4 so as to be freely rotatable about this second rotation fulcrum shaft 232.

[0052] The rotation mechanism K is a mechanism for rotating the solar panel P mounted on the mounting base 20 based on the control of the control device C, and the control device C can thereby control the light receiving direction F of the solar panel P by controlling the rotation mechanism K. More specifically, as shown in FIG. 4, the light receiving direction F is determined by an elevation angle α2 that the light receiving direction F makes with the horizontal direction, and in the case of the upper louver device 2U and the lower louver device 2D, the elevation angle α2 is the rise angle α of the rotation mounting part 23 from the rail part 21 (in other words, the angle α is the internal angle between the rail part 21 and the solar panel P) + 90°. In the case of the upper front louver device 2F and the upper rear louver device 2R, it is necessary to further take into account the rotation angle θ of the rotation frame part 15b, so the elevation angle α2 is the rise angle α of the rotation mounting part 23 + 90° - θ.

[0053] As shown in Fig. 4, the rotation mechanism K includes a rotation shaft k1 that rotates by the drive of the electric motor M, a link arm k2 that rotates together with the rotation shaft k1, a link bar k3 whose one end is rotatably connected to the tip portion of the link arm k2, and a swing rail k4 that is rotatably connected to the other end of the link bar k3 and swings by the rotation of the link arm k2. When the swing rail k4 swings, each of the swing mounting parts 23 is rotated via each of the operating pieces 24, and as a result, the solar panels P mounted on each of the swing mounting parts 23 rotate synchronously. In this way, the rotation mechanism K rotates the multiple mounting parts 10 synchronously in response to the rotation of the rotation shaft k1, thereby rotating the multiple solar panels P synchronously to adjust the angle.

[0054] The electric motor M is configured to be controlled to rotate forward and backward by the control device C, and the rotational force of the electric motor M is transmitted to the rotation shaft k1 by a belt transmission mechanism (for example, by winding an endless belt made of rubber or a chain, which transmits the rotational output of the electric motor to the rotation shaft k1). As a result, the control device C can control the direction F of the light receiving surface of the solar panel P (hereinafter referred to as the light receiving direction F) by controlling the electric motor M for each louver device 2 arranged in the cultivation house 1.

[0055] The power generated by the solar panel P of the louver device 2 is charged to a battery B, which is a charging means, through a wiring connection (not shown). The power charged to the battery B can be supplied to various devices arranged in the cultivation house 1. The battery B is provided with a charging plug b1 and a charging connector b2. By connecting the charging plug b1 to the charging connector b2 of the battery B of another cultivation house 1, it is possible to receive surplus power from the battery B of the other cultivation house 1. In addition, by connecting the charging plug b1 of the other cultivation house 1 to the charging connector b2, it is possible to supply surplus power to the other cultivation house 1. As a result, when a plurality of cultivation houses 1 are operated, it is possible to supply surplus power generated in one cultivation house 1 to another cultivation house 1 that is insufficient in power, and efficient cultivation is possible in the entire cultivation house 1.

[0056] <3. Configuration of the plant cultivation shelf device> FIG. 6 is a perspective view of the plant cultivation shelf device 3, and FIG. 7 is a left side view of the same. 6 and 7, the basic configuration of the plant cultivation shelf device 3 is such that a number of planter containers u1, u1, u1 for accommodating seedling pods of a plant N1 to be cultivated are arranged in multiple levels on a shelf frame T forming the skeleton of the device, and planter shelves u2, u2, u2 are arranged below the planter containers u1. In the plant cultivation shelf device 3, each planter container u1 is connected to a water supply pipe W2 equipped with an electromagnetic valve (not shown), and each can be supplied with water from the irrigation device W.

[0057] The shelf frame T is formed by assembling rod-shaped frame materials into a cubic frame shape, and includes four support frames t1 that form the four corners of the plant cultivation shelf device 3, an upper rectangular frame frame t2 provided at the upper end of the support frame t1, and a lower frame frame t3 provided at the lower end. The lower U-shaped frame t3 is a frame material that is U-shaped in a plan view, and each of the four corners is fixed to the four support frames t1 by bolts (not shown). In addition, the U-shape allows the mushroom cultivation shelf device 4, which will be described later, to be easily inserted and removed from the rear side of the shelf frame T.

[0058] In addition, on the right side portion (specifically, the rectangular frame portion formed by the two right-side support frames t1, t1, the right end of the upper rectangular frame t2, and the right end of the lower U-shaped frame t3) and the left side portion (specifically, the rectangular frame portion formed by the two left-side support frames t1, t1, the left end of the upper rectangular frame t2, and the left end of the lower U-shaped frame t3) of the shelf frame T, three pairs of left and right fixing frames t4 are provided at the upper, middle, and lower positions with different top and bottom heights at a specified interval.

[0059] The fixing frame t4 is formed of a frame material with a substantially L-shaped cross section, and is configured to support the planter shelf board u2 by sandwiching it on both the left and right sides with the pair of fixing frames t4, t4. The planter shelf board u2 is rectangular, and the planter container u1 is placed on the upper surface.

[0060] In addition, in order to avoid overlapping in the vertical direction, the planter shelves u2 and planter containers u1 are arranged at the front of the lower fixing frame t4, the middle part at the middle part at the middle part at the middle part at the upper part, and the rear part at the planter shelves u2 and planter containers u1 at the upper part at the planter shelves. In this way, the planter containers u1, u1, u1 are arranged with their positions shifted forward and backward (in other words, in the longitudinal direction of the fixing frame t4), so that even if the plant N1 grows upward, it is prevented from coming into contact with each planter container u1. In addition, the light incident on the plant N1 is not blocked by the planter container u1, and the growth can be promoted well.

[0061] The water pipe W2 has a main pipe extending vertically and a branch pipe branched off from the main pipe, and the branch pipe is connected to the upper and lower planter containers u1, u1, u1, respectively. The water supplied to the upper planter container u1 is circulated to the middle and lower planter containers u1, and is returned from the lower planter container u1 to the water storage tank of the irrigation device W.

[0062] In addition, on the front part of the shelf frame T (specifically, the rectangular frame part formed by the two front support frames t1, t1, the front end of the upper rectangular frame t2, and the front end of the lower U-shaped frame t3), three plant lighting lamps L (L1, L2, L3) for illuminating the plant N1 are provided at the upper, middle, and lower positions at predetermined intervals and with different vertical heights. These plant lighting lamps L are tubular LED lights, and are supplied with power through wiring (not shown) provided inside the shelf frame T, and the plant lighting lamps L (L1, L2, L3) on the upper, middle, and lower positions are configured so that they can be turned on and off independently by the control device C. This allows the upper plant lighting lamp L1 to irradiate (in other words, provide supplementary light to) the upper planter container u1, the middle plant lighting lamp L2 to irradiate (in other words, provide supplementary light to) the middle planter container u1, and the lower plant lighting lamp L3 to irradiate (in other words, provide supplementary light to) the lower planter container u1. As a result, by controlling the on / off of the plant lighting lamps L by the control device C, it is possible to finely adjust the illuminance for each plant N1 contained in each planter container u1.

[0063] The plant cultivation shelf device 3 thus constructed can uniformize the illuminance when cultivating a single variety of plant in each planter container u1, thereby preventing uneven growth of the plants and promoting their growth more favorably. Also, when cultivating different varieties of plants N1 in each planter container u1, it is possible to realize the desired illuminance for each plant N1 on each level. An outlet t5 for supplying power to the plant lighting lamp L is provided at an appropriate position on the shelf frame T, and the outlet t5 is connected to, for example, a battery B to receive power.

[0064] Although not shown, a gas supply pipe is provided near each planter container u1 (and each planter shelf u2) for receiving carbon dioxide gas from the carbon dioxide supply device e1 and dispersing it around the planter container u1. This gas supply pipe is a tubular body having an air-permeable wall and capable of uniformly supplying the applied gas (carbon dioxide gas) from the entire pipe. The gas supply pipe has a large number of fine pores formed around its entire circumference in order to supply gas from the entire pipe. For example, a porous pipe or a watering pipe can be used as such a gas supply pipe.

[0065] <4. Configuration of mushroom cultivation shelf device> FIG. 8 is a perspective view of the mushroom cultivation rack device 4 of FIG. 2, and FIG. 9 is a left side view of the same. As shown in Figures 8 and 9, the mushroom cultivation shelf device 4 is composed of multiple shelf devices. More specifically, the shelf devices include, from the front, a first mushroom cultivation shelf device 4F, a second mushroom cultivation shelf device 4M, and a third mushroom cultivation shelf device 4R.

[0066] The first mushroom cultivation shelf device 4F, the second mushroom cultivation shelf device 4M, and the third mushroom cultivation shelf device 4R each include an upper and lower multi-tiered shelf section 41 on which mushrooms N2 are placed, a pair of left and right frame sections 42, 42 that support the shelf section 41, a bottom frame 43 that connects the pair of left and right frame sections 42, 42, caster wheels 44 attached to the four corners of the bottom frame 43, and a power supply plug 43 for supplying power to each mechanism of the mushroom cultivation shelf device 4.

[0067] Here, the mushroom cultivation shelf devices 4 are arranged so as to be stored below the plant cultivation shelf devices 3 (see FIG. 2). More specifically, the first mushroom cultivation shelf device 4F is arranged below the lower shelf board u2 for planters, the second mushroom cultivation shelf device 4M is arranged below the middle shelf board u2 for planters, and the third mushroom cultivation shelf device 4R is arranged below the upper shelf board u2 for planters. In this embodiment, the shelf portion 41 of the first mushroom cultivation shelf device 4F is configured with two stages, the shelf portion 41 of the second mushroom cultivation shelf device 4M is configured with three stages, and the shelf portion 41 of the third mushroom cultivation shelf device 4R is configured with four stages, in accordance with the height positions of the lower, middle, and upper shelf boards u2 for planters, but the number of stages of the shelf portion 41 is not limited to this. In this way, by arranging the mushroom cultivation shelf device 4 so as to be stored below the plant cultivation shelf device 3, the illuminance around the mushroom cultivation shelf device 4 can be reduced, and the mushrooms N2 can be cultivated well. As a result, it becomes possible to efficiently cultivate multiple types of agricultural products within the limited cultivation space Sp1.

[0068] 9, each stage of the shelf 41 is configured such that mushroom illumination lamps q1 for irradiating light onto the mushrooms N2 and water supply pipes q2 for supplying moisture are alternately arranged between a pair of left and right frames 42, 42. In this embodiment, each shelf 41 is configured with three mushroom illumination lamps q1 and two water supply pipes q2, but the number is not limited to this.

[0069] The mushroom lighting lamp q1 is a tubular LED light, and the water supply pipe q2 is formed of, for example, a porous pipe having fine holes on the circumferential surface, and is configured to receive water from the irrigation device W connected to the piping and spray the water from the entire circumference of the water supply pipe q2. This allows the mushroom lighting lamp q1 to be turned on as necessary under the control of the control device C to supplement the lack of light for the mushrooms N2 placed on the shelf part 41, and to supply moisture to the mushrooms N2 from the water supply pipe q2. The on / off of each mushroom lighting lamp q1 is controlled by the control device C, and the control device C is capable of wireless communication with a microcontroller (not shown) of the mushroom cultivation shelf device 4, and the microcontroller is configured to switch on / off each mushroom lighting lamp q1 based on a control signal from the control device C. The mushroom lighting lamp q1 is also configured to receive power for lighting from the battery B via the power supply plug 43. In addition, by providing the first mushroom cultivation shelf device 4F, the second mushroom cultivation shelf device 4M, and the third mushroom cultivation shelf device 4R with the mushroom lighting lamp q1, the first mushroom cultivation shelf device 4F, the second mushroom cultivation shelf device 4M, and the third mushroom cultivation shelf device 4R can be illuminated so that they shine on each other, which results in efficient cultivation of the mushrooms N2. In addition, by irradiating the mushrooms N2 with light from below to above, growth can be favorably promoted.

[0070] The caster wheels 43 are intended to facilitate movement of the mushroom cultivation shelf device 4, and can improve convenience when an operator needs to move the mushroom cultivation shelf device 4, for example, when setting it below the plant cultivation shelf device 3 or during harvesting work.

[0071] FIG. 10 is a control block diagram of the control device C of FIG. The control device C is an electronic control mechanism having a CPU, a storage device, stored programs (none of which are shown), etc. As shown in Fig. 10, an external environment information acquisition sensor S1, a first internal environment information acquisition sensor S2, a second internal environment information acquisition sensor S3, and a battery B are connected to the input side of the control device C, and detection / detection information can be acquired from these sensors, and information regarding the remaining battery charge can be acquired from the battery B.

[0072] The output side of the control device C is connected to a louver device 2, a plant cultivation shelf device 3, a mushroom cultivation shelf device 4, an opening / closing mechanism R, a carbon dioxide supply device e1, a ventilation fan e2, a blower e4, a mist supply device e5, and an irrigation device W, and is configured to be able to control these devices by sending control signals.

[0073] The control device C is also connected to a communication unit that performs wireless communication, and is configured to be able to send and receive information to and from an information terminal via the network NW. The information terminal is a personal computer, smartphone, tablet, or the like that is equipped with an input unit and a display screen. This allows the worker to operate the information terminal to perform various settings on the control device C, and the set information can be confirmed on the display screen of the information terminal.

[0074] <5. Example of control by the control device> Hereinafter, an example of control by the control device C will be described. The control device C has a plurality of control modes with different determination methods in controlling the light receiving direction F (elevation angle α2) of the solar panel P of the louver device 2. In addition, in the embodiment of the present invention, the upper louver device 2U, the lower louver device 2D, the upper front louver device 2F, and the upper rear louver device 2R are provided as the louver device 2, and the control device C can execute different control modes for each of these plurality of louver devices 2. In other words, a control mode can be executed independently for each louver device 2. Note that the control example by the control device C is not limited to only the following. Note that in the following description, the amount of solar radiation taken into the cultivation house 1, which is the amount of solar radiation (kWh / m2) minus the amount of shading by the louver device 2 (kWh / m2), is referred to as the amount of solar radiation introduced (kWh / m2). In addition, (amount of shading by the louver device 2 / amount of solar radiation) x 100 (%) is referred to as the shading rate of the louver device 2. For example, when the amount of solar radiation is 1.0 (kWh / m2) and the amount of solar radiation taken into the cultivation house 1 due to shading by the louver device 2, i.e., the amount of solar radiation introduced, is 0.8 (kWh / m2), the amount of shading by the louver device 2 (kWh / m2) is 0.2 (kWh / m2), and the shading rate of the louver device 2 is 20%.

[0075] [Control example] (I) Cultivation Priority Mode The control device C is configured to be able to select and execute the cultivation priority mode. The cultivation priority mode is started, for example, when an operator uses an information terminal to perform an operation to start the execution, and when the cultivation priority mode is executed by the control device C, the control device C controls the louver device 2 so that the inside of the cultivation space Sp1 has a target illuminance that is desirable for the growth of the plant N1.

[0076] When the cultivation priority mode is executed, the control device C acquires numerical information on the illuminance around the plant cultivation shelf device 3 at predetermined time intervals by the first cultivation environment information acquisition sensor S2. Next, the control device C compares the illuminance around the plant cultivation shelf device 3 with a target illuminance value desirable for the growth of the plant N1, which is set in advance in the control device C. Note that the comparison with the target illuminance value desirable for the growth of the plant N1 may be, for example, a comparison with an illuminance set for each hour on a daily basis, or the control device C may be configured to calculate an accumulated illuminance for each hour on a daily basis, and compared with the target accumulated illuminance for each hour.

[0077] At this time, when the illuminance around the plant cultivation shelf device 3 exceeds the target illuminance value desired for the growth of the plant N1, the amount of shading by the louver device 2 is increased by a predetermined amount by the rotation control of the solar panel P of the louver device 2, and the shading rate of the louver device 2 is increased. Conversely, when the illuminance around the plant cultivation shelf device 3 falls below the target illuminance value desired for the growth of the plant N1, the amount of shading by the louver device 2 is reduced by a predetermined amount by the rotation control of the solar panel P of the louver device 2, and the shading rate of the louver device 2 is reduced. Note that the rotation control of the solar panel P related to the increase and decrease of the amount of solar radiation introduced by the louver device 2 will not be described in detail, but for example, refer to JP 2019-198268 A. Note that when the cultivation priority mode is executed, the control device C controls the opening and closing mechanism K so that the opening and closing frame part 15b is in a horizontal position (i.e., the ceiling part 15 is in a closed state). As a result, the cultivation space Sp1 becomes a closed space, and the cultivation environment can be well controlled by various devices arranged in the cultivation space Sp1.

[0078] (II) Power generation priority mode The control device C is configured to be able to selectively execute the power generation priority mode. For example, the power generation priority mode is started when an operator uses an information terminal to perform an operation to start execution, and when the control device C executes the cultivation priority mode or the power generation priority mode, the control device C controls the louver device 2 so that the power generation efficiency of the louver device 2 is maximized.

[0079] When the power generation priority mode is executed, the control device C acquires detection information of the incident angle of sunlight from the sunlight incident angle detection sensor of the external environment information acquisition sensor S1 at every predetermined time interval, and controls the rotation mechanism K so that the light receiving direction F of the louver device 2 faces the direction of the sun SN (in other words, so that the light receiving direction F faces the direction of the incident sunlight and is parallel to it) based on the acquired information of the incident angle of sunlight. Note that, if the light receiving direction F of the louver device 2 cannot face the direction of the sun SN due to limitations on the movable range of the solar panel P, the elevation angle α2 is controlled to maximize the shading rate within the movable range of the solar panel P. Information on the incident angle of sunlight may be stored in advance in the control device C and used.

[0080] Furthermore, the control device C controls the opening and closing mechanism R for the upper front louver device 2F and the upper rear louver device 2R, opens the ceiling portion 15, and controls the light receiving direction F of the louver device 2 while taking into account the rotation angle θ of the rotation frame portion 15b. By opening the ceiling portion 15, the louver device 2 arranged on the ceiling portion 15 is inclined, which makes it easier for sunlight to enter, thereby improving the power generation efficiency of the entire louver device 2. In this case, the rotation angle θ of the rotation frame portion 15b may be determined to be a predetermined angle (e.g., 30°), or may be determined to be a maximum angle (e.g., 60°) at the time of sunrise in accordance with the solar altitude of the day, gradually reducing the rotation angle θ (e.g., -5° per hour) until the time of meridian, and gradually increasing the rotation angle θ (e.g., +5° per hour) from the time of meridian to the time of sunset.

[0081] (III) Automatic switching between cultivation priority mode and power generation priority mode The control device C is configured to be capable of automatically switching between a cultivation priority mode and a power generation priority mode. Fig. 11 is a schematic left side view of the cultivation house 1 for explaining the operation of the control device C in the cultivation priority mode. Fig. 12 is a schematic left side view of the cultivation house 1 for explaining the operation of the control device C in the cultivation priority mode. Fig. 13 is a flowchart showing the flow of the automatic switching process between the cultivation priority mode and the power generation priority mode.

[0082] As shown in Fig. 11 and Fig. 12, in this embodiment, the louver device 2 includes an upper louver device 2U, a lower louver device 2D, a front louver device 2F, and a rear louver device 2R. In a preferred embodiment of the present invention, the control device C performs automatic switching between the cultivation priority mode and the power generation priority mode by switching the upper louver device 2U, the front louver device 2F, and the rear louver device 2R between the cultivation priority mode and the power generation priority mode, and the lower louver device 2D is always controlled in the power generation priority mode. In other words, the lower louver device 2D has little effect on the illuminance around the plant cultivation shelf device 3 due to shading, so the power generation priority mode is always set to the power generation priority mode, and the energy efficiency of the cultivation house 1 can be improved by prioritizing power generation.

[0083] FIG. 11 illustrates a state in which the louver device 2 to be switched (i.e., the front louver device 2F and the rear louver device 2R) is switched to the cultivation priority mode in the automatic switching process, and the state in which the louver device 2 to be switched to is controlled by the control device C to realize the desired sunlight for the plant N1 for the amount of sunlight δ1 by shading is illustrated. Also, the lower louver device 2D, which is not the switching target, is illustrated to maximize the shading rate for the amount of sunlight δ1 and to introduce the amount of sunlight δ3 by shading. In this state, the cultivation space Sp1 is controlled to have the desired illuminance for the plant N1, and it is possible to favorably promote the growth of the plant N1.

[0084] 12 illustrates a state in which the louver devices 2 to be switched (i.e., the front louver device 2F and the rear louver device 2R) are switched to the power generation priority mode in the automatic switching process, and the louver device 2 to be switched and the lower louver device 2D that is not to be switched are controlled by the control device C to maximize the shading rate for the amount of solar radiation δ1, and the amount of solar radiation introduced by shading is δ4. In this state, power generation is prioritized over control of the growth environment of the plant N1, and this makes it possible to improve the energy efficiency of the cultivation house 1.

[0085] Next, the flow of the automatic switching process between the cultivation priority mode and the power generation priority mode will be described with reference to Fig. 13. When the automatic switching process is started, the control device C controls the louver device 2 to be switched to in the cultivation priority mode (step #1). Here, the condition for starting the automatic switching process can be, for example, that it is sunrise, or that an operator has instructed to start the automatic switching process by a predetermined operation of an information terminal, or the like.

[0086] After the cultivation priority mode is started, the control device C acquires information on the carbon dioxide concentration around the plant cultivation shelf device 3 at a predetermined time interval by the first cultivation environment information acquisition sensor S2 (step #2). Next, it is determined whether the amount of change in the carbon dioxide concentration at the predetermined time interval is equal to or less than a predetermined value (step #3).

[0087] Here, if it is determined that the amount of change in the carbon dioxide concentration over a predetermined time interval is not equal to or less than a predetermined value (N in step #3), it can be determined that the photosynthesis of the plant N1 is occurring, so the cultivation priority mode is continued (step #4).On the other hand, if it is determined that the amount of change in the carbon dioxide concentration over a predetermined time interval is equal to or less than a predetermined value (Y in step #3), it can be determined that the photosynthesis of the plant N1 is slowing down, so the power generation priority mode is executed (step #5).

[0088] Next, it is determined whether the automatic switching process has ended (step #6). Here, the conditions for ending the automatic switching process may be, for example, that it is sunset or that the operator has instructed the end of the automatic switching process by a predetermined operation of the information terminal. When it is determined that the automatic switching process has ended, the automatic switching process is ended (Y in step #6). On the other hand, when it is determined that the automatic switching process has not ended (N in step #6), the process returns to step #2 and continues. According to the above automatic switching process, when the photosynthesis of the plant N1 is active (the change in the carbon dioxide concentration is large), the cultivation priority mode is executed to promote the growth of the plant N1, and when the photosynthesis of the plant N1 is slowing down (for example, when the integrated illuminance for the plant N2 is sufficient), the mode can be automatically switched to the power generation priority mode, so that the energy efficiency of the cultivation house 1 can be improved while appropriately promoting the growth of the plant N1.

[0089] In addition, when neither the cultivation priority mode nor the power generation priority mode is being executed, the control device C is configured to be able to execute a manual operation mode in which an operator can control the operation of the opening / closing mechanism R and the rotation mechanism K in accordance with the operation by operating an information terminal.

[0090] <Floor configuration> Next, the configuration of the floor portion 12 will be described. Figure 14(a) is an exploded oblique view of the floor surface of floor section 12, Figure 14(b) is an oblique view showing the state of the floor surface of floor section 12 in a closed state, and Figure 14(c) is an oblique view showing the state of the floor surface of floor section 12 in an open state.

[0091] 14(a), the floor surface of the floor section 12 has a two-layer structure, and is provided with a fixed floor surface 121 fixed to the base section 11, and a sliding floor surface 122 slidably attached to the fixed floor surface 121. The fixed floor surface 121 is configured by attaching a pair of sliding rails 124 to a plurality of fixed plate materials 124, and bridging a plurality of rectangular fixed floor plate materials 125 across the plurality of fixed plate materials 124 at predetermined intervals along the longitudinal direction thereof.

[0092] The sliding floor surface 122 is constructed by suspending a plurality of rectangular sliding floor boards 127 at predetermined intervals along the longitudinal direction of a pair of rails 126 with sliding rollers. This makes it possible to attach the sliding floor surface 122 to the fixed floor surface 121 by slidably installing a pair of rails 126 with sliding rollers on a pair of sliding rails 124.

[0093] With this configuration, the floor section 12 can adjust the size of the opening (gap) formed between the multiple rectangular fixed floor plate materials 125 by sliding the sliding floor surface 122. As a result, the opening degree of the floor surface of the floor section 12 can be adjusted, which allows fine adjustment of the ventilation. In addition, the sliding operation (opening operation) of the sliding floor surface 122 can be detected by a contact sensor, and the control device C can be configured to acquire the detection information, and the ventilation fan e2 can be configured to operate to the exhaust side in conjunction with the sliding operation (for example, during an opening operation that maximizes the opening degree of the floor surface). This allows for rapid ventilation. In addition, a heat insulating material may be provided in the underfloor space S2 depending on the environment in which the cultivation house 1 is installed.

[0094] The embodiment of the present invention has been described above. The present invention is not limited to the above-described embodiment. It goes without saying that appropriate modifications may be made within the scope of the technical concept. For example, the control device C may be further configured to be capable of executing the following controls.

[0095] [Another control example] The control device C may be configured to control the opening and closing mechanism R to tilt the ceiling 15 and to horizontally position the solar panels P of the louver device 2, eliminating gaps between the solar panels P, regardless of whether the cultivation priority mode or the power generation priority mode is being executed, and to control the opening and closing mechanism R to tilt the ceiling 15 and to horizontally position the solar panels P of the louver device 2, eliminating gaps between the solar panels P. This can effectively prevent rain from entering the cultivation space Sp1. In addition, regardless of whether the cultivation priority mode or the power generation priority mode is being executed, the control device C may be configured to control the ceiling 15 to be in a closed state when the atmospheric pressure sensor is provided in the external environment acquisition sensor S1 to detect atmospheric pressure and when the atmospheric pressure sensor detects that the atmospheric pressure is lower than a predetermined value, to prevent the ceiling 15 from being blown by wind. Note that, when the rain sensor of the external environment acquisition sensor S1 detects rain and the atmospheric pressure sensor detects that the atmospheric pressure is lower than a predetermined value, it is desirable to control the ceiling 15 to be in a closed state. This can effectively prevent failure, wear, and the like of each mechanism.

[0096] <6. Variations> Each tier of the shelf portion 41 of the mushroom cultivation shelf device 4 may be configured to be height adjustable using an expandable pipe or the like, and each tier of the shelf portion 41 may be configured to be detachable by, for example, fixing it to the frame portions 42, 42 by bolting or the like, so that the number of tiers can be changed.

[0097] Steps #2 and #3 in FIG. 13 are steps for determining whether photosynthesis of plant N1 is taking place. An example of determining based on the change in carbon dioxide concentration has been shown, but it is not limited to this. It is possible to determine whether photosynthesis of plant N1 is taking place by various means, such as using conditions such as a change in leaf temperature, time (hours), weather, a predetermined amount of carbon dioxide supply having been reached, or a predetermined amount of accumulated solar radiation to plant N1 having been reached (when the conditions are met, the mode is automatically switched from cultivation priority mode to power generation priority mode).

[0098] The water storage tank for supplying water to the irrigation device W may be provided with a water pipe communicating with the ground surface so as to collect and store rainwater. In this case, a predetermined water flow mechanism such as a gutter may be provided so as to allow water to flow from the roof of the cultivation house 1 to the water storage tank.

[0099] The side wall 14 may be provided with a light-shielding heat insulating plate or a light-shielding plate at a height of about 50 cm from the floor on three sides except the north side. This increases the heat insulation effect in the area of ​​the side wall 14 where light transmission is not necessary for growth, and as a result, improves energy efficiency.

[0100] FIG. 15 is a schematic perspective view of a plant cultivation shelf device 3 according to another embodiment. As shown in FIG. 15, the multiple planter containers u1 may be arranged in two stages. In this case, by separating the multiple planter containers u1 approximately in the center, the spread of diseases of the plants N1 can be prevented, and a compact configuration can be made for easy installation, assembly, dismantling, and transportation, making it easy to process and manufacture, and providing a structure with improved steel construction. [Explanation of symbols]

[0101] 1. Cultivation House 2 Louver device 3 Plant cultivation shelf device 4 Mushroom cultivation shelf device 10 House Body 11 Foundation 12 pillars 13 Posts 14 Side wall 15 Ceiling 15a Ceiling frame 15b Opening and closing frame part 20 Mounting base 21 Rail section 22 Mounting piece 23 Rotating mounting part 23a Pedestal 23b Locking piece 23c Latch piece 24 Operation piece 231 First pivot axis 232 Second Pivot Axis e1 Carbon dioxide supply device e2 Ventilator e3 reflector e4 blower e5 mist supply device B Battery C Control device K Rotation mechanism k1 Rotation axis k2 Link arm k3 Link Bar k4 Swing rail R opening / closing mechanism M Electric motor N1 First crop (plant) N2 Second crop (mushrooms) P Solar panel Sp1 cultivation space Sp2 Underfloor space

Claims

1. Multiple louver devices capable of generating solar power by shading are installed on the open top and sides of the house body, which is formed in a roughly rectangular parallelepiped shape. Of the plurality of louver devices, the one positioned on the upper surface of the house body is configured to rotate and change its orientation together with the ceiling in accordance with the opening and closing operation of the ceiling, as the ceiling of the house body is configured to be able to open and close by an opening and closing mechanism. Within the greenhouse structure, a cultivation space for growing crops is formed, and furthermore, Within the cultivation space, a plant cultivation shelf device for cultivating plants, a mushroom cultivation shelf device for cultivating mushrooms housed below the plant cultivation shelf device, and a battery for charging the electricity generated by the louver device are provided. The louver device comprises a plurality of solar panels, a mounting base for mounting the plurality of solar panels parallel to each other on the same plane at equal intervals, and a rotation mechanism for synchronously rotating the plurality of solar panels mounted on the mounting base, and also, A cultivation greenhouse characterized by being equipped with a control device capable of controlling the driving of the opening / closing mechanism and the rotating mechanism.

2. The system includes a cultivation environment information acquisition sensor that acquires cultivation environment information within the cultivation space, The cultivation environment information acquisition sensor is configured to measure the carbon dioxide concentration around the plant cultivation shelf device. The control device is configured to execute two control modes for the louver device: a cultivation priority mode in which the louver device is controlled so that the illumination within the cultivation space reaches a target illumination level desirable for plant growth, and a power generation priority mode in which the louver device is controlled so that the power generation efficiency of the louver device is maximized. Furthermore, the control device is configured to execute an automatic switching process that automatically switches between the cultivation priority mode and the power generation priority mode. The cultivation greenhouse according to claim 1, characterized in that, in the automatic switching process, information on carbon dioxide concentration measured by the cultivation environment information acquisition sensor is acquired, and when it is determined that the amount of change in carbon dioxide concentration at a predetermined time interval is less than or equal to a predetermined value, the greenhouse is configured to automatically switch from the cultivation priority mode to the power generation priority mode.

3. The mushroom cultivation shelf device comprises a plurality of shelf devices, each having multiple upper and lower shelves for placing mushrooms and a pair of left and right frame sections for supporting the shelves, and each shelf is provided with a mushroom lighting lamp, and the plurality of shelf devices are configured to illuminate each other, making them illuminating the mushrooms. This is the cultivation house according to claim 1 or 2.

4. The cultivation house according to claim 1 or 2, characterized in that the battery is configured to receive surplus power from the battery of another cultivation house by connecting the charging plug provided on the battery of the battery of the other cultivation house to the charging plug of the other cultivation house, and further configured to supply surplus power to the other cultivation house by connecting the charging plug of the other cultivation house to the charging connector.

5. The cultivation environment information acquisition sensor comprises a rainfall sensor for detecting rain and a pressure sensor for detecting atmospheric pressure, and is configured to control the opening and closing mechanism to tilt the ceiling when the rainfall sensor detects rain, regardless of whether the cultivation priority mode and the power generation priority mode are in operation, and is further configured to control the ceiling to close when the pressure sensor detects that the atmospheric pressure has fallen below a predetermined value, as described in claim 2.

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