JP6135027B2 - Agricultural house - Google Patents

Description

  The present invention relates generally to an agricultural house, and more particularly to an agricultural house that regulates the environment in which plants are grown using curtains and windows.

  2. Description of the Related Art Conventionally, greenhouse houses called vinyl houses or pipe houses have been used to adjust plant growth environments when growing plants. This type of house is used to create an environment suitable for growing plants while using an external environment. The temperature and illuminance conditions are important in the environment in which plants are grown. To control the temperature and illuminance conditions, the opening of the curtain that reduces sunlight is controlled, and the outside air A technique for controlling the opening of a window for distribution has been proposed.

  For example, Japanese Patent Application Publication No. 2011-244597 (hereinafter referred to as “Reference 1”) describes that when the temperature in the greenhouse is too high, the skylight or the side window is opened to cool the greenhouse. A light-shielding curtain is provided to block sunlight incident from the ceiling or wall from reaching the hydroponics bed. The blackout curtain can be opened or closed manually or automatically. Moreover, the skylight, the side window, and the light shielding curtain are controlled based on the temperature inside the cultivation house.

  Since the technique described in Document 1 controls the light-shielding curtain, the skylight, and the side window based on the room temperature, a temperature sensor is required.

  An object of the present invention is to provide an agricultural house that can suppress an increase in equipment cost while having a function of controlling the ambient temperature of a plant.

  The agricultural house according to the present invention includes a house body in which a space for growing a plant is formed and covered with a translucent covering material, and a first light that attenuates external light irradiated on the plant. A curtain that is movable between a position and a second position that does not diminish the external light applied to the plant, and a first drive that moves the curtain between the first position and the second position A window that is movable between an apparatus and a closed position that does not allow ventilation between the interior and exterior of the house body and an open position that allows ventilation between the interior and exterior of the house body; and A second drive device that moves between a position and the closed position; and a control device that controls the first drive device and the second drive device; The first window arranged in the incident direction and the house body with sunset A second window arranged in an incident direction, wherein the curtain covers the first window at the first position and is arranged to expose the first window at the second position. 1 side curtain, and a second side curtain arranged to cover the second window at the first position and to expose the second window at the second position, the control device comprising: Acquiring information for distinguishing between a first time period including at least a part of a period in which the morning sun is irradiated on the house body and a second time period including at least a part of a period in which sunset is irradiated; According to the first time zone and the second time zone, the first side curtain, the second side curtain, and the first side so that the temperature and humidity in the interior satisfy predetermined growth conditions. A window and the second window independently Characterized in that the Gosuru.

Preferred embodiments of the invention are described in more detail. Other features and advantages of the present invention will be better understood with reference to the following detailed description and accompanying drawings.
It is a block diagram which shows embodiment. It is a perspective view which shows the external appearance of the agricultural house used for embodiment. 3A to 3C are diagrams illustrating an operation example in summer in the embodiment. 4A and 4B are diagrams illustrating an operation example other than summer in the embodiment. FIG. 5A is a diagram illustrating a control example of the curtain and the window in the embodiment, and FIG. 5B is a diagram illustrating an effect when the control of FIG. 5A is performed.

  As shown in FIG. 1, an agricultural house described below includes a house body 10 (see FIG. 2), a curtain 21, a first drive device 23, a window 22, a second drive device 24, and a control device 30. Prepare. The house body 10 is covered with a translucent covering material 12 (see FIG. 2), and a space for growing a plant (not shown) is formed inside.

  The curtain 21 is movable between a first position where the external light applied to the plant is attenuated and a second position where the external light applied to the plant is not attenuated. The first driving device 23 moves the curtain 21 between the first position and the second position. The window 22 is movable between a closed position in which ventilation is not performed between the interior and exterior of the house body 10 and an open position in which ventilation is performed between the interior and exterior of the house body 10. The second driving device 24 moves the window 22 between an open position and a closed position. The control device 30 controls the first drive device 23 and the second drive device 24.

  The window 22 includes a first window 221 disposed in a direction in which the morning sun is incident on the house body 10 and a second window 222 disposed in a direction in which the sunset is incident on the house body 10. The curtain 21 includes a first side curtain 211 and a second side curtain 212. The first side curtain 211 is disposed so as to cover the first window 221 at the first position and to expose the first window 221 at the second position. The second side curtain 212 is arranged so as to cover the second window 222 in the first position and to expose the second window 222 in the second position.

  The control device 30 acquires information for distinguishing between a first time zone including at least a part of the period in which the house body 10 is irradiated with the morning sun and a second time period including at least a part of the period in which the sunset is irradiated. . Further, the control device 30 controls the first side curtain 211 and the second curtain according to the first time zone and the second time zone so that the temperature and humidity inside the house body 10 satisfy predetermined growth conditions. The side curtain 212, the first window 221 and the second window 222 are independently controlled.

  According to such a configuration, the plant growth environment is controlled using the curtain 21 and the window 22, and the curtain 21 and the window 22 are controlled based on the date and time. It becomes possible to control the growth environment of the plant cultivated in the main body 10. That is, since the temperature sensor for monitoring the growth environment of a plant is unnecessary, it is possible to suppress an increase in equipment cost.

  The information for distinguishing between the first time zone and the second time zone preferably includes the date and time counted by the clock unit (for example, the built-in clock 34).

  Information for distinguishing between the first time zone and the second time zone is given to the control device 30 from the sensor 36 that detects a state where the house body 10 is irradiated with the morning sun and a state where the sunset is irradiated. desirable. The sensor 36 is either an illuminance sensor or a solar radiation sensor, and is preferably installed on the east side and the west side of the house body 10.

  It is desirable for the control device 30 to determine the position state between the closed position and the open position of each of the first window 221 and the second window 222 according to the time zone of the day. Moreover, the control apparatus 30 can determine the position state between each 1st position and 2nd position of each of the 1st side curtain 211 and the 2nd side curtain 212 according to the time slot | zone of a day. desirable.

  It is desirable that the control device 30 determines the time of movement of each of the first window 221 and the second window 222 according to the year and month of the year. Further, it is desirable that the control device 30 determines the time of movement of each of the first side curtain 211 and the second side curtain 212 according to the year and month of the year.

  In addition, the control device 30 is configured to move the first window 221 and the second window 222 to the open position when the time from the sunrise time to the sunset time is equal to or greater than the reference time. It is desirable to instruct the driving device 24.

  The curtain 21 preferably includes a roof curtain 210 disposed along the roof of the house body 10. In this case, the control device 30 instructs the first driving device 23 to move the roof curtain 210 to the first position in the season when the time from the sunrise time to the sunset time is equal to or greater than the reference time. To do.

  Hereinafter, the configuration of the present embodiment will be described in more detail. As shown in FIG. 2, the agricultural house includes a house body 10 for the purpose of preparing an environment for growing plants. The house body 10 includes a frame 11 configured by combining metal pipes as a structural material, and a covering material 12 supported by the frame 11. As the covering material 12, a synthetic resin film having translucency (desirably, transparent) is used.

  The house body 10 includes a roof portion 100 having a semicircular cross section, a pair of side wall portions 101 and 102 that support the roof portion 100 and face each other, and a pair of end wall portions 103 that are orthogonal to the side wall portions 101 and 102 and face each other. , 104 are integrally provided. The size of the house body 10 in the direction passing through the pair of end wall portions 103 and 104 is sufficiently larger (for example, 10 times or more) than the size in the direction passing through the pair of side wall portions 101 and 102. Therefore, in the following, a direction passing through the pair of end wall portions 103 and 104 is referred to as a longitudinal direction, and a direction passing through the pair of side wall portions 101 and 102 is referred to as a short direction. The house body 10 is formed in an inverted U-shaped cross section when viewed from the longitudinal direction. The house main body 10 described above is an example, and is not intended to limit the configuration of the house main body 10, and does not prevent the use of other materials for the house main body 10 or the formation of other shapes.

  There are no particular restrictions on the orientation of the house body 10, but if there is no restriction due to the shape of the land and it is not necessary to consider the effects of obstacles that interfere with sunlight, It is installed to face in the east-west direction. This is because the amount of sunshine for the plants grown in the house body 10 varies more in the shorter direction than in the case where the longitudinal direction of the house body 10 is in the east-west direction. Because there are few.

  The house body 10 includes a curtain 21 that is movable between a first position where external light incident on the interior is reduced and a second position where external light incident on the interior is not attenuated. The house body 10 also includes a window 22 that is movable between an open position that allows ventilation between the inside and the outside and a closed position that does not allow ventilation between the inside and the outside.

  The house body 10 is arranged as a curtain 21 along a roof curtain 210 arranged along the roof portion 100, a first side curtain 211 arranged along one side wall portion 101, and the other side wall portion 102. Second side curtain 212 (see FIGS. 3A and 3C). The roof curtain 210 adjusts the amount of incident external light from the roof portion 100 by moving between the first position and the second position. The first side curtain 211 moves between the first position and the second position, thereby adjusting the amount of incident external light from the one side wall portion 101. The second side curtain 212 By moving between the position and the second position, the amount of incident external light from the other side wall 102 is adjusted.

  The roof curtain 210, the first side curtain 211, and the second side curtain 212 are driven independently by the first driving device 23. The first driving device 23 includes a power source (not shown) such as a motor, and includes driving mechanisms respectively corresponding to the roof curtain 210, the first side curtain 211, and the second side curtain 212. .

  Furthermore, the house body 10 includes a first window 221 provided on one side wall 101 and a second window 222 provided on the other side wall 102 as the windows 22 (FIGS. 3A and 3C). reference). An opening that opens to the outside of the side wall 101 is formed at a position of the side wall 101 where the first window 221 is provided. An opening that opens to the outside of the side wall 102 is formed at a position of the side wall 102 where the second window 222 is provided. The first window 221 and the second window 222 adjust the ventilation resistance of air when venting between the inside and the outside of the house body 10 by adjusting the opening of the opening. The house main body 10 desirably includes windows (not shown) in the end wall portions 103 and 104 in addition to the side wall portions 101 and 102.

  The first window 221 and the second window 222 are independently driven by the second driving device 24. The second driving device 24 includes a power source (not shown) such as a motor, and includes driving mechanisms respectively corresponding to the first window 221 and the second window 222.

  When the positions of the roof curtain 210, the first side curtain 211, and the second side curtain 212 are changed, the degree to which external light is dimmed changes, and the amount of heat flowing into the house body 10 is adjusted. That is, by moving the roof curtain 210, the first side curtain 211, and the second side curtain 212, respectively, the rising speed of the internal temperature of the house body 10, that is, the community temperature (plant community temperature) is adjusted.

  On the other hand, when the opening degree of each of the first window 221 and the second window 222 is changed, the speed at which air flows between the inside and the outside of the house body 10 is adjusted. That is, by changing the opening degree of each of the first window 221 and the second window 222, the speed at which air is exchanged between the inside and outside of the house body 10 is adjusted, and the internal temperature of the house body 10 is adjusted. The Therefore, if there is a temperature difference between the inside and outside of the house body 10, the internal temperature of the house body 10 is adjusted by adjusting the opening degree of each of the first window 221 and the second window 222. Further, if there is a difference in the humidity inside and outside the house main body 10, the internal humidity of the house main body 10 is also adjusted by adjusting the respective opening degrees of the first window 221 and the second window 222.

  As described above, the internal temperature and the internal humidity of the house body 10 can be changed by appropriately adjusting the position of the curtain 21 and the opening degree of the window 22. For example, if the roof curtain 210 is closed and the opening degree of the first window 221 and the second window 222 is increased during a sunny day in the summer, an increase in the internal temperature of the house body 10 is suppressed. .

  The house body 10 is preferably provided with various devices such as watering the plant, generation of mist, ventilation, and ventilation in order to control the plant growth environment. Omitted. The house body 10 is preferably provided with a sensor for monitoring various information such as temperature, humidity, moisture content in soil, and illuminance to monitor the plant growth environment. Description in the embodiment is omitted. That is, the curtain 21 and the window 22 can be controlled based on the plant growth environment monitored by the sensor, and are controlled so as to be interlocked with a device provided as needed in addition to a device for watering. However, this type of operation will not be described.

  In the present embodiment, a configuration in which the control device 30 controls the position of the curtain 21 and the opening of the window 22 according to the date and time will be described. That is, the control device 30 gives instructions to the first driving device 23 and the second driving device 24 according to the date and time, and the positions of the roof curtain 210, the first side curtain 211, and the second side curtain 212. Are individually controlled, and the opening degrees of the first window 221 and the second window 222 are individually controlled. Each of the first drive device 23 and the second drive device 24 includes a power source such as a motor and an electromagnetic contactor (electromagnetic relay) that turns on and off power supply to the power source. Therefore, the control device 30 instructs on / off of the electromagnetic contactor according to the date and time, and controls the start and stop of energization of the power source, thereby controlling the position of the curtain 21 and the opening of the window 22. Do.

  The control device 30 is housed in a housing attached to the house body 10 and constitutes a control panel. The specific operation of the control device 30 will be described later. The control device 30 includes a device such as a microcomputer that operates according to a program as a main hardware element.

  Note that the control device 30 gives instructions to the first driving device 23 and the second driving device 24 through an interface unit provided in a general-purpose computer such as a personal computer or an interface unit added to the computer. Also good. That is, it is possible to cause the computer to function as the control device 30 by executing the program on the computer.

  As shown in FIG. 1, the control device 30 includes a first interface unit 31 (hereinafter, the interface unit is abbreviated as “I / F unit”) to which the first drive device 23 is connected, and a second drive. And a second I / F unit 32 to which the device 24 is connected. In addition, the control device 30 includes a storage unit 33 that stores various data to be described later, and a built-in clock 34 such as a real-time clock that measures the date and time. Further, the control device 30 determines the contents to be instructed to the first drive device 23 and the second drive device 24 using the date and time measured by the built-in clock 34 and the control data stored in the storage unit 33. The processing unit 35 is provided. The processing unit 35 will be described later.

  The control device 30 is connected to a device (operator and display) (not shown) serving as a user interface, through which the user can set the contents stored in the storage unit 33 and set the time of the built-in clock 34. Can be done. Further, the clock unit for measuring the date and time may be provided separately from the control device 30 instead of the built-in clock 34.

  The processing unit 35 controls the position of the curtain 21 and the opening degree of the window 22 as follows according to the date and time that the built-in clock 34 measures. The date and time means at least one of the month and day of the year and the time zone of the day. Hereinafter, a case where both the month and day of the year and the time zone of the day are used will be described.

  Specifically, as shown in Table 1, each month has an early (first to 10th day), mid (11 to 20th), and late (21st to last) class, and a time zone for each category. It is set. In addition, the year is divided into two seasons, with July to November being the summer and December to June being the summer. In addition, although the example shown in Table 1 is described without considering the place where the house body 10 is installed, the first time zone and the second time zone are actually the house as described later. It is adjusted according to the place where the main body 10 is installed.

  In the summer, the curtain 21 and the window 22 are controlled as shown in FIGS. 3A, 3B, and 3C, and in other than the summer, the curtain 21 and the window 22 are controlled as shown in FIGS. 4A and 4B. The first time zone shown in Table 1 means a time zone in which the state of FIG. 3A or FIG. 4A is selected, and the second time zone means a time zone in which the state of FIG. 3C or FIG. 4B is selected. During the daytime, which is the time zone between the first time zone and the second time zone in the summer, the state of FIG. 3B is selected. The start of the first time zone is the sunrise time, and the end of the second time zone is the sunset time. The first time period includes a period in which the house body 10 is irradiated with the morning sun, and the second time period includes a period in which the house body 10 is irradiated with sunset.

  In addition, the 1st time slot | zone should just contain at least one part of the period when the morning sun is irradiated to the main body 10 of a house. In other words, the first time period may include the entire period in which the house body 10 is irradiated with the morning sun, or may include only a part of the period in which the house body 10 is irradiated with the morning sun.

  In the summer, the temperature in the internal space of the house body 10 rises, and it is likely that problems such as plant head, yellowing of the leaves, burning of the tip of the leaves, wrinkles of the leaves, and diseases are likely to occur. In particular, soft vegetables are prone to this type of damage, and moreover, quality variations due to leaf pain tend to occur. Therefore, it is necessary to suppress the temperature rise in the internal space of the house body 10 and to reduce the leaf temperature.

  Therefore, in the summer, the processing unit 35 performs the first window 221 and the second window regardless of whether the first time zone, the second time zone, or the daytime, as shown in FIGS. 3A, 3B, and 3C. Instruct 222 to enter the open position.

  In addition, the processing unit 35 instructs the first side curtain 211 to fall halfway and the second side curtain 212 to be positioned at the second position during the first time period in summer (see FIG. 3A). . On the other hand, the processing unit 35 instructs the first side curtain 211 to be in the second position and the second side curtain 212 to be lowered halfway during the second summer time period (see FIG. 3C). . When the first side curtain 211 and the second side curtain 212 are in a state in which the second position is 100% open, the state in which the first side curtain 211 and the second side curtain 212 are lowered halfway is, for example, 30% open.

  Further, the processing unit 35 instructs the first side curtain 211 and the second side curtain 212 to be positioned at the second position (see FIG. 3B) during the summer day. In the summer, the roof curtain 210 is maintained in the first position in principle, and the incidence of sunlight from the roof portion 100 is suppressed. In the time zone from sunset to sunrise, the first side curtain 211, the second side curtain 212, and the roof curtain 210 may be moved to the second position in order to promote heat dissipation from the house body 10. Good.

  In the state of FIG. 3A, the lower end of the first side curtain 211 is positioned above the lower end of the first window 221, and the first side curtain 211 reduces the sunlight while reducing the first sunlight. Air can be circulated through the gap between the side curtain 211 and the first window 221. In the state of FIG. 3C, the lower end of the second side curtain 212 is located above the lower end of the second window 222, and the second side curtain 212 reduces the sunlight while reducing the second Air can be circulated through the gap between the side curtain 212 and the second window 222. In the state of FIG. 3B, since the opening degree of both the 1st side curtain 211 and the 2nd side curtain 212 is large, more air is distribute | circulated than the state of FIG. 3A and FIG. 3C. In addition, in FIG. 3A, FIG. 3B, and FIG. 3C, a wavy line shows the state through which air is distribute | circulating.

  As shown in FIG. 3B, when the first side curtain 211 and the second side curtain 212 are located at the second position during the summer day, the wind can be sufficiently introduced into the internal space of the house body 10. . Thereby, the internal temperature (group temperature) of the house main body 10 can be reduced. On the other hand, when the first side curtain 211 and the second side curtain 212 are located at the first position, the house main body despite the first window 221 and the second window 222 being located at the open position. It is not possible to get enough wind into the 10 interior spaces. For this reason, the internal temperature of the house main body 10 will rise. In addition, since the sun is near the south center during the daytime (because the altitude of the sun is high), even if the first side curtain 211 and the second side curtain 212 are located at the second position, The incidence of sunlight from 102 is small. Thereby, even if the 1st side curtain 211 and the 2nd side curtain 212 are located in a 2nd position, the raise of the internal temperature of the house main body 10 can be suppressed. That is, if the roof curtain 210 is maintained at the first position, the incidence of sunlight can be suppressed.

  As described above, in the summer, the curtain 21 suppresses the incidence of sunlight into the house body 10 and ventilates by increasing the opening degree of the curtain 21 as much as possible within a range in which sunlight is not directly incident. By this operation, the temperature rise in the internal space of the house body 10 is suppressed. Moreover, since the intense light of summer is suppressed by the curtain 21, the effect which performs the photosynthesis of a plant efficiently can be expected.

  On the other hand, except in the summer, the processing unit 35 causes the first window 221 and the second window 222 to be in the closed position regardless of the first time zone or the second time zone as shown in FIGS. 4A and 4B. Instruct to be. Although not illustrated, during the day, the first window 221 and the second window 222 may be set to an open position as necessary in order to adjust humidity in the internal space of the house body 10.

  In addition, the processing unit 35 moves the first side curtain 211 to the second position during the first time period (see FIG. 4A), and moves the second side curtain 212 to the second position during the second time period. (See FIG. 4B). In addition, the roof curtain 210 is maintained in the second position in principle except in the summer, and the incidence of sunlight from the roof portion 100 is promoted. In the time zone from sunset to sunrise, the first side curtain 211, the second side curtain 212, and the roof curtain 210 may be moved to the second position in order to promote heat dissipation from the house body 10. Good.

  In other words, except in summer, the curtain 21 in the direction in which sunlight is incident is moved to the second position so as to promote the incidence of sunlight on the house body 10 so as to suppress the heat radiation from the house body 10. The remaining curtain 21 is moved to the first position. In the time period from sunset to sunrise, the first side curtain 211, the second side curtain 212, and the roof curtain 210 are moved to the first position in order to suppress heat radiation from the house body 10. May be.

  The processing unit 35 basically operates the first side curtain 211, the second side curtain 212, the roof curtain 210, the first window 221, and the second window 222 as described above according to the season. The contents of the control. However, the processing unit 35 can also give instructions other than the operations described above. For example, on a sunny day, immediately after watering the plant, the ambient temperature of the plant can be reduced and dehumidified by the heat of vaporization by moving the roof curtain 210 to the second position and increasing the surface temperature. It becomes possible. In this case, if humidity falls, the roof curtain 210 will be closed and the temperature rise will be suppressed. The opening time of the roof curtain 210 is determined according to the amount of water at the time of flooding, and is adjusted in consideration of the temperature when the temperature is measured.

  By the way, although the 1st time slot | zone and 2nd time slot | zone shown in Table 1 are materialized if the house main body 10 is installed in the specific place, it is necessary to adjust if the place where the house main body 10 is installed differs. is there. Since the first time zone and the second time zone are set based on the solar altitude at the place where the house body 10 is installed, if the solar altitude according to the date and time is known, the first time zone and the second time zone are set. It is possible to adjust the two-hour zone.

  The place where the house body 10 is installed can be measured by a function as a GPS (Global Positioning System) receiver attached to the mobile phone. Further, when the mobile phone is used as the controller of the control device 30, the latitude and longitude of the place where the house body 10 is installed can be given to the control device 30 from the mobile phone. In the first time zone and the second time zone, it is more desirable to consider not only the altitude of the sun but also an object that affects the sunshine time around the house body 10. However, this type of object is not considered here.

  The storage unit 33 stores the first time zone and the second time zone shown in Table 1 in association with the latitude and longitude. Therefore, when the latitude and longitude of the house body 10 are given to the control device 30, the processing unit 35 determines the first according to the difference between the given latitude and longitude and the latitude and longitude stored in the storage unit 33. The time zone and the second time zone are corrected. In short, the altitude of the sun according to the date and time is corrected using the existing data representing the relationship between the altitude of the sun and the date and time required in advance for a specific location, and this data is corrected according to the location of the house body 10. It is calculated by.

  As described above, the control device 30 divides one month into the beginning, the middle, and the end in three minutes. In the summer, the first window 221 and the second window 222 are opened, and in the season other than the summer, An instruction to close the first window 221 and the second window 222 is given. On the other hand, the control device 30 may determine the time (movement time) for starting the maintenance of the closed state of the first window 221 and the second window 222 in units of one month as shown in Table 2. .

  The start time in Table 2 represents the time at which the maintenance of the closed state is started in one day. According to Table 2, the first window 221 and the second window 222 are closed after 15:00 in January, November, and December, and after 16:00 in October. The first window 221 and the second window 222 are closed. In the case of March to September, the first window 221 and the second window 222 are closed after 24:00. Once the first window 221 and the second window 222 are closed, the first window 221 and the second window 222 are maintained closed until the next morning first time period is started.

  FIG. 5A shows the control state of the curtain 21 and the window 22 in the summer, and FIG. 5B shows an actual measurement example of the plant community environment inside the house body 10 when the control of FIG. 5A is performed. The house body 10 was installed with the longitudinal direction set to the north-south direction. In FIG. 5B, characteristic θ1 indicates the temperature of the community, characteristic θ2 indicates the outside air temperature, characteristic η1 indicates the humidity of the community, and characteristic η2 indicates the humidity of the outside air. Further, the characteristic β1 represents the illuminance inside the house body 10.

  Measurement conditions were as follows. That is, the first window 221 and the second window 222 were kept open all day (characteristics W1, W2). Further, the roof curtain 210 is moved to the second position only at 19:00 to 21:00 (fully opened) as in the characteristic C0, and is moved to the first position (closed) at other times. . The first side curtain 211 on the east side is moved to the first position from 21: 0 to the next 5:30 (closed) and moved to the second position at 5:30 to 6:30 as in the characteristic C1. (Opened). Furthermore, the opening degree of the first side curtain 211 was set to 30% from 6:30 to 11:00, and moved (fully opened) to the second position from 11:00 to 21:00. The second side curtain 212 which is the west side is moved to the second position from 18:00:00 to 21:00 (opened) as in the characteristic C2, and is moved to the first position from 21:00:00 to the next 5:30. Moved (closed). Further, the second side curtain 212 was moved to the second position (opened) from 5:30 to 13:00, and the opening degree was set to 30% from 13:00 to 18:00.

  According to the measurement results, it can be seen that the plant community temperature θ1 could be lowered from the outside air temperature θ2 at 10:00 to 18:00. Moreover, the humidity η1 of the plant community was kept higher than the humidity η2 outside the house body 10, and drying of the plant could be avoided.

  As described above, in the present embodiment, the curtain 21 and the window 22 are controlled using the date and time measured by the built-in clock 34 without using a temperature sensor. Therefore, if the information measured by the temperature sensor is used and compared with a configuration that performs feedback control, the configuration is simple, and an increase in equipment cost at the time of introduction can be suppressed.

  A reference time may be set in order to distinguish between summer and non-summer. In this case, the control device 30 determines that the time when the time from the sunrise time to the sunset time is equal to or greater than the reference time is the summer, and changes to FIGS. 3A, 3B, and 3C according to the time zone of the day. What is necessary is just to control the curtain 21 and the window 22 so that it may become each shown state. Further, as described above, in the summer, the control device 30 instructs the first driving device 23 to move the roof curtain 210 to the first position.

  That is, the control device 30 determines the position state between the first position and the second position of each of the first side curtain 211 and the second side curtain 212 according to the time zone of the day. Moreover, the control apparatus 30 determines the position state between each closed position and the open position of the 1st window 221 and the 2nd window 222 according to the time slot | zone of a day.

  In the above-described operation example, the year / month / day is divided in units of about 10 days or in units of one month. However, the curtain 21 is controlled to the extent that the year is roughly divided into summer and non-summer. Is possible. On the other hand, since the internal environment of the house body 10 is adjusted for the purpose of plant growth, it is desirable to adjust the internal environment of the house body 10 according to the growth stage of the plant. That is, the conditions for distinguishing between summer and non-summer may be set based on the minimum temperature of the outside temperature on the previous day or the day, etc., according to the growth stage of the plant.

  The minimum temperature of the outside temperature of the previous day can be obtained through a telecommunication line such as the Internet. However, when using the minimum temperature of the outside temperature of the day, a temperature sensor (monitoring the temperature outside the house body 10) It is desirable to use (not shown). In this case, for example, if the minimum temperature of the outside air temperature is 20 ° C. or higher, it is determined that it is summer, and if the minimum temperature falls below 18 ° C., it may be determined that it is not summer. Moreover, the growth stage of a plant should be monitored visually and information may be given to the control apparatus 30 through an operating device.

  In the configuration example described above, the configuration example is shown in which both the curtain 21 and the window 22 are controlled according to the date and time. However, the control device 30 may be configured to control only the window 22 according to the date and time. Moreover, although the date and time includes both the month and day in the year and the time zone in the first day, the control device 30 uses only one of the month and day in the year and the time zone in the first day. The structure which controls at least one with the window 22 may be sufficient.

  In the control device 30, the information for distinguishing between the first time zone and the second time zone is not from the clock unit (for example, the built-in clock 34), but the house body 10 is irradiated with the sunrise and the sunset. It may be given from a sensor 36 (see FIG. 1) that detects the current state. That is, the control device 30 may distinguish between the first time zone and the second time zone using the output of one of the illuminance sensor and the solar radiation sensor instead of the date and time counted by the clock unit.

  The sensors 36 are preferably installed on the east side and the west side of the house body 10, respectively. By using the sensor 36, the curtain 21 and the window 22 can be controlled with respect to the morning sun or the sunset even when the shade is generated by the morning sun or the sunset depending on the location conditions of the house body 10.

  However, as shown in Table 1, depending on the season, the first time period continues until after the period when the morning sun is irradiated on the house body 10, and the second time period is the period when the sunset is irradiated on the house body 10. It starts from before. Therefore, even when the control device 30 acquires information for distinguishing between the first time zone and the second time zone from the sensor 36, the date and time counted by the built-in clock 34 is distinguished from the first time zone and the second time zone. It is desirable to use it together as information.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made according to design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it can be changed.

Claims (7)

A house body covered with a light-transmitting covering material and having a space for growing plants inside;
A curtain movable between a first position for dimming external light applied to the plant and a second position for dimming external light applied to the plant;
A first drive for moving the curtain between the first position and the second position;
A window that is movable between a closed position that does not allow ventilation between the interior and exterior of the house body and an open position that allows ventilation between the interior and exterior of the house body;
A second drive for moving the window between the open position and the closed position;
A control device for controlling the first drive device and the second drive device;
The window includes a first window arranged in a direction in which morning sun is incident on the house body, and a second window arranged in a direction in which sunset is incident on the house body,
The curtain includes a first side curtain arranged to cover the first window at the first position and to expose the first window at the second position; and the second curtain at the first position. A second side curtain arranged to cover the window and expose the second window in the second position;
The control device acquires information for distinguishing between a first time zone including at least a part of a period in which the morning sun is irradiated on the house body and a second time period including at least a part of a period in which the sunset is irradiated. The first side curtain and the second side curtain according to the first time zone and the second time zone so that the temperature and humidity inside the house body satisfy predetermined growth conditions. And independently controlling the first window and the second window;
The control device determines a position state between the first position and the second position of each of the first side curtain and the second side curtain according to a time zone of a day. A featured agricultural house. The agricultural house according to claim 1, wherein the information for distinguishing between the first time zone and the second time zone includes a date and time counted by a clock unit. Information for distinguishing the first time zone and the second time zone is:
Given to the control device from a sensor for detecting a state in which the morning sun is irradiated on the main body of the house and a state in which the sunset is irradiated;
The agricultural house according to claim 1, wherein the sensor is either an illuminance sensor or a solar radiation sensor, and is installed on the east side and the west side of the house body. The control device determines a position state between the closed position and the open position of each of the first window and the second window according to a time zone of one day. The agricultural house according to any one of the above. The agricultural house according to any one of claims 1 to 4, wherein the control device determines a time of movement of each of the first window and the second window according to a date of the year. The agricultural house according to any one of claims 1 to 5, wherein the control device determines a time of movement of each of the first side curtain and the second side curtain according to a year and month. . The curtain includes a roof curtain arranged along the roof of the house body,
The control device instructs the first driving device to move the roof curtain to the first position in a season when the time from sunrise time to sunset time is equal to or more than a reference time. The agricultural house according to any one of Items 1 to 5 and 7.

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