WO2017002296A1 - 制御装置及び農業用ハウス - Google Patents

制御装置及び農業用ハウス Download PDF

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Publication number
WO2017002296A1
WO2017002296A1 PCT/JP2016/002316 JP2016002316W WO2017002296A1 WO 2017002296 A1 WO2017002296 A1 WO 2017002296A1 JP 2016002316 W JP2016002316 W JP 2016002316W WO 2017002296 A1 WO2017002296 A1 WO 2017002296A1
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Prior art keywords
house
sensors
sensor
control
environment
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PCT/JP2016/002316
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English (en)
French (fr)
Japanese (ja)
Inventor
大治 磯部
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株式会社デンソー
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Publication of WO2017002296A1 publication Critical patent/WO2017002296A1/ja

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Definitions

  • the present disclosure relates to a control device that controls an environment in a house for growing crops and an agricultural house.
  • the environment such as temperature, humidity, wind speed, etc. in the house may vary depending on the size and shape of the house and the location of various environmental control devices and sensors.
  • the installation environment of the cultivated crop may not be uniform in the house. Therefore, in order to keep the environment in the house appropriate, environmental control that sufficiently considers environmental values such as different temperatures depending on the location is required. For example, acquire environmental values using multiple sensors at multiple locations in the house, and use the acquired multiple environmental values to implement global environmental control that takes into account the entire house from multiple viewpoints. Is desired.
  • Patent Document 1 discloses a control method for a house heater that performs environmental control using a temperature detected by a specific temperature sensor as a reference temperature.
  • the reference temperature detected by a specific temperature sensor is important data on whether or not to operate a blower and a burner, or a pump and a boiler, for example. Further, in Patent Document 1, when a temperature sensor for detecting a reference temperature becomes defective, any one of the remaining temperature sensors is replaced with a reference temperature in the house instead of the temperature sensor in a malfunction state. It is disclosed that it is used as a sensor for detecting.
  • Patent Document 1 when a specific temperature sensor fails, the other temperature sensor merely detects the reference temperature instead. Therefore, in Patent Document 1, it is not possible to carry out multi-point environmental control in consideration of the environment at different locations in the house using detection values from a plurality of sensors.
  • An object of the present disclosure is to provide a control device and an agricultural house capable of urgently improving environmental deterioration and performing multi-view environmental control even when any one of a plurality of sensors has an abnormality such as a failure. Is to provide.
  • a temperature environment in the house is determined according to control indices obtained using environmental values at a plurality of locations in the house measured by a plurality of sensors.
  • the control device that controls the humidity environment or the carbon dioxide environment when detecting a sensor that outputs an abnormal value among a plurality of sensors, informs that an abnormal sensor exists and outputs an abnormal value.
  • a control index is obtained using an environmental value measured by the remaining sensors excluding the sensor that outputs, and a control unit that controls a temperature environment, a humidity environment, or a carbon dioxide environment in the house according to the control index is provided.
  • an abnormal sensor when an abnormal sensor is detected among a plurality of sensors that measure environmental values at a plurality of locations in the house, an abnormality is notified and a control index is set using the remaining normal sensors. It is possible to continue environmental control from multiple perspectives. Thereby, the control apparatus which suppresses the bad influence which may be exerted on the crop between abnormality notification and completion of repair can be provided. Therefore, according to this control device, even when any one of the plurality of sensors has an abnormality such as a failure, the environmental deterioration can be urgently improved and multi-view environmental control can be performed.
  • an agricultural house includes a plurality of sensors that measure environmental values at a plurality of locations in the house by measuring environmental values in the house for growing crops, and a plurality of sensors. And a control device for controlling the temperature environment, the humidity environment, or the carbon dioxide environment in the house according to the control index obtained by using the environmental values at a plurality of locations in the house measured by the above.
  • the control device detects a sensor that outputs an abnormal value among a plurality of sensors, the control device notifies that there is a sensor in an abnormal state, and the remaining sensors excluding the sensors that output the abnormal value
  • the control index is obtained using the environmental value measured by the above, and the temperature environment, humidity environment or carbon dioxide environment in the house is controlled according to the control index.
  • an abnormal sensor when an abnormal sensor is detected among a plurality of sensors that measure environmental values at a plurality of locations in the house, an abnormality is notified and a control index is obtained using the remaining normal sensors. It is possible to provide an agricultural house that can continue environmental control from multiple perspectives. Thereby, the agricultural house can suppress the bad influence to the crops from abnormality notification to repair. Therefore, according to this agricultural house, even when any one of the plurality of sensors has an abnormality such as a failure, environmental deterioration can be urgently improved and multi-view environmental control can be performed.
  • the agricultural house 1 controls the inside of the house to an appropriate environment for growth by the control device 2 for the purpose of growing a predetermined crop 4 in the house.
  • the environmental factors to be controlled are, for example, room temperature, humidity, carbon dioxide concentration, solar radiation amount, etc. in the house.
  • the control device 2 controls the operation of various temperature adjusting devices, humidity adjusting devices, air flow adjusting devices, carbonic acid concentration adjusting devices, water supply adjusting devices, solar radiation amount adjusting devices and the like in order to properly control these environmental factors. It can be an environmental control controller.
  • Agricultural house 1 has various sensors that measure wind direction, wind speed, sunshine, precipitation, house temperature, humidity, carbon dioxide concentration, etc., opening / closing of house skylights and curtains, control of air conditioner, generation of mist And various control devices that generate carbon dioxide and the like, and a control device 2.
  • the control device 2 outputs a control signal corresponding to a control index obtained from measured values (for example, temperature, humidity, carbon dioxide concentration) at a plurality of locations in the house main body 3 to various adjustment devices, so that the situation inside and outside the house is obtained. Accordingly, the control is automatically performed so that the growth environment of the crop 4 is optimized.
  • the agricultural house 1 is also an air conditioning management system that can increase the yield by promoting photosynthesis by automatically controlling the temperature, carbon dioxide concentration, etc. in greenhouse cultivation of tomatoes.
  • the house body 3 includes, for example, a frame configured by combining metal members as structural materials, and a covering material supported by the frame.
  • a covering material a transparent synthetic resin film or glass is used.
  • the house main body 3 illustrated in FIG. 1 integrally includes a gable-like roof portion and two sets of side wall portions that support the roof portion and face each other, but this form is an example, and the house main body 3 This is not to limit the configuration of 3. Moreover, it does not prevent using other materials for the house main body 3, or forming in another shape.
  • the crop 4 is cultivated on a soil in a predetermined container such as a bed 38 provided in the house body 3.
  • a predetermined container such as a bed 38 provided in the house body 3.
  • the nutrient solution containing water and fertilizer is supplied to the soil through the pipe by the water feeder 37, the crop 4 grows by absorbing nutrients from the soil.
  • a predetermined number of beds 38 are arranged in the house so as to form a line at equal intervals.
  • the water supply machine 37 is a water supply pump controlled by the control device 2.
  • the control device 2 operates the water supply 37 at a predetermined time zone in one day to supply a target amount of nutrient solution to the soil.
  • the control apparatus 2 controls the water supply machine 37 so that the supply amount of nutrient solution may be adjusted with respect to the target amount according to the amount of solar radiation detected by the solar radiation sensor 52.
  • the circulation fan 33 is a blower installed at a position higher than the crop 4, the humidity sensor 57, and the side window 31 in the upper part of the house body 3.
  • the circulation fan 33 is controlled by the control device 2, and circulates the gas in the house main body 3 to be distributed throughout.
  • the circulation fan 33 constitutes an airflow forming device that forms an airflow in the house body 3 and around the crop 4, and promotes adjustment of humidity, temperature, carbon dioxide concentration, etc. in the house. It also contributes to promoting growth.
  • the control device 2 obtains a control index by using the measured values of the temperature sensor 56, the humidity sensor 57, and the carbon dioxide sensor 58, which are provided in plural.
  • the control device 2 operates the circulation fan 33 according to the control index obtained from the measured values in a plurality of locations in the house body 3 to increase or decrease the room temperature in the house, and to adjust the carbon dioxide concentration and humidity to the house. Control to make uniform inside.
  • the control device 2 determines the control index by, for example, calculation for obtaining a maximum value, a minimum value, an average value, etc. for a plurality of measurement values.
  • FIG. 2 shows an example of an environmental value detection location in the house body 3 by a plurality of sensors.
  • the temperature sensors 56 are arranged in the house body 3 in plan view, with three equal intervals in the arrangement direction in which the plurality of beds 38 are arranged, and both ends in the direction in which each bed 38 extends. It is a room temperature detecting means that is installed in a total of nine in the center.
  • the plurality of temperature sensors 56 are installed at both the corners of the house and the vicinity of the side walls, such as where the airflow is difficult to be formed and the airflow is stagnation and where the airflow is relatively easy to form such as the center. Therefore, it contributes to the implementation of environmental control from multiple perspectives.
  • the control device 2 determines the control index by the above-described calculation using the measured values of the plurality of temperature sensors 56. 2 may be replaced with a humidity sensor 57 or a carbon dioxide sensor 58. In this case as well, the above-described operational effects are obtained as in the case of the temperature sensor 56, and the control device 2 uses the measured values of the plurality of humidity sensors 57 or carbon dioxide sensors 58 to calculate the control index by the above-described calculation. decide.
  • the circulation fan 33 is installed in a form in which a place where an airflow is formed in the house can be selected.
  • the circulation fan 33 is movable by being fixed to a rail or the like extending horizontally or vertically in the house. It is preferable.
  • the mist generator 34 includes a mist tube installed at a position higher than the crop 4, the humidity sensor 57, and the side window 31 in the upper part of the house.
  • the mist tube has a plurality of nozzles attached to the wall of the tube to be watered, and is configured such that water is sprayed from the nozzles by adjusting the pressure that is passed through the tube by a pump or the like. Yes. Therefore, since the mist tube ejects water in the form of a mist, the mist falls from the upper part in the house over a relatively long time, and the humidity in the house can be gradually increased. Further, by operating the circulation fan 33 together with the mist ejection from the mist generator 34, the mist can be quickly spread in the house, and the humidity can be increased.
  • the mist generator 34 is controlled by the control device 2.
  • the control device 2 controls the mist generator 34 to operate in a predetermined time zone of the day to eject a target amount of fog so that the humidity environment in the house falls within the target range.
  • the control device 2 controls the humidity environment in the house to a target range by adjusting the amount of mist ejected by the mist generator 34 according to the control index obtained from the measured humidity values at a plurality of locations in the house body 3. .
  • control device 2 controls the mist generator 34 so as to increase or decrease the supply amount of the mist with respect to the target amount according to the amount of solar radiation detected by the solar radiation sensor 52. Further, when the relative humidity in the house measured by the humidity sensor 57 is low, the control device 2 operates the mist generator 34 to supply mist into the house and perform control to increase the relative humidity.
  • the mist generator 34 is operated mainly when humidification is performed. However, the mist generator 34 can be operated as a temperature lowering device that lowers the room temperature by promoting vaporization heat action by supplying mist into the house.
  • the house body 3 is provided with a curtain 32 that can be opened and closed between a closed state in which external light incident from the roof portion is blocked and an open state in which the crop 4 is irradiated without external light incident from the roof portion. ing.
  • the curtain 32 is used in combination with a cooling device or a heating device to keep the house cold or warm.
  • the roof part of the house main body 3 is provided with a skylight 30 that can be opened and closed, and by adjusting the opening amount of the skylight 30, it is possible to adjust the air ventilation resistance and the ventilation amount when taking outside air into the house.
  • the side window 31 which can be opened and closed is provided in the side wall part of the house main body 3, and by adjusting the opening amount of the side window 31, the ventilation resistance and ventilation amount of the air when taking in outside air in a house are adjusted. Can be adjusted. That is, the skylight 30 and the side window 31 are windows that can control the airflow flowing in and out of the house.
  • Each of the curtain 32, the skylight 30, and the side window 31 is driven by a power source such as a motor and is controlled by the control device 2.
  • a power source such as a motor
  • the control device 2 controls to drive the curtain 32 in the closing direction when the temperature in the house is lowered, and to drive the curtain 32 in the opening direction when increasing the temperature in the house.
  • the control device 2 controls the curtain 32 to be closed and keeps the heat.
  • the skylight 30 and the side window 31 are opened and closed so that the room temperature in the house approaches the target temperature during the daytime, and is closed at night and in the winter.
  • the control device 2 adjusts the opening / closing amounts of the skylight 30, the side window 31, the curtain 32, etc. according to the control index obtained from the measured temperature values at a plurality of locations in the house body 3, and targets the temperature environment in the house. Control to range.
  • the speed at which outside air is taken into the house body 3 can be adjusted by adjusting the opening amount of the skylight 30 and the side window 31.
  • the skylight 30 and the side window 31 can adjust the temperature using the temperature difference between the inside and outside of the house body 3 by taking outside air into the internal space of the house body 3. For example, in the summer or on a sunny day, the curtain 32 is closed and the opening amount of the skylight 30 and the side window 31 is largely controlled, which contributes to suppressing an increase in the room temperature of the house body 3.
  • the circulation fan 33, the skylight 30 and the side window 31 constitute an airflow forming device in the agricultural house 1.
  • the skylight 30 and the side window 31 can also comprise an airflow formation apparatus independently, even if the circulation fan 33 is not drive
  • outside air having a flow velocity of a certain level or more can be taken into the house body 3 depending on the outside wind direction, and an air flow including outside air inflow is formed in the house. it can.
  • the circulation fan 33 is thus used as an air flow forming device and can be used not only for adjusting the room temperature and humidity, but also for diffusing carbon dioxide in the house.
  • the agricultural house 1 includes a heat pump device 35 that functions as an air conditioner capable of supplying warm air and cold air into the house.
  • the main body of the heat pump device 35 is installed outside the house, and the conditioned air can be blown to a predetermined position such as around the crop 4 through a duct extending from the main body.
  • the ambient temperature of the crop 4 can be controlled by the conditioned air from the heat pump device 35.
  • the heat pump device 35 constitutes a cycle in which the refrigerant circulates in a circuit in which a plurality of heat exchangers, a compressor, a decompression device, and the like are connected in a ring shape.
  • the heat pump device 35 functions as a temperature raising device when the outside air heated by the heat radiating heat exchanger by the heat radiating action of the refrigerant is blown as warm air, and the outside air cooled by the cooling heat exchanger by the heat absorbing action of the refrigerant. Functions as a temperature lowering device.
  • the control device 2 controls the heat pump device 35 so that the room temperature around the crop 4 is maintained at a target temperature suitable for growth.
  • the agricultural house 1 includes a heater 36 that can supply warm air into the house.
  • the heater 36 is an air conditioner that can blow warm air to a predetermined position such as around the crop 4.
  • the heater 36 functions as a temperature raising device that can raise the temperature around the crop 4 with the heating air.
  • the heater 36 supplies air heated by an electric heater, a hot water heater, a combustion heater, or the like into the house.
  • the control device 2 controls the heater 36 so that the room temperature around the crop 4 is maintained at a target temperature suitable for growth.
  • the control device 2 controls the operation of the heat pump device 35, the heater 36, etc. according to the control index obtained from the temperature measurement values at a plurality of locations in the house body 3, and controls the temperature environment in the house to the target range. To do.
  • the agricultural house 1 includes a carbon dioxide generator 39 that supplies carbon dioxide into the house.
  • the control device 2 controls the carbon dioxide generator 39 so as to keep the carbon dioxide concentration in the house, particularly around the crop 4 appropriately.
  • the control device 2 operates the carbon dioxide generator 39 during a predetermined time of the day to adjust the carbon dioxide concentration in the house to a target value. Therefore, the carbon dioxide generator 39 is a photosynthesis promoting device.
  • the control device 2 controls the operation of the carbon dioxide generator 39 in accordance with the control index obtained from the measured values of the carbon dioxide concentration at a plurality of locations in the house body 3 to bring the carbon dioxide concentration environment in the house into the target range. Control.
  • the agricultural house 1 includes a plurality of various sensors that measure environmental information related to the growth of the crop 4.
  • the various sensors include, for example, a wind direction sensor 50, a wind speed sensor 51, a solar radiation sensor 52, a raindrop sensor 53, an outdoor temperature sensor 54, an outdoor humidity sensor 55, an indoor temperature sensor 56, an indoor humidity sensor 57, and a carbon dioxide sensor 58. It is an environmental sensor in the agricultural house 1 including the above.
  • the wind direction sensor 50 detects the wind direction outside the house body 3.
  • the wind direction information detected by the wind direction sensor 50 is input to the control device 2 and is used for opening control of these windows as the wind direction with respect to the skylight 30 and the side window 31.
  • the wind speed sensor 51 detects the wind speed outside the house body 3.
  • the wind speed information detected by the wind speed sensor 51 is input to the control device 2 and used for opening control of these windows as the wind speed for the skylight 30 and the side window 31.
  • the solar radiation sensor 52 detects the amount of solar radiation falling on the house body 3.
  • the amount of solar radiation information detected by the solar radiation sensor 52 is input to the control device 2 and used for estimating the amount of heat flowing into the house, and used for opening / closing control of the curtain 32 and room temperature control.
  • the detected amount of solar radiation can also be used to determine whether it is rainy or at night, and during sunny days.
  • the raindrop sensor 53 is a rain sensor provided outside the house body 3 and capable of detecting the presence or absence of rainfall.
  • the raindrop sensor 53 is, for example, a sensor that detects rain adhering to the panel as moisture, and detects electrical resistance between predetermined electrodes. The detected value of electrical resistance is input to the control device 2, and the control device 2 determines that rain is currently falling when the detected value is equal to or less than a certain resistance value.
  • the raindrop sensor 53 may be a sensor that detects rain adhering to the panel as water pressure. In this case, the pressure detected by the raindrop sensor 53 is input to the control device 2, and the control device 2 determines that it is currently raining when the detected value is equal to or greater than a certain pressure value.
  • the temperature sensor 54 detects the temperature of the outside air outside the house body 3 and sends it to the control device 2.
  • the humidity sensor 55 detects the humidity of the outside air outside the house body 3 and sends it to the control device 2.
  • the plurality of temperature sensors 56 detect the temperature inside the house body 3, for example, the temperature around the crop 4, and send the temperature environment value to the control device 2.
  • the plurality of humidity sensors 57 are humidity detection means for detecting the humidity in the room of the house body 3, for example, the humidity around the crop 4, and sends the humidity environment value to the control device 2.
  • the plurality of carbon dioxide sensors 58 are carbon dioxide concentration detection means for detecting the carbon dioxide concentration in the room of the house body 3, for example, the carbon dioxide concentration around the crop 4, and sends the carbon dioxide environment value to the control device 2.
  • the environment in which the crop 4 grows in the house body 3 changes by controlling various temperature adjusting devices, humidity adjusting devices, air volume adjusting devices, carbonic acid concentration adjusting devices, water supply adjusting devices, solar radiation amount adjusting devices, and the like.
  • the temperature adjusting device includes the skylight 30, the side window 31, the curtain 32, the circulation fan 33, the mist generator 34, the heat pump device 35, the heater 36, and the like that can be controlled to adjust the room temperature in the house.
  • the humidity adjusting device can be configured by a mist generator 34, a heat pump device 35, and the like that can be controlled so as to adjust the relative humidity in the house.
  • the air volume adjusting device can be configured by a skylight 30, a side window 31, a circulation fan 33, and the like that can be controlled to form an airflow in the house.
  • the carbonic acid concentration adjusting device can be constituted by a carbon dioxide generator 39 or the like controlled to adjust the carbon dioxide concentration in the house.
  • the water supply adjustment device can be constituted by a water supply 37 that is controlled to adjust water supply to the crop 4.
  • the solar radiation amount adjusting device can be configured by a curtain 32 that can be controlled to adjust the solar radiation amount flowing into the house.
  • the control device 2 adjusts the water supply pressure of the water supply 37, opens and closes the curtain 32, adjusts the opening amounts of the skylight 30 and the side window 31, a circulation fan 33, a mist generator 34, a carbon dioxide generator 39, a heater 36, In addition, each operation and stop of the heat pump device 35 are controlled.
  • An electromagnetic relay that turns on and off the power supply to each device is used to start and stop energization of each adjusting device.
  • the control device 2 is housed in a housing installed inside the house body 3 or outside the house body 3.
  • the control device 2 includes a device such as a microcomputer that operates according to a program as a main hardware element.
  • the control device 2 includes an interface unit (hereinafter also referred to as an I / F unit) 20 to which each adjustment device and various sensors described above are connected, an arithmetic processing unit 21, and a storage unit 22 that stores various data.
  • the arithmetic processing unit 21 performs an operation according to a predetermined program using environmental information acquired from various sensors through the I / F unit 20 and various data stored in the storage unit 22.
  • the I / F unit 20 and the arithmetic processing unit 21 correspond to a control unit of the control device 2.
  • the I / F unit 20 operates each adjustment device based on the calculation result by the calculation processing unit 21.
  • the I / F unit 20 is connected to a terminal device serving as a user interface, such as a personal computer 23, a control panel, a portable terminal, and the like.
  • the user can use the operation panel of the control device 2, the operation unit of the personal computer 23, the control panel, the terminal device, etc. to set the environment such as the room temperature in the house, set the time, etc.
  • the current operating state can be confirmed through the screen.
  • control device 2 In parallel with the environmental control in the house that is always performed to promote the growth of the crop 4. That is, the control device 2 constantly monitors whether or not various sensors for measuring environmental values such as temperature, humidity, and carbon dioxide concentration are abnormal. Fail-safe processing is performed to improve automatically.
  • the case where various sensors are determined to be abnormal is a case where a sensor that outputs a measurement value that is clearly recognized as abnormal among a plurality of sensors is detected. If such a sensor exists, when the control index is obtained using environmental values at multiple locations in the house as described above, the control index deviates from the appropriate value, so appropriate environmental control in the house is implemented. Can not. Therefore, environmental control that inhibits the growth of the crop 4 may be performed.
  • the abnormality of the sensor may occur due to a failure of the sensor itself, a disconnection of a communication line, a short circuit, adhesion of a foreign substance at a sensor detection unit, or the like.
  • the control shown in FIG. 3 is always executed if the agricultural house 1 is growing the crop 4 in order to avoid such a situation.
  • the process of the flowchart shown in FIG. 3 is executed by the control device 2.
  • the flowchart of FIG. 3 shows a processing procedure in a case where the number of temperature sensors for measuring room temperature is three or less, as an example of a plurality of sensors.
  • S10 it is determined whether or not the number of temperature sensors 56 used for determining the control index is two. If there are two temperature sensors 56, “YES” is determined in S 10, and it is determined in next S 11 whether or not a specific first sensor out of the two temperature sensors 56 has failed. When the measured value of the first sensor is a low value or a high value that is clearly not normal room temperature, a sensor abnormality condition of the first sensor is satisfied. An upper limit allowable value and a lower limit allowable value are set in advance, and in S11, it may be determined that the sensor abnormality condition is satisfied when the upper limit allowable value is exceeded or less than the lower limit allowable value.
  • the measured value of the first sensor cannot be used for determining the control index because the first sensor out of the two sensors is abnormal. Accordingly, in S15, the measurement value of the other second sensor is adopted to determine the control index, and the process for obtaining the control index is executed using this measurement value. And in the agricultural house 1, temperature control according to this control parameter
  • the abnormal state of the sensor is notified to the outside and measures such as repair are promoted, and the state in which the environment is controlled by an inappropriate control index until the repair is performed can be eliminated. It becomes possible. Further, this flowchart is executed at a predetermined time interval, for example, at an interval of 30 seconds. Therefore, when a predetermined time elapses after the end, the process is resumed from the process of S10, and this flowchart is always executed every predetermined time.
  • the user who recognizes the sensor abnormality by the process of S50 can try repair by himself or arrange repair for others. Until the repair is completed, the control device 2 continues the emergency improvement control based on the control index excluding the abnormal measurement value by executing the processes of S11, S15, and S50.
  • the sensor abnormal condition of the second sensor is satisfied.
  • an upper limit allowable value and a lower limit allowable value may be determined in advance, and in S21, it may be determined that the sensor abnormality condition is satisfied when the upper limit allowable value is exceeded or the lower limit allowable value is not reached.
  • the measured value of the second sensor cannot be used for determining the control index because the second sensor of the two sensors is abnormal. Therefore, in S14, the measurement value of the other first sensor is adopted to determine the control index, and the process for obtaining the control index is executed using this measurement value. And in the agricultural house 1, while performing temperature control according to this control parameter
  • the number of temperature sensors 56 is not two, it is determined as “NO” in S10, and it is determined in next S20 whether or not the number of temperature sensors 56 used for determining the control index is three. If there are three temperature sensors 56, “YES” is determined in S20, and it is determined in the next S21 whether or not a specific first sensor out of the three temperature sensors 56 has failed.
  • S21 If it is determined in S21 that the sensor abnormal condition is not satisfied for the first sensor, it is determined in S22 whether or not the specific second sensor has failed. If it is determined in S22 that the sensor abnormal condition is satisfied for the second sensor, the second sensor out of the three sensors is abnormal, and the measured value of the second sensor cannot be used for determining the control index. Therefore, in S26, the measured values of the first sensor and the third sensor are adopted to determine the control index, and the process of obtaining the control index is executed using the measured value. And in the agricultural house 1, while performing temperature control according to this control parameter
  • the abnormal state of the sensor is notified to the outside, and countermeasures such as repair are promoted, and the state in which the environment is controlled by an inappropriate control index until repair is eliminated. can do.
  • the control device 2 sets 25 ° C. as an example of a substitute value for room temperature, and executes processing using this set temperature as a control index.
  • This predetermined temperature is set to a temperature that does not adversely affect the growth of the crop 4.
  • the predetermined temperature may be set to a temperature according to the current season, time, and the like. Moreover, you may make it employ
  • control apparatus 2 of embodiment brings about is demonstrated.
  • the control device 2 detects a sensor that outputs an abnormal value among the plurality of sensors, the control device 2 notifies that there is an abnormal sensor (S50). Further, the control device 2 obtains a control index using the environmental values measured by the remaining sensors excluding the sensor that outputs the abnormal value (S14, S15, S25, S26, S27), and the house according to the control index. Control the temperature environment, humidity environment or carbon dioxide environment inside.
  • the control device 2 calculates a control index by calculating any one of the maximum value, the minimum value, and the average value for the environmental values measured by the remaining sensors excluding the abnormal sensors. According to this, when an environmental value changes with places in a house, the control parameter
  • the control device 2 When the control device 2 detects that an abnormal value is output for all of the plurality of sensors, the control device 2 notifies that an abnormal sensor exists. Further, the control device 2 controls the temperature environment, humidity environment, or carbon dioxide environment in the house according to a predetermined control index that does not adversely affect the growth of the crop 4.
  • the predetermined control index is set to a temperature, humidity, and carbon dioxide concentration that do not adversely affect the growth of the crop 4.
  • the predetermined control index may be set to an index according to the current season, time, and the like. In addition, an index obtained based on the past performance in a predetermined number of days may be adopted as the predetermined control index.
  • the agricultural house 1 has a temperature environment according to a plurality of sensors that measure environmental values at a plurality of locations in the house and a control index that is obtained using the environmental values at a plurality of locations measured by the plurality of sensors.
  • a control device 2 for controlling a humidity environment or a carbon dioxide environment.
  • the control device 2 detects a sensor that outputs an abnormal value among a plurality of sensors, the control device 2 notifies that an abnormal sensor exists. Further, the control device 2 obtains a control index using the environmental value measured by the remaining sensors excluding the sensor that outputs the abnormal value, and determines the temperature environment, humidity environment, or carbon dioxide environment in the house according to the control index. Control.
  • this agricultural house 1 when an abnormal sensor is detected among a plurality of sensors that measure environmental values at a plurality of locations, an abnormality is notified and a control index is obtained using the remaining normal sensors. Ask. According to this process, even if an abnormality occurs in the sensor, the environmental control in the multi-purpose and large-scale house can be continued, so that adverse effects on the crop 4 from the abnormality notification to the repair are suppressed. An agricultural house 1 can be provided. Therefore, according to the agricultural house 1, even if any one of the plurality of sensors has an abnormality such as a failure, the environmental deterioration can be urgently improved and multi-view environmental control can be provided.
  • the sensor abnormality control is described when the number of temperature sensors 56 is three or less. However, if the number of sensors used for determining the control index is two or more, the number is three or less. It is not limited. If the number of sensors is 4 or more, the flowchart described above will change the determination process related to the number of sensors in S10 and S20 to match the number of sensors used to determine the control index, and identify the faulty sensor. The above-described processes for performing are sequentially executed.
  • control device 2 may be configured to receive outputs from various sensors and to give instructions to each adjustment device through an interface unit included in the personal computer or an interface unit added to the personal computer. Good. That is, the personal computer can function as the control device 2 by executing the program on the personal computer.
  • the I / F unit 20 of the control device 2 may include a communication interface unit that acquires weather forecast information from the outside.
  • the control device 2 predicts the ambient humidity of the crop 4 from the weather forecast information acquired through the I / F unit 20 and adjusts the amount of water supplied to the bed 38 by the water feeder 37 based on the prediction result. be able to.
  • the tomato is an example of the crop 4, but the crop 4 is not limited to the tomato, and may be other vegetables and fruits.

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  • Environmental Sciences (AREA)
  • Greenhouses (AREA)
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CN117882592A (zh) * 2024-03-14 2024-04-16 兰州石化职业技术大学 一种复合日光温室大棚及控制方法

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JP6873542B2 (ja) * 2017-03-13 2021-05-19 大崎電気工業株式会社 栽培環境監視システム
KR102134190B1 (ko) * 2018-09-03 2020-07-15 농업회사법인 만나씨이에이 주식회사 자가 진단 농장 환경제어 시스템
JP7161829B2 (ja) * 2018-11-28 2022-10-27 日本トレシステック株式会社 情報管理システム
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