JP2017038547A - Control system of environment inside agricultural greenhouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control system and a control method of environment inside an agricultural greenhouse which are capable of optimally and highly accurately controlling cultivation environment in a greenhouse based on all kinds of environmental information inside/outside a greenhouse.SOLUTION: A control system 10 of environment inside an agricultural greenhouse of the present invention is constituted by including sensors 20 outside the greenhouse, sensors 30 inside the greenhouse, environmental adjustment devices 40, and an environmental control device 50. The environmental control device 50 comprises: an input part 51 to which at least a measurement value of environmental information inside/outside the greenhouse and a state of the environmental adjustment devices 40 is input; a storage part 52 in which the measurement value of environmental information inside/outside the greenhouse and the state of the environmental adjustment devices 40 by every prescribed time are accumulated in time series; an environmental information determination part 53 which determines the presence of changes of the measurement value of environmental information inside/outside the greenhouse; a searching part 54 which searches for past measurement values of environmental information inside/outside the greenhouse; an environmental control information setting part 55 which sets environmental control information on the environmental adjustment devices 40; an output part 56 which sends out the environmental control information to the environmental adjustment devices 40.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an environment control system for optimizing the cultivation environment of agricultural products in an agricultural house.

  In an agricultural house, in order to cultivate crops under optimal environmental conditions, temperature and humidity have been measured conventionally, and opening and closing work such as skylights, side windows, heat insulation curtains, light-shielding curtains, etc. so that they are in an optimal state. In addition, so-called “environmental control” such as operation of a heater or a blower is performed. However, in general environmental control in a house, the measured value of the environmental information (for example, the temperature in the house) at the present time is compared with the set value, and the measured value exceeds the set value or the measured value is the set value. Environmental control (for example, opening and closing work of the skylight) is performed when the value falls below. Therefore, the timing of environmental control is delayed, which may adversely affect the crops.

  Therefore, a control system that performs environmental control while predicting the environment in the house as needed is disclosed (for example, see Patent Document 1). The control system for an agricultural house opening / closing device disclosed in Patent Document 1 is a control system that automatically controls an opening / closing device that opens and closes a part of the roof of an agricultural house to perform ventilation and temperature adjustment in the house. Yes, based on a temperature sensor that is placed in the house room and measures the temperature in the house room, a timer unit, a current temperature measured by the temperature sensor at a predetermined time interval counted by the timer unit, and a past temperature that is traced back for a certain period of time A predicted temperature setting unit that sets a predicted temperature predicted in the future, and a switchgear using the predicted temperature set by the predicted temperature setting unit and a preset target temperature for each predetermined time interval timed by the timer unit as determination elements And a predictive open / close control unit that controls open / close of the image by a predetermined width.

  With the agricultural house opening / closing device control system according to Patent Document 1 having the above-described configuration, the opening / closing device is controlled to open and close while predicting the temperature in the house room at any time, thereby achieving highly accurate temperature control. Further, useless opening / closing control of the opening / closing device can be reduced, and frequent up-and-down fluctuation in the house room in a short time by opening / closing control is prevented.

JP 2011-205948 A

  According to the control system for an agricultural house opening and closing device disclosed in Patent Document 1, since the opening and closing device is controlled to open and close while predicting the temperature in the house at any time, it is possible to prevent crops from being delayed due to environmental control timing delays as in the past. It can be expected to reduce adverse effects.

  However, since there are various factors that affect the cultivation environment in the house, a control system that can control the cultivation environment in the house with higher accuracy from any environmental information is required.

  Therefore, in view of the above-mentioned problems, the inventors of the present invention have an agricultural house environment control system and an agricultural house environment that can control the cultivation environment inside the house optimally and with high accuracy from any environmental information outside the house. As a result of intensive studies to provide a control method, the present invention has been achieved.

  That is, the environment control system in the agricultural house according to the present invention is a control system that automatically and optimally controls the cultivation environment in the farm house based on the environment information in the farm house. One or more outside sensors to be measured, one or more in-house sensors for measuring environmental information in the house, an environment adjusting device for adjusting the cultivation environment in the house, and environmental control for controlling the environment control device And the environmental control device includes at least an external environmental information measurement value measured by the external sensor, an internal environmental information measurement value measured by the internal sensor, and the environment. An input unit for inputting the state of the control device, and the environmental information measurement value outside the house, the environmental information measurement value inside the house, and the state of the environmental control device are stored in time series for each predetermined time. Comparing a storage unit with a preset cultivation environment setting value in the house and the in-house environment information measurement value from the input unit, the in-house environment information measurement value is within the range of the cultivation environment setting value Whether the environmental information measurement value in the house is within the range of the cultivation environment setting value, the latest environmental information measurement value outside the house and the environmental information measurement value in the house, and the immediately preceding An environmental information determination unit that determines whether there is a change in the environmental information measurement value outside the house and the environmental information measurement value in the house, the latest environmental information measurement value outside the house and the environmental information measurement value in the house, The previous house that is the same as or approximates to the latest outside-environment environment information measurement value and the in-house environment information measurement value when there is a change in the immediately preceding outside-environment environment information measurement value and the in-house environment information measurement value A search unit that searches the storage unit for an environmental information measurement value, an in-house environmental information measurement value, and a state of the environmental control device, a past state of the environmental control device searched in the search unit, and the latest environment An environmental control information setting unit configured to set environmental control information of the environmental control device when the state of the latest environmental control device is different from a past state of the environmental control device, comparing with the state of the environmental control device; And an output unit for sending the environmental control information set by the information setting unit to the environmental control device.

In the agricultural house environment control system of the present invention, the outside sensor is selected from a temperature sensor, a humidity sensor, a solar radiation sensor, a wind direction sensor, a wind speed sensor, a rain sensor, a CO ₂ sensor, and an atmospheric pressure sensor. It is characterized by.

In the agricultural house environment control system according to the present invention, the house sensor includes a temperature sensor, a humidity sensor, a solar radiation amount sensor, a medium temperature sensor, a plant body temperature sensor, an irrigation temperature sensor, a soil moisture sensor, and a CO ₂ sensor. The irrigation flow rate sensor is selected.

Furthermore, in the environmental control system for an agricultural house according to the present invention, the environmental control device includes a ventilation window, a heat insulation curtain, a light-shielding curtain, a heater, a CO ₂ generator, a watering device, a heat pump, a circulation fan, a ventilation fan, and a fine fog device. It is selected from a dehumidifying device and electric illumination.

  The agricultural house environment control method of the present invention is a control method for optimally automatically controlling the cultivation environment in the agricultural house based on the environmental information inside the agricultural house, and the cultivation environment setting in the house A cultivation environment setting value input step for inputting a value, an information acquisition step for acquiring the environmental information measurement value outside the house and the state of the environmental control device, and the environmental information measurement value in the house within the range of the cultivation environment setting value An in-house environment determination step for determining whether or not there is, and when the in-house environment information measurement value is within the range of the cultivation environment setting value, the latest in-house environment information measurement value and the immediately preceding outside of the house When it is determined that there is a change in the outside environmental information determination step for determining whether there is a change in the measured value of the internal environment information and in the outside environmental information determination step, the latest how-to A search data list creation step for creating a search data list based on measured values of outside environment information, a search step for searching for environmental information storage data that is the same as or similar to the search data list, and past data searched in the search step If it is determined in the environmental control device determination step that determines whether or not the state of the environmental control device is different from the latest state of the environmental control device, and the environmental control device determination step, the past environment It includes an environment control information setting step for setting environment control information of the environment adjustment device based on a state of the adjustment device, and an output step for sending the environment control information to the environment adjustment device.

  According to the environmental control system for an agricultural house of the present invention, since the optimum environmental control information can be obtained from the past accumulated environmental information based on the current environmental information outside the house, the environmental control device can be controlled. The inside cultivation environment can be controlled optimally and with high accuracy.

Further, the outside sensor according to the environmental control system for agricultural house of the present invention is selected from a temperature sensor, a humidity sensor, a solar radiation sensor, a wind direction sensor, a wind speed sensor, a rain sensor, a CO ₂ sensor, and an atmospheric pressure sensor. The optimum environmental control information can be obtained from any environmental information outside the house, and the optimum and highly accurate environmental control device can be controlled.

Furthermore, the in-house sensor according to the environmental control system for agricultural house of the present invention includes a temperature sensor, a humidity sensor, a solar radiation amount sensor, a medium temperature sensor, a plant body temperature sensor, an irrigation temperature sensor, a soil moisture sensor, a CO ₂ sensor, By selecting from the irrigation flow rate sensor, it is possible to obtain the optimum environment control information from all the environment information in the house, and it is possible to control the environment adjusting device with optimum and high accuracy.

The environmental regulation device according to an agricultural house environment control system of the present invention, the ventilation windows, insulation curtains, curtains, heaters, CO ₂ generators, irrigation devices, heat pumps, circulating fan, ventilation fan, fogging device, By selecting a plurality of dehumidifying devices and lightings, it is possible to provide a more optimal cultivation environment in the house and to realize highly accurate environmental control.

  Further, according to the environmental control method for an agricultural house of the present invention, based on the current environmental information inside the house, it is possible to obtain the optimal environmental control information from the past accumulated environmental information and control the environmental control device. The cultivation environment in the house can be controlled optimally and with high accuracy.

It is a schematic block diagram which shows the whole structure of the environment control system for agricultural houses which concerns on one Embodiment of this invention. It is a schematic flowchart which shows the environment control method by the agricultural house environment control system shown in FIG.

  Hereinafter, an embodiment of an environment control system for an agricultural house according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of an agricultural house environment control system 10 according to an embodiment of the present invention. As shown in the figure, the agricultural house environment control system 10 of the present embodiment is a control system that optimally automatically controls the cultivation environment in the agricultural house based on the environmental information inside and outside the agricultural house. The sensor 20 outside the house that mainly measures environmental information outside the house 1, the sensor 30 inside the house that measures environmental information inside the house 1, the environment adjustment device 40 that adjusts the cultivation environment inside the house 1, and the environment adjustment And an environment control device 50 that controls the device 40.

The environmental information outside the house 1 is very diverse. First, the environmental information outside the house 1 includes, for example, the temperature outside the house, the humidity outside the house, the amount of solar radiation outside the house, the wind direction, the wind speed, the rainfall, the CO ₂ concentration, the atmospheric pressure, and the like.

The environmental information outside the house 1 is measured by the outside sensor 20. Although the outside sensor 20 is not particularly limited, for example, a temperature sensor, a humidity sensor, a solar radiation sensor, a wind direction sensor, a wind speed sensor, a rainfall sensor, a CO ₂ sensor, an atmospheric pressure sensor, and the like can be used. A plurality of outside sensors 20 are configured by selecting a plurality.

On the other hand, the environmental information in the house 1 includes, for example, the temperature in the house, the humidity in the house, the amount of solar radiation in the house, the medium temperature, the plant body temperature, the irrigation temperature, the soil moisture, the CO ₂ concentration, the irrigation amount, etc. Is measured by the sensor 30 in the house.

The in-house sensor 30 is not particularly limited, and examples thereof include a temperature sensor, a humidity sensor, a solar radiation amount sensor, a medium temperature sensor, a plant body temperature sensor, an irrigation temperature sensor, a soil moisture sensor, a CO ₂ sensor, and an irrigation flow rate sensor. The in-house sensor 30 is configured by selecting one or more of these various in-house sensors.

The environmental control device 40 is an environmental control device for performing environmental control in order to make the house 1 an optimal cultivation environment. For example, a ventilation window, a heat insulation curtain, a light-shielding curtain, a heater, a CO ₂ generator, irrigation Examples thereof include a device, a heat pump, a circulation fan, a ventilation fan, a fine fog device, a dehumidifying device, and electric lighting. By automatically controlling the environmental adjustment device 40 selected from these, the environmental control is performed so that the cultivation environment in the house 1 is optimized. A specific control method will be described later.

  The environmental control device 50 is a control device for automatically controlling the environmental adjustment device 40, and at least the outside environmental information measurement value measured by the outside sensor 20 and the inside of the house measured by the in-house sensor 30. The input unit 51 to which the environmental information measurement value and the state of the environmental control device 40 are input, the environmental information measurement value outside the house for each required time, the environmental information measurement value in the house, and the state of the environmental control device 40 are accumulated in time series. The storage unit 52, the preset cultivation environment setting value in the house 1 and the house environment information measurement value from the input unit 51 are compared, and the house environment information measurement value is within the range of the cultivation environment setting value. When the environmental information measurement value in the house is within the range of the cultivation environment setting value, the latest environmental information measurement value outside the house, the previous environmental information measurement value outside the house, and / or the latest house Interior environment An environmental information determination unit 53 for determining whether there is a change between the information measurement value and the immediately previous in-house environmental information measurement value, the latest external environmental information measurement value, the previous external environmental information measurement value, and / or the latest In-house environmental information measurement values and previous in-house environmental information measurement values, and past in-house environmental information measurement values that are the same as or close to the latest in-house environment information measurement values and in-house environment information measurement values The search unit 54 that searches the storage unit 52 for the measured value of environmental information in the house and the status of the environmental control device, and compares the past status of the environmental control device searched by the search unit 54 with the latest status of the environmental control device The environment control information setting unit 55 that sets environment control information of the environment control device when the state of the latest environment control device is different from the state of the past environment control device, and the environment control information setting unit 55 Environmental control information includes an output unit 56 for sending to the environment adjusting apparatus 40, the.

  The input unit 51 related to the environmental control device 50 receives the outside-house environment information measurement value MO and the inside-house environment information measurement value MI measured by the outside-house sensor 20 and the inside-house sensor 30, and the state of the environment adjustment device 40. Is done. For example, by configuring the sensor 20 outside the house with a temperature sensor and a solar radiation sensor, measured values of the temperature outside the house and the solar radiation outside the house are input from the sensor 20 outside the house to the input unit 51 as environmental information outside the house 1. The

Further, for example, by configuring the in-house sensor 30 with a temperature sensor, a humidity sensor, and a CO ₂ sensor, the measured values of the in-house temperature, the in-house humidity, and the in-house CO ₂ concentration can be obtained from the in-house sensor 30. Information is input to the input unit 51.

  The state S of the environmental control device 40 is input to the input unit 51 together with the outside-environment environment information measurement value MO outside the house 1 and the in-house environment information measurement value MI inside the house 1. For example, when the environmental adjustment device 40 is a ventilation window, the opening degree of the ventilation window at the time of each environmental information measurement is input to the input unit 51 together with the previous measurement values MO and MI. As described above, examples of the environmental adjustment device 40 include a ventilation window and a heater. The state S of the environmental adjustment device 40 can be acquired by an opening sensor, an ON / OFF sensor, or the like.

  Then, the storage unit 52 stores the environmental information measurement value MO outside the house, the environmental information measurement value MI inside the house, and the state S of the environmental control device 40 that are input to the input unit 51 as environmental information accumulation data MD. Accumulated in time series.

  On the other hand, the environmental information determination unit 53 first compares the cultivation environment setting value MS in the house 1 set in advance with the in-house environment information measurement value MI from the input unit 51 as the primary determination, and the in-house environment information It is determined whether or not the measured value MI is within the range of the cultivation environment set value MS. As a cultivation environment in the house 1, for example, when it is desired to set the temperature in the house 1 to 25 ° C., a target set temperature (cultivation environment setting value) from the target environment information input unit 57 to the in-house environment control information determination unit 53 MS = 25 ° C.). Then, the in-house environment information measurement value MI (here, the in-house temperature) obtained from the input unit 51 is compared with the cultivation environment setting value MS, and the in-house environment information measurement value MI is within the range of the cultivation environment setting value MS. It is determined whether or not (for example, the cultivation environment set value MS = 25 ° C. ± 0.5 ° C.).

And when the in-house environment information measured value MI is within the range of the cultivation environment set value MS, as the secondary determination, the latest outside-environment environment information measured value MO _n and the immediately preceding outside-environment environment information measured value MO _n-1 and It is determined whether or not there is a change in the latest house environment information measurement value MI _n and the immediately previous house environment information measurement value MI _n−1 . For example, when measuring the temperature outside the house and the amount of solar radiation as the environment information outside the house, and measuring the temperature and humidity inside the house as the house environment information, the cultivation environment setting value MS and the house environment information measurement value in the above primary determination The latest house temperature, which is MI, is compared and judged, and in the subsequent secondary judgment, the latest house outside temperature and the last house outside temperature, the latest solar radiation amount and the last solar radiation amount, the latest house humidity and the last house humidity The humidity in the house is compared with each other, and it is determined whether any of the measured values has changed.

In the search unit 54, the latest measured environmental information outside the house MO _n and the last measured environmental information outside the house MO _n−1 and / or the latest measured environmental information inside the house MI _n and the last measured environmental information within the house. When MI _n−1 is changed, the latest environmental information measurement value MO _n outside the house and the environmental information accumulation data that is the same as or similar to the environmental information measurement value MI _n inside the house, that is, the past environmental information measurement value MO _n outside the house. _-x, searches the environment information storage data _{MD n-x} is a combination of house environment information measured value _{MI n-x} and environmental regulation device 40 state _{S n-x} from the storage unit 52. For example, when the cultivation environment setting value MS is set to the house 1 internal temperature = 25 ° C., the environmental information determination unit 53 determines the environmental information measurement value in the house if the house environmental information measurement value MI = 25 ° C. ± 0.5 ° C. When MI is determined to be within the range of the cultivation environment setting value MS, and there is a change in the amount of solar radiation, the latest outside environment information measurement value MO _n and the immediately outside outside environment information measurement value MO _{n− 1} is determined to be changed, and the latest data on the outside-environment environment information measurement value MO _n and the inside-house environment information measurement value MI _n are sent to the search unit 54. Then, in the search unit 54, the past outside-house environment information measurement value MO nx and the inside _- house environment information that are the same as or similar to the combination of the latest outside-house environment information measurement value MO _n and the in-house environment information measurement value MI _n. measurements _{MI n-x,} further combination of the states _{S n-x} of the environmental regulation device 40, i.e. environmental information storage data _{MD n-x} is retrieved from the storage unit 52.

When the environmental information determination unit 53 determines that the in-house environmental information measured value MI is out of the range of the cultivation environment setting value MS, the conventional environmental control, that is, the state S of the environmental adjustment device 40 is set to manual or It will be adjusted immediately by automatic control. Moreover, even if the in-house environment information measured value MI is within the range of the cultivation environment set value MS, the latest outside-environment environment information measured value MO _n and the immediately preceding outside-environment environment information measured value MO _n-1 and / or the latest If it is determined that there is no change in the in-house environmental information measured value MI _n and the previous in-house environmental information measured value MI _n−1 , the past data search in the search unit 54 is not performed, and the current state is maintained. The Rukoto.

The environment control information setting unit 55 receives the data on the past state S _nx of the environmental control device 40 searched by the search unit 54, and receives the past state S _nx of the environmental control device 40 and the latest environmental control. comparing the state S _n of the apparatus 40, the state S _n of the latest environmental adjusting device 40 for setting the environmental control information P of the environment adjustment device 40 at different times the state S _n-x of past environmental regulation device 40 . Incidentally, when a state S _n and a state S _n-x are the same state, environment control information P is not set, so that the state S _n of the environmental regulation device 40 is maintained.

  Then, the environmental control information P set by the environmental control information setting unit 55 is sent to the output unit 56, and the environmental control information P is sent from the output unit 56 to the environmental control device 40 according to the agricultural house 1. The environment control device 40 is automatically controlled by the environment control information P, whereby the cultivation environment in the house 1 is maintained at the cultivation environment input from the target environment information input unit 57.

  As described above, according to the agricultural house environment control system 10 according to the present embodiment, when the house environment information measurement value MI is within the range of the cultivation environment setting value MS, that is, the cultivation environment in the house 1 is stabilized. The optimum state Sn of the environmental control device 40 can be obtained from the past environmental information storage data MD based on the latest outside environmental information measurement value MO1 and the internal environmental information measurement value MI1. Predictive environmental control corresponding to changes in the environmental information measurement values MO and MI inside the house 1 can be performed.

  Next, the environmental control method by the agricultural house environmental control system 10 according to the embodiment of the present invention will be described in detail with reference to FIG. Here, in the agricultural house environment control system 10 of this embodiment, the outside sensor 20 is constituted by a temperature sensor and a solar radiation amount sensor, and the inside sensor 30 is constituted by a temperature sensor. Moreover, let the environmental control apparatus 40 be a ventilation window.

  First, in step S <b> 11, target environmental information (cultivation environment setting value MS) in the house 1 is input from the target environment information input unit 57 to the environment control device 50. In the present embodiment, the temperature in the house 1 is set to 25 ° C., that is, the cultivation environment setting value MS = 25 ° C.

  Next, in step S <b> 12, the outside environment information measurement value MO and the inside environment information measurement value MI are acquired from the outside sensor 20 and the inside sensor 30. In the present embodiment, the measured value of the temperature outside the house and the amount of solar radiation outside the house is input to the input unit 51 as the environmental information measured value MO outside the house 1, and the measured value of the house temperature is input as the environmental information measured value MI inside the house 1. Is done. The environmental information measurement values MO and MI input to the input unit 51 are time-series as environmental information accumulation data MD together with the state S of the environmental control device 40 at the time of measurement, that is, the opening degree of the ventilation window in this embodiment. Stored in the storage unit 52.

  In step S13, the cultivation environment setting value MS in the house 1 set in advance and the house environment information measurement value MI from the input unit 51 are compared, and the house environment information measurement value MI is compared with the cultivation environment setting value MS. It is determined whether or not it is within the range. For example, in this embodiment, when the cultivation environment setting value MS is set to 25 ° C., and the range of ± 0.5 ° C. is within the cultivation environment setting value MS, the in-house environment information measurement value MI = 24.5 ° C. If it is ˜25.5 ° C., the in-house environment information determination unit 53 determines that the in-house environment information measurement value MI is within the range of the cultivation environment setting value MS.

If it is determined in step S13 that the in-house environment information measurement value MI is within the range of the cultivation environment setting value MS, in the subsequent step S14, the latest outside-environment environment information measurement value MO _n and the immediately previous outside-environment environment information. It is determined whether or not there is a change in the measured value MO _n−1 . In this embodiment, since the temperature outside the house and the amount of solar radiation outside the house are measured as the environmental information measurement value MO outside the house 1, when it is determined that there is no change in the temperature outside the house or the amount of solar radiation outside the house, The process proceeds to step S15, and if it is determined that there is a change, the process proceeds to step S16.

In this embodiment, since only the house temperature is measured as the environment information measurement value MI in the house 1, the latest house environment information measurement value MI _n in step S15 and the immediately previous house environment information measurement value MI are measured. _It is not determined whether _n-1 has changed. However, when measuring the humidity, medium temperature, etc. in addition to the house temperature as the environmental information measurement value MI in the house 1, if it is determined in step S14 that there is no change in the environmental information measurement value MO outside the house, the step In S15, it is determined whether or not there is a change in the in-house environment information measurement value MI.

When it is determined that there is a change in the outside-environment environment information measurement value MO and / or the in-house environment information measurement value MI, in step S16, the latest outside-environment environment information measurement value MO _n and the in-house environment information measurement are measured. A search data list composed of the values MI _n is created and sent to the search unit 54. In the present embodiment, the search data list is composed of the temperature outside the house, the amount of solar radiation outside the house, and the temperature inside the house, and a combination of these latest measured values is sent to the search unit 54 as a search data list.

In the following step S17, a search for the latest House extracellular environment information measured value MO _n and house environment information measured value MI _n environmental information constituting search data list are the same as or approximated by storing data MD _n-x is performed . Environment information storage data _{MD n-x} is a combination of past house extracellular environment information measured value _{MO n-x,} the house in the environment information measured value _{MI n-x} and environmental conditioning apparatus 40 states _{S n-x} . The search unit 54, the search House extracellular environment information identical or approximate and house extracellular environment information measured value MO _n included in the data list measurements MO _n-x, house environment information measured value MI _n and house the environmental information measurement by sequentially searching MI _n-x, acquires environment information storage data MD _n-x to search data list the same or similar.

For example, in the present embodiment, temperature in the house measurements initially included in the search data list, that is, the latest environmental information including temperature in the house measurements that same as or close to the inside temperature measurements house storage data MD _n-x extract To do. Then, from the extracted environmental information accumulated data MD _n-x, further extracts the latest environmental information including house outside temperature measurement that house the same as or close to the outside temperature measurements accumulated data MD _n-x, the last latest by extracting the environmental information storage data MD _n-x containing house outside solar radiation measurement, it is possible to obtain the environmental information storage data MD _n-x which are the same as or close to the search data list. Then, to obtain the state _{S n-x} of the environmental regulation device 40 contained in the obtained environmental information accumulated data _{MD n-x.}

Note that if the environment information storing data MD _n-x is obtained number, environmental information Time House environment information measured value MI is within the range of cultivated configuration value MS exceeds the predetermined time accumulation data MD It acquires the status _{S n-x} of the environmental regulation device 40 according to the _n-x. Here, the predetermined time can be arbitrarily set. For example, the time during which the temperature in the house can be maintained in the range of 25 ° C. ± 0.5 ° C. can be arbitrarily set according to the scale of the house 1 such as 5 minutes, 10 minutes, and 30 minutes.

Upon acquiring the status _{S n-x} of the environmental regulation device 40 in step S17, it followed in step S18, and the state _{S n-x} of the state _{S n} and the environmental regulation device 40 of the latest environmental regulation device 40 are compared. Since in this embodiment the environment adjustment device 40 is ventilated window, state S _n and a state S _n-x of the environment adjustment device 40 is the opening of each ventilation windows.

Then, when the state S _n of the latest environmental adjusting device 40 different from the state S _n-x of past environmental regulation device 40, i.e. in the present embodiment when the degree of opening of the ventilation windows are different, in step S19, past environmental The environmental control information P of the environmental adjustment device 40 is set based on the state S _{nx of the} adjustment device 40. The environmental control information P according to the present embodiment is the opening degree of the ventilation window, but the past environmental information accumulation data MD _n so that the in-house environmental information measurement value MI is maintained within the range of the cultivation environment setting value MS. opening of the obtained optimum ventilation windows from _-x (state S _n-x of the environment adjustment device ₄₀₎ is set in the environment control information setting unit 55 as the environmental control information P, sent to the output unit 56.

Here, in step S19, not only a past state S _n-x of the environmental information storage data MD _n-x is obtained from the optimum environment regulating device 40 only set as an environment control information P. Although the setting is carried out in an environment control information setting unit 55, an optimal environmental regulator 40 status not S _n-x setting only, the state of the environment adjustment device 40 from the state S _n of the latest environmental regulator 40 S _The time required for shifting to nx, the control order of each environment adjustment device 40 when there are a plurality of environment adjustment devices 40, and the like are also set as the environment control information P. In other words, in the present embodiment, not only the environmental control information P for simply shifting the opening of the ventilation window to the optimal opening, but also the opening of the current ventilation window according to the scale of the house 1 and the number of ventilation windows. Information on how long it takes to shift from the degree to the optimum opening is also set as the environmental control information P.

Incidentally, when the a state S _n-x of the latest environmental regulation device 40 states S _n and past environmental regulation device 40 is the same state, environment control information P is not set, the state S _n of the environmental regulation device 40 In a state where is maintained, the process returns to step S12.

  Finally, in step S20, the environmental control information P of the environmental control device 40 sent from the environmental control information setting unit 55 to the output unit 56 is sent from the output unit 56 to the environmental control device 40 according to the agricultural house 1. The Then, the environment adjustment device 40 (the ventilation window according to the present embodiment) is automatically controlled by the environment control information P, whereby the cultivation environment in the house 1 is maintained in the cultivation environment input from the target environment information input unit 57. The Rukoto.

As described above, the latest house outside environment information measured value _MO n of (= current), the MI _n, on the basis of the state _{S n-x} of the environmental regulation device 40 according to the historical environment information storage data _{MD n-x} By adjusting the environmental adjustment device 40, it is possible to realize the optimum and highly accurate environmental control in the house using the past environmental information storage data MD _nx .

Further, since the storage amount of the environmental information storage data MD _nx increases with the passage of time, it is possible to further improve the accuracy of environmental control by continuously using the control system according to the present invention.

  The agricultural house environment control system 10 according to the embodiment of the present invention exemplified above and the environment control method using the same should not be construed as substantially limiting the technical idea of the present invention.

In the environment control method by the agricultural house environment control system 10 of the above embodiment, the outside sensor 20 is constituted by a temperature sensor and a solar radiation amount sensor, the inside sensor 30 is constituted by a temperature sensor, and the environment adjusting device 40 is ventilated. Although the window is used, for example, the outside sensor 20 may be constituted only by a temperature sensor, or a humidity sensor, a wind direction sensor, a wind speed sensor, a rainfall sensor, a CO ₂ sensor, an atmospheric pressure sensor in addition to a temperature sensor and a solar radiation sensor. Or a plurality of sensors. The in-house sensor 30 is not only a temperature sensor but also a plurality of sensors such as a humidity sensor, a solar radiation amount sensor, a medium temperature sensor, a plant body temperature sensor, an irrigation temperature sensor, a soil moisture sensor, a CO ₂ sensor, and an irrigation flow rate sensor. You may comprise. By using a plurality of sensors in combination with the sensor 20 outside the house and the sensor 30 inside the house, all environmental information can be obtained, and more accurate environmental control can be realized.

The environmental control device 40 is not only a ventilation window, but also a combination of a heat insulating curtain, a blackout curtain, a heater, a CO ₂ generator, a irrigation device, a heat pump, a circulation fan, a ventilation fan, a fine fog device, a dehumidifying device, and an electric light. By controlling the environment in the house, the cultivation environment in the house can be controlled optimally and with high accuracy. The present invention can be carried out without departing from the gist, with appropriate improvements, changes, or additions based on the inventive ideas and ideas of those skilled in the art.

1: Agricultural house 10: Agricultural house environmental control system 20: Outside sensor 30: In-house sensor 40: Environmental control device 50: Environmental control device 51: Input unit 52: Storage unit 53: Environmental information determination unit 54: Search part 55: Environmental control information setting part 56: Output part 57: Target environment information input part MO: Environmental information measurement value outside the house MI: Environmental information measurement value inside the house MD: Environmental information accumulation data MS: Cultivation environment setting value P: Environmental control information S: Status of environmental control device

Claims (5)

A control system that optimally automatically controls the cultivation environment inside the agricultural house based on environmental information inside the agricultural house,
One or more sensors outside the house for measuring environmental information outside the house;
One or more in-house sensors for measuring environmental information in the house;
An environmental control device for adjusting the cultivation environment in the house;
An environment control device for controlling the environment control device,
The environmental control device receives at least the outside environmental information measurement value measured by the outside sensor, the in-house environment information measurement value measured by the in-house sensor, and the state of the environmental adjustment device. An input section;
A storage unit for storing the environmental information measurement value outside the house for each predetermined time, the environmental information measurement value inside the house, and the state of the environmental control device in time series;
Compare the preset cultivation environment setting value in the house with the environmental information measurement value in the house from the input unit, and whether the environmental information measurement value in the house is within the range of the cultivation environment setting value When the environmental information measurement value in the house is within the range of the cultivation environment setting value, the latest environmental information measurement value outside the house and the environmental information measurement value in the house, and the environmental information outside the house immediately before An environmental information determination unit for determining whether there is a change in the measurement value and the environmental information measurement value in the house;
When there is a change in the latest measured value of environmental information outside the house and the measured value of environmental information in the house, and the measured value of environmental information outside the house and the measured value of environmental information in the house immediately before, the latest information on the environmental information outside the house A search unit that searches the storage unit for the past environmental information measurement value outside the house that is the same as or approximates the measurement value and the environmental information measurement value in the house, the environmental information measurement value in the house, and the state of the environmental control device;
When the past state of the environmental control device searched in the search unit is compared with the latest state of the environmental control device, and the latest state of the environmental control device is different from the past state of the environmental control device An environmental control information setting unit for setting environmental control information of the environmental control device;
An environmental control system in an agricultural house, comprising: an output unit that sends the environmental control information set by the environmental information setting unit to the environmental control device. _2. The agricultural house interior according to claim 1, wherein the sensor outside the house is selected from a temperature sensor, a humidity sensor, a solar radiation sensor, a wind direction sensor, a wind speed sensor, a rainfall sensor, a CO ₂ sensor, and an atmospheric pressure sensor. Environmental control system. The sensor in the house is selected from a temperature sensor, a humidity sensor, a solar radiation amount sensor, a medium temperature sensor, a plant body temperature sensor, an irrigation temperature sensor, a soil moisture sensor, a CO ₂ sensor, and an irrigation flow rate sensor. The environmental control system for an agricultural house according to claim 1 or 2. The environmental control device is selected from a ventilation window, a heat-insulating curtain, a light-shielding curtain, a heater, a CO ₂ generator, a watering device, a heat pump, a circulation fan, a ventilation fan, a fine fog device, a dehumidifying device, and electric lighting. The environmental control system for an agricultural house according to any one of claims 1 to 3. A control method for optimally automatically controlling the cultivation environment inside the agricultural house based on the environmental information inside the agricultural house,
A cultivation environment setting value input step for inputting a cultivation environment setting value in the house;
An information acquisition step of acquiring the environmental information measurement value outside the house and the state of the environmental control device;
In-house environment determination step for determining whether or not the in-house environment information measurement value is within the range of the cultivation environment setting value;
When the house environment information measurement value is within the range of the cultivation environment setting value, whether or not there is a change in the latest house outside environment information measurement value and the previous house outside environment information measurement value A judgment step for judging environmental information outside the house;
When it is determined that there is a change in the outside-environment environment information determination step, a search data list creation step for creating a search data list based on the latest outside-environment environment information measurement value;
A search step for searching for environmental information storage data that is the same as or similar to the search data list;
An environmental control device determination step for determining whether or not the past state of the environmental control device searched in the search step is different from the latest state of the environmental control device;
An environmental control information setting step for setting environmental control information of the environmental control device based on a past state of the environmental control device, if determined to be different in the environmental control device determination step;
And an output step of sending the environmental control information to the environmental control device.

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