Greenhouse environment regulation method, system, electronic device and storage medium

Abstract

The application provides a greenhouse environment regulation method and system, electronic equipment and storage medium, and belongs to the technical field of agricultural automatic control. The method comprises the following steps: acquiring indoor temperature of a greenhouse at a first time and target temperature at the first time; the target temperature at the first time is determined based on a crop type planted in the greenhouse, a latitude where the greenhouse is located, a time period to which the first time belongs, and average outdoor temperature of a target time period before the first time; based on a comparison result of the indoor temperature at the first time and the target temperature at the first time, each execution device of the greenhouse is controlled to act in a multi-level sequential rolling regulation mode, and the multi-level sequential rolling regulation mode is used for rolling regulation of temperature and humidity balance in the greenhouse. The application can greatly reduce energy consumption of the greenhouse, and meanwhile, realizes fine greenhouse environment automatic regulation mode, and can provide a high-quality growth environment for greenhouse crops.

Description

Technical Field

[0001] This invention relates to the field of automatic control technology in facility agriculture, and in particular to a method, system, electronic device and storage medium for greenhouse environment control. Background Technology

[0002] As a high-end technology direction for the future of facility agriculture in my country, multi-span glass greenhouses have seen a certain improvement in their intelligence level in recent years with the vigorous development of automatic control technology in facility agriculture.

[0003] However, while greenhouse structures are being introduced or created, scientific and efficient automated management methods have not been developed to match them. 95% of multi-span glass greenhouses still rely on manual control of the greenhouse environment based on the experience of managers, resulting in extensive management that cannot guarantee a high-quality growing environment for crops. Even in the few multi-span glass greenhouses that have adopted automated control systems, these typically only control individual actuator thresholds and cannot differentiate between daytime and nighttime energy consumption needs, leading to persistently high greenhouse energy consumption, which is inconsistent with the concept of sustainable development.

[0004] Therefore, how to achieve more refined greenhouse environment control has become a technical problem that the industry urgently needs to solve. Summary of the Invention

[0005] This invention provides a greenhouse environment control method, system, electronic device, and storage medium to achieve a more refined greenhouse environment control approach.

[0006] This invention provides a method for controlling greenhouse environment, comprising:

[0007] The indoor temperature of the greenhouse at a first moment and the target temperature at the first moment are obtained; the target temperature at the first moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment.

[0008] Based on the comparison between the indoor temperature at the first moment and the target temperature at the first moment, the actions of each execution device in the greenhouse are controlled in a multi-level sequential rolling control method, which is used to continuously adjust the temperature and humidity balance in the greenhouse.

[0009] According to a greenhouse environment control method provided by the present invention, the various implementing devices include skylight devices, spraying devices, shading devices, and wet curtain water pump devices; the method of controlling the operation of each implementing device of the greenhouse in a multi-level sequential rolling control manner based on the comparison result of the indoor temperature at the first moment and the target temperature at the first moment includes:

[0010] If the indoor temperature at the first moment is not less than the target temperature at the first moment, and the indoor temperature at the first moment is not less than the first preset temperature, then the skylight device is activated.

[0011] The spraying device is activated when the indoor temperature at the second moment is not less than the first high temperature threshold and the indoor humidity at the second moment is not greater than the preset humidity; the first high temperature threshold is determined based on the sum of the target temperature at the second moment and the first temperature deviation value.

[0012] If the indoor temperature at the third moment is not less than the second high temperature threshold and the total outdoor solar radiation at the third moment is not greater than the preset solar radiation value, the shading device is activated; the second high temperature threshold is determined based on the sum of the target temperature and the second temperature deviation value at the third moment.

[0013] If the indoor temperature at the fourth moment is determined to be no less than the third high temperature threshold and no less than the second preset temperature, the evaporative cooling pad pump is started until the indoor temperature is determined to be decreasing. Then, the evaporative cooling pad pump, the shading device, the misting device, and the skylight device are turned off in sequence. The third high temperature threshold is determined based on the sum of the target temperature and the third temperature deviation value at the fourth moment. The third temperature deviation value is greater than the second temperature deviation value, and the second temperature deviation value is greater than the first temperature deviation value.

[0014] According to a greenhouse environment control method provided by the present invention, the step of sequentially shutting down the evaporative cooling pad pump, the shading device, the misting device, and the skylight device when it is determined that the indoor temperature is decreasing includes:

[0015] If the indoor temperature at the fifth moment is determined to be less than the fourth high temperature threshold, the wet curtain water pump equipment is turned off; the fourth high temperature threshold is determined based on the sum of the target temperature at the fifth moment and the deviation value of the third temperature.

[0016] If the indoor temperature at the sixth moment is determined to be less than the fifth high temperature threshold, the shading device shall be turned off; the fifth high temperature threshold shall be determined based on the sum of the deviation between the target temperature at the sixth moment and the second temperature.

[0017] If the indoor temperature at the seventh moment is determined to be less than the sixth high temperature threshold, the spraying equipment is turned off; the sixth high temperature threshold is determined based on the sum of the deviation between the target temperature at the seventh moment and the first temperature.

[0018] If the indoor temperature at the eighth moment is determined to be lower than the target temperature at the eighth moment, the skylight device shall be closed.

[0019] According to a greenhouse environment control method provided by the present invention, the method further includes:

[0020] If the indoor temperature at the second moment is determined to be lower than the target temperature at the second moment, the skylight device shall be closed.

[0021] or,

[0022] If the indoor temperature at the third moment is less than the seventh high temperature threshold or the indoor humidity at the third moment is greater than the preset humidity, the spraying device shall be turned off; the seventh high temperature threshold shall be determined based on the sum of the deviation values ​​between the target temperature and the first temperature at the third moment.

[0023] or,

[0024] If the indoor temperature at the fourth time point is determined to be less than the eighth high temperature threshold, the shading device is turned off; the eighth high temperature threshold is determined based on the sum of the deviation between the target temperature at the fourth time point and the second temperature value.

[0025] According to a greenhouse environment control method provided by the present invention, the various implementing devices further include external insulation equipment and heat pump equipment. After determining that the skylight equipment is in a closed state, the method further includes:

[0026] If the indoor temperature at the ninth moment is determined to be less than the first low temperature threshold and the total outdoor solar radiation at the ninth moment is less than the first critical radiation value, the first external insulation device on the target side of the greenhouse is activated; the first low temperature threshold is determined based on the difference between the target temperature at the ninth moment and the first temperature deviation value.

[0027] If the indoor temperature at the tenth moment is determined to be less than the second low temperature threshold, and the total outdoor solar radiation at the tenth moment is less than the second critical radiation value, the second external insulation device on the opposite side of the target side of the greenhouse is activated; the second low temperature threshold is determined based on the difference between the target temperature at the tenth moment and the second temperature deviation value.

[0028] If the indoor temperature at the eleventh moment is determined to be less than the third low temperature threshold and less than the third preset temperature, the heat pump water pump device is started until the indoor temperature is determined to be rising. Then, the heat pump water pump device and the external insulation device are turned off in sequence. The third low temperature threshold is determined based on the difference between the target temperature at the eleventh moment and the third temperature deviation value. The external insulation device includes the first external insulation device and the second external insulation device.

[0029] According to a greenhouse environment control method provided by the present invention, the step of sequentially shutting down the heat pump water pump equipment and the external insulation equipment when it is determined that the indoor temperature is trending upward includes:

[0030] If the indoor temperature at the twelfth moment is determined to be not less than the fourth low temperature threshold, the heat pump water pump equipment is turned off; the fourth low temperature threshold is determined based on the difference between the target temperature at the twelfth moment and the third temperature deviation value.

[0031] If the indoor temperature at the thirteenth moment is not less than the fifth low temperature threshold, and the total outdoor solar radiation at the thirteenth moment is not less than the first critical radiation value and not less than the second critical radiation value, the external insulation equipment shall be turned off; the fifth low temperature threshold is determined based on the difference between the target temperature at the thirteenth moment and the first temperature deviation value.

[0032] According to a greenhouse environment control method provided by the present invention, the method further includes:

[0033] If it is determined that the current time is within the first preset time range, the first external insulation device shall be turned off;

[0034] or,

[0035] If it is determined that the current time falls within the second preset time range, the second external insulation device shall be turned off;

[0036] The first preset time range is earlier than the second preset time range.

[0037] The present invention also provides a greenhouse environment control system, comprising:

[0038] The acquisition module is used to acquire the indoor temperature of the greenhouse at a first moment and the target temperature at the first moment; the target temperature at the first moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment.

[0039] The control module is used to control the actions of each execution device in the greenhouse according to a multi-level sequential rolling control method based on the comparison result between the indoor temperature at the first moment and the target temperature at the first moment. The multi-level sequential rolling control method is used to continuously adjust the temperature and humidity balance in the greenhouse.

[0040] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the greenhouse environment control method as described above.

[0041] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the greenhouse environment control method as described above.

[0042] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the greenhouse environment control method as described above.

[0043] The greenhouse environment control method, system, electronic equipment, and storage medium provided by this invention, by fully considering the energy consumption requirements of the glass greenhouse during the day and night, the type of greenhouse crop, and the special geographical location of the greenhouse, determine the target temperature that the greenhouse needs to be adjusted at different times, and then obtain the indoor temperature of the greenhouse at the moment the system starts to run. Based on the comparison between the monitored indoor temperature and its corresponding target temperature, and using the comparison result as the starting point, the actions of each execution device in the greenhouse are cyclically controlled in a multi-level sequential rolling control mode to continuously adjust the temperature and humidity balance in the greenhouse. This can greatly reduce greenhouse energy consumption, and at the same time realize a precise automated control mode for the greenhouse environment, which can provide a high-quality growth environment for greenhouse crops. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is a schematic flowchart of the greenhouse environment control method provided by the present invention;

[0046] Figure 2 This is one of the schematic diagrams of the logic control flow of the greenhouse environment regulation method provided by the present invention;

[0047] Figure 3 This is the second schematic diagram of the logic control flow of the greenhouse environment regulation method provided by the present invention;

[0048] Figure 4 This is the third schematic diagram of the logic control flow of the greenhouse environment regulation method provided by the present invention;

[0049] Figure 5 This is the fourth schematic diagram of the logic control flow of the greenhouse environment regulation method provided by the present invention;

[0050] Figure 6 This is a schematic diagram of the greenhouse environment control system provided by the present invention;

[0051] Figure 7 This is a schematic diagram of the physical structure of the electronic device provided by the present invention. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0053] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] The following is combined with Figures 1-7 The present invention describes a greenhouse environment control method, system, electronic device, and storage medium.

[0055] Figure 1 This is a schematic flowchart of the greenhouse environment control method provided by the present invention, as shown below. Figure 1 As shown, it includes steps 110 and 120.

[0056] Step 110: Obtain the indoor temperature of the greenhouse at the first moment and the target temperature at the first moment; the target temperature at the first moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment.

[0057] Step 120: Based on the comparison between the indoor temperature at the first moment and the target temperature at the first moment, control the actions of each execution device in the greenhouse according to the multi-level sequential rolling control method. The multi-level sequential rolling control method is used to continuously adjust the temperature and humidity balance in the greenhouse.

[0058] Specifically, the first moment described in the embodiments of the present invention refers to the moment when the control system initially starts operating and begins to control, or the moment when each round of control begins after the control system has started operating.

[0059] The target time period described in the embodiments of the present invention refers to a specific time period before the first moment, which can be a time period in days, such as the day before the first moment.

[0060] The average outdoor temperature described in this embodiment of the invention can be obtained by averaging the outdoor temperatures at various times within the target time period. For example, if the target time is the day before the day in which the first time occurs, then the average outdoor temperature is the average outdoor temperature of the day before the day in which the target time is.

[0061] The target temperature described in this embodiment of the invention refers to the temperature parameter that needs to be adjusted for different time periods in order to distinguish the energy consumption requirements of the greenhouse environment during the day and night. Specifically, it can be determined according to the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment.

[0062] The execution equipment described in the embodiments of the present invention refers to various functional facilities and equipment installed in the greenhouse, which may include skylight equipment, spray equipment, shading equipment, heating / cooling air conditioning equipment, external insulation equipment, etc.

[0063] The multi-level sequential rolling control method described in this embodiment of the invention includes multiple levels of sequential control methods. Each level of sequential control method is triggered based on the indoor temperature and the corresponding target temperature at the time of its invocation, as well as other relevant greenhouse environmental parameters. Through each level of sequential control method, the actions of the execution equipment at each level are adjusted sequentially to regulate the temperature and humidity balance in the greenhouse.

[0064] It should be noted that, in the embodiments of the present invention, each level in the multi-level sequential rolling control method is a closed loop, and each closed loop is based on the collected indoor temperature T. in With target temperature T tar The judgment is used as the starting point, and there is a certain time for it to take effect, so as to ensure the execution of the equipment and its effectiveness, and save energy.

[0065] Furthermore, in an embodiment of the present invention, in step 110, the temperature and humidity inside the greenhouse are collected in real time by temperature and humidity sensors pre-installed inside the greenhouse to obtain the indoor temperature of the greenhouse at the first moment and the target temperature at the first moment.

[0066] In the embodiments of the present invention, the target temperature is climate-related, differing between winter and summer, and between day and night, and is dynamically changing within 24 hours. This conforms to climate patterns and crop growth and development patterns, and can effectively save energy consumption.

[0067] More specifically, in embodiments of the present invention, the 24 hours of a day are divided into time periods, and the target temperature at different times of day and night is calculated. Specifically, the target temperature T at each time point can be calculated using the following formula. tar :

[0068] T tar =K×Int(T y_avg -8, when 0 ≤ h < 5 or h > 23;

[0069] T tar =K×Int(T y_avg )-|h-9|×2, when 5≤h<10;

[0070] T tar =K×Int(T y_avg )+|h-9|×2, when 10≤h<13;

[0071] T tar =K×Int(T y_avg )+6, when 13≤h<15;

[0072] T tar =K×Int(T y_avg -6, when 15≤h≤23;

[0073] in,

[0074] In the formula, h represents time; T y_avg T represents the average outdoor temperature of the day preceding the current time (h); y_out (t) represents the outdoor temperature distribution function of the previous 24 hours of the day at time h; K represents the target temperature correction coefficient related to the type of crop grown in the greenhouse and the latitude of the greenhouse, which can be obtained by statistical analysis of historical data of relevant parameters.

[0075] Furthermore, in an embodiment of the present invention, in step 120, the indoor temperature at the first moment is compared with the target temperature at the first moment, and the comparison result is used as the starting trigger condition. According to the multi-level sequential rolling control method, at each control node, the indoor temperature at the current moment and the corresponding target temperature, as well as other relevant greenhouse environmental parameters, are obtained, triggering the program of sequential rolling control at each level, and controlling the actions of each execution device in the greenhouse in turn, thereby rolling and adjusting the temperature and humidity balance in the greenhouse.

[0076] The greenhouse environment control method of this invention fully considers the energy consumption demand of the glass greenhouse during the day and night, the type of greenhouse crop, and the special geographical location of the greenhouse to determine the target temperature that the greenhouse needs to be adjusted at different times. Then, it obtains the indoor temperature of the greenhouse at the time when the system starts to run, compares the monitored indoor temperature with its corresponding target temperature, and uses the comparison result as the starting point to cyclically control the actions of each execution device in the greenhouse in a multi-level sequential rolling control manner to adjust the temperature and humidity balance in the greenhouse. This can greatly reduce greenhouse energy consumption and realize a precise automated control method for the greenhouse environment, which can provide a high-quality growth environment for greenhouse crops.

[0077] Based on the above embodiments, as an optional embodiment, the various execution devices include skylight devices, spraying devices, shading devices, and wet curtain pump devices; in step 120, based on the comparison result between the indoor temperature at the first moment and the target temperature at the first moment, the actions of each execution device in the greenhouse are controlled according to a multi-level sequential rolling control method, including:

[0078] If the indoor temperature at the first moment is not lower than the target temperature at the first moment, and the indoor temperature at the first moment is not lower than the first preset temperature, then activate the skylight device.

[0079] The spraying equipment is activated when the indoor temperature at the second moment is not less than the first high temperature threshold and the indoor humidity at the second moment is not greater than the preset humidity; the first high temperature threshold is determined by summing the deviation between the target temperature at the second moment and the first temperature.

[0080] If the indoor temperature at the third moment is not less than the second high temperature threshold and the total outdoor solar radiation at the third moment is not greater than the preset solar radiation value, the shading device is activated; the second high temperature threshold is determined by summing the deviation between the target temperature at the third moment and the second temperature.

[0081] If the indoor temperature at the fourth moment is determined to be no less than the third high temperature threshold and no less than the second preset temperature, the evaporative cooling pad pump is started until the indoor temperature is determined to be decreasing. Then, the evaporative cooling pad pump, shading device, misting device, and skylight device are turned off in sequence. The third high temperature threshold is determined by summing the deviations between the target temperature at the fourth moment and the third temperature. The third temperature deviation is greater than the second temperature deviation, and the second temperature deviation is greater than the first temperature deviation.

[0082] Specifically, the first preset temperature described in the embodiments of the present invention refers to the minimum temperature preset for opening the skylight, which can be expressed as T. tc The unit is ℃.

[0083] The preset humidity described in this embodiment of the invention refers to the maximum humidity preset for opening the spray, which can be expressed as RH. pw , expressed in the form of "%".

[0084] The preset solar radiation value described in this embodiment of the invention refers to the minimum solar radiation value for pre-set coverage and shading, which can be expressed as R. zy The unit is W·m -2 .

[0085] The second preset temperature described in this embodiment of the invention refers to the lowest temperature for pre-set active cooling, which can be expressed as T. fjd The unit is ℃.

[0086] In an embodiment of the present invention, the first temperature deviation value, the second temperature deviation value, and the third temperature deviation value represent different degrees of temperature change. The third temperature deviation value is greater than the second temperature deviation value, and the second temperature deviation value is greater than the first temperature deviation value. The first temperature deviation value can be expressed as Δt, and the second temperature deviation value and the third temperature deviation value can be taken as 1.5Δt and 2Δt, respectively.

[0087] It is understandable that the second moment is the moment after the first moment, the third moment is the moment after the second moment, and the fourth moment is the moment after the third moment.

[0088] In an embodiment of the present invention, the first high-temperature threshold is determined by the target temperature T at the second time point. tar Determined by summing with the first temperature deviation value Δt, it can be expressed as T. tar +Δt; The second high-temperature threshold is the target temperature T at the third moment. tar Determined by summing with the second temperature deviation value 1.5Δt, it can be expressed as T. tar +1.5Δt; the third high-temperature threshold is the target temperature T at the fourth time. tar The value determined by summing the third temperature deviation value 2Δt can be expressed as T. tar +2Δt.

[0089] It should be noted that, in the embodiments of the present invention, the target temperature at each moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the moment belongs, and the average outdoor temperature of the previous target time period, according to the aforementioned T. tar It is calculated using the formula.

[0090] It is understandable that the third high temperature threshold is greater than the second high temperature threshold, and the second high temperature threshold is greater than the first high temperature threshold.

[0091] In an embodiment of the present invention, the evaporative cooling pad pump equipment used is equipped with a fan and belongs to an air conditioning cooling system for cooling the evaporative cooling pad.

[0092] It should be noted that, in the embodiments of the present invention, the execution of each control action of the actuator is distinguished by a process flag bit. For example, a process flag bit of 1 is used to enter a multi-level sequential rolling control mode; a process flag bit of 1 is used to start the sunroof device; a process flag bit of 2 is used to start the spray device; a process flag bit of 3 is used to start the sunshade device; and a process flag bit of 4 is used to start the wet curtain water pump device. Each action needs to be performed as an integer multiple of the action period M to ensure sufficient effect and minimize energy consumption.

[0093] In the embodiments of the present invention, the actions of each execution device are distinguished by a process flag bit. Only one execution device is allowed to act at a time, and each action has an operating cycle. At the same time, as the temperature changes, each action is executed in a rolling order according to the increasing or decreasing process, and cross-process execution is not allowed. This helps to fully reduce energy consumption.

[0094] Figure 2 This is one of the schematic diagrams of the logic control flow of the greenhouse environment regulation method provided by the present invention, such as... Figure 2 As shown, in an embodiment of the present invention, the indoor temperature T at the first moment is determined. in Not less than the target temperature T at the first moment tar And the indoor temperature T at the first moment in Not less than the first preset temperature T tc That is, in T in ≥T tar And T in ≥T tc If the temperature inside the greenhouse is too high and has exceeded the minimum temperature set for opening the skylight, the skylight equipment will be automatically activated to cool the greenhouse. After its cycle, the current indoor temperature and the corresponding target temperature will be obtained, thus determining the indoor temperature and the corresponding target temperature at the second moment.

[0095] Furthermore, the indoor temperature T at the second moment was determined. in Not less than the first high temperature threshold T tar +Δt, and the indoor humidity RH at the second moment in Not greater than the preset humidity (RH) pw That is, when T is determined at this time in ≥T tar +Δt, and RH in ≤RH pwIf the indoor temperature remains too high and has not been reduced, and the indoor humidity is also below the preset maximum humidity for starting the misting system, then the misting equipment will automatically start to perform high-pressure misting. After its operating cycle, the current indoor temperature and the corresponding target temperature will be obtained, thus determining the indoor temperature and its corresponding target temperature at the third moment.

[0096] Furthermore, the indoor temperature T at the third moment was determined. in Not less than the second high temperature threshold T tar +1.5Δt, and the total outdoor solar radiation R at the third moment out Not greater than the preset solar radiation value R zy That is, when T is determined at this time in ≥T tar +1.5Δt, and R out ≥R zy If the temperature inside the greenhouse is still high and the total outdoor solar radiation has exceeded the minimum solar radiation value set for shading, then the shading equipment will be automatically activated to shade the greenhouse. After its cycle, the indoor temperature and its corresponding target temperature at the fourth moment will be obtained.

[0097] Furthermore, the indoor temperature T at the fourth time point was determined. in Not less than the third high temperature threshold T tar +2Δt and not less than the second preset temperature T fjd That is, when T is determined at this time in ≥T tar +2Δt, and T in ≥T fjd If the temperature inside the greenhouse is still too high and has exceeded the preset minimum temperature for active cooling, the wet curtain water pump equipment will be activated to forcefully cool the greenhouse until the indoor temperature is confirmed to be decreasing. Then, the wet curtain water pump equipment, shading equipment, misting equipment, and skylight equipment will be turned off in sequence.

[0098] The method of this invention fully considers the energy consumption of the glass greenhouse during the day and night, distinguishes the changes in the outside temperature at different times to determine the target temperature that the greenhouse needs to be adjusted at different times, and controls the actions of various execution equipment in the greenhouse in a multi-level sequential rolling control manner based on the real-time monitoring results of indoor temperature and humidity and outdoor solar radiation. The cooling intensity is gradually increased, so as to achieve fine adjustment of the temperature and humidity balance in the greenhouse under the scenario of continuous increase in greenhouse temperature. This is conducive to effectively reducing greenhouse energy consumption and ensuring a high-quality growth environment for greenhouse crops.

[0099] Based on the above embodiments, as an optional embodiment, when it is determined that the indoor temperature is trending downwards, the evaporative cooling pad pump, shading device, misting device, and skylight device are sequentially shut down, including:

[0100] If the indoor temperature at the fifth moment is determined to be lower than the fourth high temperature threshold, the evaporative cooling pad pump equipment is turned off; the fourth high temperature threshold is determined by summing the deviations between the target temperature at the fifth moment and the third temperature.

[0101] If the indoor temperature at the sixth moment is determined to be lower than the fifth high temperature threshold, the shading device shall be turned off; the fifth high temperature threshold shall be determined by summing the deviations between the target temperature at the sixth moment and the second temperature.

[0102] If the indoor temperature at the seventh moment is determined to be less than the sixth high temperature threshold, the spray equipment is turned off; the sixth high temperature threshold is determined by summing the deviations between the target temperature at the seventh moment and the first temperature.

[0103] If the indoor temperature at the eighth time point is determined to be lower than the target temperature at the eighth time point, close the skylight device.

[0104] Specifically, in the embodiments of the present invention, the fifth time is the time after the fourth time, the sixth time is the time after the fifth time, the seventh time is the time after the sixth time, and the eighth time is the time after the seventh time.

[0105] In an embodiment of the present invention, the fourth high-temperature threshold is determined by the target temperature T at the fifth time point. tar The value determined by summing the third temperature deviation value 2Δt can be expressed as T. tar +2Δt; The fifth high-temperature threshold is the target temperature T at the sixth moment. tar Determined by summing with the second temperature deviation value 1.5Δt, it can be expressed as T. tar +1.5Δt; the sixth high-temperature threshold is the target temperature T at the seventh time. tar Determined by summing with the first temperature deviation value Δt, it can be expressed as T. tar +Δt.

[0106] Continue to refer to Figure 2 ,like Figure 2 As shown, in an embodiment of the present invention, when it is determined that the indoor temperature is trending downward, initially, the indoor temperature T at the fifth time point is determined... in Less than the fourth high temperature threshold T tar +2Δt, that is, when T is determined at this time in <T tar At a value of +2Δt, it indicates that the indoor temperature of the greenhouse has begun to decrease. At this point, the evaporative cooling pump will be shut down to reduce the cooling effect and save energy. Then, the indoor temperature T at the sixth moment will be determined. in Less than the fifth high temperature threshold T tar +1.5Δt, that is, when T is determined at this time in <Ttar When the temperature is +1.5Δt, it indicates that the indoor temperature of the greenhouse has been further reduced. At this point, the shading equipment will be turned off to further reduce the cooling effect.

[0107] Afterwards, the indoor temperature T at the seventh moment was determined. in Less than the sixth high temperature threshold T tar +Δt, that is, when T is determined at this time in <T tar In the case of +Δt, it indicates that the greenhouse indoor temperature has further decreased, at which point the misting equipment will be further shut off. Continue to monitor the indoor temperature in real time, and determine the indoor temperature T at the eighth moment. in The target temperature T at time eight is less than tar In such cases, the sunroof system will be further closed.

[0108] The method of this invention, by gradually shutting down various execution devices when the temperature inside the greenhouse is detected to be decreasing, gradually reduces the cooling effect inside the greenhouse, thereby maximizing energy savings and further saving greenhouse energy consumption and improving the efficiency of energy conservation and emission reduction.

[0109] Based on the above embodiments, as an optional embodiment, the method further includes:

[0110] If the indoor temperature at the second moment is determined to be lower than the target temperature at the second moment, close the skylight device;

[0111] or,

[0112] If the indoor temperature at the third moment is less than the seventh high temperature threshold or the indoor humidity at the third moment is greater than the preset humidity, the spraying equipment is turned off; the seventh high temperature threshold is determined based on the sum of the deviations between the target temperature at the third moment and the first temperature.

[0113] or,

[0114] If the indoor temperature at the fourth moment is determined to be less than the eighth high temperature threshold, the shading device is turned off; the eighth high temperature threshold is determined based on the sum of the deviations between the target temperature at the fourth moment and the second temperature.

[0115] Continue to refer to Figure 2 Specifically, in an embodiment of the present invention, if the sunroof device is activated, and the indoor temperature T at the second moment is determined... in Less than the target temperature T at the second moment tar When T is determined at this time in <T tar If the temperature is too low, the skylight will be closed to reduce heat loss.

[0116] In an embodiment of the present invention, if after starting the spraying equipment, if the indoor temperature at the third time is determined to be less than the seventh high temperature threshold or the indoor humidity at the third time is determined to be greater than the preset humidity, that is, if the indoor temperature at the third time is determined to be less than the seventh high temperature threshold or the indoor humidity at the third time is ... then the indoor temperature at the third time is determined to be less than the seventh high temperature threshold or the indoor humidity at the third time is determined to be greater than the preset humidity at the third time. in <T tar +Δt, or RH in >RH pw If the indoor temperature decreases, the spray equipment will be turned off. Afterwards, if the indoor temperature is detected to be lower than the target temperature at that time, i.e., T... in <T tar If so, the sunroof system will be further closed.

[0117] In an embodiment of the present invention, if after activating the shading device, it is detected that the indoor temperature at the fourth time point is less than the eighth high-temperature threshold, i.e., at this time T in <T tar +1.5Δt indicates that the indoor temperature has decreased, so the shading device will be turned off. Afterwards, if the indoor temperature at the next moment is detected to be lower than its corresponding high-temperature threshold, then the shading device will be turned off. in <T tar In the case of +Δt, the spray equipment will be further shut off. Subsequently, if it is detected that the indoor temperature at the next moment is lower than the target temperature at the corresponding moment, i.e., at this time T... in <T tar If so, the sunroof system will be further closed.

[0118] The method of this invention monitors the indoor temperature and the corresponding target temperature at various times. After turning on the relevant cooling devices, if the indoor temperature shows a decreasing trend, it can intelligently and smoothly adjust the control according to the corresponding level and gradually shut down each device, greatly improving the precision of greenhouse environment control.

[0119] Based on the above embodiments, as an optional embodiment, each execution device further includes an external insulation device and a heat pump water pump device. After determining that the sunroof device is in a closed state, the method further includes:

[0120] If the indoor temperature at the ninth moment is determined to be less than the first low temperature threshold and the total outdoor solar radiation at the ninth moment is less than the first critical radiation value, the first external insulation device on the target side of the greenhouse is activated; the first low temperature threshold is determined based on the difference between the target temperature at the ninth moment and the first temperature deviation value.

[0121] If the indoor temperature at the tenth moment is less than the second low temperature threshold and the total outdoor solar radiation at the tenth moment is less than the second critical radiation value, the second external insulation device on the opposite side of the target side of the greenhouse is activated; the second low temperature threshold is determined based on the difference between the target temperature at the tenth moment and the second temperature deviation value.

[0122] If the indoor temperature at the eleventh moment is determined to be lower than the third low temperature threshold and the indoor temperature at the eleventh moment is lower than the third preset temperature, the heat pump water pump equipment is started until the indoor temperature is determined to be rising. Then the heat pump water pump equipment and the external insulation equipment are turned off in sequence. The third low temperature threshold is determined based on the difference between the target temperature at the eleventh moment and the third temperature deviation value. The external insulation equipment includes the first external insulation equipment and the second external insulation equipment.

[0123] Specifically, the external insulation equipment described in the embodiments of the present invention refers to the insulation facilities and equipment installed on the outer surface of the glass greenhouse.

[0124] The target side described in the embodiments of the present invention refers to one side of the glass greenhouse set in a specific direction, and the opposite side is the other side of the glass greenhouse set in a specific direction. For example, along the east-west direction, a set of external insulation equipment can be arranged on the east and west sides of the glass greenhouse. The target side can be the east side, and the opposite side of the target side is the west side.

[0125] The first critical radiation value described in this embodiment of the invention refers to the critical radiation value of the external insulation on the target side of the covered glass greenhouse, which can be expressed as R. e The unit is W·m -2 .

[0126] The second critical radiation value described in this embodiment of the invention refers to the critical radiation value of the external insulation on the opposite side of the target side of the covered glass greenhouse, which can be expressed as R. w The unit is W·m -2 .

[0127] The third preset temperature described in this embodiment of the invention refers to the highest temperature of the pre-set active heating action, which can be expressed as T. fju The unit is ℃.

[0128] It is understandable that the ninth moment is the moment after the eighth moment, the tenth moment is the moment after the ninth moment, and the eleventh moment is the moment after the tenth moment.

[0129] In an embodiment of the present invention, the first low-temperature threshold is the target temperature T at the ninth time point. tar Determined by subtracting the first temperature deviation value Δt, it can be expressed as T. tar -Δt; The second low-temperature threshold is the target temperature T at the tenth time. tar Determined by subtracting the second temperature deviation value of 1.5Δt, it can be expressed as T. tar -1.5Δt; the third low-temperature threshold is the target temperature T at time eleven. tar The value determined by subtracting the third temperature deviation value 2Δt can be expressed as T.tar -2Δt.

[0130] It is understandable that the third low temperature threshold is less than the second low temperature threshold, and the second low temperature threshold is less than the first low temperature threshold.

[0131] In an embodiment of the present invention, the heat pump water pump equipment used is equipped with a fan and belongs to an air conditioning heating system for heat pump heating.

[0132] It should be noted that, in the embodiments of the present invention, the execution of each control action of the execution device is distinguished by a process flag bit. For example, if the process flag bit is 5, it is used to start the first external insulation device; if the process flag bit is 6, it is used to start the second external insulation device; if the process flag bit is 7, it is used to start the heat pump water pump device, and so on, to execute each action.

[0133] Continue to refer to Figure 2 ,like Figure 2 As shown, in an embodiment of the present invention, after determining that the skylight device is in a closed state, the indoor temperature T at the ninth moment is detected. in Less than the first low temperature threshold T tar -Δt, and the total outdoor solar radiation R at the ninth moment out Less than the first critical radiation value R e That is, when T is determined at this time in <T tar -Δt, and R out <R e In this case, it indicates that the temperature inside the greenhouse is low and the total outdoor solar radiation is less than the critical radiation value for external insulation on the target side of the glass-covered greenhouse. At this point, the first external insulation device on the target side of the greenhouse will be activated to insulate the target side. After its operating cycle, the indoor temperature and the corresponding target temperature at the next moment will be obtained, thus determining the indoor temperature and its corresponding target temperature at the tenth moment.

[0134] Furthermore, the indoor temperature T at the tenth moment was determined. in Less than the second low temperature threshold T at this time tar -1.5Δt, and the total outdoor solar radiation R at the tenth moment. out Less than the second critical radiation value R w That is, when T is determined at this time in <T tar -1.5Δt, and R out <R wIn this case, it indicates that the indoor temperature continues to decrease, and the total outdoor solar radiation becomes less than the critical radiation value for external insulation on the opposite side of the target side of the covered glass greenhouse. At this point, the second external insulation device on the opposite side of the target side of the greenhouse will be activated to perform insulation on that side. After its operating cycle, the indoor temperature and the corresponding target temperature at the next moment will be obtained, thus determining the indoor temperature and the corresponding target temperature at the eleventh moment.

[0135] Furthermore, the indoor temperature T at time eleven was determined. in Less than the third low temperature threshold T tar -12Δt, and the indoor temperature T at the eleventh moment. in Less than the third preset temperature T fju That is, when T is determined at this time in <T tar -2Δt, and T in <T fju If the temperature inside the greenhouse continues to drop and has fallen below the preset maximum temperature for active heating, the heat pump will be activated to powerfully heat the greenhouse until the indoor temperature is confirmed to be rising. Then, the heat pump and external insulation equipment will be shut down sequentially.

[0136] It should be noted that, in the embodiments of the present invention, due to the independence of the heat pump system, the heat pump control logic is also a control logic independent of the main logic. When the heat pump system is equipped with an insulated water tank, the control method is as follows: Figure 3 As shown, whenever the water temperature T in the tank is determined... sx When the temperature is below 25°C, turn on the heat pump side circulating water pump and start timing. When the timing duration is not less than 3 minutes, turn on the heat pump heating mode to heat the water stored in the water tank until the water temperature in the water tank is confirmed to be not less than 35°C, then turn off the heat pump. Otherwise, jump to the control node of turning on the heat pump side circulating water pump mentioned above. After turning off the heat pump, start timing for turning off the heat pump until the timing duration is confirmed to be not less than 5 minutes, then turn off the heat pump side circulating water pump to complete one round of control.

[0137] The purpose of the above control method is to maintain the water tank temperature within a suitable range. In this way, if the main logic enters the heat pump water pump equipment heating process, it is only necessary to turn on the heat pump water pump connected to the fan surface cooler.

[0138] Additionally, when the heat pump system is not equipped with an insulated water tank and water enters the surface cooler directly, the heat pump control logic exists as a callable subroutine, and the control method is as follows: Figure 4As shown, after entering the heat pump heating process, the circulating water pump is turned on and the timer starts. If the timer duration is not less than 3 minutes, the heat pump heating mode is turned on for heating. After entering the exit heat pump heating process, the heat pump is turned off and the timer starts. If the timer duration is not less than 5 minutes, the circulating water pump on the heat pump side is turned off.

[0139] It should be noted that the entry into and exit from the heat pump heating process can also be determined by the process flag.

[0140] The method of this invention fully considers the energy consumption of the glass greenhouse during the day and night, distinguishes the changes in the outside temperature at different times to determine the target temperature that the greenhouse needs to be adjusted at different times, and controls the actions of various execution equipment in the greenhouse in a multi-level sequential rolling control manner based on the real-time monitoring results of indoor temperature and humidity and outdoor solar radiation. This gradually increases the heating intensity in the greenhouse, and achieves fine adjustment of the temperature and humidity balance in the greenhouse under the scenario of continuous temperature reduction. This is beneficial to effectively reduce greenhouse energy consumption while ensuring the creation of a high-quality growth environment for greenhouse crops.

[0141] Based on the above embodiments, as an optional embodiment, when it is determined that the indoor temperature is trending upward, the heat pump water pump equipment and the external insulation equipment are turned off sequentially, including:

[0142] If the indoor temperature at the twelfth moment is determined to be no less than the fourth low temperature threshold, the heat pump water pump equipment is turned off; the fourth low temperature threshold is determined based on the difference between the target temperature at the twelfth moment and the third temperature deviation value.

[0143] If the indoor temperature at the thirteenth moment is not less than the fifth low temperature threshold, and the total outdoor solar radiation at the thirteenth moment is not less than the first critical radiation value and not less than the second critical radiation value, the external insulation equipment shall be turned off; the fifth low temperature threshold is determined based on the difference between the target temperature at the thirteenth moment and the first temperature deviation value.

[0144] Specifically, in an embodiment of the present invention, the twelfth moment is the moment after the eleventh moment, and the thirteenth moment is the moment after the twelfth moment.

[0145] In an embodiment of the present invention, the fourth low-temperature threshold is the target temperature T at the twelfth time. tar The value determined by subtracting the third temperature deviation value 2Δt can be expressed as T. tar -2Δt; The fifth low-temperature threshold is the target temperature T at the thirteenth moment. tar Determined by summing with the first temperature deviation value Δt, it can be expressed as T. tar -Δt.

[0146] Continue to refer to Figure 2,like Figure 2 As shown, in an embodiment of the present invention, when it is determined that the indoor temperature is trending upward, initially, the indoor temperature T at the twelfth moment is determined... in Not less than the fourth low temperature threshold T tar -2Δt, that is, when T is determined at this time in ≥T tar At the condition of -2Δt, it indicates that the indoor temperature of the greenhouse has begun to rise. At this point, the heat pump water pump equipment will be shut down to reduce heating intensity and save energy. Then, the indoor temperature T at the thirteenth moment will be determined. in Not less than the fifth low temperature threshold T tar -Δt, and the total outdoor solar radiation R at the thirteenth moment out Not less than the first critical radiation value R e And not less than the second critical radiation value R w That is, when T is determined at this time in ≥T tar -Δt, and R out ≥R e R out ≥R w In this case, it indicates that the indoor temperature of the greenhouse has increased further. At this time, the external insulation equipment will be turned off, such as closing the external insulation on the east side and the external insulation on the west side, to further reduce the heating intensity inside the greenhouse.

[0147] At this point, a complete multi-level sequential rolling control cycle has been completed, and the cycle will enter the next cycle. That is, after entering the next moment, the indoor temperature and the corresponding target temperature of the next moment will be used as the starting point, and the various execution devices will be adjusted in a multi-level sequential rolling control manner.

[0148] The method of this invention, when the temperature inside the greenhouse is detected to be rising, gradually shuts down each of the heating devices to gradually reduce the heating intensity inside the greenhouse, thereby maximizing energy savings and further saving greenhouse energy consumption and improving energy conservation and emission reduction efficiency.

[0149] Based on the above embodiments, as an optional embodiment, the method further includes:

[0150] If it is determined that the current time is within the first preset time range, the first external insulation device shall be turned off;

[0151] or,

[0152] If it is determined that the current time falls within the second preset time range, the second external insulation device shall be turned off;

[0153] The first preset time range is earlier than the second preset time range.

[0154] Specifically, the first preset time range described in this embodiment of the invention refers to a pre-set time range for forcibly shutting down the first external insulation device on the target side of the greenhouse. For example, the start time for forcibly closing the external insulation on the east side is denoted as T. start_east The end time of the forced closure of the eastern external insulation is denoted as T. end_east The first preset time range is T start_east ≤h≤T end_east .

[0155] The second preset time range described in this embodiment of the invention refers to a pre-set time range for forcibly shutting down the second external insulation device on the opposite side of the target greenhouse. For example, the forced closure of the western external insulation device starts at time T. start_west and the forced closure of the western side external insulation end time T end_west The second preset time range is T. start_west ≤h≤T end_west .

[0156] Figure 5 This is the fourth schematic diagram of the logic control flow of the greenhouse environment regulation method provided by the present invention, as shown below. Figure 5 As shown in (a) of the present invention, in an embodiment of the present invention, when it is determined that the current time is within a first preset time range, i.e., T start_east ≤h≤T end_east In this case, shut down the first external insulation device, that is, retract the external insulation on the east side of the greenhouse; such as Figure 5 As shown in (b), when it is determined that the current time is within the second preset time range, i.e., T start_west ≤h≤T end_west In this case, shut down the second external insulation equipment, that is, retract the external insulation on the west side of the greenhouse.

[0157] In an embodiment of the present invention, if the current time is not within the first preset time range and the current time is not within the second preset time range, the greenhouse environment is regulated in a multi-level sequential rolling regulation manner.

[0158] In the embodiments of the present invention, the above-mentioned forced control method can be described as an attribute constraint control method. It is understood that the attribute constraint control method has a higher priority than the multi-level sequential rolling control method.

[0159] The method of this invention optimizes the control actions of the execution equipment by designing attribute constraint control methods, avoiding unreasonable phenomena such as external insulation covering and retraction, and improving the accuracy and reliability of the automatic control actions of the execution equipment in the greenhouse environment control method.

[0160] In one embodiment of the present invention, a multi-level sequential rolling environment fine-grained control method with strong constraint priority is provided, including an environmental acquisition minimum unit, a setting unit, a target temperature acquisition unit, an attribute constraint unit, and a multi-level sequential rolling control unit. The environmental acquisition minimum unit is used to acquire the indoor temperature T. in Indoor humidity (RH) in Outdoor temperature T out Total outdoor solar radiation R out and water tank temperature T sx The settings unit is used for interactive management of crops, location latitude, management mode (single space, multiple spaces, cluster), action period M, temperature change Δt, and necessary attribute values ​​of each execution device; the target temperature acquisition unit aims to calculate the target temperature T for 24 hours according to the aforementioned target temperature calculation formula. tar The purpose of the attribute constraint unit is to address the impact of external insulation on crop growth. In addition to being controlled by the multi-level sequential rolling control unit, it also requires a higher priority attribute constraint control method.

[0161] Furthermore, the multi-level sequential rolling control unit is used to execute the control logic of the multi-level sequential rolling control method. The necessary attribute values ​​set for each actuator within the unit include the minimum temperature T for opening the skylight. tc Maximum RH when spraying pw The minimum radiation R of the shade zy The lowest temperature T for active cooling fjd The highest temperature of active heating T fju Maximum frequency of active cooling (Hz), maximum frequency of active heating (Hz), critical radiation value R of the outer insulation covering the east side e And the critical radiation value R of the external insulation covering the west side w .

[0162] The greenhouse environment control system provided by the present invention is described below. The greenhouse environment control system described below can be referred to in correspondence with the greenhouse environment control method described above.

[0163] Figure 6 This is a schematic diagram of the greenhouse environment control system provided by the present invention, as shown below. Figure 6 As shown, it includes:

[0164] The acquisition module 610 is used to acquire the indoor temperature of the greenhouse at a first moment and the target temperature at the first moment; the target temperature at the first moment is determined based on the time period to which the first moment belongs and the average outdoor temperature of the target time period before the first moment.

[0165] The control module 620 is used to control the actions of various execution devices in the greenhouse according to the comparison results between the indoor temperature at the first moment and the target temperature at the first moment, and to control the operation of each device in the greenhouse in a multi-level sequential rolling control mode. The multi-level sequential rolling control mode is used to continuously adjust the temperature and humidity balance in the greenhouse.

[0166] The greenhouse environment control system described in this embodiment can be used to execute the above-described greenhouse environment control method embodiment. Its principle and technical effects are similar, and will not be repeated here.

[0167] The greenhouse environment control system of this invention, by fully considering the energy consumption requirements of the glass greenhouse during the day and night, the type of greenhouse crops, and the special geographical location of the greenhouse, determines the target temperature that the greenhouse needs to be adjusted at different times. Then, it obtains the indoor temperature of the greenhouse at the time when the system starts to run, compares the monitored indoor temperature with its corresponding target temperature, and uses the comparison result as a starting point to cyclically control the actions of each execution device in the greenhouse in a multi-level sequential rolling control manner, so as to continuously adjust the temperature and humidity balance in the greenhouse. This can greatly reduce greenhouse energy consumption, and at the same time, it realizes a precise automated control method for the greenhouse environment, which can provide a high-quality growth environment for greenhouse crops.

[0168] Figure 7 This is a schematic diagram of the physical structure of the electronic device provided by the present invention, such as... Figure 7 As shown, the electronic device may include: a processor 710, a communication interface 720, a memory 730, and a communication bus 740, wherein the processor 710, the communication interface 720, and the memory 730 communicate with each other through the communication bus 740. The processor 710 can call logical instructions in the memory 730 to execute the greenhouse environment control method provided by the above methods. The method includes: acquiring the indoor temperature of the greenhouse at a first moment and the target temperature at the first moment; the target temperature at the first moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment; based on the comparison result between the indoor temperature at the first moment and the target temperature at the first moment, controlling the actions of each execution device in the greenhouse according to a multi-level sequential rolling control method, wherein the multi-level sequential rolling control method is used to continuously adjust the temperature and humidity balance in the greenhouse.

[0169] Furthermore, the logical instructions in the aforementioned memory 730 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0170] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the greenhouse environment control method provided by the above methods. The method includes: acquiring the indoor temperature of the greenhouse at a first moment and the target temperature at the first moment; the target temperature at the first moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment; and controlling the actions of various execution devices in the greenhouse according to a multi-level sequential rolling control method based on the comparison result between the indoor temperature at the first moment and the target temperature at the first moment. The multi-level sequential rolling control method is used to continuously adjust the temperature and humidity balance in the greenhouse.

[0171] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the greenhouse environment control method provided by the above methods. The method includes: acquiring the indoor temperature of the greenhouse at a first moment and the target temperature at the first moment; the target temperature at the first moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment; and controlling the actions of various execution devices in the greenhouse according to a multi-level sequential rolling control method based on the comparison result between the indoor temperature at the first moment and the target temperature at the first moment, wherein the multi-level sequential rolling control method is used to continuously adjust the temperature and humidity balance in the greenhouse.

[0172] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0173] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling greenhouse environment, characterized in that, include: Obtain the indoor temperature of the greenhouse at the first moment and the target temperature at the first moment; The target temperature at the first moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment. Based on the comparison between the indoor temperature at the first moment and the target temperature at the first moment, the actions of each execution device in the greenhouse are controlled in a multi-level sequential rolling control method. The multi-level sequential rolling control method is used to continuously adjust the temperature and humidity balance in the greenhouse. The various execution devices include skylight devices, spray devices, shading devices, and wet curtain pump devices; the control of the actions of each execution device in the greenhouse according to a multi-level sequential rolling control method based on the comparison result between the indoor temperature at the first moment and the target temperature at the first moment includes: If the indoor temperature at the first moment is not less than the target temperature at the first moment, and the indoor temperature at the first moment is not less than the first preset temperature, then the skylight device is activated. The spraying device is activated when the indoor temperature at the second moment is not less than the first high temperature threshold and the indoor humidity at the second moment is not greater than the preset humidity; the first high temperature threshold is determined based on the sum of the target temperature at the second moment and the first temperature deviation value. If the indoor temperature at the third moment is not less than the second high temperature threshold and the total outdoor solar radiation at the third moment is not greater than the preset solar radiation value, the shading device is activated; the second high temperature threshold is determined based on the sum of the target temperature and the second temperature deviation value at the third moment. If the indoor temperature at the fourth moment is determined to be no less than the third high temperature threshold and no less than the second preset temperature, the evaporative cooling pad pump is started until the indoor temperature is determined to be decreasing. Then, the evaporative cooling pad pump, the shading device, the misting device, and the skylight device are turned off in sequence. The third high temperature threshold is determined based on the sum of the target temperature and the third temperature deviation value at the fourth moment. The third temperature deviation value is greater than the second temperature deviation value, and the second temperature deviation value is greater than the first temperature deviation value.

2. The greenhouse environment control method according to claim 1, characterized in that, The step of sequentially shutting down the evaporative cooling pad pump, the shading device, the misting device, and the skylight device when the indoor temperature is determined to be decreasing includes: If the indoor temperature at the fifth moment is determined to be less than the fourth high temperature threshold, the wet curtain water pump equipment is turned off; the fourth high temperature threshold is determined based on the sum of the target temperature at the fifth moment and the deviation value of the third temperature. If the indoor temperature at the sixth moment is determined to be less than the fifth high temperature threshold, the shading device shall be turned off; the fifth high temperature threshold shall be determined based on the sum of the deviation between the target temperature at the sixth moment and the second temperature. If the indoor temperature at the seventh moment is determined to be less than the sixth high temperature threshold, the spraying equipment is turned off; the sixth high temperature threshold is determined based on the sum of the deviation between the target temperature at the seventh moment and the first temperature. If the indoor temperature at the eighth moment is determined to be lower than the target temperature at the eighth moment, the skylight device shall be closed.

3. The greenhouse environment control method according to claim 1, characterized in that, The method further includes: If the indoor temperature at the second moment is determined to be lower than the target temperature at the second moment, the skylight device shall be closed. or, If the indoor temperature at the third moment is less than the seventh high temperature threshold or the indoor humidity at the third moment is greater than the preset humidity, the spraying device shall be turned off; the seventh high temperature threshold shall be determined based on the sum of the deviation values ​​between the target temperature and the first temperature at the third moment. or, If the indoor temperature at the fourth time point is determined to be less than the eighth high temperature threshold, the shading device is turned off; the eighth high temperature threshold is determined based on the sum of the deviation between the target temperature at the fourth time point and the second temperature value.

4. The greenhouse environment control method according to claim 2 or 3, characterized in that, The various actuators also include external insulation equipment and heat pump water pump equipment. After determining that the skylight equipment is in a closed state, the method further includes: If the indoor temperature at the ninth moment is determined to be less than the first low temperature threshold and the total outdoor solar radiation at the ninth moment is less than the first critical radiation value, the first external insulation device on the target side of the greenhouse is activated; the first low temperature threshold is determined based on the difference between the target temperature at the ninth moment and the first temperature deviation value. If the indoor temperature at the tenth moment is determined to be less than the second low temperature threshold, and the total outdoor solar radiation at the tenth moment is less than the second critical radiation value, the second external insulation device on the opposite side of the target side of the greenhouse is activated; the second low temperature threshold is determined based on the difference between the target temperature at the tenth moment and the second temperature deviation value. If the indoor temperature at the eleventh moment is determined to be less than the third low temperature threshold and less than the third preset temperature, the heat pump water pump device is started until the indoor temperature is determined to be rising. Then, the heat pump water pump device and the external insulation device are turned off in sequence. The third low temperature threshold is determined based on the difference between the target temperature at the eleventh moment and the third temperature deviation value. The external insulation device includes the first external insulation device and the second external insulation device.

5. The greenhouse environment control method according to claim 4, characterized in that, The step of sequentially shutting down the heat pump water pump and the external insulation equipment when it is determined that the indoor temperature is trending upward includes: If the indoor temperature at the twelfth moment is determined to be not less than the fourth low temperature threshold, the heat pump water pump equipment is turned off; the fourth low temperature threshold is determined based on the difference between the target temperature at the twelfth moment and the third temperature deviation value. If the indoor temperature at the thirteenth moment is not less than the fifth low temperature threshold, and the total outdoor solar radiation at the thirteenth moment is not less than the first critical radiation value and not less than the second critical radiation value, the external insulation equipment shall be turned off; the fifth low temperature threshold is determined based on the difference between the target temperature at the thirteenth moment and the first temperature deviation value.

6. The greenhouse environment control method according to claim 4, characterized in that, The method further includes: If it is determined that the current time is within the first preset time range, the first external insulation device shall be turned off; or, If it is determined that the current time falls within the second preset time range, the second external insulation device shall be turned off; The first preset time range is earlier than the second preset time range.

7. A greenhouse environment control system, characterized in that, include: The acquisition module is used to acquire the indoor temperature of the greenhouse at the first moment and the target temperature at the first moment. The target temperature at the first moment is determined based on the type of crop grown in the greenhouse, the latitude of the greenhouse, the time period to which the first moment belongs, and the average outdoor temperature of the target time period before the first moment. The control module is used to control the actions of each execution device in the greenhouse according to a multi-level sequential rolling control method based on the comparison result between the indoor temperature at the first moment and the target temperature at the first moment. The multi-level sequential rolling control method is used to continuously adjust the temperature and humidity balance in the greenhouse. The various execution devices include skylight devices, spray devices, shading devices, and wet curtain pump devices; the control of the actions of each execution device in the greenhouse according to a multi-level sequential rolling control method based on the comparison result between the indoor temperature at the first moment and the target temperature at the first moment includes: If the indoor temperature at the first moment is not less than the target temperature at the first moment, and the indoor temperature at the first moment is not less than the first preset temperature, then the skylight device is activated. The spraying device is activated when the indoor temperature at the second moment is not less than the first high temperature threshold and the indoor humidity at the second moment is not greater than the preset humidity; the first high temperature threshold is determined based on the sum of the target temperature at the second moment and the first temperature deviation value. If the indoor temperature at the third moment is not less than the second high temperature threshold and the total outdoor solar radiation at the third moment is not greater than the preset solar radiation value, the shading device is activated; the second high temperature threshold is determined based on the sum of the target temperature and the second temperature deviation value at the third moment. If the indoor temperature at the fourth moment is determined to be no less than the third high temperature threshold and no less than the second preset temperature, the evaporative cooling pad pump is started until the indoor temperature is determined to be decreasing. Then, the evaporative cooling pad pump, the shading device, the misting device, and the skylight device are turned off in sequence. The third high temperature threshold is determined based on the sum of the target temperature and the third temperature deviation value at the fourth moment. The third temperature deviation value is greater than the second temperature deviation value, and the second temperature deviation value is greater than the first temperature deviation value.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the greenhouse environment control method as described in any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the greenhouse environment control method as described in any one of claims 1 to 6.

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