Control method, device and equipment of greenhouse temperature regulation and control system and storage medium

Abstract

The invention provides a control method, device and equipment of a greenhouse temperature regulation and control system and a storage medium. The control method comprises the steps that the temperature in a greenhouse and the temperature of a first fluid are obtained; when the temperature in the greenhouse is smaller than the first heating environment temperature threshold value, the compression module is controlled to conduct heating at the first heating power; when the operation mode is a first control mode, the temperature in the greenhouse is larger than a second heating environment temperature threshold value, and the first fluid temperature is larger than a first heating fluid temperature threshold value, the compression module is controlled to conduct heating at second heating power; acquiring the first heating duration of the compression module, acquiring the in-greenhouse temperature and the first fluid temperature again when the first heating duration is equal to a first constant temperature duration threshold value, and acquiring the first fluid temperature when the in-greenhouse temperature is smaller than a third heating environment temperature threshold value or the first fluid temperature is smaller than a second heating fluid temperature threshold value; controlling the compression module to heat at the first heating power; the temperature in the greenhouse can be prevented from being too high or too low, and the temperature in the greenhouse is controlled at a stable level.

Description

Technical Field

[0001] The present application relates to but is not limited to the field of agricultural management technology, and in particular to a control method, device, equipment and storage medium for a greenhouse temperature control system. Background Art

[0002] The temperature and humidity in the greenhouse are the key factors affecting plant growth. At present, the temperature and humidity in the greenhouse are adjusted manually according to the current temperature and humidity in the greenhouse. However, due to the constant changes in the external weather and climate, manual adjustment is usually not possible in a timely manner. For some temperature and humidity sensitive plants, more manpower is needed to adjust the temperature and humidity in real time.

[0003] In the related technology, the existing greenhouse temperature management system controls the temperature control module to run at the highest power after determining that the greenhouse environment meets the conditions. However, there is usually a lag in temperature detection and temperature regulation. When the management system detects that the temperature in the greenhouse has reached the expected level, the temperature in the greenhouse has often exceeded the actual control requirements, thereby causing damage to the crops. Summary of the invention

[0004] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0005] The embodiments of the present application provide a control method, device, equipment and storage medium for a greenhouse temperature control system, which can prevent the temperature in the greenhouse from being overheated or overcooled and control the temperature in the greenhouse at a stable level.

[0006] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application proposes a control method for a temperature control system in a greenhouse, characterized in that the temperature control system includes a control module, a compression module, a temperature control water pump, a temperature control pipe and a first fan, the temperature control pipe is connected to the compression module, the temperature control pipe is used to circulate a heat-carrying fluid, the compression module is used to heat the heat-carrying fluid, the temperature control pipe and the first fan are arranged in the greenhouse, the temperature control water pump is arranged on the temperature control pipe, the compression module, the temperature control water pump, and the first fan are electrically connected to the control module respectively, and the control method includes: obtaining the greenhouse temperature and the first fluid temperature, wherein the first fluid temperature refers to the temperature when the heat-carrying fluid flows into the compression module; when the greenhouse temperature is lower than a preset first heating environment temperature threshold, the control Control the compression module to perform heating with a first heating power; obtain the operating mode of the temperature regulation system, and when the operating mode is the first control mode, the temperature in the greenhouse is greater than a preset second heating environment temperature threshold, and the first fluid temperature is greater than a preset first heating fluid temperature threshold, control the compression module to perform heating with a second heating power, wherein the second heating power is less than the first heating power; obtain the first heating time for the compression module to perform heating with the second heating power, and when the first heating time is equal to a preset first constant temperature time threshold, obtain the greenhouse temperature and the first fluid temperature again, and when the greenhouse temperature is less than a preset third heating environment temperature threshold, or the first fluid temperature is less than a preset second heating fluid temperature threshold, control the compression module to perform heating with the first heating power.

[0007] In one embodiment, the control method further includes: when the operating mode is the second control mode, controlling the compression module to perform heating with the first heating power; when the temperature in the greenhouse is greater than a preset fourth heating environment temperature threshold, controlling the compression module to stop heating.

[0008] In one embodiment, the compression module is also used to cool the heat carrier fluid, and the control method further includes: when the temperature in the greenhouse is greater than a preset first cooling environment temperature threshold, controlling the compression module to cool with a first cooling power; when the operating mode is a first control mode, the temperature in the greenhouse is greater than a preset second cooling environment temperature threshold, and the first fluid temperature is greater than a preset first cooling fluid threshold, controlling the compression module to cool with a second cooling power, wherein the second cooling power is less than the first cooling power.

[0009] In one embodiment, the control method also includes: obtaining a first refrigeration time for the compression module to perform refrigeration at a second refrigeration power; when the first refrigeration time is equal to a preset second constant temperature time threshold, obtaining the greenhouse temperature and the first fluid temperature again, and when the greenhouse temperature is greater than a preset third refrigeration environment temperature threshold, or the first fluid temperature is greater than a preset second refrigeration fluid threshold, controlling the compression module to perform refrigeration at the first refrigeration power.

[0010] In one embodiment, the control method also includes: obtaining the continuous operation time and the cumulative operation time of the compression module, wherein the cumulative operation time refers to the operation time of the compression module from power-on to the current operation time, and the continuous operation time refers to the time the compression module continuously runs at the current operating power; when the cumulative operation time is equal to a preset first continuous operation time threshold, and the continuous operation time is equal to a preset second continuous operation time threshold, obtaining the external coil temperature of the compression module and the ambient temperature outside the greenhouse; when the ambient temperature is lower than a preset first temperature threshold, and the difference between the ambient temperature and the external coil temperature is greater than a preset difference threshold, controlling the compression module to defrost.

[0011] In one embodiment, the compression module includes a compressor, a condenser, a second fan and an evaporator, the compressor, the condenser and the evaporator are connected through a refrigerant pipe, and the refrigerant pipe is provided with a second fan, and the control of the compression module for defrosting includes: controlling the compression module to operate at a preset first defrost frequency and recording the defrost duration; when the defrost duration is equal to a preset first defrost time threshold, changing the flow direction of the refrigerant so that the refrigerant flows from the evaporator to the condenser; when the defrost duration is equal to a preset second defrost time threshold, controlling the fan to stop operating, and controlling the compression module to operate at a preset second defrost frequency; when the external coil temperature is greater than a preset second temperature threshold, or the defrost duration is equal to a preset third defrost time threshold, controlling the compression module to stop defrosting.

[0012] In one embodiment, the control method also includes: when the external coil temperature is greater than a preset second temperature threshold, or the defrost time is equal to a preset third defrost time threshold, controlling the compression module to operate at the first defrost frequency; when the defrost time is equal to a preset fourth defrost time threshold, changing the flow direction of the refrigerant again so that the refrigerant flows from the condenser to the evaporator; when the defrost time is equal to a preset fifth defrost time threshold, controlling the second fan to start, and controlling the compression module to stop defrosting.

[0013] To achieve the above-mentioned purpose, the second aspect of the embodiment of the present application proposes a control device for a greenhouse temperature control system, wherein the temperature control system includes a compression module, a temperature control water pump, a temperature control pipe and a first fan, and the control device includes: an environmental detection component for obtaining the greenhouse temperature and the first fluid temperature, wherein the first fluid temperature refers to the temperature when the heat-carrying fluid flows into the compression module; a first processing component for controlling the compression module to heat with a first heating power when the greenhouse temperature is less than a preset first heating environment temperature threshold; a mode detection component for obtaining the operating mode of the temperature control system, and when the operating mode is the first control mode, the greenhouse temperature is greater than When the second heating environment temperature threshold is preset and the first fluid temperature is greater than the first heating fluid temperature threshold, the compression module is controlled to perform heating with a second heating power, wherein the second heating power is less than the first heating power; a second processing component is used to obtain the first heating time for the compression module to perform heating with the second heating power, and when the first heating time is equal to the preset first constant temperature time threshold, the greenhouse temperature and the first fluid temperature are obtained again, and when the greenhouse temperature is less than the preset third heating environment temperature threshold, or the first fluid temperature is less than the preset second heating fluid temperature threshold, the compression module is controlled to perform heating with the first heating power.

[0014] To achieve the above-mentioned purpose, the third aspect of an embodiment of the present application proposes an electronic device, which includes a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, it implements the control method of the greenhouse temperature control system as described in the first aspect.

[0015] To achieve the above-mentioned purpose, the fourth aspect of an embodiment of the present application proposes a storage medium, which stores a computer program, and is characterized in that when the computer program is executed by a processor, it implements the control method of the greenhouse temperature control system as described in the first aspect.

[0016] According to the solution provided in the embodiment of the present application, when the temperature control system is started, by detecting the temperature in the greenhouse and the first fluid temperature of the heat-carrying fluid, when the temperature in the greenhouse is lower than the preset first heating environment temperature threshold, it indicates that the crops in the greenhouse are in a low temperature environment. At this time, the compression module is controlled to perform heating with the first heating power, so that the temperature in the greenhouse can be quickly increased. After running at the first heating power for a period of time, the operation mode of the temperature control system is obtained. When the operation mode is the first control mode, based on the temperature in the greenhouse and the first fluid temperature when the heat-carrying fluid enters the compression module, when the temperature in the greenhouse is greater than the second heating environment temperature threshold, and the first fluid temperature is greater than the first heating fluid temperature threshold, the compression module is controlled to perform heating with the second heating power, and the second heating power is lower than the first heating power, so that the temperature control system can be reduced. The energy consumption of the control system is reduced. Due to the lag in temperature detection and temperature control, constant temperature control with a lower second power can control the temperature in the greenhouse at a stable level, protecting crops from the adverse effects of low and high temperatures. In this process, the temperature in the greenhouse should increase slowly and steadily. When the first heating time of the compression module using the second heating power is equal to the first constant temperature time threshold, the greenhouse temperature and the first fluid temperature are obtained again. When the greenhouse temperature is lower than the third heating environment temperature threshold and the first fluid temperature is lower than the second heating fluid temperature threshold, it means that the external ambient temperature is low, or the heating efficiency of the compression module is lower than the speed at which the greenhouse releases heat to the outside. At this time, the compression module is controlled to heat with the first heating power, so as to ensure that the temperature in the greenhouse is always maintained at an appropriate level and protect crops from frostbite.

[0017] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0019] Figure 1 An optional flow chart of a greenhouse temperature control system method provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of an optional flow chart of the second control mode provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of an optional flow chart of a refrigeration mode provided in an embodiment of the present application;

[0022] Figure 4 Another optional flow chart of the refrigeration mode provided in the embodiment of the present application;

[0023] Figure 5 A schematic diagram of an optional process flow of a defrost mode provided in an embodiment of the present application;

[0024] Figure 6 An optional specific flow chart of a defrosting mode provided in an embodiment of the present application;

[0025] Figure 7 Another optional specific flow chart of the defrosting mode provided in the embodiment of the present application;

[0026] Figure 8 A schematic diagram of an optional architecture of a control device for a greenhouse temperature control system provided in an embodiment of the present application;

[0027] Fig. 9 It is a schematic diagram of an optional hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0029] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of this application, unless otherwise clearly defined, terms such as setting, installation, and electrical connection should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0032] In the related technology, the existing greenhouse temperature management system controls the temperature control module to run at the highest power after determining that the greenhouse environment meets the conditions. However, there is usually a lag in temperature detection and temperature regulation. When the management system detects that the temperature in the greenhouse has reached the expected level, the temperature in the greenhouse has often exceeded the actual control requirements, thereby causing damage to the crops.

[0033] In response to the problem that the greenhouse temperature is prone to overheating, the present application provides a control method, device, equipment and storage medium for a greenhouse temperature control system. The temperature control system includes a control module, a compression module, a temperature control water pump, a temperature control pipe and a first fan. The temperature control pipe is connected to the compression module. The temperature control pipe is used to circulate a heat-carrying fluid. The compression module is used to heat the heat-carrying fluid. The temperature control pipe and the first fan are arranged in the greenhouse. The temperature control water pump is arranged on the temperature control pipe. The compression module, the temperature control water pump and the first fan are electrically connected to the control module respectively. The control method includes: obtaining the temperature in the greenhouse and the first fluid temperature, wherein the first fluid temperature refers to the temperature when the heat-carrying fluid flows into the compression module; when the temperature in the greenhouse is lower than a preset first heating environment temperature threshold, controlling the compression module The module performs heating with a first heating power; obtains the operating mode of the temperature regulation system, and when the operating mode is the first control mode, the temperature in the greenhouse is greater than the preset second heating environment temperature threshold, and the first fluid temperature is greater than the preset first heating fluid temperature threshold, controls the compression module to perform heating with a second heating power, wherein the second heating power is less than the first heating power; obtains the first heating time for the compression module to perform heating with the second heating power, and when the first heating time is equal to the preset first constant temperature time threshold, obtains the greenhouse temperature and the first fluid temperature again, and when the greenhouse temperature is less than the preset third heating environment temperature threshold, or the first fluid temperature is less than the preset second heating fluid temperature threshold, controls the compression module to perform heating with the first heating power.By the control method of the greenhouse temperature control system proposed in the embodiment of the present application, when the temperature control system is started, by detecting the temperature in the greenhouse and the first fluid temperature of the heat-carrying fluid, when the temperature in the greenhouse is lower than the preset first heating environment temperature threshold, it means that the crops in the greenhouse are in a low temperature environment. At this time, by controlling the compression module to heat with the first heating power, the temperature in the greenhouse can be quickly increased. After running at the first heating power for a period of time, the operation mode of the temperature control system is obtained. When the operation mode is the first control mode, based on the temperature in the greenhouse and the first fluid temperature when the heat-carrying fluid enters the compression module, when the temperature in the greenhouse is greater than the second heating environment temperature threshold and the first fluid temperature is greater than the first heating fluid temperature threshold, the compression module is controlled to heat with the second heating power, and the second heating power is lower than the first heating power, so that the temperature in the greenhouse can be quickly increased. It can reduce the energy consumption of the temperature control system. Due to the hysteresis of temperature detection and temperature control, constant temperature control with a lower second power can control the temperature in the greenhouse at a stable level, protecting crops from the adverse effects of low and high temperatures. In this process, the temperature in the greenhouse should be increased slowly and steadily. When the first heating time of the compression module at the second heating power is equal to the first constant temperature time threshold, the greenhouse temperature and the first fluid temperature are obtained again. When the greenhouse temperature is lower than the third heating environment temperature threshold and the first fluid temperature is lower than the second heating fluid temperature threshold, it means that the external ambient temperature is low, or the heating efficiency of the compression module is lower than the speed at which the greenhouse releases heat to the outside. At this time, the compression module is controlled to heat with the first heating power, so as to ensure that the temperature in the greenhouse is always maintained at an appropriate level and protect crops from frostbite.

[0034] The control method, device, equipment and storage medium of the greenhouse temperature control system provided in the embodiments of the present application are specifically explained through the following embodiments. First, the control method in the embodiments of the present application is described.

[0035] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0036] Reference Figure 1 In one embodiment of the present application, a control method for a temperature control system in a greenhouse is provided. The temperature control system includes a control module, a compression module, a temperature control water pump, a temperature control pipe and a first fan. The temperature control pipe is connected to the compression module. The temperature control pipe is used to circulate a heat-carrying fluid. The compression module is used to heat the heat-carrying fluid. The temperature control pipe and the first fan are arranged in the greenhouse. The temperature control water pump is arranged on the temperature control pipe. The compression module, the temperature control water pump and the first fan are electrically connected to the control module respectively. The control method includes but is not limited to the following steps S110 to S140:

[0037] Step S110, obtaining the temperature in the greenhouse and the temperature of the first fluid, wherein the temperature of the first fluid refers to the temperature of the heat-carrying fluid when it flows into the compression module;

[0038] Step S120, when the temperature in the greenhouse is lower than a preset first heating environment temperature threshold, controlling the compression module to perform heating at a first heating power;

[0039] Step S130, obtaining the operation mode of the temperature control system, when the operation mode is the first control mode, the temperature in the greenhouse is greater than the preset second heating environment temperature threshold, and the first fluid temperature is greater than the preset first heating fluid temperature threshold, controlling the compression module to perform heating at a second heating power, wherein the second heating power is less than the first heating power;

[0040] Step S140, obtain the first heating time of the compression module at the second heating power for heating. When the first heating time is equal to the preset first constant temperature time threshold, obtain the greenhouse temperature and the first fluid temperature again. When the greenhouse temperature is lower than the preset third heating environment temperature threshold, or the first fluid temperature is lower than the preset second heating fluid temperature threshold, control the compression module to heat at the first heating power.

[0041] It can be understood that when the temperature control system is started, by detecting the temperature in the greenhouse and the first fluid temperature of the heat-carrying fluid, when the temperature in the greenhouse is lower than the preset first heating environment temperature threshold, it means that the crops in the greenhouse are in a low temperature environment. At this time, by controlling the compression module to heat with the first heating power, the temperature in the greenhouse can be quickly increased. After running at the first heating power for a period of time, the operation mode of the temperature control system is obtained. When the operation mode is the first control mode, based on the greenhouse temperature and the first fluid temperature when the heat-carrying fluid enters the compression module, when the greenhouse temperature is greater than the second heating environment temperature threshold and the first fluid temperature is greater than the first heating fluid temperature threshold, the compression module is controlled to heat with the second heating power, and the second heating power is lower than the first heating power, thereby reducing the temperature control system. Energy consumption. Due to the hysteresis of temperature detection and temperature control, constant temperature control with a lower second power can control the temperature in the greenhouse at a stable level, protecting crops from the adverse effects of low and high temperatures. In this process, the temperature in the greenhouse should increase slowly and steadily. When the first heating time of the compression module using the second heating power is equal to the first constant temperature time threshold, the greenhouse temperature and the first fluid temperature are obtained again. When the greenhouse temperature is lower than the third heating environment temperature threshold and the first fluid temperature is lower than the second heating fluid temperature threshold, it means that the external ambient temperature is low, or the heating efficiency of the compression module is lower than the speed at which the greenhouse releases heat to the outside. At this time, the compression module is controlled to heat with the first heating power, so as to ensure that the temperature in the greenhouse is always maintained at an appropriate level and protect crops from frostbite.

[0042] In a specific embodiment, the heat-carrying fluid is water, and a plurality of air diffusion holes are provided on a section of the temperature-control pipe close to the first fan. An electric baffle is provided on the air diffusion holes, and the electric baffle is electrically connected to the control module. When the temperature in the greenhouse is low and the temperature of the first fluid is high, or when the difference between the temperature of the second fluid flowing out of the compression module and the temperature of the first fluid is less than a certain threshold, the control module controls the electric baffle to open, so that the inside of the temperature-control pipe is in contact with the outside air, and the water absorbs the temperature of the flowing water when evaporating into water vapor. The water vapor is blown away and diffused by the first fan, dissipates heat in the greenhouse and condenses into water droplets, thereby improving the heat exchange efficiency between the heat-carrying fluid and the air in the greenhouse, and also appropriately increasing the humidity in the greenhouse.

[0043] In a specific embodiment, the temperature control system also includes a humidity sensor, which is electrically connected to the control module. The control module obtains the humidity in the greenhouse through the humidity sensor. When the humidity in the greenhouse is lower than a preset humidity threshold, the control module controls the electric baffle to open, thereby effectively increasing the humidity in the greenhouse.

[0044] Under normal circumstances, when the operation mode of the compression module is the first control mode, in the process of the compression module performing heating at the second heating power, the temperature in the greenhouse rises slowly. When the temperature in the greenhouse is greater than the preset fourth heating environment temperature threshold, or the first fluid temperature is greater than the preset third heating fluid temperature, the compression module stops operating, but the first fan and the thermostatic water pump continue to operate. When the temperature in the greenhouse drops again, the temperature in the greenhouse is lower than the second cooling environment temperature threshold, or the first fluid temperature is lower than the first heating fluid temperature threshold, the compression module resumes heating at the second heating power.

[0045] In addition, refer to Figure 2 As shown, in one embodiment of the present application, the control method further includes but is not limited to the following steps S210 to S220:

[0046] Step S210, when the operation mode is the second control mode, controlling the compression module to perform heating at the first heating power;

[0047] Step S220: When the temperature in the greenhouse is greater than a preset fourth heating environment temperature threshold, the compression module is controlled to stop heating.

[0048] It can be understood that by operating at the first heating power in the second control mode, the temperature in the greenhouse can be quickly raised to the required level, the temperature in the greenhouse can be raised in time, and the temperature in the greenhouse can be raised at the fastest speed, ensuring that the crops can obtain a suitable growth environment in the shortest time and can be effectively protected in a low temperature environment; at the same time, by setting the fourth heating environment temperature threshold, when the temperature in the greenhouse reaches or exceeds the threshold, the compression module will automatically stop heating, thereby avoiding unnecessary energy waste and preventing the temperature in the greenhouse from being too high and causing heat damage to the crops. It not only helps to save energy and reduce operating costs, but also helps to maintain the optimal temperature conditions for crop growth, promote healthy growth of crops, and improve yield and quality.

[0049] In a specific embodiment, when the operating mode is the second control mode, the control module obtains the humidity in the greenhouse. When the humidity in the greenhouse is lower than a preset humidity threshold, the control module controls the electric baffle to open, thereby improving the efficiency of temperature regulation. When the humidity in the greenhouse is equal to or higher than the humidity threshold, the control module controls the electric baffle to close, thereby preventing the humidity in the greenhouse from being too high and affecting crop growth.

[0050] In addition, refer to Figure 3 As shown, in one embodiment of the present application, the compression module is also used to refrigerate the heat-carrying fluid, and the control method further includes but is not limited to the following steps S310 to S320:

[0051] Step S310, when the temperature in the greenhouse is greater than a preset first cooling environment temperature threshold, controlling the compression module to perform cooling at a first cooling power;

[0052] Step S320, when the operation mode is the first control mode, the temperature in the greenhouse is greater than the preset second refrigeration environment temperature threshold, and the first fluid temperature is greater than the preset first refrigeration fluid threshold, the compression module is controlled to perform refrigeration with a second refrigeration power, wherein the second refrigeration power is less than the first refrigeration power.

[0053] It can be understood that in a high temperature environment, that is, when the temperature in the greenhouse is greater than the preset first cooling environment temperature threshold, controlling the compression module to cool at the first cooling power can quickly adjust the temperature in the greenhouse to a suitable level to ensure ideal conditions for crop growth. In the first control mode, the compression module optimizes energy efficiency by reducing the cooling power to the second cooling power. The cooling power in the first control mode is lower than that in the second control mode, which helps to maintain the temperature in the greenhouse within a relatively stable range while reducing energy consumption.

[0054] In constant temperature control mode, the system intelligently adjusts the cooling power according to the real-time monitored greenhouse temperature and the first fluid temperature of the heat-carrying fluid. When both the greenhouse temperature and the first fluid temperature exceed the preset threshold, the compression module operates at a lower second cooling power to achieve fine temperature control, reduce energy consumption, and maintain stable greenhouse temperature.

[0055] Under normal circumstances, when the operating mode of the compression module is the first control mode, during the process of the compression module performing cooling at the second cooling power, the temperature in the greenhouse drops slowly. When the temperature in the greenhouse is lower than the preset fourth cooling environment temperature threshold, or the first fluid temperature is lower than the preset third cooling fluid temperature, the compression module stops operating, but the first fan and the thermostatic water pump continue to operate. When the temperature in the greenhouse rises again, the temperature in the greenhouse is higher than the second cooling environment temperature threshold, or the first fluid temperature is higher than the first cooling fluid temperature threshold, the compression module resumes cooling at the second cooling power.

[0056] In addition, refer to Figure 4 As shown, in one embodiment of the present application, the control method further includes but is not limited to the following steps S410 to S420:

[0057] Step S410, obtaining a first cooling time duration for the compression module to perform cooling at a second cooling power;

[0058] Step S420, when the first cooling time is equal to the preset second constant temperature time threshold, the greenhouse temperature and the first fluid temperature are obtained again. When the greenhouse temperature is greater than the preset third cooling environment temperature threshold, or the first fluid temperature is greater than the preset second cooling fluid threshold, the compression module is controlled to perform cooling with the first cooling power.

[0059] It can be understood that by obtaining the duration of cooling with the second cooling power of the compression module, the compression module adjusts the cooling strategy according to the duration. When the first cooling duration is equal to the preset second constant temperature duration threshold, if the temperature in the greenhouse is still higher than the third cooling environment temperature threshold or the first fluid temperature is higher than the second cooling fluid temperature threshold, the system will re-cool with the first cooling power, thereby effectively optimizing the environmental conditions in the greenhouse and ensuring a suitable temperature for crop growth. In summary, this control method of the temperature control system can not only provide fast temperature detection and control response, but also optimize energy use while maintaining temperature stability, creating a more suitable growth environment for crops.

[0060] In addition, refer to Figure 5 As shown, in one embodiment of the present application, the control method further includes but is not limited to the following steps S510 to S530:

[0061] Step S510, obtaining the continuous operation time and cumulative operation time of the compression module, wherein the cumulative operation time refers to the operation time of the compression module from power-on to the current operation time, and the continuous operation time refers to the time length of time the compression module continuously operates at the current operation power;

[0062] Step S520, when the accumulated operation time is equal to the preset first duration threshold, and the continuous operation time is equal to the preset second duration threshold, obtaining the external coil temperature of the compression module and the ambient temperature outside the greenhouse;

[0063] Step S530, when the ambient temperature is lower than a preset first temperature threshold, and the difference between the ambient temperature and the external coil temperature is higher than a preset difference threshold, the compression module is controlled to perform defrosting.

[0064] It is understandable that by monitoring the continuous operation time and cumulative operation time of the compression module, when the cumulative operation time and the continuous operation time both exceed the preset threshold, the system will further obtain the external coil temperature of the compression module and the ambient temperature outside the greenhouse. When the ambient temperature is lower than the preset first temperature threshold, and the difference between the ambient temperature and the external coil temperature exceeds the preset difference threshold, the system will control the compression module to perform defrosting. This is very important, because timely defrosting can effectively avoid the decrease in heat exchange efficiency caused by too thick frost layer, and can also effectively avoid the increase in energy consumption and the decrease in heating effect caused by the accumulation of frost layer, ensuring that the compression module can operate in the best state, and also help to extend the service life of the compression module equipment.

[0065] Specifically, in one embodiment of the present application, the compression module includes a compressor, a condenser, a second fan and an evaporator, the compressor, the condenser and the evaporator are connected through a refrigerant pipeline, and the refrigerant pipeline is provided with a second fan, Figure 6 As shown, Figure 5 Step S530 in the embodiment includes but is not limited to the following steps S610 to S640:

[0066] Step S610, controlling the compression module to operate at a preset first defrosting frequency, and recording the defrosting duration;

[0067] Step S620, when the defrost time is equal to a preset first defrost time threshold, changing the flow direction of the refrigerant so that the refrigerant flows from the evaporator to the condenser;

[0068] Step S630, when the defrost duration is equal to a preset second defrost time threshold, the fan is controlled to stop operating, and the compression module is controlled to operate at a preset second defrost frequency;

[0069] Step S640, when the temperature of the external coil is greater than the preset second temperature threshold, or the defrost time is equal to the preset third defrost time threshold, the compression module is controlled to stop defrosting.

[0070] It should be noted that the heating frequency when the compressor is performing heating and the cooling frequency when the compressor is performing cooling are both greater than the first defrosting frequency.

[0071] Based on this, by controlling the compression module to operate at the first defrost frequency and controlling the reverse flow of the refrigerant, the waste heat of the system can be used for defrosting. This method is not only energy-saving and efficient, but also reduces the demand for external energy. During the period from the first defrost time threshold to the second defrost time threshold, the second fan continues to operate, thereby performing preliminary cleaning of the frost layer on the refrigerant pipe and removing dirt on the outer surface of the frost layer. When the defrost time is equal to the second defrost time threshold, the second fan is turned off to avoid splashing of water droplets from the frost layer and ensure the safe operation of the compressor. When the external coil temperature returns to the normal range or the defrost time reaches the preset third defrost time, the compression module automatically stops defrosting, thereby avoiding energy waste caused by excessive defrosting.

[0072] In a specific embodiment, when the defrost duration is equal to a preset third defrost time threshold, the external coil temperature is obtained. If the external coil temperature is lower than the second temperature threshold, after the compression module exits defrosting, the continuous operation duration and the cumulative operation duration of the compression module are re-recorded. When the cumulative operation duration is equal to the preset third continuous operation duration threshold, and the continuous operation duration is equal to the preset fourth continuous operation duration threshold, the compression module defrosts again, wherein the third continuous operation duration threshold is less than the first continuous operation duration threshold, and the fourth continuous operation duration threshold is less than the second continuous operation duration threshold.

[0073] In addition, refer to Figure 7 As shown, in one embodiment of the present application, the control method further includes but is not limited to the following steps S710 to S730:

[0074] Step S710, when the temperature of the external coil is greater than a preset second temperature threshold, or the defrost time is equal to a preset third defrost time threshold, controlling the compression module to operate at a first defrost frequency;

[0075] Step S720, when the defrost time is equal to the preset fourth defrost time threshold, changing the flow direction of the refrigerant again so that the refrigerant flows from the condenser to the evaporator;

[0076] Step S730, when the defrost duration is equal to the preset fifth defrost time threshold, the second fan is controlled to start, and the compression module is controlled to stop defrosting.

[0077] It can be understood that after the defrost work is completed, by controlling the compression module to operate at the first defrost frequency, it can ensure that the frost layer is completely melted, avoiding the residual frost layer from affecting the heat exchange efficiency of the system, and when the defrost time reaches the fourth defrost time threshold, by changing the flow direction of the refrigerant, the system recovers from the defrost mode to the normal refrigeration cycle, ensuring that the system can quickly respond to indoor cooling needs; by controlling the start-up of the second fan, it helps to quickly restore air circulation after the defrost is completed, and at the same time helps the remaining frost water evaporate, reducing the impact of the temperature difference change at the end of the defrost on the indoor environmental comfort.

[0078] In addition, refer to Figure 8 As shown, the present application also proposes a control device 800 for a greenhouse temperature control system. The temperature control system includes a compression module, a temperature control water pump, a temperature control pipeline and a first fan. The control device includes:

[0079] The environment detection component 801 is used to obtain the temperature in the greenhouse and the temperature of the first fluid, wherein the temperature of the first fluid refers to the temperature of the heat-carrying fluid when it flows into the compression module;

[0080] The first processing component 802 is used to control the compression module to perform heating at a first heating power when the temperature in the greenhouse is lower than a preset first heating environment temperature threshold;

[0081] The mode detection component 803 is used to obtain the operation mode of the temperature control system. When the operation mode is the first control mode, the temperature in the greenhouse is greater than the preset second heating environment temperature threshold, and the first fluid temperature is greater than the preset first heating fluid temperature threshold, the compression module is controlled to perform heating at the second heating power, wherein the second heating power is less than the first heating power;

[0082] The second processing component 804 is used to obtain the first heating time of the compression module at the second heating power for heating. When the first heating time is equal to the preset first constant temperature time threshold, the greenhouse temperature and the first fluid temperature are obtained again. When the greenhouse temperature is lower than the preset third heating environment temperature threshold, or the first fluid temperature is lower than the preset second heating fluid temperature threshold, the compression module is controlled to heat at the first heating power.

[0083] It can be understood that the specific implementation of the control device 800 of the greenhouse temperature control system is basically the same as the specific implementation of the control method of the greenhouse temperature control system mentioned above, and will not be repeated here.

[0084] In addition, the present application also proposes a greenhouse temperature control system, comprising:

[0085] A first temperature sensor is used to detect the temperature in the greenhouse;

[0086] A temperature control pipe, in which a heat-carrying fluid flows;

[0087] A temperature-adjusting water pump is arranged on the temperature-adjusting pipeline;

[0088] A first fan is arranged on the temperature adjustment pipe;

[0089] A compression module is connected to the temperature adjustment pipeline. The compression module is used to adjust the temperature of the heat-carrying fluid. The compression module includes a compressor, an evaporator, a condenser and a second fan. A refrigeration pipeline is connected between the compressor, the evaporator and the condenser. A refrigerant flows in the refrigeration pipeline.

[0090] The control module, the first temperature sensor, the temperature regulating water pump, the first fan and the compression module are electrically connected to the control module respectively, and the control module is used to execute the control method in the above embodiment.

[0091] In a specific embodiment, a second temperature sensor is provided on one end of the temperature control pipe connected to the inlet of the compression module, and a third temperature sensor is provided on one end of the temperature control pipe connected to the outlet of the compression module. The second temperature sensor and the third temperature sensor are electrically connected to the control module respectively.

[0092] It can be understood that the specific implementation of the greenhouse temperature control system is basically the same as the specific implementation of the control method of the greenhouse temperature control system mentioned above, and will not be repeated here.

[0093] In addition, refer to Fig. 9 , Fig. 9 : is an optional hardware structure diagram of an electronic device provided in an embodiment of the present application, the electronic device includes:

[0094] The processor 901 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of the present application;

[0095] The memory 902 can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 902 can store an operating system and other application programs. When the technical solution provided in the embodiment of this specification is implemented by software or firmware, the relevant program code is stored in the memory 902, and the processor 901 calls and executes the control method of the greenhouse temperature control system of the embodiment of the present application, for example, to execute the above-described Figure 1Steps S110 to S140 of the method, Figure 2 Steps S210 to S220 of the method, Figure 3 Steps S310 to S320 of the method, Figure 4 Steps S410 to S420 of the method, Figure 5 Steps S510 to S530 of the method, Figure 6 Steps S610 to S640 of the method, Figure 7 Steps S710 to S730 of the method;

[0096] Input / output interface 903, used to implement information input and output;

[0097] Communication interface 904, used to realize communication interaction between the device and other devices, which can be realized by wired mode (such as USB, network cable, etc.) or wireless mode (such as mobile network, WIFI, Bluetooth, etc.);

[0098] A bus 905 that transmits information between various components of the device (e.g., the processor 901, the memory 902, the input / output interface 903, and the communication interface 904);

[0099] The processor 901 , the memory 902 , the input / output interface 903 and the communication interface 904 are connected to each other in communication within the device via a bus 905 .

[0100] The present application also provides a storage medium, which is a computer-readable storage medium for computer-readable storage. The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the control method of the greenhouse temperature control system described above. For example, the above-described Figure 1 Steps S110 to S140 of the method, Figure 2 Steps S210 to S220 of the method, Figure 3 Steps S310 to S320 of the method, Figure 4 Steps S410 to S420 of the method, Figure 5 Steps S510 to S530 of the method, Figure 6 Steps S610 to S640 of the method, Figure 7 The method comprises steps S710 to S730.

[0101] The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely disposed relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0102] The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0103] It can be understood by those skilled in the art that Figures 1 to 7 The technical solutions shown in the figure do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than those shown in the figure, or a combination of certain steps, or different steps.

[0104] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0105] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.

[0106] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0107] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0108] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0109] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0110] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0111] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including multiple instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), disk or optical disk and other media that can store programs.

[0112] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. A control method for a greenhouse temperature control system, characterized in that: The temperature control system includes a control module, a compression module, a temperature control water pump, a temperature control pipe and a first fan, the temperature control pipe is connected to the compression module, the temperature control pipe is used to circulate a heat-carrying fluid, the compression module is used to heat the heat-carrying fluid, the temperature control pipe and the first fan are arranged in the greenhouse, the temperature control water pump is arranged on the temperature control pipe, the compression module, the temperature control water pump, and the first fan are electrically connected to the control module respectively, and the control method includes: Acquire the temperature in the shed and the first fluid temperature, wherein the first fluid temperature refers to the temperature of the heat-carrying fluid when it flows into the compression module; When the temperature in the greenhouse is lower than a preset first heating environment temperature threshold, controlling the compression module to perform heating at a first heating power; Obtaining an operation mode of the temperature regulation system, and when the operation mode is a first control mode, the temperature in the greenhouse is greater than a preset second heating environment temperature threshold, and the first fluid temperature is greater than a preset first heating fluid temperature threshold, controlling the compression module to perform heating at a second heating power, wherein the second heating power is less than the first heating power; Obtain a first heating time for the compression module to perform heating at a second heating power; when the first heating time is equal to a preset first constant temperature time threshold, obtain the greenhouse temperature and the first fluid temperature again; when the greenhouse temperature is lower than a preset third heating environment temperature threshold, or the first fluid temperature is lower than a preset second heating fluid temperature threshold, control the compression module to perform heating at the first heating power.

2. The control method according to claim 1, characterized in that: The control method further comprises: When the operation mode is the second control mode, controlling the compression module to perform heating at the first heating power; When the temperature in the greenhouse is greater than a preset fourth heating environment temperature threshold, the compression module is controlled to stop heating.

3. The control method according to claim 1, characterized in that: The compression module is also used to refrigerate the heat-carrying fluid, and the control method further includes: When the temperature in the greenhouse is greater than a preset first refrigeration environment temperature threshold, controlling the compression module to perform refrigeration at a first refrigeration power; When the operating mode is the first control mode, the temperature in the greenhouse is greater than the preset second refrigeration environment temperature threshold, and the first fluid temperature is greater than the preset first refrigeration fluid threshold, the compression module is controlled to perform refrigeration with a second refrigeration power, wherein the second refrigeration power is less than the first refrigeration power.

4. The control method according to claim 3, characterized in that: The control method further comprises: Obtaining a first cooling time duration for the compression module to perform cooling at a second cooling power; When the first cooling time is equal to the preset second constant temperature time threshold, the greenhouse temperature and the first fluid temperature are obtained again. When the greenhouse temperature is greater than the preset third cooling environment temperature threshold, or the first fluid temperature is greater than the preset second cooling fluid threshold, the compression module is controlled to perform cooling with the first cooling power.

5. The control method according to claim 1, characterized in that: The control method further comprises: Obtaining the continuous operation time and the cumulative operation time of the compression module, wherein the cumulative operation time refers to the operation time of the compression module from power-on to the current operation time, and the continuous operation time refers to the time duration of the compression module continuously running at the current operation power; When the accumulated running time is equal to a preset first duration threshold, and the continuous running time is equal to a preset second duration threshold, obtaining the external coil temperature of the compression module and the ambient temperature outside the greenhouse; When the ambient temperature is lower than a preset first temperature threshold, and the difference between the ambient temperature and the external coil temperature is greater than a preset difference threshold, the compression module is controlled to perform defrosting.

6. The control method according to claim 5, characterized in that: The compression module includes a compressor, a condenser, a second fan and an evaporator, the compressor, the condenser and the evaporator are connected through a refrigerant pipeline, the refrigerant pipeline is provided with a second fan, and the control of the compression module to defrost includes: Controlling the compression module to operate at a preset first defrosting frequency and recording the defrosting duration; When the defrost time is equal to a preset first defrost time threshold, changing the flow direction of the refrigerant so that the refrigerant flows from the evaporator to the condenser; When the defrost duration is equal to a preset second defrost time threshold, the fan is controlled to stop operating, and the compression module is controlled to operate at a preset second defrost frequency; When the temperature of the outer coil is greater than a preset second temperature threshold, or the defrost time is equal to a preset third defrost time threshold, the compression module is controlled to stop defrosting.

7. The control method according to claim 6, characterized in that: The control method further comprises: When the temperature of the outer coil is greater than a preset second temperature threshold, or the defrost time is equal to a preset third defrost time threshold, controlling the compression module to operate at the first defrost frequency; When the defrost time is equal to a preset fourth defrost time threshold, changing the flow direction of the refrigerant again so that the refrigerant flows from the condenser to the evaporator; When the defrost time is equal to a preset fifth defrost time threshold, the second fan is controlled to start, and the compression module is controlled to stop defrosting.

8. A control device for a greenhouse temperature control system, characterized in that: The temperature regulating system comprises a compression module, a temperature regulating water pump, a temperature regulating pipeline and a first fan, and the control device comprises: An environmental detection component, used to obtain the temperature in the shed and the temperature of the first fluid, wherein the temperature of the first fluid refers to the temperature of the heat-carrying fluid when it flows into the compression module; A first processing component, configured to control the compression module to perform heating at a first heating power when the temperature in the greenhouse is lower than a preset first heating environment temperature threshold; a mode detection component, configured to obtain an operation mode of the temperature regulation system, and when the operation mode is a first control mode, the temperature in the greenhouse is greater than a preset second heating environment temperature threshold, and the first fluid temperature is greater than a preset first heating fluid temperature threshold, control the compression module to perform heating at a second heating power, wherein the second heating power is less than the first heating power; The second processing component is used to obtain the first heating time of the compression module for heating at the second heating power, and when the first heating time is equal to the preset first constant temperature time threshold, the temperature in the greenhouse and the first fluid temperature are obtained again, and when the temperature in the greenhouse is lower than the preset third heating environment temperature threshold, or the first fluid temperature is lower than the preset second heating fluid temperature threshold, the compression module is controlled to heat at the first heating power.

9. An electronic device, characterized in that: The electronic device includes a memory and a processor, the memory stores a computer program, and the processor implements the control method of the greenhouse temperature control system as described in any one of claims 1 to 7 when executing the computer program.

10. A storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the control method of the greenhouse temperature control system as described in any one of claims 1 to 7 is implemented.

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