Facility ecological circulating substrate cultivation method, device, electronic equipment and storage medium

Abstract

The application provides a facility ecological circulating substrate cultivation method and device, electronic equipment and storage medium, and belongs to the technical field of agricultural cultivation, and comprises the following steps: obtaining a fermentation temperature of a fermentation compost layer and a cultivation temperature of a cultivation substrate layer; controlling start-stop and / or ventilation amount of a ventilation device based on the fermentation temperature; if the fermentation temperature is higher than a first temperature threshold, starting a heat storage and release module to store excess heat generated by the fermentation compost layer; and if the cultivation temperature is lower than a second temperature threshold, delivering the stored heat to the cultivation substrate layer. The application uses heat generated by fermentation of the fermentation compost layer to supply heat to the cultivation substrate layer, stores excess heat in the fermentation process through the heat storage and release module, and releases heat when the temperature of the cultivation substrate layer is insufficient, so that the temperature of the cultivation substrate layer can be regulated, and the problems of high operation energy consumption and high production cost caused by dependence on external energy in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural cultivation technology, in particular to a facility ecological recycling substrate cultivation method, device, electronic equipment and storage medium. BACKGROUND

[0002] Substrate cultivation is a common cultivation mode in current facility vegetable production. The existing technology for loading substrate generally has modes such as pot type, groove type and bag type. Due to the reasons such as that the substrate cultivation device is independent, the particle size of the substrate component used for cultivation is large, the bulk density is low, and the substrate porosity is large, the substrate cultivation is easily affected by the external environment, resulting in large temperature fluctuation inside the cultivation substrate. Especially in the winter and summer cultivation seasons, low temperature and high temperature may have irreversible influence on the root development and physiological growth of the substrate cultivation crops. Therefore, some technologies bury the cultivation device half into the facility soil to reduce the influence of external environment fluctuation on substrate cultivation by using the heat storage and heat conduction characteristics of the soil. However, this method cannot actively change the cultivation system to cope with the fluctuation of the air environment, and once extreme weather is encountered, it will still harm the substrate cultivation crops. Some technologies use electric heating, solar heating and other active heating methods to cope with the influence of low temperature weather on substrate cultivation crops, but the investment and energy consumption of this technology are high. China has abundant agricultural and forestry waste resources, and the ecological recycling and efficient utilization of agricultural and forestry waste is also the key to the green and high-quality development of agriculture. The conventional treatment technology of agricultural and forestry waste resource utilization is to use the waste as fertilizer and substrate after fermentation, which has high energy consumption, long cycle, and is easy to produce heat, odor and harmful gases, resulting in secondary pollution. Therefore, there is an urgent need for a substrate cultivation method that can directly and cleanly utilize agricultural and forestry waste to realize the ecological recycling and efficient utilization of agricultural and forestry waste. Therefore, a facility ecological recycling substrate cultivation and control method is provided, which realizes temperature control without relying on external heating by the heat storage and heat preservation of the cultivation tank body itself, in combination with the matching cultivation mode, cultivation system and cultivation management, which is beneficial to reduce the temperature stress of the cultivated crops and improve the active adaptation to the fluctuation of the external low temperature / high temperature environment, and provides technical support for the ecological recycling and efficient utilization of agricultural and forestry waste, and the healthy growth and green production of crops. SUMMARY

[0003] The present application provides a facility ecological recycling substrate cultivation method, device, electronic equipment and storage medium to solve the defects of high energy consumption and high production cost in the prior art.

[0004] The application provides a facility ecological circulating substrate cultivation method, which is applied to a facility ecological circulating substrate cultivation system, and the facility ecological circulating substrate cultivation system comprises a fermentation composting layer, a cultivation substrate layer, a ventilation device, a heat storage and release module and a temperature sensor; the cultivation method comprises the following steps:

[0005] obtaining a fermentation temperature of the fermentation composting layer and a cultivation temperature of the cultivation substrate layer monitored by the temperature sensor;

[0006] controlling start-stop and / or ventilation amount of the ventilation device based on the fermentation temperature, so as to adjust a fermentation heat production process of the fermentation composting layer;

[0007] if the fermentation temperature is higher than a first temperature threshold, starting a heat collection function of the heat storage and release module, so as to store excess heat generated by the fermentation composting layer;

[0008] if the cultivation temperature is lower than a second temperature threshold, starting a heat release function of the heat storage and release module, so as to deliver the heat stored by the heat storage and release module to the cultivation substrate layer.

[0009] According to the facility ecological circulating substrate cultivation method provided by the application, the control of the start-stop and / or ventilation amount of the ventilation device based on the fermentation temperature specifically comprises:

[0010] starting the ventilation device or increasing the ventilation amount when it is determined that the fermentation temperature is lower than a third temperature threshold;

[0011] obtaining a second fermentation temperature, which is the temperature of the fermentation composting layer detected by the temperature sensor after starting the ventilation device or increasing the ventilation amount;

[0012] when the second fermentation temperature is higher than a fourth temperature threshold and not higher than the first temperature threshold, reducing the ventilation amount of the ventilation device;

[0013] when the second fermentation temperature is higher than the first temperature threshold, stopping the ventilation device;

[0014] the third temperature threshold is less than the fourth temperature threshold, and the fourth temperature threshold is less than the first temperature threshold.

[0015] The facility ecological circulating substrate cultivation method provided by the application further comprises:

[0016] obtaining a heat storage medium temperature of the heat storage and release module;

[0017] if the heat storage medium temperature is higher than a preset upper limit temperature before or during the execution of the heat collection function, the heat collection function of the heat storage and release module is closed;

[0018] Before or during the execution of the heat release function, if the temperature of the heat storage medium is lower than a preset lower limit temperature, the heat release function of the heat storage and release module is closed.

[0019] According to the facility ecological cycle substrate cultivation method provided by the present application, the starting of the heat collection function of the heat storage and release module or the starting of the heat release function of the heat storage and release module comprises:

[0020] The medium circulation device is started to drive the heat storage medium of the heat storage and release module to circulate between the heat storage and release module and the heat exchange position;

[0021] When the heat collection function of the heat storage and release module is started, the heat exchange position is the fermentation and composting layer.

[0022] When the heat release function of the heat storage and release module is started, the heat exchange position is the cultivation substrate layer.

[0023] According to the facility ecological cycle substrate cultivation method provided by the present application, the facility ecological cycle substrate cultivation method further comprises:

[0024] Based on a preset sampling frequency, the fermentation temperature and the cultivation temperature are obtained.

[0025] The fermentation temperature and the cultivation temperature are input into a temperature prediction model, and a temperature prediction result output by the temperature prediction model is obtained, the temperature prediction model being obtained by training a time series model based on historical fermentation temperatures and historical cultivation temperatures, and the temperature prediction result including a temperature change trend of the fermentation temperature and the cultivation temperature within a preset time.

[0026] The preposition time for starting the heat collection function or the heat release function of the heat storage and release module is determined according to the temperature change trend.

[0027] Based on the preposition time, the heat collection function or the heat release function of the heat storage and release module is started to be executed.

[0028] According to the facility ecological cycle substrate cultivation method provided by the present application, the facility ecological cycle substrate cultivation method further comprises:

[0029] Based on a preset sampling frequency, the fermentation temperature and the cultivation temperature are obtained.

[0030] The fermentation temperature and the cultivation temperature are input into a temperature prediction model, and a temperature prediction result output by the temperature prediction model is obtained, the temperature prediction model being obtained by fitting a polynomial function based on historical fermentation temperatures and historical cultivation temperatures, and the temperature prediction result including a temperature change trend of the fermentation temperature and the cultivation temperature within a preset time.

[0031] determine a pre-time for starting the heat collection function or the heat release function of the heat storage and release module according to the temperature change trend;

[0032] start the heat collection function or the heat release function of the heat storage and release module according to the pre-time.

[0033] According to the facility ecological cycle substrate cultivation method provided by the application, the method further comprises:

[0034] obtain an environment parameter, wherein the environment parameter comprises at least one of an environment temperature, an illumination intensity and an air humidity;

[0035] determine the first temperature threshold and / or the second temperature threshold in real time based on the environment parameter.

[0036] According to the facility ecological cycle substrate cultivation method provided by the application, the method further comprises that the second temperature threshold is less than the first temperature threshold.

[0037] According to the facility ecological cycle substrate cultivation method provided by the application, the method further comprises:

[0038] obtain a water content of the fermentation and composting layer;

[0039] if the water content is lower than a lower limit value of the water content, control an irrigation system to supplement water to the fermentation and composting layer until the water content is not lower than the lower limit value of the water content.

[0040] According to the facility ecological cycle substrate cultivation method provided by the application, the method further comprises:

[0041] obtain a type of cultivated crop;

[0042] determine the first temperature threshold and / or the second temperature threshold according to a preset optimum root zone temperature range corresponding to the type of cultivated crop.

[0043] The application further provides a facility ecological cycle substrate cultivation device, comprising:

[0044] a cultivation tank, inside which a fermentation and composting layer and a cultivation substrate layer are laid;

[0045] a temperature sensor, which is arranged in the fermentation and composting layer and the cultivation substrate layer;

[0046] an aeration device, which is used for supplying air to the fermentation and composting layer;

[0047] a heat storage and release module, which is used for exchanging heat with the fermentation and composting layer and the cultivation substrate layer;

[0048] a controller, which is electrically connected with the temperature sensor, the aeration device and the heat storage and release module, and comprises:

[0049] a temperature acquisition unit configured to acquire a fermentation temperature of the fermentation compost layer and a cultivation temperature of the cultivation substrate layer monitored by the temperature sensor;

[0050] a fermentation control unit configured to control the start-stop and / or air volume of the aeration device based on the fermentation temperature to regulate the fermentation heat production process of the fermentation compost layer;

[0051] a heat control unit configured to start the heat storage function of the heat storage and release module to store the excess heat generated by the fermentation compost layer if the fermentation temperature is higher than a first temperature threshold, and start the heat release function of the heat storage and release module to deliver the stored heat of the heat storage and release module to the cultivation substrate layer if the cultivation temperature is lower than a second temperature threshold.

[0052] The present application also provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the facility ecological cycle substrate cultivation method according to any one of the above when executing the program.

[0053] The present application also provides a non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program is executable on a processor to implement the facility ecological cycle substrate cultivation method according to any one of the above.

[0054] The present application also provides a computer program product comprising a computer program, wherein the computer program is executable on a processor to implement the facility ecological cycle substrate cultivation method according to any one of the above.

[0055] The facility ecological cycle substrate cultivation method provided by the present application utilizes the heat generated by the fermentation of the fermentation compost layer to provide heat for the cultivation substrate layer, and stores the excess heat generated during the fermentation process through the heat storage and release module, and releases heat when the temperature of the cultivation substrate layer is insufficient, thereby achieving temperature regulation of the cultivation substrate layer and solving the problem of high operating energy consumption and high production cost caused by reliance on external energy in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0056] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0057] Figure 1 is one of the process schematic diagrams of the facility ecological cycle substrate cultivation method provided by the present application.

[0058] Figure 2 is one of flowcharts provided by the present application for starting the heat collecting function or heat releasing function of the heat storage and release module.

[0059] Figure 3 is another one of flowcharts provided by the present application for starting the heat collecting function or heat releasing function of the heat storage and release module.

[0060] Figure 4 is one of structural schematic diagrams of the facility ecological circulation substrate cultivation device provided by the present application.

[0061] Figure 5 is another one of structural schematic diagrams of the facility ecological circulation substrate cultivation device provided by the present application.

[0062] Figure 6 is another one of structural schematic diagrams of the facility ecological circulation substrate cultivation device provided by the present application.

[0063] Figure 7 is another one of flowcharts of the facility ecological circulation substrate cultivation method provided by the present application.

[0064] Figure 8 is a structural schematic diagram of the electronic device provided by the present application.

[0065] Cultivation tank 1; ventilation device 2; heat preservation layer 3; heat storage and release module 4; controller 5; supporting leg 6; lifting device 7; cover plate 8; cultivation hole 9; gauze 10; layer height plate 11; air pump 12; ventilation pipeline 13; ventilation hole 14; hollow cavity 15; temperature sensor 16; heat collecting and releasing pipeline 17; heat collecting and releasing hole 18; fermentation energy layer 19; fermentation excitation layer 20; cultivation substrate layer 21; filtration and drainage layer 22. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0067] It should be noted that in the description of the embodiments of the present application, the terms "comprising", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. The terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the systems or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] The terms "first", "second", and the like used in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0069] The following will be described in conjunction with Figures 1-8 The facility ecological cycle substrate cultivation method, device, electronic equipment and storage medium provided by the present application are described.

[0070] Figure 1 is one of the flowcharts of the facility ecological cycle substrate cultivation method provided by the present application, as Figure 1 shown, the execution subject of the facility ecological cycle substrate cultivation method provided by the present application can be the controller of the facility ecological cycle substrate cultivation system, and in the subsequent embodiments, the controller is taken as an example for description without special description.

[0071] As an optional embodiment, the facility ecological circulating substrate cultivation method is applied to a facility ecological circulating substrate cultivation system, which comprises a fermentation composting layer, a cultivation substrate layer, an aeration device, a heat storage and release module, and a temperature sensor. The cultivation method mainly comprises the following steps:

[0072] In step 110, the fermentation temperature of the fermentation composting layer and the cultivation temperature of the cultivation substrate layer monitored by the temperature sensor are obtained.

[0073] The fermentation composting layer is mainly used to generate biological heat energy through fermentation, and is mainly composed of organic waste that can undergo aerobic fermentation, for example, crushed corn stalks, straw, wheat stalks, etc. can be mixed with fermentation priming layer (such as cow dung, sheep dung, chicken dung, etc.) in a certain proportion and laid.

[0074] The cultivation substrate layer refers to the area above the fermentation composting layer, which is used for planting crops and providing support, nutrients, water, and air for the growth of root systems, for example, the cultivation substrate layer can be made of one or more of coconut husk, perlite, vermiculite, and grass charcoal.

[0075] Considering that without temperature monitoring, the heat production state of the fermentation composting layer and the actual temperature of the cultivation substrate layer cannot be accurately known, resulting in the inability to accurately and actively control the facility ecological circulating substrate cultivation device, therefore, the temperature sensor is disposed inside the fermentation composting layer and the cultivation substrate layer, so that the temperature data can be obtained in real time and accurately, which provides certain decision basis for subsequent automatic and intelligent control based on temperature threshold.

[0076] The temperature sensor can be a probe type temperature sensor packaged in a stainless steel probe to adapt to the high humidity and heat environment inside the fermentation composting layer and the cultivation substrate layer. The core temperature measuring element can be selected from K-type thermocouple, resistance temperature detector (RTD), high-precision negative temperature coefficient (NTC) thermistor, or integrated digital temperature sensor that can directly output digital signal. These sensors have good stability and suitable measurement accuracy, and the signal cables drawn therefrom are made of waterproof or corrosion-resistant materials to ensure long-term reliable operation.

[0077] It should be noted that the controller is electrically connected with the temperature sensor, so as to periodically or continuously receive the measurement signal from the temperature sensor. If the sensor output is an analog signal, the controller can perform analog-to-digital conversion to obtain a digitized temperature value. The controller will obtain the fermentation temperature and cultivation temperature data as the direct input basis for subsequent fermentation control and heat regulation, and provide a decision basis for subsequent heat control and management.

[0078] In step 120, based on the fermentation temperature, the start and stop of the aeration device and / or the aeration amount are controlled to regulate the fermentation heat production process of the fermentation compost layer.

[0079] Considering that in the natural accumulation state of the fermentation compost layer, the internal part, especially the deep layer area, is prone to oxygen deficiency due to material compaction, which affects the efficiency of aerobic fermentation of microorganisms, and further leads to unstable or low-efficiency heat production, the present application can actively transport air to the internal part of the fermentation compost layer by using a gas pump through the aeration pipeline by setting an aeration device, so as to ensure that the fermentation compost layer obtains continuous and sufficient oxygen supply, maintains a high-efficiency and stable fermentation heat production process, and changes the heat production rate from passive to controllable, thereby providing a reliable and controllable heat source for the temperature regulation function of the entire facility ecological cycle substrate cultivation device.

[0080] The gas pump can be a micro gas pump, an electromagnetic gas pump or a vortex gas pump, the selection of which can be determined according to the volume of the cultivation tank and the required air supply of the fermentation compost layer.

[0081] The aeration pipeline can be a hard pipeline or a hose made of corrosion-resistant materials such as polyvinyl chloride (PVC) and polyethylene (PE), and a plurality of aeration holes are uniformly arranged on the pipe wall of the part extending into the fermentation compost layer, so as to uniformly distribute air to each area of the fermentation material.

[0082] The start and stop of the aeration device can be realized by controlling the on-off of the relay connected in series with the power supply line of the gas pump through the controller. For example, when the controller determines that the aeration needs to be started, it outputs a control signal (such as a high-level signal) to the control end of the relay, so that the relay is closed, thereby connecting the power supply circuit of the gas pump and starting the gas pump; on the contrary, another control signal (such as a low-level signal) is outputted, so that the relay is disconnected and the gas pump stops running.

[0083] The air volume of the air supply device can be controlled by adjusting the total air supply time per unit time or changing the operating power of the air pump. For example, the controller can control the speed of the air pump by pulse width modulation (PWM) to directly adjust the air volume; or the controller can indirectly control the total air volume by setting different air supply times (such as 5 minutes, 10 minutes or 20 minutes) in a fixed control period (such as 30 minutes).

[0084] Based on the fermentation temperature, the start-stop and / or air volume of the air supply device is controlled, which means that the controller compares the real-time detected fermentation temperature with the preset temperature target range, and executes the corresponding control strategy according to the comparison result. For example, a suitable temperature range (such as 25-35℃) can be set for aerobic fermentation. When the detected fermentation temperature is lower than the lower limit of the range (such as 25℃), it indicates that the fermentation activity is insufficient, and the controller starts the air supply device or increases the air volume to increase the oxygen supply and promote the fermentation temperature; when the detected fermentation temperature is higher than the upper limit of the range (such as 35℃), it indicates that the fermentation is too intense, which may inhibit the activity of beneficial microorganisms, and the controller stops the air supply or reduces the air volume to limit the oxygen supply and control the fermentation rate, so that the fermentation temperature is stabilized in the suitable temperature range.

[0085] In step 130, if the fermentation temperature is higher than the first temperature threshold, the heat storage function of the heat storage and release module is started to store the excess heat generated by the fermentation composting layer; if the cultivation temperature is lower than the second temperature threshold, the heat release function of the heat storage and release module is started to deliver the stored heat of the heat storage and release module to the cultivation substrate layer.

[0086] The heat storage and release module refers to a component for storing and releasing heat energy. As an optional embodiment, the heat storage and release module can include a hollow cavity filled with a heat storage medium (such as water or phase change material). A heat collection and dispersion pipeline is connected to the hollow cavity to create a more direct and efficient heat exchange circuit for the heat storage medium.

[0087] For example, a part of the heat collection and dispersion pipeline can be laid in the fermentation composting layer in the form of coil, S-shaped bending or parallel arrangement as a heat collection pipe section to maximize the contact with the fermentation material and efficiently absorb the heat generated by fermentation; at the same time, another part of the heat collection and dispersion pipeline is also laid in the cultivation substrate layer in the form of coil, S-shaped bending or parallel arrangement as a heat dispersion pipe section to accurately release the absorbed or stored heat to the area where the crop roots are located. In this way, the heat collection and dispersion pipeline establishes a direct and efficient heat transfer channel between the fermentation composting layer and the cultivation substrate layer in the cultivation tank.

[0088] As an optional embodiment, the facility ecological circulation substrate cultivation method provided by the present application is in operation, the fermentation compost layer laid at the bottom of the cultivation tank continuously performs biological fermentation and generates heat. The heat is directly transmitted upward to provide the upper cultivation substrate layer with a basic temperature required for growth.

[0089] On the other hand, when the heat generated by aerobic fermentation is relatively large, resulting in a fermentation temperature of the fermentation compost layer being higher than the first temperature threshold (for example, 40℃), the heat storage and release module can be started to store heat, that is, by starting the medium circulating device (for example, a water pump), the heat storage medium (for example, water) in the heat collecting and dissipating pipe is driven to circulate. The low-temperature heat storage medium flowing through the heat collecting pipe section in the fermentation compost layer absorbs the excess heat generated by fermentation and is heated, and then carries the heat to the hollow cavity of the heat storage and release module for storage, thereby absorbing and storing the excess heat. The heat storage and release module acts as a heat buffer zone, which can to some extent avoid the stress on the crop root system caused by the excessive heat generated by fermentation in the cultivation substrate layer.

[0090] Further, when the ambient temperature decreases or the heat generation efficiency of the fermentation compost layer decreases, resulting in a cultivation temperature of the cultivation substrate layer being lower than the second temperature threshold (for example, 10℃), the heat release function of the heat storage and release module can be started, that is, by starting the medium circulating device, the heat storage medium with relatively high heat stored in the heat storage and release module is delivered to the heat dissipating pipe section laid in the cultivation substrate layer. The heat storage medium transmits heat to the cultivation substrate layer with a lower temperature through the heat dissipating pipe section to increase the temperature of the cultivation substrate layer.

[0091] Through the heat interaction between the fermentation compost layer, the cultivation substrate layer and the heat storage and release module, the facility ecological circulation substrate cultivation method provided by the present application realizes self-regulation of temperature and can provide a more stable and suitable temperature environment for the crop root system without relying on external energy.

[0092] The facility ecological circulation substrate cultivation method provided by the present application uses the heat generated by fermentation of the fermentation compost layer to supply heat to the cultivation substrate layer, and stores the excess heat in the fermentation process through the heat storage and release module, and releases heat when the temperature of the cultivation substrate layer is insufficient, thereby realizing temperature regulation of the cultivation substrate layer and solving the problem of high operating energy consumption and high production cost caused by reliance on external energy in the prior art.

[0093] In another embodiment provided by the present application, the start and stop of the ventilation device and / or the ventilation amount are controlled based on the fermentation temperature, specifically including:

[0094] start the aeration device or increase the aeration amount; obtain a second fermentation temperature, the second fermentation temperature being the temperature of the fermentation mat layer detected by the temperature sensor after starting the aeration device or increasing the aeration amount; when the second fermentation temperature is higher than a fourth temperature threshold and not higher than the first temperature threshold, reduce the aeration amount of the aeration device; when the second fermentation temperature is higher than the first temperature threshold, stop the aeration device; the third temperature threshold is less than the fourth temperature threshold, and the fourth temperature threshold is less than the first temperature threshold.

[0095] For example, the third temperature threshold can be set to 25℃, the fourth temperature threshold can be set to 35℃, and the first temperature threshold can be set to 40℃. When the controller detects that the fermentation temperature is lower than 25℃, indicating that the fermentation activity is insufficient, the aeration device is started to run at maximum power to promote rapid temperature rise. As the fermentation temperature rises, when the controller detects that the second fermentation temperature has reached 36℃ (i.e. higher than 35℃ but not higher than 40℃), it is judged that the fermentation has entered the stable temperature rise stage, at which time the aeration amount of the aeration device can be reduced (for example, by reducing the running power of the air pump or shortening the aeration time per unit time) to continue to supply oxygen to rise in a more moderate manner. If the fermentation reaction is intense, the temperature continues to rise and exceeds 40℃, the controller completely stops the aeration device to prevent the temperature from being too high; at the same time, the fermentation temperature exceeding 40℃ also triggers the heat collection function described in the foregoing embodiment.

[0096] Considering that only a simple aeration device start-stop control strategy is adopted, it is easy to cause the fermentation temperature to fluctuate dramatically around the target value, which not only affects the stability of the fermentation heat production, but also can cause the aeration device to be frequently started and stopped, increasing energy consumption. Therefore, the present application adds a fourth temperature threshold to build a buffer adjustment zone (i.e. the interval between the fourth temperature threshold and the first temperature threshold). Thus, the aeration amount can be adjusted in stages and in a refined manner. When the temperature enters the buffer adjustment zone, the aeration amount is reduced in advance, effectively inhibiting the inertia of temperature rise and avoiding temperature overshoot, so that the entire fermentation heat production process is more stable and controllable, improving energy utilization efficiency and control accuracy.

[0097] The facility ecological cycle substrate cultivation method provided by the present application realizes phased and refined regulation and control of the operation of the aeration device by setting the third temperature threshold, the fourth temperature threshold and the first temperature threshold, which can effectively avoid the temperature fluctuations and overshoot phenomenon caused by simple start-stop control, making the heat production process of the fermentation mat layer more stable and controllable, and thereby improving the stability and accuracy of the entire heat source regulation.

[0098] In another embodiment provided by the present application, further comprising: obtaining the temperature of the heat storage medium of the heat storage and release module; before or during the heat collection function is performed, if the temperature of the heat storage medium is higher than the preset upper limit temperature, the heat collection function of the heat storage and release module is closed; before or during the heat release function is performed, if the temperature of the heat storage medium is lower than the preset lower limit temperature, the heat release function of the heat storage and release module is closed.

[0099] If the state of the heat storage and release module itself is not monitored, invalid heat scheduling may occur. For example, when the temperature of the heat storage medium in the heat storage and release module has approached or is higher than the temperature of the fermentation compost layer, the heat collection function is started again, and the heat exchange efficiency is extremely low, and even the heat cannot be collected, causing the medium circulating device to idle and wasting energy; similarly, when the temperature of the heat storage medium has approached or is lower than the temperature of the cultivation substrate layer, the heat release function cannot be effectively started. Therefore, the present application adds a temperature sensor in the heat storage and release module, and introduces secondary judgment logic based on the temperature of the heat storage medium, to check the effectiveness of the heat collection and release instructions, so as to avoid invalid energy consumption and ensure that the heat exchange is started only when there is an effective temperature difference and efficient heat transfer can be performed, thereby making the heat regulation decision more complete and robust.

[0100] For example, the preset upper limit temperature of the heat storage medium can be set to 38℃, and the preset lower limit temperature can be set to 12℃. When the fermentation temperature reaches 40℃, but the controller detects that the temperature of the heat storage medium is 39℃ (higher than 38℃), the heat storage and release module will not start the medium circulating device for heat collection, and the controller will directly control the heat production of the fermentation compost layer by stopping or reducing the ventilation amount of the ventilation device, so as to inhibit the fermentation rate and prevent the temperature from being too high. Further, when the cultivation temperature of the cultivation substrate layer decreases to 10℃, but the controller detects that the temperature of the heat storage medium is only 11℃ (lower than 12℃), the heat storage and release module will not start the heat release function, but will start or increase the ventilation amount of the ventilation device to promote the fermentation compost layer to heat up, so as to use the newly generated biological heat energy to directly conduct heat upward to supply heat to the cultivation substrate layer and supplement the heat source for the heat storage and release module, thereby avoiding invalid energy consumption.

[0101] The facility ecological cycle substrate cultivation method provided by the present application can avoid invalid heat scheduling when the heat exchange condition is not met by adding a judgment step of the temperature of the heat storage medium of the heat storage and release module before the heat collection or heat release instruction is executed, thereby preventing energy waste caused by the medium circulating device idling and making the whole temperature regulation process more efficient and intelligent.

[0102] In another embodiment provided by the present application, the method for starting the heat collection function or the heat release function of the heat storage and release module comprises: starting a medium circulation device to drive the heat storage medium of the heat storage and release module to flow between the heat storage and release module and a heat exchange position; when the heat collection function of the heat storage and release module is started, the heat exchange position is the fermentation and composting layer; when the heat release function of the heat storage and release module is started, the heat exchange position is the cultivation substrate layer.

[0103] For example, the medium circulation device can be a micro water pump controlled by the controller, the water inlet of the micro water pump is connected with the heat storage and release module, and the water outlet is connected with the heat collection pipe section laid in the fermentation and composting layer and the heat dissipation pipe section laid in the cultivation substrate layer through a valve system. When the heat collection function is started, the controller starts the water pump and controls the valve to guide the water flow to the fermentation and composting layer as the heat exchange position. At this time, the low-temperature heat storage medium (such as water) in the heat storage and release module is pumped into the heat collection pipe section, and returns to the heat storage and release module after absorbing the fermentation heat. When the heat release function is started, the controller also starts the water pump, but controls the valve to switch the water flow to the cultivation substrate layer as the heat exchange position. At this time, the high-temperature heat storage medium in the heat storage and release module is pumped into the heat dissipation pipe section, and returns to the heat storage and release module after releasing heat to the cultivation substrate, so that the heat scheduling for different heat exchange positions is realized.

[0104] The method for facility ecological recycling substrate cultivation provided by the present application can provide an explicit and active physical implementation path for heat scheduling by specificizing the abstract heat collection and release functions into starting the medium circulation device to drive the heat storage medium to circulate in the specified heat exchange position, so that the heat can be transported between different functional layers in a targeted and efficient manner according to the needs.

[0105] Figure 2 is one of the flowcharts for starting the heat collection function or the heat release function of the heat storage and release module provided by the present application, as shown in Figure 2 As another optional embodiment provided by the present application, the method for facility ecological recycling substrate cultivation further comprises but is not limited to the following steps:

[0106] In step 210, the fermentation temperature and the cultivation temperature are obtained based on a preset sampling frequency.

[0107] For example, the controller can set a fixed sampling period, such as every 5 minutes, and obtain the current fermentation temperature and cultivation temperature once, and take these measurement data with time stamp as the historical temperature sequence.

[0108] In step 220, the fermentation temperature and the cultivation temperature are input into a temperature prediction model to obtain a temperature prediction result output by the temperature prediction model; the temperature prediction model is obtained by training a time series model based on the historical fermentation temperature and the historical cultivation temperature; and the temperature prediction result comprises the temperature variation trend of the fermentation temperature and the cultivation temperature within a preset time.

[0109] For example, the temperature prediction model can be a pre-trained Long Short-Term Memory (LSTM) model. The LSTM model has learned the heat inertia law in the processes of fermentation heat production, substrate heat preservation and heat exchange by learning a large amount of historical temperature data (for example, a temperature change sequence in different environmental conditions in the past few weeks). In actual operation, the controller inputs the latest historical temperature sequence (for example, 12 sampling point data in the past 60 minutes) into the LSTM model, and the LSTM model can output a temperature prediction result, which can be expressed as a temperature curve in a preset time period (such as the next 30 minutes) in the future, or directly give a clear temperature change trend, such as “the predicted fermentation temperature will rise at a rate of 3°C per hour”.

[0110] Step 230, determining the pre-time for starting the heat collection function or the heat release function of the heat storage and release module according to the temperature change trend.

[0111] For example, if the temperature prediction result shows that the current cultivation temperature is 12°C and is decreasing at a stable rate of 1°C per hour, and the second temperature threshold is 10°C. At the same time, it is assumed that there is a system response delay of about 30 minutes from starting the heat release function to the temperature of the cultivation substrate layer starting to effectively rise. In order to prevent the temperature from falling below the threshold, the controller can take this response delay time as the basis and additionally add a safety margin (such as 30 minutes) to determine the pre-time as 60 minutes. This means that the facility ecological circulating substrate cultivation system needs to start the heat release function about 1 hour before the temperature actually drops to 10°C.

[0112] Step 240, starting the heat storage and release module to execute the heat collection function or the heat release function based on the pre-time.

[0113] For example, after determining the pre-time of 60 minutes, the controller will start the medium circulating device to execute the heat release function when the cultivation temperature drops to 11°C, instead of being passively responsive when the temperature drops to 10°C. Similarly, if it is predicted that the fermentation temperature will exceed the first temperature threshold (such as 40°C) in 45 minutes, the controller can also start the heat collection function based on a preset pre-time (such as 30 minutes). Through this active control based on prediction and pre-time, the physical delay and heat inertia of the facility ecological circulating substrate cultivation system can be effectively overcome, and more accurate and smooth regulation of the root zone temperature environment can be achieved.

[0114] The facility ecological circulation substrate cultivation method provided by the present application can overcome the thermal inertia and response delay of the system, avoid the temperature overshoot or lag caused by passive regulation, and thus improve the temperature control from passive response to active prediction, so as to achieve more accurate and smooth regulation effect.

[0115] Figure 3 is a flowchart of starting the heat collection function or heat release function of the heat storage and release module provided by the present application, as shown in Figure 3 As another optional embodiment of the present application, the facility ecological circulation substrate cultivation method further includes but is not limited to the following steps:

[0116] In step 310, the fermentation temperature and the cultivation temperature are obtained based on the preset sampling frequency.

[0117] In step 320, the fermentation temperature and the cultivation temperature are input into the temperature prediction model to obtain the temperature prediction result output by the temperature prediction model; the temperature prediction model is obtained by fitting a polynomial function based on the historical fermentation temperature and the historical cultivation temperature; and the temperature prediction result includes the temperature change trend of the fermentation temperature and the cultivation temperature within a preset time.

[0118] In step 330, the preposition time for starting the heat collection function or the heat release function of the heat storage and release module is determined according to the temperature change trend.

[0119] In step 340, the heat storage and release module is started to execute the heat collection function or the heat release function based on the preposition time.

[0120] For example, the temperature prediction model can be a dynamically updated polynomial function. Specifically, the controller can use the latest historical temperature sequence (for example, 6 temperature data points collected in the past 30 minutes) to fit a second-order or third-order polynomial function that best represents the current temperature change trend in real time through regression analysis algorithms such as the Least Squares Method, such as T(t)=at 2 +bt+c, where T is the temperature and t is the time. Once the coefficients a, b, and c of the function are determined, the controller can infer the temperature value at a future time point (such as 15 minutes later) through the polynomial function, and compare it with the current temperature value to obtain a specific temperature change trend (such as an expected temperature rise of 1.5℃ within 15 minutes). Compared with complex models that need to be trained in advance, this polynomial fitting-based method has smaller calculation amount, lower requirement for the computing power of the controller, and is suitable for embedded controllers with limited computing resources, and can realize rapid prediction of temperature change at a lower cost.

[0121] The facility ecological circulation substrate cultivation method provided by the present application can realize predictive control while providing a lightweight implementation scheme with small calculation amount and low requirement for controller hardware resources, thereby reducing the cost and technical threshold of deploying the advanced function.

[0122] In another embodiment provided by the present application, the facility ecological circulation substrate cultivation method further comprises: obtaining an environmental parameter, the environmental parameter comprising at least one of an environmental temperature, an illumination intensity, and an air humidity; and determining the first temperature threshold and / or the second temperature threshold in real time based on the environmental parameter.

[0123] For example, in addition to connecting the temperature sensor inside the substrate cultivation system, the controller can also connect the environmental temperature sensor and the illumination intensity sensor deployed in the greenhouse or the greenhouse. The controller is preconfigured with a set of dynamic adjustment rules or a mapping function, which associates the corresponding relationship between the environmental parameters and the temperature threshold.

[0124] In one case, when the controller detects that the environmental temperature drops sharply at night (for example, below 5℃) and the illumination intensity is zero, the substrate cultivation system determines that it is currently in a high-risk period of cold wave and other low-temperature stress. In order to more actively keep the cultivation substrate layer warm, the controller will automatically raise the second temperature threshold for starting the heat release function from the regular 10℃ to 12℃. In this way, the substrate cultivation system will start the heat release function earlier, and supplement the heat to the crop root zone in advance to cope with the rapid temperature drop of the external environment.

[0125] In another case, when the controller detects that the environmental temperature is very high (for example, higher than 30℃) and the illumination is strong at noon in summer, in order to avoid the superposition of the heat of the fermentation composting layer and the environmental heat to cause damage to the crop root system, the controller will automatically lower the first temperature threshold for starting the heat collection function from the regular 40℃ to 38℃. In this way, the substrate cultivation system will start the heat collection function earlier, and store the excess heat generated by fermentation in time, which has the effect of actively cooling the substrate cultivation system. In this way, the control strategy of the present application is no longer fixed, but can intelligently adapt to changes in the external environment, thereby significantly improving the robustness and precision of temperature regulation of the substrate cultivation system.

[0126] The facility ecological circulation substrate cultivation method provided by the present application can make the control strategy of the substrate cultivation system no longer fixed, but can intelligently predict and adapt to changes in the external climate, thereby significantly improving the precision and robustness of temperature regulation in complex and variable environments.

[0127] In another embodiment provided by the present application, the facility ecological circulation substrate cultivation method further comprises: the second temperature threshold is less than the first temperature threshold.

[0128] If the second temperature threshold is greater than or equal to the first temperature threshold, it is possible that the heat collection and heat release instructions are triggered at the same time in a certain state. For example, assuming that the first temperature threshold (start heat collection) is 35℃, and the second temperature threshold (start heat release) is 36℃, when the fermentation temperature is 37℃ and the cultivation temperature is 34℃, the substrate cultivation system meets the heat collection condition (37℃>35℃) and the heat release condition (34℃<36℃) at the same time, which will cause the controller to be in logical confusion and unable to perform a clear operation, or cause the medium circulating device to be invalid between the heat collection and heat release circuits, wasting energy. Therefore, the present application clearly limits the second temperature threshold to be less than the first temperature threshold (for example, the first temperature threshold is 40℃, and the second temperature threshold is 10℃), thereby establishing a clear boundary between the excess heat and the required heat. Therefore, it is possible to fundamentally eliminate the possibility of logical conflict, and ensure that the substrate cultivation system is in only one of the heat collection, heat release or standby state at any time, ensuring the logical self-consistency and stability, reliability of the entire automatic temperature regulation strategy.

[0129] The facility ecological circulation substrate cultivation method provided by the present application can fundamentally avoid the substrate cultivation system triggering the heat collection and heat release instructions at the same time by setting the second temperature threshold for starting heat release to be less than the first temperature threshold for starting heat collection, thereby ensuring the self-consistency of the control logic, avoiding the invalid operation of the substrate cultivation system, and improving the stability and reliability of the entire temperature regulation strategy.

[0130] In another embodiment provided by the present application, the facility ecological circulation substrate cultivation method further comprises: obtaining the water content of the fermentation compost layer; if the water content is lower than the preset lower limit of the water content, controlling the irrigation system to supplement water to the fermentation compost layer until the water content is not lower than the lower limit of the water content.

[0131] For example, one or more soil moisture sensors can be deployed inside the fermentation composting layer, which are electrically connected with the controller for real-time monitoring of the moisture content of the fermentation material. A lower limit value of the moisture content required for maintaining efficient aerobic fermentation, for example 45%, is preset in the controller. When the controller detects that the moisture content is lower than 45%, it is determined that the fermentation material is too dry, which may lead to a decrease in microbial activity and a decrease in heat production efficiency. At this time, the controller outputs a control signal to open the electromagnetic valve connected in series with the water supply pipeline, and starts the irrigation system. The irrigation system can slowly and uniformly supplement water to the material through the water permeable pipe or drip irrigation tape laid in the fermentation composting layer. During the water supplementing process, the controller continuously monitors the moisture content, and when the moisture content rises to the lower limit value (or a slightly higher target value, such as 48%), the controller closes the electromagnetic valve and stops water supply. In this way, the aerobic fermentation process is ensured not to be interrupted due to lack of water, and a stable and continuous biological heat source is provided for the entire substrate cultivation system.

[0132] The facility ecological cycle substrate cultivation method provided by the present application can ensure that the aerobic fermentation process will not be interrupted due to drying of the material, thereby providing a stable and continuous biological heat source for the entire temperature regulation process and improving the reliability of the substrate cultivation system.

[0133] In another embodiment provided by the present application, the facility ecological cycle substrate cultivation method further comprises: obtaining the type of the cultivated crop; determining the first temperature threshold value and / or the second temperature threshold value according to the preset optimal root zone temperature range corresponding to the type of the cultivated crop.

[0134] For example, a crop selection menu can be preset on the control panel of the controller or the software interface matched therewith. The user can select according to the actual cultivated crop, and the memory in the controller stores a database recording the optimal root zone temperature range corresponding to a plurality of common crops (such as tomatoes, cucumbers, strawberries, and lettuce). When the user selects a crop, the controller automatically calls the temperature parameters corresponding to the crop and updates the first temperature threshold value and the second temperature threshold value accordingly.

[0135] Taking two crops with different habits as examples: if the user chooses to plant the warm-loving crop tomato, the optimal root zone temperature range of which is about 20-25℃, the controller can automatically set the second temperature threshold for starting heat release to 20℃ and the first temperature threshold for starting heat collection to 40℃. If the user replaces the warm-loving crop tomato with the cool-loving crop strawberry, the optimal root zone temperature range of which is about 15-20℃, the controller will automatically adjust the second temperature threshold to 15℃ and the first temperature threshold to 35℃. In this way, the application can provide customized and optimal root zone temperature management solutions for different cultivated crops, greatly improving the versatility and professionalism of the substrate cultivation system.

[0136] The facility ecological cycle substrate cultivation method provided by the application can automatically determine the key temperature control threshold according to the specific type of the cultivated crop, thereby providing customized and optimal root zone temperature management solutions for crops with different growth habits, and greatly improving the versatility of the facility ecological cycle substrate cultivation method.

[0137] Figure 4 is a structural schematic diagram of the facility ecological cycle substrate cultivation device provided by the application, as Figure 4 indicated, mainly includes but is not limited to:

[0138] The cultivation tank 1 has a fermentation and maturation layer and a cultivation substrate layer laid in it from bottom to top.

[0139] The temperature sensor 16 is arranged in the fermentation and maturation layer and the cultivation substrate layer.

[0140] The aeration device 2 is used to supply air to the fermentation and maturation layer.

[0141] The heat storage and release module 4 is used to exchange heat with the fermentation and maturation layer and the cultivation substrate layer.

[0142] The controller 5 is electrically connected with the temperature sensor 16, the aeration device 2 and the heat storage and release module 4, and includes:

[0143] The temperature acquisition unit is used to acquire the fermentation temperature of the fermentation and maturation layer and the cultivation temperature of the cultivation substrate layer monitored by the temperature sensor 16;

[0144] The fermentation control unit is used to control the start-stop and / or air volume of the aeration device 2 based on the fermentation temperature, so as to adjust the fermentation heat production process of the fermentation and maturation layer;

[0145] The heat control unit is used to start the heat storage function of the heat storage and release module 4 to store the excess heat generated by the fermentation compost layer if the fermentation temperature is higher than the first temperature threshold, and to start the heat release function of the heat storage and release module 4 to deliver the heat stored in the heat storage and release module 4 to the cultivation substrate layer to improve the temperature of the cultivation substrate layer if the cultivation temperature is lower than the second temperature threshold.

[0146] As an optional embodiment, the heat storage and release module 4 of the facility ecological circulation substrate cultivation device provided by the application comprises a hollow cavity 15, at least a part of which is attached to the cultivation tank 1; and the hollow cavity 15 is loaded with a heat storage medium.

[0147] In another embodiment provided by the application, the facility ecological circulation substrate cultivation device further comprises a heat collection and distribution pipeline 17, one end of which is in communication with the hollow cavity 15, and the heat collection and distribution pipeline 17 is attached to the cultivation tank 1. The heat collection and distribution hole 18 can be a port opened on the cavity wall of the heat storage and release module 4, which serves as the inlet and outlet for the circulation of the heat storage medium, so that the heat collection and distribution pipeline 17 and the heat storage and release module 4 together constitute a closed fluid circulation loop for heat exchange.

[0148] In another embodiment provided by the application, the facility ecological circulation substrate cultivation device further comprises a ventilation device 2, which comprises an air pump and a ventilation pipeline 13; the air pump is in communication with the air inlet of the ventilation pipeline 13, and the air outlet of the ventilation pipeline 13 extends into the fermentation compost layer. A plurality of ventilation holes 14 are uniformly opened on the pipe wall of the part of the ventilation pipeline 13 extending into the fermentation compost layer, so as to uniformly distribute air to each area of the fermentation material.

[0149] In another embodiment provided by the application, the bottom of the cultivation tank 1 is further paved with a filter drainage layer, which is located below the fermentation compost layer. The filter drainage layer can be wood branches, or can be materials such as ceramic granules, gravel or volcanic rock, which have large pores and good water permeability.

[0150] It should be noted that the facility ecological circulation substrate cultivation device further comprises a layer height plate 11, and the amount of each material layer in the cultivation tank 1 is controlled according to the setting height of the layer height plate 11.

[0151] In another embodiment provided by the application, a heat preservation layer 3 is arranged on the outer wall of the cultivation tank 1. At least a part of the gauze 10 is paved between the fermentation compost layer and the cultivation substrate layer.

[0152] Considering that the substrate particles of the cultivation substrate layer are generally fine, and the material particles of the fermentation compost layer are large and have more pores, the cultivation substrate on the upper layer is prone to sinking and losing into the fermentation compost layer during irrigation or long-term use, and the roots of crops can also grow excessively downward and extend into the high-temperature fermentation layer and be damaged, therefore, the present application lays a screen 10 between the two layers to form a physical isolation interface, thereby effectively preventing the mixing of the two layers of material and maintaining the structural stability and functional integrity of each functional layer.

[0153] In another embodiment provided by the present application, a detachable cover plate 8 is arranged at the opening of the cultivation tank 1, and the cultivation holes 9 are arranged on the cover plate 8.

[0154] Specifically, the cover plate 8 plays a role of heat preservation, moisture preservation and isolation on the upper layer, covers the opening of the cultivation tank 1, can effectively reduce the heat loss of the cultivation substrate layer to the air, and inhibit the evaporation of water on the surface of the substrate; the detachable design greatly facilitates the user to lay the material, replace the substrate, equipment maintenance and other operations. The cultivation holes 9 provide fixed growth positions for crops.

[0155] In another embodiment provided by the present application, the facility ecological circulation substrate cultivation device further comprises a lifting device 7, and the supporting leg 6 of the cultivation tank 1 is detachably fixed to the movable end of the lifting device 7.

[0156] Specifically, considering that the cultivation tank 1 has a large overall weight after being filled with each layer of material and is not easy to carry, and the fixed height can not be convenient for planting, maintenance and other agricultural operations, therefore, by adding the lifting device 7, the vertical height of the entire cultivation tank 1 can be adjusted to adapt to the requirements of different height operating personnel or the operating height requirements of different agricultural activities (such as seedling raising, planting and harvesting), thereby significantly improving the convenience and humanization of use. Through the detachable design, the cultivation tank 1 can be separated from the lifting device 7 when it is necessary to completely replace the material in the tank, so as to facilitate dumping and cleaning.

[0157] It should be noted that the facility ecological circulation substrate cultivation device provided by the present application can perform the facility ecological circulation substrate cultivation method described in any of the above embodiments during specific operation, and the present embodiment will not be described here.

[0158] The facility ecological circulation substrate cultivation device provided by the present application utilizes the heat generated by the fermentation of the fermentation compost layer to supply heat for the cultivation substrate layer, and stores the excess heat in the fermentation process through the heat storage and release module, and releases heat when the temperature of the cultivation substrate layer is insufficient, thereby achieving temperature regulation of the cultivation substrate layer, and solving the problems of high operating energy consumption and high production cost caused by relying on external energy in the prior art.

[0159] Figure 5 is a structural schematic diagram of the facility ecological circulation substrate cultivation device provided by the present application, as shown in Figure 5 The facility ecological circulation substrate cultivation device in the embodiment includes a long strip-shaped cultivation tank 1, and the tank opening is covered with a cover plate 8. A row of cultivation holes 9 is uniformly and linearly arranged in the length direction of the cover plate 8, which is used for planting crops. An air pump 12 is arranged outside one end of the cultivation tank 1, which is used for supplying air into the tank. As viewed from the top, a row of air holes 14 is also arranged along the length direction of the cultivation tank 1 below the cultivation holes 9, and the air holes 14 are arranged on the air duct, which is used for uniformly delivering the air generated by the air pump 12 to the fermentation rot layer inside the tank body, so as to provide sufficient oxygen for fermentation.

[0160] Figure 6 is a structural schematic diagram of the facility ecological circulation substrate cultivation device provided by the present application, as shown in Figure 6 The laying structure of each material layer inside the cultivation tank 1 is more specifically shown in the form of longitudinal section. In the embodiment, the whole cultivation tank 1 is placed on a base type heat storage and release module, and the bottom of the hollow cavity 15 of the heat storage and release module is also provided with a supporting leg 6. Inside the cultivation tank 1, from bottom to top, there are successively laid: a filter drainage layer 22 composed of wood block branches; a fermentation rot layer composed of mixed fermentation energy layer 19 and fermentation excitation layer 20; and a cultivation substrate layer 21 for planting crops. At one end of the cultivation tank 1, a layer height plate 11 for assisting material filling is shown, and an air pump 12 for supplying air to the fermentation rot layer is also shown.

[0161] Figure 7 is a flow schematic diagram of the facility ecological circulation substrate cultivation method provided by the present application, as shown in Figure 7 As an optional embodiment, the method includes the following steps:

[0162] Step S1, determining the cultivation tank arrangement mode and the type of added material. Specifically, according to the structure of the aforementioned facility ecological circulation substrate cultivation method, the layers are arranged in the cultivation tank from bottom to top. First, a filter drainage layer composed of wood block branches is laid with a thickness of about 10-20 cm; then a fermentation rot layer is laid with a thickness of about 30-40 cm, which is composed of mixed crushed straw waste and organic manure in a volume ratio of about 3:1; finally, a cultivation substrate layer composed of mixed coconut husk, perlite, etc. is laid with a thickness of about 20-30 cm.

[0163] Step S2, adjust the moisture content according to the type of added material, maintain a certain humidity condition. After all the materials are added, the cultivation tank is fully irrigated until the seepage water amount from the tank bottom is about 20% of the total irrigation amount, and the irrigation is stopped, so as to ensure that each material layer reaches and maintains an initial humidity level of about 100% of the field water holding capacity, and to create suitable conditions for starting aerobic fermentation.

[0164] Step S3, plant crops in the cultivation hole and manage water and fertilizer. After the material in the tank is stable, the crops are planted in the cultivation hole of the cover plate in a single row, preferably solanaceous vegetables. In the subsequent daily management, water and fertilizer are supplied through drip irrigation and the like to ensure that the moisture content of the cultivation substrate layer is always maintained in the appropriate range of 70%-85% of the relative water content.

[0165] Step S4, start the ventilation device to ventilate and increase oxygen for different material layers. The controller starts the ventilation device according to the preset program, preferably in the mode of 2 times a day and 30 minutes of continuous ventilation each time, forcibly delivers air into the fermentation and decomposition layer to ensure that it is always in an aerobic condition to maintain stable heat production.

[0166] Step S5, obtain temperature data of different material layers, and use the controller to start the heat storage and release module to collect heat. The controller continuously monitors the fermentation temperature in the fermentation and decomposition layer. When the fermentation temperature is greater than the first preset threshold value (preferably 40℃), the controller starts the circulating water pump in the heat storage and release module to efficiently collect and store the excess heat in the heat storage and release module through the heat collecting pipe section.

[0167] Step S6, obtain temperature data of different material layers, and release heat in time according to the temperature control threshold. At the same time, the controller also continuously monitors the second temperature in the cultivation substrate layer. When the temperature is lower than the second preset threshold value (preferably 10℃), the controller starts the circulating water pump of the heat storage and release module again to accurately release the stored heat to the cultivation substrate layer through the heat dissipation pipe section of the heat collecting and distributing pipe for heat preservation.

[0168] Steps S4 to S6 are executed in a loop until the substrate cultivation crops are pulled out.

[0169] Figure 8 is a structural schematic diagram of an electronic device provided by the present application, as Figure 8As shown, the electronic device can include a processor 810, a communications interface 820, a memory 830, and a communications bus 840, wherein the processor 810, the communications interface 820, and the memory 830 complete mutual communication through the communications bus 840. The processor 810 can invoke a logical instruction in the memory 830 to execute a facility ecological cycle substrate cultivation method, which includes: obtaining a fermentation temperature of a fermentation compost layer and a cultivation temperature of a cultivation substrate layer monitored by a temperature sensor; based on the fermentation temperature, controlling start-stop and / or air volume of a ventilation device to adjust a fermentation heat production process of the fermentation compost layer; if the fermentation temperature is higher than a first temperature threshold, starting a heat storage function of a heat storage and release module to store excess heat generated by the fermentation compost layer; and if the cultivation temperature is lower than a second temperature threshold, starting a heat release function of the heat storage and release module to deliver the heat stored in the heat storage and release module to the cultivation substrate layer.

[0170] In addition, the logical instruction in the memory 830 described above can be implemented in the form of a software functional unit and sold or used as an independent product, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the part of the technical solutions that make essential contributions to the prior art can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various program code storage media.

[0171] In another aspect, the present application also provides a computer program product, which comprises a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the facility ecological cycle substrate cultivation method provided by any of the above embodiments, the method comprising: obtaining a fermentation temperature of a fermentation composting layer and a cultivation temperature of a cultivation substrate layer monitored by a temperature sensor; controlling start-stop and / or air volume of a ventilation device based on the fermentation temperature to regulate a fermentation heat production process of the fermentation composting layer; starting a heat storage function of a heat storage and release module to store excess heat generated by the fermentation composting layer if the fermentation temperature is higher than a first temperature threshold; and starting a heat release function of the heat storage and release module to deliver the heat stored in the heat storage and release module to the cultivation substrate layer if the cultivation temperature is lower than a second temperature threshold.

[0172] In yet another aspect, the present application also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a facility ecological cycle substrate cultivation method provided by any of the above embodiments, the method comprising: obtaining a fermentation temperature of a fermentation composting layer and a cultivation temperature of a cultivation substrate layer monitored by a temperature sensor; controlling start-stop and / or air volume of a ventilation device based on the fermentation temperature to regulate a fermentation heat production process of the fermentation composting layer; starting a heat storage function of a heat storage and release module to store excess heat generated by the fermentation composting layer if the fermentation temperature is higher than a first temperature threshold; and starting a heat release function of the heat storage and release module to deliver the heat stored in the heat storage and release module to the cultivation substrate layer if the cultivation temperature is lower than a second temperature threshold.

[0173] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the present embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0174] Those skilled in the art can clearly understand the technical solutions of the various embodiments from the above description of the embodiments, and the various embodiments can be implemented by means of software with the necessary general hardware platforms, and of course, can also be implemented by hardware. Based on such understanding, the above technical solutions, essentially or in other words, the part of the prior art that makes a contribution, can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, and the like, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0175] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of facility eco-circulation substrate cultivation applied to a facility eco-circulation substrate cultivation system, characterized in that, The facility ecological circulating substrate cultivation system comprises a fermentation compost layer, a cultivation substrate layer, an aeration device, a heat storage and release module, and a temperature sensor; The cultivation method comprises: obtaining a fermentation temperature of the fermentation compost layer and a cultivation temperature of the cultivation substrate layer monitored by the temperature sensor; based on the fermentation temperature, controlling the start-stop and / or air volume of the aeration device to adjust the fermentation heat production process of the fermentation compost layer; the air volume of the aeration device is controlled by adjusting the total aeration time per unit time or changing the operating power of the air pump; if the fermentation temperature is higher than a first temperature threshold, the heat storage function of the heat storage and release module is started to store the excess heat generated by the fermentation compost layer; if the cultivation temperature is lower than a second temperature threshold, the heat release function of the heat storage and release module is started to deliver the stored heat of the heat storage and release module to the cultivation substrate layer; based on the fermentation temperature, the start-stop and / or air volume of the aeration device are controlled, specifically comprising: when it is determined that the fermentation temperature is lower than a third temperature threshold, the aeration device is started or the air volume is increased; obtaining a second fermentation temperature, which is the temperature of the fermentation compost layer detected by the temperature sensor after the aeration device is started or the air volume is increased; when the second fermentation temperature is higher than a fourth temperature threshold and not higher than the first temperature threshold, the air volume of the aeration device is reduced; when the second fermentation temperature is higher than the first temperature threshold, the aeration device is stopped; the third temperature threshold is less than the fourth temperature threshold, and the fourth temperature threshold is less than the first temperature threshold.

2. The facility eco-cycling substrate cultivation method of claim 1, wherein, Further comprising: obtaining the heat storage medium temperature of the heat storage and release module; before or during the execution of the heat storage function, if the heat storage medium temperature is higher than a preset upper limit temperature, the heat storage function of the heat storage and release module is closed; before or during the execution of the heat release function, if the heat storage medium temperature is lower than a preset lower limit temperature, the heat release function of the heat storage and release module is closed.

3. The facility eco-cycling substrate cultivation method of claim 1, wherein, starting the heat storage function of the heat storage and release module or starting the heat release function of the heat storage and release module comprises: starting a medium circulation device to drive the heat storage medium of the heat storage and release module to circulate between the heat storage and release module and a heat exchange position; when the heat storage function of the heat storage and release module is started, the heat exchange position is the fermentation compost layer; when the heat release function of the heat storage and release module is started, the heat exchange position is the cultivation substrate layer.

4. The facility eco-cycling substrate cultivation method of claim 1, wherein, Further comprising: based on a preset sampling frequency, obtaining the fermentation temperature and the cultivation temperature; inputting the fermentation temperature and the cultivation temperature into a temperature prediction model to obtain a temperature prediction result output by the temperature prediction model, the temperature prediction model being obtained by training a time series model based on historical fermentation temperatures and historical cultivation temperatures, the temperature prediction result comprising a temperature change trend of the fermentation temperature and the cultivation temperature within a preset time; determining a pre-position time for starting the heat storage function or the heat release function of the heat storage and release module according to the temperature change trend; Based on the pre-time, the heat storage and release module is started to perform the heat collection function or the heat release function.

5. The facility eco-cycling substrate cultivation method of claim 1, wherein, Further comprising: Based on a preset sampling frequency, the fermentation temperature and the cultivation temperature are obtained; The fermentation temperature and the cultivation temperature are input into a temperature prediction model to obtain a temperature prediction result output by the temperature prediction model, the temperature prediction model being obtained by fitting a polynomial function based on historical fermentation temperatures and historical cultivation temperatures, and the temperature prediction result including temperature variation trends of the fermentation temperature and the cultivation temperature within a preset time; According to the temperature variation trends, a pre-time for starting the heat collection function or the heat release function of the heat storage and release module is determined; Based on the pre-time, the heat storage and release module is started to perform the heat collection function or the heat release function.

6. The facility eco-cycling substrate cultivation method of claim 1, wherein, Further comprising: Obtain environmental parameters, including at least one of environmental temperature, light intensity, and air humidity; Based on the environmental parameters, the first temperature threshold and / or the second temperature threshold are determined in real time.

7. The facility eco-cycling substrate cultivation method of claim 1, wherein, Further comprising: The second temperature threshold is less than the first temperature threshold.

8. The facility eco-cycling substrate cultivation method of claim 1, wherein, Further comprising: Obtain the moisture content of the fermentation compost layer; If the moisture content is lower than a lower limit value of moisture content, control the irrigation system to supplement water to the fermentation compost layer until the moisture content is not lower than the lower limit value of moisture content.

9. The method according to claim 1, wherein, Further comprising: Obtain the type of cultivated crops; According to a preset optimal root zone temperature range corresponding to the type of cultivated crops, the first temperature threshold and / or the second temperature threshold are determined.

10. A facility eco-cycling substrate cultivation device, characterized by, Comprising: A cultivation tank with a fermentation compost layer and a cultivation substrate layer laid inside; A temperature sensor configured in the fermentation compost layer and the cultivation substrate layer; An aeration device for supplying air to the fermentation compost layer; A heat storage and release module for heat exchange with the fermentation compost layer and the cultivation substrate layer; A controller electrically connected with the temperature sensor, the aeration device, and the heat storage and release module, comprising: A temperature acquisition unit for obtaining a fermentation temperature of the fermentation compost layer and a cultivation temperature of the cultivation substrate layer monitored by the temperature sensor; A heat control unit for starting a heat collection function of the heat storage and release module to store excess heat generated by the fermentation compost layer if the fermentation temperature is higher than a first temperature threshold, and starting a heat release function of the heat storage and release module to deliver the stored heat of the heat storage and release module to the cultivation substrate layer if the cultivation temperature is lower than a second temperature threshold. A fermentation control unit is configured to control the start-stop and / or the ventilation amount of the ventilation device based on the fermentation temperature, so as to regulate the fermentation heat production process of the fermentation mat; the control of the ventilation amount of the ventilation device is achieved by adjusting the total ventilation time length within a unit time or changing the running power of the air pump; the control of the start-stop and / or the ventilation amount of the ventilation device based on the fermentation temperature specifically includes: starting the ventilation device or increasing the ventilation amount when it is determined that the fermentation temperature is lower than a third temperature threshold; obtaining a second fermentation temperature, which is the temperature of the fermentation mat detected by the temperature sensor after starting the ventilation device or increasing the ventilation amount; reducing the ventilation amount of the ventilation device when the second fermentation temperature is higher than a fourth temperature threshold and not higher than the first temperature threshold; stopping the ventilation device when the second fermentation temperature is higher than the first temperature threshold; the third temperature threshold is less than the fourth temperature threshold, and the fourth temperature threshold is less than the first temperature threshold.

11. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The computer program, when executed by the processor, implements the facility ecological circulating substrate cultivation method according to any one of claims 1 to 9.

12. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program, when executed by the processor, implements the facility ecological circulating substrate cultivation method according to any one of claims 1 to 9.

13. A computer program product comprising a computer program, characterized in that, The computer program, when executed by the processor, implements the facility ecological circulating substrate cultivation method according to any one of claims 1 to 9. The computer program, when executed by the processor, implements the facility ecological circulating substrate cultivation method according to any one of claims 1 to 9.

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