A temperature-controlled planting device and method for plant factories

Abstract

This invention relates to a temperature-controlled planting device and method for plant factories. The planting device further includes a control unit, a camera, a temperature sensor, a liquid circulation unit, and an air circulation unit. Preferably, the control unit collects plant growth status and temperature data within the device through the camera and temperature sensor, respectively. Based on the plant growth status, the control unit determines the plant's growth environment and suitable temperature range. Then, based on the temperature data within the device, the control unit regulates the temperature of the plant's growth environment through the liquid circulation unit and / or the air circulation unit. Furthermore, this invention can supplement carbon dioxide near the plant when using ventilation temperature control, promoting photosynthesis.

Description

Technical Field

[0001] This invention relates to the field of plant cultivation technology, and in particular to a temperature-controlled planting device and method for plant factories. Background Technology

[0002] Temperature is closely related to plant growth; plant growth, development, and yield are all affected by temperature. Plants can only carry out their internal physiological activities (such as photosynthesis, transpiration, respiration, mineral absorption and assimilation, and the transformation and transport of organic matter) and biochemical reactions under certain temperature conditions. When the temperature is below or above the physiological limits of plants, their development will be hindered, and in severe cases, it may even lead to the death of the plant.

[0003] Therefore, the influence of temperature on plant cultivation cannot be ignored. When cultivating plants, especially in plant factories, it is necessary to control the temperature in the plant factory.

[0004] Temperature regulation in plant factories involves artificially adjusting the indoor temperature through specific engineering techniques to ensure efficient crop production.

[0005] Existing technologies contain a wealth of research on temperature control in plant cultivation, for example:

[0006] Chinese patent application CN111642296A discloses a temperature-controlled vegetable greenhouse, comprising a greenhouse body placed on the ground. The greenhouse body includes a top and side walls. Cooling and heat-storing liquid flow circuits and heat-insulating and heat-dissipating liquid flow circuits are installed within the top and side walls of the greenhouse body. These circuits are connected to the same water tank. Multiple connecting plates are installed at the bottom of the greenhouse body, and these connecting plates are connected to the ground via expansion bolts. A temperature regulation system is installed on the side walls of the greenhouse body. This invention utilizes the different boiling points of methyl formate and acetaldehyde in the methyl formate and acetaldehyde storage tanks to control the meshing of the first and second racks with the rotating gear. This allows control over the connection between the liquid flow reversing device and the first and second water inlets and outlets, as well as the second and second water inlets and outlets, thus enabling the switching between the cooling and heat-storing liquid flow circuits and the heat-insulating and heat-dissipating liquid flow circuits.

[0007] Chinese patent application CN 111183832A discloses a non-contact, temperature-adjustable integrated crop root cultivation device. This invention utilizes an integrated base as a mounting base for the root boxes, placing them vertically on the base. A heating device extending vertically from the base provides independent heating to each root box. In this invention, the root box has a double-layer structure, with the heating device isolated from the soil or medium contained within the root box through its inner cylinder. This allows for non-contact, independent temperature control; furthermore, temperature adjustment can be achieved by incorporating a touchscreen or switch. The integrated design allows for comparative experiments at different temperatures.

[0008] Existing heating devices, such as infusion pipelines, rely on heat conduction through a medium. Compared to the base or greenhouse body directly contacting the heating device, heat conduction in the air is slower, requiring time for temperature changes. Therefore, relying solely on infusion pipelines to heat the plant's growing environment is inefficient. Regarding cooling, existing technologies, besides utilizing the coolant in the infusion pipelines for heat storage, often employ cost-effective ventilation. However, the airflow generated by these ventilation systems often decreases near the plants due to obstruction, especially in densely planted conditions. Below the canopy, mutual shading between leaves leads to poor ventilation, causing carbon dioxide near the leaf surface to be consumed without replenishment, reducing or even halting photosynthesis and thus impacting plant growth.

[0009] To address the shortcomings of existing technologies, this invention provides a temperature-controlled planting device and method for plant factories.

[0010] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this invention, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that the present invention does not possess the features of these prior art. On the contrary, the present invention already possesses all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Summary of the Invention

[0011] Existing plant factories, greenhouses, and other indoor plant cultivation systems regulate the ambient temperature for plant growth to prevent disease caused by excessively high or low temperatures. Most existing indoor plant cultivation systems control the environment by setting preset temperature thresholds; that is, heating is applied when the ambient temperature falls below the preset threshold, and cooling is applied when the ambient temperature falls below the preset threshold. Air temperature and rhizosphere temperature within a plant factory significantly affect photosynthesis, respiration, the transport and accumulation of photosynthetic products, root growth, water and nutrient absorption, and the growth and development of various organs such as roots, stems, leaves, flowers, and fruits. To ensure these growth and physiological processes function properly, suitable temperature conditions must be provided for the plants.

[0012] To reduce excessively high indoor temperatures, existing plant factories mostly employ ventilation methods, in addition to using coolant for heat storage and cooling. This involves introducing cooler outdoor air into the room and expelling warmer indoor air to lower the temperature. However, plants require different optimal temperatures at different growth stages, and different plants have varying environmental temperature requirements. Current technology cannot meet the temperature needs of different plants at different growth stages, requiring managers to set temperature thresholds based on plant species and growth status. Because manual observation and judgment of plant growth stages are inherently delayed, this method cannot adjust the temperature in the planting environment in a timely manner, which is detrimental to plant growth. Furthermore, the airflow generated by the ventilation system in existing plant factories often decreases near the plants due to obstruction, especially in densely planted areas. Below the canopy, insufficient airflow between leaves due to mutual shading leads to the depletion of carbon dioxide near the leaf surface, resulting in reduced or even stopped photosynthesis and thus affecting plant growth.

[0013] Therefore, how to adjust the temperature of the growing environment of plants according to their growth status, and how to ensure the concentration of carbon dioxide when using ventilation temperature control, are the technical problems that this invention aims to solve.

[0014] To address the shortcomings of existing technologies, this invention provides a temperature-controlled planting device for a plant factory, comprising at least a housing, the inner cavity of which forms a plant planting space. The planting device further includes a control unit, a liquid circulation unit, and an airflow circulation unit. Preferably, the control unit generates and sends temperature adjustment commands to the liquid circulation unit and / or the airflow circulation unit based on the plant's growth state and the temperature of the plant's growing environment within the device, thereby adjusting the temperature of the plant's growing environment within the device to ensure that the temperature of the growing environment is adapted to the plant's growth state. Preferably, the liquid circulation unit is located at the bottom of the housing and is configured to regulate the temperature of the plant's growing environment through heat conduction. Preferably, the airflow circulation module is configured to generate a first transverse airflow and a second airflow with a different flow direction within the inner cavity of the housing, and ventilates the inner cavity of the device through the first airflow and / or the second airflow, thereby regulating the temperature of the plant's growing environment.

[0015] Preferably, the present invention obtains the plant's growth status, determines the suitable temperature for its growth, and then judges whether the existing growth environment temperature is suitable for its growth. If the existing growth environment temperature is not suitable for plant growth, the environmental temperature is adjusted so that the environmental temperature is always at a suitable temperature for plant growth. Preferably, during dehumidification, the present invention ensures sufficient airflow between plant leaves by using a first airflow and a second airflow flowing laterally within the inner cavity of the shell, thereby replenishing carbon dioxide in the air above the leaf surface while lowering the temperature, allowing the plant to carry out photosynthesis normally.

[0016] According to a preferred embodiment, the liquid circulation unit includes at least a water pump and a liquid delivery pipeline. The liquid delivery pipeline covers the planting area at the bottom of the planting device. In response to receiving a temperature regulation command, the water pump pumps liquid into the liquid delivery pipeline to regulate the temperature of the plant's growing environment. Preferably, the water pump is equipped with at least a first pumping mode for pumping heated liquid and a second pumping mode for pumping unheated liquid.

[0017] Preferably, the control unit sends a temperature regulation command generated based on the plant growth status and the temperature of the plant growth environment within the device to the liquid circulation unit. In response to receiving the temperature regulation command, the water pump of the liquid circulation unit pumps liquid into the delivery pipeline. The water pump of the liquid circulation unit regulates the temperature of the plant growth environment within the device, particularly the temperature of the culture medium that forms the growth environment for plant seeds and roots, by switching between a first pumping mode and a second pumping mode.

[0018] According to a preferred embodiment, the airflow circulation unit includes at least a plurality of first vents and a plurality of second vents disposed on the sidewall of the housing. Preferably, the sidewall containing the plurality of first vents is disposed opposite to the sidewall containing the plurality of second vents. The airflow circulation unit generates a first airflow flowing laterally within the housing cavity through the first vents. The first airflow flows out from the first vents, passes through the housing cavity, and then exits the planting device through the second vents.

[0019] Preferably, the present invention can increase the airflow velocity of the first and second vents located below the plant canopy according to the height of the plant, thereby increasing the airflow velocity between the plant leaves, reducing the temperature while promoting the replenishment of carbon dioxide in the air on the leaf surface, so that the plant can carry out photosynthesis normally.

[0020] According to a preferred embodiment, the airflow circulation unit further includes a plurality of third vents located between the infusion pipes at the bottom of the inner cavity of the housing. The airflow circulation unit directs a second, longitudinal airflow through the third vents to a location near the bottom of the inner cavity of the housing. The second airflow and the first airflow can exit the inner cavity of the housing through the second vents, facilitating gas exchange between the inside and outside of the planting device, thereby regulating the temperature of the plant growth environment.

[0021] Preferably, the third ventilation openings at the bottom of the planting device can generate a second airflow along the direction from the plant roots to the plant canopy. Since the second airflow has less obstruction to the airflow from the plant, compared to the method of exchanging air in the planting device only through the first airflow, the second airflow can better remove air from the surface of the plant leaves, thereby regulating the temperature of the air in the planting device.

[0022] According to a preferred embodiment, both the first vent and the third vent are equipped with a first ventilation mode for delivering warm air and a second ventilation mode for delivering cold air. The control unit can determine the ventilation mode of the first vent and the third vent based on the plant's growth status and the temperature of its growing environment, thereby adjusting the temperature inside the device to ensure that the temperature of the plant's growing environment is adapted to its growth status.

[0023] Preferably, the control unit sends a temperature adjustment command generated based on the plant growth status and the temperature of the plant growth environment within the device to the airflow circulation unit. In response to receiving the temperature adjustment command, the first and third vents of the airflow circulation unit adjust the temperature of the plant growth environment within the device, particularly the air temperature of the plant stem and leaf growth environment, by switching between a first ventilation mode and a second ventilation mode.

[0024] According to a preferred embodiment, the control unit collects plant growth status and temperature data within the device via a camera and a temperature sensor, respectively. Preferably, the camera and the temperature sensor transmit the collected plant growth status and temperature data to the control unit via wired and / or wireless means. Based on the plant growth status, the control unit determines the plant's growing environment and a suitable temperature range for its growth, and then adjusts the temperature of the plant's growing environment within the planting device according to the temperature data within the device.

[0025] Preferably, the camera and the temperature sensor establish a communication connection with the control unit via wired or wireless means. The control unit compares the images captured by the camera with data in a database to determine the species of the corresponding plant and its growth stage in its life cycle, and obtains the environmental temperature value that promotes the plant's growth at that stage. The control unit compares the actual temperature value of the plant's growth environment obtained through the temperature sensor with the environmental temperature value that promotes plant growth to determine whether to adjust the temperature of the plant's growth environment, thereby achieving dynamic adjustment of the plant's growth environment temperature. Preferably, the temperature value that promotes the plant's growth at a certain growth stage can be a constant value or a temperature range.

[0026] According to a preferred embodiment, the temperature regulation of the plant growth environment in the planting device by the control unit includes at least a heating operation. Preferably, the heating operation is implemented as follows: when the temperature of the plant growth environment in the planting device is lower than its suitable growth temperature, the control unit generates a heating command and sends it to the liquid circulation unit and / or the airflow circulation unit. In response to receiving the heating command, the water pump of the liquid circulation unit pumps heated liquid to the infusion pipe and / or the first vent and the third vent of the airflow circulation unit delivers warm air to the inner cavity of the planting device, thereby increasing the temperature of the plant growth environment.

[0027] According to a preferred embodiment, the temperature regulation of the plant growth environment in the planting device by the control unit further includes a cooling operation. Preferably, the cooling operation is implemented as follows: when the temperature of the plant growth environment in the planting device is higher than its suitable growth temperature, the control unit generates a cooling command and sends it to the liquid circulation unit and / or the airflow circulation unit. Preferably, in response to receiving the cooling command, the water pump of the liquid circulation unit pumps unheated liquid to the infusion pipe and / or the first vent and the third vent of the airflow circulation unit delivers cold air to the inner cavity of the planting device, thereby reducing the temperature of the plant growth environment.

[0028] This invention also provides a method for temperature-controlled cultivation in a plant factory, the method comprising at least:

[0029] The control unit determines the appropriate temperature for plant growth and sends temperature regulation commands to the liquid circulation unit or air circulation unit to regulate the temperature inside the planting device, thereby ensuring that the temperature of the environment in which the plants are located is suitable for their growth status.

[0030] The liquid circulation unit is located at the bottom of the inner cavity of the planting device housing, and the temperature of the plant's growth environment is regulated by heat conduction.

[0031] The airflow circulation unit generates a first transverse airflow and a second airflow with a different flow direction in the inner cavity of the housing. The first airflow and / or the second airflow are used to ventilate the inner cavity of the device, thereby regulating the temperature of the plant's growth environment.

[0032] According to a preferred embodiment, the temperature-controlled planting method in a plant factory further includes:

[0033] The device collects plant growth status and temperature data within the device using a camera and temperature sensor, and transmits the collected data to the control unit.

[0034] The control unit determines the plant's growth environment and suitable temperature range based on the plant's growth status, and then adjusts the temperature of the plant's growth environment in the planting device according to the temperature data in the device. Attached Figure Description

[0035] Figure 1 This is a simplified schematic diagram of a planting device 100 according to a preferred embodiment of the present invention;

[0036] Figure 2 This is a simplified schematic diagram of the communication between the modules of the planting device 100 according to a preferred embodiment of the present invention;

[0037] Figure 3 This is a simplified schematic diagram of a liquid circulation unit according to a preferred embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the operation of a planting device 100 according to a preferred embodiment of the present invention.

[0039] List of reference numerals

[0040] 100: Planting device; 101: Housing; 110: Control unit; 111: Camera; 112: Temperature sensor; 120: Liquid circulation unit; 121: Water pump; 122: Liquid delivery pipeline; 123: Liquid storage tank; 130: Airflow circulation unit; 131: First vent; 132: Second vent; 133: Third vent; 140: Carbon dioxide storage and release system; 200: Wheat. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1 and 4 Please provide a detailed explanation.

[0042] Example 1

[0043] This embodiment provides a temperature-controlled planting device 100 for a plant factory. See also... Figure 1 Preferably, the planting device 100 includes at least a housing 101, the inner cavity of which forms a plant planting space. Preferably, the plant is planted at the bottom of the inner cavity of the device.

[0044] See Figure 2 Preferably, the planting device 100 further includes a control unit 110, a camera 111, a temperature sensor 112, a liquid circulation unit 120, and an airflow circulation unit 130. Preferably, the control unit 110 collects plant growth status and temperature data within the device via the camera 111 and the temperature sensor 112. Preferably, the camera 111 and the temperature sensor 112 transmit the collected plant growth status and temperature data to the control unit 110 via wired and / or wireless means. Based on the plant growth status, the control unit 110 determines the plant's growth environment and the suitable temperature range for its growth, and then adjusts the temperature of the plant's growth environment in the planting device 100 according to the temperature data within the device.

[0045] Preferably, the control unit 110 generates and sends temperature adjustment commands to the liquid circulation unit 120 and / or the airflow circulation unit 130 based on the plant's growth status and the temperature of the plant's growth environment within the device, thereby adjusting the temperature of the plant's growth environment within the device to ensure that the temperature of the plant's growth environment is adapted to its growth status. Preferably, the liquid circulation unit 120 is disposed at the bottom of the housing 101 and is configured to adjust the temperature of the plant's growth environment by means of heat conduction. Preferably, the airflow circulation module 130 is configured to form a first transverse airflow and a second airflow with a different flow direction inside the housing 101, and to ventilate the inside of the device through the first airflow and / or the second airflow, thereby adjusting the temperature of the plant's growth environment.

[0046] Preferably, the present invention obtains the plant's growth status, determines the suitable temperature for its growth, and then judges whether the existing growth environment temperature is suitable for its growth. If the existing growth environment temperature is not suitable for plant growth, the environmental temperature is adjusted so that the environmental temperature is always at a suitable temperature for plant growth. Preferably, during dehumidification, the present invention ensures sufficient airflow between plant leaves by using a first airflow and a second airflow flowing laterally within the inner cavity of the shell, thereby reducing the temperature while replenishing carbon dioxide in the air above the leaf surface, allowing the plant to carry out photosynthesis normally.

[0047] Preferably, the camera 111 and the temperature sensor 112 establish a communication connection with the control unit 110 via wired or wireless means. The control unit 110 compares the images captured by the camera 111 with data in a database to determine the species of the plant and its growth stage in its life cycle, and obtains the environmental temperature value that promotes the plant's growth at that stage. The control unit 110 compares the actual temperature value of the plant's growth environment obtained by the temperature sensor 112 with the environmental temperature value that promotes plant growth to determine whether to adjust the temperature of the plant's growth environment, thereby achieving dynamic adjustment of the plant's growth environment temperature. Preferably, the temperature value that promotes the plant's growth at a certain growth stage can be a fixed value or a temperature range. Preferably, the temperature sensor 112 can be placed in the plant culture medium or at the bottom of the planting device 100 to detect the air temperature within the planting device 100.

[0048] See Figure 3 Preferably, the liquid circulation unit 120 includes at least a water pump 121 and a liquid delivery pipe 122. The liquid delivery pipe 122 covers the planting area at the bottom of the planting device 100. In response to a temperature regulation command, the water pump 121 pumps liquid into the liquid delivery pipe 122 to regulate the temperature of the plant's growing environment. Preferably, the water pump 121 is provided with at least a first pumping mode for pumping heated liquid and a second pumping mode for pumping unheated liquid.

[0049] See Figure 3 Preferably, the liquid circulation unit 120 is further provided with a liquid storage tank 123. Preferably, the liquid pumped by the water pump 121 flows into the liquid storage tank 123 for storage via the liquid delivery pipe 122, and the water pump 121 pumps liquid from the liquid storage tank 123. Preferably, the liquid storage tank 123 can be a cooling tank. Preferably, the water pump 121 is equipped with a heating module, and when the liquid circulation unit 120 receives a heating command, the heating module of the water pump 121 heats the pumped liquid.

[0050] Preferably, the control unit 110 sends a temperature regulation command generated based on the plant growth status and the temperature of the plant growth environment within the device to the liquid circulation unit 120. In response to the receipt of the temperature regulation command, the water pump 121 of the liquid circulation unit 120 pumps liquid into the delivery pipe 122. The water pump 121 of the liquid circulation unit 120 regulates the temperature of the plant growth environment within the device, particularly the temperature of the culture medium that forms the environment for the growth of plant seeds and roots, by switching between a first pumping mode and a second pumping mode.

[0051] See Figure 4 Preferably, the airflow circulation unit 130 includes at least a plurality of first vents 131 and a plurality of second vents 132 disposed on the side wall of the housing. Preferably, the side wall containing the plurality of first vents 131 is disposed opposite to the side wall containing the plurality of second vents 132. The airflow circulation unit generates a first airflow that flows laterally within the housing cavity through the first vents 131. After flowing out of the first vents 131 and passing through the housing cavity, the first airflow exits the planting device 100 through the second vents 132.

[0052] Preferably, the present invention can increase the airflow velocity of the first vent 131 and the second vent 132 located below the plant canopy according to the height of the plant, thereby increasing the airflow velocity between the plant leaves, reducing the temperature while promoting the replenishment of carbon dioxide in the air on the leaf surface, so that the plant can carry out photosynthesis normally.

[0053] Preferably, the airflow circulation unit 130 further includes a plurality of third vents 133 located between the infusion pipes 122 at the bottom of the inner cavity of the housing 101. The airflow circulation unit 130 generates a longitudinal second airflow near the bottom of the inner cavity of the housing 101 through the third vents 133. The second airflow and the first airflow can exit the inner cavity of the housing 101 through the second vents 132, exchanging gases inside and outside the planting device 100, thereby regulating the temperature of the plant growth environment.

[0054] Preferably, a number of third vents provided at the bottom of the planting device 100 can generate a second airflow along the direction from the plant roots to the plant canopy. Since the second airflow has less obstruction to the airflow by the plant, compared with the method of exchanging air in the planting device 100 only through the first airflow, the second airflow can better remove the air from the surface of the plant leaves, thereby regulating the temperature of the air in the planting device 100.

[0055] Preferably, both the first vent 131 and the third vent 133 are equipped with a first ventilation mode for conveying warm air and a second ventilation mode for conveying cold air. The control unit 110 can determine the ventilation mode of the first vent 131 and the third vent 133 based on the plant's growth status and the temperature of its growing environment, so as to regulate the temperature inside the device and ensure that the temperature of the growing environment of the plant inside the device is adapted to its growth status.

[0056] Preferably, the control unit 110 sends a temperature regulation command generated based on the plant growth status and the temperature of the plant growth environment inside the device to the airflow circulation unit 130. In response to the receipt of the temperature regulation command, the first vent 131 and the third vent 133 of the airflow circulation unit 130 regulate the temperature of the plant growth environment inside the device, especially the air temperature belonging to the plant stem and leaf growth environment, by switching between a first ventilation mode and a second ventilation mode.

[0057] Existing ventilation systems in plant factories often experience reduced airflow near plants due to obstruction, especially in densely planted conditions. Below the canopy, insufficient airflow between leaves leads to the retention of hot, humid air on the leaf surface, reducing transpiration and causing heartburn. Furthermore, the lack of airflow below the canopy depletes carbon dioxide near the leaves, further reducing photosynthetic efficiency and ultimately impacting plant growth.

[0058] In this embodiment, the airflow velocity of the first vent 121 and the second vent 122 located below the plant canopy can be increased according to the plant's height, thereby increasing the velocity of the first airflow below the plant canopy. This embodiment can also generate a second airflow along the direction from the plant roots to the plant canopy through several third vents 123 located at the bottom of the planting device 100. Since the second airflow flows upwards, the plant obstructs the airflow less, and the second airflow can remove the high-humidity, high-temperature air from the plant leaf surface. Preferably, this embodiment increases the airflow velocity between plant leaves by using the first and second airflows to remove the high-humidity air from the leaf surface, allowing the plant to maintain normal transpiration, thereby reducing the probability of heartburn.

[0059] Preferably, the pipe of the third vent 133 is connected to a carbon dioxide storage and release system 140. When the third vent 133 generates a second airflow to remove air from the surface of the plant leaves, the carbon dioxide storage and release system 140 releases carbon dioxide and transports it to the vicinity of the plant leaves through the third vent 133. Preferably, this embodiment utilizes the second airflow to transport carbon dioxide to the vicinity of the plant leaves by connecting the carbon dioxide storage and release system 140 to the pipe of the third vent 133, thereby improving the photosynthetic efficiency of the plant and promoting plant growth.

[0060] Preferably, the temperature regulation of the plant growth environment in the planting device 100 by the control unit 110 includes at least a heating operation. Preferably, the heating operation is implemented as follows: when the temperature of the plant growth environment in the planting device 100 is lower than its suitable growth temperature, the control unit 110 generates a heating command and sends it to the liquid circulation unit 120 and / or the airflow circulation unit 130. In response to the receipt of the heating command, the water pump 121 of the liquid circulation unit 120 pumps heated liquid to the liquid delivery pipe 122 and / or the first vent 131 and third vent 133 of the airflow circulation unit 130 deliver warm air to the interior of the planting device 100, thereby increasing the temperature of the plant growth environment.

[0061] Preferably, the temperature regulation of the plant growth environment in the planting device 100 by the control unit 110 further includes a cooling operation. Preferably, the cooling operation is implemented as follows: when the temperature of the plant growth environment in the planting device 100 is higher than its suitable growth temperature, the control unit generates a cooling command and sends it to the liquid circulation unit 120 and / or the airflow circulation unit 130. Preferably, in response to receiving the cooling command, the water pump 121 of the liquid circulation unit 120 pumps unheated liquid to the infusion pipe 122 and / or the first vent 131 and the third vent 133 of the airflow circulation unit 130 delivers cold air to the interior of the planting device 100, thereby lowering the temperature of the plant growth environment.

[0062] Preferably, the control unit 110 determines the growth stage of the plant by capturing images from the camera 111, and obtains the ambient temperature value that can promote the growth of the plant at that growth stage and the object that needs temperature regulation.

[0063] Preferably, when the control unit 110 determines that the plant is in the sowing stage and exists mainly in the form of seeds, the control unit 110 preferentially adjusts the temperature of the plant's growth environment through the liquid circulation unit 120. In other words, when the plant exists mainly in the form of seeds, the plant body is located in the culture medium, and the control unit 110 can quickly conduct heat from the culture medium through the liquid circulation unit 120, which is in contact with the culture medium, thereby adjusting the temperature of the culture medium to suit the plant's temperature growth requirements.

[0064] Preferably, when the control unit 110 determines that the plant is in the stem and leaf growth stage, and the plant's stems, leaves, and other organs constitute the main body of the plant, the control unit 110 preferentially regulates the temperature of the plant's growth environment through the airflow circulation unit 130. When the stems, leaves, and other organs constituting the main body of the plant are forming in the air, the control unit 110 replaces the air near the plant's stems, leaves, and other organs through the airflow circulation unit 130, thereby regulating the air temperature near the plant to suit the plant's temperature growth requirements. Preferably, compared to the liquid circulation unit 120, which conducts heat between the air and the liquid delivery pipe 122 through the culture medium, the airflow circulation unit 130 can conduct heat from the air more quickly.

[0065] The control unit 110 compares the actual temperature value of the plant's growth environment obtained by the temperature sensor 112 with the ambient temperature value that promotes plant growth in order to determine whether to adjust the temperature of the plant's growth environment.

[0066] Preferably, when it is necessary to increase the temperature of the culture medium, the control unit 110 generates a heating command and sends it to the liquid circulation unit 120. In response to the receipt of the heating command, the water pump 121 of the liquid circulation unit 120 pumps the heated liquid to the infusion pipe 122, thereby raising the temperature of the culture medium located at the bottom of the planting device 100 until the temperature of the culture medium is suitable for the growth environment temperature required by the plant.

[0067] Preferably, when it is necessary to increase the air temperature near the plant, the control unit 110 generates a heating command and sends it to the airflow circulation unit 130. In response to the receipt of the heating command, the first vent 131 and the third vent 133 of the airflow circulation unit 130 deliver warm air to the inner cavity of the planting device 100, raising the air temperature near the plant to the value required for growth.

[0068] Preferably, when it is necessary to lower the temperature of the culture medium, the control unit 110 generates a cooling command and sends it to the liquid circulation unit 120. In response to the receipt of the cooling command, the water pump 121 of the liquid circulation unit 120 pumps unheated liquid to the infusion pipe 122, where the unheated liquid acts as a coolant to absorb heat from the culture medium, thereby lowering the temperature of the culture medium.

[0069] Preferably, when it is necessary to increase the air temperature near the plant, the control unit 110 generates a cooling command and sends it to the airflow circulation unit 130. In response to the receipt of the cooling command, the first vent 131 and the third vent 133 of the airflow circulation unit 130 deliver cold air to the inner cavity of the planting device 100, thereby reducing the temperature of the plant growth environment.

[0070] Preferably, the plant grown in the planting device 100 can be wheat 200. Preferably, the wheat growth cycle can be divided into four stages: soaking, sowing, seedling raising, and growth. The soaking stage refers to soaking wheat seeds in water at 20-50℃ for 8-24 hours. The sowing stage refers to sowing the seeds, after they have absorbed water and shown signs of germination, into 72-cell seedling trays and placing them in the dark to await germination. The seedling raising stage refers to placing the seedling trays under light after germination until the wheat plants reach a height of 5-15cm. The growth stage refers to transferring the wheat from the seedling trays to a transplanting basket for further cultivation.

[0071] Preferably, when wheat is in the sowing and seedling stages, it exists mainly in the culture medium in the form of seeds. At this time, the environmental temperature affecting wheat growth refers to the temperature of the substrate. Preferably, when wheat is in the vegetative growth and reproductive growth stages, it exists mainly in the form of seedlings, most of which are located in the air. At this time, the environmental temperature affecting wheat growth refers to the temperature of the air.

[0072] Preferably, when sowing, a portion of peat moss substrate is first laid in the seedling tray. After sowing, the holes are filled and leveled with peat moss, then the trays are thoroughly moistened with water and placed in the dark to await germination. During this period, the substrate temperature is controlled at 14℃-16℃. Preferably, during seedling raising, the substrate temperature is controlled at 15-18℃. Preferably, during growth cultivation, the air temperature is controlled at 15-30℃. Preferably, the growth stages of wheat 200 can be further divided into vegetative growth stage and reproductive growth stage, marked by the heading of wheat 200. Preferably, during the vegetative growth stage before heading of wheat 200, the air temperature is controlled at 15-25℃. Preferably, during the reproductive growth stage after heading of wheat 200, the air temperature is controlled at 25-30℃.

[0073] Preferably, when planting wheat 200 using the planting device 100 of this embodiment, except for the seed soaking step, the wheat 200 is located at the bottom of the planting device 100. Preferably, when the wheat 200 is located in a seed tray or planting basket, the seed tray or planting basket containing the wheat 200 is placed at the bottom of the planting device 100, and the temperature of the wheat 200 planting environment is controlled by the planting device 100.

[0074] Preferably, the temperature sensor 112 can be set at the bottom of the planting device 100 to detect the air temperature or it can be set in the seed tray or planting basket to detect the temperature of the culture medium.

[0075] Preferably, camera 111 captures an image of the bottom area of ​​planting device 100 and transmits the captured image to control unit 110. Control unit 110 processes the image to confirm the growth stage of wheat 200 and determines the suitable temperature for its growth. Control unit 110 obtains the actual temperature of the environment in which wheat 200 is located through temperature sensor 112, and control unit 110 determines whether to adjust the temperature of the plant's environment by comparing the actual temperature of the environment in which wheat 200 is located with the suitable temperature for its growth.

[0076] Preferably, the control unit 110 determines the current growth stage of the wheat 200 in its growth cycle by processing the image. Preferably, when no wheat leaves are visible in the image captured by the camera 111, the wheat 200 is in the sowing stage. When wheat leaves are visible in the image captured by the camera 111 but the wheat plant height does not exceed 5 cm, the wheat 200 is in the seedling stage. When the wheat plant height exceeds 5 cm in the image captured by the camera 111 but the wheat 200 has not yet produced ears, the wheat 200 is in the vegetative growth stage. When ears of wheat are visible in the image captured by the camera 111, the wheat 200 is in the reproductive growth stage.

[0077] Preferably, when the wheat 200 is in the sowing and seedling stages, the control unit 110 detects the temperature of the culture medium using a temperature sensor 112 installed in the seed tray or planting basket. Preferably, when the temperature of the culture medium is lower than the suitable temperature for its growth, the control unit 110 generates a heating command and sends it to the liquid circulation unit 120. In response to the receipt of the heating command, the water pump 121 of the liquid circulation unit 120 pumps heated liquid to the infusion pipe 122, thereby raising the temperature of the culture medium located at the bottom of the planting device 100 until the temperature of the culture medium is suitable for the growth environment temperature required by the wheat 200.

[0078] Preferably, when the temperature of the culture medium is higher than the temperature suitable for its growth, the control unit 110 generates a cooling command and sends it to the liquid circulation unit 120. In response to the receipt of the cooling command, the water pump 121 of the liquid circulation unit 120 pumps unheated liquid to the infusion pipe 122. The unheated liquid in the infusion pipe 122 acts as a coolant to absorb heat from the culture medium, thereby lowering the temperature of the wheat 200 culture medium.

[0079] Preferably, when the wheat 200 is in the vegetative growth stage and the reproductive growth stage, the control unit 110 detects the air temperature through the temperature sensor 112 located at the bottom of the planting device 100. Preferably, when the air temperature is lower than the suitable temperature for the growth of the wheat 200, the control unit 110 generates a heating command and sends it to the airflow circulation unit 130. In response to the receipt of the heating command, the first vent 131 and the third vent 133 of the airflow circulation unit 130 deliver warm air to the inner cavity of the planting device 100, raising the air temperature near the wheat 200 to the value required for growth.

[0080] Preferably, when the air temperature is higher than the suitable temperature for wheat 200 growth, the control unit 110 generates a cooling command and sends it to the airflow circulation unit 130. In response to the receipt of the cooling command, the first vent 131 and the third vent 133 of the airflow circulation unit 130 deliver cold air to the inner cavity of the planting device 100, thereby reducing the temperature of the air near the wheat 200 plants.

[0081] Preferably, while the air temperature near the plant is regulated by the airflow circulation unit 130, the carbon dioxide storage and release system 140 releases carbon dioxide. Preferably, the carbon dioxide released by the carbon dioxide storage and release system 140 is transported to the vicinity of the wheat 200 plant through the third vent 133 to improve the photosynthetic efficiency of the wheat 200, thereby promoting the growth of the wheat 200.

[0082] Preferably, the first vent 131 and the third vent 133 of the airflow circulation unit 130 are further provided with a third ventilation mode. Preferably, in the third ventilation mode, the first vent 131 and the third vent 133 do not change the temperature of the gas. Preferably, in the third ventilation mode, the first vent 131 and the third vent 133 do not participate in the regulation of the air temperature near the wheat 200 plants, but rather promote airflow between the wheat 200 plants to replenish the carbon dioxide near the wheat 200 plants, ensuring the normal operation of their photosynthesis.

[0083] Preferably, when supplementing carbon dioxide to the area below the wheat canopy 200, the control unit 110 determines the height of the wheat canopy 200 based on the image captured by the camera 111 and sends the wheat height data to the airflow circulation unit 130. In response to receiving the wheat canopy height data, the airflow circulation unit 130 adjusts the operating mode of each vent, so that the airflow within the planting device 100 confines the supplemented carbon dioxide gas to the area below the wheat canopy 200. Preferably, the adjustment of the operating mode of each vent by the airflow circulation unit 130 includes at least the adjustment of one or more parameters such as wind speed, wind direction, and temperature.

[0084] Preferably, the first vent 131 and the third vent 133 are configured as air outlets, and the second vent 132 is configured as an air inlet. Airflow enters the planting device 100 through the first vent 131 and the third vent 133, and exits the planting device 100 through the second vent 132. Preferably, the first vent 131 and the second vent 132 form a first airflow that flows laterally within the planting device 100.

[0085] Preferably, when supplementing carbon dioxide to the portion of the wheat below the 200mm canopy, the air outlet speeds of the first vent 131 and second vent 132 on the side wall of the planting device 100, which are higher than the wheat 200mm canopy, are adjusted to a first wind speed; the air outlet speeds of the first vent 131 and second vent 132 on the side wall of the planting device 100, which are lower than the wheat 200mm canopy, are adjusted to a second wind speed greater than the first wind speed. Preferably, the air outlet speeds of the first vent 131 and second vent 132 on the side wall of the planting device 100 are adjusted according to the height of the wheat 200mm canopy, so that a pressure difference exists in the lateral airflow above and below the wheat 200mm canopy. Preferably, the first airflow velocity above the wheat 200mm canopy is greater than the first airflow velocity below the wheat 200mm canopy; in other words, the air pressure above the wheat 200mm canopy is higher than the air pressure below the wheat 200mm canopy. Preferably, in this embodiment, by creating an air pressure difference above and below the wheat 200 canopy, the carbon dioxide released through the third vent 133 is difficult to diffuse to the high-pressure area (the area above the wheat 200 canopy), thereby limiting the released carbon dioxide to the part below the wheat 200 canopy, supplementing the carbon dioxide near the wheat 200 leaves, increasing the photosynthetic efficiency of the plant, and thus promoting plant growth.

[0086] Since both the first vent 131 and the second vent 132 are located on the side wall of the planting device 100, the wheat 200 plants closer to the first vent 131 and the second vent 132 will inevitably experience a stronger effect from the first airflow than those farther away. Due to the physiological characteristics of the wheat 200, its leaf spacing is relatively small; that is, the small gaps between wheat 200 plants are not conducive to airflow.

[0087] Therefore, relying solely on the first vent 131 and the second vent 132 located on the side wall of the planting device 100 is insufficient to ensure that the first airflow can pass through the area below the canopy of the wheat 200 in the entire planting device 100. Furthermore, due to the small gaps between the wheat 200 plants, the first airflow generated by the first vent 131 cannot diffuse rapidly, making the wheat 200 plants near the first vent 131 highly susceptible to damage from the high-speed airflow, resulting in lodging and other issues, thereby reducing the yield of high-quality wheat 200 in the planting device 100.

[0088] Preferably, in this embodiment, a longitudinal second airflow is generated through a third vent 133 located at the bottom of the inner cavity of the housing 101. Preferably, the second airflow moves along the roots of the wheat 200 towards the canopy of the wheat 200. Preferably, the direction of the second airflow is the same as the growth direction of the wheat 200 leaves. The second airflow can exert force on the entire leaf of the wheat, causing the leaves of the wheat 200 to move closer to the center of the plant, thereby increasing the spacing between the wheat 200 plants and providing a channel for the first airflow to circulate among the wheat 200 plants.

[0089] Preferably, when supplementing carbon dioxide to the area below the canopy of wheat 200 plants, the third vent 133 releasing carbon dioxide emits air at a third wind speed. Preferably, the third wind speed is lower than the second wind speed. Preferably, the second airflow generated by the third vent 133 releases carbon dioxide to the vicinity of the wheat 200 plants while increasing the spacing between them. Based on the increased spacing between the wheat 200 plants under the action of the second airflow, the first vent 131 and the second vent 132, which are below the height of the wheat 200 canopy, can diffuse the carbon dioxide from the third vent 133 to the entire area below the canopy of wheat 200 plants through the first airflow. This replenishes the carbon dioxide required for photosynthesis in all leaves of the planting device 100, preventing the carbon dioxide released by the third vent 133 from remaining near the third vent 133, which would prevent wheat plants far from the third vent 133 from receiving carbon dioxide, thus hindering photosynthesis and affecting plant growth.

[0090] Preferably, the pipes of the first vent 131 and the second vent 132 are interconnected. Preferably, the gas leaving the planting device 100 from the second vent 132 is dehumidified and then re-enters the planting device 100 through the first vent 131. Preferably, when replenishing carbon dioxide to the part of the wheat 200 below the canopy, both the first and second airflows carry carbon dioxide over time, thereby preventing the wheat 200 near the first vent 131 from being unable to replenish carbon dioxide due to it being carried away by the first airflow.

[0091] Preferably, the carbon dioxide storage and release system 140 can also be replaced with a nutrient solution storage and atomization release system. Preferably, the control unit 110 can process images captured by the camera 111 to determine the health status of the wheat 200. Preferably, when the control unit 110 determines that the wheat 200 is in poor health and needs nutrient solution replenishment, the control unit 110 sends a nutrient solution release command to the nutrient solution storage and atomization release system. The nutrient solution storage and atomization release system atomizes the nutrient solution and releases it, delivering it to the vicinity of the wheat 200 plants through the third vent 133, allowing the nutrient solution to directly contact the wheat 200 plants, thereby achieving precise delivery of the nutrient solution.

[0092] Preferably, the carbon dioxide storage and release system 140 can be replaced with an insecticide storage and atomization release system. Preferably, the control unit 110 can process images captured by the camera 111 to determine the pest situation of the wheat 200. Preferably, the control unit 110 can also obtain pest information at the location of the planting device 100 by accessing a pest control information network (especially when the present invention is used in a greenhouse). Preferably, when the control unit 110 determines that it is necessary to spray insecticide on the wheat for pest control based on the pest situation of the wheat 200 and / or the pest information at the location of the planting device 100, the control unit 110 sends an insecticide release command to the insecticide storage and atomization release system. The insecticide storage and atomization release system atomizes the nutrient solution and releases it, and delivers it to the vicinity of the wheat 200 plants through the third vent 133, so that the insecticide directly acts on the wheat 200 plants and the wheat 200 growing medium, thereby achieving the killing and prevention of pests.

[0093] Example 2

[0094] This embodiment is a further improvement on embodiment 1, and repeated content will not be described again.

[0095] This embodiment also provides a method for temperature-controlled cultivation in a plant factory. Preferably, the method for temperature-controlled cultivation in a plant factory includes at least:

[0096] The control unit 110 determines the appropriate temperature for plant growth and sends a temperature adjustment command to the liquid circulation unit 120 or the air circulation unit 130 to adjust the temperature inside the planting device 100, thereby ensuring that the temperature of the environment in which the plants are located is suitable for their growth status.

[0097] The liquid circulation unit 120 is set at the bottom of the inner cavity of the planting device 100 shell, and the temperature of the plant's growth environment is regulated by heat conduction.

[0098] The airflow circulation unit 130 forms a first airflow in the inner cavity of the shell and a second airflow with a different flow direction than the first airflow. The first airflow and / or the second airflow are used to ventilate the inner cavity of the device, thereby regulating the temperature of the plant's growth environment.

[0099] Preferably, the temperature-controlled planting method in plant factories also includes:

[0100] The device collects plant growth status and temperature data inside the device using camera 111 and temperature sensor 112, and transmits the collected plant growth status and temperature data inside the device to control unit 110.

[0101] The control unit 110 determines the growth environment and suitable temperature range for the plant based on its growth status, and then adjusts the temperature of the plant's growth environment in the planting device 100 according to the temperature data in the device.

[0102] Preferably, the present invention obtains the plant's growth status, determines the suitable temperature for its growth, and then judges whether the existing growth environment temperature is suitable for its growth. If the existing growth environment temperature is not suitable for plant growth, the environmental temperature is adjusted so that the environmental temperature is always at a suitable temperature for plant growth. Preferably, during dehumidification, the present invention ensures sufficient airflow between plant leaves by using a first airflow and a second airflow flowing laterally within the inner cavity of the shell, thereby reducing the temperature while replenishing carbon dioxide in the air above the leaf surface, allowing the plant to carry out photosynthesis normally.

[0103] Preferably, the camera 111 and the temperature sensor 112 establish a communication connection with the control unit 110 via wired or wireless means. The control unit 110 compares the images captured by the camera 111 with data in a database to determine the species of the plant and its growth stage in its life cycle, and obtains the environmental temperature value that promotes the plant's growth at that stage. The control unit 110 compares the actual temperature value of the plant's growth environment obtained by the temperature sensor 112 with the environmental temperature value that promotes plant growth to determine whether to adjust the temperature of the plant's growth environment, thereby achieving dynamic adjustment of the plant's growth environment temperature. Preferably, the temperature value that promotes the plant's growth at a certain growth stage can be a fixed value or a temperature range. Preferably, the temperature sensor 112 can be placed in the plant culture medium or at the bottom of the planting device 100 to detect the air temperature within the planting device 100.

[0104] See Figure 3 Preferably, the liquid circulation unit 120 includes at least a water pump 121 and a liquid delivery pipe 122. The liquid delivery pipe 122 covers the planting area at the bottom of the planting device 100. In response to a temperature regulation command, the water pump 121 pumps liquid into the liquid delivery pipe 122 to regulate the temperature of the plant's growing environment. Preferably, the water pump 121 is provided with at least a first pumping mode for pumping heated liquid and a second pumping mode for pumping unheated liquid.

[0105] Preferably, the airflow circulation unit 130 includes at least a plurality of first vents 131 and a plurality of second vents 132 disposed on the side wall of the housing. Preferably, the side wall containing the plurality of first vents 131 is disposed opposite to the side wall containing the plurality of second vents 132. The airflow circulation unit generates a first airflow that flows laterally within the housing cavity through the first vents 131. After flowing out of the first vents 131 and passing through the housing cavity, the first airflow exits the planting device 100 through the second vents 132.

[0106] Preferably, the airflow circulation unit 130 further includes a plurality of third vents 133 located between the infusion pipes 122 at the bottom of the inner cavity of the housing 101. The airflow circulation unit 130 generates a longitudinal second airflow near the bottom of the inner cavity of the housing 101 through the third vents 133. The second airflow and the first airflow can exit the inner cavity of the housing 101 through the second vents 132, exchanging gases inside and outside the planting device 100, thereby regulating the temperature of the plant growth environment.

[0107] The control unit 110 compares the actual temperature value of the plant's growth environment obtained by the temperature sensor 112 with the ambient temperature value that promotes plant growth in order to determine whether to adjust the temperature of the plant's growth environment.

[0108] Preferably, when it is necessary to increase the temperature of the culture medium, the control unit 110 generates a heating command and sends it to the liquid circulation unit 120. In response to the receipt of the heating command, the water pump 121 of the liquid circulation unit 120 pumps the heated liquid to the infusion pipe 122, thereby raising the temperature of the culture medium located at the bottom of the planting device 100 until the temperature of the culture medium is suitable for the growth environment temperature required by the plant.

[0109] Preferably, when it is necessary to increase the air temperature near the plant, the control unit 110 generates a heating command and sends it to the airflow circulation unit 130. In response to the receipt of the heating command, the first vent 131 and the third vent 133 of the airflow circulation unit 130 deliver warm air to the inner cavity of the planting device 100, raising the air temperature near the plant to the value required for growth.

[0110] Preferably, when it is necessary to lower the temperature of the culture medium, the control unit 110 generates a cooling command and sends it to the liquid circulation unit 120. In response to the receipt of the cooling command, the water pump 121 of the liquid circulation unit 120 pumps unheated liquid to the infusion pipe 122, where the unheated liquid acts as a coolant to absorb heat from the culture medium, thereby lowering the temperature of the culture medium.

[0111] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this invention, and these solutions all fall within the scope of this invention and its protection. Those skilled in the art should understand that this specification and its accompanying drawings are illustrative and do not constitute a limitation on the claims. The scope of protection of this invention is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time. This specification contains multiple inventive concepts. Phrases such as "preferred," "according to a preferred embodiment," or "optionally" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept.

Claims

1. A plant factory temperature control planting device, comprising at least a shell (101), the inner cavity of the shell (101) constitutes a plant planting space, characterized in that, the planting device further comprises a control unit (110), a liquid flow circulating unit (120) and an air flow circulating unit (130), wherein, the control unit (110) generates temperature adjustment instructions sent to the liquid flow circulating unit (120) and / or the air flow circulating unit (130) based on the plant growth state and the temperature of the plant growth environment in the device, to adjust the temperature of the plant growth environment in the device, so as to ensure that the temperature of the growth environment of the plant in the device is adapted to its growth state; wherein, the liquid flow circulating unit (120) is arranged at the bottom of the shell (101), and is configured to be able to adjust the temperature of the plant growth environment by heat conduction; the air flow circulating unit (130) is configured to form a first air flow in the transverse direction and a second air flow with a flow direction different from the first air flow in the inner cavity of the shell (101), and to ventilate the inner cavity of the device through the first air flow and / or the second air flow, so as to adjust the temperature of the plant growth environment; the air flow circulating unit (130) comprises a plurality of first air vents (131) and a plurality of second air vents (132) arranged on the side wall of the shell (101), wherein the side wall where the plurality of first air vents (131) are arranged is arranged opposite to the side wall where the plurality of second air vents (132) are arranged; the air flow circulating unit generates a first air flow flowing in the transverse direction in the inner cavity of the shell (101) through the first air vents (131), the first air flow flows out from the first air vents (131) and then leaves the planting device from the second air vents (132) after passing through the inner cavity of the shell (101); the air flow circulating unit (130) further comprises a plurality of third air vents (133) arranged between the liquid supply pipes (122) at the bottom of the inner cavity of the shell (101); the air flow circulating unit (130) forms a second air flow flowing in the longitudinal direction near the bottom of the inner cavity of the shell (101) through the third air vents (133), the second air flow and the first air flow can leave the inner cavity of the shell (101) from the second air vents (132), so as to exchange air between the inside and outside of the planting device, thereby adjusting the temperature of the plant growth environment; a carbon dioxide storage and release system (140) is connected to the pipes of the third air vents (133), in the case that the second air flow is generated at the third air vents (133) to take away the air on the surface of the plant leaves, the carbon dioxide storage and release system (140) releases carbon dioxide and delivers the carbon dioxide to the vicinity of the plant leaves through the third air vents (133); the first air vents (131) and the third air vents (133) are both provided with a first air vent mode for delivering warm air and a second air vent mode for delivering cold air; The control unit (110) can determine the ventilation mode of the first ventilation port (131) and the third ventilation port (133) based on the plant growth state and the temperature of the growth environment thereof, so as to adjust the temperature in the device, thereby ensuring that the temperature of the growth environment of the plant in the device is adapted to the growth state thereof.

2. The plant factory temperature control growing device according to claim 1, wherein, The liquid circulation unit (120) at least comprises a water pump (121) and a liquid supply pipeline (122); the liquid supply pipeline (122) covers the planting area at the bottom of the planting device; in response to the receipt of the temperature adjustment instruction, the water pump (121) pumps liquid to the liquid supply pipeline (122) to adjust the temperature of the growth environment of the plant, wherein, The water pump (121) is provided with at least a first pumping mode of pumping heated liquid and a second pumping mode of pumping unheated liquid.

3. The plant factory temperature control growing device of claim 1, wherein, The control unit (110) collects plant growth state and temperature data in the device through the camera (111) and the temperature sensor (112) respectively; The camera (111) and the temperature sensor (112) transmit the collected plant growth state and temperature data in the device to the control unit (110) in a wired and / or wireless manner; The control unit (110) determines the growth environment of the plant and the temperature range suitable for the growth thereof based on the plant growth state, and adjusts the temperature of the growth environment of the plant in the planting device according to the temperature data in the device.

4. The plant factory temperature control growing device according to claim 2, wherein, The temperature adjustment of the growth environment of the plant in the planting device by the control unit (110) at least comprises a warming operation; The implementation of the warming operation is as follows: in the case that the temperature of the growth environment of the plant in the planting device is lower than the suitable temperature for the growth thereof, the control unit (110) generates a warming instruction sent to the liquid circulation unit (120) and / or the air circulation unit (130); in response to the receipt of the warming instruction, the water pump (121) of the liquid circulation unit (120) pumps heated liquid to the liquid supply pipeline (122) and / or the first ventilation port (131) of the air circulation unit (130), and the third ventilation port (133) of the air circulation unit (130) delivers warm air to the inner cavity of the planting device, thereby increasing the temperature of the growth environment of the plant.

5. The plant factory temperature control growing device of claim 4, wherein, The temperature adjustment of the growth environment of the plant in the planting device by the control unit (110) further comprises a cooling operation; The implementation of the cooling operation is as follows: in the case that the temperature of the growth environment of the plant in the planting device is higher than the suitable temperature for the growth thereof, the control unit generates a cooling instruction sent to the liquid circulation unit (120) and / or the air circulation unit (130); in response to the receipt of the cooling instruction, the water pump (121) of the liquid circulation unit (120) pumps unheated liquid to the liquid supply pipeline (122) and / or the first ventilation port (131) and the third ventilation port (133) of the air circulation unit (130) deliver cold air to the inner cavity of the planting device, thereby reducing the temperature of the growth environment of the plant.

6. A plant factory temperature control cultivation method characterized by, The temperature control planting method at least comprises: The control unit (110) determines the temperature suitable for plant growth and sends temperature adjustment instructions to the liquid flow circulating unit (120) or the air flow circulating unit (130) to adjust the temperature in the planting device, so as to ensure that the temperature of the environment in which the plants in the device are located is suitable for their growth state; The liquid flow circulating unit (120) is arranged at the bottom of the inner cavity of the planting device shell (101), and the temperature of the growth environment of the plants is adjusted by heat conduction; The air flow circulating unit (130) forms a first air flow in the transverse direction and a second air flow with a flow direction different from the first air flow in the inner cavity of the shell (101), and ventilates the inner cavity of the device through the first air flow and / or the second air flow, so as to adjust the temperature of the growth environment of the plants; The air flow circulating unit (130) at least includes a plurality of first air vents (131) and a plurality of second air vents (132) arranged on the side wall of the shell (101), wherein the side wall where the plurality of first air vents (131) are arranged is arranged opposite to the side wall where the plurality of second air vents (132) are arranged; The air flow circulating unit generates a first air flow flowing in the transverse direction in the inner cavity of the shell (101) through the first air vent (131), and the first air flow flows out from the first air vent (131), passes through the inner cavity of the shell (101), and then exits the planting device from the second air vent (132); The air flow circulating unit (130) further includes a plurality of third air vents (133) arranged between the liquid supply pipes (122) at the bottom of the inner cavity of the shell (101); The air flow circulating unit (130) forms a second air flow flowing in the longitudinal direction at a position close to the bottom of the inner cavity of the shell (101) through the third air vent (133), and the second air flow and the first air flow can exit the inner cavity of the shell (101) from the second air vent (132), so as to exchange gas between the inside and outside of the planting device, thereby adjusting the temperature of the growth environment of the plants; The pipeline connected with the third air vent (133) is provided with a carbon dioxide storage and release system (140), and in the case that the second air flow is generated at the third air vent (133) to take away the air on the surface of the plant leaves, the carbon dioxide storage and release system (140) releases carbon dioxide and delivers the carbon dioxide to the vicinity of the plant leaves through the third air vent (133); The first air vent (131) and the third air vent (133) are both provided with a first air vent mode for delivering warm air and a second air vent mode for delivering cold air; The control unit (110) can determine the air vent mode of the first air vent (131) and the third air vent (133) based on the growth state of the plants and the temperature of their growth environment, so as to adjust the temperature in the device, thereby ensuring that the temperature of the growth environment of the plants in the device is suitable for their growth state.

7. The plant factory temperature control growing method according to claim 6, characterized by, The plant factory temperature control planting method further comprises: The camera (111) and the temperature sensor (112) collect the plant growth state and the temperature data in the device, and transmit the collected plant growth state and the temperature data in the device to the control unit (110); the control unit (110) determines the growth environment and the temperature range suitable for the growth of the plant based on the plant growth state, and adjusts the temperature of the growth environment of the plant in the planting device according to the temperature data in the device.

Images