An artificial climate chamber for plant phenotype monitoring and automatic climate regulation

Abstract

The application discloses a kind of artificial climate chamber for plant phenotype monitoring and climate automatic regulation, it is related to artificial climate chamber technical field, artificial climate chamber is built-in several cultivation frame, artificial climate chamber includes cabin, regulating device and air distribution device, imaging device is built-in cabin, cabin is equipped with heat preservation cavity and air inlet, air inlet and heat preservation cavity are communicated, air inlet inlet section is equipped with compensation groove, compensation groove and heat preservation cavity are communicated, regulating device includes temperature control assembly and compensation component, compensation component and temperature control assembly are electrically connected, compensation component includes temperature sensing piece, temperature sensing piece includes two sections of material of different thermal expansion coefficients, air distribution device includes fan, fan and air inlet inlet pipeline are communicated, temperature sensing piece one end is inserted into air inlet, and the other end is inserted into compensation groove.In the process of plant cultivation, the plant to be cultivated is placed on the cultivation frame, double-row cultivation frame can be used in the artificial climate chamber, and multiple layers are provided on each cultivation frame to ensure the cultivation efficiency.

Description

Technical Field

[0001] This invention relates to the field of artificial climate chamber technology, specifically an artificial climate chamber for plant phenotyping and automatic climate control. Background Technology

[0002] Artificial climate chambers are generally used in the biopharmaceutical industry. By precisely simulating various climatic conditions, they provide a controllable environment for breeding and seedling cultivation, playing a significant role in plant ecological research, breeding, and disease control.

[0003] Temperature and humidity are the main influencing factors in artificial climate chambers. Due to temperature differences in different regions, time periods, and climates, the intake air temperature needs to be adjusted in real time to ensure air supply quality. However, currently, some temperature adjustments are made by directly circulating the temperature inside the artificial climate chamber, lacking a real-time monitoring and adjustment mechanism, which to some extent affects plant cultivation.

[0004] In addition, existing gas circulation mechanisms mostly use directional air distribution when distributing air, which cannot simulate the growth environment in the natural environment and cannot be adapted to lodging resistance testing. Summary of the Invention

[0005] The purpose of this invention is to provide an artificial climate chamber for plant phenotypic monitoring and automatic climate control, so as to solve the problems of real-time temperature adjustment and directional air distribution in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The artificial climate chamber contains several cultivation racks and includes a cabin, a control device, and a ventilation device. An imaging device is installed inside the cabin.

[0008] The cabin is equipped with an insulation cavity and an air inlet duct. The air inlet duct and the insulation cavity are connected. The inlet section of the air inlet duct is equipped with a compensation groove, which is connected to the insulation cavity.

[0009] The control device includes a temperature control component and a compensation component, which are electrically connected.

[0010] The compensation component includes a temperature sensing element, which consists of two materials with different coefficients of thermal expansion.

[0011] The air distribution device includes a fan;

[0012] The fan and the air inlet pipe are connected. One end of the temperature sensing element is inserted into the air inlet pipe, and the other end is inserted into the compensation groove.

[0013] During plant cultivation, the plants to be cultivated are placed on cultivation racks. The artificial climate chamber can use double-row cultivation racks, with multiple layers on each rack to ensure cultivation efficiency. The insulated chamber, as the main cultivation space, uses a control device to regulate temperature and humidity, and an automatic ventilation system to ensure the necessary environment for cultivation. An imaging device is installed inside the insulated chamber for phenotypic monitoring of the plants, facilitating automatic climate control. The air inlet duct, as the main air supply duct, automatically measures the temperature due to indoor and outdoor temperature differences, especially when cold air is supplied. Based on the temperature difference, the temperature control component adjusts the temperature to ensure accurate climate control. The fan, as the main air supply device, collects gas and introduces it into the air inlet duct. A compensation groove is installed at the inlet section of the air inlet duct. The temperature sensing element, made of thermally conductive material, is fixed at the connection point between the compensation groove and the air inlet duct. It senses the temperature of the gas entering the air inlet duct and the temperature of the gas inside the insulation cavity. When the temperature of the insulation cavity decreases, it automatically increases the temperature through self-circulation air supply. When air supply is in operation, self-circulation air supply is interrupted, and the external air supply is adaptively heated. The temperature sensing element adopts a two-section design, using two materials with different coefficients of thermal expansion. One end is inserted into the air inlet duct, and the other end is inserted into the compensation groove connected to the insulation cavity. When the temperature changes, the temperature sensing element deforms. The degree of deformation is negatively correlated with the internal and external temperature difference; that is, the greater the internal and external temperature difference, the greater the deformation. This allows for automatic detection of the incoming air and improves the accuracy of temperature compensation.

[0014] Furthermore, the temperature sensing element includes a pressure plate, and a tension plate is provided on one side of the pressure plate;

[0015] The compensation assembly also includes a diagonal rod and a compensation coil. The diagonal rod is arranged at an angle, and the diagonal rod and the compensation coil are arranged coaxially. The diagonal rod is made of magnetic material.

[0016] One side of the inclined rod abuts against the pressure plate. The coefficient of thermal expansion of the pressure plate is less than that of the tension plate. The compensation coil is placed in the compensation groove, and the inclined rod and the compensation groove are slidably connected.

[0017] The pressure plate and the tension plate are connected, with the middle section fixed at the connection between the air inlet duct and the compensation groove. The diagonal rod is arranged at an angle, with one end abutting against the pressure plate under the action of gravity and sliding with the compensation groove. Initially, the tension plate and the pressure plate expand due to the temperature of the insulation cavity. Since the thermal expansion coefficient of the pressure plate is smaller than that of the tension plate, the expansion process will cause the tension plate to bend towards the pressure plate. When air needs to be input from the outside, due to the temperature difference between the inside and outside of the insulation cavity, the airflow delivered from the outside is at a lower temperature. At the same temperature, the deformation recovered by the tension plate is greater than that of the pressure plate, causing the pressure plate to deform in the vertical direction. The diagonal rod continues to move downward under the action of gravity. The compensation coil cuts the magnetic field lines and forms a compensation current. The magnitude of the compensation current is negatively correlated with the outside temperature. The lower the outside temperature, the greater the recovery deformation and the greater the induced current. This allows for real-time monitoring of the air inlet temperature. To ensure detection accuracy, the number of coil turns can be increased, or an appropriate amplification circuit can be set according to the compensation current.

[0018] Furthermore, the pressure plate and tension plate are bent and arranged along the air supply direction on one side of the air inlet duct.

[0019] The pressure plates and tension plates are initially bent, meaning their initial state is a deformation caused by the temperature inside the insulation cavity, indicating that the initial temperature meets the requirements for plant cultivation. When the temperature inside the insulation cavity decreases, without external air intake, the pressure plates and tension plates will return to their original shape, allowing for temperature monitoring of the insulation cavity. When external air intake is introduced, the internal temperature of the insulation cavity is kept stable to facilitate temperature compensation for the incoming air. The width of the pressure plates and tension plates is arranged horizontally, perpendicular to their thickness. By arranging them along the airflow direction, the force exerted by the incoming air on the pressure plates and tension plates is reduced, ensuring service life and reducing air resistance.

[0020] Furthermore, the temperature control component includes a slide table and a compensating electromagnet, with a heating tube on the slide table and a retraction spring on one side of the slide table;

[0021] A chute is provided on one side of the air inlet duct;

[0022] The slide table and the slide groove are slidably connected. The compensating electromagnet is placed in the slide groove. The end of the retraction spring away from the slide table is connected to the slide groove. The compensating coil and the compensating electromagnet are electrically connected. The slide table is made of magnetic material. The opposite ends of the compensating electromagnet and the slide table have the same magnetic poles.

[0023] The distance between the slide and the compensation slot is set according to the time required for the detection signal feedback. That is, when the compensation coil detects the inlet air temperature, the corresponding compensation current increases, controlling the input current of the compensation electromagnet. The larger the compensation current, the larger the current input to the compensation electromagnet, meaning a greater magnetic repulsion force on the slide. This results in a longer distance the slide moves along the slide and inserts into the air inlet duct, increasing the contact area between the airflow and the heating element, and thus increasing the instantaneous compensation heat. As the slide moves into the air inlet duct, the contraction spring stretches. When the inlet air temperature rises, the contraction spring causes the slide to retract, facilitating automatic adjustment based on daily temperature changes.

[0024] Furthermore, the control device also includes a humidity control component, which includes a circulating pump, a humidifier, and a humidity sensor. The inlet of the circulating pump is connected to the insulation chamber pipe, and the outlet of the circulating pump is set with two ports. The two outlets of the circulating pump are connected to the air inlet duct and the humidifier pipe, respectively.

[0025] The humidifier terminal is connected to the air inlet duct, and the humidity sensor is placed inside the insulation cavity;

[0026] When humidifying: place the heating element in the sliding groove.

[0027] Humidity is adjusted via a humidification control unit. A circulating pump draws gas from the insulation chamber and directs it to the humidifier. The humidifier automatically compensates for humidity levels detected by a humidity sensor, adjusting its compensation efficiency. After humidification, the gas is introduced into the air inlet duct. The sliding table is arranged in an "L" shape. During humidification, the sliding groove is sealed to prevent moisture from corroding the heating element. The circulating pump has two outlets, for example, using a three-way valve. The two outlets connect to the air inlet duct and the humidifier respectively. During humidification, the circulating pump is not directly connected to the air inlet duct; the circulating gas is directed to the humidifier. During internal circulation heating, the circulating gas is directed directly to the air inlet duct, facilitating temperature compensation.

[0028] Furthermore, the air distribution device also includes an air distribution duct and an air coil, which are movably connected;

[0029] The air distribution duct is equipped with a crossflow channel, and the crossflow channel is equipped with several side flow grooves;

[0030] The fan plate is equipped with a central channel, and several side channels are arranged around the central channel. The side channels have openings on their outer sides.

[0031] The air distribution duct is installed along the insulation cavity, the side flow channel is set with an opening facing the side of the insulation cavity, and the fan is placed in the side flow channel.

[0032] The air distribution ducts are set according to the number of cultivation racks. When cultivation racks are set on both sides of the insulation cavity, corresponding air distribution ducts are also set. The gas brought out through the air inlet duct enters the air distribution duct and is distributed through the air distribution duct. The crossflow channel of the air distribution duct is used for horizontal air supply. When passing through the node where each side flow channel is located, the air is automatically guided by the fan disc and enters the middle channel on the fan disc for automatic gas distribution. It then enters the insulation cavity through the bypass channel jet. The fan disc is movable, so that the jet gas enters the insulation cavity and flows randomly, thereby detecting the lodging resistance of the plants and automatically identifying it through the imaging device.

[0033] As an optimization, a baffle plate is provided on the side flow channel, and the baffle plate has a groove, with the side channel arranged at an angle.

[0034] When rotating: the bypass channel faces the groove on the wind deflector.

[0035] The wind deflector is installed through a side channel, and a groove is set on the wind deflector. When a part of the airflow jets out from the side channel and impacts the groove, the reaction force drives the fan to rotate. During the rotation, the part of the side channel with the outlet facing the insulation cavity forms a multi-directional jet.

[0036] As an optimization, the diameter of the central channel is set to decrease gradually along the air supply direction. By setting the diameter to gradually decrease, part of the airflow is compressed from the central channel and enters the bypass channel, while the other part passes through the central channel and enters the subsequent crossflow channel, thereby achieving multi-point air distribution.

[0037] As an optimization, the imaging device includes a track arranged along the insulation cavity, with an imaging unit mounted at the movable end of the track. The track inside the insulation cavity is used to transport linear displacement, thereby moving the imaging unit for easier observation of the plants. The track can be in the form of a bidirectional module, facilitating observation of plants at different heights.

[0038] Compared with the prior art, the beneficial effects of this invention are as follows: The temperature sensing element adopts a two-section design, using two materials with different coefficients of thermal expansion. One end is inserted into the air inlet duct, and the other end is inserted into a compensation groove connected to the insulation cavity. When the temperature changes, the temperature sensing element deforms. The degree of deformation is negatively correlated with the internal and external temperature difference, that is, the greater the internal and external temperature difference, the greater the deformation. This allows for automatic detection of the incoming air and improves the accuracy of temperature compensation. Initially, the stretching sheet and the pressure sheet expand due to the temperature of the insulation cavity. Since the coefficient of thermal expansion of the pressure sheet is smaller than that of the stretching sheet, the expansion process causes the stretching sheet to bend towards the pressure sheet. When air needs to be input from the outside, due to the temperature difference between the inside and outside of the insulation cavity, the airflow from the outside is at a lower temperature. The deformation recovered by the tension plate is greater than that of the compression plate, causing the compression plate to deform vertically. The inclined rod continues to move downward under the action of gravity. The compensation coil cuts the magnetic field lines and generates a compensation current. The magnitude of the compensation current is negatively correlated with the external temperature. The lower the external temperature, the greater the recovery deformation and the greater the induced current, thus enabling real-time monitoring of the air intake temperature. When the compensation coil detects the air intake temperature, the corresponding compensation current increases, controlling the input current of the compensation electromagnet. The greater the compensation current, the greater the current input to the compensation electromagnet, which means the greater the magnetic repulsion force on the slide table. The longer the slide table moves along the slide groove and inserts into the air intake channel, the larger the contact area between the airflow and the heating tube, and the greater the instantaneous compensation heat. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the internal structure of the cabin of the present invention;

[0041] Figure 3 This is a schematic diagram of the control device structure of the present invention;

[0042] Figure 4 This is a schematic diagram of the compensation component structure of the present invention;

[0043] Figure 5 This is a schematic diagram of the temperature control component structure of the present invention;

[0044] Figure 6 This is a schematic diagram of the air distribution duct and fan coil unit of the present invention.

[0045] In the diagram: 1. Cabin; 11. Insulation cavity; 12. Air inlet duct; 13. Compensation groove; 14. Slide groove; 2. Control device; 21. Temperature control component; 211. Slide table; 212. Heating tube; 213. Contraction spring; 214. Compensating electromagnet; 22. Compensation component; 221. Temperature sensing element; 2211. Pressure plate; 2212. Tension plate; 222. Diagonal bar; 223. Compensating coil; 23. Humidity control component; 231. Circulation pump; 232. Humidifier; 233. Humidity sensor; 3. Air distribution device; 31. Air distribution duct; 311. Crossflow channel; 312. Sideflow groove; 32. Fan coil; 321. Central channel; 322. Bypass channel; 33. Fan; 34. Baffle plate; 4. Imaging device; 41. Track; 42. Imaging unit. Detailed Implementation

[0046] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Example: Figure 1 - Figure 6 As shown, the present invention provides a technical solution for an artificial climate chamber for plant phenotypic monitoring and automatic climate control.

[0048] The artificial climate chamber is equipped with several cultivation racks. The artificial climate chamber includes a chamber 1, a control device 2 and a ventilation device 3. The chamber 1 has an imaging device 4 built in it.

[0049] The cabin 1 is provided with an insulation cavity 11 and an air inlet duct 12. The air inlet duct 12 and the insulation cavity 11 are connected. The inlet section of the air inlet duct 12 is provided with a compensation groove 13. The compensation groove 13 is connected to the insulation cavity 11.

[0050] The control device 2 includes a temperature control component 21 and a compensation component 22, which are electrically connected to the temperature control component 21.

[0051] The compensation component 22 includes a temperature sensing element 221, which comprises two materials with different coefficients of thermal expansion.

[0052] The air distribution device 3 includes a fan 33;

[0053] The fan 33 is connected to the inlet pipe of the air inlet duct 12, and one end of the temperature sensing element 221 is inserted into the air inlet duct 12, and the other end is inserted into the compensation groove 13.

[0054] During plant cultivation, the plants to be cultivated are placed on cultivation racks. The artificial climate chamber can use double-row cultivation racks, with multiple layers on each rack to ensure cultivation efficiency. The insulation chamber 11 serves as the main cultivation space, with temperature and humidity regulated by the control device 2 and automatic ventilation via the air distribution device 3 to ensure the required environment for cultivation. An imaging device 4 is installed inside the insulation chamber 11 for phenotypic monitoring of the plants, facilitating automatic climate control. The air inlet duct 12 serves as the main air supply duct. Due to the temperature difference between indoors and outdoors, especially when cold air is supplied, the compensation component 22 in the compensation tank 13 automatically measures the temperature and controls the temperature control component 21 based on the internal and external temperature difference to ensure accurate climate control. The fan 33, as the main air supply device, collects gas and introduces it into the air inlet duct 12. A compensation groove 13 is installed at the inlet section of the air inlet duct 12. The middle section of the temperature sensing element 221 is fixed at the connection point between the compensation groove 13 and the air inlet duct 12. The temperature sensing element 221 is made of thermally conductive material and is used to sense the temperature of the gas entering the air inlet duct 12 and the temperature of the gas in the insulation cavity 11. When the temperature of the insulation cavity 11 decreases, it automatically increases the temperature through self-circulation air supply. When air supply is in operation, self-circulation air supply is interrupted, and adaptive temperature increase is performed on the external air supply. The temperature sensing element 221 adopts a two-section design, using two sections of materials with different coefficients of thermal expansion. One end is inserted into the air inlet duct 12, and the other end is inserted into the compensation groove 13, which connects to the insulation cavity 11. When the temperature changes, the temperature sensing element 221 deforms. The degree of deformation is negatively correlated with the internal and external temperature difference; that is, the greater the internal and external temperature difference, the greater the deformation. This allows for automatic detection of the incoming air and improves the accuracy of temperature compensation.

[0055] Furthermore, the temperature sensing element 221 includes a pressure plate 2211, and a tension plate 2212 is provided on one side of the pressure plate 2211;

[0056] The compensation component 22 also includes a diagonal rod 222 and a compensation coil 223. The diagonal rod 222 is arranged at an angle, and the diagonal rod 222 and the compensation coil 223 are arranged coaxially. The diagonal rod 222 is made of magnetic material.

[0057] One side of the inclined rod 222 abuts against the pressure plate 2211. The coefficient of thermal expansion of the pressure plate 2211 is less than that of the tension plate 2212. The compensation coil 223 is placed in the compensation groove 13. The inclined rod 222 and the compensation groove 13 are slidably connected.

[0058] The pressure plate 2211 and the tension plate 2212 are connected, with the middle section fixed at the connection between the air inlet duct 12 and the compensation groove 13. The diagonal rod 222 is arranged at an angle, with one end abutting against the pressure plate 2211 under the action of gravity and sliding with the compensation groove 13. Initially, the tension plate 2212 and the pressure plate 2211 expand due to the temperature of the insulation cavity 11. Since the thermal expansion coefficient of the pressure plate 2211 is smaller than that of the tension plate 2212, the expansion process will cause the tension plate 2212 to bend towards the pressure plate 2211. When air needs to be introduced from the outside, due to the temperature of the insulation cavity 11... Due to the temperature difference between the inside and outside, the airflow delivered from the outside is at a lower temperature. Under the same temperature, the deformation recovered by the stretching sheet 2212 is greater than that of the pressure sheet, causing the pressure sheet 2211 to deform in the vertical direction. The inclined rod 222 continues to move downward under the action of gravity. The compensation coil 223 cuts the magnetic field lines and generates a compensation current. The magnitude of the compensation current is negatively correlated with the outside temperature. The lower the outside temperature, the greater the recovery deformation and the greater the induced current. This allows for real-time monitoring of the air inlet temperature. To ensure detection accuracy, the number of coil turns can be increased, or an appropriate amplification circuit can be set according to the compensation current.

[0059] Furthermore, the pressure plate 2211 and the tension plate 2212 are bent and arranged in the width direction along the air supply direction when inserted into the air inlet duct 12.

[0060] The pressure plate 2211 and tension plate 2212 are initially bent, meaning their initial state is a deformation caused by the temperature inside the insulation cavity 11, indicating that the initial temperature inside the insulation cavity 11 meets the requirements for plant cultivation. When the temperature inside the insulation cavity 11 decreases, without external air intake, the pressure plate 2211 and tension plate 2212 will recover their original deformation due to the temperature drop, thus allowing for temperature monitoring of the insulation cavity 11. When external air intake is introduced, the internal temperature of the insulation cavity 11 is kept stable to facilitate temperature compensation for the incoming air. The width of the pressure plate 2211 and tension plate 2212 is arranged in a horizontal direction perpendicular to their thickness. By arranging them along the air supply direction, the force exerted by the incoming air on the pressure plate 2211 and tension plate 2212 is reduced, ensuring their service life and reducing wind resistance.

[0061] Furthermore, the temperature control component 21 includes a slide table 211 and a compensating electromagnet 214. The slide table 211 is provided with a heating tube 212, and a retraction spring 213 is provided on one side of the slide table 211.

[0062] A chute 14 is provided on one side of the air inlet duct 12;

[0063] The slide table 211 and the slide groove 14 are slidably connected. The compensating electromagnet 214 is placed in the slide groove 14. The end of the retraction spring 213 away from the slide table 211 is connected to the slide groove. The compensating coil 223 and the compensating electromagnet 214 are electrically connected. The slide table 211 is made of magnet material. The opposite ends of the compensating electromagnet 214 and the slide table 211 are the same magnetic poles.

[0064] The distance between the slide 14 and the compensation groove 13 is set according to the time required for the detection signal feedback. That is, when the compensation coil 223 detects the air inlet temperature, the corresponding compensation current increases, controlling the input current of the compensation electromagnet 214. The larger the compensation current, the larger the current input to the compensation electromagnet 214, which means the greater the magnetic repulsion force on the slide 211. The longer the slide 211 moves along the slide 14 and inserts into the air inlet duct 12, the larger the contact area between the airflow and the heating tube 212, and the greater the instantaneous compensation heat. When the slide 211 moves into the air inlet duct 12, it stretches the contraction spring 213. When the air inlet temperature rises, the contraction spring 213 drives the slide 211 to retract, facilitating automatic adjustment according to daily temperature changes.

[0065] Furthermore, the control device 2 also includes a humidity control component 23, which includes a circulation pump 231, a humidifier 232 and a humidity sensor 233. The inlet of the circulation pump 231 is connected to the insulation chamber 11, and the outlet of the circulation pump 231 is set with two ports. The two outlets of the circulation pump 231 are respectively connected to the air inlet duct 12 and the humidifier 232.

[0066] The humidifier 232 is connected to the air inlet duct 12, and the humidity sensor 233 is placed inside the insulation cavity 11.

[0067] When humidifying: the heating element 212 is placed in the slide groove 14.

[0068] Humidity is adjusted via the humidification component 23. The circulating pump 231 vents the gas from the insulation chamber 11 and directs it to the humidifier 232. The humidifier 232 automatically compensates for the humidity detected by the humidity sensor 233, adjusting its compensation efficiency. After humidification, the gas is introduced into the air inlet duct 12. The sliding table 211 is arranged in an "L" shape. During humidification, the sliding groove 14 is sealed to prevent moisture from corroding the heating element. The circulating pump 231 has two outlets, for example, using a three-way valve. The two outlets are connected to the air inlet duct 12 and the humidifier 232 respectively. During humidification, the circulating pump 231 is not directly connected to the air inlet duct 12; the circulating gas is directed to the humidifier 232. During internal circulation heating, the circulating gas is not directed to the humidifier 232 but directly to the air inlet duct 12, facilitating temperature compensation.

[0069] Furthermore, the air distribution device 3 also includes an air distribution duct 31 and an air coil 32, with the air coil 32 and the air distribution duct 31 being movably connected.

[0070] The air distribution duct 31 is provided with a crossflow channel 311, and the crossflow channel 311 is provided with a number of side flow grooves 312;

[0071] The fan plate 32 is provided with a central channel 321, and the central channel 321 is provided with several side channels 322 around its circumference. The side channels 322 have openings on their outer sides.

[0072] The air distribution duct 31 is arranged along the insulation cavity 11, the side flow channel 312 is opened on the side facing the insulation cavity 11, and the air fan 32 is placed in the side flow channel 312.

[0073] The air distribution duct 31 is set according to the number of cultivation racks. When cultivation racks are set on both sides of the heat preservation cavity 11, corresponding air distribution ducts 31 are also set. The gas brought out through the air inlet duct 12 enters the air distribution duct 31 and is distributed through the air distribution duct 31. The crossflow channel 311 of the air distribution duct 31 is used for horizontal air supply. When passing through the node where each side flow channel 312 is located, it is automatically guided by the fan plate 32 and enters the middle channel 321 on the fan plate 32 for automatic gas distribution. It is also jetted into the heat preservation cavity 11 through the bypass channel 322. The fan plate 32 is movable so that the jet gas enters the heat preservation cavity 11 and flows randomly, thereby detecting the lodging resistance of the plants and automatically identifying it through the imaging device 4.

[0074] As an optimization, a baffle plate 34 is provided on the side flow channel 312, and a groove is provided on the baffle plate 34. The side channel 322 is arranged at an angle.

[0075] When rotating: the bypass channel 322 faces the groove on the wind deflector 34.

[0076] The baffle plate 34 is installed through the side flow channel 312. The baffle plate 34 is provided with a groove. When a part of the airflow is jetted out from the side channel 322 and impacts the groove, the reaction force pushes the fan 32 to rotate. During the rotation, the part of the side channel 322 with the outlet facing the heat preservation cavity 11 forms a multi-directional jet.

[0077] As an optimization, the diameter of the central channel 321 is set to decrease along the air supply direction. By setting the diameter to gradually decrease, part of the airflow is compressed from the central channel 321 and enters the bypass channel 322, while the other part passes through the central channel 321 and enters the subsequent crossflow channel 311, thereby achieving multi-point air distribution.

[0078] As an optimization, the imaging device 4 includes a track 41 arranged along the insulation cavity 11, with an imaging unit 42 mounted on the movable end of the track 41. The track 41 is installed inside the insulation cavity 11 to transport linear displacement, thereby moving the imaging unit 42 to facilitate observation of the plants. The track 41 can be in the form of a bidirectional module to facilitate observation of plants at different heights.

[0079] The working principle of this invention: The temperature sensing element 221 adopts a two-section design, using two materials with different coefficients of thermal expansion. One end is inserted into the air inlet duct 12, and the other end is inserted into the compensation groove 13, which is connected to the insulation cavity 11. When the temperature changes, the temperature sensing element 221 deforms. The degree of deformation is negatively correlated with the internal and external temperature difference, that is, the greater the internal and external temperature difference, the greater the deformation. This allows for automatic detection of the incoming air and improves the accuracy of temperature compensation. Initially, the tension plate 2212 and the pressure plate 2211 expand due to the temperature of the insulation cavity 11. Since the coefficient of thermal expansion of the pressure plate 2211 is less than that of the tension plate 2212, the expansion process causes the tension plate 2212 to bend towards the pressure plate 2211. When air needs to be input from the outside, due to the temperature difference between the inside and outside of the insulation cavity 11, the airflow from the outside is at a lower temperature. At the same temperature, the tension plate 2212... The deformation recovered by the extension plate 2212 is greater than that of the pressure plate, causing the pressure plate 2211 to deform vertically. The inclined rod 222 continues to move downward under the action of gravity. The compensation coil 223 cuts the magnetic field lines and generates a compensation current. The magnitude of the compensation current is negatively correlated with the external temperature. The lower the external temperature, the greater the recovery deformation and the greater the induced current, thus enabling real-time monitoring of the air intake temperature. When the compensation coil 223 detects the air intake temperature, the corresponding compensation current increases, controlling the input current of the compensation electromagnet 214. The greater the compensation current, the greater the current input to the compensation electromagnet 214, which means the greater the magnetic repulsion force on the slide table 211. The slide table 211 moves along the slide groove 14 and inserts into the air intake duct 12 for a longer length. When the airflow passes through, the contact area with the heating tube 212 is larger, and the instantaneous compensation heat increases.

[0080] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An artificial climate chamber for plant phenotypic monitoring and automatic climate control, wherein the artificial climate chamber contains several cultivation racks, characterized in that: The artificial climate chamber includes a cabin (1), a control device (2) and a wind distribution device (3), and the cabin (1) has an imaging device (4) built in. The cabin (1) is provided with a heat insulation cavity (11) and an air inlet duct (12), the air inlet duct (12) and the heat insulation cavity (11) are connected, and the inlet section of the air inlet duct (12) is provided with a compensation groove (13), the compensation groove (13) and the heat insulation cavity (11) are connected; The control device (2) includes a temperature control component (21) and a compensation component (22), which are electrically connected; The compensation component (22) includes a temperature sensing element (221), which comprises two materials with different coefficients of thermal expansion. The air distribution device (3) includes a fan (33); The fan (33) and the inlet pipe of the air inlet duct (12) are connected. One end of the temperature sensing element (221) is inserted into the air inlet duct (12), and the other end is inserted into the compensation groove (13).

2. The artificial climate chamber for plant phenotypic monitoring and automatic climate control according to claim 1, characterized in that: The temperature sensing element (221) includes a pressure plate (2211), and a tension plate (2212) is provided on one side of the pressure plate (2211). The compensation component (22) also includes a diagonal rod (222) and a compensation coil (223). The diagonal rod (222) is arranged at an angle, and the diagonal rod (222) and the compensation coil (223) are arranged coaxially. The diagonal rod (222) is made of magnetic material. The inclined rod (222) abuts against the pressure plate (2211) on one side. The coefficient of thermal expansion of the pressure plate (2211) is less than that of the tension plate (2212). The compensation coil (223) is placed in the compensation groove (13). The inclined rod (222) and the compensation groove (13) are slidably connected.

3. An artificial climate chamber for plant phenotypic monitoring and automatic climate control according to claim 2, characterized in that: The pressure plate (2211) and tension plate (2212) are bent and are inserted into the air inlet duct (12) on one side and arranged along the air supply direction in the width direction.

4. An artificial climate chamber for plant phenotypic monitoring and automatic climate control according to claim 3, characterized in that: The temperature control component (21) includes a slide (211) and a compensating electromagnet (214). The slide (211) is provided with a heating tube (212) and a retraction spring (213) is provided on one side of the slide (211). A groove (14) is provided on one side of the air inlet duct (12); The slide table (211) and the slide groove (14) are slidably connected. The compensating electromagnet (214) is placed in the slide groove (14). The end of the retraction spring (213) away from the slide table (211) is connected to the slide groove (14). The compensating coil (223) and the compensating electromagnet (214) are electrically connected. The slide table (211) is made of magnet material. The opposite ends of the compensating electromagnet (214) and the slide table (211) are the same magnetic poles.

5. An artificial climate chamber for plant phenotypic monitoring and automatic climate control according to claim 4, characterized in that: The control device (2) also includes a humidity control component (23), which includes a circulation pump (231), a humidifier (232) and a humidity sensor (233). The inlet of the circulation pump (231) is connected to the insulation chamber (11) via a pipe. The outlet of the circulation pump (231) is set with two ports. The two outlets of the circulation pump (231) are connected to the air inlet (12) and the humidifier (232) via pipes, respectively. The humidifier (232) is connected to the air inlet duct (12) at its end, and the humidity sensor (233) is placed inside the heat preservation cavity (11); When humidifying: the heating tube (212) is placed in the groove (14).

6. An artificial climate chamber for plant phenotypic monitoring and automatic climate control according to any one of claims 1 to 5, characterized in that: The air distribution device (3) also includes an air distribution pipe (31) and an air fan (32), which are movably connected to each other. The air distribution duct (31) is provided with a crossflow channel (311), and the crossflow channel (311) is provided with a plurality of side flow grooves (312). The fan plate (32) is provided with a central channel (321), and the central channel (321) is provided with a plurality of side channels (322) around its perimeter, and the side channels (322) are provided with openings on their outer sides; The air distribution pipe (31) is arranged along the insulation cavity (11), the side flow groove (312) is opened on the side facing the insulation cavity (11), and the fan plate (32) is placed in the side flow groove (312).

7. An artificial climate chamber for plant phenotypic monitoring and automatic climate control according to claim 6, characterized in that: The side flow channel (312) is provided with a baffle plate (34), the baffle plate (34) is provided with a groove, and the bypass channel (322) is arranged at an angle; When rotating: the bypass channel (322) faces the groove on the baffle plate (34).

8. An artificial climate chamber for plant phenotypic monitoring and automatic climate control according to claim 6, characterized in that: The diameter of the central channel (321) is set to decrease along the air supply direction.

9. An artificial climate chamber for plant phenotypic monitoring and automatic climate control according to claim 1, characterized in that: The imaging device (4) includes a track (41) arranged along the heat preservation cavity (11), and an imaging unit (42) is provided at the movable end of the track (41).

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