A control system for regulating temperature and humidity in a greenhouse
By installing a rotatable adjustment plate and a flexible light-transmitting plate on the top of the greenhouse, combined with the water circulation system, the problem of temperature and humidity regulation in greenhouses in high-altitude areas is solved, and adaptive adjustment of temperature and humidity and energy efficiency are achieved.
Patent Information
- Application Number
- CN202411687239.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2044-11-25
AI Technical Summary
In high-altitude areas with large temperature difference between day and night and high light intensity, it is difficult to stabilize the temperature and humidity control in greenhouses, which affects plant growth.
The adjustment device consisting of a rotatable adjustment plate and a flexible light-transmitting plate is adopted, combined with the water circulation system, by adjusting the light-transmitting and breathability, using solar energy to store and release heat energy, and combining with the spray device to achieve adaptive control of temperature and humidity.
It realizes rapid response and stable regulation of temperature and humidity in the greenhouse, reduces energy consumption, and ensures the suitability of the plant growth environment.
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Figure CN119536427B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of temperature and humidity regulating systems, and in particular to a control system for regulating temperature and humidity in a greenhouse. Background Art
[0002] The information disclosed in the background of the invention is only intended to enhance understanding of the overall background of the invention and should not necessarily be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.
[0003] Temperature and humidity stability within greenhouses are crucial factors influencing plant growth; abnormal temperatures can impact normal plant growth. However, at higher altitudes, abundant daylight leads to dry air, and the climate is highly variable, with large temperature swings between day and night. This poses significant challenges to maintaining stable temperature and humidity within greenhouses. Therefore, it is necessary to develop a targeted temperature and humidity control system. Summary of the Invention
[0004] In response to the problems existing in the prior art, the purpose of the present invention is to provide a control system for regulating the temperature and humidity in a greenhouse, aiming to solve the problem of temperature and humidity control in a greenhouse in a climate zone with large temperature difference between day and night and strong light intensity at high altitudes.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A control system for regulating temperature and humidity in a greenhouse, comprising a controller, a temperature sensor, a humidity sensor and a spraying device, and also comprising a regulating device for regulating temperature and humidity;
[0007] The adjustment device includes a plurality of adjustment plates rotatably arranged and mounted between a left mounting frame and a right mounting frame located on the top of the greenhouse, a flexible light-transmitting plate is provided between two adjacent adjustment plates, one side of each of the flexible light-transmitting plates can be slidably mounted on the bottom of the corresponding adjustment plate, the flexible light-transmitting plate includes a flexible light-transmitting body and an adjustment portion, the adjustment portion includes a ventilating portion and an elastic sliding portion, and the elastic sliding portion includes a slider and a first spring;
[0008] The adjustment plates are arranged in a first adjustment group and a second adjustment group, and the adjustment plates of the first adjustment group and the second adjustment group are arranged alternately. A first drive assembly is provided at the end of the first adjustment group, and a second drive assembly is provided at the end of the second adjustment group. The first drive assembly is driven to rotate by a first drive device, and the second drive assembly is driven to rotate by a second drive device. The rotation directions of the first drive device and the second drive device are arranged in opposite directions. The first drive device and the second drive device are driven to rotate relative to each other, thereby changing the light transmittance between the two adjacent adjustment plates and exposing the air permeable portion, or the air permeable portion is reset under the action of the first drive device and the first spring.
[0009] The drive assembly includes a drive plate, a drive shaft, a water-permeable gear disc, a first sealed bearing and a second sealed bearing;
[0010] The driving plate and the water-permeable toothed disc are respectively arranged at both ends of the water-permeable toothed disc, and the driving plate cooperates with the corresponding driving device for driving;
[0011] A first cavity is provided in each of the adjustment plates, a toothed disc sleeve that meshes with the water-permeable toothed disc is provided at the end of the first cavity, the water-permeable toothed disc is provided with a plurality of water-permeable holes, the outer side of the toothed disc sleeve is mounted on the mounting seat cylinder through a first sealed bearing, the mounting seat cylinder is fixedly mounted on the left mounting frame and the right mounting frame, the left mounting frame and the right mounting frame are provided with adapted water-through holes, the left mounting frame and the right mounting frame are both provided with a second cavity, the drive shaft passes through the mounting seat cylinder, the water-through holes and the second cavity, and is rotatably mounted on the left mounting frame and the right mounting frame through the second sealed bearing;
[0012] The first cavity, the water permeable hole, the water through hole and the second cavity together constitute a water circulation channel, and the water circulation channel is connected to the heat-insulating water storage device;
[0013] The thermal insulation water storage device includes a plurality of thermal insulation water storage units, each thermal insulation water storage unit is provided with a corresponding solenoid valve, a first water thermometer is provided on the inlet side of the thermal insulation water storage device, and a second water thermometer is provided in each thermal insulation water storage unit;
[0014] A plurality of light sensors are also dispersedly arranged in the greenhouse. The controller is electrically connected to the light sensor, temperature sensor, humidity sensor, first water thermometer, second water thermometer, solenoid valve, spray device, first drive device and second drive device. By controlling the first drive device and the second drive device to adjust the transmittance and air permeability of the adjusting device, by controlling the spray device to spray water for humidification, and by introducing circulating water of different temperatures into the water circulation channel, the temperature and humidity in the greenhouse are adaptively controlled to maintain stability.
[0015] Preferably, the ventilation portion is provided with a plurality of ventilation holes, and an adaptive sealing layer is provided at the place where the ventilation portion and the adjustment plate cooperate;
[0016] The adjustment plate is provided with a sliding groove adapted to the sliding block, an end plate is fixed to the end of the sliding groove, and the first spring is installed on the inner side of the end plate.
[0017] Preferably, the other side of the flexible light-transmitting body is integrated with the end plate.
[0018] Preferably, the driving device comprises a pull rope and a winch respectively linked to the first driving plate and the second driving plate;
[0019] One end of the pull rope is matched with the corresponding winch, and the other end is provided with a second spring.
[0020] Preferably, the left mounting bracket and the right mounting bracket are respectively provided with a water inlet pipe and a water outlet pipe, and are both provided with corresponding fixing seats.
[0021] Preferably, the first drive plate and the second drive plate are both provided with small holes for connecting and fixing corresponding pull ropes;
[0022] The left mounting frame and the right mounting frame are provided with an adaptive mounting platform at the locations where they cooperate with the mounting seat cylinder;
[0023] A sealing gasket is provided between the mounting platform and the mounting seat cylinder.
[0024] Preferably, the surface of the regulating plate is provided with a solar particle heat-absorbing coating.
[0025] Preferably, the controller adopts an adaptive control algorithm model to adaptively control the temperature and humidity in the greenhouse to maintain stability;
[0026] The adaptive control algorithm model is:
[0027]
[0028] Where R is the square sum of the deviations of each environmental parameter from its ideal value, T dev 、H dev 、S dev are the deviations between the actual values of temperature, humidity, and light intensity and their ideal values, -α is the deviation penalty coefficient, β is the reward value, and -γ is the fixed deviation penalty value;
[0029] Preferably, the ideal range of temperature is 20°C to 28°C, the ideal range of humidity is 60% to 80%, and the ideal range of light intensity is 3000 to 5000 lux;
[0030] The light transmittance adjustment range and the air permeability adjustment range of the adjustment device are both 0-100%.
[0031] Preferably, the thermal insulation water storage device is an underground thermal insulation water storage device, and the controller automatically performs circulation of a single or multiple thermal insulation water storage units based on analysis of data from the first water thermometer, the second water thermometer and the temperature sensor.
[0032] The present invention includes but is not limited to the following beneficial effects:
[0033] By intelligently controlling the light and air permeability of the panels, combined with a water circulation system, we achieve comprehensive control of the greenhouse's temperature and humidity. This integrated control mechanism rapidly responds to changes in the external environment, ensuring optimal temperature and humidity conditions are maintained within the greenhouse.
[0034] The heat-absorbing plate utilizes circulating water to effectively convert solar heat into internal heat within the greenhouse, reducing energy consumption. This effectively addresses the significant temperature swings between day and night in high-altitude or extreme climates. By storing solar heat in the water during the day and releasing it at night, while simultaneously utilizing some cold water for cooling, this creates an effective temperature buffer system, ensuring stable internal greenhouse temperatures.
[0035] The coordinated design of the adjustment plate and the flexible light-transmitting plate not only ensures the rational regulation of light, but also realizes the effective control and regulation of gas exchange inside and outside the greenhouse through the design of the breathable part and sealing measures. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 This is a control flow diagram of the system;
[0037] Figure 2 This is a schematic diagram of the working process of the thermal insulation water storage device;
[0038] Figure 3 Schematic diagram of the overall structure of the regulating device;
[0039] Figure 4 for Figure 3 Schematic diagram of the enlarged structural state at A in the middle;
[0040] Figure 5 This is a schematic diagram of the installation structure for installing the seat tube;
[0041] Figure 6 Schematic diagram of the internal structure of the adjustment plate;
[0042] Figure 7 for Figure 6 Schematic diagram of the enlarged structural state at B in the middle;
[0043] Figure 8 for Figure 6Schematic diagram of the enlarged structural state at C in the middle;
[0044] Figure 9 for Figure 6 Schematic diagram of the cross-sectional structure along the DD direction;
[0045] Figure 10 This is a structural diagram of the thermal insulation water storage device.
[0046] The reference numerals involved in the accompanying drawings are: 100, adjusting device; 1, adjusting plate; 11, mounting seat cylinder; 12, toothed disc sleeve; 13, first sealed bearing; 14, sealing layer; 15, slide groove; 16, water-permeable toothed disc; 161, water-permeable hole; 17, driving shaft; 18, driving plate; 19, second sealed bearing; 2, flexible light-transmitting plate; 21, sliding part; 22, air vent; 23, slider; 24, first spring; 25, end plate; 3, left mounting bracket; 31, water inlet pipe; 4, right mounting bracket; 41, water outlet pipe; 5, first driving device; 6, second driving device; 7, fixing seat; 8, second spring; 9, thermal insulation water storage unit. DETAILED DESCRIPTION
[0047] The present invention will be further described below with reference to specific embodiments and accompanying drawings.
[0048] Figures 1 to 10 A control system for regulating temperature and humidity in a greenhouse is presented, comprising a controller and a temperature sensor, a humidity sensor and a spraying device arranged in the greenhouse, and also comprising a regulating device 100 for regulating temperature and humidity;
[0049] The adjustment device 100 includes several adjustment plates 1 that are rotatably arranged and installed between the left mounting frame 3 and the right mounting frame 4 located on the top of the greenhouse. A flexible light-transmitting plate 2 is arranged between two adjacent adjustment plates 1. One side of the flexible light-transmitting plate 2 can be slidably installed on the bottom of the corresponding adjustment plate 1. The flexible light-transmitting plate 2 includes a flexible light-transmitting body and an adjustment part. The adjustment part includes a breathable part and an elastic sliding part 21. The elastic sliding part 21 includes a slider 23 and a first spring 24. There are many options for the material of the flexible light-transmitting plate 2, which can be selected according to the actual application situation. In this embodiment, polycarbonate is used, which has good flexibility while maintaining high transparency. Of course, other plastic materials can also be used.
[0050] The adjustment plates 1 are distributed and arranged into a first adjustment group and a second adjustment group. The adjustment plates 1 of the first adjustment group and the second adjustment group are arranged alternately. A first drive assembly is provided at the end of the first adjustment group, and a second drive assembly is provided at the end of the second adjustment group. The first drive assembly is driven to rotate by a first drive device 5, and the second drive assembly is driven to rotate by a second drive device 6. The rotation directions of the first drive device 5 and the second drive device 6 are arranged in opposite directions. The first drive device 5 and the second drive device 6 are driven by the first drive device 5 and the second drive device 6, so that the two adjacent adjustment plates 1 rotate relative to each other, thereby changing the transmittance between the two, and at the same time exposing the air permeable portion, or completing the reset under the action of the air permeable portion and the first spring 24;
[0051] The drive assembly includes a drive plate 18, a drive shaft 17, a water-permeable toothed disc 16, a first sealed bearing 13 and a second sealed bearing 19;
[0052] The driving plate 18 and the water-permeable toothed disc 16 are respectively arranged at both ends of the water-permeable toothed disc 16, and the driving plate 18 cooperates with the corresponding driving device to drive;
[0053] Each of the adjustment plates 1 is provided with a first cavity, and the end of the first cavity is provided with a toothed disc sleeve 12 that meshes with the water-permeable toothed disc 16, and the water-permeable toothed disc 16 is provided with a plurality of water-permeable holes 161, and the outer side of the toothed disc sleeve 12 is mounted on the mounting seat cylinder 11 through a first sealed bearing 13, and the mounting seat cylinder 11 is fixedly mounted on the left mounting bracket 3 and the right mounting bracket 4, and the left mounting bracket 3 and the right mounting bracket 4 are provided with an adaptive water-through hole, and the left mounting bracket 3 and the right mounting bracket 4 are both provided with a second cavity, and the drive shaft 17 passes through the mounting seat cylinder 11, the water-through hole and the second cavity, and is rotatably mounted on the left mounting bracket 3 and the right mounting bracket 4 through the second sealed bearing 19; the left mounting bracket 3 and the right mounting bracket 4 are provided with an adaptive mounting platform at the position where they cooperate with the mounting seat cylinder 11, and in order to increase the thickness to facilitate the connection and fixation of the threaded assembly, a sealing gasket is provided between the mounting platform and the mounting seat cylinder 11 to achieve sealing;
[0054] The first cavity, the water permeable hole 161, the water hole and the second cavity together constitute a water circulation channel, and the water circulation channel is connected to the heat-insulating water storage device;
[0055] The thermal insulation water storage device includes a plurality of thermal insulation water storage units 9, each thermal insulation water storage unit 9 is provided with a corresponding solenoid valve, a first water thermometer is provided on the inlet side of the thermal insulation water storage device, and a second water thermometer is provided in each thermal insulation water storage unit 9;
[0056] A plurality of light sensors are also dispersedly arranged in the greenhouse. The controller is electrically connected to the light sensor, temperature sensor, humidity sensor, first water thermometer, second water thermometer, solenoid valve, spray device, first drive device 5 and second drive device 6. By controlling the first drive device 5 and the second drive device 6 to adjust the transmittance and air permeability of the adjustment device 100, by controlling the spray device to spray water for humidification, and by introducing circulating water of different temperatures into the water circulation channel, the temperature and humidity in the greenhouse are adaptively controlled to maintain stability.
[0057] Specifically, the ventilation portion is provided with a plurality of ventilation holes 22, and an adaptive sealing layer 14 is provided at the place where the ventilation portion cooperates with the adjustment plate 1, so as to achieve a sealed state of the top of the greenhouse when ventilation is not required. The sealing on both sides is also easy to solve. For example, a sealing plate is provided below the left mounting frame 3 and the right mounting frame 4, and a ball and a sealing brush are provided near the bottom of the end of the adjustment plate 1. A slideway adapted to the ball is provided on the sealing plate to achieve sealing on both sides. This technology is not the focus of the present invention, so it will not be described in detail.
[0058] The adjustment plate 1 is provided with a slide groove 15 adapted to the slider 23 , an end plate 25 is fixed to the end of the slide groove 15 , and the first spring 24 is installed inside the end plate 25 , so that elastic reset can be achieved.
[0059] The other side of the flexible light-transmitting body is integrated with the end plate 25 , which solves the connection problem between the flexible light-transmitting body and the adjustment plate 1 and is more stable.
[0060] The driving device includes a pull rope and a winch respectively connected to the first driving plate 18 and the second driving plate 18, or an adapted pull rod and a telescopic driving device, such as an electric cylinder;
[0061] One end of the pull rope engages with a corresponding hoist, and the other end is provided with a second spring 8, which is used to cooperate with pulling the adjustment plate 1 to rotate and reset. Pulling the pull rope through the hoist can drive the automatic rotation of the adjustment plate 1, thereby achieving automated control. Specifically, the first and second drive plates 18 are each provided with a small hole that is connected and fixed with the corresponding pull rope;
[0062] The left mounting frame 3 and the right mounting frame 4 are respectively provided with a water inlet pipe 31 and a water outlet pipe 41 and interfaces thereof for easy installation and connection, and are both provided with corresponding fixing seats 7 for further facilitating installation.
[0063] The surface of the regulating plate 1 is provided with a solar energy particle heat absorption coating, which is black and covered with evenly distributed coating particle sand to improve heat absorption efficiency.
[0064] The controller uses an adaptive control algorithm model to adaptively control the temperature and humidity in the greenhouse to maintain stability;
[0065] The adaptive control algorithm model is:
[0066]
[0067] Where, is the square sum of the deviations of each environmental parameter from its ideal value, T dev 、H dev 、S dev α, β, and γ are the deviations between the actual values of temperature, humidity, and light intensity and their ideal values, respectively. -α is the deviation penalty coefficient, ranging from -1 to -0.1. β is the reward value, ranging from 50 to 500. -γ is the fixed deviation penalty value, ranging from -1000 to -100. In practice, the specific values of α, β, and γ should be adjusted based on factors such as the actual greenhouse environment, plant species, and seasonal changes to achieve optimal control. In practice, initial values can be selected within the recommended ranges. Then, by observing system performance and crop growth, gradual optimization and adjustment can be made to achieve optimal temperature and humidity control.
[0068] The ideal range of temperature is 20°C to 28°C, the ideal range of humidity is 60% to 80%, and the ideal range of light intensity is 3000 to 5000 lux;
[0069] The light transmittance adjustment range and the air permeability adjustment range of the adjustment device 100 are both 10-100%, representing closing the light transmittance to fully opening, and the actual adjustment is performed according to system analysis.
[0070] This system integrates temperature and humidity sensors and light sensors to monitor environmental parameters in the greenhouse, and automatically adjusts water vapor circulation and controls humidity through algorithm analysis.
[0071] The thermal insulation water storage device is an underground thermal insulation water storage device. Since the deep underground layer has a relatively constant and heat-insulating response to light and temperature differences, the soil temperature deep underground is relatively stable and is less affected by ground temperature fluctuations. Therefore, it can serve as a natural temperature buffer zone, which can greatly reduce the impact of light and temperature differences. In addition, since the underground environment is isolated from the direct influence of light, the thermal insulation water storage unit can avoid the rapid evaporation of water and excessive temperature caused by direct sunlight, making water management and temperature regulation more efficient. The controller automatically performs a single or multiple thermal insulation water storage units 9 in combination with each other based on the data from the first water thermometer, the second water thermometer and the temperature sensor after analysis.
[0072] This system uses an adaptive control algorithm model that dynamically analyzes environmental parameters and automatically adjusts control strategies to ensure the greenhouse environment remains close to ideal conditions. This not only improves control accuracy but also reduces manual intervention, enhancing the system's automation and intelligence.
[0073] Working Principle: The temperature and humidity control system of the present invention is provided with an adjustment device 100, which includes a plurality of adjustment plates 1 arranged at intervals. Each adjustment plate 1 is rotatable to change the light transmittance between two adjacent adjustment plates 1. By adjusting the degree of direct sunlight, the temperature in the greenhouse can be regulated. At the same time, in conjunction with the water circulation system, circulating water of different temperatures is introduced into the adjustment plates 1, and the temperature is increased and decreased in multiple stages in a coordinated manner. In addition, the rotation of the adjustment plates 1 can cause the flexible light-transmitting plates 2 to slide, thereby exposing the air permeable portion to achieve ventilation. In conjunction with the spray device, the humidity in the greenhouse can be regulated.
[0074] In the above, the temperature and humidity in the greenhouse are coordinated by adjusting the degree of direct sunlight, water circulation, air permeability and water spraying amount.
[0075] During the day, the regulating device 100 can use the regulating plate 1 to absorb the heat energy generated by sunlight, and through dynamic water circulation, the water that absorbs heat is stored in the corresponding thermal insulation water storage unit 9 in sequence after reaching the corresponding temperature; at night, the hot water stored during the day is used to maintain the temperature in the greenhouse through heat exchange by combining it with water of different temperatures; at the same time, due to the heat exchange, some of the thermal insulation water storage units 9 store ice water that has been cooled to the corresponding temperature. In this way, during the day, the ice water that has undergone heat exchange can be used to continue to maintain the temperature in the greenhouse. This reciprocating cycle can achieve temperature and humidity stability for greenhouses in areas with sudden temperature differences and sufficient light intensity.
[0076] In summary, the temperature and humidity control system of the present invention solves the problem of temperature and humidity control in greenhouses in high-altitude areas with large temperature differences between day and night and strong light intensity. The core is the adjustment device 100, which consists of a rotatable adjustment plate 1 installed on the top of the greenhouse. Flexible light-transmitting adjustment plates 1 are installed between the plates. They can not only adjust the transmittance to affect the temperature, but also maintain the temperature in the greenhouse through its internal water circulation. They can also adjust the humidity through the air permeable part, realizing the comprehensive control of light, temperature and humidity. Real-time adjustment is made according to environmental parameters to ensure that the most suitable conditions are maintained in the greenhouse. Optimizing resource utilization, it provides an efficient and intelligent environmental control solution for modern agriculture.
[0077] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.
[0078] The terms "upper," "lower," "outer," "inner," and the like, if used in the present description and claims, and in the accompanying drawings, are used to distinguish relative positions and are not necessarily qualitative. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions.
[0079] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A control system for regulating temperature and humidity in a greenhouse, comprising a controller, a temperature sensor, a humidity sensor, and a spraying device, characterized in that: Also included are regulating devices for adjusting temperature and humidity; The adjustment device includes a plurality of adjustment plates rotatably arranged and mounted between a left mounting frame and a right mounting frame located on the top of the greenhouse, a flexible light-transmitting plate is provided between two adjacent adjustment plates, one side of each of the flexible light-transmitting plates can be slidably mounted on the bottom of the corresponding adjustment plate, the flexible light-transmitting plate includes a flexible light-transmitting body and an adjustment portion, the adjustment portion includes a ventilating portion and an elastic sliding portion, and the elastic sliding portion includes a slider and a first spring; The adjustment plates are arranged in a first adjustment group and a second adjustment group, and the adjustment plates of the first adjustment group and the second adjustment group are arranged alternately. A first drive assembly is provided at the end of the first adjustment group, and a second drive assembly is provided at the end of the second adjustment group. The first drive assembly is driven to rotate by a first drive device, and the second drive assembly is driven to rotate by a second drive device. The rotation directions of the first drive device and the second drive device are arranged in opposite directions. The first drive device and the second drive device are driven to rotate relative to each other, thereby changing the light transmittance between the two adjacent adjustment plates and exposing the air permeable portion, or the air permeable portion is reset under the action of the first drive device and the first spring. The drive assembly includes a drive plate, a drive shaft, a water-permeable gear disc, a first sealed bearing and a second sealed bearing; The driving plate and the water-permeable toothed disc are respectively arranged at both ends of the water-permeable toothed disc, and the driving plate cooperates with the corresponding driving device for driving; A first cavity is provided in each of the adjustment plates, a toothed disc sleeve that meshes with the water-permeable toothed disc is provided at the end of the first cavity, the water-permeable toothed disc is provided with a plurality of water-permeable holes, the outer side of the toothed disc sleeve is mounted on the mounting seat cylinder through a first sealed bearing, the mounting seat cylinder is fixedly mounted on the left mounting frame and the right mounting frame, the left mounting frame and the right mounting frame are provided with adapted water-through holes, the left mounting frame and the right mounting frame are both provided with a second cavity, the drive shaft passes through the mounting seat cylinder, the water-through holes and the second cavity, and is rotatably mounted on the left mounting frame and the right mounting frame through the second sealed bearing; The first cavity, the water permeable hole, the water through hole and the second cavity together constitute a water circulation channel, and the water circulation channel is connected to the heat-insulating water storage device; The thermal insulation water storage device includes a plurality of thermal insulation water storage units, each thermal insulation water storage unit is provided with a corresponding solenoid valve, a first water thermometer is provided on the inlet side of the thermal insulation water storage device, and a second water thermometer is provided in each thermal insulation water storage unit; A plurality of light sensors are also dispersedly arranged in the greenhouse. The controller is electrically connected to the light sensor, temperature sensor, humidity sensor, first water thermometer, second water thermometer, solenoid valve, spray device, first drive device and second drive device. By controlling the first drive device and the second drive device to adjust the transmittance and air permeability of the adjusting device, by controlling the spray device to spray water for humidification, and by introducing circulating water of different temperatures into the water circulation channel, the temperature and humidity in the greenhouse are adaptively controlled to maintain stability.
2. The control system for regulating temperature and humidity in a greenhouse according to claim 1, characterized in that: The ventilation part is provided with a plurality of ventilation holes, and an adaptive sealing layer is provided at the place where the ventilation part and the adjustment plate are matched; The adjustment plate is provided with a sliding groove adapted to the sliding block, an end plate is fixed to the end of the sliding groove, and the first spring is installed on the inner side of the end plate.
3. The control system for regulating temperature and humidity in a greenhouse as claimed in claim 2, characterized in that: The other side of the flexible light-transmitting body is integrated with the end plate.
4. The control system for regulating temperature and humidity in a greenhouse according to claim 1, characterized in that: The driving device includes a pull rope and a winch respectively connected to the first driving plate and the second driving plate; One end of the pull rope is matched with the corresponding winch, and the other end is provided with a second spring.
5. The control system for regulating temperature and humidity in a greenhouse as claimed in claim 4, characterized in that: The left mounting frame and the right mounting frame are respectively provided with a water inlet pipe and a water outlet pipe, and are both provided with corresponding fixing seats.
6. The control system for regulating temperature and humidity in a greenhouse according to claim 5, characterized in that: The first drive plate and the second drive plate are both provided with small holes for connecting and fixing corresponding pull ropes; The left mounting frame and the right mounting frame are provided with an adaptive mounting platform at the locations where they cooperate with the mounting seat cylinder; A sealing gasket is provided between the mounting platform and the mounting seat cylinder.
7. The control system for regulating temperature and humidity in a greenhouse according to claim 1, characterized in that: The surface of the regulating plate is provided with a solar energy particle heat absorption coating.
8. The control system for regulating temperature and humidity in a greenhouse according to claim 1, characterized in that: The controller uses an adaptive control algorithm model to adaptively control the temperature and humidity in the greenhouse to maintain stability; The adaptive control algorithm model is: ; Where, R is the sum of squares of deviations of each environmental parameter from its ideal value, 、 、 are the deviations between the actual values of temperature, humidity and light intensity and their ideal values, is the deviation penalty coefficient, ranging from -1 to -0.1, is the reward value, ranging from 50 to 500, It is a fixed deviation penalty value, ranging from -1000 to -100.
9. The control system for regulating temperature and humidity in a greenhouse according to claim 8, characterized in that: The ideal range of temperature is 20°C to 28°C, the ideal range of humidity is 60% to 80%, and the ideal range of light intensity is 3000 to 5000 lux; The light transmittance adjustment range and the air permeability adjustment range of the adjustment device are both 0~100%.
10. The control system for regulating temperature and humidity in a greenhouse according to claim 1, characterized in that: The thermal insulation water storage device is an underground thermal insulation water storage device. The controller automatically performs a single cycle or a combined cycle of multiple thermal insulation water storage units based on analysis of data from the first water thermometer, the second water thermometer, and the temperature sensor.
Citation Information
Patent Citations
Lighting-rate-adjustable efficient temperature control type energy-saving greenhouse structure and temperature control method thereof
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shangri-la-rollo
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