Intelligent greenhouse system for plateau meadow maintenance
By using grid temperature sensors, edge computing gateways, and differentiated heating tubes, solar collectors, and phase change materials in the plateau meadow greenhouse, the problem of temperature fluctuations at the entrances and exits of the plateau meadow was solved, precise temperature control and stability were achieved, and the growth environment of the meadow was improved.
Patent Information
- Application Number
- CN202521644316.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-04
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2035-08-04
AI Technical Summary
The temperature in the entrance and exit areas of existing greenhouses in plateau areas fluctuates violently, and traditional temperature monitoring and control equipment cannot respond accurately, resulting in unstable meadow growth and low survival rate.
Grid-distributed temperature sensors and edge computing gateways combined with 4G/Beidou dual-mode communication enable all-round temperature monitoring and rapid data processing. The differentiated arrangement of heating tubes, solar collectors, photovoltaic panels, refrigeration equipment, and phase change materials effectively addresses inlet and outlet temperature fluctuations.
It realizes all-around monitoring and precise control of the temperature in the greenhouse, improves the growth stability and survival rate of the meadow, adapts to the complex environment of the plateau, reduces dependence on the external power grid, and improves the stability and environmental protection of the energy supply.
Smart Images

Figure CN223402931U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plateau meadow maintenance, in particular to an intelligent greenhouse system for plateau meadow maintenance. Background Art
[0002] In plateau regions, greenhouses are often used to increase the survival rate of meadow plants. However, existing greenhouses present significant practical challenges: frequent entry and exit of people during the day causes drastic temperature fluctuations at the entrances and exits due to the frequent intrusion of the external environment. These rapid and drastic temperature changes can adversely affect the growth of meadows near the entrances and exits, leading to unstable growth and reduced survival rates.
[0003] Conventional greenhouse temperature control methods are relatively simple, often relying solely on crude overall environmental regulation. They lack precise temperature management for specific entrance and exit areas. The distribution of temperature monitoring points is illogical, making it difficult to comprehensively and accurately capture temperature changes in these areas. Furthermore, the layout of temperature control equipment fails to consider the specific needs of these areas, making it unable to quickly respond to and compensate for temperature fluctuations in these areas. This results in low temperature control accuracy and stability, making it difficult to meet the stringent growing environment requirements of plateau meadows. Utility Model Content
[0004] In order to overcome the above-mentioned technical problems existing in the prior art, an embodiment of the utility model provides an intelligent greenhouse system for plateau meadow maintenance, which realizes blind-angle monitoring of the temperature inside the greenhouse body through grid-distributed temperature sensors, and makes data collection more comprehensive; through differentiated arrangement of heating pipes, the problem of inlet and outlet temperature fluctuations is solved in a targeted manner, thereby improving the temperature control accuracy.
[0005] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides an intelligent greenhouse system for plateau meadow maintenance, including a greenhouse body and a temperature control device, wherein the temperature control device includes: multiple temperature sensors, which are distributed in a grid pattern inside the greenhouse body; an edge computing gateway connected to all the temperature sensors, and the edge computing gateway includes an STM32-based processor, and the processor is connected to the cloud server / host computer via 4G / Beidou dual-mode communication; a stacking rack for placing turf is provided inside the greenhouse body, and a heating pipe is provided at the bottom of the stacking rack, and the arrangement density of the heating pipes near the entrance and exit of the greenhouse body is greater than the arrangement density of the heating pipes located in the middle of the greenhouse body.
[0006] Preferably, the arrangement density of the temperature sensors is one per 50 m2 in the greenhouse body.
[0007] Preferably, the plateau meadow maintenance intelligent greenhouse system also includes: a solar collector arranged on the top of the greenhouse body, the solar collector is connected to the heating pipe through a pipeline, circulating water is provided in the pipeline, and the solar collector is electrically connected to the processor.
[0008] Preferably, the plateau meadow maintenance intelligent greenhouse system also includes: a solar photovoltaic panel, which is laid on the top of the greenhouse body, and the solar photovoltaic panel is connected to the solar collector and the edge computing gateway to provide energy.
[0009] Preferably, the solar thermal collector is a lightweight vacuum tube collector, and the model of the lightweight vacuum tube collector is Sunsrain HRC-58.
[0010] Preferably, the plateau meadow maintenance intelligent greenhouse system further includes: a refrigeration device and a cold air vent connected to the refrigeration device, and the refrigeration device is electrically connected to the solar photovoltaic panel and the processor respectively.
[0011] Preferably, the arrangement density of the cold air vents in the middle of the greenhouse body is higher than the arrangement density of the cold air vents at the entrance and exit of the greenhouse body.
[0012] Preferably, the plateau meadow maintenance intelligent greenhouse system further includes: a thermostat arranged at the entrance and exit of the greenhouse body, and the thermostat is filled with phase change material.
[0013] Preferably, the phase change material is a paraffin wax / expanded graphite composite material, and the phase change point of the paraffin wax / expanded graphite composite material is 10°C.
[0014] Through the technical solution provided by the utility model, the utility model has at least the following technical effects:
[0015] Grid-distributed temperature sensors enable comprehensive temperature monitoring inside the greenhouse, while edge computing gateways process data locally, enabling faster responses. Combined with 4G / Beidou dual-mode communication and cloud server / host computer connections, this ensures stable data transmission in the complex plateau environment. Finally, differentiated heating tube layouts address inlet and outlet temperature fluctuations, improving temperature control accuracy.
[0016] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:
[0018] Figure 1 This is a front view structural diagram of an intelligent greenhouse system for maintaining a plateau meadow provided by an embodiment of the utility model;
[0019] Figure 2 This is a side structural schematic diagram of an intelligent greenhouse system for maintaining a plateau meadow provided by an embodiment of the present utility model, with the refrigeration equipment removed.
[0020] Description of Reference Numerals
[0021] 1-Greenhouse body, 2-Temperature sensor, 3-Stacking rack, 4-Heating pipe, 5-Entrance and exit, 6-Solar collector, 7-Solar photovoltaic panel, 8-Pipeline, 9-Refrigeration equipment, 10-Cold air outlet, 11-Thermostat. DETAILED DESCRIPTION
[0022] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not intended to limit the embodiment of the present invention.
[0023] The terms "system" and "network" in the embodiments of the present invention can be used interchangeably. "Multiple" refers to two or more. In view of this, "multiple" can also be understood as "at least two" in the embodiments of the present invention. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the previous and next associated objects are in an "or" relationship. In addition, it should be understood that in the description of the embodiments of the present invention, words such as "first" and "second" are only used to distinguish the purpose of description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.
[0024] Due to the frequent entry and exit of people in the plateau greenhouse during the day, the temperature at the entrance and exit fluctuates violently. However, the temperature monitoring points of traditional greenhouses are scattered and the control equipment is evenly arranged, which cannot compensate for the temperature changes at the entrance and exit in a targeted manner. As a result, the growth of meadows in this area is restricted due to environmental instability.
[0025] See Figure 1-2The embodiment of the utility model provides an intelligent greenhouse system for maintaining plateau meadows, including a greenhouse body 1 and a temperature control device, wherein the temperature control device includes: a plurality of temperature sensors 2, which are distributed in a grid pattern inside the greenhouse body 1; an edge computing gateway connected to all the temperature sensors 2, and the edge computing gateway includes an STM32-based processor, which is connected to a cloud server / host computer via 4G / Beidou dual-mode communication; a stacking rack 3 for placing turf is provided inside the greenhouse body 1, and a heating pipe 4 is provided at the bottom of the stacking rack 3, and the arrangement density of the heating pipes 4 near the entrance and exit 5 of the greenhouse body is greater than the arrangement density of the heating pipes 4 located in the middle of the greenhouse body 1.
[0026] In one possible embodiment, a greenhouse body 1 is provided with a grid-like distribution of temperature sensors 2. An edge computing gateway is connected to all temperature sensors 2 and to a cloud server / host computer via 4G / Beidou dual-mode communication. The edge computing gateway utilizes an STM32-based processor with a built-in temperature control module. This module pre-stores a temperature control algorithm. This temperature control algorithm is conventional technology, comparing data obtained by temperature sensor 2 with a preset temperature threshold and performing corresponding operations (e.g., turning heating pipes 4 on or off) based on the comparison result. In this embodiment, the operations performed by the processor described below are all conventional technology. In this embodiment, no improvements have been made to the modules or pre-stored algorithms within the processor; instead, a common commercially available processor is used. Therefore, no further details are provided here. Heating pipes 4 are laid at the bottom of the turf rack 3 within the greenhouse, with a higher density of heating pipes 4 near the entrance 5 than in the middle of the greenhouse. When the temperature sensor 2 detects that the temperature at the entrance 5 is below the set value, the processor activates the heating pipes 4. The high density of heating pipes 4 can quickly raise the temperature in that area, mitigating temperature fluctuations.
[0027] The temperature sensor 2 collects the temperature data inside the greenhouse body 1 in real time, and uploads it to the cloud server connection / host computer after processing through the edge computing gateway. When the temperature is lower than the threshold, the STM332 processor starts the heating pipe 4 to heat the inside of the greenhouse body 1 according to the pre-stored temperature control algorithm. And because the heating pipes 4 at the entrance and exit 5 of the greenhouse body 1 are arranged at a higher density, temperature fluctuations can be quickly compensated, thereby maintaining regional temperature stability.
[0028] The grid-distributed temperature sensors 2 enable comprehensive temperature monitoring inside the greenhouse body 1, making data collection more comprehensive. The edge computing gateway processes data locally, enabling faster responses. Combined with 4G / Beidou dual-mode communication and cloud server / host computer connections, this ensures stable data transmission in the complex plateau environment. Finally, through the differentiated arrangement of the heating tubes 4, the temperature fluctuation problem at the entrances and exits 5 is addressed, improving temperature control accuracy.
[0029] The edge computing gateway and cloud server connection / host computer mentioned in this embodiment are all existing technologies, and this embodiment only uses the equipment without improving the equipment structure. Therefore, in this embodiment, no excessive description or drawings are given.
[0030] There is no clear standard for the arrangement of temperature sensors 2 in traditional greenhouses. However, if the density of the temperature sensors 2 is too high, the cost will increase, while if the density is too low, the local temperature cannot be accurately reflected, resulting in distortion of the monitoring data and affecting the control effect.
[0031] In a possible embodiment, inside the greenhouse body 1 , the temperature sensors 2 are installed in a grid pattern according to a standard of arranging one temperature sensor 2 every 50 m2.
[0032] Through clear layout density standards, monitoring accuracy and cost are balanced to avoid waste of resources. The density of 50㎡ per interval can accurately cover all areas in the greenhouse, providing reliable data support for temperature control.
[0033] The power transmission infrastructure in the plateau area is weak, and the heating system of traditional greenhouses relies on external power grids. It cannot operate normally when there is a power outage or unstable power supply, which puts the meadows at risk of low temperature frost damage.
[0034] In an embodiment of the present utility model, the plateau meadow maintenance intelligent greenhouse system also includes: a solar collector 6 arranged on the top of the greenhouse body 1, the solar collector 6 is connected to the heating pipe 4 through a pipeline 8, circulating water is provided in the pipeline 8, and the solar collector 6 is electrically connected to the processor.
[0035] In a possible embodiment, a solar thermal collector 6 is installed on the top of the greenhouse body 1 and is connected to the heating pipe 4 at the bottom of the stacking rack 3 through a pipe 8, and circulating water is injected into the pipe 8.
[0036] The solar collector 6 absorbs heat energy. When the STM332 processor detects that the temperature inside the greenhouse body 1 is too low, it controls the solar collector 6 to heat the circulating water. The heated circulating water circulates in the heating pipe 4 through the pipeline 8, thereby providing heat for the greenhouse.
[0037] By utilizing solar thermal collectors 6 for heating, the dependence on the external power grid is reduced, adapting to the environment of insufficient infrastructure on the plateau, and adopting circulating water heating to evenly transfer heat, thus avoiding damage to the meadow caused by local high temperature.
[0038] It is difficult to meet all the energy needs of the greenhouse system by relying solely on the solar collector 6. Especially on cloudy days or at night, insufficient energy supply from the solar collector 6 will cause the control equipment to stop operating, affecting the stability of the meadow growth environment.
[0039] In an embodiment of the present utility model, the plateau meadow maintenance intelligent greenhouse system also includes: a solar photovoltaic panel 7, which is laid on the top of the greenhouse body 1, and the solar photovoltaic panel 7 is connected to the solar collector 6 and the edge computing gateway to provide energy.
[0040] In one possible embodiment, a solar photovoltaic panel 7 is installed on top of the greenhouse body 1 and electrically connected to a solar thermal collector 6, an edge computing gateway, and other equipment. During the day, the solar photovoltaic panel 7 absorbs sunlight and converts it into electricity. A portion of this energy is directly used to power the solar thermal collector 6 and the gateway, while the excess energy is stored for backup. On cloudy days or at night, this stored energy ensures basic equipment operation.
[0041] By forming a complementary energy system with solar photovoltaic panels 7 and solar thermal collectors 6, the stability of energy supply is improved, and the dependence on the external power grid is further reduced through the autonomous energy supply mode, adapting to the current situation of energy shortage in the plateau. In addition, the use of clean energy is more environmentally friendly and in line with the concept of ecological conservation.
[0042] The traditional solar thermal collector 6 is heavy and has weak wind resistance, which makes it unsuitable for the windy and strong ultraviolet environment of the plateau. In addition, the thermal efficiency is low and cannot meet the heating needs of the greenhouse.
[0043] In the embodiment of the present invention, the solar thermal collector 6 is a lightweight vacuum tube collector, and the model of the lightweight vacuum tube collector is Sunsrain HRC-58.
[0044] In one possible embodiment, a lightweight Sunsrain HRC-58 vacuum tube collector is installed on the roof of the greenhouse. This solar collector 6 utilizes modular installation, and each unit can bear a load of 50 kg or more. It is adaptable to high-altitude environments and can operate efficiently at temperatures as low as -30°C. Its light weight and strong wind resistance make it suitable for greenhouse structures with weaker load-bearing structures.
[0045] The lightweight design adapts to the windy environment of the plateau and reduces the load-bearing pressure of the greenhouse; the specific model of collector has high thermal efficiency and can make full use of the strong sunlight resources of the plateau to improve the heating effect; the vacuum tube structure is resistant to UV aging and extends the service life of the equipment.
[0046] The temperature difference between day and night in the plateau area is extremely large. Low temperatures at night can easily cause frost damage to the meadow, while the interior of the greenhouse body 1 may heat up too quickly due to strong radiation during the day. Traditional greenhouses lack the ability to regulate high and low temperatures at the same time, and the meadow is easily killed by sudden temperature changes.
[0047] In an embodiment of the present utility model, the plateau meadow maintenance intelligent greenhouse system further includes: a refrigeration device 9 and a cold air outlet 10 connected to the refrigeration device 9, and the refrigeration device 9 is electrically connected to the solar photovoltaic panel 7 and the processor respectively.
[0048] In a possible embodiment, a refrigeration device 9 and a cold air outlet 10 connected thereto are further provided, wherein the refrigeration device 9 is electrically connected to the solar photovoltaic panel 7 (power supply) and the STM32 processor (control) respectively.
[0049] During the day, when the temperature sensor 2 detects that the temperature inside the greenhouse body 1 is too high, the STM32 processor starts the refrigeration device 9 according to the temperature control algorithm to control the temperature inside the greenhouse body 1; secondly, the solar photovoltaic panel 7 provides power to the refrigeration device 9, and the cold air generated by the refrigeration device 9 is sent into the greenhouse through the cold air outlet 10 to lower the ambient temperature.
[0050] By supplementing the deficiencies of the heating system, "two-way regulation" of the internal temperature of the greenhouse body 1 is achieved, thereby coping with the problem of large temperature differences between day and night in the plateau environment; secondly, the refrigeration equipment 9 is powered by solar photovoltaic panels 7, which is energy-saving and environmentally friendly and can adapt to plateau energy conditions; finally, by connecting with the processor, automatic cooling is achieved under high temperature conditions, avoiding meadow damage caused by manual operation delays.
[0051] In the middle of the greenhouse body 1, due to poor air mobility, a temperature enrichment zone (high or low temperature concentration) is easily formed, resulting in uneven growth of the meadow, that is, the survival rate of the meadow in the central area is lower than that in the edge area.
[0052] In the embodiment of the present invention, the arrangement density of the cold air outlets 10 in the middle of the greenhouse body 1 is higher than the arrangement density of the cold air outlets 10 at the entrance and exit 5 of the greenhouse body 1 .
[0053] In a possible embodiment, the cold air vents 10 are centrally arranged in the middle of the greenhouse, and the arrangement density of the cold air vents 10 in the middle of the greenhouse body 1 is higher than the arrangement density at the entrance and exit 5 of the greenhouse body 1 .
[0054] When the refrigeration equipment 9 is started, the cold air is mainly sent into the greenhouse body 1 through the central cold air outlet 10, enhancing the air flow in the middle of the greenhouse body 1. Secondly, the high-density cold air outlet 10 can accelerate the cold air circulation in the middle of the greenhouse body 1, breaking the temperature enrichment state and making the temperature distribution in the greenhouse body 1 more uniform.
[0055] In the embodiment of the present utility model, the refrigeration equipment 9 includes but is not limited to an intelligent air conditioner, a fan, etc., and since the refrigeration equipment 9 is a common device on the market, and in this embodiment, only the refrigeration equipment 9 is used without any internal improvement, it will not be described in detail in this embodiment.
[0056] By specifically solving the problem of poor air flow in the middle, the temperature enrichment area is eliminated; secondly, through the differentiated arrangement of the cold air outlets 10, the cooling efficiency is improved, energy waste is reduced, and by ensuring that the meadows in each area of the greenhouse body 1 are in a uniform temperature environment, the overall survival rate is improved.
[0057] The greenhouse entrance and exit 5 is frequently opened and closed, and the temperature changes rapidly. The traditional temperature sensor 2 has a response delay, resulting in a control lag, which can easily cause the meadow in the entrance and exit 5 area to be affected by sudden temperature changes.
[0058] In an embodiment of the present invention, the plateau meadow maintenance intelligent greenhouse system further includes: a thermostat 11 arranged at the entrance and exit 5 of the greenhouse body 1, and the thermostat 11 is filled with phase change material.
[0059] In one possible embodiment, a thermostat 11 is installed at the entrance 5 of the greenhouse body 1. The thermostat 11 is filled with a phase-change material. When the temperature at the entrance 5 rises rapidly, the phase-change material absorbs heat; when the temperature drops rapidly, the phase-change material releases heat, buffering temperature fluctuations through changes in its physical state.
[0060] By utilizing the characteristic of phase change materials that can quickly respond to temperature changes, the lag of sensor control can be compensated to achieve "instantaneous buffering". In addition, phase change materials do not require additional energy to drive, and rely on the material's own physical properties to adjust the temperature, which is energy-saving and environmentally friendly. It can specifically protect the meadows in the five entrance and exit areas and reduce the impact of temperature fluctuations caused by people entering and exiting.
[0061] The phase change point of traditional phase change materials does not match the suitable growth temperature of plateau meadows (about 10°C), resulting in poor temperature regulation effect and inability to effectively buffer the temperature fluctuations at the entrance and exit 5.
[0062] In an embodiment of the present invention, the phase change material is a paraffin wax / expanded graphite composite material, and the phase change point of the paraffin wax / expanded graphite composite material is 10°C.
[0063] In one possible embodiment, thermostat 11 is filled with a paraffin wax / expanded graphite composite material with a phase transition point of 10°C. When the temperature at inlet / outlet 5 is above 10°C, the material absorbs heat and transforms from solid to liquid. When the temperature is below 10°C, the material releases heat and transforms from liquid to solid, maintaining a stable temperature within the range suitable for meadow growth.
[0064] The paraffin wax / expanded graphite composite material has high phase change latent heat and good stability, and can be used repeatedly for a long time, thereby extending the life of the thermostat 11. In addition, its phase change point of 10°C accurately matches the growth requirements of the plateau meadow, and the temperature regulation is more targeted.
[0065] The overall benefits of this new system include: through targeted temperature monitoring, energy supply, two-way temperature control, airflow optimization, and a transient buffer structure, it comprehensively addresses the environmental challenges associated with highland meadow maintenance. These technical solutions work synergistically to achieve precise, stable, and efficient greenhouse temperature control, significantly improving meadow plant survival rates. Furthermore, the system is adaptable to the unique plateau environment of weak infrastructure and limited energy resources, demonstrating its high practicality and potential for widespread adoption.
[0066] The above describes in detail the optional implementation methods of the embodiment of the present invention in conjunction with the accompanying drawings. However, the embodiment of the present invention is not limited to the specific details in the above implementation methods. Within the technical concept of the embodiment of the present invention, the technical solution of the embodiment of the present invention can be subjected to various simple modifications, and these simple modifications all fall within the protection scope of the embodiment of the present invention.
[0067] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the embodiments of the present utility model will not further describe various possible combinations.
[0068] In addition, the various implementations of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.
Claims
1. An intelligent greenhouse system for maintaining plateau meadows, characterized in that: It includes a greenhouse body and a temperature control device, and the temperature control device includes: A plurality of temperature sensors are distributed in a grid pattern inside the greenhouse body; An edge computing gateway connected to all the temperature sensors, the edge computing gateway including an STM32-based processor connected to a cloud server / host computer via 4G / Beidou dual-mode communication; A stacking rack for placing turf is provided inside the greenhouse body, and heating pipes are provided at the bottom of the stacking rack. The arrangement density of the heating pipes near the entrance and exit of the greenhouse body is greater than the arrangement density of the heating pipes located in the middle of the greenhouse body.
2. The plateau meadow maintenance intelligent greenhouse system according to claim 1 is characterized in that: The arrangement density of the temperature sensors is one per 50 m2 in the greenhouse body.
3. The intelligent greenhouse system for maintaining plateau meadows according to claim 1 is characterized in that: The plateau meadow maintenance intelligent greenhouse system also includes: A solar thermal collector is arranged on the top of the greenhouse body, the solar thermal collector is connected to the heating pipe through a pipeline, circulating water is provided in the pipeline, and the solar thermal collector is electrically connected to the processor.
4. The intelligent greenhouse system for maintaining plateau meadows according to claim 3 is characterized in that: The plateau meadow maintenance intelligent greenhouse system also includes: A solar photovoltaic panel is laid on the top of the greenhouse body. The solar photovoltaic panel is connected to the solar collector and the edge computing gateway to provide energy.
5. The intelligent greenhouse system for maintaining plateau meadows according to claim 3 is characterized in that: The solar thermal collector is a lightweight vacuum tube collector, and the model of the lightweight vacuum tube collector is Sunsrain HRC-58.
6. The intelligent greenhouse system for maintaining plateau meadows according to claim 4 is characterized in that: The plateau meadow maintenance intelligent greenhouse system also includes: A refrigeration device and a cold air outlet communicated with the refrigeration device, wherein the refrigeration device is electrically connected to the solar photovoltaic panel and the processor respectively.
7. The intelligent greenhouse system for maintaining plateau meadows according to claim 6 is characterized in that: The arrangement density of the cold air outlets in the middle of the greenhouse body is higher than the arrangement density of the cold air outlets at the entrance and exit of the greenhouse body.
8. The intelligent greenhouse system for maintaining plateau meadows according to claim 1 is characterized in that: The plateau meadow maintenance intelligent greenhouse system also includes: A thermostat is arranged at the entrance and exit of the greenhouse body, and the thermostat is filled with phase change material.
9. The intelligent greenhouse system for maintaining plateau meadows according to claim 8, characterized in that: The phase change material is a paraffin wax / expanded graphite composite material, and the phase change point of the paraffin wax / expanded graphite composite material is 10°C.