Greenhouse temperature control device and control method thereof

Abstract

The present invention relates to the field of greenhouse temperature control technology, and in particular to a greenhouse temperature control device and a control method thereof, comprising a greenhouse frame, wherein the greenhouse frame comprises an arc-shaped skeleton, and further comprises: a plurality of fixed skeletons, which are fixed on the side walls of the arc-shaped skeleton in an array along the trajectory of the arc-shaped skeleton, and a first opening is provided on both sides of the fixed skeleton; a plurality of movable skeletons, which are slidably installed on the side walls of the arc-shaped skeleton in an array along the trajectory of the arc-shaped skeleton, and the movable skeleton is driven by a movable driving component; a plurality of sunshade adjustment components, which can switch between a sealed sunshade and a ventilated sunshade state, a sealed light-transmitting state, and a ventilated light-transmitting state through the movement and adjustment of the movable skeleton; this device is conducive to utilizing the natural environment to adjust the temperature of the greenhouse frame through the arrangement of the sunshade adjustment component, and there is no need to actively regulate the temperature of the greenhouse frame through electric energy, thereby helping to save energy for controlling the temperature of the greenhouse frame.

Description

Technical Field

[0001] The present invention relates to the field of greenhouse temperature control, and in particular to a greenhouse temperature control device and a control method thereof. Background Art

[0002] A greenhouse is a building structure used to control the environment in which plants grow, usually covered by a transparent material (such as glass or plastic film) to allow sunlight to pass through and keep the warmth inside. A greenhouse can provide a controlled environment, protect crops from extreme weather conditions, extend the growing season, and even grow tropical crops in cold climates. Factors such as light, temperature, humidity, and ventilation can be adjusted in a greenhouse to optimize plant growth conditions.

[0003] When the greenhouse is controlling the temperature, it is necessary to adjust and control the greenhouse accordingly according to the external environment to achieve the best temperature control effect. Therefore, when the temperature of the greenhouse needs to be controlled, if the greenhouse is only opened or closed, the temperature change will be too large or the adjustment will be out of control, thus affecting the temperature control effect of the greenhouse. If the greenhouse temperature is completely controlled by electric temperature control, the greenhouse temperature control process will rely entirely on electricity, resulting in a waste of resources. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a greenhouse temperature control device and a control method thereof.

[0005] In a first aspect, the present invention provides a greenhouse temperature control device, comprising a greenhouse frame, wherein the greenhouse frame comprises an arc-shaped frame, and further comprises:

[0006] A plurality of fixed frames are fixed on the side wall of the arc-shaped frame in an array along the trajectory of the arc-shaped frame, and first openings are provided on both sides of the fixed frames;

[0007] A plurality of movable frames are slidably installed on the side wall of the arc-shaped frame in an array along the trajectory of the arc-shaped frame, the movable frames are driven by a movable driving assembly, the fixed frames and the movable frames are arranged in sequence and spaced apart, and a second opening is opened on both sides of the movable frames;

[0008] A plurality of sunshade adjustment components are respectively installed on both sides of the fixed frame and between the adjacent movable frames, so as to switch between the sealed sunshade and ventilated sunshade states, the sealed light-transmitting state, and the ventilated light-transmitting state through the movement and adjustment of the movable frames;

[0009] Air induction components are installed at both ends of the greenhouse frame and are used to detect wind direction and wind force, so as to actively drive airflow to flow through the greenhouse frame when the wind force is insufficient;

[0010] The greenhouse frame is the main structure of the greenhouse, and the interior of the greenhouse frame is the internal space of the greenhouse. The staff works in the internal space of the greenhouse frame. The fixed frame and the movable frame cooperate with each other to drive the shading adjustment component for adjustment. When the internal temperature of the greenhouse frame is high and needs to be cooled, if the external wind speed is sufficient and the external light intensity will not cause the internal temperature of the greenhouse frame to rise, the staff controls the shading adjustment component to switch to the ventilation and light-transmitting state, so that the interior of the greenhouse frame is cooled down under the action of the external airflow, and at this time, since the external light intensity will not cause the internal temperature of the greenhouse frame to rise, the greenhouse frame will not be shaded. When the outside wind speed is sufficient and the outside light intensity will cause the internal temperature of the greenhouse frame to rise, the staff controls the shading adjustment component to switch to the ventilation and shading state, so that the greenhouse frame is ventilated and cooled under the shading condition, thereby using natural airflow to cool the greenhouse frame, and shading the greenhouse frame to avoid light causing the internal temperature of the greenhouse frame to rise. Similarly, by switching the greenhouse frame between the sealed shading and sealed light-transmitting states, the internal temperature of the greenhouse frame is adjusted and controlled, which is conducive to using the natural environment to adjust the temperature of the greenhouse frame, and there is no need to actively regulate the temperature of the greenhouse frame through electric energy, which is conducive to saving energy for controlling the temperature of the greenhouse frame.

[0011] When the outside wind speed is insufficient and the greenhouse frame is open, there is no airflow outside, making it difficult to drive the airflow inside the greenhouse frame for temperature control. At this time, the induced draft component is started, and the induced draft component can actively drive the flow of air, which is beneficial to actively cool down the interior of the greenhouse frame, thereby facilitating the control of the temperature inside the greenhouse frame.

[0012] Preferably, the air induction assembly comprises:

[0013] A plurality of boxes are divided into two groups and are fixed in an array at both ends of the greenhouse frame. An air inlet is provided on the top of the box, and an air outlet is provided at one end of the box facing the inside of the greenhouse frame.

[0014] A plurality of lifting platforms are correspondingly inserted into the inside of the air inlet, a canvas is fixed to the bottom of the lifting platform, a support frame is fixed to the bottom of the canvas, and the support frame is fixed to the inside of the box body;

[0015] A plurality of straight rods are correspondingly slidably inserted into the interior of the box body, and one end of the straight rods is fixedly connected to the lifting platform;

[0016] A plurality of lifting drive components are correspondingly installed on the sides of the box body and are used to drive the straight rod to move;

[0017] A wind force and direction detector, fixed on the outer wall of one of the lifting platforms;

[0018] A plurality of ventilation fans are divided into two groups and are respectively fixedly embedded at two ends of the greenhouse frame;

[0019] After the lifting drive assembly is started, it drives the straight rod to move upward, and after the straight rod moves upward, it pushes the lifting platform to move upward, and after the lifting platform moves upward, it pulls the canvas to unfold, and the support frame can fix and support the bottom of the canvas, and the wind force and direction detector can detect the wind force and wind direction. When insufficient wind force is detected, the canvas is unfolded, and after the canvas is unfolded, the canvas blocks the airflow. The canvas is tilted so that after blocking the airflow, the airflow flows downward along the tilted trajectory of the canvas, which is conducive to promoting the airflow to flow along the canvas to the air inlet, and then enters the box along the air inlet and is discharged to the inside of the greenhouse frame along the exhaust port, thereby driving the air The airflow flows toward the inside of the greenhouse frame. After the ventilation fan is started, it can actively drive the airflow inside the greenhouse frame to flow to the outside of the greenhouse frame, so that the airflow forms a flow trajectory from the exhaust port to the ventilation fan inside the greenhouse frame, thereby actively driving the airflow to dissipate heat inside the greenhouse frame to achieve temperature control inside the greenhouse frame. This is beneficial when the wind speed is sufficient, using the natural environment to control the temperature inside the greenhouse frame. When the wind speed is insufficient, the ventilation fan actively drives the airflow to control the temperature inside the greenhouse frame, which is beneficial to avoid waste of resources while controlling the temperature of the greenhouse frame.

[0020] Preferably, the sunshade adjustment assembly comprises:

[0021] Four winding rollers, two of which are rotatably mounted inside the fixed frame, and the other two are rotatably mounted inside the movable frame;

[0022] The transparent film, both ends of which pass through the first opening and the second opening respectively and are rolled up on the outside of the winding roller between one side of the fixed frame and the adjacent movable frame;

[0023] The sunshade film cloth has two ends which pass through the first opening and the second opening respectively and are rolled up outside the winding roller between the other side of the fixed frame and the adjacent movable frame;

[0024] A plurality of magnetic limit assemblies, installed between the winding roller and the corresponding fixed frame or the movable frame, to limit the rotation of the winding roller;

[0025] Both ends of the sunshade film cloth and the transparent film are rolled up outside the winding roller. The magnetic limit assembly can limit the winding roller and restrict the rotation of the winding roller. When controlling the movement of the movable frame, when the movable frame moves in the direction of the sunshade film cloth, the movable frame pulls the transparent film to unfold. At this time, the winding roller at one end of the transparent film is limited by the magnetic limit assembly, so that when the moving skeleton pulls the transparent film to unfold, the winding roller that is not limited can rotate. After the winding roller rotates, the transparent film rolled up on the outside is unwound, thereby controlling the unwinding position of the transparent film, which is beneficial to the control of the ventilation volume of the transparent film. Similarly, when the moving skeleton moves in the direction of the transparent film, the ventilation volume of the sunshade film cloth can be controlled, which is beneficial to the control of the ventilation volume and ventilation state of the greenhouse frame.

[0026] Preferably, the sunshade adjustment assembly further includes:

[0027] A membrane cloth vent is provided at one end of the transparent membrane;

[0028] A ventilation end is arranged at one end of the sunshade film, and a plurality of linear openings are formed in a linear array on the side of the ventilation end;

[0029] One end of the transparent film is a membrane cloth vent, so that when the transparent film is unrolled to the membrane cloth vent position, the transparent film can be ventilated, and when the transparent film is unrolled to the other end, the transparent film can maintain a state where light passes through but air does not flow. One end of the sunshade membrane cloth is a ventilation end, so that when the sunshade membrane cloth is unrolled to the ventilation end position, the sunshade membrane cloth can be ventilated through the linear opening, and when the sunshade membrane cloth is unrolled to the other end, the sunshade membrane cloth can maintain a state where sunshade but air does not flow, which is beneficial to switching the ventilation and shading states of the greenhouse frame.

[0030] Preferably, the magnetic limit assembly comprises:

[0031] A magnet limit block is slidably inserted at the end of the winding roller;

[0032] An electromagnet is fixed inside the winding roller;

[0033] A limiting opening is provided on a side wall of the corresponding fixed frame or the movable frame;

[0034] A torsion spring is sleeved on the outside of the winding roller, and two ends of the torsion spring are respectively clamped between the fixed frame and the winding roller or between the movable frame and the winding roller;

[0035] After the electromagnet is energized and started, it has electromagnetic properties. The same poles of the electromagnet and the magnet limit block are opposite, so that the electromagnet pushes the magnet limit block to move in the direction of the limit opening through magnetic force, so that the magnet limit block is inserted into the inside of the limit opening, thereby limiting the winding roller and making it unable to rotate. When the electromagnet is energized in the reverse direction, the opposite poles of the electromagnet and the magnet limit block are opposite, so that the electromagnet pulls the magnet limit block to move in the direction of leaving the limit opening through magnetic force, thereby releasing the limit on the winding roller and allowing the winding roller to reset under the torsional force of the torsion spring, which is conducive to driving the winding roller to rotate, reset and resume winding, thereby realizing the limit and reset control of the winding roller, which is conducive to adjusting the unfolding position of the transparent film and sunshade film cloth.

[0036] Preferably, the air induction component further includes:

[0037] A movable box is arranged one by one corresponding to the straight rods and is slidably mounted on the bracket of the greenhouse frame, and the movable box is rotatably connected to the corresponding straight rods;

[0038] A third motor is fixed inside the moving box, and an output shaft of the third motor penetrates through the moving box and drives the straight rod to rotate;

[0039] The mobile box can install the third motor. After the third motor is started, it drives the straight rod to rotate through the output shaft. After the straight rod rotates, it can drive the canvas to adjust the angle, so as to achieve airflow diversion in different directions by adjusting the angle of the canvas. When the wind force and direction detector detects the wind direction, the canvas is controlled to rotate in the direction of the wind direction, which is beneficial to improve the airflow diversion effect.

[0040] Preferably, the sunshade adjustment assembly further includes:

[0041] A plurality of magnetic metal sheets are respectively fixed to the edges of the transparent film and the sunshade film cloth;

[0042] Magnets are respectively fixed to two ends of the greenhouse frame;

[0043] The magnetic metal sheet is fixed to the edge of the transparent film and the sunshade film cloth. After unfolding, the magnetic metal sheet is adsorbed on the left and right sides of the magnet. The outside of the magnetic metal sheet is wrapped with a rubber layer, so that under the adsorption action of the magnet, the edges of the transparent film and the sunshade film cloth are sealed by magnetic attraction, which is beneficial to improve the sealing effect when the greenhouse frame is sealed and shielded by the transparent film and the sunshade film cloth.

[0044] In a second aspect, a control method for a greenhouse temperature control device is provided, wherein a controller is fixed on a side wall of the greenhouse frame, and the control method comprises the following steps:

[0045] The controller receives wind direction information detected by the wind force and direction detector;

[0046] The controller generates drive control information according to the wind direction information, and the drive control information is used to control the start-up of the third motor;

[0047] The controller sends the driving control information to the third motor to control the third motor to start and drive the straight rod to rotate in the direction of the wind direction information;

[0048] The wind force and direction detector detects the wind direction, detects the wind direction information, and sends the wind direction information to the controller. After receiving the wind direction information, the controller generates drive control information according to the wind direction information. Then the controller sends the drive control information to the third motor to control the third motor to start and drive the straight rod to rotate in the direction of the wind direction information.

[0049] Preferably, it also includes:

[0050] The controller receives wind information detected by the wind force and direction detector;

[0051] The controller compares the wind force information with the judged wind force manually input by the controller, and when the wind force information is greater than or equal to the judged wind force, the controller generates automatic ventilation control information, and when the wind force information is less than the judged wind force, the controller generates active ventilation control information, the automatic ventilation control information is used to control the sunshade adjustment component to start automatic ventilation, and the active ventilation control information is used to control the air induction component to start active ventilation;

[0052] The controller sends the automatic ventilation control information to the sunshade adjustment component to control the sunshade adjustment component to start automatic ventilation;

[0053] The controller sends the active ventilation control information to the air induction component to control the air induction component to start active ventilation;

[0054] The wind force and direction detector detects the wind force information and sends the wind force information to the controller, which compares the wind force information with the judged wind force manually input by the controller. When the wind force information is greater than or equal to the judged wind force, the controller generates automatic ventilation control information, which the controller sends to the sunshade adjustment component to control the sunshade adjustment component to start automatic ventilation. When the wind force information is less than the judged wind force, the controller generates active ventilation control information, which the controller sends to the induced draft component to control the induced draft component to start active ventilation.

[0055] Preferably, a temperature sensor is installed inside the greenhouse frame, and a light detector is installed outside the greenhouse frame, and further comprises:

[0056] The controller receives temperature information F detected by the temperature sensor;

[0057] The controller receives light intensity information CD detected by the light detector;

[0058] The controller brings the temperature information F and the standard temperature information F0 manually input by the controller into the judgment formula F>F0, brings the light intensity information CD and the standard light intensity CD0 manually input by the controller into CD>CD0, and when both are met, the controller generates sunshade and cooling control information, and the cooling control information is used to control the sunshade adjustment component to switch to the ventilation and sunshade state, and when only F>F0 is met, the controller generates light transmission and cooling control information, and the light transmission and cooling control information is used to control the sunshade adjustment component to switch to the ventilation and light transmission state;

[0059] The controller sends the sunshade and cooling control information to the sunshade adjustment component to control the sunshade adjustment component to switch to the ventilation and sunshade state;

[0060] The controller sends the light transmission and temperature reduction control information to the sunshade adjustment component to control the sunshade adjustment component to switch to a ventilation and light transmission state;

[0061] The temperature sensor detects the temperature of the greenhouse frame to obtain temperature information F. The light detector detects the external light intensity to obtain light intensity information CD. The staff manually inputs standard temperature information F0 and standard light intensity CD0 through the controller. The controller substitutes the temperature information F and the standard temperature information F0 into the judgment formula F>F0, and substitutes the light intensity information CD and the standard light intensity CD0 into CD>CD0. When both judgment formulas meet the requirements, that is, the temperature of the greenhouse frame is greater than the standard temperature information F0, and the external light intensity is greater than the standard light intensity CD0, the controller generates shading and cooling control information at this time, and then the controller sends the shading and cooling control information to the shading adjustment component to control the shading adjustment component to switch to the ventilation and shading state. When only F>F0 is met, that is, the temperature of the greenhouse frame is greater than the standard temperature information F0, and the external light intensity is less than the standard light intensity CD0, the controller generates light transmission and cooling control information at this time, and then the controller sends the light transmission and cooling control information to the shading adjustment component to control the shading adjustment component to switch to the ventilation and light transmission state. In other cases, the controller does not respond.

[0062] Compared with the prior art, the present invention has the following beneficial effects:

[0063] 1. The present invention is conducive to utilizing the natural environment to adjust the temperature of the greenhouse frame through the provision of the sunshade adjustment component, and there is no need to actively control the temperature of the greenhouse frame through electric energy, thereby helping to save energy for controlling the temperature of the greenhouse frame.

[0064] 2. The present invention, through the setting of the induced draft component, makes use of the natural environment to control the temperature inside the greenhouse frame when the wind speed is sufficient. When the wind speed is insufficient, the ventilation fan actively drives the airflow to control the temperature inside the greenhouse frame, thereby helping to avoid waste of resources while controlling the temperature of the greenhouse frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a schematic diagram of the method flow of the present invention.

[0066] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0067] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0068] Figure 4 The structure of the present invention after the overall section is schematically shown. Figure 1 .

[0069] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0070] Figure 6 The structure of the present invention after the overall section is schematically shown. Figure 2 .

[0071] Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0072] Figure 8 It is a schematic diagram of the transparent film structure of the present invention.

[0073] Fig. 9 It is a schematic diagram of the sunshade film cloth structure of the present invention.

[0074] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at D in the middle.

[0075] In the figure: 1. greenhouse frame; 2. fixed frame; 201. first opening; 3. movable frame; 301. second opening; 4. winding roller; 5. transparent film; 501. film cloth vent; 6. sunshade film cloth; 601. ventilation end; 602. linear opening; 7. first motor; 701. first gear; 702. second gear; 703. rack; 8. box body; 801. support frame; 802. air inlet; 803. exhaust outlet; 9. lifting platform; 901. canvas; 10. straight rod; 11. worm; 12. second motor; 13. turbine; 14. moving box; 15. third motor; 16. wind force and direction detector; 17. ventilation fan; 18. magnetic metal sheet; 19. magnet. DETAILED DESCRIPTION

[0076] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0077] like Figures 2 to 10 A greenhouse temperature control device shown includes a greenhouse frame 1, the greenhouse frame 1 includes an arc-shaped frame, and also includes:

[0078] A plurality of fixed frames 2 are fixed on the side wall of the arc-shaped frame in an array along the trajectory of the arc-shaped frame, and first openings 201 are provided on both sides of the fixed frames 2;

[0079] A plurality of movable skeletons 3 are slidably mounted on the side wall of the arc-shaped skeleton in an array along the trajectory of the arc-shaped skeleton. The movable skeleton 3 is driven by a movable driving assembly. The fixed skeleton 2 and the movable skeleton 3 are arranged in sequence and spaced apart. Second openings 301 are provided on both sides of the movable skeleton 3.

[0080] A plurality of sunshade adjustment components are respectively installed on both sides of the fixed frame 2 and between the adjacent movable frame 3, so as to switch between the sealed sunshade and ventilated sunshade states, the sealed light-transmitting state, and the ventilated light-transmitting state through the movement and adjustment of the movable frame 3;

[0081] The wind induction components are installed at both ends of the greenhouse frame 1 and are used to detect the wind direction and wind force, so as to actively drive the air flow through the greenhouse frame 1 when the wind force is insufficient;

[0082] When the greenhouse is controlling the temperature, it is necessary to adjust and control the greenhouse accordingly according to the external environment to achieve the best temperature control effect. Therefore, when the temperature of the greenhouse needs to be controlled, if the greenhouse is only opened or closed, the temperature change will be too large or the adjustment will be out of control, thus affecting the temperature control effect of the greenhouse. If the greenhouse temperature is completely controlled by electric temperature control, the greenhouse temperature control process will rely entirely on electricity, resulting in a waste of resources;

[0083] This embodiment of the present invention is used to solve the above problems. The specific implementation method is as follows: the greenhouse frame 1 is the main structure of the greenhouse, and the interior of the greenhouse frame 1 is the internal space of the greenhouse. The staff works in the internal space of the greenhouse frame 1. The fixed frame 2 and the movable frame 3 cooperate with each other to drive the sunshade adjustment component for adjustment. When the internal temperature of the greenhouse frame 1 is high and needs to be cooled, if the external wind speed is sufficient and the external light intensity will not cause the internal temperature of the greenhouse frame 1 to rise, the staff controls the sunshade adjustment component to switch to the ventilation and light transmission state, so that the interior of the greenhouse frame 1 is cooled down under the action of the external airflow, and at this time, the external light intensity will not cause the internal temperature of the greenhouse frame 1 to rise. The greenhouse frame 1 is not shaded. When the external wind speed is sufficient and the external light intensity will cause the internal temperature of the greenhouse frame 1 to rise, the staff controls the sunshade adjustment component to switch to the ventilation and sunshade state, so that the greenhouse frame 1 is ventilated and cooled under the sunshade condition, thereby utilizing the natural airflow to cool the greenhouse frame 1, and shading the greenhouse frame 1 to avoid the temperature inside the greenhouse frame 1 from being raised by light. Similarly, by switching the greenhouse frame 1 between the sealed sunshade and sealed light-transmitting states, the internal temperature of the greenhouse frame 1 is adjusted and controlled, which is conducive to utilizing the natural environment to adjust the temperature of the greenhouse frame 1, and there is no need to actively regulate the temperature of the greenhouse frame 1 through electric energy, which is conducive to saving energy for controlling the temperature of the greenhouse frame 1.

[0084] When the outside wind speed is insufficient and the greenhouse frame 1 is opened, there is no airflow outside, making it difficult to drive the airflow inside the greenhouse frame 1 for temperature control. At this time, the induced draft component is started, and the induced draft component can actively drive the flow of air, which is beneficial to actively cool down the interior of the greenhouse frame 1, thereby facilitating the control of the internal temperature of the greenhouse frame 1.

[0085] As an optional embodiment, the mobile driving component includes:

[0086] A plurality of first motors 7, two first motors 7 corresponding to one mobile skeleton 3, the two first motors 7 are fixed to both ends of the mobile skeleton 3 through a mounting plate, and the output shafts of the first motors 7 are all fixed with first gears 701 after passing through the mounting plate;

[0087] A plurality of second gears 702, one second gear 702 corresponds to one first gear 701, the second gears 702 are rotatably mounted on the side wall of the mounting plate, and the first gear 701 is meshed with the corresponding second gear 702;

[0088] Two racks 703 are fixed to the two ends of the greenhouse frame 1 respectively, and the second gear 702 is meshed with the adjacent racks 703;

[0089] After the first motor 7 is started, it drives the first gear 701 to rotate through the output shaft. After the first gear 701 rotates, it drives the second gear 702 engaged with it to rotate. After the second gear 702 rotates, it rolls left and right through the engagement with the rack 703, thereby driving the movable frame 3 to move through the second gear 702. After the movable frame 3 moves, the sunshade adjustment component is switched, which is beneficial to control the temperature of the greenhouse frame 1 by switching different states and utilizing the natural environment.

[0090] As an optional embodiment, the air induction component includes:

[0091] A plurality of boxes 8 are divided into two groups and fixed in an array at both ends of the greenhouse frame 1. An air inlet 802 is provided at the top of the box 8, and an air outlet 803 is provided at one end of the box 8 facing the inside of the greenhouse frame 1.

[0092] A plurality of lifting platforms 9 are correspondingly inserted into the inside of the air inlet 802, a canvas 901 is fixed to the bottom of the lifting platform 9, a support frame 801 is fixed to the bottom of the canvas 901, and the support frame 801 is fixed to the inside of the box body 8;

[0093] A plurality of straight rods 10 are correspondingly slidably inserted into the box body 8, and one end of the straight rods 10 is fixedly connected to the lifting platform 9;

[0094] A plurality of lifting drive components are correspondingly installed on the side of the box body 8, and are used to drive the straight rod 10 to move;

[0095] A wind force and direction detector 16 is fixed on the outer wall of one of the lifting platforms 9;

[0096] A plurality of ventilation fans 17 are divided into two groups and are respectively fixedly embedded at two ends of the greenhouse frame 1;

[0097] After the lifting drive assembly is started, it drives the straight rod 10 to move upward. After the straight rod 10 moves upward, it pushes the lifting platform 9 to move upward. After the lifting platform 9 moves upward, it pulls the canvas 901 to unfold. The support frame 801 can fix and support the bottom of the canvas 901. The wind force and direction detector 16 can detect the wind force and wind direction. When insufficient wind force is detected, the canvas 901 is unfolded. After the canvas 901 is unfolded, the canvas 901 blocks the airflow. The canvas 901 is tilted so that after blocking the airflow, the airflow flows downward along the tilted trajectory of the canvas 901, which is conducive to promoting the airflow to flow along the canvas 901 to the air inlet 802, and then enters the box body 8 along the air inlet 802 and is discharged along the exhaust port 803 to The interior of the greenhouse frame 1, thereby driving the airflow to flow to the interior of the greenhouse frame 1. After the ventilation fan 17 is started, it can actively drive the airflow inside the greenhouse frame 1 to flow to the outside of the greenhouse frame 1, so that the airflow forms a flow trajectory from the exhaust port 803 to the ventilation fan 17 inside the greenhouse frame 1, thereby actively driving the airflow to dissipate heat to the interior of the greenhouse frame 1, so as to achieve temperature control inside the greenhouse frame 1, which is beneficial to use the natural environment to control the temperature of the interior of the greenhouse frame 1 when the wind speed is sufficient. When the wind speed is insufficient, the ventilation fan 17 actively drives the airflow to control the temperature of the interior of the greenhouse frame 1, which is beneficial to avoid waste of resources while controlling the temperature of the greenhouse frame 1.

[0098] As an optional embodiment, the lifting drive assembly includes:

[0099] A plurality of second motors 12, one second motor 12 corresponds to one box body 8, the second motor 12 is mounted on the side wall of the corresponding box body 8 through a mounting frame, and a turbine 13 is fixed to the end of the output shaft of the second motor 12;

[0100] A worm 11, one worm 11 corresponds to one straight rod 10, the worm 11 is fixedly sleeved outside the corresponding straight rod 10, and the worm 11 is meshed with an adjacent turbine 13;

[0101] After the second motor 12 is started, the output shaft drives the turbine 13 to rotate. After the turbine 13 rotates, it drives the worm 11 meshing with it to move, thereby driving the straight rod 10.

[0102] As an optional embodiment, the sunshade adjustment assembly includes:

[0103] Four winding rollers 4, two of which are rotatably mounted inside the fixed frame 2, and the other two are rotatably mounted inside the movable frame 3;

[0104] The two ends of the transparent film 5 pass through the first opening 201 and the second opening 301 respectively and are rolled up outside the winding roller 4 between one side of the fixed frame 2 and the adjacent movable frame 3;

[0105] The sunshade film cloth 6 has two ends that pass through the first opening 201 and the second opening 301 respectively and are rolled up outside the winding roller 4 between the other side of the fixed frame 2 and the adjacent movable frame 3;

[0106] A plurality of magnetic limiter components are installed between the winding roller 4 and the corresponding fixed frame 2 or movable frame 3 to limit the rotation of the winding roller 4;

[0107] Both ends of the sunshade film cloth 6 and the transparent film 5 are rolled up outside the winding roller 4. The magnetic limit assembly can limit the winding roller 4 and restrict the rotation of the winding roller 4. When controlling the movement of the movable skeleton 3, when the movable skeleton 3 moves in the direction of the sunshade film cloth 6, the movable skeleton 3 pulls the transparent film 5 to unfold. At this time, the winding roller 4 at one end of the transparent film 5 is limited by the magnetic limit assembly, so that when the movable skeleton 3 pulls the transparent film 5 to unfold, the winding roller 4 that is not limited can rotate. After the winding roller 4 rotates, the transparent film 5 rolled up on the outside is unwound, thereby controlling the unwinding position of the transparent film 5, which is beneficial to the control of the ventilation amount of the transparent film 5. Similarly, when the movable skeleton 3 moves in the direction of the transparent film 5, the ventilation amount of the sunshade film cloth 6 can be controlled, which is beneficial to the control of the ventilation amount and ventilation state of the greenhouse frame 1.

[0108] As an optional embodiment, the sunshade adjustment assembly further includes:

[0109] The membrane cloth vent 501 is opened at one end of the transparent membrane 5;

[0110] The ventilation end 601 is arranged at one end of the sunshade film 6, and a plurality of linear openings 602 are formed in a linear array on the side of the ventilation end 601;

[0111] One end of the transparent film 5 is a film cloth vent 501, so that when the transparent film 5 is unrolled to the film cloth vent 501 position, the transparent film 5 can be ventilated, and when the transparent film 5 is unrolled to the other end, the transparent film 5 can maintain a state where light passes through but air does not flow. One end of the sunshade film cloth 6 is a ventilation end 601, so that when the sunshade film cloth 6 is unrolled to the ventilation end 601 position, the sunshade film cloth 6 can be ventilated through the linear opening 602, and when the sunshade film cloth 6 is unrolled to the other end, the sunshade film cloth 6 can maintain a state where sunshade but air does not flow, which is beneficial to switching the ventilation and shading states of the greenhouse frame 1.

[0112] As an optional embodiment, the magnetic limit assembly includes:

[0113] A magnet limit block is slidably inserted at the end of the winding roller 4;

[0114] An electromagnet is fixed inside the winding roller 4;

[0115] The limiting opening is provided on the side wall of the corresponding fixed frame 2 or movable frame 3;

[0116] The torsion spring is sleeved on the outside of the winding roller 4, and the two ends of the torsion spring are respectively clamped between the fixed frame 2 and the winding roller 4 or between the movable frame 3 and the winding roller 4;

[0117] After the electromagnet is energized and started, it has electromagnetic properties. The same poles of the electromagnet and the magnet limit block are opposite to each other, so that the electromagnet pushes the magnet limit block to move in the direction of the limit opening through magnetic force, so that the magnet limit block is inserted into the inside of the limit opening, thereby limiting the winding roller 4, making it impossible for the winding roller 4 to rotate. When the electromagnet is energized in the reverse direction, the opposite poles of the electromagnet and the magnet limit block are opposite to each other, so that the electromagnet pulls the magnet limit block to move in the direction of leaving the limit opening through magnetic force, thereby releasing the limit on the winding roller 4, and making the winding roller 4 reset under the torsion force of the torsion spring, which is conducive to driving the winding roller 4 to rotate, reset and resume winding, thereby realizing the limit and reset control of the winding roller 4, which is conducive to adjusting the unfolding position of the transparent film 5 and the sunshade film cloth 6.

[0118] As an optional embodiment, the air induction component further includes:

[0119] The moving boxes 14 are arranged one by one corresponding to the straight rods 10 and are slidably mounted on the brackets of the greenhouse frame 1. The moving boxes 14 are rotatably connected to the corresponding straight rods 10;

[0120] The third motor 15 is fixed inside the moving box 14, and the output shaft of the third motor 15 penetrates the moving box 14 and drives the straight rod 10 to rotate;

[0121] The mobile box 14 can install the third motor 15. After the third motor 15 is started, it drives the straight rod 10 to rotate through the output shaft. After the straight rod 10 rotates, it can drive the canvas 901 to adjust the angle, so as to achieve airflow diversion in different directions by adjusting the angle of the canvas 901. When the wind force and direction detector 16 detects the wind direction, the canvas 901 is controlled to rotate in the direction of the wind direction, which is beneficial to improve the airflow diversion effect.

[0122] As an optional embodiment, the sunshade adjustment assembly further includes:

[0123] A plurality of magnetic metal sheets 18 are respectively fixed to the edges of the transparent film 5 and the sunshade film cloth 6;

[0124] Magnets 19 are fixed to both ends of the greenhouse frame 1;

[0125] The magnetic metal sheet 18 is fixed to the edges of the transparent film 5 and the sunshade film cloth 6. After being unfolded, the magnetic metal sheet 18 is adsorbed on the left and right sides of the magnet 19. The outside of the magnetic metal sheet 18 is wrapped with a rubber layer, so that under the adsorption action of the magnet 19, the edges of the transparent film 5 and the sunshade film cloth 6 are sealed by magnetic attraction, which is beneficial to improve the sealing effect when the greenhouse frame 1 is sealed and shielded by the transparent film 5 and the sunshade film cloth 6.

[0126] like Figure 1 A control method for a greenhouse temperature control device is shown, a controller is fixed on the side wall of a greenhouse frame 1, and the control method comprises the following steps:

[0127] The controller receives wind direction information detected by the wind force and direction detector 16;

[0128] The controller generates drive control information according to the wind direction information, and the drive control information is used to control the start of the third motor 15;

[0129] The controller sends the driving control information to the third motor 15 to control the third motor 15 to start driving the straight rod 10 to rotate in the direction of the wind direction information;

[0130] The wind force and direction detector 16 detects the wind direction, detects the wind direction information, and sends the wind direction information to the controller. After receiving the wind direction information, the controller generates drive control information according to the wind direction information. Then the controller sends the drive control information to the third motor 15 to control the third motor 15 to start and drive the straight rod 10 to rotate in the direction of the wind direction information.

[0131] As an optional embodiment, it also includes:

[0132] The controller receives wind information detected by the wind force and direction detector 16;

[0133] The controller compares the wind force information with the judged wind force manually input by the controller. When the wind force information is greater than or equal to the judged wind force, the controller generates automatic ventilation control information. When the wind force information is less than the judged wind force, the controller generates active ventilation control information. The automatic ventilation control information is used to control the sunshade adjustment component to start automatic ventilation, and the active ventilation control information is used to control the induced draft component to start active ventilation.

[0134] The controller sends the automatic ventilation control information to the sunshade adjustment component to control the sunshade adjustment component to start automatic ventilation;

[0135] The controller sends active ventilation control information to the induced draft component to control the induced draft component to start active ventilation;

[0136] The wind force and direction detector 16 detects the wind force information and sends the wind force information to the controller, which compares the wind force information with the judged wind force manually input by the controller. When the wind force information is greater than or equal to the judged wind force, the controller generates automatic ventilation control information, which the controller sends to the sunshade adjustment component to control the sunshade adjustment component to start automatic ventilation. When the wind force information is less than the judged wind force, the controller generates active ventilation control information, which the controller sends to the induced draft component to control the induced draft component to start active ventilation.

[0137] As an optional embodiment, a temperature sensor is installed inside the greenhouse frame 1, and a light detector is installed outside the greenhouse frame 1, and further includes:

[0138] The controller receives temperature information F detected by the temperature sensor;

[0139] The controller receives light intensity information CD detected by the light detector;

[0140] The controller brings the temperature information F and the standard temperature information F0 manually input by the controller into the judgment formula F>F0, and brings the light intensity information CD and the standard light intensity CD0 manually input by the controller into CD>CD0. When both are met, the controller generates sunshade and cooling control information, and the cooling control information is used to control the sunshade adjustment component to switch to the ventilation and sunshade state. When only F>F0 is met, the controller generates light transmission and cooling control information, and the light transmission and cooling control information is used to control the sunshade adjustment component to switch to the ventilation and light transmission state.

[0141] The controller sends the sunshade and cooling control information to the sunshade adjustment component to control the sunshade adjustment component to switch to the ventilation and sunshade state;

[0142] The controller sends the light transmission and cooling control information to the sunshade adjustment component to control the sunshade adjustment component to switch to the ventilation and light transmission state;

[0143] The temperature sensor detects the temperature of the greenhouse frame 1 and obtains the temperature information F. The light detector detects the external light intensity and obtains the light intensity information CD. The staff manually inputs the standard temperature information F0 and the standard light intensity CD0 through the controller. The controller substitutes the temperature information F and the standard temperature information F0 into the judgment formula F>F0, and substitutes the light intensity information CD and the standard light intensity CD0 into CD>CD0. When both judgment formulas meet the requirements, that is, the temperature of the greenhouse frame 1 is greater than the standard temperature information F0, and the external light intensity is greater than the standard light intensity CD0, the controller generates the shading and cooling control information, and then the controller sends the shading and cooling control information to the shading adjustment component to control the shading adjustment component to switch to the ventilation and shading state. When only F>F0 is met, that is, the temperature of the greenhouse frame 1 is greater than the standard temperature information F0, and the external light intensity is less than the standard light intensity CD0, the controller generates the light transmission and cooling control information, and then the controller sends the light transmission and cooling control information to the shading adjustment component to control the shading adjustment component to switch to the ventilation and light transmission state. In other cases, the controller does not respond.

[0144] Working principle of the present invention: the greenhouse frame 1 is the main structure of the greenhouse, and the interior of the greenhouse frame 1 is the internal space of the greenhouse. The staff works in the internal space of the greenhouse frame 1, and the fixed frame 2 and the movable frame 3 cooperate with each other to drive the sunshade adjustment component for adjustment. When the internal temperature of the greenhouse frame 1 is high and needs to be cooled down, if the external wind speed is sufficient and the external light intensity will not cause the internal temperature of the greenhouse frame 1 to rise, the staff controls the sunshade adjustment component to switch to the ventilation and light transmission state, so that the interior of the greenhouse frame 1 is cooled down under the action of the external airflow, and at this time, since the external light intensity will not cause the internal temperature of the greenhouse frame 1 to rise, the greenhouse frame 1 will not be cooled down. Shading, when the external wind speed is sufficient and the external light intensity will cause the internal temperature of the greenhouse frame 1 to rise, the staff controls the sunshade adjustment component to switch to the ventilation and sunshade state, so that the greenhouse frame 1 is ventilated and cooled under the shading condition, thereby using natural airflow to cool the greenhouse frame 1, and shading the greenhouse frame 1 to avoid light causing the internal temperature of the greenhouse frame 1 to rise. Similarly, by switching the greenhouse frame 1 between the sealed sunshade and sealed light-transmitting states, the internal temperature of the greenhouse frame 1 is adjusted and controlled, which is conducive to using the natural environment to adjust the temperature of the greenhouse frame 1, and there is no need to actively control the temperature of the greenhouse frame 1 through electric energy, which is conducive to saving energy for controlling the temperature of the greenhouse frame 1;

[0145] When the outside wind speed is insufficient and the greenhouse frame 1 is opened, there is no airflow outside, making it difficult to drive the airflow inside the greenhouse frame 1 for temperature control. At this time, the induced draft component is started, and the induced draft component can actively drive the flow of air, which is beneficial to actively cool down the interior of the greenhouse frame 1, thereby facilitating the control of the internal temperature of the greenhouse frame 1.

[0146] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A greenhouse temperature control device, comprising a greenhouse frame (1), wherein the greenhouse frame (1) comprises an arc-shaped frame, characterized in that: Also includes: A plurality of fixed frames (2) are fixed on the side wall of the arc-shaped frame in an array along the trajectory of the arc-shaped frame, and first openings (201) are provided on both sides of the fixed frames (2); A plurality of movable skeletons (3) are slidably mounted on the side wall of the arc-shaped skeleton in an array along the trajectory of the arc-shaped skeleton, the movable skeleton (3) is driven by a movable driving assembly, the fixed skeleton (2) and the movable skeleton (3) are arranged in sequence and spaced apart, and second openings (301) are provided on both sides of the movable skeleton (3); A plurality of sunshade adjustment components are respectively installed on both sides of the fixed frame (2) and between the adjacent movable frame (3), so as to switch between a sealed sunshade state and a ventilated sunshade state, a sealed light-transmitting state, and a ventilated light-transmitting state through movement and adjustment of the movable frame (3); Air induction components, installed at both ends of the greenhouse frame (1), used to detect wind direction and wind force, so as to actively drive airflow to flow through the greenhouse frame (1) when the wind force is insufficient; The air induction component comprises: A plurality of box bodies (8) are divided into two groups and are fixed in an array at two ends of the greenhouse frame (1); an air inlet (802) is provided at the top of the box body (8); and an air outlet (803) is provided at one end of the box body (8) facing the interior of the greenhouse frame (1); A plurality of lifting platforms (9) are correspondingly inserted into the interior of the air inlet (802), a canvas (901) is fixed to the bottom of the lifting platform (9), a support frame (801) is fixed to the bottom of the canvas (901), and the support frame (801) is fixed to the interior of the box body (8); A plurality of straight rods (10) are correspondingly slidably inserted into the interior of the box body (8), and one end of the straight rods is fixedly connected to the lifting platform (9); A plurality of lifting drive components, respectively mounted on the sides of the box body (8) and used for driving the straight rod (10) to move; A wind force and direction detector (16) fixed on the outer wall of one of the lifting platforms (9); A plurality of ventilation fans (17) are divided into two groups and are respectively fixedly embedded at two ends of the greenhouse frame (1).

2. A greenhouse temperature control device according to claim 1, characterized in that: The sunshade adjustment component comprises: Four winding rollers (4), two of which are rotatably mounted inside the fixed frame (2), and the other two are rotatably mounted inside the movable frame (3); The transparent film (5) has two ends that pass through the first opening (201) and the second opening (301) respectively and are then rolled up on the outside of the winding roller (4) between one side of the fixed frame (2) and the adjacent movable frame (3); The sunshade film cloth (6) has two ends which pass through the first opening (201) and the second opening (301) respectively and are then rolled up on the outside of the winding roller (4) between the other side of the fixed frame (2) and the adjacent movable frame (3); A plurality of magnetic limit assemblies are installed between the winding roller (4) and the corresponding fixed frame (2) or the movable frame (3) to limit the rotation of the winding roller (4).

3. A greenhouse temperature control device according to claim 2, characterized in that: The sunshade adjustment assembly also includes: A membrane cloth vent (501) is provided at one end of the transparent membrane (5); The ventilation end (601) is arranged at one end of the sunshade film cloth (6), and a plurality of linear openings (602) are provided in a linear array on the side of the ventilation end (601).

4. A greenhouse temperature control device according to claim 3, characterized in that: The magnetic limit assembly comprises: A magnet limit block is slidably inserted at the end of the winding roller (4); An electromagnet fixed inside the winding roller (4); A limiting opening is provided on a side wall of the corresponding fixed frame (2) or the movable frame (3); A torsion spring is sleeved on the outside of the winding roller (4), and two ends of the torsion spring are respectively clamped between the fixed frame (2) and the winding roller (4) or between the movable frame (3) and the winding roller (4).

5. A greenhouse temperature control device according to claim 4, characterized in that: The air induction component also includes: A movable box (14) is arranged in one-to-one correspondence with the straight rods (10) and is slidably mounted on a bracket of the greenhouse frame (1); the movable box (14) is rotatably connected to the corresponding straight rod (10); The third motor (15) is fixed inside the moving box (14); the output shaft of the third motor (15) passes through the moving box (14) and drives the straight rod (10) to rotate.

6. A greenhouse temperature control device according to claim 5, characterized in that: The sunshade adjustment assembly also includes: A plurality of magnetic metal sheets (18) are respectively fixed to the edges of the transparent film (5) and the sunshade film cloth (6); Magnets (19) are respectively fixed to two ends of the greenhouse frame (1).

7. A control method for a greenhouse temperature control device, applicable to a greenhouse temperature control device as claimed in any one of claims 5 to 6, characterized in that: A controller is fixed on the side wall of the greenhouse frame (1), and the control method comprises the following steps: The controller receives wind direction information detected by the wind force and direction detector (16); The controller generates drive control information according to the wind direction information, wherein the drive control information is used to control the start of the third motor (15); The controller sends the driving control information to the third motor (15) to control the third motor (15) to start driving the straight rod (10) to rotate in the direction of the wind direction information.

8. A control method for a greenhouse temperature control device according to claim 7, characterized in that: Also includes: The controller receives wind information detected by the wind force and direction detector (16); The controller compares the wind force information with the judged wind force manually input by the controller, and when the wind force information is greater than or equal to the judged wind force, the controller generates automatic ventilation control information, and when the wind force information is less than the judged wind force, the controller generates active ventilation control information, the automatic ventilation control information is used to control the sunshade adjustment component to start automatic ventilation, and the active ventilation control information is used to control the air induction component to start active ventilation; The controller sends the automatic ventilation control information to the sunshade adjustment component to control the sunshade adjustment component to start automatic ventilation; The controller sends the active ventilation control information to the air induction component to control the air induction component to start active ventilation.

9. A control method for a greenhouse temperature control device according to claim 7, characterized in that: A temperature sensor is installed inside the greenhouse frame (1), a light detector is installed outside the greenhouse frame (1), and further comprises: The controller receives temperature information F detected by the temperature sensor; The controller receives light intensity information CD detected by the light detector; The controller brings the temperature information F and the standard temperature information F0 manually input by the controller into the judgment formula F>F0, brings the light intensity information CD and the standard light intensity CD0 manually input by the controller into CD>CD0, and when both are met, the controller generates sunshade and cooling control information, and the cooling control information is used to control the sunshade adjustment component to switch to the ventilation and sunshade state, and when only F>F0 is met, the controller generates light transmission and cooling control information, and the light transmission and cooling control information is used to control the sunshade adjustment component to switch to the ventilation and light transmission state; The controller sends the sunshade and cooling control information to the sunshade adjustment component to control the sunshade adjustment component to switch to the ventilation and sunshade state; The controller sends the light transmission and temperature reduction control information to the sunshade adjustment component to control the sunshade adjustment component to switch to a ventilation and light transmission state.

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