Greenhouse system applied to anti-typhoon protection and control method thereof

Abstract

The invention discloses a greenhouse system applied to anti-typhoon protection and a control method thereof, the greenhouse system comprises a greenhouse framework, the greenhouse framework is covered with a greenhouse film, the bottom of the greenhouse framework is provided with a lifting system, and the lifting system is an electric push rod; the electric push rod comprises a sleeve, a fixing ring, a driving motor, a transmission gear box and a telescopic push rod. According to the greenhouse system applied to anti-typhoon protection and the control method of the greenhouse system, the lifting mechanism is arranged, and the greenhouse framework is mounted at the top of the electric push rod, so that the greenhouse framework can be driven by the lifting mechanism to ascend and descend, the active disaster prevention effect is achieved, traditional passive wind resistance is converted into active height reduction wind sheltering, and the safety of the greenhouse system is improved. According to the method, the collapse risk of the greenhouse in the typhoon period is substantially reduced fundamentally, group control synchronization can be achieved, meanwhile, the method is flexible and reliable, the efficiency of one-key group control and the flexibility of single-column independent control are both achieved, and the practicability is high when the method is applied.

Description

Technical Field

[0001] This invention belongs to the field of agricultural facility equipment technology, and in particular relates to a greenhouse system and its control method for typhoon protection. Background Technology

[0002] A greenhouse is a facility used for growing crops. Covered with transparent materials (such as glass or plastic film), it can regulate the internal temperature and humidity to provide a suitable growing environment for plants. Its core principle is the greenhouse effect: the covering material allows short-wave radiation from the sun to enter, but blocks long-wave radiation emitted from the ground, thus locking in heat.

[0003] Most existing greenhouses use steel frames or galvanized pipes of fixed height as supporting columns, and the overall structure is tall and open. When encountering extreme weather disasters such as strong typhoons and hurricanes, their large windward area leads to a sharp increase in wind load, which can easily cause the greenhouse to twist, deform or even collapse, resulting in serious property damage and production interruption.

[0004] Currently, countermeasures against such risks mainly rely on strengthening the structure (such as thickening columns and adding diagonal braces) or temporary reinforcement (such as binding with ropes), which is a passive defense mode and suffers from high costs, low efficiency, and slow emergency response. In addition, although some automated greenhouses have environmental control functions such as ventilation and shading, there is still no intelligent lifting support system that can actively, quickly, and holistically lower the height of the greenhouse to avoid wind disasters.

[0005] While electric linear actuator technology is widely used in industrial automation, its integration into agricultural facilities, combined with highly reliable wireless networking, precise synchronization control algorithms, and multiple safety protection mechanisms, to construct a group-controlled lifting column system specifically designed to withstand typhoons, remains a technological gap. Existing wireless communication solutions (such as Wi-Fi and Bluetooth) generally suffer from insufficient coverage, poor penetration, susceptibility to interference, and low synchronization accuracy in the complex electromagnetic environment and large-scale deployment scenarios of agriculture, making it difficult to meet the operational requirements of such safety-critical systems.

[0006] Therefore, there is an urgent need to develop a greenhouse typhoon-resistant lifting column system with remote group control, synchronous lifting, active risk avoidance, high reliability and multiple safety guarantees, so as to improve the disaster resistance and intelligence level of agricultural facilities. Summary of the Invention

[0007] The purpose of this invention is to provide a greenhouse system and its control method for typhoon protection, so as to solve the technical problems mentioned in the background art.

[0008] To achieve the above objectives, the specific technical solution of the present invention is as follows: a greenhouse system and control method for typhoon protection, comprising a greenhouse frame, the outside of which is covered with a greenhouse film, and a lifting system provided at the bottom of the greenhouse frame, wherein the lifting system is an electric push rod;

[0009] The electric push rod includes a sleeve, a retaining ring, a drive motor, a transmission gearbox, and a telescopic push rod. The bottom of the greenhouse frame is provided with an integrally formed telescopic push rod. The bottom of the telescopic push rod is embedded in the inside of the sleeve. The bottom of the sleeve is provided with a transmission gearbox. The top of the transmission gearbox is equipped with a drive motor. The drive motor is connected to the sleeve through a gear set inside the transmission gearbox.

[0010] A synchronization controller is installed externally on the drive motor, and a relay is provided externally on the drive motor.

[0011] Preferably, the bottom of the transmission gearbox is provided with a concrete base, and an installation groove is formed inside the concrete base, into which the transmission gearbox is embedded.

[0012] Preferably, a mounting plate is fixedly connected to the side of the transmission gearbox, bolts are inserted inside the mounting plate, a fixing pile is embedded inside the concrete base, an internal threaded hole is opened inside the fixing pile, and the bolt is connected to the fixing pile through the thread.

[0013] Preferably, a detachable retaining ring is installed at the top of the sleeve, and the retaining ring is sleeved on the outside of the telescopic push rod.

[0014] Preferably, the greenhouse film has a sealing section at the front, a detachable door is installed below the sealing section, and the greenhouse film has film rolls on both sides.

[0015] Preferably, a pressure roller is inserted inside the film roll, and uprights are embedded at both ends of the pressure roller, and the film roll is symmetrically distributed.

[0016] Preferably, the synchronization controller is connected to a handheld industrial-grade remote controller via an electrical signal. The synchronization controller includes a dedicated radio communication module, which is connected to a non-volatile memory, a hard limit switch input interface, an integrated H-bridge motor drive circuit, and a high-precision current detection circuit. The dedicated radio communication module contains a device identification code and an encrypted pairing key.

[0017] The surface of the handheld industrial remote control is a graphical human-machine interface. The internal features of the handheld industrial remote control include single-column inching calibration, parameter setting, system self-test and one-key group control for descent / ascent. The parameter setting includes target height setting, synchronization timestamp setting and overcurrent threshold setting.

[0018] The synchronous controller is connected to the DC / AC main power supply, which in turn is connected to the lightning protection device and the main circuit breaker.

[0019] Preferably, the control method includes the following:

[0020] S1, System power-on and network initialization:

[0021] (11) Close the main power switch to power on all synchronous controllers and motor drive boards;

[0022] (12) Each controller automatically starts its built-in dedicated radio module (such as LoRa or 433MHz RF module) to scan and register with the preset communication frequency band and network ID (or channel). Each controller sends a network access request to the central control terminal, such as a handheld industrial remote controller, including its unique device identification code and online status.

[0023] (13) The central control terminal receives all network access requests, completes identity authentication (verifies pairing code), adds the authenticated column units to the control list, and generates the corresponding virtual column list on the control interface to display their status (e.g., online, standby, current height).

[0024] S2, group control synchronous descent command execution:

[0025] (21) The central control terminal receives the "one-click descent" command issued by the user, which includes the target descent height parameter, for example: 1.5 meters;

[0026] (22) The central terminal sends a synchronous descent command packet to all certified column units in the network simultaneously via a dedicated radio network in a broadcast or multicast manner. The command packet includes: action command (descent), target absolute height or relative descent displacement, agreed synchronous start timestamp and check code.

[0027] (23) Each column controller receives the instruction packet via a dedicated radio, verifies the legality of the instruction (pairing code, check code), and records the start time in the local clock. When the agreed synchronization timestamp arrives precisely, each controller starts its high-power brushless DC motor synchronously.

[0028] (24) Synchronous lifting control: Each controller calculates the actual displacement and speed of the push rod in real time based on the high-precision planetary gear reduction ratio and feedback from the motor encoder or built-in displacement sensor. During synchronous operation, each controller periodically reports its current height, speed and motor current to the central terminal through a dedicated radio network.

[0029] The central terminal receives all data in real time and makes dynamic adjustments using a master-slave synchronization algorithm or a deviation coupling control algorithm: if it detects that the progress of a certain column is lagging behind the average progress of the group, it will slightly increase the PWM duty cycle of its motor by issuing an RF command.

[0030] If a column is detected to be ahead, its PWM duty cycle is slightly reduced. This closed-loop feedback mechanism enables dynamic fine-tuning of the lifting speed of all columns, ensuring synchronization and avoiding structural stress concentration.

[0031] (25) When all columns have been confirmed by the sensors to have reached the target height, or when the central terminal determines that all units have been in place, it broadcasts a "stop" command via RF and all motors stop synchronously.

[0032] S3, Single-column independent calibration and maintenance mode:

[0033] (31) On the central control terminal interface, users can select a specific column by using its unique identification code;

[0034] (32) The central terminal sends a jog control command to the dedicated radio address of the target column to raise / lower it, and other columns do not respond to this command.

[0035] (33) Operators can observe the physical scale of the column on site and cross-verify it with the displacement feedback of the electrical control system to ensure accuracy;

[0036] S4, Security Monitoring and Emergency Protection:

[0037] (41) Overload and stall protection: Each controller detects the motor current in real time through integrated circuit. If any column encounters an obstacle during descent, causing the current to surge and exceed the preset safety threshold, the column will immediately cut off the motor drive and stop running. At the same time, it will send an "emergency stop" broadcast signal to the central terminal via a dedicated radio. After receiving the signal, the central terminal will immediately broadcast an "emergency stop" command to all other columns, triggering a full-line linkage emergency stop to prevent structural damage or motor burnout.

[0038] (42) Power interruption memory: The system is equipped with a backup power supply. When there is an unexpected power outage, the controller uses the backup power supply to write key data such as the current height status and operating mode of each column into the non-volatile memory. After the power supply is restored, the system automatically reads the stored data and restores the state before the power outage, or prompts the user to perform subsequent operations.

[0039] (43) Mechanical limit protection: In addition to software limit, a hard limit switch is set at the end of the physical stroke of the push rod as the final safety barrier;

[0040] S5, Status Feedback and Disaster Recovery:

[0041] (51) During the entire lifting process, the central control terminal continuously receives the status data of each column through a dedicated wireless network and dynamically displays the real-time height, speed, current and status (normal / alarm) of all columns on the interface, forming a visual monitoring screen.

[0042] (52) After the typhoon, the user sends a “one-click rise” command through the central terminal. All the columns rise smoothly to the original preset height under synchronous control, restoring the normal production function of the greenhouse.

[0043] The greenhouse system and its control method for typhoon protection according to the present invention have the following advantages:

[0044] 1. This greenhouse system and its control method for typhoon protection utilize a lifting mechanism with a greenhouse frame installed on top of an electric push rod. This allows the greenhouse frame to be raised and lowered via the lifting mechanism, achieving proactive disaster prevention. It transforms traditional passive wind resistance into proactive wind-avoidance, significantly reducing the risk of greenhouse collapse during typhoons. Furthermore, it enables synchronized group control. A high-precision synchronous control algorithm ensures the consistency of movement for several or even hundreds of columns, protecting the stability and safety of the overall greenhouse structure. It is also flexible and reliable, combining the efficiency of "one-click group control" with the flexibility of "independent control of a single column," facilitating installation, debugging, and maintenance, and demonstrating strong practicality in application.

[0045] 2. This greenhouse system and its control method for typhoon protection have multiple safety features in practical applications. It has constructed a multi-layered safety protection system including electrical overload, communication linkage, mechanical limit, and power failure memory. It has high reliability and can achieve intuitive management. By using a central control interface and physical scales on the columns, it realizes the digitalization and visualization of operation and monitoring. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 This is a schematic diagram of the overall height reduction structure of the greenhouse according to the present invention;

[0049] Figure 3 This is a schematic diagram of the greenhouse frame extension structure of the present invention;

[0050] Figure 4 This is a schematic diagram of the greenhouse frame retraction structure of the present invention;

[0051] Figure 5 For the present invention Figure 3 Enlarged view of the structure of section B;

[0052] Figure 6 For the present invention Figure 3 Enlarged view of the structure of section A in the middle;

[0053] Figure 7 This is a system diagram of the synchronization controller of the present invention;

[0054] The markings in the diagram are as follows: 1. Greenhouse frame; 2. Electric push rod; 3. Sleeve; 4. Fixing ring; 5. Drive motor; 6. Transmission gearbox; 7. Synchronization controller; 8. Telescopic push rod; 9. Relay; 10. Greenhouse film; 11. Enclosure; 12. Detachable door; 13. Film roll; 14. Pressure roller; 15. Upright pole; 16. Concrete base; 17. Mounting groove; 18. Fixing pile; 19. Mounting plate; 20. Bolt. Detailed Implementation

[0055] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0056] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0059] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0060] To better understand the purpose, structure, and function of this invention, the following detailed description, in conjunction with the accompanying drawings, provides an overview of a greenhouse system and its control method for typhoon protection.

[0061] like Figure 1-7 As shown, a greenhouse system and its control method for typhoon protection according to the present invention includes a greenhouse frame 1, a greenhouse film 10 covering the outside of the greenhouse frame 1, and a lifting system at the bottom of the greenhouse frame 1, wherein the lifting system is an electric push rod 2.

[0062] The electric push rod 2 includes a sleeve 3, a fixing ring 4, a drive motor 5, a transmission gearbox 6, and a telescopic push rod 8. The bottom of the greenhouse frame 1 is provided with an integrally formed telescopic push rod 8. The bottom of the telescopic push rod 8 is embedded in the inside of the sleeve 3. The bottom of the sleeve 3 is provided with a transmission gearbox 6. The top of the transmission gearbox 6 is equipped with a drive motor 5. The drive motor 5 is connected to the sleeve 3 through the gear set inside the transmission gearbox 6.

[0063] A synchronous controller 7 is installed externally on the drive motor 5, and a relay 9 is provided externally on the drive motor 5.

[0064] The bottom of the transmission gearbox 6 is provided with a concrete base 16, and an installation groove 17 is opened inside the concrete base 16, into which the transmission gearbox 6 is embedded.

[0065] The side of the transmission gearbox 6 is fixedly connected to the mounting plate 19, and the mounting plate 19 is inserted with bolts 20. The concrete base 16 is embedded with fixing piles 18, and the fixing piles 18 have internal threaded holes. The bolts 20 are connected to the fixing piles 18 through the threads.

[0066] A detachable retaining ring 4 is installed on the top of the sleeve 3, and the retaining ring 4 is sleeved on the outside of the telescopic push rod 8.

[0067] The greenhouse film 10 has a sealing section 11 at the front, a detachable door 12 installed below the sealing section 11, and film rolls 13 on both sides of the greenhouse film 10.

[0068] A pressure roller 14 is inserted inside the film roll 13, and uprights 15 are embedded at both ends of the pressure roller 14. The film roll 13 is symmetrically distributed.

[0069] The synchronization controller 7 is connected to a handheld industrial-grade remote control via electrical signals. The synchronization controller 7 includes a dedicated radio communication module, which is connected to a non-volatile memory, a hard limit switch input interface, an integrated H-bridge motor drive circuit, and a high-precision current detection circuit. The dedicated radio communication module contains a device identification code and an encrypted pairing key.

[0070] The surface of the handheld industrial remote control is a graphical human-machine interface. The internal features of the handheld industrial remote control include single-column inching calibration, parameter setting, system self-test and one-key group control for descent / ascent. The parameter setting includes target height setting, synchronization timestamp setting and overcurrent threshold setting.

[0071] The synchronous controller 7 is connected to the DC / AC main power supply, which is connected to the lightning protection device and the main circuit breaker, respectively.

[0072] The control methods include the following:

[0073] S1, System power-on and network initialization:

[0074] (11) Close the main power switch to power on all synchronous controllers and motor drive boards;

[0075] (12) Each controller automatically starts its built-in dedicated radio module (such as LoRa or 433MHz RF module) to scan and register with the preset communication frequency band and network ID (or channel). Each controller sends a network access request to the central control terminal, such as a handheld industrial remote controller, including its unique device identification code and online status.

[0076] (13) The central control terminal receives all network access requests, completes identity authentication (verifies pairing code), adds the authenticated column units to the control list, and generates the corresponding virtual column list on the control interface to display their status (e.g., online, standby, current height).

[0077] S2, group control synchronous descent command execution:

[0078] (21) The central control terminal receives the "one-click descent" command issued by the user, which includes the target descent height parameter, for example: 1.5 meters;

[0079] (22) The central terminal sends a synchronous descent command packet to all certified column units in the network simultaneously via a dedicated radio network in a broadcast or multicast manner. The command packet includes: action command (descent), target absolute height or relative descent displacement, agreed synchronous start timestamp and check code.

[0080] (23) Each column controller receives the instruction packet via a dedicated radio, verifies the legality of the instruction (pairing code, check code), and records the start time in the local clock. When the agreed synchronization timestamp arrives precisely, each controller starts its high-power brushless DC motor synchronously.

[0081] (24) Synchronous lifting control: Each controller calculates the actual displacement and speed of the push rod in real time based on the high-precision planetary gear reduction ratio and feedback from the motor encoder or built-in displacement sensor. During synchronous operation, each controller periodically reports its current height, speed and motor current to the central terminal through a dedicated radio network.

[0082] The central terminal receives all data in real time and makes dynamic adjustments using a master-slave synchronization algorithm or a deviation coupling control algorithm: if it detects that the progress of a certain column is lagging behind the average progress of the group, it will slightly increase the PWM duty cycle of its motor by issuing an RF command.

[0083] If a column is detected to be ahead, its PWM duty cycle is slightly reduced. This closed-loop feedback mechanism enables dynamic fine-tuning of the lifting speed of all columns, ensuring synchronization and avoiding structural stress concentration.

[0084] (25) When all columns have been confirmed by the sensors to have reached the target height, or when the central terminal determines that all units have been in place, it broadcasts a "stop" command via RF and all motors stop synchronously.

[0085] S3, Single-column independent calibration and maintenance mode:

[0086] (31) On the central control terminal interface, users can select a specific column by using its unique identification code;

[0087] (32) The central terminal sends a jog control command to the dedicated radio address of the target column to raise / lower it, and other columns do not respond to this command.

[0088] (33) Operators can observe the physical scale of the column on site and cross-verify it with the displacement feedback of the electrical control system to ensure accuracy;

[0089] S4, Security Monitoring and Emergency Protection:

[0090] (41) Overload and stall protection: Each controller detects the motor current in real time through integrated circuit. If any column encounters an obstacle during descent, causing the current to surge and exceed the preset safety threshold, the column will immediately cut off the motor drive and stop running. At the same time, it will send an "emergency stop" broadcast signal to the central terminal via a dedicated radio. After receiving the signal, the central terminal will immediately broadcast an "emergency stop" command to all other columns, triggering a full-line linkage emergency stop to prevent structural damage or motor burnout.

[0091] (42) Power interruption memory: The system is equipped with a backup power supply. When there is an unexpected power outage, the controller uses the backup power supply to write key data such as the current height status and operating mode of each column into the non-volatile memory. After the power supply is restored, the system automatically reads the stored data and restores the state before the power outage, or prompts the user to perform subsequent operations.

[0092] (43) Mechanical limit protection: In addition to software limit, a hard limit switch is set at the end of the physical stroke of the push rod as the final safety barrier;

[0093] S5, Status Feedback and Disaster Recovery:

[0094] (51) During the entire lifting process, the central control terminal continuously receives the status data of each column through a dedicated wireless network and dynamically displays the real-time height, speed, current and status (normal / alarm) of all columns on the interface, forming a visual monitoring screen.

[0095] (52) After the typhoon, the user sends a “one-click rise” command through the central terminal. All the columns rise smoothly to the original preset height under synchronous control, restoring the normal production function of the greenhouse.

[0096] This greenhouse system and its control method, applied to typhoon protection, utilizes a robust communication infrastructure: the entire system is built on dedicated radio technology to create a private, reliable, long-range, low-power wireless network. It also features authentication: each column unit has a unique device identification code, which is used for secure authentication with the central terminal via a pairing code to prevent unauthorized access. Furthermore, it implements a synchronization mechanism: employing a dual strategy of "timestamp synchronization combined with closed-loop feedback fine-tuning," ensuring all units start at the same precise time, guaranteeing synchronized initial actions. The central terminal collects the status of each unit in real time via the RF network and dynamically adjusts the power of each motor using a synchronization algorithm to eliminate minor errors during operation and ensure full synchronization. The safety system includes: electrical protection: local current detection for overload protection; communication linkage: any unit failure can trigger a network-wide emergency stop; data security: power-off memory function to ensure no data loss; mechanical protection: dual protection of soft and hard limits; and human-machine interaction: flexible operation via the central terminal, enabling one-click group control and single-column inching, and providing a visual monitoring interface.

[0097] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A greenhouse system for typhoon protection, comprising a greenhouse frame (1) and a greenhouse film (10) covering the outside of the greenhouse frame (1), characterized in that: The bottom of the greenhouse frame (1) is equipped with a lifting system, which is an electric push rod (2); The electric push rod (2) includes a sleeve (3), a fixing ring (4), a drive motor (5), a transmission gearbox (6), and a telescopic push rod (8). The bottom of the greenhouse frame (1) is provided with an integrally formed telescopic push rod (8). The bottom of the telescopic push rod (8) is embedded in the inside of the sleeve (3). The bottom of the sleeve (3) is provided with a transmission gearbox (6). The top of the transmission gearbox (6) is equipped with a drive motor (5). The drive motor (5) is connected to the sleeve (3) through the gear set inside the transmission gearbox (6). A synchronization controller (7) is installed on the outside of the drive motor (5), and a relay (9) is provided on the outside of the drive motor (5).

2. The greenhouse system for typhoon protection according to claim 1, characterized in that: The bottom of the transmission gearbox (6) is provided with a concrete base (16), and an installation groove (17) is opened inside the concrete base (16), and the transmission gearbox (6) is embedded inside the installation groove (17).

3. A greenhouse system for typhoon protection according to claim 2, characterized in that: The transmission gearbox (6) is fixedly connected to the side of the mounting plate (19), and the mounting plate (19) is inserted with bolts (20). The concrete base (16) is embedded with fixing piles (18), and the fixing piles (18) have internal threaded holes. The bolts (20) are connected to the fixing piles (18) by threads.

4. A greenhouse system for typhoon protection according to claim 1, characterized in that: A detachable retaining ring (4) is installed on the top of the sleeve (3), and the retaining ring (4) is sleeved on the outside of the telescopic push rod (8).

5. A greenhouse system for typhoon protection according to claim 1, characterized in that: The greenhouse film (10) has a sealing section (11) at the front, and a detachable door (12) is installed below the sealing section (11). The greenhouse film (10) has film rolls (13) on both sides.

6. A greenhouse system for typhoon protection according to claim 5, characterized in that: A pressure roller (14) is inserted inside the film roll (13), and uprights (15) are embedded at both ends of the pressure roller (14). The film roll (13) is symmetrically distributed.

7. A greenhouse system for typhoon protection according to claim 6, characterized in that: The synchronization controller (7) is connected to a handheld industrial remote control via electrical signals. The synchronization controller (7) includes a dedicated radio communication module, which is connected to a non-volatile memory, a hard limit switch input interface, an integrated H-bridge motor drive circuit, and a high-precision current detection circuit. The dedicated radio communication module contains a device identification code and an encryption pairing key. The surface of the handheld industrial remote control is a graphical human-machine interface. The internal features of the handheld industrial remote control include single-column inching calibration, parameter setting, system self-test and one-key group control for descent / ascent. The parameter setting includes target height setting, synchronization timestamp setting and overcurrent threshold setting. The synchronous controller (7) is connected to the DC / AC main power supply, which is connected to the lightning protection device and the main circuit breaker respectively.

8. A control method for a greenhouse system for typhoon protection according to any one of claims 1-7, characterized in that: The control methods include the following: S1, System power-on and network initialization: (11) Close the main power switch to power on all synchronous controllers and motor drive boards; (12) Each controller automatically starts its built-in dedicated radio module (such as LoRa or 433MHz RF module) to scan and register with the preset communication frequency band and network ID (or channel). Each controller sends a network access request to the central control terminal, such as a handheld industrial remote controller, including its unique device identification code and online status. (13) The central control terminal receives all network access requests, completes identity authentication (verifies pairing code), adds the authenticated column units to the control list, and generates the corresponding virtual column list on the control interface to display their status (e.g., online, standby, current height). S2, group control synchronous descent command execution: (21) The central control terminal receives the "one-click descent" command issued by the user, which includes the target descent height parameter, for example: 1.5 meters; (22) The central terminal sends a synchronous descent command packet to all certified column units in the network simultaneously via a dedicated radio network in a broadcast or multicast manner. The command packet includes: action command (descent), target absolute height or relative descent displacement, agreed synchronous start timestamp and check code. (23) Each column controller receives the instruction packet via a dedicated radio, verifies the legality of the instruction (pairing code, check code), and records the start time in the local clock. When the agreed synchronization timestamp arrives precisely, each controller starts its high-power brushless DC motor synchronously. (24) Synchronous lifting control: Each controller calculates the actual displacement and speed of the push rod in real time based on the high-precision planetary gear reduction ratio and feedback from the motor encoder or built-in displacement sensor. During synchronous operation, each controller periodically reports its current height, speed and motor current to the central terminal through a dedicated radio network. The central terminal receives all data in real time and makes dynamic adjustments using a master-slave synchronization algorithm or a deviation coupling control algorithm: if it detects that the progress of a certain column is lagging behind the average progress of the group, it will slightly increase the PWM duty cycle of its motor by issuing an RF command. If a column is detected to be ahead, its PWM duty cycle is slightly reduced. This closed-loop feedback mechanism enables dynamic fine-tuning of the lifting speed of all columns, ensuring synchronization and avoiding structural stress concentration. (25) When all columns have been confirmed by the sensors to have reached the target height, or when the central terminal determines that all units have been in place, it broadcasts a "stop" command via RF and all motors stop synchronously. S3, Single-column independent calibration and maintenance mode: (31) On the central control terminal interface, users can select a specific column by using its unique identification code; (32) The central terminal sends a jog control command to the dedicated radio address of the target column to raise / lower it, and other columns do not respond to this command. (33) Operators can observe the physical scale of the column on site and cross-verify it with the displacement feedback of the electrical control system to ensure accuracy; S4, Security Monitoring and Emergency Protection: (41) Overload and stall protection: Each controller detects the motor current in real time through integrated circuit. If any column encounters an obstacle during descent, causing the current to surge and exceed the preset safety threshold, the column will immediately cut off the motor drive and stop running. At the same time, it will send an "emergency stop" broadcast signal to the central terminal via a dedicated radio. After receiving the signal, the central terminal will immediately broadcast an "emergency stop" command to all other columns, triggering a full-line linkage emergency stop to prevent structural damage or motor burnout. (42) Power interruption memory: The system is equipped with a backup power supply. When there is an unexpected power outage, the controller uses the backup power supply to write key data such as the current height status and operating mode of each column into the non-volatile memory. After the power supply is restored, the system automatically reads the stored data and restores the state before the power outage, or prompts the user to perform subsequent operations. (43) Mechanical limit protection: In addition to software limit, a hard limit switch is set at the end of the physical stroke of the push rod as the final safety barrier; S5, Status Feedback and Disaster Recovery: (51) During the entire lifting process, the central control terminal continuously receives the status data of each column through a dedicated wireless network and dynamically displays the real-time height, speed, current and status (normal / alarm) of all columns on the interface, forming a visual monitoring screen. (52) After the typhoon, the user sends a "one-click rise" command through the central terminal. All the columns rise smoothly to the original preset height under synchronous control, restoring the normal production function of the greenhouse.

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