An energy-efficient control actuator

Abstract

This invention relates to the field of agricultural environmental control equipment technology, specifically to an energy-efficient optimized control actuator, comprising a control device, a greenhouse main structure, a temperature actuator, and a humidity actuator; the temperature actuator is connected to the control device; the humidity actuator is connected to the control device; the humidity actuator is located inside the greenhouse main structure; the temperature actuator is located outside the greenhouse main structure; the control device is connected to the greenhouse main structure; the control device is located inside the greenhouse main structure. This invention inputs monitored data into the control device, uses PID control to send control signals to the temperature actuator, thereby controlling the opening and closing of the shading curtain to regulate the temperature inside the greenhouse, and also achieves energy recovery and utilization through the opening and closing of the shading curtain; it also sends control signals to the humidity actuator to activate the sprinkler system, thereby regulating the humidity inside the greenhouse. This invention solves the problems of difficult temperature and humidity control inside greenhouses and the significant waste of resources within greenhouses.

Description

Technical Field

[0001] This invention relates to the field of agricultural environmental control equipment technology, specifically to an energy-efficient optimized control actuator. Background Technology

[0002] The high-efficiency and energy-saving temperature and humidity control actuator is a device that uses PID control to regulate the greenhouse environment. PID control can precisely regulate the environment and can adjust the temperature and humidity according to different crops to achieve the best environmental control effect.

[0003] Currently, temperature and humidity control actuators mainly consist of control and execution devices. When regulating the greenhouse environment, they cannot perform real-time adjustments based on detected and set data, leading to reduced crop quality and yield. To address this issue, existing technology proposes a solution: a smart environmental control system for greenhouses (patent publication number CN203606672U). This system uses a PID (Proportional-Integral-Derivative) method to adjust temperature and humidity, increasing the speed at which real-time values ​​reach desired values ​​and reducing system fluctuations. This further reduces the impact of the natural environment on the internal environment of the greenhouse, providing a more stable growing environment for crops.

[0004] While existing technologies have solved the problem of real-time control of greenhouse environments, the following issues remain: When controlling greenhouse environments in real time, the actuators contain too many electronic components. On the one hand, the complex environment inside greenhouses has a significant impact on complex electronic equipment, making it prone to damage and instability. On the other hand, too many electronic components can lead to increased power consumption, low energy utilization, and an inability to effectively save energy.

[0005] In view of the above, in order to overcome the above technical problems, the present invention proposes an energy-efficient optimized control actuator. Summary of the Invention

[0006] This invention provides an energy-efficient optimized control actuator that solves the problems of inability to control the greenhouse environment in real time, low energy utilization, and poor equipment stability. By inputting monitored data into the control device, PID control sends control signals to the temperature actuator to control the opening and closing of the shading curtain, thereby regulating the temperature inside the greenhouse and recovering energy through the opening and closing of the shading curtain. Control signals are also sent to the humidity actuator to control the operation of the sprinkler head, thereby regulating the humidity inside the greenhouse. Furthermore, the sprinkler head utilizes water pressure through an atomizing film to reduce costs and increase efficiency. This invention solves the problems of difficult temperature and humidity control inside greenhouses and the large amount of resource waste within greenhouses.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An energy-efficient optimized control actuator includes a greenhouse main structure, a temperature actuator, a humidity actuator, and a control device; characterized in that: the control device is connected to the temperature actuator; the control device is connected to the humidity actuator; the temperature actuator is connected to the outside of the greenhouse main structure; the humidity actuator is connected to the inside of the greenhouse main structure; the control device is connected to the inside of the greenhouse main structure, and monitoring data and set data are analyzed by PID control in the control device to determine whether the temperature actuator or the humidity actuator should operate.

[0009] Preferably, the temperature control device includes a shading curtain, a power rod, and a power unit; the shading curtain is connected to the power rod; the power rod is connected to the power unit; and the shading curtain, power rod, and power unit are installed inside the main structure of the greenhouse.

[0010] In the above scheme, when the control equipment sends a corresponding command to the temperature execution equipment, the power unit manipulates the shading curtain through the power rod to achieve precise control of the temperature environment inside the greenhouse.

[0011] Preferably, the power unit includes a device box, a device cover, a motor equipment box, and a generator equipment box; the device box is connected to the device cover; the motor equipment box and the generator equipment box are located inside the power unit.

[0012] In the above scheme, when the temperature inside the greenhouse needs to be increased or decreased, the motor equipment box in the device box is started, and the shading curtain is rolled up by the power rod. When the temperature inside the greenhouse needs to be kept warm, the generator equipment box in the device box is started, and the energy is recovered and utilized by the weight of the shading curtain through the power rod.

[0013] Preferably, the humidity control device includes a water pipe and a spray nozzle; the water pipe is connected to the spray nozzle; the water pipe is connected to the main structure of the greenhouse; and the water pipe and the spray nozzle are installed inside the main structure of the greenhouse.

[0014] In the above scheme, when the control equipment sends a corresponding instruction to the humidity execution equipment, the water pipe delivers water, which is then sprayed through the nozzle equipment to achieve precise control of the humidity environment inside the greenhouse.

[0015] Preferably, the nozzle device includes a water inlet pipe, a device cover, a water storage tank, and an atomizing membrane; the water delivery pipe is connected to the water inlet pipe; the water inlet pipe is connected to the water storage tank through the device cover; the water storage tank is connected to the atomizing membrane; the water inlet pipe, device cover, water storage tank, and atomizing membrane are installed inside the main structure of the greenhouse.

[0016] In the above scheme, when the water pipe is transporting water, the water source enters the water storage tank through the water receiving pipe, and the pressure is used to atomize the water through the atomizing membrane for sprinkler irrigation of the crops.

[0017] Preferably, there are six nozzle devices, namely a first nozzle device, a second nozzle device, a third nozzle device, a fourth nozzle device, a fifth nozzle device, and a sixth nozzle device. The first nozzle device, the second nozzle device, the third nozzle device, the fourth nozzle device, the fifth nozzle device, and the sixth nozzle device are all connected to the water supply pipe; the internal structure of the nozzle devices is the same.

[0018] In the above scheme, when the humidity control equipment starts working, it will irrigate the inside of the greenhouse evenly through six sprinkler heads.

[0019] Preferably, the control device includes a control box and a signal antenna. The signal antenna is connected to the control box, and the control box and signal antenna are installed inside the main structure of the greenhouse.

[0020] In the above scheme, the monitoring data is input into the control box, which processes the data and generates instructions through PID control. The instructions are transmitted through the signal antenna, thereby realizing the control of the humidity actuator and the temperature actuator.

[0021] Preferably, the control principle of the control equipment is PID control.

[0022] In the above scheme, the error between the actual output and the desired output of the control system is measured, and the control quantity is calculated based on the three parameters of proportional, integral and derivative. The input of the system is then adjusted to make the output as close as possible to the desired value.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. Compared to existing temperature and humidity control actuators, this invention inputs monitored data into a control device and uses PID control to send control signals to the temperature actuator, thereby controlling the opening and closing of the shading curtain to regulate the temperature inside the greenhouse. It also sends control signals to the humidity actuator, causing the sprinkler heads to operate and thus regulating the humidity inside the greenhouse. On one hand, PID control measures the error between the actual and desired output of the control system and calculates the control quantity based on proportional, integral, and derivative parameters to adjust the system input, making the output as close as possible to the desired value, ensuring precise control of the greenhouse environment. On the other hand, through the shading curtain and the main structure of the greenhouse, it utilizes solar energy to regulate the temperature inside the greenhouse, ensuring full utilization of solar energy and achieving energy conservation.

[0025] 2. This invention utilizes a temperature control device. When the temperature inside the greenhouse needs to be increased or decreased, the motor in the device box is activated, and the shading curtain is rolled up via a power rod. When the temperature inside the greenhouse needs to be maintained, the generator in the device box is activated, and the weight of the shading curtain is used to recycle energy from the generator via the power rod, further improving energy efficiency.

[0026] 3. This invention utilizes a humidity control device. When the control device sends a corresponding command to the humidity control device, the water pipe delivers water. The water source enters the water storage tank through the water inlet pipe, and the water is atomized by pressure through the atomizing membrane for spray irrigation of crops. This achieves precise control of the humidity environment inside the greenhouse and improves energy-saving effects. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is the external structure of the greenhouse of the present invention;

[0029] Figure 2 This is the internal structure of the greenhouse of the present invention;

[0030] Figure 3 This is a top view of the greenhouse of the present invention;

[0031] Figure 4 This is a detailed structural diagram of the nozzle device of the present invention;

[0032] Figure 5 This is a diagram showing the internal structure of the power unit of the present invention;

[0033] Figure 6 This is a schematic diagram of the PID control process of the present invention;

[0034] In the diagram: 1. Main structure of the greenhouse; 2. Temperature control device; 3. Humidity control device; 4. Control device; 21. Shading curtain; 22. Power rod; 23. Power unit; 231. Device box; 232. Device cover; 233. Electric motor equipment box; 234. Generator equipment box; 31. Water pipe; 32. Sprinkler head equipment; 3211. Water inlet pipe; 3212. Equipment cover; 3213. Water storage tank; 3214. Atomizing film; 321. First sprinkler head equipment; 322. Second sprinkler head equipment; 323. Third sprinkler head equipment; 324. Fourth sprinkler head equipment; 325. Fifth sprinkler head equipment; 326. Sixth sprinkler head equipment; 41. Control box; 42. Signal antenna; Detailed Implementation

[0035] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0036] Please see Figures 1 to 6 This invention provides an energy-efficient optimized control actuator, the technical solution of which is as follows:

[0037] As a specific embodiment of the present invention, refer to Figure 1 , Figure 3 and Figure 2 An energy-efficient optimized control actuator includes a greenhouse main structure 1, a temperature actuator 2, a humidity actuator 3, and a control device 4. The control device 4 is connected to both the temperature actuator 2 and the humidity actuator 3. The temperature actuator 2 is connected to the exterior of the greenhouse main structure 1, and the humidity actuator 3 is connected to the interior of the greenhouse main structure 1. Monitoring data and set data are analyzed via the control device 4 using PID control to determine whether the temperature actuator 2 or the humidity actuator 3 should operate.

[0038] As a specific embodiment of the present invention, refer to Figure 1 and Figure 5 The temperature control device (2) includes a sunshade curtain (21), a power rod (22), and a power unit (23); the sunshade curtain (21) is connected to the power rod (22); the power rod (22) is connected to the power unit (23); the sunshade curtain (21), the power rod (22), and the power unit (23) are installed inside the main structure (1) of the greenhouse; the power unit (23) includes a device box (231), a device cover (232), an electric motor equipment box (233), and a generator equipment box (234); the device box (231) and the device cover... (232) are connected; the motor equipment box (233) and the generator equipment box (234) are set inside the power unit (23). The control device 4 sends corresponding instructions to the humidity execution device 3. When the temperature inside the greenhouse needs to be increased or dissipated, the motor equipment box 233 in the device box 231 is started, and the sunshade curtain 21 is rolled up through the power rod 22. When the temperature inside the greenhouse needs to be kept warm, the generator equipment box 234 in the device box 231 is started, and the energy is recovered and utilized by the power rod 22 through the gravity of the sunshade curtain 21.

[0039] As a specific embodiment of the present invention, refer to Figure 2 and Figure 4The humidity control device (3) includes a water pipe (31) and a nozzle device (32); the water pipe (31) is connected to the nozzle device (32); the water pipe (31) is connected to the main structure (1) of the greenhouse; the water pipe (31) and the nozzle device (32) are installed inside the main structure (1) of the greenhouse, and the nozzle device (32) includes a water receiving pipe (3211), a device cover (3212), a water storage tank (3213) and an atomizing membrane (3214); the water pipe (31) is connected to the water receiving pipe (3211); the water receiving pipe (3211) is connected to the water storage tank (3213) through the device cover (3212); the water storage... The water tank (3213) and the atomizing membrane (3214) are provided. The water inlet pipe (3211) and the spray head device (32) are provided in a total of six, namely the first spray head device (321), the second spray head device (322), the third spray head device (323), the fourth spray head device (324), the fifth spray head device (325) and the sixth spray head device (326). The first spray head device (321), the second spray head device (322), the third spray head device (323), the fourth spray head device (324), the fifth spray head device (325) and the sixth spray head device (326) are all connected to the water pipe (31). The internal structure of the spray head device (32) is the same. The equipment cover (3212), the water storage tank (3213) and the atomizing membrane (3214) are set inside the main structure (1) of the greenhouse. When the control device 4 sends a corresponding instruction to the humidity execution device 3, the water pipe 31 delivers water, which is then atomized and sprayed through the nozzle device 32. When the water pipe delivers water, the water source enters the water storage tank 3213 through the water inlet pipe 3211. The water is then atomized by pressure through the atomizing membrane 3214 and evenly irrigated inside the greenhouse through the six nozzle devices, achieving precise control of the humidity environment inside the greenhouse and green energy saving.

[0040] As a specific embodiment of the present invention, refer to Figure 2 and Figure 6The control device (4) includes a control box (41) and a signal antenna (42). The signal antenna (42) is connected to the control box (41). The control box (41) and the signal antenna (42) are set inside the main structure (1) of the greenhouse. The control device (4) uses PID control. The monitoring data is input into the control box. The control box processes the data and generates instructions through PID control. The instructions are transmitted through the signal antenna, thereby controlling the humidity actuator and the temperature actuator. PID control calculates the control quantity by measuring the error between the actual output and the expected output of the control system, and combining the three parameters of proportional, integral and derivative, and adjusts the system input to make the output as close as possible to the expected value. Taking the temperature control of the edible mushroom greenhouse as an example, the temperature threshold is preset first. When the controller detects the change in the temperature sensor signal (such as the temperature decreases), it controls the heating equipment to increase the greenhouse temperature. When the temperature approaches the threshold, the controller stops the heater. Proportional term (KP): The control quantity is obtained by multiplying the error by the proportional constant. This control quantity is proportional to the error. The KP term ensures a linear relationship between the control quantity and the error; the magnitude of the proportional constant determines the system's response speed and stability. The Integral term (KI) multiplies the error by the integral constant to obtain the control quantity, which is proportional to the sum of the integrals of the error. The KI term eliminates the persistence of the error, preventing the system from being in a steady-state error state. The Derivative term (KD) multiplies the error by the derivative constant to obtain the control quantity, which is proportional to the rate of change of the error. The KD term suppresses instantaneous changes in the error, enhancing system stability and control accuracy. Combining these three terms, the system input can be quickly and accurately adjusted based on the magnitude, persistence, and rate of change of the error, ensuring the output value stabilizes to the desired state. For example, the proportional (P) term calculates the heater power, the integral (I) term eliminates errors caused by diurnal temperature variations, and the derivative (D) term predicts future temperature trends. PID controllers typically adjust the proportional, integral, and derivative constants according to the specific application scenario and system requirements to achieve optimal control performance.

[0041] The foregoing has shown and described 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. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as defined by the appended claims and their equivalents.

Claims

1. An energy-efficient optimized control actuator, comprising a greenhouse main structure (1), a temperature actuator (2), a humidity actuator (3), and a control device (4); characterized in that: The control device (4) is connected to the temperature actuator (2); the control device (4) is connected to the humidity actuator (3); the temperature actuator (2) is connected to the outside of the main structure (1) of the greenhouse; the humidity actuator (3) is connected to the inside of the main structure (1) of the greenhouse; the control device (4) is connected to the inside of the main structure (1) of the greenhouse. The monitoring data and the set data are analyzed by the PID control in the control device (4) to determine whether the temperature actuator (2) or the humidity actuator (3) should be put into operation.

2. The energy efficiency optimization control actuator according to claim 1, characterized in that: The temperature control device (2) includes a shading curtain (21), a power rod (22) and a power device (23); the shading curtain (21) is connected to the power rod (22); the power rod (22) is connected to the power device (23); the shading curtain (21), the power rod (22) and the power device (23) are installed inside the main structure (1) of the greenhouse.

3. The energy efficiency optimization control actuator according to claim 2, characterized in that: The power unit (23) includes a device box (231), a device cover (232), an electric motor equipment box (233), and a generator equipment box (234); the device box (231) is connected to the device cover (232); the electric motor equipment box (233) and the generator equipment box (234) are located inside the power unit (23).

4. The energy efficiency optimization control actuator according to claim 1, characterized in that: The humidity control device (3) includes a water pipe (31) and a nozzle device (32); the water pipe (31) is connected to the nozzle device (32); the water pipe (31) is connected to the main structure (1) of the greenhouse; the water pipe (31) and the nozzle device (32) are installed inside the main structure (1) of the greenhouse.

5. The energy efficiency optimization control actuator according to claim 3, characterized in that: The nozzle device (32) includes a water inlet pipe (3211), a device cover (3212), a water storage tank (3213), and an atomizing membrane (3214); the water transport pipe (31) is connected to the water inlet pipe (3211); the water inlet pipe (3211) is connected to the water storage tank (3213) through the device cover (3212); the water storage tank (3213) is connected to the atomizing membrane (3214); the water inlet pipe (3211), the device cover (3212), the water storage tank (3213), and the atomizing membrane (3214) are installed inside the main structure (1) of the greenhouse.

6. The energy efficiency optimization control actuator according to claim 3, characterized in that: There are six nozzle devices (32), namely the first nozzle device (321), the second nozzle device (322), the third nozzle device (323), the fourth nozzle device (324), the fifth nozzle device (325), and the sixth nozzle device (326). The first nozzle device (321), the second nozzle device (322), the third nozzle device (323), the fourth nozzle device (324), the fifth nozzle device (325), and the sixth nozzle device (326) are all connected to the water pipe (31). The internal structure of the nozzle devices (32) is the same.

7. The energy efficiency optimization control actuator according to claim 1, characterized in that: The control device (4) includes a control box (41) and a signal antenna (42). The signal antenna (42) is connected to the control box (41), and the control box (41) and the signal antenna (42) are installed inside the main structure (1) of the greenhouse.

8. The energy efficiency optimization control actuator according to claim 1, characterized in that: The control device (4) operates on the principle of PID control. It measures the error between the actual output and the desired output of the control system, calculates the control quantity based on the three parameters of proportional, integral and derivative, and adjusts the system input to make the output as close as possible to the desired value.

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