Greenhouse environment self-adaptive regulation and control system and regulation and control method

Abstract

The invention discloses a greenhouse environment self-adaptive regulation and control system and a regulation and control method, which are used for solving the problem that the existing greenhouse environment regulation and control mode only pays attention to the change of a single element and neglects the mutual influence among the elements. Comprising a controller, and a sensor module, a transom window control module, a side window control module, a sunshade net control module, a spraying control module, a fan control module and a water and fertilizer all-in-one machine module which are in signal connection with the controller, the transom window control module is used for controlling opening and closing and opening angles of transom windows, the side window control module is used for controlling opening and closing and opening angles of side windows, the sunshade net control module is used for controlling opening and closing of a sunshade net and a sunshade range, the spraying control module is used for controlling spraying of water in a greenhouse, and the fan control module is used for controlling opening and closing of a fan. The water-fertilizer integrated machine module is used for applying water and fertilizer. According to the invention, adaptive regulation and control can be carried out according to the environment.

Description

Technical Field

[0001] This invention relates to the field of greenhouse environment regulation technology, specifically to a greenhouse environment adaptive regulation system and regulation method. Background Technology

[0002] Greenhouse environmental control is a key technology in facility agriculture, involving the comprehensive management of five elements: temperature, light, water, air, and fertilizer, to optimize crop growth conditions. The parameters of these five elements within a greenhouse change in real time, requiring adjustment according to the crop's growth needs to ensure optimal growth. For example, when sunlight is strong, shading is necessary, but shading also lowers the temperature, meaning adjustments to light parameters affect temperature. When the temperature is high, ventilation is typically used to cool the greenhouse, but this affects gas and moisture parameters. Current greenhouse environmental control technologies often focus on a single element, neglecting the interactions between them. Summary of the Invention

[0003] The purpose of this invention is to provide a greenhouse environment adaptive control system and control method to solve the problem that existing greenhouse environment control methods only focus on the change of a single factor and ignore the mutual influence between various factors.

[0004] The technical solution adopted by this invention to solve its technical problem is: a greenhouse environment adaptive control system, including a controller and sensor modules, a top window control module, a side window control module, a shading net control module, a sprinkler control module, a fan control module, and a water and fertilizer integrated machine module connected to the controller. The sensor modules are arranged at the four corners and center of the greenhouse to periodically detect humidity, temperature, light intensity, carbon dioxide concentration, and water and fertilizer content in the soil. The top window control module controls the opening and closing of the top window and its opening angle. The side window control module controls the opening and closing of the side windows and their opening angle. The shading net control module controls the opening and closing of the shading net and its shading range. The sprinkler control module controls the water spraying within the greenhouse. The fan control module controls the opening and closing of the fan; the fertigation module prepares and applies water and fertilizer; the controller receives and analyzes the detection data sent by the sensor module, and sends action commands to the roof window control module, side window control module, shading net control module, and fan control module based on abnormal temperature data, abnormal humidity data, abnormal carbon dioxide concentration data, abnormal water and fertilizer content data, and abnormal light intensity data; it also sends action commands to the shading net control module.

[0005] Furthermore, the integrated water and fertilizer machine module includes a water and fertilizer machine, pipes, and a drip irrigation tape assembly. The drip irrigation tape assembly is laid on the ground and connected to the water and fertilizer machine through pipes. The drip irrigation tape assembly includes drip irrigation tape and drippers arranged in a cross pattern. The end of the dripper extends into the drip irrigation tape, and the outer side of the dripper has a seepage tube. The end of the dripper and the end of the seepage tube cooperate to clamp the drip irrigation tape. The middle part of the seepage tube is enlarged and has a drip hole in the middle part. The side wall of the dripper has a hollow filter. The first end of the filter is mesh-like and extends into the dripper. The second end of the filter extends out of the dripper and has a water outlet hole.

[0006] Furthermore, the outer walls of both ends of the dripper have annular grooves, and the inner wall of the seepage tube has annular pressure strips. The pressure strips press the drip tape into the grooves to achieve an internal and external cooperation effect.

[0007] Furthermore, the second end of the filter has a boss, the side of which has two parallel surfaces, and the water outlet hole penetrates the boss.

[0008] Furthermore, the side wall of the dripper has a side tube, the inner wall of the side tube has an internal thread, and the outer wall of the filter has an external thread that mates with the internal thread.

[0009] Furthermore, the seepage pipe includes two segments, each segment having an ear plate. The two segments are joined together to form a complete circle, and the ear plates of the two segments are connected by a snap-fit ​​or bolt.

[0010] Furthermore, the segment includes clamping portions at both ends and a water storage portion in the middle, the pressure strip is disposed on the inner wall of the clamping portion, and the outer diameter of the water storage portion is larger than the outer diameter of the clamping portion.

[0011] Furthermore, it also includes a cleaning mechanism, which includes a rotating shaft, blades, and a brush. The rotating shaft passes through the first end of the filter and is rotatably connected to the filter. One end of the rotating shaft extending out of the filter is fixed with a blade, and one end of the rotating shaft extending into the filter is fixed with a brush. The brush contacts the inner wall of the filter. The dripper has a baffle inside, which blocks one side of the rotating shaft along the axis of the dripper.

[0012] This invention also provides a control method for a greenhouse environment adaptive control system, comprising the following steps: S1. The sensor module periodically detects humidity, temperature, light intensity, carbon dioxide concentration, and water and fertilizer content in the soil within the greenhouse. S2. The controller receives the detection data transmitted from the sensor module and compares the detection data with a set threshold. When the detection data exceeds the set threshold, the controller sends an action command to the corresponding control module. S3. When the humidity exceeds a set threshold, the roof window control module and / or the side window control module and / or the fan control module and / or the sprinkler control module activate to adjust the humidity by regulating the ventilation intensity and / or spraying water; when the temperature exceeds a set threshold, the roof window control module and / or the side window control module and / or the shading net control module and / or the fan control module activate to adjust the temperature by regulating the ventilation intensity; when the light intensity exceeds a threshold, the shading net control module activates to adjust the light intensity; when the carbon dioxide gas exceeds a set threshold, the roof window control module and / or the side window control module and / or the fan control module activate to adjust the carbon dioxide gas concentration by regulating the ventilation intensity; when the water and fertilizer content in the soil exceeds a set threshold, the integrated water and fertilizer module activates to apply water and fertilizer; when adjusting any parameter data of humidity, temperature, light intensity, and carbon dioxide gas concentration, if other parameter data exceeds the threshold, the module affecting other parameters is suppressed or shut down.

[0013] The beneficial effects of this invention are: This invention periodically monitors the greenhouse environment by detecting light, humidity, temperature, carbon dioxide concentration, and water and fertilizer content, and then adjusts abnormal parameter data through corresponding modules; furthermore, if other parameter data also become abnormal when adjusting a certain parameter, the system suppresses or shuts down modules affecting other parameters, retaining only the module affecting the specific parameter. That is, it avoids affecting other parameters when adjusting one parameter, achieving adaptive control. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the greenhouse of the present invention; Figure 2 A 3D diagram of the drip irrigation tape assembly; Figure 3 This is the front view of the drip irrigation tape assembly; Figure 4 Left view of the drip irrigation tape assembly; Figure 5 This is a 3D view of the tunnel lining segment; Figure 6 A 3D diagram of the dripper; Figure 7 A 3D view of the filter; Figure 8 The main assembly view of the dripper and the pipe section; Figure 9 Side view assembly drawing of the dripper and filter; Figure 10 A schematic diagram showing the installation of a cleaning mechanism on a filter; Figure 11 A side view of the cleaning mechanism; In the diagram: 1 Greenhouse, 11 Top window control module, 12 Shading net control module, 13 Sprinkler control module, 14 Fan control module, 15 Side window control module, 16 Water and fertilizer integrated machine module, 17 Sensor module, 18 Controller, 2 Drip irrigation tape, 3 Seepage pipe, 31 Clamping part, 311 Pressure strip, 32 Water storage part, 33 Drip hole, 34 Ear plate, 4 Drip head, 41 Groove, 42 Side pipe, 43 Filter, 431 Boss, 432 Water outlet, 433 Filter hole, 44 Rotating shaft, 45 Blade, 46 Baffle, 47 Brush. Detailed Implementation

[0015] like Figure 1 As shown, the greenhouse environment adaptive control system of the present invention includes a controller 18, and a sensor module 17, a top window control module 11, a side window control module 15, a shading net control module 12, a sprinkler control module 13, a fan control module 14, and a water and fertilizer integrated machine module 16, all connected to the controller 18 via signals. The sensor module 17 is arranged at the four corners and the center of the greenhouse 1, and is used to periodically detect the humidity, temperature, light intensity, carbon dioxide concentration, and water and fertilizer content in the soil within the greenhouse 1. The top window control module 11 is used to control the opening and closing of the top window and its opening angle; the side window control module 15 is used to control the opening and closing of the side window and its opening angle; the shading net control module 12 is used to control the opening and closing of the shading net and its shading range; the sprinkler control module 13 is used to control the water spraying within the greenhouse; the fan control module 14 is used to control the opening and closing of the fan; and the water and fertilizer integrated machine module 16 is used for water and fertilizer preparation and application.

[0016] The controller 18 receives and analyzes the detection data sent by the sensor module 17, and sends action commands to the top window control module 11 and / or the side window control module 15 and / or the shading net control module 12 and / or the fan control module 14 based on abnormal temperature data. The top window control module 11, the side window control module 15, and the fan control module 14 regulate the greenhouse temperature by adjusting the ventilation intensity, and the shading net control module 12 regulates the greenhouse temperature by adjusting the shading intensity. When the temperature is higher than the upper limit of the set threshold, the preferred control method is to open the top window control module 11, the side window control module 15, and the fan control module 14. When the temperature is lower than the lower limit of the set threshold, the preferred control method is to open the shading net control module 12 to reduce the shading intensity.

[0017] Based on the abnormal humidity data, the controller 18 sends action commands to the top window control module 11 and / or the side window control module 15 and / or the sprinkler control module 13 and / or the fan control module 14. The top window control module 11, the side window control module 15, and the fan control module 14 adjust the greenhouse humidity by adjusting the ventilation intensity, while the sprinkler control module 13 adjusts the greenhouse humidity by spraying water. When the humidity is higher than the upper limit of the set threshold, the preferred control method is to open the top window control module 11, the side window control module 15, and the fan control module 14; when the humidity is lower than the lower limit of the set threshold, the preferred control method is to open the sprinkler control module 13.

[0018] Based on abnormal carbon dioxide gas concentration data, action commands are sent to the roof window control module 11 and / or the side window control module 15 and / or the fan control module 14. The roof window control module 11, the side window control module 15 and the fan control module 14 adjust the carbon dioxide gas concentration by adjusting the ventilation intensity.

[0019] Based on the abnormal water and fertilizer content data, the water and fertilizer integrated machine module 16 is sent an action command, and the water and fertilizer integrated machine module 16 provides water and fertilizer to the crops through water and fertilizer preparation and application.

[0020] Based on abnormal light data, the shading net control module 12 sends action commands, and the shading net control module 12 adjusts the light by adjusting the shading intensity and range.

[0021] Adjusting one parameter should not affect other parameters. For example, when adjusting the temperature, the top window control module 11, side window control module 15, and fan control module 14 can be activated. However, this method adjusts the temperature by regulating the ventilation strength of the greenhouse, which will affect the greenhouse humidity and carbon dioxide concentration. Therefore, when adjusting the temperature by ventilation, humidity and carbon dioxide concentration data should be monitored in real time to prevent abnormalities in humidity and carbon dioxide concentration after the temperature is adjusted. Therefore, when controlling one parameter, changes in other parameters should be monitored in real time. When other parameter data is about to become abnormal, modules affecting other parameters should be suppressed or turned off to prevent other parameters from becoming abnormal. Therefore, the innovation of this invention is that by periodically monitoring greenhouse environmental data, when a certain parameter becomes abnormal, the corresponding module is adjusted to regulate the environment, while monitoring changes in other parameters and modifying the control method of the certain parameter in a timely manner to avoid mutual interference between different parameters during parameter adjustment.

[0022] The second innovation of this invention is the design of an integrated water and fertilizer machine module 16. The integrated water and fertilizer machine module 16 includes a water and fertilizer machine, pipes, and a drip irrigation tape assembly. The drip irrigation tape assembly is laid on the ground and connected to the water and fertilizer machine via pipes. Figure 2As shown, the drip irrigation tape assembly includes drip irrigation tape 2 and drippers 4 arranged in a cross configuration, with the end of the dripper 4 extending into the drip irrigation tape 2. That is, the dripper 4 is located between the two drip irrigation tapes 2, with its front end extending into the drip irrigation tape 2 on the front side and its rear end extending into the drip irrigation tape 2 on the rear side. The outer side of the dripper 4 has an infiltration tube 3. The end of the dripper 4 and the end of the infiltration tube 3 work together to clamp the drip irrigation tape 2, firmly connecting the drip irrigation tape 2 and the dripper 4 together, and achieving a seal at the connection between the drip irrigation tape 2 and the dripper 4. The middle of the infiltration tube 3 is enlarged, as shown... Figure 5 As shown, the seepage pipe 3 has a drip hole 33 in the middle. The middle of the seepage pipe 3 and the dripper 4 form a storage cavity for temporary storage of water and fertilizer, as shown. Figure 8 , Figure 9 As shown, the side wall of the dripper 4 has a hollow filter 43. The first end of the filter 43 is mesh-like and extends into the dripper 4. The first end of the filter 43 has filter holes 433. The second end of the filter 43 extends out of the dripper 4, and as shown... Figure 7 As shown, the second end of the filter 43 has an outlet hole 432. Water and fertilizer flow within the drip irrigation tape 2. After flowing into the dripper 4, the water and fertilizer pass through the first end of the filter 43 and enter the inner side of the filter 43, then flow out through the outlet hole 432 into the storage chamber. The storage chamber buffers the water and fertilizer, allowing them to flow out slowly through the drip holes 33. The filter 43 on the dripper 4 filters the water and fertilizer, preventing clogging of the outlet hole 432 and the drip holes 33. The infiltration pipe 3 protects the dripper 4, preventing surface soil from clogging the drip holes 33. The infiltration pipe 3 also buffers the water and fertilizer, ensuring balanced water and fertilizer pressure within the storage chamber, thus achieving pressure compensation.

[0023] To ensure that the dripper 4 and the seepage pipe 3 work together to clamp the drip tape 2, such as Figure 6 As shown, the outer walls at both ends of the dropper 4 have annular grooves 41, such as... Figure 4 As shown, the inner wall of the drip pipe 3 has a circular pressure strip 311, which presses the drip tape 2 into the groove 41 to achieve the purpose of clamping the drip tape 2 with the inside and outside. In this way, the drip tape 2 presents a wavy shape at the groove 41, which increases the friction and sealing between the drip tape 2 and the dripper 4.

[0024] To facilitate the assembly of filter 43, such as Figure 7 As shown, the second end of the filter 43 has a boss 431, and the side of the boss 431 has two parallel surfaces to facilitate disassembly of the filter 43 by means of a wrench. The water outlet 432 passes through the boss 431.

[0025] To further facilitate the assembly of filter 43, such as Figure 6 As shown, the side wall of the dripper 4 has a side tube 42, the inner wall of the side tube 42 has an internal thread, and the outer wall of the filter 43 has an external thread that mates with the internal thread.

[0026] To facilitate the assembly of dripper 4 and seepage tube 3, such as Figure 2 As shown, the seepage tube 3 comprises two segments, each with an ear plate 34, as... Figure 4 As shown, the two pipe segments are joined together to form a complete circle, and the ear plates 34 of the two pipe segments are connected by snap-fit ​​or bolts. The pipe segment includes clamping parts 31 at both ends and a water storage part 32 in the middle. Pressure strips 311 are set on the inner wall of the clamping parts 31, and the outer diameter of the water storage part 32 is larger than the outer diameter of the clamping parts 31. Due to the large outer diameter of the water storage part 32, the water flowing out of the water outlet 432 on the filter 43 falls into the water storage part 32. The air pressure between the water storage part 32 and the dripper 4 is the same as the atmospheric pressure, and thus the pressure in each seepage pipe 3 is the same, achieving pressure compensation through the seepage pipe 3.

[0027] After prolonged use, sand and impurities will adhere to filter 43, thus affecting the entry of water and fertilizer into filter 43. Figure 10 As shown, a cleaning mechanism is provided inside the dripper 4. The cleaning mechanism includes a rotating shaft 44, blades 45, and a brush 47. The rotating shaft 44 passes through the first end of the filter 43 and is rotatably connected to the filter 43. One end of the rotating shaft 44 extending out of the filter 43 is fixed with blades 45, and the other end of the rotating shaft 44 extending into the filter 43 is fixed with brush 47. Brush 47 is arranged parallel to the rotating shaft 44 and there is a certain distance between them. Brush 47 contacts the inner wall of the filter 43. The dripper 4 has a baffle 46 inside, which blocks one side of the rotating shaft 44 along the axis of the dripper 4. In this way, when water and fertilizer flow in the dripper 4, due to the obstruction of the baffle 46, the water and fertilizer will not impact one side of the rotating shaft 44, but will directly impact the other side of the rotating shaft 44. Thus, blades 45 drive the rotating shaft 44 to rotate, and the rotating shaft 44 drives the brush 47 to rotate. The rotating brush 47 rubs the filter 43 from the inside, thereby cleaning the filter holes 433 on the filter 43.

[0028] This invention also provides a control method for a greenhouse environment adaptive control system, comprising the following steps: S1. The sensor module 17 periodically detects humidity, temperature, light, carbon dioxide concentration and water and fertilizer content in the soil inside the greenhouse; S2. The controller 18 receives the detection data transmitted from the sensor module 17 and compares the detection data with the set threshold. When the detection data exceeds the set threshold, the controller 18 sends an action command to the corresponding control module. S3. When humidity exceeds the set threshold, the roof window control module 11 and / or the side window control module 15 and / or the fan control module 14 and / or the sprinkler control module 13 activate to adjust humidity by regulating ventilation intensity and / or spraying water; when temperature exceeds the set threshold, the roof window control module 11 and / or the side window control module 15 and / or the shading net control module 12 and / or the fan control module 14 activate to adjust temperature by regulating ventilation intensity; when sunlight exceeds the threshold, the shading net control module 12 activates to adjust sunlight by regulating shading intensity; when carbon dioxide gas exceeds the set threshold, the roof window control module 11 and / or the side window control module 15 and / or the fan control module 14 activate to adjust carbon dioxide gas concentration by regulating ventilation intensity; when the water and fertilizer content in the soil exceeds the set threshold, the water and fertilizer integrated module 16 activates to apply water and fertilizer; when adjusting any parameter data of humidity, temperature, sunlight, and carbon dioxide gas concentration, if other parameter data exceeds the threshold, the module affecting other parameters is suppressed or shut down.

[0029] This invention periodically monitors the greenhouse environment by detecting light, humidity, temperature, carbon dioxide concentration, and water and fertilizer content. It then adjusts abnormal parameter data through corresponding modules. Furthermore, if other parameters also become abnormal while adjusting a particular parameter, the system suppresses or shuts down modules affecting those parameters, retaining only the module affecting the specific parameter being adjusted. In other words, it avoids affecting other parameters when adjusting one parameter, achieving adaptive control.

Claims

1. A greenhouse environment adaptive control system, characterized in that, The system includes a controller and sensor modules connected to the controller, a top window control module, a side window control module, a shading net control module, a sprinkler control module, a fan control module, and a water and fertilizer integrated machine module. The sensor modules are located at the four corners and center of the greenhouse to periodically monitor humidity, temperature, light intensity, carbon dioxide concentration, and soil water and fertilizer content. The top window control module controls the opening and closing of the top window and its opening angle. The side window control module controls the opening and closing of the side windows and their opening angle. The shading net control module controls the opening and closing of the shading net and its shading range. The sprinkler control module controls the water spraying within the greenhouse. The fan control module controls the operation of the fans. The integrated water and fertilizer module is used for water and fertilizer preparation and application. The controller is used to receive and analyze the detection data sent by the sensor module, and send action commands to the top window control module, side window control module, shading net control module and fan control module according to abnormal temperature data, abnormal humidity data, abnormal carbon dioxide gas concentration data, abnormal water and fertilizer content data, and abnormal light intensity data.

2. The greenhouse environment adaptive control system according to claim 1, characterized in that, The integrated water and fertilizer machine module includes a water and fertilizer machine, pipes, and a drip irrigation tape assembly. The drip irrigation tape assembly is laid on the ground and connected to the water and fertilizer machine through pipes. The drip irrigation tape assembly includes drip irrigation tape and drippers arranged in a cross pattern. The end of the dripper extends into the drip irrigation tape, and the outer side of the dripper has a seepage tube. The end of the dripper and the end of the seepage tube cooperate to clamp the drip irrigation tape. The middle of the seepage tube is enlarged and has a drip hole in the middle. The side wall of the dripper has a hollow filter. The first end of the filter is mesh-like and extends into the dripper. The second end of the filter extends out of the dripper and has a water outlet hole.

3. The greenhouse environment adaptive control system according to claim 2, characterized in that, The outer walls of both ends of the dripper have annular grooves, and the inner wall of the drip tube has annular pressure strips. The pressure strips press the drip tape into the grooves to achieve an internal and external cooperation.

4. The greenhouse environment adaptive control system according to claim 3, characterized in that, The second end of the filter has a boss, and the side of the boss has two parallel surfaces. The water outlet hole passes through the boss.

5. The greenhouse environment adaptive control system according to claim 4, characterized in that, The dropper has a side tube on its side wall, the inner wall of the side tube has an internal thread, and the outer wall of the filter has an external thread that mates with the internal thread.

6. The greenhouse environment adaptive control system according to claim 5, characterized in that, The seepage pipe includes two segments, each with a lug plate. The two segments are joined together to form a complete circle, and the lug plates of the two segments are connected by a snap-fit ​​or bolt.

7. The greenhouse environment adaptive control system according to claim 6, characterized in that, The segment includes clamping portions at both ends and a water storage portion in the middle. The pressure strip is disposed on the inner wall of the clamping portion, and the outer diameter of the water storage portion is larger than the outer diameter of the clamping portion.

8. The greenhouse environment adaptive control system according to claim 7, characterized in that, It also includes a cleaning mechanism, which includes a rotating shaft, blades, and a brush. The rotating shaft passes through the first end of the filter and is rotatably connected to the filter. One end of the rotating shaft extending out of the filter is fixed with a blade, and one end of the rotating shaft extending into the filter is fixed with a brush. The brush contacts the inner wall of the filter. The dripper has a baffle inside, which blocks one side of the rotating shaft along the axis of the dripper.

9. The control method of the greenhouse environment adaptive control system according to claim 8, characterized in that, Includes the following steps: S1. The sensor module periodically detects humidity, temperature, light intensity, carbon dioxide concentration, and water and fertilizer content in the soil within the greenhouse. S2. The controller receives the detection data transmitted from the sensor module and compares the detection data with a set threshold. When the detection data exceeds the set threshold, the controller sends an action command to the corresponding control module. S3. When the humidity exceeds a set threshold, the roof window control module and / or the side window control module and / or the fan control module and / or the sprinkler control module activate to adjust the humidity by regulating the ventilation intensity and / or spraying water; when the temperature exceeds a set threshold, the roof window control module and / or the side window control module and / or the shading net control module and / or the fan control module activate to adjust the temperature by regulating the ventilation intensity; when the light intensity exceeds a threshold, the shading net control module activates to adjust the light intensity; when the carbon dioxide gas exceeds a set threshold, the roof window control module and / or the side window control module and / or the fan control module activate to adjust the carbon dioxide gas concentration by regulating the ventilation intensity; when the water and fertilizer content in the soil exceeds a set threshold, the integrated water and fertilizer module activates to apply water and fertilizer; when adjusting any parameter data of humidity, temperature, light intensity, and carbon dioxide gas concentration, if other parameter data exceeds the threshold, the module affecting other parameters is suppressed or shut down.

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