An ecological monitoring humidity automatic irrigation device and an irrigation method thereof

Abstract

The application discloses an ecological monitoring humidity automatic irrigation device and an irrigation method thereof, which comprises an air humidity monitoring system, an irrigation system and a telescopic fixing mechanism. The air humidity monitoring system adopts a special pine cone to monitor air humidity. An aluminum foil sheet is attached to the scale of the special pine cone. The aluminum foil sheet converts the humidity signal into a displacement signal. An eddy current displacement sensor is used to identify the signal. The eddy current displacement sensor outputs the signal to a remote control device to control irrigation. The irrigation system is a spraying nozzle matched with a wireless control remote on-off valve for irrigation. The telescopic fixing mechanism is used to adjust the height of the device. The application realizes ecological automatic monitoring of air humidity and irrigation by identifying the horizontal displacement of the pine cone scale. Meanwhile, the irrigation degree is fed back by the monitoring system, and the irrigation is circular, which can reduce the maintenance and replacement cost of traditional sensors and adjust the irrigation height according to the growth and development of plants.

Description

Technical Field

[0001] This invention provides an automated irrigation device and irrigation method for monitoring ecological humidity, relating to the fields of ecological humidity monitoring and automated irrigation technology. Background Technology

[0002] The sources of water required by plants vary. While soil moisture is generally considered to have a decisive impact on plant growth, air humidity also significantly affects plant growth and development. Excessive air humidity hinders flowering and affects fruiting; insufficient air humidity shortens the flowering period and causes flower color to fade. Furthermore, some plants do not require soil contact, such as Dendrobium officinale, which only needs to be tied to the trunk and watered regularly. Different plants also have different air humidity requirements; ferns require high air humidity, while succulents prefer a dry environment.

[0003] In recent years, with the development of sensing technology, big data, cloud computing, and the Internet of Things, combining these technologies with irrigation systems enables precise management of irrigation for different plants, making automatic irrigation systems more intelligent and accurate. Automatic irrigation systems can achieve timed and quantitative irrigation, automatically adjusting according to crop water requirements and soil moisture, effectively improving water use efficiency, reducing labor costs, avoiding water waste, and ensuring the water needs of crops are met.

[0004] However, existing automated irrigation technologies rely heavily on sensors for humidity monitoring. This results in overly complex and expensive equipment, inconvenient maintenance, and difficulty in replacing parts. Furthermore, it makes it impossible to adjust the monitoring height according to plant growth.

[0005] For example, Chinese patent application number CN202310583825 discloses an automatic irrigation system and method for urban green belts. It uses a detector to send a detection signal to a controller, which then processes the signal and controls the watering device to perform irrigation. This patent uses commercially available humidity sensors to detect humidity and then sends the signal to the controller to complete the irrigation, ignoring the natural "air humidity sensor" found in nature. Summary of the Invention

[0006] To address the aforementioned issues and improve upon traditional humidity sensor modules, this invention provides an automated irrigation device and method for ecological humidity monitoring. It adds an air humidity ecological monitoring module, utilizing a high-precision sensor to enhance ecological monitoring accuracy. The device converts the humidity signal detected by the pine cones into a recognizable displacement signal, while simultaneously monitoring the opening of the pine cone scales. This allows for customized irrigation based on the different air humidity requirements of various plants, and also monitors the humidity at the same level as the plants, achieving automatic air humidity monitoring and controlling irrigation time.

[0007] Technical solution: To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] An automated irrigation device for monitoring soil moisture includes a layout plate and a remote control device. An air humidity monitoring system is installed and fixed on the layout plate. An irrigation system is suspended on the top of the air humidity monitoring system. A water tank is connected to the top of the irrigation system. The water tank forms a telescopic system with the soil moisture monitoring device through a telescopic fixing mechanism.

[0009] The air humidity monitoring system includes a specially designed pine cone, which is fixed in the middle of the arrangement plate. The arrangement plate is equipped with an eddy current displacement sensor and a positioning ring around its perimeter.

[0010] The irrigation system includes a water supply pipe, each outlet end of which is connected to an extension pipe. The outlet end of the extension pipe is equipped with a wirelessly controlled remote switch valve, and the other end of the wirelessly controlled remote switch valve is connected to an atomizing nozzle. There are multiple wirelessly controlled remote switch valves and atomizing nozzles.

[0011] The soil moisture monitoring device includes a soil moisture meter and a support cylinder. The inner wall of the support cylinder is provided with three rows of fixing buckles corresponding to the fixing grids. The support cylinder includes an upper inner cavity, a baffle plate, and a lower inner cavity.

[0012] Furthermore, aluminum foil is attached to the scales in the middle of the specially made pine cone. The aluminum foil corresponds to the position of the probe end of the eddy current displacement sensor. The eddy current displacement sensor is fixed on the positioning ring. A fixing plate is provided at the front end of the positioning ring. The fixing plate and the positioning ring form an adjustment device through a limiting spring. The limiting spring is moved by the adjusting screw on the outside of the positioning ring.

[0013] Furthermore, the water inlet of the water pipe is connected to the outlet of the top water tank, and the water outlet is split into three directions, including above the specially made pine cone, the plant branches and leaves, and the plant roots. The wirelessly controlled remote valve automatically opens and closes by giving a signal through the remote control device.

[0014] Furthermore, the telescopic fixing mechanism consists of three sets, including telescopic outer rods and telescopic inner rods. The telescopic outer rods are welded and fixed to the inner wall of the support cylinder. Each set of telescopic outer rods has a telescopic inner rod fitted inside its cavity. The telescopic inner rods pass through the air humidity monitoring system and the irrigation system, and are fixed to the bottom plate of the water tank at the top. Each set of telescopic inner rods has a fixing plate on its inner side. Each fixing plate has five fixing grids, and the center-to-center distance between the fixing grids is 20cm.

[0015] Furthermore, the soil moisture monitor is located on the bottom plate of the support cylinder. The signal end of the soil moisture monitor is inserted downward into the soil, and the output end is connected to the remote control device. The lower inner cavity includes a monitor fixing plate, a limiting spring, and a moving screw. The soil moisture monitor is fixed below the monitor fixing plate, and the limiting spring and the moving screw are connected above to form a moving device. The moving screw is fixed to the barrier plate, and the upper cavity houses the telescopic fixing mechanism.

[0016] Furthermore, both the telescopic fixing mechanism and the support cylinder are made of stainless steel, and the arrangement plate is made of plexiglass.

[0017] Furthermore, the output terminal of the eddy current displacement sensor and the soil moisture monitor is connected to a remote control device.

[0018] Furthermore, the air humidity monitoring system is located at the same level as the plant.

[0019] Furthermore, the aluminum foil sheets are arranged at 180° intervals around the central scales of the specially made pine cone.

[0020] Furthermore, the irrigation method of the aforementioned automated irrigation device for monitoring humidity is as follows:

[0021] The first step is to determine the environmental requirements of the irrigated plants for air and soil humidity, and to determine the linear relationship between the horizontal displacement signal of the specially made pine cone scales and air humidity and irrigation time.

[0022] Step 2: Adjust the air humidity monitoring system to the same level as the plant, adjust the extension water pipe to the designated irrigation position, and adjust the distance between the eddy current displacement sensor probe and the aluminum foil using the positioning ring. Input the linear relationship between the opening and closing time of the specially designed pine cone scales and air humidity, as well as the plant's humidity requirements, into the remote control device. If the irrigated plant requires specific soil moisture, adjust the moving screw to extend the soil moisture monitor and insert it into the soil.

[0023] Step 3: When the air humidity decreases, the horizontal displacement of the specially made pine cone scales reaches the threshold. The displacement signal of the aluminum foil is identified by the eddy current displacement sensor probe and output to the remote control device. The remote control device simultaneously opens several wireless remote control valves suspended above the specially made pine cone and the plant to irrigate the target. If the soil moisture monitor detects that the soil moisture is too low, the remote control device opens the wireless remote control valves suspended at the roots of the plant to replenish the soil with water.

[0024] Step 4: After watering is completed, the scales of the specially made pine cone close. The eddy current displacement sensor probe identifies the reset signal of the aluminum foil paper and feeds it back to the remote control device, which closes several wireless remote control valves suspended above the specially made pine cone and the plant. If the soil moisture monitor detects that the soil moisture has reached the required level, the remote control device closes the wireless remote control valves suspended at the roots of the plant.

[0025] The beneficial effects of this invention are:

[0026] 1. The irrigation device of the present invention uses a pine cone as an air humidity monitor, which automatically opens and closes the scales according to changes in air humidity. When the humidity drops to a certain level, the eddy current displacement sensor automatically identifies the horizontal displacement signal of the scales and controls the irrigation system to perform irrigation. The pine cone can also be used as a real-time monitoring device or timer. When the humidity meets the requirements or reaches the predetermined irrigation time, it automatically identifies the closed state of the scales and stops irrigation. Furthermore, eddy current displacement sensors are provided on both sides of the central scale, and the horizontal displacement signals of the pine cone scales are different, which can meet the different air humidity requirements of different plants. At the same time, a soil moisture monitor is provided to meet the soil moisture requirements of plants, which can realize personalized irrigation.

[0027] 2. This invention uses an eddy current displacement sensor to measure the horizontal displacement of scales. This sensor is a non-contact sensor that can perform continuous measurements without affecting the natural opening and closing of the scales, thus reducing measurement errors. It is also easy to install, has long equipment durability, and the probe is waterproof, making it well adaptable to the environment. Attached Figure Description

[0028] Appendix Figure 1 This is a schematic diagram of the structure of an automated irrigation device for monitoring humidity according to the present invention;

[0029] Appendix Figure 2 For the present invention Figure 1 Cross-sectional views of the upper and lower inner cavities of the middle structure 6;

[0030] Appendix Figure 3 For the present invention Figure 1 Left view of structure 2;

[0031] Appendix Figure 4 This is a linear relationship diagram between the horizontal displacement of a specially made pine cone scale and humidification time according to the present invention;

[0032] Appendix Figure 5 This is a system logic diagram for automatically monitoring humidity and irrigation according to the present invention.

[0033] In the diagram: 1-Layout plate; 2-Air humidity monitoring system; 3-Irrigation system; 4-Water tank; 5-Telescopic fixing mechanism; 6-Soil moisture monitoring device; 7-Remote control equipment; 21-Special pine cone; 22-Aluminum foil sheet; 23-Eddy current displacement sensor; 24-Positioning ring; 241-Fixing plate; 242-Limit spring; 243-Adjusting screw; 31-Water pipe; 32-Extension water pipe; 33-Wireless remote control valve; 34-Atomizing nozzle; 51-Telescopic outer rod; 52-Telescopic inner rod; 53-Fixing plate; 54-Fixing grid; 61-Soil moisture meter; 62-Support cylinder; 63-Fixing buckle; 64-Upper inner cavity; 65-Blocking plate; 66-Lower inner cavity; 661-Monitor fixing plate; 662-Limit spring; 663-Moving screw. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The ecological monitoring humidity automated irrigation device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: As shown in the attached document Figures 1-5 As shown, an automated irrigation device for monitoring humidity includes a mounting plate 1 and a remote control device 7. An air humidity monitoring system 2 is fixedly mounted on the mounting plate 1, and an irrigation system 3 is suspended from the top of the air humidity monitoring system 2. A water tank 4 is connected to the top of the irrigation system 3. The water tank 4 forms a telescopic system with a soil moisture monitoring device 6 via a telescopic fixing mechanism 5. The mounting plate is made of specially made plexiglass, with supports on all four sides for fixing the air humidity monitoring system. A gap is left between the positioning ring and the mounting plate to facilitate water droplet outflow. The air humidity monitoring system can be used as a real-time monitoring device or a timer, working in conjunction with the soil moisture monitoring device to monitor humidity. When changes in air humidity and soil moisture are detected, a signal can be output to the remote control device to control the irrigation system to perform irrigation. The telescopic fixing mechanism can adjust the height of the air humidity monitoring system and also serve as a storage device, adjusting the height according to the plant growth and development process, and saving space when the device is not in use.

[0036] The air humidity monitoring system 2 includes a specially designed pine cone 21, which is fixed in the middle of a mounting plate 1. Eddy current sensors 23 and positioning rings 24 are arranged around the mounting plate 1. Aluminum foil 22 is attached to the scales in the middle of the specially designed pine cone 21, and the aluminum foil 22 corresponds to the probe end of the eddy current displacement sensor 23. The eddy current displacement sensor 23 is fixed to the positioning ring 24. Using the specially designed pine cone with the aluminum foil attached as a humidity monitoring module, the pine cone scales can open and close according to changes in air humidity. When the air humidity decreases, the scales open, and the eddy current displacement sensor detects that the displacement signal of the aluminum foil exceeds a threshold, outputting an alert to a remote control device to control irrigation. When irrigation is complete, the eddy current displacement sensor further detects that the aluminum foil has entered the stop irrigation zone, again outputting an alert to the remote control device to stop irrigation.

[0037] The positioning ring 24 has a fixing plate 241 at its front end. The fixing plate 241 forms an adjustment device with the positioning ring 24 via a limiting spring 242. The limiting spring 242 moves via an adjusting screw 243 on the outside of the positioning ring 24. Rotating the adjusting screw deforms the limiting spring, causing the fixing plate to move, thereby moving the eddy current displacement sensor probe end fixed on the fixing plate and adjusting the distance between the eddy current displacement sensor probe end and the aluminum foil sheet.

[0038] The irrigation system 3 includes a water supply pipe 31, with extension pipes 32 at each outlet end of the water supply pipe 31. Each extension pipe 32 has a wirelessly controlled remote-controlled valve 33 at its outlet end, and the other end of each valve 33 is connected to a misting nozzle 34. Multiple wirelessly controlled remote-controlled valves 33 and misting nozzles 34 are used. The extension pipes allow for changing the irrigation angle, ensuring even watering of all parts of the plant. The multiple wirelessly controlled remote-controlled valves and misting nozzles allow for watering of multiple parts. The valves are opened wirelessly via signals received from the remote control device, controlling the water flow to the misting nozzles for atomized water irrigation, thus increasing air humidity.

[0039] The water inlet of the water pipe 31 is connected to the outlet of the top water tank 4, and the water outlet is split into three directions: above the specially made pine cone 21, on the plant branches and leaves, and on the plant roots. The wirelessly controlled remote valve 33 automatically opens and closes via a signal from a remote control device. Simultaneously, the plant branches and leaves, plant roots, and the specially made pine cone are irrigated. Changes in the scales of the specially made pine cone are monitored to determine the degree of irrigation, precisely control the irrigation time, and allow for controlled irrigation even for plants with specific soil moisture requirements.

[0040] The soil moisture monitoring device 6 includes a soil moisture meter 61 and a support cylinder 62. The outer wall of the support cylinder 62 has three rows of fixing buckles 63 corresponding to fixing grids 54. The support cylinder 62 includes an upper inner cavity 64, a baffle plate 65, and a lower inner cavity 66. The support cylinder is the main body and load-bearing structure of the entire device. It is inserted downwards into the soil fixing device, and its entire structure can fix a telescopic fixing mechanism. It is also connected to an eddy current displacement sensor and the output terminal of the soil moisture meter to output a signal.

[0041] The soil moisture monitor 61 is located on the bottom plate of the support cylinder 62. The signal end of the soil moisture monitor 61 is inserted downward into the soil, and the output end is connected to the remote control device 7. The lower inner cavity 66 includes a monitor fixing plate 661, a limiting spring 662, and a moving screw 663. The soil moisture monitor 61 is fixed below the monitor fixing plate 661, and the limiting spring 662 and the moving screw 663 are connected above to form a moving device. The moving screw 663 is fixed to the barrier plate 65. The upper cavity 64 houses the telescopic fixing mechanism 5. The lower inner cavity of the support cylinder is used to arrange the soil moisture monitor. For plants that require soil moisture, the soil moisture monitor can be activated by adjusting the moving screw, which moves the monitor fixing plate. The upper cavity can house the device and adjust its height through the telescopic fixing mechanism.

[0042] The telescopic fixing mechanism 5 consists of three sets, including a telescopic outer rod 51 and a telescopic inner rod 52. The telescopic outer rod 51 is welded and fixed to the inner wall of the support cylinder 62. Each set of telescopic outer rods 51 has a telescopic inner rod 52 fitted inside its cavity. The telescopic inner rod 52 passes through the air humidity monitoring system 2 and the irrigation system 3, and its top is fixed to the bottom plate of the water tank 4. Each set of telescopic inner rods 52 has a fixing plate 53 on its inner side. Each fixing plate 53 has five fixing grids 54, and the center-to-center distance between the fixing grids 54 is 20cm. For different heights of different plant branches and leaves, and for changes in height during plant growth and development, the position of the telescopic inner rod is adjusted to a predetermined height, forming a vertical misalignment with the telescopic outer rod. The fixing grids are then secured to fix the position of the two rods, thereby fixing the height and meeting the air humidity monitoring requirements at different plant branch and leaf heights.

[0043] The irrigation method of the present invention is as follows: First, determine the environmental requirements of the irrigated plants for air humidity and soil humidity, and determine the linear relationship between the horizontal displacement of the specially made pine cone scales and air humidity and irrigation time.

[0044] Step 2: Adjust the air humidity monitoring system to the same level as the plant, adjust the extension water pipe to the designated irrigation position, and adjust the distance between the eddy current displacement sensor probe and the aluminum foil using the positioning ring. Input the linear relationship between the opening and closing time of the specially designed pine cone scales and air humidity, as well as the plant's humidity requirements, into the remote control device. If the irrigated plant requires specific soil moisture, adjust the moving screw to extend the soil moisture monitor and insert it into the soil.

[0045] Step 3: When the air humidity decreases, the horizontal displacement of the specially made pine cone scales reaches the threshold. The displacement signal of the aluminum foil is identified by the eddy current displacement sensor probe and output to the remote control device. The remote control device simultaneously opens several wireless remote control valves suspended above the specially made pine cone and the plant to irrigate the target. If the soil moisture monitor detects that the soil moisture is too low, the remote control device opens the wireless remote control valves suspended at the roots of the plant to replenish the soil with water.

[0046] Step 4: After watering is completed, the scales of the specially made pine cone close. The eddy current displacement sensor probe identifies the reset signal of the aluminum foil paper and feeds it back to the remote control device, which closes several wireless remote control valves suspended above the specially made pine cone and the plant. If the soil moisture monitor detects that the soil moisture has reached the required level, the remote control device closes the wireless remote control valves suspended at the roots of the plant.

[0047] Example 2: As Figure 1 As shown, an automated irrigation device for monitoring humidity is described in this embodiment. This embodiment is the same as that in Embodiment 1, except that the following specific application is used to introduce the present invention.

[0048] As a precious Chinese medicinal herb, Dendrobium officinale has unique requirements for its growing environment. It is an aerial root plant, and its roots need to be well-drained and aerated. It cannot be planted in soil and mostly grows on cliffs or trees at high altitudes. Artificial cultivation often only requires tying the seedlings to the tree. To determine whether it needs watering, it is necessary to repeatedly check the dryness and wetness of its roots.

[0049] 1. Determine the binding height of Dendrobium officinale seedlings, adjust the height of the device so that the special pine cone is aligned with Dendrobium officinale, lead out the sensor wire to connect the remote control device, and adjust the extension water pipe to the root of Dendrobium officinale;

[0050] 2. Fix the device and adjust the position of the eddy current displacement sensor on the positioning ring;

[0051] 3. The eddy current displacement sensor determines the humidity of the air by monitoring the horizontal displacement of the pine cone scales. When the specially designed pine cone scales open, it indicates that the air is dry. The eddy current displacement sensor probe identifies the displacement signal of the aluminum foil paper and outputs it to the remote control device, which opens several wirelessly controlled remote valves suspended above the specially designed pine cones and Dendrobium officinale to irrigate the target.

[0052] 4. After watering is completed, the air humidity rises, and the scales of the specially made pine cone close, indicating that the air is humid. The eddy current displacement sensor probe detects the reset signal of the aluminum foil paper and sends it back to the remote control device, which closes several wirelessly controlled remote switch valves suspended above the specially made pine cone and the plant, stopping the watering.

[0053] 5. Repeat the above steps when humidity changes.

[0054] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An automated irrigation device for monitoring humidity, comprising a layout plate (1) and a remote control device (7), characterized in that, An air humidity monitoring system (2) is installed and fixed on the arrangement plate (1). An irrigation system (3) is suspended on the top of the air humidity monitoring system (2). A water tank (4) is connected to the top of the irrigation system (3). The water tank (4) forms an extension system with the soil moisture monitoring device (6) through an extension fixing mechanism (5). The air humidity monitoring system (2) includes a special pine cone (21), which is fixed in the middle of the arrangement plate (1). The arrangement plate (1) is provided with an eddy current displacement sensor (23) and a positioning ring (24) around its perimeter. The irrigation system (3) includes a water supply pipe (31), each water outlet end of the water supply pipe (31) is connected to an extension water pipe (32), the water outlet end of the extension water pipe (32) is provided with a wireless control remote switch valve (33), the other end of the wireless control remote switch valve (33) is connected to an atomizing nozzle (34), and there are multiple wireless control remote switch valves (33) and atomizing nozzles (34); The soil moisture monitoring device (6) includes a soil moisture meter (61) and a support cylinder (62). The inner wall of the support cylinder (62) is provided with three rows of fixing buckles (63) corresponding to the fixing grid (54). The inside of the support cylinder (62) includes an upper inner cavity (64), a baffle plate (65) and a lower inner cavity (66). Aluminum foil (22) is attached to the scales in the middle of the special pine cone (21). The aluminum foil (22) corresponds to the probe end of the eddy current displacement sensor (23). The eddy current displacement sensor (23) is fixed on the positioning ring (24). The front end of the positioning ring (24) is provided with a fixing plate I (241). The fixing plate I (241) and the positioning ring (24) form an adjustment device through the limiting spring I (242). The limiting spring I (242) is moved by the adjusting screw (243) on the outside of the positioning ring (24). The output of the eddy current displacement sensor (23) and the soil moisture monitor (61) are connected to a remote control device (7).

2. The automated irrigation device for monitoring humidity according to claim 1, characterized in that: The water inlet of the water pipe (31) is connected to the outlet of the top water tank (4), and the water outlet is split into three directions, including above the special pine cone (21), the plant branches and leaves and the plant roots. The wireless control remote valve (33) automatically switches the valve by giving a signal through the remote control device (7).

3. The automated irrigation device for monitoring humidity according to claim 1, characterized in that: The telescopic fixing mechanism (5) consists of 3 sets, including telescopic outer rod (51) and telescopic inner rod (52). The telescopic outer rod (51) is welded and fixed to the inner wall of the support cylinder (62). Each set of telescopic outer rod (51) has a telescopic inner rod (52) sleeved in its inner cavity. The telescopic inner rod (52) passes through the air humidity monitoring system (2) and the irrigation system (3). Its top is fixed to the bottom plate of the water tank (4). Each set of telescopic inner rod (52) has a fixing plate II (53) on its inner side. Each fixing plate II (53) has 5 fixing grids (54). The center-to-center distance of the fixing grids (54) is 20cm.

4. The automated irrigation device for monitoring humidity according to claim 1, characterized in that: The soil moisture monitor (61) is located on the bottom plate of the support cylinder (62). The signal end of the soil moisture monitor (61) is inserted downward into the soil. The lower inner cavity (66) includes a monitor fixing plate (661), a limit spring II (662) and a moving screw (663). The soil moisture monitor (61) is fixed below the monitor fixing plate (661), and the limit spring II (662) and the moving screw (663) are connected above to form a moving device. The moving screw (663) is fixed on the barrier plate (65). The upper inner cavity (64) houses the telescopic fixing mechanism (5).

5. The automated irrigation device for monitoring humidity according to claim 1, characterized in that: The telescopic fixing mechanism (5) and the support cylinder (62) are both made of stainless steel, and the arrangement plate (1) is made of plexiglass.

6. The automated irrigation device for monitoring humidity according to claim 1, characterized in that: The air humidity monitoring system (2) is located at the same level as the plant.

7. The automated irrigation device for monitoring humidity according to claim 1, characterized in that: The aluminum foil sheets (22) are arranged at 180° intervals around the central scales of the special pine cone (21).

8. An irrigation method for automating ecological humidity monitoring using the device according to any one of claims 1-7, characterized in that, The irrigation method includes the following steps: The first step is to determine the environmental requirements of the watered plants for air humidity and soil humidity, and to determine the linear relationship between the horizontal displacement of the scales of the specially made pine cone (21) and air humidity and watering time. Step 2: Adjust the air humidity monitoring system (2) to the same level as the plant, adjust the extension water pipe (32) to the designated watering position, adjust the distance between the probe of the eddy current displacement sensor (23) and the aluminum foil (22) through the positioning ring (24), and input the linear relationship between the opening and closing time of the scales of the special pine cone (21) and the air humidity, as well as the humidity requirements of the plant, into the remote control device (7); if the watered plant has a requirement for soil humidity, adjust the extension soil humidity monitoring meter (61) to insert it downward into the soil; Step 3: When the air humidity decreases, the scale opening of the special pine cone (21) reaches the threshold. The displacement signal of the aluminum foil paper (22) is identified by the probe of the eddy current displacement sensor (23) and output to the remote control device (7). The remote control device (7) simultaneously opens several wireless remote control valves suspended above the special pine cone (21) and the plant to irrigate the target. If the soil moisture monitor (61) detects that the soil moisture is too low, the remote control device opens the wireless remote control valve (33) suspended at the root of the plant to replenish the soil. Step 4: After watering is completed, the scales of the special pine cone (21) close. The eddy current displacement sensor (23) probe identifies the reset signal of the aluminum foil paper (22) and feeds it back to the remote control device (7). This closes several wireless remote control valves (33) hanging above the special pine cone (21) and the plant. If the soil moisture monitor (61) detects that the soil moisture meets the requirements, the remote control device (7) closes the wireless remote control valves hanging at the roots of the plant.

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