Intelligent drip irrigation device based on soil humidity sensor

Abstract

The application discloses an intelligent drip irrigation device based on a soil humidity sensor, which comprises a water tank and adjustable infiltration irrigation mechanisms; a water pump in the water tank is connected with a main pipe; a plurality of infiltration irrigation groups are arranged on the side wall of the main pipe; each infiltration irrigation group comprises a branch pipe, a plurality of adjustable infiltration irrigation mechanisms and a plurality of humidity sensors; the adjustable infiltration irrigation mechanism comprises a pipe body, a porous ceramic water infiltration head and a sleeve type adjusting mechanism; the sleeve type adjusting mechanism is arranged on the outer wall of the porous ceramic water infiltration head; the sleeve type adjusting mechanism comprises an adjusting ring and a sealing ring; by screwing the sleeve type adjusting mechanism, the distance between the sealing ring and the tail end of the porous ceramic water infiltration head is steplessly adjusted; the effective water infiltration area of the porous ceramic water infiltration head exposed to the soil is controlled; the water infiltration rate is adjusted; the device is adapted to the requirements of different crops and soil; the water is infiltrated by utilizing the micropore capillary action of the porous ceramic water infiltration head; the water flow is slow and uniform; and the risk of impurity blockage is reduced.

Description

Technical Field

[0001] This application relates to the field of agricultural irrigation technology, and in particular to an intelligent drip irrigation device based on a soil moisture sensor. Background Technology

[0002] Drip irrigation is a highly efficient water-saving irrigation method that delivers water directly to the roots of crops through a pipeline system for localized irrigation. However, existing drip irrigation systems still have some shortcomings: First, most drip heads have a fixed water flow rate, which cannot be flexibly adjusted according to the water requirements of different crops or the permeability of different soils, thus limiting their applicability. Second, traditional drip heads have small outlet holes, which are easily clogged by impurities in the water or soil particles, affecting irrigation efficiency and increasing maintenance costs. In addition, existing automated drip irrigation systems are mostly based on timed control and cannot respond to the actual soil moisture status in real time, which may lead to under-irrigation or over-irrigation, resulting in water waste. Utility Model Content

[0003] This application provides an intelligent drip irrigation device based on a soil moisture sensor. The device is equipped with an adjustable seepage irrigation mechanism. By rotating the sleeve-type adjustment mechanism, the distance between the sealing ring and the end of the porous ceramic seepage head can be steplessly adjusted, thereby controlling the effective seepage area of ​​the porous ceramic seepage head exposed in the soil and adjusting the seepage rate. This allows the device to adapt to the needs of different crops and soil types. It utilizes the capillary action of the micropores of the porous ceramic seepage head to seep water, resulting in a slow and uniform water flow and reducing the risk of blockage by impurities. The device monitors soil moisture in real time through a moisture sensor and uses a PLC controller to automatically control the opening and closing of the solenoid valve, realizing on-demand zoned irrigation based on soil moisture conditions, thus saving water and protecting the environment.

[0004] This application provides an intelligent drip irrigation device based on a soil moisture sensor, including: a water tank and an adjustable drip irrigation mechanism. A water pump in the water tank is connected to a main pipe. Several drip irrigation groups are arranged on the side wall of the main pipe. Each drip irrigation group includes a branch pipe, multiple adjustable drip irrigation mechanisms and multiple moisture sensors. Several branch pipes are connected to the side wall of the main pipe. A solenoid valve is installed on each branch pipe near the main pipe. Several moisture sensors in each drip irrigation group are electrically connected to the corresponding solenoid valve. Several adjustable drip irrigation mechanisms are evenly installed on both sides of each branch pipe.

[0005] The adjustable drip irrigation mechanism includes a pipe body, a porous ceramic drip head, and a sleeve-type adjustment mechanism. One end of the pipe body is connected to a branch pipe, and the other end of the pipe body is fixedly connected to a shell. The end of the shell away from the pipe body is connected to a porous ceramic drip head. The outer wall of the porous ceramic drip head is fitted with a sleeve-type adjustment mechanism, which includes an adjustment ring and a sealing ring.

[0006] The water tank and adjustable drip irrigation mechanism are connected to a PLC controller, and the water pump, various humidity sensors and solenoid valves are electrically connected to the PLC controller.

[0007] Furthermore, the porous ceramic seepage head is divided into a seepage section and a non-seepage section, and the non-seepage section of the porous ceramic seepage head is provided with external threads.

[0008] Furthermore, the adjusting ring of the sleeve-type adjusting mechanism is connected to the external thread of the porous ceramic seepage head through the internal thread.

[0009] Furthermore, a limiting ring is provided on the outer wall of the porous ceramic permeator.

[0010] Furthermore, a sealing ring is provided inside the adjusting ring of the sleeve-type adjusting mechanism, and the sealing ring is in close contact with the porous ceramic seepage head.

[0011] Furthermore, the PLC controller is equipped with a display screen and several operation buttons.

[0012] As can be seen from the above technical solution, this application provides an intelligent drip irrigation device based on a soil moisture sensor, including: a water tank and an adjustable drip irrigation mechanism. A water pump in the water tank is connected to a main pipe. Several drip irrigation groups are arranged on the side wall of the main pipe. Each drip irrigation group includes a branch pipe, multiple adjustable drip irrigation mechanisms, and multiple moisture sensors. Several branch pipes are connected to the side wall of the main pipe. A solenoid valve is installed on each branch pipe near the main pipe. Several moisture sensors in each drip irrigation group are electrically connected to the corresponding solenoid valve. Several adjustable drip irrigation mechanisms are evenly installed on both sides of each branch pipe. The adjustable drip irrigation mechanism includes a pipe body, a porous ceramic drip head, and a sleeve-type adjustment mechanism. One end of the pipe body is connected to the branch pipe, and the other end of the pipe body is fixedly connected to a housing. The end of the housing away from the pipe body is connected to a porous ceramic drip head. A sleeve-type adjustment mechanism is sleeved on the outer wall of the porous ceramic drip head. The sleeve-type adjustment mechanism includes an adjustment ring and a sealing ring. The water tank and... The adjustable drip irrigation mechanism is externally connected to a PLC controller. The water pump, various humidity sensors, and solenoid valves are electrically connected to the PLC controller. When the system is working, the humidity sensors in each area continuously transmit soil moisture data to the PLC controller. The PLC controller calculates the average value and compares it with a preset threshold. When the soil moisture in a certain area (e.g., area A) is lower than the threshold, the PLC controller will issue a command to open the solenoid valve of the branch pipe corresponding to area A and start the water pump to begin irrigation of that area. The irrigation water flows through the main pipe and branch pipes, and finally seeps out from the porous ceramic seepage heads of the adjustable drip irrigation mechanism under each branch pipe. When the humidity sensor detects that the soil moisture has reached the set target value, the PLC controller will close the corresponding branch pipe solenoid valve and water pump to stop irrigation. The PLC controller automatically controls the opening and closing of the solenoid valves to achieve on-demand zoned irrigation based on soil moisture conditions, saving water and protecting the environment.

[0013] In summary, the beneficial effects of this application are as follows:

[0014] 1. The device is equipped with an adjustable drip irrigation mechanism. By rotating the sleeve-type adjustment mechanism, the distance between the sealing ring and the end of the porous ceramic drip head can be adjusted steplessly, thereby controlling the effective seepage area of ​​the porous ceramic drip head exposed in the soil and adjusting the seepage rate, so that the device can adapt to the needs of different crops and soil types.

[0015] 2. The adjustable drip irrigation mechanism of this device is equipped with porous ceramic seepage heads. Water is seeped through the capillary action of the micropores of the porous ceramic seepage heads, resulting in a slow and uniform water flow and reducing the risk of blockage by impurities.

[0016] 3. This device monitors soil moisture in real time through a humidity sensor, and then uses a PLC controller to automatically control the opening and closing of the solenoid valve, so as to realize on-demand zoned irrigation based on soil moisture conditions, saving water and protecting the environment. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this application.

[0019] Figure 2 This is a schematic diagram of the adjustable drip irrigation mechanism of this application.

[0020] Figure 3 This is a breakdown diagram of the adjustable drip irrigation mechanism of this application.

[0021] Figure 4 This is a schematic diagram of the PLC controller structure in this application.

[0022] Figure 5 This is a flowchart of the operation of the device in this application.

[0023] Illustration:

[0024] Among them, 1-water tank, 2-main pipe, 3-branch pipe, 4-adjustable drip irrigation mechanism, 41-pipe body, 42-shell, 43-porous ceramic drip head, 431-drip section, 432-non-drip section, 433-limiting ring, 44-external thread, 45-sleeve type adjustment mechanism, 451-adjusting ring, 452-sealing ring, 5-humidity sensor, 6-solenoid valve, 7-water pump, 8-PLC controller. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0026] As can be seen from the above technical solutions, see [link / reference]. Figures 1-5 .

[0027] Example 1:

[0028] A smart drip irrigation device based on soil moisture sensors includes: a water tank 1 and an adjustable drip irrigation mechanism 4. A water pump 7 inside the water tank 1 is connected to a main pipe 2. The water tank 1 is used for water storage. When irrigation is needed, a PLC controller 8 controls the water pump 7 to start. The water pump 7 pumps water from the water tank 1 into the main pipe 2 and then into branch pipes 3 for drip irrigation. Several drip irrigation groups are arranged on the side wall of the main pipe 2. Each drip irrigation group includes a branch pipe 3, multiple adjustable drip irrigation mechanisms 4, and multiple moisture sensors 5. Several branch pipes 3 are connected to the side wall of the main pipe 2. A solenoid valve 6 is installed on each branch pipe 3 near the main pipe 2. Several moisture sensors 5 in each drip irrigation group are electrically connected to the corresponding solenoid valve 6. Each drip irrigation group... The group is used to irrigate a designated area. Multiple humidity sensors 5 are inserted into the soil in the area to monitor the soil moisture in real time and transmit the signal data to the PLC controller 8. The PLC controller 8 calculates the average value of the soil moisture data monitored by the humidity sensors 5 to determine the soil moisture condition, and then controls the opening and closing of the solenoid valve 6 on the branch pipe 3 of the drip irrigation group to irrigate the area. By combining the PLC controller 8 and the humidity sensors 5, it is possible to realize on-demand zoned irrigation based on soil moisture conditions, which is water-saving and environmentally friendly. Several adjustable drip irrigation mechanisms 4 are evenly installed on both sides of each branch pipe 3. After water enters the branch pipe 3, it seeps out through several adjustable drip irrigation mechanisms 4 to irrigate the soil.

[0029] The adjustable drip irrigation mechanism 4 includes a pipe body 41, a porous ceramic drip head 43, and a sleeve-type adjustment mechanism 45. One end of the pipe body 41 is connected to a branch pipe 3, and the other end of the pipe body 41 is fixedly connected to a housing 42. The end of the housing 42 away from the pipe body 41 is connected to the porous ceramic drip head 43. A protective cover is fixedly installed on the housing 42. One end of the protective cover is movably sleeved on the outer wall of the sleeve-type adjustment mechanism 45, but the two are not connected. The protective cover protects the threaded connection of the porous ceramic drip head 43. The sleeve-type adjustment mechanism 45 is sleeved on the outer wall of the porous ceramic drip head 43. The regulating mechanism 45 includes an adjusting ring 451 and a sealing ring 452. By manually turning the adjusting ring 451 of the sleeve-type adjusting mechanism 45 on the outer wall of the adjustable drip irrigation mechanism 4, the distance between the sealing ring 452 and the end of the porous ceramic drip head 43 can be steplessly adjusted, thereby controlling the effective seepage area of ​​the porous ceramic drip head 43 exposed in the soil, and thus adjusting the seepage rate. This allows the device to adapt to the needs of different crops and soil types. The porous ceramic drip head 43 is made of porous ceramic material with a microporous structure. It uses capillary action to make the water flow slowly and evenly, reducing the risk of impurities clogging the water.

[0030] The water tank 1 and the adjustable drip irrigation mechanism 4 are connected to a PLC controller 8, model JS-68T-D. The water pump 7, various humidity sensors 5 and solenoid valves 6 are electrically connected to the PLC controller 8. The PLC controller 8 is preferably a standard PLC from Junchuang Automation Technology Co., Ltd. The PLC controller 8 controls the switching of the water pump 7 and various solenoid valves 6, thereby irrigating the irrigation area. The humidity sensors 5 monitor the soil moisture and feed the data signal back to the PLC controller 8. The PLC controller 8 controls the switching of the corresponding solenoid valves 6, realizing on-demand zoned irrigation based on soil moisture conditions, saving water and protecting the environment.

[0031] As a preferred embodiment, the porous ceramic seepage head 43 is divided into a seepage section 431 and a non-seepage section 432. The non-seepage section 432 of the porous ceramic seepage head 43 is provided with an external thread 44. The seepage rate can be adjusted by adjusting the external leakage area of ​​the seepage section 431.

[0032] In a preferred embodiment, the adjusting ring 451 of the sleeve-type adjusting mechanism 45 is connected to the external thread 44 of the porous ceramic seepage head 43 via an internal thread. The adjusting ring 451 has an internal thread on its inner side. The position of the sleeve-type adjusting mechanism 45 is adjusted by engaging the internal thread of the adjusting ring 451 with the external thread 44 of the porous ceramic seepage head 43. When the user manually screws the adjusting ring 451, the adjusting ring 451 moves along the axial direction of the porous ceramic seepage head 43. When the adjusting ring 451 is screwed in towards the front end (i.e., towards the housing 42), the exposed section (i.e., the effective seepage section 431) between the sealing ring 452 and the end of the porous ceramic seepage head 43 increases, the seepage area increases, and the seepage rate increases. Conversely, when the adjusting ring 451 is screwed out backward, the effective seepage section 431 shortens, the seepage area decreases, and the seepage rate slows down. In this way, stepless adjustment of the seepage rate is achieved.

[0033] In a preferred embodiment, a limiting ring 433 is provided on the outer wall of the porous ceramic seepage head 43, which restricts the position of the sleeve-type adjustment mechanism 45.

[0034] In a preferred embodiment, a sealing ring 452 is provided inside the adjusting ring 451 of the sleeve-type adjusting mechanism 45. The sealing ring 452 is in close contact with the porous ceramic seepage head 43. The sealing ring 452 is made of elastic material such as rubber, and its inner diameter is slightly smaller than the outer diameter of the porous ceramic seepage head 43, so that it can be in close contact with and seal the outer wall of the seepage section 431 of the porous ceramic seepage head 43.

[0035] In a preferred embodiment, the PLC controller 8 is equipped with a display screen and several operation buttons. The display screen shows the soil moisture status, the square button is used to set the threshold monitored by the soil moisture sensor 5, and the round button is used to control the on / off status of the water pump 7 and the solenoid valve 6.

[0036] Working principle:

[0037] When the system is working, the humidity sensors 5 in each area continuously transmit soil moisture data to the PLC controller 8. The PLC controller 8 calculates the average value and compares it with a preset threshold. When the soil moisture in a certain area (e.g., area A) is lower than the threshold, the PLC controller 8 will issue a command to open the solenoid valve 6 of the branch pipe 3 corresponding to area A and start the water pump 7 to begin irrigation of that area. The irrigation water flows through the main pipe 2 and the branch pipe 3, and finally seeps out from the porous ceramic seepage heads 43 of the adjustable drip irrigation mechanism 4 under the branch pipe 3. When the humidity sensor 5 detects that the soil moisture has reached the set target value, the PLC controller 8 will close the solenoid valve 6 of the corresponding branch pipe 3 and the water pump 7 to stop irrigation. The PLC controller 8 automatically controls the opening and closing of the solenoid valve 6 to realize on-demand zoned irrigation based on soil moisture conditions, saving water and protecting the environment.

[0038] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0039] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A smart drip irrigation device based on a soil moisture sensor, characterized in that, include: A water tank (1) and an adjustable drip irrigation mechanism (4) are provided. The water pump (7) in the water tank (1) is connected to a main pipe (2). Several drip irrigation groups are provided on the side wall of the main pipe (2). Each drip irrigation group includes a branch pipe (3), multiple adjustable drip irrigation mechanisms (4) and multiple humidity sensors (5). Several branch pipes (3) are connected to the side wall of the main pipe (2). A solenoid valve (6) is installed near the main pipe (2) on each branch pipe (3). Several humidity sensors (5) of each drip irrigation group are electrically connected to the corresponding solenoid valve (6). Several adjustable drip irrigation mechanisms (4) are evenly installed on both sides of each branch pipe (3). The adjustable drip irrigation mechanism (4) includes a pipe body (41), a porous ceramic drip head (43), and a sleeve-type adjustment mechanism (45). One end of the pipe body (41) is connected to the branch pipe (3), and the other end of the pipe body (41) is fixedly connected to a housing (42). The end of the housing (42) away from the pipe body (41) is connected to the porous ceramic drip head (43). The sleeve-type adjustment mechanism (45) is sleeved on the outer wall of the porous ceramic drip head (43). The sleeve-type adjustment mechanism (45) includes an adjustment ring (451) and a sealing ring (452). The water tank (1) and the adjustable drip irrigation mechanism (4) are externally connected to a PLC controller (8), and the water pump (7), each of the humidity sensors (5) and the solenoid valve (6) are electrically connected to the PLC controller (8).

2. The intelligent drip irrigation device based on a soil moisture sensor according to claim 1, characterized in that, The porous ceramic seepage head (43) is divided into a seepage section (431) and a non-seepage section (432), and the non-seepage section (432) of the porous ceramic seepage head (43) is provided with an external thread (434).

3. The intelligent drip irrigation device based on a soil moisture sensor according to claim 1, characterized in that, The adjusting ring (451) of the sleeve-type adjusting mechanism (45) is connected to the external thread (434) of the porous ceramic seepage head (43) through the internal thread.

4. The intelligent drip irrigation device based on a soil moisture sensor according to claim 1, characterized in that, A limiting ring (433) is provided on the outer wall of the porous ceramic seepage head (43).

5. The intelligent drip irrigation device based on a soil moisture sensor according to claim 1, characterized in that, The sleeve-type adjustment mechanism (45) has a sealing ring (452) inside the adjustment ring (451), and the sealing ring (452) is in close contact with the porous ceramic seepage head (43).

6. The intelligent drip irrigation device based on a soil moisture sensor according to claim 1, characterized in that, The PLC controller (8) is equipped with a display screen and several operation buttons.

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