Soil fertility monitoring device for intelligent agriculture

Abstract

The utility model relates to a soil fertility monitoring device for intelligent agriculture, and relates to the field of intelligent agriculture, the soil fertility monitoring device comprises a shell, a controller, a power supply, a driving assembly and a detection assembly, the controller and the power supply are both installed in the shell; the detection assembly comprises a detection electrode and a moving frame, the detection electrode is fixedly arranged below the moving frame, the moving frame is slidably installed in the shell in the vertical direction, a sampling hole is formed in the bottom of the shell, and the detection electrode corresponds to the sampling hole; the driving assembly is fixedly arranged in the shell and used for driving the moving frame to move in the vertical direction. And the power supply, the driving assembly and the detection electrode are electrically connected with the controller. Intelligent telescopic control of the detection electrode is realized through the driving assembly, so that the detection electrode only extends out of the shell to be in contact with soil when measurement is needed, the problem of oxidation corrosion caused by the fact that the detection electrode is located in wet soil for a long time is effectively solved, and the overall service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of smart agriculture, and in particular to a soil fertility monitoring device for smart agriculture. Background Technology

[0002] A soil fertility monitoring device is a tool used to measure key nutrients and physicochemical properties in soil. The device works by having detection electrodes in contact with the soil. When a corresponding element in the soil comes into contact with the corresponding detection electrode, the current in the detection electrode changes according to the element content. This allows the device to detect the content of nitrogen, phosphorus, and potassium in the soil, helping users to scientifically assess the soil nutrient content.

[0003] Currently, a Chinese patent with announcement number CN 218496924 U and announcement date of February 17, 2023, proposes a soil fertility monitoring system. The sensing monitoring device includes a soil burial positioning frame and a comprehensive soil sensor installed on the soil burial positioning frame. The solar power supply equipment includes a support frame and a wireless transmission module installed on the support frame. The comprehensive soil sensor is electrically connected to the wireless transmission module.

[0004] During use, the integrated soil sensor and the soil-buried positioning frame are always buried in the soil. At the same time, the soil sensor is connected to the wireless transmission module on the ground via a data cable to realize data transmission.

[0005] Regarding the aforementioned technologies, the soil below is relatively moist, and there are active animals in the soil. This increases the likelihood of oxidation or corrosion when the soil integrated sensor and data cable are directly buried in the soil. Furthermore, the data cable buried in the soil is easily damaged by small animals, causing the soil fertility monitoring system to malfunction. Utility Model Content

[0006] In order to reduce the probability of soil fertility monitoring system failure and extend the service life of soil fertility monitoring device, this utility model provides a soil fertility monitoring device for smart agriculture.

[0007] This utility model provides a soil fertility monitoring device for smart agriculture, which adopts the following technical solution:

[0008] A smart agriculture soil fertility monitoring device includes: a housing, a controller, a power supply, a drive assembly, and a detection assembly. The controller and power supply are both installed inside the housing. The detection assembly includes a detection electrode and a movable frame. The detection electrode is fixedly disposed below the movable frame, and the movable frame is slidably mounted inside the housing in a vertical direction. A sampling hole is provided at the bottom of the housing, and the detection electrode is disposed corresponding to the sampling hole. The drive assembly is fixedly disposed inside the housing and is used to drive the movable frame to move in a vertical direction. The power supply, the drive assembly, and the detection electrode are all electrically connected to the controller.

[0009] By adopting the above technical solution, the detection electrode is normally stored inside the housing. Only during detection, the controller controls the drive assembly to move the moving frame downwards, allowing the detection electrode mounted on the moving frame to pass through the sampling hole and contact the soil for measurement. After the measurement is completed, the drive assembly controls the moving frame to move upwards, retracting the detection electrode mounted on the moving frame back into the sampling hole and storing it inside the housing, reducing the long-term exposure of the detection electrode to moist soil. In this way, by dynamically adjusting the movement of the detection electrode, the contact time between the sensor and the soil is reduced, thereby reducing the probability of oxidation of the detection electrode and a decrease in detection accuracy. At the same time, storing the detection electrode and data cable inside the housing for protection effectively reduces the probability of damage caused by animal chewing, extending the service life of the device.

[0010] Optionally, a cover is provided on the top of the housing, and the controller, the power supply, the drive assembly, and the detection assembly are all mounted on the cover.

[0011] By adopting the above technical solution, the core components are centrally installed on a detachable cover. When cleaning and maintenance are required, the cover can be directly removed to take out the internal components as a whole, which facilitates the regular maintenance and repair of the internal components.

[0012] Optionally, the housing is provided with a sliding groove, and the side wall of the movable frame is provided with a slider, which is slidably disposed in the sliding groove.

[0013] By adopting the above technical solution, a sliding block and a sliding groove are used to guide the directional movement of the mobile frame. When the mobile frame is raised or lowered, the sliding block on the side of the mobile frame slides along the vertical track set by the sliding groove, thereby increasing the stability of the mobile frame during movement. This allows the detection electrode to be aligned with the sampling hole on the housing during the movement of the mobile frame. In this way, the cooperation between the sliding block and the sliding rail ensures that the detection electrode always maintains a vertical lifting trajectory, reducing the probability of the detection electrode interfering with the housing and causing damage due to skewness during the movement of the mobile frame.

[0014] Optionally, the bottom of the slide groove is provided with an abutment portion, which protrudes within the slide groove.

[0015] By adopting the above technical solution, a raised limiting structure is set at the bottom of the slide groove; when the moving frame descends to the lowest point, the slider stops moving when it contacts the abutment part, which can limit the downward movement distance of the moving frame. In this way, by limiting the movement distance of the moving frame by the abutment part, the probability of the moving frame moving a large distance downward and interfering with other structures at the bottom of the housing can be reduced, thus reducing the probability of damage to the device.

[0016] Optionally, the drive assembly includes a motor and a lead screw. The lead screw is vertically disposed inside the housing. A lead screw nut is disposed on the movable frame and sleeved on the lead screw. The motor is fixedly disposed inside the housing and is used to drive the lead screw to rotate. The motor is electrically connected to the controller.

[0017] By adopting the above technical solution, the movement distance of the moving frame can be precisely controlled using a lead screw drive. When the motor drives the lead screw to rotate, the lead screw nut causes the moving frame to produce a linear displacement along the vertical direction on the lead screw. During the rotation of the lead screw, the moving frame can be slowly driven to move, and a stable power is provided for the linear movement of the moving frame, allowing the detection electrode to be stably inserted into the soil. In this way, driving the detection electrode to move through the lead screw not only improves the smoothness of the detection electrode movement through stable power output, but also precisely controls the insertion depth into the soil, improving the consistency of measurement data.

[0018] Optionally, a cleaning component is provided at the sampling hole location. The cleaning component includes a cleaning brush and a driving component. The cleaning brush is arranged in a ring shape and is rotatably disposed inside the housing. The cleaning brush is disposed corresponding to the sampling hole. The driving component is fixedly disposed inside the housing and is pulsatorically connected to the cleaning brush. The driving component is electrically connected to the controller.

[0019] By adopting the above technical solution, a rotating cleaning brush is installed around the sampling hole, which can clean the outer circumference of the detection electrode as it retracts from the sampling hole. After each test, as the detection electrode retracts from the sampling hole into the housing, the drive unit rotates the annular cleaning brush, which contacts and cleans the outer wall of the detection electrode, reducing the amount of dirt adhering to the outer wall. Thus, by incorporating the cleaning component, soil residue adhering to the outer wall of the detection electrode can be effectively removed, minimizing the impact of dirt on the accuracy of subsequent tests.

[0020] Optionally, the cleaning component further includes a scraper, which is disposed outside the housing and is correspondingly disposed to the sampling hole.

[0021] By adopting the above technical solution, a scraper is installed at the device's burial site to scrape off the soil adhering to the detection electrode, further reducing the amount of soil adhering to the electrode. When the detection electrode is inserted into the soil, it passes through the scraper and is inserted into the soil. When the detection electrode is retracted from the soil into the housing, it is also retracted into the housing through the scraper. At this time, as the detection electrode is retracted into the housing, the scraper can scrape off the soil adhering to the electrode, reducing the probability of soil adhering to the outer wall of the detection electrode and entering the housing along with the electrode. In this way, the scraper forms a mud-scraping channel, which can effectively reduce the probability of soil adhering to the detection electrode and entering the housing when the detection electrode is retracted from the hole.

[0022] Optionally, the scraper includes multiple elastic petal-shaped structures, and the scraper as a whole is configured with a funnel-shaped opening, with the larger end of the scraper opening close to the sampling hole.

[0023] By adopting the above technical solution, the scraper is made of an elastic petal structure, which can achieve the effect of automatic opening and closing. When the detection electrode is stored in the housing, the elastic petals tend to converge towards the center, so that the scraper is closed. When the detection electrode passes through the scraper, the detection electrode pushes the petals of the scraper outward. When the detection electrode is retracted from the soil into the housing, the petals of the scraper stick to the outer surface of the detection electrode and scrape off the soil attached to the outer periphery of the detection electrode.

[0024] Thus, the elastically designed scraper can automatically open and close. When the detection electrode retracts into the housing, the scraper's flaps automatically snap inward under elastic action, sealing the scraper and reducing the amount of soil entering the sampling hole. When the detection electrode extends, the scraper unfolds outward under the contact of the detection electrode and adheres to the outer surface of the detection electrode, allowing the detection electrode to pass through and reducing the gap between the detection electrode and the sampling hole, thereby reducing the probability of soil entering the housing from the gap between the detection electrode and the scraper.

[0025] Optionally, a solar panel is also provided on the housing, and the solar panel is electrically connected to the power source.

[0026] By adopting the above technical solution, a solar power supply system is integrated on the top of the device; the solar panels convert light energy into electrical energy and store it in the power supply to achieve continuous self-power supply, reduce dependence on external power sources, and are suitable for long-term monitoring of outdoor farmland.

[0027] Optionally, an Internet of Things (IoT) module is also provided inside the housing, and the IoT module is electrically connected to the controller.

[0028] By adopting the above technical solution, the IoT module installed inside the casing can upload data in real time, realize remote real-time monitoring of soil fertility, reduce the frequency of manual inspections, and improve agricultural management efficiency.

[0029] In summary, this utility model has at least one of the following beneficial technical effects:

[0030] The intelligent extension and retraction control of the detection electrode is achieved by the drive component, so that the detection electrode only extends out of the shell to contact the soil when measurement is needed, and is stored inside the shell at other times. This can effectively reduce the contact time between the detection electrode and the soil, and effectively reduce the oxidation and corrosion problems caused by the detection electrode being in moist soil for a long time. At the same time, the closed storage structure can also concentrate the circuit inside the shell, which can resist the chewing and damage of animals such as field mice, and reduce the probability of the device being damaged.

[0031] A cleaning solution combining a rotating cleaning brush and an elastic scraper is adopted: the built-in ring cleaning brush removes surface deposits when the detection electrode retracts, while the external elastic scraper forms a dynamic seal through a petal-like structure. This dual cleaning action effectively reduces the amount of dirt remaining on the surface of the detection electrode when it enters the housing. This not only reduces the probability of soil particles entering the housing and causing mechanical jamming, but also improves the cleanliness of the detection electrode surface for each subsequent test, thereby enhancing the accuracy of data monitoring.

[0032] By integrating the core components into a detachable cover, when it is necessary to inspect and maintain the internal parts, there is no need to dig out the entire device. The internal parts can be cleaned and maintained simply by removing the cover, which improves the convenience of maintenance. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the overall structure detection status of an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the internal structure of an embodiment of this application;

[0036] Figure 4 This is an exploded view of the structure of an embodiment of this application.

[0037] Explanation of reference numerals in the attached drawings: 100, housing; 101, sampling hole; 102, slide groove; 103, contact part; 110, cover; 120, solar panel; 130, IoT module; 200, controller; 300, power supply; 400, drive assembly; 410, motor; 420, lead screw; 500, detection assembly; 510, moving frame; 511, slider; 512, lead screw nut; 520, detection electrode; 600, cleaning assembly; 610, cleaning brush; 620, drive component; 630, scraper. Detailed Implementation

[0038] The following combination Figures 1 to 4The present invention will be described in further detail below.

[0039] This utility model discloses a soil fertility monitoring device for smart agriculture. (Refer to...) Figures 1 to 3 A smart agriculture soil fertility monitoring device mainly includes a housing 100, a controller 200, a power supply 300, a drive assembly 400, and a detection assembly 500. The housing 100 serves as the protective body, and the controller 200 and the power supply 300 are installed inside the housing 100. The detection assembly 500 includes a liftable movable frame 510 and detection electrodes 520 mounted on the movable frame 510. The movable frame 510 is controlled to move by the drive assembly 400 installed inside the housing 100. A sampling hole 101 is provided at the bottom of the housing 100 for the detection electrodes 520 to extend, allowing the detection electrodes 520 to pass through the sampling hole 101 to contact the soil and perform detection.

[0040] Reference Figures 1 to 3 The housing 100 is a cylindrical structure with a bottom. A removable cover 110 is provided on the top of the housing 100. The cover 110 is installed on the top of the housing 100 by threads. The controller 200, power supply 300, and drive assembly 400 are all integrated on the cover 110. Vertical sliding grooves 102 are provided on both sides inside the housing 100. The sliding grooves 102 are arranged along the length of the housing 100, and the bottom of the sliding grooves 102 is provided with a protruding structure to form an abutment part 103. A circular sampling hole 101 corresponding to the size of the detection electrode 520 is opened at the bottom of the housing 100. When maintenance is required, the cover 110 is removed to take out the internal components as a whole and clean and maintain the inside of the housing 100.

[0041] Reference Figure 4 In order to increase the battery life of the monitoring device, a solar panel 120 is installed on the top of the cover 110. The solar panel 120 is connected to the controller 200 and can charge the power supply 300 after the current is regulated by the controller 200.

[0042] Reference Figure 3 In order to reduce the need for manual collection of soil fertility monitoring data, the controller 200 is also equipped with an Internet of Things (IoT) module 130. After the detection electrode 520 detects the results, the IoT module 130 directly sends the results to the cloud computing platform to realize remote management of the soil fertility monitoring device.

[0043] Reference Figure 3 and Figure 4The detection assembly 500 includes a movable frame 510 and a detection electrode 520 fixed below the movable frame 510. The movable frame 510 has a cylindrical structure and sliders 511 are provided on both sides of the movable frame 510. The sliders 511 are slidably installed in the grooves 102 inside the housing 100. When the driving member 620 drives the movable frame 510 to move downward, the detection electrode 520 provided below the movable frame 510 extends out of the sampling hole 101 at the bottom of the housing 100 and contacts the soil. When the slider in the groove 102 moves to contact the abutment part 103 in the groove 102, the movable frame 510 moves to the lowest position, at which time the detection electrode 520 extends out of the sampling hole to the maximum distance.

[0044] Reference Figure 3 and Figure 4 The drive assembly 400 includes a motor 410 and a lead screw 420. A support platform is threadedly connected to the bottom of the cover 110. The motor 410 is fixedly mounted on the support platform. The lead screw 420 passes through the support platform and is fixedly connected to the output shaft of the motor 410. A through hole is provided on the movable frame 510. A lead screw nut 512 is fixedly installed in the through hole. The lead screw nut 512 is installed in cooperation with the lead screw 420. When the motor 410 drives the lead screw 420 to rotate, the lead screw 420 and the lead screw nut 512 cooperate to drive the movable frame 510 to move along the axis of the lead screw 420. The setting direction of the lead screw 420 and the extension direction of the slide groove 102 on the housing 100 are both vertical, thereby controlling the detection electrode 520 to move vertically inside the housing 100.

[0045] Reference Figure 3 The cleaning assembly 600 includes an annular cleaning brush 610 inside the housing 100, a drive unit 620 for driving the cleaning brush 610 to rotate, and an elastic scraper 630 disposed on the outside of the housing 100. An annular boss extending into the housing 100 is provided at the sampling hole 101 at the bottom of the housing 100. The cleaning brush 610 is rotatably mounted on the annular boss at the bottom of the housing 100 via a bearing. A gear is provided at the bottom of the cleaning brush 610. The drive unit 620 is a motor 410, and a gear is fixedly disposed on the output shaft of the drive unit 620. By connecting the gear on the cleaning brush 610 to the drive unit 620... The engagement of the output shaft enables the drive component 620 to drive the cleaning brush 610 to rotate. In order for the cleaning brush 610 to wipe the dirt off the detection electrode 520, the inner diameter of the cleaning brush 610 is consistent with the diameter of the detection electrode 520. The scraper 630 is composed of multiple elastic petal structures. The scraper 630 has an overall trumpet-shaped structure, and the end of the scraper 630 with the larger opening is fixedly set at the bottom of the housing 100. When the detection electrode 520 retracts, the elastic petals of the scraper 630 stick to the outer wall of the electrode and scrape off the residual soil. The cleaning brush 610 rotates to remove the dirt attached to the surface of the detection electrode 520.

[0046] The implementation principle of the intelligent agricultural soil fertility monitoring device of this utility model embodiment is as follows: When soil fertility needs to be tested, the controller 200 controls the motor 410 to drive the lead screw 420 to rotate. The lead screw 420, in cooperation with the lead screw nut 512, drives the moving frame 510 to move downward. During the downward movement of the moving frame 510, the detection electrode 520 can pass through the sampling hole 101 and contact the soil. When the detection electrode 520 passes through the sampling hole 101, it can open the petals of the scraper 630 and enter the soil. After the measurement is completed, the motor... 410 reverses, causing the moving frame 510 to move upward, which in turn drives the detection electrode 520 to move upward and retract into the housing 100. During the retraction of the detection electrode 520, the flaps of the scraper 630 adhere to the surface of the detection electrode 520 to scrape away dirt. At the same time, the drive unit 620 starts the cleaning brush 610 to rotate, further cleaning the electrode surface. After the detection electrode 520 is completely retracted into the housing 100, the flaps of the scraper 630 completely close and seal the sampling hole 101. The detection data is uploaded to the cloud through the Internet of Things module 130, and the solar panel 120 continuously replenishes the power supply 300 with power.

[0047] In summary, this application achieves intelligent extension and retraction control of the detection electrode 520 through the drive component 400, allowing the detection electrode 520 to extend out of the housing 100 and contact the soil only when measurement is required, effectively reducing the oxidation and corrosion problems caused by the detection electrode 520 being in moist soil for a long time. At the same time, the detection electrode 520 adopts a combined cleaning solution of a rotating cleaning brush 610 and an elastic scraper 630, which can remove the surface deposits of the detection electrode 520 when it retracts. This not only reduces the probability of soil particles entering the housing 100 and causing mechanical jamming, but also improves the cleanliness of the surface of the detection electrode 520 before each subsequent test, thereby improving the accuracy of data monitoring.

[0048] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made according to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A soil fertility monitoring device for smart agriculture, characterized in that, include: The housing (100), controller (200), power supply (300), drive assembly (400) and detection assembly (500) are provided, wherein the controller (200) and power supply (300) are both installed inside the housing (100); The detection assembly (500) includes a detection electrode (520) and a movable frame (510). The detection electrode (520) is fixedly disposed below the movable frame (510). The movable frame (510) is slidably installed inside the housing (100) in the vertical direction. A sampling hole (101) is provided at the bottom of the housing (100). The detection electrode (520) is correspondingly disposed with respect to the sampling hole (101). The drive assembly (400) is fixedly disposed inside the housing (100), and the drive assembly (400) is used to drive the moving frame (510) to move in the vertical direction; The power supply (300), the drive assembly (400), and the detection electrode (520) are all electrically connected to the controller (200).

2. The soil fertility monitoring device for smart agriculture according to claim 1, characterized in that: The housing (100) is provided with a cover (110) on top, and the controller (200), the power supply (300), the drive assembly (400), and the detection assembly (500) are all installed on the cover (110).

3. The soil fertility monitoring device for smart agriculture according to claim 2, characterized in that: The housing (100) has a sliding groove (102) inside, and the movable frame (510) has a slider (511) on its side wall. The slider (511) is slidably disposed in the sliding groove (102).

4. The soil fertility monitoring device for smart agriculture according to claim 3, characterized in that: The bottom of the slide groove (102) is provided with an abutment part (103), which protrudes inside the slide groove (102).

5. The soil fertility monitoring device for smart agriculture according to claim 4, characterized in that: The drive assembly (400) includes a motor (410) and a lead screw (420). The lead screw (420) is arranged vertically inside the housing (100). A lead screw nut (512) is provided on the moving frame (510). The lead screw nut (512) is sleeved on the lead screw (420). The motor (410) is fixedly arranged inside the housing (100). The motor (410) is used to drive the lead screw (420) to rotate. The motor (410) is electrically connected to the controller (200).

6. A soil fertility monitoring device for smart agriculture according to any one of claims 1-5, characterized in that: A cleaning component (600) is provided at the sampling hole (101). The cleaning component (600) includes a cleaning brush (610) and a driving component (620). The cleaning brush (610) is arranged in a ring shape and is rotatably disposed inside the housing (100). The cleaning brush (610) is disposed corresponding to the sampling hole (101). The driving component (620) is fixedly disposed inside the housing (100) and is connected to the cleaning brush (610) in a transmission manner. The driving component (620) is electrically connected to the controller (200).

7. A soil fertility monitoring device for smart agriculture according to claim 6, characterized in that: The cleaning component (600) also includes a scraper (630) disposed outside the housing (100) and corresponding to the sampling hole (101).

8. A soil fertility monitoring device for smart agriculture according to claim 7, characterized in that: The scraper (630) includes multiple elastic petal-shaped structures. The scraper (630) is generally arranged with a funnel-shaped opening. The end of the scraper (630) with the larger opening is close to the sampling hole (101).

9. A soil fertility monitoring device for smart agriculture according to any one of claims 1-5, characterized in that: A solar panel (120) is also provided on the housing (100), and the solar panel (120) is electrically connected to the power source (300).

10. A soil fertility monitoring device for smart agriculture according to any one of claims 1-5, characterized in that: The housing (100) is also equipped with an Internet of Things (IoT) module (130), which is electrically connected to the controller (200).

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