Soil moisture sensor integrated device

By designing a scalable sensor assembly and a modular soil moisture sensor integrated device, the problems of low detection accuracy and fixed detection depth of existing devices are solved, achieving high-precision and stable soil moisture detection, adapting to various soil environments, and supporting agricultural and scientific research data needs.

CN224303683UActive Publication Date: 2026-05-29NANJING KAIERKANG AGRI DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING KAIERKANG AGRI DEV CO LTD
Filing Date
2025-04-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing soil moisture detection devices have poor detection accuracy and low sensitivity, making it impossible to accurately capture subtle changes in soil moisture. Furthermore, the detection depth is fixed, which fails to fully reflect the vertical distribution of soil moisture, thus limiting their application scope.

Method used

An integrated soil moisture sensor device was designed, comprising a scalable sensor component and a modular structure. Through the integration of a moisture detector, sensor circuitry, and a control module, multi-level soil moisture detection is achieved. It features adjustable detection depth to ensure data accuracy and stability.

Benefits of technology

It enables accurate detection of soil moisture, provides high-precision data to support agriculture and scientific research, improves detection efficiency and device versatility, reduces maintenance costs, and ensures the reliability and stability of detection data.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application relates to the technical field of soil humidity detection equipment, in particular to a soil humidity sensor integrated device, which comprises a control module, a base is fixedly installed on one side of the control module, and a sensor assembly is arranged on one side of the base. The sensor assembly comprises a humidity detector, which can accurately detect soil humidity, provides accurate data support for agricultural production, scientific research and the like, facilitates people to understand the moisture condition of soil, and facilitates people to take appropriate irrigation measures and the like. Multiple components such as the humidity detector are integrated together to form a complete detection system, the detection efficiency and reliability can be effectively improved, and compatibility problems and the like caused by multiple independent components are avoided. The device is composed of a first telescopic assembly, a second telescopic assembly and a third telescopic assembly, can be telescopic adjusted according to different soil depth requirements, can adapt to various soil environments and detection scenes, and the universality and flexibility of the device are improved.
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Description

Technical Field

[0001] This application relates to the field of soil moisture detection equipment technology, and in particular to an integrated soil moisture sensor device. Background Technology

[0002] In numerous fields such as agricultural production, ecological environment monitoring, and geological research, accurate soil moisture detection remains a crucial step. From an agricultural perspective, soil moisture directly affects crop growth, development, and final yield. Appropriate soil moisture provides crops with sufficient water, ensuring successful seed germination and robust plant growth. However, traditional soil moisture detection methods, such as manual judgment or simple fixed-point measurements, are insufficient in accuracy and timeliness to meet the demands of modern agriculture's precision and intelligent development.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following shortcomings: Existing devices lack sufficient detection accuracy; the humidity detection elements they employ have low sensitivity, making it difficult to accurately capture subtle changes in soil moisture, and thus unable to provide high-precision data for agricultural production and scientific research experiments with stringent soil moisture requirements. They also lack adjustable detection depth functionality; the detection rod length is fixed, allowing detection only at a specific depth. Furthermore, they cannot comprehensively reflect the vertical distribution of soil moisture, limiting their application range. Utility Model Content

[0004] In view of the shortcomings of the prior art and in order to solve the problems mentioned in the background art, this application provides an integrated soil moisture sensor device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated soil moisture sensor device, including a control module, a base fixedly installed on one side of the control module, and a sensor assembly disposed on one side of the base.

[0006] The sensor assembly includes a first-section telescopic assembly, a second-section telescopic assembly, and a third-section telescopic assembly. Each of these assemblies includes a main rod, a detection rod body, an air outlet cavity, a positioning plate, an air outlet, an adapter block, sensor wiring, a humidity detector, and a detection rod mounting hole. The main rod is fixedly mounted on the bottom of the base. The top of the main rod has a through-hole for the detection rod mounting hole and an eccentric hole. The detection rod body is fixedly mounted inside the mounting hole. An air outlet cavity is located inside the detection rod body. The bottom of the air outlet cavity is fixedly mounted on the positioning plate. An air outlet is located at the top of the positioning plate. An adapter block is fixedly mounted on the top of the positioning plate. Sensor wiring is fixedly mounted on the top of the adapter block. The bottom of the sensor wiring is electrically connected to a humidity detector, which is fixedly mounted on the bottom of the positioning plate. The sensor wiring is electrically connected to the humidity detector and a control module, responsible for transmitting the humidity signal detected by the humidity detector to the control module. The core detection component of the humidity detector is used to detect the humidity of the soil and convert the humidity information into an electrical signal, which is then transmitted to the control module through the sensor circuit.

[0007] Optionally, the first-section, second-section, and third-section telescopic components further include a spring, a positioning ring, a slider, an eccentric rod, a first longitudinal slide groove, a transverse slide groove, and a second longitudinal slide groove. The spring is fixedly connected to the bottom of the base, and a positioning ring is fixedly connected to the bottom of the spring. An eccentric rod is movably connected to the bottom of the positioning ring, and a slider is fixedly connected to one side of the eccentric rod. The first longitudinal slide groove is formed inside the main rod, and its bottom connects to the transverse slide groove. One side of the transverse slide groove connects to the second longitudinal slide groove. The eccentric rod moves within an eccentric hole at the top of the main rod, cooperating with the slider and slide groove to realize the telescopic function of the telescopic component. Simultaneously, its eccentric structure may be used to achieve some special motion or positioning functions.

[0008] Optionally, the transverse slide is connected to the center of the second longitudinal slide, and the length of the second longitudinal slide is equal to the height of the spring.

[0009] Optionally, the slider is movably connected inside the first longitudinal slide groove, the transverse slide groove, and the second longitudinal slide groove, and the eccentric rod is movably sleeved inside the eccentric hole at the top of the main rod.

[0010] Optionally, the humidity detector is electrically connected to the control module via sensor wiring, and the distance from the positioning plate to the bottom of the main rod is equal to the height of the humidity detector.

[0011] Optionally, the positioning ring is movably fitted inside the eccentric hole at the top of the main rod, and the length of the first longitudinal groove is equal to the extension length of the eccentric rod.

[0012] Optionally, the three-section telescopic assembly is located inside the two-section telescopic assembly, the two-section telescopic assembly is located inside the one-section telescopic assembly, and the humidity detectors inside the one-section, two-section, and three-section telescopic assemblies are all electrically connected to the control module.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model, through its sensor assembly including a humidity detector, enables precise detection of soil moisture, providing accurate data support for agricultural production and scientific research. It facilitates understanding of soil moisture conditions, allowing for appropriate irrigation and other measures. Integrating the humidity detector and other components into a complete detection system effectively improves detection efficiency and reliability, avoiding compatibility issues that may arise from multiple independent components. Composed of a first-section, second-section, and third-section telescopic assembly, it can be adjusted to accommodate different soil depths, adapting to various soil environments and detection scenarios, thus enhancing the device's versatility and flexibility.

[0015] 2. This utility model uses a main rod fixed to the bottom of the base, and with the assistance of positioning plates and other components, it maintains a stable position of the sensor assembly in the soil, ensuring the accuracy and stability of the detection data and preventing easy shaking or displacement due to external interference. The design of the sensor wiring ensures the power supply and signal transmission of components such as the humidity detector, and its reasonable arrangement avoids problems such as malfunctions that may be caused by messy wiring. This modular design facilitates targeted repair or replacement when a component fails, reducing maintenance costs and difficulty. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device in the embodiments of this application;

[0017] Figure 2 This is a schematic diagram of a partial structure of the device in an embodiment of this application;

[0018] Figure 3 This is a partial structural diagram of the sensor assembly in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the partial structure installation of the sensor assembly in an embodiment of this application.

[0020] Reference numerals: 1. Control module; 2. Base; 3. Sensor assembly; 31. First-stage telescopic assembly; 32. Second-stage telescopic assembly; 33. Third-stage telescopic assembly; 301. Main rod; 302. Detection rod body; 303. Air outlet cavity; 304. Positioning plate; 305. Air outlet; 306. Adapter block; 307. Sensor circuit; 308. Humidity detector; 309. Detection rod mounting hole; 310. Spring; 311. Positioning ring; 312. Slider; 313. Eccentric rod; 314. First longitudinal slide groove; 315. Transverse slide groove; 316. Second longitudinal slide groove. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0022] This application discloses an integrated device for a soil moisture sensor.

[0023] Please see Figure 1 A soil moisture sensor integrated device includes a control module 1, a base 2 fixedly installed on one side of the control module 1, and a sensor assembly 3 disposed on one side of the base 2.

[0024] Please see Figures 2 to 4 Sensor assembly 3 includes a first telescopic assembly 31, a second telescopic assembly 32, and a third telescopic assembly 33. Each of these three assemblies includes a main rod 301, a detection rod body 302, an air outlet cavity 303, a positioning plate 304, an air outlet 305, an adapter block 306, sensor wiring 307, a humidity detector 308, and a detection rod mounting hole 309. The main rod 301 is fixedly installed at the bottom of the base 2, and the top of the main rod 301 has a through-hole 309 for the detection rod mounting hole. An eccentric hole is also provided through the detection rod. The detection rod body 302 is fixedly installed inside the detection rod mounting hole 309. An air outlet cavity 303 is provided inside the detection rod body 302. A positioning plate 304 is fixedly installed at the bottom of the air outlet cavity 303. An air outlet 305 is provided through the top of the positioning plate 304. An adapter block 306 is fixedly installed at the top of the positioning plate 304. A sensor circuit 307 is fixedly installed at the top of the adapter block 306. A humidity detector 308 is electrically connected to the bottom of the sensor circuit 307. The humidity detector 308 is fixedly installed at the bottom of the positioning plate 304.

[0025] Please see Figures 2 to 4The first telescopic assembly 31, the second telescopic assembly 32, and the third telescopic assembly 33 also include a spring 310, a positioning ring 311, a slider 312, an eccentric rod 313, a first longitudinal slide groove 314, a transverse slide groove 315, and a second longitudinal slide groove 316. The spring 310 is fixedly connected to the bottom of the base 2. The bottom of the spring 310 is fixedly connected to the positioning ring 311. The bottom of the positioning ring 311 is movably connected to the eccentric rod 313. The slider 312 is fixedly connected to one side of the eccentric rod 313. The first longitudinal slide groove 314 is opened inside the main rod 301. The bottom of the first longitudinal slide groove 314 is connected to the transverse slide groove 315. One side of the transverse slide groove 315 is connected to the second longitudinal slide groove 316.

[0026] The transverse slide 315 is connected to the center of the second longitudinal slide 316, and the length of the second longitudinal slide 316 is equal to the height of the spring 310.

[0027] The slider 312 is movably connected inside the first longitudinal slide groove 314, the transverse slide groove 315 and the second longitudinal slide groove 316, and the eccentric rod 313 is movably sleeved inside the eccentric hole at the top of the main rod 301.

[0028] The humidity detector 308 is electrically connected to the control module 1 through the sensor line 307. The distance from the positioning plate 304 to the bottom of the main rod 301 is equal to the height of the humidity detector 308.

[0029] The positioning ring 311 is movably sleeved inside the eccentric hole at the top of the main rod 301, and the length of the first longitudinal groove 314 is equal to the extension length of the eccentric rod 313.

[0030] The three-section telescopic assembly 33 is located inside the two-section telescopic assembly 32, which is located inside the one-section telescopic assembly 31. The humidity detectors 308 inside the one-section telescopic assembly 31, the two-section telescopic assembly 32, and the three-section telescopic assembly 33 are all electrically connected to the control module 1.

[0031] Further explanation is needed:

[0032] Firstly, at the detection function level, sensor component 3 is the core for achieving accurate soil moisture detection. Its internal moisture detector 308, as a key component directly sensing soil moisture, converts the moisture content in the soil into an electrical signal. The air outlet cavity 303, positioning plate 304, and air outlet 305 work together, employing a clever gas exchange design to allow the moisture detector 308 to more accurately sense water vapor in the soil. This ensures the accuracy and reliability of the detection data, providing a solid data foundation for subsequent analysis and decision-making.

[0033] Secondly, from the perspective of structural support and adaptation, the design of sensor assembly 3 is ingenious. The first telescopic assembly 31, the second telescopic assembly 32, and the third telescopic assembly 33 are nested together. Through the coordinated operation of spring 310, positioning ring 311, slider 312, eccentric rod 313, and the first longitudinal groove 314, transverse groove 315, and second longitudinal groove 316 on the main rod 301, adjustable telescopic functionality is achieved. This allows sensor assembly 3 to flexibly adapt to soil detection needs at different depths, accurately acquiring moisture information in both shallow and deep soil layers. Simultaneously, the main rod 301 is fixed to the bottom of the base 2, providing a stable support structure for the entire sensor assembly 3, ensuring smooth detection operations even in complex soil environments.

[0034] Finally, regarding data transmission and interaction, sensor line 307 acts as a bridge connecting humidity detector 308 and control module 1, rapidly and stably transmitting the detected humidity electrical signal to control module 1. Upon receiving the data, control module 1 can analyze and process it, thereby achieving real-time monitoring and assessment of soil moisture conditions, and even triggering corresponding control actions based on preset conditions, such as starting or stopping an automatic irrigation system. Sensor component 3 plays a crucial role in data acquisition and initial transmission throughout the entire data transmission and interaction process, and is an important link in realizing intelligent soil moisture monitoring and management.

[0035] The working principle of the above embodiments is as follows:

[0036] First, the control module 1 is fixedly connected to the base 2, completing the basic hardware assembly. As the core control unit of the entire device, the control module 1 undergoes initialization operations, such as self-testing and parameter calibration, to ensure its normal functioning and prepare for subsequent data reception and processing. Simultaneously, the sensor assembly 3 is installed on one side of the base 2, with the main rod 301 fixed to the bottom of the base 2, putting the entire sensor assembly 3 into a ready-to-operate state.

[0037] Secondly, the telescopic structure of sensor assembly 3 is used for adjustment according to the actual soil testing depth requirements. The first telescopic assembly 31, the second telescopic assembly 32, and the third telescopic assembly 33 achieve free extension and retraction through the coordinated action of spring 310, positioning ring 311, slider 312, eccentric rod 313, and the first longitudinal groove 314, transverse groove 315, and second longitudinal groove 316 on the main rod 301. Spring 310 provides the elastic force for extension and retraction, positioning ring 311 assists in the positioning and movement of eccentric rod 313, and slider 312 slides within the groove to guide eccentric rod 313 along a specific track, thereby extending the detection rod body 302 into the appropriate soil depth.

[0038] Next, once the detection rod body 302 reaches the designated soil depth, humidity detection begins. Water vapor in the soil enters the vent cavity 303 through the vent 305. The humidity detector 308 senses the water vapor content within the vent cavity 303 and converts it into an electrical signal. The positioning plate 304 not only separates and supports the vent cavity 303 but also ensures that the humidity detector 308 is in the correct position for stable detection. The adapter block 306 ensures a secure connection between the humidity detector 308 and the sensor circuitry 307.

[0039] Next, the humidity detector 308 transmits the converted electrical signal to the control module 1 through the sensor line 307. The sensor line 307, serving as the signal transmission channel, ensures stable and rapid data transmission, avoids signal interference and loss, and enables the control module 1 to accurately receive real-time soil moisture data.

[0040] Finally, control module 1 analyzes and processes the received humidity data, determining whether the soil moisture is within a suitable range based on preset programs and algorithms. These processing results can be used in various practical applications. For example, in agriculture, they can control the opening and closing of irrigation systems based on soil moisture conditions to achieve precision irrigation; the data can also be uploaded to a monitoring platform to provide researchers with research data, helping to analyze soil moisture change patterns and guide agricultural production and land resource management.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A soil moisture sensor integrated device, comprising a control module (1), characterized in that: A base (2) is fixedly installed on one side of the control module (1), and a sensor assembly (3) is provided on one side of the base (2); The sensor assembly (3) includes a first telescopic assembly (31), a second telescopic assembly (32), and a third telescopic assembly (33). Each of the first telescopic assembly (31), the second telescopic assembly (32), and the third telescopic assembly (33) includes a main rod (301), a detection rod body (302), an air outlet cavity (303), a positioning plate (304), an air outlet (305), an adapter block (306), a sensor circuit (307), a humidity detector (308), and a detection rod mounting hole (309). The main rod (301) is fixedly installed at the bottom of the base (2). The top of the main rod (301) has a through-hole (309) for the detection rod mounting hole. An eccentric hole is also provided through the top. The detection rod body (302) is fixedly installed inside the detection rod mounting hole (309). An air outlet cavity (303) is provided inside the detection rod body (302). A positioning plate (304) is fixedly installed at the bottom of the air outlet cavity (303). An air outlet hole (305) is provided through the top of the positioning plate (304). An adapter block (306) is fixedly installed at the top of the positioning plate (304). A sensor circuit (307) is fixedly installed at the top of the adapter block (306). A humidity detector (308) is electrically connected to the bottom of the sensor circuit (307). The humidity detector (308) is fixedly installed at the bottom of the positioning plate (304).

2. The integrated soil moisture sensor device according to claim 1, characterized in that: The first telescopic assembly (31), the second telescopic assembly (32), and the third telescopic assembly (33) further include a spring (310), a positioning ring (311), a slider (312), an eccentric rod (313), a first longitudinal slide groove (314), a transverse slide groove (315), and a second longitudinal slide groove (316). The spring (310) is fixedly connected to the bottom of the base (2). The bottom of the spring (310) is fixedly connected to the positioning ring (311). The bottom of the positioning ring (311) is movably connected to the eccentric rod (313). The slider (312) is fixedly connected to one side of the eccentric rod (313). The first longitudinal slide groove (314) is opened inside the main rod (301). The bottom of the first longitudinal slide groove (314) is connected to the transverse slide groove (315). One side of the transverse slide groove (315) is connected to the second longitudinal slide groove (316).

3. The integrated soil moisture sensor device according to claim 2, characterized in that: The transverse slide (315) is connected to the center of the second longitudinal slide (316), and the length of the second longitudinal slide (316) is equal to the height of the spring (310).

4. The integrated soil moisture sensor device according to claim 2, characterized in that: The slider (312) is movably connected inside the first longitudinal groove (314), the transverse groove (315), and the second longitudinal groove (316), and the eccentric rod (313) is movably sleeved inside the eccentric hole at the top of the main rod (301).

5. The integrated soil moisture sensor device according to claim 1, characterized in that: The humidity detector (308) is electrically connected to the control module (1) through the sensor line (307), and the distance from the positioning plate (304) to the bottom of the main rod (301) is equal to the height of the humidity detector (308).

6. The integrated soil moisture sensor device according to claim 2, characterized in that: The positioning ring (311) is movably sleeved inside the eccentric hole at the top of the main rod (301), and the length of the first longitudinal groove (314) is equal to the extension length of the eccentric rod (313).

7. The integrated soil moisture sensor device according to claim 1, characterized in that: The three-section telescopic assembly (33) is located inside the two-section telescopic assembly (32), and the two-section telescopic assembly (32) is located inside the one-section telescopic assembly (31). The humidity detectors (308) inside the one-section telescopic assembly (31), the two-section telescopic assembly (32) and the three-section telescopic assembly (33) are all electrically connected to the control module (1).