A device for detecting nutrients in crop leaves

By designing an automated crop leaf nutrient detection device, which utilizes an LED cold light source array and a multi-channel hyperspectral sensor for leaf nutrient detection, the problem of low detection efficiency in existing technologies has been solved, and efficient and automated monitoring of crop leaf nutrients has been achieved.

CN224354311UActive Publication Date: 2026-06-12CHINA TOBACCO GUANGXI IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO GUANGXI IND
Filing Date
2025-07-31
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Current technologies for detecting nutrient levels in crop leaves rely on manual collection, which is inefficient and makes it difficult to achieve batch and real-time monitoring, thus failing to meet the needs for rapid monitoring of large areas of farmland.

Method used

Design an automated inspection device that includes a walking mechanism, a robotic arm mechanism, and an inspection mechanism. Utilize an LED cold light source array and a multi-channel hyperspectral sensor for leaf nutrient detection. Combine this with a controller, camera, and microphone array for assisted positioning and navigation. Employ wireless charging and solar power to achieve autonomous movement and inspection of the device.

Benefits of technology

It enables automated detection of nutrients in crop leaves, reduces manual intervention, improves detection efficiency, meets the needs of rapid monitoring of large areas of farmland, and the device has autonomous navigation and continuous operation capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to agricultural automation equipment technical field, concretely disclose a kind of detection device for crop leaf nutrient, the detection device for crop leaf nutrient includes walking mechanism, mechanical arm mechanism, detection mechanism and warehouse mechanism.Working, first pass through walking mechanism and drive mechanical arm mechanism and detection mechanism reach the crop near in farmland, then utilize mechanical arm mechanism and drive detection mechanism to move to preset position, to make detection mechanism to the nutrient of crop leaf detection, and further realize the purpose of detecting crop leaf nutrient, after detection, walking mechanism returns to in warehouse mechanism, and the protection of walking mechanism, mechanical arm mechanism and detection mechanism is carried out by warehouse mechanism.Utilize the detection device for crop leaf nutrient of the utility model, without through artificial collection leaf sample and in laboratory analysis, effectively solve the detection of farmland crop leaf nutrient in prior art, the problem of low detection efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural automation equipment technology, and in particular to a device for detecting nutrients in crop leaves. Background Technology

[0002] Currently, nutrient detection in crop leaves in farmland mainly relies on manual collection of leaf samples and analysis in laboratories. This method suffers from high reliance on manual labor, low detection efficiency, and difficulty in achieving batch and real-time monitoring. Furthermore, traditional detection methods are time-consuming and labor-intensive, failing to meet the needs of rapid monitoring in large-scale farmland. Therefore, there is an urgent need for an automated and efficient field crop leaf nutrient detection device to improve the efficiency of farmland nutrient monitoring. Utility Model Content

[0003] The purpose of this invention is to provide a device for detecting nutrients in crop leaves, thereby solving the problem of low detection efficiency in the existing technology for detecting nutrients in crop leaves.

[0004] To address the aforementioned problems, this utility model provides a device for detecting nutrient content in crop leaves. The device includes: a walking mechanism capable of stable movement in farmland; a robotic arm mechanism movably mounted on the walking mechanism; a detection mechanism installed on the robotic arm mechanism, which can move the detection mechanism to a preset position to detect the nutrient content of the crop leaves; and a storage mechanism capable of accommodating the walking mechanism, the robotic arm mechanism, and the detection mechanism.

[0005] As an optional technical solution for a nutrient detection device for crop leaves, the detection mechanism includes a detection component, an LED cold light source array, and a multi-channel hyperspectral sensor. The detection component is mounted on the robotic arm mechanism and has a detection cavity for accommodating crop leaves. The LED cold light source array is located above the detection cavity, and the multi-channel hyperspectral sensor is located below the detection cavity and corresponds to the LED cold light source array. The LED cold light source array can generate a broadband light source to illuminate the crop leaves located in the detection cavity, and the multi-channel hyperspectral sensor can receive and analyze the spectral signals transmitted by the crop leaves.

[0006] As an optional technical solution for a device for detecting nutrients in crop leaves, the detection component includes a first detection block and a second detection block, which are vertically spaced on the robotic arm mechanism, forming the detection cavity between the first detection block and the second detection block. The LED cold light source array is disposed on the first detection block, and the multi-channel hyperspectral sensor is disposed on the second detection block.

[0007] As an optional technical solution for a device for detecting nutrients in crop leaves, the device for detecting nutrients in crop leaves also includes a controller, and the walking mechanism, the robotic arm mechanism and the detection mechanism are all communicatively connected to the controller.

[0008] As an optional technical solution for a device for detecting nutrients in crop leaves, the device for detecting nutrients in crop leaves also includes a camera and a microphone array mounted on the robotic arm mechanism. Both the camera and the microphone array are communicatively connected to the controller. The camera is capable of image recognition, and the microphone array is capable of assisted positioning.

[0009] As an optional technical solution for a device for detecting nutrients in crop leaves, the warehouse structure includes a warehouse body and an environmental monitoring module installed on the warehouse body. The environmental monitoring module is communicatively connected to the controller. The controller receives environmental signals detected by the environmental monitoring module to control the operation of the walking mechanism, the robotic arm mechanism, and the detection mechanism. The warehouse body can accommodate the walking mechanism, the robotic arm mechanism, and the detection mechanism.

[0010] As an optional technical solution for a device for detecting nutrients in crop leaves, the warehouse mechanism also includes an ultrasonic transmitter installed on the warehouse body. The ultrasonic transmitter is communicatively connected to the controller, and the controller receives positioning signals provided by the ultrasonic transmitter to control the operation of the walking mechanism.

[0011] As an optional technical solution for a device for detecting nutrients in crop leaves, the warehouse mechanism also includes a wireless charging transmitting coil disposed within the warehouse body, and the walking mechanism has a wireless charging receiving coil. The wireless charging transmitting coil can be connected to the wireless charging receiving coil to charge the walking mechanism.

[0012] As an optional technical solution for a device for detecting nutrient content in crop leaves, the walking mechanism includes a tracked mobile chassis and a battery and a communication and positioning module mounted on the tracked mobile chassis. The wireless charging receiving coil is located at the bottom of the tracked mobile chassis and can power the battery, which in turn can power the tracked mobile chassis. The communication and positioning module is communicatively connected to the controller and can position the tracked mobile chassis and transmit signals detected by the detection mechanism.

[0013] As an optional technical solution for a device for detecting nutrients in crop leaves, the warehouse structure also includes an electric door installed on the warehouse body, which can protect the walking mechanism, the robotic arm mechanism and the detection mechanism inside the warehouse body.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention provides a device for detecting nutrient content in crop leaves. The device includes a walking mechanism, a robotic arm mechanism, a detection mechanism, and a storage mechanism. In operation, the walking mechanism first moves the robotic arm and detection mechanism to the vicinity of the crops in the field. Then, the robotic arm mechanism moves the detection mechanism to a preset position, allowing it to detect the nutrients in the crop leaves. After detection, the walking mechanism returns to the storage mechanism, which protects the walking mechanism, robotic arm mechanism, and detection mechanism. This invention eliminates the need for manual leaf sample collection and laboratory analysis, effectively solving the problem of low detection efficiency in existing crop leaf nutrient detection technologies. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the walking mechanism, robotic arm mechanism, and detection mechanism in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the robotic arm mechanism and the detection mechanism in the embodiments of this utility model;

[0018] Figure 3 This is a schematic diagram of the warehouse mechanism in an embodiment of the present utility model.

[0019] In the picture:

[0020] 1. Walking mechanism; 11. Tracked mobile chassis; 12. Battery; 13. Communication and positioning module; 14. Wireless charging receiver coil;

[0021] 2. Robotic arm mechanism;

[0022] 3. Testing mechanism; 31. Testing components; 311. Testing chamber; 312. First testing block; 313. Second testing block; 32. LED cold light source array; 33. Multi-channel hyperspectral sensor;

[0023] 4. Warehouse structure; 41. Warehouse body; 42. Environmental monitoring module; 43. Ultrasonic transmitter; 44. Wireless charging transmitting coil; 45. Electric door; 46. Solar panel bracket; 47. Solar panel;

[0024] 5. Camera;

[0025] 6. Microphone array. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] like Figures 1 to 3 As shown, this embodiment provides a device for detecting nutrients in crop leaves. The device includes a walking mechanism 1, a robotic arm mechanism 2, a detection mechanism 3, and a storage mechanism 4. The walking mechanism 1 can move smoothly across farmland; the robotic arm mechanism 2 is movably mounted on the walking mechanism 1; the detection mechanism 3 is mounted on the robotic arm mechanism 2, and the robotic arm mechanism 2 can move the detection mechanism 3 to a preset position so that the detection mechanism 3 can detect the nutrients in the crop leaves; the storage mechanism 4 can accommodate the walking mechanism 1, the robotic arm mechanism 2, and the detection mechanism 3.

[0031] The nutrient detection device for crop leaves of this invention operates by first using a walking mechanism 1 to move a robotic arm mechanism 2 and a detection mechanism 3 to the vicinity of crops in a field. Then, the robotic arm mechanism 2 moves the detection mechanism 3 to a preset position, allowing it to detect the nutrients in the crop leaves. After the detection is complete, the walking mechanism 1 returns to a storage mechanism 4, which protects the walking mechanism 1, robotic arm mechanism 2, and detection mechanism 3. This nutrient detection device for crop leaves eliminates the need for manual leaf sample collection and laboratory analysis, effectively solving the problem of low detection efficiency in existing technologies for nutrient detection in crop leaves.

[0032] In some embodiments, the detection mechanism 3 includes a detection component 31, an LED (light-emitting diode) cold light source array 32, and a multi-channel hyperspectral sensor 33. The detection component 31 is mounted on the robotic arm mechanism 2 and has a detection cavity 311 for accommodating crop leaves. The LED cold light source array 32 is located above the detection cavity 311, and the multi-channel hyperspectral sensor 33 is located below the detection cavity 311, corresponding to the LED cold light source array 32. The LED cold light source array 32 generates a broadband light source to illuminate the crop leaves within the detection cavity 311, and the multi-channel hyperspectral sensor 33 receives and analyzes the spectral signals transmitted through the crop leaves. With this configuration, the broadband light source generated by the LED cold light source array 32 from above the detection cavity 311 illuminates and penetrates the leaves. The multi-channel hyperspectral sensor 33, located below, receives the leaf transmission spectral data, thereby analyzing the nitrogen and chlorophyll content in the leaves based on a preset spectral analysis algorithm.

[0033] In this embodiment, as Figure 1 and Figure 2 As shown, the detection component 31 includes a first detection block 312 and a second detection block 313. The first detection block 312 and the second detection block 313 are vertically spaced on the robotic arm mechanism 2, facilitating the formation of a detection cavity 311 between them. An LED cold light source array 32 is mounted on the first detection block 312, and a multi-channel hyperspectral sensor 33 is mounted on the second detection block 313, thereby achieving the purpose of detecting and analyzing crop leaves using the LED cold light source array 32 and the multi-channel hyperspectral sensor 33.

[0034] In some embodiments, the device for detecting nutrient content in crop leaves further includes a controller. The walking mechanism 1, the robotic arm mechanism 2, and the detection mechanism 3 are all communicatively connected to the controller, which controls the operation of the walking mechanism 1, the robotic arm mechanism 2, and the detection mechanism 3. This allows the controller to control the walking mechanism 1 to move to a designated position, while simultaneously controlling the robotic arm mechanism 2 to move the detection mechanism 3 to a preset position. This enables the detection mechanism 3 to detect the nutrient content of the crop leaves. The controller can transmit the detected signals to an analysis system, which analyzes the nitrogen and chlorophyll content of the crop leaves based on a preset spectral analysis algorithm.

[0035] Furthermore, the device for detecting nutrient content in crop leaves also includes a camera 5 and a microphone array 6 mounted on the robotic arm mechanism 2. Both the camera 5 and the microphone array 6 are communicatively connected to the controller. The camera 5 is capable of image recognition, and the microphone array 6 is capable of assisted positioning. With this configuration, the device can autonomously navigate to the target field area along a set path with the assistance of the camera 5. At the same time, the microphone array 6 provides assisted positioning, making the path navigation more accurate.

[0036] In some embodiments, the warehouse mechanism 4 includes a warehouse body 41 and an environmental monitoring module 42 mounted on the warehouse body 41. The environmental monitoring module 42 is communicatively connected to a controller. The controller receives environmental signals detected by the environmental monitoring module 42, thereby controlling the operation of the walking mechanism 1, the robotic arm mechanism 2, and the detection mechanism 3. The warehouse body 41 can accommodate the walking mechanism 1, the robotic arm mechanism 2, and the detection mechanism 3. This configuration allows the environmental monitoring module 42 to monitor external temperature, humidity, and rainfall in real time. When environmental parameters meet preset operating conditions, the controller initiates the operation process for the walking mechanism 1, the robotic arm mechanism 2, and the detection mechanism 3.

[0037] Specifically, the warehouse mechanism 4 also includes an ultrasonic transmitter 43 installed on the warehouse body 41. The ultrasonic transmitter 43 is connected to the controller and receives the positioning signal provided by the ultrasonic transmitter 43 through the controller. Then the controller controls the walking mechanism 1 to return to the warehouse body 41, which further improves the intelligence level of the device for detecting nutrients in crop leaves.

[0038] In some embodiments, the warehouse mechanism 4 further includes a wireless charging transmitting coil 44 disposed in the warehouse body 41, and the walking mechanism 1 has a wireless charging receiving coil 14. The wireless charging transmitting coil 44 can be connected to the wireless charging receiving coil 14, so that the walking mechanism 1 can be charged in time.

[0039] In this embodiment, the walking mechanism 1 includes a tracked mobile chassis 11, a battery 12, and a communication and positioning module 13 mounted on the tracked mobile chassis 11. A wireless charging receiving coil 14 is located at the bottom of the tracked mobile chassis 11, providing power to the battery 12, which in turn powers the tracked mobile chassis 11, ensuring its power supply. The communication and positioning module 13 is connected to the controller, allowing it to locate the tracked mobile chassis 11 in real time. It also transmits signals detected by the detection mechanism 3 for analysis.

[0040] In some embodiments, the warehouse mechanism 4 further includes an electric door 45 disposed on the warehouse body 41, wherein the electric door 45 can be opened and closed automatically, thereby providing shelter and protection for the walking mechanism 1, the robotic arm mechanism 2 and the detection mechanism 3 within the warehouse body 41.

[0041] Optionally, the device for detecting nutrients in crop leaves also includes a solar panel bracket 46 mounted on the warehouse body 41 and a solar panel 47 mounted on the solar panel bracket 46, the solar panel 47 being able to power the wireless charging transmitting coil 44.

[0042] The working process of this utility model is as follows:

[0043] In operation, the environmental monitoring module 42 first monitors the external temperature, humidity, and rainfall in real time. When the environmental parameters meet the preset operating conditions, the controller controls the tracked mobile chassis 11 to move and initiates the operation process. The solar panels 47 installed on the top of the warehouse body 41 can capture light energy to provide auxiliary power for the internal systems and batteries 12.

[0044] After the detection device for crop leaf nutrients leaves the warehouse body 41, the communication and positioning module 13 guides the detection device to identify its location and navigate forward. At the same time, with the assistance of the camera 5, it autonomously navigates along the set path to the target field area.

[0045] Upon reaching the target area, the controller drives the robotic arm mechanism 2 to operate, and with the assistance of the camera 5, delivers the target crop leaf into the detection chamber 311 of the detection mechanism 3. At this time, the LED cold light source array 32 generates a broadband light source from above, which illuminates and penetrates the leaf. The multi-channel hyperspectral sensor 33 located below receives the leaf's transmission spectrum data and uploads it to the cloud analysis system via the communication positioning module 13. The cloud analysis system analyzes the content of nitrogen and chlorophyll based on a preset spectral analysis algorithm.

[0046] After the inspection is completed, the robotic arm mechanism 2 automatically resets, and the ultrasonic transmitter 43 deployed on the warehouse body 41 continuously emits positioning signals. The device for detecting crop leaf nutrients is driven by the tracked mobile chassis 11 to return. First, it returns to the vicinity of the warehouse body 41 based on the navigation information provided by the communication positioning module 13. Then, the device uses the camera 5 for image recognition and combines the positioning information provided by the ultrasonic transmitter 43 to correct its route and accurately enter the warehouse body 41. After the device for detecting crop leaf nutrients enters the warehouse body 41, the built-in wireless charging receiving coil 14 automatically aligns and connects with the wireless charging transmitting coil 44 of the warehouse body 41, entering charging mode. During charging, the electric door 45 provides shielding protection. After the battery 12 is fully charged, the device for detecting crop leaf nutrients enters standby mode, ready to perform the next round of inspection tasks.

[0047] Through the above embodiments, the detection device for crop leaf nutrients of this utility model can realize the automated detection of crop leaf nutrients in the field, reduce manual intervention, improve detection efficiency, and ensure the continuous operation and reliable work of the equipment through wireless charging and solar-assisted power supply.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for detecting nutrients in crop leaves, characterized in that, include: The walking mechanism (1) is able to move smoothly in farmland; A robotic arm mechanism (2) is movably mounted on the walking mechanism (1); The detection mechanism (3) is installed on the robotic arm mechanism (2). The robotic arm mechanism (2) can drive the detection mechanism (3) to move to a preset position so that the detection mechanism (3) can detect the nutrients in the crop leaves. The warehouse mechanism (4) is capable of accommodating the walking mechanism (1), the robotic arm mechanism (2), and the detection mechanism (3).

2. The device for detecting nutrients in crop leaves according to claim 1, characterized in that, The detection mechanism (3) includes a detection component (31), an LED cold light source array (32), and a multi-channel hyperspectral sensor (33). The detection component (31) is mounted on the robotic arm mechanism (2). The detection component (31) has a detection cavity (311) for accommodating crop leaves. The LED cold light source array (32) is located above the detection cavity (311), and the multi-channel hyperspectral sensor (33) is located below the detection cavity (311) and corresponds to the LED cold light source array (32). The LED cold light source array (32) can generate a broadband light source to illuminate the crop leaves located in the detection cavity (311). The multi-channel hyperspectral sensor (33) can receive and analyze the spectral signals transmitted by the crop leaves.

3. The device for detecting nutrients in crop leaves according to claim 2, characterized in that, The detection component (31) includes a first detection block (312) and a second detection block (313). The first detection block (312) and the second detection block (313) are arranged vertically at intervals on the robotic arm mechanism (2). The detection cavity (311) is formed between the first detection block (312) and the second detection block (313). The LED cold light source array (32) is arranged on the first detection block (312), and the multi-channel hyperspectral sensor (33) is arranged on the second detection block (313).

4. The device for detecting nutrients in crop leaves according to claim 1, characterized in that, The device for detecting nutrients in crop leaves also includes a controller, and the walking mechanism (1), the robotic arm mechanism (2) and the detection mechanism (3) are all communicatively connected to the controller.

5. The device for detecting nutrients in crop leaves according to claim 4, characterized in that, The device for detecting nutrients in crop leaves also includes a camera (5) and a microphone array (6) mounted on the robotic arm mechanism (2). Both the camera (5) and the microphone array (6) are connected to the controller. The camera (5) is capable of image recognition, and the microphone array (6) is capable of assisted positioning.

6. The device for detecting nutrients in crop leaves according to claim 4, characterized in that, The warehouse mechanism (4) includes a warehouse body (41) and an environmental monitoring module (42) installed on the warehouse body (41). The environmental monitoring module (42) is communicatively connected to the controller. The controller receives environmental signals detected by the environmental monitoring module (42) to control the operation of the walking mechanism (1), the robotic arm mechanism (2), and the detection mechanism (3). The warehouse body (41) can accommodate the walking mechanism (1), the robotic arm mechanism (2), and the detection mechanism (3).

7. The device for detecting nutrients in crop leaves according to claim 6, characterized in that, The warehouse mechanism (4) also includes an ultrasonic transmitter (43) installed on the warehouse body (41). The ultrasonic transmitter (43) is communicatively connected to the controller. The controller receives the positioning signal provided by the ultrasonic transmitter (43) to control the operation of the walking mechanism (1).

8. The device for detecting nutrients in crop leaves according to claim 6, characterized in that, The warehouse mechanism (4) also includes a wireless charging transmitting coil (44) disposed in the warehouse body (41), and the walking mechanism (1) has a wireless charging receiving coil (14). The wireless charging transmitting coil (44) can be connected to the wireless charging receiving coil (14) to charge the walking mechanism (1).

9. The device for detecting nutrients in crop leaves according to claim 8, characterized in that, The walking mechanism (1) includes a tracked mobile chassis (11) and a battery (12) and a communication positioning module (13) mounted on the tracked mobile chassis (11). The wireless charging receiving coil (14) is located at the bottom of the tracked mobile chassis (11). The wireless charging receiving coil (14) can power the battery (12), and the battery (12) can power the tracked mobile chassis (11). The communication positioning module (13) is connected to the controller. The communication positioning module (13) can position the tracked mobile chassis (11) and transmit the signals detected by the detection mechanism (3).

10. The device for detecting nutrients in crop leaves according to claim 6, characterized in that, The warehouse mechanism (4) also includes an electric door (45) installed on the warehouse body (41), which can protect the walking mechanism (1), the robotic arm mechanism (2) and the detection mechanism (3) inside the warehouse body (41).