Method for prolonging endurance of agricultural unmanned aerial vehicle and detection of supply pile
By setting up detection and refueling stations in farmland and utilizing LIBS analysis components and information processing modules, precise refueling and charging of agricultural drones can be achieved, solving the problem of excessive load on agricultural drones and improving endurance and operational efficiency.
Patent Information
- Application Number
- CN202410936248.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2044-07-12
AI Technical Summary
Agricultural drones are too heavy when carrying water or pesticides, which affects their flight time. Furthermore, existing technologies make it difficult to achieve targeted and efficient precision irrigation or pesticide spraying.
Testing and refueling stations are set up in farmland. The LIBS analysis component is used to detect the soil condition. The information processing module controls the drone to carry an appropriate amount of water or pesticide. The refueling station is equipped with a water pump and a wireless charger to achieve precise refueling and charging.
Reduce drone flight load, improve endurance, enable targeted precision irrigation and pesticide spraying, improve operational efficiency, and reduce soil damage caused by human inspection.
Smart Images

Figure CN118877206B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of agricultural technology, specifically to a method for improving the endurance of agricultural drones and a testing and resupply station. Background Technology
[0002] With the development of modern agricultural technology, agricultural drones are being used more and more widely in agriculture. They are frequently needed to carry water or pesticides to target areas for spraying. To irrigate or spray pesticides over larger areas of farmland, they need to carry even more water or pesticides, resulting in a heavy load on the drones and affecting their range. Therefore, it is necessary to design a method that can reduce the drone's load without affecting irrigation or pesticide spraying. Summary of the Invention
[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a method to improve the endurance of agricultural drones, as detailed below.
[0004] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a method for improving the battery life of agricultural drones, comprising the following steps: Step 1: Set up detection and supply piles in the farmland; Step 2: Regularly monitor and analyze the soil conditions at the location using the testing and replenishment piles; Step 3: Send the soil analysis results to the processing terminal by detecting the replenishment piles; Step 4: Based on the analysis results, the terminal controls the agricultural drone to carry the water tank or pesticide concentrate to the detection and resupply station in the target area; Step 5: The agricultural drone lands on the detection and supply station in the target area. The detection and supply station detects the weight of the drone. If the total weight of the drone is less than the maximum takeoff weight or the set value, the detection and supply station will replenish water to the drone's water tank.
[0005] Step 6: After completing the above steps, fly to the target area to carry out the operation.
[0006] Preferably, 15-20 detection and replenishment posts are set up for every 20 acres.
[0007] Preferably, a LIBS analysis component and an information processing module are installed inside the detection and replenishment pile. The soil condition is detected by laser-induced breakdown spectroscopy (LIBS) soil analysis technology, and the soil condition is sent to the terminal through the information processing module.
[0008] Preferably, if water shortage is detected in the area where the supply station is located in step 3, the agricultural drone will only carry an empty water tank; if pest problems are detected in the area, the water tank of the agricultural drone will only carry pesticide concentrate; if nutrient deficiency is detected, the water tank of the agricultural drone will only carry the corresponding fertilizer concentrate.
[0009] Preferably, the detection and replenishment pile is partially inserted into the soil.
[0010] This method involves first testing and analyzing the soil, and then the drone performs its operations based on the results. This makes the operation more targeted and avoids spraying or irrigating areas that do not require it. In addition, the drone is not fully loaded when flying to the refueling station, which reduces power consumption during flight. Water is then added at the refueling station, ultimately enabling the agricultural drone to replenish water or dilute pesticides and fertilizers before returning to the target area. Because power is saved during the journey, the actual flight time of the agricultural drone is longer, increasing the operating range and improving operational efficiency.
[0011] A detection and recharge pile includes a pile body partially inserted into the soil. A pressure sensor for sensing the weight of an agricultural drone is installed at the top of the pile body. A water pump for recharging the agricultural drone is installed inside the pile body and is connected to groundwater. A LIBS (Laser-Induced Breakdown Spectroscopy) analysis component for detecting soil conditions is installed inside the pile body. An information processing module is also installed inside the pile body to transmit data detected by the LIBS analysis component. A power module connected to an external power source is installed inside the pile body. The water pump and the LIBS analysis component are both electrically fused to the power module, which provides power to both the water pump and the LIBS analysis component.
[0012] In the above technical solution: First, the LIBS analysis component is used to conduct a detailed analysis of the farmland area, and the analyzed data is quickly transmitted to the information processing module. Subsequently, the data processing module integrates this data, transforms it into easily understandable detection results, and transmits them to the terminal in real time. Once the terminal receives the detection results, it will quickly assess and react, dispatching a suitable drone carrying the corresponding pesticide or fertilizer concentrate to accurately fly to the target farmland area. When the agricultural drone lands steadily on the corresponding detection and replenishment pile, its built-in pressure sensor will immediately activate, accurately measuring the drone's current weight and feeding this crucial information back to the information processing module. The information processing module will carefully analyze the received agricultural drone weight data. If the detection results show that the agricultural drone's weight is lower than a preset value or has not reached its maximum load capacity, the module will quickly activate a water pump to extract clean water from underground to replenish the agricultural drone's water tank and dilute the pesticide or fertilizer concentrate. At this time, the pressure sensor will also monitor the agricultural drone's weight changes in real time to ensure that the replenished water source is accurate and appropriate. Once the agricultural drone reaches its preset final weight, the information processing module will immediately issue a command to stop the water pump. At this point, the agricultural drone is fully loaded with water and pesticides or fertilizers, ready to fly to the target farmland area for precise irrigation, pesticide spraying, or fertilizer application, thereby ensuring the healthy growth and high yield of the farmland.
[0013] Preferably, the LIBS analysis component includes a LIBS laser emitter, which is located at the top of the cavity inside the recharge pile. A reflector is also provided below the LIBS laser emitter, and the reflector is positioned below the soil level. A through slot for the laser to pass through is provided on the side of the recharge pile. The spectrometer is positioned in the path of the laser emitted by the LIBS laser emitter.
[0014] Preferably, the recharge pile is further equipped with a lift inside the pile body, the reflector is connected to the lift, and the lift is also connected to a soil cutting blade.
[0015] Preferably, the soil cutting blade includes an upper blade and a lower blade, and the reflector is located between the upper blade and the lower blade.
[0016] Preferably, the reflector is connected to a condenser lens, the elevator is connected to a platform, and the platform is located at the focusing point of the condenser lens.
[0017] Preferably, the supply pile is also equipped with a wireless charger, which is used to charge agricultural drones.
[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. It can reduce the load on agricultural drones when flying to farmland, thereby reducing the power consumption of agricultural drones and improving their endurance.
[0019] 2. Agricultural drones can irrigate or spray pesticides based on the analysis results, which is more targeted and efficient than large-area irrigation or pesticide spraying.
[0020] 3. The testing and replenishment pile is equipped with a LIBS analysis component, which can accurately analyze soil conditions and ensure the accuracy of agricultural drone irrigation or pesticide spraying.
[0021] 4. The testing and resupply station is also equipped with a wireless charger, which can charge agricultural drones, thereby further improving the drones' endurance.
[0022] 5. This method avoids soil damage caused by repeated soil turning during manual inspections, reducing the number of times personnel need to go out and the resulting manpower consumption. It also avoids the need for agricultural drones to return for resupply due to insufficient power or water supply, thus improving operational efficiency. Attached Figure Description
[0023] Figure 1 This is a diagram illustrating the steps of irrigation methods for testing farmland. Figure 2 This is a schematic diagram of the overall structure of the testing and replenishment pile. Figure 3 This is a schematic diagram of the internal structure of the inspection and replenishment pile. Figure 4 This is a magnified view of a portion of the internal structure of the inspection and replenishment pile.
[0024] The annotations in the attached figures are explained as follows: 1. Supply pile detection, 11. Supply pile body, 12. Pressure sensor, 13. Wireless charger, 14. Lift, 15. Soil cutting blade, 151. Upper blade, 152. Lower blade, 16. Platform, 17. Through channel, 2. Water pump, 4. Power module, 5. LIBS analysis component, 51. LIBS laser emitter, 52. Mirror, 53. Condenser, 54. Spectrometer, 55. Laser path, 6. Information processing module. Detailed Implementation
[0025] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.
[0026] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0027] The technical solution of the present invention will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example 1 like Figure 1 As shown, a method for detecting irrigation in farmland includes the following steps: Step 1: Set up a detection and supply pile 1 in the farmland; Step 2: Regularly test and analyze the soil conditions at the location of the supply pile 1; Step 3: Send the soil analysis results to the processing terminal via the detection and replenishment pile 1; Step 4: Based on the analysis results, the terminal controls the agricultural drone to fly towards the detection and resupply pile 1 in the target area; Step 5: The agricultural drone lands on the detection and replenishment pile 1 in the target area. The detection and replenishment pile 1 detects the weight of the drone. If the total weight of the drone is less than the maximum takeoff weight, the detection and replenishment pile 1 replenishes water to the drone's water tank. Step 6: After completing the above steps, fly to the target area to irrigate or spray pesticides.
[0028] The beneficial effects of this embodiment are: by reducing the load of agricultural drones when flying to the target area, the power consumption is reduced, thereby further improving the endurance.
[0029] Example 2 A method for detecting irrigation in farmland, based on Example 1, differs from Example 1 in that... Furthermore, in step 1, 15-20 detection and supply piles 1 are set up for every 20 acres.
[0030] Furthermore, the detection and replenishment pile 1 is partially inserted into the soil.
[0031] Furthermore, a LIBS analysis component 5 and an information processing module 6 are installed inside the detection and replenishment pile. The soil condition is detected by laser-induced breakdown spectroscopy (LIBS) using the LIBS analysis component 5, and the detection and analysis results of the LIBS analysis component 5 are sent to the terminal by the information processing module 6.
[0032] Furthermore, if step 3 detects a water shortage in the area where the supply station is located, the agricultural drone will only carry an empty water tank; if a pest problem is detected in the area, the agricultural drone's water tank will only carry pesticide concentrate; if a nutrient deficiency is detected, the agricultural drone's water tank will only carry the corresponding fertilizer concentrate.
[0033] The soil condition of the test and replenishment pile 1 is detected by laser-induced breakdown spectroscopy soil analysis technology.
[0034] The rest is the same as in Example 1.
[0035] The beneficial effects of this embodiment are: by limiting the number of detection and replenishment piles, it is possible to avoid setting too many piles, which would increase costs, or setting too few piles, which would lead to inaccurate soil condition detection in the area. Partially inserting the detection and replenishment piles into the soil and using laser-induced breakdown spectroscopy (LIBS) soil analysis technology can effectively increase the accuracy of the detection and analysis.
[0036] Example 3 like Figure 2-4 As shown, a detection and replenishment pile 1 includes a pile body 11, which is partially inserted into the soil. A pressure sensor 12 for sensing the weight of an agricultural drone is installed at the top of the pile body 11. A water pump 2 for replenishing water to the agricultural drone is installed inside the pile body 11 and is connected to groundwater. A LIBS analysis component 3 for detecting soil conditions is installed inside the pile body 11. An information processing module 6 is also installed inside the pile body 11. The pressure sensor 12 and the water pump 2 are electrically connected to the information processing module 6, which also transmits the data detected by the LIBS analysis component 5 to a terminal. A power module 4 connected to an external power source is installed inside the pile body 11. The water pump 2 and the LIBS analysis component 3 are both electrically connected to the power module 4, which provides power to the water pump 2 and the LIBS analysis component 3.
[0037] The working principle of this embodiment is as follows: To ensure accurate management and efficient operation of farmland, detection and replenishment piles 1 are pre-installed in the farmland. These piles first utilize the LIBS analysis component 3 to perform a detailed analysis of the farmland area and quickly transmit the analyzed data to the information processing module 6. Subsequently, the data processing module 6 integrates this data, transforms it into easily understandable detection results, and transmits them to the terminal in real time.
[0038] Once the terminal receives the detection results, it will quickly assess and react, dispatching a suitable agricultural drone carrying the corresponding pesticide or fertilizer concentrate to accurately fly to the target farmland area. When the agricultural drone lands steadily on the corresponding detection and replenishment pile 1, its built-in pressure sensor 12 will immediately activate, accurately measuring the current weight of the agricultural drone and feeding this important information back to the information processing module 6. The information processing module 6 will carefully analyze the received weight data of the agricultural drone. If the detection results show that the weight of the agricultural drone is lower than the preset value or has not reached its maximum load capacity, the module will quickly start the water pump to draw clean water from the ground to replenish the water tank of the agricultural drone and dilute the pesticide or fertilizer concentrate. At this time, the pressure sensor will also monitor the weight change of the agricultural drone in real time to ensure that the replenished water source is accurate and appropriate. Once the overall weight of the agricultural drone reaches the preset final value, the information processing module 6 will immediately issue a command to control the water pump 2 to stop working. At this moment, agricultural drones are fully loaded with water and pesticides or fertilizers, ready to fly to the target farmland area to carry out precise irrigation, pesticide spraying or fertilizer application, thereby ensuring the healthy growth and efficient output of the farmland.
[0039] The beneficial effects of this technology include: replenishing the water tanks of agricultural drones that are empty or underloaded, thereby reducing the complexity of the drones flying to farmland, reducing power consumption, and further improving the endurance of agricultural drones.
[0040] Example 4 like Figure 2-4 As shown, another embodiment of the detection and replenishment pile is based on embodiment 3, with the main difference being: The LIBS analysis component 5 includes a LIBS laser emitter 51 and a spectrometer 54. The LIBS laser emitter 51 is located at the top of the inner cavity of the recharge pile body 11. A reflector 52 is also located below the LIBS laser emitter 51, and the reflector 52 is positioned below the soil level. A through slot 17 for the laser to pass through is provided on the side of the recharge pile body 11. The spectrometer 54 is located on the laser path 55 of the LIBS laser emitter 51.
[0041] Furthermore, a lifting platform 14 is also installed inside the pile body 11 of the replenishment pile. The reflector 52 is connected to the lifting platform 14, and the lifting platform 14 is also connected to a soil cutting blade 15.
[0042] Furthermore, the soil cutting blade 15 includes an upper blade 151 and a lower blade 152, with the reflector 52 located between the upper blade 151 and the lower blade 152.
[0043] Furthermore, the reflector 52 is connected to a condenser lens 53, and the elevator 14 is connected to a platform 16, with the platform 16 located at the focusing point of the condenser lens 53.
[0044] The working principle of this embodiment is as follows: the elevator 14 moves the upper blade 151 and lower blade 152 downwards. During this downward movement, the lower blade 152 cuts the soil. After cutting to a certain depth, the soil slides from between the upper blade 151 and lower blade 152 onto the stage 16. The LIBS laser emitter 51 emits a laser beam to the reflector 52, which then reflects the laser beam to the focusing lens 53. At this point, the laser path generated by the LIBS laser emitter 51 passes through the through slot 17, ultimately irradiating the soil. When the laser irradiance exceeds the breakdown threshold of the soil sample, a small amount of soil sample will be ablated and excited to generate plasma. At the end of the laser pulse, the plasma rapidly diffuses and cools. The laser-induced plasma contains electrons, ions, atoms, molecules, and particles, and is electrically neutral overall. During this period, atoms and ions in the excited state migrate from the high-energy state back to the low-energy state and emit characteristic light radiation with specific wavelengths. The spectrometer 54 analyzes the peak positions and intensities in the plasma emission spectrum to identify the types and contents of elements in the soil sample. Finally, the information processing module 6 sends the results to the terminal. When it is necessary to test the upper part of the soil, the upper blade 151 and lower blade 152 are moved upward by the elevator 14, and the rest is the same as the above.
[0045] The beneficial effects of this embodiment are: the LIBS (Laser-Induced Breakdown Spectroscopy) analysis component can more effectively detect soil conditions.
[0046] Example 5 like Figure 2-4 As shown, based on Embodiment 4, the main difference from Embodiment 4 is that a wireless charger is also provided on the supply pile body 11, which is used to charge agricultural drones.
[0047] The working principle of this embodiment is that when the drone lands on the detection and replenishment pile 1, it is charged by the wireless charger; the drone can charge during the water replenishment interval, or it can stay on the replenishment pile for a long time until it is fully charged before leaving.
[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A method for improving the battery life of agricultural drones, characterized in that, Includes the following steps: Step 1: Set up detection and supply piles in the farmland (1); Step 2: Regularly test and analyze the soil conditions at the location by testing the replenishment piles (1); Step 3: Send the soil analysis results to the processing terminal by detecting the replenishment pile (1); Step 4: The terminal controls the agricultural drone to fly to the detection and resupply pile in the target area based on the analysis results (1); Step 5: The agricultural drone lands on the detection and supply pile (1) in the target area. The detection and supply pile (1) detects the weight of the drone. If the total weight of the drone is less than the maximum take-off weight or the set value, the detection and supply pile (1) fills the water tank of the agricultural drone with water. Step 6: After completing the above steps, fly to the target area to carry out the operation; If the soil information in step 3 indicates that the area is short of water, the agricultural drone in step 4 will only carry an empty water tank; if the soil information in step 3 indicates that the area has pest problems, the agricultural drone's water tank will only carry pesticide concentrate; if the soil information in step 3 indicates that the area lacks nutrients, the agricultural drone's water tank will only carry the corresponding fertilizer concentrate.
2. The method for improving the endurance of an agricultural drone according to claim 1, characterized in that, The detection and replenishment piles (1) mentioned in step 1 are set up in groups of 15 to 20 per 20 acres.
3. The method for improving the endurance of an agricultural drone according to claim 2, characterized in that, A LIBS analysis component (5) and an information processing module (6) are installed inside the detection and replenishment pile. The soil condition is detected by laser-induced breakdown spectroscopy (LIBS) using the LIBS analysis component (5), and the detection and analysis results of the LIBS analysis component (5) are sent to the terminal through the information processing module (6).
4. A detection and resupply station based on the method for improving the endurance of an agricultural drone according to claim 3, characterized in that, The detection and replenishment pile (1) includes a pile body (11), which is partially inserted into the soil. A pressure sensor (12) for sensing the weight of the agricultural drone is installed at the top of the pile body (11). A water pump (2) for replenishing water to the agricultural drone is installed inside the pile body (11), and the water pump (2) is connected to groundwater. A LIBS analysis component (5) for detecting soil conditions is installed inside the pile body (11). The pile body (11) also contains... There is an information processing module (6), and the pressure sensor (12) and the water pump (2) are electrically connected to the information processing module (6). The information processing module (6) is also used to transmit the data detected by the LIBS analysis component (5). The inside of the recharge pile body (11) is equipped with a power module (4) connected to an external power source. The water pump (2) and the LIBS analysis component (3) are electrically connected to the power module (4). The power module (4) is used to provide power to the water pump (2) and the LIBS analysis component (3).
5. The detection and resupply pile according to claim 4, characterized in that, The LIBS analysis component (5) includes a LIBS laser emitter (51), a reflector (52), and a spectrometer (54). The LIBS laser emitter (51) is located at the top of the inner cavity of the recharge pile body (11). The reflector (52) is located below the LIBS laser emitter (51) and is positioned below the soil level. The recharge pile body (11) has a through slot (17) for the laser to pass through. The spectrometer (54) is located on the laser path (55) emitted by the LIBS laser emitter.
6. The detection and replenishment pile according to claim 5, characterized in that, The supply pile body (11) is also equipped with a lift (14), the reflector (52) is connected to the lift (14), and the lift (14) is also connected to a soil cutting blade (15).
7. The detection and replenishment pile according to claim 6, characterized in that, The soil cutting blade (15) includes an upper blade (151) and a lower blade (152), and the reflector (52) is located between the upper blade (151) and the lower blade (152).
8. The detection and replenishment pile according to claim 7, characterized in that, The reflector (52) is connected to a condenser (53), the elevator (14) is connected to a platform (16), and the platform (16) is located at the focusing point of the condenser (53).
9. The detection and replenishment pile according to claim 4, characterized in that, The supply pile (11) is also equipped with a wireless charger (13), which is used to charge agricultural drones.
Citation Information
Patent Citations
Plug-in type soil all-element field detector
CN112161958A
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