Aircraft for mangrove forest greenhouse gas flux measurement

Abstract

The utility model relates to an aircraft for mangrove forest greenhouse gas flux measurement. The aircraft comprises an unmanned aerial vehicle; the treatment box is mounted below the unmanned aerial vehicle, and the treatment box is provided with a containing cavity and a through hole communicating with the containing cavity; the air pump is arranged in the containing cavity and connected with a control system of the unmanned aerial vehicle; one end of the sampling pipe is connected with an inlet of the air pump, and the other end of the sampling pipe is used for penetrating through the through hole to be away from the unmanned aerial vehicle so as to sample gas in the mangrove forest; the greenhouse gas flux detector is arranged in the containing cavity and at the outlet of the gas pump, and the greenhouse gas flux detector is used for detecting greenhouse gas flux. According to the present invention, the gas in the mangrove forest is sampled through the sampling pipe far away from the unmanned aerial vehicle, such that the interference of the flow field of the unmanned aerial vehicle on the gas environment can be reduced, such that the collected gas is close to the original gas component and the gas state of the mangrove forest, and the accuracy of the greenhouse gas flux detector on the greenhouse gas flux detection is improved.

Description

Technical Field

[0001] This application relates to the technical field of greenhouse gas emissions. Background Art

[0002] The mangrove wetland ecosystem is located in the coastal critical zone at the land-sea boundary, with the characteristics of both marine and terrestrial ecosystems, and has ecological function characteristics such as complex diversity, sensitivity and fragility, and typical importance. The health of the ecosystem under mangroves is a prerequisite for the mangrove wetland to maintain stability, exert its ecological functions, and achieve sustainable development. In recent years, as a major contributor to the global "blue carbon sink", the carbon cycle of mangroves has received great attention. In addition to having high primary productivity and low organic matter decomposition rate, mangroves have a large root-shoot ratio, which can store a large amount of carbon and store it in the soil through root turnover. Mangrove intertidal wetlands have important potential in reducing the emission of carbon-containing greenhouse gases and reducing the global greenhouse effect.

[0003] Accurately monitoring the flux of greenhouse gases is crucial for understanding and addressing climate change. Traditional methods for monitoring greenhouse gases usually rely on ground stations or satellite remote sensing technology. Ground station data may be limited by the distribution of monitoring points, while satellite remote sensing may be limited by resolution and cloud cover. Unmanned aerial vehicle (UAV) technology has developed rapidly in recent years, and its applications in multiple fields such as agriculture, forestry, and environmental monitoring are becoming increasingly widespread. UAVs have the advantages of high flexibility, relatively low cost, and the ability to enter dangerous or inaccessible areas. UAVs can carry various sensors, including greenhouse gas flux detectors, for aerial monitoring. This enables them to cover a wider area, provide higher-resolution data, and respond quickly to emergencies.

[0004] In the process of implementing this application, the applicant of this application found that: although UAVs have the potential in monitoring greenhouse gases, they also face some technical challenges. For example, when the greenhouse gas flux detector is detecting, it is easily interfered by the flow field of the UAV's flight power system, resulting in inaccurate detection data of the greenhouse gas detector. Summary of the Utility Model

[0005] In view of the above problems, this application provides an aircraft for measuring the greenhouse gas flux of mangroves, which overcomes or at least partially solves the above problems.

[0006] According to one aspect of the embodiments of the present application, there is provided an aircraft for measuring greenhouse gas fluxes in mangroves, including a drone; a processing box installed below the drone, the processing box being provided with a receiving cavity and a through hole communicating with the receiving cavity; an air pump disposed in the receiving cavity, the air pump being connected to the control system of the drone; a sampling tube, one end of the sampling tube being connected to the inlet of the air pump, and the other end of the sampling tube being configured to pass through the through hole and move away from the drone to sample the gas in the mangroves; a greenhouse gas flux detector disposed in the receiving cavity and at the outlet of the air pump, the greenhouse gas flux detector being configured to detect the greenhouse gas fluxes.

[0007] In an optional manner, the aircraft for measuring greenhouse gas fluxes in mangroves further includes a gas collecting hood disposed at the other end of the sampling tube.

[0008] In an optional manner, the aircraft for measuring greenhouse gas fluxes in mangroves further includes a filter screen disposed on the gas collecting hood.

[0009] In an optional manner, the processing box is further provided with an air outlet communicating with the receiving cavity.

[0010] In an optional manner, the aircraft for measuring greenhouse gas fluxes in mangroves further includes a motor disposed in the processing box, an output shaft of the motor being connected to one end of the sampling tube, the motor being configured to wind the sampling tube, and the motor being connected to the control system of the drone.

[0011] In an optional manner, when the sampling tube is wound around the output shaft of the motor, the wound sampling tube is stuck to the processing box at the through hole.

[0012] In an optional manner, the aircraft for measuring greenhouse gas fluxes in mangroves further includes a wireless communication module connected to the control system of the drone, the greenhouse gas flux detector being connected to the control system, and the wireless communication module being configured to send the data detected by the greenhouse gas flux detector to a ground station.

[0013] In an optional manner, the control system of the drone is housed in the receiving cavity.

[0014] In an optional manner, the drone further includes a central frame, four arms, and four flight power systems. The four arms are radially and spacedly connected to the central frame with the central frame as the center. The arms are provided with mounting holes, the flight power systems correspond to the mounting holes, the flight power systems are connected to the control system, and the processing box is installed below the central frame.

[0015] In an alternative embodiment, the flight power system includes a first motor, a rotor, and a support rod; one end of the support rod is connected to the arm, the other end of the support rod extends to the mounting hole, the first motor is disposed at the other end of the support rod, the rotor is connected to the output shaft of the first motor, and the rotor is located in the mounting hole.

[0016] The beneficial effects of the embodiments of the present application include: providing an aircraft for measuring greenhouse gas flux in mangroves, including a drone; a processing box installed below the drone, the processing box is provided with a receiving cavity and a through hole communicating with the receiving cavity; an air pump disposed in the receiving cavity, the air pump is connected to the control system of the drone; a sampling tube, one end of the sampling tube is connected to the inlet of the air pump, and the other end of the sampling tube is used to pass through the through hole and away from the drone to sample the gas in the mangroves; a greenhouse gas flux detector disposed in the receiving cavity and at the outlet of the air pump, the greenhouse gas flux detector is used to detect the greenhouse gas flux. Through the above-mentioned aircraft for measuring greenhouse gas flux in mangroves, the gas in the mangroves is sampled by the sampling tube away from the drone, which can reduce the interference of the flow field of the drone on the gas environment, that is, the sampled gas is the gas away from the flow field of the drone, so that the sampled gas can be close to the original gas composition and gas state of the mangroves, and improve the accuracy of the greenhouse gas flux detector in detecting the greenhouse gas flux. Description of the Drawings

[0017] One or more embodiments are illustrated by way of example in the accompanying drawings, which do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a scale limitation.

[0018] Figure 1 is a schematic diagram of an aircraft for measuring greenhouse gas flux in mangroves provided by an embodiment of the present application;

[0019] Figure 2 is a partial cross-sectional view of an aircraft for measuring greenhouse gas flux in mangroves provided by an embodiment of the present application;

[0020] Figure 3 is a schematic diagram of the control system connected to each component provided by an embodiment of the present application;

[0021] Figure 4 is a top view of the drone provided by an embodiment of the present application.

[0022] The reference numerals are as follows:

[0023] An aircraft 100 for measuring greenhouse gas fluxes in mangroves;

[0024] The drone 1, the processing box 2, the air pump 3, the sampling tube 4, the greenhouse gas flux detector 5, the gas collection hood 6, the filter screen 7, the motor 8, the wireless communication module 9,

[0025] The control system 11, the central frame 12, the arm 13, the flight power system 14;

[0026] The mounting hole 131;

[0027] The first motor 141, the rotor 142, the support rod 143;

[0028] The receiving cavity 21, the through hole 22, the air outlet 23;

[0029] The inlet 31 of the air pump 3, the outlet 32 of the air pump 3. Detailed implementation mode

[0030] For the convenience of understanding this application, the following will combine the drawings and specific embodiments to describe this application in more detail. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer" and similar expressions used in this specification are only for the purpose of illustration.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not used to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0032] Please refer to Figures 1 to 3 , the aircraft 100 for measuring greenhouse gas fluxes in mangroves includes the drone 1, the processing box 2, the air pump 3, the sampling tube 4 and the greenhouse gas flux detector 5. The processing box 2 is arranged below the drone 1, the air pump 3 is received in the processing box 2, the sampling tube 4 is connected to the air pump 3, the sampling tube 4 is used to be away from the drone 1 to sample the gas in the mangroves, and the greenhouse gas flux detector 5 is arranged in the processing box 2 to detect the greenhouse gas fluxes of the gas in the mangroves collected by the sampling tube 4.

[0033] For the above-mentioned drone 1, in some embodiments, please refer toFigure 3 and Figure 4 The drone 1 includes a control system 11, a central frame 12, four arms 13 and four flight power systems 14. The control system 11 is the control center of the drone 1 and also the control center of the aircraft 100 for measuring the greenhouse gas flux in the mangrove forest. The four arms 13 are radially and spacedly connected to the central frame 12 with the central frame 12 as the center. The arm 13 is provided with a mounting hole 131. The flight power system 14 corresponds to the mounting hole 131. The flight power system 14 is connected to the control system 11. The control system 11 is used to control the operation of the flight power system 14. The control system 11 is installed below the central frame 12. The drone 1 is used to carry the processing box 2, the air pump 3, the sampling tube 4 and the greenhouse gas flux detector 5.

[0034] In some embodiments, please refer to Figure 1 The flight power system 14 includes a first motor 141, a rotor 142 and a support rod 143. One end of the support rod 143 is connected to the arm 13. The other end of the support rod 143 extends to the mounting hole 131. The first motor 141 is arranged at the other end of the support rod 143. The rotor 142 is connected to the output shaft of the first motor 141. The rotor 142 is located in the mounting hole 131.

[0035] For the above-mentioned processing box 2, please refer to Figure 1 and Figure 2 The processing box 2 is installed below the drone 1. When the central frame 12 is provided on the drone 1, the processing box 2 is installed below the central frame 12. The processing box 2 is provided with a receiving cavity 21 and a through hole 22 communicating with the receiving cavity 21. The receiving cavity 21 is used for arranging the air pump 3 and the greenhouse gas flux detector 5. The receiving cavity 21 is also used for receiving the control system 11 of the drone 1 to protect it. The through hole 22 is used for the sampling tube 4 to pass through to be away from the drone 1 and away from the flow field of the drone 1.

[0036] It can be understood that preferably, the through hole 22 is arranged below the processing box 2.

[0037] In some embodiments, the processing box 2 is further provided with an air outlet 23 communicating with the accommodation chamber 21. The air outlet 23 is used for the gas in the mangrove collected by the sampling tube 4 to flow out after being detected by the greenhouse gas flux detector 5. That is, the gas in the mangrove collected by the sampling tube 4 flows out immediately after being detected by the greenhouse gas flux detector 5, forming a scenario where the gas is sampled from the sampling tube 4, the greenhouse gas flux detector 5 detects the greenhouse gas flux, and then the gas flows out from the air outlet 23, reducing the retention of the detected gas in the processing box 2 and further improving the detection accuracy of the greenhouse gas flux detector 5.

[0038] For the above air pump 3, sampling tube 4 and greenhouse gas flux detector 5, please refer to Figure 2 , the air pump 3 is arranged in the accommodation chamber 21. The inlet 31 of the air pump 3 is connected to one end of the sampling tube 4. The other end of the sampling tube 4 is used to pass through the through hole 22 and move away from the drone 1 to sample the gas in the mangrove. The greenhouse gas flux detector 5 is arranged in the accommodation chamber 21 and at the outlet 32 of the air pump 3. The greenhouse gas flux detector 5 is used to detect the greenhouse gas flux of the gas in the mangrove collected by the sampling tube 4 flowing out from the outlet 32 of the air pump 3. Since the other end of the sampling tube 4 is far away from the drone 1, the gas in the mangrove collected by it is less affected by the flow field of the drone 1, that is, the gas in the mangrove collected by it is close to the original gas composition and gas state of the mangrove, and thus the accuracy of the greenhouse gas flux detector 5 in detecting the greenhouse gas flux can be improved.

[0039] It can be understood that the air pump 3 is connected to the control system 11 of the drone 1, and the control system 11 is used for the air pump 3 to work.

[0040] In some embodiments, please refer to Figure 1 or Figure 2 , the aircraft 100 for measuring the greenhouse gas flux of the mangrove further includes a gas collecting hood 6. The gas collecting hood 6 is arranged at the other end of the sampling tube 4. By arranging the gas collecting hood 6, it is convenient for the sampling tube 4 to sample the gas in the mangrove.

[0041] In some embodiments, please refer to Figure 1 or Figure 2 , the aircraft 100 for measuring the greenhouse gas flux of the mangrove further includes a filter screen 7. The filter screen 7 is arranged on the gas collecting hood 6. By arranging the filter screen 7, the impurities entering the gas collecting hood 6 and the sampling tube 4 can be reduced, and the probability of the sampling tube 4 being blocked can be reduced.

[0042] In some embodiments, please refer to Figure 1 orFigure 2 The aircraft 100 for measuring the greenhouse gas flux of mangroves further includes a motor 8. The motor 8 is disposed in the processing box 2. The output shaft of the motor 8 is connected to one end of the sampling tube 4. The motor 8 is used to wind the sampling tube 4, and the motor 8 is connected to the control system 11 of the drone 1. The control system 11 is used to control the operation of the motor 8. By providing the motor 8, on the one hand, when it is not necessary to sample the gas in the mangroves, the sampling tube 4 can be wound around the output shaft of the motor 8 to reduce the flight resistance of the drone 1; on the other hand, the length of the sampling tube 4 wound around the output shaft of the motor 8 can be controlled by the control system 11, that is, the length of the sampling tube 4 released by the motor 8 can be controlled, so that the gas in different height ranges in the mangroves can be sampled.

[0043] In some embodiments, when the sampling tube 4 is wound around the output shaft of the motor 8, the wound sampling tube 4 is stuck at the through hole 22 of the processing box 2, so as to prevent the sampling tube 4 wound around the output shaft of the motor 8 from falling off.

[0044] In some embodiments, please refer to Figure 3 The aircraft 100 for measuring the greenhouse gas flux of mangroves further includes a wireless communication module 9. The wireless communication module 9 is connected to the control system 11 of the drone 1. The greenhouse gas flux detector 5 is connected to the control system 11. The control system 11 is used to control the wireless communication module 9 to send the data detected by the greenhouse gas flux detector 5 to the ground station.

[0045] In some embodiments, the wireless communication module 9 uses various methods including a data radio station, a wi-fi wireless module, a mobile network data transmission module, etc. to send the data detected by the greenhouse gas flux detector 5 to the ground station.

[0046] It is worth noting that the program steps involved in the control system 11 are existing program steps, and the control system 11 also uses existing processors, such as: Intel's I3 processor, AMD Ryzen processor, and so on.

[0047] To facilitate the reader's understanding of the concept of this application, the working process of an implementation of the aircraft 100 for measuring greenhouse gas fluxes in mangroves is briefly described as follows. The aircraft 100 for measuring greenhouse gas fluxes in mangroves flies to the target detection area. The drone 1 can be in a hovering state. The control system 11 controls the motor 8 to release the sampling tube 4. The control system 11 controls the air pump 3 to operate to extract the gas in the mangroves through the sampling tube 4. The collected gas of the mangroves is discharged from the outlet 32 of the air pump 3. The greenhouse gas flux detector 5 detects the greenhouse gas flux of the gas discharged from the outlet 32 of the air pump 3. The detected gas can also be discharged from the air outlet 23 on the processing box 2. After detecting the greenhouse gas flux, the control system 11 can control the wireless communication module 9 to transmit the corresponding data to the ground station. The control system 11 can also control the motor 8 to operate to wind the sampling tube 4 around the output shaft of the motor 8. The drone 1 can also fly to another detection area for detecting the greenhouse gas flux.

[0048] In the embodiment of this application, the aircraft 100 for measuring greenhouse gas fluxes in mangroves includes a drone 1; a processing box 2 installed below the drone 1. The processing box 2 is provided with a receiving cavity 21 and a through hole 22 communicating with the receiving cavity 21; an air pump 3 provided in the receiving cavity 21. The air pump 3 is connected to the control system 11 of the drone 1; a sampling tube 4. One end of the sampling tube 4 is connected to the inlet 31 of the air pump 3, and the other end of the sampling tube 4 is used to pass through the through hole 22 and away from the drone 1 to sample the gas in the mangroves; a greenhouse gas flux detector 5 provided in the receiving cavity 21 and at the outlet 32 of the air pump 3. The greenhouse gas flux detector 5 is used to detect the greenhouse gas flux. Through the above-mentioned aircraft 100 for measuring greenhouse gas fluxes in mangroves, the gas in the mangroves is sampled through the sampling tube 4 away from the drone 1, which can reduce the interference of the flow field of the drone 1 on the gas environment, that is, the collected gas is the gas away from the flow field of the drone 1, so that the collected gas can be close to the original gas composition and gas state of the mangroves, and improve the accuracy of the greenhouse gas flux detector 5 in detecting the greenhouse gas flux.

[0049] It should be noted that the description and drawings of the present application provide preferred embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments do not serve as additional limitations to the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Moreover, the above technical features continue to be combined with each other to form various embodiments not listed above, all of which are regarded as within the scope described in the description of the present application; further, for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present application.

Claims

1. An aircraft for measuring greenhouse gas flux in mangrove forests, characterized in that: include: Drones; A processing box is installed below the UAV, and the processing box is provided with a receiving cavity and a through hole communicating with the receiving cavity; An air pump is disposed in the receiving chamber, and the air pump is connected to the control system of the drone; A sampling tube, one end of which is connected to the inlet of the air pump, and the other end of which is used to pass through the through hole and away from the drone to sample the gas in the mangrove forest; A greenhouse gas flux detector is disposed in the receiving cavity and at the outlet of the air pump, and the greenhouse gas flux detector is used to detect the greenhouse gas flux; The aircraft for measuring greenhouse gas flux in mangroves also includes a motor, which is arranged in the processing box. The output shaft of the motor is connected to one end of the sampling tube. The motor is used to wind the sampling tube. The motor is connected to the control system of the drone, and the length of the sampling tube wound on the output shaft of the motor is controlled by the control system.

2. The aircraft for measuring greenhouse gas flux in mangrove forests according to claim 1, characterized in that: The aircraft for measuring greenhouse gas flux in mangroves also includes a gas collecting hood, which is arranged at the other end of the sampling tube.

3. The aircraft for measuring greenhouse gas flux in mangrove forests according to claim 2, characterized in that: The aircraft for measuring greenhouse gas flux in mangroves also includes a filter, which is arranged on the gas collecting hood.

4. The aircraft for measuring greenhouse gas flux in mangrove forests according to any one of claims 1 to 3, characterized in that: The processing box is also provided with an air outlet connected to the receiving cavity.

5. The aircraft for measuring greenhouse gas flux in mangrove forests according to any one of claims 1 to 3, characterized in that: When the sampling tube is wound around the output shaft of the motor, the wound sampling tube is clamped in the processing box at the through hole.

6. The aircraft for measuring greenhouse gas flux in mangrove forests according to any one of claims 1 to 3, characterized in that: The aircraft used for measuring greenhouse gas flux in mangroves also includes a wireless communication module, which is connected to the control system of the drone, and the greenhouse gas flux detector is connected to the control system. The wireless communication module is used to send data detected by the greenhouse gas flux detector to a ground station.

7. The aircraft for measuring greenhouse gas flux in mangrove forests according to any one of claims 1 to 3, characterized in that: The control system of the drone is accommodated in the accommodation cavity.

8. The aircraft for measuring greenhouse gas flux in mangrove forests according to claim 7, characterized in that: The UAV also includes a center frame, four arms and four flight power systems. The four arms are radially connected to the center frame with the center frame as the center. The arms are provided with mounting holes. The flight power systems correspond to the mounting holes. The flight power systems are connected to the control system. The processing box is installed below the center frame.

9. The aircraft for measuring greenhouse gas flux in mangrove forests according to claim 8, characterized in that: The flight power system includes a first motor, a rotor and a support rod; One end of the support rod is connected to the machine arm, and the other end of the support rod extends to the mounting hole. The first motor is arranged at the other end of the support rod, and the rotor is connected to the output shaft of the first motor, and the rotor is located in the mounting hole.

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