Mechanical sensing accounting device and method for real-time monitoring of wetland ecological carbon sink

Abstract

This invention discloses a mechanical sensing and calculation device and method for real-time monitoring of wetland ecological carbon sinks in the field of carbon sink monitoring technology. It includes an analysis module and several carbon flux monitoring devices. The analysis module is used to analyze carbon flux based on the eddy covariance method. The carbon flux monitoring devices include a three-dimensional anemometer, a data acquisition mechanism, a gas analyzer, an adsorption component, and a sensing device. By setting up a rotatable gas analyzer, the high-frequency response advantage of the open path and the environmental stability advantage of the closed path are effectively combined. Furthermore, through cross-validation and mapping calibration, a long-term flux time series with better continuity and higher accuracy can be obtained, which is especially suitable for key observation sites with high requirements for data quality.

Description

Technical Field

[0001] This invention relates to the field of carbon sink monitoring, specifically to a mechanical sensing and accounting device and method for real-time monitoring of wetland ecological carbon sinks. Background Technology

[0002] Monitoring and accounting for carbon sequestration in wetland ecosystems is beneficial for accurately quantifying their enormous carbon sequestration capacity and providing key data for global carbon budget assessment. It also reveals carbon sequestration dynamics and greenhouse gas balance, providing a scientific basis for wetland protection, restoration, and ecological compensation. Existing carbon sequestration monitoring methods generally involve conducting biological surveys of carbon storage and then monitoring the carbon flux of wetlands in real time using the eddy covariance method. The principle is to calculate the carbon dioxide exchange flux between the Earth's surface and the atmosphere in real time by measuring the three-dimensional wind speed and gas concentration fluctuations in the atmosphere at high frequency. For example, a data processing method for eddy covariance observation flux data disclosed in application number 202010845082.5 obtains carbon sequestration data by processing the eddy covariance observation flux data.

[0003] In existing technologies, the concentration fluctuations of carbon dioxide need to be measured in real time using an infrared gas analyzer. There are generally two measurement methods: open and closed. Open measurement refers to placing the infrared gas analyzer in the environment to measure directly. Closed measurement involves drawing the gas into a closed chamber for measurement. The advantage of open measurement is that it is real-time and accurate, but it is more severely affected by inclement weather. Closed measurement is less affected by weather, but the data may contain errors due to temperature and pressure changes caused by gas flow.

[0004] In addition, existing technologies have attempted to use mapping relationship tables to map the results of closed measurements to open measurements. However, the mapping relationship varies in different seasons and climates, which can easily lead to data distortion. Summary of the Invention

[0005] The purpose of this invention is to provide a mechanical sensing and accounting device and method for real-time monitoring of wetland ecological carbon sinks, which combines the advantages of open and closed measurement and solves the problems of susceptibility to weather and accuracy distortion in existing carbon dioxide monitoring processes.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A mechanical sensing and accounting device for real-time monitoring of wetland ecological carbon sinks includes an analysis module and several carbon flux monitoring devices. The analysis module is used to analyze carbon flux based on the eddy covariance method. The carbon flux monitoring devices include:

[0008] 3D anemometer;

[0009] A collection mechanism for creating a closed environment, including a housing and a rectifier assembly for creating a stable airflow within the housing;

[0010] A gas analyzer, which is mounted on a rotating housing, is used to collect gas data in both open and closed environments.

[0011] Adsorption components are used to adsorb droplets or collect precipitation;

[0012] The sensing device, which is installed on the chamber, is used to monitor the weight of the adsorption components to provide early warning of precipitation and humidity data, and to control the gas analyzer to rotate into the chamber for gas analysis when the weight reaches a threshold.

[0013] As a preferred embodiment of the present invention, it also includes an iron tower and a mounting base for placing the carbon flux monitoring device at a preset height above the canopy height, as well as a power supply system and a communication system. The carbon flux monitoring device is placed above the canopy height to prevent the influence of canopy airflow. The preset height is generally 2-3 times the canopy height. The power supply system can be powered by the power grid or by generating and storing electricity.

[0014] As a preferred embodiment of the present invention, the rectifying component includes: an inlet disposed on the housing and facing the three-dimensional anemometer, a fan disposed inside the inlet, and air distribution plates disposed on both sides of the housing and communicating with the inlet. The surface of the air distribution plates is provided with through holes, and an outlet is also provided at the end of the housing away from the inlet. The outlets can be distributed. By setting the air distribution plates and the distributed outlets, it is beneficial to form a stable airflow and avoid the formation of dead zones in the gas inside the housing, which would affect the measurement readings.

[0015] As a preferred embodiment of the present invention, the sensing device includes a support portion that shields the gas analyzer above it, and a through groove is provided on the surface of the support portion. The adsorption component is disposed in the through groove. The adsorption component includes a collection box, and a plurality of shafts are disposed in the collection box. A plurality of oscillating pins are rotatably sleeved on the shafts. The bottom of the collection box is also provided with a connection interface. By setting the oscillating pins, it is beneficial to accumulate condensate in high humidity or foggy weather.

[0016] As a preferred embodiment of the present invention, the inner bottom wall of the collection box is further provided with a guide portion, which is used to guide water droplets to contact the bottom of the pendulum needle when the pendulum needle is tilted relative to the collection box, so as to guide the water droplets on the pendulum needle to gather and discharge.

[0017] As a preferred embodiment of the present invention, one end of the collection box is provided with a shaft for rotatably connecting with the through slot, and the support is provided with an elastic element for supporting the other end of the collection box. The support is provided with a contact part, which overcomes the elastic element and conducts the contact part when the weight of the collection box exceeds a threshold. The support is also provided with an electromagnet, which attracts the pendulum needle to rotate after the contact part is conducted. This embodiment, by setting a mechanical sensing function based on weight change, controls the gas analyzer to rotate into the chamber to measure the gas concentration when the humidity reaches a certain level.

[0018] As a preferred embodiment of the present invention, the support part is provided with a drain connection pipe corresponding to the interface. The drain connection pipe is rotatably mounted on the support part, and a rotating disk is provided at the bottom of the drain connection pipe. The rotating disk is radially provided with a drain outlet. The drain connection pipe is used to drain the water in the collection box.

[0019] As a preferred embodiment of the present invention, the gas analyzer includes two circular closed plates, which are perpendicular to each other and have the same diameter. A driving part is provided at the overlapping part to drive rotation. A detector is embedded between the two closed plates. In this embodiment, the two mutually perpendicular closed plates can still be assembled into a whole with the box body after rotating 90°.

[0020] As a preferred embodiment of the present invention, the bottom of the rotating disk is provided with a transmission component for rotating the rotating disk so that the drain outlet faces the lens of the detector, so as to allow condensate water to rinse the lens.

[0021] The transmission assembly includes an internally threaded cylinder located at the bottom of the rotating disk, a threaded column connected to the internally threaded cylinder, a rack connected to the threaded column, and an arc-shaped gear located on the sealing plate. Since the gas analyzer has a rotation function, and the condensate and dust adsorbed by the pendulum needle in this solution contain little dust, it can be used to clean the detector and reduce the frequency of manual maintenance.

[0022] To implement the above-mentioned device, the present invention also proposes a mechanical sensing accounting method for real-time monitoring of wetland ecological carbon sequestration, comprising the following steps:

[0023] Based on the gas analyzer obtaining first gas data in closed acquisition mode and second gas data in open acquisition mode, the mapping relationship between the first gas data and the second gas data is obtained based on a pre-trained mapping model.

[0024] Meteorological data of the area where the gas analyzer is located is obtained, three-dimensional wind speed data of the area is collected by a three-dimensional anemometer, and the meteorological data, three-dimensional wind speed data, and second gas data obtained by open acquisition / second gas data obtained based on first gas data and mapping model are processed by the analysis module to obtain real-time carbon flux data, and carbon sink data is obtained based on real-time carbon flux data and historical carbon flux data.

[0025] The training process of the mapping model includes: using sensors to predict humidity and precipitation data; obtaining first gas data using a closed acquisition mode when air humidity and precipitation reach preset thresholds, and obtaining second gas data using an open acquisition mode when air humidity and precipitation do not reach preset thresholds; denoising the real-time gas data and historical gas data, and obtaining several historical datasets based on seasonal classification labels. and real-time datasets 'i' represents the seasonal classification, and the historical dataset is used for classification. The dataset is divided into a 70% training set and a 30% test set. The model is trained using a machine learning algorithm, and the total loss function is optimized to adjust the model parameters, resulting in a fully trained mapping model.

[0026] The beneficial effects of this invention are as follows: by setting up a rotatable gas analyzer, carbon dioxide data near the three-dimensional anemometer can be obtained directly in real time under normal weather conditions, and carbon dioxide data can be monitored inside the chamber under rain, snow and fog conditions. This effectively combines the high-frequency response advantage of the open path with the environmental stability advantage of the closed path. Furthermore, through cross-validation and mapping calibration, a long-term flux time series with better continuity and higher accuracy can be obtained, which is especially suitable for key observation sites with high requirements for data quality. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0029] Figure 3 For the present invention Figure 2 The main view in the middle;

[0030] Figure 4 For the present invention Figure 3 A sectional view;

[0031] Figure 5 For the present invention Figure 4 Enlarged view of the structure of section A in the middle;

[0032] Figure 6 For the present invention Figure 5 Enlarged view of the structure of section B;

[0033] Figure 7 This is a top sectional view of the housing of the present invention;

[0034] Figure 8 This is a schematic diagram of the gas analyzer of the present invention;

[0035] Figure 9 This is a top view of the collection box of the present invention;

[0036] In the diagram: 1. Mounting base; 2. 3D anemometer; 3. Data acquisition mechanism; 31. Housing; 32. Outlet; 33. Inlet; 34. Fan; 35. Air distribution plate; 36. Through hole; 37. Infrared light source; 4. Gas analyzer; 41. Sealing plate; 42. Detector; 43. Drive unit; 5. Sensing device; 51. Support unit; 52. Through groove; 53. Drainage connection pipe; 54. Bearing; 55. Rotary disk; 56. Drain outlet; 57. Electromagnet; 58. Contact part; 59. Elastic element; 6. Adsorption assembly; 61. Collection box; 62. Connection interface; 63. Shaft; 64. Pendulum needle; 65. Guide part; 66. Shaft; 67. Counterweight; 68. Conductive part; 7. Transmission assembly; 71. Internal threaded cylinder; 72. Threaded column; 73. Rack; 74. Arc gear. Detailed Implementation

[0037] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0038] Example 1

[0039] like Figure 1-9 As shown, a mechanical sensing and accounting device for real-time monitoring of wetland ecological carbon sinks includes an analysis module and several carbon flux monitoring devices. The analysis module is used to analyze carbon flux based on the eddy covariance method. The carbon flux monitoring devices include: a three-dimensional anemometer 2, a data acquisition mechanism 3, a gas analyzer 4, an adsorption component 6, and a sensing device 5. The data acquisition mechanism 3 is used to form a closed environment, including a housing 31 and a rectifier component for forming a stable airflow within the housing 31. The gas analyzer 4 is rotatably mounted on the housing 31 and is used to acquire gas data from both the open and closed environments.

[0040] The adsorption component 6 is used to adsorb droplets or collect precipitation; the sensing device 5 is installed on the housing 31 to monitor the weight of the adsorption component 6 to provide early warning of precipitation and humidity data, and to control the gas analyzer 4 to rotate into the housing 31 for gas analysis when the weight reaches the threshold.

[0041] This solution incorporates a rotatable gas analyzer 4, which can directly and in real-time obtain carbon dioxide data near the three-dimensional anemometer 2 under normal weather conditions. In rainy, snowy, or foggy weather, it can rotate into the housing 31 to monitor carbon dioxide data. This helps reduce the accumulation of dirt on the lens surface of the gas analyzer 4, reducing maintenance frequency. Furthermore, the adsorption component 6 can adsorb relatively clean condensate for cleaning, improving the carbon dioxide monitoring capability of the outdoor high-altitude gas analyzer 4. Specifically, condensate or rainwater is collected through the adsorption component 6 and monitored by the sensor 5. When a preset weight is reached, the gas analyzer 4 is controlled to rotate into the housing 31 for data collection.

[0042] Preferably, the accounting device also includes a tower and mounting base 1 for placing the carbon flux monitoring device at a preset height above the canopy height, as well as a power supply system and a communication system. The carbon flux monitoring device is placed above the canopy to prevent turbulence near the canopy from affecting the detection. The preset height is generally 2-3 times the canopy height. The power supply system can be powered by the power grid or by generating and storing electricity.

[0043] Preferably, the rectifier assembly includes: an inlet 33 disposed on the housing 31 and facing the three-dimensional anemometer 2; a fan 34 disposed inside the inlet 33; and air distribution plates 35 disposed on both sides inside the housing 31 and connected to the inlet 33. The surface of the air distribution plate 35 is provided with through holes 36. An outlet 32 ​​is also provided at the end of the housing 31 away from the inlet 33. The outlets can be distributed. By setting the air distribution plate 35 and the distributed outlets 32, it is beneficial to form a stable airflow and avoid the formation of dead zones in the gas inside the housing 31, which would affect the measurement reading. It should be noted that the inlet 33 needs to be located close to the three-dimensional anemometer 2.

[0044] Preferably, the sensing device 5 includes a support part 51, which shields the gas analyzer 4 above it. The surface of the support part 51 is provided with a through groove 52. The adsorption component 6 is disposed in the through groove 52. The adsorption component 6 includes a collection box 61, which is provided with a plurality of shafts 63. A plurality of swivel pins 64 are rotatably sleeved on the shafts 63. The bottom of the collection box 61 is also provided with a connection interface 62. The swivel pins 64 are provided to help accumulate condensate in high humidity or foggy weather. The collection box 61 is positioned above the gas analyzer 4 to help shield it from rain and snow.

[0045] The inner bottom wall of the collection box 61 is also provided with a guide part 65, which is used to guide water droplets to contact the bottom of the pendulum needle 64 when the pendulum needle 64 is tilted relative to the collection box 61, so as to guide the water droplets on the pendulum needle 64 to gather and discharge.

[0046] Furthermore, one end of the collection box 61 is provided with a shaft 66 for rotatably connecting with the through groove 52. The support part 51 is provided with an elastic element 59 for supporting the other end of the collection box 61. The support part 51 is provided with a contact part 58. When the weight of the collection box 61 exceeds a threshold, it overcomes the elastic element 59 and conducts the contact part 58. In order to increase the sensitivity, a counterweight 67 can be provided on the collection box 61. An electromagnet 57 is also provided in the support part 51, which is used to attract the pendulum needle 64 to rotate after the contact part 58 is turned on. This solution sets a mechanical sensing function of weight change so that when the humidity reaches a certain level, a large number of pendulum needles 64 will be adsorbed with water droplets, increasing the weight of the collection box 61. The collection box 61 then rotates and conducts the contact part 58, controlling the gas analyzer to rotate into the chamber to measure the gas concentration, and also conducting the electromagnet 57, causing the pendulum needle 64 to increase its tilt amplitude, which is conducive to the pendulum needle 64 contacting the guide part 65 and discharging the water droplets.

[0047] The support part 51 is provided with a drain connection pipe 53 corresponding to the interface 62. The drain connection pipe 53 is rotatably mounted on the support part 51 via a bearing 54, and a rotating disk 55 is provided at the bottom of the drain connection pipe 53. The rotating disk 55 is radially provided with a drain outlet 56. In this embodiment, the drain connection pipe is provided to drain the water in the collection box.

[0048] The gas analyzer 4 includes two circular enclosed plates 41, which are perpendicular to each other and have the same diameter. A drive unit 43 is provided at the overlapping point to drive rotation. A detector 42 is embedded between the two enclosed plates 41. In this design, the two perpendicular enclosed plates 41 can still be assembled into a whole with the housing 31 after rotating 90°. It should be noted that an infrared light source 37 needs to be set on the opposite side of the detector 42. Figure 4 As shown, it is installed inside the housing 31, and also needs to be installed near the three-dimensional anemometer 2 (not shown in the figure).

[0049] A transmission assembly 7 is provided at the bottom of the rotating disk 55 to rotate the rotating disk 55 so that the drain outlet 56 faces the lens of the detector 42, so as to allow condensate water to rinse the lens.

[0050] The transmission assembly 7 includes an internally threaded cylinder 71 located at the bottom of the rotating disk 55, a threaded post 72 connected to the internally threaded cylinder 71, a rack 73 connected to the threaded post 72, and an arc-shaped gear 74 located on the closed plate 41. Since the gas analyzer 4 has a rotation function, and the condensate adsorbed by the pendulum needle 64 in this design has a low dust content, the inner walls of the pendulum needle 64, the collection box 61, and the drain connection pipe 53 can all be coated with a hydrophilic coating. The hydrophilic coating makes the self-cleaning ability strong. After the condensate is flushed once, the drain channel achieves the self-cleaning effect. The condensate that is accumulated again can be used to clean the detector, reducing the frequency of manual maintenance. The lens of the detector can adopt the self-cleaning lens of the prior art, which can be cleaned as long as there is water. Compared with rainwater and snow water, the condensate has less dust content and is easier to clean.

[0051] To implement the above-mentioned device, the present invention also proposes a mechanical sensing accounting method for real-time monitoring of wetland ecological carbon sequestration, comprising the following steps:

[0052] Based on the gas analyzer 4, first gas data is obtained in closed acquisition mode and second gas data is obtained in open acquisition mode. The mapping relationship between the first gas data and the second gas data is obtained based on a pre-trained mapping model.

[0053] Meteorological data of the area where the gas analyzer 4 is located is obtained, and three-dimensional wind speed data of the area is collected by the three-dimensional anemometer 2. The meteorological data, three-dimensional wind speed data, and second gas data obtained by open acquisition / second gas data obtained based on the first gas data and mapping model are processed by the analysis module to obtain real-time carbon flux data. Carbon sink data is obtained based on real-time carbon flux data and historical carbon flux data.

[0054] The training process of the mapping model includes: using sensor 5 to provide early warning of humidity and precipitation data; obtaining first gas data using a closed acquisition mode when air humidity and precipitation reach preset thresholds, and obtaining second gas data using an open acquisition mode when air humidity and precipitation do not reach preset thresholds; denoising the real-time gas data and historical gas data; and obtaining several historical datasets based on seasonal classification labels. and real-time datasets 'i' represents the seasonal classification, and the historical dataset is used for classification. The dataset is divided into a 70% training set and a 30% test set. The model is trained using a machine learning algorithm, and the total loss function is optimized to adjust the model parameters, resulting in a fully trained mapping model.

[0055] Please see Figure 1-3 When the weather is suitable, three-dimensional wind speed data is obtained through three-dimensional anemometer 2, and carbon dioxide data is obtained through open-source gas analyzer 4.

[0056] In high humidity and foggy weather, water droplets are adsorbed on the surface of the pendulum needle 64. When the preset weight is reached, the collection box 61 rotates along the shaft 66 and presses down the elastic member 59. The collection box 61 is provided with a conductive part 68. When the conductive part 68 presses on the contact part 58, the drive part 43 drives the gas analyzer 4 to rotate, so that the detector 42 is aligned with the inside of the box 31. Then the fan 34 introduces airflow to monitor carbon dioxide. The tilted collection box 61, combined with the attraction of the electromagnet 57, causes the pendulum needle 64 to tilt more sharply and contact the guide part 65 to discharge water through the drain connection pipe 53. The drain connection pipe 53 discharges outward.

[0057] After the condensate is drained in one cycle, the collection box 61 and the drain connection pipe 53 are self-cleaned. When condensate is accumulated again, the drive unit 43 drives the lens of the detector 42 to face upwards, and the rotation of the sealing plate 41 drives the arc gear 74 to pull down the rack 73. The rack 73 pulls down the threaded column 72, and the threaded column 72 drives the internal threaded cylinder 71 to rotate. The rotating disk 55 rotates, so that the drain outlet 56 is aligned with the lens of the detector 42 for rinsing. The detector 42 has a waterproof function and the lens has a self-cleaning function.

[0058] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A mechanical sensing and accounting device for real-time monitoring of wetland ecological carbon sinks, comprising an analysis module and several carbon flux monitoring devices, wherein the analysis module is used to analyze carbon flux based on the eddy covariance method, characterized in that, The carbon flux monitoring device includes: Three-dimensional anemometer (2); The collection mechanism (3) is used to form a closed environment, including a housing (31) and a flow straightening assembly for forming a stable airflow within the housing (31); The gas analyzer (4) is mounted on the housing (31) and is used to collect gas data in open and closed environments. Adsorption component (6), which is used to adsorb droplets or collect precipitation; The sensing device (5), which is installed on the box (31), is used to monitor the weight of the adsorption component (6) to provide early warning of precipitation and humidity data, and to control the gas analyzer (4) to rotate into the box (31) for gas analysis when the weight reaches the threshold. The sensing device (5) includes a support (51) which shields the gas analyzer (4) above it. The support (51) has a through groove (52) on its surface. The adsorption assembly (6) is disposed in the through groove (52). The adsorption assembly (6) includes a collection box (61). The collection box (61) has several shafts (63) disposed inside it. Several oscillating needles (64) are rotatably mounted on the shafts (63). The bottom of the collection box (61) also has a connection interface (62). The inner bottom wall of the collection box (61) is also provided with a guide part (65), which is used to guide water droplets to contact the bottom of the pendulum needle (64) when the pendulum needle (64) is tilted relative to the collection box (61); The collection box (61) has a shaft (66) at one end for rotatably connecting with the through groove (52). The support part (51) has an elastic element (59) for supporting the other end of the collection box (61). The support part (51) has a contact part (58) inside. When the weight of the collection box (61) exceeds the threshold, it overcomes the elastic element (59) and conducts the contact part (58). The support part (51) also has an electromagnet (57) inside, which is used to attract the pendulum needle (64) to rotate after the contact part (58) is conducted. The support part (51) is provided with a drain connection pipe (53) corresponding to the interface (62). The drain connection pipe (53) is rotatably mounted on the support part (51), and a rotating disk (55) is provided at the bottom of the drain connection pipe (53). A drain outlet (56) is provided radially on the rotating disk (55).

2. The mechanical sensing and accounting device for real-time monitoring of wetland ecological carbon sequestration according to claim 1, characterized in that, It also includes a tower and mounting base (1) for placing the carbon flux monitoring device at a preset height above the canopy height, as well as a power supply system and a communication system.

3. The mechanical sensing and accounting device for real-time monitoring of wetland ecological carbon sequestration according to claim 1, characterized in that, The rectifier assembly includes: an intake port (33) disposed on the housing (31) and facing the three-dimensional anemometer (2); a fan (34) disposed inside the intake port (33); and air distribution plates (35) disposed on both sides inside the housing (31) and connected to the intake port (33). The surface of the air distribution plate (35) is provided with through holes (36), and an exhaust port (32) is also provided at the end of the housing (31) away from the intake port (33).

4. The mechanical sensing and accounting device for real-time monitoring of wetland ecological carbon sequestration according to claim 1, characterized in that, The gas analyzer (4) includes two circular closed plates (41), which are perpendicular to each other and have the same diameter. A drive unit (43) is provided at the point of overlap to drive rotation. A detector (42) is embedded between the two closed plates (41).

5. The mechanical sensing and accounting device for real-time monitoring of wetland ecological carbon sequestration according to claim 4, characterized in that, The bottom of the rotating disk (55) is provided with a transmission assembly (7) for rotating the rotating disk (55) so that the drain outlet (56) faces the lens of the detector (42) so that the condensate water can be used to rinse the lens. The transmission assembly (7) includes an internal threaded cylinder (71) disposed at the bottom of the rotating disk (55), a threaded column (72) connected to the internal threaded cylinder (71), a rack (73) connected to the threaded column (72), and an arc gear (74) disposed on the closed plate (41).

6. A calculation method based on a mechanical sensing calculation device for real-time monitoring of wetland ecological carbon sequestration according to any one of claims 1-5, characterized in that, Includes the following steps: Based on the gas analyzer (4), the first gas data is obtained in the closed acquisition mode and the second gas data is obtained in the open acquisition mode. The mapping relationship between the first gas data and the second gas data is obtained based on the pre-trained mapping model. Meteorological data of the area where the gas analyzer (4) is located is obtained, three-dimensional wind speed data of the area is collected by the three-dimensional anemometer (2), and meteorological data, three-dimensional wind speed data, second gas data obtained by open acquisition or second gas data obtained based on first gas data and mapping model are processed by the analysis module to obtain real-time carbon flux data, and carbon sink data is obtained based on real-time carbon flux data and historical carbon flux data. The training process of the mapping model includes: using a sensor device (5) to detect humidity and precipitation data; obtaining first gas data using a closed acquisition mode when air humidity and precipitation reach a preset threshold, and obtaining second gas data using an open acquisition mode when air humidity and precipitation do not reach the preset threshold; denoising the real-time gas data and historical gas data, and obtaining several historical datasets based on seasonal classification labels. and real-time datasets 'i' represents the seasonal classification, and the historical dataset is used for classification. The dataset is divided into a 70% training set and a 30% test set. The model is trained using a machine learning algorithm, and the total loss function is optimized to adjust the model parameters, resulting in a fully trained mapping model.

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