An unmanned aerial vehicle assembled greenhouse gas monitoring device
By designing a prefabricated greenhouse gas monitoring device for drones, utilizing wind shields and electric fans for air collection, combined with magnetic connections and angle adjustment protection mechanisms, the problem of uneven concentration caused by gas flow during drone flight was solved, improving the accuracy and efficiency of monitoring data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANJIN ENVIRONMENT MONITORING CENT
- Filing Date
- 2023-10-11
- Publication Date
- 2026-05-12
AI Technical Summary
The drone's flight disrupts gas flow, leading to uneven concentrations of greenhouse gases in the air and affecting the accuracy of horizontal greenhouse gas monitoring data.
A UAV-based prefabricated greenhouse gas monitoring device was designed, including an outer frame, upper and lower frames, C-shaped support bars, cross arms, a central ring, a monitoring mechanism, and a wind collection mechanism. It utilizes a wind shield to block gas flow, an electric fan to collect air, and a detection head that is magnetically connected to a magnetic ring. Combined with angle adjustment, protection, and stabilization mechanisms, it ensures the accuracy and efficiency of monitoring.
It effectively reduces gas flow, improves the accuracy and efficiency of greenhouse gas monitoring, protects the detection head, avoids dust interference, and ensures data reliability.
Smart Images

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Abstract
Description
Technical Field
[0001] This invention relates to the field of gas monitoring, and more particularly to a drone-mounted greenhouse gas monitoring device. Background Technology
[0002] Greenhouse gases refer to gases in the atmosphere that absorb long-wave radiation reflected from the ground and then re-emit radiation, such as water vapor, carbon dioxide, and most refrigerants. Their role is to warm the Earth's surface, similar to how a greenhouse traps solar radiation and heats the air inside. Greenhouse gas monitoring is crucial for the scientific assessment of greenhouse gas emissions and the precise location of emission sources. Therefore, greenhouse gas monitoring devices are needed. With social development and progress, the application of drones is becoming increasingly widespread. Using drones for monitoring allows for both near-surface and vertical column concentration monitoring of greenhouse gases, effectively solving the monitoring difficulties of complex terrain and remote areas that are difficult to cover with traditional methods. However, during flight, drones can disrupt the vertical flow of gases, leading to uneven concentrations of greenhouse gases in the air and consequently, inaccurate data from horizontal greenhouse gas monitoring.
[0003] Therefore, there is a need to design a drone-mounted greenhouse gas monitoring device that can reduce gas flow and ensure the accuracy of greenhouse gas monitoring data. Summary of the Invention
[0004] To overcome the drawback that drones can agitate gas flow during flight, leading to uneven concentrations of greenhouse gases in the air and consequently inaccurate data in horizontal greenhouse gas monitoring, this invention provides a drone-mounted greenhouse gas monitoring device that can reduce gas flow and ensure the accuracy of greenhouse gas monitoring data.
[0005] A UAV-mounted greenhouse gas monitoring device includes an outer frame, upper and lower frames, C-shaped support bars, cross arms, a central ring, a monitoring mechanism, and a wind collection mechanism. The upper and lower frames are connected to the outer frame, and bolt holes are opened on the upper side of the upper and lower frames for fixing the device to the bottom of the UAV. Eight C-shaped support bars are connected to the middle of the upper and lower frames, and cross arms are connected to the lower part of the upper and lower frames. A central ring is connected to the middle of the cross arms. A monitoring mechanism for monitoring greenhouse gases is provided inside the central ring, and a wind collection mechanism for centralized monitoring of greenhouse gases is provided on the upper and lower frames.
[0006] Preferably, the monitoring mechanism includes a spherical motor, a gear, a connecting rod, a rear stabilizer plate, a rack, and a detection head. The spherical motor is rotatably connected to the inner side of the central ring. The gear is connected to the output shaft of the spherical motor. The connecting rods are connected to both the front and rear parts of the lower side of the spherical motor. The rear stabilizer plate is connected between the lower sides of the connecting rods. The rack is slidably connected to the rear stabilizer plate. The detection head is connected to the left side of the rack.
[0007] Preferably, the detection head includes a temperature sensor, a humidity sensor, and a gas sensor.
[0008] Preferably, the air collection mechanism includes an air shield, a straight rail, a magnetic ring, and an electric fan. The straight rail is snapped onto the left side of the upper and lower frames, the air shield is connected to the straight rail, the electric fan is slidably connected to the lower part of the straight rail, and the magnetic ring is connected to the right side of the electric fan. The magnetic ring is attracted and engaged with the detection head.
[0009] Preferably, it also includes an angle adjustment mechanism, which includes a cylinder, a pusher, a double-sided straight sleeve, a pitch arc, and a fixed rail arc. The cylinder extension ends on both sides of the outer frame are connected to pushers, and the pushers are connected to the double-sided straight sleeves. The pitch arc is movably connected to the middle of the double-sided straight sleeves. The lower side of the pitch arc is connected to a ball motor, and the upper side of the cross arm is connected to the fixed rail arc. The fixed rail arc and the pitch arc are slidably connected.
[0010] Preferably, a protective mechanism is also included, which includes an L-shaped lower arm, a long spring, a rotating arm, and a dirt cover. The L-shaped lower arm is connected to the lower left side of the rear stabilizer plate, and the rotating arm is rotatably connected to the left side of the L-shaped lower arm. A long spring is connected between the rotating arm and the L-shaped lower arm, and a dirt cover for protecting the detection head is connected to the upper part of the rotating arm. The dirt cover is in contact with the detection head.
[0011] Preferably, a stabilizing mechanism is also included, which includes support columns, clamping plates, and fixing rods. Support columns are connected to the outer frame, and clamping plates are connected to the upper part of each support column. Fixing rods are connected between the two clamping plates on the left and the two clamping plates on the right.
[0012] Preferably, a sampling mechanism is also included, which includes a bottle body, a top cover, a fixed door, and a movable door. Eight bottles are placed on the outer frame. The top cover is snapped onto the upper side of each bottle body. The fixed door is connected to the lower side of each bottle body. The movable door is rotatably connected to the fixed door. A small motor is connected to the lower side of the fixed door. The output shaft of the small motor is connected to the movable door.
[0013] The beneficial effects are: 1. The windproof cover of this invention can effectively block the airflow at the detection head of the drone during operation, thereby ensuring the accuracy of monitoring. At the same time, when the detection head extends to the left, it will contact the magnetic ring for magnetic connection, thereby driving the electric fan to move together. At this time, the operation of the electric fan will blow the air on the left to the right to achieve the wind collection effect, thereby improving the monitoring efficiency.
[0014] 2. During the monitoring process, when there is a foreign object blocking the view, the present invention can control the cylinder to operate, thereby driving the double-sided straight sleeve to move left and right through the push head, which in turn causes the curved arc to slide on the fixed track arc, thereby driving the spherical motor to swing, and then causing the detection head to swing up and down, thereby effectively clearing and avoiding foreign objects.
[0015] 3. The anti-fouling cover of this invention will cover the detection head, thereby protecting the detection head when no monitoring work is being carried out, and preventing dust from accumulating on the detection head, which would affect the monitoring results. When monitoring work is being carried out, the detection head moves to the left, which will push the anti-fouling cover and the rotating arm to swing, and the long spring will deform, thus no longer covering the detection head.
[0016] 4. The support column of this invention can hold the bottom of the drone, and the clamp can also clamp the support legs of the drone, thereby further stabilizing the drone and ensuring the monitoring results.
[0017] 5. When monitoring greenhouse gases, the present invention can place the bottle on the outer frame. When it reaches a certain height, the small motor can be controlled to drive the movable door to rotate and open, thereby collecting air samples for reference and ensuring the accuracy of monitoring. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0019] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.
[0020] Figure 3 This is a top-view three-dimensional structural diagram of the monitoring mechanism of the present invention.
[0021] Figure 4 This is a three-dimensional structural diagram of the monitoring mechanism of the present invention, viewed from below.
[0022] Figure 5 This is a three-dimensional structural diagram of the angle adjustment mechanism of the present invention.
[0023] Figure 6 This is an exploded three-dimensional structural diagram of the angle adjustment mechanism of the present invention.
[0024] Figure 7 This is a three-dimensional structural diagram of the air collection mechanism of the present invention.
[0025] Figure 8 This is a three-dimensional structural diagram of the protection mechanism of the present invention.
[0026] Figure 9 This is a three-dimensional structural diagram of the stabilizing mechanism of the present invention.
[0027] Figure 10 This is a three-dimensional structural diagram of the sampling mechanism of the present invention.
[0028] Explanation of reference numerals in the attached drawings: 1_Outer frame, 2_Upper and lower frames, 3_C-shaped support bar, 4_Cross arm, 5_Central ring, 6_Monitoring mechanism, 61_Spherical motor, 62_Gear, 63_Connecting rod, 64_Rear stabilizer plate, 65_Rack, 66_Detection head, 7_Air collection mechanism, 71_Air shield, 72_Straight rail, 73_Magnetic ring, 74_Electric fan, 8_Angle adjustment mechanism, 81_Cylinder, 82_Push head, 83_Double-sided straight sleeve, 84_Bending arc, 85_Fixed rail arc, 9_Protective mechanism, 91_L-shaped lower arm, 92_Long spring, 93_Rotating arm, 94_Pollution cover, 10_Stabilizing mechanism, 101_Support column, 102_Clamping plate, 103_Fixed connecting rod, 11_Sampling mechanism, 111_Bottle body, 112_Upper cover, 113_Fixed door, 114_Retractable door. Detailed Implementation
[0029] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.
[0030] A drone-mounted greenhouse gas monitoring device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, it includes an outer frame 1, upper and lower frames 2, C-shaped support bars 3, cross arms 4, a central ring 5, a monitoring mechanism 6, and a wind collection mechanism 7. The upper and lower frames 2 are connected to the outer frame 1. Bolt holes are opened on the upper side of the upper and lower frames 2 for fixing the device to the bottom of the drone. Eight C-shaped support bars 3 are connected to the middle of the upper and lower frames 2. The cross arms 4 are connected to the lower part of the upper and lower frames 2. The central ring 5 is connected to the middle of the cross arms 4. The monitoring mechanism 6 for monitoring greenhouse gases is installed inside the central ring 5. The wind collection mechanism 7 for centralized monitoring of greenhouse gases is installed on the upper and lower frames 2.
[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the monitoring mechanism 6 includes a spherical motor 61, a gear 62, a connecting rod 63, a rear stabilizing plate 64, a rack 65, and a detection head 66. The spherical motor 61 is rotatably connected to the inner side of the central ring 5. The gear 62 is connected to the output shaft of the spherical motor 61. The connecting rod 63 is connected to both the front and rear parts of the lower side of the spherical motor 61. The rear stabilizing plate 64 is connected between the lower sides of the connecting rod 63. The rack 65 is slidably connected to the rear stabilizing plate 64. The detection head 66 is connected to the left side of the rack 65. The detection head 66 includes a temperature sensor, a humidity sensor, and a gas sensor.
[0032] like Figure 1 and Figure 7As shown, the air collection mechanism 7 includes an air shield 71, a straight rail 72, a magnetic ring 73, and an electric fan 74. The straight rail 72 is snapped onto the left side of the upper and lower frame 2, and the air shield 71 is connected to the straight rail 72. The electric fan 74 is slidably connected to the lower part of the straight rail 72. The magnetic ring 73 is connected to the right side of the electric fan 74, and the magnetic ring 73 is attracted and engaged with the detection head 66.
[0033] When high-altitude gas monitoring is required inside the greenhouse, the device can be fixed to the bottom of the drone through the bolt holes on the upper and lower frame 2. Then, the drone can be driven to move the device to a high altitude. Subsequently, the spherical motor 61 is controlled to operate. The operation of the spherical motor 61 drives the gear 62 to rotate, which in turn drives the rack 65 to move to the left, causing the detection head 66 to extend to the left to monitor greenhouse gases. The windproof cover 71 can effectively block the airflow above and below the detection head 66 during the operation of the drone, thereby ensuring the accuracy of monitoring. At the same time, the leftward extension of the detection head 66 will also contact the magnetic ring 73 for magnetic connection, thereby driving the electric fan 74 to move together. At this time, the operation of the electric fan 74 will blow the air on the left to the right to achieve the air collection effect, thereby improving the monitoring efficiency.
[0034] like Figure 1 , Figure 5 and Figure 6 As shown, it also includes an angle adjustment mechanism 8, which includes a cylinder 81, a pusher 82, a double-sided straight sleeve 83, a bend pitch arc 84, and a fixed track arc 85. The extension and retraction ends of the cylinder 81 are connected to the left and right sides of the outer frame 1, and the pusher 82 is connected to both sides of the pusher 82. The double-sided straight sleeve 83 is connected between the pushers 82. The bend pitch arc 84 is movably connected to the middle of the double-sided straight sleeve 83. The lower side of the bend pitch arc 84 is connected to the ball motor 61. The upper side of the cross arm 4 is connected to the fixed track arc 85. The fixed track arc 85 and the bend pitch arc 84 are slidably connected.
[0035] During the monitoring process, when there is a foreign object blocking the view, the cylinder 81 can be controlled to operate, which in turn drives the double-sided straight sleeve 83 to move left and right through the push head 82, which in turn drives the curved arc 84 to slide on the fixed track arc 85, which in turn drives the ball motor 61 to swing, which in turn drives the detection head 66 to swing up and down, thereby effectively clearing and avoiding foreign objects.
[0036] like Figure 3 and Figure 8 As shown, it also includes a protection mechanism 9, which includes an L-shaped lower arm 91, a long spring 92, a rotating arm 93, and a dirt cover 94. The L-shaped lower arm 91 is connected to the lower left side of the rear stabilizer plate 64. The rotating arm 93 is rotatably connected to the left side of the L-shaped lower arm 91. The long spring 92 is connected between the rotating arm 93 and the L-shaped lower arm 91. The dirt cover 94 for protecting the detection head 66 is connected to the upper part of the rotating arm 93. The dirt cover 94 is in contact with the detection head 66.
[0037] Initially, the anti-fouling cover 94 covers the detection head 66, thus protecting the detection head 66 when no monitoring is being performed, and preventing dust from accumulating on the detection head 66 and affecting the monitoring results. When monitoring is being performed, the movement of the detection head 66 to the left will push the anti-fouling cover 94 and the rotating arm 93 to swing, causing the long spring 92 to deform and thus no longer cover the detection head 66. When the detection head 66 returns to its original position, the long spring 92 will return to its original position, causing the anti-fouling cover 94 and the rotating arm 93 to rotate in the opposite direction and return to their original position, thus covering the detection head 66 again.
[0038] like Figure 1 and Figure 9 As shown, it also includes a stabilizing mechanism 10, which includes a support column 101, a clamping plate 102 and a fixed connecting rod 103. The outer frame 1 is connected to the support column 101, and the upper part of the support column 101 is connected to the clamping plate 102. The two clamping plates 102 on the left and the two clamping plates 102 on the right are connected to the fixed connecting rod 103.
[0039] The support column 101 can hold the bottom of the drone, and the clamp 102 can also clamp the drone's support legs, thereby further stabilizing the drone and ensuring the monitoring results.
[0040] like Figure 1 and Figure 10 As shown, it also includes a sampling mechanism 11, which includes a bottle body 111, a top cover 112, a fixed door 113, and a movable door 114. Eight bottles 111 are placed on the outer frame 1. The top cover 112 is snapped onto the upper side of each bottle body 111. The fixed door 113 is connected to the lower side of each bottle body 111. The movable door 114 is rotatably connected to each fixed door 113. A small motor is connected to the lower side of the fixed door 113. The output shaft of the small motor is connected to the movable door 114.
[0041] When monitoring greenhouse gases, the bottle 111 can be placed on the outer frame 1. When it reaches a certain height, the small motor can be controlled to drive the movable door 114 to rotate and open, thereby collecting air samples for reference and ensuring the accuracy of monitoring. After collection, the small motor can be controlled to drive the movable door 114 to rotate and close.
[0042] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.
Claims
1. A drone-mounted greenhouse gas monitoring device, characterized in that it includes: It has an outer frame (1), upper and lower frames (2), C-shaped support bars (3), cross arms (4), central ring (5), monitoring mechanism (6) and wind collection mechanism (7). The upper and lower frames (2) are connected to the outer frame (1). Bolt holes are opened on the upper side of the upper and lower frames (2) for fixing the device to the bottom of the drone. Eight C-shaped support bars (3) are connected to the middle of the upper and lower frames (2). Cross arms (4) are connected to the lower part of the upper and lower frames (2). Central ring (5) is connected to the middle of the cross arms (4). The monitoring mechanism (6) for monitoring greenhouse gases is provided in the central ring (5). The wind collection mechanism (7) for centralized monitoring of greenhouse gases is provided on the upper and lower frames (2). The monitoring mechanism (6) includes a ball motor (61), a gear (62), a connecting rod (63), a rear stabilizer plate (64), a rack (65), and a detection head (66). The ball motor (61) is rotatably connected to the inner side of the central ring (5). The gear (62) is connected to the output shaft of the ball motor (61). The connecting rod (63) is connected to both the front and rear sides of the lower side of the ball motor (61). The rear stabilizer plate (64) is connected between the lower sides of the connecting rod (63). The rack (65) is slidably connected to the rear stabilizer plate (64). The detection head (66) is connected to the left side of the rack (65). The air collection mechanism (7) includes an air shield (71), a straight rail (72), a magnetic ring (73) and an electric fan (74). The left side of the upper and lower frame (2) is connected to the straight rail (72), the air shield (71) is connected to the straight rail (72), the electric fan (74) is slidably connected to the lower part of the straight rail (72), the magnetic ring (73) is connected to the right side of the electric fan (74), and the magnetic ring (73) is attracted to the detection head (66). It also includes an angle adjustment mechanism (8), which includes a cylinder (81), a pusher (82), a double-sided straight sleeve (83), a pitch arc (84), and a fixed track arc (85). The left and right sides of the outer frame (1) are connected to cylinders (81), and the extension and retraction ends of the cylinders (81) are connected to pushers (82). The pushers (82) are connected to each other by double-sided straight sleeves (83). The middle of the double-sided straight sleeves (83) is movably connected to the pitch arc (84). The lower side of the pitch arc (84) is connected to the ball motor (61), and the upper side of the cross arm (4) is connected to the fixed track arc (85). The fixed track arc (85) and the pitch arc (84) are slidably connected.
2. The UAV-mounted greenhouse gas monitoring device as described in claim 1, characterized in that, The detection head (66) includes a temperature sensor, a humidity sensor and a gas sensor.
3. The UAV-mounted greenhouse gas monitoring device as described in claim 2, characterized in that, It also includes a protection mechanism (9), which includes an L-shaped lower arm (91), a long spring (92), a rotating arm (93), and a dirt cover (94). The lower left side of the rear stabilizer plate (64) is connected to the L-shaped lower arm (91), and the left side of the L-shaped lower arm (91) is rotatably connected to the rotating arm (93). The rotating arm (93) and the L-shaped lower arm (91) are connected to the long spring (92), and the upper part of the rotating arm (93) is connected to a dirt cover (94) for protecting the detection head (66). The dirt cover (94) is in contact with the detection head (66).
4. The UAV-mounted greenhouse gas monitoring device as described in claim 3, characterized in that, It also includes a stabilizing mechanism (10), which includes a support column (101), a clamping plate (102) and a fixed connecting rod (103). The support column (101) is connected to the outer frame (1), and the upper part of the support column (101) is connected to the clamping plate (102). The two clamping plates (102) on the left side and the two clamping plates (102) on the right side are connected to the fixed connecting rod (103).
5. The UAV-mounted greenhouse gas monitoring device as described in claim 4, characterized in that, It also includes a sampling mechanism (11), which includes a bottle body (111), a top cover (112), a fixed door (113) and a movable door (114). Eight bottles (111) are placed on the outer frame (1). The top cover (112) is snapped onto the upper side of each bottle body (111). The fixed door (113) is connected to the lower side of each bottle body (111). The movable door (114) is rotatably connected to each fixed door (113). A small motor is connected to the lower side of the fixed door (113). The output shaft of the small motor is connected to the movable door (114).