Solar-powered atmospheric pollutant monitoring device

Abstract

The invention relates to the field of atmospheric pollution monitoring equipment, and particularly discloses a solar-powered atmospheric pollutant monitoring device, which comprises a monitoring platform, an unmanned aerial vehicle main body and a digital display control panel, a sample detection assembly capable of adjusting a sample gas connection port up and down is arranged in the monitoring platform, and a sampling assembly is arranged on the lower side of the unmanned aerial vehicle main body. The upper side of the monitoring platform is provided with an unmanned aerial vehicle position adjusting assembly used for achieving position adjustment and clamping of the unmanned aerial vehicle body on the upper side surface of the unmanned aerial vehicle body, and the outer side of the monitoring platform is provided with a solar power supply assembly. The unmanned aerial vehicle body can sample atmospheric pollutants and then return to the monitoring platform for detection, so that the load of the unmanned aerial vehicle body is greatly reduced, and the flight detection stroke of the unmanned aerial vehicle body is improved.

Description

Technical Field

[0001] The present invention relates to the field of air pollution monitoring equipment, and in particular to an air pollutant monitoring device powered by solar energy. Background Art

[0002] Due to the complexity of the atmospheric environment, the source of pollutants in the atmosphere has always been a research problem. The traditional research method is to collect samples of pollution sources and conduct off-line analysis in the laboratory. Most gaseous air pollutants are extremely harmful to human health and even pose a carcinogenic risk. Moreover, when sudden environmental pollution events occur, environmental monitoring emergency personnel rush to the scene to collect samples, which takes a long time and has poor timeliness. Due to time differences, most of them cannot reflect the real pollutant emissions or leakage situations. Currently, fixed-point measurement and unmanned aerial vehicle (UAV) flight sampling are often used for sampling and monitoring.

[0003] An air pollutant monitoring device with the publication number of CN215116119U includes universal wheels, a base, a bracket, a cleaning box, a monitoring box, and a solar panel assembly. The base is arranged on the universal wheels, the bracket is arranged on the base, the cleaning box is arranged on the base, the monitoring box is arranged on the bracket, and the solar panel assembly is arranged on the monitoring box. The monitoring box includes a monitoring box body, a storage battery, a monitor, a ventilator, a warning sounder, and a warning light. The monitoring box body is arranged on the bracket;

[0004] A multi-rotor UAV air pollutant mobile monitoring system with the publication number of CN113895610A includes a UAV, and also includes a fixing device detachably installed at the bottom of the UAV, a multi-parameter air monitor detachably installed inside the fixing device, a limiting device detachably installed at the rear side of the top of the UAV, and a temperature and humidity meteorological sensor module detachably installed inside the limiting device;

[0005] However, currently, when using fixed-point measurement, due to differences in weather conditions and measurement height positions, the measurement accuracy is poor and the range is small. When using the UAV measurement method, installing a multi-parameter air monitor on the UAV will increase the overall weight, resulting in a small measurement range. Summary of the Invention

[0006] (1) Technical Problems to be Solved

[0007] The purpose of the present invention is to provide an air pollutant monitoring device powered by solar energy to solve the above problems.

[0008] (2) Technical Solutions

[0009] To achieve the above purpose, the present invention provides the following technical solutions:

[0010] The present invention provides a solar-powered atmospheric pollutant monitoring device, comprising a monitoring platform, an unmanned aerial vehicle (UAV) main body and a digital display control panel, wherein a sample detection component capable of adjusting a sample air inlet up and down is arranged in the monitoring platform, a sampling component is arranged at the lower side of the UAV main body, a UAV positioning component for realizing that the UAV main body is positioned and fixed on its upper surface is arranged at the upper side of the monitoring platform, a solar-powered power component is arranged at the outer side of the monitoring platform, and a positioning support frame for supporting the UAV main body to fall and cooperating with the UAV positioning component to adjust the position is arranged at the lower side of the UAV main body;

[0011] When the drone body lands on the monitoring platform and its position is adjusted and locked by the drone positioning component, the sampling interface of the sample detection component can be sealed and docked with the sampling port of the sampling component when it moves upward.

[0012] Furthermore, the sampling component includes a sampling box, and a box embedding groove for embedding the sampling box is provided on the bottom side of the drone body. An elastic diaphragm is provided in the sampling box to separate the interior of the box into an upper sampling chamber and a lower sampling chamber. The sampling box is provided with an air filling and deflation component for filling and deflation of the upper sampling chamber. A sampling air hole is provided on the lower side of the sampling box, and a first ventilation opening and closing structure is provided at the sampling air hole.

[0013] Furthermore, the inflation and deflation assembly includes a ventilation groove provided on the upper side of the embedded box groove, and a first air pump and a second air pump are respectively arranged in the ventilation groove, wherein an air outlet of the first air pump is connected to an upper sampling chamber, and an air inlet of the first air pump is connected to the ventilation groove, wherein an air inlet of the second air pump is connected to an upper sampling chamber, and an air outlet of the second air pump is connected to the ventilation groove, both ends of the ventilation groove are open and a breathable net is detachably arranged at the opening, and the output end of the digital display control panel is respectively electrically connected to the input end of the first air pump and the second air pump.

[0014] Furthermore, the first ventilation opening and closing structure includes a first column barrel fixedly arranged in the lower sampling chamber, one end of the first column barrel is open and the other end is closed, and the open end is connected to the sampling air hole, and two or more first air holes are formed on the side wall of the first column barrel near the sampling air hole, and a first telescopic channel is formed in the first column barrel, and a first piston for realizing opening and closing control of the first air hole is slidably arranged in the first telescopic channel, and a second cylinder for driving the first piston to slide and move therein is fixedly arranged in the first telescopic channel, when the second cylinder reaches the minimum stroke, the lower sampling chamber is connected to the outside through the first air hole and the first telescopic channel, and when the second cylinder reaches the maximum stroke, the first piston realizes the disconnection and closure of the first air hole and the first telescopic channel, and the output end of the digital display control panel is electrically connected to the input end of the second cylinder.

[0015] Furthermore, the positioning support frame includes more than four legs evenly distributed around the UAV body. The lower ends of the legs are fixedly connected to each other by an annular support frame. A plurality of magnet blocks are evenly arranged along the circumferential direction on the lower side of the annular support frame.

[0016] Furthermore, the sample detection assembly includes a detection column. A lifting hole is opened at the central axis of the monitoring platform. The detection column is slidably arranged in the lifting hole in the up and down direction. An opening through groove is opened through the lower side of the monitoring platform. The lower end of the detection column extends into the opening through groove and is fixedly connected with a support ear. A second electric telescopic rod is fixedly arranged in the opening through groove. The push rod head end of the second electric telescopic rod is fixedly connected with the support ear. The telescopic direction of the push rod of the second electric telescopic rod is consistent with the sliding direction of the detection column in the lifting hole. A second air vent opening and closing structure is arranged at the upper end of the detection column. A suction structure is arranged at the lower end of the detection column. A detection chamber is opened in the detection column between the suction structure and the second air vent opening and closing structure. A pressure sensor for detecting the air pressure therein and a detection sensor for detecting gas pollutants are respectively arranged in the detection chamber. The output ends of the pressure sensor and the detection sensor are respectively electrically connected to the input end of the digital display control panel. The output end of the digital display control panel is electrically connected to the input end of the second electric telescopic rod.

[0017] Furthermore, the suction structure includes a ventilation pipe arranged at the lower end of the detection column and capable of communicating the detection chamber with the outside. A third air pump is arranged on the ventilation pipe. A solenoid valve is arranged on the ventilation pipe between the detection chamber and the third air pump. The output end of the digital display control panel is respectively electrically connected to the input ends of the third air pump and the solenoid valve.

[0018] Furthermore, the second air vent opening and closing structure includes a second cylinder fixedly arranged in the detection chamber. One end of the second cylinder is open and the other end is closed, and the open end protrudes from the upper side surface of the detection column. A plurality of ventilation notches are opened at the edge of the end of the second cylinder protruding from the upper side surface of the detection column. More than two second air vent holes are opened on the side wall of the second cylinder located in the detection chamber. A second telescopic hole is formed in the second cylinder. A second piston for controlling the opening and closing of the second air vent holes is slidably arranged in the second telescopic hole. A third air cylinder for driving the second piston to slide in it is fixedly arranged in the second telescopic hole. When the third air cylinder reaches the minimum stroke, the detection chamber is communicated with the outside through the second air vent holes and the second telescopic hole. When the third air cylinder reaches the maximum stroke, the second piston disconnects and closes the second air vent holes and the inside of the second cylinder. The output end of the digital display control panel is electrically connected to the input end of the third air cylinder.

[0019] Furthermore, the UAV positioning component includes guide rails symmetrically distributed on both sides of the upper end of the monitoring platform. A chute is provided in the guide rail, and a slider is slidably arranged in the chute. A positioning push rod is fixedly arranged on the upper side of the slider, and an upper pressure plate is arranged on the upper side of the positioning push rod. An end of the guide rail is fixedly provided with a first cylinder for driving the slider to slide in the chute, and the output end of the digital display control panel is electrically connected to the input end of the first cylinder.

[0020] Furthermore, the top cover structure includes a rotating rod. The outer contour of the rotating rod is L-shaped. One end of the rotating rod is hinged to the monitoring platform through a first hinge seat, and a cover is fixedly arranged at the other end of the rotating rod. A first electric telescopic rod is hinged to the monitoring platform below the first hinge seat through a second hinge seat, and the push rod head of the first electric telescopic rod is hinged to the rotating rod. The output end of the digital display control panel is electrically connected to the input end of the first electric telescopic rod.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. Through the mutual cooperation and coordination of the monitoring platform, the UAV body, the sampling component, and the sample detection component, etc., the UAV body can sample atmospheric pollutants and then return to the monitoring platform for detection, thus greatly reducing the load of the UAV body and increasing the flight detection range of the UAV body;

[0024] 2. The upper sampling chamber is used to cooperate with the air charging and discharging component to form positive and negative pressures, so as to cooperate with the elastic diaphragm to realize the suction and exhaust operations of the lower sampling chamber. During suction, it is used to sample the surrounding atmosphere, and during exhaust, it realizes the discharge of the gas in the lower sampling chamber, thus avoiding the influence of the residual gas in the atmospheric lower sampling chamber on the sampling accuracy;

[0025] 3. The positioning support frame can play a role in stably supporting the UAV body during landing, and can also cooperate with the UAV positioning component to adjust the position of the UAV body and realize the clamping and fixing of the position of the UAV body;

[0026] 4. The first piston moves in the first cylinder, and the second piston moves in the second cylinder, so as to ensure that when the first cylinder and the second cylinder are docked, the residual redundant air in the cylinder is avoided, and the detection accuracy is not affected. Description of the drawings

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 is the front view structural schematic diagram of the present invention;

[0029] Figure 2 is the present invention Figure 1 's right view structural schematic diagram;

[0030] Figure 3 is the present invention Figure 1 's first-direction three-dimensional structural schematic diagram;

[0031] Figure 4 is the present invention Figure 2 's A-A cross-sectional structural schematic diagram;

[0032] Figure 5 is the present invention Figure 4 's partial enlarged structural schematic diagram at B;

[0033] Figure 6 is the present invention Figure 4 's partial enlarged structural schematic diagram at C;

[0034] Figure 7 is the cross-sectional structural schematic diagram of the drone body of the present invention;

[0035] Figure 8 is the present invention Figure 7 's partial enlarged structural schematic diagram at D;

[0036] Figure 9 is the present invention Figure 1 's second-direction three-dimensional structural schematic diagram.

[0037] The description of the attached drawing reference numerals is as follows: 1. Monitoring platform; 101. Mounting base plate; 102. Magnetic suction ring; 103. Open through groove; 2. Solar power supply component; 201. Fixed ring; 202. Support rod; 203. Solar cell; 3. UAV positioning component; 301. Guide rail; 302. First cylinder; 303. Slide block; 304. Chute; 305. Positioning push rod; 306. Upper pressure plate; 4. UAV main body; 5. Positioning support frame; 501. Leg; 502. Ring-shaped support frame; 503. Magnetic suction block; 6. Top cover structure; 601. Rotating rod; 602. Cover; 603. First electric telescopic rod; 604. First hinge seat; 605. Second hinge seat; 7. Sampling component; 701. Sampling box; 702. Elastic diaphragm; 703. Second cylinder; 704. First air pump; 705. Second air pump; 706. Ventilation groove; 707. Breathable net; 708. First cylinder; 709. First telescopic hole; 710. First ventilation hole; 711. First piston; 8. Sample detection component; 801. Detection column; 802. Detection chamber; 803. Pressure sensor; 804. Detection sensor; 805. Ventilation pipeline; 806. Third air pump; 807. Solenoid valve; 808. Second electric telescopic rod; 809. Support ear; 810. Second cylinder; 811. Second ventilation hole; 812. Third cylinder; 813. Second piston; 814. Sealing gasket; 815. Ventilation notch; 9. Digital display control panel. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts shall fall within the scope protected by the present invention.

[0039] See Figure 1-9As shown, the present invention provides a solar-powered atmospheric pollutant monitoring device, including a monitoring platform 1, a drone body 4 and a digital display control panel 9. The bottom side of the monitoring platform 1 is fixedly provided with more than four evenly distributed mounting base plates 101 along its edge, and each mounting base plate 101 is penetrated with a mounting hole. A sample detection component 8 capable of adjusting the sample air inlet up and down is arranged in the monitoring platform 1, a sampling component 7 is arranged at the lower side of the drone body 4, and a drone positioning component 3 for realizing the drone body 4 on its upper surface to be positioned and fixed is arranged at the upper side of the monitoring platform 1. A solar power supply component 2 is arranged on the outer side of the monitoring platform 1. At this time, the monitoring platform 1 and the drone body 4 can be used in actual applications. A positioning support frame 5 for supporting the drone body 4 to fall and cooperate with the drone positioning component 3 to adjust the position is arranged at the lower side of the drone body 4; when the drone body 4 falls on the monitoring platform 1 and its position is adjusted and fixed by the drone positioning component 3, the sampling interface of the sample detection component 8 can be sealed and docked with the sampling port of the sampling component 7 when it moves upward.

[0040] The solar power supply component 2 includes a fixed ring 201 fixedly arranged on the outside of the monitoring platform 1, and a plurality of evenly distributed solar cells 203 are arranged on the outside of the fixed ring 201 along its circumferential direction, and each solar cell 203 is fixed on the fixed ring 201 through a support rod 202.

[0041] See the instruction manual Figure 7 As shown, the sampling assembly 7 includes a sampling box 701, and a box embedding groove for embedding the sampling box 701 is provided on the bottom side of the drone body 4. An elastic diaphragm 702 is provided inside the sampling box 701 to separate the interior thereof into an upper sampling chamber and a lower sampling chamber. The sampling box 701 is provided with a gas charging and discharging assembly for realizing gas charging and discharging in the upper sampling chamber. The lower side of the sampling box 701 is provided with a sampling air hole, and a first ventilation opening and closing structure is provided at the sampling air hole. In practical applications, the upper sampling chamber is used to cooperate with the gas charging and discharging assembly to form positive and negative pressures, thereby cooperating with the elastic diaphragm 702 to realize the suction and exhaust operations of the lower sampling chamber, and is used to sample the surrounding atmosphere during suction, and to discharge the gas in the lower sampling chamber during exhaust.

[0042] The inflation and deflation assembly includes a ventilation groove 706 provided on the upper side of the embedded box groove, wherein the first air pump 704 and the second air pump 705 are respectively arranged in the ventilation groove 706, wherein the air outlet of the first air pump 704 is connected to the upper sampling chamber, and the air inlet of the first air pump 704 is connected to the ventilation groove 706, wherein the air inlet of the second air pump 705 is connected to the upper sampling chamber, and the air outlet of the second air pump 705 is connected to the ventilation groove 706, both ends of the ventilation groove 706 are open and a breathable net 707 is detachably provided at the opening, and the output end of the digital display control panel 9 is electrically connected to the input end of the first air pump 704 and the second air pump 705, respectively.

[0043] The first ventilation opening and closing structure includes a first cylinder 708 fixedly arranged in the lower sampling chamber. One end of the first cylinder 708 is open and the other end is closed, and the open end is in communication with the sampling air hole. More than two first ventilation holes 710 are formed in the side wall of the first cylinder 708 near the sampling air hole. A first telescopic channel 709 is formed in the first cylinder 708. A first piston 711 for controlling the opening and closing of the first ventilation holes 710 is slidably arranged in the first telescopic channel 709. A second cylinder 703 for driving the first piston 711 to slide therein is fixedly arranged in the first telescopic channel 709. When the second cylinder 703 reaches the minimum stroke, the lower sampling chamber is in communication with the outside through the first ventilation holes 710 and the first telescopic channel 709. When the second cylinder 703 reaches the maximum stroke, the first piston 711 disconnects and closes the first ventilation holes 710 and the first telescopic channel 709. The output end of the digital display control panel 9 is electrically connected to the input end of the second cylinder 703.

[0044] See the attached instruction manual Figure 7 As shown in the figure, the positioning support frame 5 includes more than four legs 501 evenly distributed around the UAV main body 4. An annular support frame 502 is fixedly connected between the lower ends of the legs 501. A number of magnetic attraction blocks 503 evenly distributed along the circumferential direction are arranged on the lower side of the annular support frame 502. Through the above specific structural design, the positioning support frame 5 can play a role in stably supporting the UAV main body 4 during landing, and can also cooperate with the UAV position adjustment assembly 3 to play a role in adjusting the position of the UAV main body 4, and realize the clamping and fixing of the position of the UAV main body 4.

[0045] See the attached instruction manual Figure 4 and Figure 5As shown, the sample detection component 8 includes a detection column 801 with a cylindrical shape. A lifting hole is provided at the central axis of the monitoring platform 1. The detection column 801 is slidably arranged in the lifting hole in the up and down direction. An opening through groove 103 is provided through the lower side of the monitoring platform 1. In practical applications, the gas discharged from the detection chamber 802 can be discharged into the external air through the opening through groove 103. The lower end of the detection column 801 extends into the opening through groove 103 and is fixedly connected with an ear 809. A second electric telescopic rod 808 is fixedly arranged in the opening through groove 103. The push rod head end of the second electric telescopic rod 808 is fixedly connected with the ear 809. The telescopic direction of the push rod of the second electric telescopic rod 808 is consistent with the sliding direction of the detection column 801 in the lifting hole. A second ventilation opening and closing structure is arranged at the upper end of the detection column 801, and a suction structure is arranged at the lower end of the detection column 801. A detection chamber 802 is provided in the detection column 801 between the suction structure and the second ventilation opening and closing structure. A pressure sensor 803 for detecting the air pressure therein and a detection sensor 804 for detecting gas pollutants are respectively arranged in the detection chamber 802. The output ends of the pressure sensor 803 and the detection sensor 804 are respectively electrically connected to the input end of the digital display control panel 9. The output end of the digital display control panel 9 is electrically connected to the input end of the second electric telescopic rod 808. The suction structure includes a ventilation pipe 805 arranged at the lower end of the detection column 801 and capable of realizing the communication between the detection chamber 802 and the outside. A third air pump 806 is arranged on the ventilation pipe 805. A solenoid valve 807 is arranged on the ventilation pipe 805 between the detection chamber 802 and the third air pump 806. The output end of the digital display control panel 9 is respectively electrically connected to the input ends of the third air pump 806 and the solenoid valve 807.The second ventilation opening and closing structure includes a second cylinder 810 fixedly arranged in the detection chamber 802. One end of the second cylinder 810 is open and the other end is closed, and the open end protrudes from the upper side surface of the detection column 801. A sealing gasket 814 sleeved on the outer side of the second cylinder 810 is arranged on the upper side surface of the detection column 801, which is used to realize the docking seal with the first cylinder 708, so as to ensure the tightness of the whole process when transferring the atmospheric sample. Moreover, a plurality of ventilation notches 815 are formed at the end edge of the second cylinder 810 protruding from the upper side surface of the detection column 801. Two or more second ventilation holes 811 are formed on the side wall of the second cylinder 810 located in the detection chamber 802. A second telescopic channel is formed in the second cylinder 810. A second piston 813 for controlling the opening and closing of the second ventilation holes 811 is slidably arranged in the second telescopic channel. A third cylinder 812 for driving the second piston 813 to slide in it is fixedly arranged in the second telescopic channel. When the third cylinder 812 reaches the minimum stroke, the detection chamber 802 is communicated with the outside through the second ventilation holes 811 and the second telescopic channel. When the third cylinder 812 reaches the maximum stroke, the second piston 813 realizes the disconnection and sealing between the second ventilation holes 811 and the inside of the second cylinder 810. The output end of the digital display control panel 9 is electrically connected to the input end of the third cylinder 812.

[0046] The drone positioning component 3 includes guide rails 301 symmetrically distributed on both sides of the upper end of the monitoring platform 1. A chute 304 is formed in the guide rail 301. A slider 303 is slidably arranged in the chute 304. A positioning push rod 305 is fixedly arranged on the upper side of the slider 303. An upper pressing plate 306 is arranged on the upper side of the positioning push rod 305. A first cylinder 302 for driving the slider 303 to slide in the chute 304 is fixedly arranged at the end of the guide rail 301. The output end of the digital display control panel 9 is electrically connected to the input end of the first cylinder 302. In practical applications, after the drone main body 4 lands on the monitoring platform 1, the first cylinder 302 drives the positioning push rod 305 to abut and push the annular support frame 502, so as to realize the positioning of the drone main body 4.

[0047] The top cover structure 6 includes a rotating rod 601. The outer contour of the rotating rod 601 is L-shaped. One end of the rotating rod 601 is hinged to the monitoring platform 1 through a first hinge seat 604. A covering 602 is fixedly arranged at the other end of the rotating rod 601. A first electric telescopic rod 603 is hingedly arranged on the monitoring platform 1 below the first hinge seat 604 through a second hinge seat 605. The push rod head end of the first electric telescopic rod 603 is hinged to the rotating rod 601. The output end of the digital display control panel 9 is electrically connected to the input end of the first electric telescopic rod 603. Through the above specific structural design, when the push rod of the first electric telescopic rod 603 reaches the maximum stroke, the covering 602 is located directly above the monitoring platform 1, so that the covering of the drone main body 4 on the monitoring platform 1 can be realized, blocking the sun, rain and so on, and realizing the protection of the drone main body 4.

[0048] Working principle:

[0049] During use, the UAV body 4 can fly out from the monitoring platform 1 to monitor pollutants in the surrounding three-dimensional space atmosphere. When sampling, when the UAV body 4 flies to a certain position height, it remains stationary. First, the push rod of the second cylinder 703 reaches the minimum stroke. At this time, the lower sampling chamber is communicated with the outside through the first ventilation hole 710, and the air outlet of the first air pump 704 is communicated with the upper sampling chamber. The first air pump 704 injects the gas of the outside air into the upper sampling chamber through the ventilation groove 706, so as to pressurize the upper sampling chamber. The elastic diaphragm 702 undergoes elastic deformation, so that the gas in the lower sampling chamber is discharged from the first ventilation hole 710 under the extrusion of the elastic diaphragm 702. After the gas in the lower sampling chamber is almost completely discharged, the second air pump 705 discharges the gas in the upper sampling chamber, so as to form a negative pressure in the upper sampling chamber, so that the elastic diaphragm 702 undergoes elastic deformation in the direction of the upper sampling chamber, thereby sucking the gas in the outside air into the lower sampling chamber through the first ventilation hole 710 for storage. After sampling, the second cylinder 703 drives the first piston 711 to close the first ventilation hole 710;

[0050] After the sampling is completed, the UAV main body 4 flies back to the monitoring platform 1. The magnetic attraction block 503 and the magnetic attraction ring 102 achieve the preliminary magnetic attraction connection of the UAV main body 4, playing a role in wind prevention and stabilization. Then, the UAV positioning component 3 adjusts the position of the UAV main body 4 on the upper surface of the monitoring platform 1, so that the sampling air hole and the upper end of the second cylinder 810 are vertically corresponding to each other. And when the positioning push rod 305 and the annular support frame 502 are in contact with each other, the upper pressure plate 306 can press and limit the upper side of the annular support frame 502, so that when the second cylinder 810 is inserted into the sampling air hole, the upward movement tendency of the UAV main body 4 can be avoided, playing a role in pressing and fixing the UAV main body 4. Then, the second electric telescopic rod 808 drives the detection column 801 to move upward, so that the top end of the second cylinder 810 is inserted into the sampling air hole. At this time, the third air pump 806 pumps out the gas in the detection chamber 802 to form a negative pressure state, which also avoids affecting the detection result. At this time, the second cylinder 703 cooperates to drive the first piston 711, so that the gas in the lower sampling chamber can enter the detection chamber 802 through the first ventilation hole 710, the ventilation notch 815 and the second ventilation hole 811. Then, the third cylinder 812 drives the second piston 813 to close the second ventilation hole 811 again, and the detection sensor 804 detects the gas in the detection chamber 802. The detection sensor 804 can adopt a sulfur dioxide sensor, a nitrogen oxide sensor, a volatile organic compound VOC sensor, a carbon monoxide sensor, a hydrogen sulfide sensor, a PM2.5 and PM10 sensor, etc., for detecting the situation of air pollutants. After the detection is completed, the third air pump 806 pumps out the gas in the detection chamber 802 again.

[0051] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A solar-powered atmospheric pollutant monitoring device, characterized in that: The invention comprises a monitoring platform (1), an unmanned aerial vehicle (UAV) body (4) and a digital display control panel (9); a sample detection component (8) capable of adjusting a sample air inlet up and down is arranged in the monitoring platform (1); a sampling component (7) is arranged on the lower side of the unmanned aerial vehicle (UAV) body; an unmanned aerial vehicle (UAV) positioning component (3) for realizing that the unmanned aerial vehicle (UAV) body (4) is positioned and fixed on its upper surface is arranged on the upper side of the monitoring platform (1); a solar power supply component (2) is arranged on the outer side of the monitoring platform (1); and a positioning support frame (5) for supporting the unmanned aerial vehicle (UAV) body to fall and for cooperating with the unmanned aerial vehicle (UAV) positioning component (3) to adjust its position is arranged on the lower side of the unmanned aerial vehicle (UAV) body; When the drone body (4) lands on the monitoring platform (1) and its position is adjusted and locked by the drone positioning component (3), the sampling interface of the sample detection component (8) can be sealed and docked with the sampling port of the sampling component (7) when it moves upward.

2. The solar-powered atmospheric pollutant monitoring device according to claim 1, characterized in that: The sampling component (7) comprises a sampling box (701), the bottom side of the drone body (4) is provided with a box embedding groove for embedding the sampling box (701), the sampling box (701) is provided with an elastic diaphragm (702) for dividing the interior of the sampling box into an upper sampling chamber and a lower sampling chamber, the sampling box (701) is provided with an air filling and deflation component for realizing air filling and deflation in the upper sampling chamber, the sampling box (701) is provided with a sampling air hole on the lower side, and the sampling air hole is provided with a first ventilation opening and closing structure.

3. The solar-powered air pollutant monitoring device according to claim 2, characterized in that: The inflation and deflation assembly comprises a ventilation groove (706) provided on the upper side of the embedded box groove, wherein a first air pump (704) and a second air pump (705) are respectively arranged in the ventilation groove (706), wherein the air outlet of the first air pump (704) is communicated with the upper sampling chamber, and the air inlet of the first air pump (704) is communicated with the ventilation groove (706), wherein the air inlet of the second air pump (705) is communicated with the upper sampling chamber, and the air outlet of the second air pump (705) is communicated with the ventilation groove (706), both ends of the ventilation groove (706) are open and a breathable net (707) is detachably arranged at the opening, and the output end of the digital display control panel (9) is respectively electrically connected to the input end of the first air pump (704) and the second air pump (705).

4. The solar-powered air pollutant monitoring device according to claim 2, characterized in that: The first ventilation opening and closing structure comprises a first column (708) fixedly arranged in the lower sampling chamber, one end of the first column (708) is open and the other end is closed, and the open end is connected to the sampling air hole, and two or more first ventilation holes (710) are formed on the side wall of the first column (708) near the sampling air hole, and a first telescopic channel (709) is formed in the first column (708), and a first piston (711) for realizing the opening and closing control of the first ventilation hole (710) is slidably arranged in the first telescopic channel (709), and the first telescopic channel (709) is provided with a first piston (711) for realizing the opening and closing control of the first ventilation hole (710). A second cylinder (703) is fixedly arranged in the contraction channel (709) for driving the first piston (711) to slide and move therein. When the second cylinder (703) reaches the minimum stroke, the downsampling chamber is connected to the outside through the first air vent (710) and the first telescopic channel (709). When the second cylinder (703) reaches the maximum stroke, the first piston (711) disconnects and closes the first air vent (710) and the first telescopic channel (709). The output end of the digital display control panel (9) is electrically connected to the input end of the second cylinder (703).

5. The solar-powered atmospheric pollutant monitoring device according to claim 1, characterized in that: The positioning support frame (5) comprises more than four legs (501) evenly distributed around the drone body (4), an annular support frame (502) being fixedly connected to each other at the lower ends of the legs (501), a plurality of evenly distributed magnetic blocks (503) being arranged on the lower side of the annular support frame (502) along its circumferential direction, and a magnetic ring (102) for cooperating with the magnetic block (503) being arranged on the upper surface of the monitoring platform (1).

6. The solar-powered air pollutant monitoring device according to claim 1, characterized in that: The sample detection assembly (8) comprises a detection column (801), a lifting channel is provided at the central axis of the monitoring platform (1), the detection column (801) is slidably arranged in the lifting channel along the up-down direction, an open through slot (103) is provided through the lower side of the monitoring platform (1), the lower end of the detection column (801) extends into the open through slot (103) and is fixedly connected with a support ear (809), a second electric telescopic rod (808) is fixedly arranged in the open through slot (103), a push rod head end of the second electric telescopic rod (808) and the support ear (809) are fixedly connected to each other, and the extension direction of the push rod of the second electric telescopic rod (808) is consistent with the sliding direction of the detection column (801) in the lifting channel. The detection column (801) is consistent with each other, the upper end of the detection column (801) is provided with a second ventilation opening and closing structure, the lower end of the detection column (801) is provided with a suction structure, and a detection chamber (802) is provided in the detection column (801) between the suction structure and the second ventilation opening and closing structure, and the detection chamber (802) is respectively provided with an air pressure sensor (803) for detecting the air pressure therein and a detection sensor (804) for detecting gaseous pollutants, the output ends of the air pressure sensor (803) and the detection sensor (804) are respectively electrically connected to the input end of the digital display control panel (9), and the output end of the digital display control panel (9) is electrically connected to the input end of the second electric telescopic rod (808).

7. The solar-powered air pollutant monitoring device according to claim 6, characterized in that: The suction structure comprises a ventilation pipe (805) arranged at the lower end of the detection column (801) and capable of connecting the detection chamber (802) with the outside, a third air pump (806) is arranged on the ventilation pipe (805), and a solenoid valve (807) is arranged on the ventilation pipe (805) between the detection chamber (802) and the third air pump (806), and the output end of the digital display control panel (9) is electrically connected to the input end of the third air pump (806) and the solenoid valve (807), respectively.

8. The solar-powered air pollutant monitoring device according to claim 6, characterized in that: The second ventilation opening and closing structure comprises a second column (810) fixedly arranged in the detection chamber (802), one end of the second column (810) is open and the other end is closed, and the open end protrudes from the upper surface of the detection column (801), and a plurality of ventilation notches (815) are provided at the edge of the end of the second column (810) protruding from the upper surface of the detection column (801), and the side wall of the second column (810) located in the detection chamber (802) is provided with more than two second ventilation holes (811), and a second telescopic channel is formed in the second column (810), and a second telescopic channel is slidably provided with a second ventilation hole for realizing the second ventilation. The second piston (813) is controlled by the opening and closing of the air hole (811); a third cylinder (812) is fixedly arranged in the second telescopic channel for driving the second piston (813) to slide therein; when the third cylinder (812) reaches the minimum stroke, the detection chamber (802) is connected to the outside through the second air hole (811) and the second telescopic channel; when the third cylinder (812) reaches the maximum stroke, the second piston (813) realizes the disconnection and closure of the second air hole (811) and the second column (810); the output end of the digital display control panel (9) is electrically connected to the input end of the third cylinder (812).

9. The solar-powered atmospheric pollutant monitoring device according to claim 1, characterized in that: The unmanned aerial vehicle positioning component (3) comprises guide rails (301) symmetrically distributed on both sides of the upper end of the monitoring platform (1), a slide groove (304) is provided in the guide rail (301), a slider (303) is slidably arranged in the slide groove (304), a positioning push rod (305) is fixedly arranged on the upper side of the slider (303), an upper pressure plate (306) is arranged on the upper side of the positioning push rod (305), a first cylinder (302) for driving the slider (303) to slide and move in the slide groove (304) is fixedly arranged at the end of the guide rail (301), and the output end of the digital display control panel (9) is electrically connected to the input end of the first cylinder (302).

10. The solar-powered air pollutant monitoring device according to claim 1, characterized in that: The top cover structure (6) comprises a rotating rod (601), the outer contour of the rotating rod (601) is L-shaped, one end of the rotating rod (601) is hinged to the monitoring platform (1) via a first hinge seat (604), the other end of the rotating rod (601) is fixedly provided with a cover (602), a first electric telescopic rod (603) is hingedly provided on the monitoring platform (1) below the first hinge seat (604) via a second hinge seat (605), the push rod head end of the first electric telescopic rod (603) is hinged to the rotating rod (601), and the output end of the digital display control panel (9) is electrically connected to the input end of the first electric telescopic rod (603).

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