A device for continuously collecting dust from broad-leaved plant leaves and an operating method thereof

Abstract

The present invention discloses a broad-leaved plant leaf dust continuous collection device and an operation method thereof, comprising a dust collector, a primary filter screen, a secondary filter screen, a secondary filter screen interface, a leak-proof sealing ring, a collection pipe, a connecting pipe, an electric energy storage device, a rain shielding plate / light shielding plate, a rain sensor, a light source sensor, a reel, a controller, connecting wires, a solar panel, a collection box, a collection bottle, a door leaf, a door handle, and a door lock. The device is powered by solar energy and can continuously, effectively, accurately, and comprehensively collect all dust particles on the leaf surface of broad-leaved plants, and can also collect dust particles absorbed by leaf pores, and effectively isolate other impurities such as rainfall, plant residues, and large particles, thereby greatly improving the accuracy of collecting dust on broad-leaved plant leaves.

Description

Technical Field

[0001] The invention belongs to the technical field of ecological environment monitoring, and relates to a device for continuously collecting dust from broad-leaved plant leaves and an operating method thereof. Background Art

[0002] Atmospheric dust refers to particulate matter that naturally settles under air environmental conditions by gravity. As the most important material exchange process between the earth's crust and the atmosphere, it has always been a hot topic and difficult problem in the fields of atmospheric science, ecological environment and chemistry. my country has a huge amount of atmospheric dust. Except for areas with strong sandstorms, the arithmetic average of my country's dust is 14.73 tons / (square kilometer·month). Areas with less than 20 tons / (square kilometer·month) are mostly concentrated in coastal areas, the middle and lower reaches of the Yangtze River and the Northeast Plain. The dust in the North China Plain, the Inner Mongolia Plateau and the Junggar Basin is relatively high. The area with the largest dust is located in the Tarim Basin in Xinjiang, with a maximum value of 2,915.96 tons / (square kilometer·month).

[0003] The harm of atmospheric dust to plants is divided into two aspects: physical harm and chemical harm. The physical harm is manifested in that when dust falls on plant leaves, it will block the plant stomata, causing necrotic spots, reducing the chlorophyll content in the plant, and further leading to a decrease in photosynthesis rate; secondly, the stomata of vegetation are blocked by dust particles, which reduces the stomatal conductance, affects the absorption of CO2, and thus reduces the respiration rate of plants. At the same time, it may also increase the surface temperature of leaves, thereby hindering the metabolism and water cycle balance of plants. Chemical harm is manifested in the harm of heavy metals in dust to plants. When heavy metal elements enter the plant body, they will damage plant cells and enzyme systems, thereby affecting the biological characteristics and physiological functions of plants.

[0004] After searching, there are patents for the technology of collecting plant dust, such as Chinese patent application number: CN201611230184.6, application date: December 28, 2016, and the name of the invention is: A method for collecting and quantifying dust on plant leaf surfaces. The method provided by the invention can effectively and accurately collect all dust on plant leaf surfaces, and can quantitatively weigh and obtain the amount of dust per unit area of ​​leaf surface. Compared with the existing methods, this method greatly reduces the loss of dust, avoids errors to a great extent, makes the measurement results more accurate, and can also obtain dust samples for physical and chemical analysis. However, after the leaves involved in this method are dried, the leaf area S is measured with a leaf area meter, which easily leads to a reduction in leaf area. In addition, collecting leaves into a syringe will lose part of the dust, and some small plant and animal residues on the leaves will increase the error of dust. Moreover, this application can only collect dust from leaves once (rainfall will wash away the dust from the leaves), and cannot collect dust from leaves over a period of time.

[0005] After searching, there are patents disclosed about the technology of collecting precipitation and dust, such as Chinese patent application number: 2009100895881, application date: July 22, 2009, and the name of the invention is: Fully automatic dust collector collection method. The application discloses a fully automatic dust collector and collection method. The collector of the application does not require external power, can automatically collect and record relevant data, but is only suitable for collecting atmospheric dust, and cannot determine the amount of dust trapped by the blades and the amount of dust absorbed.

[0006] From the above, it can be seen that there is an urgent need to develop a method that can effectively, accurately and long-term collect all dust particles on the plant leaf surface, absorb dust particles by leaves, and quantitatively obtain the amount of dust per unit area of ​​leaf surface, and at the same time use the collected dust for physical and chemical analysis to meet experimental needs. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects in the prior art that leaf dust sampling can only collect dust once in the field, the sample sampling amount is insufficient, the preservation effect is poor, and the detection result is affected, and to provide a broad-leaved plant leaf dust continuous collection device and an operation method thereof. The device is powered by solar energy and can continuously, effectively, accurately and comprehensively collect all dust particles on the leaf surface of broad-leaved plants. At the same time, it can collect dust particles absorbed by leaf pores and effectively isolate other impurities such as rainfall, plant residues, large particles, etc., thereby greatly improving the accuracy of collecting dust on broad-leaved plant leaves.

[0008] The technical solution is as follows:

[0009] A device for continuously collecting dust from broad-leaved plant leaves, comprising a dust collector 1, a primary filter 103, a secondary filter 104, a secondary filter interface 105, a leak-proof sealing ring 106, a collection pipe 107, a connecting pipe 108, an electric energy storage device 2, a rain shielding plate / light shielding plate 201, a rain sensor 202, a light source sensor 203, a reel 204, a controller 205, a connecting wire 206, a solar panel 207, a collection box 3, a collection bottle 301, a door leaf 302, a door handle 303, and a door lock 304; the electric energy storage device 2 is located at the bottom of the collection box 3; a collection pipe 107 is provided at the bottom dust outlet end of the dust collector 1, a secondary filter 104 is provided at the bottom of the collection pipe 107, and the bottom of the collection pipe 107 is connected to the collection pipe 108. The second filter screen 104 is connected to the dust collector 1; the connecting pipe 108 is the outer ring of the collecting pipe 107; the interface of the second filter screen 104 is provided with a leakproof sealing ring 106; the rain sensor 202 is arranged outside the dust collector 1; the rain sensor 202 is electrically connected to the rain shield plate / light shield plate 201 and the controller 205; the light source sensor 203 is arranged outside the dust collector 1; the light source sensor 203 rain shield plate / light shield plate 201 and the controller 205 are electrically connected; the rain sensor 202, the light source sensor 203, the rain shield plate / light shield plate 201 and the electric energy storage device 2 are connected by a connecting wire 206; the reel 204 is connected to the controller 205; the solar panel 207 is located on the collecting box 3;

[0010] The dust collector 1 includes a dust-trapping dust collector 101 and an absorption dust collector 102, wherein the dust-trapping dust collector 101 is used to simulate the surface of a blade with pores, and the absorption dust collector 102 is used to simulate the surface of a blade without considering whether there are pores;

[0011] The rain shield / light shield 201 is retractable, a primary filter 103 is provided between the top of the dust collector 101 and the rain shield / light shield 201, and a primary filter 103 is provided between the top of the dust collector 102 and the rain shield / light shield 201;

[0012] A collecting bottle 301 is provided inside the collecting box 3 , a door leaf 302 is provided on the collecting box 3 , and a door handle 303 and a door lock 304 are provided on the door leaf 302 .

[0013] Furthermore, the upper surface of the dust collector 1 is elliptical, with a major axis length of 15 cm, a minor axis length of 10 cm, and a height of 1.5 cm, and the lower part of the dust collector 1 is funnel-shaped.

[0014] Furthermore, the minimum square mesh of the primary filter 103 is 1*1 mm. 2 The minimum square mesh of the secondary filter 104 is 0.5*0.5mm 2 The filter materials of the primary filter 103 and the secondary filter 104 are both nylon.

[0015] Furthermore, the leakproof sealing ring 106 is annular, the difference between the inner diameter and the outer diameter of the ring is 5 mm, and the thickness is 5 mm; the height of the secondary filter interface part is 3 cm, and the secondary filter 104 is placed 5 mm away from the bottom of the interface.

[0016] Furthermore, the diameters of the inner rings of the rainfall sensor 202, the light source sensor 203, the controller 205 and the reel 204 are all 1 cm, the length of the reel is 11 cm, the length of the shielding plate rolled up by the reel is 15.7 cm, and the widest width is 10 cm.

[0017] Furthermore, the rain shield / light shield 201 is elliptical, with a major axis length of 15.7 cm, a minor axis length of 10 cm, and a thickness of 1 mm. The rain shield / light shield 201 is 0.3 cm away from the primary filter 103, and the top of the dust collector 1 is 1 cm away from the primary filter 103.

[0018] Furthermore, the collecting box 3 is 60 cm long, 40 cm wide and 50 cm high, the collecting bottle 301 has a mouth diameter of 2.5 cm and a height of 3 cm, the inner diameter of the bottom of the collecting bottle 301 is 15 cm, and the height of the collecting bottle is 30 cm.

[0019] Furthermore, the door leaf 302 has two leaves, each of which is 40 cm high and 25 cm wide. A door lock 304 is located in the middle of the central axis between the two door leaves, and door handles 303 are located 3 cm on the left and right sides of the door lock.

[0020] Furthermore, the connecting pipe 108 is made of a stainless steel metal hose.

[0021] Furthermore, the inner wire of the connecting wire 206 is made of copper, and the outer part is wrapped by plastic.

[0022] An operating method of a broad-leaved plant leaf dust continuous collection device comprises the following steps:

[0023] Step 1. Place the device on a horizontal surface in the open air, use a key to open the door lock 304, pull the door handle 303 outward, open the door leaf 302, place the two collection bottles 301 on the lower ends of the left and right collection tubes 107 respectively, and then connect the connecting wires 206 to the energy storage device 2, so that the rain shielding plate / light shielding plate 201, the rain sensor 202, the light source sensor 203, the reel 204, and the controller 205 are all powered on, so that the plant leaf dust continuous collection device is in working state, and then close the door leaf 302 and lock the door lock 304 with a key.

[0024] Step 2: When the rainfall sensor 202 or the light source sensor 203 senses rainfall or light radiation intensity greater than 1500 μmol·m -2 ·s-1 When the controller 205 is turned on, the scroll 204 rotates counterclockwise, the rain shielding plate / light shielding plate opens and shields the collector. At this time, the air dust cannot enter the dust collector 101 and the absorption collector 102, and the plant leaf dust continuous collection device is in a state of not collecting dust. When the rain sensor 202 or the light source sensor 203 does not sense rainfall or the light radiation intensity is less than 1500 μmol·m -2 ·s -1 When the controller 205 is turned on, the reel 204 rotates clockwise, the rain shielding plate / light shielding plate 201 is retracted, and the dust collector starts to continue collecting dust.

[0025] Step 3, after the collection device is placed for a period of time, dust samples can be collected. Before collecting samples, keep the rain sensor 202 dry, and shield the light source sensor 203. After the rain shield / light shield 201 is put away, disconnect the connecting wire 206 from the electric energy storage device 2, first use the ear cleaning ball to blow air inward along the upper surface of the dust collector 101 and 102, blow the dust retained on the surface of the dust collector into the secondary filter 104, then remove the secondary filter interface 105, and then inject water into the lower collection pipe mouth, and flush the dust on the pipe wall into the collection bottle 301 to avoid waste.

[0026] Step 4: Use the key to unlock the door lock 304, pull the door handle 303 outward and open the door leaf 302, take out the collection bottle 301 and cap it, number the collection bottle and send it to the laboratory for dust reduction analysis.

[0027] Step 5: Place two new collection bottles 301 at the lower ends of the left and right collection tubes 107, close the door leaf 302, and then lock the door to prevent the collected samples from being destroyed by natural or human factors. At this time, the plant leaf dust continuous collection device starts collecting samples for the next period of time.

[0028] Step 6: Repeat the above steps 2-5 to complete the sample collection work for the next period, and so on.

[0029] Beneficial effects of the present invention:

[0030] The plant leaf dust continuous collection device of the present invention adopts two dust collector devices, one for simulating leaf dust retention (dust retention collector 101), and the other for simulating the amount of dust absorbed by leaf pores (absorption collector 102), which can more accurately quantify the amount of dust absorbed by leaves.

[0031] The plant leaf dust continuous collection device of the present invention and the design of the rain shielding plate can block the rain and eliminate the influence of the substances in the rain on the dust elements;

[0032] The plant leaf dust continuous collection device of the present invention has a light shielding plate design that can simulate the stomata closing state of the plant during its lunch break, thereby reducing the absorption of dust by the stomata.

[0033] The connecting pipe of the plant leaf dust continuous collection device of the present invention is a stainless steel metal hose, and the dust collector can be set to pitch and rotate 360 ​​degrees in any direction according to the sun's altitude or the year-round wind direction as required by research.

[0034] The plant leaf dust continuous collection device of the present invention uses an ear-cleaning bulb to blow air along the upper surface of the dust collector before collecting samples, so that the collected dust on the tube wall is blown into the secondary filter screen, and then the secondary filter screen interface is removed, and water is injected into the lower collection pipe mouth to flush the dust on the tube wall into the collection bottle to avoid waste.

[0035] The plant leaf dust continuous collection device of the present invention uses solar energy to provide power for each power mechanism, does not require an external power supply, and can be used for a long time in the wild. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic structural diagram of a plant leaf dust continuous collection device of the present invention;

[0037] Figure 2 It is a schematic diagram of the structure of the light shielding plate and the rain shielding plate of the present invention;

[0038] Figure 3 It is a schematic diagram of the structure of the light shielding plate and the rain shielding plate reel of the present invention;

[0039] Figure 4 It is a schematic diagram of the working state of the covering device of the present invention;

[0040] Figure 5 It is a structural schematic diagram of the secondary filter interface of the present invention;

[0041] Figure 6 It is a schematic structural diagram of the collecting bottle of the present invention. DETAILED DESCRIPTION

[0042] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] Reference Figure 1-Figure 6, a device for continuously collecting dust from broad-leaved plant leaves, comprising a dust collector 1, a primary filter 103, a secondary filter 104, a secondary filter interface 105, a leak-proof seal 106, a collection pipe 107, a connecting pipe 108, an energy storage device 2, a rain shield / light shield 201, a rain sensor 202, a light source sensor 203, a reel 204, a controller 205, a connecting wire 206, a solar panel 207, a collection box 3, a collection bottle 301, a door leaf 302, a door handle 303, and a door lock 304; the energy storage device 2 is located at the bottom of the collection box 3. Since the circuit of the present invention consumes very little power, the present invention uses solar energy to power various powers, which can be used for long-term outdoor use; dust collector The bottom dust outlet end of the dust collector 1 is provided with a collecting pipe 107, the bottom of the collecting pipe 107 is provided with a secondary filter 104, and the bottom of the collecting pipe 107 is connected to the collecting bottle 301; the connecting pipe 108 is the outer ring of the collecting pipe 107, and the material is a stainless steel metal hose. The interface of the secondary filter 104 is provided with a leak-proof sealing ring 106, the rain sensor 202 is arranged outside the dust collector 1, and the rain sensor 202 is electrically connected to the rain shielding plate / light shielding plate 201 and the controller 205, the light source sensor 203 is arranged outside the dust collector 1, and the light source sensor 203 rain shielding plate / light shielding plate 201 and the controller 205 are electrically connected, and the radiation intensity of the light source is set to 1500μmol·m when it is greater than the light saturation point -2 ·s -1 , when the light saturation point of the general plant is less than this value, the light shielding plate opens to cover the dust collector with stomata; when the radiation intensity of the light source is less than the light saturation point, the light shielding plate is retracted to simulate the leaf stomata device to absorb dust. The rainfall sensor is arranged outside the dust collector 1 and the electric energy storage device 2, and is electrically connected to the rainfall shielding plate and the controller. When the rainfall sensor senses rainfall, the rainfall shielding plate opens to cover the dust collector; when there is no rainfall, the rainfall shielding plate is retracted, and the dust collector starts to continue collecting dust.

[0044] like Figure 2As shown, the upper surface of the dust collector 1 is elliptical, with a major axis length of 15 cm, a minor axis length of 10 cm, and a height of 1.5 cm. It includes a dust-trapping dust collector 101 and an absorption dust collector 102, wherein the dust-trapping dust collector 101 is used to simulate the surface of a blade with pores, and the absorption dust collector 102 is used to simulate the surface of a blade without considering whether there are pores. The lower part of the dust collector 1 is funnel-shaped. The rainfall sensor 202, the light source sensor 203, the rainfall shielding plate / light shielding plate 201 and the electric energy storage device 2 are connected by a connecting wire 206, which is placed inside the instrument to prevent wind, sun or external interference from damaging the circuit. The reel 204 is connected to the controller 205; the solar panel 207 is located on the collection box 3; a primary filter 103 is provided between the top of the dust collector 101 and the rain shield / light shield 201, and a primary filter 103 is provided between the top of the absorption dust collector 102 and the rain shield / light shield 201, the rain shield / light shield 201 and the primary filter 103 are 0.3 cm apart, and the primary filter 103 and the secondary filter 104 are made of nylon to avoid affecting the subsequent determination of heavy metal elements in the collected samples. Avoid affecting the subsequent determination of heavy metal elements in the collected samples. The top of the dust collector 1 is 1 cm away from the primary filter 103. The primary filter 103 (the smallest square grid is 1*1mm 2 ) and secondary filter 104 (the smallest square mesh is 0.5*0.5mm 2 );like Figure 3 As shown, the diameter of the inner ring of the rain sensor 202, the light sensor 203, the controller 205, and the reel 204 are all 1 cm, the reel length is 11 cm, the shielding plate rolled by the reel is 15.7 cm long, and the widest width is 10 cm. The inner wire of the connecting wire 206 is copper and the outer part is wrapped by plastic.

[0045] like Figure 4 As shown, the rain shielding plate / light shielding plate 201 is retractable, and the rain shielding plate / light shielding plate 201 is elliptical, with a major axis length of 15.7 cm, a minor axis length of 10 cm, and a thickness of 1 mm. When the rain sensor 202 or the light source sensor 203 senses that the intensity of rainfall or light radiation is greater than 1500 μmol·m -2 ·s -1 When the controller 205 is turned on and drives the scroll 204 to rotate counterclockwise, the rain shielding plate / light shielding plate opens and shields the collector; when the rain sensor 202 or the light source sensor 203 does not sense rain or the light radiation intensity is less than 1500 μmol·m -2 ·s -1 When the controller 205 is turned on, the reel 204 rotates clockwise, the rain shielding plate / light shielding plate is retracted, and the dust collector starts to continue collecting dust.

[0046] like Figure 5As shown, the leakproof sealing ring 106 is annular, the difference between the inner diameter and the outer diameter of the ring is 5mm, and the thickness is 5mm; the height of the secondary filter screen interface part is 3cm, and the secondary filter screen 104 is placed 5mm away from the bottom of the interface. Before collecting samples, open the interface, first use an ear-washing bulb to blow along the upper surface of the dust collector, blow the collected dust on the pipe wall into the secondary filter screen, then remove the secondary filter screen interface 105, inject water into the lower collection pipe mouth, and flush the dust on the pipe wall into the collection bottle to avoid waste.

[0047] like Figure 6 As shown, the collection box 3 is 60 cm long, 40 cm wide and 50 cm high. A collection bottle 301 is arranged inside the collection box 3. A door leaf 302 is arranged on the collection box 3. A door handle 303 and a door lock 304 are arranged on the door leaf 302. There are two door leaves 302, which are 40 cm high and 25 cm wide. The middle of the central axis between the two door leaves is the door lock 304. The door handle 303 is 3 cm on the left and right sides of the door lock. Before and after replacing the collection bottle, the door lock is opened with a key, and the door lock is closed at other times. This can prevent the collected samples from being destroyed by natural or human causes.

[0048] The above is only a preferred specific implementation manner of the present invention, and the protection scope of the present invention is not limited thereto. Any simple change or equivalent replacement of the technical solution that can be obviously obtained by any technician familiar with the technical field within the technical scope disclosed in the present invention falls within the protection scope of the present invention.

Claims

1. A device for continuously collecting dust from broad-leaved plant leaves, characterized in that: The invention comprises a dust collector (1), a dust-retaining dust collector (101), an absorption dust collector (102), a primary filter (103), a secondary filter (104), a secondary filter interface (105), a leak-proof sealing ring (106), a collection pipe (107), a connecting pipe (108), an electric energy storage device (2), a rain shield / light shield (201), a rain sensor (202), a light source sensor (203), a reel (204), a controller (205), connecting wires (206), a solar panel (207), a collection box (3), a collection bottle (301), a door leaf (302), a door handle (303), and a door lock (304); the electric energy storage device (2) is located at the bottom of the collection box (3); a collection pipe (107) is provided at the bottom dust outlet end of the dust collector (1), a secondary filter (104) is provided at the bottom of the collection pipe (107), and a secondary filter (104) is provided at the bottom of the collection pipe (107). ) is connected to the collecting bottle (301); the connecting pipe (108) is the outer ring of the collecting pipe (107); the interface of the secondary filter (104) is provided with a leakproof sealing ring (106); the rain sensor (202) is arranged outside the dust collector (1); the rain sensor (202) is electrically connected to the rain shielding plate / light shielding plate (201) and the controller (205); the light source sensor (203) is arranged outside the dust collector (1); the light source sensor (203) is electrically connected to the rain shielding plate / light shielding plate (201) and the controller (205); the rain sensor (202), the light source sensor (203), the rain shielding plate / light shielding plate (201) and the electric energy storage device (2) are connected by a connecting wire (206); the reel (204) and the controller (205) are connected; the solar panel (207) is located on the collecting box (3); The dust collector (1) comprises a dust-trapping dust collector (101) and an absorption dust collector (102), wherein the dust-trapping dust collector (101) is used to simulate a blade surface with pores, and the absorption dust collector (102) is used to simulate a blade surface without considering whether there are pores. The rain shielding plate / light shielding plate (201) is retractable, a primary filter (103) is provided between the top of the dust collector (101) and the rain shielding plate / light shielding plate (201), and a primary filter (103) is provided between the top of the dust collector (102) and the rain shielding plate / light shielding plate (201); The collecting box (3) is provided with a collecting bottle (301) inside, the collecting box (3) is provided with a door leaf (302), and the door leaf (302) is provided with a door handle (303) and a door lock (304); The upper surface of the dust collector (1) is elliptical, with a major axis length of 15 cm, a minor axis length of 10 cm, and a height of 1.5 cm. The lower part of the dust collector (1) is funnel-shaped; The minimum square mesh size of the primary filter (103) is 1*1 mm. 2 The minimum square mesh of the secondary filter (104) is 0.5*0.5mm 2 The filter materials of the primary filter (103) and the secondary filter (104) are both nylon; The connecting tube (108) is made of a stainless steel metal hose; the connecting wire (206) has a copper wire inside and is wrapped with plastic outside.

2. The device for collecting dust from broadleaf plant leaves according to claim 1, characterized in that: The leakproof sealing ring (106) is annular, the difference between the inner diameter and the outer diameter of the ring is 5 mm, and the thickness is 5 mm; the height of the secondary filter screen interface part is 3 cm, and the secondary filter screen (104) is placed at a position 5 mm away from the bottom of the interface.

3. The device for collecting dust from broadleaf plant leaves according to claim 1, characterized in that: The diameters of the inner rings of the rainfall sensor (202), the light source sensor (203), the controller (205) and the reel (204) are all 1 cm, the length of the reel is 11 cm, the length of the shielding plate rolled up by the reel is 15.7 cm, and the widest width is 10 cm.

4. The device for collecting dust from broadleaf plant leaves according to claim 1, characterized in that: The rain shielding plate / light shielding plate (201) is elliptical, with a major axis length of 15.7 cm, a minor axis length of 10 cm, and a thickness of 1 mm. The rain shielding plate / light shielding plate (201) is 0.3 cm away from the primary filter screen (103), and the top of the dust collector (1) is 1 cm away from the primary filter screen (103).

5. The device for collecting dust from broadleaf plant leaves according to claim 1, characterized in that: The collecting box (3) is 60 cm long, 40 cm wide and 50 cm high. The diameter of the mouth of the collecting bottle (301) is 2.5 cm and the height is 3 cm. The inner diameter of the bottom of the collecting bottle (301) is 15 cm and the height of the collecting bottle is 30 cm.

6. The device for collecting dust from broadleaf plant leaves according to claim 1, characterized in that: The door leaves (302) are two in number, 40 cm in height and 25 cm in width. A door lock (304) is located in the middle of the central axis between the two door leaves, and door handles (303) are located 3 cm on the left and right sides of the door lock.

7. An operating method of the broadleaf plant leaf dust continuous collection device according to claim 1, characterized in that: The following steps are involved: Step 1, the device is placed on a horizontal surface in the open air, the door lock (304) is unlocked with a key, the door handle (303) is pulled outward, the door leaf (302) is opened, two collection bottles (301) are respectively placed at the lower ends of the left and right two collection tubes (107), and then the connecting wire (206) is connected to the electric energy storage device (2), and the rain shielding plate / light shielding plate (201), the rain sensor (202), the light source sensor (203), the reel (204), and the controller (205) are all powered on, so that the plant leaf dust continuous collection device is in a working state, and then the door leaf (302) is closed, and the door lock (304) is locked with a key; Step 2: When the rainfall sensor (202) or the light source sensor (203) senses rainfall or light radiation intensity greater than 1500 μmol·m -2 ·s -1 When the controller (205) is turned on and drives the scroll (204) to rotate counterclockwise, the rain shielding plate / light shielding plate opens and shields the collector, and the air dust cannot enter the dust retention collector (101) and the absorption collector (102), and the plant leaf dust continuous collection device is in a state of not collecting dust; when the rain sensor (202) or the light source sensor (203) does not sense rain or the light radiation intensity is less than 1500 μmol·m -2 ·s -1 When the controller (205) is turned on, the reel (204) is driven to rotate clockwise, the rain shielding plate / light shielding plate (201) is retracted, and the dust collector starts to continue collecting dust; Step 3, after the collection device is placed for a period of time, dust samples are collected; Before collecting samples, the rainfall sensor (202) is kept dry and the light source sensor (203) is shielded. After the rainfall shielding plate / light shielding plate (201) is folded up, the connecting wire (206) is disconnected from the electric energy storage device (2). First, an ear-cleaning ball is used to blow air inward along the upper surface of the dust collector (101) and the absorption dust collector (102), and the dust retained on the surface of the dust collector is blown into the secondary filter (104). Then, the secondary filter interface (105) is removed, and water is injected into the lower collection pipe mouth to flush the dust on the pipe wall into the collection bottle (301) to prevent waste. Step 4: Use the key to unlock the door (304), pull the door handle (303) outward and open the door leaf (302), take out the collection bottle (301) and cap it, number the collection bottle and send it to the laboratory for dust analysis; Step 5, placing two new collection bottles (301) at the lower ends of the left and right collection tubes (107), closing the door leaf (302), and then locking the door lock to prevent the collected samples from being destroyed by natural or human factors. At this time, the plant leaf dust continuous collection device starts collecting samples for the next period of time; Step 6: Repeat steps 2-5 above to complete the sample collection work for the next period, and so on.

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