The invention relates to a cross-membrane absorption on leaf observation device for a pesticide spray, which belongs to the field of agricultural engineering.
The leaf surface spraying technology of pesticides is widely used in pest control, pathogen inhibition, and weed removal. However, the utilization efficiency of the existing pesticide spraying technology is relatively low. This low efficiency causes a huge waste of pesticides, increases the extra cost of crop production, and aggravates the environmental pollution. Therefore, the improvement of the leaf to the pesticide mist is improved. The absorption effect is one of the important ways to solve the above problems. Research on the transmembrane absorption of pesticide mist droplets depends on the observation device. The existing observing devices focus on the absorption process of the leaf surface, but they neglect to observe and study the mist surface absorption process on the leaf surface.
The existing fog droplet absorption observation device has the following deficiencies:
1. In an environment with 100% humidity, the plant will absorb a large amount of moisture from the extremely moist ambient air in addition to the droplets, which will affect the test accuracy.
2. The test system only takes pictures of the absorption process of the droplets from the top-view direction, and the side-view images absorbed by the droplets cannot be obtained, resulting in the inability to obtain the spatial form of the droplets absorption process.
In order to overcome the deficiencies of the prior art, the present invention provides a cross-membrane absorption on leaf observation device for a pesticide spray. By fixing the position of the leaf, an environment with 100% humidity including only the leaf and the mist located on the leaf is established, and the real morphological change information of the pesticide mist droplets absorbed on the leaf surface is obtained through the stereoscopic microscopic test system, and the maximum reduction is minimized. The measurement error caused by the whole plant's absorption of droplets.
The specific technical solution adopted by the present invention is as follows:
a cross-membrane absorption on leaf observation device for a pesticide spray is characterized in that it includes a data acquisition computer (1), a temperature and humidity controller (2), a first digital camera (3), a first microscope (4), an illumination lamp (5), an external Interior atomization nozzle (6), a temperature and humidity sensor (7), and an interior atomization nozzle (8), internal anti-fog glass cover (9), leaf pressing mechanism (10), support frame (12), external anti-fog glass cover (13), bottom plate (14), second digital camera (15), and second microscope (16).
The external anti-fog glass cover (13) is shrouded on the bottom plate (14) to form an external anti-fog room for placing the whole plant and the support frame (12) is placed in the external atomization chamber. The internal anti-fog glass cover (9) is shrouded on the top plate of the support frame (12), and it constitutes an observation room with the top plate. The external atomizing nozzle (6) and the internal atomizing nozzle are respectively inserted into the external anti-fog room and the observation room. The temperature and humidity controller (2) is connected with the external atomizing nozzle (6) and the internal atomizing nozzle respectively through two data lines. Control the external atomizing nozzle (6) and the an Interior atomization nozzle (8) to control the humidity in the atomizing chamber.
The temperature and humidity sensor (7) is placed in the observation room and is connected with the data acquisition computer (1) through a data line for detecting the temperature and humidity in the interior anti-fog glass room. the leaf pressing mechanism is arranged in the observation room above the upper top plate of the support frame (12) for compacting plant leaves.
The illumination lamp (5) is located above the external anti-fog glass cover (13). The first digital camera (3) and the first microscope (4) are placed above the external anti-fog glass cover (13) to obtain the absorption process of the mist droplets on the front surface of the leaf, the relative position between the first microscope (4) and the external anti-fog glass cover can be adjusted; the second digital camera (15) and the second microscope (16) are placed lateral to the external anti-fog glass cover and can adjust the relative position between the microscope and the external anti-fog glass cover for obtaining the leaf The absorption process of the side fog droplets; the first digital camera (3) and the second digital camera (15) are respectively connected to the data acquisition computer (1) through two data acquisition lines; the data acquisition computer (1) is used to receive, observe and process the first digital camera (3) and the second digital camera (15) transmits the image of the mist droplet absorption process over the leaf surface and monitors the humidity inside the internal anti-fog glass cover (9).
Further, the blade pressing mechanism is a manual mechanical leaf edge compactor, By the first circular arc edge block (17), Second circular arc edge block (18), A circular arc-shaped edge block with a single protruding rod without a through hole (19), Single sticking rod and double through hole fixing block (20), A single sticking rod and a single through hole fixing block (21) and six connecting rods (22-27) are composed. The central axis of the cylindrical through hole of the fixing block with the through hole is parallel to the central axis of the protruding rod with the protruding rod and the protruding rod of the fixing block, and the nominal diameter of the through hole and the protruding rod Both are 10 mm, and the connection of any through hole and the extension rod adopts a clearance fit. The protruding rod of the circular arc-shaped edge block of the single protruding rod without the through hole (19) is first inserted into the same side of the fixing block of the single protruding rod and the single through hole (21), Then, the two through holes of the single sticking rod and double through hole fixing block (20) are respectively placed on the arc-shaped leaf edge pressing block having a single protruding rod without a through hole (19) and a protruding rod of a fixing piece of a single protruding rod and a single through hole (21). Finally, all the briquettes and the fixed blocks are connected by the six connecting rods to form 10 living hinges. The fixing block of the single extension rod and the single through hole (21) is fixedly connected to the support frame by welding, the heights of the first circular arc edge block (17) and the second circular leaf edge block (18) are both 15 mm, the protruding rod length of the circular arc-shaped edge block of the single protruding rod without the through hole (19) is 60 mm, and the length of the protruding rod of the single protruding rod and the single through hole fixing block (21) is 45 mm, the length of the protruding rod of the single protruding rod and the fixing block of the double through hole 20 is 30 mm, the thickness of the six connecting rods (22-27) is 3 mm
Further, the temperature and humidity controller (2) has two knobs respectively for controlling the atomization amount, and the inner atomizing nozzle and the external atomizing nozzle (6) are stepped horns with exponential transition sections and low frequency ultrasonic fog. The shower head has a main body vibration frequency of 45-60 kHz.
Further, the first digital camera (3) and the second digital camera (15) respectively photograph the enlarged images of the first microscope (4) and the second microscope (16).
Further, the temperature and humidity sensor (7) model is DHT11, the temperature measurement range is 0° C.-50° C., the humidity measurement range is 20%-95%, and the humidity measurement error is ±5%.
Further, the external anti-fog glass cover has five surfaces, the size of which is 620 mm in length, 380 mm in width, 304 mm in height, and is made of ordinary glass coated with conductive material ITO and silicon oxide, and the external anti-fog glass cover. The upper surface has a nozzle fixing hole with a diameter of 13 mm.
Further, the internal anti-fog glass cover (9) has five faces, the size of which is 180 mm in length, 180 mm in width, and 50 mm in height, and is made of ordinary glass coated with conductive material ITO and silicon oxide, and the internal anti-fog glass cover (9). The upper surface has a fixing hole with a diameter of 13 mm.
The advantages of the present invention are:
1. The existing fog droplet absorption observation system is to place the entire plant in a 100% humidity environment. In addition to absorbing the droplets, the plants will also absorb moisture from the extremely moist ambient air in large quantities, which will affect the test accuracy. In contrast, the present invention establishes a 100% humidity environment including only the leaves and the mists located thereon, and minimizes the measurement error caused by the absorption of droplets by the entire plant.
2. Observing the leaf from both the positive and lateral directions so that a more complete morphological change of the droplet absorption process can be obtained.
3. A reliable fixation of the observed leaf is achieved and the observed area is increased as much as possible depending on the actual surface area of the observed leaf by designing a manual mechanical leaf pressing mechanism (10).
In the
The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, the scope of protection of the present invention is not limited to these.
As shown in
The structure of the leaf pressing mechanism 10 in the present invention is shown in
The illumination lamp 5 is located above the external anti-fog cover 13, the first digital camera 3 and the first microscope 4 are placed above the external anti-fog cover 13 and can adjust the first microscope 4 and the external anti-fog cover 13. The relative position between the two is used to obtain the absorption process of the mist droplets on the surface of the leaf surface. The second digital camera 15 and the second microscope 16 are placed on the side of the external anti-fog cover 13 and we can adjust the relative position between the microscope and the external anti-fog cover 13 to obtain the absorption process of the mist on the side of the leaf. The first digital camera 3 and the second digital camera 15 are respectively connected to the data acquisition computer 1 through two data acquisition lines. The data acquisition computer 1 is used for receiving, observing and processing the image of the droplets absorbed by the leaf surfaces transmitted by the first digital camera 3 and the second digital camera 15 and monitoring the humidity in the internal anti-fog glass cover 9.
As shown in
Working process: the leaf to be observed is placed on the upper top plate surface of the support frame 12, and the three protruding rods of the leaf pressure mechanism 10 are adjusted to press the most edge of the leaf to ensure that the leaf has a larger droplet absorption area. The inner anti-fog cover 9 is covered on the upper top plate of the support frame 12, the inner Interior atomization nozzle 8 is inserted into the inner anti-fog cover 9, and then the external anti-fog cover 13 is covered and the front and the second microscope 16 lenses and leafs are Righting, turn on the light 5, connect all data lines and power lines, and then open the data acquisition computer 1 and open the data receiving and processing software or module, and then adjust the lens of the first microscope 4 and the second microscope 16 with respect to the leafs. Distance to determine the most appropriate observation distance, by controlling the temperature and humidity controller 2 to control the internal atomizing nozzle 8 and the external atomizing nozzle 6 to spray and observe the temperature and humidity inside the internal anti-fog glass chamber detected by the temperature and humidity sensor 7, to ensure that The humidity in the anti-fog glass room is equal to 100%. The first digital camera 3 and the second digital camera 15 respectively capture the images enlarged by the first microscope 4 and the second microscope 16.
Specifically, the temperature and humidity controller 2 has two knobs for respectively controlling the atomization amount. The temperature and humidity sensor 7 is DHT11, the temperature measurement range is 0° C.-50° C., and the humidity measurement range is 20%-95%, humidity measurement error is ±5%. The inner atomizing nozzle 8 and the external atomizing nozzle 6 are stepped horn low-frequency ultrasonic atomizing nozzles with an exponential transition section, and the main body has a vibration frequency of 45-60 kHz.
The external anti-fog glass cover 13 has five faces and its dimensions are 620 mm in length, 380 mm in width and 304 mm in height. The material is a common glass coated with conductive material ITO and silicon oxide on the external anti-fog glass cover 13. The surface has a nozzle fixing hole with a diameter of 13 mm. The internal anti-fog glass cover 9 has five faces and its dimensions are: 180 mm in length, 180 mm in width, and 50 mm in height. The material is an ordinary glass coated with conductive material ITO and silicon oxide on the surface thereof, and a fixing hole having a diameter of 13 mm is formed on the upper surface of the internal anti-fog glass cover 9.
The embodiment is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, any obvious improvement, substitution or modification that can be made by those skilled in the art without departing from the essence of the present invention belongs to the protection scope of the present invention.
Number | Date | Country | Kind |
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201710206078.2 | Mar 2017 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2017/084643 | 5/17/2017 | WO | 00 |