A mobile data acquisition device and chlorophyll fluorescence detection system

Abstract

The present invention relates to the field of plant detection technology, and provides a mobile data acquisition device and a chlorophyll fluorescence detection system, comprising a movable supporting part, a spectrometer body and a probe part, wherein the probe part comprises a base part, a blade contact cylinder, a blade contact seat arranged on the base part and a collection probe arranged in the blade contact cylinder, wherein the blade contact cylinder is adapted to the blade contact seat, and the blade contact cylinder can move toward / away from the blade contact seat, a cleaning component is arranged in the blade contact cylinder, and a wire is arranged between the spectrometer body and the collection probe; the data acquisition device also comprises a high-place collection component for driving the probe part to rise for collection operations; for the collection of chlorophyll fluorescence data of leaves at a high place, the high-place collection component is used to drive the probe part to rise for operation, which is both safe and convenient; the cleaning component is used to clean the leaf collection part, and dust, dew and other substances adhering to the leaf collection surface are removed to avoid affecting the feedback quality of the fluorescence signal, thereby ensuring the accuracy of the final detection result.

Description

Technical Field

[0001] The invention relates to the technical field of plant detection, in particular to a mobile data acquisition device and a chlorophyll fluorescence detection system. Background Art

[0002] In plant physiology and ecology research, chlorophyll is a key pigment for plant photosynthesis, and its content and activity state are important indicators for evaluating plant growth conditions, photosynthetic efficiency and environmental adaptability.

[0003] At present, the spectral analysis method in the laboratory is mostly used for plant chlorophyll detection. Among them, chlorophyll fluorescence technology is favored because of its non-destructive, rapid and high sensitivity. This technology can indirectly reflect the chlorophyll content and the functional state of the photosynthetic system by measuring the fluorescence signal emitted by the leaves under light conditions. In order to meet the outdoor needs for plant chlorophyll fluorescence data collection, mobile spectrometers (such as handheld and hanging spectrometers) came into being. However, when using a mobile spectrometer, the detection personnel are required to manually aim the collection probe at the leaves to be tested. For short plants, it is okay, but for leaves in high positions, the collection personnel need to climb up or use poles to assist in the operation, which is very troublesome and reduces the data collection efficiency. In addition, in the outdoor environment, dust, dew and other substances will inevitably adhere to the surface of the leaves, which will directly affect the quality of the fluorescence signal feedback, and thus affect the accuracy of the final detection results.

[0004] Therefore, the present invention proposes a mobile data acquisition device and a chlorophyll fluorescence detection system to solve the above problems. Summary of the invention

[0005] The embodiment of the present invention aims to provide a mobile data acquisition device and a chlorophyll fluorescence detection system to solve the above problems.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mobile data acquisition device comprises a movable bearing, a spectrometer body arranged on the bearing, and a probe part for aligning leaves to collect chlorophyll fluorescence data, the probe part comprises a base part, a blade contact cylinder, a blade contact seat arranged on the base part, and a collection probe arranged in the blade contact cylinder, the blade contact cylinder is adapted to the blade contact seat, and the blade contact cylinder can move away from / towards the blade contact seat, a cleaning component for cleaning the collection part of the blade is arranged in the blade contact cylinder, and a wire is arranged between the spectrometer body and the collection probe;

[0008] The data acquisition device also includes a high-place acquisition component for driving the probe part to rise to perform acquisition operations.

[0009] In an optional solution: a cylinder is provided at the bottom of the carrier, a tripod is provided in the cylinder, and the tripod is a foldable tripod.

[0010] In an optional solution: a handle is provided on the base member, a telescopic member is also provided on the base member, and a telescopic end of the telescopic member is connected to the blade contact cylinder.

[0011] In an optional solution: the cleaning component includes a base that can move toward / away from the blade seat and a rotating shaft rotatably arranged on the base, a loading plate is provided at one end of the rotating shaft away from the base, a wiping block is detachably provided on the loading plate, and a first driving member for driving the rotating shaft to rotate is provided on the base.

[0012] In an optional solution: an iron ring is provided on the base, an electromagnet corresponding to the iron ring is provided on the blade seat, a plurality of elastic reset parts are provided between the base and the wall of the blade cylinder, and a limiting boss is provided on the inner wall of the blade cylinder for limiting the wiping block from approaching the movement limit of the blade seat.

[0013] In an optional scheme: the collection probe is located below the wiping block, and the collection probe moves to the outside of the blade cylinder when the cleaning assembly is operating, a wedge block is provided on the side of the blade cylinder, a slide groove is provided on the inclined side of the wedge block, a slider is clamped in the slide groove, a connecting rod is provided on the base, the end of the connecting rod away from the base is connected to the slider, a guide rod passing through the wedge block and a through groove for the movement of the connecting rod are provided on the wall of the blade cylinder, a hard sleeve is provided on the wedge block, the end of the wire away from the spectrometer body passes through the hard sleeve and is connected to the collection probe, and a through hole for the collection probe to pass through is also provided on the wall of the blade cylinder.

[0014] In an optional solution: the high-altitude collection component includes a rod body arranged on a carrier and a mounting member slidably arranged on the rod body, the rod body is detachably composed of multiple rod sections, and each rod section is provided with a rack, the mounting member is provided with a gear meshing with the rack and a second driving member for driving the gear to rotate, the mounting member is provided with a robotic arm, and the probe part can be connected to the end effector of the robotic arm and driven by the robotic arm to move in space.

[0015] A chlorophyll fluorescence detection system comprises a mobile data acquisition device according to any one of the above technical solutions, and also comprises an analysis module for analyzing spectral data generated by a spectrometer body.

[0016] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0017] 1. For the collection of chlorophyll fluorescence data of leaves at high altitudes, the high altitude collection component is used to drive the probe to rise for operation, which is safe and convenient;

[0018] 2. Use the cleaning component to clean the leaf collection area to remove dust, dew and other substances adhering to the leaf collection surface to avoid affecting the quality of fluorescence signal feedback and ensure the accuracy of the final detection results.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings herein are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and are used together with the specification to explain the principles of the present application. At the same time, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the structure of the probe part in an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of the arrangement between the cleaning component and the collection probe in an embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram of the arrangement of the support member and the cylinder in an embodiment of the present invention.

[0025] Figure 5 3D schematic diagram of a wedge block in an embodiment of the present invention.

[0026] Figure 6 It is a schematic diagram of the arrangement between the base, the wiping block and the iron ring in an embodiment of the present invention.

[0027] Figure 7 It is a schematic diagram of the arrangement between the contact blade seat and the electromagnet in an embodiment of the present invention.

[0028] Figure 8 It is a schematic diagram (part) of the arrangement between the rod body and the mounting member in an embodiment of the present invention.

[0029] Fig. 9 Schematic diagram of the arrangement between the rod segments in an embodiment of the present invention.

[0030] Reference numerals: 1-carrying member, 2-spectrometer body, 3-probe part, 301-base member, 302-handle, 303-telescopic member, 304-touch blade cylinder, 305-touch blade seat, 306-control button, 307-base, 308-rotating shaft, 309-loading sheet, 310-wiping block, 311-limiting boss, 312-collection probe, 313-hard sleeve, 314-wire, 315-through hole, 316-wedge block, 317-through groove, 318 -connecting rod, 319-elastic reset member, 320-first driving member, 321-guide rod, 322-slide groove, 323-sliding block, 324-iron ring, 325-electromagnet, 4-high-altitude collection component, 401-rod body, 4011-rod section, 4012-threaded column, 4013-internal threaded hole, 4014-rack, 402-mounting member, 403-second driving member, 404-mechanical arm, 405-control panel, 406-gear, 5-cylinder body, 6-tripod. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] See also Figure 1 to Figure 3 A mobile data acquisition device comprises a movable carrier 1, a spectrometer body 2 arranged on the carrier 1, and a probe part 3 for collecting chlorophyll fluorescence data on leaves, wherein the probe part 3 comprises a base part 301, a blade contact cylinder 304, a blade contact seat 305 arranged on the base part 301, and a collection probe 312 arranged in the blade contact cylinder 304, wherein the blade contact cylinder 304 is adapted to the blade contact seat 305, and the blade contact cylinder 304 can move away from / towards the blade contact seat 305, wherein a cleaning component for cleaning a collection part of a blade is arranged in the blade contact cylinder 304, and a wire 314 is arranged between the spectrometer body 2 and the collection probe 312;

[0033] The data acquisition device further comprises a high-place acquisition component 4 for driving the probe part 3 to rise to perform acquisition operations.

[0034] It should be noted that straps, shoulder straps, handles and the like can be provided on the carrier 1 to facilitate carrying the data acquisition device, that is, the data acquisition device is movable. The above are all prior arts and are therefore not limited or elaborated upon herein. In addition, in the present application, the acquisition probe 312 is provided with a light source (not shown in the figure) so as to provide specific lighting conditions for the blades.

[0035] When performing chlorophyll fluorescence data collection operations, for low-lying leaves, the collection personnel can just hold the probe part 3 to perform the operation. For high-lying leaves, the high-altitude collection component 4 is used to drive the probe part 3 to rise for operation. The specific collection process is: first select and determine the target blade, then move the probe part 3 so that the target blade is located between the blade contact cylinder 304 and the blade contact seat 305, then the blade contact cylinder 304 moves toward the blade contact seat 305 until the blade is clamped, and then the cleaning component is used to clean the blade collection part to remove dust, dew and other substances adhering to the blade collection surface to avoid affecting the feedback quality of the fluorescence signal. Finally, the chlorophyll fluorescence data is collected through the collection probe 312, and the collected fluorescence signal is transmitted to the spectrometer body 2 for processing through the wire 314.

[0036] Furthermore, silicone pads (not shown in the figure) are provided on the opposite sides of the blade contact cylinder 304 and the blade contact seat 305 to avoid damage to the blades.

[0037] See also Figure 1 and Figure 4 In one embodiment of the present invention, a cylinder 5 is provided at the bottom of the carrier 1, and a tripod 6 is provided in the cylinder 5, and the tripod 6 is a foldable tripod. When performing chlorophyll fluorescence data collection operations, the tripod 6 can be unfolded to support the spectrometer body 2 at the working position, and there is no need to carry it on the body or put it on the ground (easy to get dirty). When it needs to be moved, the tripod 6 can be folded and stored in the cylinder 5.

[0038] See also Figure 2 , Figure 3 , Figure 5 to Figure 7 In one embodiment of the present invention, a handle 302 is provided on the base member 301, and a telescopic member 303 is also provided on the base member 301, and the telescopic end of the telescopic member 303 is connected to the blade contact cylinder 304. Preferably, the telescopic member 303 is an electric telescopic rod;

[0039] The cleaning assembly includes a base 307 that can move away from / close to the blade contact seat 305 and a rotating shaft 308 that can be rotatably arranged on the base 307, and a loading sheet 309 is arranged at one end of the rotating shaft 308 away from the base 307, and a wiping block 310 is detachably arranged on the loading sheet 309, and a first driving member 320 for driving the rotating shaft 308 to rotate is arranged on the base 307 (the first driving member 320 is a rotating device such as a reduction motor, a servo motor, etc. in the prior art, which is the prior art, so it is not limited and repeated here);

[0040] An iron ring 324 is provided on the base 307, an electromagnet 325 corresponding to the iron ring 324 is provided on the blade contact seat 305, a plurality of elastic reset members 319 are provided between the base 307 and the wall of the blade contact cylinder 304 (the elastic reset members 319 are elastic members such as springs and elastic ropes, which are not limited or described herein), and a limiting boss 311 for limiting the wiping block 310 from approaching the moving limit of the blade contact seat 305 is provided on the inner wall of the blade contact cylinder 304;

[0041] The collection probe 312 is located below the wiping block 310, and the collection probe 312 moves to the outside of the blade contact cylinder 304 when the cleaning assembly is in operation. A wedge block 316 is provided on the side of the blade contact cylinder 304, and a slide groove 322 is provided on the inclined side of the wedge block 316. A slider 323 is clamped in the slide groove 322. A connecting rod 318 is provided on the base 307, and the end of the connecting rod 318 away from the base 307 is connected to the slider 323. A guide rod 321 passing through the wedge block 316 and a through groove 317 for the connecting rod 318 to move are provided on the wall of the blade contact cylinder 304. A hard sleeve 313 is provided on the wedge block 316, and the end of the wire 314 away from the spectrometer body 2 passes through the hard sleeve 313 and is connected to the collection probe 312. A through hole 315 for the collection probe 312 to pass through is also provided on the wall of the blade contact cylinder 304;

[0042] The handle 302 is provided with a control button 306 for operating the probe part 3 .

[0043] In this embodiment, after the blade cylinder 304 approaches the blade seat 305 and moves to clamp the blade, the electromagnet 325 is energized to generate magnetism to attract the iron ring 324, so that the base 307 approaches the blade seat 305 and moves to the limiting boss 311. At this time, the wiping block 310 conflicts with the blade collecting part. During this process, the wedge block 316 is pushed away from the blade cylinder 304 by the connecting rod 318, thereby driving the collecting probe 312 to move out of the blade cylinder 304. The first driving member 320 drives the rotating shaft 308 to rotate and then drives the wiping block 310 to rotate, thereby wiping and cleaning the blade collecting part, removing dust, dew and other substances adhering to the blade collecting surface, and avoiding affecting the feedback quality of the fluorescence signal. After cleaning, the electromagnet 325 is powered off, the base 307 loses its magnetic attraction and resets under the action of the elastic reset member 319, and the collecting probe 312 is reset to the blade cylinder 304 to collect chlorophyll fluorescence data of the blade.

[0044] Furthermore, in this embodiment, the wiping block 310 and the loading sheet 309 may be connected by means of Velcro, snaps, etc. for easy removal and replacement. After the wiping block 310 is used for a certain period of time, it is removed and replaced to ensure the wiping and cleaning effect.

[0045] See also Figure 1 , Figure 8 and Fig. 9 In one embodiment of the present invention, the high-altitude collection component 4 includes a rod body 401 arranged on the carrier 1 and a mounting member 402 slidably arranged on the rod body 401, the rod body 401 is detachably composed of multiple rod segments 4011, and each rod segment 4011 is provided with a rack 4014, the mounting member 402 is provided with a gear 406 meshing with the rack 4014 and a second driving member 403 for driving the gear 406 to rotate (the second driving member 403 is a rotating device such as a reduction motor, a servo motor, etc. in the prior art, which is the prior art, so it is not limited or repeated here), the mounting member 402 is provided with a mechanical arm 404, and the probe part 3 can be connected to the end effector of the mechanical arm 404 and driven by the mechanical arm 404 to move in space.

[0046] It should be noted that the robotic arm 404 is a prior art and has the ability to drive the probe part 3 to move (including rotate) in three-dimensional space; in addition, after the probe part 3 is fixed to the robotic arm 404 and rises to a high place, the probe part 3 is remotely controlled by the ground collection personnel, and the carrier 1 is provided with a control panel 405 for controlling the probe part 3 and the high-altitude collection component 4.

[0047] In this embodiment, when high-altitude collection operations are not involved, only the rod segment 4011 connected to the carrier 1 is retained, and the mounting member 402 is located on the rod segment 4011, and the remaining rod segments 4011 are all disassembled. When high-altitude collection operations are required, the corresponding number of rod segments 4011 are assembled in sequence according to the collection height, and then the probe part 3 is fixed to the mechanical arm 404 (by means of bolts, clamps, snaps, etc.), and the gear 406 is driven to rotate by the second driving member 403 to drive the mounting member 402 to rise and fall, that is, the probe part 3 is moved to a position close to the target blade, and then the mechanical arm 404 is controlled to drive the probe part 3 to move for detailed adjustment.

[0048] Furthermore, in this embodiment, the rod segments 4011 are assembled by means of the threaded column 4012 and the internal threaded hole 4013, and the threaded column 4012 and the internal threaded hole 4013 are configured such that when the threaded column 4012 is rotated to the bottom, the racks 4014 on the two rod segments 4011 are aligned and fit together.

[0049] Furthermore, in this embodiment, a camera can be set on the mounting member 402 and a corresponding display can be set on the carrier 1, and the camera can transmit the image of the position of the probe part 3 to the display in real time, so that the collection personnel can control the robot arm 404 and the probe part 3 to perform the collection operation.

[0050] The present invention also provides a chlorophyll fluorescence detection system, including a mobile data acquisition device using any one of the above-mentioned technical solutions, and also including an analysis module for analyzing the spectral data generated by the spectrometer body 2 (the analysis module is a prior art, composed of matching software and hardware, and is not described in detail here). After the probe part 3 collects the fluorescence data, it is transmitted to the spectrometer body 2 to generate spectral data, and then the spectral data is analyzed by the analysis module to make a detection evaluation of the inspected plant.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mobile data acquisition device, comprising a movable carrier (1), a spectrometer body (2) arranged on the carrier (1), and a probe (3) for aiming at leaves to collect chlorophyll fluorescence data, characterized in that: The probe part (3) comprises a base member (301), a blade contact cylinder (304), a blade contact seat (305) arranged on the base member (301), and a collection probe (312) arranged in the blade contact cylinder (304); the blade contact cylinder (304) is adapted to the blade contact seat (305), and the blade contact cylinder (304) can move away from / towards the blade contact seat (305); a cleaning component for cleaning a blade collection portion is arranged in the blade contact cylinder (304); and a wire (314) is arranged between the spectrometer body (2) and the collection probe (312); The data acquisition device also includes a high-place acquisition component (4) for driving the probe part (3) to rise to perform acquisition operations; The cleaning assembly comprises a base (307) that can move away from or towards the blade contact seat (305) and a rotating shaft (308) that can be rotatably arranged on the base (307); a loading sheet (309) is arranged at one end of the rotating shaft (308) away from the base (307); a wiping block (310) is detachably arranged on the loading sheet (309); and a first driving member (320) for driving the rotating shaft (308) to rotate is arranged on the base (307); The collecting probe (312) is located below the wiping block (310), and the collecting probe (312) moves to the outside of the blade contact cylinder (304) when the cleaning component is in operation. A wedge block (316) is provided on the side of the blade contact cylinder (304), and a slide groove (322) is provided on the inclined side of the wedge block (316). A slider (323) is clamped in the slide groove (322). A connecting rod (318) is provided on the base (307), and an end of the connecting rod (318) away from the base (307) is connected to the slider (323). 3), the wall of the vane cylinder (304) is provided with a guide rod (321) penetrating the wedge block (316) and a through groove (317) for the connecting rod (318) to move, the wedge block (316) is provided with a hard sleeve (313), one end of the wire (314) away from the spectrometer body (2) passes through the hard sleeve (313) and is connected to the collection probe (312), and the wall of the vane cylinder (304) is also provided with a through hole (315) for the collection probe (312) to pass through.

2. The mobile data acquisition device according to claim 1, characterized in that: A cylinder (5) is provided at the bottom of the carrier (1), a tripod (6) is provided in the cylinder (5), and the tripod (6) is a foldable tripod.

3. The mobile data acquisition device according to claim 1, characterized in that: The base member (301) is provided with a handle (302), and the base member (301) is also provided with a telescopic member (303), and the telescopic end of the telescopic member (303) is connected to the blade contact cylinder (304).

4. The mobile data acquisition device according to claim 1, characterized in that: An iron ring (324) is provided on the base (307), an electromagnet (325) corresponding to the iron ring (324) is provided on the blade contact seat (305), a plurality of elastic reset members (319) are provided between the base (307) and the wall of the blade contact cylinder (304), and a limiting boss (311) for limiting the wiping block (310) from approaching the movement limit of the blade contact seat (305) is provided on the inner wall of the blade contact cylinder (304).

5. The mobile data acquisition device according to claim 1, characterized in that: The high-altitude collection assembly (4) comprises a rod body (401) arranged on a carrier (1) and a mounting member (402) slidably arranged on the rod body (401), wherein the rod body (401) is detachably composed of a plurality of rod sections (4011), and each rod section (4011) is provided with a rack (4014), the mounting member (402) is provided with a gear (406) meshing with the rack (4014) and a second driving member (403) for driving the gear (406) to rotate, the mounting member (402) is provided with a mechanical arm (404), and the probe part (3) can be connected to an end effector of the mechanical arm (404) and driven by the mechanical arm (404) to move in space.

6. A chlorophyll fluorescence detection system, characterized in that: It comprises the mobile data acquisition device as claimed in any one of claims 1 to 5, and also comprises an analysis module for analyzing the spectral data generated by the spectrometer body (2).

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