Seed suction sampling and spectrum sorting device based on array type hollow-core optical fiber

Abstract

The invention discloses a seed suction sampling and spectrum sorting device based on an array type hollow-core optical fiber, which comprises a seed collection module, a spectrum sorting module, a seed sampling module and a spectrum sorting module, and is characterized in that the seed collection module is provided with a plurality of spaces capable of accommodating seeds; the array type hollow-core optical fiber can transmit exciting light and collecting light at the same time; the array type adsorption module is connected with the array type hollow-core optical fiber; the vibration module is mounted on one side of the array type adsorption module; the spectrum excitation detection unit is used for generating excitation light; and the mechanical separation executing mechanism is used for controlling the array type adsorption module to move. Through the unique structural design of the array type hollow-core optical fiber, the optical transmission function and the negative pressure adsorption function are integrated in the same system, negative pressure adsorption sampling is achieved through an inner cavity of the optical fiber, meanwhile, spectrum detection is completed through the optical waveguide characteristic of the optical fiber, and a transmission-adsorption-detection integrated framework is formed. Compared with a traditional discrete system, the design enables the complexity of an optical assembly to be reduced and the hardware cost to be reduced.

Description

Technical Field

[0001] The present invention relates to the field of agricultural optical detection technology, and in particular to a seed extraction sampling and spectrum sorting device based on array-type hollow-core optical fibers. Background Art

[0002] In agricultural production, seed quality directly impacts crop yield and quality. Seed vigor is a key indicator of seed quality. Seeds with high vigor germinate and grow faster, improving crop resilience and yield. Traditional seed vigor testing methods, including germination tests and physiological and biochemical assays, suffer from long testing cycles, cumbersome procedures, and potential damage to seeds. These methods fail to meet the demands of modern agriculture for large-scale, rapid, and non-destructive testing.

[0003] In recent years, with the development of optical detection technology, multispectral detection technology has been widely used in seed quality testing due to its advantages such as rapidity, non-destructiveness, and real-time detection. However, existing multispectral detection devices have some problems in the seed sampling and detection process, such as low sampling efficiency, low detection accuracy, and inability to accurately sort individual seeds.

[0004] Based on the above technical problems, technicians in this field urgently need to develop a seed extraction sampling and spectral sorting device based on array-type hollow-core optical fiber that can achieve rapid, non-destructive and accurate detection of seeds. Summary of the Invention

[0005] The purpose of the present invention is to provide a seed extraction sampling and spectral sorting device based on an array-type hollow-core optical fiber that can achieve rapid, non-destructive and accurate detection of seeds.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a seed extraction sampling and spectrum sorting device based on an array-type hollow-core optical fiber, the sorting device comprising:

[0008] A seed collection module having multiple spaces capable of accommodating seeds for holding seeds at different detection stages; and

[0009] Arrayed hollow-core optical fibers can simultaneously transmit excitation light and collection light, and draw airflow through the aperture in the middle to generate negative pressure;

[0010] An array adsorption module is connected to the array hollow-core optical fiber and is used to absorb the seeds through the excitation light and scattered light of the seeds and the negative pressure generated by the array hollow-core optical fiber;

[0011] The sorting device also includes:

[0012] a vibration module installed on one side of the array adsorption module, and when the array adsorption module extends into the seed collection module, the vibration module causes the array adsorption module to vibrate, so as to disperse the seeds and allow them to enter the surface of the array adsorption module;

[0013] a spectral excitation detection unit connected to the arrayed hollow-core optical fiber, for generating excitation light and detecting scattered light returned from the arrayed hollow-core optical fiber to the seed surface;

[0014] The mechanical sorting actuator is connected to the array adsorption module, and is used to control the array adsorption module to move to the accommodation space of the seed collection module, and control the negative pressure of specific optical fibers inside the array-type hollow-core optical fiber to open or close, so as to absorb and release specific seeds.

[0015] Furthermore, the seed collecting module includes a seed box to be sorted, which is used to contain seeds to be sorted; and

[0016] High-activity seed box, used to hold seeds with high activity after sorting;

[0017] Low-activity seed boxes are used to hold seeds with low activity after sorting.

[0018] Preferably, the opening sizes of the seed box to be sorted, the high-activity seed box and the low-activity seed box are larger than those of the array adsorption module, so that the array adsorption module can be inserted when subsequently adsorbing and releasing seeds.

[0019] Preferably, the inner diameter of the array-type hollow-core optical fiber is 2 mm.

[0020] Furthermore, the lower surface of the array adsorption module has an array-type groove, which is consistent with the shape of the seed and can accommodate a single seed, and the top of the groove has a small hole consistent with the inner diameter of the array-type hollow-core optical fiber.

[0021] Preferably, the detection part of the spectral excitation detection unit adopts a multi-channel spectrometer to achieve simultaneous detection of all seeds.

[0022] In the above technical solution, the present invention provides a seed extraction sampling and spectrum sorting device based on an array-type hollow-core optical fiber, which has the following beneficial effects:

[0023] The present invention utilizes a seed extraction sampling and spectral sorting device based on an array of hollow-core optical fibers. Through the unique structural design of the arrayed hollow-core optical fibers, this device integrates optical transmission and negative pressure adsorption into a single system. The device utilizes the internal cavity of the optical fiber for negative pressure adsorption sampling, while simultaneously utilizing the optical waveguide properties of the fiber for spectral detection, forming an integrated "transmission-adsorption-detection" architecture. Compared to traditional discrete systems, this design reduces the complexity of optical components and hardware costs, and by parallelizing the detection and sorting processes, it improves processing efficiency per unit time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of the overall structure of a seed extraction sampling and spectral sorting device based on an array-type hollow-core optical fiber provided in an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of an array adsorption module in a seed extraction sampling and spectral sorting device based on an array-type hollow-core optical fiber provided in an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1. Seed box to be sorted; 2. High-activity seed box; 3. Low-activity seed box; 4. Arrayed hollow-core optical fiber; 5. Arrayed adsorption module; 6. Vibration module; 7. Spectral excitation detection unit; 8. Mechanical sorting actuator;

[0029] 501, groove; 502, small hole. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figures 1 and 2 As shown;

[0032] The present invention provides a seed extraction sampling and spectrum sorting device based on an array-type hollow-core optical fiber, the sorting device comprising:

[0033] A seed collection module having multiple spaces capable of accommodating seeds for holding seeds at different detection stages; and

[0034] The array type hollow core optical fiber 4 can transmit the excitation light and the collection light at the same time, and absorb the air flow through the aperture in the middle part to generate negative pressure;

[0035] The array adsorption module 5 is connected to the array hollow-core optical fiber 4 and is used to absorb the seeds through the excitation light and the scattered light of the seeds and the negative pressure generated by the array hollow-core optical fiber 4;

[0036] The sorting device also includes:

[0037] The vibration module 6 is installed on one side of the array adsorption module 5. When the array adsorption module 5 extends into the seed collection module, the vibration module 6 causes the array adsorption module 5 to vibrate, so that the seeds are dispersed and enter the surface of the array adsorption module 5.

[0038] The spectral excitation detection unit 7 is connected to the arrayed hollow-core optical fiber 4 and is used to generate excitation light and detect the scattered light returned from the arrayed hollow-core optical fiber 4 to the seed surface;

[0039] The mechanical sorting actuator 8 is connected to the array adsorption module 5 and is used to control the array adsorption module 5 to move to the accommodating space of the seed collection module, and control the negative pressure of specific optical fibers inside the array hollow-core optical fiber 4 to open or close, so as to absorb and release specific seeds.

[0040] As a further introduction to this embodiment, the seed collection module includes a seed box 1 to be sorted, which is used to contain seeds to be sorted; and

[0041] High-activity seed box 2, used for containing seeds with high activity after sorting;

[0042] The low-activity seed box 3 is used for containing seeds with low activity after sorting.

[0043] As a preferred technical solution of this embodiment, the opening sizes of the seed box 1 to be sorted, the high-activity seed box 2 and the low-activity seed box 3 are larger than the array adsorption module 5, so that the array adsorption module 5 can be extended when the seeds are subsequently adsorbed and released.

[0044] As a preferred technical solution of this embodiment, the inner diameter of the array-type hollow-core optical fiber 4 is 2 mm, which ensures the flux of light and airflow and improves the detection signal-to-noise ratio and adsorption stability.

[0045] As a further introduction to this embodiment, the lower surface of the arrayed adsorption module 5 has an array of grooves 501. Grooves 501 are shaped like seeds and can accommodate a single seed. A small hole 502 is located at the top of the groove 501, which has the same inner diameter as the arrayed hollow-core fiber 4. The small hole 502 is connected to the arrayed hollow-core fiber 4 and is used to absorb the seeds by generating a negative pressure through the arrayed hollow-core fiber 4 using the excitation light and scattered light from the seeds.

[0046] As a further introduction to this embodiment, when the array adsorption module 5 extends into the seed box 1 to be sorted, the vibration module 6 causes the array adsorption module 5 to vibrate, causing the seeds to disperse and enter the grooves 501 on the surface of the array adsorption module 5.

[0047] When the array-type hollow-core optical fiber 4 generates negative pressure, the array-type adsorption module 5 will adsorb the seeds in the groove 501. Since there is no negative pressure environment outside the groove 501, the excess seeds will not be adsorbed, and only the single seeds accurately adsorbed by the array-type hollow-core optical fiber 4 will be retained. At this time, the single seed can be accurately positioned.

[0048] As a preferred technical solution of this embodiment, the detection part of the spectral excitation detection unit 7 adopts a multi-channel spectrometer to achieve simultaneous detection of all seeds.

[0049] As a further introduction to this embodiment, the mechanical sorting actuator 8, based on the spectral analysis results, removes the negative pressure from specific fibers within the arrayed hollow-core optical fiber 4 corresponding to seeds with unqualified activity levels, causing these seeds to fall and be precisely delivered to the low-activity seed box 3. Seeds with qualified activity, under the action of normal negative pressure, ultimately enter the high-activity seed box 2. The mechanical sorting actuator 8 can use a solenoid valve to control the on / off of the negative pressure, enabling precise sorting of seeds of varying activity levels.

[0050] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A seed extraction sampling and spectrum sorting device based on array-type hollow-core optical fiber, characterized in that: The sorting device includes: A seed collection module having multiple spaces capable of accommodating seeds for holding seeds at different detection stages; and An array type hollow core optical fiber (4) is capable of simultaneously transmitting excitation light and collecting light, and drawing airflow through the aperture in the middle portion to generate negative pressure; An array-type adsorption module (5) is connected to the array-type hollow-core optical fiber (4) and is used to absorb the seeds through the excitation light and scattered light of the seeds and the negative pressure generated by the array-type hollow-core optical fiber (4); The sorting device also includes: a vibration module (6) mounted on one side of the array adsorption module (5); and when the array adsorption module (5) extends into the seed collection module, the vibration module (6) causes the array adsorption module (5) to vibrate, so as to disperse the seeds and allow them to enter the surface of the array adsorption module (5); A spectral excitation detection unit (7) is connected to the arrayed hollow-core optical fiber (4) and is used to generate excitation light and detect scattered light returned to the seed surface by the arrayed hollow-core optical fiber (4); A mechanical sorting actuator (8) is connected to the array adsorption module (5) and is used to control the array adsorption module (5) to move to the accommodating space of the seed collection module, and to control the opening or closing of the negative pressure of a specific optical fiber inside the array hollow-core optical fiber (4) to absorb and release specific seeds.

2. The seed extraction sampling and spectrum sorting device based on array-type hollow-core optical fiber according to claim 1, characterized in that: The seed collection module comprises a seed box (1) for containing seeds to be sorted; as well as A high-activity seed box (2) is used to contain seeds with high activity after sorting; The low-activity seed box (3) is used for containing seeds with low activity after sorting.

3. The seed extraction sampling and spectrum sorting device based on array-type hollow-core optical fiber according to claim 2, characterized in that: The opening sizes of the seed box (1) to be sorted, the high-activity seed box (2), and the low-activity seed box (3) are larger than the array-type adsorption module (5), so that the array-type adsorption module (5) can be inserted when subsequently adsorbing and releasing seeds.

4. The seed extraction sampling and spectrum sorting device based on array-type hollow-core optical fiber according to claim 1, characterized in that: The lower surface of the array adsorption module (5) is provided with an array-type groove (501), the groove (501) is consistent with the shape of a seed and can accommodate a single seed, and the top of the groove (501) is provided with a small hole (502) consistent with the inner diameter of the array-type hollow-core optical fiber (4).

5. The seed extraction sampling and spectrum sorting device based on array-type hollow-core optical fiber according to claim 1, characterized in that: The detection part of the spectral excitation detection unit (7) adopts a multi-channel spectrometer to achieve simultaneous detection of all seeds.

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