Single grain transmission spectrum detection device based on dynamic infrared light source triggering technology

Abstract

The invention discloses a single-grain transmission spectrum detection device based on a dynamic infrared light source triggering technology, which comprises a vibration feeding module and a transparent polymer track, and the vibration feeding module can feed seeds into the transparent polymer track one by one; the infrared LED array structure is arranged on the lower surface of the transparent polymer track; the high-speed photoelectric trigger modules are arranged on the two sides of the transparent polymer track; the field angle of the light source detection module covers the transparent polymer track and can detect the intensity of light emitted by the surface of the transparent polymer track. The LED array structure with wavelength gradient arrangement is adopted to replace a traditional infrared spectrometer, and the complexity and hardware cost of an optical system are remarkably reduced while efficient detection of a single grain infrared transmission spectrum is achieved. Through the track sliding design, the risk of seed mechanical damage possibly caused by a traditional clamping mechanism is abandoned, and transmission spectrum collection of seeds can be rapidly completed in cooperation with a high-speed photoelectric triggering mechanism and a dynamic light source scanning technology.

Description

Technical Field

[0001] The present invention relates to the technical field of seed quality detection, and in particular to a single-seed transmission spectrum detection device based on dynamic infrared light source triggering technology. Background Art

[0002] As a rapid, non-destructive detection method, spectral detection technology has been widely researched and applied in the field of seed quality testing in recent years. Traditional spectrometers typically use spectroscopic elements (such as gratings and prisms) to decompose composite light into monochromatic light of different wavelengths. Multiple detectors are then used to detect the light signals of different wavelengths, thereby obtaining spectral information about the seeds.

[0003] However, this traditional spectrometer suffers from complex optical systems, high costs, and bulky size, limiting its widespread application in production. During seed spectral testing, obtaining spectral information typically requires a clamping device to secure the seed in place. This clamping device can cause physical damage to the seed, particularly to fragile germplasm resources, which can affect germination rates and subsequent planting outcomes.

[0004] Based on the above technical problems, technicians in this field urgently need to develop a single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology that can reduce the complexity of the optical system, avoid physical damage to seeds, and is suitable for high-throughput seed quality sorting, especially for the detection of fragile germplasm resources. Summary of the Invention

[0005] The purpose of the present invention is to provide a single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology, which can reduce the complexity of the optical system, avoid physical damage to seeds, and is suitable for high-throughput seed quality sorting, especially for the detection of fragile germplasm resources.

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

[0007] The single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology of the present invention comprises:

[0008] Vibration loading module; and

[0009] A transparent polymer track, into which the vibrating feeding module can feed seeds one by one;

[0010] an infrared LED array structure, disposed on the lower surface of the transparent polymer track, wherein when the infrared LED array structure is lit, the light emitted by the infrared LED array structure can pass through the transparent polymer track and illuminate the seeds;

[0011] High-speed photoelectric trigger modules are arranged on both sides of the transparent polymer track. When the seeds slide along the transparent polymer track, the high-speed photoelectric trigger modules can detect the position of the seeds in real time;

[0012] The detection device also includes:

[0013] A light source detection module has a field of view covering the transparent polymer track and is capable of detecting the intensity of light emitted from the surface of the transparent polymer track.

[0014] Preferably, the infrared LED array structure adopts an infrared LED array structure with a wavelength gradient arrangement, and the infrared LED array structure can cover the 800-2500nm band.

[0015] Preferably, the transparent polymer track is made of a material that can transmit infrared light in the range of 800-2500 nm, and its inclination angle is set between 15° and 30° so that the seeds can slide freely.

[0016] Furthermore, the light source detection module includes an infrared lens, which is installed above the transparent polymer track, and the field of view of the infrared lens can completely cover the surface of the transparent polymer track;

[0017] A single-pixel detector is connected to the image plane side of the infrared lens and is used to detect the intensity of light emitted from the surface of the transparent polymer track.

[0018] In the above technical solution, the single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology provided by the present invention has the following beneficial effects:

[0019] The present invention's single-kernel transmission spectrum detection device, based on dynamic infrared light source triggering technology, replaces traditional infrared spectrometers with LED arrays arranged in a wavelength gradient. This device achieves efficient single-kernel infrared transmission spectrum detection while significantly reducing optical system complexity and hardware costs. The device's track-sliding design eliminates the risk of mechanical seed damage associated with traditional clamping mechanisms. Combined with a high-speed photoelectric triggering mechanism and dynamic light source scanning technology, it rapidly captures seed transmission spectra. This device is particularly well-suited for large-scale nondestructive testing of fragile germplasm resources, providing an innovative, cost-effective and reliable solution for high-throughput seed quality sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 A schematic diagram of the overall structure of a single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the infrared LED array structure in a single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology provided by an embodiment of the present invention;

[0023] Figure 3 A schematic cross-sectional view of the combination of a transparent polymer track, an infrared LED array, and a high-speed photoelectric trigger module in a single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology provided by an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 1. Single seed vibration feeding module; 2. Transparent polymer track; 3. Infrared LED array with wavelength gradient arrangement; 4. High-speed photoelectric trigger module; 5. Infrared lens; 6. Single pixel detector. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figures 1 to 3 As shown;

[0028] The single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology of the present invention comprises:

[0029] Vibration loading module 1; and

[0030] The transparent polymer track 2, the vibration feeding module 1 can feed the seeds into the transparent polymer track 2 one by one, so that only one seed slides down the track surface of the transparent polymer track 2 at a time;

[0031] An infrared LED array structure 3 is provided on the lower surface of the transparent polymer track 2. When the infrared LED array structure 3 is lit, the light it emits can pass through the transparent polymer track 2 and illuminate the seeds;

[0032] High-speed photoelectric trigger modules 4 are arranged on both sides of the transparent polymer track 2. When the seed slides along the transparent polymer track 2, the high-speed photoelectric trigger module 4 can detect the position of the seed in real time. Once it detects that the seed has reached a specific position, it will send a trigger signal to control the infrared LED array 3 to light up the LED light source at the corresponding position. When the seed passes the position, the light source is turned off and the LED light source at the next position is lit, forming a dynamic scanning spectrum excitation;

[0033] The detection device also includes:

[0034] The light source detection module has a field of view covering the transparent polymer track 2 and is capable of detecting the intensity of light emitted from the surface of the transparent polymer track 2 .

[0035] As a preferred technical solution of this embodiment, the infrared LED array structure 3 adopts an infrared LED array structure with a wavelength gradient arrangement, and the infrared LED array structure 3 can cover the 800-2500nm band. When the seed slides along the transparent polymer track 2, a single LED in the infrared LED array 3 located directly below the seed will be lit under the trigger mechanism. When the seed slides past this position, the LED below the corresponding position will be lit to illuminate the seed, and the previously lit LED will be extinguished. Figure 2 As shown, the wavelength of the infrared LED array structure 3 gradually increases along with the direction of the arrow.

[0036] As a preferred technical solution of this embodiment, the transparent polymer track 2 is made of a material that can transmit the infrared band of 800-2500nm, and its inclination angle is set between 15°-30° to allow the seeds to slide freely and extend the effective detection path of the seeds in the detection area, thereby improving the signal-to-noise ratio of the detection signal.

[0037] As a further introduction to this embodiment, the light source detection module includes an infrared lens 5, which is installed above the transparent polymer track 2, and the field of view of the infrared lens 5 can completely cover the surface of the transparent polymer track 2;

[0038] The single-pixel detector 6 is connected to the image plane side of the infrared lens 5 and is used to detect the intensity of light emitted from the surface of the transparent polymer track 2 .

[0039] 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 single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology, characterized in that: The detection device comprises: Vibration loading module (1); and A transparent polymer track (2), wherein the vibrating feeding module (1) is capable of feeding seeds into the transparent polymer track (2) one by one; an infrared LED array structure (3) disposed on the lower surface of the transparent polymer track (2); when the infrared LED array structure (3) is lit, the light emitted by the infrared LED array structure (3) can pass through the transparent polymer track (2) and illuminate the seeds; High-speed photoelectric trigger modules (4) are arranged on both sides of the transparent polymer track (2), and when the seeds slide along the transparent polymer track (2), the high-speed photoelectric trigger modules (4) can detect the position of the seeds in real time; The detection device also includes: A light source detection module has a field of view covering the transparent polymer track (2) and is capable of detecting the intensity of light emitted from the surface of the transparent polymer track (2).

2. The single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology according to claim 1 is characterized in that: The infrared LED array structure (3) adopts an infrared LED array structure with a wavelength gradient arrangement, and the infrared LED array structure (3) can cover the 800-2500nm band.

3. The single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology according to claim 1 is characterized in that: The transparent polymer track (2) is made of a material that can transmit infrared wavelengths in the range of 800-2500 nm, and its tilt angle is set between 15° and 30° so that the seeds can slide freely.

4. The single-grain transmission spectrum detection device based on dynamic infrared light source triggering technology according to claim 1 is characterized in that: The light source detection module comprises an infrared lens (5), which is installed above the transparent polymer track (2), and the field of view of the infrared lens (5) can completely cover the surface of the transparent polymer track (2); A single-pixel detector (6) is connected to the image plane side of the infrared lens (5) and is used to detect the intensity of light emitted from the surface of the transparent polymer track (2).

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