Infrared reflection spectrum seed activity detection device

Abstract

The invention discloses an infrared reflection spectrum seed vigor detection device. The device comprises a vibration feeding module; the inclined rail is connected with the vibration feeding module; the inclined illumination infrared light source provides an infrared illumination light source and irradiates the inclined track; the array type position detector is arranged on one side of the inclined track; the light filtering part covers the surface of the inclined track; and the spectrum collecting and processing module is used for collecting scattered light of the seeds filtered by the light filtering part. According to the invention, a combination mode of the single-pixel infrared detector and the one-to-many optical fiber is adopted, so that the equipment cost is greatly reduced. Through cooperation of the single seed vibration feeding module and the inclined track, continuous and rapid feeding and detection of seeds can be achieved, meanwhile, the accuracy and timeliness of spectrum collection are ensured through the array type position detector, and the detection efficiency is effectively improved. By utilizing an infrared reflection spectrum technology, the detection can be completed without damaging the seeds, the nondestructive detection is realized, and the availability of the seeds is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of seed vigor detection, and particularly to an infrared reflection spectroscopy seed vigor detection device. Background Art

[0002] Seed vigor is one of the important indicators to measure seed quality, which directly affects the germination rate of seeds, the growth status of seedlings, and the final yield of crops. At present, traditional seed vigor detection methods have problems such as complex operation, long detection time, and high cost, making it difficult to meet the needs of large-scale rapid seed detection.

[0003] Infrared reflection spectroscopy technology, as a non-destructive detection technology, has potential application value in seed vigor detection. However, existing seed vigor detection systems based on infrared reflection spectroscopy often have complex structures and expensive equipment, which limits their wide application in actual production.

[0004] Based on the above technical problems, those skilled in the art urgently need to develop an infrared reflection spectroscopy seed vigor detection device with low cost, which can realize continuous and rapid feeding and detection of seeds, effectively improve the detection efficiency, and complete the detection without damaging the seeds. Summary of the Invention

[0005] The purpose of the present invention is to provide an infrared reflection spectroscopy seed vigor detection device with low cost, which can realize continuous and rapid feeding and detection of seeds, effectively improve the detection efficiency, and complete the detection without damaging the seeds.

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

[0007] An infrared reflection spectroscopy seed vigor detection device of the present invention, the detection device includes:

[0008] A vibrating feeding module; and

[0009] An inclined track connected to the vibrating feeding module, the vibrating feeding module can orderly arrange the seeds to be detected and convey them to the inclined track one by one;

[0010] An inclined illumination infrared light source, used as an illumination light source during infrared reflection spectroscopy detection, irradiating on the inclined track;

[0011] An array position detector, arranged on one side of the inclined track, used to detect the real-time position of the seeds on the inclined track;

[0012] The detection device further includes:

[0013] A filter part, covering the surface of the inclined track; and

[0014] A spectral collection and processing module is used to collect the scattered light of the seeds filtered by the filter unit and obtain a complete infrared spectrum.

[0015] Furthermore, a groove is provided on the inclined track to form a limiting structure, so that the seeds can fall one by one along the track groove from top to bottom.

[0016] Furthermore, the spectral collection and processing module includes a one-dimensional array type optical fiber collector, which is arranged above the filter unit in a one-dimensional array along the direction of the inclined track and is used to collect the scattered light of the seeds filtered by the filter unit;

[0017] A multi-to-one optical fiber can collect the light collected by the one-dimensional array type optical fiber collector;

[0018] A single-pixel infrared detector is connected to one end of a single optical fiber in the multi-to-one optical fiber and is used to receive and detect the infrared light transmitted through the multi-to-one optical fiber. As the seeds continue to fall, the intensity of light of different wavelengths is recorded by the single-pixel infrared detector to obtain a complete infrared spectrum.

[0019] Preferably, the filter unit uses a wavelength-graded infrared filter. During the falling process of the seeds, the infrared light reflected from their surfaces will pass through the wavelength-graded infrared filter.

[0020] In the above technical solution, an infrared reflection spectroscopy seed viability detection device provided by the present invention has the following beneficial effects:

[0021] The infrared reflection spectroscopy seed viability detection device of the present invention has three significant advantages: low cost, high detection efficiency, and non-destructive detection. In terms of cost, the combination of a single-pixel infrared detector and a multi-to-one optical fiber is adopted, which greatly reduces the equipment cost compared with traditional multi-pixel infrared detectors, and the overall device structure design is relatively simple, further reducing the manufacturing and maintenance costs. In terms of detection efficiency, through the cooperation of the single-seed vibration feeding module and the inclined track, continuous and rapid feeding and detection of seeds can be achieved. At the same time, the array type position detector ensures the accuracy and timeliness of spectral acquisition, effectively improving the detection efficiency. In terms of the detection method, using the infrared reflection spectroscopy technology, the detection can be completed without damaging the seeds, realizing non-destructive detection and ensuring the usability of the seeds. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0023] Figure 1 Schematic diagram of the overall structure of an infrared reflection spectroscopy seed vigor detection device provided by an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the cross-sectional layout of each component of an infrared reflection spectroscopy seed vigor detection device provided by an embodiment of the present invention.

[0025] Explanation of reference numerals:

[0026] 1. Vibration feeding module; 2. Inclined track; 3. Oblique illumination infrared light source; 4. Array position detector; 5. Filtering section; 6. One-dimensional array optical fiber collector; 7. One-to-many optical fiber; 8. Single-pixel infrared detector. Detailed implementation manners

[0027] 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 introduced in detail below with reference to the accompanying drawings.

[0028] See Figures 1 to 2 as shown;

[0029] An infrared reflection spectroscopy seed vigor detection device of the present invention, the detection device includes:

[0030] Vibration feeding module 1; and

[0031] An inclined track 2 connected to the vibration feeding module 1, the vibration feeding module 1 can orderly arrange the seeds to be detected and convey them to the inclined track 2 one by one; by starting and stopping the vibration, and cooperating with the feedback signal of the subsequent array position detector 4, it is ensured that only one seed passes through the inclined track 2 at a time;

[0032] An oblique illumination infrared light source 3, used as the illumination light source during infrared reflection spectroscopy detection, and irradiates the inclined track 2 at a large incident angle; specifically, the inclined track 2 has a special angle design, so that the light emitted by the oblique illumination infrared light source 3 can be emitted at a large angle and will not be reflected directly above the inclined track 2;

[0033] An array position detector 4, arranged on one side of the inclined track 2, which can detect the seed position in real time and feedback signals to control the start and stop of the vibration feeding module, and at the same time provide a spatio-temporal reference for spectral acquisition; when the seed enters the inclined track 2 through the single-seed vibration feeding module 1, it can feedback signals to the single-seed vibration feeding module 1 to stop the vibration, and when the seed slides out of the inclined track 2, it can feedback signals to the single-seed vibration feeding module 1 to start the vibration, so that the next seed falls. At the same time, it also has the function of accurately obtaining the position information of the seed, providing accurate time and space references for subsequent spectral acquisition, and ensuring that the infrared reflection spectrum of the seed can be collected at the appropriate time.

[0034] The detection device further includes:

[0035] a filter part 5 covering the surface of the inclined track 2; and

[0036] a spectral collection and processing module for collecting the scattered light of the seeds filtered by the filter part 5 and obtaining a complete infrared spectrum.

[0037] As a further introduction of this embodiment, a groove is provided on the inclined track 2 to form a limiting structure, so that the seeds can fall one by one along the track groove from top to bottom. The groove size of the inclined track 2 is adapted to the shape of the seeds to ensure that the seeds slide down along a fixed trajectory. This design can not only ensure the orderly falling of the seeds, but also control the movement trajectory of the seeds, facilitating subsequent detection operations.

[0038] As a further introduction of this embodiment, the spectral collection and processing module includes a one-dimensional array type optical fiber collector 6, which is arranged above the filter part 5 in a one-dimensional array along the direction of the inclined track 2 for collecting the scattered light of the seeds filtered by the filter part 5 and transmitting it to a one-to-many optical fiber 7;

[0039] The one-to-many optical fiber 7 can collect the light collected by the one-dimensional array type optical fiber collector 6, so that each single optical fiber can transmit the light to a single-pixel infrared detector 8. Due to the presence of a wavelength-graded infrared filter, the wavelength of the light collected by each optical fiber will gradually change in sequence at this time and cover the complete detection wavelength range.

[0040] The single-pixel infrared detector 8 is connected to one end of a single optical fiber in the one-to-many optical fiber 7 for receiving and detecting the infrared light transmitted through the one-to-many optical fiber 7. As the seeds continue to fall, the intensity of light with different wavelengths is recorded by the single-pixel infrared detector 8, thereby obtaining a complete infrared spectrum. The response band of the single-pixel infrared detector 8 covers the detection requirements and has a high signal-to-noise ratio performance to match the dynamic state of the seed falling.

[0041] As a preferred technical solution of this embodiment, the filter part 5 adopts a wavelength-graded infrared filter, whose wavelength changes continuously with position. The filtering wavelength is dynamically calculated according to the falling position of the seeds. The wavelength gradient of the wavelength-graded infrared filter covers the required detection band, and the gradient change matches the falling speed of the seeds. The fiber arrangement density of the one-dimensional array type optical fiber collector 6 is adapted to the wavelength coverage range of the filter and optimizes the light collection efficiency. When the seeds are falling, the infrared light reflected from their surfaces will pass through the wavelength-graded infrared filter. Since the wavelength of the wavelength-graded infrared filter is gradually changing, infrared light with different wavelengths will be filtered out at different positions. The wavelength of the light emitted directly above the seeds at this time can be calculated through the accurate position of the seeds fed back by the array type position detector 4, thus providing conditions for obtaining a complete infrared spectrum of the seeds.

[0042] Only some exemplary embodiments of the present invention have been described above by way of illustration. Undoubtedly, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments 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 of the present invention.

Claims

1. An infrared reflection spectroscopy seed vigor detection device, characterized in that, The detection device includes: a vibrating feeding module (1); and an inclined track (2) connected to the vibrating feeding module (1), the vibrating feeding module (1) being capable of arranging the seeds to be detected in an orderly manner and conveying them one by one onto the inclined track (2); an oblique illumination infrared light source (3), which is an illumination light source for infrared reflection spectroscopy detection and irradiates on the inclined track (2); an array type position detector (4), arranged on one side of the inclined track (2), for detecting the real-time position of the seeds on the inclined track (2); The detection device further includes: a light filtering part (5), which covers the surface of the inclined track (2); and a spectrum collection and processing module, for collecting the scattered light of the seeds filtered by the light filtering part (5) and obtaining a complete infrared spectrum.

2. The infrared reflection spectrum seed vigor detection device according to claim 1, wherein The inclined track (2) is provided with grooves to form a limiting structure, so that the seeds can fall one by one from top to bottom along the track grooves.

3. An infrared reflection spectroscopy seed vigor detection device according to claim 1, characterized in that, The spectrum collection and processing module includes a one-dimensional array type optical fiber collector (6), which is arranged above the light filtering part (5) in a one-dimensional array along the direction of the inclined track (2) for collecting the scattered light of the seeds filtered by the light filtering part (5); a one-for-many optical fiber (7), which can collect the light collected by the one-dimensional array type optical fiber collector (6); a single-pixel infrared detector (8) is connected to one end of a single optical fiber in the one-for-many optical fiber (7), for receiving and detecting the infrared light transmitted through the one-for-many optical fiber (7). As the seeds continue to fall, the intensities of light of different wavelengths are recorded by the single-pixel infrared detector (8) to obtain a complete infrared spectrum.

4. An infrared reflection spectroscopy seed vigor detection device according to claim 1, characterized in that, The light filtering part (5) uses a wavelength-graded infrared filter. During the falling process of the seeds, the infrared light reflected from their surfaces will pass through the wavelength-graded infrared filter.

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