An automatic seed vitality detection and sorting device based on absorption spectrum

Abstract

The present invention discloses an automatic seed vitality detection and sorting device based on absorption spectrum, which belongs to the technical field of seed vitality sorting, including an automatic loader, a one-dimensional vibration guide groove, an integrated adsorption excitation device, a transfer device and a spectrum detection device, wherein the automatic loader is arranged at the starting end of the seed transmission direction; the starting end of the one-dimensional vibration guide groove is connected to the automatic loader, which is used to transfer the seeds to the adsorption area, and the integrated adsorption excitation device is installed on the transfer device, which is used to transfer the seeds from the end of the one-dimensional vibration guide groove to the spectrum detection device for vitality detection, and the seeds after detection are sorted according to vitality. The automatic seed vitality detection and sorting device based on absorption spectrum of the present invention can automatically realize the activity detection of each seed and classify the seeds according to the activity information, thereby improving the accuracy and detection efficiency of seed activity detection.

Description

Technical Field

[0001] The invention relates to the technical field of seed vigor sorting, and in particular to an automatic seed vigor detection and sorting device based on absorption spectrum. Background Art

[0002] The ability of seeds to germinate and grow into normal and healthy seedlings is crucial to agricultural production. By testing the activity of seeds, analyzing the internal components of seeds, the content of each component and other information, combined with certain calculation methods, the vitality of seeds can be judged, and their future growth trends can be predicted. The vitality sorting of seeds is based on the seed vitality information obtained in the early stage, and bad seeds are eliminated, or seeds are classified according to different vitality levels.

[0003] In order to ensure that seeds can be planted normally after vitality sorting, seeds need to be sorted non-destructively. Currently, most of them are based on detection methods such as hyperspectral or diffuse reflectance. This method can only detect the information of the seed lemma, and it is difficult to detect the components inside the seed. For example, the invention patent with publication number CN 111665221 A discloses a device for detecting seed vitality based on transmission spectroscopy and its use method. This invention can improve the accuracy of seed vitality detection, but cannot realize automatic seed sorting.

[0004] Based on the above technical problems, technical personnel in this field urgently need to develop a device that can realize automatic loading and one-dimensional sorting of seeds, transfer each seed to the detection area by adsorption, perform vitality detection using absorption spectroscopy, analyze its vitality through spectral data, and transfer seeds of different vigor to different collection areas. This is an automated seed vitality detection and sorting device based on absorption spectroscopy. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic seed vitality detection and sorting device based on absorption spectrum, which can realize automatic feeding and one-dimensional sorting of seeds, transfer each seed to a detection area by adsorption, perform vitality detection by absorption spectrum, analyze its vitality through spectral data, and transfer seeds of different vitality to different collection areas.

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

[0007] The present invention discloses an automatic seed vitality detection and sorting device based on absorption spectrum, the detection and sorting device comprising:

[0008] A one-dimensional vibration guide trough, which is used to transfer seeds and sort the seeds in one dimension;

[0009] An automatic loader connected to the starting end of the one-dimensional vibration guide groove, which can deliver the seeds to be tested into the one-dimensional vibration guide groove;

[0010] An integrated adsorption and excitation device is connected to the end of the one-dimensional vibration guide groove, and the integrated adsorption and excitation device can adsorb seeds at the airflow inlet through negative pressure, and can coaxially emit supercontinuum light at the airflow inlet to directly excite the adsorbed seeds;

[0011] The detection and sorting device also includes:

[0012] A transfer device, used to move the integrated adsorption and excitation device; and

[0013] The spectral detection device can enable the integrated adsorption excitation device to transfer the seeds from the end of the one-dimensional vibration guide groove to the spectral detection device through the transfer device, and the spectral detection device can collect and detect the outgoing light after the excitation light passes through the seeds.

[0014] Further, the automatic loader includes a cylinder; and

[0015] A first end cover and a second end cover are provided at both ends of the cylinder, wherein the first end cover is configured as a closed structure, and a circular hole is opened in the center of the second end cover;

[0016] A blade installed inside the cylinder and close to one end of the first end cover;

[0017] a bottom support, the cylinder being gravity supported by the bottom support;

[0018] A motor disposed on the bottom bracket;

[0019] The cylinder is placed on a driving wheel connected to the motor via a belt, and the cylinder is driven to rotate by the friction force of the driving wheel.

[0020] Preferably, the cylinder is made of acrylic material, with a diameter of 110 mm and a height of 100 mm;

[0021] The blade is a rectangular structure with a length of 40 mm and a width of 15 mm.

[0022] Further, the one-dimensional vibration guide groove includes a guide groove; and

[0023] a vibrator disposed at the bottom of the guide groove;

[0024] A photoelectric sensor is installed at the end of the guide groove. When the seed moves to the end of the guide groove, the photoelectric sensor is blocked. The photoelectric sensor box sends a signal to the vibrator to stop the vibrator from vibrating.

[0025] Preferably, the guide groove is a long strip structure with a length of 30 cm;

[0026] A groove is formed in the middle of the guide groove, and the width of the groove is determined according to the width of the seed to be detected;

[0027] The model of the photoelectric sensor is E3F-20C1;

[0028] The vibrator is a HX-100# linear vibrator.

[0029] Furthermore, the integrated adsorption and excitation device includes a vacuum conveyor; and

[0030] An air compressor connected to the vacuum conveyor through a pipeline;

[0031] An excitation module is provided with an opening at the bottom of the excitation module. Light emitted by a supercontinuum light source is output to the excitation module through a first optical fiber and emitted through the opening. The adsorption inlet of the vacuum conveyor is connected to the excitation module through a curved pipe, so that the opening can simultaneously generate negative pressure and emit supercontinuum light to achieve adsorption and excitation of seeds.

[0032] Preferably, the model of the air compressor is ZWB-0.071 / 7.

[0033] Furthermore, the transfer device includes an electrically controlled rotary translation stage; and

[0034] The connecting arm is mounted on the electrically controlled rotary displacement stage, and the integrated adsorption excitation device is fixed on one end of the connecting arm away from the electrically controlled rotary displacement stage.

[0035] Further, the spectrum detection device includes a fiber optic coupler, and the light passing through and emitted from the seeds is collected by the fiber optic coupler;

[0036] a second optical fiber connected to the optical fiber coupler;

[0037] A fiber optic spectrometer is connected to an end of the second optical fiber away from the optical fiber coupler.

[0038] Preferably, the connecting arm is made of aluminum alloy plate.

[0039] In the above technical solution, the present invention provides an automatic seed vitality detection and sorting device based on absorption spectrum, which has the following beneficial effects:

[0040] The automatic seed vitality detection and sorting device based on absorption spectrum of the present invention can realize automatic feeding and one-dimensional sorting of seeds, and transfer each seed to the detection area by adsorption, perform vitality detection by absorption spectrum, analyze its vitality through spectral data, and finally transfer seeds with different vitality to different collection areas, so as to effectively improve the accuracy and detection efficiency of seed activity detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0042] Figure 1 A schematic diagram of the overall structure of an automatic seed vitality detection and sorting device based on absorption spectroscopy provided in an embodiment of the present invention;

[0043] Figure 2 A schematic diagram of the structure of an automatic feeder for an automatic seed vitality detection and sorting device based on absorption spectroscopy provided in an embodiment of the present invention;

[0044] Figure 3 A schematic diagram of the structure of a one-dimensional vibration guide trough of an automated seed vitality detection and sorting device based on absorption spectroscopy provided in an embodiment of the present invention;

[0045] Figure 4 A schematic diagram of the structure of an integrated adsorption excitation device and a transfer device of an automated seed-by-seed vitality detection and sorting device based on absorption spectroscopy provided in an embodiment of the present invention;

[0046] Figure 5 A structural schematic diagram of a spectral detection device of an automated seed-by-seed vitality detection and sorting device based on absorption spectroscopy provided in an embodiment of the present invention.

[0047] Description of reference numerals:

[0048] 1. Automatic feeder; 2. One-dimensional vibration guide groove; 3. Integrated adsorption excitation device; 4. Transfer device; 5. Spectrum detection device;

[0049] 101, cylinder; 102, first end cover; 103, second end cover; 104, blades; 105, bottom bracket; 106, motor; 107, belt; 108, driving wheel; 1031, round hole;

[0050] 201, guide groove; 202, vibrator; 203, photoelectric sensor; 2011, groove;

[0051] 301, vacuum conveyor; 302, pipeline; 303, air compressor; 304, excitation module; 305, elbow; 306, opening; 307, supercontinuum light source; 308, first optical fiber;

[0052] 401. electrically controlled rotary translation stage; 402. connecting arm;

[0053] 501, optical fiber coupler; 502, second optical fiber; 503, optical fiber spectrometer. DETAILED DESCRIPTION

[0054] 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.

[0055] See also Figure 1 to Figure 5 As shown;

[0056] The present invention discloses an automatic seed vitality detection and sorting device based on absorption spectrum, the detection and sorting device comprising:

[0057] A one-dimensional vibration guide groove 2, which is used to transfer seeds and sort the seeds in one dimension;

[0058] An automatic feeder 1 connected to the starting end of the one-dimensional vibration guide groove 2, which can feed the seeds to be tested into the one-dimensional vibration guide groove 2;

[0059] An integrated adsorption and excitation device 3, which is connected to the end of the one-dimensional vibration guide groove 2, and the integrated adsorption and excitation device 3 can adsorb seeds at the airflow inlet through negative pressure, and can coaxially emit supercontinuum light at the airflow inlet to directly excite the adsorbed seeds;

[0060] The detection and sorting device also includes:

[0061] A transfer device 4, used for moving the integrated adsorption and excitation device 3; and

[0062] The spectral detection device 5 can enable the integrated adsorption excitation device 3 to transfer the seeds from the end of the one-dimensional vibration guide groove 2 to the spectral detection device 5 through the transfer device 4. The spectral detection device 5 can collect and detect the outgoing light after the excitation light passes through the seeds.

[0063] As a further introduction to this embodiment, the automatic loader 1 includes a cylinder 101; and

[0064] A first end cover 102 and a second end cover 103 are provided at both ends of the cylinder 101, wherein the first end cover 102 is configured as a closed structure, and a circular hole 1031 is opened at the center of the second end cover 103;

[0065] A blade 104 installed inside the cylinder 101 and close to one end of the first end cover 102;

[0066] A bottom support 105, through which the cylinder 101 is supported by gravity;

[0067] A motor 106 disposed on the bottom bracket 105;

[0068] The cylinder 101 is placed on the driving wheel 108 which is connected to the motor 106 via a belt 107 , and the cylinder 101 is driven to rotate by the friction force of the driving wheel 108 .

[0069] As a preferred technical solution of this embodiment, the cylinder 101 is made of acrylic material, with a diameter of 110 mm and a height of 100 mm;

[0070] The blade 104 is a rectangular structure with a length of 40 mm and a width of 15 mm. When the cylinder 101 rotates, the blade 104 can lift the seeds inside the cylinder 101 from the bottom upward and continuously drop them toward the center.

[0071] As a further introduction to this embodiment, the one-dimensional vibration guide groove 2 includes a guide groove 201; and

[0072] a vibrator 202 disposed at the bottom of the guide groove 201;

[0073] The photoelectric sensor 203 is installed at the end of the guide groove 201. When the seed moves to the end of the guide groove 201, the photoelectric sensor 203 is blocked. The photoelectric sensor 203 sends a signal to the vibrator 202 to stop the vibrator 202 from vibrating, thereby preventing the seed from falling.

[0074] As a preferred technical solution of this embodiment, the guide groove 201 is a long strip structure with a length of 30 cm;

[0075] A groove 2011 is formed in the middle of the guide groove 201 . The width of the groove 2011 is determined according to the width of the seeds to be detected, and is generally 3 to 5 mm, preferably 4 mm.

[0076] The model of the photoelectric sensor 203 is E3F-20C1;

[0077] The vibrator 202 is a HX-100# linear vibrator, and the seeds in the groove 2011 of the guide groove 201 are moved in the transmission direction by the vibration of the vibrator 202 .

[0078] As a further introduction to this embodiment, the integrated adsorption and excitation device 3 includes a vacuum conveyor 301; and

[0079] An air compressor 303 connected to the vacuum conveyor 301 through a pipeline 302 generates negative pressure inside the vacuum conveyor 301, and the seeds are adsorbed by the negative pressure;

[0080] The excitation module 304 has an opening 306 at the bottom. In the integrated adsorption and excitation device 3 provided in the present embodiment, the excitation light source adopts a supercontinuum light source 307. The light emitted by the supercontinuum light source 307 is output to the excitation module 304 through a first optical fiber 308 and emitted through the opening 306. The adsorption inlet of the vacuum conveyor 301 is connected to the excitation module 304 through a curved pipe 305, so that the opening 306 can simultaneously generate negative pressure and emit supercontinuum light to achieve adsorption and excitation of seeds.

[0081] As a preferred technical solution of this embodiment, the model of the air compressor 303 is ZWB-0.071 / 7.

[0082] As a further introduction to this embodiment, the transfer device 4 includes an electrically controlled rotary translation stage 401; and

[0083] The connecting arm 402 is mounted on the electrically controlled rotary displacement stage 401 , and the integrated adsorption excitation device 3 is fixed at one end of the connecting arm 402 away from the electrically controlled rotary displacement stage 401 .

[0084] As a further introduction to this embodiment, the spectrum detection device 5 includes a fiber coupler 501, and the light passing through and emitted from the seeds is collected by the fiber coupler 501;

[0085] A second optical fiber 502 connected to the optical fiber coupler 501;

[0086] A fiber optic spectrometer 503 is connected to the end of the optical fiber 502 away from the optical fiber coupler 501. The fiber optic spectrometer 503 has a detection range of 800-2600nm and is used to split light and detect and output different wavelength components.

[0087] As a preferred technical solution of this embodiment, the connecting arm 402 is made of aluminum alloy plate and has a size of approximately 150*100*6 mm.

[0088] In the above technical solution, the present invention provides an automatic seed vitality detection and sorting device based on absorption spectrum, which has the following beneficial effects:

[0089] The automatic seed vitality detection and sorting device based on absorption spectrum of the present invention can realize automatic feeding and one-dimensional sorting of seeds, and transfer each seed to the detection area by adsorption, perform vitality detection by absorption spectrum, analyze its vitality through spectral data, and finally transfer seeds with different vitality to different collection areas, so as to effectively improve the accuracy and detection efficiency of seed activity detection.

[0090] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions 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 automatic seed vitality detection and sorting device based on absorption spectroscopy, characterized in that: The detection and sorting device includes: A one-dimensional vibration guide groove (2) is used to transfer seeds and sort the seeds in one dimension; An automatic feeder (1) connected to the starting end of the one-dimensional vibration guide groove (2), which can feed the seeds to be tested into the one-dimensional vibration guide groove (2); An integrated adsorption and excitation device (3) connected to the end of the one-dimensional vibration guide groove (2), the integrated adsorption and excitation device (3) comprising a vacuum conveyor (301) and an air compressor (303) connected to the vacuum conveyor (301) via a pipeline (302); An excitation module (304), wherein an opening (306) is provided below the excitation module (304), and light emitted by a supercontinuum light source (307) is output to the excitation module (304) through a first optical fiber (308) and emitted through the opening (306), and an adsorption inlet of the vacuum conveyor (301) is connected to the excitation module (304) through a curved pipe (305), so that negative pressure can be generated at the opening (306) and supercontinuum light can be emitted to achieve adsorption and excitation of seeds; The detection and sorting device also includes: A transfer device (4) for moving the integrated adsorption and excitation device (3); and The spectral detection device (5) can enable the integrated adsorption excitation device (3) to transfer the seeds from the end of the one-dimensional vibration guide groove (2) to the spectral detection device (5) through the transfer device (4), and the spectral detection device (5) can collect and detect the outgoing light after the excitation light passes through the seeds.

2. The automatic seed vitality detection and sorting device based on absorption spectrum according to claim 1 is characterized in that: The automatic loader (1) comprises a cylinder (101); and A first end cover (102) and a second end cover (103) are provided at both ends of the cylinder (101), wherein the first end cover (102) is configured as a closed structure, and a circular hole (1031) is opened at the center of the second end cover (103); A blade (104) installed inside the cylinder (101) and close to one end of the first end cover (102); A bottom support (105), the cylinder (101) is supported by gravity through the bottom support (105); A motor (106) disposed on the bottom bracket (105); The cylinder (101) is connected to a driving wheel (108) connected to the motor (106) via a belt (107), and the cylinder (101) is placed on the driving wheel (108). The cylinder (101) is driven to rotate by the friction force of the driving wheel (108).

3. The automatic seed vitality detection and sorting device based on absorption spectrum according to claim 2 is characterized in that: The cylinder (101) is made of acrylic material, with a diameter of 110 mm and a height of 100 mm; The blade (104) is a rectangular structure with a length of 40 mm and a width of 15 mm.

4. The automatic seed vitality detection and sorting device based on absorption spectrum according to claim 1 is characterized in that: The one-dimensional vibration guide groove (2) comprises a guide groove (201); and a vibrator (202) disposed at the bottom of the guide groove (201); A photoelectric sensor (203) is installed at the end of the guide groove (201). When the seed moves to the end of the guide groove (201), the photoelectric sensor (203) is blocked, and the photoelectric sensor (203) sends a signal to the vibrator (202) to stop the vibrator (202) from vibrating.

5. The automatic seed vitality detection and sorting device based on absorption spectrum according to claim 4 is characterized in that: The guide groove (201) is a long strip structure with a length of 30 cm; A groove (2011) is formed in the middle of the guide groove (201), and the width of the groove (2011) is determined according to the width of the seed to be detected; The model of the photoelectric sensor (203) is E3F-20C1; The vibrator (202) is a HX-100# linear vibrator.

6. The automatic seed vitality detection and sorting device based on absorption spectrum according to claim 1 is characterized in that: The model of the air compressor (303) is ZWB-0.071 / 7.

7. The automatic seed vitality detection and sorting device based on absorption spectrum according to claim 1 is characterized in that: The transfer device (4) comprises an electrically controlled rotary displacement platform (401); and A connecting arm (402) is mounted on the electrically controlled rotary displacement stage (401), and the integrated adsorption excitation device (3) is fixed to an end of the connecting arm (402) away from the electrically controlled rotary displacement stage (401).

8. The automatic seed vitality detection and sorting device based on absorption spectrum according to claim 1 is characterized in that: The spectrum detection device (5) comprises a fiber coupler (501), and the light passing through and emitted from the seeds is collected by the fiber coupler (501); an optical fiber (502) connected to the optical fiber coupler (501); A fiber optic spectrometer (503) connected to an end of the optical fiber (502) away from the optical fiber coupler (501).

9. The automatic seed vitality detection and sorting device based on absorption spectrum according to claim 7, characterized in that: The connecting arm (402) is made of aluminum alloy plate.

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