Seed germination rate and seedling phenotype detection device

Abstract

The utility model discloses a seed germination rate and seedling phenotype detection device. The detection device comprises a double-layer seedling raising frame system and a mobile shooting device. The double-layer seedling raising frame system can collect seed germination images in real time, can automatically lift up and put down a breeding plate on which seedlings grow, and collects seedling plant and root system phenotype images through a mobile shooting device. Automatic machine vision, industrial control and image processing technologies are used for achieving seed germination rate and seedling stage phenotype detection, manual operability can be effectively reduced, the seedling raising scheme designed through an aeroponic cultivation method is adopted, the cultivation requirements of water-cultivated crops and dry-cultivated crops are comprehensively met, and the seedling raising efficiency is improved. And support is provided for crop germplasm resource warehousing evaluation and agricultural breeding.

Description

Technical Field

[0001] The utility model relates to the field of agricultural automation, and particularly relates to a device for detecting seed germination rate and seedling stage phenotype. Background Art

[0002] Seed vigor is an important indicator reflecting seed quality, and its germination vigor directly affects the yield. Seeds with high vigor have a fast germination speed, neat emergence, and good stress tolerance. At present, the detection of crop seed vigor needs to be carried out according to national standards through a germination test. The seeds are placed in a germination chamber, and after a certain period of time, the roots, stems, and leaves of the seedlings are detected to determine the germination rate of the seeds. In recent years, using machine vision technology to achieve seed vigor detection has become a hot issue in phenotype research. At present, the detection of seed roots, stems, and leaves is mainly manual. Manually measuring the phenotypic parameters of seed germination roots, stems, and leaves is not only time-consuming and laborious, with low efficiency, but also subjective, affecting the test results. Summary of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a device for detecting seed germination rate and seedling stage phenotype, so as to solve the problems of low efficiency, manual dependence, insufficient data accuracy, and neglecting important information of seedling stage phenotype existing in traditional seed vigor detection. Further, using machine vision technology, quickly and accurately complete the detection of seed germination rate, observe and analyze the phenotypic changes of seedlings at the seedling stage, realize rapid and efficient detection of seed vigor and multi-dimensional continuous monitoring of seedling stage phenotype, and provide more comprehensive support for the detection of germplasm resource vigor and agricultural production breeding.

[0005] (2) Technical Solutions

[0006] The utility model provides a device for detecting seed germination rate and seedling stage phenotype to solve its technical problems.

[0007] A seed germination rate and seedling stage phenotype detection device, comprising a double-layer seedling-raising rack system and a mobile shooting device; the double-layer seedling-raising rack system includes a stainless-steel shelf, a cultivation pot unit, a Z-axis module, an X-axis module, a plant growth lamp, and a fixed shooting device; the stainless-steel shelf has two upper and lower layers for placing two layers of cultivation pot units. Each layer of the cultivation pot unit is provided with a plurality of strip-shaped breeding plates placed side by side, and limiting card slots are provided at both ends of each breeding plate; the Z-axis module is fixed on the left and right sides of the stainless-steel shelf, and a smooth shaft rod is installed on the slider of the Z-axis module. The smooth shaft rod cooperates with the limiting card slots of the breeding plate and can drive the breeding plate to move and reset in the vertical direction; the X-axis module is fixed on the front and back sides of the stainless-steel shelf and can drive the entire Z-axis module to move integrally in the X-axis direction, facilitating the Z-axis module to lift and lower each breeding plate in turn; the plant growth lamp is fixed at the top of each layer of the cultivation pot unit of the stainless-steel shelf to provide light for plant growth; the fixed shooting device is fixed at the top of each layer of the cultivation pot unit of the stainless-steel shelf through a horizontal displacement module and can move above the breeding plate to be measured on the horizontal plane for shooting; the mobile shooting device includes a mobile robot and a camera lens installed thereon, which can move freely along a preset track and shoot the plants and roots of the breeding plate from the side of the double-layer seedling-raising rack system.

[0008] Preferably, external double-bearing linear guide rails are provided at the upper and lower positions on the left and right sides of the stainless-steel shelf to reduce the load borne by the X-axis and improve the stability of the Z-axis module when lifting and lowering the breeding plate; limiting card slots are provided on both sides of the bottom of the breeding plate to facilitate the smooth shaft rod to be inserted, which can cooperate with the smooth shaft rod to work, realize the firm connection between the Z-axis module and the breeding plate, and drive the breeding plate to move and reset in the vertical direction.

[0009] Preferably, the cultivation pot unit includes a breeding pot, a breeding plate, and an atomizing nozzle; the breeding pot is made of black POM material and consists of multiple POM plates to form a bottomless and sealed structure on all sides, and is fixed at the bottom position of each layer of the cultivation pot unit of the double-layer stainless-steel shelf by hand-tightening screws; limiting smooth shafts are provided at the left and right ends of the breeding pot for limiting the breeding plate, and a water pipe is installed inside the breeding pot for connecting the atomizing nozzle; the breeding plate is made of black POM material, and two limiting card slots are provided at both ends of each breeding plate. One of them is clamped with the smooth shaft rod on the Z-axis module for lifting and lowering the breeding plate, and the other is clamped with the limiting smooth shaft on the breeding pot to prevent the position deviation caused by manual placement of the breeding plate; the atomizing nozzle is made of stainless steel and is fixed by threaded connection through the water pipe installed inside the breeding pot. Several atomizing nozzles installed in the breeding pot can spray the roots in a full-coverage manner.

[0010] Preferably, the mobile shooting device further comprises a control unit, an action unit, and a phenotype acquisition unit; the control unit is installed at the center of the upper layer of the mobile robot in a form fixed by screws; the action unit includes a collaborative manipulator and an attitude sensor, the collaborative manipulator is fixed at the center of the upper layer of the control unit by screws, the attitude sensor is fixed by screws using SPCC sheet metal, and the SPCC sheet metal is connected and fixed to the collaborative manipulator by screws; the phenotype acquisition unit includes a light source, a camera, and a lens, the light source is connected and fixed by screws using SPCC sheet metal, the camera and the lens are connected and fixed in a threaded form, and the camera is connected and fixed by screws using SPCC sheet metal.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the present utility model has the following technical advantages. First, the present utility model designs a seedling-stage plant and root phenotype detection system, and the camera installed on the mobile shooting device takes pictures of the breeding plate lifted by the module from the side, realizing continuous acquisition of plant and root phenotypes, obtaining key phenotypic characteristics during the growth of seedlings, and improving the efficiency of accurate phenotype identification. Second, the present utility model also includes a seed germination rate detection function, and the fixed shooting device is used to realize real-time detection of the seed germination rate, effectively screening out seeds with excellent germination characteristics and improving the accuracy of seed screening. Finally, the present utility model designs a seedling raising scheme based on the aeroponics method, fully meeting the diverse cultivation requirements of paddy and dryland crops, and can provide a more scientific and reasonable environment for the growth analysis of crops according to different stress levels such as nitrogen, phosphorus, potassium, and salinity in experimental designs. This device uses automated machine vision, industrial control, and image processing technologies to realize seed vigor detection, and has advantages such as fast image acquisition speed, high accuracy, and strong universality, providing important support for improving the quality of germplasm resources, agricultural breeding, and production in China. Description of the drawings

[0013] Figure 1 It is the overall schematic diagram of the present utility model.

[0014] Figure 2 It is the schematic diagram of the double-layer seedling raising rack system of the present utility model.

[0015] Figure 3 It is the schematic diagram of the cultivation pot unit of the present utility model.

[0016] Figure 4 It is the schematic diagram of the mobile shooting device of the present utility model.

[0017] Figure 5 It is the schematic diagram of the action unit and the phenotype acquisition unit of the present utility model.

[0018] Figure 1Chinese: 1 - Double - layer seedling - raising rack system, 2 - Mobile shooting device

[0019] Figure 2 Chinese: 11 - Stainless - steel shelf, 12 - Cultivation pot unit, 13 - Z - axis module, 14 - X - axis module, 15 - Plant growth lamp, 16 - Fixed shooting device.

[0020] Figure 3 Chinese: 121 - Breeding pot, 122 - Breeding plate, 123 - Atomizing nozzle, 124 - Hand - tightened screw, 125 - Limit optical axis, 126 - Limit card slot.

[0021] Figure 4 Chinese: 21 - Control unit, 22 - Action unit, 23 - Phenotype acquisition unit.

[0022] Figure 5 Chinese: 221 - Collaborative manipulator, 222 - Attitude sensor, 223 - SPCC sheet metal, 231 - Light source, 232 - Camera, 233 - Lens. Detailed implementation manners

[0023] To make the purpose, technical solutions and beneficial effects of the present utility model clearer, the technical solutions of the present utility model will be clearly described below in conjunction with the accompanying drawings in the present utility model.

[0024] As Figures 1-5 shown, the present utility model provides a device for detecting the seed germination rate and the seedling - stage phenotype.

[0025] The device includes a double - layer seedling - raising rack system 1 and a mobile shooting device 2;

[0026] The double-layer seedling-raising rack system 1 includes a stainless-steel shelf 11, a cultivation pot unit 12, a Z-axis module 13, an X-axis module 14, a plant growth lamp 15, and a fixed shooting device 16; the stainless-steel shelf 11 has two upper and lower layers for placing two layers of cultivation pot units 12. Each layer of the cultivation pot unit 12 is provided with a plurality of strip-shaped breeding plates 122 placed side by side. Limiting card slots 126 are provided at both ends of each breeding plate 122; the Z-axis module 13 is fixed on the left and right sides of the stainless-steel shelf 11. A smooth shaft rod is installed on the slider of the Z-axis module 13, and the smooth shaft rod cooperates with the limiting card slot 126 of the breeding plate 122 to drive the breeding plate 122 to move and reset in the vertical direction; the X-axis module 14 is fixed on the front and back sides of the stainless-steel shelf 11 and can drive the entire Z-axis module 13 to move integrally in the X-axis direction, facilitating the Z-axis module 13 to lift and lower each breeding plate 122 in turn; the plant growth lamp 15 is fixed on the top of each layer of the cultivation pot unit 12 of the stainless-steel shelf 11 to provide light for the growth of plants; the fixed shooting device 16 is fixed on the top of each layer of the cultivation pot unit 12 of the stainless-steel shelf 11 through a horizontal displacement module and can move above the breeding plate 122 to be measured on the horizontal plane for shooting; the mobile shooting device 2 includes a mobile robot and a camera lens installed thereon, and can move freely along a preset track to shoot the plants and roots of the breeding plate 122 from the side of the double-layer seedling-raising rack system 1.

[0027] External double-bearing linear guide rails are provided at the upper and lower positions on the left and right sides of the stainless-steel shelf 11 to reduce the load borne by the X-axis module 14 and improve the stability of the Z-axis module 13 when lifting and lowering the breeding plate 122; limiting card slots 126 facilitating the insertion of the smooth shaft rod are provided on both sides of the bottom of the breeding plate 122, which can cooperate with the smooth shaft rod to work, realize the firm clamping of the Z-axis module 13 and the breeding plate 122, and drive the breeding plate 122 to move and reset in the vertical direction.

[0028] The cultivation basin unit 12 includes a breeding basin 121, a breeding plate 122, an atomizing nozzle 123, a hand screw 124, a limiting optical axis 125, and a limiting slot 126; the breeding basin 121 is made of black POM material, and is composed of a plurality of POM plates to form a topless and sealed structure on all sides; the hand screw 124 is made of stainless steel, and the cultivation basin unit 12 is fixed to the bottom position of the double-layer stainless steel shelf 11 through a thread; the left and right ends of the breeding basin 121 are provided with limiting optical axes 125 for limiting the breeding plate 122, and the breeding basin 121 is equipped with a water pipe inside to serve as an atomizing nozzle 123 is connected; the breeding plate 122 is made of black POM material, and two limit slots 126 are provided at both ends of each breeding plate 122, one of which is clamped with the optical axis rod on the Z-axis module for lifting and lowering the breeding plate 122, and the other is clamped with the limit optical axis 125 on the breeding pot 121 to avoid position deviation caused by manual placement of the breeding plate 122; the atomizing nozzle 123 is made of stainless steel, and is fixed by a threaded connection through a water pipe installed inside the breeding pot 121. Several atomizing nozzles 123 installed in the breeding pot 121 can fully cover the root system.

[0029] The mobile shooting device 2 also includes a control unit 21, an action unit 22 and a phenotype acquisition unit 23; the control unit 21 is installed in the upper center position of the mobile robot by screw fixation; the action unit 22 includes a collaborative manipulator 221 and a posture sensor 222, the collaborative manipulator 221 is fixed in the upper center position of the control unit 21 by screws, the posture sensor 222 is fixed by SPCC sheet metal 223 by screws, and the SPCC sheet metal 223 is connected and fixed to the collaborative manipulator 221 by screws; the phenotype acquisition unit 23 includes a light source 231, a camera 232 and a lens 233, the light source 231 is connected and fixed by SPCC sheet metal 223 by screws, the camera 232 and the lens 233 are connected and fixed by threads, and the camera 232 is connected and fixed by SPCC sheet metal 223 by screws.

[0030] When the device is actually used, the seeds are placed on the breeding plate 122 of the cultivation basin unit 12 by humans. When the seeds germinate under suitable conditions, the fixed shooting device 16 on the top of the double-layer seedling rack system 1 collects the seed germination image in real time for the detection of seed germination rate. The seedlings are photosynthesized by the plant growth lamp 15; the roots of the seedlings grow downward in the breeding basin 121 and absorb water and nutrients through the atomizing nozzle 123. The Z-axis module 13 and the X-axis module 14 fixed to the stainless steel shelf 11 cooperate to realize the lifting and lowering of the breeding plate 122. The breeding plate 122 is lifted to reveal the root system, and the mobile shooting device 2 completes the collection of the plant and root phenotypes of the seedlings from the side of the double-layer seedling rack system 1.

[0031] The specific embodiments described in this application are only examples to illustrate the main idea of the present utility model. Those skilled in the technical field to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but they will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A device for detecting the germination rate of seeds and the phenotypic characteristics during the seedling stage, characterized in that, It includes a double-layer seedling raising rack system and a mobile shooting device; the double-layer seedling raising rack system includes a stainless-steel shelf, a cultivation pot unit, a Z-axis module, an X-axis module, a plant growth lamp, and a fixed shooting device; the stainless-steel shelf has 2 upper and lower layers for placing 2 layers of cultivation pot units. Each layer of the cultivation pot unit is provided with a plurality of strip-shaped breeding plates placed side by side, and both ends of each breeding plate are provided with limit card slots; the Z-axis module is fixed on the left and right sides of the stainless-steel shelf, and a light axis rod is installed on the slider of the Z-axis module. The light axis rod cooperates with the limit card slot of the breeding plate to drive the breeding plate to move and reset in the vertical direction; the X-axis module is fixed on the front and back sides of the stainless-steel shelf and can drive the entire Z-axis module to move integrally in the X-axis direction, facilitating the Z-axis module to lift and lower each breeding plate in turn; the plant growth lamp is fixed on the top of each layer of the cultivation pot unit of the stainless-steel shelf to provide light for plant growth; the fixed shooting device is fixed on the top of each layer of the cultivation pot unit through a horizontal displacement module and can move above the breeding plate to be measured on the horizontal plane for shooting; the mobile shooting device includes a mobile robot and a camera lens installed thereon, and can move freely along a preset track to shoot the plants and roots of the breeding plate from the side of the double-layer seedling raising rack system.

2. The seed germination rate and seedling stage phenotype detection device according to claim 1, wherein External double-bearing linear guides are provided at the upper and lower positions on the left and right sides of the stainless-steel shelf to reduce the load borne by the X-axis and improve the stability of the Z-axis module when lifting and lowering the breeding plate; both sides of the bottom of the breeding plate are provided with limit card slots for facilitating the insertion of the light axis rod, which can cooperate with the light axis rod to work, realize the stable connection between the Z-axis module and the breeding plate, and drive the breeding plate to move and reset in the vertical direction.

3. The seed germination rate and seedling stage phenotype detection device according to claim 1, characterized in that The cultivation pot unit includes a breeding pot, a breeding plate, an atomizing nozzle, a hand-tightening screw, a limit light axis, and a limit card slot; the breeding pot is made of black POM material and consists of multiple POM plates to form a sealed structure without a top on all sides; the hand-tightening screw is made of stainless-steel material and fixes the cultivation pot unit at the bottom position of the double-layer stainless-steel shelf through threads; limit light axes are provided at the left and right ends of the breeding pot for limiting the breeding plate, and a water pipe is installed inside the breeding pot for connecting the atomizing nozzle; the breeding plate is made of black POM material, and 2 limit card slots are provided at both ends of each breeding plate. One of them is clamped with the light axis rod on the Z-axis module for lifting and lowering the breeding plate, and the other is clamped with the limit light axis on the breeding pot to prevent the position deviation caused by manually placing the breeding plate; the atomizing nozzle is made of stainless-steel material and is fixed by threaded connection through the water pipe installed inside the breeding pot. Several atomizing nozzles installed in the breeding pot can spray the roots in a full-coverage manner.

4. The seed germination rate and seedling stage phenotype detection device according to claim 1, characterized in that The mobile shooting device further includes a control unit, an action unit, and a phenotype acquisition unit; the control unit is installed at the central position on the upper layer of the mobile robot in a form fixed by screws; the action unit includes a collaborative manipulator and an attitude sensor, the collaborative manipulator is fixed at the central position on the upper layer of the control unit by screws, the attitude sensor is fixed by screws using SPCC sheet metal, and the SPCC sheet metal is connected and fixed to the collaborative manipulator by screws; the phenotype acquisition unit includes a light source, a camera, and a lens, the light source is connected and fixed by screws using SPCC sheet metal, the camera and the lens are connected and fixed in a threaded form, and the camera is connected and fixed by screws using SPCC sheet metal.

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