A seed vitality detection device and method

Abstract

The present invention provides a seed vitality detection device and method, the seed vitality detection device comprises a germination device, a water supply device and an image acquisition module; the germination device comprises a seeding plate and a water absorption layer, the seeding plate is transparent, the seeding plate has a first surface, the first surface is structured with a seed groove, the seed groove extends along a first direction, and the water absorption layer is attached to the first surface; the water supply device is connected to the water absorption layer; the lens of the image acquisition module extends to the second surface of the seeding plate, the second surface is arranged opposite to the first surface, and the image acquisition module is connected to the image processing module. The present invention realizes the online detection of the vitality of the seeds to be tested, and ensures the detection efficiency and accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of seed vitality, and in particular to a seed vitality detection device and method. Background Art

[0002] Seedling growth determination is one of the important methods for seed vigor detection. It determines the seed vigor status based on seed growth characteristics such as seedling growth rate, seedling root length and sprout length. High-vigor seeds generally have fast seedling growth rate, longer root length and sprout length, while low-vigor seeds are relatively weak in these characteristics. Accurately measuring seed germination rate, daily seedling growth rate and morphological characteristics can help to accurately evaluate seed vigor.

[0003] When measuring vitality indicators in traditional seedling growth determination methods, the operation process is complicated, the efficiency is low, the subjective factors are large, and the consistency of results between different laboratories is not high, and the repeatability is poor. Due to the inaccurate measurement of seed embryo and root length, the growth rate cannot be quantitatively judged, and can only be judged qualitatively. It is difficult to meet the new requirements of modern agricultural production for rapid and accurate detection of seed vitality in multiple batches, and it is difficult to achieve widespread application and standardized measurement of seed vitality determination methods.

[0004] Although a variety of seed vitality detection methods have been proposed, it is still difficult to accurately detect seed vitality online. On the one hand, since sufficient water needs to be provided when seeds germinate, in the related technology, germination paper is used as a water absorption layer to provide moisture for seeds. However, during the germination process, the germination paper may dry and dehydrate, and it is impossible to ensure that the seeds to be tested are in an infiltration environment in real time, which affects the vitality detection of the seeds. On the other hand, in the seed vitality detection, testers often use a ruler to read the germination parameters of the seeds, and seed germination is random, and it is impossible to ensure that the roots and buds of each seed grow along a straight line. The roots and buds of most seeds will grow in a curved manner in space and the seed roots will be entangled with each other, which requires a lot of manpower and time to count the seed germination parameters, the test efficiency is low, and it is difficult to ensure the accuracy of the test results. Summary of the invention

[0005] The present invention provides a seed vitality detection device and method, which are used to solve the current problem that it is difficult to accurately detect the vitality of seeds online.

[0006] The present invention provides a seed vitality detection device, comprising: a germination device, a water supply device and an image acquisition module; the germination device comprises a seeding plate and a water absorption layer, the seeding plate is transparent, the seeding plate has a first surface, the first surface is structured with a seed groove, the seed groove extends along a first direction, and the water absorption layer is in contact with the first surface; the water supply device is connected to the water absorption layer; the lens of the image acquisition module extends to the second surface of the seeding plate, the second surface is arranged opposite to the first surface, and the image acquisition module is used to be connected to the image processing module.

[0007] According to a seed vitality detection device provided by the present invention, two seeding plates are provided, the first surfaces of the two seeding plates are arranged opposite to each other, the water absorbing layer is clamped between the two seeding plates, and the two seeding plates are connected.

[0008] According to a seed vitality detection device provided by the present invention, the water absorption layer includes: a first germination paper layer, a sponge layer and a second germination paper layer; the sponge layer is clamped between the first germination paper layer and the second germination paper layer; the surface of the first germination paper layer away from the sponge layer is bonded to the first surface of one of the seeding boards, and the surface of the second germination paper layer away from the sponge layer is bonded to the first surface of the other seeding board.

[0009] According to a seed vitality detection device provided by the present invention, the seed grooves include a plurality of seed grooves, which are sequentially spaced apart along the width direction of the seeding plate; and the first direction is parallel to the length direction of the seeding plate.

[0010] According to a seed vitality detection device provided by the present invention, the water supply device includes a water trough, and a card slot is constructed on the trough wall on the opposite side of the water trough, the germination device is inserted in the card slot, and the water absorption layer is used to absorb water from the water trough.

[0011] According to a seed vitality detection device provided by the present invention, the water supply device also includes a water pump and a water supply pipe; the water pump is installed on the water supply pipe; one end of the water supply pipe is connected to the water tank, and the other end is connected to the first end of the water absorption layer, and the second end of the water absorption layer extends toward the water tank; the height set at the first end is higher than the height set at the second end.

[0012] According to a seed vitality detection device provided by the present invention, a spray section is provided at the other end of the water supply pipe, and the spray section extends along the width direction of the seed plate; a plurality of spray ports are opened on the pipe wall of the spray section, and the plurality of spray ports are arranged along the width direction, and the spray ports are connected to the first end of the water absorption layer.

[0013] According to a seed vitality detection device provided by the present invention, the card slots include a plurality of card slots, which are arranged in sequence along the second direction of the water trough; and / or the bottom end of the card slot is located on the upper side of the bottom of the water trough to form a height difference between the bottom end of the card slot and the bottom of the water trough; the distance between the second end of the water absorption layer and the bottom of the water trough is smaller than the distance between the end of the seed plate close to the water trough and the bottom of the water trough.

[0014] According to a seed vitality detection device provided by the present invention, the image acquisition module includes a CCD camera, the lens of the CCD camera faces the second surface of the seed plate, and the optical axis of the CCD camera is perpendicular to the second surface; the CCD camera is communicatively connected to the image processing module.

[0015] The present invention also provides a detection method for the seed vitality detection device as described above, comprising: clamping the seeds to be tested between a seeding plate and a water absorption layer, placing the seeds to be tested in a seed groove, ensuring that the ventral surface of the seeds to be tested is in contact with the surface of the water absorption layer, and the radicles of the seeds to be tested are arranged along a first direction; connecting a water supply device to the water absorption layer; extending the lens of an image acquisition module toward the second surface of the seeding plate, controlling the image acquisition module to collect image information of the seeds to be tested, and processing the image information with an image processing module to calculate the vitality index of the seeds to be tested.

[0016] The present invention provides a seed vitality detection device and method. By arranging a germination device, a water supply device and an image acquisition module, the seeds to be tested are clamped between a seeding plate and a water absorption layer. Since the seed grooves on the seeding plate ensure that the root system of the seeds to be tested grows along a first direction, air is also provided for the seeds to be tested, and the water absorption layer provides the required moisture for the germination of the seeds to be tested, the seeds to be tested are placed in a suitable germination environment, and the roots of different seeds to be tested will not be entangled with each other, which is convenient for the image acquisition module to directly obtain the image information of the seeds to be tested, and the image processing module processes the image information to calculate the vitality index of the seeds to be tested, thereby realizing online detection of the vitality of the seeds to be tested and ensuring detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is one of the main structural schematic diagrams of a seed vitality detection device provided by the present invention;

[0019] Figure 2 This is the second main structural diagram of a seed vitality detection device provided by the present invention (excluding the image acquisition module);

[0020] Figure 3 It is a schematic diagram of the installation structure of the germination device provided by the present invention in a water tank;

[0021] Figure 4 It is a structural schematic diagram of the germination device provided by the present invention;

[0022] Figure 5 The present invention provides Figure 4 Schematic diagram of AA structure;

[0023] Figure 6 It is a schematic diagram of the flow of the detection method based on the seed vitality detection device provided by the present invention;

[0024] Reference numerals:

[0025] 1: Germination device; 2: Water supply device; 3: Image acquisition module;

[0026] 4: seeds to be tested; 11: seeding plate; 12: water absorption layer;

[0027] 120: first germination paper layer; 121: sponge layer; 122: second germination paper layer;

[0028] 21: water tank; 22: water pump; 23: water supply pipe;

[0029] 210: card slot; 31: CCD camera; 32: camera bracket;

[0030] 5: Image processing module. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Combine the following Figure 1-Figure 6 The invention describes a seed vitality detection device and method.

[0033] like Figures 1 to 6As shown, this embodiment provides a seed vitality detection device, including: a germination device 1, a water supply device 2 and an image acquisition module 3; the germination device 1 includes a seed plate 11 and a water absorption layer 12, the seed plate 11 is transparent, the seed plate 11 has a first surface, the first surface is configured with a seed groove, the seed groove extends along a first direction, and the water absorption layer 12 is in contact with the first surface; the water supply device 2 is connected to the water absorption layer 12; the lens of the image acquisition module 3 extends to the second surface of the seed plate 11, the second surface is arranged opposite to the first surface, and the image acquisition module 3 is connected to the image processing module 5.

[0034] Specifically, this embodiment provides a germination device 1, a water supply device 2 and an image acquisition module 3, and clamps the seeds to be tested 4 between the seeding plate 11 and the water absorption layer 12. Since the seed grooves on the seeding plate 11 not only ensure that the roots of the seeds to be tested 4 grow along the first direction, but also provide air for the seeds to be tested 4, and the water absorption layer 12 provides the required moisture for the germination of the seeds to be tested 4, the seeds to be tested 4 are placed in a suitable germination environment, and the roots of different seeds to be tested 4 will not be entangled with each other, which is convenient for the image acquisition module 3 to directly obtain the image information of the seeds to be tested 4, and the image processing module 5 processes the image information and calculates the vitality index of the seeds to be tested 4, thereby realizing online detection of the vitality of the seeds to be tested 4 and ensuring detection efficiency and accuracy.

[0035] It should be pointed out here that the seeding board 11 shown in this embodiment can be made of organic glass. By designing the seeding board 11 to be transparent, the image processing module 5 can shoot the seeds 4 to be tested through the seeding board 11 to obtain image information on the germination status of the seeds 4 to be tested in the seed groove.

[0036] At the same time, the seed grooves shown in this embodiment can be provided in multiples. This embodiment limits the growth space for germination of the seeds 4 to be tested by the seed grooves, which not only realizes the germination and growth of the seeds 4 to be tested in a plane, but also avoids the mutual entanglement between the roots of the seeds 4 to be tested, providing convenience for later image measurement. Therefore, based on the design of the seed grooves, this embodiment can effectively combine image processing technology to accurately calculate the root bud length of the seeds 4 to be tested. Compared with traditional manual or scale measurement methods, this embodiment can not only measure the length of the curved roots of taproot crops, but also realize the accurate measurement of the length of the intertwined roots of fibrous root crop seeds.

[0037] In addition, the water-absorbing layer 12 shown in this embodiment can be specifically a structural layer such as sponge, cotton cloth, germination paper, etc. known in the art. The structural layer has both the ability to absorb water and a certain water retention capacity to provide the required moisture for the germination of the seeds 4 to be tested.

[0038] like Figure 4 and Figure 5As shown, the seeding plates 11 shown in this embodiment are provided with two, the first surfaces of the two seeding plates 11 are arranged opposite to each other, the water absorbing layer 12 is clamped between the two seeding plates 11, and the two seeding plates 11 are connected by a bolt locking assembly. In this way, the germination device 1 shown in this embodiment can realize the simultaneous germination of the seeds 4 to be tested on both sides based on the two seeding plates 11, thereby increasing the number of seeds germinated at a single time.

[0039] like Figure 4 and Figure 5 As shown, the water-absorbing layer 12 shown in this embodiment includes: a first germination paper layer 120, a sponge layer 121 and a second germination paper layer 122; the sponge layer 121 is clamped between the first germination paper layer 120 and the second germination paper layer 122; the surface of the first germination paper layer 120 away from the sponge layer 121 is bonded to the first surface of one of the seeding plates 11, and the surface of the second germination paper layer 122 away from the sponge layer 121 is bonded to the first surface of the other seeding plate 11.

[0040] It should be noted that, in order to improve the detection efficiency, a plurality of seed slots are provided in the present embodiment, and are sequentially arranged at intervals along the width direction of the seeding plate 11. For each seed slot, the first direction in which it extends is parallel to the length direction of the seeding plate 11. The cross section of the seed slot is specifically rectangular, and the cross section area of ​​the seed slot can be set between 1.5 mm*5 mm and 2 mm*15 mm.

[0041] Furthermore, if Figure 1 and Figure 2 As shown, the water supply device 2 shown in this embodiment includes a water tank 21, and a slot 210 is configured on the tank wall on the opposite side of the water tank 21, and the germination device 1 is inserted into the slot 210. When water is loaded in the water tank 21 and the second end of the water absorption layer 12 is immersed below the water level line, the water absorption layer 12 can directly absorb water from the water tank 21 due to the capillary phenomenon, and the water diffuses along the water absorption layer 12 to the position of the seeds to be tested 4, so as to provide water for the germination of the seeds to be tested 4.

[0042] Among them, the card slots 210 shown in this embodiment can be multiple, and the multiple card slots 210 are sequentially spaced along the second direction of the water tank 21. During actual testing, multiple germination devices 1 can be quickly inserted into each card slot 210, which is not only convenient to operate, but also can meet the germination and measurement requirements of multiple batches of seeds 4 to be tested at the same time.

[0043] Furthermore, the water supply device 2 shown in this embodiment is also provided with a water pump 22 and a water supply pipe 23; the water pump 22 is installed on the water supply pipe 23; one end of the water supply pipe 23 is connected to the water tank 21, and the other end is connected to the first end of the water absorption layer 12, and the second end of the water absorption layer 12 extends to the water tank 21; the height set at the first end of the water absorption layer 12 is higher than the height set at its second end.

[0044] The water pump 22 shown in this embodiment is preferably a peristaltic pump. Since the other end of the water supply pipe 23 is connected to the first end of the water absorption layer 12, the peristaltic pump can intermittently supply water to the seeds 4 to be tested when working, so that water can diffuse from the first end to the second end of the water absorption layer 12 under the action of gravity, so as to further ensure that the water absorption layer 12 remains moist.

[0045] Furthermore, the other end of the water supply pipe 23 shown in this embodiment is provided with a spray section, which extends along the width direction of the seed plate 11; a plurality of spray ports are opened on the pipe wall of the spray section, and the plurality of spray ports are arranged along the width direction of the seed plate 11, and the spray ports are connected to the first end of the water absorption layer 12.

[0046] Furthermore, the bottom end of the slot 210 shown in this embodiment is located on the upper side of the bottom of the water tank 21 to form a height difference between the bottom end of the slot 210 and the bottom of the water tank 21; the distance between the second end of the water absorption layer 12 and the bottom of the water tank 21 is smaller than the distance between the end of the seed plate 11 close to the water tank 21 and the bottom of the water tank 21.

[0047] Specifically, the bottom end of the slot 210 shown in this embodiment is 15-25 mm away from the bottom of the water tank 21. The second end of the water absorbing layer 12 shown in this embodiment extends 3-5 mm from the end of the seed plate 11 close to the water tank 21. In this way, when the germination device 1 is inserted into the slot 210, it can be ensured that the second end of the water absorbing layer 12 is close to the bottom of the water tank 21, so that the second end of the water absorbing layer 12 is immersed below the water level of the water tank 21 and absorbs water from the water tank 21 through capillary phenomenon.

[0048] Furthermore, if Figure 1 As shown, the image acquisition module 3 shown in this embodiment includes a CCD camera 31, the lens of the CCD camera 31 faces the second surface of the seed plate 11, and the optical axis of the CCD camera 31 is perpendicular to the second surface; the CCD camera 31 is communicatively connected to the image processing module 5.

[0049] Specifically, in this embodiment, a camera bracket 32 ​​is mounted on the edge of the water tank 21, and the CCD camera 31 shown in this embodiment is installed on the camera bracket 32. A Mini USB2.0 interface is provided on the CCD camera 31, so that in this embodiment, the communication connection between the CCD camera 31 and the image processing module 5 can be realized through a USB data cable. Among them, the image processing module 5 can be a computer, an industrial computer, etc. known in the art. After the CCD camera 31 transmits the image information of the seeds 4 to be tested to the image processing module 5, the image processing module 5 can use the image processing software known in the art to measure, analyze and record the germination status of the seeds 4 to be tested, thereby realizing the continuous and automatic acquisition and analysis of the morphological parameters of the whole germination process of the seeds 4 to be tested.

[0050] like Figure 6 As shown, the present embodiment also provides a detection method for the seed vitality detection device as described above, comprising: S1, clamping the seeds to be tested between the seed plate and the water absorption layer, placing the seeds to be tested in the seed groove, ensuring that the ventral surface of the seeds to be tested is in contact with the surface of the water absorption layer, and the radicles of the seeds to be tested are arranged along the first direction; S2, connecting the water supply device to the water absorption layer; S3, extending the lens of the image acquisition module to the second surface of the seed plate, controlling the image acquisition module to collect image information of the seeds to be tested, and the image processing module processes the image information to calculate the vitality index of the seeds to be tested.

[0051] Specifically, in this embodiment, when the seeds to be tested are clamped between the seeding plate and the water absorption layer, the seeds to be tested are placed 3 to 4 cm away from the first end of the first germination paper layer or the second germination paper layer, and are evenly arranged in a straight line. At the same time, it is ensured that the radicle of the seeds to be tested in each seed groove is arranged vertically, and the ventral groove side of the seeds to be tested is in contact with the first germination paper layer or the second germination paper layer, so as to ensure that the germination direction of the seeds to be tested remains consistent.

[0052] Then, the germination device is assembled and vertically inserted into the slot on the water tank. Based on the installation structure of the germination device shown in the above embodiment, the second end of the water absorption layer can be immersed below the water level of the water tank and absorb water from the water tank through capillary phenomenon.

[0053] Next, the water pump is started to intermittently supply water to the first end of the water absorbing layer to keep the water absorbing layer moist and provide the required moisture for the germination of the seeds to be tested, thereby placing the seeds to be tested in a suitable germination environment.

[0054] Next, install a camera bracket, install a CCD camera on the camera bracket, and connect the CCD camera to the image processing module for communication, thereby completing the construction of the entire seed vitality detection system.

[0055] Finally, a suitable growth cycle is selected according to the characteristics of the seeds to be tested, and image information of the seeds to be tested is regularly collected at time intervals of the growth cycle. The image information is transmitted to the image processing module, which measures and analyzes the germination parameters of the seeds to be tested, and calculates vitality indicators such as germination potential, germination index, vitality index, and average germination rate of the seeds to be tested.

[0056] In summary, the scheme shown in this embodiment is based on machine vision technology, which realizes the full-automatic acquisition of the morphological parameters of the seeds to be tested during germination, can realize online measurement, does not need to separate the seeds to be tested from the germination environment, and effectively avoids the phenomenon of adhesion between the roots of the seeds and the germination paper during manual measurement. In this embodiment, the seeds to be tested are germinated and grown in a plane by clamping two seed-rowing plates, and the separation of the root systems between the seeds to be tested is also ensured. At the same time, this embodiment uses image processing technology to solve the problem that the baseline and scale on the existing slot plate cannot measure the length of the bent and intertwined root systems in the plane. At the same time, this embodiment also overcomes the difficulty that the germination paper alone cannot meet the water required for seed germination, reduces the influence of human subjective factors on the measurement data, and can efficiently and accurately obtain the vitality parameters of the seeds to be tested, making the vitality evaluation index of the seeds to be tested more reliable. Finally, this embodiment can also quickly analyze the collected data, conveniently integrate and manage the data information, not only simple to operate, but also can realize the simultaneous detection of the vitality of multiple batches of seeds, with high detection efficiency and accuracy.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seed vitality detection device, characterized in that: include: The germination device comprises a seeding plate and a water absorbing layer, wherein the seeding plate is transparent and has a first surface, wherein the first surface is provided with a seeding groove, wherein the seeding groove extends in a first direction, and wherein the water absorbing layer is in contact with the first surface; A water supply device connected to the water absorbing layer; An image acquisition module, wherein a lens of the image acquisition module extends toward a second surface of the seed plate, the second surface is arranged opposite to the first surface, and the image acquisition module is used to connect with an image processing module; There are two seeding plates, the first surfaces of the two seeding plates are arranged opposite to each other, the water absorbing layer is sandwiched between the two seeding plates, and the two seeding plates are connected; the water absorbing layer includes: a first germination paper layer, a sponge layer and a second germination paper layer; the sponge layer is sandwiched between the first germination paper layer and the second germination paper layer; The surface of the first germination paper layer away from the sponge layer is in contact with the first surface of one of the seeding boards, and the surface of the second germination paper layer away from the sponge layer is in contact with the first surface of another seeding board; the seed grooves include a plurality of grooves, which are arranged in sequence along the width direction of the seeding board; the first direction is parallel to the length direction of the seeding board.

2. The seed vitality detection device according to claim 1, characterized in that: The water supply device comprises a water tank, and a card slot is constructed on the tank wall on the opposite side of the water tank. The germination device is inserted into the card slot, and the water absorption layer is used to absorb water from the water tank.

3. The seed vitality detection device according to claim 2, characterized in that: The water supply device also includes a water pump and a water supply pipe; the water pump is installed on the water supply pipe; one end of the water supply pipe is connected to the water tank, and the other end is connected to the first end of the water absorption layer, and the second end of the water absorption layer extends to the water tank; the height set at the first end is higher than the height set at the second end.

4. The seed vitality detection device according to claim 3, characterized in that: A spray section is provided at the other end of the water supply pipe, and the spray section extends along the width direction of the seed plate; a plurality of spray ports are opened on the pipe wall of the spray section, and the plurality of spray ports are arranged along the width direction, and the spray ports are connected to the first end of the water absorption layer.

5. The seed vitality detection device according to claim 2, characterized in that: The card slots include a plurality of card slots, which are sequentially spaced apart along the second direction of the water tank; And / or, the bottom end of the groove is located on the upper side of the bottom of the water trough to form a height difference between the bottom end of the groove and the bottom of the water trough; the distance between the second end of the water absorption layer and the bottom of the water trough is smaller than the distance between one end of the seed plate close to the water trough and the bottom of the water trough.

6. The seed vitality detection device according to claim 1, characterized in that: The image acquisition module comprises a CCD camera, the lens of the CCD camera faces the second surface of the seed plate, and the optical axis of the CCD camera is perpendicular to the second surface; the CCD camera is communicatively connected with the image processing module.

7. A detection method of the seed vitality detection device according to any one of claims 1 to 6, characterized in that: include: The seeds to be tested are clamped between the seed arrangement plate and the water absorption layer, and the seeds to be tested are placed in the seed groove, ensuring that the ventral surface of the seeds to be tested is in contact with the surface of the water absorption layer, and the radicles of the seeds to be tested are arranged along the first direction; Connect the water supply device to the water absorption layer; The lens of the image acquisition module is extended to the second surface of the seeding plate, the image acquisition module is controlled to acquire image information of the seeds to be tested, and the image processing module is controlled to process the image information to calculate the vitality index of the seeds to be tested.

Images