CN114711131B

CN114711131B - Laboratory crop seedling stage hydroponic device

Info

Publication number: CN114711131B
Application number: CN202210190497.2A
Authority: CN
Inventors: 李平; 蔺桂芬; 谢淑芹
Original assignee: Handan Academy Of Agricultural Sciences
Current assignee: Handan Academy Of Agricultural Sciences
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2023-06-06
Anticipated expiration: 2042-02-28
Also published as: CN114711131A

Abstract

Laboratory crops seedling stage hydroponic device, including the frame, its characterized in that: the device also comprises an upright post, wherein the upright post is fixedly arranged on the rack; a container assembly having a plurality of containers thereon for receiving a hydroponic nutrient solution and seedlings; the turnover disc is arranged on the upright post in a turnover way through a rotating shaft, and is provided with a facility for providing illumination and water necessary for growth for seedlings in the container assembly according to feedback regulation; the turnover disc is disc-shaped, a fan-shaped hollowed-out part is arranged on the turnover disc, a circular arc-shaped guide groove is formed in the outer edge of the fan-shaped hollowed-out part, a guide wheel is arranged in the guide groove in a rolling mode, the guide wheel is fixedly connected with one end of the swing arm through a connecting piece, the other end of the swing arm is rotatably arranged at the circle center of the disc, a swing motor is arranged above the turnover disc and can drive the swing arm to swing, a screw rod is arranged below the swing arm and driven by a radius motor arranged at one end of the swing arm, and a camera is further arranged on a sliding block of the screw rod.

Description

Laboratory crop seedling stage hydroponic device

Technical Field

The application relates to seedling breeding experimental facilities, concretely relates to laboratory crop seedling stage hydroponic device.

Background

In breeding science, it is often necessary to cultivate crop seeds that may produce new varieties to the seedling stage in order to observe their traits and biological characteristics. Since breeding requires analysis of a large number of progeny, seeds must be grown to seedling stage in as low a time as possible for field cultivation trials. Under such a requirement, hydroponics is a relatively common cultivation mode.

Hydroponic cultivation refers to cultivation by directly immersing plant roots in nutrient solution instead of soil by means of a water-based nutrient solution container. The existing water culture device is often a simple combination of a nutrient solution tank and an LED, the intelligent degree is not high, and simultaneously, for seeds with unknown habits which are newly acquired, the environmental conditions are not easy to change in cultivation, and the risk of cultivation failure is high. On the other hand, the seedling stage of laboratory cultivation acts, the growing environment is different from that of the field, and the cultivation is successful but the cultivation fails.

Disclosure of Invention

First technical problem

1. How to automatically adjust to grow as soon as possible for plants of unknown habit;

2. the environment of the laboratory water culture is as close to the actual cultivation environment as possible.

(II) technical scheme

Laboratory crops seedling stage hydroponic device, including the frame, its characterized in that: the device also comprises an upright post, wherein the upright post is fixedly arranged on the rack;

a container assembly having a plurality of containers thereon for receiving a hydroponic nutrient solution and seedlings;

the turnover disc is arranged on the upright post in a turnover way through a rotating shaft, and is provided with a facility for providing illumination and water necessary for growth for seedlings in the container assembly according to feedback regulation; the turnover disc is disc-shaped, a fan-shaped hollowed-out part is formed in the turnover disc, a circular arc-shaped guide groove is formed in the outer edge part of the fan-shaped hollowed-out part, a guide wheel is arranged in the guide groove in a rolling mode, the guide wheel is fixedly connected with one end of the swing arm through a connecting piece, the other end of the swing arm can be rotatably arranged at the circle center of the disc, a swing motor is arranged above the turnover disc and can drive the swing arm to swing, a screw rod is arranged below the swing arm and driven by a radius motor arranged at one end of the swing arm, and a camera is further arranged on a sliding block of the screw rod;

the control system can control the turning disc to provide different illumination conditions for different containers, can control the swing motor to drive the swing arm to sweep and the radius motor to drive the screw rod to drive the camera to precess in the radial direction of the turning disc, so that the camera traverses the covered area, controls the camera to shoot the growth change of seedlings in the container in the water planting process, collects and processes the shooting image, obtains the actual growth condition of the seedlings under different illumination conditions according to the change of the image, and the control system program feeds back and adjusts illumination parameters according to the difference of different growth conditions.

Further, the container assembly 5 comprises a container support rotatably arranged on the frame, the container support is circular, the container support is divided into a sector area with a opening angle of A, B, C being 120 degrees, a plurality of containers are arranged in each area, the rotating mechanism comprises a gear set which is arranged below the frame and is in transmission connection with the container support, a rotating motor for driving the gear set to rotate, and the control system controls the rotating motor to drive the container support to rotate for 120 degrees every 8 hours.

Further, the containers are uniformly distributed on the inner ring and the outer ring of the container support, the inner ring is 6 containers, the outer ring is 12 containers, and test tubes of the inner ring and the outer ring are arranged in a hollow manner at circumferential angle positions; the sector grooves on the turnplate are opposite to the C area on the container support, the corresponding A area installation parts are arranged on the turnplate and opposite to the container on the A area of the container support, and color-changing lamps are arranged under each A area installation part; the turning disc is provided with a plurality of B area installation parts corresponding to the positions opposite to the containers in the B area of the container support, each B area installation part is provided with a gas-liquid spray head, and the color-changing lamps can emit light waves with different frequencies according to the control system program; the gas-liquid spray head may spray fluid toward the opposing container.

Further, the fluid is one or more of oxygen, carbon dioxide, pure water and nutrient solution.

Further, the control system program initially sets each color-changing lamp to irradiate light with different colors, records and compares the growth condition of each container through the camera every 24 hours, changes the colors of the color-changing lamps according to the different growth conditions, and performs feedback adjustment.

Further, the different colors of light at least comprise violet light, blue light, green light and red light.

Further, the container is a graduated transparent test tube.

(III) beneficial effects

(1) Three major requirements of the application to automated hydroponics: the water, the illumination and the image are divided into three blocks to work, which exactly corresponds to the natural biological rhythm in 3*8 hours=24, accords with the actual growth condition of the field, works in a time-sharing way and has high cultivation success rate;

(2) The feedback regulation system formed by the program-controlled color-changing light and the image acquisition can be used for acquisition and comparison every other day, and the color of the light is automatically tried to be changed in a trial-and-error mode, so that the color light which is most suitable for seedling growth is finally found;

(3) The system can uniformly realize the most rapid successful seedling cultivation for seeds with consistent characters, and can automatically find matched hydroponic parameters for seedlings of different plants even with different varieties and character differences after breeding, thereby greatly shortening the research time.

Drawings

FIG. 1 is a general schematic of the present application, with unnecessary components such as piping, controller chassis, and cabling omitted;

FIG. 2 is an enlarged view of a portion of the hydroponic container of FIG. 1 with a seedling therein;

FIG. 3 is a front view of the present application;

FIG. 4 is an overall view of the present application viewed at another angle;

FIG. 5 is a top view of the present application;

FIG. 6 is an enlarged view of a portion of FIG. 4;

FIG. 7 is another angular view of FIG. 6, with stationary elements omitted;

FIG. 8 is the view of FIG. 7 without elements omitted;

FIG. 9 is a schematic diagram of a receptacle layout;

fig. 10 is a side partial view according to the present application.

Reference numerals

1. Rack

2. Upright post

3. Rotating shaft

4. Turnplate

5. Container assembly

6. Rotating mechanism

7. Hollowed-out part

8. Guide groove

9. Guide wheel

10. Connecting piece

11. Swing arm

12. Swing motor

13. Radius motor

14. Screw rod

15. Camera head

16. Container holder

17. Container

18. Gear set

19. Rotary motor

Area a mounting

Area b mounting

22. Gas-liquid spray head

23. Colour-changing lamp

Detailed Description

The invention is further illustrated below with reference to examples.

As shown in fig. 1 to 10, a laboratory crop seedling stage water planting device according to the present application includes a frame 1, and is characterized in that: the device also comprises an upright post 2, wherein the upright post 2 is fixedly arranged on the frame 1;

a container assembly 5 on which a plurality of containers 17 containing hydroponic nutrient solution and seedlings are provided;

the turnover disc 4 is arranged on the upright post 2 in a turnover way through a rotating shaft 3, and is provided with illumination and water which are necessary for providing growth for seedlings in the container assembly according to feedback regulation; the turning plate is disc-shaped, a fan-shaped hollowed-out part 7 is formed in the turning plate, a circular arc-shaped guide groove 8 is formed in the outer edge part of the fan-shaped hollowed-out part, a guide wheel 9 is arranged in the guide groove 8 in a rolling mode, the guide wheel 9 is fixedly connected with one end of a swinging arm 11 through a connecting piece 10, the other end of the swinging arm 11 can be rotatably arranged at the circle center of the disc, a swinging motor 12 is arranged above the turning plate 4 and can drive the swinging arm to swing, a screw rod 14 is arranged below the swinging arm, the screw rod 14 is driven by a radius motor 13 arranged at one end of the swinging arm, and a camera 15 is further arranged on a sliding block of the screw rod 14;

the control system can control the turning disc to provide different illumination conditions for different containers, can control the swing motor to drive the swing arm to sweep and the radius motor to drive the screw rod to drive the camera 15 to precess in the radial direction of the turning disc so as to enable the camera to traverse the covered area, and control the camera to shoot the growth change of seedlings in the container in the water planting process, acquire and image process the shooting image, obtain the actual growth condition of the seedlings under different illumination conditions according to the change of the image, and the control system program feeds back and adjusts illumination parameters according to the difference of different growth conditions.

Generally, the illumination intensity, illumination time and illumination color have great influence on the growth of plants, especially the light wave color (the influence of light waves and containers on the growth of test tube plantlets of sweet potatoes, tang Jun and the like), but the influence of light with different colors on the plants is different, so that some seedlings can be delayed, and some seedlings can be grown faster.

However, in the seedling stage of many plants, the spectrum of visible light is wide, and in such a long period of time, if the seedling stage test is completed one by one when the plants with unknown properties are cultivated, the efficiency is low, and when the seedlings need to emerge in a concentrated short time, the highest efficiency cannot be automatically adjusted.

The application designs a program control adjusting system, and the influence of different conditions such as illumination on plants can be found in the shortest period through photographing comparison of growth conditions, so that test conditions are changed, or seedlings are concentrated in a short time.

Further, the container assembly 5 comprises a container support 16 rotatably arranged on the frame, the container support 17 is circular, the container support is divided into A, B, C three sector areas with 120 degrees of opening angles, a plurality of containers 17 are arranged in each area, the rotating mechanism 6 comprises a gear set 18 arranged below the frame and in transmission connection with the container support, a rotating motor 19 for driving the gear set to rotate, and the control system controls the rotating motor to drive the container support to rotate for 120 degrees every 8 hours.

In the scheme, because the turnplate is motionless relative to the container assembly, the container assembly rotates for 120 degrees every 8 hours under the drive of the rotating mechanism, namely 3 times of rotation rotate for one circle, namely 24 hours for one period, and the containers distributed in the A, B, C area are respectively illuminated for 8 hours, so that the cultivation seedlings are close to the actual growing environment, and the cultivation success rate is increased.

Further, as shown in fig. 9, the containers 17 are uniformly distributed on the inner ring and the outer ring of the container support, the inner ring is 6 containers, the outer ring is 12 containers, and test tubes of the inner ring and the outer ring are arranged in a hollow manner at circumferential angle positions; as shown in fig. 5, the sector grooves on the turnplate are opposite to the C area on the container support, the positions on the turnplate opposite to the containers on the A area of the container support are provided with corresponding A area installation parts, and color-changing lamps are arranged under each A area installation part; the turning disc is provided with a plurality of B area installation parts corresponding to the positions opposite to the containers in the B area of the container support, each B area installation part is provided with a gas-liquid spray head, and the color-changing lamps can emit light waves with different frequencies according to the control system program; the gas-liquid spray head may spray fluid toward the opposing container.

In the above arrangement, all test tubes are virtually divided into three groups, one group is photographed, one group is illuminated, one group is supplemented with liquid, and the three corresponding groups are all treated for 8 hours, then rotated by 120 degrees, and rotated, just about one day and night as one cycle.

The sprayed carbon dioxide can be stored in the test tube because of being heavier than air, so that the water culture container has a needed environment. As the water culture progresses, it is also necessary to use a spray head to supplement the liquid.

In the working mode, seedlings of the same or different varieties can be put into a container for hydroponics without distinction, and are randomly irradiated by chromatic light, the growth conditions are compared every 24 hours, so that the automatic adjustment of the chromatic light is performed, the adjustment mechanism can be that, by default, the color of a color-changing lamp is changed by moving leftwards every other day according to the color spectrum, and if a good growth promoting effect is always received, the seedlings are always moved leftwards; and if the effect is not good, the color change is changed to move rightwards from the original color press. The specific color change magnitude and algorithm can be set by the experiment manager.

Further, the container is a transparent test tube with scales, and the growth condition of the seedlings can be observed more intuitively from the scales.

Further, the control system is connected with the upper computer, and the upper computer can read data acquired by the system and control signals sent by the system and change a control program on line.

The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims

1. Laboratory crops seedling stage hydroponic device, including the frame, its characterized in that: the device also comprises an upright post, wherein the upright post is fixedly arranged on the rack;

the turnover disc is arranged on the upright post in a turnover way through a rotating shaft, and is provided with a facility for providing illumination and water necessary for growth for seedlings in the container assembly according to feedback regulation; the turning plate is disc-shaped, a fan-shaped hollowed-out part is formed in the turning plate, a circular arc-shaped guide groove is formed in the outer edge part of the fan-shaped hollowed-out part, a guide wheel is arranged in the guide groove in a rolling mode, the guide wheel is fixedly connected with one end of the swing arm through a connecting piece, the other end of the swing arm is rotatably arranged at the circle center of the disc-shaped part, a swing motor is arranged above the turning plate and drives the swing arm to swing, a screw rod is arranged below the swing arm and driven by a radius motor arranged at one end of the swing arm, and a camera is further arranged on a sliding block of the screw rod;

the control system controls the turning disc to provide different illumination conditions for different containers, controls the swing motor to drive the swing arm to sweep and controls the radius motor to drive the screw rod to drive the camera to precess in the radius direction of the turning disc so as to enable the camera to traverse the covered area, controls the camera to shoot the growth change of seedlings in the containers in the water planting process, collects and processes the shooting images, obtains actual growth conditions of the seedlings under different illumination conditions according to the change of the images, and controls a system program to feed back and adjust illumination parameters according to the difference of different growth conditions;

the container assembly comprises a container support rotatably arranged on the frame, the container support is round, the container support is divided into three sector areas with 120 degrees of opening angles of A, B, C, a plurality of containers are arranged in each area, the rotating mechanism comprises a gear set which is arranged below the frame and is in transmission connection with the container support, a rotating motor for driving the gear set to rotate, and the control system controls the rotating motor to drive the container support to rotate for 120 degrees every 8 hours;

the containers are uniformly distributed on the inner ring and the outer ring of the container support, the inner ring is 6 containers, the outer ring is 12 containers, and test tubes of the inner ring and the outer ring are arranged in a hollow manner at circumferential angle positions; the sector grooves on the turnplate are opposite to the C area on the container support, the corresponding A area installation parts are arranged on the turnplate and opposite to the container on the A area of the container support, and color-changing lamps are arranged under each A area installation part; the position on the turning disc, which is opposite to the container on the container support B area, is provided with a corresponding number of B area installation parts, each B area installation part is provided with a gas-liquid spray head, and the color-changing lamp is controlled to emit light waves with different frequencies according to a control system program; the gas-liquid spray head sprays fluid to the container opposite to the container.

2. The laboratory crop seedling stage hydroponic apparatus of claim 1, wherein: the fluid is one or more of oxygen, carbon dioxide, pure water and nutrient solution.

3. The laboratory crop seedling stage hydroponic apparatus of claim 2, wherein: the control system program initially sets each color-changing lamp to irradiate light with different colors, records and compares the growth condition of each container through the camera every 24 hours, changes the colors of the color-changing lamps according to the different growth conditions, and carries out feedback adjustment.