TW201620377A - Plant growth system and optical radiation control method of light source for plant growth - Google Patents

Abstract

The present invention provides a plant growth system and an optical radiation control method of light source for plant growth. The plant culture system includes a container with at least one plant grows therein, arranged in a growing space; a light source for plant growth arranged above the container by a light intensity adjusting apparatus; a sensor and a processer, wherein the sensor arranges in the growing space and electrically connects to the processer, and wherein the processer further electrically connects to the light intensity adjusting apparatus. Specially, the sensor is configured to detect the vertical distance between the light source and an upper leaf of the plant, and the processer is configured to control the light intensity adjusting apparatus to change the light projection angle of the light source.

Description

Plant cultivation system and intensity control method for plant growth light source

The present invention relates to plant cultivation techniques, and more particularly to a plant cultivation system and a method for controlling the intensity of a plant growth light source which can give light of different intensity to the plant growth height.

In recent years, under the severe situation of global population growth and rapid changes in the environment, people are willing to pay higher unit prices to purchase high-security foods, prompting countries all over the world to actively invest in the development of plant cultivation systems, in order to be immune to the environment. Highly quality and safe plants or crops are stably affected by changes (such as typhoons, heavy rain, drought, cold damage and even land area reduction). On the other hand, as environmental awareness has gradually risen, LED light sources with energy saving and carbon reduction benefits have been widely used in various fields, such as plant cultivation light sources.

The plant breeding system is a scientific indoor (in-box) cultivation technique that can control the growth conditions of plants (such as humidity, room temperature and illuminance, etc.), nutrient fertilizer usage and productivity, but is traditionally used in cultivating plant growth. It has always been the use of light sources to project plants or crops from a fixed angle, and because of this, the following problems arise: when the plants grow over time, the light intensity is inversely proportional to the square of the distance of the light source from the plants. Because of the strong light, the upper leaves form a burnt black, and the lower leaves are wilted without light; more seriously, too much light will cause the plants to die.

The present invention is based on the creation of a breeding environment that is conducive to the growth of various types of plants. The main purpose is to provide a plant breeding system capable of adjusting the light projection angle according to the height of the plant growth and a method for controlling the intensity of the plant growth light source, so that the plant or the crop can stably obtain a suitable and sufficient amount of light, thereby enhancing the cultivation of the plant or the crop. quality.

In order to achieve the above object and effect, the present invention adopts the following technical solution: a plant cultivation system comprising: a box having a cultivation space; at least one cultivation container disposed in the cultivation space for planting at least one plant a light intensity adjusting device comprising an angle adjusting mechanism, a power mechanism, a processor and a sensor, wherein the angle adjusting mechanism is disposed in the cultivation space and located above the cultivation container; The mechanism is connected to the angle adjustment mechanism for use as a power source thereof; the sensor is disposed in the cultivation space and electrically connected to the processor, and the processor is further electrically connected to the power mechanism a cultivation light source connected to the angle adjustment mechanism; wherein the sensor can detect a vertical distance between the cultivation light source and an upper leaf of the plant, and the processor can The vertical distance is such that the power mechanism drives the angle adjustment mechanism to adjust the inclination angle of the cultivation light source with respect to a horizontal plane.

The present invention further adopts the following technical solution: a method for controlling the intensity of a plant growth light source, which is applicable to at least one plant in a cultivation space, comprising the following steps: First, providing a cultivation light source, and using the cultivation light source by an angle The adjustment mechanism is disposed above the at least one of the plants; and then, sensing by a sensor to generate a vertical distance value of the upper leaf of the plant relative to the cultivation light source; and then, via a processor The vertical distance controls a dynamic mechanism to actuate, and the power mechanism drives an angle adjustment mechanism to adjust an inclination angle of the cultivation light source with respect to a horizontal plane.

The present invention has at least the following beneficial effects: the present invention utilizes an inductor to detect the vertical distance between the cultivation light source and the upper leaf of the current plant, and uses this as a reference to adjust the tilt angle of the light source with respect to a horizontal plane, and then transmits the light source. The change in projection angle controls the intensity of light applied to the plant or crop. So, although the plant The material will grow with time, but during the growth process, not only the upper leaves can be stably subjected to suitable light intensity, but also the lower leaves can obtain sufficient light.

Furthermore, the present invention can cooperate with at least one set of environmental adjustment modules to facilitate adjustment of the amount of water supply in the cultivation space and the temperature and humidity of the environment, thereby creating a breeding environment conducive to the growth of various plants in the cultivation space.

Other objects and advantages of the present invention will be further understood from the technical aspects disclosed herein. The above and other objects, features, and advantages of the present invention will become more apparent from the aspects of the invention.

S‧‧‧Plant Cultivation System

1‧‧‧ cabinet

11‧‧‧Cultivate space

12‧‧‧Support frame

13‧‧‧Float board

2‧‧‧Cultivation container

3‧‧‧Light intensity adjustment device

31‧‧‧ Angle adjustment mechanism

311‧‧‧Fixed pedestal

312‧‧‧ Rotating base

313‧‧‧Mobile lifting components

32‧‧‧Power Agency

33‧‧‧Control Module

33a‧‧‧Sensor

33b‧‧‧ processor

331‧‧‧Signal Transceiver Unit

332‧‧‧ arithmetic unit

333‧‧‧Database

334‧‧‧Control unit

4‧‧‧Cultivating light source

5‧‧‧Environmental adjustment module

6‧‧‧ fogging device

61‧‧‧ fogger

611‧‧‧ liquid storage tank

612‧‧‧ Pressurizing unit

613‧‧‧ nozzle

62‧‧‧Main duct

63‧‧‧Shunt tube

7‧‧‧Aeration device

C‧‧‧vertical axis

H‧‧‧Vertical distance

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a state of use of a plant growing system according to a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view showing another state of use of the plant growing system of the first embodiment of the present invention.

3 is a functional block diagram of a control system of the present invention.

4 is a schematic flow chart of a method for controlling the strength of a plant growth light source of the present invention.

Fig. 5 is a cross-sectional view showing a state of use of the plant growing system of the second embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view showing another state of use of the plant growing system of the second embodiment of the present invention.

Fig. 7 is a cross-sectional view showing a state of use of the plant growing system of the third embodiment of the present invention.

Fig. 8 is a cross-sectional view showing another state of use of the plant growing system of the third embodiment of the present invention.

The disclosure of the present invention relates to a technical means for adjusting the angle of a light source according to the height of a plant. The technical means mainly senses the current growth height of the plant via an inductor, and adjusts the tilt angle of the light source based thereon. The intensity of light applied to the plant or crop is controlled by changes in the projection angle of the light source. Such a However, although plants grow with time, in the growth process, not only the upper leaves can be stably subjected to suitable light intensity, but also the lower leaves can obtain sufficient light.

The specific embodiments of the above-described technical means applied to the plant growing system will be explained through a plurality of embodiments and with the accompanying drawings, so that those skilled in the art can easily understand the main innovations of the present invention from the contents disclosed by the present invention. section. Modifications and variations made by those skilled in the art without departing from the spirit of the invention are intended to be within the scope of the invention.

[First Embodiment]

Please refer to FIG. 1 and FIG. 2, which are schematic cross-sectional views showing the plant growing system according to the first embodiment of the present invention in different use states. The plant cultivation system S of the present embodiment is a plant cultivation system for soil cultivation (using soil as a medium). Specifically, the plant system is held on the soil surface by the extension of the root system, and is absorbed by the roots. The soil absorbs the nutrients necessary for growth. The plant cultivation system S of the present embodiment is suitable for planting seed plants, such as wheat, peas, and those having a high empty germination rate.

The plant cultivation system S mainly comprises a box body 1, at least one cultivation container 2, a light intensity adjusting device 3, and a cultivation light source 4. The housing 1 defines a cultivation space 11 for plant or crop cultivation, and the partial structure (such as the side wall) of the cabinet 1 is made of a transparent material, so that it is convenient to check the condition of the plant or crop cultivation therein.

The cultivation container 2 is disposed in the cultivation space 11 for planting at least one plant. The cultivation container 2 is generally selected from a container capable of containing clay soil and various media, having a depth of 2 cm or more and a drainage hole at the bottom, but the present invention is not limited thereto; the plant or crop can be planted according to the plant/crop planted by the plant. Other types and types of suitable containers for soil cultivation are required for the variety or variety of plant/crop growth conditions.

The light intensity adjusting device 3 includes an angle adjusting mechanism 31, a power mechanism 32 and a control module 33. Specifically, the angle adjusting mechanism 31 is disposed in the cultivating space 11 and above the cultivation container 2, and can be used for cultivating and adjusting the light source 4 for cultivation. Luminous projection angle and distribution; power mechanism 32 is connected with angle adjustment mechanism 31 as its power source; control module 33 is electrically connected to power mechanism 32, control module 33 can be used for cultivation light source 4 and planted in cultivation The vertical distance H between the upper leaves of the plants in the container 2 is converted into an electrical signal to determine the most suitable light intensity of the plant, and then the power mechanism 32 drives the interlocking angle adjusting mechanism 31 to control the projection of the cultivation light source 4. angle.

Further, the angle adjusting mechanism 31 includes a fixed base 311, a rotating base 312, and a plurality of moving lifting assemblies 313. Wherein, one end of the fixed base frame 311 is fixedly connected to the inner wall surface of the top wall of the box body 1, and a vertical axis C is defined by extending in a direction away from the inner wall surface away from the inner wall surface; the rotating base 312 is installed. Combined with the other end of the fixed base frame 311, and rotatable about a vertical axis C; a plurality of the moving lifting assemblies 313 are mounted in a pair parallel to the vertical axis C and coupled to the rotating base 312 in a paired manner, The movable lifting assembly 313 can be a lifting cylinder, and the driving lifting and lowering unit 313 can be used to drive the light source 4 for continuous cultivation, and adjust the cultivation light source 4 to a preferred projection angle (as shown in FIG. 2).

Incidentally, in other embodiments, the mobile lifting assembly 313 can also include a track and a moving member (not shown) that is controlled to move on the track, thereby driving the cultivation light source 4 relative to the vertical axis C or The horizontal plane is inclined by a predetermined angle. It should be noted that the structural features of the mobile lifting assembly 313 are not limited to the above.

For example, the power mechanism 32 of the embodiment may include a base, a motor and a driving member (not shown), wherein the motor can be fixed by the mounting of the angle adjusting mechanism 31. The base frame 311 is slidably coupled between the motor output shaft and the rotating base 312 of the angle adjusting mechanism 31. Through the interlocking design of the above components and each other, when the motor is controlled by the control module 33, the output shaft can drive the driving member to rotate about the vertical axis C (clockwise or counterclockwise), and further through the rotating base. The seat 312 drives the cultivation light source 4 to rotate. It should be noted that the structural features of the power mechanism 32 are not limited to the above.

Please refer to FIG. 3, which is a system block diagram of a control module according to a first embodiment of the present invention. The plant cultivating system S of the present embodiment also needs to implement the technical means for dynamically adjusting the illumination angle by using the control module 33. The control module 33 includes a sensor 33a and a processor 33b electrically connected to each other.

Specifically, the sensor 33a may be a height sensor or other sensing element capable of sensing the absolute or relative height or Z variation of the plant during growth; it is worth noting that the embodiment The main function of the sensor 33a in the plant cultivation system S is to sense the vertical distance of the upper leaf of the plant relative to a fixed reference position (light source for cultivation); the processor 33b may be a personal computer or a notebook type The processor 33b of the present embodiment mainly includes a signal transceiving unit 331 electrically connected to each other, an operation unit 332, a database 333, and a control unit 334. .

Please refer to FIG. 4 to further illustrate the specific operation of each of the above component units. First, the sensor 33a is configured to detect the relative distance between the upper leaf of the plant and the cultivation light source to generate a vertical distance value (in centimeters). ). Next, the signal transceiving unit 331 acquires the relative distance value and transfers it to the arithmetic unit 332. Then, the operation unit 332 calculates a first light intensity value based on the vertical distance value and according to the light source and plant distance information and the initial light amount information stored in the database 333.

Thereafter, the operation unit 332 analyzes whether the first illumination intensity value meets the required illumination requirement of the plant (meaning that the upper leaf can be subjected to stable and suitable illumination intensity, and the lower leaf can also obtain sufficient illumination). If not, the operation unit 332 calculates a second light intensity value suitable for the current plant growth and how many angles the cultivation light source needs to tilt according to the adjusted light quantity information stored in the database 333 and the angle information to be adjusted ( Corresponding to the second illumination intensity value), and instructing the control unit 334 to determine the result.

Finally, the control unit 334 transmits the relevant control signal through the signal transceiving unit 331, thereby controlling the power mechanism 32 to actuate, and the power mechanism 32 drives the interlocking angle adjusting mechanism 31 to control the tilt angle of the cultivation light source 4 with respect to the vertical axis C. .

The plant cultivating system S of the present embodiment may further include at least one set of environmental conditioning modules 5 disposed in the cultivating space 11 and electrically connected to the processor 33b of the control module 33. A set of the environment adjustment module 5 may be a combination of an air conditioner, a moisture supply device, and a temperature and humidity sensor, and the present invention is not limited thereto; accordingly, the environment adjustment module 5 may be subjected to a processor. The control of 33b facilitates adjustment of the amount of water supply in the cultivation space 11 and the temperature and humidity of the environment, thereby creating an cultivating environment in the cultivation space 11 which is conducive to the growth of various plants.

[Second embodiment]

5 and FIG. 6 are schematic cross-sectional views showing a plant growing system according to a second embodiment of the present invention. The plant cultivation system S of the present embodiment is a plant cultivation system that does not use soil to grow plants; specifically, in the system, the plant roots have no soil requirement but are suspended and grown in a nutrient aerosol environment (ie, aerosol planting) ), this system is convenient for controlling the environment, which in turn enables plants to grow faster and better, and is suitable for organic vegetables grown in urban houses.

The plant cultivation system S mainly comprises a box body 1, a plurality of cultivation containers 2, a light intensity adjusting device 3, a cultivation light source 4, and an environment adjustment module 5. The present embodiment differs from the first embodiment in that the plant growing system S further includes a misting device 6 disposed in the cultivation space 11, and the cultivation container 2 is disposed on the misting device 6 by a support frame 12. Above, it is convenient to supply the nutrient mist to the inside of the cultivation container 2 to the mist device 6.

The misting device 6 of the present embodiment includes a mist generator 61, a main conveying pipe 62 and a plurality of branch pipes 63. The mist eliminator 61 includes a liquid storage tank 611, a pressurizing unit 612 and a plurality of nozzles 613. The liquid storage tank 611 stores a nutrient solution mixed with water and oxygen, and the pressurizing unit 612 is disposed in the liquid storage tank. On one side of the 613, the pressurizing unit 612 is connected to one end of the shunt tubes 63 via the main duct 62, and the other ends of the shunt tubes 63 are communicated to the inside of the cultivation containers 2 via the nozzles 613, respectively. According to this, when the mist eliminator 61 is in operation, the liquid storage tank 611 can be pressurized via the pressurizing unit 612, so that The nutrient solution is transported to each of the shunt tubes 63 along the main duct 62, and then a nutrient mist is generated at each of the nozzles 613 to achieve the purpose of fogging in the cultivation container 2.

Similarly, the plant breeding system S can also control the light intensity of the plant or crop through the change of the projection angle of the light source, so that the upper leaves can be stably and appropriately illuminated under the growth conditions of the plants or crops. Intensity and sufficient light for the lower leaves.

[Third embodiment]

Please refer to FIG. 7 and FIG. 8 , which are schematic cross-sectional views showing a plant breeding system according to a third embodiment of the present invention. The plant cultivation system S of the present embodiment is another plant cultivation system that does not use soil-planted plants; specifically, in the system, the plant roots have no soil requirement but are suspended and grown in the culture solution (ie, hydroponic cultivation), This system is convenient for controlling the environment, which in turn enables plants to grow faster and better, and is suitable for organic vegetables grown in urban houses.

This embodiment differs from the first and second embodiments in that, when the plant growing system S is in use, the cultivation space 11 at the bottom of the tank 1 is provided for containing the culture liquid, and a floating plant for carrying the plants is disposed in the tank 1. The tray 13 is made of styrofoam or foam, and has a plurality of positioning holes (not shown) for positioning the plant, and an aeration device 7 is further disposed on the box 1, the aeration The device 7 can inject air into the culture solution through the bottom of the tank 1 for absorption by the roots of the plants.

Similarly, the plant breeding system S can also control the light intensity of the plant or crop through the change of the projection angle of the light source, so that the upper leaves can be stably and appropriately illuminated under the growth conditions of the plants or crops. Intensity and sufficient light for the lower leaves.

The above is only an embodiment of the present invention, and is not intended to limit the scope of the invention. It is within the scope of the patent protection of the present invention to make any substitutions and modifications of the modifications made by those skilled in the art without departing from the spirit and scope of the invention.

S‧‧‧Plant Cultivation System

1‧‧‧ cabinet

11‧‧‧Cultivate space

2‧‧‧Cultivation container

3‧‧‧Light intensity adjustment device

31‧‧‧ Angle adjustment mechanism

311‧‧‧Fixed pedestal

312‧‧‧ Rotating base

313‧‧‧Mobile lifting components

32‧‧‧Power Agency

33a‧‧‧Sensor

4‧‧‧Cultivating light source

5‧‧‧Environmental adjustment module

C‧‧‧vertical axis

H‧‧‧Vertical distance

Claims (10)

A plant cultivation system comprising: a box body having a cultivation space; at least one cultivation container disposed in the cultivation space for planting at least one plant; a light intensity adjustment device comprising: an angle adjustment mechanism, setting In the cultivation space and above the cultivation container; a power mechanism connected to the angle adjustment mechanism as a power source thereof; and a processor and a sensor, the sensor The processor is disposed in the cultivating space and electrically connected to the processor, the processor is further electrically connected to the power mechanism; a cultivation light source is connected to the angle adjusting mechanism; and wherein the sensing The device can detect a vertical distance between the cultivation light source and the upper leaf of the plant, and the processor can cause the power mechanism to drive the angle adjustment mechanism to adjust the cultivation according to the vertical distance The angle of inclination of the light source relative to a horizontal plane. The plant cultivation system according to claim 1, further comprising a fogging device, the fogging device comprising a mist generator, a main conveying pipe and at least one shunt tube, wherein the cultivation container is disposed on the support frame by a support frame Above the misting device, the mist generator is in communication with at least one of the cultivation containers via the main conveying pipe and at least one of the distributing pipes. The plant cultivation system according to claim 2, wherein the mist generator comprises a liquid storage tank, a pressurizing unit and at least one nozzle, and the pressurizing unit is disposed at one side of the liquid storage tank, The pressurizing unit communicates with one end of at least one of the shunt tubes via the main conveying pipe, and the other end of at least one of the shunt pipes communicates with at least one inside of the cultivation container via at least one of the nozzles. The plant cultivation system according to claim 1, further comprising at least one set of environmental adjustment modules, wherein the environment adjustment module is disposed in the cultivation space and electrically connected to the processor. The plant cultivation system according to claim 4, wherein at least one of the environmental adjustment modules comprises a temperature sensor, a humidity sensor, an air conditioner, and a moisture supply device. A method for controlling the intensity of a plant growth light source is applicable to at least one plant in a cultivation space, and the method for controlling the intensity of the plant growth light source comprises the following steps: providing a cultivation light source, and adjusting the cultivation light source by an angle The mechanism is disposed above the at least one of the plants; sensing by a sensor to generate a vertical distance value of the upper leaf of the plant relative to the cultivation light source; and the vertical distance via a processor Controlling a power mechanism to actuate the power mechanism to drive the angle adjustment mechanism to adjust an inclination angle of the cultivation light source with respect to a horizontal plane. The method for controlling the intensity of a plant growth light source according to claim 6, wherein the sensor is a height sensor, and the processor is a personal computer, a notebook computer, an industrial computer or a processor. The method for controlling the intensity of a plant growth light source according to claim 6, wherein the processor comprises an arithmetic unit and a control unit electrically connected to each other, and controls a dynamic mechanism according to the vertical distance via a processor. And the step of: further comprising: obtaining, by an operation unit, a corresponding first light intensity value according to the vertical distance value; analyzing, by the operation unit, determining whether the first light intensity value meets the a growth requirement of the plant; if not, the computing unit calculates a second light intensity value that meets the growth requirement of the plant, and calculates the tilt angle according to the second light intensity value And the control unit controls the actuation of a power mechanism according to the calculation result of the operation unit, and causes the power mechanism to drive the angle adjustment mechanism to adjust the inclination angle of the cultivation light source. The method for controlling the intensity of a plant growth light source according to claim 8, wherein the processor further comprises a database electrically connected to the operation unit and the control unit, wherein the database stores a light source and a plant. The distance information, the initial light quantity information, the adjusted light quantity information, and the angle information to be adjusted, and in the step of obtaining a corresponding first light intensity value according to the vertical distance value via an operation unit, the operation unit is based on The light source and the plant distance information and the initial light quantity information are analyzed to obtain the first light intensity value. The method for controlling the intensity of a plant growth light source according to claim 9, wherein in the step of calculating, by the operation unit, a second illumination intensity value that meets a growth requirement of the plant, the operation unit is adjusted according to the The back light quantity information and the angle information to be adjusted are analyzed to calculate the second light intensity value and the tilt angle.