KR20170096244A - Wavelength and PPFD Control System of LED Lighting for Plant Growth - Google Patents

Abstract

The present invention relates to a system for controlling the wavelength intensity and the amount of light of a light emitting diode (LED) lamp for plant growth, which comprises: an LED bar type lamp formed with mixed light of a W wavelength of white light used as an auxiliary light source for plant growth, an A wavelength of red 660 nm for photosynthesis of a plant, and a B wavelength of blue 460 nm; a wavelength and light amount adjusting device having a white wavelength adjusting variable resistor, and A and B wavelength adjusting variable resistors for adjusting wavelength and the amount of light of the LED bar type lamp; an LED switching mode power supply (SMPS) having a constant voltage circuit for preventing wave and noise from being generated to supply stable DC power to the LED bar type lamp; a U controller for variably adjusting the wavelength and the amount of light of the LED bar type lamp to be controlled, controlling an on and off switch of the LED SMPS, and simultaneously or individually and automatically controlling the white wavelength adjusting variable resistor, and the A and B wavelength adjusting variable resistors by the wavelength and light amount adjusting device using a timer and a plant growth program; and a monitor driven by receiving a control command of the U controller, and displaying a wavelength graph and a light amount value for the LED bar type lamp. As a result, the wavelength and the amount of light for the LED bar type lamp can be variably adjusted and confirmed, thereby performing the photosynthesis with not limited to the specific plant growth, and having a unique effect utilized as a material for a photosynthesis research of the growth of various plants using an LED lamp.

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a wavelength control system and a control method thereof,

The present invention relates to a LED lighting control system for vegetable plants, and more particularly, it relates to a plant control system capable of variably controlling the wavelength intensity and the light intensity (PPFD) level of a plant growth LED from 1 to 100% The present invention relates to a wavelength intensity control system and a light intensity control system of a plant growing LED lighting lamp, which is utilized as a plant growth research equipment using an LED lighting lamp.

Recently, demand for LED bulb type and LED bar type lighting fixture replacing general bulb or incandescent bulb has been greatly increased in order to promote the growth of plants in the vinyl house.

In particular, the LED bar type lighting fixture has the advantage of providing a constant amount of light over a large area at a distance closer to the crop than the LED bulb type, and is mainly used in closed type and vertical plant factories and plant cultivation shelves.

LED Bar type lighting fixture uses mixed light of Blue 460nm and Red 660nm optimized for plant photosynthesis effect. The most effective wavelengths for leafy vegetables are Red 70% and Blue 30%. Effective wavelengths for seedlings, fruit and vegetable crops and general crops are known by research institutes to be blended in a ratio of Red 60% to Blue 40%.

Referring to FIGS. 1 and 2, it is impossible to exclude some questions about the 460 nm and 660 nm photosynthetic wavelength ranges for plant growth in plant growth using actual LED lighting. The reason is that simple leafy vegetables have already been tested for rapid growth, but many botanists and researchers have doubts about whether leaves are too thin or not expressed. Of course, if the light quantity is insufficient, the above phenomenon naturally occurs. However, with respect to the specificity of the wavelength band, it is possible to limit the wavelength range of only two narrow ranges (A and B) A question is raised in the line.

2, it is necessary to satisfy only the maximum wavelength range of photosynthesis and chlorophyll, which requires the overall wavelength range, requires a maximum amount of light in a specific region, and requires only a minimum wavelength region in the other region It should not be judged.

In other words, as shown in the chart of Fig. 1, a UV-A or near UV zone zone and an ultraviolet zone zone are required. In the infrared region, it can be said that it is a special growth in the chart of FIG. 1, but it has been reported that it has a considerable influence on flowering control, coloring and sugar control, thickening of leaves in UV band, and immunity in UV-B proximity zone . In addition, photosynthetic and chlorophyll-related graphs show that photosynthesis and chlorophyll activity are present in the ultraviolet wavelength range beyond visible wavelength beyond the near UV wavelength.

As a result, it is possible to use the artificial light source as an artificial light source to assist natural light, but it is inadequate as a direct light source.

On the other hand, in the plant cultivation apparatus using the upper and lower growth-promoting lamps of Korean Patent Publication No. 10-1414473 (Apr. 26, 2014), various kinds of crops can be effectively cultivated by irradiating growth promoting light having different properties to leaves, stems and roots And 10-1229389 (2013.01.29.), The LED pulse lighting system for controlling the plant growth has developed a pulse lamp lighting device using an LED lamp and used it as a control for growing the crop, A system has been developed which can drastically reduce the power consumption in the field, and the LED light source device for the plant of No. 10-1019736 (Feb. 25, 2011) has a plurality of red LEDs arranged on both outer sides of the PCB The red LED, the blue LED and the white LED are arranged at regular intervals in the center line of the PCB, Key is one or more of the light source unit; And a power supply unit for supplying power to the unit light source unit, wherein the light irradiated from the multi-color LED can be irradiated to the cultured plant at a predetermined ratio.

However, all of the above-mentioned patent technologies are artificial light sources for supporting natural light because they are fixed and unable to adjust wavelength intensity and light quantity (PPFD) according to plant growth variably, so that the above-mentioned problems are still not solved.

Therefore, in the present invention, the wavelength intensity and the quantity of light (PPFD) are very important parameters in the LED lighting apparatus for the vegetable plant, and by fixing the wavelength and the quantity of light, We propose a wavelength control system with variable wavelength control for LED lighting.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an apparatus and a method for adjusting a wavelength and an amount of light, which can variably control a wavelength and an amount of light, U controller and monitor, the user can control the wavelength (nm) and the light amount (PPFD) required for the photosynthesis action due to the growth of the plant, so that it can be applied to various plants not limited to specific plants, Provides a wavelength intensity control and light intensity control system of plant growth LED lighting which can be utilized as plant growth research equipment.

According to an aspect of the present invention for achieving the above object, there is provided a photovoltaic apparatus comprising: a mixed light emitting a W wavelength of a white light used as a plant growth assistant light source, a B wavelength of 660 nm, An LED bar type illumination lamp apparatus 100 comprising: A white wavelength tunable variable resistor 210 for adjusting the wavelength (nm) and a light quantity PPFD of the LED bar type luminaire and an A wavelength tunable variable resistor 220 and a B wavelength tunable variable resistor 230 A wavelength and light amount adjustment device 200; An LED SMPS 300 having a constant voltage circuit for preventing a surge and noise from occurring to supply a stable DC power to the LED bar type illumination lamp apparatus; The wavelength (nm) and the light amount (PPFD) of the LED bar type lighting apparatus are variably controlled to control the ON / OFF switch of the LED SMPS, and the wavelength and light amount control apparatus are controlled by a timer and a plant growth program A U controller (400) for simultaneously or individually controlling the white wavelength tunable variable resistor, the A wavelength tunable variable resistor and the B wavelength tunable variable resistor; And a monitor (500) for displaying a wavelength (nm) graph and a light amount (PPFD) value of the LED bar type illuminating lamp apparatus driven by the control command of the U controller. And a light intensity control system.

According to another embodiment of the present invention, the wavelength and light amount control apparatus 200 may include a white wavelength variable resistor 210 that variably adjusts the wavelength of white light used as a plant growth assistant light source, A red wavelength variable resistor 220 for variably controlling the intensity of a red wavelength of 660 nm and a blue wavelength 460 nm for taking charge of the photosynthesis action of the plant growth to control the light intensity of the B wavelength And an adjustable variable resistor 230 is provided.

According to another embodiment of the present invention, the variable resistors 210, 220 and 230 of the wavelength and light amount control device 200 are selected from a slide type or a rotary type.

According to another embodiment of the present invention, the U-controller 400 may control the flow rate of the DC light supplied to the LED bar type illuminating lamp by the programmed plant growth photosynthesis operation parameters stored in the RAM provided in the U- (DC) power supply to control the blue light and the red light according to the ratio.

According to yet another embodiment of the present invention, the monitor 500 may further include: a Blue light 1: Red light 3 ratio and Blue light 3: Red light 5 ratio, All (Nm) graph and light quantity (PPFD) value according to ON switching of red illumination lamp and all blue illumination lamp.

The wavelength intensity and light amount control system of the plant growth LED illumination light of the present invention is constituted by a wavelength and light amount adjustment device, a U controller and a monitor capable of variably controlling the intensity and the quantity of light for an LED bar type illumination light,

(1) It can be adjusted by checking the wavelength (nm) and light quantity (PPFD) necessary for the photosynthesis action of the plant growth by the user, so that it can be applied to various plants not limited to specific plants. Available.

(2) In the prior art, it is not possible to variably adjust the intensity (nm) and the light amount (PPFD) of the wavelength (nm) with respect to the LED bar type illumination light, It is expected that the market will be greatly expanded in the future by contributing greatly to plant growth such as growth period and flowering period in plant development period by solving the problem that is limited to specific plant growth or can not be used for research at all since it is already fixed. .

FIGS. 1 and 2 are graphs and graphs showing wavelength and action effects according to plant growth photosynthesis
FIG. 3 is a block diagram of a technical configuration of a wavelength intensity control and light amount control system of a plant growing LED illumination light according to a preferred embodiment of the present invention
FIG. 4 is a view for schematically explaining a 460, 660 nm wavelength LED illumination system for promoting growth of plants for a wavelength intensity control and light intensity control system of a plant growth LED illumination light according to a preferred embodiment of the present invention.
5 to 10 are wavelength graphs showing experimental results of the wavelengths of red and blue wavelengths (nm) for the wavelength intensity control and the light intensity control system of the plant growth LED illumination lamp according to the preferred embodiment of the present invention
FIG. 11 is a photograph showing the result of detection of the intensity of light (PPFD) by the ratio of red and blue wavelengths (nm) to the wavelength intensity and the light amount control system of the plant growth LED illumination light according to the preferred embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wavelength intensity and light amount control system of a plant growth LED illumination lamp according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, in adding reference numerals to the constituent elements of the drawings, it is to be noted that the same constituent elements are denoted by the same reference symbols as possible even if they are displayed on different drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

3 to 11, a technical solution of the wavelength intensity control and light amount control system of the plant growth LED illumination lamp according to the embodiment of the present invention is mainly composed of an LED bar type illumination lamp 100, 200, an LED SMPS (LED Switching Mode Power Supply) 300, a U controller 400, and a monitor 500.

3, the LED bar type illuminating lamp 100 is an LED illuminating means for providing a constant amount of light over a large area at a distance close to a plant, and is a white light used as a plant growth assistant light source. And a mixture of light having a red wavelength of 660 nm and a blue wavelength of 460 nm, which are optimized for the W wavelength and the plant photosynthesis effect.

Here, in the embodiment of the present invention, the object of the plant is limited to the A wavelength 660 nm and the B wavelength Blue 460 nm, but the present invention is not limited to the wavelength and light amount control apparatus 200 and the U controller 400 It is possible to control the intensity (nm) and the light amount (PPFD) of the A and B wavelengths variously according to the growth characteristics of the plants, since the wavelength and the light amount can be variably controlled.

Referring to FIG. 3, the wavelength and light amount control apparatus 200 includes a white wavelength tuning variable resistor 210 as a means for adjusting the wavelength and light quantity of the LED bar type luminaire 100, A wavelength-tunable variable resistor 220 and a B wavelength-tunable variable resistor 230.

The white wavelength controlling variable resistor 210 is a means for controlling the wavelength and amount of white light used as a plant growth assistant light source and includes an A wavelength adjusting variable resistor 220 and a B wavelength adjusting variable resistor 230 ) Is a means to control the Red 660nm and Blue 460nm wavelengths most effective for the light-harvesting of plants, ie, plants, through variable resistors.

In other words, the white wavelength variable resistor 210 variably adjusts the intensity of the wavelength of white light used as a plant growth assistant light source, and the A wavelength variable resistor 220 is a variable resistor, And the B wavelength control variable resistor 230 controls the intensity of the blue 460 nm wavelength to control the photosynthetic action 30% of the egg (plant) .

The resistive elements according to the embodiment of the present invention can be manually adjusted by the user and can be automatically adjusted by the U controller 400. The method of automatically controlling by the U controller 400 means that it can be controlled by the plant growth program and will be described in detail in the U controller described later.

The variable resistors 210, 220, and 230 of the wavelength and light amount controller 200 may be of a sliding type, a rotary type, or the like. The variable resistors 210, 220, and 230 may be applicable to a user (or a consumer) or a researcher.

3, the LED SMPS 300 is a DC stabilized power supply for supplying a clean and stable DC power to the LED bar type illumination lamp 100, 300 have a constant voltage circuit or the like so that surge and noise can not be generated.

Here, the SMPS maximizes the efficiency by increasing the ON / OFF switching frequency with a fast cycle, and can produce a large-capacity power supply with a small size, a light weight, and a large input voltage range. However, Surge) and noise (Noise) occurs, the ON / OFF time of the DC voltage to be output must be set appropriately. Such generation of waves or noise may adversely affect the growth of plants and shorten the lifetime of LED devices.

3, the U controller 400 controls the entire system, and includes control means (not shown) for variably controlling the wavelength (nm) and the light amount PPFD of the LED bar type illuminating lamp 100, Off switch of the LED SMPS 300 is controlled and the wavelength and light amount regulator 200 is controlled by a timer and a plant growth program so that a white wavelength tunable variable resistor 210 and an A wavelength tunable variable resistor 220 ) And the B wavelength-tunable variable resistor 230 simultaneously or individually.

1 and 2, the U controller 400 can preset and store the programmed parameters in consideration of the photosynthesis effect of each wavelength (nm) of ultraviolet rays and visible light rays due to growth of plants have. The parameters are stored in a ROM (not shown) or a RAM (not shown) provided in the U controller 400. In the embodiment of the present invention, various conditions such as the growth characteristics of the plants and the environment of the cultivation area It is preferable to store it in the RAM so as to be variably controllable.

The U controller 400 controls the LED SMPS 300 through a timer (not shown) provided in the U controller to supply a direct current (DC) voltage to the LED bar type illuminating lamp 100, Power can be interrupted.

In addition, the U controller 400 can intercept a DC power supplied to the LED bar type lighting apparatus 100 according to the programmed parameters stored in the RAM.

In addition, the U-controller 400 may control the flow rate of the DC light supplied to the LED bar type illuminating lamp 100 by the programmed plant growth photosynthesis operation parameters (wavelength and light quantity) stored in the RAM provided in the U- DC) power can be controlled to control Blue light and Red light by ratio.

3 and 5 to 11, the U-controller 400 is provided with a blue light 1, a red light 3 ratio, a blue light 3, a red light 5 ratio, an all red light, ON) and the wavelength (nm) and the light amount (PPFD) according to switching can be controlled.

FIG. 5 shows a graph of the experimental wavelength (nm) according to the ratio of 1: Red light 3 of Blue illumination, FIG. 6 shows the ratio of 3: Red illumination 5 of Blue illumination, Wavelength (nm) graph.

FIG. 8 shows an all-red illumination lamp, FIG. 9 shows an All Blue illumination, and FIG. 10 shows an experiment wavelength (nm) graph according to ON switching of All Blue + All Red illumination.

FIG. 11 is a graph showing the relationship between the wavelength (nm) of the Blue light 1: Red light 3 ratio and Blue light 3: Red light 5 ratio, BR 1: 3 + BR 3: 5 light, All Red light, + All Red It shows the actual photograph which monitors the value of each light quantity (PPFD) according to ON switching of the lamp.

Therefore, the wavelength intensity and the light amount control system of the plant growth LED illumination light according to the preferred embodiment of the present invention can detect the wavelength (nm) and the light intensity (nm) of the LED bar type illumination apparatus 100 PPFD) is substantially variable.

3, the monitor 500 is a means for monitoring a wavelength (nm) and a light amount (PPFD) with respect to the LED bar type luminaire 100, (2) Red light 3 ratio and Blue light 3: Red light 5 ratio, All Red light, All Blue The wavelength (nm) due to the switching of the lamps (nm) by the controller (400) (PPFD) value.

Accordingly, the user (or the consumer) or the researcher can identify the most effective value for the photosynthesis action of the plant through the wavelength (nm) graph and the light amount (PPFD) value displayed on the monitor 500.

The present invention is not only capable of variably controlling the intensity (nm) and the quantity of light (PPFD) of the wavelength (nm) with respect to the LED bar type luminaire 100 in the prior art, ) Value is already fixed, it is characteristic that it is limited to specific plant growth or improves the problem that can not be used for research at all.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: LED bar type illumination lamp apparatus 200: wavelength and light amount adjustment apparatus
210: White wavelength control variable resistor 220: A wavelength control variable resistor
230: B wavelength adjustable variable resistor 300: LED SMPS
400: U Controller 500: Monitor

Claims (5)

An LED bar type illumination lamp apparatus 100 comprising a W wavelength of white light used as a plant growth assistant light source and a mixed light emitting B wavelength of Red 660 nm and Blue 460 nm for photosynthesis of plants;
A white wavelength variable resistor 210 for adjusting the intensity of a wavelength (nm) and a light amount PPFD of the LED bar type luminaire and an A wavelength adjusting variable resistor 220 and a B wavelength adjusting variable resistor 230, A wavelength and a light amount adjusting device 200 having the same;
An LED SMPS 300 having a constant voltage circuit for preventing a surge and noise from occurring to supply a stable DC power to the LED bar type illumination lamp apparatus;
The wavelength (nm) and the light amount (PPFD) of the LED bar type lighting apparatus are variably controlled to control the ON / OFF switch of the LED SMPS, and the wavelength and light amount control apparatus are controlled by a timer and a plant growth program A U controller (400) for simultaneously or individually controlling the white wavelength tunable variable resistor, the A wavelength tunable variable resistor and the B wavelength tunable variable resistor;
And a monitor (500) for displaying a wavelength (nm) graph and a light amount (PPFD) value of the LED bar type illuminating lamp apparatus driven by the control command of the U controller. And intensity control system.
The method according to claim 1,
The wavelength and light amount control apparatus 200 includes a W wavelength variable resistor 210 for variably adjusting the intensity of a white light used as a plant growth assistant light source,
An A wavelength-tunable variable resistor 220 for variably controlling the intensity of the red 660 nm wavelength for taking charge of 70% of the photosynthetic action of the plant growth, and
And a B wavelength tunable variable resistor (230) for variably controlling the intensity of the blue 460 nm wavelength for 30% of the photosynthetic action of the plant growth.
The method according to claim 1,
Wherein the variable resistors (210, 220, 230) of the wavelength and light amount controller (200) are selected from a slide type or a rotary type.
The method according to claim 1,
The U controller 400 interrupts a DC power supplied to the LED bar type lighting fixture according to a programmed plant growth photosynthesis operation parameter stored in a RAM provided in the U controller, Red light is controllable by ratio. Wavelength intensity and light quantity control system of plant growing LED light.
The method according to claim 1,
The monitor 500 is provided with a blue light 1: Red light 3 ratio and Blue light 3: Red light 5 ratio, All Red light, All Blue light, which is controlled by the wavelength and light amount control device and the U controller (Nm) graph and a light quantity (PPFD) value according to the switching.

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