KR100934881B1 - The apparatus for cultivating by using of led - Google Patents

Abstract

PURPOSE: A plant cultivating device using variable LED is provided to change lights in a wavelength range required according to each period of plants by introducing a light demand automatic control unit, and to increase the yield of the plants. CONSTITUTION: A plant cultivating device using variable LED includes a light demand automatic control unit. The light demand automatic control unit comprises a sensor part, a data input part(120), a MICOM part(130), an output control circuit part, and a wavelength classification control part. The sensor part includes an optical sensor measuring the intensity of the sunlight and a temperature sensor measuring the indoor temperature. The MICOM part measures the optical irradiation amount. The wavelength classification control part transmits a signal of the specific wavelength range with a variable ELD light.

Description

Plant cultivation apparatus using variable LED {THE APPARATUS FOR CULTIVATING BY USING OF LED}

The present invention in accordance with the germination, flowering and growth periods according to the type of cultivation crops in order to create an optimal environment for the growth and cultivation of plants, in the specific wavelength range required for each period, that is, in the infrared, visible and ultraviolet wavelength range Introduced automatic control unit for light demand using variable LED lighting to change the light, measure the intensity and temperature of sunlight reflected by the plastic house, and measure the reference light demand required for each period of cultivated crop through control by microcomputer By calculating the amount of light irradiation, and by varying the light irradiated from the variable LED light in the wavelength range required for each period, it is possible to save heating costs and electricity costs, germination according to the type of crops for growing greenhouses , Adjustable LED lighting, which can control the flowering and growth timing The present invention relates to a plant cultivation apparatus using light.

In general, house cultivation includes hydroponic cultivation or flower cultivation, which is a device for house cultivation, a plurality of cultivation beds regularly arranged in a horizontal direction on a floor in a plastic house, and vinyl Heaters, air conditioners and the like are used to maintain the temperature in the house at the set temperature.

In particular, each of the plurality of cultivation beds are substantially grown crops or flowers for cultivation, and a plurality of light sources are installed on the ceiling of the vinyl house so that the crops can photosynthesize by light energy even in the dark night.

However, the conventional apparatus for growing the house has the following problems.

In other words, the plural cultivation beds are evenly distributed in the horizontal direction to the floor throughout the greenhouse, so in order to maintain the temperature of the vinyl house at the set temperature on a cloudy day or a low temperature, the entire vinyl house needs to be heated. There is a problem that a lot of fuel and power consumption is generated.

In addition, since a plurality of cultivation beds are evenly distributed in the horizontal direction with respect to the floor throughout the plastic house, in order to photosynthesize crops on a cloudy day, light energy must be supplied to the entire plastic house, so power consumption is unnecessary. There was a problem losing.

In order to solve this problem, in Korean Patent Registration No. 10-0879711, the LED to form a wavelength of 640nm ~ 675nm; and the LED to generate a wavelength of 425nm ~ 455nm; 9: 1, 8: 2, 7: 3 And semiconductor light emitting diodes, which emit light by mixing and arranging a plurality of LEDs at any one of 6: 4,

This is due to the problem that the wavelength range light source required for germination, flowering and growth time according to the types of crops for growing greenhouses cannot be adequately supplied.

In addition, the LED lighting device that emits light to the plant is turned on irrespective of the solar radiation emitted by the plastic house, there is a problem that unnecessary heating costs and power consumption occurs.

The present invention has been made to solve the above problems, in order to create an optimal environment for the growth and cultivation of plants according to the types of crops for cultivation, in accordance with the timing of germination, flowering and growth specific requirements required for each period Introduced the automatic control unit for optical demand using variable LED lighting that varies in the wavelength range, ie infrared, visible and ultraviolet wavelength ranges.

After measuring the intensity and temperature of the sunlight reflected by the vinyl house, the control is controlled by the microcomputer to measure the standard light demand required for each period of the cultivated crop, and the light irradiation amount is calculated. By varying the light emitted from the illumination to the wavelength range required for each period

Providing a plant cultivation device using a variable LED lighting that can reduce heating costs and electricity costs, and can control germination, flowering, and growth timing according to the type of crops for growing greenhouses, thereby increasing the yield. The purpose.

Plant cultivation apparatus using a variable LED lighting according to the present invention is a device for cultivating plants by emitting an LED light source to the greenhouse cultivation crops, the plant cultivation apparatus after measuring the intensity, temperature of the sunlight shines into the vinyl house In addition, the control system includes a light demand automatic control unit for controlling and irradiating the light output of the variable LED light that varies in the infrared, visible and ultraviolet wavelength ranges according to the reference light requirements of the greenhouse crops.

And the light demand automatic control unit according to the present invention is composed of a light sensor for measuring the intensity of sunlight reflected by the plastic house, and a sensor unit consisting of a temperature sensor for measuring the indoor temperature,

 The RS232 communication port is configured with a data input unit for inputting reference data values for the greenhouse light cultivation crop, the growth temperature and humidity of the cultivation crop through the keypad.

After calculating the light irradiation amount measured from the sensor unit to the reference light requirement of the greenhouse for cultivation of the greenhouse, the microcomputer unit is configured to control the light output of the variable type LED lighting to be irradiated for each wavelength band according to the calculated result.

By adjusting the on / off ratio of the switching element according to the output control signal of the microcomputer part, the width of the Vin pulse applied to the filter is increased to increase the final output applied to the variable LED lighting, or the width of the Vin pulse is narrowed to reduce the width of the variable LED. The output control circuit unit is configured to adjust the DC voltage to lower the final output applied to the light,

According to the specific infrared, visible and ultraviolet wavelength signals of the microcomputer unit, DC voltage is input from the output control circuit unit, and any one of infrared, red, visible, super red, visible, blue, visible, green, visible, yellow, and It is characterized in that it comprises a wavelength classification control unit for controlling to be selected to transmit a signal of a specific wavelength range selected by the variable type LED lighting.

In addition, the output control circuit according to the present invention is connected to the switching transistor is turned on / off according to the PWM output control signal of the microcomputer unit, when the switching transistor is turned on / off is connected to the step-down transformer for boosting and outputting the Vin pulse, Rectifying the voltage output from the step-down transformer through the diode, characterized in that it comprises a DC-DC converter connected to the AC-DC rectifier for outputting the final DC voltage applied to the variable LED lighting to the wavelength division controller.

On the other hand, the plant cultivation method using a variable LED lighting according to the present invention comprises the steps of (a) measuring the intensity of sunlight shining into the plastic house through the light sensor of the sensor unit;

(b) measuring the temperature inside the plastic house through a temperature sensor in the sensor unit;

(c) inputting, via a keypad, reference data values relating to the reference light demand for the greenhouse crops, growth temperature and humidity of the crops;

(d) calculating the light irradiation amount measured from the sensor unit to the reference light demand of the crop for cultivating the greenhouse in the microcomputer unit;

(e) sending a PWM output control signal to the DC-DC converter to control the light output of the variable LED lighting according to the result calculated by the light request amount setting unit in the microcomputer unit; And

(f) When the microcomputer sends the specific infrared, visible and ultraviolet wavelength signals to the wavelength division control unit, the wavelength division control unit receives DC voltage from the output control circuit unit and changes the LED light according to the specified infrared, visible and ultraviolet wavelength signals. By the step of emitting light to the greenhouse crops for cultivation.

Plant cultivation apparatus and cultivation method using a variable LED according to the present invention

In order to create an optimal environment for plant growth and cultivation, the variable type varies according to the germination, flowering and growth periods depending on the type of cultivation crops, and in specific wavelength bands required for each period, i.e., infrared, visible and ultraviolet wavelength ranges. Introduced the optical demand automatic control unit using LED lighting

After measuring the intensity and temperature of the sunlight reflected by the vinyl house, the control is controlled by the microcomputer to measure the standard light demand required for each period of the cultivated crop, and the light irradiation amount is calculated. By varying the light emitted from the illumination to the wavelength range required for each period

It is possible to reduce heating costs and electricity costs, and to control germination, flowering, and growth timing according to the types of crops for growing greenhouses, thereby increasing the yield.

Hereinafter, a plant cultivation apparatus and a cultivation method using a variable LED lighting according to the present invention will be described with reference to the accompanying drawings.

First, the plant cultivation apparatus using the variable LED light of the present specification is configured by applying the central theory of crop photophysiology, and the plant is red light (660 nm) and super light by phytochrome, a photoreceptive protein. Detect changes in red light (730 nm).

That is, chlorophyll a absorbs red light (660 nm), chlorophyll b absorbs red light (450 nm), and the photoreceptor protein is present in an inactive form (Pr) and then converted into an active form (Pfr) by red light (Red). It induces plant responses such as cognition of sea length, seed germination, body migration of photosynthetic products, elongation, flowering and pigment expression, and is converted back into inactive form (Pr) form by Far-Red.

This is because plants recognize that the length of the sun grows in spring and summer and short in autumn as the season changes, and flowering along the season also has the ability to detect the length of the sun caused by phytochromes, a photoreceptor protein. to be.

In the present invention, after using the central theory of the photo-physiology, after measuring the intensity and temperature of the sunlight emitted to the plastic house through the control of the optical demand automatic control unit,

By calculating the amount of light irradiation measured to the standard light demand of the greenhouse crops for cultivation by the microcomputer control, and by controlling the light output of the variable-type LED lighting according to the calculated result, it is configured to irradiate by wavelength band,

Low-cost heating and electricity charges control the action of phytochrome, a mineral protein, for greenhouse crops such as leafy perilla, chrysanthemum, strawberries, melons, tomatoes, ginseng, vegetable seedlings, cucumbers, peppers, apples, pears, and peaches. It is characterized by improving the sugar content of fruit, regulating flowering, promoting growth.

Hereinafter, the effect of each wavelength on the plant according to the wavelength irradiated by the variable LED lighting will be described.

First of all, the infrared wavelength is controlled by the light demand automatic control unit, which promotes a special stretching effect on plants with a wavelength in the range of 780nm to 720nm for greenhouse crops.

Next, among the lights irradiated by the variable LED lighting, the wavelengths of the visible light such as red, ultra-red, yellow, green, and blue affect the plants. Let's look at the impact.

First, the red wavelength is used to control photosynthesis and control flowering by emitting red light of less than 520 nm to 620 nm in leaf perilla, chrysanthemum, strawberry, etc. among crops for growing greenhouses through the control of the light demand automatic control unit.

Second, the Ultra-Red wavelength emits super red light of less than 620nm ~ 720nm in the melon, tomato, and ginseng among the crops for growing greenhouses by controlling the light demand automatic control unit to increase the fruit water, sugar and saponin. Used to adjust.

Third, the blue wavelength is used to control the prevention of overgrowth by emitting blue light of less than 320nm to 420nm in vegetable seedlings of the greenhouse crops through the control of the light demand automatic control unit.

Fourth, the green wavelength is used to suppress the occurrence of mold by emitting green light of less than 420nm ~ 520nm to the cucumbers, peppers of the greenhouse for growing greenhouses through the control of the light demand automatic control unit.

Fifth, the yellow wavelength is used to control pests by emitting yellow light of less than 550 to 600 nm to apples, pears, and peaches in the greenhouse crops through the control of the light demand automatic control unit.

Finally, the ultraviolet wavelength of 400nm ~ 315nm purple light generally attracts the thickening of the leaves of plants, promotes the color development of the pigment and pests,

Wavelengths from 280nm to 120nm form the immune system in many synthesis processes, while sub-100nm wavelengths cause plants to wither rapidly.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view showing a plant cultivation apparatus of a variable LED lighting through the light demand automatic control unit according to the present invention, which is formed in a vinyl house body formed in a dome shape, or a long semicircle It consists of a plant cultivation apparatus (1).

The plant cultivation apparatus 1 according to the present invention measures the amount of insolation through the control of the optical demand automatic control unit 100, and the amount of the leaves perilla, chrysanthemum, strawberries, melons, tomatoes, ginseng, vegetable seedlings, cucumbers By irradiating crops for growing greenhouses such as peppers, apples, pears, peaches, etc., it provides an optimal light supply, and by irradiating light in the wavelength range necessary for germination, flowering, and growth time depending on the type of crop by variable LED lighting , By controlling the action of phytochrome, a photoreceptor protein, characterized in that it improves the sugar content of fruit, regulates flowering and promotes growth.

The light demand automatic control unit 100 measures the light intensity and temperature of the sunlight projected to the vinyl house, and then calculates the light irradiation amount measured to the reference light demand of the crop for cultivating the vinyl house through the control of the microcomputer, and the calculated According to the result, the light output of the variable type LED lighting is controlled and irradiated for each wavelength band. As shown in FIGS. 2 and 4, the sensor unit 110, the data input unit 120, the microcomputer unit 130, and the output are output. Control circuit section 140, wavelength classification control section 150, variable LED lighting (160).

The sensor unit 110 serves to measure the intensity and room temperature of sunlight reflected by the plastic house, which is composed of a light sensor 111, a temperature sensor 112,

The optical sensor 111 is a cadmium sulfide cell (CDS), which is a component attached to a metal bridge to a cadmium sulfide crystal formed by the combination of cadmium and sulfur. In a dark place without visible light, current does not flow like an insulator in the dark place. When it touches, it has the property that current flows well like a conductor, so it has a high resistance value in a dark place, and the internal resistance value of the light decreases as the light gets brighter.

In the optical sensor 111 according to the present invention, as shown in FIG. 3, an optical filter 111a for passing only 760 nm or more of light incident by sunlight is formed on the upper end of the frame in a cap shape, and a central side of the optical filter is provided. A concave lens portion 111e, which functions as a concave lens for focusing incident sunlight, is formed thereon, and a substrate 111d is formed on a bottom surface thereof, and a photodiode for sensing right / left direction of sunlight on the substrate ( 111c), a light blocking portion 111d serving as an outer casing is formed at the upper end of the right / left sensing photodiode,

In the optical sensor according to the present invention, the reaction current flows linearly by the sunlight intensity collected by the concave lens unit.

At this time, in the present invention, as shown in Figure 4, by configuring the sensing resistor R1 between the optical sensor and the microcomputer unit, by converting the reaction current flowing linearly according to the intensity of sunlight into a voltage through the sensing resistor R1 of the microcomputer Send to one side of input terminal.

The voltage converted through the sensing resistor R1 may be expressed as Equation 1 below.

Here, V denotes a voltage converted through the sensing resistor R1, Ir denotes a reaction current flowing linearly according to the intensity of sunlight, and R denotes the magnitude of the sensing resistance.

As shown in FIG. 11, the amount of solar radiation obtained through the sensing resistor R1 is integrated in the microcomputer to obtain a solar irradiation dose.

In addition, the temperature sensor 112 is installed on one side of the support frame or the variable LED lighting inside the plastic house, and measures the temperature inside the plastic house,

It is composed of one of the platinum resistance temperature sensor, thermistor, and semiconductor temperature sensor.

Platinum resistance temperature sensor is based on the principle that the resistance value of platinum is changed according to the temperature. It has high accuracy and is used as a standard temperature sensor in the area of -260 ~ 630 ℃.

Thermistors are made by sintering metal oxides, and use resistance characteristics that change with temperature. Thermistors are divided into negative characteristics (NTC) thermistors and positive characteristics (PTC) thermistors.

In addition, the semiconductor temperature sensor uses this characteristic as a temperature sensor because the voltage between the diode and the base-emitter when a constant current flows between the transistor and the collector-emitter of the transistor changes linearly with temperature. The temperature inside the plastic house is input to one side of the input terminal of the microcomputer unit.

The data input unit 120 inputs, through the RS232 communication port, a reference data value for a reference light requirement, growth temperature and humidity of a cultivated crop through a keypad.

The microcomputer unit 130 calculates the light irradiation amount measured from the sensor unit to the reference light demand of the crop for cultivating the greenhouse, and then controls the light output of the variable type LED lighting to be irradiated for each wavelength band according to the calculated result. Do it.

The microcomputer unit according to the present invention is composed of a PIC one chip microcomputer PIC16C711.

It is connected to the optical sensor through sensing resistor R1 on one side of input terminal, temperature sensor on the other side of input terminal, DC-DC converter on one side of output terminal to output PWM output control signal, and power on one side of input terminal. It is connected to the output terminal of LED plant cultivation lamp through sensing resistor R2, and the intensity of load power according to the operation of single color LED module or full color LED module is inputted, and the wavelength classification controller is connected to the other side of output terminal. According to the type of crop and germination, flowering and growth time, it is configured to output the visible light wavelength band 1: 1.

And the microcomputer unit 130 is configured with a light demand amount setting unit for calculating the light irradiation amount measured from the sensor unit to the reference light demand of the crop for cultivating the greenhouse,

Here, light demand (Ld) refers to the amount of light to be irradiated by LED type plant cultivation.

The light demand can be expressed as Equation 2 below.

Where A is a constant applied to each greenhouse type crop for the temperature value measured by the temperature sensor, and Lset represents a reference light demand of the crop key inputted using a data input unit according to the greenhouse crop type. .

And the solar irradiation amount shows the data which integrated the solar radiation amount through the optical sensor.

In addition, the output control circuit unit 140 adjusts the on / off ratio of the switching element according to the output control signal of the microcomputer unit to widen the width of the Vin pulse applied to the filter to increase the final output applied to the variable LED lighting, or This is where the DC voltage is adjusted to narrow the width of the Vin pulse to lower the final output to the variable LED light, which consists of a DC-DC converter.

In addition, the DC-DC converter is connected to the switching transistors S3 and S4 which are turned on / off according to the PWM output control signal of the microcomputer, and when the switching transistors S3 and S4 are turned on / off, the output voltage is boosted by the Vin pulse. Step-down transformer (T1) is connected, the voltage output from the step-down transformer (T1) rectifies through the diode (D1, D2), AC- which outputs the final DC voltage applied to the variable LED lighting to the wavelength classification control unit. The DC rectifier is connected and configured.

The AC-DC rectifier serves to output a DC voltage according to a specific visible light wavelength such that only a specific visible light wavelength is transmitted through the wavelength division controller under the control of the microcomputer to control the voltage output from the step-down transformer T1.

The AC-DC rectifier charges the voltage output from the step-down transformer T1 through the capacitor C5, and sends only the current in which the charge is completed in the capacitor C5 to the current control capacitor C9.

The current control capacitor C9 is a non-polar element capable of flowing current in both directions, and is used to output a DC voltage according to a specific visible light wavelength such that only a specific visible light wavelength is transmitted through the wavelength division controller.

The value of the capacitor according to the present invention can be calculated by the following equation.

Here, Xc = resistance [reactance] of the capacitor,? = 3.14, f = frequency [Hz], and C = capacity [Farads] of the capacitor.

The current flowing in the capacitor can be calculated through the following equation (4).

Where rms = AC effective voltage, and Xc = resistance [reactance] of the capacitor.

In the present invention, by adjusting the capacity of the capacitor, the DC voltage can be adjusted to increase or decrease the final output applied to the variable-type LED lighting.

The wavelength classification control unit receives a DC voltage from an output control circuit unit according to a specific visible light wavelength signal of the microcomputer unit, and transmits a red light wavelength, a super red light wavelength, a blue light wavelength, a green light wavelength, a yellow light wavelength, an infrared ray, and an ultraviolet ray wavelength in the visible light wavelength range. It controls the selection of any one of them.

In addition, the variable type LED light 160 is located at a certain height in the greenhouse for growing crops, formed side by side in a line along the longitudinal direction, and serves to emit light by changing a specific infrared or visible or ultraviolet wavelength selected from the wavelength classification controller. .

The variable LED light 160 according to the present invention is configured to detect the power output during operation through the power sensing resistor 164, and transmit the load power according to the operation of the variable LED light 160 to the microcomputer.

That is, in the present invention, the variable LED light 160 configures the power sensing resistor 164 R2 between the microcomputer units, and powers the reaction current flowing linearly according to the strength of the load power according to the operation of the variable LED light 160. It is converted to voltage through the sensing resistor R2 and sent to one side of the input terminal of the microcomputer.

At this time, the microcomputer unit calculates the intensity of the load power according to the operation of the variable LED lighting 160 and the intensity of the DC voltage output from the DC-DC converter, and outputs the insufficient voltage as a PWM output control signal to the DC-DC converter. Let's do it.

The variable LED light 160 according to the present invention is formed of an LED fluorescent lamp structure 160a, as shown in Figures 6 and 7, or as shown in Figure 8, formed of an incandescent lamp-shaped structure (160b). Alternatively, or as shown in FIG. 9, it may be formed as a street lamp structure 160c.

In particular, the variable LED light 160 according to the present invention, as shown in Figure 6 and 7,

Made of the same size and the same shape as the fluorescent lamp, LED lamp socket 160a-1 is formed at both ends, and the diffusion cover 160a-2 having a cylindrical long rod structure is formed along the LED lamp socket. A single color LED module having a single wavelength on the front or the rear of the bidirectional LED power board is inserted into the bidirectional LED power board 160a-4 by sliding along the fitting groove 160a-3 formed at one side of the diffusion cover. 161 is formed, or a full color LED module 162 having a plurality of wavelengths is formed and connected.

And variable LED lighting 160 according to the present invention is a substrate is composed of a metal PCB substrate to prevent the heat generated in the LED,

 The metal PCB substrate 160 has an aluminum heat sink formed on the bottom layer, an insulation pad is formed on the top of the aluminum heat sink, a glass epoxy PCB (GE) is formed on the top of the insulation pad, and a chip LED is inserted into the GE PCB. It is formed.

It consists of a metal PCB with aluminum heat sinks and rubber insulating pads on the bottom of the existing PCB, which can extend the life of LEDs, which are weak in thermal characteristics, and prevent malfunction of the device due to heat.

Hereinafter, a plant cultivation method for a plastic house through the light demand automatic control unit according to the present invention will be described.

Suppose you are growing strawberries among green house crops.

As shown in Figure 12 plant cultivation method using a variable LED according to the present invention

(A) step (S100) of measuring the intensity of sunlight shining into the plastic house through the light sensor of the sensor unit

This converts the reaction current flowing linearly according to the intensity of sunlight into a voltage through the sensing resistor R1 and transmits it to one side of the input terminal of the microcomputer.

Subsequently, step (b) (S200) is a step of measuring a temperature inside the plastic house through a temperature sensor in the sensor unit.

Subsequently, step (c) (S300) inputs a reference data value about a reference light requirement, growth temperature of the cultivated crop, and humidity required for the greenhouse cultivated crop through the keypad through the data input unit.

Subsequently, in step (d), the microcomputer unit 130 calculates the light irradiation amount measured from the sensor unit to the reference light demand of the crop for cultivating the greenhouse house (S400).

As shown in FIG. 13, the solar light incident amount is measured through the optical sensor unit, and the solar radiation amount and the specific wavelength are integrated through Equation 1 (S100 to S110).

At this time, after calculating the light irradiation amount measured from the sensor unit to the reference light demand of the vinyl house cultivation crops through Equation 2 through the light requirement setting unit of the microcomputer unit, if the light requirement is required for the vinyl house cultivation crops LED cultivation plant, etc. Lights (S310 ~ S320).

Then, it is checked whether the specific wavelength is less than or equal to the prescribed value, and if it is less than or equal to the prescribed value, the wavelength is converted into the variable type LED light (S330 to S340).

In addition, it is checked whether the set time is exceeded (S350).

This is obtained by subtracting the solar irradiation amount obtained by integrating the solar radiation amount through the light sensor to the standard light demand of the key inputted by the data input unit according to the type of crop for cultivation of the vinyl house, and then the vinyl house for the temperature value measured by the temperature sensor. Calculate the amount of light to be irradiated by the variable LED lighting by multiplying the constant applied for each type of cultivated crop.

Subsequently, step (e) sends a PWM output control signal to the DC-DC converter to control the light output of the variable LED lighting according to the result calculated by the light requirement setting unit in the microcomputer unit.

At this time, in the DC-DC converter, the on / off ratio of the switching element is adjusted according to the output control signal of the microcomputer to widen the width of the Vin pulse applied to the filter, thereby increasing the final output applied to the variable LED lighting, or the Vin pulse. Narrow the width of the DC voltage is adjusted to lower the final output applied to the variable LED lighting.

Subsequently, when (f) the microcomputer sends a specific visible light wavelength signal to the wavelength classifying control unit, the wavelength classifying control unit receives a DC voltage from the output control circuit unit, and the infrared, red light visible light wavelength, super red light visible light wavelength, blue light visible light wavelength. , Green light wavelength, yellow light wavelength, ultraviolet light,

In the variable type LED light, the variable type LED light is changed according to specific infrared, visible and ultraviolet wavelength signals sent from the wavelength classification controller to emit light to the crop for growing a greenhouse.

At this time, through the power sensing resistor 164 R2 configured between the variable LED lighting 160 and the microcomputer unit, a reaction current linearly flowing according to the strength of the load power according to the variable LED lighting operation is applied to the voltage through the power sensing resistor R2. Is converted to one side of the input terminal of the microcomputer.

In addition, the microcomputer unit calculates the intensity of the load power according to the operation of the variable LED lighting 160 and the intensity of the DC voltage output from the DC-DC converter, and outputs the insufficient voltage as a PWM output control signal to the DC-DC converter. Let's do it.

In the above description of the plant cultivation apparatus and cultivation method using the variable LED light of the present invention with reference to the accompanying drawings, the present invention has been described with a particular shape, various modifications and changes by those skilled in the art, such variations and modifications Should be construed as being included in the scope of the invention.

1 is a perspective view showing a plant cultivation apparatus for a vinyl house through an optical demand automatic control unit according to the present invention;

Figure 2 is an internal perspective view showing the components of the plant cultivation apparatus for a vinyl house through the light demand automatic control unit according to the present invention,

Figure 3 is an embodiment showing the internal components and the temperature sensor of the optical sensor configured on the top of the variable LED lighting according to the present invention,

Figure 4 is a block diagram showing the components of the plant cultivation apparatus for a vinyl house through the automatic light control unit according to the present invention,

5 is a diagram showing an embodiment of a variable LED light according to the present invention;

6 is a perspective view showing a variable type LED light having a fluorescent structure according to the present invention,

7 is an exploded perspective view illustrating components of a variable type LED light having a fluorescent structure according to the present invention;

8 is a perspective view showing a variable type LED light having an incandescent lamp type structure according to the present invention;

9 is a perspective view showing a variable type LED light having a street lamp type structure according to the present invention;

Figure 10 is an embodiment showing the detachability of the variable LED lighting according to the present invention,

11 is a graph showing the measurement of the solar radiation dose by integrating the solar radiation obtained through the sensing resistance R1 in the microcomputer according to the present invention,

12 is a flowchart illustrating a plant cultivation method for a vinyl house through an optical demand automatic control unit according to the present invention;

FIG. 13 is a flowchart illustrating a process of calculating light requirements for a greenhouse cultivation crop through a light demand setting unit according to the present invention and controlling them to emit light in a variable type LED light.

<Brief Description of Reference Symbols>

110: sensor unit 120: data input unit

130: microcomputer unit 140: output control circuit unit

150: wavelength classification control unit 160: variable LED lighting

Claims (4)

delete After measuring the intensity and temperature of the sunlight reflected by the vinyl house, the microcomputer controls the light output of the variable type LED light that varies in the infrared, visible and ultraviolet wavelength ranges according to the standard light requirements of the greenhouse crop. In the plant cultivation device comprising a light demand automatic control unit for irradiating the cultivation of plants by emitting a variable LED light source to the greenhouse cultivation crop, The optical demand automatic control unit, The sensor unit is composed of a light sensor for measuring the intensity of sunlight reflected by the plastic house, and a temperature sensor for measuring the indoor temperature,  The RS232 communication port is configured with a data input unit for inputting reference data values for the greenhouse light cultivation crop, the growth temperature and humidity of the cultivation crop through the keypad. After calculating the light irradiation amount measured from the sensor unit to the reference light requirement of the greenhouse for cultivation of the greenhouse, the microcomputer unit is configured to control the light output of the variable type LED lighting to be irradiated for each wavelength band according to the calculated result. By adjusting the on / off ratio of the switching element according to the output control signal of the microcomputer part, the width of the Vin pulse applied to the filter is increased to increase the final output applied to the variable LED lighting, or the width of the Vin pulse is narrowed to reduce the width of the variable LED. The output control circuit unit is configured to adjust the DC voltage to lower the final output applied to the light, According to the specific infrared, visible and ultraviolet wavelength signals of the microcomputer unit, DC voltage is input from the output control circuit unit, and any one of infrared, red, visible, super red, visible, blue, visible, green, visible, yellow, and Plant cultivation apparatus using a variable LED characterized in that it comprises a wavelength classification control unit for controlling to be selected to transmit a signal of a specific wavelength range selected by the variable LED lighting. The method of claim 2, The output control circuit unit, The switching transistor is turned on / off in accordance with the PWM output control signal of the microcomputer, and when the switching transistor is turned on / off, a step-down transformer for boosting and outputting a Vin pulse is connected, and the voltage output from the step-down transformer is connected to the diode. Plant rectification apparatus for a vinyl house using a variable LED, characterized in that it comprises a DC-DC converter connected via the AC-DC rectifier for rectifying through, and outputting the final DC voltage applied to the variable LED lighting to the wavelength classification controller. delete

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