KR101086276B1 - Apparatus and Method for controlling color LED of plant growth - Google Patents

Abstract

The present invention relates to a plant cultivation LED lighting control device and method for optimizing the plant cultivation environment by adjusting the LED lighting. The present invention, the power supply; A power supply unit converting an AC voltage provided from the power supply unit into a DC voltage DC having a predetermined voltage; An illumination control unit outputting pulse power modulated (PMW) the power supplied from the power supply unit; An amplifier which amplifies the current signal received by the lighting controller and converts the current signal into a constant current to supply a current having a constant value; An LED module supplied with the amplified current signal and driven to maintain a desired brightness; A detector for detecting a light quantity, a wavelength of light, and a color temperature output from the LED module; An A / D converter converting the analog signal detected by the detector into a digital signal; And controlling the operation state of the lighting controller by comparing the light amount, wavelength, and color temperature signal inputted through the A / D converter with a pre-stored reference value to selectively control the brightness, signal intensity, and on / off time of the LED module. It characterized in that it comprises a control unit. Therefore, the color sensor is applied to receive data such as light quantity, wavelength and color temperature in real time to automatically adjust the operating conditions of each LED lighting to optimize the plant cultivation environment.

LED, Lighting, Lamp, Plant, Cultivation, Pulse Width Modulation (PMW), Color Sensor

Description

LED lighting control device and method for plant cultivation {Apparatus and Method for controlling color LED of plant growth}

The present invention relates to an LED lighting control device and method for plant cultivation, and more particularly, to an LED lighting control device and method for plant cultivation to optimize the cultivation environment of the plant by adjusting the LED light.

In general, essential elements of plant cultivation include light, soil and water. Among them, light is known to be involved in morphogenesis, dormancy, etc. with photosynthesis of plants and to influence the ecotypes of plant species and varieties.

The reason why plants are sensitive to light is that phenomena such as photosynthesis, development, and dormancy related to the growth of various plants are related to various photoreceptors, and these photoreceptors have a specific wavelength band of action.

Therefore, by properly adjusting the light irradiated to the plant it is possible to control the growth and growth of the plant, and it can be seen that the light having a specific wavelength band plays an important role in the growth and growth of the plant.

In addition, light quantity and color temperature are known to play an important role in plant growth and growth.

However, the conventional plant cultivation apparatus and method has a problem that it is difficult to provide the optimum conditions for various plant conditions and the surrounding environment because it only has a function of only blinking the light, so that efficiency is low and costs are high.

Therefore, the present invention is to overcome the above-described problems, by applying a color sensor in real time to receive data such as light quantity, wavelength, color temperature, such as to automatically adjust the operating conditions of each LED lighting to optimize the plant cultivation environment It is an object of the present invention to provide an LED lighting control device and method for plant cultivation.

Plant lighting LED lighting control apparatus according to the present invention to achieve the above object, the power supply; A power supply unit converting an AC voltage provided from the power supply unit into a DC voltage DC having a predetermined voltage; An illumination control unit outputting pulse power modulated (PMW) the power supplied from the power supply unit; An amplifier which amplifies the current signal received by the lighting controller and converts the current signal into a constant current to supply a current having a constant value; An LED module supplied with the amplified current signal and driven to maintain a desired brightness; A detector for detecting a light quantity, a wavelength of light, and a color temperature output from the LED module; An A / D converter converting the analog signal detected by the detector into a digital signal; And controlling the operation state of the lighting controller by comparing the light amount, wavelength, and color temperature signal inputted through the A / D converter with a pre-stored reference value to selectively control the brightness, signal intensity, and on / off time of the LED module. It characterized in that it comprises a control unit.

The detection unit may include a light amount detection unit detecting a light amount output from the LED module; A wavelength detector detecting a wavelength of light output from the LED module; It includes a color temperature detector for detecting the color temperature of the light output from the LED module.

The light quantity detector, the wavelength detector, and the color temperature detector include a filter for filtering each color signal from the input light, and a color sensor for detecting the color signal passing through the filter.

The color sensor reads the combined data of the light flowing from the outside and the light emitted from the LED module and feeds it back to the controller.

It is more preferable that the color temperature of the previously set light source is maintained as it is even if the intensity of the light source changes under the control of the controller.

The present invention further includes a timer that provides time information to the controller.

The apparatus may further include a data storage configured to store a reference value for controlling an operation state of the lighting controller according to the light amount, the wavelength, and the color temperature signal.

The apparatus may further include a user interface unit for inputting a user's command to the controller and outputting a processing result.

The LED module is configured by modularizing the LED lamp by color and arranged side by side on the panel.

The LED lamp is composed of three primary colors of R (red), G (green), and B (blue), wherein each LED module is composed of LED lamps of the same color or a mixture of LED lamps of different colors. It is desirable to.

LED lighting control method for plant cultivation according to the present invention comprises the steps of: converting an alternating voltage (AC) provided from the power supply to a constant voltage direct current (DC) of the power supply; Outputting a pulse width modulation (PMW) from the power supply unit to the power supplied from the lighting control unit; Amplifying and amplifying the current signal received by the lighting control unit and converting the constant current into a constant current to supply a constant value of current; Receiving a current signal amplified by the amplifier to drive an LED module to maintain a desired brightness; Detecting an amount of light, a wavelength of light, and a color temperature output from the LED module by a detector; Converting an analog signal detected by the detector into a digital signal in an A / D converter; And controlling the operation state of the lighting controller by comparing the light amount, wavelength, and color temperature signal input through the A / D converter with a previously stored reference value to select brightness, signal strength, and on / off time of the LED module. It characterized in that it comprises a step of controlling to.

The detecting step may include: a light amount detecting step of detecting a light amount output from the LED module; A wavelength detection step of detecting a wavelength of light output from the LED module; And a color temperature detection step of detecting a color temperature of light output from the LED module.

The light quantity detection step, the wavelength detection step, and the color temperature detection step may include filtering each color signal from the input light through a filter, and detecting the color signal passing through the filter with a color sensor.

In the detecting by the color sensor, it is preferable to read data in which the light flowing from the outside and the light emitted from the LED module are combined and fed back to the controller.

It is more preferable that the color temperature of the previously set light source is maintained as it is even if the intensity of the light source changes under the control of the controller.

The present invention further includes providing time information to the controller by a timer unit.

The method may further include storing a reference value for controlling an operation state of the lighting controller according to the light amount, the wavelength, and the color temperature signal in the data storage unit.

The method may further include inputting a user's command to the controller through a user interface and outputting a processing result.

According to the present invention, a plant cultivation LED lighting control device and method, by applying a color sensor in real time data such as light quantity, wavelength, color temperature automatically adjust the operating conditions of each LED lighting plant cultivation environment Has the effect of optimizing.

Hereinafter, with reference to the accompanying drawings the configuration and operation of the system toilet according to an embodiment of the present invention will be described in detail.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may properly define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, since the embodiments shown in the specification and the configuration shown in the drawings is only one of the most preferred embodiment of the present invention, it is understood that there may be various equivalents and modifications that can replace them at the time of the present application shall.

1 is a block diagram showing an embodiment of the LED lighting control device for plant cultivation according to the present invention, Figure 2 is a block diagram showing a detection unit of Figure 1 in more detail.

As shown in the present invention, the power supply unit 10, power supply unit 20, lighting control unit 30, amplification unit 40, LED modules 50, 51, 52, LED lamp 53, detection unit 60 ), Light amount detection unit 61, wavelength detection unit 62, color temperature detection unit 63, filter 64, color sensor 65, A / D conversion unit 70, control unit 80, timer unit 81 And a data storage unit 82 and a user interface unit 90.

The power supply unit 10 provides a commercial AC voltage of 110V to 220V.

The power supply unit 20 converts the AC voltage AC provided from the power supply unit 10 into a DC voltage DC having a predetermined voltage for driving the LED modules 50, 51, and 52.

The lighting controller 30 outputs the pulse width modulated (PMW) of the power supplied from the power supply unit 20. The lighting controller 30 controls the driving of the LED modules 50, 51, and 52 through the pulse width modulation (PMW) control.

The lighting controller 30 generates a square wave by switching the voltage received from the power supply unit 20 according to a signal controlled by the controller 80.

Accordingly, the lighting controller 30 controls the lighting of the LED modules 50, 51, and 52 by modulating the pulse width of the square wave by driving a pulse width modulation (PMW).

The amplifier 40 amplifies and converts the current signal received from the lighting controller 30 into a constant current so that a constant value of current is supplied to the LED modules 50, 51, and 52.

The LED modules 50, 51, and 52 are driven by receiving the current signal amplified by the amplifier 40 to maintain desired brightness.

The detector 60 detects the amount of light output from the LED modules 50, 51, and 52, the wavelength of the light, and the color temperature. To this end, the detection unit 60 includes a light amount detection unit 61, a wavelength detection unit 62, and a color temperature detection unit 63.

The light amount detector 61 detects the light amount output from the LED modules 50, 51, and 52.

The wavelength detector 62 detects wavelengths of light output from the LED modules 50, 51, and 52.

The color temperature detector 63 detects the color temperature of the light output from the LED modules 50, 51, and 52.

The light quantity detector 61, the wavelength detector 62, and the color temperature detector 63 are each composed of a filter 64 and a color sensor 65.

The filter 64 filters each color signal from the input light. The color sensor 65 detects the color signal passed through the filter 64.

The A / D converter 70 converts the analog signal detected by the light amount detector 61, the wavelength detector 62, and the color temperature detector 63 into a digital signal.

The controller 80 compares the light amount, the wavelength, and the color temperature signal input through the A / D converter 70 with a pre-stored reference value to control the operation state of the lighting controller 30 to control the LED module 50, 51,. 52) to selectively control the brightness, signal strength and on / off time.

The color sensor 65 reads the light quantity, wavelength, and color temperature data of the light introduced through the filter 64, converts the data into pulse data, and transmits the data to the control unit 80.

The color sensor 65 reads the combined data of the light flowing from the outside and the light emitted from the LED modules 50, 51, and 52 and feeds it back to the controller 80.

At this time, even if the intensity of the light source of the LED module 50, 51, 52 is changed, the color temperature of the previously set light source can be maintained as it is.

The controller 80 has a built-in time setting function and a clock function for each color such as lighting, and performs flashing, dimming, and mixing functions for each color of the LED modules 50, 51, and 52 according to the correct time.

To this end, the controller 80 may be a microprocessor (MICOM) having a calculation, comparison and determination function, or a central processing unit such as a CPU and an MPU.

To this end, the timer unit 81 provides time information to the controller 80.

The data storage unit 82 stores a reference value for controlling the operation state of the lighting controller 30 according to the light amount, the wavelength, and the color temperature signal.

The user interface unit 90 includes an input / output unit (not shown) such as a general keyboard and a monitor to input a user's command to the controller 80 and output a processing result.

The user may change the reference value stored in the data storage unit 82 through the user interface unit 90.

Therefore, the user can determine the optimal condition and set the reference value according to the light quantity, wavelength, and color temperature signal, and can conveniently change it at any time.

3 is a state diagram showing the color sensor of FIG.

As shown, the color sensor 65 of the present invention reads the light quantity, color temperature, and color coordinate data, converts them into digital signals, and transfers them to the controller 80 through I2C communication. The user interface unit 90 receives the data and displays light quantity in lux, color temperature in K, and color coordinates in X and Y values.

4 is a diagram illustrating a state of use of the lighting control unit of FIG. 1.

As shown, the lighting control unit 30 of the present invention is automatically adjusted by sending the PWM output to the LED module (50, 51, 52) until it matches the light amount, color temperature or color coordinates set by the user.

5 is a state diagram showing the LED module of FIG.

As shown, the LED module (50, 51, 52) of the present invention has a built-in constant current device (not shown) to adjust the amount of light, color temperature by adjusting the respective LED current by the PWM signal sent from the lighting control unit 30 And color coordinates.

To this end, the LED module (50, 51, 52) of the present invention is illuminated by receiving a signal modulated the pulse width of the square wave by driving the pulse width modulation (PMW) of the illumination control unit 30. The LED modules 50, 51, and 52 may be configured by modularizing the LED lamps 53 by color and arranging them side by side in a conventional panel.

In addition, each LED module 50, 51, 52 may be composed of LED lamps 53 of the same color, or may be configured by mixing the LED lamps 53 of different colors.

The LED lamp 53 may be composed of three primary colors of R (red), G (green), B (blue).

Figure 6 is a control flow diagram showing an embodiment of the LED lighting control method for plant cultivation according to the present invention.

As shown, the present invention, the step of converting the AC voltage (AC) provided from the power supply unit 10 to a DC voltage (DC) of a constant voltage in the power supply unit 20 (S100); Outputting the pulse width modulation (PMW) by the lighting control unit 30 from the power supplied from the power supply unit 20 (S110); Amplifying part 40 amplifying the current signal received by the lighting control part 30 and converting the current signal into a constant current to supply a current having a constant value (S120); Receiving a current signal amplified by the amplifier 40 to drive the LED modules 50, 51, and 52 to maintain a desired brightness (S130); Detecting an amount of light, a wavelength of light, and a color temperature output from the LED module (50, 51, 52) by the detector (S140); Converting the analog signal detected by the detector (60) into a digital signal in an A / D converter (70) (S150); And controlling the operation state of the lighting controller 30 by comparing the light amount, wavelength, and color temperature signal inputted through the A / D conversion unit 70 with a pre-stored reference value in the controller 80 to control the LED module 50. And selectively controlling brightness, signal strength, and on / off time of (51, 52) (S160).

The detecting step (S150) may include: a light amount detecting step (S151) of detecting a light amount output from the LED module (50, 51, 52); A wavelength detection step (S152) of detecting a wavelength of light output from the LED module (50, 51, 52); It includes a color temperature detection step (S153) for detecting the color temperature of the light output from the LED module (50, 51, 52).

The light quantity detecting step S151, the wavelength detecting step S152, and the color temperature detecting step S153 include filtering respective color signals from the input light through a filter, and colorizing the color signals passed through the filter 64. Characterized in that it comprises a step of detecting with a sensor.

In the detecting by the color sensor 65, it is preferable to read data in which the light flowing from the outside and the light emitted from the LED modules 50, 51, and 52 are combined and fed back to the controller 80.

Even if the intensity of the light source changes under the control of the controller 80, the color temperature of the previously set light source is more preferably maintained as it is.

The present invention further includes providing time information to the controller 80 by a timer unit 81.

The method may further include storing, in the data storage unit 82, a reference value for controlling the operation state of the illumination controller 30 according to the light amount, the wavelength, and the color temperature signal.

The method may further include inputting a user's command to the controller 80 through a user interface unit 90 and outputting a processing result.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

1 is a block diagram showing an embodiment of a plant cultivation LED lighting control apparatus according to the present invention.

FIG. 2 is a block diagram illustrating in more detail the detector of FIG. 1. FIG.

3 is a use state diagram showing the color sensor of FIG.

4 is a use state diagram showing the lighting control unit of FIG.

5 is a use state diagram showing the LED module of FIG.

Figure 6 is a control flow diagram showing an embodiment of a plant cultivation LED lighting control method according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: power supply unit 20: power supply unit

30: lighting control unit 40: amplifying unit

50, 51, 52: LED module 53: LED lamp

60: detector 61: light amount detector

62: wavelength detector 63: color temperature detector

64 filter 65 color sensor

70: A / D conversion unit 80: control unit

81: timer unit 82: data storage unit

90: user interface unit

Claims (20)

Power supply; A power supply unit converting an AC voltage provided from the power supply unit into a DC voltage DC having a predetermined voltage; An illumination control unit outputting pulse power modulated (PMW) the power supplied from the power supply unit; An amplifier which amplifies the current signal received by the lighting controller and converts the current signal into a constant current to supply a current having a constant value; An LED module supplied with the amplified current signal and driven to maintain a desired brightness; A detector for detecting a light quantity, a wavelength of light, and a color temperature output from the LED module; An A / D converter converting the analog signal detected by the detector into a digital signal; And The light amount, wavelength, and color temperature signals inputted through the A / D converter are compared with the previously stored reference values to control the operation state of the lighting controller to selectively control the brightness, signal strength, and on / off time of the LED module. Plant lighting LED lighting control device comprising a control unit. The method of claim 1, The detection unit, A light amount detecting unit detecting a light amount output from the LED module; A wavelength detector detecting a wavelength of light output from the LED module; LED lighting control device for plant cultivation comprising a color temperature detection unit for detecting the color temperature of the light output from the LED module. The method of claim 2, The light amount detector, the wavelength detector and the color temperature detector A filter for filtering each color signal from incoming light, LED lighting control device for plant cultivation, characterized in that consisting of a color sensor for detecting the color signal passed through the filter. The method of claim 3, wherein The color sensor LED lighting control device for plant cultivation, characterized in that to feed back the control unit reads the combined data from the light flowing from the outside and the light from the LED module. The method of claim 4, wherein LED lighting control device for plant cultivation, characterized in that the color temperature of the previously set light source is maintained as the set value even if the intensity of the light source under the control of the controller. The method of claim 1, LED lighting control device for plant cultivation further comprising a timer for providing time information to the control unit. The method of claim 1, LED lighting control device for plant cultivation further comprising a data storage for storing a reference value for controlling the operation state of the light control unit according to the light amount, wavelength and color temperature signal. The method of claim 1, And a user interface unit for inputting a user's command to the control unit and outputting a processing result. The method of claim 1, The LED module is a plant cultivation LED lighting control device, characterized in that the LED lamp modularized by color and arranged side by side on the panel. The method of claim 9, The LED lamp is composed of three primary colors of R (red), G (green), B (blue), The LED module for plant cultivation, characterized in that each of the LED module is composed of LED lamps of the same color or a mixture of LED lamps of different colors. Power supply; A power supply unit for converting an AC voltage provided from the power supply unit into a DC voltage having a predetermined voltage; An illumination control unit outputting pulse power modulated (PMW) the power supplied from the power supply unit; An amplifier which amplifies the current signal received by the lighting controller and converts the current signal into a constant current to supply a current having a constant value; An LED module supplied with the amplified current signal and driven to maintain a desired brightness; A detector for detecting a light quantity, a wavelength of light, and a color temperature output from the LED module; An A / D converter converting the analog signal detected by the detector into a digital signal; The light amount, wavelength, and color temperature signals inputted through the A / D converter are compared with the previously stored reference values to control the operation state of the lighting controller to selectively control the brightness, signal strength, and on / off time of the LED module. Control unit; A timer unit for providing time information to the controller; A data storage unit for storing a reference value for controlling an operation state of the lighting controller according to light quantity, wavelength, and color temperature signal; And And a user interface for inputting a user's command to the control unit and outputting a processing result. Converting an AC voltage provided from the power supply unit into a DC voltage of a predetermined voltage in the power supply unit; Outputting a pulse width modulation (PMW) from the power supply by the lighting control unit; Amplifying and amplifying the current signal received by the lighting control unit and converting the constant current into a constant current to supply a constant value of current; Receiving a current signal amplified by the amplifier to drive an LED module to maintain a desired brightness; Detecting an amount of light, a wavelength of light, and a color temperature output from the LED module by a detector; Converting the analog signal detected by the detector into a digital signal in an A / D converter; And The controller compares the light amount, wavelength, and color temperature signal input through the A / D converter with a pre-stored reference value to control the operation state of the lighting controller to selectively select brightness, signal strength, and on / off time of the LED module. Plant lighting LED lighting control method comprising the step of controlling. 13. The method of claim 12, The detection unit, A light amount detecting step of detecting a light amount output from the LED module; A wavelength detection step of detecting a wavelength of light output from the LED module; And a color temperature detection step of detecting a color temperature of light output from the LED module. The method of claim 13, The light amount detection step, wavelength detection step and color temperature detection step Filtering each color signal from the input light through a filter; LED lighting control method for plant cultivation comprising the step of detecting the color signal passing through the filter with a color sensor. The method of claim 14, Detecting with the color sensor LED lighting control method for plant cultivation, characterized in that fed back to the control unit by reading the combined data from the light flowing from the outside and the LED module. The method of claim 15, Even if the intensity of the light source changes under the control of the controller, the color temperature of the previously set light source is maintained as set value LED plant lighting control method. The method of claim 12, The LED lighting control method for plant cultivation further comprising the step of providing time information to the control unit in the timer. The method of claim 12, And storing a reference value for controlling an operation state of the lighting control unit according to the light quantity, wavelength, and color temperature signal in a data storage unit. The method of claim 12, And a method of inputting a user's command to the controller through a user interface unit and outputting a processing result. Converting an AC voltage provided from the power supply unit into a DC voltage of a predetermined voltage in the power supply unit; Outputting a pulse width modulation (PMW) from the power supply by the lighting control unit; Amplifying and amplifying the current signal received by the lighting control unit and converting the constant current into a constant current to supply a constant value of current; Receiving a current signal amplified by the amplifier to drive an LED module to maintain a desired brightness; Detecting an amount of light, a wavelength of light, and a color temperature output from the LED module by a detector; Converting an analog signal detected by the detector into a digital signal in an A / D converter; The controller compares the light amount, wavelength, and color temperature signal input through the A / D converter with a pre-stored reference value to control the operation state of the lighting controller to selectively select brightness, signal strength, and on / off time of the LED module. Controlling; Providing time information to the controller by a timer unit; Storing a reference value for controlling an operation state of the lighting controller according to the light amount, wavelength, and color temperature signal in a data storage unit; And And a method of inputting a user's command to the control unit through a user interface unit and outputting a processing result.

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