KR20230138992A - Spectrum variable LED lighting device for medical cannabis hemp cultivation - Google Patents

Abstract

The present invention relates to a spectrum-variable LED lighting device for cultivating medicinal cannabis.
The LED lighting device for cultivating spectrum-variable medicinal hemp according to an embodiment of the present invention cross-mounts an LED package with a 620nm peak wavelength and an LED package with a 660nm peak wavelength, respectively, and performs individual or sequential dimming through PWM control. A light emitting unit composed of a first light emitting unit and a second light emitting unit that allows the peak spectrum or dominant spectrum to be varied from 620 nm wavelength, known as the pest extermination spectrum, to 660 nm wavelength; And a control unit that controls the light emitting unit to manage pest extermination, and controls each LED included in the first light emitting unit or the second light emitting unit to be turned on/off based on a preset pest extermination mode. It is characterized by

Description

Spectrum variable LED lighting device for medical cannabis hemp cultivation}

The present invention relates to a spectrum-variable LED lighting device for cultivating medicinal cannabis. In detail, LED packages with a peak wavelength of 620 nm and LED packages with a peak wavelength of 660 nm are cross-mounted, and individual or sequential dimming is performed through PWM control. This relates to a spectrum-variable LED lighting device for medicinal hemp cultivation that can be applied in a greenhouse cultivation environment by allowing the peak spectrum or dominant spectrum to be varied from 620nm wavelength, known as the pest extermination spectrum, to 660nm wavelength.

Recently, interest in the cultivation of medicinal hemp has been increasing, and it is necessary to prevent pests from approaching the medicinal hemp cultivation environment, especially in spring, summer, and fall when pests such as mosquitoes and moths are active. .

On the other hand, if work has to be done with the windows of the greenhouse growing medicinal hemp grown in the summer, it is necessary to use lighting to control the access of harmful pests.

However, depending on the type of pest, the spectrum of wavelengths to be avoided or preferred may be different, and the problem that one product can only eradicate specific pests can be considered.

The biggest goal of the spectrum-variable medicinal cannabis hemp cultivation LED lighting device is to secure the effect of exterminating as many species of pests as possible through one LED lighting device.

In general, high-pressure sodium was used to prevent access by insects or pests such as moths. However, high-pressure sodium lamps have a short lifespan of about 8,000 hours, low light efficiency, very high power consumption and generate a lot of heat, so as usage increases over time, the lamp must be replaced periodically, and constant output is not achieved. There is a problem that a certain amount of time is consumed.

An example of prior art related to pest extermination LED is “Pest extermination device and method using digital dimming of light emitting diode and flexible circuit board” in Korean Patent Publication No. 10-2012-0083770.

The prior art is a digital and flexible circuit board of light emitting diodes that can exterminate pests by switching on/off the light emitted from the LED lighting device at a frequency that pests dislike through a dimming unit connected to an LED light source constructed on a flexible circuit board. It relates to devices and methods used to exterminate pests.

However, the prior art is a mechanical solution to the light distribution characteristics of the light source emitting a specific single wavelength, and has a problem in that it does not have a function to repel various pests.

In particular, there is a problem that spectrum control is impossible except for the application of a flexible substrate to change light distribution characteristics.

Republic of Korea Patent Publication No. 10-2012-0083770

The present invention is intended to solve these conventional problems, by cross-mounting an LED package with a 620nm peak wavelength and an LED package with a 660nm peak wavelength, respectively, and performing individual or sequential dimming through PWM control to achieve a 620nm spectrum known as the pest extermination spectrum. The purpose is to implement a spectrum variable LED lighting device for medicinal hemp cultivation that allows the peak spectrum or dominant spectrum to be varied from the wavelength to the 660nm wavelength.

To achieve this purpose, the LED lighting device for cultivating spectrum-variable medicinal cannabis according to an embodiment of the present invention is an LED bulb type or LED in which an LED package with a peak wavelength of 620 nm and an LED package with a peak wavelength of 660 nm are cross-mounted, respectively. It has a module form, and through PWM control, the current of the package group emitting a 660nm wavelength is dimmed from 0% to 100%. At the same time, the current of the package group emitting a 620nm wavelength is dimmed from 100% to 0%, ultimately reducing the current from 620nm to 660nm. It is characterized by sequential and circular emission of peak wavelengths.

In the present invention according to another embodiment, the light sources of the first light emitting unit 110 and the second light emitting unit 120 each include a phosphor conversion type LED package or a pure chip LED package that emits peak wavelengths of 620 nm and 660 nm, respectively. It is characterized by:

In the present invention according to another embodiment, the package of the first light emitting unit and the second light emitting unit is characterized in that it is a phosphor conversion type or pure chip type that combines a blue pumping light source such as an SMD type or COB type and a phosphor, and each The emission wavelength is characterized by controlling the entire pest extermination wavelength combined by dimming by controlling the current supplied to the two light sources using the PWM method.

In the present invention according to another embodiment, all LEDs of the first light emitting unit and the second light emitting unit are controlled to be turned on/off/dimmed simultaneously or separately.

In the present invention according to another embodiment, each LED light source of the first light emitting unit or the second light emitting unit is controlled by a PWM (Pulse Width Modulation) method.

In the present invention according to another embodiment, the light emitting unit includes two or more first light emitting units, and is formed by applying different amounts of red phosphor to the wavelength-emitting LEDs of the light emitting units.

The present invention according to another embodiment further includes a camera module that collects images by photographing the state of pest extermination, wherein the control unit emits the first light based on the image of the state of pest extermination collected by the camera module. It is characterized in that it controls the secondary or second light emitting unit.

The present invention according to another embodiment further includes a wavelength detection sensor that detects the wavelength of light emitted from the light emitting unit, wherein the control unit operates the camera module according to the wavelength of light detected by the wavelength detection sensor. It is characterized by correcting the collected status images of pest extermination.

The present invention according to another embodiment further includes a temperature sensor that measures the temperature of the pest extermination space, and the control unit controls the first light emitting unit or the second light emitting unit based on the temperature measured by the temperature sensor. It is characterized by:

The present invention according to another embodiment further includes a condenser lens at the radiating end of the light emitting unit that allows light emitted from the first light emitting unit and the second light emitting unit to reach only within the pest extermination range. Do it as

The present invention has the advantage of preventing various species of pests from approaching through a single LED lighting fixture.

Figure 1 is a photograph showing a spectrum-variable LED lighting device for cultivating medicinal hemp according to an embodiment of the present invention.
Figure 2 is a diagram showing the pest repellent spectrum along with the emission spectrum range of the LED lighting device for cultivating spectrally variable medicinal hemp according to an embodiment of the present invention.
Figure 3 is an exploded photograph of a bulb-type spectrum variable LED lighting device for cultivating medicinal cannabis hemp according to an embodiment of the present invention.
Figure 4 is a schematic diagram showing PWM control for the first light emitting unit and the second light emitting unit according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. However, when explaining the present invention in detail, if the technical idea of the present invention is obscured or unclear by explaining the known configuration in detail, the description regarding the above known configuration will be omitted.

Figure 1 is a photograph showing a spectrum-variable LED lighting device for cultivating medicinal hemp according to an embodiment of the present invention.

As shown in FIG. 1, the LED lighting device 100 for cultivating spectrally variable medicinal cannabis according to an embodiment of the present invention includes a first light emitting unit 110 having an emission wavelength of 620 nm. , It includes a second light emitting unit 120 with an emission wavelength of 660 nm, and the light emitting unit 130 and a control unit 140 configured to be mounted on a circuit board are disposed inside the casing.

The light emitting unit 130 consists of a first light emitting unit 110 having an emission wavelength of 620 nm, an LED emitting a red region wavelength, and a second light emitting unit 120 having an emission wavelength of 660 nm.

The control unit 140 controls the light emitting unit 120 to control the pest extermination spectrum, and each LED included in the first light emitting unit 122 or the second light emitting unit 124 is set to a preset pest extermination mode. It is controlled to be on/off/dimmed based on.

The control unit 140 is configured to perform the control function of the light emitting unit 120, the control function of the camera module and each sensor described later, and the analysis function of the collected images, and the collected images and general pest extermination images. This can be done by including a storage space to store .

In the spectrum-variable LED lighting device 100 for cultivating medicinal hemp according to an embodiment of the present invention, the preset pest extermination mode is selectable by the user.

The pest extermination mode allows the LED to radiate (irradiate) in different ways depending on the situation requiring different wavelengths during the pest extermination process, thereby exterminating various species of pests using different methods specified by the user. Each LED emits radiation.

For example, the mode may be controlled so that all LEDs of the first light emitting unit 110 and the second light emitting unit 120 are turned on/off/dimmed at the same time.

The applicant of this patent invention uses the wavelength-emitting LED included in the first light-emitting unit 110 to exterminate pests through on/off/dimming control of the first light-emitting unit 110 and the second light-emitting unit 120. It was confirmed that when the wavelength-emitting LEDs included in the 2 light emitting unit 120 are used in combination at the same time, they can have an effect in exterminating various pests. Based on these results, all LEDs of the first light emitting unit 110 and the second light emitting unit 120 are configured to be controlled to be on/off/dimmed simultaneously or separately.

However, the output of each LED is not necessarily controlled to be the same, and it is desirable to control the output of each LED appropriately according to the pest extermination environment and condition.

Figure 4 is a schematic diagram showing PWM control for the first light emitting unit and the second light emitting unit according to an embodiment of the present invention.

The first or second light emitting unit according to an embodiment of the present invention is controlled using a PWM (Pulse Width Modulation) method.

PWM (Pulse Width Modulation) control adjusts the width of the pulse to adjust the size and time of power delivered to each LED to facilitate on/off/dimming control of the light emitting unit 130.

By using PWM control in the LED lighting device 100 for pest control according to this embodiment, each LED is automatically controlled by programming without the user having to manually control the on/off/dimming of the LED lighting device 100, more preferably. The first light emitting unit 122 and the second light emitting unit 124 are automatically controlled on/off/dimming.

For example, as shown in FIG. 4, in the above mode, the control unit 140 controls each LED included in the first light emitting unit to have a (relative) output of 2 by the PWM method, and the second light emits. Each LED included in the unit can be controlled to have a (relative) output of 1, and all LEDs included in the first and second light emitting units can be configured to be controlled on/off/dimming at the same time. .

In the light emitting unit 130 according to an embodiment of the present invention, the 620nm wavelength emitting LED and the 660nm wavelength emitting LED may each be formed in the form of a single surface mount device (SMD) chip, and may be configured as a plurality of The chips may be configured to form one LED module having a strip shape. Additionally, each of the LEDs may be of a ball bulb type or module type.

For example, the 620 nm wavelength emitting LED is configured to emit a wavelength that has a maximum at 620 nm, and the 660 nm wavelength emitting LED is configured to emit a wavelength that has a maximum at 660 nm.

In the present invention according to another embodiment, the light emitting unit 130 includes two or more first light emitting units, and each of the first light emitting units' 620 nm wavelength emitting LED and 660 nm wavelength emitting LED is connected to one blue region wavelength emitting LED. They can be formed by applying different amounts of red phosphor or can be formed using a bare chip method.

For example, the 620nm wavelength-emitting LED can be implemented by applying a small amount of green, yellow, or red phosphor to a blue LED.

The phosphor is a material that absorbs the light emitted from the LED and emits it as light of a different wavelength.

For example, when applying a red phosphor to a blue LED, the light in the blue region wavelength emitted from the blue LED and the light in the red region emitted by the excited fluorescent material are combined to produce blue of a different wavelength or another color. (e.g. white, red, etc.) can be produced.

The phosphor is an inorganic compound composed of an inorganic receptor material doped with an optically active element and is made of powder particles with a size of 1 to several tens of μm.

The red phosphor according to an embodiment of the present invention may be made of any one of several known red light-emitting phosphors, for example, K2SiF6:Mn4+ or M2Si5N8 (M=Ca, Sr) synthesized using SiO2, KMnO4, HF, H2O2 compounds. , Ba), (Ca, Sr)AlSiN3:Eu2+, etc. may be inorganic phosphors. At this time, the blue region wavelength emitting LED to which the red phosphor is applied may be a known blue light LED, for example, a GaN LED that emits blue light.

By allowing LEDs with these various wavelengths to emit light through PWM driving, it is possible to provide an optimal light spectrum suitable for each stage of pest control.

The application of the phosphor can be done by the most widely used slurry method, a conformal method that applies uniformly to all surfaces of the LED, or a remote method.

As another example, the 620 nm wavelength emitting LED or the 660 nm wavelength emitting LED is applied by applying a blue phosphor or a red phosphor, respectively, to a UV LED that emits a near-ultraviolet wavelength (e.g., 320 to 390 nm), or by applying a blue phosphor, a red phosphor, and a green phosphor. It can also be formed by applying them in combination at different ratios.

As shown in FIGS. 1 and 2, the LED lighting device 100 for pest extermination according to an embodiment of the present invention further includes a camera module 160 that collects images by photographing the state of pest extermination. .

The control unit 140 controls the first or second light emitting unit based on the status image of pest extermination collected by the camera module 160.

For example, the camera module 160 collects images by photographing the pest control status centered on the pest extermination area.

The control unit 140 can determine the pest extermination status by analyzing the images collected from the camera module 160, and controls the first and second light emitters on/off so that light of an appropriate wavelength is emitted. This maximizes the pest extermination effect.

As another example, when the camera module 160 captures images of the pest extermination status, the control unit 140 may determine the pest extermination status by analyzing the collected images.

Image collection by photographing the pest extermination status of the camera module 160 may be automatically performed at certain intervals (e.g., every hour), and the pest extermination manager or user may set the image collection period.

As another example, the camera module 160 collects images by photographing whether or not pests have invaded the pest extermination area.

The control unit 140 determines whether pests exist by analyzing pre-stored pest extermination status images and the collected pest extermination images. For example, if it is determined that pests have invaded, the first light emitting unit and the second light emitting unit 140 The 620nm wavelength emitting LED and 660nm wavelength emitting LED included in the light emitting part are integrated and controlled to avoid pests.

In general, pests prefer light in the 400 to 450 nm wavelength band and have the characteristic of mainly avoiding light in the 580 to 650 nm wavelength band.

Using these characteristics, it is possible to prevent pests from approaching by cross-mounting LEDs that emit from a wavelength of 590 nm, which is close to yellow light, and LEDs that emit a wavelength of 660 nm, which is close to red light, together. Emission of each of these wavelengths can be achieved through LEDs formed by appropriately applying the above-described red phosphor.

As shown in FIGS. 1 and 2, the LED lighting device 100 for exterminating pests according to an embodiment of the present invention includes a wavelength detection sensor 170 that detects the wavelength of light emitted from the light emitting unit 130. ) further includes.

The control unit 140 corrects the status image of pest extermination collected by the camera module 160 according to the wavelength of light detected by the wavelength detection sensor 170.

The light emitting unit 130 according to each embodiment of the present invention radiates a wavelength having a specific color, rather than white light, to the pest extermination area, so the images captured and collected by the camera module 160 are accurate for the pest extermination status. cannot be displayed.

Therefore, if the image of the state of pest extermination collected by the camera module 160 is corrected according to the wavelength of light detected by the wavelength detection sensor 170, the actual state of pest extermination can be accurately determined through the corrected image. , appropriate control of the light emitting unit 130 can be achieved according to the status of pest extermination.

The LED lighting device 100 for pest extermination according to an embodiment of the present invention further includes a temperature sensor 180 that measures the temperature of the pest extermination space.

The control unit 140 controls the first or second light emitting unit based on the temperature measured by the temperature sensor 180.

Therefore, when controlling the operation of the first or second light emitting units according to an embodiment of the present invention, it is desirable to control the operation in conjunction with the internal temperature.

Sensing by the camera module 160, wavelength detection sensor 170, and temperature sensor 180 and control of the first light emitting unit and the second light emitting unit according to the state of tomato pest extermination by the control unit 140 are automatically performed. Therefore, a stable pest extermination process can be achieved.

The present invention according to another embodiment is a condenser lens that allows the wavelength (light) emitted from the first light emitting unit and the second light emitting unit to reach the radiating end of the light emitting unit 130 only within the range of the pest extermination area. It further includes (190).

The shape of the condenser lens 190 can be changed depending on the shape of the pest extermination area. For example, it is configured to fit the general rectangular shape inside a camping tent so that the light emitted from the first and second light emitters is used. It is controlled to radiate only inside the pest extermination area.

In the above, the present invention has been described in detail with reference to specific examples, but the examples are merely examples to make the present invention easier to understand, so substitutions, additions, and modifications may be made without departing from the technical spirit of the present invention. The embodiments will also be said to fall within the scope of protection of the present invention as defined by the following claims.

100: Spectrum variable LED lighting device for medicinal hemp cultivation
130: light emitting unit
110: first light emitting unit
120: second light emitting unit
140: control unit
160: Camera module
170: Wavelength detection sensor
180: temperature sensor
190: condenser lens

Claims (8)

a light emitting unit composed of a first light emitting unit and a second light emitting unit each made of a 620nm wavelength emitting LED and a 660nm wavelength emitting LED; and
A control unit that manages the pest extermination area by controlling the light emitting unit and controls each LED included in the first or second light emitting unit to be turned on/off/dimmed based on a preset pest extermination mode. A spectrum-variable LED lighting device for cultivating medicinal cannabis, characterized by:
According to paragraph 1,
The preset pest extermination mode is automatically controlled by the user through a program,
The mode is controlled so that all LEDs of the first light emitting unit and the second light emitting unit are turned on/off/dimmed at the same time, or
A spectrum variable LED lighting device for cultivating medicinal cannabis, characterized in that all LEDs of the first light emitting unit and the second light emitting unit are controlled to be turned on/off/controlled simultaneously or sequentially, respectively.
According to paragraph 1,
A spectrum variable LED lighting device for cultivating medicinal cannabis, characterized in that the first light emitting unit or the second light emitting unit is controlled by a PWM (Pulse Width Modulation) method.
According to paragraph 1,
The light emitting unit includes two or more first light emitting units,
A spectrum-variable LED lighting device for cultivating medicinal cannabis, characterized in that the 620nm wavelength emission LED and the 660nm wavelength emission LED of each first light emitting part are formed by applying different amounts of red phosphor to one blue region wavelength emission LED. .
According to paragraph 1,
It further includes a camera module that collects images by photographing the state of pest extermination,
The control unit controls the first light emitting unit or the second light emitting unit based on the status image of pest extermination collected by the camera module.
According to clause 5,
It further includes a wavelength detection sensor that detects the wavelength of light emitted from the light emitting unit,
The control unit is a spectrum variable LED lighting device for cultivating medicinal cannabis, characterized in that it corrects the status image of pest extermination collected by the camera module according to the wavelength of light detected by the wavelength detection sensor.
According to paragraph 1,
It further includes a temperature sensor that measures the temperature of the pest extermination space,
The control unit is a spectrum variable LED lighting device for cultivating medicinal cannabis, characterized in that it controls the first light emitting unit or the second light emitting unit based on the temperature measured by the temperature sensor.
According to paragraph 1,
Spectrum variable medicinal hemp cultivation, characterized in that it further comprises a condenser lens at the radiating end of the light emitting unit that allows the light emitted from the first light emitting unit and the second light emitting unit to reach only within the range of the pest extermination area. LED lighting device.