JP2023069097A - Plant growing light source device - Google Patents

Abstract

To provide a plant growth light source device capable of reducing power consumption.SOLUTION: A first light emitting element 11 emits red light. A second light emitting element 12 emits blue light. A control means 70 causes the first light emitting element 11 and the second light emitting element 12 to light up. The control means 70 adjusts the light emission brightness of the first light emitting element 11 and the light emission brightness of the second light emitting element 12 individually. An operation unit 50 outputs luminance adjustment signals S1 and S2 for adjusting the light emission brightness of the first light emitting element 11 and the light emission brightness of the second light emitting element 12 to the control means 70.SELECTED DRAWING: Figure 1

Description

The present invention relates to a plant growing light source device that irradiates plants such as vegetables and fresh flowers with light using light emitting elements such as light emitting diodes (LEDs).

2. Description of the Related Art Conventionally, various plant growing light source devices have been proposed that irradiate plants with artificial light emitted by light emitting elements as an alternative to sunlight. Such a plant-growing light source device irradiates plants such as vegetables and fresh flowers with artificial light emitted by light-emitting elements to cultivate the plants. lamps, high-pressure sodium lamps, fluorescent lamps, light-emitting diodes, etc. The plant-growing light source device has the advantage of being able to grow plants stably without being affected by the weather.

JP-A-2-60525 Japanese Patent Application Laid-Open No. 2002-281830 JP 2016-140353 A

However, since the light emitting element consumes a large amount of electric power, there is a problem that the cost of electricity becomes high, and the cost of the plant cultivated by the plant growing light source device becomes high. The plant growth light source devices disclosed in Patent Documents 2 and 3 use light-emitting diodes as light-emitting elements, and thus consume less power than fluorescent lamps or the like. A further reduction in power consumption is required.
The present invention has been made in view of this problem, and provides a plant growing light source device capable of reducing power consumption.

In order to solve the above problems, the present invention provides first light emitting elements 11 and 111 that emit red light, second light emitting elements 12 and 112 that emit blue light, first light emitting elements 11 and 111, and Plant growing light source devices A and B comprising control means 70 and 170 for lighting the second light emitting elements 12 and 112, wherein the control means 70 and 170 control It is characterized in that the light emission luminance and the light emission luminance of the second light emitting elements 12 and 112 are individually adjusted.

Further, according to the present invention, the operation unit 50 outputs luminance adjustment signals S1 and S2 for individually adjusting the light emission luminance of the first light emitting element 11 and the light emission luminance of the second light emitting element 12 to the control means 70. is further provided.

Moreover, the present invention is characterized by further comprising third light emitting elements 13 and 113 that emit white light.

Moreover, the present invention is characterized in that the control means 70 and 170 adjust the light emission luminance of the third light emitting elements 13 and 113 .

Moreover, the present invention is characterized by further comprising a fourth light emitting element 114 that emits infrared rays.

Moreover, the present invention is characterized in that the control means 170 adjusts the light emission luminance of the fourth light emitting element 114 .

Further, the present invention is characterized in that the control means 170 individually turns on/off the first light emitting element 111 and the second light emitting element 112 based on timer setting.

Further, the present invention is characterized in that the control means 170 adjusts the light emission brightness of the first light emitting element 111 and the second light emitting element 112 based on the climate zone setting.

Moreover, the present invention is characterized in that the control means 170 adjusts the light emission brightness of the first light emitting element 111 and the second light emitting element 112 based on the seasonal setting.

Moreover, the present invention is characterized by further comprising an imaging camera 190 .

Moreover, the present invention is characterized by further comprising a wireless communication section 180 for wirelessly transmitting image data captured by the imaging camera 190 .

Further, the present invention is characterized in that the first light emitting elements 11 and 111 are light emitting diodes having a peak wavelength of 610 nm to 830 nm.

Further, the present invention is characterized in that the second light emitting elements 12 and 112 are light emitting diodes having a peak wavelength of 420 nm to 500 nm.

A color rendering index (Ra) of the third light emitting element 13 is 80 or more.

The emission brightness of the first light emitting elements 11 and 111 and the emission brightness of the second light emitting elements 12 and 112 can be individually adjusted, and power consumption can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The external view which shows 1st embodiment of this invention. The enlarged view of the light emission part which shows embodiment same as the above. The enlarged view of the operation part which shows embodiment same as the above. The block diagram which shows embodiment same as the above. The external view which shows 2nd embodiment of this invention. The enlarged view of the light emission part which shows embodiment same as the above. Screen explanatory drawing of the smart phone which shows embodiment same as the above. Screen explanatory drawing of the smart phone which shows embodiment same as the above. Screen explanatory drawing of the smart phone which shows embodiment same as the above. The block diagram which shows embodiment same as the above.

An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a first embodiment in which the present invention is applied to a plant growing light source device A. FIG. The plant growing light source device A includes a light source section 10, an arm section 20, a post section 30, a pedestal section 40, an operation section 50, a push button switch 60, and a control section 70, and various kinds of light are applied to plants such as vegetables and fresh flowers. is irradiated to grow the plant.

The light source unit 10 has red light emitting diodes 11, blue light emitting diodes 12, and white light emitting diodes 13 arranged in a matrix. The red light emitting diode 11 emits red light with a peak wavelength of 740 nm. The blue light emitting diode 12 emits blue light with a peak wavelength of 480 nm. The white light emitting diode 13 emits white light and has a color rendering index (Ra) of "85". The light source unit 10 has a substantially hemispherical appearance and is supported by the arm unit 20 .

The arm part 20 has a rod shape with a rectangular cross section, one end of which is supported by the supporting post part 30 in an angle-adjustable state, and the other end of which supports the light source part 10 in an angle-adjustable state. The support 30 has a bar shape with a rectangular cross section, one end of which is fixed to the pedestal 40, and the other end of which supports the arm 20 in an angle-adjustable manner. The pedestal portion 40 has an arch shape, and the support portion 30 is fixed thereto. A power cord (not shown) is connected to the base portion 40 .

The control unit 70 has a microcomputer 71 and a drive circuit 72 . The microcomputer 71 has a CPU (Central Processing Unit) 71a, a volatile memory 71b, and a nonvolatile memory 71c. Diode 12 and white light emitting diode 13 are turned on. The drive circuit 72 has an LED driver 72a that drives the red light emitting diode 11, an LED driver 72b that drives the blue light emitting diode 12, and an LED driver 72c that drives the white light emitting diode 13. 11, driving the blue light emitting diode 12 and the white light emitting diode 13;

The operating portion 50 and the push button switch 60 are provided on the base portion 40 . The push button switch 60 turns on/off the main power source of the plant growing light source device A, and outputs a main power source signal S4 to the control section 70 . The operation unit 50 includes a red adjustment unit 51 that adjusts the emission brightness of the red light emitting diode 11, a blue adjustment unit 52 that adjusts the emission brightness of the blue light emitting diode 12, and a white adjustment unit that adjusts the emission brightness of the white light emitting diode 13. 53 and .

The red color adjustment section 51 is composed of a knob 51a and a slide volume 51b, outputs a brightness adjustment signal S1 to the control section 70, and adjusts the emission brightness of the red light emitting diode 11 within a range of 0% to 100%. The blue adjusting section 52 is composed of a knob 52a and a slide volume 52b, outputs a brightness adjusting signal S2 to the control section 70, and adjusts the emission brightness of the blue light emitting diode 12 within a range of 0% to 100%. The white adjustment section 53 is composed of a knob 53a and a slide volume 53b, outputs a luminance adjustment signal S3 to the control section 70, and adjusts the emission luminance of the white light emitting diode 13 within a range of 0% to 100%.

Each slide volume 51b, 52b, 53b consists of a variable resistor, and the electric resistance value which changes by sliding each knob 51a, 52a, 53a becomes the brightness adjustment signals S1, S2, S3. S 1 , S 2 and S 3 are input to the microcomputer 71 . The microcomputer 71 outputs PWM (Pulse Width Modulation) signals to the LED drivers 72a, 72b, and 72c according to the luminance adjustment signals S1, S2, and S3, and controls the red light emitting diode 11, the blue light emitting diode 12, and the white light emitting diode 13. Adjust the brightness of the emitted light.

The user of the plant growing light source device A slides the knobs 51a, 52a, 53a to adjust the light emission luminance of the red light emitting diode 11, the blue light emitting diode 12, and the white light emitting diode 13 from 0% to 100%, respectively. Range can be adjusted.

When growing plants, it is desirable to set the emission brightness of the white light emitting diode 13 to "0 (zero)" and use only the red light and blue light emitted by the red light emitting diode 11 and the blue light emitting diode 12 . Since the green light contained in the white light hardly contributes to the growth of plants, by turning off the white light emitting diode 13, the plants can be grown efficiently and the power consumption can be reduced. .

Also, by alternately lighting the red light emitting diode 11 and the blue light emitting diode 12, it is possible to promote plant growth while reducing power consumption. For example, only the red light emitting diode 11 is lit from 6:00 to 18:00, and only the blue light emitting diode 12 is lit from 18:00 to 6:00 the next day. As compared with the case of lighting the light emitting diodes 12, it is possible to promote plant growth while reducing power consumption.

When observing plants, it is desirable to set the emission brightness of the red light emitting diode 11 and the blue light emitting diode 12 to "0 (zero)" and use only the white light emitted by the white light emitting diode 13 . This is because the original colors of plants cannot be observed when red light and blue light are strong. In particular, when viewing and enjoying fresh flowers, it is desirable to use only the white light emitted by the white light emitting diode 13 so that the original color of the fresh flowers can be visually recognized.

5 to 9 show a second embodiment. The plant growing light source device B includes a light source section 110 , an arm section 120 , a post section 130 , a pedestal section 140 , a push button switch 160 , a control section 170 , a wireless communication section 180 , an imaging camera 190 and a temperature sensor 200 .

The light source section 110 has a red light emitting diode 111 , a blue light emitting diode 112 , a white light emitting diode 113 and an infrared light emitting diode 114 . The red light emitting diode 111 emits red light with a peak wavelength of 770 nm. The blue light emitting diode 112 emits blue light with a peak wavelength of 480 nm. The white light emitting diode 113 emits white light and has a color rendering index (Ra) of "85". The infrared light emitting diode 114 emits infrared rays with a peak wavelength of 2.5 μm.

The arm part 120 has a rod shape with a rectangular cross section, one end of which is supported by the post part 130 in an angle-adjustable state, and the other end of which supports the light source part 110 in an angle-adjustable state. The support section 130 has a bar shape with a rectangular cross section, one end of which is fixed to the pedestal section 140, and the other end of which supports the arm section 120 in an angle-adjustable state. An imaging camera 190 and a temperature sensor 200 are provided on the support 130 . The pedestal portion 140 has an arch shape, and the support portion 130 is fixed thereto. A power cord (not shown) is connected to the base portion 140 .

The push button switch 160 is fixed to the base portion 140 . The push button switch 160 turns on/off the main power source of the plant growing light source device B, and outputs a main power source signal S5 to the control section 170 . The wireless communication section 180 is for connecting the plant growing light source device B to the Internet via Wi-Fi (registered trademark), and is provided on the base section 140 .

The image capturing camera 190 captures an image of the plant grown by the plant growing light source device B, and outputs image data S7 to the control section 170 . The control unit 170 wirelessly transmits the imaging data S7 from the wireless communication unit 180 to the smartphone C via the Internet. The temperature sensor 200 detects the temperature in the vicinity of the plant growing light source device B and outputs temperature data S8 to the control section 170 . The temperature detected by the temperature sensor 200 is displayed on the touch panel 150 of the smartphone C. FIG.

The control unit 170 has a microcomputer 171 and a drive circuit 172 . The microcomputer 171 has a CPU 171a, a volatile memory 171b, and a non-volatile memory 171c. 113, turn on the infrared light emitting diode 114;

The driving circuit 172 includes an LED driver 172a that drives the red light emitting diode 111, an LED driver 172b that drives the blue light emitting diode 112, an LED driver 172c that drives the white light emitting diode 113, and an LED driver that drives the infrared light emitting diode 114. and a driver 172d. The microcomputer 171 outputs PWM signals to the LED drivers 172a, 172b, 172c, and 172d according to the operation of the smartphone C, causing the red light emitting diode 111, the blue light emitting diode 112, the white light emitting diode 113, and the infrared light emitting diode 114 to emit light. Adjust brightness.

On the touch panel 150, a red adjustment image 151 for adjusting the emission brightness of the red light emitting diode 111, a blue adjustment image 152 for adjusting the emission brightness of the blue light emitting diode 112, and a white adjustment image for adjusting the emission brightness of the white light emitting diode 113 are displayed. 153, an infrared adjustment image 154 for adjusting the emission brightness of the infrared light emitting diode 114, an image 156 captured by the imaging camera 190, a temperature 157 in the vicinity of the plant growing light source device B, and a menu icon 158 are displayed. be.

The red adjustment image 151 has an image 151a imitating a knob, an image 151b imitating a slide volume, and an image 151c of numbers indicating adjustment values. The blue adjustment image 152 has an image 152a imitating a knob, an image 152b imitating a slide volume, and an image 152c of numbers indicating adjustment values. The white adjustment image 153 has an image 153a imitating a knob, an image 153b imitating a slide volume, and an image 153c of numbers indicating adjustment values. The infrared adjustment image 154 has an image 154a simulating a knob, an image 154b simulating a slide volume, and an image 154c of numbers indicating adjustment values.

The user of the plant growing light source device B slides the images 151a, 152a, 154a, and 155a imitating knobs on the touch panel 150 to display the red light emitting diode 111, the blue light emitting diode 112, the white light emitting diode 113, and the infrared light emitting diode. The light emission brightness of the light emitting diodes 114 can be adjusted in the range of 0% to 100%.

FIG. 8 shows another example of display by the touch panel 150 of the smart phone C. As shown in FIG. On the touch panel 150, a timer setting image 211 for the red light emitting diode 111, a timer setting image 212 for the blue light emitting diode 112, a timer setting image 213 for the white light emitting diode 113, a timer setting image 214 for the infrared light emitting diode 114, is displayed.

The user of the plant growing light source device B turns on/off the red light emitting diode 111, the blue light emitting diode 112, the white light emitting diode 113, and the infrared light emitting diode 114 by touching the timer setting images 211, 212, 213, and 214. Set the off time respectively.

Before germination of the plant, it is desirable to turn off the red light emitting diode 111, the blue light emitting diode 112, and the white light emitting diode 113 and use only the infrared rays emitted by the infrared light emitting diode 114 to promote germination. This is because photosynthesis cannot be performed without plant leaves, so it is useless to turn on the red light emitting diode 111, the blue light emitting diode 112, and the white light emitting diode 113.

Also, by alternately lighting the red light emitting diodes 111 and the blue light emitting diodes 112, it is possible to promote plant growth while reducing power consumption. For example, only the red light emitting diode 111 is lit from 6:00 to 18:00, and only the blue light emitting diode 112 is lit from 18:00 to 6:00 the next day, thereby reducing power consumption and growing plants. can be promoted.

When observing plants, it is desirable to set the emission brightness of the red light emitting diode 111, the blue light emitting diode 112, and the infrared light emitting diode 114 to "0 (zero)" and use only the white light emitted by the white light emitting diode 113. This is because the original colors of plants cannot be observed when red light and blue light are strong. In particular, it is desirable to use only the white light emitted by the white light emitting diode 113 when viewing and enjoying fresh flowers, or when checking the state of a plant using an image captured by the imaging camera 190 .

Application software programmed with light emission patterns for each climate zone is installed in the smartphone C, and the user of the plant growing light source device B can also select a light emission pattern suitable for the plant to be grown. As shown in FIG. 9 , the touch panel 150 displays a climate zone selection image 251 for selecting a climate zone, a weatherability selection image 252 for selecting weatherability, and a menu icon 158 . The climate zone selection image 251 is an image for selecting a climate zone from "tropical", "temperate", "subarctic", and "alpine climate". In particular, when the "temperate zone" is selected, the season can be set, and the season can be selected from among "spring", "summer", "autumn" and "winter". The day-friendly selection image 252 is an image for selecting day-friendly from "day-friendly" and "half-day-negative".

The user of the plant growing light source device B selects the climatic zone and favorable weather conditions suitable for the plant to grow on the touch panel 150 . For example, when growing tropical orchids, select “tropical” in the climate zone selection image 251 and select “half-day negative” in the heliopathy selection image 252 . Further, for example, when growing vegetables in the same conditions as in Japan, select "temperate zone" in the climate zone selection image 251 and the season at that time, and select "day favorable" in the weather favorable selection image 252. .

According to the first and second embodiments, plants such as vegetables and fresh flowers can be grown indoors regardless of the weather. In addition, power consumption of the plant growing light source devices A and B can be reduced by turning off unnecessary light emitting elements in accordance with the type of plant and growing method.

The present invention is not limited to the first and second embodiments, and various modifications are possible. For example, the operation unit 50 of the first embodiment uses slide volumes 51b, 52b, and 53b, but the operation unit 50 may also use rotary volume, or increase/decrease brightness. The brightness adjustment signal may be output by a push button for operating the .

11 red light emitting diode (first light emitting element)
12 blue light emitting diode (second light emitting element)
13 white light emitting diode (third light emitting element)
50 operation unit 70 control unit (control means)
111 red light emitting diode (first light emitting element)
112 blue light emitting diode (second light emitting element)
113 white light emitting diode (third light emitting element)
114 infrared light emitting diode (fourth light emitting element)
170 control unit (control means)
180 wireless communication unit 190 imaging camera A plant growth light source device B plant growth light source device C smart phone

Claims (14)

A plant growing light source device comprising a first light emitting element that emits red light, a second light emitting element that emits blue light, and control means for lighting the first light emitting element and the second light emitting element There is
The plant growing light source device, wherein the control means individually adjusts the light emission luminance of the first light emitting element and the light emission luminance of the second light emitting element. 2. The apparatus according to claim 1, further comprising an operation unit for outputting a luminance adjustment signal for individually adjusting the light emission luminance of said first light emitting element and the light emission luminance of said second light emitting element to said control means. The plant-growing light source device described. 3. The plant growing light source device according to claim 1, further comprising a third light emitting element that emits white light. 4. The plant growing light source device according to claim 3, wherein said control means adjusts the light emission luminance of said third light emitting element. 5. The plant growing light source device according to claim 1, further comprising a fourth light emitting element that emits infrared rays. 6. The plant growing light source device according to claim 5, wherein said control means adjusts the light emission luminance of said fourth light emitting element. 7. The apparatus according to any one of claims 1 to 6, wherein the control means individually turns on/off the first light emitting element and the second light emitting element based on timer setting. Plant growing light source device. 8. The plant according to any one of claims 1 to 7, wherein the control means adjusts the light emission brightness of the first light emitting element and the second light emitting element based on climate zone setting. Growing light source device. 9. The plant growing method according to any one of claims 1 to 8, wherein the control means adjusts the light emission brightness of the first light emitting element and the second light emitting element based on seasonal setting. Light source device. 10. The plant growing light source device according to any one of claims 1 to 9, further comprising an imaging camera. 11. The plant growing light source device according to claim 10, further comprising a wireless communication section for wirelessly transmitting imaging data captured by said imaging camera. 12. The plant growing light source device according to claim 1, wherein the first light emitting element is a light emitting diode having a peak wavelength of 610 nm to 830 nm. 13. The plant growing light source device according to claim 1, wherein the second light emitting element is a light emitting diode having a peak wavelength of 420 nm to 500 nm. 14. The plant growing light source device according to any one of claims 1 to 13, wherein the third light emitting element has a color rendering index (Ra) of 80 or more.

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