Full-spectrum LED plant illumination system with adjustable light quality and light intensity and uniform illumination

Abstract

The utility model relates to the technical field of intelligent breeding acceleration equipment, in particular to a full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination, which comprises an LED light source module, a control unit, a driving unit and a power supply module, the LED light source module comprises LED lamp beads and a PCB aluminum substrate, bonding pads of the LED lamp beads are arranged on the PCB aluminum substrate in a matrix mode, and the LED lamp beads comprise single-color lamp beads and white-light lamp beads which are arranged on the bonding pads arranged on the PCB aluminum substrate. The control unit comprises an addressing device and a control chip, the addressing device is used for inputting dimming parameters to the corresponding control chip, and the control chip is used for decoding the dimming parameters to generate a control signal and inputting the control signal to the corresponding driving unit; the driving unit is used for controlling the brightness of LED lamp beads in the LED light source module; and the power supply module is used for supplying power to the LED light source module, the control unit and the driving unit. According to the full-spectrum LED plant lighting system, by optimizing the arrangement mode of the single-color lamp beads, the illumination is more uniform, and adaptive adjustment of light quality and light intensity can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent breeding acceleration equipment, and in particular to a full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination. Background Art

[0002] Light is the energy source for photosynthesis in plants and influences all aspects of plant growth, development, morphological formation, and metabolism. The "three elements" of light quality, light intensity, and photoperiod are the primary factors influencing plant growth and development. LED light sources, with their advantages of energy efficiency, spectral tunability, long lifespan, and compactness and flexibility, have become widely used as the primary artificial light source in plant lighting. Plant photoculture can achieve optimal light conditions for plant growth by adjusting these three elements of LED light sources, thereby shortening plant growth cycles or increasing plant yields.

[0003] Different plants have different requirements for light quality, light intensity and photoperiod at different growth stages, so it is very important to establish a light environment that can be dynamically adjusted. At present, most of the existing LED plant lighting fixtures have a fixed spectrum, that is, the brightness of the LED lamp beads does not change, the lamp spectrum is constant, or the overall brightness of the lamp is infinitely adjusted by a knob, which cannot meet the precise requirements of different light qualities and light intensities throughout the growth cycle. Such lamps are very likely to cause energy waste or disrupt the lighting pattern of plants. In addition, in existing LED plant lighting fixtures, the monochromatic lamp beads are often evenly arranged, and the uniformity of the monochromatic light is limited. Figure 3 shown.

[0004] In summary, given the different requirements of different plants for light quality and light intensity at different growth stages, and the limited uniformity of monochromatic light from existing LED plant lighting fixtures, there is an urgent need to develop a full-spectrum LED plant lighting system with adjustable light quality and intensity and uniform illumination. Utility Model Content

[0005] The purpose of this utility model is to provide a full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination in response to the existing technical status. The full-spectrum LED plant lighting system optimizes the arrangement of monochromatic lamp beads to make its illumination more uniform and can achieve adaptive adjustment of light quality and light intensity.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination, comprising an LED light source module, a control unit, a drive unit, and a power supply module;

[0008] The LED light source module includes LED lamp beads and a PCB aluminum substrate. The PCB aluminum substrate is provided with solder pads for LED lamp beads in a matrix. The number of solder pads is 840 and the number of rows is 6. The LED lamp beads include monochromatic lamp beads with center wavelengths of 395nm, 450nm, 660nm, and 730nm, and white light lamp beads with a color temperature of 3000K. The monochromatic lamp beads and white light lamp beads are arranged one by one on the solder pads provided on the PCB aluminum substrate, wherein:

[0009] In the 1st, 3rd, and 5th rows of pads on the PCB aluminum substrate, the monochromatic lamp beads with a center wavelength of 395nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the starting position of the monochromatic lamp beads with a center wavelength of 395nm is the second pad. In any group, there are 4 pads between adjacent monochromatic lamp beads.

[0010] In the 2nd and 5th rows of the solder pads on the PCB aluminum substrate, the monochromatic lamp beads with a central wavelength of 450nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the starting position of the monochromatic lamp beads with a central wavelength of 450nm is the first solder pad. In any group, there are 4 solder pads between adjacent monochromatic lamp beads.

[0011] In the 1st, 3rd, 4th and 6th rows of solder pads on the PCB aluminum substrate, the monochromatic lamp beads with a central wavelength of 660nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the starting position of the monochromatic lamp beads with a central wavelength of 660nm is the 4th solder pad. In any group, there are 4 solder pads between adjacent monochromatic lamp beads.

[0012] In the 2nd, 4th, and 6th rows of solder pads on the PCB aluminum substrate, the monochromatic lamp beads with a center wavelength of 730nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the starting position of the monochromatic lamp beads with a center wavelength of 730nm is the 3rd solder pad. In any group, there are 4 solder pads between adjacent monochromatic lamp beads.

[0013] In each row of pads on the PCB aluminum substrate, white light beads are filled and arranged on the pads where single-color light beads are not arranged;

[0014] The control unit includes an addresser and a control chip. The addresser is used to input the dimming parameters to the corresponding control chip. The control chip is used to decode the dimming parameters and generate a control signal, which is input to the corresponding driving unit.

[0015] The driving unit is a driving chip, which is used to control the brightness of the LED lamp beads in the LED light source module;

[0016] The power supply module is used to supply power to the LED light source module, the control unit and the driving unit.

[0017] Furthermore, it also includes a shell profile, in which the power module, the control unit, the drive unit and the LED light source module are all arranged.

[0018] Furthermore, the shell profile is a fin-shaped aluminum heat dissipation profile.

[0019] Furthermore, the driving unit and the control unit are fully encapsulated in a wire trough box inside the shell profile using epoxy resin glue potting material.

[0020] Furthermore, the LED lamp beads are all SMD lamp beads.

[0021] Furthermore, the PCB aluminum substrate and the LED lamp beads are sprayed with three-proof paint.

[0022] Furthermore, the addressing device is a DMX handheld addressing device.

[0023] Furthermore, the power module is provided with dustproof and waterproof components, and the protection grade is IP67.

[0024] The beneficial effects of the utility model are:

[0025] 1. After optimizing the arrangement of the monochromatic lamp beads, the uniformity of the monochromatic light is 88% at a distance of 20cm from the light receiving surface and a receiving surface of 900cm×250cm, which is about 6% higher than the common uniform arrangement on the market.

[0026] 2. According to the different light environment requirements of plants at different growth stages, the target light quality and light intensity can be precisely controlled by inputting dimming parameters through the addresser, thus ensuring that plants grow in the optimal light environment;

[0027] 3. Full-spectrum LED plant lighting fixtures with adjustable light quality and intensity can meet the different light environment requirements of different plants throughout their growth period, saving the manpower and material costs of purchasing multiple spectrum lamps or frequently replacing lamps;

[0028] 4. The wavelength range of LED lamp beads covers all wavelengths required for plant growth and development. It can be applied to the needs of different plants at different growth stages or to study the effects of different spectra on plant growth and development. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a control logic schematic diagram of a full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination.

[0030] Figure 2This is a diagram of the arrangement of lamp beads for a full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination.

[0031] Figure 3 This is one of the common LED plant lighting arrangements on the market.

[0032] Figure 4 This is a relative radiation spectrum diagram of the LED lamp beads used in the full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination in the utility model;

[0033] Figure 5 This is a relative radiation spectrum diagram of two spectra generated by a full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific examples described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] See also Figures 1 and 2 As shown, a full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination includes an LED light source module, a control unit, a drive unit and a power supply module.

[0036] The LED light source module includes LED lamp beads and a PCB aluminum substrate. The PCB aluminum substrate is provided with solder pads for LED lamp beads in a matrix. There are 840 solder pads and 6 rows. The LED lamp beads include monochrome lamp beads with central wavelengths of 395nm, 450nm, 660nm, and 730nm, and white light lamp beads with a color temperature of 3000K. The monochrome lamp beads and white light lamp beads are arranged one by one on the solder pads on the PCB aluminum substrate.

[0037] Preferably, the LED lamp beads are all SMD lamp beads (LED lamp beads manufactured using surface mount technology SMT), and the PCB aluminum substrate and the LED lamp beads are sprayed with three-proof paint (dust-proof, waterproof, and corrosion-resistant) with a thickness of 30-50μm.

[0038] See also Figure 2 As shown, the arrangement of monochrome lamp beads and white light lamp beads on the PCB aluminum substrate is as follows:

[0039] In the 1st, 3rd, and 5th rows of pads on the PCB aluminum substrate, the monochromatic lamp beads with a center wavelength of 395nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the starting position of the monochromatic lamp beads with a center wavelength of 395nm is the second pad. In any group, there are 4 pads between adjacent monochromatic lamp beads.

[0040] In the 2nd and 5th rows of the solder pads on the PCB aluminum substrate, the monochromatic lamp beads with a central wavelength of 450nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the starting position of the monochromatic lamp beads with a central wavelength of 450nm is the first solder pad. In any group, there are 4 solder pads between adjacent monochromatic lamp beads.

[0041] In the 1st, 3rd, 4th and 6th rows of solder pads on the PCB aluminum substrate, the monochromatic lamp beads with a central wavelength of 660nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the starting position of the monochromatic lamp beads with a central wavelength of 660nm is the 4th solder pad. In any group, there are 4 solder pads between adjacent monochromatic lamp beads.

[0042] In the 2nd, 4th, and 6th rows of solder pads on the PCB aluminum substrate, the monochromatic lamp beads with a center wavelength of 730nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the starting position of the monochromatic lamp beads with a center wavelength of 730nm is the 3rd solder pad. In any group, there are 4 solder pads between adjacent monochromatic lamp beads.

[0043] In each row of solder pads on the PCB aluminum substrate, white light beads are filled and arranged on the solder pads where the single-color lamp beads are not arranged.

[0044] According to the above design, the number of monochrome lamp beads with central wavelengths of 395nm, 450nm, 660nm, and 730nm and the number of white light lamp beads with a color temperature of 3000K are 42, 28, 56, 42, and 672 respectively, with a total of 840.

[0045] The control unit includes an addresser and a control chip. The addresser inputs dimming parameters to the corresponding control chip, which decodes the dimming parameters to generate a control signal, which is then input to the corresponding drive unit. Specifically, the addresser encodes the RS485 differential signal and transmits it to the corresponding control chip. The control chip decodes the signal and outputs a PWM pulse-width modulation signal to the corresponding drive unit.

[0046] Among them, the RS485 differential signal protocol is used to transmit control signal data, supports parallel connection of lamps, and is safe and reliable, has strong anti-interference ability, and has a long transmission distance.

[0047] Illustratively, in this embodiment, the addresser is a DMX handheld addresser.

[0048] The driver unit is a driver chip that controls the brightness of the LED lamp beads in the LED light source module. Specifically, the driver chip controls the brightness of the LED lamp beads by adjusting the current on and off cycle and duration of the corresponding LED lamp beads.

[0049] The power module supplies power to the LED light source module, the control unit and the drive unit. Preferably, the power module is provided with a dustproof and waterproof component with a protection grade of IP67.

[0050] Illustratively, in this embodiment, the power supply module converts 220V AC power into 48V low-voltage DC power to power the LED light source module, the control unit, and the drive unit.

[0051] The above technical solution also includes a shell profile, and the power module, control unit, drive unit and LED light source module are all arranged in the shell profile.

[0052] For example, in this embodiment, the shell profile is a fin-type aluminum heat dissipation profile, which dissipates the heat generated by the power module, control unit, drive unit and LED light source module during operation, ensuring that each module and unit operates at a normal temperature; the drive unit and control unit are fully encapsulated in a wire trough box inside the shell profile using epoxy resin glue potting material, and the size of the wire trough box is 20cm*5cm*4cm.

[0053] More specifically, the relative radiation spectrum of the LED lamp beads used in the full-spectrum LED plant lighting system is as follows: Figure 4 The relative radiation spectrum of the two spectra generated by the full-spectrum LED plant lighting system is shown as follows: Figure 5 .

[0054] In general, the advantages of the present invention are as follows:

[0055] 1. After optimizing the arrangement of the monochromatic lamp beads, the uniformity of the monochromatic light is 88% at a distance of 20cm from the light receiving surface and a receiving surface of 900cm×250cm, which is about 6% higher than the common uniform arrangement on the market.

[0056] 2. According to the different light environment requirements of plants at different growth stages, the target light quality and light intensity can be precisely controlled by inputting dimming parameters through the addresser, thus ensuring that plants grow in the optimal light environment;

[0057] 3. Full-spectrum LED plant lighting fixtures with adjustable light quality and intensity can meet the different light environment requirements of different plants throughout their growth period, saving the manpower and material costs of purchasing multiple spectrum lamps or frequently replacing lamps;

[0058] 4. The wavelength range of LED lamp beads covers all wavelengths required for plant growth and development. It can be applied to the needs of different plants at different growth stages or to study the effects of different spectra on plant growth and development.

[0059] In addition, it should be noted that this full-spectrum LED plant lighting system is a key R&D project in Hubei Province. The project information is as follows:

[0060] Project Name: Research and Development of Plant Intelligent Accelerated Breeding Equipment;

[0061] Category: Agriculture and rural areas;

[0062] Project number: 2022BBA0074.

[0063] The present invention is not limited to the above-mentioned specific implementation methods. Those skilled in the art can implement the present invention in a variety of other specific implementation methods based on the contents disclosed in the present invention. Therefore, any design that adopts the design structure and ideas of the present invention and makes some simple changes or modifications falls within the scope of protection of the present invention.

Claims

1. A full-spectrum LED plant lighting system with adjustable light quality and intensity and uniform illumination, characterized by: It includes LED light source module, control unit, drive unit and power supply module; The LED light source module includes LED lamp beads and a PCB aluminum substrate. The PCB aluminum substrate is provided with solder pads for LED lamp beads in a matrix. The number of solder pads is 840 and the number of rows is 6. The LED lamp beads include monochromatic lamp beads with center wavelengths of 395nm, 450nm, 660nm, and 730nm, and white light lamp beads with a color temperature of 3000K. The monochromatic lamp beads and white light lamp beads are arranged one by one on the solder pads provided on the PCB aluminum substrate, wherein: In the 1st, 3rd, and 5th rows of pads on the PCB aluminum substrate, the monochromatic lamp beads with a center wavelength of 395nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the monochromatic lamp beads with a center wavelength of 395nm start at the second pad. In any group, there are 4 pads between adjacent monochromatic lamp beads. In the 2nd and 5th rows of pads on the PCB aluminum substrate, the monochromatic lamp beads with a central wavelength of 450nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the monochromatic lamp beads with a central wavelength of 450nm start at the first pad. In any group, there are 4 pads between adjacent monochromatic lamp beads. In the 1st, 3rd, 4th and 6th rows of solder pads on the PCB aluminum substrate, the monochromatic lamp beads with a central wavelength of 660nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the monochromatic lamp beads with a central wavelength of 660nm start at the 4th solder pad. In any group, there are 4 solder pads between adjacent monochromatic lamp beads. In the 2nd, 4th, and 6th rows of solder pads on the PCB aluminum substrate, the monochromatic lamp beads with a center wavelength of 730nm are divided into 6 groups according to the quantity arrangement rule of "3, 2, 2, 2, 2, 3" and are evenly arranged. In each row, the monochromatic lamp beads with a center wavelength of 730nm start at the 3rd solder pad. In any group, there are 4 solder pads between adjacent monochromatic lamp beads. In each row of pads on the PCB aluminum substrate, white light beads are filled and arranged on the pads where single-color light beads are not arranged; The control unit includes an addresser and a control chip. The addresser is used to input the dimming parameters to the corresponding control chip. The control chip is used to decode the dimming parameters and generate a control signal, which is input to the corresponding driving unit. The driving unit is a driving chip, which is used to control the brightness of the LED lamp beads in the LED light source module; The power supply module is used to supply power to the LED light source module, the control unit and the driving unit.

2. The full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination according to claim 1, characterized in that: It also includes a shell profile, in which the power module, the control unit, the drive unit and the LED light source module are all arranged.

3. The full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination according to claim 2, characterized in that: The shell profile is a fin-shaped aluminum heat dissipation profile.

4. The full-spectrum LED plant lighting system with adjustable light quality and intensity and uniform illumination according to claim 2, characterized in that: The drive unit and the control unit are fully encapsulated in a wire trough box inside the shell profile by using epoxy resin glue potting material.

5. The full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination according to claim 1, characterized in that: The LED lamp beads are all SMD lamp beads.

6. The full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination according to claim 1 or 5, characterized in that: The PCB aluminum substrate and the LED lamp beads are sprayed with three-proof paint.

7. The full-spectrum LED plant lighting system with adjustable light quality and light intensity and uniform illumination according to claim 1, characterized in that: The addressing device is a DMX handheld addressing device.

8. The full-spectrum LED plant lighting system with adjustable light quality and intensity and uniform illumination according to claim 1, characterized in that: The power module is equipped with dustproof and waterproof components, and the protection level is IP67.

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