CN219305070U

CN219305070U - LED plant lighting device controlled by sub-channels

Info

Publication number: CN219305070U
Application number: CN202222564176.2U
Authority: CN
Inventors: 吴琎; 苏志强
Original assignee: Beijing Kitten and Puppy Technology Co Ltd
Current assignee: Beijing Kitten and Puppy Technology Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-07-04
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a LED plant lighting device controlled by a multichannel, which comprises: the at least one red and blue light LED luminous component is arranged on the plant machine, extends along the planting area or is uniformly arranged, and is used for emitting red light and/or blue light to supplement light for plants; a microprocessor for generating a pulse width modulation control signal of the working current of the red and blue light LED luminous component; the constant current driver is in one-to-one correspondence with the red and blue light emitting components and is connected with the micro-processing and the corresponding red and blue light emitting components and is used for providing constant working current according to the pulse width modulation control signal so as to control the switch and the power of the corresponding LED light emitting components; the utility model can control and regulate the on-off, brightness and light-emitting time of the red and blue light LED light-emitting component of each channel at any time, realizes accurate control of illumination, prevents waste of energy consumption, saves energy, promotes plant growth and improves production benefits.

Description

LED plant lighting device controlled by sub-channels

Technical Field

The patent relates to the field of plant machine light source control, in particular to a LED plant lighting device controlled by a split channel.

Background

According to the characteristics of the absorption spectrum of green plants, the chlorophyll absorbs visible light, the light rays with different wavelengths have different effects on photosynthesis of the plants, and researches show that blue light with the wavelength of 400-500 nanometers and red light with the wavelength of 610-720 nanometers have the largest contribution to photosynthesis. As only a small amount of red light and blue light in a white spectrum emitted by a traditional fluorescent lamp tube or an incandescent lamp contribute to promoting photosynthesis of plants, the utilization rate of light is low, and the energy consumption is seriously wasted.

In the prior art, the utilization rate of photosynthesis of plants is generally improved by integrally controlling the red and blue light LED lamps, but when two or more plants are planted on a plant machine, the illumination intensity and the illumination time required by different plant types are different, so that the illumination time of one of the plants is too long or too short, the growth of the plants is influenced, the light source of the LED is not fully utilized, and the resource waste is caused.

Disclosure of Invention

This patent is based on the above-mentioned demand of prior art and proposes, and the technical problem that this patent will solve is to provide a LED plant lighting device of multichannel control.

In order to solve the above-mentioned problem, the technical scheme that this patent provided includes:

there is provided a LED plant lighting device controlled by a sub-channel, comprising:

the at least one red and blue light LED luminous component is arranged on the plant machine, extends along the planting area or is uniformly arranged, and is used for emitting red light and/or blue light to supplement light for plants;

a microprocessor for generating a pulse width modulation control signal of the working current of the red and blue light LED luminous component;

and the constant current driver is in one-to-one correspondence with the red and blue light emitting components, is connected with the micro-processing and the corresponding red and blue light emitting components, and is used for providing constant working current according to the pulse width modulation control signal so as to control the switch and the power of the corresponding LED light emitting components.

With this setting, can control and adjust the switch, luminance and the luminous time of the luminous subassembly of red blue light LED of every passageway at any time, realize the accurate control to illumination, prevent the waste of energy consumption, practice thrift the energy, promoted vegetation, improved the productivity effect.

Optionally, the method further comprises:

the communication device is connected with the microprocessor and used for acquiring the working state information of the red and blue light LED luminous component sent by the terminal equipment and sending the working state information to the microprocessor and used for generating a corresponding pulse width modulation control signal.

Optionally, the method comprises:

the communication device comprises a WIFI module, and receives working state information through a wireless communication technology.

With this arrangement, remote control of the plant lighting device can be achieved.

Optionally, the method further comprises:

the display unit is connected with the microprocessor and is configured to display the working state information of the LED luminous component;

the display unit is provided with functional keys, and a user adjusts working state information by operating the functional keys.

With this setting, can look over and adjust the operating condition of LED luminous component in real time.

Optionally, the device further comprises a step-down circuit for converting the power supply voltage into a safe voltage value and sending the safe voltage value to the microprocessor, so as to protect an interface of the communication device.

Optionally, the constant current driver includes:

the first interface of the H5112A chip is connected with pulse width adjustment through a resistor R1;

the third interface and the fourth interface of the H5112A chip are connected in parallel, and are connected with one end of a capacitor through a resistor R2 and then grounded; the other end of the capacitor is connected with a second interface of the H5112A chip and one end of a resistor R3 in parallel; the other end of the resistor R3 is connected with the positive electrode of the polar capacitor, and the negative electrode of the shunt voltage stabilizing tube is connected with 24V voltage; the negative electrode of the polar capacitor is grounded; the negative electrode of the voltage stabilizing tube is connected with the positive electrode of the corresponding red and blue light LED luminous component in series, the positive electrode of the voltage stabilizing tube is connected with one end of a coil, the other end of the coil is connected with a fifth interface and a sixth interface of the H5112A chip in parallel, and the negative electrode of the corresponding red and blue light LED luminous component in series; the seventh interface and the eighth interface of the H5112A chip are connected in parallel and then grounded.

The microprocessor can generate the number of channels corresponding to the number of the LED luminous components, and each channel can output a PWM square wave so as to carry out channel division management on the corresponding LED luminous components.

Optionally, the device comprises two red and blue light LED lighting assemblies and two constant current drivers; a constant current driver controls a red and blue LED luminous component, wherein each red and blue LED luminous component is composed of 8 LEDs in series connection.

With this setting, under satisfying the illumination intensity of plant machine, can reduce cost.

Optionally, each LED lamp is included with a channel controlled by the microprocessor.

With this setting, can independently control every LED lamp at any time, realize the switch and the power of every LED light source among the segmentation control red blue light LED luminous component.

Optionally, the method further comprises:

the illumination sensor is arranged on the plant machine or the planting area;

the microprocessor is in communication connection with the illumination sensor and is configured to regulate and control illumination of the red and blue light LED luminous component according to a light intensity threshold.

With this setting, can monitor light intensity through illumination sensor real-time supervision, adjust the illumination intensity of red blue light LED luminous element for the plant can normally grow.

Optionally, the method further comprises:

and the monitor is in communication connection with the microprocessor and is used for acquiring the plant type information.

The requirements for illumination are inconsistent due to different kinds of plants; the strategy for regulating and controlling the red and blue light LED luminous components can be determined according to the acquired plant type information, and the LED luminous components are controlled by the sub-channels, so that plants can grow better.

Compared with the prior art, the LED illuminating lamp has the advantages that the red and blue LED illuminating components capable of directly emitting red light and blue light are adopted, so that the LED illuminating lamp can basically have functions of promoting photosynthesis of plants, the light utilization rate of the LED illuminating lamp is high, and the waste of energy consumption is greatly reduced; the WIFI module is arranged, so that the plant lighting device can be controlled remotely; the interface of the communication device is protected by arranging a voltage reducing circuit; the number of LED luminous components and the number of LEDs in each group are limited, so that the cost can be reduced under the condition that the illumination intensity of a plant machine is met; the switch and the power of each LED light source in the red and blue light LED luminous component are controlled in a segmented mode through a channel controlled by the microprocessor corresponding to each LED lamp; and the illumination sensor and the monitor are utilized to regulate and control the illumination intensity of the red and blue light LED luminous component, so that plants can grow normally.

Drawings

In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present description, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a block diagram of an electronic circuit of a LED plant lighting device with a multichannel control according to an embodiment of the present utility model;

FIG. 2 is a block diagram of an electronic circuit of a constant current driver in a LED plant lighting device controlled by a split channel according to an embodiment of the present utility model;

fig. 3 is a block diagram of an electronic circuit of a red and blue LED lighting assembly in a LED plant lighting device with a split channel control according to an embodiment of the present utility model.

Reference numerals:

1-a power supply; 2-red and blue light LED component I; 3-constant current driver I; 4-a step-down circuit; 5-a constant current driver II; 6-red and blue light LED component II; 7-a microprocessor; 8-a communication interface; 9-WIFI module.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "coupled" should be interpreted broadly, for example, as being fixedly coupled, as being detachably coupled, as being integrally coupled, as being mechanically coupled, as being electrically coupled, as being directly coupled, as being indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The terms "top," "bottom," "above … …," "below," and "on … …" are used throughout the description to refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are versatile, irrespective of their orientation in space.

For the purpose of facilitating an understanding of the embodiments of the present application, reference will now be made to the following description of specific embodiments, taken in conjunction with the accompanying drawings, in which the embodiments are not intended to limit the embodiments of the present application.

Example 1

The embodiment provides a LED plant lighting device controlled by a multichannel, as shown in fig. 1, specifically including:

In the embodiment of the utility model, the microprocessor and the communication device can exchange data through the HPI parallel interface, and the microprocessor sends a command to the communication device based on the HPI protocol to drive the constant current driver, and controls the switch and the power of each group of red and blue light LED luminous components according to the written program.

The burning-out of the LED due to the sudden increase of the voltage value can be avoided by the constant current driver, and in this embodiment, the current of the circuit can be controlled to 800mA or 1A by the constant current driver.

The lighting device further includes:

The working state information comprises the luminous power and the switch of the red and blue light LED lamp source.

Preferably, the communication device comprises a WIFI module, and receives the working state information through a wireless communication technology.

Preferably, the lighting device further comprises a step-down circuit for converting the power supply voltage into a safe voltage value and sending the safe voltage value to the microprocessor, so as to protect an interface of the communication device.

In the embodiment of the utility model, 220V alternating current can be converted into mobile phone safety voltage 5V through a voltage reduction circuit.

Preferably, the lighting device further comprises:

Preferably, as shown in fig. 2, the constant current driver specifically includes:

In the embodiment of the utility model, the bias of the grid electrode of the MOS tube can be modulated according to a Pulse-width modulation (PWM) control signal, so that the on time of the MOS tube is changed, and the change of the output of the switching regulated power supply is realized.

The operating principle of the plant lighting device for adjusting the LED luminous component comprises the following steps: the voltage reduction circuit reduces the power supply voltage and transmits the power supply voltage to the microprocessor, the microprocessor adjusts the PWM duty ratio according to 256 grades through the I/O interface and transmits the adjusted PWM duty ratio to the constant current driver, an H5112A chip of the constant current driver comprises a MOS tube, and the MOS tube controls the voltage threshold of the H5112A chip through the PWM duty ratio, wherein the range of the voltage threshold is 0-3.3V; when the PWM signal is 0, the H5112A chip is automatically turned off; when the PWM signal is 1V-3.3V, the larger the duty ratio of PWM, the brighter the red and blue LED lamps.

In the embodiment, the constant current driver adopts an H5112A chip, loop compensation is integrated in the H5112A chip, and peripheral circuits are concise and reliable; A100V high-voltage MOS tube is arranged in the high-voltage MOS tube, and the wide voltage is within the input range of 5V-90V.

The PWM port of the H5112A chip supports PWM dimming with ultra-small duty ratio, can respond to PWM pulse width waveforms smaller than 60 nanoseconds, outputs off when PWM signals are low level, outputs on when PWM signals are high level, and defaults to high level output when the PWM signals are suspended.

Preferably, as shown in fig. 3, the plant lighting device comprises two red and blue LED lighting assemblies and two constant current drivers; a constant current driver controls a red and blue LED luminous component, wherein each red and blue LED luminous component is composed of 8 LEDs in series connection.

Preferably, each LED lamp in the plant lighting device corresponds to a channel controlled by the microprocessor.

In the embodiment of the utility model, each LED lamp corresponds to one channel, the two red and blue LED luminous components define 16 channels in total, and each channel controls the switching and the brightness of the corresponding red and blue LED lamp by receiving a command written by a binary system through a receiving microprocessor.

Preferably, the lighting device further comprises:

the illumination sensor is arranged on the plant machine or the planting area;

Preferably, the lighting device further comprises:

Compared with the prior art, the embodiment of the utility model can basically have the function of promoting photosynthesis of plants by adopting the red and blue LED luminous components capable of directly emitting red light and blue light, has high light utilization rate of the LED plant illuminating lamp and greatly reduces the waste of energy consumption; the WIFI module is arranged, so that the plant lighting device can be controlled remotely; the interface of the communication device is protected by arranging a voltage reducing circuit; the number of LED luminous components and the number of LEDs in each group are limited, so that the cost can be reduced under the condition that the illumination intensity of a plant machine is met; the switch and the power of each LED light source in the red and blue light LED luminous component are controlled in a segmented mode through a channel controlled by the microprocessor corresponding to each LED lamp; and the illumination sensor and the monitor are utilized to regulate and control the illumination intensity of the red and blue light LED luminous component, so that plants can grow normally.

The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present application, and are not meant to limit the scope of the utility model, but to limit the scope of the utility model.

Claims

1. A LED plant lighting device controlled by a multichannel, comprising:

and the constant current driver is in one-to-one correspondence with the red and blue light LED luminous components, is connected with the micro-processing and the corresponding red and blue light LED luminous components, and is used for providing constant working current according to the pulse width modulation control signal so as to control the switch and the power of the corresponding LED luminous components.

2. The apparatus as recited in claim 1, further comprising:

3. The apparatus according to claim 2, characterized by comprising:

4. A device according to claim 3, further comprising:

5. The device of claim 1, further comprising a step-down circuit for converting a power supply voltage to a safe voltage value for transmission to the microprocessor, protecting an interface of the communication device.

6. The apparatus of claim 1, wherein the constant current driver comprises:

7. The apparatus of claim 1, wherein the apparatus comprises two red and blue LED lighting assemblies and two constant current drivers; a constant current driver controls a red and blue LED luminous component, wherein each red and blue LED luminous component is composed of 8 LEDs in series connection.

8. The device of claim 1, comprising one channel for each LED lamp controlled by the microprocessor.

9. The apparatus as recited in claim 1, further comprising:

the illumination sensor is arranged on the plant machine or the planting area;

10. The apparatus as recited in claim 9, further comprising: