CN111417238A - developments illumination L ED plant lamp system - Google Patents
developments illumination L ED plant lamp system Download PDFInfo
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- CN111417238A CN111417238A CN202010329659.7A CN202010329659A CN111417238A CN 111417238 A CN111417238 A CN 111417238A CN 202010329659 A CN202010329659 A CN 202010329659A CN 111417238 A CN111417238 A CN 111417238A
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Abstract
the invention relates to a dynamic illumination L ED plant lamp system which comprises a digital control module, a timing module, a data storage module, a communication module, a multi-path direct current-direct current conversion module, an alternating current-direct current conversion module and a plurality of mutually independent different light quality L ED branches, wherein anodes of the L ED branches are electrically connected with an anode of an output end of the alternating current-direct current conversion module, and cathodes of the L ED branches are respectively and electrically connected with one output end of the multi-path direct current-direct current conversion module.
Description
Technical Field
the invention relates to the technical field of plant illumination systems, in particular to a dynamic illumination L ED plant lamp system.
Background
The plant growth lighting system is an important unit in indoor planting of intelligent greenhouses, plant factories and the like, illumination plays a key role in plant photomorphogenesis, plastid differentiation and plant growth and development, and not only is the driving force of plant photosynthesis, but also is a plant growth regulation and control signal, and the growth and development process of plants is regulated by exciting related gene expression to influence the yield and quality of the plants. A series of photoreceptors exist in the plant body, so that the plant can accurately and timely sense the change of the light environment. The existing research shows that the light environment (illumination intensity, light quality proportion, illumination period and illumination time distribution) for plant growth is comprehensively and finely regulated, and a reasonable illumination regulation scheme and a reasonable light proportion are formulated, so that the plant quality can be remarkably improved, and the energy consumption of a light source can be effectively reduced.
In terms of illumination intensity: the intensity of plant photosynthesis is closely related to the intensity of illumination, and as the intensity of illumination is increased, the photosynthesis assimilates CO 2Volume and respiration CO release 2The nodes with equal amount are light compensation points, the nodes with photosynthesis not increasing with the increase of light intensity are light saturation points, and the illumination intensity is dynamically adjusted at different growth stages of plants, so that the net photosynthesis of the plants can be maximized, and the utilization rate of light energy is highest.
In terms of light quality: when plants are subjected to photosynthesis, the areas with the strongest chlorophyll absorption spectra are in a red light wave band with the wavelength of 600-700 nm and a blue light wave band with the wavelength of 420-470 nm, namely, the plant photosynthesis has the highest light quantum efficiency in the blue light and the red light wave bands. Besides influencing the photosynthesis rate, different lights such as white light, red light, yellow light, blue light, green light and the like have different regulation and control effects on the growth and development of plants, influence on the formation of plant leaf green bodies, the synthesis of photosynthetic pigments, the movement of leaf pores, the extension of leaves, carbon assimilation and rhizome growth of plants, influence on the biosynthesis of soluble proteins and saccharides, and regulate and control the synthesis of secondary metabolites such as plant physiology and biochemistry, carbohydrate metabolism, protein generation, total phenols, anthocyanin and ascorbic acid. Dynamically regulating light quality, promoting plant photomorphogenesis and root and stem development, regulating hormone balance, regulating contents of nitrate, vitamin C, anthocyanin and soluble protein, relieving chlorophyll degradation, reducing nitrate content, and increasing ascorbic acid, soluble sugar and soluble protein content.
In terms of photoperiod: the photoperiod is an important environmental factor affecting plant growth and development and substance anabolism. The metabolism process of substances in plants changes periodically with day and night. The different illumination periods affect the biological rhythm clock through the cryptochrome of the plant, regulate and control the seed germination and the seedling development, affect the generation of the photosynthetic products, the accumulation of carbohydrate and the nutritional quality, and regulate and control the flowering time of the plant.
In terms of illumination time distribution: the time distribution of illumination refers to the distribution of the combination of the same light quality and light intensity on a light period time axis, and is mainly reflected in the mode difference of continuous light supply, alternate light supply, intermittent light supply and the like. For example, a continuous light supply (16 h light, 8h dark), a cycle of 2 intermittent light supplies (8 h light, 4h dark each time), a cycle of 4 intermittent light supplies (4 h light, 2h dark each time) and the like can be adopted in a 24h day-night period. Different light supply time distributions have important regulation and control functions on the accumulation of plant types, dry matters, crude fibers, starch and soluble sugar contents of plants.
The light formula is the parameters of illumination intensity, light quality proportion, illumination period and illumination time distribution used for promoting plant growth or regulating and controlling quality. The optimal light formulas of the plants at different growth stages are different, different light formulas can be adopted at the growth stages of germination, adult plant, flowering, fruiting and the like, the light scheme is combined, the light environment is dynamically adjusted, the plants are always grown in a relatively optimal state, and the efficient cultivation of the plants is promoted. For example: the method is characterized in that red light is adopted to irradiate to promote germination in a seed germination stage, blue light is added to inhibit excessive growth and green light is added to improve root system activity in a seedling stage, red light and blue light substances with specific proportions are adopted to promote plant growth and improve yield in a cultivation stage, a blooming period and a fruiting period are adjusted by using a light cycle in a blooming and fruiting stage, quality is adjusted by adopting continuous light before harvesting, and the like.
the light quality of the light source applied to the plant light supplement lamp at present mainly combines red light with the wavelength of 660nm and blue light monochromatic L ED chips with the wavelength of 460nm, and a plurality of single-chip L EDs are alternately arranged to form a lamp tube or a lamp panel, and a small amount of ultraviolet light and far-red light are also added into some newly developed L ED light sources.
the method comprises the steps of firstly connecting a plurality of LED chips with the same light quality in series, then connecting a current equalizing resistor in series to form an L0 ED plant lamp, finally connecting a single-output L1 ED driving power supply to supply power, fixing the output current of the driving power supply, and driving an L2 ED lamp in a constant current mode, wherein the spectrum of the mode is fixed, the light quality ratio and the brightness cannot be adjusted, the other mode is that connecting a plurality of LED chips with the same light quality in series, then connecting a current equalizing resistor in series to form an L3 branch with the same light quality, then connecting L ED branches with different light quality in parallel to form an L3 LED branch, and then connecting L ED branches with different light quality to realize the combination of the L2 ED lamp in a mode that the average luminous brightness of the LED chips with the same light quality is adjusted by a single-output power supply, the average luminous brightness of the LED chips is adjusted by a constant current source, the average luminous brightness of the LED chips is adjusted by adjusting the LED luminous brightness of the LED chips with the LED, and the LED luminous brightness of the LED chips is adjusted by a constant current adjusting mode, and the LED luminous brightness of the LED luminous brightness, and the LED luminous efficiency of the LED lamps are adjusted by a PWM light adjusting mode that the LED luminous efficiency is not equal to adjust the average luminous brightness of the LED, the LED luminous brightness of the LED luminous efficiency of the LED, the LED luminous efficiency of the LED light, the LED light quality, the LED luminous efficiency of the LED light quality, the LED light quality of the LED light quality is adjusted by the LED light quality, and the LED light quality of the LED light quality, the LED light quality of the LED light quality, the LED light quality of.
patent CN 206944051U discloses a spectrum adjustable L ED growth lamp with an aligned L ED array by joining a plurality of red, yellow, white and purple light L ED lamp beads, which can adjust the spectrum.
patent CN 202182363U discloses one kind and realizes illumination intensity adjustable L ED lamp area through changing ruddiness and blue light lamp pearl quantity and on-off control.
patent CN 204670053U discloses a micro-plant factory that achieves tunable spectra through an L ED array and different colored lenses.
Patent CN 209234363U discloses a planting greenhouse that realizes the selection of plant lamp spectrum module by adjusting the mechanical structure.
patent CN 209250914U discloses an led plant lighting system that detects plant height by means of an infrared sensor and changes the spectrum by changing the number of red, green and blue emitters.
patent CN 207349911U discloses a vegetation lamp of placing multiple L ED lamp pearl to adjust luminance through the knob.
patent CN 207635101U discloses an L ED plant lamp for adjusting red-blue ratio and illumination intensity through wireless communication.
patent CN 110301253a discloses a method for adjusting plant lighting spectrum, which utilizes a single led chip in conjunction with a fluorescent powder technology to satisfy the illumination requirements of plants in different physiological periods by adjusting the weight ratio of the fluorescent powder.
patent CN 110285359a discloses an led lamp for plant illumination with adjustable light intensity by supporting the height of the rod.
patent CN 110249833a discloses a method for improving yield and quality of leaf vegetables in plant factories by adding low-dose long-wave ultraviolet light on the basis of a conventional L ED light source.
Patent CN 109964683a discloses a method for improving the light energy utilization efficiency of leaf vegetables in plant factories by adding low dose of far-red light in the photoperiod, which promotes the leaf vegetables to show the characteristics of the shade plants such as stem and petiole elongation, leaf angle elevation, leaf area increase, etc.
patent CN 109751537A discloses a vegetation lamp that crisscross interval of L ED lamp pearl set up, solves the not enough even technical problem of wavelength in the region.
Patent CN 104359049a discloses a method and apparatus for adjusting the intensity of artificial light source, the distance from the plant canopy, and the focus lens to provide accurate illumination range and intensity for the plant.
patent CN 105828479a discloses a continuously adjustable driving power supply for realizing light quality ratio R/B of different L ED lamp light sources by adjusting a slide rheostat.
The illumination condition that most present plant lamps provided is subject to lamp pearl collocation or phosphor powder allotment at present, produces the facula problem easily after the mixed light, and illumination is not enough even, and installation back illumination intensity and light quality are than difficult the adjustment. The current-sharing resistance of each light-emitting branch in series affects the actual electricity utilization efficiency.
The plant lamp which realizes brightness and light quality regulation in a PWM mode actually works in a flickering state, is different from continuous illumination of natural light, and has potential influence on plant growth.
when illumination adjustment is realized in the current L ED plant lamp driving mode, continuous external communication connection, frequent manual intervention or a complex dimming control system are needed, and dynamic autonomous adjustment of illumination intensity, light-quality ratio, light cycle and illumination time distribution cannot be realized.
the light quality ratio of the L ED array after light mixing cannot be adjusted when a single-output L ED driving power supply is adopted for driving;
the driving power supply adopted by the existing L ED plant lamp is mainly an L ED lighting general driving power supply, the driving power supply only realizes the function of constant current driving, the dimming control is realized through external communication or manual operation, the lighting condition is fixed after offline, and the dynamic self-regulation cannot be realized.
Disclosure of Invention
in view of the deficiencies of the prior art, it is an object of the present invention to provide a dynamic illumination L ED plant lamp system.
the invention solves the technical problem by adopting the technical scheme that the dynamic illumination L ED plant lamp system comprises a digital control module, a timing module in communication connection with the digital control module, a data storage module in communication connection with the digital control module, a communication module in communication connection with the digital control module, a multi-path direct current-direct current conversion module in electric connection with the digital control module, an alternating current-direct current conversion module in electric connection with the multi-path direct current-direct current conversion module, and a plurality of mutually independent different light quality L ED branches, wherein anodes of the L ED branches are all in electric connection with an anode of an output end of the alternating current-direct current conversion module, and cathodes of the L ED branches are respectively in electric connection with one output end of the multi-path direct current-direct current conversion module;
The digital control module is used for controlling the work of each component;
The alternating current-direct current conversion module is used for converting alternating current of a common power supply network into low-voltage alternating current;
The multi-path direct current-direct current conversion module is used for converting alternating current output by the alternating current-direct current conversion module into direct current;
The data storage module is used for storing the optical recipe parameters, so that the digital control module can read and store the optical recipe parameters conveniently;
The timing module is used for calculating the time continuously and transmitting the time parameter to the digital control module;
The communication module is used for realizing information interaction between the digital control module and the upper computer, sending the current illumination information to the upper computer or receiving an instruction of the upper computer, and adding, modifying or deleting the optical formula in the data storage module;
in the design, a plurality of direct current-direct current conversion modules which are independently controlled to output are adopted, the magnitude of driving current and the length of driving time of different light quality L ED branches of the plant lamp are driven in a constant-current and non-stroboscopic mode, the data storage module is adopted to store light formula parameters, the timing module is adopted to calculate time, the illumination intensity, the light-quality ratio, the light period and the illumination time distribution can be dynamically adjusted aiming at different plants and different growth stages, and efficient plant cultivation is realized.
as a further improvement of the design, the multi-path dc-dc conversion module is composed of a plurality of constant current driving circuits and MOSFET driving ICs, the input ends of the constant current driving circuits are connected in parallel, each constant current driving circuit includes an anode line, a cathode line, an input filter capacitor and an output filter capacitor, both ends of each constant current driving circuit are respectively connected with the cathode line and the anode line, a freewheeling diode and a differential amplifying circuit are connected between the cathode line and the anode line, the cathode line is sequentially connected with the MOSFET, the output filter inductor and a sampling resistor in series from front to back, both ends of the sampling resistor are respectively connected with two detection ends of the differential amplifying circuit, the differential amplifying circuit is electrically connected with the digital control module, the MOSFET is arranged between the input filter capacitor and the freewheeling diode, the output filter inductor is arranged between the freewheeling diode and the output filter capacitor, the anode line is electrically connected with the anode of the output end of the ac-dc conversion module, the cathode line is electrically connected with the cathode of the output end of the ac-dc conversion module, the MOSFET driving ICs are connected with the MOSFET control module, the average value of the output current is L, and the lamp beads are led without stroboscopic current.
As a further improvement of the design, the digital control module is a single chip microcomputer comprising an AD sampling conversion module, and the AD sampling conversion module is electrically connected with the feedback end of the differential circuit, so that the accurate feedback of the driving current and the accurate control of the light intensity of each light quality can be ensured under the condition of driving a plurality of paths of LEDs connected with a common anode.
As a further improvement of the design, the data storage module storage IC is an EEPROM chip. After the power failure, the data is not lost, and the safety of the data is ensured.
As a further improvement of the present design, the timing module is a low power consumption timing IC powered by a dry cell battery. The timing can be kept under the condition that the low-voltage alternating current input is powered off or shut down, so that the optical formula parameters can be correctly read according to the current time when the alternating current input is reconnected or is started.
As a further improvement of the design, the communication module is one or a combination of wireless communication and bus communication. The writing of the light distribution parameters into the system is facilitated.
As a further improvement of the design, the MOSFET driver ICs are low-side driver chips, which are convenient for driving the multiple L EDs connected with the common anode, and simultaneously, a bootstrap circuit required by high-side driving is omitted.
As a further improvement of the design, the MOSFET driving ICs are composed of a plurality of driving chips with independent outputs, each driving chip is connected with the MOSFET on one constant current driving circuit, the L ED branches with various light qualities can be independently controlled, and the light spectrum is accurately configured.
As a further improvement of the design, the system comprises four L ED branches with different light qualities, and the number of the constant current driving circuits is four.
the invention has the advantages that the direct current-direct current conversion module with multi-channel independent control output is adopted, the driving current and the driving time of different light quality L ED branches of the plant lamp are driven in a constant-current and non-stroboscopic mode, the light formula parameters are stored by the data storage module, the time is calculated by the timing module, the illumination intensity, the light-quality ratio, the light period and the illumination time distribution can be dynamically adjusted according to different plants and different growth stages, and the efficient cultivation of the plants is realized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic diagram of the circuit structure of the present invention.
in the figure, 1, an alternating current-direct current conversion module, 2, an output end anode, 3, a dry battery, 4, a freewheeling diode, 5, an anode wire, 6, an input filter capacitor, 7, a MOSFET, 8, an output filter capacitor, 9, an output filter inductor, 10, a sampling resistor, 11, a differential amplification circuit, 12, a communication module, 13, a timing module, 14, a digital control module, 15, a data storage module, 16, an L ED branch, 17, a constant current driving circuit, 18, MOSFET driving ICs, 19, an output end cathode and 20, a cathode wire.
Detailed Description
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided only for the purpose of illustrating the present invention and are not to be construed as limiting the present invention.
the embodiment provides a dynamic illumination L ED plant lamp system, which comprises a digital control module 14, a timing module 13 in communication connection with the digital control module 14, a data storage module 15 in communication connection with the digital control module 14, a communication module 12 in communication connection with the digital control module 14, a plurality of paths of direct current-direct current conversion modules in electrical connection with the digital control module 14, an alternating current-direct current conversion module 1 in electrical connection with the plurality of paths of direct current-direct current conversion modules, and a plurality of mutually independent different light quality L ED branches 16, wherein anodes of the L ED branches 16 are all electrically connected with an anode 2 at the output end of the alternating current-direct current conversion module 1, and cathodes of the L ED branches 16 are respectively electrically connected with one output end of the plurality of paths of direct current-direct current conversion modules;
The digital control module 14 is used for controlling the work of each component;
The alternating current-direct current conversion module 1 is used for converting alternating current of a common power supply network into low-voltage alternating current;
The multi-path direct current-direct current conversion module is used for converting the alternating current output by the alternating current-direct current conversion module 1 into direct current;
The data storage module 15 is used for storing the optical formula parameters, so that the digital control module 14 can read and store the optical formula parameters conveniently;
The timing module 13 is used for calculating the time continuously and transmitting the time parameter to the digital control module 14;
And the communication module is used for realizing information interaction between the digital control module 14 and the upper computer, sending the current illumination information to the upper computer or receiving an instruction of the upper computer, and adding, modifying or deleting the light formula in the data storage module 15.
the direct current-direct current conversion module with multi-channel independent control output is adopted in the design, the driving current and the driving time of the different light quality L ED branches 16 of the plant lamp are driven in a constant-current and non-stroboscopic mode, the data storage module 15 is adopted to store light recipe parameters, the timing module 13 is adopted to calculate time, the illumination intensity, the light-to-quality ratio, the light period and the illumination time distribution can be dynamically adjusted according to different plants and different growth stages, and efficient plant cultivation is achieved.
as a further improvement of this design, the multi-channel dc-dc conversion module is composed of a plurality of constant current driving circuits 17 and MOSFET driver ICs18, the input ends of the constant current driving circuits 17 are connected in parallel, each constant current driving circuit 17 includes an anode line 5, a cathode line 20, an input filter capacitor 6 and an output filter capacitor 8, both ends of which are respectively connected to the cathode line 20 and the anode line 5, a freewheeling diode 4 connected between the cathode line 20 and the anode line 5, and a differential amplifier circuit 11, the cathode line 20 is sequentially connected in series with a MOSFET7, an output filter inductor 9, and a sampling resistor 10 from front to back, both ends connected to the sampling resistor 10 are respectively electrically connected to both detection ends of the differential amplifier circuit 11, the differential amplifier circuit 11 is electrically connected to the digital control module, the MOSFET7 is arranged between the input filter capacitor 6 and the freewheeling diode 4, the output filter inductor 9 is arranged between the output filter capacitor 4 and the output filter capacitor 8, the anode line 5 is electrically connected to the anode output end 2 of the ac-dc conversion module 1, the cathode line 20 is electrically connected to the ac-dc conversion module 19, and the MOSFET driver ICs 7 is connected to the cathode line 18, and the MOSFET driver ic 18 is connected to the digital control module.
As a further improvement of the design, the digital control module 14 is a single chip microcomputer including an AD sampling conversion module, and the AD sampling conversion module is electrically connected with the feedback end of the differential circuit, so that the accurate feedback of the driving current and the accurate control of the light intensity of each light quality can be ensured under the condition of driving a plurality of paths of LEDs connected with a common anode.
As a further improvement of the present design, the data storage module 15 stores the IC as an EEPROM chip. After the power failure, the data is not lost, and the safety of the data is ensured.
As a further improvement of the present design, the timing module 13 is a low power consumption timing IC powered by the dry cell 3. The timing can be kept under the condition that the low-voltage alternating current input is powered off or shut down, so that the optical formula parameters can be correctly read according to the current time when the alternating current input is reconnected or is started.
As a further improvement of this design, the communication module 12 is one or a combination of wireless communication and bus communication. The writing of the light distribution parameters into the system is facilitated.
As a further improvement of this design, the MOSFET driver ICs18 are low-side driver chips, facilitate driving multiple L EDs connected in common anode, while eliminating the bootstrap circuit required for high-side driving.
as a further improvement of the design, the MOSFET driver ICs18 are composed of a plurality of driver chips with individual outputs, and each driver chip is connected to a MOSFET7 on the constant current driver circuit 17.
as a further improvement of the present design, the system includes L ED branches 16 with different light qualities, and there are four constant current driving circuits 17.
As a further improvement of the design, the constant current driving circuit 17 is a modified Buck circuit.
The invention realizes the flow description of dynamically and automatically adjusting the illumination environment:
The digital control module 14 monitors the data of the communication module, the upper computer can send the set light formula to the digital control module 14 through the communication module according to the plant growth requirement, and the digital control module 14 stores the light formula parameters in the data storage module 15.
the digital control module 14 reads time data in the low power consumption timing module 13 at a certain time interval, compares light formula parameters in the data storage module 15, and calculates the driving current required by each current light quality L ED branch 16 as the output current reference of each constant current driving circuit 17.
Since the optical recipe is stored in the data storage module 15 inside the apparatus, when the apparatus is disconnected from external communication, i.e., in an off-line state, the optical recipe parameters can be automatically switched according to the pre-stored optical recipe and the current time.
the AD converter in the digital control module 14 converts the sampling resistors 10 of the light quality L ED branches 16 and the sampling output voltage of the differential amplification module into digital signals, compares the digital signals with the current reference signals of the light quality L ED branches 16, outputs the duty ratio driving signals of the light quality L ED branches 16, and adjusts the duty ratio in a negative feedback manner to ensure current closed-loop control.
the duty ratio driving signals of each light quality L ED branch 16 output by the digital control module 14 are converted into driving levels through the MOSFET driving ICs18, the MOSFET7 of the multi-path direct current-direct current constant current driving circuit 17 is driven to be switched on and off, input direct current voltage is converted into direct current driving current, and each light quality branch of the L ED plant lamp is driven.
the LED plant lamp is characterized in that the drive current of each light quality LED branch 16 is independently adjusted through a current sampling resistor 10, a differential amplification circuit 11, a digital control module 14 and a MOSFET drive IC 18, the cathode end of each light quality LED branch 16 is connected with the high-precision sampling resistor 10 with small resistance in series, when the drive current flows through the light quality LED branch 16, voltage is generated on the sampling resistor 10, the differential amplification circuit 11 amplifies the voltage of the sampling resistor 10 and provides the amplified voltage to an AD sampling conversion module in the digital control module 14, the digital control module 14 sets the current reference of each LED branch 16 according to the light configuration parameters and adjusts the drive signals of each branch by contrasting the current sampling values, the MOSFET drive IC 18 converts each L branch ED 16 drive signal output by the digital control module 14 into voltage suitable for driving a MOSFET7 switch and drives the MOSFET7 to be switched on and off to realize constant current output and closed-loop control, wherein the differential amplification circuit 11 can be realized by adopting a common or high-precision operational amplification IC, the MOSFET drive IC 18 can adopt four chips which are independently output or adopt a Buck chip which is connected with a bootstrap drive circuit, and a high-side drive transistor which is connected with a high-side drive transistor, and a low-side drive-integrated circuit chip 7.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A dynamic illumination L ED plant lamp system is characterized by comprising a digital control module, a timing module in communication connection with the digital control module, a data storage module in communication connection with the digital control module, a communication module in communication connection with the digital control module, a multi-path direct current-direct current conversion module electrically connected with the digital control module, an alternating current-direct current conversion module electrically connected with the multi-path direct current-direct current conversion module, and a plurality of mutually independent L ED branches with different light qualities, wherein anodes of the L ED branches are electrically connected with an anode of an output end of the alternating current-direct current conversion module, and cathodes of the L ED branches are respectively and electrically connected with an output end of the multi-path direct current-direct current conversion module;
The digital control module is used for controlling the work of each component;
The alternating current-direct current conversion module is used for converting alternating current of a common power supply network into low-voltage alternating current;
The multi-path direct current-direct current conversion module is used for converting alternating current output by the alternating current-direct current conversion module into direct current;
The data storage module is used for storing the optical recipe parameters, so that the digital control module can read and store the optical recipe parameters conveniently;
The timing module is used for calculating the time continuously and transmitting the time parameter to the digital control module;
And the communication module is used for realizing information interaction between the digital control module and the upper computer, sending the current illumination information to the upper computer or receiving an instruction of the upper computer, and adding, modifying or deleting the optical formula in the data storage module.
2. the dynamic illumination L ED plant lamp system as claimed in claim 1, wherein the multi-channel DC-DC conversion module is composed of a plurality of constant current driving circuits and MOSFET driving ICs, the input ends of the constant current driving circuits are connected in parallel, each constant current driving circuit comprises an anode wire, a cathode wire, an input filter capacitor and an output filter capacitor, the input filter capacitor and the output filter capacitor are connected with the cathode wire and the anode wire respectively, a fly-wheel diode and a differential amplifying circuit are connected between the cathode wire and the anode wire, the MOSFET, the output filter inductor and a sampling resistor are sequentially connected in series on the cathode wire from front to back, the two ends connected with the sampling resistor are electrically connected with the two detection ends of the differential amplifying circuit respectively, the differential amplifying circuit is electrically connected with the digital control module, the MOSFET is arranged between the input filter capacitor and the fly-wheel diode, the output filter inductor is arranged between the fly-wheel diode and the output filter capacitor, the anode wire is electrically connected with the anode of the AC-DC conversion module, the cathode wire is electrically connected with the cathode of the AC-DC conversion module, the MOSFET driving ICs are connected with the digital control ICs.
3. the dynamic illumination L ED plant lamp system as claimed in claim 1, wherein the digital control module is a single chip microcomputer including an AD sampling conversion module, and the AD sampling conversion module is electrically connected with the feedback end of the differential circuit.
4. the dynamic lighting L ED plant lamp system as claimed in claim 1, wherein the data storage module memory IC is an EEPROM chip.
5. the dynamic lighting L ED plant lamp system as claimed in claim 1, wherein the timing module is a low power consumption timing IC powered by dry cell batteries.
6. the dynamic lighting L ED plant lamp system as claimed in claim 1, wherein the communication module is one or a combination of wireless communication and bus communication.
7. the dynamic illumination L ED plant lamp system as claimed in claim 1, wherein the MOSFET driver ICs are low side driver chips.
8. the dynamic illumination L ED plant lamp system as claimed in claim 2, wherein the MOSFET driver ICs are composed of a plurality of driver chips with individual outputs and each driver chip is connected with a MOSFET on a constant current driving circuit.
9. the dynamic illumination L ED plant lamp system as claimed in claim 2, wherein the system comprises four L ED branches with different light quality, and the constant current driving circuit comprises four.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113632656A (en) * | 2021-08-20 | 2021-11-12 | 浙江树人学院（浙江树人大学） | Ecological garden plant growth developments light filling control system |
| CN114585142A (en) * | 2020-12-01 | 2022-06-03 | 深圳市泛科科技有限公司 | Multiband batch dimming method and system for plant lamp |
| CN115067097A (en) * | 2022-07-26 | 2022-09-20 | 江苏桁壹生物科技有限公司 | Plant cultivation artificial light supplementing method, system and equipment |
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| CN202721869U (en) * | 2012-07-30 | 2013-02-06 | 西北工业大学 | Embedded realization-based intelligent constant-current driver |
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| CN114585142A (en) * | 2020-12-01 | 2022-06-03 | 深圳市泛科科技有限公司 | Multiband batch dimming method and system for plant lamp |
| CN113632656A (en) * | 2021-08-20 | 2021-11-12 | 浙江树人学院（浙江树人大学） | Ecological garden plant growth developments light filling control system |
| CN113632656B (en) * | 2021-08-20 | 2022-05-10 | 浙江树人学院（浙江树人大学） | Ecological garden vegetation developments light filling control system |
| CN115067097A (en) * | 2022-07-26 | 2022-09-20 | 江苏桁壹生物科技有限公司 | Plant cultivation artificial light supplementing method, system and equipment |
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