CN113473677A - Control method and device of plant lighting system, terminal and driving circuit - Google Patents
Control method and device of plant lighting system, terminal and driving circuit Download PDFInfo
- Publication number
- CN113473677A CN113473677A CN202110633185.XA CN202110633185A CN113473677A CN 113473677 A CN113473677 A CN 113473677A CN 202110633185 A CN202110633185 A CN 202110633185A CN 113473677 A CN113473677 A CN 113473677A
- Authority
- CN
- China
- Prior art keywords
- current limiting
- load branch
- led load
- value
- preset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/34—Voltage stabilisation; Maintaining constant voltage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a control method, a control device, a terminal and a driving circuit of a plant lighting system, wherein the method comprises the following steps: acquiring a lamp voltage corresponding to each LED load branch and a preset voltage value of the load branch, wherein the lamp voltage is the total serial voltage of each LED lamp in the LED load branch; determining a target lamp voltage meeting a first preset condition from all lamp voltages according to a preset voltage value of a load branch circuit, and determining a target LED load branch circuit corresponding to the target lamp voltage; controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length; determining a first LED load branch corresponding to a first target current limiting value, and acquiring first loss data of a current limiting module in the first LED load branch; judging whether the first loss data is lower than a preset loss value or not; if yes, the first LED load branch circuit is controlled to work at the first target current limiting value, loss of the lighting system can be reduced, and efficiency of the lighting system is improved.
Description
Technical Field
The invention relates to the technical field of multi-path LED driving circuits, in particular to a control method, a control device, a control terminal and a driving circuit of a plant lighting system.
Background
In some lighting occasions, a plurality of LED lamp beads are required to be arranged in the lamp, and all the LED lamp beads cannot be connected in series at one step, so that the mode of a multi-path LED lamp is set. Because the indoor illumination needs the consistent brightness of each path of the multiple paths of LEDs; therefore, in the circuit design under the scene, the output voltage of the preceding-stage constant voltage source Qs is higher than the voltage of the highest LED lamp, so that the current limiting module can work normally, and each load current can be equal to the preset value; so that the brightness of all the LED lamps is uniform.
In this scheme, when the voltage of one or a few of the LED lamps is particularly high, and the voltages of the remaining LED lamps are relatively low, the loss of the current-limiting module of the load branch circuits with relatively low lamp voltage is particularly high, which results in high loss of the whole lighting system, and is not favorable for improving the efficiency of the lighting system.
In the field of plant illumination, high efficiency and low loss are pursued, the requirement on the brightness consistency of the LED lamp is low, and the efficiency of an illumination system is emphasized; therefore, the above driving scheme cannot be well used in the field of plant lighting.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a control method of a plant lighting system, which reduces the loss of an LED load branch circuit caused by lower lamp voltage by setting the current limiting value of the LED load branch circuit and controlling the current limiting value of the LED load branch circuit to gradually rise.
In order to achieve the above object, the present invention provides a control method for a plant lighting system, wherein the plant lighting system comprises at least two LED load branches, each of which comprises a current limiting module and at least two LED lamps; the method comprises the following steps:
acquiring a lamp voltage corresponding to each LED load branch and a preset voltage value of the load branch, wherein the lamp voltage is the total serial voltage of each LED lamp in the LED load branch;
determining a target lamp voltage meeting a first preset condition from all lamp voltages according to the preset voltage value of the load branch circuit, and determining a target LED load branch circuit corresponding to the target lamp voltage;
controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length;
determining a first LED load branch corresponding to a first target current limiting value, and acquiring first loss data of the current limiting module in the first LED load branch;
judging whether the first loss data is lower than a preset loss value or not;
and if so, controlling the first LED load branch to work at the first target current limiting value.
In one embodiment, further comprising:
if the first loss data is not lower than a preset loss value, controlling the first target current limiting value to be increased to a second target current limiting value according to a preset step length;
determining a second LED load branch corresponding to a second target current limiting value, and acquiring second loss data of the current limiting module in the second LED load branch;
judging whether the second loss data is lower than a preset loss value or not;
if not, controlling a current limiting module in the second LED load branch circuit to work in a preset working mode; and the preset working mode is an on-off mode.
In one embodiment, the controlling the current limiting module in the second LED load branch to operate after the preset operation mode further includes:
determining a third LED load branch working in a preset working mode, and acquiring third loss data when a control tube in the current limiting module in the third LED load branch is in a conducting state;
judging whether the third loss data is lower than a preset loss value or not;
if not, reducing the duty ratio of the control tube.
In one embodiment, during the process that a control tube in the current limiting module is in a conducting state, the method further comprises the following steps:
obtaining a current value and a third target current limiting value in the third LED load branch;
judging whether the current value is higher than a third target current limiting value or not;
and if so, increasing the impedance of the control tube.
In one embodiment, the obtaining first loss data of the current limiting module in the first LED load branch comprises:
acquiring a first current value of the first LED load branch and a first voltage value at two ends of the current limiting module in the first LED load branch;
and calculating first loss data of the current limiting module according to the first current value and the first voltage value.
In one embodiment, the controlling the current limiting value of the target LED load branch to increase to the first target current limiting value according to a preset step includes:
comparing a first target current limiting value obtained by increasing a preset step current value to a current limiting value of the target LED load branch with a preset current limiting value threshold value to obtain a first comparison result;
judging whether the first comparison result meets a second preset condition or not;
and if so, controlling the current flow limiting value to be increased to a first target flow limiting value according to a preset step length.
In one embodiment, the method further includes controlling the target LED load branch to operate at the current limiting value and controlling the current limiting module to operate in a preset operating mode if the first comparison result does not satisfy a second preset condition; and the preset working mode is an on-off mode.
The application also provides a control device of the plant lighting system, wherein the plant lighting system comprises at least two LED load branches, and each LED load branch comprises a current limiting module and at least two LED lamps; the device comprises:
the voltage acquisition module is used for acquiring a lamp voltage corresponding to each LED load branch and a preset voltage value of the load branch, wherein the lamp voltage is the total serial voltage of each LED lamp in the LED load branches;
the first determining module is used for determining a target lamp voltage meeting a first preset condition from all lamp voltages according to the preset voltage value of the load branch circuit, and determining a target LED load branch circuit corresponding to the target lamp voltage;
the first control module is used for controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length;
the second determining module is used for determining a first LED load branch corresponding to a first target current limiting value and acquiring first loss data of the current limiting module in the first LED load branch;
the first judging module is used for judging whether the first loss data is lower than a preset loss value or not;
and the second control module is used for controlling the first LED load branch to work at the first target current limiting value if the first loss data is a first preset loss value.
The present application further provides a control terminal of a plant lighting system, the terminal includes a processor and a memory, the memory stores at least one instruction or at least one program, and the at least one instruction or the at least one program is loaded and executed by the processor to implement the control method of the plant lighting system as described above.
The application also provides a driving circuit of the plant lighting system, which comprises a constant voltage power supply, a control terminal and at least two LED load branches; the control terminal is the control terminal of the plant lighting system;
each two paths of LED load branches are connected in parallel, and each path of LED load branch is connected with a constant voltage power supply in series;
the LED load branch comprises a current limiting module and at least two LED lamps, and the LED lamps and the current limiting module are connected in series;
the current limiting module is electrically connected with the control terminal.
The embodiment of the invention has the following beneficial effects:
the control method of the plant lighting system disclosed by the invention has the advantages that the current limiting value of the LED load branch is set, and the current limiting value of the LED load branch is controlled to be gradually increased, so that the loss of the LED load branch caused by low lamp voltage is reduced.
Drawings
In order to more clearly illustrate the control method, device, terminal and driving circuit of the plant lighting system according to the present invention, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an LED driving circuit for plant illumination according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a control method of a plant lighting system according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of another control method for a plant lighting system according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a control method for reducing a duty cycle of a control tube of a plant lighting system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a control device of a plant lighting system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a control terminal of a plant lighting system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Referring to fig. 1, fig. 1 shows a driving circuit for implementing the solution of the present invention, as shown in fig. 1, the driving circuit includes a constant voltage power supply 1, a control terminal 2, and at least two LED load branches 3: the control terminal is a control terminal of the plant lighting system;
each two paths of the LED load branches 3 are connected in parallel, and each path of the LED load branch 3 is connected with the constant voltage power supply 1 in series;
the LED load branch 3 comprises a current limiting module 310 and at least two LED lamps 320, wherein each LED lamp 320 is connected in series with the current limiting module 310;
specifically, every two LED lamps 320 are connected in series;
the current limiting module 310 is electrically connected to the control terminal 2.
The control terminal 2 may comprise a display screen, a storage device and a processor connected by a data bus. The display screen is used for displaying an operation interface or interacting with a user and the like, and the display screen can be a touch screen of a vehicle machine, a mobile phone or a tablet computer and the like. The storage device is used for storing program codes, data and data of the shooting device, and the storage device may be a memory of the control terminal 2, and may also be a storage device such as a smart media card (smart media card), a secure digital card (secure digital card), and a flash memory card (flash card). The processor may be a single core or multi-core processor.
The following describes a control method of the LED driving circuit based on the plant lighting system, which can be applied to the field of plant lighting, with reference to fig. 2.
Referring to fig. 2, there is shown a schematic flow chart of a control method for a plant lighting system according to an embodiment of the present invention, the present specification provides the method steps as described in the embodiment or the flow chart, but based on the conventional method; or the inventive process may include additional or fewer steps. The sequence of steps listed in the examples is only one of many steps performed in sequence and does not represent the only order of execution, and the method of controlling a plant lighting system may be performed in the order of the method shown in the examples or figures. Specifically, as shown in fig. 2, the method includes: the method is used for controlling the LED driving circuit for plant illumination as described above;
s201, acquiring a lamp voltage corresponding to each LED load branch and a preset voltage value of the load branch, wherein the lamp voltage is the total serial voltage of each LED lamp in the LED load branches;
it should be noted that, in the embodiment of the present specification, the lamp voltage may be a total serial voltage of all the LED lamps in each load branch, where one lamp voltage corresponds to one LED load branch;
in this embodiment, the lamp voltage of the LED load branch may be a sum of voltages exhibited by all LED lamps in the LED load branch when rated current flows through the LED load branch;
in an embodiment of the present specification, in a plurality of LED load branches in the driving circuit, a lamp voltage corresponding to at least one LED load branch is lower than a preset voltage value of the load branch.
S203, according to the preset voltage value of the load branch circuit, determining a target lamp voltage meeting a first preset condition from all lamp voltages, and determining a target LED load branch circuit corresponding to the target lamp voltage;
in the embodiment of the present specification, each obtained lamp voltage is respectively compared with a preset voltage value of a load branch, so as to determine a target lamp voltage meeting a first preset condition from all the lamp voltages;
the first preset condition may be that the voltage value of the lamp voltage is lower than the preset voltage value of the load branch;
namely, the voltage value of the target lamp voltage is lower than the preset voltage value of the load branch circuit;
and after the target lamp voltage is determined, determining a target LED load branch circuit corresponding to the target lamp voltage according to the corresponding relation between the lamp voltage and the LED load branch circuits, wherein the target lamp voltage at least comprises one target LED load branch circuit.
S205, controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length;
in this embodiment of the present specification, when the current limiting value of an LED load branch needs to be increased according to a preset step length, the current limiting value obtained by increasing the current limiting value corresponding to the LED load branch by a preset step length current value needs to be compared with a preset current limiting value threshold, and if the current limiting value obtained by increasing the current limiting value corresponding to the LED load branch by the preset step length current value is less than or equal to the preset current limiting value threshold, the current limiting value corresponding to the LED load branch is increased by the preset step length current value.
In the embodiment of the present specification, the preset current limit value threshold is related to the power of the LED load branch.
Specifically, in the embodiment of the present specification, after a target LED load branch is determined, a current limiting value of the target LED load branch is obtained, and a first target current limiting value obtained by increasing the current limiting value of the target LED load branch by a preset step current value is compared with a preset current limiting value threshold value to obtain a first comparison result;
judging whether the first comparison result meets a second preset condition or not;
in this embodiment of the present specification, the second preset condition may be that the first target restriction value is less than or equal to a preset restriction value threshold;
and if so, controlling the current flow limiting value to be increased to a first target flow limiting value according to a preset step length.
In the embodiment of the present specification, if the first comparison result meets the second preset condition, that is, the first target restriction value is less than or equal to the preset restriction value threshold; and controlling the current flow limiting value to be increased to a first target flow limiting value according to a preset step length.
In an embodiment of the present specification, if the first comparison result does not satisfy the second preset condition, that is, the first target current limiting value is greater than the preset current limiting value threshold, the target LED load branch is controlled to operate at the current limiting value, and the current limiting module is controlled to operate in the preset operating mode; and the preset working mode is an on-off mode.
When the current limiting module works in an on-off mode, a control tube in the current limiting module works in an on-off circulation mode;
in the embodiment of the present specification, increasing the current limiting value can increase the brightness of the LED lamp in the LED load branch, that is, increase the power of the LED load branch; when the current limiting value in the current limiting module is increased, the driving voltage of the control tube is increased, so that the impedance of the control tube is reduced, and the impedance at two ends of the current limiting module can be controlled to be reduced.
S207, determining a first LED load branch corresponding to a first target current limiting value, and acquiring first loss data of the current limiting module in the first LED load branch;
the first LED load branch may be a load branch after the current limiting value of the target LED load branch is increased to the first target current limiting value; the number of the first LED load branches corresponds to the number of the target LED load branches one to one.
In an embodiment of the present specification, the obtaining of the first loss data may include the steps of:
acquiring a first current value of the first LED load branch and a first voltage value at two ends of the current limiting module in the first LED load branch;
in this specification embodiment, the first current value may be a real-time current value of the first LED load branch;
in the embodiment of the specification, the real-time current values of two ends of an Rs resistor in a current limiting module in a current-limiting LED load branch circuit are detected, and the real-time current values of two ends of the Rs resistor are used as first current values;
and calculating first loss data of the current limiting module according to the first current value and the first voltage value.
In the present specification embodiment, the first loss data may be a result of multiplying the first current value and the first voltage value;
specifically, the first loss value obtained by calculation may actually be a power value of a control tube in the current limiting module, and since the loss value of the control tube occupies most of the loss of the current limiting module, the loss of other devices in the current limiting module may be ignored.
S209, judging whether the first loss data is lower than a preset loss value;
s211, if yes, controlling the first LED load branch to work at the first target current limiting value;
in an embodiment of the present disclosure, if first loss data of the current limiting module in the first LED load branch is lower than preset loss data; controlling the first LED load branch to work at the first target current limiting value.
In an embodiment of this specification, as shown in fig. 3, a flow chart of a control method of another plant lighting system provided by the embodiment of the present invention is shown, specifically, the method includes the following steps:
s301, acquiring a lamp voltage corresponding to each LED load branch and a preset voltage value of the load branch, wherein the lamp voltage is the total serial voltage of each LED lamp in the LED load branch;
s303, determining a target lamp voltage meeting a first preset condition from all lamp voltages according to the preset voltage value of the load branch circuit, and determining a target LED load branch circuit corresponding to the target lamp voltage;
s305, controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length;
s307, determining a first LED load branch corresponding to a first target current limiting value, and acquiring first loss data of the current limiting module in the first LED load branch;
s309, judging whether the first loss data is lower than a preset loss value;
s311, if the first loss data is not lower than a preset loss value, controlling the first target current limiting value to be increased to a second target current limiting value according to a preset step length;
in an embodiment of the present specification, controlling the first target restriction value to increase to the second target restriction value according to the preset step size includes the following steps:
specifically, in the embodiment of the present specification, after it is determined that first loss data of the current limiting module in the first LED load branch is not lower than a preset loss value, a second target current limiting value obtained by increasing a preset step current value to a first target current limiting value of the first LED load branch is compared with a preset current limiting value threshold, so as to obtain a second comparison result;
judging whether the second comparison result meets a third preset condition or not;
in this embodiment of the present specification, the third preset condition may be that the second target restriction value is less than or equal to a preset restriction value threshold;
and if so, controlling the first target flow limiting value to be increased to a second target flow limiting value according to a preset step length.
In the embodiment of the present specification, if the second comparison result meets the third preset condition, that is, the second target restriction value is less than or equal to the preset restriction value threshold; and controlling the first target restriction flow value to be increased to a second target restriction flow value according to a preset step length.
In this embodiment of the present specification, if the second comparison result does not satisfy the third preset condition, that is, the second target current limiting value is greater than the preset current limiting value threshold, the first LED load branch is controlled to operate at the first target current limiting value, and the current limiting module is controlled to operate in the preset operating mode; and the preset working mode is an on-off mode.
S313, determining a second LED load branch corresponding to a second target current limiting value, and acquiring second loss data of the current limiting module in the second LED load branch;
the second LED load branch may be an LED load branch having loss data selected from the at least one first LED load branch not lower than a preset loss value;
in an embodiment of the present specification, the obtaining of the second loss data may include the steps of:
acquiring a second current value of the second LED load branch and a second voltage value at two ends of the current limiting module in the second LED load branch;
in this specification embodiment, the second current value may be a real-time current value of the second LED load branch;
and calculating second loss data of the current limiting module according to the second current value and the second voltage value.
In the present specification embodiment, the second loss data may be a result of multiplying the second current value and the second voltage value;
s315, judging whether the second loss data is lower than a preset loss value;
s317, if not, controlling the current limiting module in the second LED load branch circuit to work in a preset working mode; and the preset working mode is an on-off mode.
In this embodiment, if the second loss data is lower than a preset loss value, the second LED load branch is controlled to operate at the second target current limiting value.
In an embodiment of this specification, as shown in fig. 4, a flowchart of a control method for reducing a duty ratio of a control tube of a plant lighting system according to an embodiment of the present invention is shown, and specifically, after controlling a current limiting module in the second LED load branch to operate in a preset operation mode, the method further includes the following steps:
s401, determining a third LED load branch working in a preset working mode, and acquiring third loss data when a control tube in the current limiting module in the third LED load branch is in a conducting state;
the third LED load branch may be an LED load branch that operates the current limiting module in the second LED load in the on-off mode.
In an embodiment of the present specification, the obtaining of the third loss data may include the steps of:
acquiring a third current value of a third LED load branch when the control tube is in a conducting state and a third voltage value at two ends of the current limiting module in the second LED load branch when the control tube is in the conducting state;
in this embodiment, the third current value may be a real-time current value of the third LED load branch when the control tube is in a conducting state;
and calculating second loss data of the current limiting module according to the third current value and the third voltage value.
In the present specification embodiment, the third loss data may be a result of multiplying the third current value and the third voltage value;
s403, judging whether the third loss data is lower than a preset loss value;
s405, if not, reducing the duty ratio of the control tube.
In another embodiment of this specification, in a process in which a control tube in the current limiting module is in a conducting state, the method further includes:
obtaining a current value and a third target current limiting value in the third LED load branch;
in this embodiment, the current value in the third LED load branch may be a real-time current value of the third LED load branch when the control tube is in a conducting state;
judging whether the current value is higher than a third target current limiting value or not;
if yes, increasing the impedance of the control tube;
in the embodiment of the specification, the impedance of the control tube is increased to reduce the real-time current value in the third LED load branch; so that the current value is less than or equal to the third target current limit value.
As can be seen from the embodiments of the control method, the control device and the control terminal of the plant lighting system provided by the invention, the embodiment of the invention obtains the lamp voltage corresponding to each LED load branch and the preset voltage value of the load branch, wherein the lamp voltage is the total series voltage of each LED lamp in the LED load branch; determining a target lamp voltage meeting a first preset condition from all lamp voltages according to the preset voltage value of the load branch circuit, and determining a target LED load branch circuit corresponding to the target lamp voltage; controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length; determining a first LED load branch corresponding to a first target current limiting value, and acquiring first loss data of the current limiting module in the first LED load branch; judging whether the first loss data is lower than a preset loss value or not; if so, controlling the first LED load branch to work at the first target current limiting value; by utilizing the technical scheme provided by the embodiment of the specification, the current limiting value of the LED load branch is set, and the current limiting value of the LED load branch is controlled to gradually rise, so that the loss of the LED load branch caused by lower lamp voltage is reduced, the output voltage of the set constant voltage power supply can be higher by the driving circuit of the application, the loss of the current limiting module in the load branch with lower lamp voltage of the original LED is reduced, the loss of the whole lighting system is reduced, and the efficiency of the lighting system is improved.
An embodiment of the present invention further provides a control device of a plant lighting system, as shown in fig. 5, which is a schematic structural diagram of the control device of the plant lighting system provided in the embodiment of the present invention; specifically, the plant lighting system comprises at least two LED load branches, wherein each LED load branch comprises a current limiting module and at least two LED lamps; the device comprises:
a voltage obtaining module 510, configured to obtain a lamp voltage corresponding to each LED load branch and a preset voltage value of the load branch, where the lamp voltage is a total series voltage of each LED lamp in the LED load branch;
a first determining module 520, configured to determine, according to the preset voltage value of the load branch, a target lamp voltage meeting a first preset condition from all lamp voltages, and determine a target LED load branch corresponding to the target lamp voltage;
a first control module 530, configured to control a current limiting value of the target LED load branch to increase to a first target current limiting value according to a preset step length;
a second determining module 540, configured to determine a first LED load branch corresponding to a first target current limiting value, and obtain first loss data of the current limiting module in the first LED load branch;
a first determining module 550, configured to determine whether the first loss data is lower than a preset loss value;
the second control module 560 is configured to control the first LED load branch to operate at the first target current limiting value if the first loss data is the first preset loss value.
In the embodiment of this specification, still include:
the third control module is used for controlling the first target current limiting value to be increased to a second target current limiting value according to a preset step length if the first loss data is not lower than a preset loss value;
the third determining module is used for determining a second LED load branch corresponding to a second target current limiting value and acquiring second loss data of the current limiting module in the second LED load branch;
the second judgment module is used for judging whether the second loss data is lower than a preset loss value or not;
the fourth control module is used for controlling the current limiting module in the second LED load branch circuit to work in a preset working mode if the second loss data is not lower than a preset loss value; and the preset working mode is an on-off mode.
In the embodiment of this specification, still include:
the fourth determining module is used for determining a third LED load branch circuit working in a preset working mode and acquiring third loss data when a control tube in the current limiting module in the third LED load branch circuit is in a conducting state;
the third judging module is used for judging whether the third loss data is lower than a preset loss value or not;
and the fifth control module is used for reducing the duty ratio of the control tube if the third loss data is not lower than a preset loss value.
In the embodiment of this specification, still include:
the first obtaining unit is used for obtaining a current value and a third target current limiting value in the third LED load branch circuit;
the first judgment unit is used for judging whether the current value is higher than a third target current limiting value or not;
and the first control unit is used for increasing the impedance of the control tube if the current value is higher than a third target current limiting value.
In an embodiment of the present specification, the second determining module 540 includes:
the second obtaining unit is used for obtaining a first current value of the first LED load branch circuit and a first voltage value at two ends of the current limiting module in the first LED load branch circuit;
and the calculating unit is used for calculating first loss data of the current limiting module according to the first current value and the first voltage value.
In this illustrative embodiment, the first control module 530 includes:
the comparison unit is used for comparing a first target current limiting value obtained by increasing a preset step current value to the current limiting value of the target LED load branch with a preset current limiting value threshold value to obtain a first comparison result;
a second judging unit, configured to judge whether the first comparison result satisfies a second preset condition;
and the second control unit is used for controlling the current flow limiting value to be increased to the first target flow limiting value according to the preset step length if the first comparison result meets a second preset condition.
In this embodiment, the first control module 530 further includes:
the third control unit is used for controlling the target LED load branch to work at the current limiting value and controlling the current limiting module to work in a preset working mode if the first comparison result does not meet a second preset condition; and the preset working mode is an on-off mode.
The embodiment of the present invention provides a control terminal of a plant lighting system, where the terminal includes a processor and a memory, where the memory stores at least one instruction or at least one program, and the at least one instruction or the at least one program is loaded and executed by the processor to implement the control method of the plant lighting system according to the above method embodiment.
The memory may be used to store software programs and modules, and the processor may execute various functional applications and data processing by operating the software programs and modules stored in the memory. The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system, application programs needed by functions and the like; the storage data area may store data created according to use of the apparatus, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory may also include a memory controller to provide the processor access to the memory.
Fig. 6 is a schematic structural diagram of a control terminal of a plant lighting system according to an embodiment of the present invention, where the internal configuration of the control terminal of the plant lighting system may include, but is not limited to: the processor, the network interface and the memory in the control terminal of the plant lighting system may be connected by a bus or in other ways, and the bus connection is taken as an example in fig. 6 shown in the embodiment of the present specification.
The processor (or CPU) is a computing core and a control core of the control terminal of the plant lighting system. The network interface may optionally include a standard wired interface, a wireless interface (e.g., WI-FI, mobile communication interface, etc.). The Memory (Memory) is a Memory device in the control terminal of the plant lighting system for storing programs and data. It is understood that the memory herein may be a high-speed RAM storage device, or may be a non-volatile storage device (non-volatile memory), such as at least one magnetic disk storage device; optionally, at least one memory device located remotely from the processor. The memory provides a storage space storing an operating system of a control terminal of the plant lighting system, which may include, but is not limited to: windows system (an operating system), Linux (an operating system), etc., which are not limited thereto; also, one or more instructions, which may be one or more computer programs (including program code), are stored in the memory space and are adapted to be loaded and executed by the processor. In this embodiment of the present specification, the processor loads and executes one or more instructions stored in the memory to implement the LED driving circuit for plant illumination provided in the above method embodiment.
Embodiments of the present invention also provide a computer-readable storage medium, which may be disposed in a control terminal of a plant lighting system to store at least one instruction, at least one program, a code set, or a set of instructions related to implementing an LED driving circuit for plant lighting in the method embodiments, where the at least one instruction, the at least one program, the code set, or the set of instructions may be loaded and executed by a processor of an electronic device to implement the control method of the plant lighting system provided in the above method embodiments.
Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
It should be noted that: the precedence order of the above embodiments of the present invention is only for description, and does not represent the merits of the embodiments. And specific embodiments thereof have been described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the device and server embodiments, since they are substantially similar to the method embodiments, the description is simple, and the relevant points can be referred to the partial description of the method embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A method of controlling a plant lighting system, comprising: the plant lighting system comprises at least two paths of LED load branches, wherein each LED load branch comprises a current limiting module and at least two LED lamps; the method comprises the following steps:
acquiring a lamp voltage corresponding to each LED load branch and a preset voltage value of the load branch, wherein the lamp voltage is the total serial voltage of each LED lamp in the LED load branch;
determining a target lamp voltage meeting a first preset condition from all lamp voltages according to the preset voltage value of the load branch circuit, and determining a target LED load branch circuit corresponding to the target lamp voltage;
controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length;
determining a first LED load branch corresponding to a first target current limiting value, and acquiring first loss data of the current limiting module in the first LED load branch;
judging whether the first loss data is lower than a preset loss value or not;
and if so, controlling the first LED load branch to work at the first target current limiting value.
2. The method of controlling a plant lighting system according to claim 1, wherein: further comprising:
if the first loss data is not lower than a preset loss value, controlling the first target current limiting value to be increased to a second target current limiting value according to a preset step length;
determining a second LED load branch corresponding to a second target current limiting value, and acquiring second loss data of the current limiting module in the second LED load branch;
judging whether the second loss data is lower than a preset loss value or not;
if not, controlling a current limiting module in the second LED load branch circuit to work in a preset working mode; and the preset working mode is an on-off mode.
3. The method of controlling a plant lighting system according to claim 2, wherein: after controlling the current limiting module in the second LED load branch to operate in a preset operating mode, the method further includes:
determining a third LED load branch working in a preset working mode, and acquiring third loss data when a control tube in the current limiting module in the third LED load branch is in a conducting state;
judging whether the third loss data is lower than a preset loss value or not;
if not, reducing the duty ratio of the control tube.
4. The method of controlling a plant lighting system according to claim 3, wherein: in the process that a control tube in the current limiting module is in a conducting state, the method further comprises the following steps:
obtaining a current value and a third target current limiting value in the third LED load branch;
judging whether the current value is higher than a third target current limiting value or not;
and if so, increasing the impedance of the control tube.
5. The method of controlling a plant lighting system according to claim 1, wherein: the obtaining first loss data of the current limiting module in the first LED load branch includes:
acquiring a first current value of the first LED load branch and a first voltage value at two ends of the current limiting module in the first LED load branch;
and calculating first loss data of the current limiting module according to the first current value and the first voltage value.
6. The method of controlling a plant lighting system according to claim 1, wherein: the controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length comprises the following steps:
comparing a first target current limiting value obtained by increasing a preset step current value to a current limiting value of the target LED load branch with a preset current limiting value threshold value to obtain a first comparison result;
judging whether the first comparison result meets a second preset condition or not;
and if so, controlling the current flow limiting value to be increased to a first target flow limiting value according to a preset step length.
7. The method for controlling a plant lighting system according to any one of claims 6, further comprising:
if the first comparison result does not meet a second preset condition, controlling the target LED load branch to work at the current limiting value, and controlling the current limiting module to work in a preset working mode; and the preset working mode is an on-off mode.
8. A control device for a plant lighting system, characterized by: the plant lighting system comprises at least two paths of LED load branches, wherein each LED load branch comprises a current limiting module and at least two LED lamps; the device comprises:
the voltage acquisition module is used for acquiring a lamp voltage corresponding to each LED load branch and a preset voltage value of the load branch, wherein the lamp voltage is the total serial voltage of each LED lamp in the LED load branches;
the first determining module is used for determining a target lamp voltage meeting a first preset condition from all lamp voltages according to the preset voltage value of the load branch circuit, and determining a target LED load branch circuit corresponding to the target lamp voltage;
the first control module is used for controlling the current limiting value of the target LED load branch to be increased to a first target current limiting value according to a preset step length;
the second determining module is used for determining a first LED load branch corresponding to a first target current limiting value and acquiring first loss data of the current limiting module in the first LED load branch;
the first judging module is used for judging whether the first loss data is lower than a preset loss value or not;
and the second control module is used for controlling the first LED load branch to work at the first target current limiting value if the first loss data is a first preset loss value.
9. A control terminal for a plant lighting system, characterized by: the terminal comprises a processor and a memory, wherein at least one instruction or at least one program is stored in the memory, and the at least one instruction or the at least one program is loaded by the processor and executed to realize the control method of the plant lighting system according to any one of claims 1 to 7.
10. An LED drive circuit of a plant lighting system, characterized in that: the LED constant-voltage power supply comprises a constant-voltage power supply, a control terminal and at least two LED load branches; the control terminal is the control terminal of the plant lighting system of claim 9;
each two paths of LED load branches are connected in parallel, and each path of LED load branch is connected with a constant voltage power supply in series;
the LED load branch comprises a current limiting module and at least two LED lamps, and the LED lamps and the current limiting module are connected in series;
the current limiting module is electrically connected with the control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110633185.XA CN113473677B (en) | 2021-06-07 | 2021-06-07 | Control method, device, terminal and driving circuit of plant lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110633185.XA CN113473677B (en) | 2021-06-07 | 2021-06-07 | Control method, device, terminal and driving circuit of plant lighting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113473677A true CN113473677A (en) | 2021-10-01 |
| CN113473677B CN113473677B (en) | 2023-10-13 |
Family
ID=77868680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110633185.XA Active CN113473677B (en) | 2021-06-07 | 2021-06-07 | Control method, device, terminal and driving circuit of plant lighting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113473677B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114340086A (en) * | 2022-01-14 | 2022-04-12 | 英飞特电子（杭州）股份有限公司 | Lighting system, target voltage value determination method, system and related assembly |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264173A (en) * | 2010-05-31 | 2011-11-30 | 英飞特电子（杭州）有限公司 | LED (light emitting diode) constant current driving circuit and output-voltage-adjustable circuit |
| CN102548109A (en) * | 2010-12-30 | 2012-07-04 | 英飞特电子（杭州）有限公司 | Load driving device and system |
| US20120313541A1 (en) * | 2010-02-26 | 2012-12-13 | Shunji Egawa | Led driving circuit |
| CN102833903A (en) * | 2011-06-14 | 2012-12-19 | 英飞特电子（杭州）股份有限公司 | Load drive circuit |
| CN103108434A (en) * | 2011-11-14 | 2013-05-15 | 英飞特电子（杭州）股份有限公司 | Load drive circuit |
| US20140292219A1 (en) * | 2013-03-26 | 2014-10-02 | Minebea Co., Ltd. | Power-supply device and illumination device |
| CN107888063A (en) * | 2018-02-11 | 2018-04-06 | 漳州科华技术有限责任公司 | A kind of output current peak factor method and device for improving inverter |
| TWI662778B (en) * | 2017-12-29 | 2019-06-11 | 技嘉科技股份有限公司 | Power Supply Having Adjustable Power Output Limitation And Method for Adjusting Power Output Limitation |
| CN109888755A (en) * | 2019-03-22 | 2019-06-14 | 广东电网有限责任公司 | A kind of power grid superconductive current limiter optimal configuration method, device and equipment |
| CN109995225A (en) * | 2017-12-29 | 2019-07-09 | 技嘉科技股份有限公司 | The power supply unit of adjustable power consumption limitation and the method for adjusting power consumption limit |
| CN111988234A (en) * | 2019-05-23 | 2020-11-24 | 厦门网宿有限公司 | Overload protection method, device, server and storage medium |
-
2021
- 2021-06-07 CN CN202110633185.XA patent/CN113473677B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120313541A1 (en) * | 2010-02-26 | 2012-12-13 | Shunji Egawa | Led driving circuit |
| CN102264173A (en) * | 2010-05-31 | 2011-11-30 | 英飞特电子（杭州）有限公司 | LED (light emitting diode) constant current driving circuit and output-voltage-adjustable circuit |
| CN102548109A (en) * | 2010-12-30 | 2012-07-04 | 英飞特电子（杭州）有限公司 | Load driving device and system |
| CN102833903A (en) * | 2011-06-14 | 2012-12-19 | 英飞特电子（杭州）股份有限公司 | Load drive circuit |
| CN103108434A (en) * | 2011-11-14 | 2013-05-15 | 英飞特电子（杭州）股份有限公司 | Load drive circuit |
| US20140292219A1 (en) * | 2013-03-26 | 2014-10-02 | Minebea Co., Ltd. | Power-supply device and illumination device |
| TWI662778B (en) * | 2017-12-29 | 2019-06-11 | 技嘉科技股份有限公司 | Power Supply Having Adjustable Power Output Limitation And Method for Adjusting Power Output Limitation |
| CN109995225A (en) * | 2017-12-29 | 2019-07-09 | 技嘉科技股份有限公司 | The power supply unit of adjustable power consumption limitation and the method for adjusting power consumption limit |
| CN107888063A (en) * | 2018-02-11 | 2018-04-06 | 漳州科华技术有限责任公司 | A kind of output current peak factor method and device for improving inverter |
| CN109888755A (en) * | 2019-03-22 | 2019-06-14 | 广东电网有限责任公司 | A kind of power grid superconductive current limiter optimal configuration method, device and equipment |
| CN111988234A (en) * | 2019-05-23 | 2020-11-24 | 厦门网宿有限公司 | Overload protection method, device, server and storage medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114340086A (en) * | 2022-01-14 | 2022-04-12 | 英飞特电子（杭州）股份有限公司 | Lighting system, target voltage value determination method, system and related assembly |
| CN114340086B (en) * | 2022-01-14 | 2024-04-09 | 英飞特电子（杭州）股份有限公司 | Lighting system, target voltage value determining method and system and related components |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113473677B (en) | 2023-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113473676A (en) | Control method and device of LED driving circuit for plant illumination and terminal | |
| US10374450B2 (en) | Battery charging method and electronic device | |
| CN109859721A (en) | Brightness of display screen adjusting method, device, mobile terminal and storage medium | |
| CN110707982B (en) | Control method, device and equipment of electronic equipment and storage medium | |
| CN104683702A (en) | Method and device for supplementing light during photographing as well as mobile terminal | |
| CN107482713B (en) | Charging device, charging system and charging control method | |
| CN113473677B (en) | Control method, device, terminal and driving circuit of plant lighting system | |
| CN105531642A (en) | Power managing method and electronic system applying the power managing method | |
| CN105450870A (en) | Method and device for adjusting brightness of mobile terminal | |
| EP3478029A1 (en) | Dimming processing system for led lamps | |
| CN110750148A (en) | Terminal, temperature control method thereof, and computer-readable storage medium | |
| CN110737322A (en) | Information processing method and electronic equipment | |
| CN113498992A (en) | Towel rack, automatic temperature adjusting method and device thereof, and storage medium | |
| CN104376835A (en) | Method for adjusting brightness and electronic device | |
| CN103730099A (en) | Backlight intensity adjusting method and electronic device | |
| CN104517587A (en) | On-screen display method and electronic equipment | |
| CN116225202B (en) | Power consumption control method and device for GPU, electronic equipment and storage medium | |
| CN104570357A (en) | Radiograph observation instrument capable of being automatically switched on/off | |
| CN109587774B (en) | Energy efficiency control method, control device and communication equipment | |
| CN113346602B (en) | Display element control method, device, apparatus, medium, and program product | |
| CN114443445B (en) | Hard disk lighting method and device, electronic equipment and storage medium | |
| CN107329537B (en) | A kind of electrification control method and device | |
| CN105095252A (en) | File management method and system | |
| CN104578275A (en) | Charging method and electronic equipment | |
| CN112306213B (en) | Display card mode switching method and device based on terminal, storage medium and terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |