CN112637993A - Dimming control system and working method thereof - Google Patents
Dimming control system and working method thereof Download PDFInfo
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- CN112637993A CN112637993A CN202011427441.1A CN202011427441A CN112637993A CN 112637993 A CN112637993 A CN 112637993A CN 202011427441 A CN202011427441 A CN 202011427441A CN 112637993 A CN112637993 A CN 112637993A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 238000004891 communication Methods 0.000 claims abstract description 23
- 239000003086 colorant Substances 0.000 claims description 4
- 238000011017 operating method Methods 0.000 claims description 3
- 238000004590 computer program Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 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
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- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/18—Controlling the light source by remote control via data-bus transmission
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to a dimming control system and a working method thereof, wherein the system comprises a dimming controller, a signal conversion box, a contactor and LED driving chips, wherein the dimming controller, the signal conversion box, the contactor and the LED driving chips are sequentially connected, and the LED driving chips are used for driving an LED lamp; the dimming controller is used for sending a dimming signal; the signal conversion box is used for judging the power failure condition in the preset time according to the dimming signal and sending a power failure signal to the LED driving chip; the contactor is used for being connected between the signal conversion box and the LED driving chip; the LED driving chip is used for controlling the color of LED light according to the power-down signal. The invention realizes the control of the LED driver by adding a signal conversion box at the input end and converting the signal of the dimming controller into an input voltage signal through an internal circuit. Compared with a common dimming system, the system not only keeps the communication mode of the existing dimming controller, but also removes a dimming line from the dimming controller to an LED driver.
Description
Technical Field
The invention belongs to the technical field of dimming control, and particularly relates to a dimming control system and a working method thereof.
Background
With economic development and scientific progress, LED lighting has pulled the development of the LED industry due to its unique appeal and great potential; because the working voltage and current of the LED lamp need to be strictly controlled to meet the requirements of working characteristics, reliability and high efficiency, a special driving power supply is required to be matched with the common LED lamp. And users have different requirements for the illumination of the light source at different times.
In the related art, there are many dimming control modes in the LED field, wherein the use of the communication line in the practical application process of the long-distance wired communication causes great difficulty and hidden quality trouble for installation and use.
Disclosure of Invention
In view of the above, an object of the present invention is to overcome the deficiencies of the prior art, and provide a dimming control system and a working method thereof, so as to solve the problem that the market stability analysis mainly based on the qualitative analysis in the prior art is difficult to handle the complex decision in the power market.
In order to achieve the purpose, the invention adopts the following technical scheme: a dimming control system comprising:
the LED lamp comprises a dimming controller, a signal conversion box, a contactor and a plurality of LED driving chips, wherein the dimming controller, the signal conversion box, the contactor and the plurality of LED driving chips are sequentially connected, and the plurality of LED driving chips are used for driving the LED lamp;
the dimming controller is used for sending a dimming signal;
the signal conversion box is used for judging a power failure condition in a preset time according to the dimming signal and sending a power failure signal to the LED driving chip;
the contactor is used for being connected between the signal conversion box and the LED driving chip;
and the LED driving chip is used for controlling the color of LED light according to the power-down signal.
Further, the signal conversion box comprises:
the communication module, the singlechip and the relay;
one end of the communication module is connected with the dimming controller, the other end of the communication module is connected with one end of the single chip microcomputer, the other end of the single chip microcomputer is connected with the relay, and the relay is connected with the contactor.
Further, the communication module adopts:
and an RS485 module.
Further, the power module is used for providing electric energy for the dimming control system.
The embodiment of the application provides a working method of a dimming control system, which comprises the following steps:
acquiring a dimming signal;
judging a power failure condition within a preset time according to the dimming signal, and sending a power failure signal to the LED driving chip;
and controlling the color of the LED light according to the power-down signal or the power-off-failure signal.
Further, the obtaining the dimming signal includes:
presetting two dimming colors; the dimming color comprises: red light and white light;
and acquiring a red light dimming signal or a white light dimming signal.
Further, the controlling the on-off of the relay within the preset time according to the dimming signal includes:
receiving the dimming signal through the communication module, decoding and sending the dimming signal to the single chip microcomputer;
and the singlechip controls the on-off state of the relay according to the dimming signal and sends a power failure signal to the LED driving chip.
Further, the singlechip controls the on-off state of the relay according to the dimming signal, and the method includes:
when the dimming signal is a white light dimming signal, the single chip microcomputer controls the relay to be closed within a preset time;
when the dimming signal is a red dimming signal, the single chip microcomputer controls the relay to be disconnected for 1 second and then to be closed within the preset time.
Further, the controlling the color of the LED light according to the power-down signal or the power-off failure signal includes:
if the signal is a power-down signal, the white LED lamp is turned on;
and if the power failure signal is not the power failure signal, the red LED lamp is lightened.
Further, the preset time is 10 seconds.
By adopting the technical scheme, the invention can achieve the following beneficial effects:
the invention provides a dimming control system and a working method thereof, wherein the system comprises a dimming controller, a signal conversion box, a contactor and LED driving chips, wherein the dimming controller, the signal conversion box, the contactor and the LED driving chips are sequentially connected, and the LED driving chips are used for driving an LED lamp; the dimming controller is used for sending a dimming signal; the signal conversion box is used for judging the power failure condition in the preset time according to the dimming signal and sending a power failure signal to the LED driving chip; the contactor is connected between the signal conversion box and the LED driving chip; the LED driving chip is used for controlling the color of LED light according to the power-down signal. The invention realizes the control of the LED driver by adding a signal conversion box at the input end and converting the signal of the dimming controller into an input voltage signal through an internal circuit. The application not only reserves the communication mode of the existing dimming controller, but also removes the dimming line from the dimming controller to the LED driver, so that the structure is simpler, and the use is safer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a dimming control system according to the present invention;
FIG. 2 is a schematic diagram of a signal conversion box according to the present invention;
fig. 3 is a flow chart illustrating a working method of the dimming control system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
A specific dimming control system and an operating method thereof provided in the embodiments of the present application are described below with reference to the accompanying drawings.
As shown in fig. 1, the dimming control system provided in the embodiment of the present application includes:
the LED lamp comprises a dimming controller, a signal conversion box, a contactor and a plurality of LED driving chips, wherein the dimming controller, the signal conversion box, the contactor and the plurality of LED driving chips are sequentially connected, and the plurality of LED driving chips are used for driving the LED lamp;
the dimming controller is used for sending a dimming signal;
the signal conversion box is used for judging a power failure condition in a preset time according to the dimming signal and sending a power failure signal to the LED driving chip;
the contactor is connected between the signal conversion box and the LED driving chip;
and the LED driving chip is used for controlling the color of LED light according to the power-down signal.
Specifically, the control system mainly realizes the control of the LED driver by adding a signal conversion box at the input line end and converting the dimming controller signal into an input voltage signal through an internal circuit. Compared with the existing dimming system, the system not only keeps the communication mode of the existing dimming controller, but also removes the dimming line from the dimming controller to the LED driver. As shown in fig. 1, in the dimming process, a user can change a dimming signal of a dimming controller, the dimming controller sends the dimming signal to a signal conversion box, at the moment, the signal conversion box controls the on-off of a relay according to the signal given by the dimming controller through an internal single chip microcomputer so as to realize the on-off of an input power supply, an LED driver detects an input voltage within 10 seconds of power-on, when a power-off condition is detected, a dimming mode is realized, and if a power-off condition is not detected, another dimming mode is realized.
In some embodiments, as shown in fig. 2, the signal conversion box comprises:
the communication module, the singlechip and the relay;
one end of the communication module is connected with the dimming controller, the other end of the communication module is connected with one end of the single chip microcomputer, the other end of the single chip microcomputer is connected with the relay, and the relay is connected with the contactor.
Preferably, the communication module adopts: and an RS485 module.
Preferably, the method further comprises the following steps:
and the power supply module is used for supplying electric energy to the dimming control system.
As shown in fig. 3, the present application provides an operating method of a dimming control system, including:
s101, acquiring a dimming signal;
s102, judging a power failure condition in a preset time according to the dimming signal, and sending a power failure signal to the LED driving chip;
and S103, controlling the color of the LED light according to the power failure signal or the power failure signal.
The working principle of the working method of the dimming control system provided by the application is that the dimming controller is used for sending a dimming signal; after the signal conversion box acquires the dimming signal, judging the power failure condition within a preset time according to the dimming signal, and sending a power failure signal to the LED driving chip; the LED driving chip is used for controlling the color of LED light according to the power-down signal.
The obtaining of the dimming signal comprises:
presetting two dimming colors; the dimming color comprises: red light and white light;
and acquiring a red light dimming signal or a white light dimming signal.
It is understood that the dimming color may also include other colors, red light and white light are taken as examples in this application, and the application does not limit the color of the lamp light.
In some embodiments, the controlling the on/off of the relay within the preset time according to the dimming signal includes:
receiving the dimming signal through the communication module, decoding and sending the dimming signal to the single chip microcomputer;
and the singlechip controls the on-off state of the relay according to the dimming signal and sends a power failure signal to the LED driving chip.
Preferably, the single chip microcomputer controls the on-off state of the relay according to the dimming signal, and the method includes:
when the dimming signal is a white light dimming signal, the single chip microcomputer controls the relay to be closed within a preset time;
when the dimming signal is a red dimming signal, the single chip microcomputer controls the relay to be disconnected for 1 second and then to be closed within the preset time.
Preferably, the controlling the color of the LED light according to the power-down signal or the power-off-free signal includes:
if the signal is a power-down signal, the white LED lamp is turned on;
and if the power failure signal is not the power failure signal, the red LED lamp is lightened.
Preferably, the preset time is 10 seconds.
It can be understood that the preset time in the present application can be set as needed, and the present application is not described herein again.
In one embodiment, for example, RS485 communication, the LED driver has two dimming schemes, one red and one white. The signal conversion box needs to be powered on simultaneously with the LED river general gate. When the dimming controller sends a dimming signal to the signal conversion box, the signal conversion box firstly decodes the dimming signal to the MCU through the communication module, the MCU receives a white light turning-on signal, the relay is controlled to be in a closed state all the time, and at the moment, the LED driver detects that the input voltage does not detect the power failure condition within 10 seconds of power-on and controls the rear-stage white light to be turned on. If the MCU receives a red light turning-on signal, the relay is controlled to be firstly closed and then opened for 1s in the middle within 10 s of power-on, and at the moment, the LED driver detects a power-off signal and controls the red light on the rear stage.
The embodiment of the application provides computer equipment, which comprises a processor and a memory connected with the processor;
the memory is used for storing computer program, and the computer program is used for executing
Acquiring a dimming signal;
judging a power failure condition within a preset time according to the dimming signal, and sending a power failure signal to the LED driving chip;
controlling the color of LED light according to the power-down signal or the power-off-failure signal;
the processor is used to call and execute the computer program in the memory.
In summary, the present invention provides a dimming control system and a working method thereof, wherein the system includes a dimming controller, a signal conversion box, a contactor, and a plurality of LED driving chips, the dimming controller, the signal conversion box, the contactor, and the plurality of LED driving chips are connected in sequence, and the plurality of LED driving chips are used for driving an LED lamp; the dimming controller is used for sending a dimming signal; the signal conversion box is used for judging the power failure condition in the preset time according to the dimming signal and sending a power failure signal to the LED driving chip; the contactor is used for being connected between the signal conversion box and the LED driving chip; the LED driving chip is used for controlling the color of LED light according to the power-down signal. The invention realizes the control of the LED driver by adding a signal conversion box at the input end and converting the signal of the dimming controller into an input voltage signal through an internal circuit. Compared with a common dimming system, the system not only keeps the communication mode of the existing dimming controller, but also removes a dimming line from the dimming controller to an LED driver.
It is to be understood that the embodiments of the method provided above correspond to the embodiments of the apparatus described above, and the corresponding specific contents may be referred to each other, which is not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A dimming control system, comprising:
the LED lamp comprises a dimming controller, a signal conversion box, a contactor and a plurality of LED driving chips, wherein the dimming controller, the signal conversion box, the contactor and the plurality of LED driving chips are sequentially connected, and the plurality of LED driving chips are used for driving the LED lamp;
the dimming controller is used for sending a dimming signal;
the signal conversion box is used for judging a power failure condition in a preset time according to the dimming signal and sending a power failure signal to the LED driving chip;
the contactor is connected between the signal conversion box and the LED driving chip;
and the LED driving chip is used for controlling the color of LED light according to the power-down signal.
2. The system of claim 1, wherein the signal conversion box comprises:
the communication module, the singlechip and the relay;
one end of the communication module is connected with the dimming controller, the other end of the communication module is connected with one end of the single chip microcomputer, the other end of the single chip microcomputer is connected with the relay, and the relay is connected with the contactor.
3. The system of claim 2, wherein the communication module employs:
and an RS485 module.
4. The system of claim 1, further comprising:
and the power supply module is used for supplying electric energy to the dimming control system.
5. An operating method of a dimming control system, comprising:
acquiring a dimming signal;
judging a power failure condition within a preset time according to the dimming signal, and sending a power failure signal to the LED driving chip;
and controlling the color of the LED light according to the power-down signal or the power-off-failure signal.
6. The method of claim 5, wherein obtaining the dimming signal comprises:
presetting two dimming colors; the dimming color comprises: red light and white light;
and acquiring a red light dimming signal or a white light dimming signal.
7. The method of claim 6, wherein the controlling the on/off of the relay for a preset time according to the dimming signal comprises:
receiving the dimming signal through the communication module, decoding and sending the dimming signal to the single chip microcomputer;
and the singlechip controls the on-off state of the relay according to the dimming signal and sends a power failure signal to the LED driving chip.
8. The method of claim 7, wherein the singlechip controls the on/off state of the relay according to the dimming signal, and comprises:
when the dimming signal is a white light dimming signal, the single chip microcomputer controls the relay to be closed within a preset time;
when the dimming signal is a red dimming signal, the single chip microcomputer controls the relay to be disconnected for 1 second and then to be closed within the preset time.
9. The method of claim 8, wherein the controlling the color of the LED light according to the power-down signal or the power-off-free signal comprises:
if the signal is a power-down signal, the white LED lamp is turned on;
and if the power failure signal is not the power failure signal, the red LED lamp is lightened.
10. The method of claim 5,
the preset time is 10 seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011427441.1A CN112637993A (en) | 2020-12-09 | 2020-12-09 | Dimming control system and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011427441.1A CN112637993A (en) | 2020-12-09 | 2020-12-09 | Dimming control system and working method thereof |
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Application publication date: 20210409 |
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