CN114269047A - Light emitting diode control method and device and lamp - Google Patents
Light emitting diode control method and device and lamp Download PDFInfo
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- CN114269047A CN114269047A CN202111614919.6A CN202111614919A CN114269047A CN 114269047 A CN114269047 A CN 114269047A CN 202111614919 A CN202111614919 A CN 202111614919A CN 114269047 A CN114269047 A CN 114269047A
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- 238000004891 communication Methods 0.000 claims description 25
- 238000010586 diagram Methods 0.000 description 8
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- 239000011324 bead Substances 0.000 description 1
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- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The invention discloses a light emitting diode control method, a light emitting diode control device and a lamp. The light emitting diode control method comprises the following steps: acquiring a control signal for the light emitting diode; if the control signal indicates that soft shutdown is performed on the power supply of the light emitting diode, disconnecting the electrical connection between the light emitting diode and the power supply before performing the soft shutdown; and if the control signal indicates that the soft start is performed on the power supply of the light emitting diode, the disconnected electrical connection between the light emitting diode and the power supply is connected before the soft start is performed. The technical scheme disclosed by the invention can eliminate the negative pressure at two ends of the light-emitting diode after soft switching.
Description
Technical Field
The invention relates to the technical field of lighting, in particular to a light emitting diode control method, a light emitting diode control device and a lamp.
Background
With the development of the technology, the safety protection of the circuit is more and more concerned, at present, when the light emitting diode works, a high-efficiency power supply is adopted to directly drive the power supply circuit, but at present, the light emitting diode does not have a complete protection circuit, particularly, an over-voltage and under-voltage protection circuit of a light emitting diode light bar and an open-short circuit protection circuit of the light bar, and the protection is not provided, so that the screen light bar can be damaged under certain abnormal states, and the maintenance cost of the screen body is high.
For example, after the remote controller is in soft-off state, the existing decorative lamp with the remote controller has a solution mode of back pressure of the light-emitting diode lamp bead. WIFI, bluetooth lamp control module can be joined in marriage to the ornament lamp a lot of, and after the soft ornament lamp that closes of remote controller, there is the back pressure on the emitting diode lamp pearl, and this kind of back pressure is up to tens of volts, and emitting diode lamp pearl can be damaged to this kind of back pressure.
Disclosure of Invention
The invention aims to provide a light emitting diode control method, a light emitting diode control device and a lamp, and aims to effectively solve the problem that in the prior art, a light emitting diode is easy to generate back pressure after being soft-off.
According to an aspect of the present invention, there is provided a light emitting diode control method including: acquiring a control signal for the light emitting diode; if the control signal indicates that soft shutdown is performed on the power supply of the light emitting diode, disconnecting the electrical connection between the light emitting diode and the power supply before performing the soft shutdown; and if the control signal indicates that the soft start is performed on the power supply of the light emitting diode, the disconnected electrical connection between the light emitting diode and the power supply is connected before the soft start is performed.
Further, the obtaining the control signal for the light emitting diode comprises: the control signal is obtained from a mobile control terminal associated with the light emitting diode via a wireless communication link.
Further, the wireless communication link is a wireless communication link based on a bluetooth protocol or a WLAN protocol.
Further, said disconnecting the electrical connection between the light emitting diode and the power supply before implementing the soft turn-off comprises: and the electric connection between the light emitting diode and the power supply is disconnected by triggering the contact of a relay connected between the light emitting diode and the power supply to be disconnected.
Further said turning on the electrical connection between the light emitting diode and the power supply that has been disconnected before said soft turn-on is performed comprises: and the disconnected electric connection between the light-emitting diode and the power supply is connected in a manner of triggering the contact of a relay connected between the light-emitting diode and the power supply to be closed.
According to another aspect of the present invention, there is provided a light emitting diode control apparatus including: a signal receiving unit for acquiring a control signal for the light emitting diode; a control unit electrically connected with the signal receiving unit, for responding to a trigger signal of the signal receiving unit to disconnect the electrical connection between the light emitting diode and the power supply before implementing the soft shutdown if the control signal indicates to implement the soft shutdown of the power supply of the light emitting diode, and responding to the trigger signal of the signal receiving unit to connect the disconnected electrical connection between the light emitting diode and the power supply before implementing the soft startup if the control signal indicates to implement the soft startup of the power supply of the light emitting diode.
Further, the signal receiving unit acquires the control signal from a mobile control terminal associated with the light emitting diode via a wireless communication link.
Further, the control unit receives a trigger signal from the signal receiving unit via a communication link based on an IIC protocol or a URAT protocol.
Further, the signal receiving unit transmits a trigger signal indicating turn-off to the control unit in a case where the control signal indicates soft turn-off of the power supply to the light emitting diode, and transmits a trigger signal indicating turn-on to the control unit in a case where the control signal indicates soft turn-on of the power supply to the light emitting diode.
Further, the wireless communication link is a wireless communication link based on a bluetooth protocol or a WLAN protocol.
Further, the control unit includes a processor and a relay electrically connected to the processor, wherein the processor controls a contact of the relay to be opened in response to a trigger signal indicating off to open the electrical connection between the light emitting diode and the power source, and the processor controls a contact of the relay to be closed in response to a trigger signal indicating on to close the electrical connection between the light emitting diode and the power source that has been opened.
According to another aspect of the present invention, there is also provided a lamp including the led control device according to any embodiment of the present invention and a light source module, wherein the led control device is electrically connected to the light source module.
The invention has the advantages that before the power supply is turned off or turned on, the relay is controlled to cut off the loop between the light-emitting diode and the power supply load end in advance, so that the negative pressure at two ends of the light-emitting diode after the power supply is turned off is eliminated.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a flowchart illustrating steps of a method for controlling a light emitting diode according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating steps of a method for controlling a light emitting diode according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a light emitting diode control apparatus according to a third embodiment of the present invention.
Fig. 4 is a schematic view of an application scenario of an led control apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a power supply port according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a relay power supply circuit according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a power supply circuit of a processor according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a signal communication port according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a relay according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a processor according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. 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 embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a flowchart illustrating steps of a method for controlling a light emitting diode according to an embodiment of the present invention. The light emitting diode control method comprises the following steps:
step S110: control signals for the light emitting diodes are acquired.
Illustratively, the control signal is generated by a mobile control terminal (e.g., a remote controller), and the control signal may be a signal indicating soft off or a signal indicating soft on.
Step S120: if the control signal indicates that a soft shutdown is performed on the power supply of the light emitting diode, the electrical connection between the light emitting diode and the power supply is disconnected before the soft shutdown is performed.
Step S130: if the control signal indicates that the soft start is carried out on the power supply of the light-emitting diode, before the soft start is carried out, the disconnected electric connection between the light-emitting diode and the power supply is connected
Illustratively, when the control signal is a signal indicating soft turn-off, a loop between the light emitting diode and the power load terminal is cut off. And when the control signal is a signal indicating soft start, a loop between the light-emitting diode and the power load end is switched on.
Since the cutoff operation is performed before the soft-off operation of the power supply is performed, the negative voltage across the light emitting diode after the soft-off can be eliminated.
Fig. 2 is a flowchart illustrating steps of a method for controlling an led according to a second embodiment of the present invention. The light emitting diode control method comprises the following steps:
step S210: the control signal is obtained from a mobile control terminal associated with the light emitting diode via a wireless communication link.
Illustratively, the control signal is generated by the mobile terminal, and the control signal may be a signal indicating soft off or a signal indicating soft on. The wireless communication link is a wireless communication link based on a bluetooth protocol or a WLAN protocol.
Step S220: if the control signal indicates that the power supply of the light-emitting diode is subjected to soft turn-off, the electrical connection between the light-emitting diode and the power supply is disconnected by triggering the disconnection of a contact of a relay connected between the light-emitting diode and the power supply before the soft turn-off is carried out.
Step S230: if the control signal indicates that the soft start is carried out on the power supply of the light-emitting diode, the disconnected electric connection between the light-emitting diode and the power supply is connected in a manner of triggering the contact closure of a relay connected between the light-emitting diode and the power supply before the soft start is carried out.
Illustratively, in the technical solution disclosed in this embodiment, when the control signal is a signal indicating soft turn-off, the loop between the light emitting diode and the power load terminal is cut off. And when the control signal is a signal indicating soft start, a loop between the light-emitting diode and a power load end is switched on.
In the embodiment, before the power supply is turned off or turned on, the relay is controlled to cut off the loop between the light-emitting diode and the power supply load end in advance, so that the negative pressure at two ends of the light-emitting diode after the power supply is turned off is eliminated.
Fig. 3 is a schematic structural diagram of an led control apparatus 400 according to a third embodiment of the present invention. The led control apparatus 400 includes: a signal receiving unit 210 and a control unit 300.
Illustratively, the signal receiving unit 210 is configured to obtain a control signal for the light emitting diode. Illustratively, the signal receiving unit 210 is integrated with the power supply 200, and the power supply 200 is used for supplying power to the light emitting diode.
Further, the control unit 300 receives a trigger signal indicating turning off or on sent by the signal receiving unit 210 through an IIC protocol or a URAT protocol, and the signal receiving unit 210 receives the control signal sent by a mobile control terminal (for example, a remote controller) through a WLAN or a bluetooth protocol. The trigger signal is associated with the control signal.
Illustratively, the control unit 300 includes a control processor 301 and a relay 302.
For example, the processor controls the contacts of the relay to be opened in response to a trigger signal indicating off to open the electrical connection between the light emitting diode and the power source, and controls the contacts of the relay to be closed in response to a trigger signal indicating on to close the electrical connection between the light emitting diode and the power source that has been opened.
Referring to fig. 4, the input end of the power supply 200 is connected to the mains input, L represents the live wire of the mains, and N represents the neutral wire of the mains. The signal receiving unit 210 is exemplarily disposed on the live wire connected to the anode of the light emitting diode, but in other embodiments, the signal receiving unit 210 may be disposed on the neutral wire connected to the cathode of the light emitting diode.
Referring to fig. 5 to 10, the power supply 200 supplies power to the control unit 300 through the power supply port in fig. 5. Specifically, the control unit 300 further includes a power supply port, a relay power supply circuit, a processor power supply circuit, and a signal communication port.
The power supply port reduces the voltage of the relay through the relay power supply circuit to convert the voltage into the working voltage of the relay, the specific voltage value can be adjusted according to the actually used working voltage of the relay, and the working voltage of the relay in this embodiment is 12V.
The output voltage of the relay power supply circuit is converted into an operating voltage of the processor 301 by the step-down of the processor power supply circuit, and the operating voltage of the processor 301 is exemplarily 3.3V in this embodiment. The signal communication port of the processor 301 is connected to a signal communication port reserved in the signal receiving unit 210, the signal receiving unit 210 sends a connection signal/disconnection signal to the processor 301 of the control unit 300 after receiving a signal indicating soft on/off of the mobile control terminal (e.g., a remote controller) 100, and the processor 301 controls the opening/closing of the relay contact by sending a high level/low level to the relay through the port in response to the received trigger signal indicating off/trigger signal indicating on.
Specifically, the Rekay1 port of the processor 301 sends high/low and the relay also receives high/low through the Rekay1 port thereon. For example, when the processor 301 receives a trigger signal indicating to turn on, the Rekay1 port of the processor 301 outputs a high level to the relay 302, the transistor Q10 is turned on through the resistor R121 to energize the coil part of the subsequent electrical appliance, and the normally open contact of the relay contact part is closed, thereby completing the closing process of the relay, so that the output voltage of the power supply 200 is connected with the light emitting diode +, the light emitting diode is turned on, and the lamp works normally. After the processor 301 receives the trigger signal indicating the opening, the Relay1 port of the processor 301 outputs a low level to the Relay, at this time, the triode Q10 is disconnected, the coil part of the Relay is powered off, and then the normally open contact of the contact part of the Relay is opened, so that the disconnection process of the Relay is completed, and further the output voltage of the power supply 200 is disconnected from the light emitting diode +. Among them, the diode D1 shown in fig. 9 can prevent the circuit from conducting reversely.
It should be noted that, in this embodiment, it is necessary to prevent the communication signal between the control unit 300 and the signal receiving unit 210 from being interfered, and to transmit the communication signal several times more, and the connection line of the two communication interfaces is far away from the power supply lines of the led + and the led-.
The invention also provides a lamp, which comprises the light-emitting diode control device and the light source module, wherein the light-emitting diode control device is electrically connected with the light source module.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (13)
1. A method for controlling a light emitting diode, comprising:
acquiring a control signal for the light emitting diode;
if the control signal indicates that soft shutdown is performed on the power supply of the light emitting diode, disconnecting the electrical connection between the light emitting diode and the power supply before performing the soft shutdown; and
if the control signal indicates that the soft start is performed on the power supply of the light emitting diode, the disconnected electrical connection between the light emitting diode and the power supply is connected before the soft start is performed.
2. The led control method of claim 1, wherein said obtaining control signals for said leds comprises:
the control signal is obtained from a mobile control terminal associated with the light emitting diode via a wireless communication link.
3. The method of claim 2, wherein the wireless communication link is a wireless communication link based on a bluetooth protocol or a WLAN protocol.
4. The led control method of any one of claims 1-3, wherein said breaking the electrical connection between the led and the power supply before said performing the soft-off comprises:
and the electric connection between the light emitting diode and the power supply is disconnected by triggering the contact of a relay connected between the light emitting diode and the power supply to be disconnected.
5. The led control method according to any one of claims 1 to 3, wherein said turning on the electrical connection between the led and the power supply that has been disconnected before the soft-start is performed comprises:
and the disconnected electric connection between the light-emitting diode and the power supply is connected in a manner of triggering the contact of a relay connected between the light-emitting diode and the power supply to be closed.
6. A light emitting diode control apparatus, comprising:
a signal receiving unit for acquiring a control signal for the light emitting diode;
a control unit electrically connected with the signal receiving unit, for responding to a trigger signal of the signal receiving unit to disconnect the electrical connection between the light emitting diode and the power supply before implementing the soft shutdown if the control signal indicates to implement the soft shutdown of the power supply of the light emitting diode, and responding to the trigger signal of the signal receiving unit to connect the disconnected electrical connection between the light emitting diode and the power supply before implementing the soft startup if the control signal indicates to implement the soft startup of the power supply of the light emitting diode.
7. The LED control apparatus of claim 6, wherein the signal receiving unit obtains the control signal from a mobile control terminal associated with the LED via a wireless communication link.
8. The LED control apparatus of claim 6, wherein the control unit receives the trigger signal from the signal receiving unit via a communication link based on IIC protocol or URAT protocol.
9. The light emitting diode control apparatus according to claim 8, wherein the signal receiving unit sends a trigger signal indicating off to the control unit in a case where the control signal indicates soft-off of the power supply to the light emitting diode, and sends a trigger signal indicating on to the control unit in a case where the control signal indicates soft-on of the power supply to the light emitting diode.
10. The LED control apparatus of claim 7, wherein the wireless communication link is a wireless communication link based on a Bluetooth protocol or a WLAN protocol.
11. The light emitting diode control apparatus according to any one of claims 6 to 10, wherein the control unit includes a processor and a relay electrically connected to the processor, wherein the processor controls a contact of the relay to be opened in response to a trigger signal indicating off to open the electrical connection between the light emitting diode and the power supply, and the processor controls a contact of the relay to be closed in response to a trigger signal indicating on to close the electrical connection between the light emitting diode and the power supply, which has been opened.
12. The apparatus of claim 11, wherein the processor controls the contacts of the relay to close by outputting a high level, and controls the contacts of the relay to open by outputting a low level.
13. A luminaire comprising the led control device according to any one of claims 6 to 12 and a light source module, wherein the led control device is electrically connected to the light source module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111614919.6A CN114269047A (en) | 2021-12-27 | 2021-12-27 | Light emitting diode control method and device and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111614919.6A CN114269047A (en) | 2021-12-27 | 2021-12-27 | Light emitting diode control method and device and lamp |
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| CN114269047A true CN114269047A (en) | 2022-04-01 |
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| CN202111614919.6A Pending CN114269047A (en) | 2021-12-27 | 2021-12-27 | Light emitting diode control method and device and lamp |
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| CN210629929U (en) * | 2019-09-20 | 2020-05-26 | 欧普照明股份有限公司 | Control circuit and power supply circuit of lighting lamp |
| CN211656460U (en) * | 2020-01-17 | 2020-10-09 | 深圳市中电熊猫展盛科技有限公司 | LED lighting control circuit and system based on bluetooth communication |
| CN111970781A (en) * | 2020-09-07 | 2020-11-20 | 苏州欧普照明有限公司 | Negative pressure prevention circuit and lamp |
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2021
- 2021-12-27 CN CN202111614919.6A patent/CN114269047A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB8810260D0 (en) * | 1987-07-30 | 1988-06-02 | Lutron Electronics Co | Indicator lamp system |
| CN104078923A (en) * | 2013-03-28 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Overvoltage and undervoltage protection circuit and illumination device |
| CN105813273A (en) * | 2016-05-12 | 2016-07-27 | 重庆四联光电科技有限公司 | Method and device for preventing lamp group from over-voltage and under-voltage working and lighting device |
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