CN109195254A - A kind of anti-flashing light protection system and method - Google Patents
A kind of anti-flashing light protection system and method Download PDFInfo
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- CN109195254A CN109195254A CN201811133412.7A CN201811133412A CN109195254A CN 109195254 A CN109195254 A CN 109195254A CN 201811133412 A CN201811133412 A CN 201811133412A CN 109195254 A CN109195254 A CN 109195254A
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- light source
- signal
- led
- output
- led light
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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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- 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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- Measurement Of Radiation (AREA)
Abstract
The present invention relates to a kind of anti-flashing lights to protect system and method, and the system comprises scintillation detector, signal acquisition device and detector power supplys；The signal acquisition device is connected to scintillation detector, and the signal acquisition device is used to obtain the signal of LED light source, and transmits the signal to scintillation detector；The scintillation detector connects control switch, the signal that the scintillation detector is sent with signal acquisition device is received, and whether the light output for exporting the signal received and preset data contrast judgement LED light source is stable, if judging, the light output of LED light source output is unstable, control signal is then sent to the DC-DC switching power circuit of LED driver, control LED driving disconnects the power supply for being delivered to LED light source；The detector power supply is connected to scintillation detector, and the detector power supply is for providing the work energy of scintillation detector.The case where avoiding unstable light output or flashing light makes one not feeling good, and prevents from damaging personnel.
Description
Technical field
The present invention relates to led light technology field, in particular to a kind of anti-flashing light protects system and method.
Background technique
Existing illuminating product, either light source or lamps and lanterns etc. are all to have specific life cycle.Generally in week in service life
In phase, the work that illuminating product can be stable, but the illuminating product for having part will appear failure ahead of time or work
It is abnormal, it causes light output unstable or flashing light occurs, and when in end of its life cycle light output occur unstable for illuminating product
And the probability of flashing light can be higher.Occur when light output is unstable and flashing light can in the artificial at sense of discomfort of illumination region operation, and
Injury is generated to human eye, the loss of property economy is even generated when serious.
Summary of the invention
For this reason, it may be necessary to provide a kind of anti-flashing light protection system and method, solves existing lighting apparatus and light output shakiness occur
To artificial at sense of discomfort and the problems such as damaged to human eye when fixed or flashing light.
To achieve the above object, a kind of anti-sudden strain of a muscle lamp protection system, including scintillation detector, signal acquisition are inventor provided
Device and detector power supply；
The signal acquisition device is connected to scintillation detector, and the signal acquisition device is used to obtain the signal of LED light source, and
Transmit the signal to scintillation detector；
The DC-DC switching power circuit of the scintillation detector connection LED driver, the scintillation detector is for receiving
The signal that signal acquisition device is sent, and be by the light output that the signal received is exported with preset data contrast judgement LED light source
No stabilization, if judging, the light output of LED light source output is unstable, and the DC-DC for sending control signal to LED driver switchs electricity
Source circuit, control LED driving disconnect the power supply for being delivered to LED light source；
The detector power supply is connected to scintillation detector, and the detector power supply is for providing the work of scintillation detector
Electric energy.
It advanced optimizes, the signal acquisition device is current sensor, and the current sensor is for acquiring LED driver
It exports to the current signal of LED light source, the light exported according to the current signal of acquisition and preset data contrast judgement LED light source is defeated
Whether stable out, if judging, the light output of LED light source output is unstable, controls the input that control switch disconnects LED driver
Power supply.
It advanced optimizes, the signal acquisition device is optical detector, and the light that the optical detector is used to acquire LED light source is defeated
Signal out, and the optical output signal of acquisition is sent to scintillation detector, the light that the scintillation detector is used to receive is defeated
Whether signal and the light output of preset data contrast judgement ED light source output are stable out, if judging the light output of LED light source output
It is unstable, then control the input power that control switch disconnects LED driver.
It advanced optimizes, the LED driver includes current rectifying and wave filtering circuit, and the power input of the detector power supply connects
It is connected to current rectifying and wave filtering circuit.
It advanced optimizes, further includes power harvester, the power harvester is used to acquire the input work of LED driver
Rate, and the power of acquisition is sent to scintillation detector, the scintillation detector is used for the defeated of the current rectifying and wave filtering circuit of acquisition
Enter power and collected signal intensity and preset data is compared for input parameter, judges that the light output of LED light source output is
No stabilization, if judging, the light output of LED light source output is unstable, controls the input power that control switch disconnects LED driver.
Inventor additionally provides another technical solution: a kind of anti-flashing light guard method, comprising the following steps:
LED driver is obtained to export to the signal of LED light source；
Whether the light output that collected signal intensity and preset data contrast judgement LED light source are exported is stable；
If judging, the light output of LED light source output is unstable, controls LED driving and disconnects the power supply for being delivered to LED light source.
It advanced optimizes, it is described " obtaining LED driver to export to the signal of LED light source " are as follows:
Acquisition LED driver is exported to the current signal of LED light source.
It advanced optimizes, it is described " obtaining LED driver to export to the signal of LED light source " are as follows:
The optical output signal of LED light source is acquired by optical detector.
It is different from the prior art, above-mentioned technical proposal, provides work energy, letter to scintillation detector by detector power supply
Number getter acquisition LED driver is exported to the signal of LED light source, and is sent to scintillation detector, and scintillation detector is according to adopting
The signal of collection is compared judge whether the light output of LED light source output is stable with the interior data set, if judging, LED light source is exported
Light output it is unstable, then control control switch disconnect LED driver input power；When illuminating product during the work time,
When there is the case where light output is unstable or flashing light, can the output of products light source of lighting-off in time, avoid unstable light
The case where output or flashing light, makes one not feeling good, and prevents from damaging personnel, avoids economic loss.
Detailed description of the invention
Fig. 1 is the anti-a kind of structural schematic diagram for dodging lamp protection system described in specific embodiment；
Fig. 2 is the anti-another structural schematic diagram for dodging lamp protection system described in specific embodiment；
Fig. 3 is the anti-another structural schematic diagram for dodging lamp protection system described in specific embodiment；
Fig. 4 is the anti-another structural schematic diagram for dodging lamp protection system described in specific embodiment；
Fig. 5 is a kind of flow diagram of anti-flashing light guard method described in specific embodiment.
Description of symbols:
111, scintillation detector,
112, detector power supply,
113, current sensor,
114, optical detector,
115, power harvester,
120, LED driver,
121, current rectifying and wave filtering circuit,
122, DC-DC step-up/down constant-current circuit,
130, LED light source.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
Referring to Fig. 1, anti-sudden strain of a muscle lamp protection system described in the present embodiment, including scintillation detector 111, signal acquisition device and inspection
Survey device power supply 112；
The signal acquisition device is connected to scintillation detector, and the signal acquisition device is used to obtain the signal of LED light source, and
Transmit the signal to scintillation detector；
The scintillation detector 111 connects the DC-DC switching power circuit 122 of LED driver 120, the flicker detection
Device 111 is used to obtain the signal of the output of LED driver 120 to LED light source 130, and by collected signal and preset data ratio
It is whether stable to the light output for judging that LED light source 130 exports, if the light output for judging that LED light source 130 exports is unstable, send out
Send control signal to the DC-DC switching power circuit 122 of LED driver 120, the control disconnection of LED driver 120 is delivered to LED
The power supply of light source；
The detector power supply 112 is connected to scintillation detector 111, and the detector power supply 112 is for providing flashing inspection
Survey the work energy of device 111.
Work energy is provided to scintillation detector 111 by detector power supply 112, signal acquisition device acquires LED driver
120 export to the signal of LED light source 130, and collected signal is sent to scintillation detector, and scintillation detector is according to reception
To signal whether be compared with the interior data set the light output that judges that LED light source 130 exports stable, if judging LED light source
The light output of 130 outputs is unstable, then the DC-DC switching power circuit 122 for controlling LED driver 120 disconnects LED driver
120 input power；And when judging that the light output that LED light source 130 exports is stable, then scintillation detector 111 does not control LED driving
The DC-DC switching power circuit 122 of device 120 disconnects the input power of LED driver 120.When illuminating product during the work time,
When there is the case where light output is unstable or flashing light, can the output of products light source of lighting-off in time, avoid unstable light
The case where output or flashing light, makes one not feeling good, and prevents from damaging personnel, avoids economic loss.
In the present embodiment, the working power of illuminating product is alternating current, and LED driver 120 includes current rectifying and wave filtering circuit
121, it can also be using direct current as working power.Detector power supply 112 can be steady by rectification by being connected to alternating current
Pressure handles and then provides working power to scintillation detector 111.
Referring to Fig. 2, in other embodiments, detector power supply 112 can also be filtered by the rectification of LED driver 120
It is obtained after the power supply of rectifying and wave-filtering in wave circuit 121, provides work electricity to scintillation detector 111 after the processing such as pressure stabilizing
Source.Detector power supply 112 can also obtain the working power of scintillation detector 111 from direct current.
In the present embodiment, since the LED driver 120 in illuminating product breaks down, so that the electric current of output is unstable
It is fixed, cause LED light source 130 to export unstable, the signal acquisition device is current sensor 113, and the current sensor 113 connects
It is connected to the LED light source 130 of LED driver 120, the current sensor 113 is for acquiring the output of LED driver 120 to LED light
The current signal in source 130, and the current signal of acquisition is sent to scintillation detector, scintillation detector is according to the electric current received
Whether signal and the light output that preset data contrast judgement LED light source 130 exports are stable, if judging the light that LED light source 130 exports
Export it is unstable, then control LED driver 120 DC-DC switching power circuit 122 disconnect LED driver 120 input electricity
Source.Scintillation detector 111 by acquisition LED driver 120 output to LED light source 130 current signal change rate, carry out with
Preset data is compared, and judges whether the output of LED light source 130 is stable, and in the change rate comparison process of current signal, hair
There is exception in the change rate of existing current signal, then may determine that the output of LED light source 130 is unstable, then need to drive by LED
The DC-DC switching power circuit 122 of device 120 disconnects power input value LED driver 120, stops LED light source 130 and works, avoids
LED light source 130 flashes.Further, scintillation detector 111 is compared according to the change rate of current signal and is carried out with preset data
When contrast judgement LED driver 120 occurs abnormal, it can be reminded by display or loudspeaker etc..
Referring to Fig. 3, in other embodiments, it may be possible to which the LED light source 130 of illuminating product breaks down and leads to LED
Light source 130 exports unstable, and the signal acquisition device is optical detector 114, and the optical detector 114 is connected to scintillation detector
111, the optical detector 114 is used to acquire the optical output signal of LED light source 130, and the optical output signal of acquisition is sent to
Scintillation detector 111, the optical output signal and preset data contrast judgement ED light that the scintillation detector 111 is used to receive
Whether the light output of source output is stable, if the light output for judging that LED light source 130 exports is unstable, controls LED driver 120
DC-DC switching power circuit 122 disconnect LED driver 120 input power.Either since event occurs in LED driver 120
Barrier or LED light source 130 break down, and can all influence the stability of the output of LED light source 130, can directly pass through optical detector
Whether 114 to carry out the detection output of LED light source 130 stable, wherein optical detector 114 can for photo resistance, photodiode etc.,
The optical signal that LED light source 130 exports can be converted into electric signal by optical detector 114 and be sent to scintillation detector 111, dodged
Bright detector 111 is compared according to the electric signal that optical detector 115 is sent with preset data, judges the output of LED light source 130
It is whether stable, when the output for judging LED light source 130 is unstable, then pass through the DC-DC switching power circuit of LED driver 120
122 disconnect power input value LED driver 120, stop LED light source 130 and work, LED light source 130 is avoided to flash.
In other embodiments, scintillation detector 111 can also sample the job stability of LED driver 120
Judge whether the output of LED light source 130 is stable, such as the working condition of the power switch tube in LED driver 120.
It is whether stable in order to the output that accurately detects LED light source 130 referring to Fig. 4, in the present embodiment, also wrap
Include power harvester 115, the power harvester 115 is used to acquire the input power of LED driver 120, and by the function of acquisition
Rate is sent to scintillation detector 111, and the scintillation detector 111 is used for the input power of the current rectifying and wave filtering circuit 121 of acquisition
Collected signal intensity and preset data is compared for input parameter, whether the light output for judging that LED light source 130 exports is steady
It is fixed, if the light output for judging that LED light source 130 exports is unstable, control the DC-DC switching power circuit of LED driver 120
122 disconnect the input power of LED driver 120.Wherein, power harvester 115 includes current sensor and voltage sensor, is led to
After over-current sensor and voltage sensor acquire the current signal and voltage signal of current rectifying and wave filtering circuit respectively, it is calculated
The input power of LED driver；Scintillation detector 111 passes through the input electricity in acquisition LED driver 120 after rectifying and wave-filtering
The input power in source is as input parameter, when scintillation detector 111 acquires the letter that LED driver 120 is delivered to LED light source 130
Number variation, scintillation detector 111 according to input parameter, carry out signal intensity be compared with preset data, carry out judgement LED light
Whether the output in source 130 is stable, when the output for judging LED light source 130 is unstable, then passes through the DC-DC of LED driver 120
Switching power circuit 122 disconnects power input value LED driver 120, stops LED light source 130 and works, LED light source 130 is avoided to go out
Now flash.
Referring to Fig. 5, in another embodiment, a kind of anti-flashing light guard method, this method applies to above-mentioned anti-flashing light
Protection system, comprising the following steps:
Step S510: it obtains LED driver and exports to the signal of LED light source；
Step S520: whether the light output that collected signal intensity and preset data contrast judgement LED light source are exported
Stablize；
Step S530: if judging, the light output of LED light source output is unstable, controls LED driving disconnection and is delivered to LED light
The power supply in source.
LED driver is acquired by scintillation detector to export to the signal of LED light source, according to the signal of acquisition and interior is set
Data are compared judge whether the light output of LED light source output is stable, if judging, the light output of LED light source output is unstable,
The DC-DC switching power circuit for then controlling LED driver disconnects the input power of LED driver；And works as and judge that LED light source exports
Light output stablize, then scintillation detector do not control LED driver DC-DC switching power circuit disconnect LED driver it is defeated
Enter power supply.When illuminating product during the work time, when there is the case where unstable light output or flashing light, can stop shining in time
Bright output of products light source, the case where avoiding unstable light output or flashing light, make one not feeling good, and prevent from causing personnel
Injury, avoids economic loss.
In the present embodiment, since the LED driver in illuminating product breaks down, so that the electric current of output is unstable,
Cause LED light source output unstable.Described " obtaining LED driver to export to the signal of LED light source " are as follows: acquisition LED driver
It exports to the current signal of LED light source, it is defeated according to the change rate of the current signal of acquisition and preset data contrast judgement LED light source
Whether light output out is stable, if judging, the light output of LED light source output is unstable, controls the DC-DC switch of LED driver
The input power of power circuit disconnection LED driver.Scintillation detector can pass through acquisition LED driver by current sensor
It exporting to the current signal of LED light source, progress is compared with preset data, judge whether LED light source output is stable, and when electricity
In the change rate comparison process for flowing signal, it is found that it is abnormal the change rate of current signal occurs, then may determine that the output of LED light source
It is unstable, then it needs to disconnect power input value LED driver by the DC-DC switching power circuit of LED driver, stops LED
Light source working avoids LED light source from flashing.Further, scintillation detector is compared and is preset according to the change rate of current signal
Data are compared when judging that LED driver occurs abnormal, can be reminded by display or loudspeaker etc..
In other embodiments, it may be possible to which the LED light source of illuminating product breaks down and causes LED light source output unstable
It is fixed, it is described " obtaining LED driver to export to the signal of LED light source " are as follows: to be believed by the light output that optical detector acquires LED light source
Number.The optical output signal of LED light source is acquired by optical detector, and is sent to scintillation detector, and the scintillation detector will connect
Whether the optical output signal received and the light output of preset data contrast judgement ED light source output are stable, if judging, LED light source is defeated
Light output out is unstable, then controls the input power that control switch disconnects LED driver.Either since LED driver goes out
Existing failure or LED light source break down, and can all influence the stability of LED light source output, can directly pass through optical detector into
Whether row detection LED light source output is stable, and wherein optical detector can be photo resistance, photodiode etc., can pass through light
The optical signal that LED light source exports is converted to electric signal and is sent to scintillation detector by detector, and scintillation detector is according to optical detection
The electric signal that device is sent is compared with preset data, judges whether the output of LED light source is stable, when judging the defeated of LED light source
When unstable out, then power input value LED driver is disconnected by the DC-DC switching power circuit of LED driver, stops LED
Light source working avoids LED light source from flashing.
In other embodiments, scintillation detector can also the job stability to LED driver carry out sampling judge LED
Whether the output of light source is stable, such as the working condition of the power switch tube in LED driver.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
Scope of patent protection of the invention.Therefore, it based on innovative idea of the invention, change that embodiment described herein is carried out and is repaired
Change, or using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it directly or indirectly will be with
Upper technical solution is used in other related technical areas, is included within scope of patent protection of the invention.
Claims (8)
1. a kind of anti-sudden strain of a muscle lamp protection system, which is characterized in that including scintillation detector, signal acquisition device and detector power supply；
The signal acquisition device is connected to scintillation detector, and the signal acquisition device is used to obtain the signal of LED light source, and should
Signal is sent to scintillation detector；
The DC-DC switching power circuit of the scintillation detector connection LED driver, the scintillation detector is for receiving signal
The signal that getter is sent, and whether the light output that the signal received and preset data contrast judgement LED light source are exported is steady
Fixed, if judging, the light output of LED light source output is unstable, sends control signal to the DC-DC switch power supply of LED driver
Road, control LED driving disconnect the power supply for being delivered to LED light source；
The detector power supply is connected to scintillation detector, and the detector power supply is used to provide the work electricity of scintillation detector
Energy.
2. anti-sudden strain of a muscle lamp protection system according to claim 1, which is characterized in that the signal acquisition device is current sensor,
The current sensor is exported for acquiring LED driver to the current signal of LED light source, and the current signal of acquisition is sent
To scintillation detector, the scintillation detector is used for defeated according to the current signal and preset data contrast judgement LED light source of acquisition
Whether light output out is stable, if judging, the light output of LED light source output is unstable, controls control switch and disconnects LED driving
The input power of device.
3. anti-sudden strain of a muscle lamp protection system according to claim 1, which is characterized in that the signal acquisition device is optical detector, institute
Optical detector is stated for acquiring the optical output signal of LED light source, and the optical output signal of acquisition is sent to scintillation detector, institute
State scintillation detector for will the optical output signal that receive and preset data contrast judgement ED light source output light output whether
Stablize, if judging, the light output of LED light source output is unstable, controls the input power that control switch disconnects LED driver.
4. anti-sudden strain of a muscle lamp protection system according to claim 1, which is characterized in that the LED driver includes rectifying and wave-filtering electricity
The power input on road, the detector power supply is connected to current rectifying and wave filtering circuit.
5. anti-sudden strain of a muscle lamp protection system according to claim 1, which is characterized in that further include power harvester, the power is adopted
Storage is sent to scintillation detector for acquiring LED driver input power, and by the power of acquisition, and the scintillation detector is used
In with the input power of the current rectifying and wave filtering circuit of acquisition be input parameter collected signal intensity and preset data is compared,
Judge whether the light output of LED light source output is stable, the light output of LED light source output is unstable if judging, controls control and opens
The input power of LED driver is opened in shutdown.
6. a kind of anti-flashing light guard method, which comprises the following steps:
LED driver is obtained to export to the signal of LED light source；
Whether the light output that collected signal intensity and preset data contrast judgement LED light source are exported is stable；
If judging, the light output of LED light source output is unstable, controls LED driving and disconnects the power supply for being delivered to LED light source.
7. anti-flashing light guard method according to claim 6, which is characterized in that described " to obtain LED driver to export to LED
The signal of light source " are as follows:
Acquisition LED driver is exported to the current signal of LED light source.
8. anti-flashing light guard method according to claim 6, which is characterized in that described " to obtain LED driver to export to LED
The signal of light source " are as follows:
The optical output signal of LED light source is acquired by optical detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133412.7A CN109195254A (en) | 2018-09-27 | 2018-09-27 | A kind of anti-flashing light protection system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133412.7A CN109195254A (en) | 2018-09-27 | 2018-09-27 | A kind of anti-flashing light protection system and method |
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| CN109195254A true CN109195254A (en) | 2019-01-11 |
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ID=64907403
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| CN201811133412.7A Pending CN109195254A (en) | 2018-09-27 | 2018-09-27 | A kind of anti-flashing light protection system and method |
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| CN111131811A (en) * | 2019-12-30 | 2020-05-08 | 浙江大华技术股份有限公司 | Device and method for detecting flicker of light supplement lamp, camera equipment and storage medium |
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Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |