WO2020061927A1 - 一种防闪灯保护系统及方法 - Google Patents

一种防闪灯保护系统及方法 Download PDF

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Publication number
WO2020061927A1
WO2020061927A1 PCT/CN2018/108026 CN2018108026W WO2020061927A1 WO 2020061927 A1 WO2020061927 A1 WO 2020061927A1 CN 2018108026 W CN2018108026 W CN 2018108026W WO 2020061927 A1 WO2020061927 A1 WO 2020061927A1
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Prior art keywords
light source
signal
led
detector
output
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PCT/CN2018/108026
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English (en)
French (fr)
Inventor
卢福星
刘荣土
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厦门普为光电科技有限公司
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Priority to PCT/CN2018/108026 priority Critical patent/WO2020061927A1/zh
Publication of WO2020061927A1 publication Critical patent/WO2020061927A1/zh

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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
    • H05B44/00—Circuit arrangements for operating electroluminescent light sources
    • 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]

Definitions

  • the invention relates to the technical field of LED lamps, in particular to an anti-flash lamp protection system and method.
  • Existing lighting products whether they are light sources or lamps, have a specific life cycle. Generally, the lighting products can work stably during the life cycle, but some lighting products will fail prematurely or work abnormally, causing unstable light output or flashing lights. When the lighting products appear at the end of the life cycle The light output is unstable and the probability of flashing will be higher. When the light output is unstable and the flashing light will cause discomfort to people who work in the lighting area, it will cause eye damage, and even serious economic loss of property.
  • an anti-flash protection system which includes a flicker detector, a signal acquirer, and a power source of the detector;
  • the signal acquirer is connected to a flicker detector, and the signal acquirer is configured to acquire a signal of an LED light source and send the signal to the flicker detector;
  • the flicker detector is connected to a DC-DC switching power supply circuit of an LED driver.
  • the flicker detector is used for receiving a signal sent by a signal acquirer, and comparing the received signal with preset data to determine whether the light output from the LED light source is output. Stable, if it is determined that the light output from the LED light source is unstable, send a control signal to the DC-DC switching power supply circuit of the LED driver to control the LED drive to disconnect the power supplied to the LED light source;
  • the detector power source is connected to the flicker detector, and the detector power source is used to provide the working power of the flicker detector.
  • the signal acquirer is a current sensor, which is used to collect the current signal output from the LED driver to the LED light source, and to determine whether the light output from the LED light source is stable according to the comparison of the collected current signal with preset data, If it is determined that the light output from the LED light source is unstable, the control switch is controlled to disconnect the input power of the LED driver.
  • the signal acquirer is a light detector, which is used to collect the light output signal of the LED light source, and sends the collected light output signal to the flicker detector, which is used to send the received
  • the light output signal is compared with the preset data to determine whether the light output from the ED light source is stable. If it is determined that the light output from the LED light source is unstable, the control switch is controlled to disconnect the input power of the LED driver.
  • the LED driver includes a rectifying and filtering circuit, and a power input terminal of the power source of the detector is connected to the rectifying and filtering circuit.
  • Further optimization includes a power collector, which is used to collect the input power of the LED driver, and sends the collected power to a flicker detector, which is used to take the input power of the rectified filter circuit as an input.
  • the parameters are compared with the collected signal changes and preset data to determine whether the light output from the LED light source is stable. If it is determined that the light output from the LED light source is unstable, the control switch is controlled to disconnect the input power of the LED driver.
  • a flash protection method including the following steps:
  • the LED is controlled to drive to cut off the power supplied to the LED light source.
  • the "obtaining the signal output from the LED driver to the LED light source” is:
  • the "obtaining the signal output from the LED driver to the LED light source” is:
  • the light output signal of the LED light source is collected by a light detector.
  • the scintillation detector is provided with working power through a detector power source, and the signal acquirer collects the signal output from the LED driver to the LED light source and sends it to the scintillation detector.
  • the built-in data is compared to determine whether the light output from the LED light source is stable. If it is determined that the light output from the LED light source is unstable, control the control switch to disconnect the input power of the LED driver.
  • the lighting product is working, light appears When the output is unstable or flashing, you can stop the lighting product output light source in time to avoid unstable light output or flashing conditions that make people feel uncomfortable, and prevent injuries to personnel and economic loss.
  • FIG. 1 is a schematic structural diagram of an anti-flash protection system according to a specific embodiment
  • FIG. 2 is another schematic structural diagram of an anti-flash light protection system according to a specific embodiment
  • FIG. 3 is another schematic structural diagram of an anti-flash protection system according to a specific embodiment
  • FIG. 4 is another schematic structural diagram of an anti-flash protection system according to a specific embodiment
  • FIG. 5 is a schematic flowchart of a flash protection method according to a specific embodiment.
  • the anti-flash protection system includes a flicker detector 111, a signal acquirer, and a detector power source 112;
  • the signal acquirer is connected to a flicker detector, and the signal acquirer is configured to acquire a signal of an LED light source and send the signal to the flicker detector;
  • the flicker detector 111 is connected to the DC-DC switching power supply circuit 122 of the LED driver 120.
  • the flicker detector 111 is configured to obtain a signal output from the LED driver 120 to the LED light source 130, and compare the collected signal with a preset data. For determining whether the light output from the LED light source 130 is stable, if it is determined that the light output from the LED light source 130 is unstable, a control signal is sent to the DC-DC switching power supply circuit 122 of the LED driver 120, and the LED driver 120 is controlled to be switched off to the LED Power source of light source;
  • the detector power source 112 is connected to the flicker detector 111, and the detector power source 112 is used to provide the working power of the flicker detector 111.
  • the detector power source 112 provides working power to the flicker detector 111.
  • the signal acquirer collects the signals output by the LED driver 120 to the LED light source 130, and sends the collected signals to the flicker detector.
  • the flicker detector is based on the received signals and The built-in data is compared to determine whether the light output from the LED light source 130 is stable. If it is determined that the light output from the LED light source 130 is unstable, the DC-DC switching power supply circuit 122 of the LED driver 120 is controlled to disconnect the input of the LED driver 120. And when it is determined that the light output from the LED light source 130 is stable, the flicker detector 111 does not control the DC-DC switching power supply circuit 122 of the LED driver 120 to disconnect the input power of the LED driver 120.
  • the working power source of the lighting product is AC power
  • the LED driver 120 includes a rectification filter circuit 121.
  • DC power may also be used as the working power source.
  • the detector power source 112 may be connected to the AC power and then rectified and stabilized, and then provide the working power to the flicker detector 111.
  • the detector power source 112 may also obtain the rectified and filtered power source from the rectifier and filter circuit 121 of the LED driver 120, and then provide the working power to the flicker detector 111 after processing such as voltage stabilization.
  • the detector power source 112 may also obtain the operating power source of the flicker detector 111 from DC power.
  • the output current is unstable and the output of the LED light source 130 is unstable.
  • the signal acquirer is a current sensor 113, and the current sensor 113 is connected to the LED.
  • the LED light source 130 of the driver 120, the current sensor 113 is used to collect the current signal output by the LED driver 120 to the LED light source 130, and send the collected current signal to the flicker detector, and the flicker detector is based on the received current signal and the The data comparison is performed to determine whether the light output from the LED light source 130 is stable. If it is determined that the light output from the LED light source 130 is unstable, the DC-DC switching power supply circuit 122 of the LED driver 120 is controlled to disconnect the input power of the LED driver 120.
  • the flicker detector 111 collects the change rate of the current signal output from the LED driver 120 to the LED light source 130 and compares it with preset data to determine whether the output of the LED light source 130 is stable. During the comparison process of the change rate of the current signal, If the change rate of the current signal is abnormal, the output of the LED light source 130 can be judged to be unstable.
  • the DC-DC switching power supply circuit 122 of the LED driver 120 needs to be disconnected from the power input value of the LED driver 120 to stop the operation of the LED light source 130 to avoid The LED light source 130 flickers. Further, when the flicker detector 111 compares the change rate of the current signal with the preset data and determines that the LED driver 120 is abnormal, it can use a display or a speaker to remind.
  • the output of the LED light source 130 may be unstable due to a failure of the LED light source 130 of the lighting product.
  • the signal acquirer is a light detector 114 connected to a flicker. Detector 111, the light detector 114 is used to collect the light output signal of the LED light source 130, and sends the collected light output signal to the flicker detector 111, the flicker detector 111 is used to send the received light output signal Compare with the preset data to determine whether the light output from the ED light source is stable. If it is determined that the light output from the LED light source 130 is unstable, control the DC-DC switching power supply circuit 122 of the LED driver 120 to disconnect the input power of the LED driver 120.
  • the LED driver 120 fails or the LED light source 130 fails, it will affect the stability of the output of the LED light source 130. You can directly check whether the output of the LED light source 130 is stable through the photodetector 114.
  • the photodetector 114 may be a photoresistor. , Photodiodes, etc., the light signal output from the LED light source 130 can be converted into an electrical signal by the light detector 114 and sent to the flicker detector 111.
  • the flicker detector 111 compares the preset signal with the electrical signal sent by the light detector 115 To determine whether the output of the LED light source 130 is stable. When it is determined that the output of the LED light source 130 is unstable, the DC-DC switching power supply circuit 122 of the LED driver 120 disconnects the power input value of the LED driver 120 and stops the operation of the LED light source 130 to avoid The LED light source 130 flickers.
  • the flicker detector 111 may also sample the working stability of the LED driver 120 to determine whether the output of the LED light source 130 is stable, such as the working state of the power switch tube in the LED driver 120.
  • a power collector 115 is further included.
  • the power collector 115 is used to collect the input power of the LED driver 120, and The power is sent to a flicker detector 111, which is configured to compare the collected signal change and preset data with the collected input power of the rectification filter circuit 121 as an input parameter to determine the light output from the LED light source 130 Whether it is stable, and if it is determined that the light output from the LED light source 130 is unstable, the DC-DC switching power supply circuit 122 of the LED driver 120 is controlled to turn off the input power of the LED driver 120.
  • the power collector 115 includes a current sensor and a voltage sensor, and the current and voltage signals of the rectification and filtering circuit are respectively collected through the current sensor and the voltage sensor to calculate the input power of the LED driver; the flicker detector 111 collects the LED driver 120 The input power of the input power after rectification and filtering is used as an input parameter.
  • the flicker detector 111 collects the signal change sent by the LED driver 120 to the LED light source 130, the flicker detector 111 compares the signal change with the preset data according to the input parameters. To determine whether the output of the LED light source 130 is stable.
  • the DC-DC switching power supply circuit 122 of the LED driver 120 turns off the power input value of the LED driver 120 and stops the operation of the LED light source 130. Avoid flickering of the LED light source 130.
  • a flash protection method is applied to the flash protection system, and includes the following steps:
  • Step S510 Obtain a signal output from the LED driver to the LED light source
  • Step S520 comparing the collected signal changes with preset data to determine whether the light output from the LED light source is stable
  • Step S530 If it is determined that the light output from the LED light source is unstable, the LED is controlled to drive to turn off the power supplied to the LED light source.
  • the output current is unstable, which causes the output of the LED light source to be unstable.
  • the “obtaining the signal output from the LED driver to the LED light source” is: collecting the current signal output from the LED driver to the LED light source, and comparing whether the collected current signal ’s change rate is compared with preset data to determine whether the light output from the LED light source is stable. If it is determined that the light output from the LED light source is unstable, the DC-DC switching power supply circuit controlling the LED driver disconnects the input power of the LED driver.
  • the flicker detector can collect the current signal output from the LED driver to the LED light source through the current sensor, and compare it with the preset data to determine whether the output of the LED light source is stable.
  • the flicker detector compares the change rate of the current signal with the preset data to determine that the LED driver is abnormal, it can use a display or a speaker to remind.
  • the output of the LED light source may be unstable due to the failure of the LED light source of the lighting product.
  • the "obtaining the signal output from the LED driver to the LED light source” is: collecting the light output signal of the LED light source through a light detector.
  • the light output signal of the LED light source is collected through a light detector and sent to a flicker detector, which compares the received light output signal with preset data to determine whether the light output from the ED light source is stable. If the light output from the light source is unstable, the control switch is turned off to cut off the input power of the LED driver. Whether it is due to the failure of the LED driver or the failure of the LED light source, it will affect the stability of the output of the LED light source.
  • the light detector can be a photoresistor, a photodiode, etc.
  • the light signal output from the LED light source is converted into an electrical signal by a light detector and sent to a flicker detector.
  • the flicker detector compares the electrical signal sent by the light detector with preset data to determine whether the output of the LED light source is stable.
  • the DC-DC switching power supply circuit of the LED driver is used to disconnect the power input value of the LED driver, and the LED light source is stopped to prevent the LED light source from flickering.
  • the flicker detector may also sample the working stability of the LED driver to determine whether the output of the LED light source is stable, such as the working state of the power switch tube in the LED driver.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

一种防闪灯保护系统及方法，该系统包括闪烁检测器（111）、信号获取器及检测器电源（112）；该信号获取器连接于闪烁检测器（111），该信号获取器用于获取LED光源（130）的信号，并将该信号发送至闪烁检测器（111）；该闪烁检测器（111）连接控制开关，该闪烁检测器（111）用接收信号获取器发送的信号，并将接收到的信号与预设数据比对判断LED光源（130）输出的光输出是否稳定，若判断LED光源（130）输出的光输出不稳定，则发送控制信号给LED驱动器（120）的DC-DC开关电源电路（122），控制LED驱动断开输送至LED光源（130）的电源；该检测器电源（112）连接于闪烁检测器（111），该检测器电源（112）用于提供闪烁检测器（111）的工作电能。避免不稳定的光输出或者闪灯的情况使人感到不适，及防止对人员造成伤害。

Description

一种防闪灯保护系统及方法 技术领域
本发明涉及LED灯技术领域，特别涉及一种防闪灯保护系统及方法。
背景技术
现有的照明产品，不管是光源或者灯具等，都是有特定的寿命周期。一般在寿命周期内，照明产品都能够稳定的工作，但还是会有部分的照明产品会出现提早失效或者工作异常，造成光输出不稳定或是出现闪灯，而当照明产品在寿命周期末期出现光输出不稳定及闪灯的概率会更高。出现光输出不稳定及闪灯时会在照明区域作业的人造成不适感，并对人眼睛产生伤害，严重时甚至产生财产经济的损失。
发明内容
为此，需要提供一种防闪灯保护系统及方法，解决现有照明设备出现光输出不稳定或者闪灯时对人造成不适感及对人眼造成伤害等问题。
为实现上述目的，发明人提供了一种防闪灯保护系统，包括闪烁检测器、信号获取器及检测器电源；
所述信号获取器连接于闪烁检测器，所述信号获取器用于获取LED光源的信号，并将该信号发送至闪烁检测器；
所述闪烁检测器连接LED驱动器的DC-DC开关电源电路，所述闪烁检测器用于接收信号获取器发送的信号，并将接收到的信号与预设数据比对判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则发送控制信号给LED驱动器的DC-DC开关电源电路，控制LED驱动断开输送至LED光源的电源；
所述检测器电源连接于闪烁检测器，所述检测器电源用于提供闪烁检测 器的工作电能。
进一步优化，所述信号获取器为电流传感器，所述电流传感器用于采集LED驱动器输出至LED光源的电流信号，根据采集的电流信号与预设数据比对判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制控制开关断开LED驱动器的输入电源。
进一步优化，所述信号获取器为光探测器，所述光探测器用于采集LED光源的光输出信号，并将采集的光输出信号发送至闪烁检测器，所述闪烁检测器用于将接收到的光输出信号与预设数据比对判断ED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制控制开关断开LED驱动器的输入电源。
进一步优化，所述LED驱动器包括整流滤波电路，所述检测器电源的电源输入端连接于整流滤波电路。
进一步优化，还包括功率采集器，所述功率采集器用于采集LED驱动器的输入功率，并将采集的功率发送至闪烁检测器，所述闪烁检测器用于以采集的整流滤波电路的输入功率为输入参数进行比对采集到的信号变化与预设数据，判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制控制开关断开LED驱动器的输入电源。
发明人还提供了另一个技术方案：一种防闪灯保护方法，包括以下步骤：
获取LED驱动器输出至LED光源的信号；
将采集到的信号变化与预设数据比对判断LED光源输出的光输出是否稳定；
若判断LED光源输出的光输出不稳定，则控制LED驱动断开输送至LED光源的电源。
进一步优化，所述“获取LED驱动器输出至LED光源的信号”为：
采集LED驱动器输出至LED光源的电流信号。
进一步优化，所述“获取LED驱动器输出至LED光源的信号”为：
通过光探测器采集LED光源的光输出信号。
区别于现有技术，上述技术方案，通过检测器电源给闪烁检测器提供工作电能，信号获取器采集LED驱动器输出至LED光源的信号，并发送给闪烁检测器，闪烁检测器根据采集的信号与内设的数据进行比对判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制控制开关断开LED驱动器的输入电源；当照明产品在工作过程中，出现光输出不稳定或者闪灯的情况时，可以及时停止照明产品输出光源，避免不稳定的光输出或者闪灯的情况使人感到不适，及防止对人员造成伤害，避免经济损失。
附图说明
图1为具体实施方式所述防闪灯保护系统的一种结构示意图；
图2为具体实施方式所述防闪灯保护系统的另一种结构示意图；
图3为具体实施方式所述防闪灯保护系统的另一种结构示意图；
图4为具体实施方式所述防闪灯保护系统的另一种结构示意图；
图5为具体实施方式所述防闪灯保护方法的一种流程示意图。
附图标记说明：
111、闪烁检测器，
112、检测器电源，
113、电流传感器，
114、光探测器，
115、功率采集器，
120、LED驱动器，
121、整流滤波电路，
122、DC-DC升压/降压恒流电路，
130、LED光源。
具体实施方式
为详细说明技术方案的技术内容、构造特征、所实现目的及效果，以下结合具体实施例并配合附图详予说明。
请参阅图1，本实施例所述防闪灯保护系统，包括闪烁检测器111、信号获取器及检测器电源112；
所述信号获取器连接于闪烁检测器，所述信号获取器用于获取LED光源的信号，并将该信号发送至闪烁检测器；
所述闪烁检测器111连接LED驱动器120的DC-DC开关电源电路122，所述闪烁检测器111用于获取LED驱动器120输出至LED光源130的信号，并将采集到的信号与预设数据比对判断LED光源130输出的光输出是否稳定，若判断LED光源130输出的光输出不稳定，则发送控制信号给LED驱动器120的DC-DC开关电源电路122，控制LED驱动器120断开输送至LED光源的电源；
所述检测器电源112连接于闪烁检测器111，所述检测器电源112用于提供闪烁检测器111的工作电能。
通过检测器电源112给闪烁检测器111提供工作电能，信号获取器采集LED驱动器120输出至LED光源130的信号，并将采集到的信号发送至闪烁检测器，闪烁检测器根据接收到的信号与内设的数据进行比对判断LED光源130输出的光输出是否稳定，若判断LED光源130输出的光输出不稳定，则控制LED驱动器120的DC-DC开关电源电路122断开LED驱动器120的输入电源；而当判断LED光源130输出的光输出稳定，则闪烁检测器111不控制LED驱动器120的DC-DC开关电源电路122断开LED驱动器120的输入电源。当照明产品在工作过程中，出现光输出不稳定或者闪灯的情况时，可以及时停止照明产品输出光源，避免不稳定的光输出或者闪灯的情况使人感到不适，及防止对人员造成伤害，避免经济损失。
在本实施例中，照明产品的工作电源为交流电，LED驱动器120包括整流 滤波电路121，也可以采用直流电作为工作电源。检测器电源112可以通过连接于交流电通过整流稳压处理之后，再给闪烁检测器111提供工作电源。
请参阅图2，在其他实施例中，检测器电源112也可以通过LED驱动器120的整流滤波电路121中获取经过整流滤波的电源后，经过稳压等处理后给闪烁检测器111提供工作电源。检测器电源112也可以从直流电中获取闪烁检测器111的工作电源。
在本实施例中，由于照明产品中的LED驱动器120出现故障，使得输出的电流不稳定，导致LED光源130输出不稳定，所述信号获取器为电流传感器113，所述电流传感器113连接于LED驱动器120的LED光源130，所述电流传感器113用于采集LED驱动器120输出至LED光源130的电流信号，并将采集的电流信号发送给闪烁检测器，闪烁检测器根据接收到的电流信号与预设数据比对判断LED光源130输出的光输出是否稳定，若判断LED光源130输出的光输出不稳定，则控制LED驱动器120的DC-DC开关电源电路122断开LED驱动器120的输入电源。闪烁检测器111通过采集LED驱动器120输出至LED光源130的电流信号的变化率，进行与预设数据进行比对，判断LED光源130输出是否稳定，而当电流信号的变化率比对过程中，发现电流信号的变化率出现异常，则可以判断LED光源130的输出不稳定，则需要通过LED驱动器120的DC-DC开关电源电路122断开电源输入值LED驱动器120，停止LED光源130工作，避免LED光源130出现闪烁。进一步，闪烁检测器111根据电流信号的变化率比对与预设数据进行比对判断LED驱动器120出现异常时，可以通过显示器或者扬声器等进行提醒。
请参阅图3，在其他实施例中，可能是照明产品的LED光源130出现故障而导致LED光源130输出不稳定，所述信号获取器为光探测器114，所述光探测器114连接于闪烁检测器111，所述光探测器114用于采集LED光源130的光输出信号，并将采集的光输出信号发送至闪烁检测器111，所述闪烁检测器111用于将接收到的光输出信号与预设数据比对判断ED光源输出的光输出是 否稳定，若判断LED光源130输出的光输出不稳定，则控制LED驱动器120的DC-DC开关电源电路122断开LED驱动器120的输入电源。不管是由于LED驱动器120出现故障还是LED光源130出现故障，都会影响LED光源130输出的稳定性，可以直接通过光探测器114进行检测LED光源130输出是否稳定，其中光探测器114可以为光敏电阻、光敏二极管等，可以通过光探测器114将LED光源130输出的光信号转换为电信号发送给闪烁检测器111，闪烁检测器111根据光探测器115发送的电信号与预设数据进行比对，判断LED光源130的输出是否稳定，当判断LED光源130的输出不稳定时，则通过LED驱动器120的DC-DC开关电源电路122断开电源输入值LED驱动器120，停止LED光源130工作，避免LED光源130出现闪烁。
在其他实施例中，闪烁检测器111也可以对LED驱动器120的工作稳定性进行采样判断LED光源130的输出是否稳定，如LED驱动器120中的功率开关管的工作状态。
请参阅图4，在本实施例中，为了能够准确检测LED光源130的输出是否稳定，还包括功率采集器115，所述功率采集器115用于采集LED驱动器120的输入功率，并将采集的功率发送至闪烁检测器111，所述闪烁检测器111用于以采集的整流滤波电路121的输入功率为输入参数进行比对采集到的信号变化与预设数据，判断LED光源130输出的光输出是否稳定，若判断LED光源130输出的光输出不稳定，则控制LED驱动器120的DC-DC开关电源电路122断开LED驱动器120的输入电源。其中，功率采集器115包括电流传感器及电压传感器，通过电流传感器及电压传感器分别采集整流滤波电路的电流信号和电压信号后，计算得到LED驱动器的输入功率；闪烁检测器111通过采集LED驱动器120中经过整流滤波后的输入电源的输入功率作为输入参数，当闪烁检测器111采集LED驱动器120输送至LED光源130的信号变化，闪烁检测器111根据输入参数，进行信号变化与预设数据进行比对，进行判断LED光源130的输出是否稳定，当判断LED光源130的输出不稳定时，则通过 LED驱动器120的DC-DC开关电源电路122断开电源输入值LED驱动器120，停止LED光源130工作，避免LED光源130出现闪烁。
请参阅图5，在另一个实施例中，一种防闪灯保护方法，该方法运用于上述防闪灯保护系统，包括以下步骤：
步骤S510：获取LED驱动器输出至LED光源的信号；
步骤S520：将采集到的信号变化与预设数据比对判断LED光源输出的光输出是否稳定；
步骤S530：若判断LED光源输出的光输出不稳定，则控制LED驱动断开输送至LED光源的电源。
通过闪烁检测器采集LED驱动器输出至LED光源的信号，根据采集的信号与内设的数据进行比对判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制LED驱动器的DC-DC开关电源电路断开LED驱动器的输入电源；而当判断LED光源输出的光输出稳定，则闪烁检测器不控制LED驱动器的DC-DC开关电源电路断开LED驱动器的输入电源。当照明产品在工作过程中，出现光输出不稳定或者闪灯的情况时，可以及时停止照明产品输出光源，避免不稳定的光输出或者闪灯的情况使人感到不适，及防止对人员造成伤害，避免经济损失。
在本实施例中，由于照明产品中的LED驱动器出现故障，使得输出的电流不稳定，导致LED光源输出不稳定。所述“获取LED驱动器输出至LED光源的信号”为：采集LED驱动器输出至LED光源的电流信号，根据采集的电流信号的变化率与预设数据比对判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制LED驱动器的DC-DC开关电源电路断开LED驱动器的输入电源。闪烁检测器可以通过电流传感器通过采集LED驱动器输出至LED光源的电流信号，进行与预设数据进行比对，判断LED光源输出是否稳定，而当电流信号的变化率比对过程中，发现电流信号的变化率出现异常，则可以判断LED光源的输出不稳定，则需要通过LED驱动器的 DC-DC开关电源电路断开电源输入值LED驱动器，停止LED光源工作，避免LED光源出现闪烁。进一步，闪烁检测器根据电流信号的变化率比对与预设数据进行比对判断LED驱动器出现异常时，可以通过显示器或者扬声器等进行提醒。
在其他实施例中，可能是照明产品的LED光源出现故障而导致LED光源输出不稳定，所述“获取LED驱动器输出至LED光源的信号”为：通过光探测器采集LED光源的光输出信号。通过光探测器采集LED光源的光输出信号，并发送至闪烁检测器，所述闪烁检测器将接收到的光输出信号与预设数据比对判断ED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制控制开关断开LED驱动器的输入电源。不管是由于LED驱动器出现故障还是LED光源出现故障，都会影响LED光源输出的稳定性，可以直接通过光探测器进行检测LED光源输出是否稳定，其中光探测器可以为光敏电阻、光敏二极管等，可以通过光探测器将LED光源输出的光信号转换为电信号发送给闪烁检测器，闪烁检测器根据光探测器发送的电信号与预设数据进行比对，判断LED光源的输出是否稳定，当判断LED光源的输出不稳定时，则通过LED驱动器的DC-DC开关电源电路断开电源输入值LED驱动器，停止LED光源工作，避免LED光源出现闪烁。
在其他实施例中，闪烁检测器也可以对LED驱动器的工作稳定性进行采样判断LED光源的输出是否稳定，如LED驱动器中的功率开关管的工作状态。
需要说明的是，尽管在本文中已经对上述各实施例进行了描述，但并非因此限制本发明的专利保护范围。因此，基于本发明的创新理念，对本文所述实施例进行的变更和修改，或利用本发明说明书及附图内容所作的等效结构或等效流程变换，直接或间接地将以上技术方案运用在其他相关的技术领域，均包括在本发明的专利保护范围之内。

Claims (8)

  1. 一种防闪灯保护系统，其特征在于，包括闪烁检测器、信号获取器及检测器电源；
    所述信号获取器连接于闪烁检测器，所述信号获取器用于获取LED光源的信号，并将该信号发送至闪烁检测器；
    所述闪烁检测器连接LED驱动器的DC-DC开关电源电路，所述闪烁检测器用于接收信号获取器发送的信号，并将接收到的信号与预设数据比对判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则发送控制信号给LED驱动器的DC-DC开关电源电路，控制LED驱动断开输送至LED光源的电源；
    所述检测器电源连接于闪烁检测器，所述检测器电源用于提供闪烁检测器的工作电能。
  2. 根据权利要求1所述防闪灯保护系统，其特征在于，所述信号获取器为电流传感器，所述电流传感器用于采集LED驱动器输出至LED光源的电流信号，并将采集的电流信号发送至闪烁检测器，所述闪烁检测器用于根据采集的电流信号与预设数据比对判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制控制开关断开LED驱动器的输入电源。
  3. 根据权利要求1所述防闪灯保护系统，其特征在于，所述信号获取器为光探测器，所述光探测器用于采集LED光源的光输出信号，并将采集的光输出信号发送至闪烁检测器，所述闪烁检测器用于将接收到的光输出信号与预设数据比对判断ED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制控制开关断开LED驱动器的输入电源。
  4. 根据权利要求1所述防闪灯保护系统，其特征在于，所述LED驱动器包括整流滤波电路，所述检测器电源的电源输入端连接于整流滤波电路。
  5. 根据权利要求1所述防闪灯保护系统，其特征在于，还包括功率采集器，所述功率采集器用于采集LED驱动器输入功率，并将采集的功率发送至闪烁检测器，所述闪烁检测器用于以采集的整流滤波电路的输入功率为输入 参数进行比对采集到的信号变化与预设数据，判断LED光源输出的光输出是否稳定，若判断LED光源输出的光输出不稳定，则控制控制开关断开LED驱动器的输入电源。
  6. 一种防闪灯保护方法，其特征在于，包括以下步骤：
    获取LED驱动器输出至LED光源的信号；
    将采集到的信号变化与预设数据比对判断LED光源输出的光输出是否稳定；
    若判断LED光源输出的光输出不稳定，则控制LED驱动断开输送至LED光源的电源。
  7. 根据权利要求6所述防闪灯保护方法，其特征在于，所述“获取LED驱动器输出至LED光源的信号”为：
    采集LED驱动器输出至LED光源的电流信号。
  8. 根据权利要求6所述防闪灯保护方法，其特征在于，所述“获取LED驱动器输出至LED光源的信号”为：
    通过光探测器采集LED光源的光输出信号。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7005646B1 (en) * 2002-07-24 2006-02-28 Canberra Industries, Inc. Stabilized scintillation detector for radiation spectroscopy and method
CN102548159A (zh) * 2010-12-28 2012-07-04 通用电气照明解决方案有限责任公司 用于交通灯的安全闪烁检测器
CN102665366A (zh) * 2012-04-17 2012-09-12 四川新力光源有限公司 Led照明灯具的故障检测系统
CN103517500A (zh) * 2012-06-28 2014-01-15 上海摩晶电子科技有限公司 智能防闪led灯
CN108550270A (zh) * 2018-03-20 2018-09-18 青岛海信网络科技股份有限公司 一种交通信号灯异常状态处理及回传方法及交通信号灯

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7005646B1 (en) * 2002-07-24 2006-02-28 Canberra Industries, Inc. Stabilized scintillation detector for radiation spectroscopy and method
CN102548159A (zh) * 2010-12-28 2012-07-04 通用电气照明解决方案有限责任公司 用于交通灯的安全闪烁检测器
CN102665366A (zh) * 2012-04-17 2012-09-12 四川新力光源有限公司 Led照明灯具的故障检测系统
CN103517500A (zh) * 2012-06-28 2014-01-15 上海摩晶电子科技有限公司 智能防闪led灯
CN108550270A (zh) * 2018-03-20 2018-09-18 青岛海信网络科技股份有限公司 一种交通信号灯异常状态处理及回传方法及交通信号灯

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