CN112040615B - Light control method and circuit for lamp - Google Patents
Light control method and circuit for lamp Download PDFInfo
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- CN112040615B CN112040615B CN202010843561.3A CN202010843561A CN112040615B CN 112040615 B CN112040615 B CN 112040615B CN 202010843561 A CN202010843561 A CN 202010843561A CN 112040615 B CN112040615 B CN 112040615B
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 238000012935 Averaging Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000000087 stabilizing effect Effects 0.000 description 5
- 101100150346 Arabidopsis thaliana RS31 gene Proteins 0.000 description 2
- 102100029055 Exostosin-1 Human genes 0.000 description 1
- 102100029074 Exostosin-2 Human genes 0.000 description 1
- 101000918311 Homo sapiens Exostosin-1 Proteins 0.000 description 1
- 101000918275 Homo sapiens Exostosin-2 Proteins 0.000 description 1
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 description 1
- 101100489717 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND2 gene Proteins 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process 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
- 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
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient 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
- 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
- H05B47/155—Coordinated control of two or more 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
- Y02B20/40—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 light control method and a circuit of a lamp, which solve the problems of flicker of a light source of a common light control lamp and mutual influence between adjacent lamps in the lamp and comprise the following steps: s1: carrying out cycle data acquisition and calculation to obtain an influence factor; s2: obtaining a light-off brightness value according to the influence factor; s3: and setting a light-on brightness value, and controlling the on-off of the lamp according to the light-on brightness value and the light-off brightness value. The invention has the beneficial effects that: the influence degree of the lamp on the environment after the lamp is turned on is introduced, so that the lighting interval is widened, and the possible twinkling phenomenon caused by interval problems is avoided; the circuit is optimally designed, so that the problem of light source flicker caused by circuit problems is avoided; all lamps in the lamp are controlled to be started synchronously, so that mutual influence between the lamps is effectively avoided; the JW1691D execution chip is adopted to accurately control the current output to each lamp, and the stability and uniformity of light emitting of each lamp are guaranteed.
Description
Technical Field
The invention relates to the technical field of lighting equipment, in particular to a light control method and a light control circuit for a lamp.
Background
With the development of science and technology and the increasing living standard of people, lamps, especially light-operated lamps, are also increasingly popularized in daily life of people, the light-operated lamps generally detect the brightness of the environment through photosensitive elements so as to feed back the brightness and control the on and off of the light-operated lamps by combining preset lamp switching thresholds, but a plurality of lamps are arranged in the common lamps, and the detection of the photosensitive elements is simultaneously influenced by the self-lighting of the lamps and the lighting of adjacent lamps. Moreover, the light source may flicker at a certain frequency due to circuit problems.
Disclosure of Invention
The invention provides a light control method and a light control circuit for a lamp, which solve the problems of light source flicker of a common light control lamp and mutual influence between adjacent lamps in the lamp.
In order to solve the technical problems, the technical scheme of the invention is as follows: a light control method of a lamp comprises the following steps:
s1: carrying out cycle data acquisition and calculation to obtain an influence factor;
s2: obtaining a light-off brightness value according to the influence factor;
s3: and setting a light-on brightness value, and controlling the on-off of the lamp according to the light-on brightness value and the light-off brightness value.
As a preferable scheme of the above scheme, the cycle data acquisition and calculation in step S1 includes the following steps:
s21: setting a cycle period and a sampling frequency;
s22: sampling the ambient brightness before and after the lamp is turned on according to the sampling frequency in each cycle period;
s23: and carrying out data processing according to the ambient brightness before and after the lamp is turned on to obtain the influence factors in the cycle period.
As a preferable mode of the above, the data processing in step S23 includes the steps of:
s31: averaging the ambient brightness before and after the lamp is turned on in the cycle period to obtain an average value of the ambient brightness before the lamp is turned on and an average value of the ambient brightness after the lamp is turned on;
s32: and dividing the average value of the ambient brightness after the lamp is turned on by the average value of the ambient brightness before the lamp is turned on to obtain the influence factor in the cycle period.
As a preferable scheme of the above scheme, the obtaining of the light-off brightness value according to the influence factor in step S2 includes the following steps:
s41: averaging the ambient brightness after the lamp is turned on to obtain an average ambient brightness after the lamp is turned on;
s42: multiplying the average value of the ambient brightness after the lamp is turned on by the influence factor to obtain the influence quantity in the cycle period;
s43: and adding the influence quantity to the average value of the environment brightness after the lamp is turned on to obtain the lamp turn-off brightness value in the cycle period.
The influence factor is the influence degree of the lamp on the ambient brightness after the lamp is turned on, and the quantity is introduced and then the processing is carried out, so that the lighting interval of the light-operated lamp is effectively widened, and the range of the lighting interval is larger than the added value of the ambient brightness caused by the lighting of the lamp.
As a preferable solution of the above solution, the controlling of turning on and off the lamp in step S3 includes the following steps:
s51: acquiring the environment brightness in real time to obtain a real-time environment brightness value;
s52: comparing the real-time environment brightness value with the light-off brightness value of the last cycle period, and if the real-time environment brightness value is greater than the light-off brightness value of the last cycle period, turning off the light; if the real-time environment brightness value is smaller than the light-off brightness value of the last cycle period, the light-on state is kept;
s53: comparing the real-time environment brightness value with the set light-on brightness value, and operating to turn on the light if the real-time environment brightness value is smaller than the set light-on brightness value; and if the real-time environment brightness value is greater than the set light-on brightness value, keeping the light-off state.
As a preferable scheme of the above scheme, the turning on in step S53 is to synchronously control the synchronous turning on of all lamps in the lamp at the time of the zero-crossing point of the alternating current. All lamps in the lamp are controlled to be started synchronously, so that mutual influence among the lamps is avoided.
A light control circuit of a lamp comprises a power supply module, a light control module and a control module, wherein the power supply module is used for supplying power; the execution module is used for executing the turning on and turning off of the lamp; and the control module is used for controlling the on and off of the lamp.
As a preferred scheme of the above scheme, the power module includes a rectifier bridge and a polarity capacitor CD211, two input ends of the rectifier bridge are respectively connected to the live line and the zero line, an anode output end of the rectifier bridge is connected to an anode of the polarity capacitor CD211, and a cathode of the polarity capacitor CD211 is connected to a cathode output end of the rectifier bridge and grounded.
As a preferable scheme of the above scheme, the execution module includes an execution chip, an MOS transistor, and a plurality of light emitting diodes connected in series, a first output end of the execution chip is connected to an anode of the diode, a second output end of the execution chip is connected to a source of the MOS transistor, and a drain of the MOS transistor is connected to a cathode of the light emitting diode. The execution chip adopts a chip with the model number of JW1691D, can accurately control the current output to the light-emitting diodes, and ensures the stability and uniformity of light emission of each light-emitting diode.
As a preferable scheme of the above scheme, the control module includes a control chip and a photosensitive sensor, a signal input end of the control chip is connected to a signal output end of the photosensitive sensor, and a signal output end of the control chip is connected to a gate of the MOS transistor. The control chip adopts a chip with the model number of SDS 7322H.
Compared with the prior art, the invention has the beneficial effects that:
1. the influence degree of the lamp on the environment after the lamp is turned on is introduced, so that the lighting interval is widened, and the possible twinkling phenomenon caused by interval problems is avoided;
2. the circuit is optimally designed, so that the problem of light source flicker caused by circuit problems is avoided;
3. all lamps in the lamp are controlled to be started synchronously, so that mutual influence between the lamps is effectively avoided;
4. the JW1691D execution chip is adopted to accurately control the current output to each lamp, and the stability and uniformity of light emitting of each lamp are guaranteed.
Drawings
FIG. 1 is a block flow diagram of the present invention;
FIG. 2 is a block flow diagram of a cycle data acquisition calculation of the present invention;
FIG. 3 is a flow diagram of the data processing of the present invention;
FIG. 4 is a block diagram of the process of obtaining the light-off brightness value according to the impact factor of the present invention;
FIG. 5 is a block diagram of the process of controlling the turning on and off of the lamp according to the present invention;
FIG. 6 is a circuit diagram of the control module of the present invention;
FIG. 7 is a circuit diagram of a power module and an execution module of the present invention.
1-power module, 2-execution module and 3-control module.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present 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.
The technical solution of the present invention is further described below by way of examples with reference to the accompanying drawings.
Example (b): in this embodiment, as shown in 1~5, a method for controlling light of a lamp includes the following steps:
s1: carrying out cycle data acquisition and calculation to obtain an influence factor;
s2: obtaining a light-off brightness value according to the influence factor;
s3: and setting a light-on brightness value, and controlling the on-off of the lamp according to the light-on brightness value and the light-off brightness value.
The cyclic data acquisition calculation in the step S1 comprises the following steps:
s21: setting a cycle period and a sampling frequency;
s22: sampling the ambient brightness before and after the lamp is turned on according to the sampling frequency in each cycle period;
s23: and carrying out data processing according to the ambient brightness before and after the lamp is turned on to obtain the influence factors in the cycle period.
It should be noted that the ambient brightness after the lamp is turned on herein refers to the ambient brightness when the lamp is turned on.
Wherein, the data processing in step S23 includes the following steps:
s31: averaging the ambient brightness before and after the lamp is turned on in the cycle period to obtain an average value of the ambient brightness before the lamp is turned on and an average value of the ambient brightness after the lamp is turned on;
s32: and dividing the average value of the ambient brightness after the lamp is turned on by the average value of the ambient brightness before the lamp is turned on to obtain the influence factor in the cycle period.
The step S2 of obtaining the light-off brightness value according to the influence factors comprises the following steps:
s41: averaging the ambient brightness after the lamp is turned on to obtain an average ambient brightness after the lamp is turned on;
s42: multiplying the average value of the ambient brightness after the lamp is turned on by the influence factor to obtain the influence quantity in the cycle period;
s43: and adding the influence quantity to the average value of the environment brightness after the lamp is turned on to obtain the lamp turn-off brightness value in the cycle period.
The influence factor is the influence degree of the lamp on the ambient brightness after the lamp is turned on, and the quantity is introduced and then the processing is carried out, so that the lighting interval of the light-operated lamp is effectively widened, and the range of the lighting interval is larger than the added value of the ambient brightness caused by the lighting of the lamp.
Wherein, the step S3 of controlling the turning on and off of the lamp comprises the following steps:
s51: acquiring the environment brightness in real time to obtain a real-time environment brightness value;
s52: comparing the real-time environment brightness value with the light-off brightness value of the last cycle period, and if the real-time environment brightness value is greater than the light-off brightness value of the last cycle period, turning off the light; if the real-time environment brightness value is smaller than the light-off brightness value of the last cycle period, keeping the light-on state;
s53: comparing the real-time environment brightness value with the set light-on brightness value, and operating to turn on the light if the real-time environment brightness value is smaller than the set light-on brightness value; and if the real-time environment brightness value is greater than the set light-on brightness value, keeping the light-off state.
The operation of turning on the lamps in step S53 is to synchronously control the synchronous turning on of all the lamps in the lamp at the zero-crossing point of the alternating current. All lamps in the lamp are controlled to be started synchronously, so that mutual influence among the lamps is avoided.
As shown in fig. 6 to 7, the circuit includes a power module 1 for providing power; the execution module 2 is used for executing the turning on and turning off of the lamp; and the control module 3 is used for controlling the on and off of the lamp.
The power module comprises a rectifier bridge and a polar capacitor CD211, two input ends of the rectifier bridge are respectively connected with a live wire and a zero line, a positive electrode output end of the rectifier bridge is connected with a positive electrode of the polar capacitor CD211, and a negative electrode of the polar capacitor CD211 is connected with a negative electrode output end of the rectifier bridge and grounded.
The execution module comprises an execution chip with the model number of JW1691D, an MOS (metal oxide semiconductor) tube and a plurality of light emitting diodes connected in series, wherein the first output end of the execution chip is connected with the anode of the diode, the second output end of the execution chip is connected with the source electrode of the MOS tube, and the drain electrode of the MOS tube is connected with the cathode of the light emitting diode; the EXT1 end of the executive chip is connected with a resistor RS32, the other end of the resistor RS32 is connected with the anode of a voltage stabilizing diode ZS61A, and the cathode of the voltage stabilizing diode ZS61A is connected with the anode output end of the rectifier bridge through a resistor RS61B and a resistor RS61A which are connected in series; the GND1 end of the executive chip is connected with a resistor RS31, a capacitor CS61 and the anode of a voltage stabilizing diode ZS61B, the other end of the resistor RS31 is connected with the anode of the voltage stabilizing diode ZS61A, and the cathodes of the capacitor CS61 and the voltage stabilizing diode ZS61B are both grounded; the EXT2 end of the execution chip is connected with one end of a resistor RS34, and the other end of the resistor RS34 and the GND2 end of the execution chip are both grounded; the JW1691D type is adopted as an execution chip, the current output to the light emitting diodes can be accurately controlled, and the stability and uniformity of light emitting of each light emitting diode are guaranteed.
The control module comprises a control chip with the model number of SDS7322H and a photosensitive sensor, wherein the signal input end of the control chip is connected with the signal output end of the photosensitive sensor, and the signal output end (namely the PWM output end) of the control chip is connected with the grid electrode of the MOS tube; the VDD end of the control chip is connected with a 5V direct-current power supply; the ZCD end of the control chip is connected with a resistor RS34B and a resistor RS34C, the other end of the resistor RS34C is grounded, and the resistor RS34B is connected to the zero line access end of the rectifier bridge through a resistor RS 34A; and the seventh pin of the control chip is connected with the sixth pin and the signal output end of the photosensitive sensor through a resistor RS 33. In addition, the control of the circuit and the setting of relevant parameters in the circuit avoid the problem of flicker of the light source and simultaneously ensure that the light fluctuation of the lamp conforms to ERP standard (namely Pst <1, SVM < -0.4).
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A light control method for a lamp is characterized by comprising the following steps:
s1: carrying out cycle data acquisition and calculation to obtain an influence factor;
s2: obtaining a light-off brightness value according to the influence factor;
s3: setting a light-on brightness value, and controlling the on-off of the lamp according to the light-on brightness value and the light-off brightness value;
the cyclic data acquisition calculation in the step S1 comprises the following steps:
s21: setting a cycle period and a sampling frequency;
s22: sampling the ambient brightness before and after the lamp is turned on according to the sampling frequency in each cycle period;
s23: processing data according to the ambient brightness before and after the lamp is turned on to obtain an influence factor in the cycle period;
the data processing in step S23 includes the steps of:
s31: averaging the ambient brightness before and after the lamp is turned on in the cycle period to obtain an average value of the ambient brightness before the lamp is turned on and an average value of the ambient brightness after the lamp is turned on;
s32: dividing the average value of the ambient brightness after the lamp is turned on by the average value of the ambient brightness before the lamp is turned on to obtain an influence factor in the cycle period;
the step S2 of obtaining the light-off brightness value according to the influence factor comprises the following steps:
s41: averaging the ambient brightness after the lamp is turned on to obtain an average ambient brightness after the lamp is turned on;
s42: multiplying the average value of the ambient brightness after the lamp is turned on by the influence factor to obtain the influence quantity in the cycle period;
s43: adding the influence quantity to the average value of the environment brightness after the lamp is turned on to obtain the lamp turn-off brightness value in the cycle period;
the step S3 of controlling the turning on and off of the lamp includes the following steps:
s51: acquiring the environment brightness in real time to obtain a real-time environment brightness value;
s52: comparing the real-time environment brightness value with the light-off brightness value of the last cycle period, and if the real-time environment brightness value is greater than the light-off brightness value of the last cycle period, turning off the light; if the real-time environment brightness value is smaller than the light-off brightness value of the last cycle period, the light-on state is kept;
s53: comparing the real-time environment brightness value with the set light-on brightness value, and operating to turn on the light if the real-time environment brightness value is smaller than the set light-on brightness value; and if the real-time environment brightness value is greater than the set light-on brightness value, keeping the light-off state.
2. The method as claimed in claim 1, wherein the turning on operation in step S53 is to synchronously control the synchronous turning on of all lamps in the lamp at the zero-crossing point of the alternating current.
3. A circuit for performing the light control method of claim 1 or 2, comprising
A power supply module (1) for providing power;
the execution module (2) is used for executing the turning on and off of the lamp;
and the control module (3) is used for controlling the on and off of the lamp.
4. The light control circuit of claim 3, characterized in that the power module (1) comprises a rectifier bridge and a polar capacitor CD211, two input ends of the rectifier bridge are respectively connected with the live line and the neutral line, a positive output end of the rectifier bridge is connected with a positive electrode of the polar capacitor CD211, and a negative electrode of the polar capacitor CD211 is connected with a negative output end of the rectifier bridge and grounded.
5. The light control circuit of claim 4, characterized in that the executive module (2) comprises an executive chip, a MOS (metal oxide semiconductor) and a plurality of light emitting diodes connected in series, wherein a first output end of the executive chip is connected with an anode of the diode, a second output end of the executive chip is connected with a source electrode of the MOS, and a drain electrode of the MOS is connected with a cathode of the light emitting diode.
6. The light control circuit of claim 5, wherein the control module (3) comprises a control chip and a photosensitive sensor, a signal input end of the control chip is connected with a signal output end of the photosensitive sensor, and a signal output end of the control chip is connected with a gate of the MOS transistor.
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| CN202010843561.3A CN112040615B (en) | 2020-08-20 | 2020-08-20 | Light control method and circuit for lamp |
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| CN202010843561.3A CN112040615B (en) | 2020-08-20 | 2020-08-20 | Light control method and circuit for lamp |
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| CN112040615B true CN112040615B (en) | 2022-12-27 |
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Effective date of registration: 20240220 Address after: 332200 chiwu garden, Zhizao Town, economic development zone, Ruichang City, Jiujiang City, Jiangxi Province Patentee after: Jiangxi kaiyao Lighting Co.,Ltd. Country or region after: China Address before: 315800 No.5, Dapu Hebei Road, Beilun Science Park, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO KLITE ELECTRIC MANUFACTURE Co.,Ltd. Country or region before: China |