CN108167779A - The high-precision control light method of LED light - Google Patents

The high-precision control light method of LED light Download PDF

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Publication number
CN108167779A
CN108167779A CN201711360362.1A CN201711360362A CN108167779A CN 108167779 A CN108167779 A CN 108167779A CN 201711360362 A CN201711360362 A CN 201711360362A CN 108167779 A CN108167779 A CN 108167779A
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China
Prior art keywords
resistance
microcontroller
electrically connected
capacitance
led lamp
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Granted
Application number
CN201711360362.1A
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Chinese (zh)
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CN108167779B (en
Inventor
姚斌雄
吕振远
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Ningbo Klite Electric Manufacture Co Ltd
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Ningbo Klite Electric Manufacture Co Ltd
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
    • 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]
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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

Abstract

The invention discloses a kind of high-precision control light method of LED light, including visual photometric brightness sensor, the optical filtering on the probe of visual photometric brightness sensor, the cosine corrector being connect with optical filtering, microcontroller, driving circuit and several LED lamp beads；Microcontroller is electrically connected respectively with visual photometric brightness sensor and driving circuit, and driving circuit is electrically connected respectively with each LED lamp bead；The probe of visual photometric brightness sensor is connect with optical filtering, and optical filtering is connect with cosine corrector.The present invention has control accuracy height, it is not easy to the characteristics of malfunctioning.

Description

The high-precision control light method of LED light
Technical field
The present invention relates to LED light equipment technical field, more particularly, to a kind of control accuracy height, it is not easy to malfunction LED light high-precision control light method.
Background technology
The light-sensitive device of light-operated circuit is mostly using devices such as photo resistance, phototriodes as light detector, this kind of device Part output discreteness is big, i.e., equal illumination output current value deviation is larger.Circuit mostly using voltage comparator, sets fixed valve Value controls the switch of lamp, and control accuracy is poor, easily malfunction.
Invention content
The goal of the invention of the present invention is to overcome light-operated circuit control accuracy of the prior art poor, malfunction easily occurs The deficiency of work it is high to provide a kind of control accuracy, it is not easy to the high-precision control light method of the LED light malfunctioned.
To achieve these goals, the present invention uses following technical scheme：
A kind of high-precision control light method of LED light, including visual photometric brightness sensor, set on visual photometric brightness sensor Optical filtering on probe, the cosine corrector being connect with optical filtering, microcontroller, driving circuit and several LED lamp beads；Microcontroller It is electrically connected respectively with visual photometric brightness sensor and driving circuit, driving circuit is electrically connected respectively with each LED lamp bead；Visible ray The probe of illuminance transducer is connect with optical filtering, and optical filtering is connect with cosine corrector；Include the following steps：
Illuminance voltage value and the table of comparisons of illuminance value are stored in (1-1) microcontroller, it is seen that illuminance sensor is examined The illuminance voltage value of environment is surveyed, the microcontroller inquiry table of comparisons obtains the illuminance value of environment；
(1-2) first mounted LED lamp：
(1-2-1) makes each LED lamp bead lighting time T1, for detecting whether lamp electrical connection installs；Simultaneously, it is seen that Illuminance sensor detects to obtain illuminance value xLUX；
(1-2-2) microcontroller controls each LED lamp bead to close；
(1-2-3) visual photometric brightness sensor detects to obtain ambient lighting angle value yLUX；
As yLUX≤100LUX, microcontroller controls each LED lamp bead delay time T2 to light；
(1-3) normal operating condition：
(1-3-1) microcontroller calculates zLUX using formula zLUX=xLUX-yLUX, and microcontroller is controlled by driving circuit LED light output illumination angle value zLUX；
(1-3-2) visual photometric brightness sensor detects to obtain the illuminance value A of current environment；
As A≤100LUX, microcontroller controls each LED lamp bead to light；
As 300LUX≤A≤100LUX, microcontroller controls each LED lamp bead to maintain state；
As A ＞ (300LUX+xLUX-yLUX), microcontroller controls each LED lamp bead to close.
Visual photometric brightness sensor and the linear electric current output relation of illuminance, it is more convenient to calculate control.
Optical filtering is used to correct the relative sensitivity curves of the photosensitive probe of visual photometric brightness sensor, makes relative sensitivity Curve makes visual photometric brightness sensor have higher precision closer to visibility function curve.
Light on cosine corrector tested surface can not possibly both be from vertical direction, it is therefore necessary to carry out cosine amendment, make spy Different photoresponse meets cosine relation, is a kind of light-passing plastic such as PC etc., when light is incident on diffusive transmissive material, probe What is received is always diffused light.
Microcontroller reads in the voltage signal of visual photometric brightness sensor detection, and the AD conversion module of microcontroller is by voltage signal Voltage value is converted into, voltage signal and the table of comparisons of illuminance value are stored in microcontroller；According to the ambient light illumination detected The illuminance of output is turned on light, turns off the light and is adjusted in value, control, and control accuracy of the present invention is high, it is not easy to malfunction.
Preferably, driving circuit includes rectification circuit, control circuit, driving signal output circuit and regulator circuit；Control Circuit processed is electrically connected respectively with rectification circuit and driving signal output circuit, driving signal output circuit, regulator circuit and monolithic Machine is sequentially connected electrically.
Preferably, the control circuit includes control chip and several resistance, control chip respectively with each resistance Electrical connection.
Preferably, the model BP2833A of the control chip.
Preferably, driving signal output circuit includes resistance RS61A, resistance RS61B, resistance RS61C, resistance RS61D With resistance RS27, diode DS31, inductance L21 and capacitance C21；One end and resistance of resistance RS61A and resistance RS61C parallel connections One end of RS61B and resistance RS61D parallel connections is electrically connected, the other end of resistance RS61A and resistance RS61C parallel connections respectively with diode DS31 cathode, capacitance C21 one end and the electrical connection of resistance RS27 one end, capacitance C21 and the resistance RS27 other ends with inductance L21 mono- End electrical connection, the inductance L21 other ends are electrically connected respectively with diode DS31 anodes and control chip, resistance RS61B and resistance The other end of RS61D parallel connections is electrically connected with control chip.
Preferably, the regulator circuit includes resistance RS51A, resistance RS51B, resistance RS51C and resistance RS51D, electricity Hold CS51, capacitance CS52 and voltage-stabiliser tube ZS51；One end of resistance RS51A and resistance RS51C parallel connections and resistance RS51B and resistance The other end of one end electrical connection of RS51D parallel connections, resistance RS51A and resistance RS51C parallel connections is electrically connected with driving signal output circuit Connect, the other end of resistance RS51B and resistance RS51D parallel connections respectively with capacitance CS51 one end, capacitance CS52 one end and voltage-stabiliser tube ZS51 cathode are electrically connected, the capacitance CS51 other ends, the capacitance CS52 other ends and voltage-stabiliser tube ZS51 plus earths.
Preferably, the model 12F510 of microcontroller.
Preferably, T1 and T2 are 4 seconds to 8 seconds.
Therefore, the present invention has the advantages that：According to the ambient light illumination detected, control is turned on light, turns off the light and is adjusted The illuminance of output is saved, control accuracy is high, it is not easy to malfunction.
Description of the drawings
Fig. 1 is a kind of structure diagram of the present invention；
Fig. 2 is a kind of circuit diagram of microcontroller of the invention, visual photometric brightness sensor and regulator circuit；
Fig. 3 is a kind of circuit diagram of rectification circuit of the invention, control circuit and driving signal output circuit；
Fig. 4 is a kind of selection absorption-type glass function curve.
In figure：Cosine corrector 1, optical filtering 2, visual photometric brightness sensor 3, microcontroller 4, driving circuit 5, rectification circuit 51st, control circuit 52, driving signal output circuit 53, regulator circuit 54.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
The high-precision control light method of a kind of LED light as shown in Figure 1, including visual photometric brightness sensor 1, set on visible ray Optical filtering 2 on the probe of illuminance transducer, the cosine corrector 3 being connect with optical filtering, microcontroller 4, driving circuit 5 and 20 LED lamp bead；Microcontroller is electrically connected respectively with visual photometric brightness sensor and driving circuit, driving circuit respectively with each LED light Pearl is electrically connected；The probe of visual photometric brightness sensor is connect with optical filtering, and optical filtering is connect with cosine corrector；Including walking as follows Suddenly：
Step 100, illuminance voltage value and the table of comparisons of illuminance value are stored in microcontroller, it is seen that illuminance sensor The illuminance voltage value of environment is detected, the microcontroller inquiry table of comparisons obtains the illuminance value of environment；
Step 200, first mounted LED lamp：
Step 210, each LED lamp bead is made to light 5 seconds, simultaneously, it is seen that illuminance sensor detects to obtain illuminance value xLUX；
Step 220, microcontroller controls each LED lamp bead to close；
Step 230, it is seen that illuminance sensor detects to obtain ambient lighting angle value yLUX；
As yLUX≤100LUX, microcontroller controls each LED lamp bead to postpone to light for 5 seconds；
Step 300, normal operating condition：
Step 310, microcontroller calculates zLUX using formula zLUX=xLUX-yLUX, and microcontroller is controlled by driving circuit LED light output illumination angle value zLUX；
Step 320, it is seen that illuminance sensor is every the illuminance value A of the current environment of detection in 5 seconds；According to detecting Illuminance value A proceed as follows：
As A≤100LUX, microcontroller controls each LED lamp bead to light；
As 300LUX≤A≤100LUX, microcontroller controls each LED lamp bead to maintain state；
As A ＞ (300LUX+xLUX-yLUX), microcontroller controls each LED lamp bead to close.
As shown in figure 3, driving circuit includes rectification circuit 51, control circuit 52, driving signal output circuit 53 and such as Fig. 2 Shown regulator circuit 54；Control circuit is electrically connected respectively with rectification circuit and driving signal output circuit, drive signal output Circuit, regulator circuit and microcontroller are sequentially connected electrically.XA and XB in Fig. 3 are electrically connected with each LED light string；L and N connects with power supply It connects.
Control circuit includes control chip and 3 resistance, and control chip is electrically connected respectively with each resistance.Control chip Model BP2833A.
Driving signal output circuit includes resistance RS61A, resistance RS61B, resistance RS61C, resistance RS61D and resistance RS27, diode DS31, inductance L21 and capacitance C21；One end of resistance RS61A and resistance RS61C parallel connections and resistance RS61B and The other end of one end electrical connection of resistance RS61D parallel connections, resistance RS61A and resistance RS61C parallel connections is born respectively with diode DS31 Pole, capacitance C21 one end and the electrical connection of resistance RS27 one end, capacitance C21 and the resistance RS27 other ends are electrically connected with inductance L21 one end It connects, the inductance L21 other ends are electrically connected respectively with diode DS31 anodes and control chip, and resistance RS61B and resistance RS61D are in parallel The other end with control chip be electrically connected.
Regulator circuit includes resistance RS51A, resistance RS51B, resistance RS51C and resistance RS51D, capacitance CS51, capacitance CS52 and voltage-stabiliser tube ZS51；One end of resistance RS51A and resistance RS51C parallel connections it is in parallel with resistance RS51B and resistance RS51D one End electrical connection, the other end of resistance RS51A and resistance RS51C parallel connection are electrically connected with driving signal output circuit, resistance RS51B with The other end of resistance RS51D parallel connections is electrically connected respectively with capacitance CS51 one end, capacitance CS52 one end and voltage-stabiliser tube ZS51 cathode, electricity Hold the CS51 other ends, the capacitance CS52 other ends and voltage-stabiliser tube ZS51 plus earths.The model 12F510 of microcontroller.
As shown in figure 4, optical filtering is used to correct the relative sensitivity curves of the photosensitive probe of visual photometric brightness sensor, make Relative sensitivity curves make visual photometric brightness sensor have higher precision closer to visibility function curve.The present invention selects The selection absorption-type glass of optical filtering be QB11, the light of selection attenuation 410-490ns and 590-1090ns wavelength has and improves The effect of illumination photometry precision.
It should be understood that this embodiment is only used to illustrate the invention but not to limit the scope of the invention.In addition, it should also be understood that, After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc. Valency form is also fallen within the scope of the appended claims of the present application.

Claims (8)

1. a kind of high-precision control light method of LED light, it is characterized in that, including visual photometric brightness sensor (3), shone set on visible ray Spend the optical filtering (2) on the probe of sensor, the cosine corrector (1) being connect with optical filtering, microcontroller (4), driving circuit (5) With several LED lamp beads；Microcontroller is electrically connected respectively with visual photometric brightness sensor and driving circuit, driving circuit respectively with respectively A LED lamp bead electrical connection；The probe of visual photometric brightness sensor is connect with optical filtering, and optical filtering is connect with cosine corrector；Packet Include following steps：
Illuminance voltage value and the table of comparisons of illuminance value are stored in (1-1) microcontroller, it is seen that illuminance sensor detects ring The illuminance voltage value in border, the microcontroller inquiry table of comparisons, obtains the illuminance value of environment；
(1-2) first mounted LED lamp：
(1-2-1) makes each LED lamp bead lighting time T1, simultaneously, it is seen that illuminance sensor detects to obtain illuminance value xLUX；
(1-2-2) microcontroller controls each LED lamp bead to close；
(1-2-3) visual photometric brightness sensor detects to obtain ambient lighting angle value yLUX；
As yLUX≤100LUX, microcontroller controls each LED lamp bead delay time T2 to light；
(1-3) normal operating condition：
(1-3-1) microcontroller calculates zLUX using formula zLUX=xLUX-yLUX, and microcontroller controls LED light by driving circuit Output illumination angle value zLUX；
(1-3-2) visual photometric brightness sensor detects to obtain the illuminance value A of current environment；
As A≤100LUX, microcontroller controls each LED lamp bead to light；
As 300LUX≤A≤100LUX, microcontroller controls each LED lamp bead to maintain state；
As A ＞ (300LUX+xLUX-yLUX), microcontroller controls each LED lamp bead to close.
2. the high-precision control light method of LED light according to claim 1, it is characterized in that, driving circuit includes rectification circuit (51), control circuit (52), driving signal output circuit (53) and regulator circuit (54)；Control circuit respectively with rectification circuit and Driving signal output circuit is electrically connected, and driving signal output circuit, regulator circuit and microcontroller are sequentially connected electrically.
3. the high-precision control light method of LED light according to claim 2, it is characterized in that, the control circuit includes control Chip and several resistance, control chip are electrically connected respectively with each resistance.
4. the high-precision control light method of LED light according to claim 3, it is characterized in that, the model of the control chip BP2833A。
5. the high-precision control light method of LED light according to claim 3, it is characterized in that, driving signal output circuit includes Resistance RS61A, resistance RS61B, resistance RS61C, resistance RS61D and resistance RS27, diode DS31, inductance L21 and capacitance C21；One end of resistance RS61A and resistance RS61C parallel connections is electrically connected with one end of resistance RS61B and resistance RS61D parallel connections, resistance RS61A and the other end of resistance RS61C parallel connections are electric with diode DS31 cathode, capacitance C21 one end and resistance RS27 one end respectively Connection, capacitance C21 and the resistance RS27 other ends be electrically connected with inductance L21 one end, the inductance L21 other ends respectively with diode The other end of DS31 anodes and control chip electrical connection, resistance RS61B and resistance RS61D parallel connections is electrically connected with control chip.
6. the high-precision control light method of LED light according to claim 2, it is characterized in that, the regulator circuit includes resistance RS51A, resistance RS51B, resistance RS51C and resistance RS51D, capacitance CS51, capacitance CS52 and voltage-stabiliser tube ZS51；Resistance RS51A It is electrically connected with one end of resistance RS51C parallel connections with one end of resistance RS51B and resistance RS51D parallel connections, resistance RS51A and resistance The other end of RS51C parallel connections is electrically connected with driving signal output circuit, the other end point of resistance RS51B and resistance RS51D parallel connections It is not electrically connected with capacitance CS51 one end, capacitance CS52 one end and voltage-stabiliser tube ZS51 cathode, the capacitance CS51 other ends, capacitance CS52 are another One end and voltage-stabiliser tube ZS51 plus earths.
7. the high-precision control light method of the LED light according to claims 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, microcontroller Model 12F510.
8. the high-precision control light method of the LED light according to claims 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, T1 and T2 It is 4 seconds to 8 seconds.
CN201711360362.1A 2017-12-15 2017-12-15 High-precision light control method of LED lamp Active CN108167779B (en)

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