CN105979663A - LED street lamp auto-adaptive to change of ambient brightness - Google Patents
LED street lamp auto-adaptive to change of ambient brightness Download PDFInfo
- Publication number
- CN105979663A CN105979663A CN201610565720.1A CN201610565720A CN105979663A CN 105979663 A CN105979663 A CN 105979663A CN 201610565720 A CN201610565720 A CN 201610565720A CN 105979663 A CN105979663 A CN 105979663A
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- China
- Prior art keywords
- street lamp
- circuit
- light
- resistance
- emitting diode
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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]
- H05B45/10—Controlling the intensity of the light
Abstract
The invention provides an LED street lamp auto-adaptive to the change of ambient brightness. The LED street lamp is characterized by comprising a 12V DC power supply, a light signal detection and amplification circuit, a unidirectional silicon controlled rectifier trigger and control circuit and a light-emitting diode combination circuit. According to the LED street lamp auto-adaptive to the change of ambient brightness, a photosensitive mode is adopted for control, and control of the street lamp is converted into dispersed and respective control from original centralized control on the whole When illumination of ambient light is weak or dark, the light changing street lamp automatically lights up and the brightness automatically adjusts. The light changing street lamp can automatically light up according to the illumination situation of the road environment, such as rainy or hazy days or foggy days and other natural environmental factors, and the brightness of the street lamp can automatically adjust. The street lamp has the characteristics of being simple in circuit structure and reliable in working performance and can be used for lighting of park touring, parking lots, construction sites and other occasions. The original circuit wiring of the street lamp does not need to be damaged or changed in installation so that the effect is great through actual use.
Description
Technical field
The invention belongs to electronics and illumination automatic control technology field, relate to a kind of ambient brightness that automatically adapts to and become
The LED street lamp changed.
Background technology
Town road street lamp is to the time of regulation, and whole city opens simultaneously or simultaneously close off, for some section because of
Building or the impact of shade tree, need to open in advance street lamp, and some section or square ambient light are relatively more abundant,
Can open street lamp later, there is not selective work in this street lamp, and street lamp wants bright the brightest, go out all
Go out.
The LED street lamp of automatic adaptation ambient brightness of the present invention change takes photosensitive mode to control, street lamp
By original whole centralized Control, it is changed into dispersion and each controls.When the illumination of ambient light is more weak or darkness
Time, darkening street lamp will light automatically, and brightness simultaneously can be automatically adjusted.It can be according to the illumination of road environment
Situation, such as: run into overcast and rainy or haze sky, or when playing the factor of natural environments such as greasy weather, darkening street lamp energy
Automatically open up, the most automatically adjust the brightness of street lamp.Additionally, it contributes to reducing the power consumption of street lamp, prolonging
The effects such as the service life of long darkening street lamp, minimizing maintenance cost, reduction light fixture turnover rate, darkening road simultaneously
Lamp is that town road street lamp provides a kind of intelligentized control method pattern.
The LED street lamp of automatic adaptation ambient brightness of the present invention change has that circuit is simple, working stability,
Dependable performance, circuit only uses a small amount of common discrete component, and cost of manufacture only needs tens yuan, is suitable for work
Factory's batch exploitation.
Automatically the LED street lamp adapting to ambient brightness change has the spies such as simple, the reliable working performance of circuit structure
Point, can be used for park visit a park, parking lot, the illumination in the place such as building site.Need not destroy or change former during installation
There is the wiring of street lamp circuit, fine through practical effect.
The LED street lamp of automatic adaptation ambient brightness of the present invention described further below change is in implementation process
Necessity involved by, guardian technique content.
Summary of the invention
Goal of the invention and beneficial effect: the LED street lamp of automatic adaptation ambient brightness of the present invention change is adopted
Taking photosensitive mode to control, street lamp, by original whole centralized Control, is changed into dispersion and each controls.Work as environment
The illumination of light is more weak or at dark, darkening street lamp will be lighted automatically, and brightness simultaneously can be automatically adjusted.It
Can be according to the light situation of road environment, such as: run into overcast and rainy or haze sky, or play the natural rings such as greasy weather
During the factor of border, darkening street lamp can automatically open up, and the most automatically adjusts the brightness of street lamp.
Automatically the LED street lamp adapting to ambient brightness change has the spies such as simple, the reliable working performance of circuit structure
Point, can be used for park visit a park, parking lot, the illumination in the place such as building site.Need not destroy or change former during installation
There is the wiring of street lamp circuit, fine through practical effect.
Circuit operation principle: time by day, adapts to the LED street lamp of ambient brightness change automatically due to photosensitive electricity
Resistance RG is presented low resistance by the irradiation of nature light, and the base potential of NPN type triode VT1 is low so that it is
Less than bias voltage, NPN type triode VT1 is made to be in cut-off state, the control pole of unidirectional controllable silicon S CR
Being turned off because of low level, bright white light-emitting diode LED1～LED12 does not works.After darkness, because of light
Quick resistance RG is unglazed according to presenting high value, and NPN type triode VT1 obtains forward bias and turns on, unidirectional can
Control silicon SCR control pole obtain forward trigger voltage and turn on, make bright white light-emitting diode LED1～
LED12 obtains electroluminescence.
In the case of ambient light difference, the resistance of photoconductive resistance RG changes therewith, NPN type triode VT1
Showing as conducting or half on or off consecutive variations the most therewith, the control pole of unidirectional controllable silicon S CR obtains
Trigger voltage also followed by change, the then equally and then change of the unidirectional controllable silicon S CR angle of flow, thus causes height
The luminosity of brilliant white light-emitting diode LED1～LED12 also follows synchronization to change.
Technical characteristic: automatically adapting to the LED street lamp of ambient brightness change, it includes 12V DC source, light
Signal detection triggers and control circuit, light emitting diode combined circuit with amplifying circuit, one-way SCR, its
It is characterised by:
Optical signal detecting and amplifying circuit: it is by photoconductive resistance RG, resistance R1, linear potentiometer RP, resistance
R2, NPN type triode VT1 and resistance R3 composition, one end of a terminating resistor R1 of photoconductive resistance RG and
One end of resistance R2, the other end wiring of the other end connection circuit ground GND, resistance R1 of photoconductive resistance RG
One end of potentiometer RP, the other end of linear potentiometer RP and movable end connection circuit positive pole VCC, resistance
The base stage of another termination NPN type triode VT1 of R2, the colelctor electrode connection circuit of NPN type triode VT1 is just
Pole VCC, the emitter stage of NPN type triode VT1 is by resistance R3 connection circuit ground GND；
One-way SCR triggers and control circuit: it is made up of switching diode D1, unidirectional controllable silicon S CR,
The positive pole of switching diode D1 connects the emitter stage of NPN type triode VT1, and the negative pole of switching diode D1 connects
The control pole of unidirectional controllable silicon S CR, the negative electrode connection circuit ground GND of unidirectional controllable silicon S CR, one-way SCR
The anode sending and receiving optical diode combinational circuit of SCR；
Light emitting diode combined circuit: it is made up of bright white light-emitting diode LED1～LED12, highlighted
The negative pole of white light emitting diode LED4, the negative pole of bright white light-emitting diode LED8 and highlighted white light are sent out
The negative pole order of optical diode LED12 to the anode of controllable silicon SCR, bright white light-emitting diode LED1～
LED4 is serially connected, and bright white light-emitting diode LED5～LED8 is serially connected, highlighted white light light-emitting diodes
Pipe LED9～LED12 is serially connected, the positive pole of bright white light-emitting diode LED1 and highlighted white-light emitting two
The positive pole of pole pipe LED5 and the positive pole connection circuit positive pole VCC of bright white light-emitting diode LED9；
The positive pole of 12V DC source is connected with circuit anode VCC, the negative pole of 12V DC source and circuit ground GND
It is connected.
Accompanying drawing explanation
Accompanying drawing 1 is one embodiment of LED street lamp circuit automatically adapting to ambient brightness change that the present invention provides
Circuit fundamental diagram.
Detailed description of the invention
According to the LED street lamp circuit fundamental diagram automatically adapting to ambient brightness change shown in accompanying drawing 1 and attached
Figure explanation, and according to annexation between components and parts in each several part circuit described in summary of the invention, and implement
Components and parts technical parameter described in mode requires and circuit production main points carry out enforcement and can realize the present invention,
Below in conjunction with embodiment, the correlation technique of the present invention is further described.
The technical parameter of components and parts and selection requirement
RG is photoconductive resistance, and the model of selection is MG45, it is desirable to bright resistance is not more than 6K Ω, and resistance in the dark is not less than
1MΩ；
VT1 is NPN type triode, and the model of selection is 2SC9013, it is desirable to β >=150；
D1 is switching diode, and the model of selection is 1N4148；
SCR is one-way SCR, can use the one-way SCR of the optional model of 1A/100V；
RP is linear potentiometer, and the resistance of selection is 47K Ω；
R1～R3 selects 1/2W metalfilmresistor, and its resistance is respectively 100K Ω, 62K Ω, 1.6K Ω；
LED1～LED12 is bright white light-emitting diode, selects 12 ￠ 8 bright white light-emitting diodes；
DC is 12V DC source, it is recommended to use the 12V D.C. regulated power supply of output electric current >=2A.
Circuit production main points and circuit debugging
Fairly simple, generally only because automatically adapting to the circuit structure of the LED street lamp of ambient brightness change
Electronic devices and components performance to be selected is intact, and the components and parts annexation in accompanying drawing 1 is carried out to specifications
Welding, physical connection line and welding quality are after going through correctly, and the circuit of the present invention has only to
Debug simply and can normally work；
Photoconductive resistance RG be placed in plastic casing natural light and street lamp light-illuminating less than position, requirement simultaneously
Moonlight also according to less than position；
Connect 12V DC source, slow linear adjustment potentiometer RP so that the most highlighted white-light emitting two
Pole pipe LED1～LED12 does not works, evening bright white light-emitting diode LED1～LED12 all light.
The circuit structure design of the present invention, components' placement, and its architectural feature, face shaping and chi
Very little sizes etc. are not the key technology of the present invention, are not claimed guardian technique content,
Because not affecting the realization of specific implementation process of the present invention and goal of the invention, therefore illustrate the most one by one.
Claims (1)
1. a LED street lamp for automatic adaptation ambient brightness change, it includes 12V DC source, optical signal
Detection triggers and control circuit, light emitting diode combined circuit with amplifying circuit, one-way SCR, its feature
It is:
Described optical signal detecting and amplifying circuit are by photoconductive resistance RG, resistance R1, linear potentiometer RP, electricity
Resistance R2, NPN type triode VT1 and resistance R3 composition, one end of a terminating resistor R1 of photoconductive resistance RG
With one end of resistance R2, the other end wiring of the other end connection circuit ground GND, resistance R1 of photoconductive resistance RG
One end of property potentiometer RP, the other end of linear potentiometer RP and movable end connection circuit positive pole VCC thereof, resistance
The base stage of another termination NPN type triode VT1 of R2, the colelctor electrode connection circuit of NPN type triode VT1 is just
Pole VCC, the emitter stage of NPN type triode VT1 is by resistance R3 connection circuit ground GND；
Described one-way SCR triggers and is made up of switching diode D1, unidirectional controllable silicon S CR with control circuit,
The positive pole of switching diode D1 connects the emitter stage of NPN type triode VT1, and the negative pole of switching diode D1 connects
The control pole of unidirectional controllable silicon S CR, the negative electrode connection circuit ground GND of unidirectional controllable silicon S CR, one-way SCR
The anode sending and receiving optical diode combinational circuit of SCR；
Described light emitting diode combined circuit is made up of bright white light-emitting diode LED1～LED12, high
The negative pole of brilliant white light-emitting diode LED4, the negative pole of bright white light-emitting diode LED8 and highlighted white light
The negative pole order of LED 12 to the anode of controllable silicon SCR, bright white light-emitting diode LED1～
LED4 is serially connected, and bright white light-emitting diode LED5～LED8 is serially connected, highlighted white light light-emitting diodes
Pipe LED9～LED12 is serially connected, the positive pole of bright white light-emitting diode LED1 and highlighted white-light emitting two
The positive pole of pole pipe LED5 and the positive pole connection circuit positive pole VCC of bright white light-emitting diode LED9；
The positive pole of described 12V DC source is connected with circuit anode VCC, the negative pole of 12V DC source and electricity
Ground, road GND is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565720.1A CN105979663A (en) | 2016-07-18 | 2016-07-18 | LED street lamp auto-adaptive to change of ambient brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565720.1A CN105979663A (en) | 2016-07-18 | 2016-07-18 | LED street lamp auto-adaptive to change of ambient brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105979663A true CN105979663A (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610565720.1A Pending CN105979663A (en) | 2016-07-18 | 2016-07-18 | LED street lamp auto-adaptive to change of ambient brightness |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172001A (en) * | 2018-02-18 | 2018-06-15 | 周云侠 | Become LED traffic signal lamp according to ambient light |
| CN108738196A (en) * | 2018-04-24 | 2018-11-02 | 林泽泓 | Automatically keep the constant lighting lamp device of illumination contrast |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204968174U (en) * | 2015-08-24 | 2016-01-13 | 周云侠 | Optically -controlled LED illuminating lamp |
| CN205232509U (en) * | 2015-12-21 | 2016-05-11 | 杭州芯彩光电产品有限公司 | Nine sections LED flashing lights |
| CN205305174U (en) * | 2016-01-09 | 2016-06-08 | 扬州市光宇照明有限公司 | LED is energy -saving control actuating system for street lamp |
-
2016
- 2016-07-18 CN CN201610565720.1A patent/CN105979663A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204968174U (en) * | 2015-08-24 | 2016-01-13 | 周云侠 | Optically -controlled LED illuminating lamp |
| CN205232509U (en) * | 2015-12-21 | 2016-05-11 | 杭州芯彩光电产品有限公司 | Nine sections LED flashing lights |
| CN205305174U (en) * | 2016-01-09 | 2016-06-08 | 扬州市光宇照明有限公司 | LED is energy -saving control actuating system for street lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172001A (en) * | 2018-02-18 | 2018-06-15 | 周云侠 | Become LED traffic signal lamp according to ambient light |
| CN108738196A (en) * | 2018-04-24 | 2018-11-02 | 林泽泓 | Automatically keep the constant lighting lamp device of illumination contrast |
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Application publication date: 20160928 |