CN102256420A - Intelligent dimming device for LED (light-emitting diode) streetlamp - Google Patents
Intelligent dimming device for LED (light-emitting diode) streetlamp Download PDFInfo
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- CN102256420A CN102256420A CN2011102075757A CN201110207575A CN102256420A CN 102256420 A CN102256420 A CN 102256420A CN 2011102075757 A CN2011102075757 A CN 2011102075757A CN 201110207575 A CN201110207575 A CN 201110207575A CN 102256420 A CN102256420 A CN 102256420A
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- led
- mcu controller
- intelligent dimming
- dimming device
- street lamp
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- 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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Abstract
The invention relates to an intelligent dimming device for an LED (light-emitting diode) streetlamp, which comprises a power supply circuit, an LED driving circuit and an MCU (micro-programmed control unit) controller, wherein the LED driving circuit and the MCU controller are connected to the power supply circuit; multipath LED lamps are connected to the LED driving circuit; and a photosensitive inductor which is used for detecting the brightness change of ambient light and transmitting a signal to the MCU controller so as to adjust the brightness of the multipath LED lamps, is connected to the MCU controller. The invention aims to overcome the defect of the prior art and provides the intelligent dimming device for the LED streetlamp which can be used for adjusting the brightness of the streetlamp light according to the environmental climate and the brightness of the ambient light.
Description
[technical field]
The present invention relates to a kind of intelligent dimming device of LED street lamp.
[background technology]
Street lamp is the chief component of city illumination engineering, though street lamp is changed to the LED illumination by traditional bulb gradually, but the common LED street lamp has just improved the conversion efficiency of electric energy to luminous energy, the common LED street lamp is the same with the conventional high-tension sodium vapor lamp, remain according to traditional mode illumination, can not be along with the environment climate, the strong and weak lamplight brightness of in time regulating of the brightness of surround lighting, cause certain energy waste, because traditional LED street lamp is to open in wink to close in wink, and transitional street lamps all need be equipped with the brightness that the photoelectricity electrical control cubicles is regulated street lamp, and cost is bigger.
The present invention makes in view of the situation.
[summary of the invention]
The present invention has overcome the deficiencies in the prior art, and a kind of LED street lamp intelligent dimming device that can in time in time regulate lamplight brightness according to the brightness power of environment climate and surround lighting is provided.
The present invention is for solving the problems of the technologies described above, by the following technical solutions:
A kind of intelligent dimming device of LED street lamp, include power circuit and led drive circuit that is connected with power circuit and MCU controller, on led drive circuit, be connected with the LED multi-path lamp, it is characterized in that on described MCU controller, also being connected with that the brightness that can detect surround lighting changes and send signal to the MCU controller to regulate the light-inductive device of LED multi-path lamp brightness.
The intelligent dimming device of aforesaid a kind of LED street lamp is characterized in that described light-inductive device is two.
The intelligent dimming device of aforesaid a kind of LED street lamp is characterized in that described light-inductive device includes photodiode.
The intelligent dimming device of aforesaid a kind of LED street lamp, it is characterized in that described led drive circuit includes PWM pulse-width modulation circuit group and constant-current control circuit group, the input of described PWM pulse-width modulation circuit group links to each other with the output of MCU controller, and the output of described constant-current control circuit group links to each other with the input of LED multi-path lamp.
The intelligent dimming device of aforesaid a kind of LED street lamp is characterized in that described PWM pulse-width modulation circuit includes the eight tunnel anti-phase buffer modules that the signal that the MCU controller can be sent transfers ternary output to.
The intelligent dimming device of aforesaid a kind of LED street lamp is characterized in that described constant-current control circuit group includes constant flow module.
The intelligent dimming device of aforesaid a kind of LED street lamp is characterized in that being connected with the fan circuit of its heat that can leave fast on described MCU controller.
The intelligent dimming device of aforesaid a kind of LED street lamp is characterized in that described MCU controller is a MCU control chip.
The present invention compared with prior art has following advantage:
The present invention adopts and be connected with the light-inductive device on the MCU controller, the light-inductive device sends the MCU controller to after leading to the brightness that detects surround lighting, the MCU controller judges that by analysis the back produces the brightness that pwm signal is adjusted the LED multi-path lamp, when the brightness of surround lighting is more weak, strengthen the brightness of LED multi-path lamp, when the brightness of surround lighting is strong, weaken the brightness of LED multi-path lamp, to reach the purpose of energy savings.
Induction by the light-inductive device, the time-delay that the MCU controller can be regulated the LED multi-path lamp is automatically opened or is delayed time and closes and intensity of light, this switch is the electric current that increases the electric current of LED gradually and reduce LED gradually, this just no longer needs to regulate by the photoelectricity electrical control cubicles brightness of LED light, has saved cost.
[description of drawings]
Fig. 1 is circuit frame figure of the present invention;
Fig. 2 is a circuit diagram of the present invention;
Fig. 3 is a circuit diagram of the present invention.
[embodiment]
The present invention is described in detail below in conjunction with accompanying drawing:
A kind of intelligent electric-saving device of LED street lamp, include power circuit 1 and led drive circuit 2 that is connected with power circuit 1 and MCU controller 3, on led drive circuit 2, be connected with LED multi-path lamp 4, be connected with also on described MCU controller 3 that the brightness that can detect surround lighting changes and send signal to MCU controller 3 to regulate the light-inductive device 5 of LED multi-path lamp 4 brightness.
Use LED as street lighting, because of itself photoelectric characteristic has than traditional high-pressure sodium lamp or high-pressure mercury-vapor lamp higher efficient is arranged, significantly energy savings.Because LED is to use and powers after the AC/DC voltage stabilizing, allow the power supply input range of broad, illumination efficiency is not subjected to the influence of voltage ripple of power network, and this also can improve the efficient of illumination.
Described light-inductive device 5 is two.
Described light-inductive device 5 comprises photodiode Q6, Q7, photodiode Q6, the Q7 resistor that to be a kind of resistance value change with the power of incident light, and incident intensity, resistance reduces, and a little less than the incident light, resistance increases.When the brightness of surround lighting was strong, light-inductive device 5 sent signal to MCU controller 3, by the adjusting of MCU controller 3, and the brightness deterioration of LED multi-path lamp 4; When a little less than the brightness of surround lighting, light-inductive device 5 sends signal to MCU controller 3, and by the adjusting of MCU controller 3, the brightness of LED multi-path lamp 4 strengthens, and reaches the purpose of energy savings.
Described led drive circuit 2 includes PWM pulse-width modulation circuit group 21 and constant-current control circuit group 22, the input of described PWM pulse-width modulation circuit group 21 links to each other with the output of MCU controller 3, and the output of described constant-current control circuit group 22 links to each other with the input of LED multi-path lamp 4.After light-inductive device 5 sends signal to MCU controller 3,, produce pwm signal,, reach the purpose of regulating LED multi-path lamp 4 lamplight brightness by regulating the duty ratio of pwm signal by intellectual analysis.
Described PWM pulse-width modulation circuit 21 includes eight tunnel anti-phase buffer module U3, the U4 that the signal that MCU controller 3 sends can be transferred to ternary output.
Described constant-current control circuit group 22 includes constant flow module U7～U18.Constant-current control circuit can avoid the electric current of PWM pulse-width modulation circuit 21 to exceed maximum rating, influences the reliability of LED multi-path lamp 4.
Led drive circuit 2 utilizes single-chip microcomputer to produce pwm signal, drives LED multi-path lamp 4 and throws light on, by regulating the duty ratio of pwm signal, the brightness that just can transfer LED.
On described MCU controller 3, be connected with the fan circuit 7 of its heat that can leave fast.
Described MCU controller 3 is a MCU control chip.
Control the brightness of LED multi-path lamp 4 by the detection of light-inductive device 5, the intelligence computation of MCU controller, in a little less than the brightness of surround lighting, the brightness of LED multi-path lamp is turned up full blast, when the brightness of surround lighting is strong, the brightness of LED lamp is dimmed, thereby reach energy-conservation effect.
Claims (8)
1. the intelligent dimming device of a LED street lamp, include power circuit (1) and led drive circuit (2) that is connected with power circuit (1) and MCU controller (3), on led drive circuit (2), be connected with LED multi-path lamp (4), it is characterized in that on described MCU controller (3), also being connected with that the brightness that can detect surround lighting changes and send signal to MCU controller (3) to regulate the light-inductive device (5) of LED multi-path lamp (4) brightness.
2. the intelligent dimming device of a kind of LED street lamp according to claim 1 is characterized in that described light-inductive device (5) is two.
3. the intelligent dimming device of a kind of LED street lamp according to claim 1 and 2 is characterized in that described light-inductive device (5) includes photodiode (Q6, Q7).
4. the intelligent dimming device of a kind of LED street lamp according to claim 1, it is characterized in that described led drive circuit (2) includes PWM pulse-width modulation circuit group (21) and constant-current control circuit group (22), the input of described PWM pulse-width modulation circuit group (21) links to each other with the output of MCU controller (3), and the output of described constant-current control circuit group (22) links to each other with the input of LED multi-path lamp (4).
5. the intelligent dimming device of a kind of LED street lamp according to claim 4 is characterized in that described PWM pulse-width modulation circuit (21) includes the eight tunnel anti-phase buffer modules (U3, U4) that the signal that MCU controller (3) can be sent transfers ternary output to.
6. the intelligent dimming device of a kind of LED street lamp according to claim 4 is characterized in that described constant-current control circuit group (22) includes constant flow module (U7～U18).
7. the intelligent dimming device of a kind of LED street lamp according to claim 1 is characterized in that being connected with the fan circuit (7) of its heat that can leave fast on described MCU controller (3).
8. the intelligent dimming device of a kind of LED street lamp according to claim 1 is characterized in that described MCU controller (3) is a MCU control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102075757A CN102256420A (en) | 2011-07-23 | 2011-07-23 | Intelligent dimming device for LED (light-emitting diode) streetlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102075757A CN102256420A (en) | 2011-07-23 | 2011-07-23 | Intelligent dimming device for LED (light-emitting diode) streetlamp |
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| CN102256420A true CN102256420A (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102075757A Pending CN102256420A (en) | 2011-07-23 | 2011-07-23 | Intelligent dimming device for LED (light-emitting diode) streetlamp |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843819A (en) * | 2012-06-08 | 2012-12-26 | 上海大学 | Intelligent dimming device and method of LED (light-emitting diode) |
| CN103200741A (en) * | 2013-04-10 | 2013-07-10 | 武汉华炬光电有限公司 | Light emitting diode (LED) intelligent illuminating system based on environmental illumination self-adaption technology |
| CN103249212A (en) * | 2012-05-10 | 2013-08-14 | 湖北云川光电科技有限公司 | Intelligent constant current system for multi-modular LED street lamp |
| CN104270872A (en) * | 2014-10-23 | 2015-01-07 | 四川九洲光电科技股份有限公司 | Driving circuit for LED (light-emitting diode) railway signal lamp |
| CN106304516A (en) * | 2015-05-11 | 2017-01-04 | 深圳盛邦传奇科技有限公司 | A kind of control method according to environmental light brightness Intelligent adjustment LED brightness |
| CN107295720A (en) * | 2017-08-01 | 2017-10-24 | 深圳市莱福德光电有限公司 | Intelligent LED lamp light modulating device, system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201114909Y (en) * | 2007-09-11 | 2008-09-10 | 深圳市九洲光电子有限公司 | A LED street lamp brightness control device |
| CN101600275A (en) * | 2009-07-27 | 2009-12-09 | 裘麒龙 | A kind of operating circuit of LED street lamp |
| CN201623891U (en) * | 2010-01-26 | 2010-11-03 | 苏州市职业大学 | LED illumination automatic dimming circuit |
| CN202160310U (en) * | 2011-07-23 | 2012-03-07 | 李鸿 | Intelligent light modulation device for light modulation by LED street lamp according to ambient light |
-
2011
- 2011-07-23 CN CN2011102075757A patent/CN102256420A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201114909Y (en) * | 2007-09-11 | 2008-09-10 | 深圳市九洲光电子有限公司 | A LED street lamp brightness control device |
| CN101600275A (en) * | 2009-07-27 | 2009-12-09 | 裘麒龙 | A kind of operating circuit of LED street lamp |
| CN201623891U (en) * | 2010-01-26 | 2010-11-03 | 苏州市职业大学 | LED illumination automatic dimming circuit |
| CN202160310U (en) * | 2011-07-23 | 2012-03-07 | 李鸿 | Intelligent light modulation device for light modulation by LED street lamp according to ambient light |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249212A (en) * | 2012-05-10 | 2013-08-14 | 湖北云川光电科技有限公司 | Intelligent constant current system for multi-modular LED street lamp |
| CN102843819A (en) * | 2012-06-08 | 2012-12-26 | 上海大学 | Intelligent dimming device and method of LED (light-emitting diode) |
| CN103200741A (en) * | 2013-04-10 | 2013-07-10 | 武汉华炬光电有限公司 | Light emitting diode (LED) intelligent illuminating system based on environmental illumination self-adaption technology |
| CN104270872A (en) * | 2014-10-23 | 2015-01-07 | 四川九洲光电科技股份有限公司 | Driving circuit for LED (light-emitting diode) railway signal lamp |
| CN104270872B (en) * | 2014-10-23 | 2016-05-25 | 四川九洲光电科技股份有限公司 | Led railway signal lamp drive circuit |
| CN106304516A (en) * | 2015-05-11 | 2017-01-04 | 深圳盛邦传奇科技有限公司 | A kind of control method according to environmental light brightness Intelligent adjustment LED brightness |
| CN107295720A (en) * | 2017-08-01 | 2017-10-24 | 深圳市莱福德光电有限公司 | Intelligent LED lamp light modulating device, system and method |
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Application publication date: 20111123 |