CN106304516A - A kind of control method according to environmental light brightness Intelligent adjustment LED brightness - Google Patents
A kind of control method according to environmental light brightness Intelligent adjustment LED brightness Download PDFInfo
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- CN106304516A CN106304516A CN201510235028.8A CN201510235028A CN106304516A CN 106304516 A CN106304516 A CN 106304516A CN 201510235028 A CN201510235028 A CN 201510235028A CN 106304516 A CN106304516 A CN 106304516A
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- circuit
- brightness
- control circuit
- environmental light
- pwm
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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
Abstract
The present invention is open a kind of according to environmental light brightness intelligent dimming LED control circuit, it is characterized in that including: environmental light brightness testing circuit, MCU drive control circuit, PWM to drive light adjusting circuit, power circuit, the invention has the beneficial effects as follows: 1, according to the change of ambient light, the brightness of Intelligent adjustment LED, reaches energy saving；2, this circuit methods light modulation precision is high, it is possible to realizing multistage light modulation, several scenes identifies automatically；3, the application of this circuit methods is simple, can quickly be applied in existing product, shortens the construction cycle, cost-effective.
Description
Technical field
The present invention relates to a kind of control method, a kind of control method according to environmental light brightness Intelligent adjustment LED brightness.
Background technology
At the society that global energy crisis shows especially; LED illumination is with its environmental protection; energy-efficient advantage becomes one of the most most potential lighting system; LED is known as " the forth generation light source of green illumination "; have started at present progressively be applied to the fields such as telecommunications, traffic, agricultural, medical science, military affairs; but current LED controls technology and there is also following shortcoming: the most traditional LED street lamp is to open in wink to close in wink; the most do not possess the brightness according to ambient light and carry out Intelligent adjustment LED brightness; waste ample resources, not energy-conserving and environment-protective；2, existing brightness regulation scheme is analog data acquisition, it is impossible to the light that shielding LED self sends, the regulation low dimming effect of control accuracy is poor, therefore needs to be improved.
Summary of the invention
It is an object of the invention to provide a kind of can be according to the control method of environmental light brightness Intelligent adjustment LED brightness, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of according to environmental light brightness intelligent dimming LED control circuit, it is characterized in that including: environmental light brightness testing circuit, MCU drive control circuit, PWM to drive light adjusting circuit, power circuit, wherein said power circuit drives control circuit to provide DC voltage for environmental light brightness testing circuit and MCU；Environmental light brightness testing circuit is according to the change of ambient light, collect different data, be delivered to MCU and drive control circuit, after MCU drives control circuit will receive Data Analysis Services, export a control signal and drive light adjusting circuit to PWM, thus regulate the brightness of LED.
Preferred version as the present invention: described environmental light brightness testing circuit also comprises digital environment optical sensor；Preferred version as the present invention: described MCU drives control circuit to it is characterized in that comprising a MCU controller；Preferred version as the present invention: described PWM drives light adjusting circuit to comprise PWM circuit and LED string constant-current control circuit, the PWM input of PWM circuit drives control circuit PWM outfan to be connected with MCU, and the outfan of described LED string constant-current control circuit is connected with LED string input.
Compared with prior art, the invention has the beneficial effects as follows: 1, according to the change of ambient light, the brightness of Intelligent adjustment LED, reach energy saving；2, this circuit methods light modulation precision is high, it is possible to realizing multistage light modulation, several scenes identifies automatically；3, the application of this circuit methods is simple, can quickly be applied in existing product, shortens the construction cycle, cost-effective.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the control method according to environmental light brightness Intelligent adjustment LED brightness.
Fig. 2 is LED power table corresponding with environmental light intensity.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention; technical scheme in the embodiment of the present invention is clearly and completely described; obviously; described embodiment is only a part of embodiment of the present invention; rather than whole embodiments; based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1, a kind of according to environmental light brightness intelligent dimming LED control circuit, it is characterized in that including: environmental light brightness testing circuit 1, MCU drive control circuit 2, PWM to drive light adjusting circuit 3, power circuit 4, wherein said power circuit 4 drives control circuit 2 to provide DC voltage for environmental light brightness testing circuit 1 and MCU；Environmental light brightness testing circuit 1 is according to the change of ambient light, collect different data, be delivered to MCU and drive control circuit 2, after MCU drives control circuit 2 will receive Data Analysis Services, export a control signal and drive light adjusting circuit 3 to PWM, thus regulate the brightness of LED.
Environmental light brightness testing circuit 1 also comprises digital environment optical sensor.
MCU drives control circuit 2 to it is characterized in that comprising a MCU controller.
PWM drives light adjusting circuit 3 to comprise PWM circuit and LED string constant-current control circuit, the PWM input of PWM circuit drives the PWM outfan of control circuit 2 to be connected with MCU, and the outfan of described LED string constant-current control circuit is connected with LED string input.
The operation principle of the present invention is: circuit detects environmental light intensity by environmental light brightness testing circuit, and export the signal changed with environmental light intensity change and drive control circuit to MCU, after MCU drives control circuit will receive signal analysis and processing, export a control signal and drive light adjusting circuit to PWM, PWM drives the LED string constant-current control circuit within light adjusting circuit to control the brightness of LED according to the signal received, and concrete function is: 1.PWM is output as 200Hz ~ 350Hz；2. high-high brightness 80%；3. (80%) 1 second Hou of all light after switching on and shutting down, starts to detect ambient light and dims；The most each section of PWM exporting change & detects the ambient light time, needs to complete for 10 seconds, totally five sections 50 seconds (hop count change needs regulation)；5. during detecting, every 1 second 1 document (8 times are average), within 10/10 seconds, all detect establishment, one section of operation can be cut, LED power as in figure 2 it is shown, the LED using this circuit to make compares current similar design, saves electric energy 75% with environmental light intensity correspondence table.
Claims (4)
1. one kind according to environmental light brightness intelligent dimming LED control circuit, it is characterized in that including: environmental light brightness testing circuit (1), MCU drive control circuit (2), PWM to drive light adjusting circuit (3), power circuit (4), wherein said power circuit (4) is environmental light brightness testing circuit (1) and MCU driving control circuit (2) offer DC voltage；Environmental light brightness testing circuit (1) is according to the change of ambient light, collect different data, it is delivered to MCU and drives control circuit (2), after MCU drives control circuit (2) will receive Data Analysis Services, export a control signal and drive light adjusting circuit (3) to PWM, thus regulate the brightness of LED.
A kind of control method according to environmental light brightness Intelligent adjustment LED brightness the most according to claim 1, it is characterised in that described environmental light brightness testing circuit (1) also comprises digital environment optical sensor.
A kind of control method according to environmental light brightness Intelligent adjustment LED brightness the most according to claim 1, it is characterised in that described MCU drives control circuit (2) to it is characterized in that comprising a MCU controller.
A kind of control method according to environmental light brightness Intelligent adjustment LED brightness the most according to claim 1, it is characterized in that, described PWM drives light adjusting circuit (3) to comprise PWM circuit and LED string constant-current control circuit, the PWM input of PWM circuit drives control circuit (2) PWM outfan to be connected with MCU, and the outfan of described LED string constant-current control circuit is connected with LED string input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510235028.8A CN106304516A (en) | 2015-05-11 | 2015-05-11 | A kind of control method according to environmental light brightness Intelligent adjustment LED brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510235028.8A CN106304516A (en) | 2015-05-11 | 2015-05-11 | A kind of control method according to environmental light brightness Intelligent adjustment LED brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106304516A true CN106304516A (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510235028.8A Pending CN106304516A (en) | 2015-05-11 | 2015-05-11 | A kind of control method according to environmental light brightness Intelligent adjustment LED brightness |
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| CN (1) | CN106304516A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071997A (en) * | 2017-03-01 | 2017-08-18 | 上海瑞华(集团)有限公司 | A kind of radio scenery lamp integrated control device |
| CN109511205A (en) * | 2018-12-27 | 2019-03-22 | 宁波英泰克照明有限公司 | A kind of control method of solar energy intelligent road-lamp |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256420A (en) * | 2011-07-23 | 2011-11-23 | 李鸿 | Intelligent dimming device for LED (light-emitting diode) streetlamp |
-
2015
- 2015-05-11 CN CN201510235028.8A patent/CN106304516A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256420A (en) * | 2011-07-23 | 2011-11-23 | 李鸿 | Intelligent dimming device for LED (light-emitting diode) streetlamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071997A (en) * | 2017-03-01 | 2017-08-18 | 上海瑞华(集团)有限公司 | A kind of radio scenery lamp integrated control device |
| CN109511205A (en) * | 2018-12-27 | 2019-03-22 | 宁波英泰克照明有限公司 | A kind of control method of solar energy intelligent road-lamp |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |