CN104661359A - Novel self-adaptive dimming system for LED (Light Emitting Diode) street lamp - Google Patents
Novel self-adaptive dimming system for LED (Light Emitting Diode) street lamp Download PDFInfo
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- CN104661359A CN104661359A CN201310578039.7A CN201310578039A CN104661359A CN 104661359 A CN104661359 A CN 104661359A CN 201310578039 A CN201310578039 A CN 201310578039A CN 104661359 A CN104661359 A CN 104661359A
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- street lamp
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- width modulation
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Abstract
The invention relates to a novel self-adaptive dimming system for an LED (Light Emitting Diode) street lamp. The novel self-adaptive dimming system mainly comprises a DSP (Digital Signal Processor), an illumination setting module, an environmental illumination detection circuit, an infrared sensor, a transformer, a rectifier filter module, a pulse width modulation module and the LED street lamp, wherein the illumination setting module is connected to the environmental illumination detection circuit, the infrared sensor is connected to the DSP processor, and the environmental illumination detection circuit is connected to the DSP processor; the DSP processor is connected to the pulse width modulation module, the transformer is connected to the rectifier filter module, the rectifier filter module is connected to the pulse width modulation module, and the pulse width modulation module is connected to the LED street lamp. The novel self-adaptive dimming system adopts the environmental illumination detection circuit to detect the real-time brightness of the current external environment and adopts the pulse width modulation manner to modulate the current LED brightness, so that the brightness of the LED lamp is automatically adjusted.
Description
Technical field
The present invention relates to a kind of LED street lamp illumination light adjusting system field, particularly relate to a kind of Novel LED street lamp self adaptation light adjusting system.
Background technology
In early days, due to aspects such as photochromic, luminous efficiency, luminous flux and prices, LED mainly applies instruction, display field, as being used as indicator light, alarm light and display board etc.Along with enriching constantly of LED light look, the particularly continuous maturation of White light LED technology, luminous efficiency improves constantly, and price reduces gradually, high-power highlighted LED has 1W, 3W, 5W equal-specification commercially to sell, and the developmental research that wherein power is greater than the white light LEDs of 1W becomes main direction.Application due to large power white light LED receives extensive concern in the world, therefore the drive circuit design industry of large power white light LED becomes focus, drive circuit many employings constant current drive mode of great power LED, constant current driver circuit for LED has the multiple type of drive such as charge pump, BUCK, Boost, charge pump, BUCK, BOOST are in fact all voltage output types, realize exporting constant current by Current Feedback Control Circuit.
Summary of the invention
For prior art Problems existing, the object of this invention is to provide a kind of Novel LED street lamp self adaptation light adjusting system, mainly be made up of dsp processor, illuminance setting module, ambient light illumination testing circuit, infrared sensor, transformer, rectification filtering module, Pulse width modulation module and LED street lamp, described illuminance setting module is connected with ambient light illumination testing circuit, described infrared sensor is connected with dsp processor, and described ambient light illumination testing circuit is connected with described dsp processor; Described dsp processor is connected with described pulse width modulation, and described transformer is connected with rectifying and wave-filtering, and described rectifying and wave-filtering is connected with pulse width modulation, and described pulse width modulation is connected with described LED street lamp.
Further, described a kind of Novel LED street lamp self adaptation light adjusting system, it is characterized in that described dsp processor selects the TMS320LF2407A of Texas Instruments company, described luminance detection chip selects TSL2561.
The present invention compared with prior art has the following advantages:
1. the present invention is reasonable in design, structure simple and circuit part line is simple;
2. native system adopts ambient light illumination to detect the real-time luminosity of environment nowadays, adopts the mode of pulse width modulation to modulate current LED luminance, to reach the brightness of automatic Modulation LED,
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Embodiment
With reference in Fig. 1, the technical solution used in the present invention is a kind of Novel LED street lamp self adaptation light adjusting system, it is characterized in that mainly by dsp processor, illuminance setting module, ambient light illumination testing circuit, infrared sensor, transformer, rectification filtering module, Pulse width modulation module and LED street lamp, described illuminance setting module is connected with ambient light illumination testing circuit, described infrared sensor is connected with dsp processor, and described ambient light illumination testing circuit is connected with described dsp processor.
Further, described a kind of Novel LED street lamp self adaptation light adjusting system, it is characterized in that described dsp processor is connected with described pulse width modulation, described transformer is connected with rectifying and wave-filtering, and described pulse width modulation is connected with described LED street lamp.
Further, described a kind of Novel LED street lamp self adaptation light adjusting system, it is characterized in that described dsp processor selects the TMS320LF2407A of Texas Instruments company, described luminance detection chip selects TSL2561.
The above; only embodiments of the invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection range of technical solution of the present invention.
Claims (2)
1. a Novel LED street lamp self adaptation light adjusting system, it is characterized in that: be mainly made up of dsp processor, illuminance setting module, ambient light illumination testing circuit, infrared sensor, transformer, rectification filtering module, Pulse width modulation module and LED street lamp, described illuminance setting module is connected with ambient light illumination testing circuit, described infrared sensor is connected with dsp processor, and described ambient light illumination testing circuit is connected with described dsp processor; Described dsp processor is connected with described pulse width modulation, and described transformer is connected with rectifying and wave-filtering, and described rectifying and wave-filtering is connected with pulse width modulation, and described pulse width modulation is connected with described LED street lamp.
2. a kind of Novel LED street lamp self adaptation light adjusting system as claimed in claim 1, it is characterized in that: described dsp processor selects the TMS320LF2407A of Texas Instruments company, described luminance detection chip selects TSL2561.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578039.7A CN104661359A (en) | 2013-11-15 | 2013-11-15 | Novel self-adaptive dimming system for LED (Light Emitting Diode) street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578039.7A CN104661359A (en) | 2013-11-15 | 2013-11-15 | Novel self-adaptive dimming system for LED (Light Emitting Diode) street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104661359A true CN104661359A (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310578039.7A Pending CN104661359A (en) | 2013-11-15 | 2013-11-15 | Novel self-adaptive dimming system for LED (Light Emitting Diode) street lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN104661359A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042350A (en) * | 2015-09-07 | 2015-11-11 | 江苏达伦电子股份有限公司 | LED head lamp capable of automatically adjusting illumination |
| CN105050277A (en) * | 2015-08-07 | 2015-11-11 | 苏州晶雷光电照明科技有限公司 | Intelligent lighting device |
| CN106162984A (en) * | 2016-06-23 | 2016-11-23 | 浙江大学 | Double optical sensor led street lamp control system |
-
2013
- 2013-11-15 CN CN201310578039.7A patent/CN104661359A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105050277A (en) * | 2015-08-07 | 2015-11-11 | 苏州晶雷光电照明科技有限公司 | Intelligent lighting device |
| CN105042350A (en) * | 2015-09-07 | 2015-11-11 | 江苏达伦电子股份有限公司 | LED head lamp capable of automatically adjusting illumination |
| CN106162984A (en) * | 2016-06-23 | 2016-11-23 | 浙江大学 | Double optical sensor led street lamp control system |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |
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| WD01 | Invention patent application deemed withdrawn after publication |