PDF] SOLAR POWERED LED STREET LIGHT WITH AUTO INTENSITY CONTROL
The System is designed for LED based street lights with an auto intensity control that uses solar power from photovoltaic cells. Photovoltaic panels are used for charging batteries by converting the sunlight into electricity. It is interfaced with LDR for precise switching operation. The Intensity of street lights is required to be kept high during the peak hours. As the traffic on the roads tends to decrease slowly in late nights, the intensity can be reduced progressively till morning to save energy. Thus, the street lights switch ON at the dusk and then switch OFF at the dawn automatically. The process repeats every day.Light Emitting Diode (LED) can replace the High Intensity Discharge (HID) lamps where intensity control is possible by Pulse Width Modulation. A programmable Microcontroller Atmega328P of Arduino is engaged to provide different intensities at the different times of night using PWM technique for saving the energy.
Solar powered led street light with auto intensity control
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Solar Powered LED Street Light with Auto Intensity Control
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Solar powered led street light with auto intensity control