28-03-2012, 02:47 PM
Intelligent Automatic Street Light Control System using high sensitivity LDR
intelligent-automatic-street-light-control-system-using-high-sensitivity-ldr.doc (Size: 31 KB / Downloads: 275)
Automatic Street Light Control System is a simple yet powerful concept, which uses transistor as a switch. By using this system manual works are 100% removed. It automatically switches ON lights when the sunlight goes below the visible region of our eyes. This is done by a sensor called Light Dependant Resistor (LDR) which senses the light actually like our eyes. It automatically switches OFF lights whenever the sunlight comes, visible to our eyes.
By using this system energy consumption is also reduced because nowadays the manually operated street lights are not switched off even the sunlight comes and also switched on earlier before sunset. In this project, no need of manual operation like ON time and OFF time setting.
Advantages:
Highly sensitive
Works according to the light intensity
Fit and Forget system
Low cost and reliable circuit
Complete elimination of manpower
Can handle heavy loads up to 7A
System can be switched into manual mode whenever required
Applications:
Balcony / stair case / parking Lightings
Street lights
Garden Lights