What is automatic street light project?

Automatic street light system is a simple concept which uses transistor as a switch. By this system manual works are completely removed . It automatically switches on lights when the light goes below ambient light . This is done using LDR which senses the light.

How do you make an automatic street light project?

How to Make Automatic Street Light

Step 1: Take All Components As Shown Below. 3 More Images.
Step 2: Pins of BC547 Transistor.
Step 3: Connect LED.
Step 4: Solder LDR.
Step 5: Connect 20K Resistor.
Step 6: Solder Battery Clipper Wire.
Step 7: How to Use This Automatic Street Light.

How do automatic street lights work?

When lots of light falls on a CdS cell, then the resistance is very low, which means it conducts electricity well. When it gets dark, then not much current can flow to the electromagnet so the switch closes and allows electricity to flow to the streetlight, turning it on.

What is the purpose of automatic street light?

The main aim behind making an automatic street light is to save the power. As the light turns ON & OFF according to the requirement it saves the power & also decreases our work.

What is automatic night light?

Automatic night light control system needs no manual operation for switching ON and OFF when there is need of light. When darkness rises to a certain value then automatically light is switched ON and when there is other source of light i.e. day time, the light gets OFF.

How does an LDR work?

Working Principle of LDR. These devices depend on the light, when light falls on the LDR then the resistance decreases, and increases in the dark. When a LDR is kept in the dark place, its resistance is high and, when the LDR is kept in the light its resistance will decrease.

Which sensor is used in automatic street light?

Generally, street light controlling system is a simple concept which uses a transistor to turn ON in the night time and turn OFF during the day time. The entire process can be done by a using a sensor namely LDR (light dependent resistor).

What is used for automatic controlling street mains in case of street lighting?

This is done by a sensor called Light Dependent Resistor (LDR) which senses the light actually like our eyes. It automatically switches OFF lights whenever the sunlight comes, visible to our eyes. Aim of this project is to control the street light using LDR.

What do you mean by LDR?

Informal. long-distance relationship: a relationship, typically a romantic one, in which the two people live far enough apart that they cannot see each other often: My boyfriend and I had an LDR for two years.

Which is a conclusion of automatic street lights?

CONCLUSION In coming days, this will prove a great boon to the country, since it will save lot of electricity of power plant that gets wasted in illuminating the street lights. As a conclusion, around 77%-81% of power consumption can be reduced By using this system towards providing a solution for energy saving

What are the components of a street light?

MAIN COMPONENTS  TRANSISTOR BC547  LDR (LIGHT DEPENDENCE RESISTOR)  RESISTOR  LED  BATTERY  PCB BOARD 6. THE COMPONENTS TRANSISTOR BC547ABOUT  Has an emitter terminal, a base terminal and a collector terminal current flowing from the base to the emitter controls the collector current 7.

What is a base street light control 11?

RESISTOR April 18, 2017 LDR BASE STREET LIGHT CONTROL 11 o It is a passive component having two terminals that are used to mange the current flow in the circuit. o A current that flows via a resistor is directly proportional to the voltage that appeared into resistor o Two types: (1) Fixed value resistor (2) Variable resistor 12.