3.automatic street light abstract
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This document describes a circuit that uses a light dependent resistor (LDR) sensor and comparator circuit to automatically turn street lights on at night and off in the morning. The circuit uses the output from the LDR sensor, which detects light levels, and a comparator to control a relay that switches the street lights on and off. It can also be used to automatically control electrical appliances in households based on light levels. Block and circuit diagrams are provided to illustrate how the system works along with a list of required hardware components.
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4. A conclusion that such smart solar street lighting systems are more efficient and environmentally friendly than traditional systems and have promising applications for the future.
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372269780-Ppt-Automatic-Street-Light.ppt
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Automatic street light circuit using ldr
This document describes an automatic street light circuit that uses an LDR (light dependent resistor) and comparator IC LM393. The LDR detects light levels and the LM393 comparator determines whether the street light should be on or off. When light falls on the LDR, it conducts and the street light stays off. When no light falls on the LDR, it does not conduct and the street light glows continuously until light is detected again. The circuit operates on a 5V DC supply and uses readily available, low-cost components like the LDR to detect light changes and automatically control the street light.
STREET LIGHT THAT GLOWS ON DETECTING VEHICLE MOVEMENT
This document describes a street light system that detects vehicle movement and automatically turns lights on and off to save energy. It uses a microcontroller, light dependent resistors as sensors, and a driver IC to control the street lights. When a vehicle is detected by the changing light levels sensed by the LDRs, the microcontroller turns on lights ahead of the vehicle. As the vehicle passes, the trailing lights are turned off. This allows energy to be saved by only illuminating the portion of the street currently in use. The system provides energy savings for street and highway lighting applications.
Mini-Project-1 Report
This document describes a student project to design and implement an automatic street light controller. It aims to save electricity by detecting vehicles and only turning street lights on fully when a vehicle is present. The project uses light dependent resistors, a power supply, relays, timers, and infrared sensors. It discusses the circuit designs and components in detail across multiple chapters. The conclusion states that automatic street lighting can significantly reduce energy consumption compared to manual control.
IRJET- Smart Street Lighting based on Pulse Width Modulation
This document describes a smart street lighting system that uses a switched capacitor-based DC-DC converter and automatic intensity control based on ambient light and vehicle movement to improve energy efficiency. The system uses a solar PV array to charge batteries and power LED street lights. An IR sensor detects vehicles and an LDR sensor controls light intensity based on ambient light. A microcontroller controls the converter duty cycle to produce minimum light intensity without vehicles and maximum intensity with vehicles detected, saving energy when full brightness is not needed. Simulations and a prototype were developed to test and verify the automatic intensity control and energy savings of the smart street lighting system.
Solar powered led street lighting
Solar Power Energy is a necessity for current time. We need to be aware with technology at all level. There is always a need to go for a substitute of electricity. Developing countries have to facilitate solar lights on road and provide a proper Research and Development sector for progress.
Ram minor project PPT..pptx
This document describes a street lighting system that uses infrared sensors and LEDs to save energy. IR sensors detect passing vehicles and signal microcontroller-controlled LEDs to increase intensity ahead on the road. This allows lights to operate at low intensity when no vehicles are present, saving energy compared to always-on streetlights. The system uses an ATmega8 microcontroller programmed to control LED intensity based on signals from IR sensors placed along the road.
GROUP NO. 17 MINI PROJECT.pptx
This document describes an automatic street light controller that uses a light dependent resistor (LDR) and IC 555 timer circuit to turn lights on and off without manual operation. The circuit consists of an LDR, resistor, LED, battery, breadboard, and IC 555 timer. When light falls on the LDR, its resistance decreases, increasing the voltage to the IC 555 timer. The timer then compares this voltage to a threshold and turns the LED on if the light level is low. This allows streetlights to automatically illuminate at night without the need for wiring or a power grid connection. The system is more eco-friendly and cost effective than conventional street lighting.
Wk102 ppt 1-
This document describes an intelligent automatic street light control system using a light dependent resistor (LDR). The system uses an LDR to sense light levels and automatically control street lights. When it gets dark, the high resistance of the LDR causes a relay to energize, which switches on the street lights. When it gets bright, the low resistance of the LDR prevents the relay from energizing, keeping the lights off. This automatic system eliminates the need for manual monitoring of street lights and saves energy by only powering them when it is dark. Applications include street lights, outdoor security lighting, and more.
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AUTOMATIC LIGHT CONTROL BY USING MICROCONTROLLER BASED LDR
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A voltage doubler circuit uses a 555 timer IC connected in astable mode to generate a square wave input voltage. This input is fed to a voltage doubler block which uses diodes and resistors to multiply and output a voltage that is approximately twice the value of the input voltage. The document provides an address, abstract, block diagram, and lists components required for the voltage doubler circuit.
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Embedded C programming is used to program microcontrollers that are found in many electronic devices. It involves writing code in the C language to control the functioning of embedded systems. Some key aspects of embedded C include using data types like char, int and float to store values in memory, keywords to perform specific tasks, and special function registers to access peripherals like ports and timers. The structure of an embedded C program typically involves comments, preprocessor directives, functions, variables and statements to read inputs, perform operations and output results.
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This document provides information about an organization called Pioneers in Embedded System Development & Training located in Vellore, India. It offers training in various embedded system domains such as real-time operating systems, electrical/renewable energy, biomedical, wireless technologies, Internet of Things, and more. It lists IEEE paper topics from 2015-2016 related to these domains that can be used for training. The organization contact details are also provided.
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3.automatic street light abstract
- 1. Fotronichs, #102 ginnumudaliar street virupackchipuram, vellore-632002,ph:9791899533 ABSTRACT This project aim is the street lights automatically turn ON in the night and turn OFF automatically at morning. The following circuit that described below which perform this job automatically. This circuit employed the output from an uncomplicated light/dark activated circuit and obliges a relay in its output which can be further attached to switch ON/OFF a street light and electrical application in a household also. BLOCK DIAGRAM POWER SUPPLY COMPARATOR LDR RELAY REFERENCE VOLTAGE LAMP CIRCUIT DIAGRAM
- 2. Fotronichs, #102 ginnumudaliar street virupackchipuram, vellore-632002,ph:9791899533 HARDWARE REQUIREMENTS 1. POWER SUPPLY 2. LDR SENSOR 3. LM324 COMPARATOR 4.6V RELAY 5. LAMP
- 3. Fotronichs, #102 ginnumudaliar street virupackchipuram, vellore-632002,ph:9791899533 Automatic street light control using LDR