Smart Highway Light System
An IoT-enabled Arduino system that controls street lights using IR and LDR sensors with real-time logic for energy-efficient highway illumination.
Problem Statement
Highway street lights running at full brightness throughout the night waste significant energy. A smart system that reacts to vehicle presence and ambient light conditions can dramatically reduce energy consumption while maintaining road safety.
Methodology
Designed an Arduino-based IoT system using IR sensors for vehicle detection and LDR sensors for ambient light measurement. Implemented real-time control logic that adjusts light intensity based on vehicle proximity and daylight conditions. Built and tested a physical prototype demonstrating the end-to-end system.
Results
The prototype successfully demonstrated automatic light control based on real-time sensor input, reducing simulated energy consumption by over 60% compared to always-on lighting. The modular sensor approach allows easy scaling to multi-lane highway installations.