MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202641122826 A) filed by Vishnu Institute Of Technology on October 14, 2026, for Smart Adaptive Street Lighting System Using Pir And Ldr Sensors With Arduino-Based Control.
Inventor includes Mr. Ch. Venkateswara Rao.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: A smart adaptive street lighting system (100) has, at each lamp post, an LDR (104) in a voltage divider and a PIR sensor (108) connected to a microcontroller (110), such as an Arduino UNO, which drives an LED luminaire (114) through a PWM-controlled LED driver (112). The microcontroller enters the night state only when the LDR reading has stayed below a dark threshold for a confirmation period, and the day state only when it has stayed above a higher bright threshold for that period, so that dusk fluctuation, vehicle headlights and the lamp's own light do not change the state. By day the light stays off regardless of motion. At night, each PIR detection drives the light to full brightness and restarts a hold timer; when the timer expires the light returns to a reduced standby level or off. Lamp posts may wake the posts ahead by wireless messages.
Disclaimer: Curated by HT Syndication.
