MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202641122828 A) filed by Vishnu Institute Of Technology on October 14, 2026, for Smart Fuzzy-Controlled Air Purification And Ventilation System For Indoor Environments.
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 fuzzy-controlled air purification and ventilation system (100) comprises an MQ-135 air quality sensor (102), a DHT-11 temperature and humidity sensor (104), an MQ-2 gas sensor (106), and a microcontroller (108) such as an Arduino UNO. The microcontroller compensates the air quality reading for temperature and humidity against a calibrated clean-air baseline, and a fuzzy controller (112) fuzzifies the compensated air quality, temperature and humidity, applies min-max rules and centroid defuzzification to set the PWM speed of a ventilation fan (124). A purifier fan (128) with a HEPA filter (130) is switched on and off with hysteresis and a minimum run time. When the MQ-2 detects LPG above a threshold for consecutive samples, a buzzer sounds, SMS alerts are sent through a GSM module (132) and the fan exhausts the room at full speed, while relay contacts are not switched.
Disclaimer: Curated by HT Syndication.
