MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202521113731 A) filed by Prof. Rahul Abhay Waikar; Prof. Sunil Satwaji Sable; Shreyans Ajay Jain; Harshal Bhaskar Ramteke; Bhavikesh Madhusudan Hedau; Shardul Ravindranath Hirolikar; and Himanshu Sanghsen Khobragade, Pune, Maharashtra, on Nov. 19, 2025, for 'smart retrofit fan control system with fuzzy logic-based adaptive control, user preference learning, and predictive cooling algorithm.'
Inventor(s) include Prof. Rahul Abhay Waikar; Prof. Sunil Satwaji Sable; Shreyans Ajay Jain; Harshal Bhaskar Ramteke; Bhavikesh Madhusudan Hedau; Shardul Ravindranath Hirolikar; and Himanshu Sanghsen Khobragade.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "This invention presents a retrofit smart fan control system integrating fuzzy logic-based adaptive control, user preference learning, and predictive cooling algorithms for intelligent climate management. The system comprises an ESP32 microcontroller with integrated Bluetooth Low Energy (BLE), a DHT22 temperature-humidity sensor, an MG996R servo motor for mechanical actuation, and a smartphone application for user interface. A fuzzy inference engine processes environmental data as linguistic variables through 15 inference rules, computing a continuous comfort index that eliminates abrupt speed transitions characteristic of threshold-based systems. An automated machine learning module monitors user manual changes through the Skype app, recording out on top of environmental context and building a customized comfort, locally stored models based on weighted moving averages, k-nearest neighbors, and naive Bayes classification, without cloud reliance on the ESP32. A predictive cooling algorithm examines the trends of temperatures by analyzing, time-series regression on a 30 sample sliding window, predicts the thermal conditions 5-15 minutes in advance, and preemptively sets the fan speed before the discomfort sets in. The miniature shipment can be attached straight on to the current, fan regulator knobs through mechanical connection and connects to power with a standard 2-pin plug, which needs, no switchboard alteration, wire cutting or electrical knowledge. It takes a quick installation time of less than 5 minutes, and can be used compatibility to any normal Indian ceiling fan (220-240 V AC, 50Hz, capacitor-based), regulators). Data processing and storage are done on the ESP32 microcontroller locally and hence fully, user privacy."
Disclaimer: Curated by HT Syndication.
