MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202631077489 A) filed by National Institute Of Technology Jamshedpur on June 23, 2026, for An Affordable Smart Router Adapter For Reliable Internet Access In Rural Communities.
Inventors include Ajit Kumar Singh; Tarak Nath Mahato; Kamal Kant; and Om Hari Gupta.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: AN AFFORDABLE SMART ROUTER ADAPTER FOR RELIABLE INTERNET ACCESS IN RURAL COMMUNITIES The invention relates to a low-cost smart Wi-Fi router adapter designed to provide uninterrupted internet connectivity in rural and remote areas affected by frequent power outages. The adapter comprises an AC-DC adapter for converting mains supply (230 V, 50 Hz) into 12 V DC, a rechargeable Li-Ion battery (11.1 V, 6000 mAh) connected through a battery management system (BMS), and a bidirectional converter (BDC) configured to operate in buck mode during charging and boost mode during discharging. A switching regulator (XL6009) ensures a constant regulated output of 12 V to the router under varying operating conditions. The BMS monitors charging, discharging, and protection functions, while sensing circuits including a voltage divider and ACS712 current sensor measure battery voltage and current. An Arduino Uno microcontroller processes these signals and executes state-of-charge (SOC) estimation using two methods: a Kalman filter-based approach and a rate-limited voltage-based approach. The system is validated through MATLAB simulation and hardware testing, demonstrating stable operation, accurate SOC estimation, and reliable backup capability of up to 6 hours depending on router load. The adapter is compact, portable, and cost-effective, with a manufacturing cost significantly lower than existing commercial router backup systems, making it suitable for rural deployment and enhancing digital connectivity.
Disclaimer: Curated by HT Syndication.
