Authors : Gopala Krishna Murthy M.; Vasanti Lakshmi Priya N.; Sreeja G.; Venkata Sai Abhiram Reddy M.; Keerthi Yugasri R.; Sai Muthyam K.; Mohammad Umar S. k.

Volume/Issue : Volume 11 - 2026, Issue 3 - March

Google Scholar : https://tinyurl.com/bde743r6

Scribd : https://tinyurl.com/yc2y9ptf

DOI : https://doi.org/10.38124/ijisrt/26mar1493

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : In emergency situations where individuals are unconscious or unable to communicate, timely medical intervention is often delayed due to the lack of accessible personal and medical information. Existing emergency systems largely depend on active user interaction, internet connectivity, or paid third-party services, making them unreliable in real-world scenarios such as accidents or rural environments. To address these limitations, ResQR – Emergency Guardian Alert System is proposed as a privacy-first, full-stack emergency alert platform that leverages QR code–based triggering and SMS automation to enable rapid guardian notification without requiring internet access. Each user is assigned a unique QR code that can be scanned by a passerby, triggering an automated SMS-based alert workflow. The system integrates a React-based frontend, a Spring Boot backend, MongoDB for secure data storage, and an Android SMS Listener application operating with a real SIM card to dispatch alerts until guardian acknowledgment. Controlled medical data access, audit logging, and grievance redressal mechanisms ensure privacy and misuse prevention. By operating on free-tier, open-source infrastructure, ResQR offers a scalable, cost-effective, and reliable solution for realworld emergency response systems.

Keywords : Emergency Response System, QR Code, SMS Alert, Offline Communication, Guardian Notification, Privacy- Preserving Systems, Spring Boot, MongoDB, Android Application.

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