RAKSHAK: A Blockchain-Integrated Smart Belt for Trusted Emergency Response and Secure Real-Time Safety Communication

The RAKSHAK Smart Belt is a wearable device that uses IoT (Internet of Things) and blockchain technology to help people in high-risk situations, like women, kids, older adults, and military personnel. It has GPS, GSM/GPRS, an ESP32 microcontroller, a small camera, encryption tools, and a secure blockchain record to make sure alerts are real and verified during emergencies. Personal safety remains a big issue, especially in today’s fast-moving and uncertain world, particularly for those in remote or dangerous areas. This study introduces a smart safety belt that can send out distress signals and share live location data quickly. The system allows users to connect with trusted people either by themselves or through approved remote access, making sure they get help fast without making things harder during a crisis. The solution is built with reliability, ease of use, and practicality in mind, and it can be used for both military and everyday safety needs. Experimental evaluation of the prototype showed an average SOS alert latency of 4.1s and a GPS positioning error within 6m, demonstrating the practical feasibility of the proposed design. The research demonstrates that intelligently designed wearable systems can deliver a scalable, unobtrusive, and effective personal security framework, contributing to a more responsive and trustworthy safety infrastructure.