Smart Personal Safety Band for Children Using GPS–GSM Technology and SOS Alert System

Personal safety has become a major concern for school-going children in light of the heightened rates of missing children, travel dangers, and communication barriers in case of emergencies. This paper has designed and developed a Smart Personal Safety Band, a wearable, independent personal safety device utilizing GPS-GSM that offers real-time emergency alerts. The proposed system is implemented with Arduino Nano, NEO-6M GPS module, SIM800L GSM module, and an SOS button, which instantly sends the location of the child to predefined contacts through SMS. This has been implemented on a compact, low-cost, user-friendly device that does not require a smartphone or internet. Testing shows accurate GPS tracking, robust GSM communication, and quick response times for sending alerts. The system is thus suitable for the safety of school children and other vulnerable groups. The future work will include IoT incorporation, geofencing, fall detection, and mobile app support.