GSM-Based Smart Security and Monitoring System for Residential Applications

Abstract

Residential security systems increasingly combine embedded sensing, mobile communication, and automated alerting to provide continuous protection when occupants are away from home. This methodology paper proposes a GSM-based smart security and monitoring architecture in which passive infrared motion, door-contact, smoke/gas, and temperature sensors are integrated with an Arduino-class microcontroller and a GSM modem. The controller evaluates sensor events, activates a local alarm, and transmits event-specific Short Message Service (SMS) notifications to an authorized mobile number. The methodology emphasizes low cost, stand-alone operation, cellular coverage, simple authentication, and measurable performance indicators such as detection accuracy, false-alarm rate, SMS delivery latency, and recovery after power or network interruption. A structured prototype-validation procedure is defined for intrusion, fire/smoke, gas leakage, and abnormal-temperature scenarios. The proposed approach is grounded in GSM/GPRS and smart-home security studies published up to 2019. The resulting framework is suitable for residential applications where reliable remote notification is required without continuous dependence on broadband Internet connectivity.