WiNDAS: Wireless Natural Disaster Alert System

Weather condition and alarm notification systems with GSM applications play a crucial and effective lifesaving role, especially in calamity-prone and remote Camarines Sur communities. Since most residents are more inclined to mobile phone communication, the system has utilized the SMS transmission of real-time information using the Android app to the residents enabling them to be ready and prepare for any incoming natural disasters such as typhoons, flooding, and even landslides. This study aims to design a wireless network disaster alert system and its effectiveness in terms of output values and overall system response. The study incorporated developmental research that includes planning, designing, developing, testing, and evaluating the project. The system is composed of an RF transmitter and receiver and several sensing components like ultrasonic sensor, flex sensor, temperature probe, rain gauge sensor, and anemometer, which Arduino Uno controls. Likewise, it runs on solar power to ensure no interruption when the main power line is terminated. The system undergoes a series of onsite trials and experiments to determine the level of the system's effectiveness in terms of functionality and efficiency. The system incorporates and uses simultaneously controlled variables such as varying water levels, simulating ground shakes, setting different temperatures, and applying several wind forces levels. The overall performance is interpreted as highly efficient, with a 95.5% rating in sending real-time weather updates and alarms in the event or occurrence of natural disasters.