Abstract

COVID-19 is a global pandemic that significantly affected public health. Quarantine facilities could effectively reduce the number of people infected. However, cases of breach in quarantine and limited function of health workers made it difficult to manage security and safety of facilities. A Wireless-Sensor-Network-based fire safety and security monitoring system was developed to provide early warnings of fire and quarantine breach through a mobile application using Internet of Things. The system consists of DHT11, YG1006, and HC-SR501 PIR sensors, and an electronic door lock, all interfaced in Raspberry Pi. The mobile application notifies when temperature above 40°C and presence of flame were detected, and when no indoor movement was detected. Door lock was remotely controlled and monitored through Wi-Fi. Different scenarios were recorded for testing. Results showed that accuracy of sensing temperature and humidity, flame, and motion was 92%, 98%, and 96%, respectively, and accuracy of lock control was 98%.

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