Facial and Geofencing-Based Attendance Tracking System for Deployed Personnel
J. R. González Fernández, Hanzel Mamarungkas, S. Bradleigh Vinson, Kyle Atuel · Mindanao Journal of Science and Technology · 2025
This study explored developing and deploying a facial and geofencing-based attendance tracking system designed for the Cagayan de Oro City Police Office (COCPO), Philippines. Its main goal was to improve the accuracy of patrol tracking and officer accountability. The system, built with Python, combined facial recognition with GPS/Location-Based Services (LBS) and the Haversine formula for precise geofence validation to automate attendance tracking through a mobile app and web dashboard. Officers authenticated themselves by facial recognition on smartphones and had to take a real-time selfie only after confirming their presence within a designated patrol zone via geofence validation. Usability testing with COCPO officers showed a facial recognition accuracy of 99% under optimal conditions, a geofencing accuracy of 92.18% in open areas (dropping to 71.33% in urban environments), and a System Usability Scale (SUS) score of 85.56. The results demonstrated that the system greatly enhanced accountability and transparency, resolving issues associated with manual record-keeping. This research offers a validated dual-authentication framework for law enforcement, showcasing its potential scalability for public safety uses.