The core mechanism of a Guard Tour System involves a series of strategically placed checkpoints throughout the patrol route. These checkpoints are usually marked by NFC/RFID tags, QR codes, or iBeacons. As a guard progresses along their route, they use a handheld device (which can be a dedicated patrol reader, a ruggedized smartphone, or a tablet) to scan or interact with each checkpo... https://guardworkforce.com.sg/guard-tour-systems-in-singapore/