Observed arrival · 2026-09-07
Chain-Flag Makes an Anchor Chain Legible
A marine-mooring system combines a physical length marker, an Android onboard tracker, and a planned remote-monitoring service.
Field notes
The system combines a physical flag with onboard phone monitoring. Flags measure about 50 × 40 cm and print the deployed chain length in metres on one side and feet on the other, while the planned Android Tracker uses a SIM-equipped phone left aboard. The site describes local zone monitoring that can continue without internet access and with very low mobile-data use. The remote Gardien component, intended to expose position and alerts from shore, remains in preparation.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue