How the Pelagic Vessel Tracking System Works

Comparison of Vessel Tracking System Classes

Automatic Identification Systems (AIS) Vessel Monitoring Systems (VMS) Pelagic Data's Vessel Tracking System (VTS)
Primary Use Helping ships avoid collisions and assisting port authorities in better monitoring maritime traffic Monitoring specifically for commercial fishing vessels that is designed for regulatory bodies to track and manage fishing activities Autonomous tracking of vessels of any size, including those not large enough to be well-suited for AIS or VMS systems
Vessel Size Class International voyaging ships with gross tonnage (GT) of 300 or more, any passenger ship regardless of size, and US fishing vessels Varies by location (e.g., USA requires it on any commercial fishing vessel; the EU requires it on any fishing vessel larger than 12m (40ft)) Appropriate for vessels of any size, including those without a power source
Tracking Interval Broadcasts position in real-time (typically every few seconds) to avoid collisions Typically sends a position reading once per hour Records positions every few seconds, it can also store years' worth of data directly onboard
Power Requirements Requires power supply Requires power supply, or batteries to be recharged regularly Completely power-independent using a solar energy
Data Communication Method Primarily VHF radio but can be supplemented by satellite communication methods Satellite based communications Cellular Data Network
Cost $$$ $$$$$ $