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Port

Vessel Positioning & Tracking

Combining AI multi-view vessel positioning with AIS-and-video fusion, this solution upgrades a port's existing shore-based cameras into a 24x7 proactive vessel-tracking system. It delivers every vessel's position, heading, speed and identity in real time and projects them onto the shared port twin, closing the gaps left by AIS latency, non-AIS small craft and visual blind spots. VTS operators hold the whole port on a single screen — a waterside picture that is visible, alertable and replayable.

VLM output

An aerial camera pans over a hazy harbor anchorage in front of a coastal city skyline, holding a green-and-red general cargo ship with a red deck crane in the lower right of frame. The camera drifts left and the cargo ship stays roughly stationary on the water, while a passenger ferry crosses mid-channel and numerous smaller barges and fishing vessels sit moored along the waterfront.

  • Primary Vessel DetectedYes
  • Primary Vessel TypeCargo ship
  • Vessel Count15+
  • Vessel Motion StateAnchored
  • Vessel Fully In FrameYes
  • Berthed At QuayNo
  • Camera ViewpointAerial
  • Visibility ConditionHazy
  • Tracking DifficultyModerate

Customer challenges

1

Vessel tracking depends heavily on AIS, which updates infrequently and with latency

2

Small fishing boats and workboats often carry no AIS, creating monitoring blind spots

3

VTS operators juggle radar, AIS and CCTV on separate screens and cannot hold the whole port at once

4

Outer channels and turning basins lack high-resolution imagery, so abnormal vessels go unnoticed

5

After an incident only scattered footage and AIS points remain, making accountability slow to establish

Customer benefits

24x7 AI-driven proactive vessel tracking

Blind spots from non-AIS craft and outer channels closed

Position refresh moves from one AIS fix every 2-10 seconds (up to 3 minutes at anchor) to second-level updates computed frame by frame from video — at 12 knots a vessel covers about 60 metres between two AIS fixes

What is tracked moves from a single antenna fix to the hull itself — bow, stern and heading — with track positioning error within 10 metres (POC acceptance criterion)

One digital-twin view replaces manual cross-referencing across screens

Replayable tracks and imagery accelerate accountability

Rapid deployment on existing poles and cameras, with no marine works

Key features

AI Multi-Focal Shore Camera Grid

Multi-focal lenses cover berths, inner channel and outer channel with overlapping, gap-free fields of view, mounted on existing light poles and fire monitors, with thermal dual-spectrum imaging that keeps tracking through night and sea fog.

AI Vessel Positioning & AIS Fusion

Triangulates multiple views with cross-camera hand-over tracking for real-time vessel position, heading and speed, matches AIS identity while automatically flagging non-AIS targets, and uses VLM to recognize vessel type and behaviour such as speeding, wrong-way movement and abnormal loitering.

Live Vessel Alerts & Records

Issues signal-light graded proactive alerts, keeps replayable tracks and imagery as evidence, and forwards data 24x7 to VTS, MQTT or API.

Live Vessel Digital Twin

Shows live vessel positions and tracks in the port digital twin.

Before & after

Before Flat AIS tracks, slow to update and delayed After — with Linker AI Nexa Real-time 3D vessel dynamics from AIS and video fusion
Before Small non-AIS craft invisible After — with Linker AI Nexa If it is on the water, it is detected
Before Radar, AIS and CCTV cross-referenced by hand across screens After — with Linker AI Nexa A single digital-twin view with events located automatically
Before Abnormal vessels spotted by eye After — with Linker AI Nexa AI recognition with signal-light graded proactive alerts
Before Only scattered footage after an incident After — with Linker AI Nexa Full tracks and imagery available for replay