The port that sees the approach

01Field scene

Radar, buoy, cranes and a private network.

Coastal radar and identity broadcasts watch the approach; a moored buoy reports wind, waves and current at the entrance; cranes and vehicles on the quay run on a private network whose edge closes the control loop next to them.

Each source keeps its own clock and its own format. The work of the port’s edge is to put them on one time base and one chart.

Figure as text: A port with coastal radar, a met-ocean buoy, cranes and an edge node

A wireframe port: quay buildings, two ship-to-shore cranes, a vessel alongside, a coastal radar, a met-ocean buoy offshore, a private 5G site and an edge node, linked by dashed red lines.

• Coastal radar
• Met-ocean buoy
• Crane
• Private 5G
• Edge

02Simulator

Where the radar loses the ship.

A radar at 30 m sees a vessel’s superstructure until the curvature of the Earth hides it. The standard propagation assumption, an effective Earth radius of four thirds, gives the distance². Raise the antenna, or the target, and see how the range changes.

Figure as text: Radar horizon over the sea

An elevation drawing over the curved sea surface with a radar mast on the left, a ship’s mast on the right and the red line of sight between their tops.

03Systems diagram

One picture of the approach.

Identity broadcasts give each ship’s name and position; radar confirms what is really there, including vessels that do not broadcast; the buoy sets the sea state for the pilots. At the edge they are fused into one traffic picture and served to the vessel traffic service and the terminal.

Figure as text: Sensor fusion for the vessel traffic picture

A four-tier diagram: AIS, radar and the buoy, the private network, the quay-side edge, and the traffic service and terminal operations.

• Sensors: AIS receiver, Radar, Buoy, Crane telemetry
• Network: Private 5G, Fibre
• Edge: Quay edge
• Users: Traffic service, Terminal

9 links. Scenarios: Normal operation; Fibre cut.

04Timeline to 2030

The next generation of maritime data.

The VHF data exchange system adds a data channel and a satellite segment beside the identity broadcast³; the S-100 framework replaces the paper-era chart model with data products that can carry real-time layers⁴. Both belong to the e-navigation plan of the International Maritime Organization⁵.

Figure as text: Maritime data standards toward 2030

A timeline from 2014 to 2030 with the AIS technical recommendation, the e-navigation plan, the VHF data exchange system and S-100 edition 5.

1. 2014-02 AIS technical characteristics, revision 5 (ITU-R M.1371-5). The current revision of the identity broadcast that seagoing ships carry.¹
2. 2014-11 e-Navigation implementation plan. Harmonised collection, exchange and presentation of maritime information.⁵
3. 2022-02 VHF data exchange system (ITU-R M.2092-1). Data channels and a satellite component beside AIS.³
4. 2022-12 S-100 edition 5 (IHO S-100). The universal hydrographic data model behind the next charts.⁴