Lateral drift
Sustained movement along the berth line — line stretch, surge, mooring-system loading.
WARN / ALARM Marine drift & draft monitoring
Every tanker,
Every tanker,
held to the line.
DriftScout reads a hull-mounted optical target through a fixed jetty sensor and reports lateral drift, draft change and range in real time — to the centimetre, at 10 Hz.
No rig on the vessel — one sensor and a lightweight magnetic target. ±1 cm @ 12 m 10 Hz live WARN / ALARM discipline SCADA · Modbus · OPC UA
The problem
A moored tanker is never truly still.
Line stretch, tide, passing-vessel surge — a moored tanker can move along the berth while cargo operations are live. Unchecked, sustained movement stresses the loading arm and the mooring system. DriftScout makes it visible — and alarms on it.
Draft change
Hull rise and fall during discharge and tide. Expected — so it is reported, never alarmed.
ReportedRange & rotation
Supplementary vessel geometry at the berth, continuously available to the operator.
Reported No false alarms during unloading. Draft change from cargo and
tide is measured and reported — it never triggers the alarm. Alarms key on sustained
lateral drift only.
How it measures
One sensor. One target. One calibration.
A fixed optical sensor at the jetty tracks a coded target on the hull. Every measurement follows the same disciplined chain.
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Detect
The sensor identifies the coded hull target and validates lock quality before any value is trusted.
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Calibrate
One-shot lens calibration and automatic berth-axis alignment. Approved calibrations are locked and cannot be overwritten.
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Project
Target displacement is resolved onto the berth’s lateral, vertical and range axes — in the operator’s convention.
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Judge
Sustained movement is separated from wave oscillation and compared against per-vessel tolerance profiles — LNG carrier, VLCC, container, general.
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Act
WARN / ALARM raises a persisted alarm record: notifications on every console, external triggers, SCADA outputs.
< 10 mm
Lateral accuracy @ 12 m
10 Hz
Live update rate
300 × 300 mm
Target panel
0.4 kg
Target mass
The target
A non-permanent vessel interface.
A lightweight coded panel, magnetically attached to the hull after mooring and removed before unmooring. No permanent modification to the vessel — ever.
- Weather- and UV-resistant panel 300 × 300 × 40 mm, high-contrast coded surface.
- Magnetic attachment ≈ 0.4 kg, four magnetic studs — on the hull in seconds.
- Fitted and removed in minutes Handled by terminal staff with the supplied pole, after mooring and before unmooring.
- No vessel modification No rig, no radar, no reflectors on the hull.
The console
One console for the whole berth.
Every screen an operator needs, in one responsive application — on the control-room wall or in your pocket.
Recorded, exportable, auditable.
Every session keeps a baseline, a time-series of measurements, state transitions and alarm events. Export drift reports, alarm history and audit logs as CSV or PDF for operational review and compliance.
CSV · PDF · Alarm history · Audit log Capabilities
Built for terminal operations.
Every capability is engineered to one end: a measurement you can trust while cargo is live — without adding work for the crew.
Alarm discipline
Alarms key on lateral drift only; draft change from cargo and tide is reported but never alarms. Every event is a persisted, acknowledgeable record.
No false alarmsTechnician-proof calibration
One-shot lens calibration and automatic berth-axis alignment. Locked calibrations no restart or API can overwrite.
Millimetre-grade scaleIndustrial integration
Modbus and OPC UA expose every sensor to your PLC or DCS, with a direct alarm output and a heartbeat watchdog.
SCADA-readyCommissioning bench
Built-in protocol emulators and scripted drills prove the integration before a single PLC is wired.
No bench hardwareOperations-grade service
Live in-app logs, boot-time backups, hand-gesture commands, CSV/PDF compliance exports.
Run it like a utilityMulti-sensor scalability
One measurement engine drives one or many sensors, one berth or several — standalone or integrated with your platform.
Grows with your terminal Industrial I/O
Two SCADA surfaces, one event pipeline.
Live drift state, alarm level and heartbeats are published to the plant. Both surfaces are fed by the same event pipeline — they can never disagree.
Modbus
Native Modbus TCP, RTU or serial. Live values, state and alert level, a direct alarm output and a heartbeat watchdog for the PLC or DCS.
PLC / DCSOPC UA
Every sensor exposed as a browsable object with typed variables — drift, draft, range, rotation, state, level, heartbeats.
Browsable address spaceWebhooks & MQTT
Event-driven triggers for beacons, IP speakers and external annunciation — plus a REST API and a live WebSocket stream for applications.
Application integration Safety boundary respected. DriftScout publishes alarms and
notifications and is designed for integration into terminal safeguarding systems
under the terminal’s own safety and cause-and-effect assessment.
Deployment
Autonomous, or integrated with your platform.
One measurement engine, two deployment modes. Start standalone at a single berth, grow to a coordinated, port-wide installation.
Standalone
Self-contained for a single berth. Bundled storage, zero configuration, local operation — up and running in a day.
Single berthPlatform-integrated
Coordinates with the terminal’s central platform — shared berth context, operating history and presentation across the wider system.
Port-wide
Specifications
Preliminary technical characteristics.
Values subject to confirmation during detailed engineering and site acceptance — every installation is verified with controlled displacement tests.
No radar. No reflectors. No rig on the vessel.
Contact
Discuss your berth.
Tell us about your terminal — we’ll scope the monitoring layout, accuracy and integration for your site.
Email us Response within one business day.
Scope of supply. Optical sensor, coded target and handling
pole, operator console, SCADA interfaces, installation and site-acceptance support.