Dark vessel candidates
Radar-only contacts, AIS gaps, missing identity, and track continuity become review-ready evidence instead of scattered operator clues.
AMSAS / Passifera
Hubble Stack AMSAS is an AI-enabled Maritime Security Analytics System designed as a non-intrusive decision-support layer over the existing Coastal Surveillance Network. It turns fragmented sensor feeds into one risk-ranked operational picture.
Inputs
The mission
Radar-only contacts, AIS gaps, missing identity, and track continuity become review-ready evidence instead of scattered operator clues.
Duplicate MMSI, invalid identity, EO class mismatch, route conflict, and registry inconsistencies are surfaced with confidence.
Loitering, geofence entry, route deviation, unexpected meetings, and abnormal movement are ranked as Vessels of Interest.
AMSAS combines deterministic rules, geospatial logic, statistical anomaly detection, and ML models. The system prioritises evidence and keeps authorised watchkeepers in control.
Associates radar, AIS, EO, VHF, PANS, weather, and external intelligence into one maritime entity.
Every alert carries track history, geofence events, transcripts, documents, EO frames, or registry matches.
Searches vessel history, PANS records, VHF transcripts, reports, and intelligence records with cited context.
AI recommends and explains while final watchkeeping decisions remain under authorised human control.
Architecture
Sensor and external feed adapters
Ingestion, normalisation, and common maritime model
Radar/AIS/EO association and vessel entity fusion
Rules, geofences, anomaly models, and risk scoring
Evidence store, replay, audit, and semantic search
Watchkeeping portal, VOI ranking, and MDA assistant
Kafka or Redpanda, MQTT, PostGIS, TimescaleDB, ClickHouse, OpenSearch, vector search, YOLO or DETR, Whisper or Indic ASR, LLM extraction, MLflow, Kubernetes, Prometheus, Grafana, RBAC, encryption, and audit trails.
Pilot path
Acquire sample data, define schemas, build ingestion, implement baseline fusion, geofence logic, risk scoring, and an initial dashboard.
Add anomaly detection, behavior analytics, EO classification, PANS extraction, VHF ASR/NLP, error analysis, and false-alert tuning.
Integrate selected live feeds in advisory mode, compare outputs with watchkeeper observations, and build model governance.
Run UAT, refine operational workflows, harden security, prepare V&V evidence, training material, and deployment guidance.
Validation metrics
The demonstration target is a pilot-ready maritime decision-support system with measurable association accuracy, false-alert reduction, latency, extraction quality, and operator workload impact.
Prototype scenario
Secure by design
AMSAS is shaped for coastal surveillance environments where audit, explainability, role-based access, model traceability, and operator trust matter as much as detection speed.