Real-life Pilot Use Cases (PUC) scenarios will be the basis for the demonstration, testing and evaluation of all UnderSec system’s capabilities and capacities, focusing in four different main scenarios. All Pilot Use Cases and subcasses will be split and arranged to be implemented, during two demonstration phases in M30 (March 2026) at Lavrion port / Greece and in M33 (June 2026) at Valencia port / Spain, while an overall simulation will be conducted in Ravenna port / Italy.

Use Case 1 – Isolated ship’s first layer of protection

Ship’s continuous 24/7 self-underwater security awareness, with portable omnidirectional high frequency sonar module, early warning and alarming, regarding ship’s own security potential perimeter intruders (divers or underwater vehicles) detection, automatically activated deter measures (verbal warnings through automatically activated portable underwater loudhailers) and incident’s log-book report extraction, to support formal reporting to the Authorities, ship’s legitimacy traceability and further underwater inspections planning.

Use-case 2: Port’s or critical infrastructure’s first layer of protection with fixed sensors/assets

Continuous 24/7 underwater surveillance and monitoring of port’s/critical infrastructure’s entrance and off the port entrance area, with fixed sensors, electromagnetic sensors’ grid, high frequency omnidirectional fixed active/passive sonars’ grid, underwater cameras with spotlights visual detection system, for anomalies', incoming objects' and explosives’ early detection, localisation, warning/alarming, automatically activated deter measures (verbal warnings through automatically activated portable underwater loudhailers) against potential intruders (divers) and decision making support for further response actions. While the port’s Security Level is ”2” or “3” specific security measures apply and/or are implemented by the port and Law Enforcement Authorities. According to the updated Port Facilities Security Plan (PFSP), the consequent system’s Security Risk Assessment and the suggested protective measures to the Users, there is a continuous 24/7 underwater surveillance and monitoring of port’s entrance and off the port entrance area, with fixed sensors.

Use-case 3: Port’s/critical infrastructures and ship’s second layer of protection with robotic assets

While the port’s Security Level is ”2” or “3”, according to the Security Risk Assessment and/or upon previously detected potential threats or illegal acts, specific security missions (i.e. Patrolling/monitoring of wide underwater areas with robotic autonomous assets, searching/scanning of port’s seabed, entrance and docking places foundation, or ships’ hulls) are assigned to UnderSec autonomous robotic assets.

Use-case 4: Ship’s, port’s and critical infrastructure’s third layer of protection with robotic response assets

Upon specific intelligence, after a suspicious object/container/package’s detection on the seabed/other underwater spot, or strapped/magnetically attached to ship’s hull, a follow-up detailed inspection and response mission (i.e. i) suspicious object (concealed material) classification, ii) thorough scanning/searching/inspection of suspicious ships’ hull, dangerous identified package/container capturing and moving away at secure/safe area) is assigned to the Response ROV with integrated Concealed Material Identification Module (camera and robotic arm).