Lattice NEPTUNE
Autonomous subsea inspection, monitoring and security
Lattice Neptune enables AUVs to patrol, inspect and recover information from subsea infrastructure, strategic corridors and territorial waters.
Vessel campaigns cannot provide persistent underwater access. Lattice Neptune gives operators and defence customers a practical way to inspect below the surface more often, with better repeatability and lower mobilisation cost.
Installed Lattice devices support AUV patrol, INS correction, information recovery and repeat inspection. AUVs can return to known locations, recover information from Lattice devices and build comparable records over time.
The installed network can include asset integrity, corrosion-protection, environmental, passive acoustic and ADCP / current sensors where configured. Typical measurements include fatigue, movement, corrosion / CP, temperature, pressure, conductivity, underwater acoustic activity and local current behaviour
Applications
ubsea cables, interconnectors, pipelines, offshore wind infrastructure, cable landing zones, ports, strategic seabed corridors and territorial waters.
Customer value
More frequent underwater access. Better inspection records. Local sensor evidence. Lower reliance on vessel campaigns. Stronger support for intervention, security review and follow-up action.
The problem
Subsea cables, interconnectors, pipelines and other seabed assets are still inspected mainly through periodic campaigns. Between campaigns, operators have limited local information on burial loss, seabed disturbance, damage or third-party activity. Low-cost AUVs can patrol more often, but repeatable inspection requires seabed reference points for INS correction.
The Neptune solution
Lattice Neptune creates an installed seabed field that AUVs can use to correct navigation drift, repeat routes and recover processed information from Lattice devices. The output is route-registered information that can be compared with previous patrols and used to prioritise inspection or intervention.
How it works
AUVs follow pre-planned routes using inertial navigation between Lattice nodes. At defined points, the AUV receives navigation correction, transfers selected information, conducts sensor records and stores system health. Data is transferred to the base station through magnetic backhaul or high-speed dock offload.
Customer outputs
- AUV INS correction at defined seabed reference points.
- Repeatable AUV patrol routes in GNSS-denied water.
- Processed information recovered from Lattice devices.
- Route-registered evidence of exposure, movement, disturbance and anomalies.
- Inspection priorities for ROV, vessel or diver follow-up where required.
Applications
- Subsea cables and power interconnectors.
- Pipeline and flowline corridors.
- Offshore energy assets and export routes.
- Port approaches and utilities.
- Strategic seabed passages and critical underwater infrastructure.
- Environmental monitoring routes where repeatability matters.
Lattice Neptune
Ocean Information Services - Autonomy for the Environment
Autonomous subsea inspection, monitoring and security
Lattice Neptune enables AUVs to patrol, inspect and recover information from subsea infrastructure, strategic corridors and territorial waters.
Installed Lattice devices support AUV INS correction, local sensing, information recovery and repeat inspection. AUVs return to known locations, recover selected information and build comparable records over time - reducing blind periods and reliance on vessel campaigns.
WHAT IT DOES
Repeatable AUV patrol and inspection of subsea cables, interconnectors, pipelines, offshore wind infrastructure, ports, strategic seabed corridors and territorial waters.
CUSTOMER VALUE
More frequent underwater access, better inspection records, local sensor evidence and clearer priorities for intervention, security review and follow-up action.
HOW IT WORKS
Installed Lattice devices provide local sensing and edge processing, support AUV INS correction and transfer selected information as the vehicle passes.
Lattice Neptune combines installed sensing, autonomous inspection and information recovery.
OIS provides equipment, integration, mission support and recurring information services
- INSTALLED MONITORING: Devices are deployed at defined assets, route sections or operating areas. Configured sensors capture local behaviour and process sensor data at the edge.
- AUTONOMOUS ACCESS: AUVs follow planned patrols, return to known locations, inspect the surrounding seabed and receive INS correction from installed Lattice devices.
- INFORMATION RECOVERY: Selected information is recovered during pass-by interaction. Mission data and device information are combined without requiring a dedicated vessel campaign.
- OPERATOR OUTPUTS: Comparable inspection records, local sensor evidence, seabed-change findings, security observations, alerts and follow-up priorities.
Applications:Subsea power and data cables
- Interconnectors
- Pipelines and flowlines
- Offshore wind infrastructure and cable routes
- Cable landing zones, ports and harbour approaches
- Strategic seabed corridors and territorial waters
- Defined security patrol areas
Sensor payloads where configured
- Movement, vibration and fatigue
- Corrosion-protection / CP condition
- Temperature, pressure and conductivity
- Passive acoustic activity
- ADCP and local water currents
- Environmental and water-quality measurements
CONFIGURATION: Device spacing, depth, endurance, sensor payload and communications geometry are project-specific.
STATUS: Delivered and qualified magnetic communications and edge processing; integrated AUV INS correction demonstrator programme with BMT