Discreet situational awareness for offshore and subsea environments.

Offshore energy installations, subsea pipelines, and underwater infrastructure operate in complex and often inaccessible environments. Continuous monitoring is essential — not only for operational reliability, but also for risk mitigation and regulatory compliance.

HydroVision SeaStar24 supports offshore and infrastructure monitoring through passive acoustic imaging. The system enables the spatial visualization of underwater acoustic activity without transmitting acoustic signals.

This emission-free approach allows discreet and environmentally compatible monitoring of sensitive subsea assets.

Why Passive Monitoring in Offshore Environments?

Conventional inspection methods often rely on:

  • Active sonar systems
  • Periodic ROV inspections
  • Visual diver-based surveys
  • Post-event diagnostics

These approaches may introduce acoustic emissions, require complex deployment, or provide only snapshot-based information.

SeaStar24 complements existing inspection strategies by offering:

  • Real-time acoustic situational awareness
  • Emission-free monitoring
  • Continuous observation capability (project-based configuration)
  • Integration into existing offshore monitoring systems

Application Areas

Offshore Wind Farms

SeaStar24 may support monitoring scenarios involving:

  • Foundation interaction
  • Subsea structural acoustic activity
  • Environmental acoustic conditions
  • Vessel proximity awareness

Passive acoustic imaging can assist in detecting unusual acoustic events near wind turbine foundations or subsea structures.

Subsea Pipelines & Cables

Potential monitoring contexts include:

  • Proximity-related acoustic activity
  • Mechanical interaction detection
  • External disturbances
  • Infrastructure-adjacent subsea operations

The passive nature of SeaStar24 avoids introducing additional acoustic energy into marine environments.

Offshore Energy Installations

In oil, gas, and energy transition environments, acoustic situational awareness may support:

  • Subsea asset protection
  • Structural interaction analysis
  • Installation-phase monitoring
  • Maintenance activity observation

SeaStar24 can be configured for project-based deployments tailored to specific site conditions.

Passive Acoustic Imaging for Infrastructure Protection

SeaStar24 does not function as a conventional inspection camera.
Instead, it provides spatial acoustic visualization of underwater activity.

Depending on configuration and environmental conditions, the system may support:

  • Localization of acoustic sources near critical structures
  • Identification of unusual subsea acoustic patterns
  • Monitoring of human or equipment-related activity
  • Complementary data for structural assessment workflows

Operational capabilities depend on deployment geometry, environmental conditions, and project scope.

Integration into Offshore Monitoring Architectures

SeaStar24 is currently available as a pre-series (zero-series) system designed for project-based integration.

The platform can support:

  • Integration into offshore monitoring networks
  • Combination with radar and surface surveillance systems
  • Sensor fusion with environmental or structural monitoring platforms
  • Deployment alongside ROV/AUV operations

System configuration can be adapted to site-specific requirements.

This flexible architecture enables tailored monitoring solutions for complex offshore environments.

Environmental Compatibility

Offshore monitoring increasingly requires environmentally responsible technologies.

As an emission-free passive system, SeaStar24:

  • Does not transmit acoustic pulses
  • Does not introduce additional underwater noise
  • Supports low-impact monitoring strategies
  • Aligns with marine environmental protection frameworks

This makes it suitable for use in environmentally sensitive areas or regulated offshore zones.

Technical Capabilities Overview

  • 24-channel hydrophone array
  • Real-time beamforming and acoustic localization
  • 2D and 3D acoustic visualization
  • Ethernet-based data interface
  • Modular deployment architecture
  • Configurable for project-specific requirements

Detailed technical documentation available upon request.

Frequently Asked Questions

SeaStar24 does not replace visual inspections. It complements them by providing continuous acoustic situational awareness.

No. SeaStar24 operates completely passively and does not emit acoustic pulses.

The platform can be configured for offshore wind environments depending on project requirements and site conditions.

SeaStar24 is currently available as a pre-series solution intended for project-based deployment and cooperative development.

Discuss Your Offshore Monitoring Requirements

To explore project-based deployment, integration options, or pilot installations, contact our team.

gfai tech GmbH
Volmerstraße 3
12489 Berlin, Germany
Phone: +49 (0)30 814 563-750
Email: info@gfaitech.de