Overview

BSM Tech’s ROV Hull Inspection system is an advanced, remotely operated underwater vehicle (ROV) designed for efficient and high-precision hull inspections of commercial, naval, and offshore vessels. Utilizing cutting-edge high-resolution imaging, ultrasonic testing (UT), and 3D sonar mapping, this system ensures compliance with classification society requirements while minimizing downtime and operational costs.

1. Technical Description
     1.1 Purpose
– To perform detailed underwater hull inspections without requiring dry docking.
– Detect structural defects, biofouling, corrosion, and coating degradation.
– Assess hull integrity for regulatory compliance (IMO, IACS, SOLAS, MARPOL, ABS, DNV, BV, Lloyd’s Register, RINA, etc.).

     1.2 Key Features
– High-Resolution 4K Cameras & Sonar Imaging – Captures real-time visuals of the hull’s condition.
– Ultrasonic Thickness Gauging (UTG) – Measures hull plating thickness to detect corrosion or structural wear.
– 3D Sonar Mapping – Creates precise hull contour models for defect analysis.
– AI-Powered Defect Detection – Identifies weld cracks, cavitation, and coating failures.
– Magnetic Crawlers & Thruster Stabilization – Ensures stable movement along the hull, even in high currents.
– Real-Time Data Transmission – Enables remote monitoring from onboard or shore-based control centers.
– ROV Self-Navigation & GPS Integration – Ensures accurate positional tracking and repeatable inspections.
– Customizable Sensor Payloads – Supports additional sensors (CP probes, thickness gauges, etc.) based on client requirements.

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2. Technical Information
     2.1 ROV Specifications
| Parameter | Details |

| Operating Depth | Up to 300m (customizable to 1000m) |
| Camera System | 4K UHD, low-light, and 360° panoramic |
| Sonar Technology | Multi-beam & 3D scanning sonar |
| UT Thickness Gauge | 0.5mm – 50mm accuracy |
| Navigation System | GPS, IMU, and DVL integrated |
| Thruster System | 6 to 8 vectorized thrusters |
| Magnetic Crawler | Yes (for stationary inspections) |
| Lighting | LED high-intensity floodlights |
| Control System | Tethered & wireless operation |
| Real-Time Data Streaming| Yes, via fiber optic cable |
| Power Supply | Battery & tethered power options |
| Operational Temperature | -5°C to +40°C |

     2.2 Inspection Capabilities
✅ Corrosion Mapping & Thickness Measurement – Identifies areas of structural loss.
✅ Biofouling & Marine Growth Detection – Determines the need for hull cleaning.
✅ Weld & Coating Inspection – Detects cracks, delamination, or cavitation damage.
✅ Propeller & Rudder Examination – Inspects damage or misalignment in propulsion systems.
✅ Sea Chest, Anodes, and Intake Grating Checks – Ensures critical components are free from blockage.

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3. Compliance & Regulatory Standards
BSM Tech’s ROV Hull Inspection system meets the requirements of leading classification societies and international maritime regulations:
– IMO Resolution A.1056(27) – Guidelines for non-destructive testing in ship inspections.
– IACS UR Z17 – Underwater hull inspections for classification renewal.
– SOLAS Chapter XI-1 Reg. 2 – Maintenance of ship structure integrity.
– MARPOL Annex I – Prevention of pollution during hull inspections.
– ABS, DNV, Bureau Veritas, Lloyd’s Register, RINA, ClassNK – Certification body compliance.

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4. Benefits of ROV Hull Inspection
– Cost Reduction – Eliminates the need for expensive dry-docking inspections.
– Minimized Downtime – Fast deployment with minimal operational disruption.
– Safety Enhancement – Avoids the risks of human diver inspections.
– Regulatory Compliance – Ensures ships meet classification and environmental standards.
– Data-Driven Decision Making – Provides detailed hull integrity reports for maintenance planning.

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5. Deployment & Integration
BSM Tech’s ROV system can be deployed from onboard vessels, support ships, or shore facilities. It integrates seamlessly into existing fleet maintenance programs and is designed for fast mobilization and real-time remote monitoring.

     5.1 Deployment Methods
– Side Launch from Deck – Suitable for most commercial vessels.
– Aft Launch via A-Frame – For deep-sea operations.
– Diver-Assisted Launch – For confined or complex environments.

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Conclusion
BSM Tech’s ROV Hull Inspection system provides a non-invasive, highly accurate, and cost-effective solution for assessing ship hull integrity. With AI-powered imaging, real-time reporting, and classification society compliance, it represents the future of marine hull inspections.