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Sagsea Series Fiber Optic Inertial Navigation System
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Sagsea Series Fiber Optic Inertial Navigation System

FiberCore Technology, All-Domain Navigation

The Sagsea series Fiber Optic Inertial Navigation System is a professional-grade, high-precision navigation product developed by our company in collaboration with top domestic research institutions, specifically designed for marine surveying, underwater exploration, and engineering applications. This series is based on advanced fiber optic gyroscope technology, offering a complete navigation solution from deck-mounted units to deep-sea integrated systems. It features excellent positioning accuracy, attitude stability, and environmental adaptability, meeting the core requirements of various marine platforms for highly reliable navigation.

Sagsea Series Fiber Optic Inertial Navigation System

Key Features & Advantages

Main Applications

  • Hydrographic Surveying and Oceanographic Research

    Provides high-precision position and attitude data for multibeam echo sounding and seabed terrain mapping.

  • Underwater Vehicle Navigation (ROV/AUV)

    Serves as the core navigation system for underwater platforms such as ROVs and AUVs, enabling precise positioning and path following.

  • Dynamic Positioning (DP) of Vessels

    Provides real-time motion parameters such as heave, roll, and pitch for engineering and research vessels.

  • Marine Engineering Support

    Used for high-precision navigation in projects such as submarine pipeline laying, cable installation, and underwater construction.

  • Military and Security Applications

    Provides stable and reliable navigation support for underwater detection and surveillance systems.

Specifications

Navigation Performance Specifications:

 

Specification Item Technical Parameters
GPS-Aided Navigation
Heading Accuracy

≤0.05° secφ（RMS）
Attitude Accuracy

≤0.01°
Real-time Heave 5 cm or 5% of heave amplitude (whichever is greater)
Delayed Heave 2 cm or 2% of heave amplitude (whichever is greater)
Position Accuracy (Horizontal/Vertical)

RTK：20mm+1ppm/30mm+1ppm

BeiDou PPP: 0.3m / 0.6m
Single Point: 1.2m / 2.5m
Pure Inertial Navigation
Heading Accuracy ≤0.1° (RMS, 1 hour)
Attitude Accuracy ≤0.02° (RMS, 1 hour)
Position Accuracy ≤2 nm (CEP50, 1 hour)

 

Product Specification Comparison:

 

Specification

Sagsea I-s

Sagsea I-30

Sagsea I-D
Product Positioning Standard Deck-Mount Unit Integrated Subsea Unit Modular Deep-Water System
Installation Method Deck Installation Subsea Installation IMU: Subsea Installation; Deck Unit: Standard Housing
Housing Material Standard Protective Housing Titanium Alloy IMU: Titanium Alloy; Deck Unit: Standard Enclosure
Protection Rating

IP65

 Deep-Sea Rated Protection IMU: Deep-Sea Rated Protection
Interface Configuration 4 configurable RS-232/422 ports 1x RS-422 receive + 3x RS-422 transmit GNSS module integrated into deck unit
Cable Configuration 10 m test cable 10 m underwater mateable data cable (incl. power) 10 m underwater mateable interconnecting cable
GNSS Integration Standard GNSS board Built-in underwater GNSS module GNSS receiver module integrated into deck unit
Debugging Interface Standard interface USB + Ethernet + Debug Serial Port Standard debugging interface
Dimensions

180×160×135mm

190×190×173mm

 IMU same as I-30, deck unit configured separately
Key Features Cost-effective, easy to install Deep-water operation, fully integrated design Flexible deployment, high precision in deep water
Service hotline:

022-5918-6252

Email: blueholesales@126.com

Address: Gate 6, Building 29, Yuhu Nanyuan, Huanhu East Road, Jinghai District, Tianjin

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