EIVA NaviPac 4.11.0: Integrated Software for Marine Survey and Offshore Construction

EIVA NaviPac 4.11.0 is a major version of the EIVA NaviPac suite, a leading software platform for marine survey, offshore construction, and precise positioning operations. It serves as the central hub for data acquisition, quality control, and real-time visualization during complex marine projects.

Core Philosophy: A Unified Workspace for Marine Operations

NaviPac integrates all critical aspects of a marine operation—vessel positioning, sensor data streams, survey line planning, and data logging—into a single, cohesive interface. This provides surveyors, engineers, and vessel masters with unparalleled situational awareness and control.

Key Features & Capabilities in NaviPac 4.11.0

Version 4.11.0 represents a mature and feature-rich release, focusing on stability, performance, and enhanced workflows.

1. Real-Time Positioning & Navigation

• Vessel and Tool Positioning: Tracks the real-time position of the survey vessel and all attached assets (towfish, ROVs, AUVs, construction tools) using inputs from GNSS, USBL, LBL, and inertial systems.

• Dynamic Vessel Model: Displays a 3D model of the vessel with all sensor offsets accurately represented, updating in real-time with pitch, roll, and heave.

• High-Precision Guidance: Provides advanced guidance for following pre-planned survey lines or construction templates with high accuracy, including cross-track error and approach predictions.

2. Survey Planning & Execution

• Line Planning Module: Create and manage complex survey line plans (pre- and post-lay, corridor, grid) with support for turn optimization.

• Automated Line Following: Interfaces with vessel Dynamic Positioning (DP) and autopilot systems for hands-free, precise line guidance.

• Coverage Monitoring: Real-time coverage maps show what areas have been surveyed, ensuring data density and completeness.

3. Data Acquisition & Sensor Integration

• Multi-Sensor Integration: Acquires and synchronizes data from a vast array of sensors: multibeam echosounders, side-scan sonar, sub-bottom profilers, magnetometers, and water column sensors.

• Centralized Data Logging: Records all positioning, navigation, and sensor data in synchronized raw data formats (like EIVA's own RAW format) for post-processing.

• Real-Time Quality Control (QC): Live data viewers and QC tools allow operators to monitor data quality (e.g., sound velocity profile effects, noise levels) and make immediate adjustments.

4. Offshore Construction Support

• Structure Installation: Specialized modules for guiding the placement of offshore structures, pipelines, and cables. Includes templates for pile positioning, foundation placement, and layback calculations.

• Cable Lay & Burial: Tools for planning  download and monitoring subsea cable lay and burial operations, including tension monitoring and touchdown point (TDP) prediction.

5. Reporting & Interoperability

• Real-Time Reporting: Generates standard reports (e.g., Line Scan, Position Log) during operations.

• EIVA Ecosystem Integration: Seamlessly works with EIVA’s post-processing software (EIVA NaviModel for processing and EIVA ScanFish for AUV mission planning).

• Industry Standards: Supports common data formats for export to other processing packages and GIS systems.