ASy - GNSS Tide

"High-Precision GNSS-to-Tide Telemetry Engine"

ASy - GNSS Tide Bridge is a cutting-edge software solution designed to transform satellite-based data into accurate, real-time Tidal information. This bridge eliminates the need for manual tide gauges by leveraging GNSS RTK technology to monitor sea-level changes with millimeter precision.

Key Features & Capabilities

1. Intelligent NMEA Processing

• Real-Time Calculate MSL (Mean Sea Level) instantly from industry-standard NMEA-0183 protocols with RMC,GST.

• Auto-Zero Calibration: Features a "Zero Start" logic that automatically calibrates the initial sea level relative to a reference point upon engine start.

• Geoid Monitoring: Dynamic visualization of the relationship between Geoid Separation (N) and Ellipsoid to ensure geodetic data integrity.

2. Advanced Data Averaging & Logic

• Smart Interval Engine: Automatically calculates sea level averages over user-defined intervals (1 to 60 minutes) to filter out "sea clutter" and wave-induced noise.

• Clock-Sync Precision: The recording system synchronizes perfectly with GPS time, ensuring data logging occurs exactly at the :00 second mark of the selected interval.

• Admiralty Method Ready: Output formats are optimized for professional tidal analysis and long-term hydrographic reporting.

3. Dynamic Visual Analytics

• Live Trend Graphing: A real-time visualizer featuring Adaptive Smoothing Trend Lines that allow surveyors to distinguish tidal patterns from temporary surface fluctuations.

• Interactive Inspection: Hover functionality on the graph provides instant access to historical height values and precise timestamps.

• Geoid Sketching: Real-time canvas rendering of the Geoid/Ellipsoid relationship based on live GNSS input.

4. Professional Data Distribution (The Bridge)

• Multi-Protocol Output: Processed tidal data can be re-broadcasted via UDP Client, Serial COM, or TCP Server.

• Custom NMEA Prefixing: Allows users to define custom NMEA sentence headers (e.g., $PASY...), making the data compatible with 3rd-party hydrographic software like HYPACK, EIVA, or QINSy.

• Dual-Layer Logging: Simultaneously logs high-frequency raw data and processed hourly "Admiralty" snapshots to CSV/Text files.

Technical Specifications

• Protocol Support: NMEA-0183 (Input), UDP/TCP/Serial (Output Bridge).

• Coordinate Tracking: Real-time WGS84 Geodetic Lat/Lon monitoring.

• UI Architecture: High-contrast "Navy-Gold" executive interface optimized for 24/7 control room or vessel bridge operations.

Why It Matters for Your Operations

This software represents a significant cost-saving for hydrographic surveys. By utilizing ASy - GNSS Tide Bridge, survey teams can derive vertical tide corrections directly from their RTK rovers, removing the logistical burden and equipment costs associated with installing physical tide gauges in remote or deep-water locations.

ASy Group — Precision Bridge for Maritime Excellence.