ASy - GPS Verifier

"Advanced GNSS Position Validation & Reference Verification System"

ASy - Verifier is a professional-grade software solution designed for precise validation of GNSS (Global Navigation Satellite System) coordinates. It serves as a critical Quality Control (QC) instrument for surveyors to ensure sensor positioning accuracy against fixed Bench Marks or dynamic target references in real-time.

Key Features & Capabilities

1. Dual-Mode Verification System

The software offers two flexible verification methodologies to suit various field requirements:

• BM/Internal Mode: Compares current GNSS positions against fixed terrestrial coordinates (Bench Marks) to calculate static deviations.

• External Target Mode: Enables verification against dynamic external targets, ideal for cross-system sensor calibration or dual-offset checking.

2. Real-Time Error Analytics

Get instant insights into your positioning performance:

• Coordinate Transformation: Automatically converts Geodetic data (Lat/Lon) into projected UTM coordinates (Easting/Northing) using a high-precision transformation engine.

• Deviation Metrics: Calculates dE (Delta Easting), dN (Delta Northing), and RMS (Root Mean Square) errors on the fly.

• Statistical Live-View: Features a real-time scatter plot visualizer to monitor positioning clusters and stability trends during the verification process.

3. Professional Automated Reporting

Eliminate manual paperwork with the integrated Auto-Report Generator:

• Microsoft Word Export: Automatically generates formal verification reports in .docx format.

• Comprehensive Data Tables: Reports include per-second log tables, deviation summaries, average values, and final RMS statistics.

4. High-Frequency Monitoring Console

• NMEA Stream Inspection: Integrated system console to monitor raw data packets (GGA strings) from GNSS sensors via Serial (COM) or Network (UDP) connections.

• Stability Guard: Provides visual alerts if positioning accuracy falls outside the user-defined tolerance limits.

Technical Specifications

Feature Specification

Connectivity

Serial (RS232/USB), UDP Client, UDP Server

Projection Engine

Projection C4 (High-Accuracy UTM Transformation)

Data Protocol

NMEA-0183 (Standard GGA Sentences)

Report Output

MS Word (.docx), CSV Raw Logs

ASy Group — Precision Bridge for Maritime Excellence.