LVA Software

Longwall Visual Analysis (LVA) is a powerful software solution for monitoring, visualising, analysing, and reporting critical longwall data. Developed since 2016 and now deployed on nearly all Australian longwalls, LVA delivers real-time insights and comprehensive historical analysis to support safer and more productive operations.

Who uses LVA and why?

Operators rely on LVA for real-time feedback on longwall pressures and face conditions.
Geotechnical engineers value the long-term trends and 3D visualisation of load cycle data.
Maintenance teams use LVA to identify poorly performing supports and hydraulic issues.
Managers appreciate the high-level summaries, production snapshots, and daily alert emails for quick situational awareness.

Operating Modes

Live Mode – Real-time display of longwall conditions.
Historical Mode – Explore past data to identify trends and investigate events.
Multi-user Access – Any number of users can view LVA data live on desktop or laptop.
Web Browser Access – Selected LVA views available via secure browser link.
Server/User/Viewer Modes – Control user permissions for layout and settings management.

Key Features

Live Visualisation
- 2D and 3D displays of leg pressures, system pump pressure, shearer location, DA ram, LAS cycles, pitch/roll angles, floor deformation, gas data, shield heights (if instrumented), and top coal caving (if applicable).
Advanced Analytics
- Trend analysis of leaking legs, calibration issues, yield counts, set-to-roof cycles, loading rates, cycle durations, TWAP (Time-Weighted Average Pressure).
- Load cycle maps show per-shear data across full panels (TWAP, yielding, low pressures, leaking, durations).
Smart Alerting System
- Real-time monitoring for operational risks, including cavity formation and weighting events.
- Email alerts and daily snapshots delivered with relevant images and data insights.
Integration & Access
- Automatic chainage import from spreadsheets.
- Data displayed by time or chainage.
- Longwall data can be overlaid on AutoCAD mine plans.
- Live Weblink feature allows remote access to key LVA images.

Displays & Analysis Tools

2D and 3D images for visualising current and historical status.
Automated identification of set-to-roof cycles, shearer passes, yield events, calibration drift, and leg leaks.
Configurable gauges and indicators to detect early warning signs of roof instability or poor support performance.
Comprehensive reporting and export options:
- Save images or export graph data to tables.
- Overlay longwall metrics on mine layouts for context.
- Visualise full-panel shear data for rapid pattern recognition.