Maptek Sentry

Deployable mobile system for remote, safe surface monitoring

Sentry is a flexible and cost effective solution for monitoring risk. The system combines an I‑Site laser scanner with sophisticated software to monitor and analyse movement over time.

The fully transportable monitoring system is deployed in a custom trailer offering a power and communications module, cellular and wifi networking, a dedicated, stable bollard for an I-Site laser scanner and Sentry software.

Sentry helps personnel monitor and report on movements caused by surface instability that have the potential to interrupt mining activity. Applications include mining and civil engineering projects, including road cuttings, land slips, dam walls and tunnel openings.

Sentry is capable of measuring changes resulting from both rapid and gradual movement. Monitoring frequency and notification thresholds are fully customisable, providing accurate, useful results for mine design and planning. Sentry supports constant surface monitoring required by geotechnical teams and mine management for managing risk.

Sentry monitors and maps the complete scene, producing a true digital terrain model for 3D viewing.

The system is easily mobilised and can be set up repeatedly over the same location while maintaining monitoring history.

Applications

Highwall Monitoring

Maptek Sentry helps improve pit safety and risk monitoring by early detection of highwall, bench and slope movements.

Tailings Dam Monitoring

Maptek solutions help reduce risk by early detection of surface movements and moisture in highwalls and tailings dams.

Underground Monitoring

Maptek Sentry helps improve safety underground by early detection and notification of surface movements.

The operator can unpack the system and start monitoring in 15 minutes!

Sentry monitors multiple areas within a scene without the need for targets or reference points. Movement can be detected down to 1mm per hour. While radar systems can monitor even smaller movements, they have limitations when there are large movements.

Sentry is most cost effective when used to scan and monitor several zones concurrently. Visualisation and analysis tools can be readily deployed for monitoring on a broader scale before deploying radar assets if required.

Animations of time changes can be used to effectively show morphology of terrain changes over time. Timelapse capability allows users to see changes and use this information to predict movement in other areas. Heatmaps coloured by displacement or velocity provide an overview of movement.

Alerts and notifications are easily defined, allowing critical information to be sent direct to geotechnical staff or mine managers so they can decide on action to be taken.

Combining true 3D measurement with 3D photographs, Sentry provides operations with an accurate, reliable monitoring tool.

Sentry is compatible with I-Site XR3, I-Site LR3, I-Site 8820 and I-Site ER/SR laser scanners. The Sentry transportable monitoring system can be ordered in various configurations to suit site requirements.

The Sentry difference

  • Lower cost than alternative monitoring systems
  • Designed for use in rugged mining environments
  • Operates in low light for underground and night time monitoring
  • Simple to set up and operate in remote locations
  • Quantify volume of material moved during rock failure
  • Heat map and imagery provides an overview of surface movement
  • User defined legend to quickly identify changes
  • Automatically generate weather conditions, displacement, velocity and inverse velocity graphs
  • Use previous monitoring data to create timelines
  • Generate and animate zones to show movement over time
  • Use laser scan data for survey applications and geotechnical analysis
  • Export data to PDF and MS Excel formats for easy sharing

Case Studies

Trend analysis for surface movement

The new Maptek Sentry system provides intuitive visualisation and trend analysis tools, enabling better understanding of surface movements within mines.

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Tailings dam survey

The new Maptek Sentry system provides intuitive visualisation and trend analysis tools, enabling better understanding of surface movements within mines.

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Movement tracking and stability monitoring

Sentry laser-based monitoring system provides a safe, accurate and cost-effective solution for tracking and analysing surface movement.

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