GMS-Prism

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All Products | Dams and Tailings Dams | LiDAR | Long-Term Monitoring | Open-Cut Mining

LONG-TERM, BACKGROUND PRISM SOLUTION

The GMS-Prism (Geotech Monitoring Station) is designed as a long-term, background monitoring tool for detecting and measuring deformation on tailings dams. It tracks physical prisms installed across tailings dams over long periods of time.

It specialises in monitoring open-cut pits and highly vegetated slopes, and detecting and measuring deformation on tailings dams, dumps and cuttings.

Whether choosing the GMS-Prism or its sister-model, the GMS-Dual, both systems are equipped with a range of features that take them well beyond the capabilities of typical robotic total stations. The system has undergone significant software updates, making it even more user-friendly and useful.

HIGH ACCURACY POINT MEASUREMENTS

The GMS-Prism measures and displays deformation for prisms with high accuracy. Prism Points are highly accurate, can be scanned from long ranges, and are fast to scan. All measurements are processed and ready for analysis at the end of each scan, enabling early detection of movement.

For additional accuracy, the vector movement in 3D is also measured, giving users a better understanding of ground conditions with the benefit of both readings.

POWERFUL DATA VISUALISATION AND ALARMING

No longer relying on basic spreadsheets, all data from the GMS is intuitively visualised in GroundProbe’s patented software, SSR-Viewer. Powerful visualisations include both 3D DTM View and Front View. Users are given access to its entire suite of charting, analysis and alarming tools, gaining the full benefits that our radar customers are accustomed to on top of a range of features developed specifically for the GMS.

All data collected can also be directly imported into data aggregation software, MonitorIQ.

DATA AND IMAGE CO-REGISTRATION

In SSR-Viewer, high-definition images are co-registered with the data generated by the GMS. The data is visualised as a deformation heatmap and draped directly over the image or external 3D model, providing spatially co-located information of every point. By clicking on any part of the image, movement can be reviewed and assessed live.

AUTOMATIC PRISM COLLIMATION

Prism Points are automatically tracked and located at every scan. There are two lasers on board; one for measuring deformation and one dedicated to prism collimation. This ensures that even if a prism is moving, its location is never lost, without ever relying on historical data for coordinate information. The GMS hunts for, finds and locks Prism Points into their exact position with each and every scan.

TWO WAYS TO MONITOR

For ultimate flexibility, the GMS-Prism can also be used as a periodic monitoring tool to suit differing site needs. Multiple areas can be scanned at regular intervals using the one device, allowing periodic coverage of typically active areas.

OPERATIONAL SPECIFICATIONS		ENVIRONMENTAL
Scan Area (Coverage): 360° Azimuth 100° Elevation (45° look-up and 55° look-down)	Dense Point Spacing: 0.5° x 0.5° (5m @ 1000m)	Operating Temperatures: GMS Scanner Head: -20°C to +50° PSU and PU: -5°C to +50°C
Range: Optimal Range: 2,000m Max Operational Range: 5,000m (9 Prisms @ 20km Visibility)	Deformation Measurement Accuracy (Prisms): ±2mm + 2ppm	Humidity: Maximum 95% non-condensing
Data Size: 80kb per scan @ 1000 Points		Protection: GMS Head: IP54 Power Supply Unit andProcessing Unit: IP65

OPERATIONAL SPECIFICATIONS

ENVIRONMENTAL

Scan Area (Coverage):

360° Azimuth
100° Elevation (45° look-up and 55° look-down)

Dense Point Spacing:

0.5° x 0.5° (5m @ 1000m)

Operating Temperatures:

GMS Scanner Head:

-20°C to +50°

PSU and PU:

-5°C to +50°C

Range:

Optimal Range: 2,000m

Max Operational Range: 5,000m
(9 Prisms @ 20km Visibility)

Deformation Measurement Accuracy (Prisms):
±2mm + 2ppm

Humidity:
Maximum 95% non-condensing

Data Size:
80kb per scan @ 1000 Points

Protection:

GMS Head: IP54

Power Supply Unit andProcessing Unit: IP65

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