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Trimble GNSS Metre | 24/7 Automated Mine Monitoring
When it comes to monitoring tailings facilities and mine infrastructure, the stakes couldn’t be higher. Structural movement can be the difference between a managed risk and a catastrophic failure. The challenge has always been getting reliable, continuous data from some of the most remote and demanding environments on the planet.
That’s exactly the problem the Trimble GNSS Metre, powered by Worldsensing, is built to solve.
Set It and (Almost) Forget It
The GNSS Metre is a wireless, autonomous sensor that delivers precise, automated measurement of 3D surface movements around the clock. Using advanced multi-band Real-Time Kinematic (RTK) technology combined with on-device edge processing, it achieves sub-centimetre precision — down to 2mm for 24-hour aggregated values.
That’s survey-grade accuracy, running continuously, with no surveyor required on site.
One look at the hardware tells the story: a compact unit on a single pole, installed and operational with minimal fuss. Battery-powered and designed to last over three years in the field, the GNSS Metre is built for places where running cables or frequent site visits simply aren’t practical.
Built for the Tough Stuff
The GNSS Metre is purpose-built for the most demanding monitoring applications, including:
- Tailings dam and embankment monitoring
- Slope stability in open-pit mines
- Surface subsidence tracking
- Landslide early warning systems
An integrated tiltmetre and environmental sensors add another layer of intelligence, helping engineers understand not just that movement is occurring — but why.
Smarter Monitoring Through Trimble 4D Control
The real power of the system comes when the GNSS Metre connects with Trimble 4D Control (T4D) software. T4D brings together data from geodetic and geotechnical sensors into a single platform, delivering:
- Real-time visualisation of ground movement
- Automated reporting and configurable alarms
- Multi-threshold alerting — from early attention flags through to critical alarms
- Inverse velocity calculation for slope stability analysis
For mine site teams managing Trigger Action Response Plans (TARPs), that means the right data reaches the right people the moment something changes — not hours later.
I have tested the results from this instrument, and they are excellent – hard to believe when looking at the antenna, but the unit meets the horizontal and vertical specs. no problem.
Scalable, Cost-Effective and Fast to Deploy
Traditional GNSS monitoring systems have often been cost-prohibitive at scale. The GNSS Metre changes that equation.
Its wireless IoT design eliminates the need for extensive cabling infrastructure, and an intuitive setup means large numbers of sensors can be deployed quickly with minimal training. Whether you’re monitoring a single embankment or instrumenting an entire tailings facility, the system scales to match — and integrates seamlessly with other Trimble monitoring hardware already in the field, including automated total stations, dataloggers, and tiltmetres.
The Bottom Line
Mine monitoring has traditionally meant trading off between coverage, cost, and data frequency. The Trimble GNSS Metre, paired with Trimble 4D Control software, largely eliminates that trade-off — delivering continuous, millimetric-precision data across challenging environments, with hardware that practically looks after itself.
Want to know how the Trimble GNSS Metre could work for your site? Talk to our monitoring specialists today.
