IoT Monitoring Solutions for Geohazard Risk Management-PPT Presentation

PPT Presentation

Pdf Summary

The July 2023 presentation describes Worldsensing’s IoT monitoring solutions for geohazard risk management and early warning. Its systems use low-power, long-range communications to monitor ground and structural movement, including in remote areas with limited power or internet access. The Event Detection Solution helps engineers identify movement early and make timely, data-informed decisions about tailings dams, slopes, embankments, and landslide-prone areas. Tiltmeters can switch from periodic readings to more frequent reporting when thresholds are exceeded.

The GNSS Meter provides hourly, survey-grade positioning, with stated 24-hour aggregated accuracy of 2 mm horizontally and 3 mm vertically. LoRa communications support ranges of up to 10 km and battery-only operation for up to three years. The system integrates with other Worldsensing sensors and can relay data to monitoring software without internet connectivity at the measurement point.

Three case studies illustrate applications:

- <strong>Castellfollit de la Roca, Spain:</strong> Crackmeters, tiltmeters, and other sensors monitor a basalt cliff where rockfalls and slope retreat threaten buildings.
- <strong>Three California dams:</strong> Cameras, tiltmeters, and vibrating-wire loggers were rapidly installed during record snowmelt to track water levels, surface deformation, and site conditions.
- <strong>Sallent, Spain:</strong> GNSS measurements were compared with an existing robotic total station for mine-related subsidence. The technologies showed similar trends; GNSS was less affected by weather, though its vertical readings were noisier. Aggregating GNSS observations reduced noise, and GNSS data were more consistently available during some adverse-weather periods.

Overall, the presentation emphasizes scalable, resilient monitoring networks that support earlier hazard detection and better-informed risk management.

Keywords

IoT monitoring

geohazard risk management

early warning

LoRa communications

GNSS Meter

tiltmeters

tailings dams

landslide monitoring

subsidence monitoring

Worldsensing