Monitoring Technologies for Rockslide Detection
/The newspaper NZZ recently reported on monitoring rockslides in Switzerland, highlighting how modern technologies can detect and mitigate dangerous rock movements. The companies Geopraevent, Terradata, and InNet mentioned in the article, utilize innovative radar, laser, and seismic technologies. Among many systems they make as well use of sensor devices for LoRaWAN from Decentlab in some of their monitoring solutions.
A project by InNet vividly shows how quickly long-term monitoring can turn into an emergency. In Muotatal, Switzerland, InNet used laser distance sensors to monitor an unstable rock formation. The laser devices used were no larger than a coffee cup and were powered by batteries. Initially planned as a one-year test, the project revealed alarming acceleration of movements within days. In early summer of 2023, a helicopter transported the equipment to the site, where a mast was installed and sensors attached. These sensors, which provide accurate data every ten minutes, offered a compact and cost-effective solution that suited the project’s limited budget.
Wihtin a week of starting measurements, InNet issued a warning of an imminent rockfall. A few weeks later, the rock mass collapsed, covering an alpine pasture and a hiking trail—fortunately without causing any injuries.
This example highlights the critical importance of environmental monitoring sensors. Climate change is exacerbating the situation by increasing the frequency of extreme weather events and accelerating the melting of permafrost, which destabilizes slopes. Technologies like these not only help protect lives but also transportation routes and critical infrastructure.
Devices for natural hazards monitoring: DL-LPW, DL-LID, DL-ATM41