Internet-of-Things-Based Geotechnical Monitoring Boosted by Satellite InSAR Data

Abstract

Landslides, often a side effect of mining activities, pose a significant risk to humans and infrastructures such as urban areas, power lines, and dams. Operational ground motion monitoring can help detect the spatial pattern of surface changes and their evolution over time. In this technical note, a commercial, cost-effective method combining a network of geotechnical surface sensors with the InSAR data was reported for the first time to accurately monitor surface displacement. The correlation of both data sets is demonstrated in the Gediminas Castle testbed, where slope failure events were detected. Two specific events were analyzed, and possible causes proposed. The combination of techniques allows one to detect the precursors of the events and characterize the consequences of the failures in different areas in proximity to the castle walls, since the solution allows for the confirmation of long-term drifts and sudden movements in real time. The data from the in situ sensors were also used to refine the satellite data analysis. The results demonstrate that not all events pose a direct threat to the safety of the structure monitored.

Study on the Evolution Law of Overlying Strata Structure in Stope Based on “Space–Air–Ground” Integrated Monitoring Network and Discrete Element

“…The "space-air-ground" integrated monitoring network coordinated using InSAR, UAV, and GNSS technologies was used in the study area. Furthermore, Internet of Things (IoT)-based monitoring systems are largely used for determining geotechnical information [30]. IoT systems supported by wireless networks can be used to gather, move, and process land displacement data in the mining environments.…”

“…The entire environment is monitored using various sensors that collect different types of data. In fact, IoT devices represent a network of geotechnical surface sensors (as shown in Figure 2) that is responsible for collecting data without human intervention [30]. The devices are connected to a centralized internet-enabled computer that is used to store data.…”

SEMUS - An Open-Source RF-Level SAR Emulator for Interference Modelling in Spaceborne Applications

“…SAR is based on radar technology, which is capable of sensing under extreme weather conditions such as rain, clouds, and volcanic ash. Recently, the involvement of satellites, and specifically SAR, in Earth observation, object detection and recognition [1], [2], data communication [3], Internetof-Things (IoT) [4], and more is rapidly increasing. Therefore, the launch of more satellites and especially space-borne SAR [5]- [7] has dramatically increased and is continuously growing.…”

SEMUS - An Open-Source RF-Level SAR Emulator for Interference Modelling in Spaceborne Applications

“…SAR is based on radar technology, which is capable of sensing under extreme weather conditions such as rain, clouds, and volcanic ash. Recently, the involvement of satellites, and specifically SAR, in Earth observation, object detection and recognition [1], [2], data communication [3], Internetof-Things (IoT) [4], and more is rapidly increasing. Therefore, the launch of more satellites and especially space-borne SAR [5]- [7] has dramatically increased and is continuously growing.…”