Engineers in Germany are using a wireless, cloud-supported network of sensors to dramatically enhance the safety of rail systems by detecting damage in advance.

The cloud-based sensor system, which is currently being developed in Berlin by the Fraunhofer Institute for Reliability and Microintegration IZM, entails the installation of tiny radio sensors on the axles and undercarriages of trains in order to obtain data on the condition of parts which are susceptible to erosion and…