At the Hanover Trade Fair from April 23 – 27, 2018, Fraunhofer will demonstrate the prototype of a new cognitive system for the predictive maintenance of production facilities. Intelligent battery-powered acoustic sensors process audio signals from machines and systems on the spot. From the information that is forwarded wirelessly to an evaluation unit, it is possible to draw conclusions about the condition of the production facilities and to avoid possible damage. Industrial customers benefit from a cost-effective, scalable and data-secure Industrie 4.0 solution that minimizes downtime.