Explore a 42-minute conference talk on measuring workplace hardness using connected sensors and data visualization. Learn about the objective measurement of physical constraints, aggressive environments, and work rhythms through various sensors like accelerometers, gyroscopes, and temperature sensors. Discover the technologies implemented for data collection, including Arduino, MQTT, and Node-Red, and how they capture worker positioning and environmental information. Delve into data exploitation techniques using InfluxDB TimeSeries database and Grafana Dashboard for visualizing and analyzing physical work conditions and repetitive gestures. Gain insights from technical experts Christophe Jollivet and Sébastien Laporte as they present innovative approaches to understanding and improving workplace conditions through IoT and data-driven solutions.