Application of optical and textile-based sensors for the detection of fatigue and stress parameters in selected working scenarios

In the course of the technological development and the resulting digitalization within the working world - keyword industry 4.0 - the demands on the worker are increasing. In this context, time and performance pressure are listed as the most frequently mentioned stress factors. As a result, psychological stress and the resulting physical stress symptoms are the main causes of the permanent sick leaves of the past years. In studies, work-related stress was identified as a risk factor for coronary heart disease and hypertension. The perception of stress as well as the response to it are subject to individual biological, psychological and social factors. Using physical markers, such as electrical conduction resistance of the skin, heart rate, various indices of heart rate variability, blood pressure, pupil dilation / expansion, stress can be detected. However, with the standard methods the detection is strongly limited, since it is based on contact-based, near-body sensors. The task of this research project is to establish requirements for sensor systems for stress detection in working life and to systematize them in a profile.