Improving Human-Robot Interaction in the Manufacturing Industry

April, 2023

The number of industrial robots in manufacturing companies increases every year. These new work colleagues relieve factory workers from monotonous, hard work and help companies, especially in high-wage countries, to stay competitive by increasing their productivity.

In our research, we test and implement user- and context-aware smart robot systems which improve acceptance by human collaborators in real-time and non-intrusively. This strengthens desirable cooperations between humans and robots in day-to-day operations.

Potentials and challenges associated with leveraging robots in industrial manufacturing

As mentioned in the outline of this article, leveraging robots in industrial manufacturing can help companies realize multiple benefits such as relieving workers from hard and monotonous work and increasing productivity. 

However, the installation of such technical devices raises several questions. Even though robots support companies’ profitability, factory workers might see robots as opponents that take away their jobs. Therefore, successful collaborations between humans and robots require safety precautions, trust, and a certain level of enjoyability - things which overall strengthen the acceptance of robots as teammates.

Human acceptance of articulated robots used in industrial manufacturing

Unlike humanoid robots, articulated robots cannot interact with humans using human characteristics such as voice, gaze, or faces. As compared to humanoid robots articulated robots therefore possess a small range of options for interacting with humans and gain their trust.

In our research, we therefore investigate how articulated robot arms needs to behave to increase worker acceptance, based exclusively on their movement behavior.

Our findings demonstrate that by modulating certain movement parameters, human perception and acceptance can be influenced, even without users explicitly noticing. To measure the effect of different robot behaviors, we not only use self-reported responses, but also physiological and behavioral responses such as heart rate, pupil dilation, proxemics, and how they relate to static individual differences like gender, age or prior experience with robots.

Strengthening human-robot collaborations with personalized smart robot systems

Based on the findings from our research, we test and implement smart robot systems that detect users’ characteristics and states, and adapt to the individual user’s specific preferences at run time.

The use of our user- and context-aware robot systems improves acceptance in real-time and non-intrusively, strengthening desirable cooperations between humans and robots in actual day-to-day operations.