A Mobile Social Hand Disinfection Robot for Use in Hospitals

Prevention of infectious diseases as the Covid-19 is of essential importance for the well-being of humanity. This is especially so at hospitals, where many vulnerable individuals frequent. Hand disinfection is one of the methods for preventing communicable diseases. In this paper we introduce a new modular mobile service robot designed for hand disinfection in hospitals and other public spaces. It consists of two separable parts: the driving base and the disinfection stand. The base was made in a horseshoe shape which allows it to lift its payload (the stand) near its center of gravity and distribute the weight evenly on its four wheels. The stand is able to function both in conjunction with the base and also autonomously. The whole robot was designed with social interaction in mind to achieve better hand sanitization compliance, which is of essential importance in hospitals for preventing infectious diseases. We conducted a test of how well the robot is able to find and approach people in its vicinity who face different directions. Even though the robot does not achieve its goal position ideally, it always ends up facing the user, which is even more important for starting an interaction than reaching its goal position very precisely.