The hand-shaped robot, dubbed 'Pepe', is the product of a collaboration between researchers from the University of Glasgow in Scotland and Amrita Vishwa Vidyapeetham University in India.
Pepe was mounted to the wall above a handwashing station at the Wayanad Government Primary School in Kerala, which has around 100 pupils aged between five and 10. A small video screen mounted behind Pepe's green plastic exterior acted as a 'mouth,' allowing researchers to tele-operate the robot to speak to the pupils and draw their attention to a poster outlining the steps of effective handwashing. A set of moving 'eyes' helped bolster the illusion that Pepe was paying attention to the childrens' actions.
The robot helped pupils to wash their hands more effectively and more consistently, boosting their rates of handwashing by 40%. Pupils spent on average twice as long washing their hands after Pepe's arrival. After the intervention, more than 95% of the students could correctly determine when handwashing with soap has to be done — before a meal and after a visit to the toilet.
The outcomes from the research project are described in "Influencing Hand-washing Behaviour With a Social Robot: HRI StudyWith School Children in Rural India," which is to be presented on Global Handwashing Day (Tuesday, October 15) at IEEE RO-MAN 2019, the 28TH IEEE International Conference on Robot and Human Interactive Communication.
Handwashing is one of the most effective defences against the spread of diarrhoea and respiratory infections, which cause the deaths of around 1,300 young children each day around the world — 320 of which are in India alone, according to figures from WaterAid India and the World Health Organisation.
Amol Deshmukh, from the University of Glasgow's School of Computing Science, led the project in partnership with colleagues from Amrita University.
"We chose this particular primary school for our research because the pupils are drawn from scheduled castes and tribes, a segment of the Indian population which is most affected by poor sanitation and hygiene. We believe this is the first social robotics study to try to improve the lives of children like this," Deshmukh says.
"We were delighted by the success of Pepe's visit to this primary school. None of the children had ever interacted with anything like a robot before, but they were excited to interact with this relatively simple machine, which clearly had a positive effect on their efforts to keep their hands clean" he says.
"Social robots could potentially create a positive impact in their lives, but they have rarely been tested with people from rural backgrounds in developing countries. This research helps in identifying a valuable and viable use case for social robots in rural populations in developing countries," Deshmukh says.
"In the future the research will focus on developing autonomous technology for the social robot, so it is capable of interacting with children without any input from humans. We're also keen to begin to carry out wide scale deployments in rural schools to measure effectiveness of this type of social robotics."
The study also followed up with a questionnaire completed by 45 of the pupils who interacted with Pepe.
Rao R. Bhavani from Amrita University says: "AMMACHI (Amrita Multi Modal Applications and Computer Human Interaction) Labs have taken multiple initiatives to address common challenges facing low-income rural communities in India and worldwide using technology."
The project is the second 'social robot' research project conducted by the University of Glasgow and Amrita University. Last year, they introduced a four wheeled robot to help residents of Ayyampathy in southern India carry 20-liter bottles of water from the local well to their homes.
In addition to Deshmukh and Bhavani, the research was carried out by Sooraj K Babu, Unnikrishnan R, Shanker Ramesh, and Parameswari Anitha from Amrita University, India.
School children and teachers from Wayanad, Government Primary School, Kerala, participated in the study.
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