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This paper concerns a robot to assist people in retail shopping scenarios, called the wGO. The robot’s behaviour is based in a vision-guided approach based on user-following. The wGO brings numerous advantages and a higher level of comfort, since the user does not need to worry about controlling the shopping cart. In addition, this paper introduces the wGOs functionalities and requirements to enable the robot to successfully perform personal assistance while the user is shopping in a safe way. A user satisfaction survey is also presented. Based on the highly encouraging results, some conclusions and guidelines towards the future full deployment of the wGO in commercial environments are drawn.

Functionalities and Requirements of an Autonomous Shopping Vehicle for People with Reduced Mobility