Surrogate Shopping System : Experience of Semi-Onsite Shopping under the Dual-Task Situation

We propose a “surrogate shopping system” allow- ing users to shop in stores while performing tasks at home. A mobile robot with a robotic arm and camera enables users to view both home and store environments via a head-mounted display, performing household and shopping tasks simultane- ously. We compared two interaction methods: a master-slave arm manipulation and a laser pointer-based item selection. The study showed a preference for the pointing method due to its usability in a dual-task situation, though the master-slave method allowed for more detailed shopping.