Designer Olga Kalugina defines her Scarab as a "robot-harverster for pedestrian areas." I define it as a potential catastrophe of planetary proportions, to happen when they become sentient and start cutting legs and chopping fallen human bodies.
The design, however, is pretty. It also makes sense:
Robot is created for gathering rubbish from street territories of shopping centers. Robot can gather big rubbish using manipulators. Two web cameras and sensing length element help to make estimate of the territory and find where the rubbish is. Scope of small rubbish creates by two diagonal sweeper-collectors, that sweep just close to the edge. Tank is put away from robot automatically.