Some rooms are easy to map but hard to clean. A large robot may cover open floor efficiently but struggle under a low cabinet, while a slimmer machine can reach that space but carry less power or water. iRobot's Roomba Duo concept approaches the problem with two cooperating robots rather than one machine that must be good at everything.

The main unit is designed to carry and release a slimmer companion. The two devices can share a map and return to an autonomous dock. That creates a miniature logistics system: one robot decides where it is going, another handles a specialized area, and both must understand where the other has been.

The design raises questions that are useful far beyond cleaning. How do the robots divide a room? How do they avoid repeating the same work? What happens if the smaller unit gets stuck? A map is not enough by itself. The system also needs rules for task assignment, battery management, recovery, and communication.

Students could model the idea with two small vehicles on a paper floor plan. One vehicle could be responsible for open areas and the other for narrow lanes. Teams could compare a fixed division of labor with a dynamic system that assigns the next task based on distance and battery level. The exercise would introduce multi-robot coordination without requiring expensive equipment.

The details in this article come from iRobot's September announcement. As with any newly announced product, classroom discussions should separate advertised features from results that have been independently tested.

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