Heterogeneous multi-configurable chained microrobot for the exploration of small cavities

In construction it is sometimes necessary to perform inspection and maintenance tasks of small cavities, such as pipes (gas or water) or floor and ceiling sections. But sometimes it is not possible to have access (either in person or with a tool) to these places. Even some of the commercial robots that exist nowadays are not able either, due to its weight, higher diameter or its limited locomotion gaits. In this article the concepts used in heterogeneous multi-configurable chained cm3 microrobots for pipe inspection are expanded to small cavities in general. New locomotion gaits to access these small places are proposed, based on the concepts of modularity, multiconfigurability, heterogeneity and multi-drive locomotion. These new locomotion gaits are specifically designed for heterogeneous modular robots and combine snake-like, inchworm and helicoidal-driven patterns, amongst others.

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