Nowadays, we encounter three-dimensional metallic lattice structures in numerous artificial constructions, such as stadiums, high-voltage or telecommunications towers, airports, construction sites, pipeline networks in refineries, nuclear power plants, and aerospace constructions. These structures, composed of interconnected bars forming genuine metallic networks, require periodic inspection and maintenance to preserve their good condition and functionality and to prevent their structural stability from being compromised by deterioration. Examples of the required tasks include coating the metallic bars of the structure with protective paints to prevent corrosion, non-destructive inspection to detect possible cracks and welding defects, and tightening threaded joints, among others.

Traditionally, these tasks have been performed by human operators who, equipped with safety mechanisms such as harnesses, have to climb the structure and carry out the aforementioned operations. Despite the possible safety measures that can be adopted, performing these operations is dangerous for humans, who are subjected to significant safety and health risks. In order to avoid these dangers to human operators, the possibility of performing these hazardous tasks at height using robots (autonomous or teleoperated) has been pursued over the past three decades. In this project, the objective is to plan movements that a hybrid robot can perform so that it can navigate through these structures and pass through the structural nodes, attaching itself appropriately to carry out inspection and maintenance tasks.