Polygon-based Random Tree Search Algorithm for a Size-Changing Robot

Fig. 1.  Summary figure of the study: (a) The octahedron shape VTT; (b) Path planning through the narrow passage; (c) Locomotion simulation through the narrow passage. We proposed the Polygon-based Random Tree (PRT) search algorithm for path planning of the Variable Topology Truss (VTT) system [1]. PRT search algorithm finds the path to the goal …

Reconfiguration Solution of a Variable Topology Truss: Design and Experiment

Fig. 1. Conceptual images of the VTT performing a search and rescue mission on a disaster site. (a) Locomotion; (b) arriving at the destination; (c) the master node grasping the target truss; (d) moving of the target truss; (e) finishing reconfiguration; (f) shoring up.   VTT comprises “members,” and “nodes.” Nodes are located at the …

Polygon-based Random Tree Search Planning for Variable Geometry Truss Robot

Variable Topology Truss (VTT) is an improved Variable Geometry Truss that can change its topology. We designed the VTT as an octahedron shape by considering topology reconfiguration. The most important task of VTT is locomotion to a random goal position. Previously we used Rapid Random Tree (RRT) to find a trajectory of the center of …