Fig. 13From: Development of mobile sensor terminals “Portable Go” for navigation in informationally structured and unstructured environmentsThe strategy for expanding the informationally structured environment (white) in the informationally unstructured environment (gray) by Portable Go robots. a All robots are in the informationally structured environment. b Portable Go robots start moving in the informationally unstructured environment. c Portable Go robots stop and start to monitor the assigned areas. Then, a new informationally structured environment is developed. d Personal mobility robot moves in the area monitored by Portable Go robotsBack to article page