3D environment mapping and self-position estimation by a small flying robot mounted with a movable ultrasonic range sensor

Autor: Kazuya Nakajima, Chinthaka Premachandra, Kiyotaka Kato
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of Electrical Systems and Information Technology, Vol 4, Iss 2, Pp 289-298 (2017)
Druh dokumentu: article
ISSN: 2314-7172
DOI: 10.1016/j.jesit.2017.01.007
Popis: The light weight of ultrasonic sensors makes them useful for collecting environment information from mobile robots. Ultrasonic sensors are generally used in a circular formation in surface-moving robots, but this is not suitable for small flying robots, which require small size and light weight. Here we created a movable ultrasonic range sensor by combining a small, lightweight servomotor and a single ultrasonic range sensor. This sensor could perform 360° measurements of the distance between objects and the robot. We furthermore constructed a measurement system to perform 3D environment mapping and self-localization by equipping a small flying robot with this movable ultrasonic range sensor and a ground-facing ultrasonic range sensor for altitude measurements. We verified the system by means of a flight test and found that 3D environment mapping and self-localization were realized in real time.
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