無人航空機、その使用方法、研究授業レビュー支援システムおよび研究授業レビュー支援方法

摘要

PROBLEM TO BE SOLVED: To provide an unmanned aircraft that is suitable for indoor use.;SOLUTION: An unmanned aircraft 1 includes: a blower 3; and a balloon 4 filled with a gas with a specific gravity that is lower than air. The balloon 4 has buoyancy that is larger than a gravity working on the whole unmanned aircraft 1. The blower 3 can blow air in a direction D1 having a component of an upper direction. The unmanned aircraft 1 can descend with the air blown by the blower 3.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT