Abstract:
PROBLEM TO BE SOLVED: To provide a means for preventing uncontrolled flight or tip-over of an unmanned aerial vehicle (UAV) during take-off. SOLUTION: The UAV includes: a step 302 for receiving a measurement representative of a posture of the UAV from the magnetometer, wherein the measurement is of only one axis of the three-axis magnetometer; a step 304 fpr comparing the measurement to an allowable range of posture; a step 306 for determining that the measurement is not within the allowable range of posture; and a step 308 for performing at least one corrective action for the UAV. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a ducted fan core for housing a wide variety of payloads for an unmanned aircraft. SOLUTION: A ducted fan core 100 includes a frame 110 attached to an engine 120, a gearbox assembly, a fan 140, and a plurality of control vanes 130. A first surface 112 on the frame includes a plurality of connecting sections or electrical traces. The plurality of connecting sections are used for removably attaching a variety of pods holding various payloads. Thus, the wide variety of payloads can be conveyed by using the same unmanned aircraft, simply by removing pods from the fixed core of the aircraft and attaching different pods thereto. These pods are shaped so as to form part of the exterior of the aircraft, and when the pods are attached to the frame, they enhance the characteristics of aerodynamics of the aircraft. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an unmanned air vehicle capable of performing vertical takeoff from and landing on inclined surfaces. SOLUTION: Takeoff and landing modes are added to a flight control system of a Vertical Take-Off and Landing (VTOL) Unmanned Air Vehicle (UAV). The takeoff and landing modes use data available to the flight control system and the VTOL UAV's existing control surfaces and throttle control. As a result, the VTOL UAV can takeoff from and land on inclined surfaces without the use of landing gear mechanisms designed to level the UAV on the inclined surfaces. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PURPOSE: An unmanned aerial vehicle for easy landing is provided to enable easy landing without a parachute or airbag by switching the direction of a propeller upward and controlling the descending velocity thereof. CONSTITUTION: An unmanned aerial vehicle for easy landing comprises a propeller (100), a propeller tower (200), a body (300), main wings (400), auxiliary wings (500), and an actuator. The propeller tower supports the propeller. The body is connected to the propeller tower. The main wings are symmetrical with respect to the horizontal shaft of the body and have a pair of through holes (410). The auxiliary wings are located inside the through holes. The actuator is connected to a reference shaft fixed to the main wings through the auxiliary wings and controls the inclination of the auxiliary wings.
Abstract:
The present invention relates to a vertical landing device for a radio control multi-purpose aircraft having a body part and a wing part, wherein the vertical landing device has a chute having at least one pair of high- flexible guide cords and at least one pair of inflexible guide cords so as to allow the chute to be connected with the body part. The pairs of high-flexible guide cords include a pair of first guide cords connected to an engine cover and a pair of second guide cords connected to a front side wing-connecting bar, and the pair of inflexible guide cords are connected to a rear side wing-connecting bar.
Abstract:
A vertical landing apparatus for a radio control multipurpose aircraft and a landing method using the same are provided to safely land the aircraft at a goal spot without damaging the aircraft. A radio control multipurpose aircraft includes a body section(100), wing sections(200), and a landing unit(300). The landing unit includes a parachute. The parachute and the body section are connected to each other by including at least one pair of highly flexible guide cords and at least one pair of non-flexible guide cords. The highly flexible guide cord includes a first guide cord and a second guide cord. The first and second guide cords are connected to an engine cover and a front main blade connecting rod. The non-flexible guide cord is connected to a rear main blade connecting rod.