摘要:
An altitude control system for an unmanned aerial vehicle includes a compressor assembly defining a plenum therein, a passive valve assembly coupled to a first portion of the compressor assembly and in fluid communication with the plenum, and an active valve assembly coupled to a second portion of the compressor assembly and in fluid communication with the plenum. A method of controlling an altitude of an unmanned aerial vehicle and an unmanned aerial vehicle are also provided.
摘要:
Innovative new systems and method of operating the systems, wherein the system comprises an airborne platform comprising an unmanned balloon; a payload that is separate from the unmanned balloon; a transceiver; first and second flight termination devices; at least two separate power sources for the first and second flight termination devices; a sensor; a processor; a pump; a valve; and a tether that when broken separates the unmanned balloon and the payload, are disclosed herein.
摘要:
A cargo airship is disclosed. The cargo airship may include a hull configured to contain a gas and at least one propulsion assembly coupled to the airship and including a propulsion device. The cargo airship may further include a payload bay comprising an external cargo area located outside of the hull. The cargo airship may also include a cargo handling system including at least one hoisting mechanism configured to lift cargo into the external cargo area while the airship is hovering.
摘要:
Innovative new systems and method of operating the systems, wherein the system comprises an airborne platform comprising an unmanned balloon; a payload that is separate from the unmanned balloon; a transceiver; first and second flight termination devices; at least two separate power sources for the first and second flight termination devices; a sensor; a processor; a pump; a valve; and a tether that when broken separates the unmanned balloon and the payload, are disclosed herein.
摘要:
A method and system for separating and releasing component parts of a payload of a floating platform in response to a high collision probability is disclosed. The method includes, determining if an in-flight aircraft is within at least a safety zone associated with a floating platform, wherein the floating platform comprises releasably-coupled component parts; and activating, responsive to a determination that the in-flight aircraft is within at least the safety zone, a release mechanism, wherein the release mechanism is configured to uncouple the component parts.
摘要:
A control system for terminating flight of a balloon having a balloon envelope is provided. The control system includes a shuttle that has one or more cutting blades. The cutting blades are configured to cut open the balloon envelope. A tubular track is attached to a section of the balloon envelope. This tubular track has a guiding portion arranged to receive and guide the shuttle along the track. The control system includes a type of releasable ballast attached to the shuttle. When the ballast is released, the ballast is configured to move the shuttle along the tubular track in order to cause at least one of the cutting blades to cut open a portion of the balloon envelope. This allows lift gas to escape from the balloon envelope.
摘要:
This disclosure relates to the use of a method for adjusting an altitude of variable-buoyancy vehicle, such as an aerostatic balloon. The method includes determining a target mass for a variable-buoyancy vehicle, where the target mass is based on a target altitude for the variable-buoyancy vehicle. Additionally, the method includes adding a first mass to the variable-buoyancy vehicle. The mass added is less than a difference between the target mass and a current mass. The method also includes adding a second mass to the variable-buoyancy vehicle in response to a decrease in an internal pressure of the variable-buoyancy vehicle caused by adding the first mass. Further, adding the second mass makes a current mass of the variable-buoyancy vehicle approximately equal to the target mass.
摘要:
A self-righting aerostat (10) is described comprising at least one blimp-shaped body (12), supported by gas and in which a bow and a stern are defined, a plurality of tailplanes (13) having a stabilizing function, a self-righting system provided with a ballast, consisting of liquid, able to be moved through a pump (22) from the bow to the stern of the blimp-shaped body (12) and vice-versa, a system for controlling the trim based upon the actuation of mobile parts (27) of the tailplanes (13) and on propellers driven by motors (28; 29), and a takeoff and recovery system (34) comprising a winch device (35) on which a cable is wound (19) to anchor the aerostat to the ground (10). The self-righting aerostat (10) also comprises, inside the blimp-shaped body (12), at least one connection cable (25) between the stern and the bow of the blimp-shaped body (12) itself, in order to improve the rigidity of shape of the aerostat (10) when it is pulled about in strong winds, which tend to stretch the relative blimp-shaped body (12).