Abstract:
Methods of manufacturing and operating a solar powered aircraft having segmented wings that can be reconfigured during flight to optimize collection of solar energy are described. The aircraft have rigid construction that is resistant to inclement weather and is configured to rely on free flight control at high altitude and under conventional conditions, thereby providing flight duration in excess of 2 months. The aircraft is particularly suitable for use as part of a telecommunications network.
Abstract:
Systems and methods for mitigating the effects of atmospheric conditions such as rain, fog, cloud in a broadband access system using drone/UAVs. In one embodiment, terminal and drone radio and transmission medium fixture sub-systems comprise multiple transmission media. In one embodiment, in response to changes in atmospheric conditions the drone radio sub-system switches transmission medium to reduce the effects of atmospheric conditions. In another embodiment, the terminal and drone radio sub-systems equalize the data rates among terminals in response to changes in atmospheric conditions observed by different terminals. In another embodiment, the drone radio sub-system adjusts the transmit power on the downlink to different terminal according to fading due to atmospheric conditions on each link.
Abstract:
The invention relates to a drone comprising: two contra-rotating annular propellers (2, 4) defining a plane therebetween which is referred to as an equatorial plane and is assumed to be horizontal, means for driving the propellers, a load arranged below the equatorial plane, and means (20) for moving the load relative to the equatorial plane, an enclosure referred to as an upper enclosure (6) filled with a gas or a gaseous mixture having a density of less than 1 and arranged essentially above the equatorial plane, and an enclosure referred to as a lower enclosure (8) filled with a gas or a gaseous mixture having a density of less than 1 and arranged essentially below the equatorial plane, the load being placed inside the lower enclosure.
Abstract:
Aspects of the disclosure relate to filling and lifting high altitude balloons. For instance, one example system for lifting and filling a balloon having a balloon envelope includes an apparatus for use with the balloon envelope. The apparatus includes a load line, a fill tube having a hollow portion nested within the load line and a termination member attached to the fill tube and load line. The load line is configured to lift the balloon envelope during inflation. The fill tube extends through the load line and is configured to allow lift gas to pass through the hollow portion. The termination member is configured to mate with an opening in the balloon envelope so that lift gas can pass through the hollow portion of the fill tube and into the opening in the balloon envelope.
Abstract:
Embodiments of methods and apparatus for providing distributed airborne wireless communications are provided herein. In some embodiments, a communication fleet includes: an airborne communication payload subdivided into multiple payload sections; and a plurality of airborne platforms each including a payload section, wherein each airborne platform comprises an airframe, a propulsion system, a power system, and flight control electronics, wherein the propulsion system is configured to provide propulsion power and thrust to maintain level flight, ascend, descend and maneuver the airborne platform, wherein the power system provides electrical power to the propulsion system, the flight control electronics, and the payload section, and wherein the flight control electronics provide capability to control a position, speed, and flight pattern of the airborne platform.
Abstract:
Systems and methods for mitigating the effects of atmospheric conditions such as rain, fog, cloud in a broadband access system using drone/UAVs. In one embodiment, terminal and drone radio and transmission medium fixture sub-systems comprise multiple transmission media. In one embodiment, in response to changes in atmospheric conditions the drone radio sub-system switches transmission medium to reduce the effects of atmospheric conditions. In another embodiment, the terminal and drone radio sub-systems equalize the data rates among terminals in response to changes in atmospheric conditions observed by different terminals. In another embodiment, the drone radio sub-system adjusts the transmit power on the downlink to different terminal according to fading due to atmospheric conditions on each link.
Abstract:
An aerial vehicle comprises an elongate envelope within which are at least one first compartment for holding a lighter than air gas and at least one second compartment for holding atmospheric air and said at least one second compartment having an inlet and an outlet and at least one pair of wings extending laterally from the envelope; said wings being planar units with a leading and trailing edge, the width of the wings from their leading edges to their trailing edges being substantially less than the length of the envelope with airfoil portions fitted between the leading and trailing edges of the wing: the top and bottom of the wings are mirror images of one another; in which forward motion of the vehicle is obtainable without trust through alternate diving and climbing motion.
Abstract:
An aerial unit, a method and a system are provide, the system includes a ground unit; an aerial unit and a connecting element arranged to connect the ground unit to the aerial unit. The ground unit may include a connecting element manipulator, a ground unit controller for controlling the connecting element manipulator; and a ground unit location sensor arranged to generate ground unit location information indicative of a location of the ground unit. The wherein the aerial unit may include a first propeller, a frame, a first propeller motor, at least one steering element; and an aerial unit location sensor arranged to generate aerial unit location information indicative of a location of the aerial unit. At least one of the ground unit and the aerial unit includes a controller that is arranged to control, at least in response to a relationship between the aerial unit location information and the ground unit location information, at least one of the first propeller motor and the at least one steering element to affect at least one of the location of the aerial unit and an orientation of the aerial unit.
Abstract:
Disclosed embodiments relate to a combined shipping container and balloon deployment system for deploying balloons into a balloon network. Such a shipping container may allow one or more balloons to be transported to a desired launch location, and then launched directly from the shipping container.
Abstract:
A system that includes a ground unit that includes: a takeoff and landing platform; a landing and takeoff assisting module; and a housing. The takeoff and landing platform is arranged to hold and support an aerial unit during a first part of a landing process of the aerial unit and a first part of takeoff process of the aerial unit. The aerial unit is coupled to the ground unit via a connecting element. The effective length of the connecting element increases during the takeoff process and decreases during the landing process. The landing and takeoff assisting module is coupled to the takeoff and landing platform and is arranged to (a) lower the takeoff and landing platform into the housing during a second part of the landing process and (b) elevate the takeoff and landing platform during a second part of the takeoff process.