Patent•
Unmanned aerial vehicle
22 Jun 2016-
TL;DR: In this article, an unmanned aerial vehicle (UAV) consisting of an upper body part, a middle body part and a lower body part is described, where the upper body is composed of at least one machine arm, each paddle is attached to the corresponding machine arm through a corresponding motor.
Abstract: The invention relates to an unmanned aerial vehicle which comprises an upper body part, a middle body part and a lower body part, wherein the upper body part is composed of at least one machine arm; at least one paddle is arranged on each machine arm; each paddle is connected to the corresponding machine arm through a corresponding motor; the middle body part is composed of a damping component; the lower body part is composed of a casing; and a controlling component which is connected with the motors are arranged in the casing and is used for controlling the motors to drive the corresponding paddles to rotate. The unmanned aerial vehicle is in a new unmanned aircraft layout manner, and breaks the conventional flight attitude of the unmanned aerial vehicle. According to the unmanned aerial vehicle, vibration generated by the upper body part can be greatly weakened and even to zero through the damping component of the middle body part, and thus flight is more balance.
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Patent•
AT&T1
TL;DR: In this paper, the authors describe a system that receives, by a feed point of a dielectric antenna, electromagnetic waves from a core coupled to the feed point without an electrical return path, and radiates a wireless signal responsive to the electromagnetic waves being received at the aperture.
Abstract: Aspects of the subject disclosure may include, for example, receiving, by a feed point of a dielectric antenna, electromagnetic waves from a dielectric core coupled to the feed point without an electrical return path, where at least a portion of the dielectric antenna comprises a conductive surface, directing, by the feed point, the electromagnetic waves to a proximal portion of the dielectric antenna, and radiating, via an aperture of the dielectric antenna, a wireless signal responsive to the electromagnetic waves being received at the aperture. Other embodiments are disclosed.
330 citations
Patent•
AT&T1
TL;DR: In this paper, a distributed antenna and backhaul system provide network connectivity for a small cell deployment using high-bandwidth, millimeter-wave communications and existing power line infrastructure, rather than building new structures, and installing additional fiber and cable.
Abstract: A distributed antenna and backhaul system provide network connectivity for a small cell deployment. Rather than building new structures, and installing additional fiber and cable, embodiments described herein disclose using high-bandwidth, millimeter-wave communications and existing power line infrastructure. Above ground backhaul connections via power lines and line-of-sight millimeter-wave band signals as well as underground backhaul connections via buried electrical conduits can provide connectivity to the distributed base stations. An overhead millimeter-wave system can also be used to provide backhaul connectivity. Modules can be placed onto existing infrastructure, such as streetlights and utility poles, and the modules can contain base stations and antennas to transmit the millimeter-waves to and from other modules.
298 citations
Patent•
AT&T1
TL;DR: In this article, a distributed antenna system is provided that frequency shifts the output of one or more microcells to a 60 GHz or higher frequency range for transmission to a set of distributed antennas.
Abstract: A distributed antenna system is provided that frequency shifts the output of one or more microcells to a 60 GHz or higher frequency range for transmission to a set of distributed antennas. The cellular band outputs of these microcell base station devices are used to modulate a 60 GHz (or higher) carrier wave, yielding a group of subcarriers on the 60 GHz carrier wave. This group will then be transmitted in the air via analog microwave RF unit, after which it can be repeated or radiated to the surrounding area. The repeaters amplify the signal and resend it on the air again toward the next repeater. In places where a microcell is required, the 60 GHz signal is shifted in frequency back to its original frequency (e.g., the 1.9 GHz cellular band) and radiated locally to nearby mobile devices.
296 citations
Patent•
AT&T1
TL;DR: In this article, a coupler couples the first electromagnetic wave to a single wire transmission medium having an outer surface, to forming a second electromagnetic wave that is guided to propagate along the outer surface of the single-wire transmission medium via at least one guided wave mode that includes an asymmetric or non-fundamental mode having a lower cutoff frequency.
Abstract: Aspects of the subject disclosure may include, for example, a transmission device that includes a transmitter that generates a first electromagnetic wave to convey data. A coupler couples the first electromagnetic wave to a single wire transmission medium having an outer surface, to forming a second electromagnetic wave that is guided to propagate along the outer surface of the single wire transmission medium via at least one guided wave mode that includes an asymmetric or non-fundamental mode having a lower cutoff frequency. A carrier frequency of the second electromagnetic wave is selected to be within a limited range of the lower cutoff frequency, so that a majority of the electric field is concentrated within a distance from the outer surface that is less than half the largest cross sectional dimension of the single wire transmission medium, and/or to reduce propagation loss. Other embodiments are disclosed.
285 citations
Patent•
AT&T1
TL;DR: In this paper, a system for receiving first and second electromagnetic waves via a transmission medium without utilizing an electrical return path was described, and inducing second electromagnetic signals at the interface of the transmission medium.
Abstract: Aspects of the subject disclosure may include, for example, a system for receiving first electromagnetic waves via a transmission medium without utilizing an electrical return path, and inducing second electromagnetic waves at an interface of the transmission medium without the electrical return path. In an embodiment, the first and second electromagnetic waves have a non-optical frequency range. Other embodiments are disclosed.
285 citations
References
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Patent•
17 Oct 2013
TL;DR: In this article, an HUAV has an arm assembly configured to support a propeller in such a way that propeller drag of the propeller is decoupled from yaw torque requirements associated with the hovering UAV.
Abstract: In an aspect, an apparatus includes a hovering unmanned aerial vehicle (HUAV). The HUAV includes an arm assembly configured to support a propeller in such a way that propeller drag of the propeller is decoupled from yaw torque requirements associated with the hovering unmanned aerial vehicle. In another aspect, an apparatus includes an HUAV that has an arm assembly that is field-foldable relative to the HUAV between a flight-ready state and a folded state. In another aspect, an apparatus includes an HUAV having an arm assembly that is keyed in such a way as to facilitate field-assembly relative to the HUAV.
111 citations
Patent•
04 Mar 2015
TL;DR: In this article, a multi-rotor unmanned aerial vehicle (UAV) for fast surveying and a surveying method of the UAV is described, which belongs to the technical field of aviation surveying, and can be used for determining the relation between the shooting height and the imaging proportion by analyzing camera lens parameters.
Abstract: The invention discloses a multi-rotor unmanned aerial vehicle for fast surveying and a surveying method of the multi-rotor unmanned aerial vehicle, and belongs to the technical field of aviation surveying. The multi-rotor unmanned aerial vehicle comprises a rack, flight lifting mechanisms, a cloud deck mechanism and a control mechanism, wherein four plane arms extend out from the rack along a plane body, the lower part of the plane body is provided with foot stools, the plane arms and the foot stools are of foldable structures; and the flight lifting mechanisms are arranged at tail ends of the four plane arms, the cloud deck mechanism is mounted at the bottom of the unmanned aerial vehicle body through a mounting rod; the cloud deck mechanism is provided with a camera and is used for regulating an optical axis of the camera to be always perpendicular to the ground; and the control mechanism is used for controlling the unmanned aerial vehicle to fly to the appointed height and regulating the overturn of the cloud deck mechanism. The surveying method disclosed by the invention can be used for determining the relation between the shooting height and the imaging proportion by analyzing camera lens parameters, and then setting the flight line of the unmanned aerial vehicle. Through the adoption of the unmanned aerial vehicle, the surveying result can be fast obtained, and the surveying precision and efficiency are high.
42 citations
Patent•
28 Oct 2015
TL;DR: In this paper, a downwards foldable-type multi-rotor wing unmanned aerial vehicle (UAV) consisting of a power device (200), a camera shooting device (300), a cell system (400), a control circuit (600), a plurality of support arms (110), a central mounting seat (120), and a locking component (150), was presented.
Abstract: The invention discloses a downwards foldable-type multi-rotor wing unmanned aerial vehicle (1000) which comprises a power device (200), a camera shooting device (300), a cell system (400), a control circuit (600), a plurality of support arms (110), a central mounting seat (120) and a locking component (150), wherein the power device (200), the camera shooting device (300) and the cell system (400) are connected with the control circuit (600) separately; the support arms (110) are rotationally connected onto the central mounting seat (120); the locking component (150) is used for locking all the support arms (110) on the central mounting seat (120) simultaneously when the support arms (110) are unfolded. As the support arms are rotationally connected onto the central mounting seat and can be folded downwards, the size of the unmanned aerial vehicle is reduced to the great extent.
15 citations
Patent•
02 Mar 2016
TL;DR: In this paper, a multi-rotor unmanned aerial vehicle (UAV) consisting of a vehicle frame, a plurality of rotor sets and a power device is described, and a variable pitch device is fixed to each rotor set correspondingly to control the pitch of the rotors in the rotor set.
Abstract: The invention discloses a multi-rotor unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles. The multi-rotor unmanned aerial vehicle comprises a vehicle frame, a plurality of rotor sets and a power device. The rotor sets are rotatably fixed to the vehicle frame, and the power device is movably connected with each rotor set correspondingly. The power device having the oil drive characteristic is arranged to provide power for flying of the unmanned aerial vehicle, combustion substances which are injected into the power device in advance are combusted to generate mechanical kinetic energy so as to drive rotors in each rotor set correspondingly connected with the power device to rotate, and a variable-pitch device is fixed to each rotor set correspondingly to control the pitch of the rotors in the rotor set. A traditional electric multi-rotor unmanned aerial vehicle structure adopting batteries, electronic speed controllers and other electric modes for supplying electricity so as to provide power for rotation of rotors is replaced, and the multi-rotor unmanned aerial vehicle has the characteristics of being long in endurance time and high in bearing capacity.
12 citations
Patent•
18 Nov 2015
TL;DR: In this article, a six unmanned aerial vehicle in aviation UAV field, circuit control system on including fuselage, camera subassembly and locating the fuselage is described, the camera subassembles includes infrared thermal imaging camera and cloud platform camera, border toward the outer horn that forms more than the six roots of sensation that extends of fuselage base.
Abstract: The utility model relates to a six unmanned aerial vehicle in aviation unmanned aerial vehicle field, circuit control system on including fuselage, camera subassembly and locating the fuselage, the camera subassembly includes infrared thermal imaging camera and cloud platform camera, border toward the outer horn that forms more than the six roots of sensation that extends of fuselage base, the motor sub -assembly of taking the rotor is installed to the end of horn, the antidetonation device that be used for install camera cloud platform is equipped with in the below of fuselage base, this antidetonation device includes installing support and mounting panel, be equipped with the shock attenuation ball between mounting panel and installing support, downwardly extending has the rotation axis at the mounting panel, the middle -end and the end of rotation axis are connected with first roll axle and second roll axle respectively, cloud platform camera and infrared thermal imaging camera are installed respectively on first roll axle bed and second roll axle bed. The utility model discloses simple structure, flight are stabilized, the shockproof effect is good, and can shoot at the weather of night or grey haze does not influence its shooting effect yet.
11 citations