Abstract:
The present invention relates to a system and method for automatic launch and landing UAVs (Unmanned Aerial Vehicles). The system comprises a ground station adapted for automatic UAV launching and landing. The ground station comprises: means for communication with UAVs present within a range from the ground station; an arrangement adapted for launching UAVs and for capturing in-flight UAVs, said arrangement having at least one controllable arm; a computing unit arranged to compute a meeting point between the at least one controllable arm and one in-flight UAV based on data communicated between the UAV and the ground station by means of said means for communication; and a control unit arranged to control the at least one arm to capture an in-flight UAV at the meeting point or to launch one UAV. The system is characterized in that the control unit is arranged to control the at least one arm to move a UAV between the meeting point and at least one storage position.
Abstract:
An aircraft system incorporates a first aircraft 48a, 48b having a grappling device 26 including a first gripper 30 with a first actuator 36a and a second gripper 32 with a second actuator 36b. The first gripper and the second gripper are movable between an open and a closed position to engage a hooking device 18 and pivot together to change a capture angle. A first controller 72 receives a command and operates the actuators in response to open and close the first and second grippers of the grappling device. The controller also receives a second command and operates the first and second actuators to pivot the grippers and provide grappling at a range of capture angles. A second aircraft 10, which may be a UAV, incorporates the hooking device 18. The hooking device includes a ring 20 rotatable from the surface and a third actuator 22 to rotate the ring between a stowed and an extended position.
Abstract:
An aircraft capable of thrust-borne flight can be automatically retrieved, serviced, and launched using equipment suitable for use on a small vessel, or a base with similarly limited space or irregular motion. For retrieval, the aircraft drops a weighted cable (2,3), and pulls it at low relative speed into a broad aperture ( l a ,¨ a ) of a base apparatus (5). Continued translation of the aircraft may pull the cable clear of the apparatus, in which case it can continue in free flight and return for another retrieval attempt. Alternatively, the cable will be dragged along guiding surfaces (4) of the apparatus into and through a slot (6) or similar channel, until its free end is captured. The aircraft, having thus become anchored to the base station, is then pulled down by the cable into a receptacle (9). Guiding surfaces of the receptacle adjust the position and orientation of a probe (8) on the aircraft, while directing the probe to mate with a docking fixture. Once mated to the fixture, the cable can be released and stored aboard the aircraft; the aircraft can be automatically shut down; and fueling or other servicing can be completed through appropriate connectors in the docking fixture. The aircraft can remain docked as needed, and when desired, be automatically started and tested in preparation for launch. It can then be released into free flight. A full ground-handling cycle can thus accomplished with simple and economical apparatus. It can be used with low risk of damage, and only moderate piloting accuracy.
Abstract:
An aircraft 1, 101 capable of thrust-borne flight can be automatically retrieved, serviced, and launched using equipment suitable for a small vessel. For retrieval, the aircraft hovers over a base apparatus 6 having one or more rails 5, 105 which bound a space into which the aircraft can safely descend. When the aircraft's measured position and velocity are appropriate, the aircraft descends promptly such that a spanwise component 4, 104 on the aircraft engages the rails. The teeth 8, 108 restrain the aircraft in position and orientation, while the rails bring the aircraft to rest. Articulation of the rails is used to park the aircraft in a servicing station 14. Connections for refueling, recharging, and/or functional checks are made in preparation for launch. Launch is effected by removing connections and restraints and articulating the rails to put the aircraft in an appropriate position and orientation. The aircraft uses its own thrust to climb out of the apparatus into free flight.
Abstract:
Systems and methods for recovering unmanned aircraft and controlling post-recovery motion of the aircraft are disclosed herein. An aircraft recovery system for handling an unmanned aircraft in accordance with one embodiment of the disclosure includes a base portion and an elongated aircraft capture member having a first end movably coupled to the base portion and a second, free end opposite the first end. The aircraft capture member includes a first portion and a second portion at a distal end of the first portion and positioned to intercept an unmanned aircraft in flight. The first and/or second portions are generally flexible. The system further includes an energy capture and dissipation assembly operably coupled to the aircraft capture member and positioned to receive at least a portion of the landing forces from the aircraft.
Abstract:
The invention relates to an anchoring harpoon (1) intended in particular for an aircraft, capable of cooperating with an anchoring grate (2) of a platform, comprising jack means (3) including cylinder means (4) containing mobile piston means (5) provided with a rod (6) that extends beyond the cylinder means, the free end of which includes a harpoon head (7) that is hooked in the grate and comprises retaining fingers (8, 13, 14) that can be moved between a retracted position and an active position by control means (9). The invention is characterised in that the jack means are connected to a pressurised fluid source (30) by means of control means (31) and in that the pressurised fluid source includes a consumable gas cartridge (30).
Abstract:
A system for landing UAV's comprising a slingshot structure (25) that includes a central arm (26) and an axis means (45) installed along the central arm of the structure and wherein it enables the central arm to move around it in addition, the system comprises base means (50) connecting the axis means to a platform (20) at which the system is installable. The system also include a controlled pulling and braking means (55) that connects between lower end of the central arm of the structure and the platform upon which the system is installable and an assembly (35), essentially formed as a substantially 'Y' shape part that is installable unto the top end of the central arm of the structure and a stretchable elastic means (30) installed in a stretched manner at a gap formed between the two arms of the assembly and set to connect with a landing UAV(15). At the landing phase, the controlled pulling and braking means of the system, essentially brakes the motion of the central arm of the structure that is propelled to revolve around the system's axis means, from a time that the UAV forms contact with the elastic means and with it propels the structure to move around the axis means.
Abstract:
The present invention relates to a recovery system for unmanned air vehicles, namely a system for recovering such air vehicles from flight. The system comprises an unmanned air vehicle (10) and recovery apparatus (30), the air vehicle having first coupling means (20) suspended beneath the air vehicle, and the recovery apparatus comprising second coupling means (32). The first and second coupling means engage. The second coupling means is rotatably mounted (52) so as to allow rotation about a substantially vertical axis upon engagement.
Abstract:
Autonomous micro air vehicles (102) surveillance systems are provided. A MAV system of one embodiment includes an MAV and a launch pad (120). The MAV has an engine (103) that is adapted to power the MAV. The launch pad has a starter (128) that is adapted to start the engine in the MAV when the MAV is resting on a launching surface (142) of the launch pad. The launch pad further has a battery (126) to power the starter.