Korea Aerospace Research Institute

Daejeon, South Korea

Korea Aerospace Research Institute

Daejeon, South Korea

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Patent
Korea Aerospace Research Institute | Date: 2017-03-22

The present invention introduces a sphere magnetic levitation system having magnetic aligning devices that magnetically align the position of a sphere levitated by electromagnets provided on the periphery of the sphere according to whether the sphere is levitated, and a method of operating the sphere magnetic levitation system. The sphere magnetic levitation system includes: a sphere; a plurality of electromagnets symmetrically positioned about the sphere and spaced apart from the sphere at equal distances; and a plurality of magnetic-aligning devices provided around the sphere, and coming into contact with the sphere or separated from the sphere by a predetermined distance according to the modes of the sphere magnetic levitation system. The system is operated in one mode from among: an idle mode, in which the magnetic-aligning devices are in direct contact with and support the sphere; and an operation mode, in which the magnetic-aligning devices are separated from the sphere and the sphere is levitated and rotated.


An apparatus for containing and charging an unmanned VTOL aircraft 300, comprising a post 200 placed on a ground and at least one lateral fastening hole 210 formed in a side of the post, and configured such that a pole 340 of the unmanned VTOL aircraft is inserted and fastened into the lateral fastening hole, wherein an entrance of the lateral fastening hole is formed in a cone shape, and thus the pole of the unmanned VTOL aircraft is easily inserted into the lateral fastening hole during fastening of the unmanned VTOL aircraft. The lateral fastening hole is further configured such that target- and cross-shaped LED/IR lights are lit in order to guide the unmanned VTOL aircraft through automatic insertion via vision of the unmanned VTOL aircraft.


Patent
Korea Aerospace Research Institute | Date: 2016-11-03

Provided is an unmanned aerial vehicle that broadcasts a route and future location information of the unmanned aerial vehicle within preset coverage based on sensing data and current location information of the unmanned aerial vehicle. The unmanned aerial vehicle includes a calculator configured to calculate a predicted route and second location information of the unmanned aerial vehicle corresponding to a preset period of time based on first location information and sensing data; and a transmitter configured to periodically broadcast a first notification signal that includes the first location information, the predicted route, and the second location information.


Patent
Korea Aerospace Research Institute | Date: 2016-03-03

An apparatus for coding a plurality of packets in a multi-antenna system, the apparatus including a processor configured to determine space-time codes of the plurality of packets sequentially from a subsequent packet to maximize an average throughput of the plurality of packets, and a transmitter configured to transmit the plurality of packets to an antenna, is provided.


Patent
Korea Aerospace Research Institute | Date: 2016-04-14

A landing receiving apparatus for aircraft landing, and a control method thereof are provided, in which the landing receiving apparatus includes a flight management system (FMS) which is inputted with, by a user, destination airport, destination runway, and a receiver mode, a data storage portion which stores approach path data for landing of the aircraft; a receiver portion which calculates aircraft position information by using Global Navigation Satellite System (GLASS) signals and Satellite-Based Augmentation System (SBAS) signals transmitted from an antenna portion, when a receiver mode inputted by a user is a GNSS/SBAS combination mode, and a landing guidance information generating portion which generates landing guidance information by using approach path data corresponding to a destination airport and a destination runway inputted by the user, and the aircraft position information, and transmits the generated landing guidance information to the FMS.


Patent
Korea Aerospace Research Institute | Date: 2016-08-18

A testing apparatus for Scramjet engine is capable of preventing breakage of liners in a high-pressure and high-temperature environment in which pressure is 10 Mpa or above and temperature is 1800 K or above. To this end, the testing apparatus for Scramjet engine includes a pipe that endures high-pressure environment, a first liner in a tubular shape, being provided within the pipe, and a second liner in a tubular shape, being provided within the pipe, in which an outer circumference of the second liner is overlapped with an inner circumference of a rear end of the first liner.


Patent
Korea Aerospace Research Institute | Date: 2016-11-17

Provided are a method and a system for an inverse chirp-z transformation, and more particularly, a method and a system for an inverse chirp-z transformation having improved availability as compared to conventional Inverse Discrete Fourier Transform (IDFT) or Inverse Fast Fourier Transform (IFFT) because a start time of an output signal and an interval between samples are freely adjustable in obtaining a signal on a time domain by performing an inverse transformation for any spectrum signal on a frequency domain.


Patent
Korea Aerospace Research Institute | Date: 2016-08-07

Disclosed herein is an apparatus for remote sensing using a drone. An apparatus for remote sensing using a drone includes: a drone station which communicates with a server through a satellite and includes a containment portion at an upper portion and a post portion at a lower portion; and a drone which is contained in a containment portion of the drone station and communicates with the drone station, and further includes: a solar panel which is installed at the drone station and converts solar energy into electric energy; an capacitor which is installed at the drone station and stores electric energy generated by the solar panel; and a charging container access deck which is installed at the containment portion and charges the drone.


Patent
Korea Aerospace Research Institute | Date: 2017-06-07

Provided is a multi-stage poppet valve including: a flow pipe (10) in which a channel through which a fluid flows is formed; a fixing part extended inwardly from an inner peripheral surface of the channel of the flow pipe, and having a first channel (110) formed therein, the first channel being hollowed in a vertical direction and having the fluid flowing therethrough; a main valve part (200) disposed on the fixing part, having a second channel (210) formed at the center of an inner portion thereof, and vertically moved by force acting in the vertical direction to open and close the first channel, the second channel (210) having the fluid flowing therethrough; and an auxiliary valve part (300) vertically moved in the second channel (210) by force acting in the vertical direction to open and close the second channel, thereby controlling a flow rate of the fluid passing through the second channel (210).


An apparatus and method for containing and charging an unmanned VTOL aircraft are disclosed. The apparatus for containing and charging an unmanned VTOL aircraft includes a post, an extended member, a cover, a fastening unit, and a charging unit. The post is placed on a ground. The extended member is connected to the post. The cover is provided on the extended member, and is configured to be opened or closed in order to contain and protect the unmanned VTOL aircraft. The fastening unit is provided in the cover, and is configured to fasten the unmanned VTOL aircraft. The charging unit is provided in the fastening unit, and is configured to charge the unmanned VTOL aircraft.

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