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Title: Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid

Abstract

A method for determining geolocation of a UAV near a power grid includes detecting, via a transceiver, a carrier signal transmitted from a first grid node to identify the node's fixed geolocation. A response signal may be transmitted from a second grid node in response to the carrier signal to identify a fixed geolocation of the second grid node, or the UAV may process the carrier signal. A processor determines time-of-flight of the carrier signal, e.g., using the response signal, and derives the UAV's geolocation using the time-of-flight. Determining time-of-flight may include referencing a lookup table indexed by time-of-arrival at the transceiver of the modulated carrier and response signals. A timestamp may indicate time-of-transmission of the carrier and response signals, respectively. Deriving geolocation may include subtracting time-of-transmission of the response signal from that of the carrier signal. A system includes the processor and transceiver.

Inventors:
;
Issue Date:
Research Org.:
National Aeronautic and Space Administration (NASA), Washington, DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1823877
Patent Number(s):
10983223
Application Number:
16/045,076
Assignee:
United States of America as Represented by the Administrator of NASA (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B64 - AIRCRAFT B64C - AEROPLANES
G - PHYSICS G01 - MEASURING G01C - MEASURING DISTANCES, LEVELS OR BEARINGS
Resource Type:
Patent
Resource Relation:
Patent File Date: 07/25/2018
Country of Publication:
United States
Language:
English

Citation Formats

Moore, Andrew J., and Dorsey, Scott B. Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid. United States: N. p., 2021. Web.
Moore, Andrew J., & Dorsey, Scott B. Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid. United States.
Moore, Andrew J., and Dorsey, Scott B. Tue . "Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid". United States. https://www.osti.gov/servlets/purl/1823877.
@article{osti_1823877,
title = {Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid},
author = {Moore, Andrew J. and Dorsey, Scott B.},
abstractNote = {A method for determining geolocation of a UAV near a power grid includes detecting, via a transceiver, a carrier signal transmitted from a first grid node to identify the node's fixed geolocation. A response signal may be transmitted from a second grid node in response to the carrier signal to identify a fixed geolocation of the second grid node, or the UAV may process the carrier signal. A processor determines time-of-flight of the carrier signal, e.g., using the response signal, and derives the UAV's geolocation using the time-of-flight. Determining time-of-flight may include referencing a lookup table indexed by time-of-arrival at the transceiver of the modulated carrier and response signals. A timestamp may indicate time-of-transmission of the carrier and response signals, respectively. Deriving geolocation may include subtracting time-of-transmission of the response signal from that of the carrier signal. A system includes the processor and transceiver.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {4}
}

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patent, August 2019


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patent-application, October 2017


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patent-application, December 2015


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patent-application, October 2015


Image-Based Localization of Ultraviolet Corona
patent-application, November 2017


UAV power line position and load parameter estimation
patent, May 2015


Aerial vehicle navigation method
patent, June 2019


Compositions and methods for diagnosis and prognosis of colorectal cancer
patent-application, October 2017