[특허]System and method for acoustic signature health monitoring of unmanned autonomous vehicles (UAVS)

The Boeing Company

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특허 상세정보

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System and method for acoustic signature health monitoring of unmanned autonomous vehicles (UAVS)

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01M-017/00 B64C-013/20
미국특허분류(USC)	701/031.4; 244/190
출원번호	US-0867027 (2013-04-19)
등록번호	US-8775013 (2014-07-08)
발명자 / 주소	Smailus, Thomas O.
출원인 / 주소	The Boeing Company
인용정보	피인용 횟수 : 4 인용 특허 : 0

초록
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There is provided a method and system for acoustic signature health monitoring of an unmanned autonomous vehicle (UAV). The method positions an acoustic signature health monitoring system proximate to and off-board a UAV to be monitored for mechanical health of one or more sound producing structures. The method obtains and analyzes with the system a baseline acoustic signature for each of the sound producing structures, and transmits each baseline acoustic signature to a data processing system for processing. The method obtains and analyzes one or more subsequent acoustic signatures for each of the sound producing structures, and transmits the one or more subsequent acoustic signatures to the data processing system. The method compares the processed baseline acoustic signature with the one or more processed subsequent acoustic signatures for the sound producing structures, in order to detect any change in the processed baseline acoustic signature over time.

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1. A method for acoustic signature health monitoring of an unmanned autonomous vehicle (UAV), the method comprising the steps of: positioning an acoustic signature health monitoring system proximate to and off-board an unmanned autonomous vehicle (UAV) to be monitored for mechanical health of one or more sound producing structures of the UAV;obtaining and analyzing with the acoustic signature health monitoring system off-board the UAV a baseline acoustic signature for each of the one or more sound producing structures of the UAV;transmitting with the acoustic signature health monitoring system each baseline acoustic signature to a data processing system for processing;obtaining and analyzing with the acoustic signature health monitoring system off-board the UAV one or more subsequent acoustic signatures for each of the one or more sound producing structures of the UAV;transmitting with the acoustic signature health monitoring system each of the one or more subsequent acoustic signatures to the data processing system for processing; and,comparing the processed baseline acoustic signature with the one or more processed subsequent acoustic signatures for each of the one or more sound producing structures of the UAV, in order to detect any change in the processed baseline acoustic signature over time. 2. The method of claim 1 wherein the step of positioning the acoustic signature health monitoring system comprises positioning the acoustic signature health monitoring system proximate to and off-board the UAV at a location comprising one of a launch site, a taxiway, a runway, an air strip, a landing strip, a terminal, an operations facility, a maintenance facility, and a factory. 3. The method of claim 1 wherein the step of positioning the acoustic signature health monitoring system comprises positioning a portable acoustic signature health monitoring system, or positioning a permanent acoustic signature health monitoring system. 4. The method of claim 1 wherein the steps of obtaining and analyzing comprise using an acoustic signature capture and monitoring subsystem and an analysis subsystem, both of the acoustic signature health monitoring system, to obtain and analyze the baseline acoustic signature and the one or more subsequent acoustic signatures. 5. The method of claim 4 wherein the acoustic signature capture and monitoring subsystem comprises one or more microphones and one or more audio recording devices to capture and record the baseline acoustic signature and the one or more subsequent acoustic signatures. 6. The method of claim 5 wherein the analysis subsystem comprises a computing device to analyze the captured baseline acoustic signature and the captured one or more subsequent acoustic signatures, and to transmit the analyzed baseline acoustic signature and the analyzed one or more subsequent acoustic signatures to the data processing system. 7. The method of claim 1 wherein the steps of obtaining and analyzing comprise obtaining and analyzing the baseline acoustic signature and the one or more subsequent acoustic signatures for one or more sound producing structures comprising an engine, a propeller, a fuel pump, a rotor, and an air conditioning system. 8. The method of claim 1 wherein the steps of transmitting the baseline acoustic signature and the one or more subsequent acoustic signatures to the data processing system comprise transmitting via a wired communications network or a wireless communications network. 9. The method of claim 1 wherein the steps of transmitting to the data processing system comprise transmitting the baseline acoustic signature and the one or more subsequent acoustic signatures to an onboard maintenance system comprising a maintenance system log onboard the UAV, or to a downstream off-board system comprising an operations center for the UAV or a maintenance depot for the UAV. 10. A system for health monitoring of an unmanned autonomous vehicle (UAV), the system comprising: an acoustic signature health monitoring system off-board an unmanned autonomous vehicle (UAV), the acoustic signature health monitoring system comprising: an acoustic signature capture and monitoring subsystem configured to capture a baseline acoustic signature and one or more subsequent acoustic signatures for one or more sound producing structures of the UAV;an analysis subsystem configured to analyze and transmit the baseline acoustic signature and the one or more subsequent acoustic signatures;a power source providing power to the acoustic signature capture and monitoring subsystem and the analysis subsystem; and,a data processing system comprising a computing device configured to receive and process the baseline acoustic signature and the one or more subsequent acoustic signatures to obtain a processed baseline acoustic signature and one or more processed subsequent acoustic signatures, wherein the data processing system compares the processed baseline acoustic signature with the one or more processed subsequent acoustic signatures for each of the one or more sound producing structures of the UAV to detect any change in the processed baseline acoustic signature over time, in order to identify any defects and monitor a mechanical health of the one or more sound producing structures of the UAV. 11. The system of claim 10 wherein the acoustic signature capture and monitoring subsystem comprises one or more microphones and one or more audio recording devices configured to capture the baseline acoustic signature and the one or more subsequent acoustic signatures for the one or more sound producing structures of the UAV. 12. The system of claim 10 wherein the analysis subsystem comprises an analysis subsystem computing device configured to perform a desired acoustic signature analyses on the baseline acoustic signature and the one or more subsequent acoustic signatures. 13. The system of claim 10 wherein the acoustic signature health monitoring system comprises a portable acoustic signature health monitoring system or comprises a permanent acoustic signature health monitoring system. 14. The system of claim 10 wherein the one or more sound producing structures comprise an engine, a propeller, a fuel pump, a rotor, and an air conditioning system. 15. The system of claim 10 wherein the processed baseline acoustic signature and the one or more processed subsequent acoustic signatures are transmitted via a communications network to an onboard maintenance system comprising a maintenance system log onboard the UAV, or to a downstream off-board system comprising an operations center for the UAV or a maintenance depot for the UAV. 16. An acoustic signature health monitoring system off-board an unmanned autonomous vehicle (UAV), the system comprising: an acoustic signature capture and monitoring subsystem configured to capture a baseline acoustic signature and configured to capture one or more subsequent acoustic signatures, for one or more sound producing structures of an unmanned autonomous vehicle (UAV), the acoustic signature capture and monitoring subsystem comprising: one or more microphones; and,one or more audio recording devices;an analysis subsystem comprising an analysis subsystem computing device configured to analyze and transmit the baseline acoustic signature and the one or more subsequent acoustic signatures to a data processing system for processing to obtain a processed baseline acoustic signature and one or more processed subsequent acoustic signatures, wherein the data processing system compares the processed baseline acoustic signature with the one or more processed subsequent acoustic signatures for each of the one or more sound producing structures of the UAV to detect any change in the processed baseline acoustic signature over time, in order to identify any defects and monitor a mechanical health of the one or more sound producing structures of the UAV; and,a power source providing power to the acoustic signature capture and monitoring subsystem and the analysis subsystem. 17. The system of claim 16 wherein the system is either portable or permanently installed at a desired location. 18. The system of claim 16 wherein the system is automated and is configured for an in-field set-up. 19. The system of claim 16 wherein the baseline acoustic signature and the one or more subsequent acoustic signatures are transmitted to the data processing system via a wired communications network or a wireless communications network. 20. The system of claim 16 wherein the one or more sound producing structures comprise an engine, a propeller, a fuel pump, a rotor, and an air conditioning system.

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System and method for acoustic signature health monitoring of unmanned autonomous vehicles (UAVS)

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System and method for acoustic signature health monitoring of unmanned autonomous vehicles (UAVS)

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