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公开(公告)号:US10484895B2
公开(公告)日:2019-11-19
申请号:US16162806
申请日:2018-10-17
IPC分类号: H04W24/02 , H04W80/00 , H04B17/309 , H04W24/06
摘要: A computer implemented method includes transmitting a transmit command to a first data concentrator to send out a predetermined signal of predetermined characteristics according to a transmission setting, receiving a received signal from at least one second data concentrator, and determining if there are any signal transmission effects between the first data concentrator and the second data concentrator based on a comparison of the predetermined signal and the received signal.
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公开(公告)号:US10284607B2
公开(公告)日:2019-05-07
申请号:US15195448
申请日:2016-06-28
发明人: Michael A. Lynch , Lei Liu
摘要: Apparatus and associated methods relate to selectively bypassing a daisy-chained network device based on a timing of a series of reset signals. The daisy-chained network device is bypassed if an elapsed time from a last of the reset signals of the series is longer than a predetermined time period. While no interval between adjacent reset signals of the series exceeds the predetermined time period, the daisy-chained network device is not bypassed. In some embodiments, the daisy-chained network device generates the series of reset signals. If the daisy-chained network device fails to generate a next reset signal within the predetermined time period as measured from a previous reset signal, the daisy-chained network device is bypassed. If the daisy-chained network device loses power, it will be bypassed as the reset signals will not be generated, but if the daisy-chained network device regains power, it can be reinserted into the network daisy-chain.
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公开(公告)号:US20190103654A1
公开(公告)日:2019-04-04
申请号:US15720918
申请日:2017-09-29
CPC分类号: H01Q1/2291 , H04B7/18506 , H04Q9/00 , H04Q2209/40 , H04W84/005 , H04W84/18 , H04W88/10 , H04W88/182
摘要: A multi-level network system of an aircraft includes at least one equipment area network and a wide area network. The equipment area network includes equipment of the aircraft, at least one wireless device, and at least one equipment area network coordinator. The at least one wireless device is configured to transmit and receive data using a first wireless link. The at least one equipment area network coordinator is configured to transmit to and receive data from the at least one wireless device using the first wireless link and to transmit data to and receive data from the wide area network using a second wireless link, the first wireless link using lower power than the second wireless link. The wide area network includes a wide area network coordinator that is configured to transmit and receive data from the at least one equipment area network coordinator using the second wireless link.
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公开(公告)号:US10056991B2
公开(公告)日:2018-08-21
申请号:US15399012
申请日:2017-01-05
发明人: Michael A. Lynch , Jonathan Wieman
CPC分类号: H04B17/19 , H01Q1/521 , H01Q9/0407 , H01Q21/28 , H01Q25/00 , H04B1/40 , H04B5/0031 , H04B17/14 , H04W4/80
摘要: A remote data concentrator includes an enclosure with an interior divided into first and second compartments, a first transceiver, and a second transceiver. The first transceiver is seated within the first compartment and the second transceiver is seated within the second compartment. The first and second compartments are radio-frequency isolated such that the transceivers can independently communicate with external wireless devices and communicate with one another for testing readiness of the RDC for communication with external wireless devices.
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公开(公告)号:US09921150B2
公开(公告)日:2018-03-20
申请号:US15015837
申请日:2016-02-04
CPC分类号: G01N21/31 , G01N33/0036 , G01N33/2835 , G01N2021/1765 , G01N2021/4153 , G01N2201/061 , G01N2201/12 , G01S17/89
摘要: A method can include transmitting, from a light source, light through a fuel tank ullage, and determining, by a processing device, an amount of absorption of at least one wavelength of the transmitted light. The method can further include determining, by the processing device based on the amount of absorption of the at least one wavelength of the transmitted light, a chemical composition of the fuel tank ullage.
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公开(公告)号:US20170228881A1
公开(公告)日:2017-08-10
申请号:US15015827
申请日:2016-02-04
IPC分类号: G06T7/60 , G01F23/292 , B64D37/00
摘要: A method can include generating reference image data representing a field of view of an interior of a fuel tank, and generating active image data representing the field of view of the interior of the fuel tank when the fuel tank contains fuel. The method can further include producing, by a processing device, a fuel measurement value representing an amount of fuel contained in the fuel tank based on the reference image data and the active image data, and outputting, by the processing device, an indication of the fuel measurement value.
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公开(公告)号:US20170227454A1
公开(公告)日:2017-08-10
申请号:US15015837
申请日:2016-02-04
CPC分类号: G01N21/31 , G01N33/0036 , G01N33/2835 , G01N2021/1765 , G01N2021/4153 , G01N2201/061 , G01N2201/12 , G01S17/89
摘要: A method can include transmitting, from a light source, light through a fuel tank ullage, and determining, by a processing device, an amount of absorption of at least one wavelength of the transmitted light. The method can further include determining, by the processing device based on the amount of absorption of the at least one wavelength of the transmitted light, a chemical composition of the fuel tank ullage.
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公开(公告)号:US10965342B2
公开(公告)日:2021-03-30
申请号:US16043954
申请日:2018-07-24
发明人: Michael A. Lynch , David F. Larsen
摘要: A system for data transfer in a rotorcraft includes a power bus extending from a power source in a main fuselage of the rotorcraft to provide electrical power to electrical loads located in a tail boom section of the rotorcraft, a first power line communication node on the power bus in the tail boom section of the rotorcraft, a second power line communication node on the power bus in the main fuselage of the rotorcraft, and a digital sensor bus connected to the first power line communication node. Information from the digital sensor bus is transmitted to the first power line communication node and across the power bus to the second power line communication node.
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公开(公告)号:US20190319786A1
公开(公告)日:2019-10-17
申请号:US16002146
申请日:2018-06-07
发明人: Subhra Kanti Das , Adishesha Chinknyakanhalli Sivaramasastry , Michael A. Lynch , Kiran Thupakula
摘要: Embodiments of the invention include techniques for implementing a network security framework for wireless aircraft communication, where the techniques include receiving a key index sequence over a first communication link, and transmitting a subset of the key index to one or more nodes. The techniques also include generating a random encryption key based at least in part on the subset of the key index sequence, encrypting data using the random encryption key, and transmitting the encrypted data over a second communication link.
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公开(公告)号:US20190313247A1
公开(公告)日:2019-10-10
申请号:US16258785
申请日:2019-01-28
摘要: A portable wireless communications adapter includes a wireless receiver, a wireless transmitter, an electronic interface connector, and a location sensing module. The wireless receiver is configured to receive wireless data over a Wireless Avionics Intra-Communication (WAIC) frequency range between 4.2 gigahertz (GHz) and 4.4 GHz. The wireless transmitter is configured to send wireless data over the WAIC frequency range between 4.2 GHz and 4.4 GHz. The electronic interface connector is configured to mate with a portable electronic device for communication of the wireless data with the portable electronic device. The location sensing module is configured to determine a location of the portable wireless communications adapter relative to an interior of an aircraft based on WAIC communications received at the wireless receiver and selectively enable and disable the wireless transmitter based on the determined location.
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