INTEGRATED AVIONICS SYSTEMS AND METHODS
    2.
    发明申请
    INTEGRATED AVIONICS SYSTEMS AND METHODS 有权
    综合航空系统与方法

    公开(公告)号:US20140301384A1

    公开(公告)日:2014-10-09

    申请号:US13857890

    申请日:2013-04-05

    CPC classification number: H04W56/001 H04B7/18506

    Abstract: Systems and methods are described for synchronizing data in a mobile platform. In one embodiment, a method for synchronizing data in a mobile platform is provided. The method includes: receiving a first synchronization signal at a first remote interface unit from a signal generator; receiving a second synchronization signal at a second remote interface unit from the signal generator; and executing a synchronization state machine of the first and second remote interface units based on the first and second synchronization signals to synchronize outputs of the first and second remote interface units.

    Abstract translation: 描述了用于在移动平台中同步数据的系统和方法。 在一个实施例中,提供了一种用于在移动平台中同步数据的方法。 该方法包括:在第一远程接口单元处从信号发生器接收第一同步信号; 在信号发生器的第二远程接口单元处接收第二同步信号; 以及基于所述第一和第二同步信号执行所述第一和第二远程接口单元的同步状态机,以同步所述第一和第二远程接口单元的输出。

    Integrated avionics systems and methods

    公开(公告)号:US09706508B2

    公开(公告)日:2017-07-11

    申请号:US13857890

    申请日:2013-04-05

    CPC classification number: H04W56/001 H04B7/18506

    Abstract: Systems and methods are described for synchronizing data in a mobile platform. In one embodiment, a method for synchronizing data in a mobile platform is provided. The method includes: receiving a first synchronization signal at a first remote interface unit from a signal generator; receiving a second synchronization signal at a second remote interface unit from the signal generator; and executing a synchronization state machine of the first and second remote interface units based on the first and second synchronization signals to synchronize outputs of the first and second remote interface units.

    Methods and apparatus for high-integrity data transfer with preemptive blocking

    公开(公告)号:US09641287B2

    公开(公告)日:2017-05-02

    申请号:US14595731

    申请日:2015-01-13

    CPC classification number: H04L1/0045 H04L1/0061

    Abstract: A method for performing high-integrity data transmission is provided. The method obtains a first set of data at a first transmitter and a second set of data at a second transmitter; develops a first key for the obtained first set of data and a second key for the obtained second set of data; and when the first key matches the second key, provides a receiver indication of validity of the first set of data. In certain embodiments, the method stores the first key and the second key within a predetermined window of time. In some embodiments, when the first key matches the second key, the method also synchronizes operation of the first transmitter and the second transmitter.

    HIGH EFFICIENCY ACTUATOR FOR USE IN A MOMENTUM CONTROL DEVICE

    公开(公告)号:US20180198388A1

    公开(公告)日:2018-07-12

    申请号:US15608602

    申请日:2017-05-30

    CPC classification number: H02P6/17 B64G1/283 H02P6/08 H02P6/28

    Abstract: Methods and apparatus are provided for a controlled motor assembly for use in a reaction wheel assembly (RWA). The controlled motor assembly is optimized to work with an AC motor, and includes a filter configured to inhibit electrical and electromagnetic noise from being coupled between a spacecraft power bus and a power bus internal to the RWA, as well as an arrangement of power switch elements providing a path for motor phase currents associated with the AC motor. A digital control system is implemented to receive a command input, position sensor feedback and to retrieve parameters associated with the AC motor from a memory device. Based on the command input, the position sensor feedback and the parameters associated with the AC motor, the digital control system controls activation for the arrangement of power switch elements, and generates data output.

    Methods and systems for calibration of a motor

    公开(公告)号:US09966885B1

    公开(公告)日:2018-05-08

    申请号:US15622837

    申请日:2017-06-14

    CPC classification number: H02P6/17 G01R33/07 H02P6/18

    Abstract: A method for calibrating a motor, the motor comprising a permanent magnet synchronous motor, is provided. The method generates a rotating magnetic field using a voltage vector, the rotating magnetic field configured to rotate at a constant angular velocity independent of an actual rotor position, and the rotating magnetic field rotating in a first direction; identifies, by a processor, timing data associated with a plurality of digital Hall effect sensors; computes, by the processor, accurate positions for each of the plurality of digital Hall effect sensors, using the timing data and the constant angular velocity; creates a reference table in system memory, by the processor, the reference table comprising the accurate positions; and during operation of the motor, calculates accurate angular velocity values for the motor, using the reference table.

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