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    VEHICLE LOCATION INFORMATION CORRECTION BASED ON ANOTHER VEHICLE
    22.
    发明公开
    VEHICLE LOCATION INFORMATION CORRECTION BASED ON ANOTHER VEHICLE 审中-公开

    公开(公告)号：EP4009077A3

    公开(公告)日：2022-12-07

    申请号：EP21199742.4

    申请日：2021-09-29

    申请人： Aptiv Technologies Limited

    发明人： Knutson, Eric Paul ,  Spell, David Martin ,  Pham, Linh

    IPC分类号： G01S19/40 ,  G01S19/41 ,  G01S19/48 ,  G01S5/00 ,  G01S13/86 ,  G01S13/931

    摘要： A system (20) for determining vehicle location information includes a receiver supported on a first vehicle (22) for receiving a communication from a second vehicle (32) and a signal from each of a plurality of satellites (26, 28). A detector (40) is configured to detect a positional relationship between the first vehicle (22) and the second vehicle (32). A processor (42) is configured to determine a location of the first vehicle (22) from received satellite signals, a location of the second vehicle (32) based on the communication received from the second vehicle (32), a corrected location of the first vehicle (22) based on the location of the second vehicle (32) and the positional relationship between the vehicles, and a corrective mapping of a plurality of sections (66-76) of a field of view (64) of the receiver. Each section has ad correction factor for correcting a subsequently determined location of the first vehicle (22) based on satellite signals received from satellites appearing in the respective sections (66-76).

    PERSONAL NAVIGATION DEVICE OPERABLE IN GNSS-DENIED ENVIRONMENT
    25.
    发明公开
    PERSONAL NAVIGATION DEVICE OPERABLE IN GNSS-DENIED ENVIRONMENT 审中-公开

    公开(公告)号：EP4027173A1

    公开(公告)日：2022-07-13

    申请号：EP21201704.0

    申请日：2021-10-08

    申请人： The Boeing Company

    发明人： LI, Rongsheng

    IPC分类号： G01S19/48 ,  G01C21/02 ,  G01C21/16

    摘要： A personal navigation device comprising a body, a star tracker, an inclinometer, a clock, a GNSS receiver, and first and second position calculation modules. The first position calculation module is configured to calculate latitude and longitude of the body based on respective outputs from the star tracker, inclinometer, and clock. The second position calculation module is configured to calculate latitude and longitude of the body based on satellite signals received by the GNSS receiver. In one example, the star tracker includes a short-wave infrared camera and the inclinometer includes three accelerometers having non-coplanar axes. The personal navigation device may further include a display device, a display engine, and a user interface configured to enable selection of a particular method of calculating latitude and longitude depending on whether GNSS is available or not.

    FAULT DETECTION, CONTAINMENT, ISOLATION, AND RESPONSE ARCHITECTURE FOR A POSITION, NAVIGATION, AND TIMING (PNT) SYSTEM
    30.
    发明公开
    FAULT DETECTION, CONTAINMENT, ISOLATION, AND RESPONSE ARCHITECTURE FOR A POSITION, NAVIGATION, AND TIMING (PNT) SYSTEM 审中-公开

    公开(公告)号：EP3940425A3

    公开(公告)日：2022-03-09

    申请号：EP21180827.4

    申请日：2021-06-22

    申请人： The Boeing Company

    发明人： LI, RONGSHENG

    IPC分类号： G01S19/20 ,  G01S19/21 ,  G01S19/48 ,  G01S19/45 ,  G01S19/47

    摘要： A PNT system for a user includes a plurality of sensors configured to collect measurements, where the sensors are grouped into a plurality of subsets of sensors. The PNT system individually compares a measured value collected by each of the plurality of sensors with a corresponding threshold value. The PNT system determines a potential fault condition for a particular sensor exists when the measured value exceeds the corresponding threshold value. In response to detecting the potential fault condition, the PNT system contains the potential fault condition by determining a replacement value. In response to determining a number of times that the potential fault condition is detected exceeds a predetermined value, the PNT system determines a confirmed fault condition with the particular sensor and re-groups the plurality of subsets of sensors. The PNT system proceeds to a second level of fault detection for determining a plurality of individual navigation solutions.