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    High-precision vehicle positioning method based on ultra-wideband in intelligent vehicle infrastructure cooperative systems
    4.
    发明授权
    High-precision vehicle positioning method based on ultra-wideband in intelligent vehicle infrastructure cooperative systems 有权

    公开(公告)号：US11874366B2

    公开(公告)日：2024-01-16

    申请号：US17436614

    申请日：2019-05-29

    Applicant: Southeast University

    Inventor： Xu Li ,  Huaikun Gao ,  Qimin Xu

    IPC: G01S13/87 ,  G01S13/91

    CPC classification number: G01S13/878 ,  G01S13/91

    Abstract: In Intelligent Vehicle Infrastructure Cooperative Systems (IVICS), a high-precision vehicle positioning method utilizing Ultra-Wide Band (UWB) is proposed. Owing to remarkable wide band of radio signal, this UWB-based positioning method shows excellent anti-interference capability and multi-path immunity, which are essential for achieving high precision in practical traffic scenario. In this approach, several UWB nodes are deliberately deployed at the crossing with the help of roadside infrastructure in IVICS. Meanwhile, an algorithm aiming at Non Line of Sight (NLOS) error compensation is developed to improve the positioning performance. In a word, this method has been demonstrated the potential to achieve accurate, reliable, continuous and integrated localization.

    Traffic monitoring system and traffic monitoring method
    5.
    发明授权
    Traffic monitoring system and traffic monitoring method 有权

    公开(公告)号：US11869347B2

    公开(公告)日：2024-01-09

    申请号：US17044619

    申请日：2019-03-29

    Applicant: Panasonic Corporation

    Inventor： Yoji Yokoyama ,  Makoto Yasugi

    IPC: G01S13/86 ,  G08G1/01 ,  G01S13/91 ,  G06T11/60 ,  G08G1/04

    CPC classification number: G08G1/01 ,  G01S13/867 ,  G01S13/91 ,  G06T11/60 ,  G08G1/04

    Abstract: The traffic monitoring system is provided with: a camera which captures an image of a monitoring area including a road and generates image data; a millimeter-wave radar which scans a scanning area included in the monitoring area and generates millimeter-wave data; and an information processing server which is connected to the camera and the millimeter-wave radar and acquires the image data and the millimeter-wave data. The information processing server is provided with: a data synchronization unit which synchronizes the image data with the millimeter-wave data so that the difference between a timing at which the image data is generated and a timing at which the millimeter-wave data is generated is equal to or smaller than a certain value; and a screen generation unit which associates the image data and the millimeter wave, which have been synchronized, with each other and generates a monitoring screen that indicates the road conditions.

    Radar-based discovery technologies for managing air traffic
    6.
    发明授权
    Radar-based discovery technologies for managing air traffic 有权

    公开(公告)号：US11854415B1

    公开(公告)日：2023-12-26

    申请号：US16379477

    申请日：2019-04-09

    Applicant: Fortem Technologies, Inc.

    Inventor： Adam Eugene Robertson ,  Mikko Valimaki

    IPC: G08G5/00 ,  G01S13/91 ,  G01S13/95

    CPC classification number: G08G5/0082 ,  G01S13/91 ,  G01S13/951 ,  G08G5/0091

    Abstract: Systems, methods, and computer-readable media are described for radar-based object discovery and airspace data collection and management. In some examples, a data service system deploys radars across geographic areas based on a respective radar detection range of the radars and a coverage parameter for the geographic areas, wherein each of the radars is configured to detect object parameters within the respective radar detection range. The data service system collects the object parameters from the radars, determines weather conditions and/or airspace regulations associated with the geographic areas, and models airspace conditions for the geographic areas based on the object parameters and the weather conditions and/or airspace regulations.

    GROUND MAP MONITOR FOR MAP-BASED, VISION NAVIGATION SYSTEMS
    7.
    发明公开
    GROUND MAP MONITOR FOR MAP-BASED, VISION NAVIGATION SYSTEMS 审中-公开

    公开(公告)号：US20230228860A1

    公开(公告)日：2023-07-20

    申请号：US17576711

    申请日：2022-01-14

    Applicant: Honeywell International Inc.

    Inventor： Vibhor L. Bageshwar ,  Brian Schipper

    IPC: G01S13/00 ,  G01S13/89 ,  G01S7/00 ,  G01S13/91

    CPC classification number: G01S13/003 ,  G01S7/006 ,  G01S13/89 ,  G01S13/91

    Abstract: A ground map monitor method comprises obtaining positions of communication nodes in a communications network, selecting transmission and reception nodes from the communication nodes, and measuring bistatic signals between the transmission and reception nodes to determine nominal signal performance characteristics for the bistatic signals, including reflected signal time delays, frequency shifts, and power levels. The method further comprises monitoring the bistatic signals for changes to nominal signal performance characteristics. The method uses discriminators between the nominal signal performance characteristics and a current performance level of the bistatic signals, and compares the discriminators against performance thresholds, to determine whether current signal performance characteristics have varied from their nominal levels. An alert signal is broadcast that a section of a navigation map is not useable for navigation of a vehicle if changes in the current performance level of the bistatic signals exceeds the performance thresholds.

    MONITORING LOW-FLYING AIRPLANES
    9.
    发明申请
    MONITORING LOW-FLYING AIRPLANES 审中-公开

    公开(公告)号：US20180315325A1

    公开(公告)日：2018-11-01

    申请号：US15769353

    申请日：2016-10-24

    Applicant: QUANTEC GRUND GMBH & CO. KG

    Inventor： Lars HOHAUS ,  Vincent KEßLER ,  Alexander GERDES

    IPC: G08G5/04 ,  G08G5/00 ,  F03D80/10 ,  F03D7/02 ,  G01S13/91 ,  G01S13/02

    CPC classification number: G08G5/04 ,  F03D7/0264 ,  F03D80/10 ,  F05B2270/805 ,  G01S13/0218 ,  G01S13/91 ,  G08G5/0082 ,  Y02E10/72

    Abstract: The invention relates to a system for actuating signal transmitters that are arranged on aviation obstacles, which are obstacles for low-flying airplanes, and signal transmitters for optically warning the airplanes or the pilots thereof, having the following features: a) at least one large-area radar system which is designed to detect airplanes flying at very low altitudes and which is arranged at a location remote from the aviation obstacles, b) at least one computer device which is coupled to the large-area radar system so as to transmit signals and which is designed to evaluate the data provided by the large-area radar system, said data relating to detected airplanes, and to provide such data to other systems via a data connection, and c) at least one data connection between the computer device and multiple aviation obstacles and/or groups of aviation obstacles, wherein d) the computer device is designed to output activation signals for the signal transmitters of aviation obstacles which are being approached by an airplane flying at a low altitude on the basis of the data transmitted by the large-area radar system. The invention further relates to a system for providing data relating to airplanes flying at very low altitudes, to a device comprising a signal transmitter device for aviation obstacles, and to a corresponding actuation device.

    METHOD AND SYSTEM FOR RESOLVING RANGE AMBIGUITY
    10.
    发明申请
    METHOD AND SYSTEM FOR RESOLVING RANGE AMBIGUITY 审中-公开

    公开(公告)号：US20180306911A1

    公开(公告)日：2018-10-25

    申请号：US15769862

    申请日：2016-10-16

    Applicant: QAMCOM TECHNOLOGY AB

    Inventor： Thomas PERNSTÅL ,  Gary SMITH JONFORSEN

    IPC: G01S13/58 ,  G01S7/35

    CPC classification number: G01S13/584 ,  B61L29/30 ,  G01S7/354 ,  G01S13/286 ,  G01S13/30 ,  G01S13/346 ,  G01S13/347 ,  G01S13/38 ,  G01S13/883 ,  G01S13/886 ,  G01S13/91 ,  G01S13/931 ,  G01S2013/9328

    Abstract: A system for resolving range ambiguity includes a wave generator a modulator for applying a digital signature to a continuous wave to generate a digitally-signed continuous wave, a transmitter for emitting the digitally-signed continuous wave from the ranging system as interrogating radiation towards an object, a receiver for receiving a portion of the interrogating radiation after reflection from the object, a correlator for correlating the portion of the interrogating radiation against the emitted digitally signed continuous wave according to the digital signature, a processor for determining from correlation in the correlator an elapsed time period between emitting the interrogating radiation and receiving the portion of the interrogating radiation after reflection from the object, wherein the processor calculates a range of the object from the transmitter by employing space-time adaptive processing and to determine a velocity of the object from correlation in the correlator using Doppler detection.

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