ON-BOARD RADAR APPARATUS AND NOTIFICATION SYSTEM

    公开(公告)号:US20170176585A1

    公开(公告)日:2017-06-22

    申请号:US15325884

    申请日:2015-07-13

    Abstract: A radar apparatus generates a strength distribution indicating a correspondence relationship between a relative speed parameter related to an observation point relative speed and a reflection strength parameter related to reflection strength of radar waves reflected at an observation point, for a plurality of observation points. Furthermore, the radar apparatus determines that a traveling vehicle is detected when the reflection strength parameter decreases as the relative speed parameter increases from a center relative speed parameter that is the relative speed parameter corresponding to a peak in the reflection strength, the reflection strength parameter decreases as the relative speed parameter decreases from the center relative speed parameter, and a distribution of the reflection strength parameter is symmetrical with the center relative speed parameter at the center.

    Intersecting road estimation device

    公开(公告)号:US11983937B2

    公开(公告)日:2024-05-14

    申请号:US17144874

    申请日:2021-01-08

    CPC classification number: G06V20/588

    Abstract: An intersecting road estimation device includes an object detection unit that detects an object existing around an own vehicle and a position of the object, an object extraction unit that extracts a stationary object and a position of the stationary object from an object detection result, a first estimation unit that estimates a road edge of a traveling road on which the own vehicle is traveling based on the position of the stationary object, a candidate extraction unit that extracts a stationary object existing outside the road edge of the traveling road estimated by the first estimation unit as a candidate for an outside stationary object representing a road edge of an intersecting road intersecting the traveling road, and a second estimation unit that estimates the road edge of the intersecting road based on a position of the outside stationary object extracted by the candidate extraction unit.

    Radar system suppressing interference between a plurality of radar units

    公开(公告)号:US11841454B2

    公开(公告)日:2023-12-12

    申请号:US17062165

    申请日:2020-10-02

    Abstract: A radar system is provided with a plurality of radar units. Each radar unit includes a first processing unit for calculating a distance and a relative speed to an object in the vicinity of each radar unit in accordance with a beat signal, a frequency band of the first modulated waves being a first frequency band, and a modulation period of the first modulated waves being a first modulation period; a second processing unit for calculating a distance to the object in accordance with a beat signal, a frequency band of the second modulated waves being a second frequency band, and a modulation period of the second modulated waves being a second modulation period; and a calculation result determination unit for determining the distance and the relative speed to the object in accordance with calculation results of the first and second processing units.

    Object detection apparatus
    25.
    发明授权

    公开(公告)号:US11294045B2

    公开(公告)日:2022-04-05

    申请号:US16339939

    申请日:2017-10-03

    Abstract: A vehicle information providing apparatus repeatedly acquires observation point information. The apparatus calculates at least one position of the predicted point. When the observation point information is acquired, the apparatus extracts a predicted point that can be connected to the observation point from the calculated predicted points. The apparatus calculates the position of the current filtered point based on the position of the current observation point and the position of the latest predicted point. When the observation point information of a new object (an object having no latest predicted point connectable to the observation point) is acquired, the device sets initial vectors. The apparatus calculates the position of the predicted point at time instants succeeding the current time instant for each of the traveling directions indicated by the initial vectors.

    Sensor control apparatus
    26.
    发明授权

    公开(公告)号:US11208114B2

    公开(公告)日:2021-12-28

    申请号:US16343129

    申请日:2017-10-16

    Abstract: An executing unit is configured to execute at least one of control of operating performance of a plurality of sensors which monitor different regions around a vehicle and predetermined processing for each of a plurality of output values output from the plurality of sensors. A specifying unit is configured to specify a direction of the vehicle with respect to a reference direction set on the basis of a road around the vehicle. A setting unit is configured to set priorities of the plurality of sensors in accordance with the direction of the vehicle specified by the specifying unit. The executing unit changes at least one of ratios of the operating performance of the plurality of sensors and ratios of amounts of processing performed for the plurality of output values on the basis of the priorities.

    Radar device
    27.
    发明授权

    公开(公告)号:US11002843B2

    公开(公告)日:2021-05-11

    申请号:US16315291

    申请日:2017-07-07

    Abstract: A dual-frequency CW processing unit (12) calculates an observation-point orientation of an observation point. An FMCW processing unit (11) calculates at least a power spectrum of a beat signal, which has been generated based on radar waves that have come from the calculated observation-point orientation, in terms of an up-modulation time interval and a down-modulation time interval (termed orientation power spectrum hereinafter). The FMCW processing unit (11) shifts the orientation power spectra of the up- and down-modulation time intervals to positive and negative directions, respectively, by an amount corresponding to a Doppler shift frequency. The FMCW processing unit (11) calculates a differential power spectrum by differentiating the orientation power spectra of the shifted up- and down-modulation time intervals, and detects a peak frequency where intensity is maximum.

    RADAR SYSTEM SUPPRESSING INTERFERENCE BETWEEN A PLURALITY OF RADAR UNITS

    公开(公告)号:US20210018588A1

    公开(公告)日:2021-01-21

    申请号:US17062165

    申请日:2020-10-02

    Abstract: A radar system is provided with a plurality of radar units. Each radar unit includes a first processing unit for calculating a distance and a relative speed to an object in the vicinity of each radar unit in accordance with a beat signal, a frequency band of the first modulated waves being a first frequency band, and a modulation period of the first modulated waves being a first modulation period; a second processing unit for calculating a distance to the object in accordance with a beat signal, a frequency band of the second modulated waves being a second frequency band, and a modulation period of the second modulated waves being a second modulation period; and a calculation result determination unit for determining the distance and the relative speed to the object in accordance with calculation results of the first and second processing units.

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