公开(公告)号：US20190242987A1

公开(公告)日：2019-08-08

申请号：US16307601

申请日：2017-06-07

Applicant: DENSO CORPORATION

Inventor： Mai SAKAMOTO ,  Koichiro SUZUKI

IPC: G01S13/34 ,  G01S13/60 ,  G01S7/35 ,  G01S13/87 ,  G01S13/93

CPC classification number: G01S13/34 ,  G01S7/32 ,  G01S7/354 ,  G01S13/60 ,  G01S13/87 ,  G01S13/93 ,  G01S13/931 ,  G01S2013/9378

Abstract: A radar device calculates positions and relative velocities of points of reflection from an FMCW beat signal, extracts stationary reflection points each being a point of reflection having a relative velocity of zero, and sets, for each of the stationary reflection points, an object area estimated to contain an object including the stationary reflection point. The radar device calculates positions and relative velocities of points of reflection from a 2CW beat signal from which a DC component has been removed, extracts in-area reflection points each being a point of reflection that belongs to the object area. The radar device then computes, for each of the in-area reflection points, a cross velocity that is a velocity of the in-area reflection point in a cross-range direction, and statistically processes calculated cross velocities for each of the object areas. The radar device calculates an estimated value of a cross velocity of an object.

公开(公告)号：US20220005352A1

公开(公告)日：2022-01-06

申请号：US17477276

申请日：2021-09-16

Applicant: DENSO CORPORATION

Inventor： Mai SAKAMOTO ,  Hiroki HORI

IPC: G08G1/16 ,  B60Q9/00 ,  G01S13/931

Abstract: The alarm device includes an acquisition part, an alarm judging part, a notification part, a static extraction part, a shielding boundary setting part, and a suppression part. The acquisition part acquires reflection point information and object information. The alarm judging part determines whether the object is an alarm candidate for each of the objects. The notification part issues a notification regarding the alarm candidates. The static extraction part extracts static reflection points. The shielding boundary setting part sets an approximate straight line as a shielding boundary by robust estimation. The suppression part suppresses notification of alarm candidates that are on the opposite side of the shielding boundary.

公开(公告)号：US20210354717A1

公开(公告)日：2021-11-18

申请号：US17388978

申请日：2021-07-29

Applicant: DENSO CORPORATION

Inventor： Mai SAKAMOTO

IPC: B60W50/14 ,  B60W40/09 ,  B60W30/09

Abstract: In a warning apparatus, a restriction unit performs restriction of the issuance of a warning about a ghost from an issuing unit. A trajectory calculator calculates an estimated trajectory of each of first and second target objects. A cancelling unit cancels the restriction of the issuance of the warning about the ghost from the issuing unit upon determination that a predetermined cancelation condition is satisfied for the first and second target objects. The cancelation condition includes a condition that a passing distance between the first and second target objects is larger than a predetermined distance threshold.

公开(公告)号：US20220242439A1

公开(公告)日：2022-08-04

申请号：US17660163

申请日：2022-04-21

Applicant: DENSO CORPORATION

Inventor： Masato ONOZAWA ,  Mai SAKAMOTO ,  Hiroki HORI

IPC: B60W50/16 ,  B60W40/04

Abstract: A mobile warning apparatus according to one aspect of the present disclosure includes a velocity calculator, a position determiner, and an eliminator. The velocity calculator calculates one or more relative velocities of one or more observed points. The position determiner determines whether the observed points are in a predetermined proximity extent. The eliminator eliminates, in response to determination that the observed points are in the predetermined proximity extent, all the observed points from a warning target.

公开(公告)号：US20190143925A1

公开(公告)日：2019-05-16

申请号：US16098669

申请日：2017-05-02

Applicant: SOKEN, INC. ,  DENSO CORPORATION

Inventor： Yusuke AKAMINE ,  Mitsuyasu MATSUURA ,  Mai SAKAMOTO

IPC: B60R21/01 ,  G01S13/60 ,  G01S13/66 ,  G01S13/93 ,  G08G1/16

Abstract: An estimation device includes an information acquisition unit, a detection determination unit, a direction determination unit, and a direction estimation unit. When an object is a first-time detected object, the direction determination unit determines whether a relative direction acquired by the information acquisition unit is a direction toward an own vehicle. When the relative direction acquired by the information acquisition unit is a direction toward the own vehicle, the direction estimation unit estimates that a direction predetermined according to an object position acquired by the information acquisition unit is the movement direction of the object.