公开(公告)号：US20240246548A1

公开(公告)日：2024-07-25

申请号：US18628499

申请日：2024-04-05

Applicant: DENSO CORPORATION

Inventor： Yusuke AKAMINE ,  Takuya TAKAYAMA

IPC: B60W50/029 ,  B60W50/02 ,  G01S7/41 ,  G01S13/56

CPC classification number: B60W50/029 ,  B60W50/0205 ,  G01S7/415 ,  G01S13/56 ,  B60W2420/408 ,  B60W2520/10 ,  B60W2554/20 ,  B60W2556/10

Abstract: An information processing device for a vehicle includes an observed value detection unit, a tracking unit, and an abnormality determination unit. The abnormality determination unit determines whether a vehicle speed abnormality has occurred. If it is determined that no vehicle speed abnormality has occurred, the tracking unit performs a first process using a predicted value of a relative speed based on a detection result of a vehicle speed to calculate a current estimated value. If it is determined that the vehicle speed abnormality has occurred, the tracking unit performs a second process different from the first process to calculate the current estimated value.

公开(公告)号：US20230305105A1

公开(公告)日：2023-09-28

申请号：US18319326

申请日：2023-05-17

Applicant: DENSO CORPORATION

Inventor： Yusuke AKAMINE ,  Takuya TAKAYAMA

IPC: G01S7/35 ,  G01S13/536 ,  G01S13/56

CPC classification number: G01S7/354 ,  G01S13/536 ,  G01S13/56 ,  G01S13/931

Abstract: A signal processing apparatus is mounted in a moving body and performs a process for measuring an object present in a vicinity of the moving body. The apparatus sets an intensity threshold corresponding to an intensity distribution based on at least one measurement signal periodically generated, and extracts at least one target peak that is a peak that is greater than the intensity threshold in the intensity distribution, using an upper limit number set in advance as an upper limit. The apparatus stores, in a storage unit, the number of extracted peaks that is the number of the at least one target peak extracted, and sets the intensity threshold so as to suppress the number of the at least one target peak in a new intensity distribution from exceeding the upper limit number, based on the number of extracted peaks in a previous intensity distribution stored in the storage unit.

公开(公告)号：US20230131287A1

公开(公告)日：2023-04-27

申请号：US18145304

申请日：2022-12-22

Applicant: DENSO CORPORATION

Inventor： Takuya TAKAYAMA

IPC: G01S7/35 ,  G01S7/02

Abstract: A radar device according to one aspect of the present disclosure includes a transmitting antenna, a receiving antenna, a signal acquisition unit, an interference removing unit, a spectrum acquisition unit, a target extraction unit, and a first threshold calculation unit. The interference removing unit is configured to remove an interference signal from the amplitude signal acquired. The interference signal has an amplitude value exceeding a first threshold. The target extraction unit is configured to extract at least one target component exceeding a set second threshold from a frequency spectrum. The first threshold calculation unit is configured to calculate the first threshold using the at least one target component extracted.

公开(公告)号：US20220120887A1

公开(公告)日：2022-04-21

申请号：US17646380

申请日：2021-12-29

Applicant: DENSO CORPORATION

Inventor： Takuya TAKAYAMA

IPC: G01S13/60

Abstract: An in-vehicle sensor device has an active sensor, an odometry sensor and a processing part. The processing part calculates estimated detection values of a stationary object by using position information parameters, a mounting angle of the active sensor, and a detection error of the odometry sensor. The position information parameters specify a relative position relationship between the stationary object and the active sensor. The processing part updates the position information parameters, the mounting angle, and the detection error simultaneously on the basis of a difference between the estimated detection value which has been calculated, and the position values of the stationary object detected by the active sensor.

公开(公告)号：US20220065987A1

公开(公告)日：2022-03-03

申请号：US17454637

申请日：2021-11-12

Applicant: DENSO CORPORATION

Inventor： Katsuhiko KONDO ,  Takuya TAKAYAMA

IPC: G01S7/40 ,  G01S13/931

Abstract: An axial misalignment estimation apparatus estimates an axial misalignment angle of a radar apparatus mounted in a moving body. The estimation apparatus repeatedly acquires, for each reflection point detected by the radar apparatus, reflection point information including at least a relative speed and an orientation angle. The estimation apparatus acquires a speed of the moving body and extracts a stationary reflection point estimated to be a stationary object from the reflection points based on the speed of the moving body. The estimation apparatus selects, for each divided region, the stationary reflection point included in the divided region such that a predetermined condition is met. The divided region is a detection region of the radar apparatus that is divided into a plurality of parts in at least either of a horizontal direction and a vertical direction. The estimation apparatus determines the axial misalignment angle using the stationary reflection point selected.

公开(公告)号：US20200209380A1

公开(公告)日：2020-07-02

申请号：US16814098

申请日：2020-03-10

Applicant: DENSO CORPORATION

Inventor： Takuya TAKAYAMA

IPC: G01S13/58 ,  G01S7/35

Abstract: A transmission antenna section includes a plurality of transmission antennas, and a reception antenna section includes one or more reception antennas. A modulation section causes a continuous wave common signal generated by an oscillation section to be branched into the same number as the transmission antennas, and performs phase shift keying using a different phase rotation amount for each of the plurality of branch signals. Thus, the modulation section generates a plurality of transmission signals inputted into the plurality of transmission antennas. A processing section generates, on the basis of a plurality of signal components, information on an object by which a radiation wave from the transmission antenna section has been reflected, the plurality of signal components being extracted from each of one or more reception signals received by the antenna section and corresponding to the plurality of transmission signals.