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公开(公告)号：US20220317295A1
公开(公告)日：2022-10-06
申请号：US17703363
申请日：2022-03-24
Inventor： Hiroki YAMASHITA , Atsushi SEKI
IPC: G01S15/931 , G06V20/58 , G01S13/931 , G01S13/86 , G01S13/42
Abstract: An object detection device according to the present disclosure, installed in a vehicle, includes a plurality of ranging sensors and each including a transmitter configured to transmit ultrasonic waves and a receiver configured to receive reflected waves of the ultrasonic waves transmitted by the transmitter and reflected by an object around the vehicle, and processing circuitry configured to detect the object around the vehicle based on the reflected waves received by the receiver during a wave receiving period until a predetermined period of time elapses from transmission of the ultrasonic waves by the transmitter. The processing circuitry is configured to acquire an imaged image imaged by an in-vehicle camera that images surroundings of the vehicle. The processing circuitry is configured to determine whether a specific object is contained based on the imaged image. The processing circuitry is configured to set the wave receiving period from a first wave receiving period to a second wave receiving period longer than the first wave receiving period when the specific object is determined to be contained in the imaged image.
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公开(公告)号：US20230056917A1
公开(公告)日：2023-02-23
申请号：US17834309
申请日：2022-06-07
Inventor： Hiroki YAMASHITA , Atsushi SEKI
IPC: G01S15/931
Abstract: An object detection system includes distance measurement sensors and a hardware processor functioning as a wave transmission control circuit and a determination circuit. The distance measurement sensors provided at different positions in a vehicle. The wave transmission control circuit sets one of the distance measurement sensors as a top of a wave transmission order. A detection range of the one of the distance measurement sensors covers a region where an object is located. The object has been detected through preliminary detection when power supply to the vehicle is started. The wave transmission control circuit then repeats a cyclic wave transmission control on the distance measurement sensors to emit ultrasonic waves sequentially in the wave transmission order. The determination circuit determines an object as a detection target object when any one of the distance measurement sensors has detected the object a predetermined number of times.
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公开(公告)号：US20220317292A1
公开(公告)日：2022-10-06
申请号：US17688335
申请日：2022-03-07
Inventor： Yoshimasa OKABE , Toshimasa TAKAGI , Hiroki YAMASHITA
IPC: G01S15/32 , G01S15/931
Abstract: A distance measurement device includes: a transmission and reception device configured to transmit a transmission wave and receive a reflected wave; a memory; and a hardware processor coupled to the memory. The hardware processor is configured to: detect a reception signal received by the transmission and reception device and obtain a reception waveform indicating a temporal change in an intensity of the reception signal; detect a feature amount of the reflected wave based on the reception waveform; calculate a distance from the distance measurement device to an object, based on the feature amount; and control a detection condition of detection of the feature amount by changing a threshold for detecting the feature amount, based on a change in the feature amount, in a case where the reflected wave arrives during a reverberation period in which reverberation of the transmission wave remains in the transmission and reception device.
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Patent Agency Ranking
公开(公告)号：US20220308199A1
公开(公告)日：2022-09-29
申请号：US17694154
申请日：2022-03-14
Inventor： Yiming YANG , Hiroki YAMASHITA
IPC: G01S13/86 , G01S15/931 , G01S13/931
Abstract: An object identification apparatus includes: an identifier that identifies whether an object is a control target based on a result of comparison between reflection intensity of a detection wave and an identification threshold when the detection wave is received by the moving body; and a changer that changes identification sensitivity of the identifier according to positions of at least two points of the object when the detection wave is reflected at the at least two points and received by the moving body.
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公开(公告)号：US20210300367A1
公开(公告)日：2021-09-30
申请号：US17212797
申请日：2021-03-25
Inventor： Hiroki YAMASHITA , Shingo KAWAHARA , Sumiaki HAZAMA , Yoshimasa OKABE
Abstract: A vehicle including a vehicle control device is disclosed. The vehicle control device determines whether an object is a preceding vehicle and whether a brake light of the preceding vehicle is on or off. When the object is a preceding vehicle and its brake light is on, the vehicle control device transmits a braking request that instructs a braking control device to stop the vehicle at a position at which an inter-vehicle distance between the preceding vehicle and the vehicle is equal to or larger than a first distance. When the object is a preceding vehicle and its brake light is off, the vehicle control device transmits a braking request that instructs the braking control device to stop the vehicle at a position at which the inter-vehicle distance is equal to or larger than a second distance being smaller than the first distance.
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公开(公告)号：US20220308210A1
公开(公告)日：2022-09-29
申请号：US17688354
申请日：2022-03-07
Inventor： Yoshimasa OKABE , Toshimasa TAKAGI , Hiroki YAMASHITA
IPC: G01S15/931 , G01S15/10 , G01S15/12 , G01S15/14
Abstract: An object detection apparatus includes distance measuring devices and a hardware processor. The distance measuring devices are provided in a vehicle and emit ultrasonic waves. The distance measuring devices detect an object around the vehicle and obtain distance information indicating a distance to the detected object. The hardware processor determines a scene in which the vehicle is placed. The determination is performed on the basis of the distance information, vehicle speed information, an image of surroundings of the vehicle, and/or a location of the vehicle on a map. The hardware processor performs, on the basis of a scene determination result, setting of a high-sensitivity area where sensitivity for detecting the reflected waves is temporarily increased, a change of an emission interval of the ultrasonic waves, and/or a change of an emission sequence of the ultrasonic waves.
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公开(公告)号：US20230001919A1
公开(公告)日：2023-01-05
申请号：US17944923
申请日：2022-09-14
Inventor： Sumiaki HAZAMA , Yoshimasa OKABE , Hiroki YAMASHITA , Shingo KAWAHARA , Chiaki IZUMOTO , Yusuke NAKAMURA , Teppei SHIBATA , Toru CHIKAMITSU
IPC: B60W30/09 , B60W30/095 , B60W40/04 , B60W10/18 , G01S15/931 , G01S15/62 , G01S15/46 , G01S15/08
Abstract: An object detection device includes first and second detectors each configured to detect an object by transmitting an ultrasonic wave in a moving direction of the moving object and receiving a reflected wave of the ultrasonic wave, a second detector, a memory, and a hardware processor coupled to the memory, and configured to: determine that an obstacle is present in the moving direction of the moving object, based on object detection results by the first and second detectors; determine crossing of the obstacle based on object detection results by the first and second detectors in a state in which it is being determined that the obstacle is present; and cause a driving controller mounted on the moving object, to release driving restriction control of restricting movement of the moving object when determining the crossing, or prohibit the driving controller from releasing the driving restriction control under a predetermined condition.
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公开(公告)号：US20210190605A1
公开(公告)日：2021-06-24
申请号：US17125406
申请日：2020-12-17
Inventor： Shingo KAWAHARA , Yoshimasa OKABE , Chiaki IZUMOTO , Sumiaki HAZAMA , Hiroki YAMASHITA , Takeo TOMIDA
Abstract: A correction amount setting apparatus sets a correction amount for a sound wave sensor that is mounted on a vehicle and that detects an obstacle by transmitting and receiving a sound wave, the correction amount being a correction amount of a sensitivity to a reflection wave or a threshold for determining whether an obstacle is present. The correction amount setting apparatus includes: a correction amount calculator that acquires temperature information from a temperature sensor that detects an outside air temperature around the vehicle and, based on the temperature information, determines the correction amount; and a correction amount setter that determines and sets the correction amount for the sound wave sensor when the vehicle, from start of traveling, after having been accelerated to a speed higher than a reference speed, is decelerated to the reference speed.
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