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公开(公告)号：US09903942B2
公开(公告)日：2018-02-27
申请号：US14787735
申请日：2014-04-21
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Taketo Harada , Mitsuyasu Matsuura , Keiko Akiyama
CPC classification number: G01S7/539 , G01S7/521 , G01S15/08 , G01S15/42 , G01S15/876 , G01S15/931 , G01S2015/932 , G01S2015/938 , G01S2015/939 , G08G1/165
Abstract: An obstacle detection device includes a plurality of ultrasonic sensors and a detection control unit. The detection control unit detects an object by using one of at least two of the ultrasonic sensors as a transmission sensor that transmits an ultrasonic wave and the other of the at least two of the ultrasonic sensors as a reception sensor that receives the ultrasonic wave transmitted by the transmission sensor and reflected. A difference of heights of the one used as the transmission sensor and the other used as the reception sensor attached to a surface of a vehicle body from a ground is a predetermined threshold height that is defined based on twice a height of a bump on the ground as a non-detection object.
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公开(公告)号：US10247825B2
公开(公告)日：2019-04-02
申请号：US15519809
申请日：2015-10-21
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Mitsuru Suzuki , Keiko Akiyama , Motonari Ohbayashi
Abstract: An object detection device equipped at a predetermined height includes a waveform obtaining portion obtaining a wave height value of a reflected wave, a reference value calculation portion calculating a wave height value of a wave reflected from a reference obstacle present at the predetermined height as reference value, a detection value calculation portion calculating a wave height value of a wave reflected from a detection object as detection value, a reference distance calculation portion calculating a reference distance between the reference obstacle and the distance measuring sensor, a detection distance calculation portion calculating a detection distance between the detection object and the distance measuring sensor, a correction portion correcting the reference value and the detection value, and a height calculation portion calculating a height of the detection object relative to the predetermined height according to a relative comparison result of the corrected reference value and the corrected detection value.
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公开(公告)号：US20170242122A1
公开(公告)日：2017-08-24
申请号：US15519809
申请日：2015-10-21
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Mitsuru Suzuki , Keiko Akiyama , Motonari Ohbayashi
CPC classification number: G01S15/931 , B60R21/0134 , B62D15/029 , G01S7/527 , G01S15/08 , G01S15/46 , G01S15/87 , G01S2015/934 , G01S2015/938 , G08G1/165 , G08G1/168
Abstract: An object detection device equipped at a predetermined height includes a waveform obtaining portion obtaining a wave height value of a reflected wave, a reference value calculation portion calculating a wave height value of a wave reflected from a reference obstacle present at the predetermined height as reference value, a detection value calculation portion calculating a wave height value of a wave reflected from a detection object as detection value, a reference distance calculation portion calculating a reference distance between the reference obstacle and the distance measuring sensor, a detection distance calculation portion calculating a detection distance between the detection object and the distance measuring sensor, a correction portion correcting the reference value and the detection value, and a height calculation portion calculating a height of the detection object relative to the predetermined height according to a relative comparison result of the corrected reference value and the corrected detection value.
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Patent Agency Ranking
公开(公告)号：US11908119B2
公开(公告)日：2024-02-20
申请号：US17659386
申请日：2022-04-15
Applicant: DENSO CORPORATION
Inventor： Yutaka Aoki , Keiko Akiyama
IPC: G06T7/00 , H04N23/951 , G01S17/86 , G01S7/497
CPC classification number: G06T7/0002 , H04N23/951 , G01S7/497 , G01S17/86
Abstract: In an abnormality detection device for detecting whether there is an abnormality in either of an optical sensor and a camera that are used to detect objects around a vehicle, a correlation value calculation unit calculates a correlation value between at least one of a reflection intensity image that is detected by the optical sensor emitting light toward surroundings of the vehicle and then receiving reflected light of emitted light and a background light image that is detected by the optical sensor receiving light from the surroundings of the vehicle while the optical sensor is emitting no light, and a captured image of the surroundings from the camera. An abnormality determination unit is configured to, in response to the correlation value calculated by the correlation value calculation unit being out of a predefined range, determine that there is an abnormality in either of the optical sensor and the camera.
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公开(公告)号：US09880273B2
公开(公告)日：2018-01-30
申请号：US15022166
申请日：2014-09-03
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu Matsuura , Keiko Akiyama
IPC: G01S13/93 , G01S7/52 , G01S7/527 , G01S15/93 , B60W30/08 , B60W40/02 , G01S15/04 , G01V3/12 , G01S7/539 , G01S15/87
CPC classification number: G01S7/5276 , B60W30/08 , B60W40/02 , G01S7/52001 , G01S7/52004 , G01S7/539 , G01S15/04 , G01S15/876 , G01S15/931 , G01S2007/52012 , G01S2013/9353 , G01V1/001 , G01V3/12
Abstract: An object detection apparatus mounted to a vehicle includes a transmitter, a receiver, a filter, a threshold calculator, and an object determinator. The transmitter transmits a probe wave in pulse form. The receiver receives a reflected wave of the probe wave. The filter passes, among the received reflected wave, only frequencies that are at least smaller than a pulse frequency of the probe wave. Based on an output of the filter, the threshold calculator calculates an objection determination threshold for determining presence and absence of an object. The object determinator determines the presence and absence of the object by using the objection determination threshold calculated by the threshold calculator.
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公开(公告)号：US09684067B2
公开(公告)日：2017-06-20
申请号：US14436787
申请日：2013-10-24
Applicant: DENSO CORPORATION
Inventor： Akio Nakano , Mitsuyasu Matsuura , Keiko Akiyama
CPC classification number: G01S7/52004 , G01S7/52006 , G01S7/529 , G01S15/04 , G01S15/08 , G01S15/876 , G01S15/931
Abstract: A sound wave sensor in a distance detecting system determines a presence or absence of a target object and a distance to the target object by receiving, with a preset sensitivity, a reflected wave obtained from a transmitted sound wave reflected by the target object. A correction value used to correct the sensitivity of the sound wave sensor is obtained from outside the sound wave sensor, and the sensitivity is corrected by using this correction value.
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公开(公告)号：US20160238700A1
公开(公告)日：2016-08-18
申请号：US15022166
申请日：2014-09-03
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu Matsuura , Keiko Akiyama
CPC classification number: G01S7/5276 , B60W30/08 , B60W40/02 , G01S7/52001 , G01S7/52004 , G01S7/539 , G01S15/04 , G01S15/876 , G01S15/931 , G01S2007/52012 , G01S2013/9353 , G01V1/001 , G01V3/12
Abstract: An object detection apparatus mounted to a vehicle includes a transmitter, a receiver, a filter, a threshold calculator, and an object determinator. The transmitter transmits a probe wave in pulse form. The receiver receives a reflected wave of the probe wave. The filter passes, among the received reflected wave, only frequencies that are at least smaller than a pulse frequency of the probe wave. Based on an output of the filter, the threshold calculator calculates an objection determination threshold for determining presence and absence of an object. The object determinator determines the presence and absence of the object by using the objection determination threshold calculated by the threshold calculator.
Abstract translation: 安装到车辆的物体检测装置包括发射器，接收器，滤波器，阈值计算器和对象确定器。 发射机以脉冲形式发送探测波。 接收器接收探测波的反射波。 在接收的反射波中，滤波器仅通过至少小于探测波的脉冲频率的频率。 基于滤波器的输出，阈值计算器计算用于确定对象的存在和不存在的异常确定阈值。 对象确定器通过使用由阈值计算器计算出的异常判定阈值来确定对象的存在和不存在。
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8.发明申请SOUND WAVE SENSOR, CORRECTION VALUE SETTING DEVICE, AND DISTANCE DETECTING DEVICE 有权声波传感器，校正值设定装置和距离检测装置公开(公告)号：US20150268335A1
公开(公告)日：2015-09-24
申请号：US14436787
申请日：2013-10-24
Applicant: DENSO CORPORATION
Inventor： Akio Nakano , Mitsuyasu Matsuura , Keiko Akiyama
CPC classification number: G01S7/52004 , G01S7/52006 , G01S7/529 , G01S15/04 , G01S15/08 , G01S15/876 , G01S15/931
Abstract: A sound wave sensor in a distance detecting system determines a presence or absence of a target object and a distance to the target object by receiving, with a preset sensitivity, a reflected wave obtained from a transmitted sound wave reflected by the target object. A correction value used to correct the sensitivity of the sound wave sensor is obtained from outside the sound wave sensor, and the sensitivity is corrected by using this correction value.
Abstract translation: 距离检测系统中的声波传感器通过以预设的灵敏度接收从由目标对象反射的发送声波获得的反射波来确定目标对象的存在或不存在以及到目标对象的距离。 从声波传感器外部获得用于校正声波传感器的灵敏度的校正值，并且通过使用该校正值来校正灵敏度。
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