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公开(公告)号：US20200225346A1
公开(公告)日：2020-07-16
申请号：US16829473
申请日：2020-03-25
Applicant: DENSO CORPORATION
Inventor： Yohei SUZUKI , Taketo HARADA , Mitsuyasu MATSUURA , Tetsuya AOYAMA
Abstract: An object detection device comprises a transmission sound pressure adjustment unit adjusting a sound pressure of the search wave so that the sound pressure of the search wave or a reflected wave based on the search wave is within a predetermined transmission target range. The transmission unit transmits, as the search wave, a first search wave with a first frequency changing with time at a first rate and a second search wave with a second frequency changing with time at a second rate that is different from the first rate. The transmission sound pressure adjustment unit is configured to adjust the sound pressure of each of the first and second search waves so that the sound pressure of the corresponding one of the first and second search waves or the reflected wave based on the corresponding one of the first and second search waves is within the transmission target range.
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公开(公告)号：US20200057897A1
公开(公告)日：2020-02-20
申请号：US16662380
申请日：2019-10-24
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu MATSUURA , Taketo HARADA , Yu MAEDA , Hirohiko YANAGAWA
Abstract: A position acquisition unit acquires relative position information between an own vehicle and an obstacle based on a reception wave received by a distance measurement sensor. A shape recognition unit executes shape recognition of the obstacle based on image information acquired by an image capturing unit. A detection processing unit detects the obstacle based on the relative position information acquired by the position acquisition unit and a shape recognition result obtained by the shape recognition unit. The detection processing unit determines whether the height of the obstacle is equal to or greater than a predetermined height or not. The detection processing unit discards the relative position information corresponding to the obstacle in a case where the shape recognition result obtained by the shape recognition unit indicates that the height of the obstacle is less than the predetermined height.
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公开(公告)号：US20190132543A1
公开(公告)日：2019-05-02
申请号：US16096042
申请日：2017-04-25
Applicant: DENSO CORPORATION
Inventor： Yu MAEDA , Taketo HARADA , Mitsuyasu MATSUURA , Hirohiko YANAGAWA , Muneaki MATSUMOTO
Abstract: An image processing unit identifies the shape of an obstacle that is identified from an area that appears in a peripheral image based on an image captured by a camera. The shape of the obstacle includes at least a tilt of a section of the obstacle in a road-surface direction. The section of the obstacle faces a vehicle. The image processing unit generates a superimposed image in which a mark image that is generated as a pattern that indicates the identified obstacle is superimposed onto a position that corresponds to the obstacle in the peripheral image. At this time, the image processing unit variably changes properties of the mark image based on the tilt of the obstacle identified by an obstacle identifying unit. The image processing unit then displays the generated superimposed image on display apparatus.
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公开(公告)号：US20190107611A1
公开(公告)日：2019-04-11
申请号：US16085208
申请日：2017-02-22
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu MATSUURA , Taketo HARADA , Tetsuya AOYAMA , Yu KOYAMA
Abstract: An object detection apparatus drives a piezoelectric vibrator to transmit an ultrasonic wave, and receives a reflected wave that is reflected from an object. The object detection apparatus includes the piezoelectric vibrator, a drive circuit that supplies drive power which drives the piezoelectric vibrator, and a resistor section that is connected in parallel with the piezoelectric vibrator and has a resistance value that is variable.
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