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公开(公告)号：EP4307252A1
公开(公告)日：2024-01-17
申请号：EP23183857.4
申请日：2023-07-06
发明人： SUZUKI, Yoshihiko , KOBAYASHI, Hiroyuki , TAKAHASHI, Yusuke , OODAKE, Tatsuya , SETO, Naoto , FUTAGAMI, Takuya , NAKANO, Takahisa , ASANO, Wataru , HATTORI, Yohei , KATO, Noriyasu , SEGAWA, Taisei , NAMEKI, Hideaki
摘要： According to one embodiment, a pattern discrimination device includes a detector configured to detect, in a landmark included in an input image of a front side of a vehicle from an imaging device that is disposed in the vehicle, a first area, and a second area having a higher surface reflection luminance than, or having a different surface reflectance from, the first area; a storage unit configured to store landmark pattern information discriminated from shapes and positions of the first area and the second area, and rail information in a traveling direction of the vehicle, the rail information being correlated with the landmark pattern information; and a specifying unit configured to acquire, from the storage unit, the rail information corresponding to the landmark pattern information corresponding to the first area and the second area detected by the detector.
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公开(公告)号：EP3502748A1
公开(公告)日：2019-06-26
申请号：EP17841562.6
申请日：2017-08-18
发明人： KOBAYASHI, Hiroyuki , NAMEKI, Hideaki , SETO, Naoto , KAMO, Yushi , JIANG, Susu , HATTORI, Yohei
摘要： A railway design standard storage unit in a train position detection apparatus according to an embodiment stores in advance a railway design standard of a railway track on which a train travels. A position detection unit detects a position of the train by receiving positioning radio waves from satellites through a reception antenna, and simultaneously detects a position of the train by self-contained navigation based on an input signal from a self-contained navigation sensor. When a result of the train position detection based on the positioning radio waves does not satisfy the railway design standard, the position detection unit corrects the result of the train position detection based on the positioning radio waves with a result of the position detection by self-contained navigation. Accordingly, even a vehicle of a train provided with a position detection system after authentication of the vehicle can suppress degradation of positioning accuracy at a place where the direct waves of the positioning radio waves from the satellites cannot be received.
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公开(公告)号：EP3829155A1
公开(公告)日：2021-06-02
申请号：EP19840166.3
申请日：2019-06-26
发明人： KOBAYASHI, Hiroyuki , TAKAHASHI, Yusuke , FUTAGAMI, Takuya , HORIE, Masahiro , SETO, Naoto , YAMASAKI, Yoshiaki , HATTORI, Yohei , ITO, Hiroaki
摘要： An imaging system for a railway vehicle includes a first imaging module and a second imaging module. The first imaging module is placed at a front end of a forefront railway vehicle and is capable of capturing a stereo image of a first area in a traveling direction of the railway vehicle. The second imaging module is placed at the front end, and is capable of capturing a second area including a farther area than at least the first area, and capable of capturing a high-resolution image with resolution higher than resolution of the first imaging module.
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公开(公告)号：EP3816013A1
公开(公告)日：2021-05-05
申请号：EP19824624.1
申请日：2019-06-25
发明人： TAKAHASHI, Yusuke , KOBAYASHI, Hiroyuki , FUTAGAMI, Takuya , HORIE, Masahiro , SETO, Naoto , YAMASAKI, Yoshiaki , HATTORI, Yohei , ITO, Hiroaki
摘要： A detection-region database creating device according to one embodiment includes an acquiring module and a creating module. The acquiring module acquires, from a railway vehicle, a captured image obtained by capturing an image in a traveling direction of the railway vehicle by an image capturing device in the railway vehicle, and a travel position of the railway vehicle when the captured image is obtained. The creating module creates, on the basis of the captured image and the travel position, a detection-region database that associates a target position with detection-region information expressing a three-dimensional shape of the extended region, the target position being a position corresponding to the travel position at which a detection region where an obstacle that interrupts travel of the railway vehicle in the captured image is detected is extended to an extended region outside a rolling stock gauge or a construction gauge of the railway vehicle.
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公开(公告)号：EP3812193A1
公开(公告)日：2021-04-28
申请号：EP19822844.7
申请日：2019-06-07
发明人： SETO, Naoto , KOBAYASHI, Hiroyuki , YAMASAKI, Yoshiaki , TAKAHASHI, Yusuke , HORIE, Masahiro , FUTAGAMI, Takuya , KAMO, Yushi , HATTORI, Yohei
摘要： The accuracy of speed calculated by a measurement apparatus is improved. The measurement apparatus includes a first speed calculation module, a second speed calculation module, and a determination module. The first speed calculation module calculates a first speed of a railway vehicle, based on satellites radio waves from a satellite in a global navigation satellite system (GNSS). The second speed calculation module calculates a second speed of the railway vehicle from a detection value of a sensor installed in the railway vehicle. The determination module determines which of the first speed and the second speed is employed based on a preset condition.
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公开(公告)号：EP4418003A1
公开(公告)日：2024-08-21
申请号：EP23193401.9
申请日：2023-08-25
发明人： KIMURA, Katsuyuki , KUBOTA, Hiroshi , JOBASHI, Masashi , HADA, Ryuji , NAKANO, Takahisa , KOBAYASHI, Hiroyuki , TAKAHASHI, Yusuke , OODAKE, Tatsuya , SETO, Naoto , SUZUKI, Yoshihiko
IPC分类号： G01S7/484 , G01S7/4865 , G01S17/42 , G01S17/86 , G01S17/931 , G01S7/481
CPC分类号： G01S17/931 , G01S17/86 , G01S17/42 , G01S7/4817 , G01S7/4865 , G01S7/484
摘要： According to one arrangement, a ranging apparatus includes a light source (23), a movable mirror (251), a light sensor (26), a measurement circuit (27), and a first control circuit (21). The movable mirror reflects each of first and second laser lights. The second laser light corresponds to the first laser light reflected by an external subject. The light sensor detects the second laser light reflected by the movable mirror. The measurement circuit measures a distance to the subject based on a timing of emission of the first laser light by the light source and a timing of detection of the second laser light by the light sensor. The first control circuit changes an emission direction of the first laser light based on a first signal from outside.
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公开(公告)号：EP3786028A1
公开(公告)日：2021-03-03
申请号：EP19793716.2
申请日：2019-04-22
发明人： FUTAGAMI, Takuya , KOBAYASHI, Hiroyuki , TAKAHASHI, Yusuke , HORIE, Masahiro , SAGUCHI, Taichi , NAKAMURA, Kohta , YASUDA, Koji , SETO, Naoto , HATTORI, Yohei
摘要： A safe-driving assistance apparatus according to an embodiment includes a storage unit, a position acquisition unit, a detection range acquisition unit, a detector, and an output unit. The storage unit stores detection range information representing a correspondence between a position of a railroad vehicle and a detection range where information about an obstacle present in a traveling direction of the railroad vehicle is to be detected. The position acquisition unit acquires a current position of the railroad vehicle. The detection range acquisition unit acquires the detection range corresponding to the current position, based on the current position acquired by the position acquisition unit and the detection range information stored in the storage unit. The detector detects information about the obstacle from the detection range acquired by the detection range acquisition unit. The output unit outputs a detection result of the detector.
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公开(公告)号：EP4181090A1
公开(公告)日：2023-05-17
申请号：EP22206634.2
申请日：2022-11-10
发明人： FUTAGAMI, Takuya , TAKAHASHI, Yusuke , SUZUKI, Yoshihiko , KOBAYASHI, Hiroyuki , OODAKE, Tatsuya , SETO, Naoto , KATO, Noriyasu , SEGAWA, Taisei , HATTORI, Yohei
IPC分类号： G06V20/58
摘要： According to one embodiment, the information processing apparatus includes an image interface, a communication interface, and a processor. The image interface is configured to acquire an image comprising an image of a railway track and an image of pieces of equipment. The communication interface is configured to acquire railway track information indicative of a geodetic coordinate of the railway track and equipment information indicative of geodetic coordinates of the pieces of equipment. The processor is configured to: specify, in the acquired image, a plurality of equipment regions in which the pieces of equipment appear; generate, based on coordinates of the equipment regions and the geodetic coordinates of the pieces of equipment, a transformation matrix for associating a geodetic coordinate with a coordinate in the acquired image; and specify a coordinate of the railway track by transforming the geodetic coordinate of the railway track using the transformation matrix.
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公开(公告)号：EP4082867A1
公开(公告)日：2022-11-02
申请号：EP20908391.4
申请日：2020-11-06
发明人： TAKAHASHI, Yusuke , KOBAYASHI, Hiroyuki , SETO, Naoto , YAMASAKI, Yoshiaki , HORIE, Masahiro , FUTAGAMI, Takuya , HATTORI, Yohei , ITO, Hiroaki , KATO, Noriyasu , HORIGUCHI, Kazutoshi
摘要： [Problem] To provide a camera inspection system that can automatically and easily determine the necessity of calibration of a camera mounted on a railway vehicle.
[Solution] A camera inspection system according to the present embodiment includes an image capturing portion that is mounted on a railway vehicle and captures images of a sign provided around a railway track on which the railway vehicle drives at first and second viewpoints. An arithmetic processor obtains a disparity between a first image of the sign at the first viewpoint and a second image of the sign at the second viewpoint. The arithmetic processor calculates a first distance between the railway vehicle and the sign based on the disparity between the first image and the second image. The arithmetic processor calculates a second distance between the railway vehicle and the sign based on known attribute information related to the size and/or the position of the sign and the length of the attribute information on the first or second image. The arithmetic processor determines whether a difference between the first distance and the second distance is larger than a threshold. A memory stores therein the attribute information.-
公开(公告)号：EP3782871A1
公开(公告)日：2021-02-24
申请号：EP19787860.6
申请日：2019-04-19
发明人： FUTAGAMI, Takuya , TAKAHASHI, Yusuke , KOBAYASHI, Hiroyuki , HORIE, Masahiro , SETO, Naoto , HATTORI, Yohei , FUJIURA, Kazuo , YAMASAKI, Yoshiaki , ITO, Hiroaki
摘要： A railway track identification device according to an embodiment includes an image acquisition unit, a railway track detection unit, a branch track detection unit, and a railway track detection result output unit. The image acquisition unit acquires a captured image acquired by capturing an image of a region lying in a traveling direction of a railway vehicle. The railway track detection unit detects, for each of a plurality of groups of pixels in the captured image, a railway track on a basis of a feature, the feature being based on a predetermined standard and being possible to be a criterion representing similarity to a railway track. The branch track detection unit detects whether there is a branch track branching off from the railway track being detected. The railway track detection result output unit outputs a result of detection by the railway track detection unit and a result of detection by the branch track detection unit.
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