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公开(公告)号：US12085395B2
公开(公告)日：2024-09-10
申请号：US17042940
申请日：2018-06-12
CPC分类号： G01C21/32 , G06F16/29 , G09B29/003
摘要： A map generation device is configured to determine evaluation value of each of a plurality of evaluation items that serve as indices for evaluation the reliability of the positional information of the planimetric feature. The plurality of evaluation items include any of an error amount when arrangement of composing points of the planimetric feature is approximated, a parallelism between an arrangement direction of composing points of the planimetric feature and a movement trajectory of the measuring vehicle, a distance between a position indicated by the position information of the planimetric feature and a position of the measuring vehicle when the position of the planimetric feature is measured, an absolute value of reflection intensity of a position of the planimetric feature obtained from the measurement information or a difference between a position of the planimetric feature and surrounding reflection intensity of the planimetric feature, and so on.
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公开(公告)号：US11625851B2
公开(公告)日：2023-04-11
申请号：US17283250
申请日：2019-10-15
发明人： Mamoru Miura , Ayako Nemoto , Yoshimi Moriya , Hideyuki Masui , Yusuke Itani , Masashi Watanabe , Katsuyuki Kamei , Takuma Kadoya
IPC分类号： G06T7/70 , G06V30/10 , G06V20/62 , G06V20/56 , G06V20/64 , G06V10/25 , G06V30/146 , G06V30/19 , G06V10/80 , G06V10/82 , G06V10/10 , G06V10/44 , G06V20/58
摘要： A geographic object recognition unit (120) recognizes, using image data (192) obtained by photographing in a measurement region where a geographic object exists, a type of the geographic object from an image that the image data (192) represents. A position specification unit (130) specifies, using three-dimensional point cloud data (191) indicating a three-dimensional coordinate value of each of a plurality of points in the measurement region, a position of the geographic object.
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公开(公告)号：US10093332B2
公开(公告)日：2018-10-09
申请号：US15309561
申请日：2014-06-25
发明人： Katsuyuki Kamei , Masashi Watanabe
IPC分类号： G09G5/00 , B61L99/00 , B61L23/04 , G01B11/00 , G01B21/16 , G01B21/20 , G06T7/00 , G06T11/60 , G06T19/20 , B61L25/02
摘要： Distance measurement means measures a distance from a measurement point to a construction gauge in a route of a track. A range identification unit identifies whether or not a measurement point falls within a predetermined range from the construction gauge based on the measured distance. A ground feature identification unit identifies whether or not the measurement point is a measurement point of a feature on a ground. Drawing means draws in a plan view a measurement point identified as a measurement point of a feature on the ground by the ground feature identification unit among the measurement points, and draws in side views a measurement point identified as not a measurement point of a feature on the ground. The drawing means performs different drawing processes on a measurement point identified as falling within the predetermined range from the construction gauge among the measurement points and on a measurement point identified as not falling within the predetermined range from the construction gauge among the measurement points.
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公开(公告)号：US11002552B2
公开(公告)日：2021-05-11
申请号：US16079251
申请日：2017-01-06
摘要： A slope sample value at a sample point on a target route and a distance sample value from a reference point on the target route to the sample point are calculated based on three-dimensional position data of the target route. Undetermined elements contained in a model formula for the approximation formula representing relation between the slope sample value and the distance sample value are determined using an error evaluation formula for the model formula. The error evaluation formula contains a slope error evaluation component for evaluating a slope error between the slope sample value and a slope model value that is calculated using the model formula, and an altitude error evaluation component for evaluating an altitude error between an altitude model value that is obtained through integration of the slope model value and an altitude value that is obtained from the three-dimensional position data.
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公开(公告)号：US10286809B2
公开(公告)日：2019-05-14
申请号：US15323878
申请日：2015-02-26
发明人： Yuji Igarashi , Masashi Watanabe
摘要： An electric motor is driven using a power stored in a storage battery as a power source. A power management system includes a power management device and a travel control device. The power management device includes a travel control planning unit and a section valid road slope information storage unit. The section valid road slope information storage unit stores section road slope information including information about a slope of a road section where a vehicle travels. On the basis of section valid road slope information read from the section valid road slope information storage unit, the travel control planning unit creates a travel control plan for traveling the vehicle. The travel control device performs travel control of the vehicle on the basis of the travel control plan. One of the section valid road slope information which shows a downward slope in traveling of the vehicle has a slope steeper than a predetermined slope depending on the vehicle.
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公开(公告)号：US10309763B2
公开(公告)日：2019-06-04
申请号：US15500636
申请日：2015-03-11
IPC分类号： B61L15/00 , B61L23/04 , B61L25/02 , B61L27/00 , E01B35/00 , G01B11/00 , G01B11/24 , G01B11/25 , G01C15/00
摘要： A rail position measurement device that measures a three-dimensional position of a rail using a measurement vehicle includes: a position posture measurement device to measure a position and a posture of the measurement vehicle; and a laser scanner that is a sensor installed on the measurement vehicle so as to be capable of irradiating at least a web and a bottom of a side surface of the rail with laser light and used for measuring the three-dimensional position of the rail.
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公开(公告)号：US11959769B2
公开(公告)日：2024-04-16
申请号：US17273316
申请日：2019-10-01
IPC分类号： G01C21/00
CPC分类号： G01C21/3837 , G01C21/3815
摘要： An information processing device includes processing circuitry configured to acquire feature measurement information indicating locations of features including a road having a boundary and trajectory information indicating a trajectory along the road. Additionally, the processing circuitry is further configured to generate candidate location information indicating locations of candidate elements for the boundary, based on the acquired feature measurement information. Further, the processing circuitry is configured to select candidate elements from among the candidate elements indicated by the generated candidate location information, based on the acquired trajectory information. Finally, the processing circuitry is configured to generate boundary location information indicating determined locations of the boundary, using the selected candidate elements.
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公开(公告)号：US11009348B2
公开(公告)日：2021-05-18
申请号：US16622984
申请日：2017-07-31
摘要： The interior of a first measurement surface and the interior of a second measurement surface traveling together with a measuring vehicle are scanned to acquire first measurement coordinate points and second measurement coordinate points, respectively. A first comparison point cloud representing a comparison part on a surface of a structure is extracted from the first measurement coordinate points. A second comparison point cloud representing a comparison part on the surface of the structure is extracted from the second measurement coordinate points. A difference between the first comparison point cloud and the second comparison point cloud corresponding to measurement of a common comparison part on the surface of the structure is calculated. Error having time dependence included in the first measurement coordinate points and the second measurement coordinate points is calculated on the basis of the calculated difference. The measurement coordinate points are corrected on the basis of the calculated error.
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公开(公告)号：US12020491B2
公开(公告)日：2024-06-25
申请号：US17276496
申请日：2019-10-10
CPC分类号： G06V20/588 , G06T7/13 , G06T7/181 , G06T7/70 , G06T2207/30256 , G06V2201/07
摘要： A lane link generation device includes an acquisition unit, a lane link generation unit, and a connection unit. The connection unit acquires first and second sections representing vehicle traveling areas. The lane link generation unit generates lane links in the first section and the second section. When the lane link of the first section and the lane link of the second section have endpoints, the connection unit determines a connection destination endpoint which is an endpoint of a connection destination to be connected to an endpoint and which is an endpoint belonging to a different section, based on determination rule information. The connection unit generates a lane link that connects the endpoint to the determined connection destination endpoint.
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