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公开(公告)号：US20210116487A1
公开(公告)日：2021-04-22
申请号：US16788913
申请日：2020-02-12
发明人： Ji Young RHEE , Jae Won SHIM , Nag Young KIM , Jin Hwan KIM , Oh Sun KWON , Hyung Bae KIM
摘要： Disclosed are a pothole sign detection system and method of a road pavement, and a recording medium having recorded thereon a computer readable program for executing the method. The pothole sign detection system includes an electromagnetic wave transmitting unit, an electromagnetic wave receiving unit, an electromagnetic wave receiving unit, a dielectric constant calculation unit, a crack rate diagnosis unit, a pavement layer separation state diagnosis unit, an attenuation calculation unit, a pavement layer inside state diagnosis unit, and a pothole sign detection unit.
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公开(公告)号：US20190093295A1
公开(公告)日：2019-03-28
申请号：US15903748
申请日：2018-02-23
发明人： Doo-pyo HONG , Doo-haeng LEE , Geon Cheol SEO , Hong-kwan SEO , Kyung Ju LEE
CPC分类号： E01C23/222 , B05B7/0884 , B60P3/30
摘要： Provided are an apparatus and a method of constructing a guide line for a road, and the apparatus includes a painting apparatus part that stores a lane paint, is driven by receiving power, and supplies the lane paint, a nozzle part that is installed in the painting apparatus part and sprays the lane paint supplied from the painting apparatus part on a road to form a guide line for a road including at least one of a directional mark and a lane, and an adjustment part that is installed in the painting apparatus part and adjusts at least one of a location and an interval of the lane paint sprayed from the nozzle part.
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公开(公告)号：US11306450B2
公开(公告)日：2022-04-19
申请号：US16474471
申请日：2017-12-28
发明人： Dueck Su Sohn , Jae Hoon Lee
摘要： Provided according to the present invention is a road surface profiler performance measuring instrument, which implements a virtual road surface state in order to assess the performance of a road surface profiler (A) including a distance measurement unit (10) and a flatness measurement unit (20), the measuring instrument comprising: a travel operation unit (100) for augmenting movement distance information (a) generated by the distance measurement unit (10); and a height adjustment unit (200) for changing height information (b) generated by the flatness measurement unit (20).
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公开(公告)号：US11619496B2
公开(公告)日：2023-04-04
申请号：US16729450
申请日：2019-12-29
申请人： KOREA EXPRESSWAY CORP. , U1GIS
发明人： In Gu Choi , Jae Hyung Park , Gi Chang Kim , Duk Jung Kim
摘要： According to an embodiment, a system includes at least one change detecting device that includes a map information storage unit receiving a high-definition map including a property of each road facility object and spatial coordinates of a feature point from a map updating server and storing the received high-definition map, an object coordinates obtaining unit recognizing at least one road facility object from the road image and obtaining a property of the recognized object and spatial coordinates of a feature point. and a changed object detecting unit comparing the property of the recognized object and the spatial coordinates of the feature point with the high-definition map and, if a change object is detected, transmitting object change information including a property and feature point spatial coordinates of the change object to the map updating server.
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公开(公告)号：US11255979B2
公开(公告)日：2022-02-22
申请号：US16683292
申请日：2019-11-14
申请人： KOREA EXPRESSWAY CORP. , U1GIS
发明人： Oh Cheol Kwon , In Gu Choi , Shi Han Kim , Jae Hyung Park , Sung Hwan Kim , Gi Chang Kim , Duk Jung Kim
摘要： According to an embodiment, an apparatus and method for generating distribution information may include periodically generating GNSS information including GNSS positioning information and a positioning time, generating image information including an image of at least one or more facility object, at the positioning time, while a vehicle drives, obtaining precise positioning information for a capturing position at the positioning time based on the image information, a high-definition map, and the GNSS information, calculating a positioning difference which is a difference between the GNSS positioning information and the precise positioning information, and generating distribution information including the GNSS information, the positioning difference, and the precise positioning information. The high-definition map includes information for feature point spatial coordinates and a property for each facility object.
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公开(公告)号：US11175408B2
公开(公告)日：2021-11-16
申请号：US16683294
申请日：2019-11-14
发明人： Oh Cheol Kwon , In Gu Choi , Shi Han Kim , Jae Hyung Park , Sung Hwan Kim , Gi Chang Kim , Duk Jung Kim
摘要： According to an embodiment, an apparatus for precise position correction using a positioning difference comprises a first distribution information obtaining unit gathering first distribution information from an external terminal, a global navigation satellite system (GNSS) receiver obtaining a GNSS positioning value of the apparatus based on a GNSS, and a positioning correcting unit obtain a corrected location of the apparatus by correcting the GNSS positioning value using the gathered first distribution information. The first distribution information includes a GNSS positioning value of the external terminal, a GNSS positioning time, a precise positioning value, and a positioning difference between the GNSS positioning value and the precise positioning value.
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公开(公告)号：US20210190512A1
公开(公告)日：2021-06-24
申请号：US16729450
申请日：2019-12-29
申请人： KOREA EXPRESSWAY CORP. , U1GIS
发明人： In Gu Choi , Jae Hyung Park , Gi Chang Kim , Duk Jung Kim
摘要： According to an embodiment, a system includes at least one change detecting device that includes a map information storage unit receiving a high-definition map including a property of each road facility object and spatial coordinates of a feature point from a map updating server and storing the received high-definition map, an object coordinates obtaining unit recognizing at least one road facility object from the road image and obtaining a property of the recognized object and spatial coordinates of a feature point. and a changed object detecting unit comparing the property of the recognized object and the spatial coordinates of the feature point with the high-definition map and, if a change object is detected, transmitting object change information including a property and feature point spatial coordinates of the change object to the map updating server.
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公开(公告)号：US10364537B2
公开(公告)日：2019-07-30
申请号：US15903748
申请日：2018-02-23
发明人： Doo-pyo Hong , Doo-haeng Lee , Geon Cheol Seo , Hong-kwan Seo , Kyung Ju Lee
摘要： An apparatus is for constructing a guide line for a road. The apparatus includes a painting apparatus part that stores a lane paint, is driven by receiving power, and supplies the lane paint. A nozzle part is installed in the painting apparatus part and sprays the lane paint supplied from the painting apparatus part on a road to form a guide line for a road including at least one of a directional mark and a lane. An adjustment part is installed in the painting apparatus part and adjusts at least one of a location and an interval of the lane paint sprayed from the nozzle part.
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公开(公告)号：US20210190526A1
公开(公告)日：2021-06-24
申请号：US16729448
申请日：2019-12-29
申请人： KOREA EXPRESSWAY CORP. , U1GIS
发明人： In Gu CHOI , Jae Hyung Park , Gi Chang Kim , Duk Jung Kim
摘要： According to an embodiment, there is provided a system creating a high-definition map based on a camera. The system includes at least one map creating device that includes an object recognizing unit recognizing, per frame of the road image, a road facility object including at least one of a GCP object and an ordinary object and a property, a feature point extracting unit extracting a feature point of at least one or more road facility objects from the road image, a feature point tracking unit matching and tracking the feature point in consecutive frames of the road image, a coordinate determining unit obtaining relative spatial coordinates of the feature point to minimize a difference between camera pose information predicted from the tracked feature point and calculated camera pose information, and a correcting unit obtaining absolute spatial coordinates of the feature point.
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公开(公告)号：US20210072400A1
公开(公告)日：2021-03-11
申请号：US16683294
申请日：2019-11-14
发明人： Oh Cheol KWON , In Gu Choi , Shi Han Kim , Jae Hyung Park , Sung Hwan Kim , Gi Chang Kim , Duk Jung Kim
摘要： According to an embodiment, an apparatus for precise position correction using a positioning difference comprises a first distribution information obtaining unit gathering first distribution information from an external terminal, a global navigation satellite system (GNSS) receiver obtaining a GNSS positioning value of the apparatus based on a GNSS, and a positioning correcting unit obtain a corrected location of the apparatus by correcting the GNSS positioning value using the gathered first distribution information. The first distribution information includes a GNSS positioning value of the external terminal, a GNSS positioning time, a precise positioning value, and a positioning difference between the GNSS positioning value and the precise positioning value.
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