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公开(公告)号：US20250020460A1
公开(公告)日：2025-01-16
申请号：US18713749
申请日：2022-11-21
Applicant: Komatsu Ltd.
Inventor： Tatsuya Shiga , Daisuke Tanaka
IPC: G01C9/02
Abstract: A management system for a work vehicle includes: a standard value calculation unit that calculates a standard value related to a detection value based on the detection value of a first attitude angle sensor when a work vehicle including the first attitude angle sensor stops at a predetermined position of a work site; and a diagnosis unit that determines presence or absence of abnormality of a second attitude angle sensor based on the standard value calculated by the standard value calculation unit and a detection value of the second attitude angle sensor when a work vehicle including the second attitude angle sensor stops at the predetermined position.
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公开(公告)号：US20220212597A1
公开(公告)日：2022-07-07
申请号：US17607117
申请日：2020-05-25
Applicant: Komatsu Ltd.
Inventor： Tatsuya Shiga , Kouichi Yamashita , Katsuki Awamori , Daisuke Tanaka
Abstract: A system of controlling an unmanned vehicle includes: a travel course data acquisition unit that acquires travel course data including blinker data for controlling a blinker provided in an unmanned vehicle; an operation data acquisition unit that acquires operation data of a blinker operation device provided in the unmanned vehicle; and a blinker control unit that controls the blinker based on the blinker data acquired by the travel course data acquisition unit when the operation data is acquired by the operation data acquisition unit at a time when the unmanned vehicle operates based on the travel course data.
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公开(公告)号：US20210096569A1
公开(公告)日：2021-04-01
申请号：US16982077
申请日：2019-02-27
Applicant: Komatsu Ltd.
Inventor： Daisuke Tanaka , Tatsuya Shiga , Mitsuhiro Ryuman , Atsushi Sakai
Abstract: A work machine control system includes: a position sensor detecting a position of a work machine traveling on a traveling path; first and second non-contact sensors provided in the work machine and detecting a position of an object around the work machine; a map data creation unit creating map data based on detection data of the position sensor and detection data of the first non-contact sensor; a first position calculation unit calculating a first position of the work machine by matching the map data and the detection data of the first non-contact sensor; a second position calculation unit calculating a second position of the work machine based on detection data of the second non-contact sensor; and an integrated position determination unit determining an integrated position of the work machine by integrating the first and second positions.
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公开(公告)号：US10031528B2
公开(公告)日：2018-07-24
申请号：US15126446
申请日：2016-02-01
Applicant: Komatsu Ltd.
Inventor： Atsushi Sakai , Masanori Minagawa , Daisuke Tanaka , Mitsuhiro Ryuman , Yosuke Kadono
IPC: G05D1/02
Abstract: A work machine control system is configured to control a work machine that travels on a travel route and includes a position detection unit, a non-contact sensor, and a control unit. The position detection unit detects a position of the work machine. The non-contact sensor detects a position of an object around the work machine. The control unit extracts information on an object to be detected from a detection result of the position detection unit and a detection result of the non-contact sensor, and excludes the information on an object to be detected inside a mask region that is set so as to include a terrain change portion that is a portion in which a terrain changes by use of a machine among portions around the travel route.
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公开(公告)号：US20170220044A1
公开(公告)日：2017-08-03
申请号：US15126446
申请日：2016-02-01
Applicant: Komatsu Ltd.
Inventor： Atsushi Sakai , Masanori Minagawa , Daisuke Tanaka , Mitsuhiro Ryuman , Yosuke Kadono
IPC: G05D1/02
CPC classification number: G05D1/0274 , G05D1/0219 , G05D2201/0202 , G05D2201/021
Abstract: A work machine control system is configured to control a work machine that travels on a travel route and includes a position detection unit, a non-contact sensor, and a control unit. The position detection unit detects a position of the work machine. The non-contact sensor detects a position of an object around the work machine. The control unit extracts information on an object to be detected from a detection result of the position detection unit and a detection result of the non-contact sensor, and excludes the information on an object to be detected inside a mask region that is set so as to include a terrain change portion that is a portion in which a terrain changes by use of a machine among portions around the travel route.
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Patent Agency Ranking
公开(公告)号：US20170220042A1
公开(公告)日：2017-08-03
申请号：US15124890
申请日：2016-02-01
Applicant: Komatsu Ltd.
Inventor： Atsushi Sakai , Masanori Minagawa , Daisuke Tanaka , Mitsuhiro Ryuman , Yosuke Kadono
CPC classification number: G05D1/0212 , E21C41/00 , E21F13/00 , G05D1/0088 , G05D1/0231 , G05D1/024 , G05D1/0257 , G05D1/027 , G05D1/0274 , G05D1/0278 , G05D2201/021
Abstract: A work machine control system is configured to control a work machine that travels in an operation region and includes a position detection unit, a non-contact sensor, and a control unit. The position detection unit detects a position of the work machine. The non-contact sensor detects a position of an object around the work machine. The control unit extracts information on an object to be detected from a detection result of the position detection unit and a detection result of the non-contact sensor, and excludes moving object information that is information on an object to be detected regarding a moving object that moves in the operation region.
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公开(公告)号：US10119830B2
公开(公告)日：2018-11-06
申请号：US15305669
申请日：2016-02-29
Applicant: Komatsu Ltd.
Inventor： Atsushi Sakai , Daisuke Tanaka , Mitsuhiro Ryuman
Abstract: A control system includes: a detector detecting a position of a work machine running on a running path; a non-contact sensor detecting an object at a side of the running path; a generator generating map data of a work site based on detection data from the detector and the non-contact sensor; a first storage storing past map data generated in the generator based on the detection data from the detector and the non-contact sensor acquired in a predetermined period in a past; a second storage storing current map data generated in the generator based on the detection data from the detector and the non-contact sensor; a first calculator calculating integrated map data by integrating the past map data and the current map data; and a second calculator by matching the integrated map data and the detection data from the non-contact sensor, calculates the position of the work machine.
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公开(公告)号：US20170248439A1
公开(公告)日：2017-08-31
申请号：US15305669
申请日：2016-02-29
Applicant: Komatsu Ltd.
Inventor： Atsushi Sakai , Daisuke Tanaka , Mitsuhiro Ryuman
CPC classification number: G01C21/3667 , G01C21/00 , G01C21/005 , G01C21/20 , G01C21/32 , G05D1/021 , G05D1/0212 , G05D1/024 , G05D1/027 , G05D1/0272 , G05D1/0274 , G05D1/0278 , G05D2201/021 , G09B29/004
Abstract: A control system includes: a detector detecting a position of a work machine running on a running path; a non-contact sensor detecting an object at a side of the running path; a generator generating map data of a work site based on detection data from the detector and the non-contact sensor; a first storage storing past map data generated in the generator based on the detection data from the detector and the non-contact sensor acquired in a predetermined period in a past; a second storage storing current map data generated in the generator based on the detection data from the detector and the non-contact sensor; a first calculator calculating integrated map data by integrating the past map data and the current map data; and a second calculator by matching the integrated map data and the detection data from the non-contact sensor, calculates the position of the work machine.
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公开(公告)号：US11835643B2
公开(公告)日：2023-12-05
申请号：US16982775
申请日：2019-02-27
Applicant: Komatsu Ltd.
Inventor： Daisuke Tanaka , Tatsuya Shiga
IPC: G01S7/40 , G01S13/86 , G01S13/931 , G01S19/46
CPC classification number: G01S7/40 , G01S13/86 , G01S13/931 , G01S19/46 , G01S2013/932
Abstract: A work machine control method includes: acquiring a detection position of a landmark detected by a non-contact sensor provided in a work machine in traveling of the work machine traveling on a traveling path; calculating a first relative distance between the non-contact sensor and the landmark on a basis of the detection position of the landmark; calculating a second relative distance between the non-contact sensor and the landmark on a basis of a registration position of the landmark; calculating a correction value relating to a relative distance between the non-contact sensor and the landmark on a basis of the first relative distance and the second relative distance; correcting the first relative distance on a basis of the correction value to calculate a corrected relative distance between the non-contact sensor and the landmark; and controlling a traveling state of the work machine on a basis of the corrected relative distance.
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公开(公告)号：US20210055126A1
公开(公告)日：2021-02-25
申请号：US16967156
申请日：2019-02-05
Applicant: Komatsu Ltd.
Inventor： Daisuke Tanaka , Tatsuya Shiga
Abstract: A control system for a work machine includes a position sensor that detects a position of a work machine traveling on a traveling road, a non-contact sensor that detects a position of an object around the work machine, and a map data creation unit that creates map data on the basis of a detection point on the object and detection data of the position sensor, the detection point being detected by the non-contact sensor and satisfying a prescribed height condition.
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