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公开(公告)号：US20230391385A1
公开(公告)日：2023-12-07
申请号：US18248712
申请日：2021-10-08
Applicant: Hitachi, Ltd.
Inventor： Atsushi ODA , Jun KOIKE , Keiichi KATSUTA
IPC: B61L25/02
CPC classification number: B61L25/02
Abstract: An object of the invention is to reduce a calculation performance required for an obstacle detection device while maintaining an obstacle detection range in a wide range in an obstacle detection system where external sensor data mounted in a track transport system is used. Therefore, in the invention, an obstacle detection system includes: an external sensor configured to monitor surroundings of a train; and at least two or more obstacle detection processing units configured to perform obstacle detection processing for detecting an obstacle by using sensor data acquired by the external sensor, in which the obstacle detection processing is distributed to the two or more obstacle detection processing units according to sensor information of the sensor data.
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2.发明申请公开(公告)号：US20230052777A1
公开(公告)日：2023-02-16
申请号：US17796572
申请日：2020-08-31
Applicant: HITACHI, LTD.
Inventor： Yuhi TSUTSUMI , Keiji MAEKAWA , Atsushi ODA , Keiichi KATSUTA , Masaki TSUJI
Abstract: A running pattern creation device includes: a coordinate system that is formed of a positional coordinate axis and a vehicle velocity axis; a stopping avoidance zone position holding unit 1 configured to hold positional information on a stopping avoidance zone of a vehicle 8; a vehicle condition holding unit 2 configured to hold at least information on respective accelerations at an acceleration time, a deceleration time and a coasting time with respect to specification of the vehicle 8; a braking pattern creation unit 3 configured to create a braking pattern that is a pattern for stopping the vehicle 8 at a position other than the stopping avoidance zone using the positional information and information on acceleration at the deceleration time; a coasting pattern creation unit 4 configured to create a coasting pattern that is a pattern for stopping the vehicle 8 at a position other than the stopping avoidance zone using the positional information and the information on acceleration at the coasting time; an object region decision unit 5 configured to decide an object region 5 that is a region surrounded by the positional coordinate, the braking pattern and the coasting pattern; and a scheduled running pattern creation unit 6 configured to create a scheduled running pattern that is a running pattern avoiding the object region 5 and can be expressed by the coordinate system.
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Patent Agency Ranking
公开(公告)号：US20240034371A1
公开(公告)日：2024-02-01
申请号：US17768292
申请日：2020-09-18
Applicant: HITACHI, LTD.
Inventor： Atsushi ODA , Keiichi KATSUTA
IPC: B61L23/04 , B60L3/08 , B60L3/00 , G01S13/08 , G01S13/931
CPC classification number: B61L23/041 , B60L3/08 , B60L3/0015 , G01S13/08 , G01S13/931 , B60L2240/62 , G01S2013/9328
Abstract: A recording unit records an installation position of a ground installation object and an installation identifier of the ground installation object for each of a plurality of the ground installation objects installed beside a track on which a vehicle of a track transport system mounted with an external sensor travels; an installation object recognition unit specifies the installation identifier from external sensor information including information detected by the external sensor and recognizes the ground installation object corresponding to the installation identifier by referring to the recording unit; and a detection distance calculation unit calculates a detection distance of the external sensor. The detection distance calculation unit calculates the detection distance of the external sensor from a self-position of the vehicle at which the ground installation object is recognized and the installation position of the ground installation object recognized by the installation object recognition unit.
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公开(公告)号：US20230334995A1
公开(公告)日：2023-10-19
申请号：US18024805
申请日：2021-02-26
Applicant: Hitachi, Ltd.
Inventor： Kenji IMAMOTO , Mikio BANDO , Takahiro ITO , Keiichi KATSUTA
CPC classification number: G08G5/006 , G08G5/045 , G08G5/0013 , G08G5/0069
Abstract: The purpose is to provide a mobile body control system that can more appropriately perform control of a mobile body capable of vertical takeoff and landing. Comprised are a ground monitoring device (10), and a mobile body control device (20) that can communicate with the ground monitoring device (10). The mobile body control device (20) controls the flight of mobile bodies (51, 61, 71) that are capable of vertical takeoff and landing. The ground monitoring device (10) allocates flight routes (52, 62, 72) when the mobile bodies (51, 61, 71) do takeoff and landing, and is also characterized in that when there is an interference space (80) between one flight route (62) and another flight route (72), unless the one fight route (62) is reserved, flight is not permitted on that flight route.
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公开(公告)号：US20220284809A1
公开(公告)日：2022-09-08
申请号：US17636434
申请日：2020-05-15
Applicant: HITACHI, LTD.
Inventor： Keiichi KATSUTA , Junya TAKAHASHI , Takehito OGATA , Wataru TANAKA , Mariko MIZUOCHI , Kentaroh MAKI
Abstract: In a traffic flow control system, communication is performed with a travel control device of a moving body passing through a transportation route and the traffic flow of the transportation route is controlled. The traffic control system includes an entry authority management unit and a communication unit. In a transportation route divided into virtual areas, the entry authority management unit manages entry authority for each area, managing tokens in a number that corresponds to the area, and guiding entry of the moving body to the area by attaching entry authority to a token and delivering the resulting token to the travel control device. The communication unit communicates the entry authority and tokens to the travel control device.
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公开(公告)号：US20240019872A1
公开(公告)日：2024-01-18
申请号：US18030783
申请日：2021-10-12
Applicant: Hitachi, Ltd.
Inventor： Hiroyuki YAMADA , Noriyasu HASEJIMA , Go SAKAYORI , Takehito OGATA , Keiichi KATSUTA
IPC: G05D1/02
CPC classification number: G05D1/0297 , G05D2201/0216
Abstract: The present invention addresses the problem of efficiently moving a plurality of moving objects under different rule-based control systems without impairing safety. In order to solve this problem, a moving body task estimation unit 501 estimates moving body tasks 541 of a plurality of moving bodies 1 under different rule-based control systems, an optimum route generation unit 503 searches for optimum routes 542 using various combinations of a plurality of pieces of task information, and a common movement route creation unit 504 creates a common movement route 543 for the plurality of moving bodies by overlapping the obtained optimum routes 542.
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公开(公告)号：US20210001902A1
公开(公告)日：2021-01-07
申请号：US16977542
申请日：2019-01-28
Applicant: HITACHI, LTD.
Inventor： Yuhi TSUTSUMI , Atsushi ODA , Keiichi KATSUTA , Kazuo TOKUYAMA
Abstract: A train position estimation device which calculates the position of a vehicle traveling on a predetermined path and comprises a surroundings shape measurement unit that is installed in the vehicle and measures the shape of the surroundings of the current location of the vehicle and a map storage unit for storing surroundings shape data at positions measured in advance, the train position estimation device being characterized by comprising a start position estimation unit for storing the probability of presence of the vehicle at each position; a map retrieval section determination device for outputting surroundings shape data for each position in descending order of presence probability; and a matching processing device that compares the surroundings shape data for the current location with the retrieved surroundings shape data and outputs the position for which the difference therebetween is equal to or less than a predetermined threshold value.
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