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公开(公告)号：US20200159180A1
公开(公告)日：2020-05-21
申请号：US16617705
申请日：2017-06-15
Applicant: Hitachi, Ltd.
Inventor： Tasuku ISHIGOOKA , Yuki HORITA
IPC: G05B19/048
Abstract: Fail operational that can guarantee stability of control while suppressing cost increase is difficult. A control controller according to the present invention stores information necessary for recovery in a normal travel mode in time series in a backup, and thus control software can be recovered from the backup in real time if a failure occurs in the system.
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公开(公告)号：US20230267837A1
公开(公告)日：2023-08-24
申请号：US18020203
申请日：2021-04-20
Applicant: Hitachi, Ltd.
Inventor： Tasuku ISHIGOOKA , Satoshi OTSUKA
IPC: G08G1/16 , B60W60/00 , B60W30/14 , B60W30/09 , B60W30/095
CPC classification number: G08G1/16 , B60W60/0015 , B60W30/143 , B60W30/09 , B60W30/0956 , B60W30/0953 , B60W2554/80
Abstract: Provided is a traffic control system capable of ensuring safety even when an autonomous mobile body, a manned mobile body, or a pedestrian has committed a safety rule violation. This traffic control system comprises a mobile body, an infrastructure sensor that monitors the mobile body and a pedestrian within a field, and a safety monitoring device that communicates wirelessly with the mobile body. The traffic control system is characterized by the safety monitoring device including a rule violation detection unit that detects, on the basis of output from the infrastructure sensor, a rule violation by the mobile body or the pedestrian within the field, and a safe action instruction unit that instructs the mobile body to execute a safe action or safe action preparation corresponding to the rule violation when the rule violation is detected, and the mobile body including a speed control unit that, regardless of the instruction from the safety monitoring device, outputs a control command for decelerating the mobile body if the wireless communication speed thereof with the safety monitoring device is greater than or equal to a prescribed threshold.
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Patent Agency Ranking
公开(公告)号：US20210216361A1
公开(公告)日：2021-07-15
申请号：US15734055
申请日：2018-06-13
Applicant: Hitachi, Ltd.
Inventor： Tasuku ISHIGOOKA
Abstract: The present disclosure improves usability and stability of a control system while suppressing resource consumption. A control controller according to the present disclosure divides, using partitioning, function groups for which control is ongoing and function groups to be updated, and updates, in accordance with conditions, only the function groups to be updated, thereby updating the required control functions while continuing appropriate control processes.
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公开(公告)号：US20220182498A1
公开(公告)日：2022-06-09
申请号：US17437346
申请日：2019-12-20
Applicant: HITACHI, LTD.
Inventor： Rathour Swarn SINGH , Tsunamichi TSUKIDATE , Tasuku ISHIGOOKA
Abstract: A data communication acquires a map image, determines high- and low-risk areas in the map, determines whether to transmit data related to the high- or low-risk areas, detects objects around the system, determines a position in the map image for each of the objects detected, determines whether the objects belongs to the high- or low-risk areas, determines a data compression ratio for each of the objects detected, compresses data related to each of the objects, compresses data related to each of the objects belonging to the high-risk area when data related to the high-risk area is determined to be transmitted, compresses data related to each of the objects belonging to the low-risk area when data related to the low-risk area is determined to be transmitted, receives reply data replied in association with the compression data transmitted, and makes a decision in accordance with the reply data.
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公开(公告)号：US20150309920A1
公开(公告)日：2015-10-29
申请号：US14697800
申请日：2015-04-28
Applicant: Hitachi, Ltd.
Inventor： Tasuku ISHIGOOKA , Fumio NARISAWA , Kohei SAKURAI , Neeraj SURI , Habib SAISSI , Thorsten PIPER , Stefan WINTER
IPC: G06F11/36
CPC classification number: G06F11/3688 , G06F11/3608 , G06F17/5009 , G06F2217/86
Abstract: The present invention relates to a method and a system for testing control software of a controlled system, the controlled system comprising one or more electronic control units, one or more actuators, and one or more sensors, each sensor being adapted to input a respective sensor signal to at least one of the one or more electronic control units and each actuator being adapted to act responsive to respective control signals input from at least one of the electronic control units, and each electronic control unit being configured to execute a respective executable control program based on control software code data to output one or more control signals to the one or more actuators on the basis of input sensor signals. The control testing process comprises providing control software code data for each of the one or more electronic control units, providing simulation code data for the controlled system, creating a system model based on the provided control software code data provided for each of the one or more electronic control units and the provided simulation code data, creating an executable program based on the created system model, and performing a software verification process on the basis of the executable program.
Abstract translation: 本发明涉及一种用于测试受控系统的控制软件的方法和系统，所述受控系统包括一个或多个电子控制单元，一个或多个致动器以及一个或多个传感器，每个传感器适于输入相应的传感器 信号到所述一个或多个电子控制单元中的至少一个，并且每个致动器适于响应于从所述电子控制单元中的至少一个输入的相应控制信号而动作，并且每个电子控制单元被配置为执行相应的可执行控制程序 基于控制软件代码数据，以基于输入传感器信号向一个或多个致动器输出一个或多个控制信号。 控制测试过程包括为一个或多个电子控制单元中的每一个提供控制软件代码数据，为受控系统提供模拟代码数据，基于为所述一个或多个电子控制单元中的每一个提供的所提供的控制软件代码数据创建系统模型 电子控制单元和所提供的模拟代码数据，基于所创建的系统模型创建可执行程序，并且基于可执行程序执行软件验证过程。
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公开(公告)号：US20240119827A1
公开(公告)日：2024-04-11
申请号：US18285981
申请日：2022-03-01
Applicant: Hitachi, Ltd.
Inventor： Tasuku ISHIGOOKA
CPC classification number: G08B25/016 , G08G1/0112 , H04W4/40
Abstract: A control system comprises: moving body detecting units transmitting information about moving bodies; and a control system receives the moving body information and transmits it to a control processing unit. The control system comprises: a surplus time calculation unit that calculates a first surplus time on the basis of the response time and an estimated time required for communication control of the moving body; a processing management unit that determines an execution sequence for the control information; an application unit that calculates control information on the basis of the information about moving bodies and the execution sequence determined by the processing management unit; and a transmission control unit that calculates a second surplus time on the basis of the response time of the moving body and the actual time required for communication control, and transmits control information to the control processing unit according to the second surplus time.
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公开(公告)号：US20230322261A1
公开(公告)日：2023-10-12
申请号：US18025022
申请日：2021-08-27
Applicant: HITACHI, LTD.
Inventor： Satoshi OTSUKA , Tasuku ISHIGOOKA
CPC classification number: B60W60/0015 , B60W50/0205 , B60W2554/4046
Abstract: An autonomous travel control system having a vehicle control system that is mounted in a vehicle and that controls automatic driving of the vehicle, and a safety monitoring system for monitoring a field F, are connected so as to enable communication. The safety monitoring system is provided with: a monitoring processing unit for recognizing an object and creating outside world recognition information; a reception unit for receiving automatic driving control information transmitted from the vehicle control system; a verification unit for verifying, on the basis of the outside world recognition information, the safety of the automatic driving control information received by the reception unit; and a transmission unit for transmitting the result of the verification by the verification unit to the vehicle control system. The vehicle control system controls automatic driving of the vehicle on the basis of the verification result transmitted by the safety monitoring system.
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