公开(公告)号：US20230409176A1

公开(公告)日：2023-12-21

申请号：US18194066

申请日：2023-03-31

Applicant: HITACHI, LTD.

Inventor： Natsumi WATANABE ,  Masaya ITOH ,  Hiroyuki YAMADA ,  Satoshi OTSUKA

IPC: G06F3/0484 ,  B60W50/14 ,  G06F3/0482

CPC classification number: G06F3/0484 ,  B60W50/14 ,  B60W60/0015 ,  B60W2050/146 ,  G06F3/0482

Abstract: A safety design support system includes a display control unit that causes a display means to display main function design information in which items related to a main function of a product to be designed are hierarchically ordered, and safety design information in which items related to safety design of the product are hierarchically ordered. In accordance with change or addition of an item of the main function design information, the change or addition being made by a user's input operation, the display control unit causes the display means to display instruction information that prompts the user to carry out a next input operation.

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.

公开(公告)号：US20240053766A1

公开(公告)日：2024-02-15

申请号：US18271527

申请日：2021-11-02

Applicant: Hitachi, Ltd.

Inventor： Nobuyasu KANEKAWA ,  Junya TAKAHASHI ,  Satoshi OTSUKA ,  Hiroyuki YAMADA

IPC: G05D1/02

CPC classification number: G05D1/0289

Abstract: The problem of ensuring safety and work efficiency for the actions of a control target is addressed in an environment in which different types of control systems coexist. A safety control server controls the actions of respective control targets in differing systems and includes an action adjustment unit that, for each control target of differing control systems, outputs to a control target an action adjustment instruction for adjusting the action of that control target when a contention occurs in which the action of that control target deviates from an assumed control result. An action plan adjustment unit, when the adjustment of the action satisfies a prescribed condition, adjusts an action plan indicating an action rule for achieving a function and avoiding a contention in a control target; and a safety rule adjustment unit adjusts a safety rule indicating an action rule for avoiding a contention in the control target.

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

IPC: B60W60/00 ,  B60W50/02

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.