The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2026
Filed:
Apr. 20, 2021
Hitachi, Ltd., Tokyo, JP;
Tasuku Ishigooka, Tokyo, JP;
Satoshi Otsuka, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A traffic control system includes 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 safety monitoring device includes a rule violation detection unit that detects, based on output from the infrastructure sensor, a rule violation by the mobile body or the pedestrian, 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. The mobile body includes a speed control unit that 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 to ensure safety even when a safety rule violation has occurred.