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.

Date of Patent:
Mar. 04, 2025

Filed:

Feb. 16, 2022
Applicant:

Hitachi Construction Machinery Co., Ltd., Tokyo, JP;

Inventors:

Masaki Kanai, Tokyo, JP;

Katsuaki Tanaka, Tsuchiura, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60W 60/00 (2020.01); G07C 5/00 (2006.01);
U.S. Cl.
CPC ...
B60W 60/001 (2020.02); G07C 5/006 (2013.01); B60W 2554/4041 (2020.02);
Abstract

Provided is a vehicle management system capable of securing safety of an escorted vehicle while suppressing a decrease in productivity by improving setting of an entry prohibited area of an unmanned vehicle at the time when an abnormal state of position information on the escorted vehicle has been detected. The vehicle management system is configured such that an unmanned vehicle, an escorted vehicle, an escorting vehicle, and a control station that controls the unmanned vehicle on the basis of position information on the escorting vehicle and position information on the escorted vehicle are capable of communicating with each other. A controller of the control station computes, when an abnormal state of the position information on the escorted vehicle has been detected, an inter-vehicle distance between the escorting vehicle and the escorted vehicle before the detection of the abnormal state, to thereby set an entry prohibited area of the unmanned vehicle on the basis of the current position information on the escorting vehicle and the inter-vehicle distance. An output device of the escorting vehicle outputs an alarm that prompts maintenance of the inter-vehicle distance when the abnormal state of the position information on the escorted vehicle has been detected.


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