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:
Feb. 25, 2020
Filed:
Nov. 02, 2017
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
Provided is a controller () that includes a mechanical state acquisition section () that acquires information regarding a posture and an operation of a hydraulic excavator; a blind angle calculation section () that calculates a blind angle area from a seat in a cab () of the hydraulic excavator based on the information indicating the posture and the operation of the hydraulic excavator and acquired by the mechanical state acquisition section (); and a visibility level determination section () that determines a visibility level of an obstacle based on the blind angle area calculated by the blind angle calculation section () and a positional relationship calculated by a position relation calculation section (). Further, a warning level determination section () of the controller () adjusts a warning level in accordance with the visibility level determined by the visibility level determination section ().