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. 28, 2021
Filed:
Nov. 19, 2019
Hitachi, Ltd., Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A failure detection device that detects a failure in a plurality of external sensors onboard a vehicle, the failure detection device comprises: an overlapping region storage unit that stores an overlapping region of detection areas of the external sensors; an environment performance storage unit that stores an environment-dependent performance of sensing of the external sensors; an environment information acquisition unit that acquires environment information about the vehicle; a recognition result comparison unit that compares recognition results of an object in the overlapping region from the external sensors; a failure likelihood computation unit that computes a failure likelihood of each external sensor based on a comparison result of the recognition results, the environment information, and the environment-dependent performance; and a failure determination unit that determines a failure in each external sensor based on the failure likelihood of each of the external sensors.