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:
Apr. 05, 2022
Filed:
Mar. 15, 2021
Panasonic Intellectual Property Corporation of America, Torrance, CA (US);
Yoshihiro Ujiie, Osaka, JP;
Tomoyuki Haga, Nara, JP;
Manabu Maeda, Osaka, JP;
Hideki Matsushima, Tokyo, JP;
Takeshi Kishikawa, Osaka, JP;
Junichi Tsurumi, Osaka, JP;
Hisashi Kashima, Kyoto, JP;
Yukino Toriumi, Kyoto, JP;
Takuya Kuwahara, Mie, JP;
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US);
Abstract
An abnormality detection method is provided. The abnormality detection method is for detecting an abnormality that may be transmitted to a bus in an on-board network system. The on-board network system includes a plurality of electronic controllers that transmit and receive messages via the bus in a mobility entity. In the abnormality detection method, for example, a gateway transmits identification information to a server and receives a response determining a unit time. An operation process is performed using feature information based on a number of messages received from the bus per the determined unit time and using a model indicating a criterion in terms of a message occurrence frequency. A judgment is made as to an abnormality according to a result of the operation process.