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. 14, 2023
Filed:
Jul. 26, 2018
Nec Corporation, Tokyo, JP;
Masafumi Watanabe, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
In order to monitor the operational status of a plant, a plant monitoring apparatusincludes: a control program acquisition unitconfigured to acquire a control program for controlling the plant on the basis of sensor data from a sensor installed in the plant; a causal relationship extraction unitconfigured to extract, from the control program, causal relationships between a plurality of signals that are used in the plant; a causal relationship specification unitconfigured to specify the current state of the plurality of signals and compare the specified state and the extracted causal relationships to specify a causal relationship corresponding to the specified state; and a display unitconfigured to display the specified causal relationship on a screen.