Data analysis device, method, and storage medium
US10986115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2019 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Nov 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An abnormality in a manufacturing system is detected without extensive modification to the existing manufacturing systems. The data analysis device includes: a receiver configured to receive a packet transmitted between a manufacture control device and a manufacturing device; an analyzer configured to obtain the type of data included in a payload of the received packet from an IP address and a port number included in a header of the packet; a selector configured to select, based on the type of the data obtained by the analyzer, a syntax or rule corresponding to the type of the data; and a determiner configured to determine that the manufacturing system has an abnormality if the data included in the payload does not follow the syntax or rule corresponding to the type of the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.