Title:
PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/117065
Kind Code:
A1
Abstract:
Provided is a technology for enabling detection even when an abnormality is caused by a common cause failure. This processing device has: multiple processing circuit systems that have mutually different hardware configurations, and perform the same process and output the same output signal with respect to the same input signal; and an output signal comparison unit that compares the output signals from the multiple processing circuit systems, and outputs a comparison result. The multiple processing circuit systems have mutually different hardware configurations, so a different signal appears as the output signal even if a common cause failure occurs, and an abnormality can be detected by comparing those output signals.
Inventors:
IMAZAWA TAKAO (JP)
SHIRAISHI MASAHIRO (JP)
NISHIKAWA SATOSHI (JP)
DOKEN TOMOHIKO (JP)
SHIRAISHI MASAHIRO (JP)
NISHIKAWA SATOSHI (JP)
DOKEN TOMOHIKO (JP)
Application Number:
PCT/JP2017/045420
Publication Date:
June 28, 2018
Filing Date:
December 19, 2017
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G05B9/03
Foreign References:
| JP2009522644A | 2009-06-11 | |||
| JPH08171581A | 1996-07-02 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL PATENT FIRM (JP)
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