Title:
CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2021131785
Kind Code:
A
Abstract:
To provide a control device that prevents excessive detection of malfunctions caused by discrepancy in timing at which multiple processing devices take in an input in a control device that executes the same process by the multiple processing devices.SOLUTION: A control device comprises: a storage part capable of data latching data with different acquisition timing; and an input control circuit 140 that controls, for each of a plurality of processors 100 and 110, whether to input the input data sent from a device to be controlled to the processor in response to an input request from the processor to the device to be controlled 150. The control device eliminates information difference caused by the acquisition timing difference to be made into input data by data latching the data to the storage part, adopts identity determination of each output data piece or majority vote as a criterion, determines that it is a malfunction if there is a non-identical combination of the output data pieces in the identity determination, and applies the majority vote when there are three or more systems of output data pieces and determines whether it is a malfunction or not based on the result of the majority vote.SELECTED DRAWING: Figure 1
Inventors:
SHIMAMURA KOTARO
IKEDA HISAHIRO
IKEDA HISAHIRO
Application Number:
JP2020027625A
Publication Date:
September 09, 2021
Filing Date:
February 20, 2020
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05B9/03; G05B9/02; G06F11/18
Attorney, Agent or Firm:
Patent Business Corporation Sunnext International Patent Office