Controller and data storage method

Abstract

In the disclosure, HMI data is mirrored under high robustness. An IPC operates in an OS and a real time OS. The IPC includes a first data managing part that sequentially performs acquisition processing of the HMI data by an HMI application of the OS, a buffer memorizing the HMI data by the first data managing part, a second data managing part that exchanges data with the first data managing part by a mirroring processing part of the real time OS, and a mirroring data holding part memorizing data by the second data managing part. The data managing part memorizes the HMI data in the buffer for each acquisition of the HMI data and transmits the HMI data to the second data managing part as mirroring data, the data managing part memorizes the mirroring data in the mirroring data holding part for each reception of the minoring data.

Dependencies are inferred from the claim text.