Embedded control device
AssigneeHitachi, Ltd.
InventorsKentaro Yoshimura, Takeshi Fukuda, Fumio Narisawa
Life of this patent
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Abstract
There is provided an embedded control device having high real time performance and capable of securing data concurrency. The embedded control device according to the present invention includes disclosure data and stored data as control data to be disclosed to a data reference component. The embedded control device changes over a reference destination for the data reference component either to the disclosure data or to the stored data, depending on which of the execution priority of the data disclosing source component and the execution priority of the data reference component is higher.
Claims12
An embedded control device comprising:
- control data used in control calculation for controlling a control target;
- a data disclosing source component that is a software component, configured to disclose the control data to another software component;
- a data reference component that is a software component, configured to refer to the control data;
- and
- a priority definition unit configured to define execution priority of each of the software components,
- the data disclosing source component including:
- disclosure data and stored data as the control data to be disclosed to the data reference component;
- and
- a reference destination changeover unit configured to change over a reference destination of the control data to which the data reference component refers either to the disclosure data or to the stored data, depending on which of the execution priority of the data disclosing source component and the execution priority of the data reference component is higher.
Dependencies are inferred from the claim text.