External Storage Format for Power Converter Control Data
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Solution Overview
Problem
Existing control apparatuses for power conversion systems face limitations in program capacity, preventing the adoption of common file systems and external storage devices, which restrict data storage from power conversion systems.
Innovation Solution
An external storage device for power conversion systems that uses a unique data format not relying on terminal apparatus file systems, allowing data storage through a smaller program capacity, comprising file storage areas and a file management area for data formatting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a common file system applied to terminal apparatus is adopted, then data storage compatibility is improved, but program capacity requirement increases
Solution Approach 1:
The patent extracts the essential file management functions from a complete file system, implementing only the necessary data storage and retrieval capabilities in the control apparatus. This selective extraction allows compatibility with external storage devices without requiring the full program capacity of a terminal apparatus file system.
Solution Approach 2:
The control apparatus implements a universal data interface that can work with multiple types of external storage devices using a standardized format. This multi-functional approach enables the same program to handle different storage media without requiring device-specific file system implementations, reducing overall program capacity requirements.
2Quantity of substance
If program capacity is reduced, then control apparatus size is decreased, but data storage capability is worsened
Solution Approach 1:
The patent introduces an intermediary data format layer between the control apparatus and external storage devices. This intermediary format handles the complexity of data storage externally, allowing the control apparatus to maintain a small program capacity while still achieving comprehensive data storage capability through the standardized interface.
3Productivity
If a standardized data format is implemented, then data retrieval efficiency is improved, but initial data processing time increases
Solution Approach 1:
The patent applies preliminary formatting to data before storage, organizing it according to the standardized format in advance. This preliminary action ensures that data retrieval operations can proceed efficiently without requiring complex processing during read operations, thus improving productivity while accepting minimal initial processing overhead.
Data Source
AI summary
An external storage device for a control apparatus of a power conversion system to which data from a power conversion system can be written even by a program small in size. The external storage device for the control apparatus of the power conversion system includes: a plurality of file storage areas each configured to store data from the power conversion system; and a file management area configured to manage data for setting a format not using a file system applied to a terminal apparatus, as a format for storage of the data in the plurality of file storage areas.