Granted Patent B2

US 12,556,109 · App. 18/004,928 · Granted Feb 17, 2026

Inventors: Yoshihiro Tawada (Tokyo, JP); Tomoya Katsukura (Tokyo, JP); Daichi Yamashita (Hyogo, JP); Masahiro Ushiro (Hyogo, JP)

Assignee: TMEIC Corporation

H02M7/48G06F3/0604G06F3/0643G06F3/0673

Abstract

Claims (24)

1 . An external storage device for a control apparatus of a power conversion system detachably connected to the control apparatus provided in the power conversion system, the external storage device comprising:

a plurality of file storage areas each storing various data including a voltage value, a frequency, and a temperature acquired by 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 various data in the plurality of file storage areas, wherein

the control apparatus is a microcomputer having a small program capacity,

the file management area is configured to store setting data and a plurality of BANK property data,

the setting data includes an identification code, a ring buffer BANK number, a trace channel number for each BANK, trace points for each channel, and a byte size of waveform data, and

each BANK property data includes BANK information including an index, a recording date and time when data is recorded, a trigger date and time, and a trigger item.

2 . The external storage device for the control apparatus of the power conversion system according to claim 1 , wherein the file management area is configured to manage data for setting a ring buffer format as the format for storage of the data in the plurality of file storage areas.

3 . The external storage device for the control apparatus of the power conversion system according to claim 2 , further comprising a standard format area configured to store data of browsing software for the terminal apparatus to read out the data stored in the plurality of file storage areas.

4 . The external storage device for the control apparatus of the power conversion system according to claim 1 , further comprising a standard format area configured to store data of browsing software for the terminal apparatus to read out the data stored in the plurality of file storage areas.

5 . The external storage device for the control apparatus of the power conversion system according to claim 4 , wherein the standard format area stores data of a runtime used by the terminal apparatus to read out the data stored in the plurality of file storage areas.

6 . The external storage device for the control apparatus of the power conversion system according to claim 5 , wherein the standard format area stores data of middleware used by the terminal apparatus to read out the data stored in the plurality of file storage areas.

7 . The external storage device for the control apparatus of the power conversion system according to claim 4 , wherein the standard format area stores data of middleware used by the terminal apparatus to read out the data stored in the plurality of file storage areas.

8 . A control apparatus of a power conversion system connected to an external storage device including a plurality of file storage areas and a file management area, comprising:

data reception circuitry configured to receive various data including a voltage value, a current value, a frequency, and a temperature acquired from the power conversion system; and

data control circuitry configured to write the various data received by the data reception circuitry in the plurality of file storage areas, wherein

the plurality of file storage areas are configured to store the various data,

the file management area is 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 various data in the plurality of file storage areas,

the file management area is configured to store setting data and a plurality of BANK property data,

the setting data includes an identification code, a ring buffer BANK number, a trace channel number for each BANK, trace points for each channel, and a byte size of waveform data, and

each BANK property data includes BANK information including an index, a recording date and time when data is recorded, a trigger date and time, and a trigger item.

9 . The control apparatus of the power conversion system according to claim 8 , further comprising:

external transmission/reception circuitry configured to transmit/receive data to/from outside, wherein

the data control circuitry is further configured to read data written in at least one of the plurality of file storage areas based on the format set in the file management area, and causes the external transmission/reception circuitry to transmit the data to a host monitoring apparatus.

Assignments (2)

Continuity (1)

References Cited (12)