US 12,243,361 B2
Measurement data synchronization method, testing method, and non-transitory computer-readable medium storing computer program
Toshimichi Takahashi, Tokyo (JP); Kenji Watanabe, Tokyo (JP); Tomoya Nakajo, Tsukuba (JP); Motoaki Oyama, Tsukuba (JP); and Takahiro Haniu, Tsukuba (JP)
Assigned to MEIDENSHA CORPRATION, Tokyo (JP); and JAPAN AUTOMOBILE RESEARCH INSTITUTE, Tokyo (JP)
Appl. No. 18/552,424
Filed by MEIDENSHA CORPORATION, Tokyo (JP); and JAPAN AUTOMOBILE RESEARCH INSTITUTE, Tokyo (JP)
PCT Filed Mar. 14, 2022, PCT No. PCT/JP2022/011281
§ 371(c)(1), (2) Date Sep. 25, 2023,
PCT Pub. No. WO2022/202436, PCT Pub. Date Sep. 29, 2022.
Claims priority of application No. 2021-050670 (JP), filed on Mar. 24, 2021.
Prior Publication US 2024/0177543 A1, May 30, 2024
Int. Cl. G06F 11/30 (2006.01); G01M 99/00 (2011.01); G06F 16/27 (2019.01); G07C 5/08 (2006.01)
CPC G07C 5/0808 (2013.01) [G01M 99/005 (2013.01); G06F 16/27 (2019.01)] 5 Claims
OG exemplary drawing
 
1. A test method for evaluating a performance of a test object by processing time series data outputted from a plurality of measuring instruments by a computer, the test method comprising:
acquiring reference data, which is time series data outputted from each measuring instrument, when a reference signal including a steady section and a rising section is simultaneously inputted to a reference signal channel of each of the plurality of measuring instruments, and measurement data, which is time series data outputted from each measuring instrument, when a signal correlated with a state of the test object is inputted to each measuring channel of the plurality of measuring instruments;
generating a plurality of pieces of filtered data by performing median filtering processing for extracting a median value within a predetermined time width on each of the plurality of pieces of reference data;
acquiring rising timing information from each of the plurality of pieces of filtered data;
synchronizing a plurality of pieces of the measurement data so that the rising timings of signal values in a plurality of pieces of filtered data are aligned based on a plurality of pieces of the rising timing information; and
evaluating a performance of the test object based on the plurality of pieces of synchronized measurement data.