Title:
VIBRATION RECORDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/171708
Kind Code:
A1
Abstract:
This vibration recording device comprises: an acceleration detection unit that periodically detects acceleration; a calculation unit that calculates vibration strength from the detection results obtained from the acceleration detection unit; and a storage unit that stores the calculation results obtained from the calculation unit. After a prescribed period of time has passed from the time at which the vibration strength exceeds a threshold value, the calculation unit transitions from a calculation state to a first state in which less power is consumed than in the calculation state.
Inventors:
NAKAO RYOTA (JP)
SATOMI TSUYOSHI (JP)
SATOMI TSUYOSHI (JP)
Application Number:
PCT/JP2018/047148
Publication Date:
September 12, 2019
Filing Date:
December 21, 2018
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
G01H1/00; G01P15/18; G01V1/00
Domestic Patent References:
| WO2013125200A1 | 2013-08-29 |
Foreign References:
| JP2017015604A | 2017-01-19 | |||
| JP2015011616A | 2015-01-19 | |||
| JP2013257642A | 2013-12-26 | |||
| JPH0943269A | 1997-02-14 | |||
| JP2012182362A | 2012-09-20 | |||
| JPH0697310A | 1994-04-08 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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