Title:
DETECTION DEVICE AND DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/024732
Kind Code:
A1
Abstract:
A sensor device (100) (detection device) is provided with an acceleration senor (1) (sensor unit) that detects an X-axis acceleration and a Y-axis acceleration. The sensor device (100) is also provided with a signal processing unit (2) (state detection unit) that detects the fastening state of each nut (240) on the basis of a comparative result between a rotational angle of the sensor device (100) calculated on the basis of the X-axis acceleration and the Y-axis acceleration, and a rotational angle initial value of the sensor device (100) calculated on the basis of initial values (reference accelerations) of the X-axis acceleration and the Y-axis acceleration. The signal processing unit (2) defines accelerations that are greater than a zero value and are detected by the acceleration sensor (1) after the X-axis acceleration and the Y-axis acceleration took values that can be regarded as the zero value, as the initial values of the accelerations.
Inventors:
KOSUGI MASANORI (JP)
Application Number:
PCT/JP2023/027021
Publication Date:
February 01, 2024
Filing Date:
July 24, 2023
Export Citation:
Assignee:
TOKAI RIKA CO LTD (JP)
International Classes:
G01L5/00; B60B3/16; G01B7/30
Domestic Patent References:
| WO2012147396A1 | 2012-11-01 |
Foreign References:
| CN109900466A | 2019-06-18 | |||
| US20170082132A1 | 2017-03-23 | |||
| CN104142229A | 2014-11-12 | |||
| JP2020020646A | 2020-02-06 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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