Title:
MONITORING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/224698
Kind Code:
A1
Abstract:
A monitoring device 1 comprises: a vibrational power-generating element 10 as a vibrational power-generating unit that generates power in response to vibration or sound of a prescribed frequency from a target to be monitored; and a notification unit 70 that provides a notification concerning a state change of the target to be monitored according to a magnitude relationship between a prescribed threshold and a voltage value of power generated by the vibrational power-generating element 10. The notification unit 70 is configured to provide a notification concerning a state change when the vibrational power-generating element 10 generates power, and therefore, the vibrational power-generating element 10, which functions as a sensor unit, does not require a power source.
Inventors:
MITSUYA HIROYUKI (JP)
ASHIZAWA HISAYUKI (JP)
ISHIKAWA TAKURO (JP)
ASHIZAWA HISAYUKI (JP)
ISHIKAWA TAKURO (JP)
Application Number:
PCT/JP2022/014182
Publication Date:
October 27, 2022
Filing Date:
March 24, 2022
Export Citation:
Assignee:
SAGINOMIYA SEISAKUSHO INC (JP)
International Classes:
G01H11/06; G01M99/00
Foreign References:
| JP2018141751A | 2018-09-13 | |||
| JPH0416724A | 1992-01-21 | |||
| JP2009258063A | 2009-11-05 | |||
| JP6829119B2 | 2021-02-10 | |||
| JP2014062775A | 2014-04-10 | |||
| JP2021018148A | 2021-02-15 | |||
| JP2006234784A | 2006-09-07 |
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
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