Title:
WIRELESS SENSOR DEVICE, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/241456
Kind Code:
A1
Abstract:
This wireless sensor device comprises: an antenna; a demodulation unit which demodulates a carrier wave received by the antenna; a sensor unit which emits a signal of a frequency which changes according to a measured value from a sensor; a storage unit which stores prescribed information; a modulation unit which modulates the carrier wave and supplies the modulated carrier wave to the antenna; and a control unit that, on the basis of a mode switching command included in the carrier wave received by the antenna, switches between a first mode, in which a carrier wave modulated by the modulation unit on the basis of a signal based on the prescribed information stored in the storage unit is transmitted from the antenna, and a second mode, in which the carrier wave modulated by the modulation unit on the basis of the frequency of the signal emitted by the sensor unit is transmitted from the antenna.
Inventors:
MASUDAYA HIDEKI (JP)
OSHIRO KAZUNORI (JP)
OSHIRO KAZUNORI (JP)
Application Number:
PCT/JP2021/019446
Publication Date:
December 02, 2021
Filing Date:
May 21, 2021
Export Citation:
Assignee:
ALPS ALPINE CO LTD (JP)
International Classes:
G08C17/00; H04B1/59; H04B5/02
Domestic Patent References:
| WO2007055015A1 | 2007-05-18 |
Foreign References:
| JP2016053958A | 2016-04-14 | |||
| JP2006108755A | 2006-04-20 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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