Title:
VITALS MEASURING DEVICE, VITALS MEASURING METHOD, AND VITALS MEASURING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/112295
Kind Code:
A1
Abstract:
A vitals measuring device (20) is configured so as to include: a signal acquisition unit (21) that acquires, from antennas (11-1) to (11-N) that receive reflected waves from a target object, reception signals of the reflected waves; and a phase-change signal calculation unit (22) that calculates phase-change signals from the reception signals acquired by the signal acquisition unit (21), the phase-change signals being signals in which phases thereof change in accordance with the vitals of a measurement subject contained in the target object. In addition, the vital measuring device (20) includes: a signal waveform determination unit (26) that determines, in the case in which one or more phase-change signals are calculated by the phase-change signal calculation unit (22), whether waveforms of the respective phase-change signals are signal waveforms indicating direct waves from the measurement subject or signal waveforms indicating multipath waves from the measurement subject; a multipath wave removal unit (27) that removes, on the basis of the signal-waveform determination results from the signal waveform determination unit (26), phase-change signals related to the multipath waves among the one or more phase-change signals calculated by the phase-change signal calculation unit (22); and a vitals estimation unit (28) that estimates the vitals of the measurement subject from, among the one or more phase-change signals calculated by the phase-change signal calculation unit (22), the phase-change signals remaining without being removed by the multipath wave removal unit (27).
Inventors:
KITAMURA TAKAYUKI (JP)
KAGEME SATOSHI (JP)
KAGEME SATOSHI (JP)
Application Number:
PCT/JP2021/046686
Publication Date:
June 22, 2023
Filing Date:
December 17, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
A61B5/113
Domestic Patent References:
| WO2016084473A1 | 2016-06-02 |
Foreign References:
| US20150327774A1 | 2015-11-19 | |||
| US20170105659A1 | 2017-04-20 | |||
| JP2017513656A | 2017-06-01 |
Other References:
KIM CHANGKYEONG, LEE JOON-YONG: "ToA-based multi-target localization and respiration detection using UWB radars", EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, vol. 2014, no. 1, 1 December 2014 (2014-12-01), pages 145, XP055845249, DOI: 10.1186/1687-1499-2014-145
GAO XIAOMENG; BORIC-LUBECKE OLGA: "Radius Correction Technique for Doppler Radar Noncontact Periodic Displacement Measurement", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE, USA, vol. 65, no. 2, 1 February 2017 (2017-02-01), USA, pages 621 - 631, XP011640540, ISSN: 0018-9480, DOI: 10.1109/TMTT.2016.2625796
ZENG YOUWEI YWZENG@PKU.EDU.CN; WU DAN DAN@PKU.EDU.CN; XIONG JIE JXIONG@CS.UMASS.EDU; LIU JINYI LIUJINYI@PKU.EDU; LIU ZHAOPENG LIUZ: "MultiSense", PROCEEDINGS OF THE ACM ON INTERACTIVE, MOBILE, WEARABLE AND UBIQUITOUS TECHNOLOGIES, ACMPUB27, NEW YORK, NY, USA, vol. 4, no. 3, 4 September 2020 (2020-09-04), New York, NY, USA , pages 1 - 29, XP058495254, DOI: 10.1145/3411816
GOUVEIA CAROLINA, ALBUQUERQUE DANIEL, VIEIRA JOSÉ, PINHO PEDRO: "Dynamic Digital Signal Processing Algorithm for Vital Signs Extraction in Continuous-Wave Radars", REMOTE SENSING, vol. 13, no. 20, pages 4079, XP093072514, DOI: 10.3390/rs13204079
YANG YANNI; CAO JIANNONG: "Robust RFID-based Respiration Monitoring in Dynamic Environments", 2020 17TH ANNUAL IEEE INTERNATIONAL CONFERENCE ON SENSING, COMMUNICATION, AND NETWORKING (SECON), IEEE, 22 June 2020 (2020-06-22), pages 1 - 9, XP033807264, DOI: 10.1109/SECON48991.2020.9158419
GAO XIAOMENG; BORIC-LUBECKE OLGA: "Radius Correction Technique for Doppler Radar Noncontact Periodic Displacement Measurement", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE, USA, vol. 65, no. 2, 1 February 2017 (2017-02-01), USA, pages 621 - 631, XP011640540, ISSN: 0018-9480, DOI: 10.1109/TMTT.2016.2625796
ZENG YOUWEI YWZENG@PKU.EDU.CN; WU DAN DAN@PKU.EDU.CN; XIONG JIE JXIONG@CS.UMASS.EDU; LIU JINYI LIUJINYI@PKU.EDU; LIU ZHAOPENG LIUZ: "MultiSense", PROCEEDINGS OF THE ACM ON INTERACTIVE, MOBILE, WEARABLE AND UBIQUITOUS TECHNOLOGIES, ACMPUB27, NEW YORK, NY, USA, vol. 4, no. 3, 4 September 2020 (2020-09-04), New York, NY, USA , pages 1 - 29, XP058495254, DOI: 10.1145/3411816
GOUVEIA CAROLINA, ALBUQUERQUE DANIEL, VIEIRA JOSÉ, PINHO PEDRO: "Dynamic Digital Signal Processing Algorithm for Vital Signs Extraction in Continuous-Wave Radars", REMOTE SENSING, vol. 13, no. 20, pages 4079, XP093072514, DOI: 10.3390/rs13204079
YANG YANNI; CAO JIANNONG: "Robust RFID-based Respiration Monitoring in Dynamic Environments", 2020 17TH ANNUAL IEEE INTERNATIONAL CONFERENCE ON SENSING, COMMUNICATION, AND NETWORKING (SECON), IEEE, 22 June 2020 (2020-06-22), pages 1 - 9, XP033807264, DOI: 10.1109/SECON48991.2020.9158419
Attorney, Agent or Firm:
SANNO PATENT ATTORNEYS OFFICE (JP)
Download PDF:
Previous Patent: VITAL SIGN MEASUREMENT DEVICE, VITAL SIGN MEASUREMENT METHOD, AND VITAL SIGN MEASUREMENT SYSTEM
Next Patent: VALVE DEVICE
Next Patent: VALVE DEVICE