Title:
見守り装置
Document Type and Number:
Japanese Patent JP7090889
Kind Code:
B2
Abstract:
To provide a watching device capable of detecting apnea of a cared person.SOLUTION: A distance image sensor 11 time-sequentially acquires distance images of an area including an upper surface of a bed on which a cared person exists. A conversion section 12 converts respective pixel values of multiple pixels in each distance image from a polar coordinate system into a rectangular coordinate system by defining a coordinate of a first point of the distance image sensor 11 as an original point. A detection section 13 detects apnea of a cared person on the basis of distance variations between a coordinate of a second point on the upper surface of the bed and respective pixel values of multiple pixels, that have been converted into the rectangular coordinate system.SELECTED DRAWING: Figure 1
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Inventors:
Kota Murahira
Zhang Xu Hua
Zhang Xu Hua
Application Number:
JP2018105429A
Publication Date:
June 27, 2022
Filing Date:
May 31, 2018
Export Citation:
Assignee:
King Telecommunications Industry Co., Ltd.
International Classes:
A61B5/00; G06T7/20; G06T7/521; G08B21/04; G08B25/00; G08B25/04
Domestic Patent References:
| JP2017530762A | ||||
| JP2013078433A | ||||
| JP2005253608A |
Foreign References:
| US20170055877 | ||||
| US20170014648 | ||||
| US20150334372 |
Attorney, Agent or Firm:
Cleo International Law & Patent Office