Title:
ベッド離床就床検知システム
Document Type and Number:
Japanese Patent JP7124676
Kind Code:
B2
Abstract:
To provide a system for detecting leaving-bed and going-to-bed which does not erroneously detect leaving-bed/going-to-bed of a sleeping person relative to a bed by being affected by noises as before.SOLUTION: A system 1A for detecting leaving-bed and going-to-bed includes a head side inclination sensor 2, a foot side inclination sensor 3, a controller 4, and a PC5. The head side inclination sensor 2 is provided on a head side of a sleeping person on a bed 6 and detects a head side inclination of the bed 6. The foot side inclination sensor 3 is provided on a foot side of the sleeping person on the bed 6 and detects a foot side inclination of the bed 6. When the sleeping person leaves the bed 6, a head side sensor value changes by +θ2, and a foot side sensor value changes by -θ1. In addition, when the sleeping person goes to the bed 6, the head side sensor value changes by -θ2, and the foot side sensor value changes by +θ1. A functional block 12f of an MCU12 determines leaving-bed and going-to-bed of the sleeping person relative to the bed 6 based on the magnitude/a polarity of a differential value obtained by subtracting the head side sensor value from the foot side sensor value by a subtractor 12e.SELECTED DRAWING: Figure 1
Inventors:
Naoaki Matsuoka
Taku Kusanagi
Taku Kusanagi
Application Number:
JP2018224298A
Publication Date:
August 24, 2022
Filing Date:
November 29, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
A61G12/00; A61B5/00; A61G7/043
Domestic Patent References:
| JP2015128574A | ||||
| JP2017127491A |
Attorney, Agent or Firm:
Takeshi Minegishi
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