METHOD OF DETECTING PRESENCE OF SUBJECT ON BED

Title:

METHOD OF DETECTING PRESENCE OF SUBJECT ON BED

Document Type and Number:

WIPO Patent Application WO/2007/148638

Kind Code:

A1

Abstract:

A method of detecting the presence of a subject on a bed has a load detection step, a determination step, and a first information providing step. The load detection step detects loads acting on portions of a lying surface (61) of the bed by first to fourth load detection means (21a, 21b, 21c, 21d), where the portions of the lying surface (61) are a portion on the right side of the head, a portion on the left side of the head, a portion on the right side of the feet, and a portion on the left side of the feet. The determination step determines whether a predetermined determination formula is satisfied or not on the basis of load values (W1, W2, W3, W4) output from the first to fourth load detection means. The first information providing step provides information on the presence of the subject (H) on the bed when it is determined that the formula is satisfied by the result of the determination in the determination step.

Inventors:

HIROSE KAZUO (JP)

Application Number:

PCT/JP2007/062202

Publication Date:

December 27, 2007

Filing Date:

June 18, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SHOWA DENKO KK (JP)
HIROSE KAZUO (JP)

International Classes:

A61G7/05; G01G19/52

Foreign References:

JP2006030120A	2006-02-02
JPH0880286A	1996-03-26
JPS5945085B2	1984-11-02
JP3322632B2	2002-09-09
JP3322632B2	2002-09-09
JP3093745B2	2000-10-03
JP2006168484A	2006-06-29

Other References: