| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an on-bed state determination device easily applicable to the bedding part of a different size and accurately determining the on-bed state of a person on the bedding part of a bed even when the bedding part is extended to the outer side of the support part of the bed. <P>SOLUTION: The on-bed state determination device 20 is provided on the bed 10 including the bedding part 11 and support parts 12-15 provided on the bedding part 11 to support the bedding part 11. The on-bed state determination device 20 includes: load detection means 21-24 for detecting loads put on the support parts 12-15; a support part distance measuring means 25 provided in the load detection means 21, for measuring a support part distance L<SB>1</SB>to the support part 13; a centroid position computing means 27 for computing the centroid position W of the person on the bedding part 11 on the basis of the loads put on the support parts 12-15; and a state determination means 28 for determining the state of the person on the bedding part 11 on the basis of the support part distance L<SB>1</SB>and the centroid position W of the person on the bedding part 11. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
