PURPOSE: To surely detect a fact that a person is on a bed main body in a bed which is arranged, for instance, in a guest room of a hotel, etc.
CONSTITUTION: The bed is constituted by providing a weight measuring means 55 for measuring the weight for working on the leg parts of the bed, a comparing means 57 for inputting the weight measured by this weight measuring means 55, and deriving the difference weight of this weight and reference weight determined in advance, and a deciding means 59 for inputting the difference weight from this comparing means 57, and outputting a human body detecting signal for showing a fact that a person is on the bed main body, when the value of the difference weight exceeds decision weight determined in advance. Also, this bed is constituted by providing a deciding means for inputting the weight measured by the weight measuring means 55, and outputting the human body detecting signal for showing a fact that a person is on the bed main body, when a weight fluctuation extending over a prescribed time or above occurs in the inputted weight.
YOSHIDA KATSUYUKI
UEHARA SHIGEO
SHINOHARA KOICHIRO
KITA MOTOHIRO
GOTO KENICHI
OMRON TATEISI ELECTRONICS CO