| 摘要 |
PROBLEM TO BE SOLVED: To provide a bed device capable of detecting and alarming abnormality of an old person of dementia, especially, in the condition where he is on a bed. SOLUTION: This device is provided with a bed 8, a first to a fourth load detectors 9a-9d to detect a load applied on a sleeping floor part 11 of the bed 8 to generate a load signal, a weight operation means to operate a weight applied on the sleeping floor part 11 based on the load signals, a gravity center position operation means to operate a gravity center position of the weight of a user on the floor part 11 based on the load signals, a move distance operation means to operate a gravity center position move distance based on the plural gravity center positions obtained by operation of the gravity center position operation means, and a display and alarm part to generate an alarm when the weight on the floor part 11 obtained by operation of the weight operation means is ligher than a specified weight, when the gravity center position obtained by operation of the gravity center position operation means is within ranges of getting on/off parts 14 and 15 of the floor part 11, or when total move distance of move distance for the five gravity center positions obtained by operation of the move distance operation means is longer than a specified upper limit distance. |
