| 摘要 |
PROBLEM TO BE SOLVED: To provide a biosignal detecting method capable of continuously detecting the biosignal strength and of determining whether or not a patient in a hospital is presently in or out of bed, and a determination method and a monitoring device for sleeping conditions. SOLUTION: A non-invasive sensor 1 is provided for detecting biosignals such as breath, heartbeats, from a subject, and an environmental noise sensor 2 is provided for detecting noises in the environment where the subject is located. The biosignal strength is measured to determine whether biosignals are issued, according to the strength of signals outputted from these sensors. Further, in combination with an out-bed sensor 11 for confirming that the subject is out of bed, a means is provided to determine the sleeping conditions, whether the patient is in or out of bed, the reduction or stop of biosignals from the patient, or the like. COPYRIGHT: (C)2004,JPO
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