| 摘要 |
PROBLEM TO BE SOLVED: To provide a device system which can enable a user to sleep well, by automatically turning of the power switch of electric equipment after detecting that the user gets to sleep. SOLUTION: When a person is awake after getting into bed, the person causes relatively large vibrations by making turning over, etc., in the bed. In this fist sleep, however, the person usually gets into a non-REM sleep and does not make any movement. Therefore, a timer circuit 10 is started by turning on a device switch 8 and, when stoppage of vibration is detected (9) until the set time of the circuit 10 elapses, an equipment switch 4 is turned off. However, since the person makes minor vibrations by breathing while the person is in a sound sleep, the movement of the person while the person is awake is distinguished from the breathing of the person by omitting the count of vibrations less than 1 mm/sec<2> . |
