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    • 4. 发明公开
    • Apparatus for detecting a person seated on a toilet seat
    • Vorrichtung zur Detektion einer auf einem Klosettsitz Sitzenden Person。
    • EP0581605A1
    • 1994-02-02
    • EP93306041.0
    • 1993-07-30
    • INAX CORPORATION
    • Takaba, Toshiaki
    • G08B21/00
    • G08B21/22
    • The invention provides an apparatus for detecting a person on a toilet seat. A crystal oscillator 62 is connected to the base of a transistor 60 of a high frequency oscillating circuit 50. An electrode 44 is provided on the toilet seat, so that when someone sits on the seat, a capacitance 64 is created by the person, parallel to the crystal oscillator 62. The output signal of oscillating circuit 50 passes through a band pass filter 52, is averaged by an averaging circuit 54, and is compared with a reference voltage from a circuit 56 by a comparison circuit 58. When no-one is sitting on the toilet seat, the signal level of oscillation circuit 50 is high, but when a person sits on the toilet seat 40, the capacitor 64 causes the oscillator signal level to become low, and the comparison voltage inputted into comparison circuit 58 becomes lower than the reference voltage. Thus, the comparator 58 output indicates when a person is sitting on the toilet seat. As long as the area of contact between the person and the toilet seat is larger than a certain predetermined size, detection is accomplished, irrespectively of whether or not the person is seated in a correct posture.
    • 本发明提供一种用于检测马桶座圈上的人的装置。 晶体振荡器62连接到高频振荡电路50的晶体管60的基极。在马桶座上设置电极44,使得当有人坐在座椅上时,由人创建电容64 振荡电路50的输出信号通过带通滤波器52,由平均电路54进行平均,并与比较电路58与来自电路56的参考电压进行比较。当没有一个 坐在马桶座上,振荡电路50的信号电平很高,但是当人坐在马桶座40上时,电容器64使振荡器信号电平变低,输入比较电路58的比较电压变为 低于参考电压。 因此,比较器58的输出指示人何时坐在马桶座上。 只要人和马桶座圈之间的接触面积大于一定的预定尺寸,就可以进行检测,而不管人是否以正确的姿势坐着。