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    • 10. 发明申请
    • A BASE UNIT FOR A LIQUID DISPENSER AND A METHOD OF OPERATING THE BASE UNIT
    • 用于液体分配器的基座单元和操作基座单元的方法
    • WO2015074274A1
    • 2015-05-28
    • PCT/CN2013/087774
    • 2013-11-25
    • RECKITT BENCKISER (BRANDS) LIMITEDJIN, WuVAN DIEPEN, Jacobus Simon PetrusZHANG, GeorgeTAM, Chi MingYIN, ChrisYUEN, Simon
    • JIN, WuVAN DIEPEN, Jacobus Simon PetrusZHANG, GeorgeTAM, Chi MingYIN, ChrisYUEN, Simon
    • A47K5/12
    • A47K5/1202A47K5/1217
    • A method of operating a base unit (2) of a liquid dispenser is disclosed. The base unit (2) comprises a port for receiving a liquid refill (1); a liquid inlet for receiving, in use, liquid from the outlet of the refill unit (1); a liquid flow path from the liquid inlet to a liquid outlet from which the liquid is arranged to be dispensed in a downward direction; a pump (5) to selectively pump liquid along the liquid flow path and out of the outlet; a capacitive sensor (7) to sense the presence of an object in the vicinity of the liquid outlet; and a controller to receive a signal from the sensor (7) to operate the pump (5) if an object is sensed in the vicinity of a liquid outlet. The method comprises the steps of triggering the capacitive sensor (7) at a first sample rate to monitor changers in capacitance caused by varying ambient conditions; triggering the capacitive sensor (7) at a second sample rate which is higher than the first sample rate, and operating the pump (5) if the value sensed by the sensor (7) when detecting signals at the second sample rate exceeds a threshold valve indicating the presence of a hand in the vicinity of the outlet; wherein the signals detected at the first sample rate are used to adjust the threshold value to compensate for variations in humidity.
    • 公开了一种操作液体分配器的基座(2)的方法。 基座单元(2)包括用于接收液体补充物(1)的端口; 液体入口,用于在使用中从再填充单元(1)的出口接收液体; 从所述液体入口到液体出口的液体流动路径,液体从所述液体出口布置成沿向下方向分配; 泵(5),用于选择性地将液体沿液体流动路径泵送出出口; 电容式传感器(7),用于感测物体在液体出口附近的存在; 以及如果在液体出口附近感测到物体,则控制器从传感器(7)接收信号以操作泵(5)。 该方法包括以第一采样率触发电容式传感器(7)以监视由变化的环境条件引起的电容器中的变换器的步骤; 以高于第一采样率的第二采样率触发电容传感器(7),并且如果在以第二采样率检测信号时由传感器(7)感测到的值超过阈值阀 指示在出口附近存在手; 其中以第一采样率检测的信号用于调整阈值以补偿湿度变化。