公开(公告)号：US5918855A

公开(公告)日：1999-07-06

申请号：US501032

申请日：1995-11-01

申请人： Tatsumi Hamanaka ,  Mitsuyoshi Seki ,  Takatoshi Kawabata ,  Toshiyuki Murahashi ,  Tadahiro Honda ,  Yoshiyuki Kaneko ,  Hiroyuki Iwashita

发明人： Tatsumi Hamanaka ,  Mitsuyoshi Seki ,  Takatoshi Kawabata ,  Toshiyuki Murahashi ,  Tadahiro Honda ,  Yoshiyuki Kaneko ,  Hiroyuki Iwashita

IPC分类号： E03C1/05 ,  F16K31/02

CPC分类号： E03C1/057 ,  Y10T137/86389

摘要： In an automatic faucet having a hand sensor S to start and stop discharging water automatically, only hands can be detected accurately without detecting a washbowl (chinaware) and water stream erroneously. The sensor S comprises a light emitter and a light receiver. The directional axis d of a detection region (in which the light emitting region of the light emitter and the light receiving region of the light receiver are overlapped with each other) intersects the discharged water stream, and further the intersection angle between both is adjusted less than 70 degrees, irrespective of the flow rate of the discharged water. The reflected light levels detected by the light receiver are sampled periodically to calculate an average value and a variance value on the basis of at least eight most updated sampled data. Water discharge is started and stopped on the basis of the calculated average value and the variance value.

摘要翻译： PCT No.PCT / JP94 / 02156 Sec。 371日期：1995年11月1日 102（e）1995年11月1日日期PCT 1994年12月20日PCT PCT。 公开号WO95 / 17556 日期：1995年6月29日在具有手动传感器S的自动水龙头自动启动和停止排水的情况下，只有在没有检测到洗手盆（瓷器）和水流错误的情况下才能准确检测到手。 传感器S包括光发射器和光接收器。 检测区域（其中发光体的发光区域和光接收体的光接收区域彼此重叠）的方向轴d与排出的水流相交，并且进一步将两者之间的交叉角度调整得较少 超过70度，不管排放水的流量如何。 周期性地对由光接收器检测的反射光电平进行采样，以基于至少八个最新的采样数据来计算平均值和方差值。 基于计算出的平均值和方差值开始并停止排水。

公开(公告)号：US5758688A

公开(公告)日：1998-06-02

申请号：US747343

申请日：1996-11-12

申请人： Tatsumi Hamanaka ,  Mitsuyoshi Seki ,  Takatoshi Kawabata ,  Toshiyuki Murahashi ,  Tadahiro Honda ,  Yoshiyuki Kaneko ,  Hiroyuki Iwashita

发明人： Tatsumi Hamanaka ,  Mitsuyoshi Seki ,  Takatoshi Kawabata ,  Toshiyuki Murahashi ,  Tadahiro Honda ,  Yoshiyuki Kaneko ,  Hiroyuki Iwashita

IPC分类号： E03C1/05 ,  F16K31/02

CPC分类号： E03C1/057 ,  Y10T137/86389

摘要： In an automatic faucet having a hand sensor S to start and stop discharging water automatically, only hands can be detected accurately without detecting a washbowl (chinaware) and water stream erroneously. The sensor S comprises a light emitter and a light receiver. The directional axis d of a detection region (in which the light emitting region of the light emitter and the light receiving region of the light receiver are overlapped with each other) intersects the discharged water stream, and further the intersection angle between both is adjusted less than 70 degrees, irrespective of the flow rate of the discharged water. The reflected light levels detected by the light receiver are sampled periodically to calculate an average value and a variance value on the basis of at least eight most updated sampled data. Water discharge is started and stopped on the basis of the calculated average value and the variance value.

摘要翻译： 在具有手动传感器S自动启动和停止自动排水的自动水龙头的情况下，只有在没有检测到洗手盆（瓷器）和水流错误的情况下才能精确地检测到手。 传感器S包括光发射器和光接收器。 检测区域（其中发光体的发光区域和光接收体的光接收区域彼此重叠）的方向轴d与排出的水流相交，并且进一步将两者之间的交叉角度调整得较少 超过70度，不管排放水的流量如何。 周期性地对由光接收器检测的反射光电平进行采样，以基于至少八个最新的采样数据来计算平均值和方差值。 基于计算出的平均值和方差值开始并停止排水。