Non-contact noise attenuation water flow system and method for detecting washing compliance
    1.
    发明授权
    Non-contact noise attenuation water flow system and method for detecting washing compliance 有权
    非接触式噪声衰减水流系统及其检测方法

    公开(公告)号:US09536415B2

    公开(公告)日:2017-01-03

    申请号:US14348372

    申请日:2012-09-28

    IPC分类号: G08B23/00 G08B21/20 G08B21/24

    CPC分类号: G08B21/20 G08B21/245

    摘要: A low cost solution for detecting the flow of water in a sink using a non-contact vibration sensor coupled with a computer vision system and a passive switched RFID tag that becomes active upon detection of water flow. In some embodiments, the water flow forms an active antennae system for the RFID tag. The sensor comprises a piezo electric film attached at the underside of a water receptacle, for example, a sink so as to collect the sound generated by water splashing or hitting the sink and a vision system using active detection techniques.

    摘要翻译: 一种用于使用与计算机视觉系统耦合的非接触式振动传感器和在检测到水流时变得活跃的被动切换RFID标签来检测水槽中的水流的低成本解决方案。 在一些实施例中,水流形成用于RFID标签的有源天线系统。 传感器包括附着在水容器的下侧的压电电极,例如水槽,以便收集由溅水或撞击水槽产生的声音和使用主动检测技术的视觉系统。