System and method for guided boring obstacle detection
    2.
    发明授权
    System and method for guided boring obstacle detection 有权
    导向镗孔障碍物检测系统及方法

    公开(公告)号:US06679120B1

    公开(公告)日:2004-01-20

    申请号:US10195708

    申请日:2002-07-15

    Abstract: A method and system for detecting an underground obstacle in which a plurality of acoustic signal sensors are deployed in a predetermined pattern on an area of ground defined by a guided drill path. A drill head of a drill is inserted into the ground and a borehole is drilled in the ground along the guided drill path. The noise signal generated by the drill head is detected at at least two of the acoustic signal sensors and the difference in arrival time of the noise signal at the two acoustic signal sensors is determined. This difference in arrival time of noise signal is analyzed, whereby the presence or absence of an underground obstacle is determined.

    Abstract translation: 一种用于检测地下障碍物的方法和系统,其中多个声学信号传感器以预定图案部署在由导向钻孔路径限定的地面上。 将钻头的钻头插入地面,沿着导向的钻孔路径在地面上钻一个钻孔。 在至少两个声信号传感器处检测由钻头产生的噪声信号,并且确定噪声信号在两个声信号传感器处的到达时间差。 分析噪声信号到达时间的差异,确定地下障碍物的存在与否。

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