公开(公告)号：US20090257316A1

公开(公告)日：2009-10-15

申请号：US12082587

申请日：2008-04-11

申请人： James C. Squire ,  Gerald A. Sullivan ,  George W. Flathers, III

发明人： James C. Squire ,  Gerald A. Sullivan ,  George W. Flathers, III

IPC分类号： H04B1/38

CPC分类号： H04B1/034

摘要： The disclosed system uses seismic signaling to locate survivors in a mine collapse. A separate transmitter with a specific pre-selected frequency or frequencies is placed in pre-positioned safety zones of a mine. The system generates frequency-locked, unmodulated seismic energy, which allows rescuers to identify the safety zone where a transmitter is activated. The transmitter comprises an oscillator that generates the signal. The oscillator drives the transducer. The transducer causes the inertial mass to move. The movement of the inertial mass generates the seismic waves, which are conducted through the pressure plate to the earth. The seismic signal is detected then amplified, filtered, converted and then processed. The use of a continuous signal enables the processing unit to identify the frequency of the signal with a very low error rate, using frequency content identification. The disclosure also describes a method for transmitting seismic waves through the earth using the above described system.

摘要翻译： 所公开的系统使用地震信号来定位矿井崩溃中的幸存者。 具有特定预选频率或频率的单独发射器放置在矿井的预定位安全区域。 该系统产生频率锁定，未调制的地震能量，这使得救援人员能够识别发射器被激活的安全区域。 发射机包括产生信号的振荡器。 振荡器驱动传感器。 换能器使惯性质量块移动。 惯性质量的运动产生了通过压力板传递到地球的地震波。 检测到地震信号，然后进行放大，滤波，转换处理。 使用连续信号使得处理单元能够使用频率内容识别以非常低的误码率来识别信号的频率。 本公开还描述了使用上述系统将地震波传播通过地球的方法。