公开(公告)号：US20090268553A1

公开(公告)日：2009-10-29

申请号：US12140363

申请日：2008-06-17

申请人： Donald R. Ecker ,  Tareq Ziyad Murad ,  Hermann Wieth

发明人： Donald R. Ecker ,  Tareq Ziyad Murad ,  Hermann Wieth

IPC分类号： G01S3/80

CPC分类号： G01S7/003 ,  G01S7/521 ,  G01S7/5273 ,  G01S15/10 ,  G01S15/88

摘要： Methods and ultrasonic sensor systems are presented for sensing distance in which an acoustic output signal is directed toward a target and acoustic input signals are received from the direction of the target, and the received signal is compared with a selected one of a plurality of different receiver threshold curves to identify the acoustic wave travel time to the target and back while differentiating between the target and acoustic waves reflected more than once and waves reflecting off obstructions between the sensor and the target, where the user selectable receiver threshold curves are tailored for different target and/or obstruction conditions.

摘要翻译： 提出了用于感测声输出信号指向目标的距离的方法和超声波传感器系统，并且从目标的方向接收声输入信号，并且将接收的信号与多个不同接收机中的选定的一个进行比较 阈值曲线来识别到目标和后面的声波行进时间，同时在不同一次反射的目标和声波之间进行区分，反射出传感器和目标之间的障碍物的波，其中用户可选择的接收器阈值曲线针对不同的目标 和/或阻塞条件。