公开(公告)号：US06409117B1

公开(公告)日：2002-06-25

申请号：US09850016

申请日：2001-05-07

申请人： Mark W. Petersen ,  Brian S. Witz ,  John J. McGirr, Jr. ,  Lance G. Gilmet ,  James M. Gary

发明人： Mark W. Petersen ,  Brian S. Witz ,  John J. McGirr, Jr. ,  Lance G. Gilmet ,  James M. Gary

IPC分类号： B65H6308

摘要： The present invention includes systems and methods for monitoring the spooling area of a rotatable reel for winding or unwinding an elongated material, for example, a cable. The monitoring system has a detector for sensing the presence and position of a cable surface or object or operator positioned between the detector and the reel. The detector can control rotation of the reel directly, or send a position signal to a computer where the position signal indicates the detected presence and/or position. The computer can have a memory and/or a processor for respectively storing and analyzing the position signal. The computer is operative to compare the position signal to previously received position signals to determine a condition, for example, the amount of cable on the reel, the presence of any object, and/or the existence of a safety-threatening condition. The computer can generate an output signal for use in, for example, controlling the reel speed and/or torque, or the application of brakes.

公开(公告)号：US06247664B1

公开(公告)日：2001-06-19

申请号：US09344798

申请日：1999-06-25

申请人： Mark W. Petersen ,  Brian S. Witz ,  John J. McGirr, Jr. ,  Lance G. Gilmet ,  James M. Gary

发明人： Mark W. Petersen ,  Brian S. Witz ,  John J. McGirr, Jr. ,  Lance G. Gilmet ,  James M. Gary

IPC分类号： B65H5422

CPC分类号： B65H63/00 ,  F16P3/141 ,  F16P3/142 ,  F16P3/144 ,  F16P3/147 ,  F16P3/148

摘要： The present invention includes systems and methods for monitoring the spooling area of a rotatable reel for winding or unwinding an elongated material, for example, a cable. The monitoring system has a detector for sensing the presence and position of a cable surface or object or operator positioned between the detector and the reel. The detector can control rotation of the reel directly, or send a position signal to a computer where the position signal indicates the detected presence and/or position. The computer can have a memory and/or a processor for respectively storing and analyzing the position signal. The computer is operative to compare the position signal to previously received position signals to determine a condition, for example, the amount of cable on the reel, the presence of any object, and/or the existence of a safety-threatening condition. The computer can generate an output signal for use in, for example, controlling the reel speed and/or torque, or the application of brakes.