公开(公告)号：US5530300A

公开(公告)日：1996-06-25

申请号：US400182

申请日：1995-03-06

申请人： Russell L. Powers ,  Doug R. Turner ,  James S. Chang

发明人： Russell L. Powers ,  Doug R. Turner ,  James S. Chang

IPC分类号： E01F13/00 ,  E05B47/00

CPC分类号： E01F13/00 ,  Y10T307/773 ,  Y10T307/826 ,  Y10T307/951

摘要： A range extender module for extending the range capability of a barrier control system comprising a low voltage AC control unit which receives low voltage AC control signals conveyed by wires to input terminals thereof from a plurality of remotely located switches and responds to such AC control signals by controlling the barrier. The controlled barrier may be, for example, a garage door or a driveway gate. The range extender module is inserted into the wires between the low voltage AC control unit and the remote switches and includes a source of DC voltage, which is used to energize the formerly AC energized switches and responds to DC input signals created by operator interaction with the switches by selectively gating low voltage AC control signals to appropriate input terminals of the low voltage AC control unit for controlling the barrier. The use of DC voltage to energize the remote switches avoids problems caused by the use of low voltage AC signals over wires which exhibit a significant reactive component of impedance.

摘要翻译： 一种范围扩展器模块，用于扩展障碍物控制系统的范围能力，该障碍物控制系统包括低压AC控制单元，该低压AC控制单元从多个远程定位的开关接收由导线传送到其输入端的低压AC控制信号，并通过 控制屏障。 受控的屏障可以是例如车库门或车道门。 范围扩展模块插入到低压交流控制单元和远程开关之间的导线中，并且包括一个直流电压源，用于为以前的交流供电开关通电，并响应由操作人员与之相互作用产生的直流输入信号 通过选择性地将低压AC控制信号选通到低压AC控制单元的适当输入端，以控制屏障。 使用直流电压来为远程开关供电避免了由于使用低电压交流信号而引起的问题，这些问题显示出有效的阻抗分量。