公开(公告)号：US06901336B2

公开(公告)日：2005-05-31

申请号：US10404180

申请日：2003-03-31

申请人： Curtis Alan Tesdahl ,  David T. Crook ,  Kevin G. Chandler

发明人： Curtis Alan Tesdahl ,  David T. Crook ,  Kevin G. Chandler

IPC分类号： G01R19/00 ,  G08C19/00 ,  H04B3/46 ,  H04B3/50 ,  H04B7/005 ,  H04L25/02

CPC分类号： H04L25/02 ,  H04B2203/5458 ,  H04L25/0282

摘要： A novel technique for transferring power, measurement signals, and communication signals between two electrical devices over a single wire pair is presented. A host device supplies power to a sensor device over the wire pair. The sensor device obtains A/C signals by modulating the current component of the power signal on the wire pair. The host device de-modulates the current component of the power signal on the wire pair to recover the A/C measurement signals. The sensor device generates a serial bit stream containing sensor communication signals, and modulates it with either the voltage-or current-component of the power signal present on the wire pair. The host device appropriately de-modulates the power signal to recover the serial bit stream containing the sensor communication signals.

摘要翻译： 提出了一种用于通过单线对在两个电气设备之间传输功率，测量信号和通信信号的新技术。 主机设备通过线对为传感器设备供电。 传感器装置通过调制线对上的电力信号的电流分量来获得A / C信号。 主机设备对线对上的电源信号的电流分量进行解调，以恢复A / C测量信号。 传感器装置产生包含传感器通信信号的串行比特流，并且用线对上存在的功率信号的电压或电流分量进行调制。 主设备适当地解调功率信号以恢复包含传感器通信信号的串行比特流。