| 摘要 |
Disclosed are exemplary embodiments of systems and methods to communicate data over at least one wire line between units each associated with a control system. In an exemplary embodiment, a conditioned input AC signal serves as a reference signal for data to be transmitted. In phase or out of phase state of the conditioned reference signals is determined by dividing the reference signal into predetermined number of segments, generating a template signal frame and a data signal frame at predetermined segments, generating an interrupt signal in each control system on a predetermined location on the reference signal, logically ORing the template and data signal frames, transmitting the ORed signal, and analyzing the ORed signal to determine phase of the reference signal provided to each control system. If the reference signal is out of phase, the interrupting signal is shifted to correct the out of phase state of the reference signal. |
