1 results about "Physical media" patented technology

The invention belongs to the technical field of DCS platform communication of a nuclear power plant, and specifically relates to a security-level DCS high-speed redundant bus communication method. The method comprises the following steps: (1) transmitting by use of two paths of different physical mediums; (2) transmitting by use of two paths of different link layers; (3) adopting two paths of different receiving processing modules; (4) starting sending according to two frame structures determined in the step (2) on two different redundant buses determined in the step (1) after a sending module receives sending enabling signal; (5) decoding received data by use of two receiving processing modules determined in the step (3) to accomplish a rear flag bit; (6) setting one of two receiving processing modules determined in the step (3) as the main processing module; and (7) waiting the setting of the other path of data flag bit in a system set time after the main processing module finds a path of bus set flag bit; if the set occurs, comparing the data; otherwise, warning the fault of the redundant bus path.