Remote control area network (CAN) bus communication system and implementation method thereof

The invention discloses a remote control area network (CAN) bus communication system and an implementation method thereof. The system comprises a centralizing unit mounted in a substation or a ring main unit and a plurality of collecting units which are respectively mounted on a cable tunnel wall, wherein the centralizing unit is respectively connected with each collecting unit through the CAN bus. The state in the cable tunnel can be monitored just by laying one CAN bus. Besides, the problem of terminal resistance matching of the collecting units of the remote CAN bus communication is solved, and the problem that the communication baud rate among the units is inconsistent is solved. The system and method have the characteristics of flexibility and convenience in case of long communication distance.