Control system and method for bus ring network

The invention discloses a control system and method for a bus ring network, mainly relates to the technical field of circuit control, and is used for solving the technical problem that power supply of an existing bus ring network mainly depends on manual switching. Comprising a circuit connection module used for generating a circuit activation instruction when it is determined that a first power supply which is shut down exists; wherein the first power supply is connected with the second power supply through the preset circuit module; the edge calculation module is used for setting a change-over switch corresponding to the circuit activation instruction in the preset circuit module to be in a closed state, so that equipment corresponding to the first power supply obtains electric energy; receiving circuit data uploaded by the preset circuit module to determine whether the circuit data is hidden danger data; and the alarm module is used for sending a preset alarm instruction to a maintenance terminal when the