| 摘要 |
The present invention relates to a method, an apparatus, and a system for upgrading software of multiple nodes. A master node sets multiple modes, generates control data including control information in a first mode, transmits a control message including the generated control data, generates upgrade data including upgrade information by converting a mode into a second mode if a software upgrade event occurs, and additionally transmits the generated upgrade data to the control message. A plurality of slave nodes upgrade the software by corresponding to the upgrade information thereof included in the upgrade data if receiving the control message including the upgrade data. The control message can go back to the master node after sequentially passing through the slave nodes located on a route in a ring structure. Therefore, the slave nodes, connected to the master node, can be selectively upgraded in a common node and an upgrade mode while continuity of operation is maintained. The size of the control data can be reduced in a common circumstance by generating a data frame to be variable according to the mode. |
