| 摘要 |
<p>The present invention relates to a method for upgrading a node in a remote meter reading system and a device thereof. The method for upgrading a lower node with an upper node in the remote meter reading system comprises a step of: requesting version information of a current firmware image to a plurality of lower nodes and receiving the version information from each lower node; connecting a list of the lower nodes, in which version update is requested based on the received version information, to the version information and storing the connected information; transmitting firmware image information to perform version upgrade to a first lower node selected from the list of the lower nodes; and transmitting a copy command of the firmware image information to the first lower node in order for the the first lower node to upgrade a selected second lower node in the list by using the firmware image information, when the version upgrade of the selected first lower node is completed. According to the present method for upgrading the node and the device thereof, the upper node performs an upgrade to a lower node in the network, and the upgraded lower node follows a copy command to upgrade other surrounding lower nodes, thereby shortening upgrade time and reducing costs in comparison to an existing one-to-one upgrade method.</p> |
