Patent ID: 9158529
Filing Date: 2015-10-13
Classification: G06F,H01H

Abstract:
1. A firmware updating method for a digital protective relay having a plurality of modules each comprising a central processing unit (CPU), at least one memory and at least one communication channel, the method comprising: determining whether a master device has been connected with a main processing module of the plurality of modules; receiving firmware update related information from the master device upon determining that the master device has been connected; recognizing a target module of the plurality of modules that has firmware to be updated based on the received firmware update related information; notifying necessity of a firmware update to the recognized target module; receiving a firmware update ready message from the recognized target module; downloading the firmware from the master device into the recognized target module after receiving the firmware update ready message; and installing the downloaded firmware, wherein the digital protective relay and the master device are connected to each other via a wireless interface, and wherein each of the other of the plurality of modules may be connected to the master device via the main processing module, and wherein downloading and installing the firmware are simultaneously performed when a plurality of target modules are present.