US 12,107,901 B2
Device management system, device management method, and recording medium having device management program recorded thereon
Noriyuki Koyama, Sakai (JP); and Takahiro Ichitsuka, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Apr. 1, 2022, as Appl. No. 17/711,796.
Claims priority of application No. 2021-074201 (JP), filed on Apr. 26, 2021.
Prior Publication US 2022/0345499 A1, Oct. 27, 2022
Int. Cl. H04L 9/40 (2022.01); H04L 67/10 (2022.01)
CPC H04L 63/205 (2013.01) [H04L 67/10 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A device management system which manages a plurality of management target devices connected to a network, the device management system comprising:
an acquisition circuit which acquires log information indicating each of connection histories of each of the plurality of management target devices to the network;
an extraction circuit which extracts, based on the log information, a first management target device from the plurality of management target devices; and
a grouping circuit which registers, based on the log information and first identification information of the first management target device, each of the plurality of management target devices in one of a plurality of groups,
wherein when a management target device that is registered in advance in a first group exists in the plurality management target devices, the extraction circuit extracts the management target device that is registered in advance in the first group, as the first management target device,
when the management target device that is registered in advance in the first group is non-existent in the plurality of management target devices, the extraction circuit extracts a first segment that is most common among respective segments in IP addresses of the plurality of management target devices, and extracts a management target device, from the plurality of management target devices, to which the first segment is allocated, as the first management target device,
when the first segment of the first management target device is extracted based on first log information of a first predetermined period, the grouping circuit further registers a second management target device corresponding to identical devices that are included in the first log information and that are included in second log information of a second predetermined period, which is a period before the first predetermined period, such that
the second management target device is registered in the first group when a segment of the second management target device included in the first log information and a segment of the second management target device included in the second log information are the same as each other,
the second management target device is registered in a second group when the segment of the second management target device included in the first log information and the segment of the second management target device included in the second log information are different from each other.