公开(公告)号：US20170358192A1

公开(公告)日：2017-12-14

申请号：US15601176

申请日：2017-05-22

Applicant: FUJITSU LIMITED

Inventor： Masanori Yamazaki ,  Kazuhito MATSUDA

IPC: G08B21/02 ,  H04W64/00 ,  H04L12/26 ,  H04W4/02

CPC classification number: G08B21/0272 ,  G08B21/0277 ,  H04L43/106 ,  H04W4/025 ,  H04W64/003

Abstract: Gateways transfer data between publishers and subscribers. Upon receiving an acquisition request for acquiring device-information from a subscriber, a first gateway stores, as routing-information, a matching condition for transferring device-information and a transfer-destination address, and transfers the acquisition request. Upon receiving device-information issued by a publisher, the second gateway stores the device-information in association with a reception time of the device-information, adds, to the routing information, a matching result including a source address of the device-information and the reception time, and transfers the device-information through gateways to the first gateway, according to the routing information. When the acquisition request includes a time condition related to past time, the first gateway generates an accumulating area for accumulating device-information, and when device-information is acquired in response to the acquisition request, accumulates the acquired device-information in the accumulating area, and transmits the accumulated device-information to the subscriber after a predetermined time has elapsed.

公开(公告)号：US20170357682A1

公开(公告)日：2017-12-14

申请号：US15492591

申请日：2017-04-20

Applicant: FUJITSU LIMITED

Inventor： Kazuhito MATSUDA

IPC: G06F17/30

Abstract: There is provided an information management method used by a computer that manages a system storing key-data pairs, each including a key obtained by application of a predetermined function and data associated with the key, in such a way as to be distributed among a plurality of nodes. The method includes storing, in a management table, information on an identifier common to a plurality of systems, one or more keys commonly assigned to the identifier, and nodes assigned to the identifier; and reflecting, when a node whose assignment to the identifier has been once cancelled is reassigned to the identifier, the reassignment of the node into the management table, and implementing synchronization of one or more key-data pairs corresponding to the keys assigned to the identifier between the reassigned node and remaining nodes assigned to the identifier.