公开(公告)号：US20180274929A1

公开(公告)日：2018-09-27

申请号：US15756716

申请日：2016-04-06

Applicant: HITACHI, LTD.

Inventor： Masayoshi MASE ,  Yuxin LIANG ,  Junji YAMAMOTO

IPC: G01C21/20 ,  G08G3/02

Abstract: Provided is a technique for reducing the calculation load in navigation management of a moving body within a freely navigable space. The system has a storage unit 21 for storing movement locus data showing a plurality of movement loci in which a moving body is moved in a two-dimensional or three-dimensional space in which free movement is possible; a network model management unit 11 for integrating sections approximated by the plurality of movement loci on the basis of the movement locus data, and generating a network model showing a route within the space; a navigation schedule calculation unit 13 for calculating a navigation schedule when a plurality of moving bodies planning to pass within the space navigate within that space according to the network model route; and a display processing unit 15 for outputting the calculated navigation schedule to a display apparatus.

公开(公告)号：US20150163195A1

公开(公告)日：2015-06-11

申请号：US14562139

申请日：2014-12-05

Applicant: Hitachi, Ltd.

Inventor： Katsuto SATO ,  Junji YAMAMOTO

IPC: H04L29/12 ,  G06F13/42 ,  H04L12/24

CPC classification number: H04L61/2038 ,  G06F13/4022 ,  G06F13/4221 ,  H04L41/0806 ,  H04L61/6045

Abstract: A network address management unit (210) allocates, to the first edge node, a first network address (500) on which a physical configuration of a first edge node (100a) is reflected. The network address management unit, when a second edge node (100b) is coupled to the first edge node, allocates, to the first edge node, a second network address (510) on which the physical configuration of the first edge node is reflected with respect to the second edge node. When the first edge node receives a packet that designates the first or second network address as a destination network address, the first edge node, based on the destination network address designated by the received packet, determines whether the received packet is transferred to the second edge node and discriminates a transfer destination path in the first edge node.

Abstract translation: 网络地址管理单元（210）向第一边缘节点分配反映第一边缘节点（100a）的物理配置的第一网络地址（500）。 网络地址管理单元，当第二边缘节点（100b）耦合到第一边缘节点时，向第一边缘节点分配第二网络地址（510），第一边缘节点的物理配置被反映在其上 相对于第二边缘节点。 当第一边缘节点接收到指定第一或第二网络地址作为目的地网络地址的分组时，第一边缘节点基于由接收到的分组指定的目的地网络地址来确定所接收的分组是否被传送到第二边缘 并且识别第一边缘节点中的传送目的地路径。

公开(公告)号：US20140237202A1

公开(公告)日：2014-08-21

申请号：US14184128

申请日：2014-02-19

Applicant: Hitachi, Ltd.

Inventor： Junji YAMAMOTO ,  Hiroya MATSUBA ,  Katsuto SATO ,  Koichi TAKAYAMA

IPC: G06F3/06

CPC classification number: G06F3/0641 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/0635 ,  G06F3/067

Abstract: There is provided an autonomous distributed type file system which is connected to a data reference device through a first network. The autonomous distributed type file system includes a plurality of storage device units which are mutually connected through a second network and are connected to the first network. Each of the storage device unit includes a local storage and a local controller. The local controller includes a storage directory and a duplicated data maintaining unit. The duplicated data maintaining unit refers to the storage directory, and continuously keeps same contents of duplicated data items in a range without running out of storage capacity of an own node. When there is no free space in the storage capacity, duplicate writing of the data with the same contents is prevented.

Abstract translation: 提供了通过第一网络连接到数据参考设备的自主分布型文件系统。 自主分布型文件系统包括通过第二网络相互连接并连接到第一网络的多个存储装置单元。 每个存储设备单元包括本地存储器和本地控制器。 本地控制器包括存储目录和复制的数据维护单元。 复制数据维持单元是指存储目录，并且在一个范围内连续保持重复数据项的相同内容，而不会超出自身节点的存储容量。 当存储容量没有可用空间时，可以防止重复写入具有相同内容的数据。