Control device, sensor node, and computer-readable recording medium

    公开(公告)号:US10515541B2

    公开(公告)日:2019-12-24

    申请号:US15700611

    申请日:2017-09-11

    申请人: FUJITSU LIMITED

    IPC分类号: H04W84/18 G08C25/00

    摘要: A control device includes: a processor configured to: control calibration of sensing values in a sensor node group formed of sensor nodes each including a sensor and a wireless device and being capable of performing multi-hop communication; divide the sensor node group into a plurality of clusters such that each of the clusters includes at least one partial cluster including a relay node and a child node that performs wireless communication; collect an average of sensing values in each of the partial clusters from the relay node of each of the partial clusters; calculate a calibration reference value of each of the clusters from the collected averages of the respective partial clusters; and provide the calculated calibration reference value of each of the clusters to each of the clusters.

    Control device, control method, and computer-readable recording medium

    公开(公告)号:US10425879B2

    公开(公告)日:2019-09-24

    申请号:US15649109

    申请日:2017-07-13

    申请人: FUJITSU LIMITED

    IPC分类号: H04W40/10 H04W52/02 H04W84/18

    摘要: A control device includes: a processor configured to: control a multihop communication path in a wireless network that includes a node group; when a first power storage speed of a target relay node in the node group is negative, calculate a first estimated time that is needed to reach a target power-storage value in a case where the target relay node is in a non-relay operating state; and in accordance with a length of the first estimated time calculated, change a state of the target relay node into the non-relay operating state or a stop state and change a state of another node, which is in the non-relay operating state, into a relay operating state.

    Data sharing method and data processing system
    7.
    发明授权
    Data sharing method and data processing system 有权
    数据共享方法和数据处理系统

    公开(公告)号:US09553928B2

    公开(公告)日:2017-01-24

    申请号:US14090954

    申请日:2013-11-26

    申请人: FUJITSU LIMITED

    摘要: A data sharing method includes detecting by a first data processing apparatus that is among multiple data processing apparatuses that share data, any one among a shortage of available memory, a change in remaining battery power, a change in a relative positional distance of the first data processing apparatus to a second data processing apparatus that is among the data processing apparatuses, a change in a communication speed of communication with the second data processing apparatus, and an interruption of communication with the second data processing apparatus; and transmitting by the first data processing apparatus to a third data processing apparatus that is among the data processing apparatuses, a shared portion of the data saved in the first data processing apparatus.

    摘要翻译: 一种数据共享方法,包括:由共享数据的多个数据处理装置之中的第一数据处理装置进行检测,可用存储器不足,剩余电池电力的变化,第一数据的相对位置距离的变化 处理装置到数据处理装置之中的第二数据处理装置,与第二数据处理装置的通信通信速度的改变以及与第二数据处理装置的通信的中断; 并且由第一数据处理装置向数据处理装置之中的第三数据处理装置发送保存在第一数据处理装置中的数据的共享部分。

    Multi-core processor system and control method
    8.
    发明授权
    Multi-core processor system and control method 有权
    多核处理器系统及控制方法

    公开(公告)号:US09547576B2

    公开(公告)日:2017-01-17

    申请号:US14151421

    申请日:2014-01-09

    申请人: FUJITSU LIMITED

    IPC分类号: G06F11/34 G06F9/50

    摘要: A multi-core processor system includes a multi-core processor that has plural core groups; and a storage device that stores a constraint on execution time for each application. A first identified core of the multi-core processor is configured to identify a constraint on execution time of a given application that is among the applications and for which an invocation instruction is received; determine whether the identified constraint meets a performance drop condition; assign the given application to a predetermined core of the multi-core processor, upon determining that the identified constraint meets the performance drop condition; and notify a second identified core of a core group among the core groups, of an assignment instruction for the given application, upon determining that the identified constraint does not meet the performance drop condition.

    摘要翻译: 多核处理器系统包括具有多个核心组的多核处理器; 以及存储装置,其对每个应用程序存储对执行时间的约束。 多核处理器的第一识别核心被配置为识别对应用中的给定应用的执行时间的约束,并且其中接收到调用指令; 确定所识别的约束是否满足性能下降条件; 在确定所识别的约束满足性能下降条件时,将给定应用分配给多核处理器的预定核心; 并且在确定所识别的约束不满足性能下降条件时,通知所述核心组中的核心组的第二识别核心,给定应用的分配指令。

    Determining method, computer product, determining apparatus, and determining system
    9.
    发明授权
    Determining method, computer product, determining apparatus, and determining system 有权
    确定方法,计算机产品,确定装置和确定系统

    公开(公告)号:US09529073B2

    公开(公告)日:2016-12-27

    申请号:US14619879

    申请日:2015-02-11

    申请人: FUJITSU LIMITED

    摘要: A determining method executed by a processor includes obtaining distance information that indicates a distance between monitoring apparatuses disposed to encompass a given area in which wireless communications apparatuses are scattered; causing a wireless signal to be transmitted and received between the monitoring apparatuses by multi-hop communication among the wireless communications apparatuses; calculating an estimated distance between the monitoring apparatuses, based on a hop count of the wireless signal multi-hop communicated among the monitoring apparatuses; and making a determination concerning a vacant area in which none of the wireless communications apparatuses is present, based on a result of comparison of the distance indicated by the obtained distance information and the calculated estimated distance.

    摘要翻译: 由处理器执行的确定方法包括获取指示被布置为包围无线通信装置分散的给定区域的监视装置之间的距离的距离信息; 通过所述无线通信装置之间的多跳通信,在所述监视装置之间发送和接收无线信号; 基于所述监视装置之间传送的无线信号多跳的跳数来计算所述监视装置之间的估计距离; 并且基于由所获得的距离信息指示的距离与所计算的估计距离的比较结果,确定不存在无线通信装置的空闲区域。