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    データ通信システムおよびデータ通信装置
    2.
    发明专利
    データ通信システムおよびデータ通信装置 有权

    公开(公告)号：JPWO2010073352A1

    公开(公告)日：2012-05-31

    申请号：JP2010543688

    申请日：2008-12-25

    申请人： 三菱電機株式会社

    发明人： 中村　真人 ,  真人 中村

    IPC分类号： H04L12/28 ,  H04L12/417

    CPC分类号： H04L12/433 ,  H04L12/403 ,  H04L2012/4026

    摘要： マスタ局とスレーブ局との間のデータ通信をイーサネット(登録商標)を用いたトークンパッシング方式で行なうデータ通信システムにおいて、マスタ局Mの通信処理部3Mは、スレーブ局SL1,SL2との間でトークンフレームを巡回させてスレーブ局SL1,SL2からのデータを受信する処理をリトライ処理する場合には、演算処理装置との間でデータの送受信を行うデータ処理部2へスレーブ局SL1,SL2からのデータを転送することなくリトライ処理する。

    Method for processing data packets received via first interface and device for carrying out the method
    3.
    发明专利
    Method for processing data packets received via first interface and device for carrying out the method 有权
    用于处理通过第一接口接收到的数据包的方法和用于执行该方法的装置

    公开(公告)号：JP2012055002A

    公开(公告)日：2012-03-15

    申请号：JP2011243545

    申请日：2011-11-07

    申请人： Thomson Licensing ,  トムソン ライセンシングThomson Licensing

    发明人： BORSUM MALTE ,  KLAUS GEDOKE

    IPC分类号： H04L29/06 ,  H04B7/15 ,  H04L12/28 ,  H04L12/417 ,  H04L12/56

    CPC分类号： H04W28/14 ,  H04L12/40071 ,  H04L12/4011 ,  H04L12/66 ,  H04W84/12

    摘要： PROBLEM TO BE SOLVED: To provide a solution for a problem that exists during transmission of data packets received on a wired connection via a first interface (IEEE 1394) and a second interface (HIPERLAN/2) designed for the wireless transmission of data, and between receiving the data and transmitting the data via the second interface, which leads to a relatively large delay time which must be bridged by means of a suitably dimensioned buffer memory.SOLUTION: The invention provides means that enables the maximum delay time to be further reduced. According to the invention, the necessary processing of the received IEEE 1394 bus packets is performed section by section immediately after a received data packet has arrived. After the complete number of bus packets falling within a transmission frame has been received, there is therefore no longer any lengthy processing time required and the probability of missing the time slots reserved in the next transmission frame is significantly reduced. The buffer memory for bridging the delay time period can therefore be correspondingly smaller.

    摘要翻译： 要解决的问题：提供一种在通过第一接口（IEEE 1394）和第二接口（HIPERLAN / 2）在有线连接上接收的数据分组的传输期间存在的问题的解决方案，第一接口（HIPERLAN / 2）被设计用于无线传输 数据，并且在接收数据和经由第二接口发送数据之间，这导致相对较大的延迟时间，该延迟时间必须通过适当尺寸的缓冲存储器进行桥接。 解决方案：本发明提供了能够进一步减少最大延迟时间的手段。 根据本发明，在接收的数据分组到达之后立即逐个地执行所接收的IEEE 1394总线分组的必要处理。 在已经接收到落在传输帧内的总数据包的总数之后，因此不再需要任何冗长的处理时间，并且显着地减少了在下一个传输帧中保留的时隙的概率。 因此，用于桥接延迟时间段的缓冲存储器可以相应地较小。 版权所有（C）2012，JPO＆INPIT

    Field network system and field communication method
    8.
    发明专利
    Field network system and field communication method 审中-公开
    现场网络系统和现场通信方法

    公开(公告)号：JP2009071429A

    公开(公告)日：2009-04-02

    申请号：JP2007235503

    申请日：2007-09-11

    申请人： Yokogawa Electric Corp ,  横河電機株式会社

    发明人： MACHIDA AKIHARU

    IPC分类号： H04L12/40 ,  H04L12/417

    摘要： PROBLEM TO BE SOLVED: To provide a field network system capable of detecting abnormality without depending on the scale of a system, and to provide a field communication method.
    SOLUTION: The field network system is configured by connecting autonomous nodes 1 and 1, etc., to a field network 2. Each autonomous node 1 includes: a communication procedure defining means 11 for determining a communication procedure on the field network 2; a detection means 12 for detecting a communication condition on the field network 2 at prescribed timing with the timing of communication that the autonomous node 1 engages in as a reference; and a comparison means 13 for comparing the detected result of the detection means 12 with the communication procedure defined by the communication procedure defining means 11.
    COPYRIGHT: (C)2009,JPO&INPIT

    摘要翻译： 要解决的问题：提供一种能够检测异常而不依赖于系统规模的现场网络系统，并提供现场通信方法。 解决方案：通过将自主节点1和1等连接到现场网络2来配置现场网络系统。每个自主节点1包括：通信过程定义装置11，用于确定现场网络2上的通信过程 ; 一个检测装置12，用于以规定的定时用自主节点1所参与的通信定时作为参考来检测现场网络2上的通信状况; 以及比较装置13，用于将检测装置12的检测结果与由通信过程定义装置11定义的通信过程进行比较。版权所有：（C）2009，JPO＆INPIT

    Information processing terminal, transmission right patrol system, transmission right circulating method, and transmission right acquisition program
    10.
    发明专利
    Information processing terminal, transmission right patrol system, transmission right circulating method, and transmission right acquisition program 有权

    公开(公告)号：JP4012851B2

    公开(公告)日：2007-11-21

    申请号：JP2003111272

    申请日：2003-04-16

    申请人： 矢崎総業株式会社

    发明人： 誠 宇田

    IPC分类号： H04L12/417 ,  H04L29/06

    CPC分类号： H04L12/417 ,  H04L29/06 ,  H04L69/28

    摘要： A plurality of information processing terminals 100 to 130 are connected to a network. Each processing terminal parameter-manages the total of the idle time units obtained through the detection of the idle time on the network. The processing terminal acquires a transmission privilege when the parameter and its own node ID agree with each other, and sends out the transmission frame inclusive of its own node ID to the network. The reception means 105 receives, from the network, the transmission frame transmitted from the other information processing terminals. The control means 103 extracts the node ID included in the transmission frame thus received and updates the parameter to the node thus extracted, and adjusts the synchronization of the parameters commonly possessed on the same network. In accordance with such a configuration, the transmission privilege can be rounded without exchanging a token frame between specified nodes.