Media access controller with a shared class message delivery capability
    1.
    发明授权
    Media access controller with a shared class message delivery capability 失效
    具有共享类消息传递功能的媒体访问控制器

    公开(公告)号:US5491531A

    公开(公告)日:1996-02-13

    申请号:US54703

    申请日:1993-04-28

    CPC分类号: H04L12/40013 H04L49/90

    摘要: Activity on a digital communication network is divided into periodic intervals, that are further subdivided into first and second phases during which different classes of data are transmitted. A media access controller for a station on the network has an interface that connects to an external device which supplies first and second classes of data for transmission over the network. A first memory stores the first class of data and a second memory stores the second class of data. The external device supplies a third class of data that may be transmitted over the network during either the first or second phases. The third class of data is held in a third memory. A transmitter connects the three memories to the interface in order to send data over the network. A control circuit regulates the transfer of data from the memories to the transmitter, with data being transferred from the first memory when the media access controller has access to the network during one of the first phases. Data is transferred from the second memory when the media access controller has access to the network during one of the second phases, while data in the said third memory is transmitted when the media access controller has access to the network during either of the first or second phases. The transfer of data is governed by three pointers that indicate the amount of data within the memories that has been released for transmission by the device.

    摘要翻译: 数字通信网络上的活动被划分为周期性间隔,其被进一步细分为第一和第二阶段,在该阶段期间传送不同类别的数据。 用于网络上的站的媒体访问控制器具有连接到外部设备的接口,该外部设备提供第一和第二类数据以通过网络传输。 第一存储器存储第一类数据,第二存储器存储第二类数据。 外部设备提供可以在第一阶段或第二阶段期间通过网络发送的第三类数据。 第三类数据被保存在第三存储器中。 发射机将三个存储器连接到接口,以便通过网络发送数据。 控制电路调节从存储器到发送器的数据传输,当媒体访问控制器在第一阶段之一期间访问网络时,数据从第一存储器传送。 当介质访问控制器在第二阶段中的一个阶段期间访问网络时,从第二存储器传送数据,而当媒体访问控制器在第一或第二阶段期间访问网络时,传送所述第三存储器中的数据 阶段 数据传输由三个指针指示,这三个指针指示已经释放以供设备传输的存储器内的数据量。

    Communication network with time coordinated station activity by time
slot and periodic interval number
    2.
    发明授权
    Communication network with time coordinated station activity by time slot and periodic interval number 失效
    具有通过时隙和周期间隔数的时间协调站活动的通信网络

    公开(公告)号:US5537549A

    公开(公告)日:1996-07-16

    申请号:US54323

    申请日:1993-04-28

    摘要: Activity on a digital communication network is divided into periodic intervals and during a segment of each periodic interval a moderator station broadcasts a numerical count of the periodic intervals to all stations on the network. Each station has a memory in which a numerical value is stored, and a comparator that compares the numerical value to the numerical count received from the network. When the numerical count of the periodic intervals equals the numerical value, an apparatus within the station performs a defined operation, such as transmitting a message over the network or synchronizing a clock in the station to a master time standard. The equality of the periodic interval count and the numerical value also can be used to determine when to signal an external device. By using the count of the periodic intervals in this manner, the operation of several stations on the network can be coordinated.

    摘要翻译: 数字通信网络上的活动被划分为周期性间隔,并且在每个周期性间隔的段期间,主持人站向网络上的所有站广播周期性间隔的数字计数。 每个站具有存储数值的存储器,以及将数值与从网络接收的数值进行比较的比较器。 当周期性间隔的数值等于数值时,站内的装置执行定义的操作,例如通过网络发送消息或将站中的时钟同步到主时间标准。 周期性间隔计数和数值的相等也可以用于确定何时向外部设备发信号。 通过以这种方式使用周期性间隔的计数,可以协调网络上的几个站的操作。

    Embedded network traffic analyzer
    3.
    发明授权
    Embedded network traffic analyzer 有权
    嵌入式网络流量分析仪

    公开(公告)号:US07783740B2

    公开(公告)日:2010-08-24

    申请号:US10670611

    申请日:2003-09-25

    IPC分类号: G06F15/173

    摘要: The present invention provides a system and method for interfacing to a network. The system includes a network interface comprising an embedded network traffic analyzer (NTA) capable of network traffic analyzer filter and capture capabilities. The NTA also includes an artificial intelligence component that facilitates diagnosing and/or prognosing state and/or health of the network (and/or components thereof).

    摘要翻译: 本发明提供了一种用于与网络接口的系统和方法。 该系统包括网络接口,其包括能够进行网络流量分析器过滤和捕获能力的嵌入式网络流量分析器(NTA)。 NTA还包括人造智能组件,其有助于诊断和/或预测网络的状态和/或健康(和/或其组件)。

    Adjustment of data collection rate based on anomaly detection
    5.
    发明授权
    Adjustment of data collection rate based on anomaly detection 有权
    基于异常检测调整数据采集率

    公开(公告)号:US07657333B2

    公开(公告)日:2010-02-02

    申请号:US11862983

    申请日:2007-09-27

    IPC分类号: G05B13/02 G05B11/01

    CPC分类号: G05B21/02 Y02P90/18

    摘要: Systems and methods that vary multiple data sampling rates, to collect sets of data with different levels of granularity for an industrial system. The data for such industrial system includes sets of data from the “internal” data stream(s) (e.g., history data collected from an industrial unit) and sets of data from an “external” (e.g., traffic data on network services) data stream(s), based in part on the criticality/importance criteria assigned to each collection stage. Each set of data can be assigned its own unique data collection rate. For example, a higher sample rate can be employed when collecting data from the network during an operation stage that is deemed more critical (e.g., dynamic attribution of predetermined importance factors) than the rest of the operation.

    摘要翻译: 改变多种数据采样率的系统和方法,以便为工业系统收集不同粒度级别的数据集。 这种工业系统的数据包括来自“内部”数据流(例如,从工业单元收集的历史数据)和来自“外部”(例如,网络服务的业务数据)数据的数据集的数据集 流部分地基于分配给每个收集阶段的关键性/重要性标准。 每组数据可以分配自己独特的数据采集率。 例如,当在被认为比其余操作更为关键(例如,预定重要因素的动态归因)的操作阶段从网络收集数据时,可以采用更高的采样率。

    Method and apparatus for providing redundant I/O adapters in machine and process controllers
    8.
    发明申请
    Method and apparatus for providing redundant I/O adapters in machine and process controllers 失效
    在机器和过程控制器中提供冗余I / O适配器的方法和设备

    公开(公告)号:US20070016701A1

    公开(公告)日:2007-01-18

    申请号:US11167700

    申请日:2005-06-27

    IPC分类号: G06F13/38

    摘要: Methods and apparatus for redundancy in machine or process control systems provide redundant communication adapters located with the groups of I/O modules, so that if the first communication adapter faults or becomes unavailable, a second communication adapter will perform all of the necessary functions of the first adapter. The adapters are connected to a multiplexing module for communicating input data from the I/O modules to the communication adapters, for exchanging initialization data with the first communication adapter and the second communication adapter to initialize the redundant mode of operation and for monitoring communication of the first communication adapter and the second communication adapter on the network to start up the second adapter as the primary adapter for communicating both input data and output data with the I/O modules.

    摘要翻译: 在机器或过程控制系统中冗余的方法和装置提供了与I / O模块组一起定位的冗余通信适配器,使得如果第一通信适配器故障或变得不可用,则第二通信适配器将执行所有必需的功能 第一个适配器。 适配器连接到多路复用模块,用于将来自I / O模块的输入数据传送到通信适配器,用于与第一通信适配器和第二通信适配器交换初始化数据以初始化冗余操作模式并监视 第一通信适配器和网络上的第二通信适配器,以将第二适配器作为用于通过I / O模块传送输入数据和输出数据的主适配器。

    Embedded network traffic analyzer
    9.
    发明申请
    Embedded network traffic analyzer 有权
    嵌入式网络流量分析仪

    公开(公告)号:US20050071445A1

    公开(公告)日:2005-03-31

    申请号:US10670611

    申请日:2003-09-25

    摘要: The present invention provides a system and method for interfacing to a network. The system includes a network interface comprising an embedded network traffic analyzer (NTA) capable of network traffic analyzer filter and capture capabilities. The NTA also includes an artificial intelligence component that facilitates diagnosing and/or prognosing state and/or health of the network (and/or components thereof).

    摘要翻译: 本发明提供了一种用于与网络接口的系统和方法。 该系统包括网络接口,其包括能够进行网络流量分析器过滤和捕获能力的嵌入式网络流量分析器(NTA)。 NTA还包括人造智能组件,其有助于诊断和/或预测网络的状态和/或健康(和/或其组件)。

    Method for processing dynamically allocated timers in a real time operating system
    10.
    发明授权
    Method for processing dynamically allocated timers in a real time operating system 有权
    在实时操作系统中处理动态分配的定时器的方法

    公开(公告)号:US06732287B1

    公开(公告)日:2004-05-04

    申请号:US09599271

    申请日:2000-06-22

    IPC分类号: G06F114

    CPC分类号: G06F1/14

    摘要: A method and system for processing timers are presented in which a plurality of unordered timer lists may be kept according to timer duration. At least one timer list is processed selectively according to a counter associated with the timer list. The method and system reduce the processing overhead associated with timers via the selective processing of the list, and further result in little or no overhead increase as the number of active timers increases. A system is also provided for processing timers, which may include multiple timer lists.

    摘要翻译: 提出了一种用于处理定时器的方法和系统,其中可以根据定时器持续时间来保持多个无序定时器列表。 根据与定时器列表相关联的计数器,选择性地处理至少一个定时器列表。 该方法和系统通过列表的选择性处理来减少与定时器相关联的处理开销,并且随着活动定时器的数量增加,进一步导致很少或没有开销增加。 还提供用于处理定时器的系统,其可以包括多个定时器列表。