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    • 7. 发明授权
    • Process control system for monitoring and displaying diagnostic
information of multiple distributed devices
    • 用于监控和显示多个分布式设备诊断信息的过程控制系统
    • US5995916A
    • 1999-11-30
    • US631557
    • 1996-04-12
    • Mark NixonLarry O. JundtRobert B. HavekostRon Ottenbacher
    • Mark NixonLarry O. JundtRobert B. HavekostRon Ottenbacher
    • G06F11/32G06F3/00G06F15/00
    • G05B15/02G05B23/0208G06F11/321
    • A process control system includes a diagnostic monitoring and display functionality for viewing, in a coherent manner, diagnostic information relating to a process that operates over multiple devices and system components. Although the multiple devices and system components typically encompass widely different device types and operational standards, the process control system incorporates diagnostic information relating to all devices and presents this information to a system user in a uniform manner so that an operating control strategy and the diagnostic information are presented as though all control actions and diagnostic information were performed or generated at a single location. A user-defined diagnostic program is assembled as a set of function blocks and control modules and represented as a set of layers of interconnected control objects identified as modules which include informational structures accessed as attributes. Information is accessed using device hierarchy attribute addressing, supporting direct addressing of I/O signals from modules, bypassing the use of I/O function blocks and avoiding I/O function block behavior.
    • 过程控制系统包括用于以一致的方式查看与在多个设备和系统组件上操作的过程有关的诊断信息的诊断监视和显示功能。 虽然多个设备和系统组件通常包含广泛不同的设备类型和操作标准,但是过程控制系统包括与所有设备相关的诊断信息,并且以均匀的方式将该信息呈现给系统用户,使得操作控制策略和诊断信息 被呈现为在单个位置执行或生成所有控制动作和诊断信息。 用户定义的诊断程序被组合为一组功能块和控制模块,并且被表示为被识别为模块的互连控制对象的一组层,其包括作为属性访问的信息结构。 使用设备层级属性寻址访问信息,支持从模块直接寻址I / O信号,绕过使用I / O功能块并避免I / O功能块行为。
    • 9. 发明授权
    • Deferred acknowledgment communications and alarm management
    • 延期确认通讯和报警管理
    • US07574531B2
    • 2009-08-11
    • US11518684
    • 2006-09-11
    • William E. BennettKen J. BeoughterRobert B. HavekostJohn R. ShepardDwight D. Jennings
    • William E. BennettKen J. BeoughterRobert B. HavekostJohn R. ShepardDwight D. Jennings
    • G06F15/16
    • H04L47/27H04B7/18593H04L1/1685H04L1/188H04L1/1887H04L47/10H04L47/14H04L47/283H04L69/324
    • A communication technique enables the efficient transmission of data through a low bandwidth and/or time delayed communication link and minimizes the idle time of the communication link by using a deferred acknowledgment of message bundles to temporally pack the communication link. The transmitting system stores messages to be transmitted in a pending message queue and applies a dynamic window to the pending message queue to define a message bundle to be sent through the slow communication link. The transmitting system requests an acknowledgment for at least one message within the bundle, but does not require an acknowledgment for every message within the bundle. Transmitted messages are temporarily stored as outstanding messages in a retransmission queue until the transmitted messages are acknowledged or until a time-out period associated with the messages has lapsed. When the transmitting station receives a timely acknowledgment in response to a requested acknowledgment, the transmitting station removes all outstanding messages associated with that acknowledgment from the retransmission queue.
    • 通信技术能够通过低带宽和/或时间延迟的通信链路有效地传输数据,并且通过使用消息束的延迟确认来最小化通信链路的空闲时间,以暂时包装通信链路。 发送系统存储要在待定消息队列中发送的消息,并将动态窗口应用于待定消息队列,以定义要通过慢速通信链路发送的消息包。 发送系统向捆绑中的至少一个消息请求确认,但不需要对捆绑内的每个消息进行确认。 传输的消息作为未完成的消息临时存储在重传队列中,直到发送的消息被确认或直到与消息相关联的超时周期已经失效。 当发送站响应于所请求的确认接收到及时确认时,发送站从重发队列中删除与该确认相关联的所有未完成的消息。