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    • 1. 发明授权
    • Analyzing a communication performance of an IED
    • 分析IED的通信性能
    • US08392557B2
    • 2013-03-05
    • US12857196
    • 2010-08-16
    • Gunnar HilpertMichael ObristWolfgang Wimmer
    • Gunnar HilpertMichael ObristWolfgang Wimmer
    • G06F15/173
    • H04L43/50H02J13/0006H04L41/145H04L41/147H04L43/10H04L67/12H04L69/02Y02E60/723Y02E60/724Y02P90/18Y04S10/16Y04S10/18Y04S40/168
    • A communication stack performance of an Intelligent Electronic Device (IED) is analyzed in a communication network of a Substation Automation (SA) system. The IED processes network messages that are transferred with, or belonging to, a specific configurable SA communication service. A plurality of application level scenarios corresponding to a high communication load is executed. Among all network messages captured or intercepted during the scenario, the network messages destined to the IED and sent by the IED in response are identified. A number of the identified messages, a number of specific communication protocol elements or data items related to a service-specific property, and a number of changed protocol elements, which are indicative of an SA event, for which the value of the data item has changed compared to the value of the same data item in a previous message, are determined. An IED-intrinsic processing time of the identified messages is likewise determined, based on which parameter values of a service specific processing time model are calculated.
    • 在变电站自动化(SA)系统的通信网络中分析智能电子设备(IED)的通信堆栈性能。 IED处理与特定可配置的SA通信服务一起传送或属于特定可配置的SA通信服务的网络消息。 执行对应于高通信负载的多个应用级场景。 在场景中捕获或截获的所有网络消息中,标识发往IED并由IED发送的响应的网络消息。 多个所识别的消息,多个特定通信协议元素或与特定于服务的属性相关的数据项以及指示SA事件的变化的协议元素的数量,数据项的值具有 被确定为与先前消息中的相同数据项的值相比改变。 基于服务特定处理时间模型的哪些参数值被计算,同样地确定所识别的消息的IED固有处理时间。