ANALYZING A COMMUNICATION PERFORMANCE OF AN IED
First Claim
1. A method of analyzing a communication performance of an Intelligent Electronic Device (IED) configured to process network messages transferred with a Substation Automation (SA) communication service, comprising, during each of a plurality of SA scenarios:
- identifying, by an analyzer, a number n1 of network messages related to the SA communication service and processed by the IED;
determining, by the analyzer, a number n2 of specific communication protocol elements within the number n1 of identified network messages;
determining, by the analyzer, a number n3 of elements with a changed data value within the number n2 of specific communication protocol elements;
determining, by the analyzer, a processing time tp of the identified network messages at the IED; and
calculating, by the analyzer, SA communication service-specific parameters k1, k2, k3 of a processing time model including the specific protocol element, based on the numbers n1, n2, n3 and the processing time tp for each of the plurality of SA scenarios.
6 Assignments
0 Petitions
Accused Products
Abstract
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.
-
Citations
14 Claims
-
1. A method of analyzing a communication performance of an Intelligent Electronic Device (IED) configured to process network messages transferred with a Substation Automation (SA) communication service, comprising, during each of a plurality of SA scenarios:
-
identifying, by an analyzer, a number n1 of network messages related to the SA communication service and processed by the IED; determining, by the analyzer, a number n2 of specific communication protocol elements within the number n1 of identified network messages; determining, by the analyzer, a number n3 of elements with a changed data value within the number n2 of specific communication protocol elements; determining, by the analyzer, a processing time tp of the identified network messages at the IED; and calculating, by the analyzer, SA communication service-specific parameters k1, k2, k3 of a processing time model including the specific protocol element, based on the numbers n1, n2, n3 and the processing time tp for each of the plurality of SA scenarios. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12)
-
-
6. An analyzing tool for analyzing a communication performance of an Intelligent Electronic Device (IED) configured to process network messages transferred with a Substation Automation SA communication service, wherein the analyzing tool comprises a control unit configured to, during each of a plurality of SA scenarios:
-
identify a number n1 of network messages related to the SA communication service and processed by the IED; determine a number n2 of specific communication protocol elements within the number n1 of identified network messages; determine a number n3 of elements with a changed data value within the number n2 of specific communication protocol elements; determine a processing time tp of the identified network messages at the IED; and calculate SA communication service-specific parameters k1, k2, k3 of a processing time model including the specific protocol element, based on the numbers n1, n2, n3 and the processing time tp for each of the plurality of SA scenarios. - View Dependent Claims (13)
-
-
14. A non-transitory computer-readable recording medium having a computer program recorded thereon that causes a computer to analyze a communication performance of an Intelligent Electronic Device (IED) configured to process network messages transferred with a Substation Automation (SA) communication service, the program causing the computer to perform operations comprising, during each of a plurality of SA scenarios:
-
identifying a number n1 of network messages related to the SA communication service and processed by the IED; determining a number n2 of specific communication protocol elements within the number n1 of identified network messages; determining a number n3 of elements with a changed data value within the number n2 of specific communication protocol elements; determining a processing time tp of the identified network messages at the IED; and calculating SA communication service-specific parameters k1, k2, k3 of a processing time model including the specific protocol element, based on the numbers n1, n2, n3 and the processing time tp for each of the plurality of SA scenarios.
-
Specification