American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author: Brian D. Green
Reviewed by: John Simmins
AMI Network (AMI Head-End to/from Smart Meter)
"Acknowledgment: This material is based upon work supported by the Department of Energy under Award Number DE-OE0000193." Disclaimer: "This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof."
Version History Rev. Date 1.6 2.0 3.3
4-6-2010 4-10-2010 4-22-2010
Author
Brian D. Green John Simmins Brian D. Green
Change description
Clean-Up Fill in blanks and narrative and description Add AEP comments and diagrams
Copyright © 2011 American Electric Power Company
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author: Brian D. Green
Reviewed by: John Simmins
Summary: Advanced Metering Infrastructure (AMI) is a transforming technology that has broad impact on the energy market and its consumers. AMI allows utilities to balance supply, demand, and capacity making a smarter, more efficient, grid by pushing aspects of grid monitoring and control out to the endpoints of delivery. Stakeholders are implementing the systems and technologies required to deploy AMI today. Advanced Metering Infrastructure (AMI) is a two-way communication system that can reach every device in the distribution space. The industry focus in embracing AMI as opposed to Automatic Meter Reading (AMR) is that the communication system is not dedicated to a single application. Instead, AMI is a flexible, general-purpose communication system that can be used for many applications – including meter reading, distribution automation, connect/disconnect, and others. AMI systems promise to provide advanced energy monitoring and recording, sophisticated tariff/rate program data collection, and load management command and control capabilities. Additionally, these powerful mechanisms will enable consumers to better manage their energy usage, and allowing the grid to be run more efficiently from both a cost and energy delivery perspective. These advanced capabilities will also allow utilities to provision and configure the advanced meters in the field, offering new rate programs, and energy monitoring and control. Narrative: This Use Case handles the transfer of any data element from the AMI Head-End to the Smart Meter. It is intended to be an intermediary Use Case, called and reused by many other Use Cases, The Use Case provides for scenarios such as meter to meter, relay to meter, and relay to relay to meter communications paths. It hides the complexity of the Access Point sending messages directly to a Smart Meter NIC and to a Smart Meter through a combination of Relays and Smart Meters.
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Copyright © 2011 American Electric Power Company
Rev. 4
Document ID: Use case # 5.1
4.5 Advanced Metering Infrastructure
American Electric Power
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author:
Reviewed by:
Brian D. Green
John Simmins
Interface Diagram:
Operations 1
AMI-Head End AMI Head-End
DR Application
39 50
Distribution 51
Access Point
Relay
53
Relay
52
NIC
54
54
54
54
55
NIC
NIC
56
56
56
Smart Meter Smart Meter
Smart Meter
56
55
NIC
3 Smart Meter
Smart Meter
Customer Customer
Note(s): The NIC is part of the Smart Meter. The interface between the AMI Head-End and the Access Point includes: LAN, Firewall/DMZ, Backhaul Router, Backhaul Network, Backhaul Gateway. Message relaying / routing may occur amongst various combinations of Access Point, Relays and NICs.
Page 3 of 12
Copyright © 2011 American Electric Power Company
Rev. 4
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author: Brian D. Green
Reviewed by: John Simmins
Actor(s): The list of the actors and the roles that are participating in this use case described in the table below. Name
Role description
Access Point AMI Head-End Backhaul Gateway Backhaul Network
Backhaul Router Firewall/DMZ NIC Relay
The Access Point is a sub-system within the AMI system that performs high volume data collection/aggregation and transport capabilities. The AMI Head-End is the back office system than controls the Advanced Metering Infrastructure. The communication device between the Access Point and the Backhaul Network The high capacity line from a wireless mesh network to the LAN. The backhaul side of the device relays the traffic from router to router wireless until it reaches a gateway that connects to the Internet or other private network via a wired or wireless connection. The access point in the mesh router communicates with the mobile users in the area. A piece of computer software or hardware intended to prevent unauthorized access to system software or data AMI side of the network interface card within the Smart Meter. A sub-system of the AMI system that typically relays/routes the data using radio signals between the meters and the access points.
Participating Business Functions: The participating business function, its acronym and what they provide in this use case are detailed in the table below. Acronym
Business Function/Abstract Component
Services or Information Provided
Assumptions / Design Considerations: •
Standard International Electrotechnical Commission (IEC) 61968 Message Definition format will be followed to provide the Header, Request, Reply, and payload used when defining the messages for the design specifications. For the purpose of the use cases identified in this document these have been omitted as they are to be provided in the design specification for the AMI Network use case. Page 4 of 12
Copyright © 2011 American Electric Power Company
Rev. 4
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author:
Reviewed by:
Brian D. Green
John Simmins
Normal Sequence: The sequences of events, showing the order in which they ocurr during the typical progression of this use case are provided in the table below. The Sequence Diagram that graphically depicts the events is presented immediately following the table. S1: AMI Head-End to Smart Meter. Use Case Step
1.1
Triggering Event
Data needs to be sent from AMI Head-End to Smart Meter
Description Of Process
Information To Be Exchanged
Producer
Receiver
AMI Head-End sends Data Elements to the LAN
Data Elements that need to be sent to the Smart Meter
AMI HeadEnd
LAN
1.2
LAN sends Data Elements to the Firewall/DMZ
LAN
Firewall/ DMZ
1.3
Firewall/DMZ sends Data Elements to the Backhaul Router
Firewall/ DMZ
Backhaul Router
1.4
Backhaul Router sends Data Elements to the Backhaul Network
Backhaul Router
Backhaul Network
1.5
Backhaul Network sends Data Elements to the Backhaul Gateway
Backhaul Network
Backhaul Gateway
1.6
Backhaul Gateway sends Data Elements to the Access Point
Backhaul Gateway
Access Point
1.7A. 1
Access Point sends Data Elements to NIC
Access Point
NIC
1.7B. 1
Access Point sends Data Elements to Relay
Data Elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter
Access Point
Relay
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Copyright © 2011 American Electric Power Company
Message Type or Additional Notes
Rev. 4
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi Use Case Step
Triggering Event
Author: Brian D. Green
Description Of Process
1.7B. 2
Relay sends Data Elements to Relay
1.7B. 3
Relay sends Data Elements to NIC
1.7C. 1
Access Point sends Data Elements to NIC
1.7.C .2
NIC sends Data Elements to NIC
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Reviewed by:
Information To Be Exchanged
Data elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter Data elements that need to be sent to the Smart Meter
John Simmins Producer
Receiver
Relay
Relay
Relay
NIC
Access Point
NIC
NIC
NIC
Copyright © 2011 American Electric Power Company
Message Type or Additional Notes
As needed
As needed
Rev. 4
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author: Brian D. Green
Reviewed by: John Simmins
AMI Network Scenario 1 Sequence Diagram
Page 7 of 12
Copyright © 2011 American Electric Power Company
Rev. 4
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author:
Reviewed by:
Brian D. Green
John Simmins
S2: Smart Meter to AMI Head-End. Use Case Step
Triggering Event
Description Of Process
2.1A. 1
Elements of AMI System deliver data elements that need to be sent to the AMI Head-End
NIC sends Data Elements to the Access Point
Data Elements that need to be sent to the AMI Head
NIC
Access Point
2.1B. 1
NIC sends Data Elements to the NIC
NIC
NIC
As necessary
2.1B. 2
NIC sends Data Elements to the Relay
NIC
Relay
As necessary
2.1B. 3
Relay sends Data Elements to the Access Point
Relay
Access Point
2.1C. 1
NIC sends Data Elements to the Relay
NIC
Relay
2.1`C .2
Relay sends Data Elements to another Relay
Relay
Relay
2.1C. 3
Relay sends Data Elements to the Access Point
Relay
Access Point
2.2
Access Point sends Data Elements to the Backhaul Gateway
Access Point
Backhaul Gateway
2.3
Backhaul Gateway sends Data Elements to the Backhaul Network
Data Elements that need to be sent to the AMI Head Data Elements that need to be sent to the AMI Head Data Elements that need to be sent to the AMI Head Data Elements that need to be sent to the AMI Head Data Elements that need to be sent to the AMI Head Data Elements that need to be sent to the AMI Head Data Elements that need to be sent to the AMI Head Data Elements that need to be sent to the AMI Head
Backhaul Gateway
Backhaul Network
Page 8 of 12
Information To Be Exchanged
Producer
Receiver
Copyright © 2011 American Electric Power Company
Message Type or Additional Notes
As necessary
Rev. 4
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi Use Case Step
Triggering Event
Author: Brian D. Green
Description Of Process
2.4
Backhaul Network sends Data Elements to the Backhaul Router
2.5
Backhaul Router sends Data Elements to the Firewall/DMZ
2.6
Firewall/DMZ sends Data Elements to the LAN
2.7
LAN sends Data Elements to the AMI Head-End
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Reviewed by: John Simmins
Information To Be Exchanged
Producer
Receiver
Data Elements that need to be sent to the AMI Head Data Elements that need to be sent to the AMI Head-End Data Elements that need to be sent to the AMI Head-End Data Elements that need to be sent to the AMI Head-End
Backhaul Network
Backhaul Router
Backhaul Router
Firewall/ DMZ
Firewall/ DMZ
LAN
LAN
AMI HeadEnd
Copyright © 2011 American Electric Power Company
Message Type or Additional Notes
Rev. 4
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author: Brian D. Green
Reviewed by: John Simmins
AMI Network Scenario 2 Sequence Diagram Page 10 of 12
Copyright © 2011 American Electric Power Company
Rev. 4
American Electric Power
4.5 Advanced Metering Infrastructure
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert:
Author:
Robert Sarfi
Brian D. Green
Reviewed by: John Simmins
Integration Scenarios Adapters will use the Common Information Model (CIM) in Extensible Markup Language (XML) to send and receive messages and events. The following are the points of integration that must be tested for this use case. Other non-CIM message interfaces may be testable in this use case. Actor
Interface Points
Access Point AMI Head-End Backhaul Gateway Backhaul Network Backhaul Router Firewall/DMZ LAN Relay
• • • • • • • •
Relay LAN Access Point Backhaul Gateway Backhaul Network Backhaul Router Firewall/DMZ NIC
Pre-conditions: The following conditions that MUST be met before this use case can occur. •
All elements of the AMI Network are proprietary in nature and are part of a whole; thus cannot work in isolation of each other.
•
Telecomm links are required between AMI Network elements and these links are implemented differently depending on geography, availability, coverage and throughput (private, public, landline, wireless).
Post-conditions: None The following events or actions that may happen after or be caused by the completion of the normal use case events, as well as the exceptions or alternative sequences are:
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Copyright © 2011 American Electric Power Company
Rev. 4
4.5 Advanced Metering Infrastructure
American Electric Power
Document ID: Use case # 5.1
Title: AMI Network (AMI Head-End to/from Smart) Subject Matter Expert: Robert Sarfi
Author: Brian D. Green
Reviewed by: John Simmins
Exceptions / Alternate Sequences: There are no exceptions, unusual events or alternate sequences defined for this use case. Use Case Step
Triggering Event
Description Of Process
Information To Be Exchanged
Producer
Receiver
Message Type
Message Type(s) Diagram: An XML Schema Definition (XSD) diagram shows the normative and informative parts of the message. Not all of the International Electrotechnical Commission’s (IEC) – CIM message optional elements must or will be used in the use of IEC – CIM for this specific use case.
References: Use Cases or other documentation referenced by this use case include:.
Issues: None ID
Description
Status
Miscellaneous Notes: None
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Copyright © 2011 American Electric Power Company
Rev. 4
