AMI Communication Device Routing Multiple Protocols

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Solution Overview

Problem

The high cost and complexity of installing a high-speed communication network for connecting distribution automation equipment to a wide area network (WAN) in Advanced Metering Infrastructure (AMI) systems, due to the need for multiple protocol implementations and frequent updates, make it economically prohibitive.

Innovation Solution

A communication device that receives data packets and routes them between an AMI system and a Utility Automation (UA) system using separate output ports, with a processor configured to forward packets formatted according to the AMI protocol to the AMI system and packets not formatted accordingly to the UA system, eliminating the need for the routing device to understand the UA protocol.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple communication protocols are implemented on a single option board to enable WAN sharing between AMI and DA equipment, then the WAN connection sharing capability is improved, but the device complexity and cost increase

Engineering Contradiction:
ImproveWAN connection sharing capabilityVSAvoidoption board complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system is divided into two separate functional components: an AMI option board that handles only AMI protocol communications, and a Distribution Automation (DA) device that handles UA protocol communications. This segmentation eliminates the need for a single option board to support multiple protocols, thereby reducing device complexity and cost while maintaining WAN connection sharing capability through the common GPRS modem resource.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a single option board implements multiple protocols for WAN sharing, then resource utilization is improved, but the ease of manufacture and deployment deteriorates

Engineering Contradiction:
Improveresource utilizationVSAvoiddeployment simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The architecture separates the AMI option board from the DA device, creating independent, standardized components that are easier to manufacture and deploy. The GPRS modem resource is shared through a common wireless network interface rather than being integrated into a complex multi-protocol board, simplifying the manufacturing and deployment process while maintaining efficient resource utilization.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If the option board must support multiple protocols including future SCADA protocol updates, then future adaptability is improved, but the ease of repair and maintenance deteriorates

Engineering Contradiction:
Improveprotocol update compatibilityVSAvoidoption board maintenance
Core Design Contradiction:
Adaptability or versatilityVSEase of repair

Solution Approach 1:

By separating the AMI option board from the DA device, protocol updates for SCADA or other UA protocols can be applied independently to the DA device without affecting the AMI option board. This segmentation improves ease of repair and maintenance, as each component can be updated, replaced, or repaired independently based on its specific protocol requirements.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If a more powerful microprocessor is used to handle multiple protocols on the option board, then processing capability is improved, but the cost increases

Engineering Contradiction:
Improvemulti-protocol processing capabilityVSAvoidcost
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The system divides processing responsibilities between two devices: the AMI option board uses a standard microprocessor optimized for AMI protocols, while the DA device uses a separate microprocessor optimized for UA/SCADA protocols. This segmentation eliminates the need for an expensive, high-power microprocessor in the option board, reducing cost while maintaining the necessary processing capabilities for both protocol types through the distributed architecture.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8477794B2Multiple communications protocol routing in advanced metering infrastructure context
Publication Date: 2013.07.02 ELSTER ELECTRICITY LLC
  • US8477794B2 patent drawing
  • US8477794B2 patent drawing
  • US8477794B2 patent drawing

AI summary

Techniques for using an Advanced Metering Infrastructure (AMI) system for Utility Automation (UA) purposes in a utility distribution system are disclosed herein. In an AMI system, a metering node often includes a communications option board for connecting to a wide area network (WAN), which can be shared between the AMI system and a UA system. The metering node may be near other devices that can be controlled by a utility company to monitor and control components of the utility distribution system. A data packet is received in a communication device. The communication device determines whether the received data packet is formatted according to a first protocol employed by the AMI system. If so, then the data packet is forwarded to a first device in communication with the AMI system. If not, then the data packet is forwarded to a second device in communication with the UA system.