SIP-Based Smart Grid Event Management System
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Solution Overview
Problem
Current smart grid systems lack efficient methods for managing electricity consumption and distribution, particularly in integrating consumer control and environmental sustainability, with existing technologies failing to effectively utilize real-time data from smart meters for optimized energy management.
Innovation Solution
A system and method utilizing Session Initiation Protocol (SIP) for communication between smart meters and client devices, enabling the transmission of monitored states and rules for managing electrical devices, allowing consumers and utilities to make informed decisions on energy usage and control, with a presence server facilitating event management and subscription to updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If real-time monitoring and communication of electrical device states is implemented using SIP protocols, then energy management efficiency and consumer control capability are improved, but system complexity and infrastructure requirements increase
Solution Approach 1:
The system segments the smart grid communication infrastructure into distinct functional modules: presence servers for event subscription management, domain servers for rule processing, and endpoint devices (smart meters, client devices) for data collection and actuation. This modular segmentation allows each component to perform specialized functions, improving overall energy management efficiency while keeping individual component complexity manageable.
Solution Approach 2:
The patent introduces presence servers and domain servers as intermediary components between smart meters and client devices. These intermediaries handle SIP message routing, event subscription management, and rule processing, thereby reducing the communication burden on endpoint devices and simplifying the overall system architecture while enabling efficient real-time energy management.
2Reliability
If real-time data transmission and event notification systems are deployed, then responsiveness to critical electrical events is improved, but communication infrastructure demands and operational costs increase
Solution Approach 1:
The system implements event-driven periodic communication where SIP notify messages are transmitted only when state changes occur or when subscription events are triggered, rather than continuous polling. This approach maintains high responsiveness to critical electrical events while significantly reducing communication infrastructure demands and energy consumption compared to continuous monitoring approaches.
Solution Approach 2:
Client devices and smart meters autonomously subscribe to relevant events and receive targeted notifications without requiring constant server-initiated communications. The presence server automatically manages subscription states and routes notifications only to subscribed endpoints, reducing overall communication overhead while ensuring reliable event response.
3Productivity
If comprehensive rule processing and automated action execution are implemented, then energy optimization and cost reduction are improved, but system control complexity increases
Solution Approach 1:
The system employs domain servers to pre-process and evaluate rules against incoming SIP notify messages before executing actions. Rules are defined in advance with specific conditions and corresponding actions, allowing the system to automatically optimize energy consumption without requiring complex real-time decision-making logic at each endpoint device. This preliminary rule processing simplifies control complexity while maintaining high energy optimization capability.
4Adaptability or versatility
If SIP-based communication protocols are adopted for smart meter data exchange, then interoperability and scalability are improved, but implementation complexity and security requirements increase
Solution Approach 1:
The patent adopts SIP (Session Initiation Protocol) as a universal communication standard for all data exchange between smart meters, presence servers, domain servers, and client devices. SIP's multi-functionality enables a single protocol to handle event subscription, state notification, and rule execution across diverse devices and platforms, significantly improving interoperability and scalability while reducing the need for device-specific communication implementations.
Data Source
AI summary
A system and a method are provided for managing events in a smart grid. The method is implemented in a computer infrastructure having computer executable code tangibly embodied on a computer readable storage medium having programming instructions operable to: receive a Session Initiation Protocol (SIP) notify message comprising a monitored state of at least one electrical device, from a smart meter; send a SIP publish message comprising the monitored state of the at least one electrical device, to at least one client device for management of the at least one electrical device; and determine and send a rule comprising at least one action to take in response to the monitored state of the at least one electrical device, to the smart meter.