Redundant Headend Group for Powerline Communication Reliability
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Solution Overview
Problem
Existing powerline communication systems face challenges in maintaining communication reliability and cost-effectiveness due to the risk of failures in headend or repeater components, leading to communication downtimes and increased costs in implementing redundancy solutions.
Innovation Solution
A headend group comprising a first headend and a redundant headend, each with powerline and network interfaces, where the redundant headend monitors the communication capability of the first headend and takes over management of the powerline cell if a failure is detected, ensuring seamless communication without the need for extensive additional infrastructure or special repeater nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a power line ring is set up with redundancy, then communication reliability is improved, but costs increase due to the need to equip the entire ring with power line components
Solution Approach 1:
The patent segments the redundancy mechanism by introducing a separate standby headend that is not integrated into the main power line ring infrastructure. This standby headend operates independently and only activates when needed, avoiding the requirement to equip the entire ring with redundant components while still providing communication reliability.
Solution Approach 2:
The patent creates a copy of the headend function in the form of a standby headend that replicates the necessary communication capabilities. This copy is maintained in a ready state but does not require physical deployment throughout the entire power line ring, thus reducing infrastructure complexity while maintaining reliability.
2Reliability
If redundant headend is added to monitor and take over management, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The standby headend is pre-configured and pre-positioned with all necessary management capabilities before a failure occurs. When the primary headend fails, the standby headend can immediately take over management functions without requiring complex real-time configuration or reconfiguration of the power line cell, thus reducing the complexity burden during failure scenarios.
Solution Approach 2:
The standby headend autonomously monitors the primary headend's communication capability and automatically takes over management when failure is detected, without requiring manual intervention or complex coordination protocols. This self-service mechanism simplifies the overall system complexity by eliminating the need for complex failover coordination protocols.
3Reliability
If extensive additional infrastructure is deployed for redundancy, then communication reliability is improved, but costs increase
Solution Approach 1:
The patent extracts the redundancy function from the main power line ring infrastructure by placing the standby headend as a separate, independent component. This extraction allows redundancy to be provided without requiring additional infrastructure throughout the ring, significantly reducing implementation costs while maintaining communication reliability.
Solution Approach 2:
The standby headend is designed with multi-functionality, serving both as a monitoring component and as a backup management system. This universal design eliminates the need for separate dedicated redundancy infrastructure, reducing overall implementation costs while providing reliable communication backup.
Data Source
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AI summary
A headend group (6, 6') comprising a first headend (HE1a, HE2a) and a redundant headend (HE1b, HE2b) is disclosed, wherein the first headend (HE1a, HE2a) and the redundant headend (HE1b, HE2b) each have a powerline interface and a network interface. The powerline interfaces are configured for exchanging powerline signals over a power supply network. The network interfaces are configured for exchanging data packets over a network. The first headend (HE1a, HE2a) is configured to manage a powerline cell formed in the power supply network. The redundant headend (HE1b, HE2b) is configured to detect a failure of communication capability in the first headend (HE1a, HE2a) using its powerline interface and/or its network interface, and upon detection of such a failure, to take over management of the powerline cell.A powerline system (1) comprises at least one headend group (6, 6') and is designed for use with a power supply network, in particular a medium-voltage network. The powerline system (1) comprises several powerline links (2, 2'), each of which is configured on sections of the power supply network and each connects at least two node stations (3, 3', 3") within the power supply network to each other via powerline communication. At least one of the powerline links (2, 2') comprises a headend group (6, 6') and at least one repeater (RP1a, RP2a, RP1b, RP2b) located remotely from the headend group (6, 6'), with the at least one repeater (RP1a, RP2a, RP1b, RP2b) registering with the headend group (6, 6').