Bidirectional Inline Power Ports for Redundant Network Delivery

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Solution Overview

Problem

Existing wired data telecommunications networks often lack redundancy in power and data delivery, leading to potential equipment failures and service disruptions when power or data sourcing equipment fails.

Innovation Solution

A method and apparatus for bidirectional inline power ports that allow power to be received from remote power sourcing equipment via one conductor and power/data to be obtained from another port or device, with adjustable power levels based on circumstances, enabling a device to operate as both a powered device and power sourcing equipment depending on conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single power source and data source are used for network devices, then the network structure is simple, but the reliability of power and data delivery deteriorates when the source fails

Engineering Contradiction:
Improvereliability of power and data deliveryVSAvoidnetwork structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the power and data delivery system into multiple independent paths by implementing multiple ports (e.g., Port 1 and Port 2) that can each independently receive power and data from separate sources. This segmentation allows the system to failover between paths without affecting the entire network, resolving the contradiction between simplicity and reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically changes operational parameters by switching between different power sources and data sources based on availability and reliability conditions. The controller monitors system state and reconfigures power and data delivery paths in response to failures or changes, enabling the system to maintain reliability while adapting to varying network conditions.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of stationary object

If redundant power and data paths are implemented, then continuous operation during failures is achieved, but the device complexity increases

Engineering Contradiction:
Improvecontinuous operation durationVSAvoiddevice structure complexity
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The patent implements multi-functional ports that can operate in multiple modes - each port can serve as both a powered device receiver and a power source, and can handle both data and power delivery. This universality allows the system to achieve redundancy without proportionally increasing complexity, as existing components perform multiple functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically detects failures and reconfigures power and data paths without external intervention. The controller monitors the operational status of power and data sources, and autonomously switches between redundant paths when failures are detected, enabling continuous operation while minimizing manual configuration complexity.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If power levels are adjusted dynamically, then adaptability to changing conditions is improved, but the control complexity increases

Engineering Contradiction:
Improveadaptability to power delivery conditionsVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements feedback mechanisms where the controller continuously monitors power delivery conditions, device status, and network state. Based on this feedback, the system automatically adjusts power levels and switches between power sources, achieving adaptability through closed-loop control rather than complex predetermined logic.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts power delivery parameters in real-time based on changing conditions such as device power requirements, source availability, and network status. This dynamic adaptation allows the system to respond to varying conditions without requiring complex static configuration, as the control logic adapts to current system state.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS7620846B2Redundant power and data over a wired data telecommunications network
Publication Date: 2009.11.17 CISCO TECHNOLOGY INC
  • US7620846B2 patent drawing
  • US7620846B2 patent drawing
  • US7620846B2 patent drawing

AI summary

A method and apparatus for redundant power and data over a wired data telecommunications network permits power to be received at a local powered device (PD) from remote power sourcing equipment (PSE) via at least one conductor at a first time and power and/or data to be obtained by the local device from another port of the remote device or another remote device at a second different time. Power levels obtained may be adjusted from time to time in response to circumstances.