Mobile Power Profile for PoE Device Mobility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional Power over Ethernet (PoE) systems face challenges in seamlessly moving end devices between ports while maintaining uninterrupted power, requiring detailed network topology knowledge, UPS capacity validation, device authentication, and manual power parameter conveyance, which limits flexibility and increases administrative costs.
Innovation Solution
Implementing a 'mobile' power profile that includes power requirements information and authentication mechanisms, allowing Power Sourcing Equipment (PSE) to dynamically provision power based on learned device profiles, enabling seamless device mobility and optimized UPS usage through automated communication of power profile information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional PoE systems use manual power parameter conveyance and detailed network topology knowledge, then power provisioning can be controlled, but device mobility is limited and administrative costs increase
Solution Approach 1:
The system enables self-service by allowing devices to automatically convey their power profiles to PSEs through standardized protocols (802.3ah, 802.1p) without requiring manual configuration or detailed network topology knowledge. The device autonomously provides power requirements information, and the PSE automatically provisions power based on this information, eliminating the need for complex manual setup and maintaining mobility.
2Reliability
If detailed network topology knowledge is required for power provisioning, then power can be accurately allocated, but ease of operation decreases
Solution Approach 1:
The system performs preliminary action by having devices pre-configure their power profiles with power requirements information before movement. When a device connects to a PSE, it simply needs to be recognized via standardized protocols, and the PSE automatically retrieves the pre-stored power profile and applies the appropriate power allocation without requiring real-time topology analysis or manual intervention.
3Reliability
If manual power parameter conveyance is used, then power parameters can be controlled, but productivity decreases due to administrative burdens
Solution Approach 1:
The system implements feedback mechanisms where devices automatically transmit their power profile information to PSEs upon connection. The PSE receives this feedback, validates the power requirements, and automatically configures power provisioning accordingly. This automated feedback loop eliminates manual parameter conveyance and administrative reconfiguration tasks, significantly improving productivity while maintaining reliable power parameter control.
Data Source
AI summary
A controller in PSE (Power Sourcing Equipment) controls how to provision uninterruptible power through corresponding data ports (and cables) of the PSE to network devices. For example, the controller receives power profile information associated with the network devices indicating how to provision power to the network devices during a power failure such as when an uninterruptible power supply providing power to the power sourcing equipment runs on a battery rather than failed primary wall power. In response to detecting a power failure condition, the power sourcing equipment provisions power to the network devices based on the power profile information associated with the network devices. Consequently, the PSE can smartly provision power to more critical network devices while in a power failure mode rather than provision power to the network devices in the same way before and after occurrence of the power failure mode.