PoE Switch User Authentication Power Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional Power-over-Ethernet (PoE) network equipment lacks user-focused power distribution control, unable to approve, deny, or account for power provided to different users, leading to inefficiencies in power management.
Innovation Solution
A PoE switch with a controller that uses network authentication protocols to selectively control power distribution among PoE output ports based on user authentication information, allowing for different power levels to be supplied to devices based on authentication and power requirements, and includes features for accounting and prioritization of power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power is supplied to connected devices without control, then devices can operate continuously, but power management efficiency deteriorates and unnecessary power consumption increases
Solution Approach 1:
The system performs authentication and authorization actions before supplying power to devices. The controller authenticates devices using network authentication protocols and pre-determines power allocation based on user credentials and device requirements, ensuring power is only supplied to authorized devices with specific power needs.
Solution Approach 2:
The power supply system dynamically adjusts power allocation based on real-time authentication status and device requirements. The controller can modify power levels, enable or disable power supply, and reallocate power resources dynamically in response to changing network conditions and user needs.
2Adaptability or versatility
If uniform power distribution is provided to all devices, then simplicity is maintained, but user-specific power allocation capability is lost
Solution Approach 1:
The controller integrates multiple functions including network authentication, user identification, power authorization, and power distribution control into a single device. This universal approach allows the system to handle both simple and complex power allocation scenarios through one integrated component, adding adaptability without proportionally increasing overall system complexity.
Solution Approach 2:
The controller acts as an intermediary between the power supply and connected devices, mediating power distribution based on authentication results. It translates user credentials and device requirements into appropriate power allocation decisions, shielding the complexity of power management from both the power supply and end devices.
3Ease of operation
If power supply control is added to PoE equipment, then power management efficiency improves, but device complexity increases
Solution Approach 1:
The system enables devices to self-authenticate and self-describe their power requirements through standard network authentication protocols and Power_via_Ethernet Plus (PvE+) technology. Devices automatically provide their power needs information, and the controller autonomously makes authorization decisions based on user credentials, reducing the need for manual configuration and simplifying operation.
Solution Approach 2:
The system implements feedback mechanisms where devices communicate their power requirements and status to the controller, which then adjusts power allocation accordingly. The controller monitors power consumption and device status in real-time, providing feedback loops that enable automatic power optimization and simplified user management.
Data Source
AI summary
A Power-over-Ethernet (PoE) switch selectively controls the supply of power to the PoE output ports on a user-specific basis, based on a network port authentication protocol. The PoE switch includes an accounting information unit storing power usage information on a per-user basis. The PoE switch uses a protocol such as the 802.1x network port authentication protocol.