PoE Power Sourcing Equipment Dynamic Allocation
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Solution Overview
Problem
Current Power over Ethernet (PoE) technologies lack a safe, correct, and efficient power supply method to effectively manage power distribution between Power Sourcing Equipment (PSE) and Powered Devices (PD), leading to inefficiencies and potential safety issues.
Innovation Solution
A power supply method and system that calculates static and dynamic remaining power in PSE, determining the power supply mode based on the consuming power of PDs, allowing for real-time adjustment between static and dynamic power supply procedures to ensure safe and efficient power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional PoE power supply mode is used, then power can be transmitted from PSE to PD, but the power supply is not safe, correct or efficient
Solution Approach 1:
The patent implements dynamic power allocation by calculating remaining power in real-time and adjusting power distribution based on current power consumption conditions. The system transitions from static power allocation to dynamic power management, where the PSE continuously monitors power consumption and adjusts allocation to multiple PDs accordingly, ensuring safe and efficient power supply while adapting to changing conditions
Solution Approach 2:
The patent employs feedback mechanisms by calculating remaining power based on actual power consumption of PDs. The PSE receives power consumption information from PDs, computes remaining available power, and uses this feedback to make informed decisions about power allocation, ensuring that power distribution remains within safe limits while optimizing resource utilization
2Adaptability or versatility
If static power allocation is used, then power distribution is simple, but it cannot adapt to varying power consumption conditions
Solution Approach 1:
The system implements dynamic power allocation by continuously calculating remaining power and adjusting power distribution based on real-time consumption conditions. This allows the system to adapt to varying power needs of multiple PDs while maintaining efficient power utilization, transitioning from rigid static allocation to flexible dynamic management
3Adaptability or versatility
If power is supplied to multiple PDs simultaneously, then network flexibility improves, but power management becomes complex and inefficient
Solution Approach 1:
The patent segments the power management process into distinct calculation steps: determining total power consumption of all connected PDs, calculating remaining power by subtracting consumption from total available power, and using this segmented approach to manage multiple PDs efficiently. This breakdown simplifies the complexity of managing power to multiple devices simultaneously
Solution Approach 2:
The system uses feedback loops where each PD reports its power consumption to the PSE, which then recalculates remaining power and adjusts allocation accordingly. This continuous feedback mechanism enables efficient management of multiple PDs by ensuring that total power distribution remains within available limits while maximizing resource utilization
Data Source
AI summary
The present invention provides a power supply system and power supply method thereof for Power over Ethernet. The power supply system is configured to: calculate a static allocation remaining power and a dynamic allocation remaining power of power sourcing equipment; and determine whether a consuming power of powered device is greater than the static allocation remaining power and the dynamic allocation remaining power. When the consuming power is less than or equal to the static allocation remaining power and is less than or equal to the dynamic allocation remaining power, the powering system is configured to perform a static powering procedure. When the consuming power is greater than the static allocation remaining power and is less than or equal to the dynamic allocation remaining power, the powering system is configured to perform a dynamic powering procedure.