PoE Power Source Equipment Dynamic Allocation
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Solution Overview
Problem
In Power over Ethernet (PoE) systems, inefficient power allocation leads to repeated shutdowns of powered devices due to mismatch between classification power allocation and real power consumption, particularly affecting devices with lower priorities, resulting in power waste and unsupplied devices.
Innovation Solution
A power source equipment with inspection and monitoring devices dynamically adjusts power supply by sending inspection signals, determining device compliance and classification, and continuously monitoring power consumption to adjust upper limit power values based on trends, ensuring proper power allocation and preventing overconsumption or underallocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power source equipment allocates power based on device classification, then devices can obtain guaranteed minimum power, but power allocation becomes inefficient and devices with lower priorities experience repeated shutdowns
Solution Approach 1:
The patent implements dynamic power allocation by continuously monitoring actual power consumption of powered devices and adjusting the upper limit power values in real-time. The power source equipment transitions from static classification-based allocation to dynamic consumption-based allocation, allowing power distribution to adapt to changing device needs and improve overall system efficiency while maintaining reliability.
Solution Approach 2:
The patent employs feedback mechanisms where the power source equipment monitors actual power consumption of powered devices and uses this information to adjust power allocation. The system continuously receives consumption data, compares it with allocated power, and modifies upper limit values accordingly, creating a closed-loop control system that optimizes power distribution while preventing device shutdowns.
2Productivity
If power source equipment supplies power to all connected devices, then more devices can operate simultaneously, but total power consumption exceeds available power supply
Solution Approach 1:
The patent enables the power source equipment to dynamically adjust power allocation based on real-time consumption monitoring. By continuously updating upper limit power values according to actual device needs, the system can support more devices operating simultaneously without exceeding total power supply capacity, as power is distributed efficiently based on current demand rather than fixed classification.
Solution Approach 2:
The patent changes the power allocation parameter from fixed classification-based values to dynamic consumption-based values. The power source equipment modifies the upper limit power parameter for each device based on monitored consumption patterns, allowing optimal utilization of total power supply capacity while maximizing the number of simultaneously operating devices.
3Ease of manufacture
If power source equipment uses fixed classification power allocation, then power distribution is simple and deterministic, but it causes power waste when devices consume less than allocated power
Solution Approach 1:
The patent transitions from static to dynamic power allocation by implementing continuous monitoring of actual power consumption. The system automatically adjusts upper limit power values based on real-time consumption data, eliminating power waste while maintaining manageable complexity through automated control algorithms that simplify the allocation process.
Solution Approach 2:
The patent enables the power distribution system to self-adjust and optimize allocation without complex external intervention. The power source equipment autonomously monitors consumption, calculates optimal upper limit values, and implements adjustments, making the system self-regulating and eliminating power waste while keeping the allocation process simple through automated decision-making.
Data Source
AI summary
A power source equipment for Power over Ethernet system continues to inspect power consumption of all connecting ports, in order to adjust power allocation to the communication ports. When the power consumption of a particular connecting port shows a trend of increase, its power allocation is increased; otherwise, decreased. After a total power allocation is decreased, additionally available power may be generated and provided to an additional communication port. A method for adjusting the power allocation is also disclosed.