PoE Power Source Equipment Dynamic Allocation
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Solution Overview
Problem
In Power over Ethernet (PoE) systems, inefficient power allocation occurs due to mismatch between device classification and actual power consumption, leading to power outages and wasted resources, especially affecting devices with lower priorities.
Innovation Solution
A power source equipment with an inspection device and monitoring system that dynamically adjusts power allocation by sending detection signals, determining device classification, and continuously monitoring power consumption to adjust upper limit power values, ensuring efficient distribution of reserved power to newly added or lower-priority devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power source equipment allocates power based on device classification, then devices can obtain power quickly, but power allocation becomes inefficient when classification does not match actual power consumption
Solution Approach 1:
The power source equipment continuously monitors actual power consumption of powered devices and uses this feedback to dynamically adjust power allocation. The monitoring device tracks power consumption over time and compares it with allocated power, enabling the system to adapt to actual device needs rather than relying solely on initial classification.
Solution Approach 2:
The system transitions from static power allocation based on device classification to dynamic power allocation that adjusts in real-time according to actual power consumption. The upper limit power values are continuously modified based on monitored consumption patterns, allowing the system to be flexible and adaptive.
2Reliability
If power source equipment reserves power for high-class devices, then these devices can operate reliably, but newly added or lower-priority devices cannot obtain necessary power
Solution Approach 1:
The system dynamically adjusts power allocation when new devices are detected. The monitoring device identifies newly added powered devices and the power source equipment modifies upper limit power values to accommodate them, ensuring the system can adapt to changing network conditions and device additions.
Solution Approach 2:
The system changes the power allocation parameters (upper limit power values) based on actual consumption patterns and device priority. By adjusting these parameters dynamically, the system can ensure reliable operation for existing devices while making power available for new or lower-priority devices when appropriate.
3Productivity
If power source equipment continuously monitors power consumption, then power allocation can be optimized, but system complexity increases
Solution Approach 1:
The monitoring device serves multiple functions: it monitors power consumption, identifies newly added devices, tracks consumption over time, and provides data for power allocation decisions. This multi-functionality reduces the need for separate specialized components, managing system complexity while maintaining comprehensive monitoring capabilities.
Data Source
AI summary
A power source equipment for Power over Ethernet system provides an adjustment mechanism for the maximum allowable power of communication port connected to the power source, whereby when a device requests to join as a powered device but a maximum allowable power of a corresponding class is greater than the difference of the total supplied power and the sum of maximum allowable power designated to the then connected powered devices, the maximum allowable power of the respective powered devices may be adjusted, to generate sufficient allowable power for the requesting device. A power supplying method using the adjustment mechanism is also disclosed.