Network Power Sourcing System Dynamic Grading
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Solution Overview
Problem
Conventional power consumption grading methods in network-based power supply systems are inefficient, leading to power waste and line loss, as they do not consider the specific power requirements of terminal devices or dynamic line losses.
Innovation Solution
A method where the powered device starts multiple power modules one by one in a specific order until all are started or power overload protection is triggered, allowing for fine-grained power consumption grading and precise power matching based on the detected power module combination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power consumption grading is performed based on hardware grading table with discrete power points, then power allocation can be performed, but precise matching cannot be implemented leading to power waste
Solution Approach 1:
The patent changes the parameter of power consumption detection from discrete hardware grading points to continuous detection based on voltage and current signals. The powered device detects voltage and current in real-time to calculate actual power consumption, enabling precise matching of power allocation to actual needs rather than forcing devices into discrete power levels.
Solution Approach 2:
The patent implements feedback by having the powered device detect voltage and current signals, calculate actual power consumption, and communicate this information back to the power supply end. This feedback loop enables dynamic adjustment of power allocation based on real-time power consumption levels, preventing both power waste and insufficient power supply.
2Ease of operation
If fixed power levels are allocated based on hardware grading, then power allocation is simplified, but dynamic line losses are not considered leading to inefficiency
Solution Approach 1:
The patent makes the power allocation system dynamic by enabling real-time detection of voltage and current signals to calculate actual power consumption. Instead of static hardware-based grading, the system continuously monitors and adjusts power allocation based on dynamic conditions including line losses, ensuring optimal power distribution while maintaining ease of operation through automated detection.
3Device complexity
If power consumption grading does not consider specific terminal device status, then grading operation is simplified, but precise matching for specific cases cannot be implemented
Solution Approach 1:
The patent enables self-service by allowing the powered device to autonomously detect its own power consumption status through voltage and current detection, calculate its actual power needs, and communicate this information to the power supply end. This eliminates the need for complex external grading operations while achieving precise power matching, as each device determines its own power requirements.
4Reliability
If conventional power grading methods are used, then power allocation can be performed, but power overload protection cannot be effectively detected
Solution Approach 1:
The patent implements feedback by having the powered device detect voltage and current signals to calculate actual power consumption and communicate this information back to the power supply end. This feedback mechanism enables the power supply end to effectively detect power overload conditions and trigger protection mechanisms, preventing system failures while maintaining reliable operation.
Data Source
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AI summary
This application relates to a power consumption grading method for a network-based power supply system. The method includes: when it is detected that power overload protection is not triggered, starting a plurality of power modules of a powered device one by one in a specific order until all the plurality of power modules are started or it is detected that the power overload protection is triggered after a specific power module is started; when it is detected that the power overload protection is triggered, selecting, according to the specific order and based on the specific power module, one or more of the plurality of power modules as a power module combination of the powered device; and determining a load power of the powered device and a corresponding power consumption level based on the power module combination.