Power Port Mapping via Load Adjustment Feedback
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Solution Overview
Problem
The inconvenience of locally deploying a power supply on a powered device, such as routers and cameras, which requires a separate power supply to function, complicates the deployment process.
Innovation Solution
A connection manner identification method where power sourcing equipment sends load adjustment indications to powered devices via data ports, allowing the equipment to determine the correct data and power supply ports connected to each device by measuring output power changes, enabling remote and efficient identification of connection manners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a power supply is locally deployed on each powered device, then each device can be powered independently, but the deployment process becomes complicated and inconvenient
Solution Approach 1:
The patent combines the power supply function with a centralized power sourcing equipment instead of having separate local power supplies for each powered device. This merging approach maintains the reliability of independent power supply capability while simplifying deployment, as the centralized power equipment can manage multiple devices through a unified system that identifies connections via load adjustment indications and output power changes.
2Ease of operation
If a centralized power supply system is used to simplify deployment, then deployment becomes convenient, but it becomes difficult to identify which data port and power supply port are connected to the same powered device
Solution Approach 1:
The patent implements a feedback mechanism where the power sourcing equipment sends load adjustment indications to powered devices and then detects the resulting output power changes. This feedback loop enables accurate identification of connected data and power supply ports, as the system can match ports based on the correlation between sent indications and received power change responses, thus resolving the connection identification difficulty while maintaining deployment convenience.
Solution Approach 2:
The powered devices actively participate in the identification process by responding to load adjustment indications with measurable output power changes. This self-service approach allows the system to automatically identify connections without requiring manual intervention or complex external detection equipment, maintaining both convenience and accuracy.
3Measurement precision
If manual connection identification methods are used, then connection accuracy can be ensured, but the identification process becomes time-consuming and inefficient
Solution Approach 1:
The patent replaces manual mechanical connection identification methods with an automated electrical detection system. The power sourcing equipment automatically sends load adjustment indications and measures output power changes to identify connections, eliminating the need for manual tracing or testing. This substitution maintains high identification accuracy through precise power measurements while dramatically improving efficiency by automating the entire identification process.
Solution Approach 2:
The patent introduces load adjustment indications as an intermediary mechanism to facilitate connection identification. These indications serve as a mediator between the power sourcing equipment and powered devices, enabling automated detection of connections through the resulting output power changes. This intermediary approach allows for both high accuracy and efficiency by creating a standardized, measurable interaction protocol.
Data Source
AI summary
A connection manner identification method includes power sourcing equipment separately sending load adjustment indications to powered devices by using data ports, where each load adjustment indication in the load adjustment indications indicates a corresponding powered device to adjust a load. The powered devices are separately connected to power supply ports of the power sourcing equipment by using power supply cables, and the powered devices are separately connected to the data ports of the power sourcing equipment by using data cables. The power sourcing equipment obtains output power changes of the power supply ports caused by load adjustment of the powered devices, and the power sourcing equipment determines, based on the output power changes, a first data port and a power supply port that are connected to a same powered device in the powered devices.