Power Over Ethernet Access Point Dynamic Power Class Detection
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Solution Overview
Problem
Advanced access points (APs) require more power than standard 802.3af Power over Ethernet (POE) supplies can provide, leading to insufficient power for activating all capabilities, and there is a need for APs to dynamically adjust power levels based on their specific requirements.
Innovation Solution
The APs operate at a first power setting, increase their power requirement, detect a second power setting from the power source, determine if resources are operable at this new setting, and adjust their operation accordingly, activating an alert if resources are not operable, using a processor to test and adjust power classes and trigger alerts for insufficient power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard 802.3af POE power supply is used, then device compatibility and ease of deployment are improved, but power availability for advanced capabilities deteriorates
Solution Approach 1:
The access point dynamically adjusts its power consumption based on available power levels. The system tests different power classes (15.4W, 30W, 60W, 120W) and operates at the highest level supported by the POE infrastructure, allowing advanced capabilities to be activated when sufficient power is available while maintaining compatibility with standard 802.3af supplies.
Solution Approach 2:
The patent changes the power consumption parameter of the access point by testing multiple power classes and selecting the appropriate operating level. This allows the same device to adapt its power requirements based on what the POE infrastructure can provide, resolving the contradiction between fixed power supply standards and variable power needs for advanced features.
2Adaptability or versatility
If advanced access point capabilities are activated, then functionality and performance are improved, but power consumption increases beyond standard POE supply capacity
Solution Approach 1:
The access point dynamically determines which capabilities to activate based on the detected power class. The system tests available power levels and selectively enables features such as wireless radio, Ethernet ports, and advanced functions only when sufficient power is available, thereby maintaining high functionality while adapting power consumption to infrastructure capacity.
Solution Approach 2:
The patent segments the access point's capabilities into different power class levels. By dividing functionality across multiple power tiers (15.4W, 30W, 60W, 120W), the system allows advanced features to be activated in discrete steps as power availability increases, resolving the contradiction between wanting all capabilities and the power consumption required to support them.
3Measurement precision
If power class testing is performed to determine available power, then power level detection accuracy is improved, but device initialization time increases
Solution Approach 1:
The access point performs power class testing as a preliminary action during the initialization phase, before full operation begins. By detecting the available power level early in the boot process, the system can configure appropriate capabilities from the start, ensuring accurate power level detection while minimizing the time penalty to only the initialization period rather than continuous operation.
Data Source
AI summary
The present invention relates generally to methods and systems for determining a class of power delivered via power sourcing equipment (“PSE”) utilizing power over Ethernet (“POE”) technology. Described is a method including operating an network device at a first power setting, increasing a power requirement of the network device, detecting a second power setting based on an amount of power available from a power source, the second power setting being greater than the first power setting, determining whether one or more resources of the network device is operable at the second power setting, operating the network device at the second power setting if the one or more resources is operable, and activating an alert if the one or more resources is not operable. Further described is a system including a network device operating at a first power setting, the network device increases a power requirement, a power source providing an amount of power to the network device at a second power setting, the second power setting being greater than the first power setting, and a server determining whether one or more resources of the network device is operable at the second power setting, wherein the network device operates the at the second power setting if the one or more resources is operable, and the network device activates an alert if the one or more resources is not operable.