PoE Switch Port Power Control via User Presence Detection

The patent implements dynamic power management by enabling the network switch to dynamically enable or disable switch ports based on detected user presence. When a user is detected via probe packets to wireless access points, the switch port is enabled and power is supplied. When no user is detected after a threshold period, the port is disabled and power is cut off. This dynamic adaptation resolves the contradiction between maintaining device readiness and reducing energy waste.

The system employs feedback mechanisms through probe packets that continuously monitor user presence in the network environment. The network switch receives feedback about whether users are present in the vicinity, and based on this feedback, automatically adjusts power supply to connected devices. This feedback loop enables the system to maintain readiness when needed while conserving energy when users are absent.

The patent leverages existing multi-functional network infrastructure components to implement power management without adding significant complexity. The network switch, which already performs data forwarding and management functions, is extended to also handle user presence detection and power control. The wireless access points, already providing wireless connectivity, simultaneously serve as presence detection nodes. This universal use of existing components minimizes additional system complexity while achieving energy efficiency.

The system implements self-service power management where the network infrastructure automatically monitors itself and connected devices for user presence, and autonomously makes power supply decisions without requiring external management systems or complex centralized control. Each network switch independently manages power for its connected devices based on local presence detection, reducing overall system complexity.