Device and method for collecting energy consumption in a poe system

Abstract

The invention provides acquisition device and method for energy consumption in a POE (power over Ethernet) system. The POE system uses a PSE (power sourcing equipment) power circuit composed of a PSE power source, a coupled transformer and a PD (power device) for power supply. The PD particularly comprises a current acquisition module, a voltage acquisition module and an energy consumption calculation module. The current acquisition module comprises a current sampling resistor and a current acquisition chip. The voltage acquisition module comprises a divider resistor, a voltage sampling resistor and a voltage acquisition chip. The energy consumption calculation module is connected with the current sampling chip and the voltage sampling chip respectively and is used for calculating to acquire energy consumption of the corresponding PD according to a first voltage value and a second voltage value. Energy consumption of the PD can be acquired objectively and accurately, accuracy of acquiring energy consumption in the POE system is increased, and management of energy consumption can be achieved accurately according to acquisition result.

Description

technical field [0001] The present application relates to the field of network technology, in particular to an energy consumption collection device and method in a POE system. Background technique [0002] Power over Ethernet (POE, PowerOverEthernet) refers to powering some Ethernet-based terminals (such as IP phones, wireless LAN access points, network cameras, etc.) without changing the existing Ethernet cabling infrastructure. While transmitting data signals, it can also provide DC power supply technology for such devices. A complete POE system includes two parts: power supply equipment (PSE, PowerSourcingEquipment) and powered equipment (PD, PowerDevice). Among them, PSE is used to supply power to Ethernet client devices, responsible for injecting DC power into Ethernet cables, and also manages the entire POE power supply process; PD is the PSE load receiving power supply, that is, client devices of the POE system, such as IP phones PCs, WLAN access points, IP cameras,...

AI Technical Summary

Problems solved by technology

However, the PSE management module 112 does not perform energy consumption management, and the energy consumption evaluation of the powered device PD is usually done manually during the network construction design, which will lead to subjectivity and inaccuracy of the evaluation results, thereby reducing the cost of energy consumption management. Accuracy, while the low accuracy of energy consumption management will bring a series of problems: for example, if the evaluation result is far less than the actual energy consumption of the PD equipment, it will lead to inappropriate selection of PD equipment, causing a large energy loss in the entire communication network Exceeding the plan based on the evaluation results, unable to achieve green and environmentally friendly networking, etc.

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