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PoE (Power over Ethernet) power compensation method and PSE (Power Sourcing equipment)

A technology of power supply equipment and power compensation, applied in the direction of data switching current source, data exchange details, etc., can solve the problem that the power cannot reach the negotiated power, etc.

Active Publication Date: 2016-10-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a PoE power compensation method and power supply equipment, which are used to solve the problem that sometimes the power obtained by the PD connected to the PSE cannot reach the negotiated power

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  • PoE (Power over Ethernet) power compensation method and PSE (Power Sourcing equipment)
  • PoE (Power over Ethernet) power compensation method and PSE (Power Sourcing equipment)
  • PoE (Power over Ethernet) power compensation method and PSE (Power Sourcing equipment)

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Embodiment Construction

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] figure 1 It is a flow chart of Embodiment 1 of the PoE power compensation method of the present invention, such as figure 1 As shown, the specific steps of the method are as follows:

[0055] S101: The PSE obtains the resistance of the Ethernet cable between the PSE and the PD to be powered.

[0056] The PSE is connected to the PD through an Ethernet cable, and the Ethernet cable has power loss during the power supply process. The PSE can obtain the resistan...

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Abstract

The present invention provides a PoE power compensation method and power supply equipment, wherein the method includes: the PSE obtains the resistance of the Ethernet line between the PSE and the PD to be powered; The PSE pre-obtains the negotiated power with the PD and the resistance of the Ethernet cable to calculate the compensation power; the PSE uses the sum of the negotiated power and the compensation power as the output power; the PSE calculates the compensation power according to the output power Power is supplied to the PD through the Ethernet line. This solution detects the resistance of the Ethernet line through the PSE to realize real-time compensation for the power output to the PD, and compensates for the power loss on the Ethernet line, that is, to provide sufficient power to the PD, effectively avoiding the PD Abnormal situations such as repeated power on and off due to insufficient power.

Description

technical field [0001] Embodiments of the present invention relate to a network power supply technology, and in particular to a method for power compensation over Ethernet (English: Powerover Ethernet, abbreviated: PoE) and a power supply equipment (English: power sourcing equipment, abbreviated: PSE). Background technique [0002] The devices in the PoE system are divided into a power supply device and a powered device (English: powered device, PD for short), and the power supply device supplies power to the powered device through an Ethernet cable. [0003] PSE power negotiation mainly includes physical layer hierarchical negotiation and link layer protocol power negotiation. In physical layer grading negotiation power, the PSE classifies the output current according to the current level of the PD, and then outputs power according to the grading current. Link layer protocol power negotiation is the power consumption required by the PSE and PD communication to obtain the P...

Claims

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Application Information

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IPC IPC(8): H04L12/10
Inventor 杨建光付世勇华睿
Owner HUAWEI TECH CO LTD