公开(公告)号：US20190253268A1

公开(公告)日：2019-08-15

申请号：US16391021

申请日：2019-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shiyong FU ,  Yan ZHUANG ,  Jincan CAO ,  Fuguang HUANG ,  Xueqi CHEN ,  Rui HUA

IPC: H04L12/10 ,  H04L12/40 ,  G06F1/26 ,  G06F1/30

CPC classification number: H04L12/10 ,  G06F1/266 ,  G06F1/30 ,  H04L12/40045

Abstract: A network device includes a power system, a processor, a power sourcing equipment PSE chip coupled to a first forward power supply port, and a first powered device PD chip coupled to a first reverse power receiving port. A first powered device is connected to the first forward power supply port and the first reverse power receiving port. When detecting that a power failure occurs on the network device, the processor instructs the first PD chip to draw power from the first powered device; the first PD chip draws the power from the first powered device through the first reverse power receiving port, and supplies the obtained power to the power system. Therefore, when a power failure occurs, the network device can continue to obtain power and work properly when the power failure occurs.

公开(公告)号：US20140359320A1

公开(公告)日：2014-12-04

申请号：US14464514

申请日：2014-08-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui HUA ,  Ying GU ,  Zhangqing HE ,  Jianguang YANG ,  Tongqiang CAO ,  Anhu HUANG

IPC: G06F1/26

CPC classification number: G06F1/26 ,  H04L12/10 ,  H04L12/413

Abstract: The application pertains to a method for an Ethernet power souring equipment to provide electric power to one or more Ethernet powered devices. A controlling apparatus determines a power supply mode of the Ethernet power sourcing equipment, and determines high-power Ethernet powered device(s) and low-power Ethernet powered device(s) among the Ethernet powered devices. The controlling apparatus sets a power supply priority for each of the Ethernet powered devices. In one power supply mode, the power supply priority of a high-power Ethernet powered device is same as or lower than the lowest priority of the low-power Ethernet powered device(s). When a new Ethernet powered device is connected to the Ethernet power sourcing equipment, the controlling apparatus determines whether to supply electric power to the new Ethernet powered device according to its power supply priority.

Abstract translation: 该应用涉及以太网电力设备向一个或多个以太网供电设备提供电力的方法。 控制设备确定以太网供电设备的电源模式，并确定以太网供电设备中的大功率以太网供电设备和低功率以太网供电设备。 控制装置为每个以太网供电设备设置电源优先级。 在一个电源模式下，大功率以太网供电设备的电源优先级低于或低于低功率以太网供电设备的最低优先级。 当新的以太网供电设备连接到以太网供电设备时，控制设备根据其电源优先级确定是否向新的以太网供电设备供电。