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WO2017215672A1 - Poe系统中的供电方法和供电设备 - Google Patents

Poe系统中的供电方法和供电设备 Download PDF

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Publication number
WO2017215672A1
WO2017215672A1 PCT/CN2017/088879 CN2017088879W WO2017215672A1 WO 2017215672 A1 WO2017215672 A1 WO 2017215672A1 CN 2017088879 W CN2017088879 W CN 2017088879W WO 2017215672 A1 WO2017215672 A1 WO 2017215672A1
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WO
WIPO (PCT)
Prior art keywords
power supply
chip
supply path
path
backup
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PCT/CN2017/088879
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English (en)
French (fr)
Inventor
李响
屈敬翔
赵兵兵
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中兴通讯股份有限公司
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Publication of WO2017215672A1 publication Critical patent/WO2017215672A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements

Definitions

  • the present disclosure relates to the field of communications, for example, to a power supply method and a power supply apparatus in a POE system.
  • Power Over Ethernet refers to the transmission of data signals to terminals based on Internet Protocol (IP), without any changes to the Ethernet infrastructure.
  • IP Internet Protocol
  • POE technology can ensure the normal operation of the network while ensuring the safety of structured wiring, minimizing costs.
  • the POE system includes two parts: Power Sourcing Equipment (PSE) and Powered Device (PD).
  • PSE Power Sourcing Equipment
  • PD Powered Device
  • Power supply backup is not available in current Power over Ethernet devices.
  • the effect of power supply backup is generally achieved by designing the power receiving device.
  • the powered device must be backed up by two ports to achieve the purpose of power backup.
  • the patent number "CN200910088410.5" is a method for implementing a power over Ethernet POE.
  • the DC power supply provided by the power supply device PSE is received through at least two ports; the access is from at least two ports.
  • the multi-channel DC power supply performs load balancing processing; the DC power supply subjected to load balancing processing is output to the load.
  • two ports are provided on the power receiving device to receive the current of the power supply device, so that even if the received current of one port on the power receiving device is abnormal, the other port can supply power normally.
  • the related art power receiving device uses two ports for power supply, which not only increases the cost of the powered device, but also is cumbersome and not compatible in practical applications.
  • the present disclosure provides a power supply method and a power supply device in a POE system, which solves the problems of increasing the cost of a power receiving device caused by setting two port receiving power sources on a power receiving device in the related art, and is difficult to implement and has poor compatibility.
  • the present disclosure provides a power supply method in a POE system, including:
  • the power supply device includes at least one power supply chip and at least one power supply port, and the current transmitted in the main power supply path and the at least one backup power supply path is transmitted from the at least one power supply chip to the same power supply port to supply power to the power receiving device;
  • the power supply device When it is detected that the main power supply path is abnormal, the power supply device is switched from the main power supply path to the backup power supply path according to a preset rule to supply power to the power receiving device.
  • the present disclosure also provides a power supply device in a POE system, including: a power supply path, at least one power supply chip, and at least one power supply port;
  • the power supply path includes a main power supply path and at least one standby power supply path, and the current in the main power supply path and the at least one backup power supply path is transmitted from the at least one power supply chip to the same power supply port to supply power to the power receiving device; the standby power supply path is set to be the main power supply When the path power supply is abnormal, the power supply device of the main power supply path is powered.
  • the present disclosure also provides a computer readable storage medium storing computer executable instructions for performing a power supply method in the POE system described above.
  • the power supply method and the power supply device in a POE system provided by the present disclosure include a main power supply path and at least one backup power supply path corresponding thereto in the power supply device, and can switch to the backup power supply when the current main power supply path is abnormal.
  • the present invention provides power supply to the power receiving device.
  • the present invention implements backup power supply on the power supply device. When the working port of the power supply device is normal or abnormally powered off, the power receiving device can be continuously powered, and the present invention is currently in use.
  • the power-receiving device does not need to add ports and performs other settings, so the present invention has very good compatibility.
  • FIG. 1 is a flowchart of a power supply method in a POE system according to Embodiment 1;
  • FIG. 2 is a schematic diagram of a chip structure of a power supply device in a POE system according to Embodiment 1;
  • FIG. 3 is a schematic diagram of a chip structure of a power supply device in another POE system according to Embodiment 1;
  • FIG. 4 is a schematic diagram of a chip structure of a power supply device in another POE system according to Embodiment 1;
  • FIG. 5 is a schematic diagram of a chip structure of a power supply device in a POE system according to Embodiment 2;
  • FIG. 6 is a schematic structural diagram of hardware of a communication device according to Embodiment 3.
  • this embodiment provides a power supply method in a POE system, where power supply backup is implemented on a power supply device side.
  • a power receiving device receives power supply from a power supply device, if the power supply path of the power supply device is abnormal, the power supply device may The power supply method in the POE system of the embodiment is used to supply power to the powered device, ensuring that the power supply of the powered device is not interrupted, and the loss caused by the power interruption is avoided.
  • the power supply method in the POE system in this embodiment includes the following steps.
  • a main power supply path is provided in the power supply device, at least one backup power supply path, and the main power supply path and the at least one backup power supply path reach the same power supply port from the power supply chip.
  • step 120 when it is detected that the main power supply path is abnormal, the main power supply path is switched to the standby power supply path according to a preset rule.
  • the main power supply path and the backup power supply path are both power supply paths of the power supply device, and the power supply path is a physical path for current transmission, and is a path from the power supply chip of the power supply device to the power supply port of the power supply device.
  • the power receiving device is actually connected to the power supply port of the power supply device.
  • the main power supply path or the backup power supply path supplies power to the power receiving device, the current will be from the power supply device.
  • the power supply port output of the power supply device that is, the power supply path of the main power supply path and the backup power supply path to the same power receiving device is performed through the same external power supply port of the power supply device.
  • the settings of the main power supply path and the backup power supply path may be performed in advance.
  • one power supply path of the power supply chip may be selected as the main power supply path, and at least one power supply path is selected as the backup power supply path, and the information of the main power supply path and the standby path is stored in a group to form a power supply path group and a power supply path.
  • the configuration of the group can be performed by the Ethernet device command line.
  • the power supply path group is temporary, that is, when the power supply device needs power supply backup, the power supply path group association can be configured; when the power supply device releases the power supply backup, the power supply path group can also be deleted. Association. After the configuration is completed, the settings of the main power supply path and the backup power supply path can be sent to the power supply chip of the main power supply path and the backup power supply path for later use.
  • the backup power supply path can be used to supply power to the power receiving equipment of the main power supply path, thereby avoiding power supply interruption and loss.
  • the power supply device may be affected. If the power supply provided by the backup power supply path does not meet the requirements of the power receiving device, Even if the main power supply path and the backup power supply path are switched, the powered device will still be affected.
  • the power supply information of the main power supply path and the backup power supply path may be configured to be the same, so that the power output from the main power supply path and the backup power supply path is the same, and the power supply provided by the switched backup power supply path can be ensured.
  • the power meets the requirements of the powered device, wherein the power supply information includes the power supply enable switch and the configured power supply. When configuring the main power supply path and the backup power supply path, their configured power supply can be set to the same power.
  • the main power supply path is a path from the power supply chip directly to the first power supply port, where the first power supply port is the power supply port of the main power supply path, and the power supply device is connected to the power receiving device.
  • the backup power supply path is a path through which the power supply chip reaches the first power supply port through the second power supply port, where the second power supply port is the original power supply port of the backup power supply path. Referring to FIG. 2, the main power supply path is the path A, and the backup power supply path is the path B.
  • the path A directly reaches the power supply port 1 from the power supply chip, where the power supply port 1 is the first power supply port, and the path B is from the power supply chip to the power supply port 2, Then reach the power supply port 1, where the power supply port 2 is the second power supply port.
  • the main power supply path that is, the path A in FIG. 2 is in the working state
  • the backup power supply path B is in a self-working state
  • the second power supply port that is, the power supply port 2 in FIG. 2 can be used to supply power to other powered devices. .
  • the power supply chip may be one or more.
  • the chip to which the main power supply path and the backup power supply path of the present embodiment are connected is also not limited.
  • the backup power supply path and the main power supply path may be power supply paths of the same power supply chip, or at least one of the backup power supply paths and the main power supply path belong to different power supply circuits.
  • the main power supply path A and the backup power supply path B in FIG. 2 belong to the same power supply chip.
  • the same power supply information can be configured for the main power supply path A and the backup power supply path B. And storing the power supply information in the power supply chip.
  • the power supply port 1 of the main power supply path A and the power supply port 2 of the backup power supply path B may be configured with the same power supply information, and the power supply information may include power supply. Can switch and configure power supply.
  • the power supply chip connected by the main power supply path A can detect whether the current power supply condition of the main power supply path A is abnormal.
  • the power supply chip can detect the current power supply information of the main power supply path A, and determine whether the power supply of the current power supply port 1 is abnormal. If the power supply is abnormal, the power supply chip initiates switching of the main power supply path and the backup power supply path, and disconnects the current one. Power supply to the main power supply path, by backup The power supply path supplies power to the powered device. At this time, the current is sent from the power supply chip, passes through the backup power supply path B, passes through the power supply port 2, reaches the power supply port 1, and supplies power to the power receiving device PD1.
  • the detection alarm module detects whether the power supply of the power supply port 1 of the main power supply path A is abnormal by the detection alarm module in the power supply device of the POE system.
  • the detection alarm module detects the actual power supply information of the current power supply port 1 through the timer query. When the actual power supply information and the configured power supply information do not match, the alarm is generated.
  • the alarm transmission information sends a switching command to the power supply chip. After receiving the switching command, the chip initiates switching of the main power supply path and the backup power supply path, disconnects the power supply of the current main power supply path, and supplies power to the power receiving device by the backup power supply path.
  • the actual power supply information obtained by the power supply chip or the detection alarm module includes the power supply enable switch and the actual power supply of the power supply port of the main power supply path. After the actual power supply information is obtained, the power supply chip or the detection alarm module can perform the following analysis according to the actual power supply information. .
  • the main power supply path and the backup power supply path may be connected to different power supply chips.
  • at least one of the backup power supply paths and the main power supply chip are connected to different power supply chips. There are two types of connection between the main power supply path and the backup power supply path and the power supply chip.
  • the main power supply path is connected to a power supply chip, and the backup power supply path is connected to other power supply chips.
  • the backup power supply path may be connected to the same power supply chip, or may be connected to different power supply chips.
  • the backup power supply path there is a power supply path of the power supply chip different from the main power supply path, and there is also a power supply path of the same power supply chip connected to the main power supply path.
  • FIG. 3 shows a chip structure for power supply backup across a power supply chip
  • FIG. 3 shows a case of a backup power supply path, which is only used to illustrate the power supply across the chip, and the backup power supply path of the embodiment is provided. There is no limit to the number of them.
  • the power supply path C is a main power supply path, and directly reaches the power supply port 2 of the power supply chip 1 from the power supply chip 1, and supplies power to the power receiving device PD1, and the power supply port 2 is the first power supply port.
  • the power supply path D is a backup power supply path, from the power supply chip 2 to the power supply port 5 of the power supply chip 2, from the power supply port 5 of the power supply chip 2 to the power supply port 2 of the power supply chip 1, and the power supply port 5 of the power supply chip 2 is the second power supply port. .
  • the power supply information of the main power supply path and the backup power supply path can be respectively sent to the power supply chips connected to each other.
  • the configuration of the main power supply path and the backup power supply path refer to this embodiment. The above related description will not be repeated here.
  • the detection of the main power supply path is implemented by a detection alarm module in the Ethernet device.
  • the detection alarm module detects whether the power supply of the power supply port 2 of the main power supply path C is abnormal.
  • the detection alarm module detects the actual power supply information of the current power supply port 2 through the timer timing query. When the actual power supply information and the pre-configured power supply information do not match, the alarm is generated and the alarm transmission information is sent to the power supply port 2.
  • the electric command disconnects the power supply of the main power supply path C, and the alarm transmission information simultaneously sends a switching power supply command to the power supply port 5 of the power supply chip 2, and the power supply device PD1 is powered by the backup power supply path D.
  • the determining, by the detecting alarm module, whether the power supply of the power supply port 2 of the main power supply path C is abnormal may include the following manner.
  • the power supply port may be abnormally operated, resulting in abnormal operation of the power supply path. Therefore, the power supply chip may be set to avoid abnormality of the power supply chip caused by the power supply device.
  • a plurality of power supply chips may be disposed inside the power supply device, and the main power supply path and the backup power supply path share one power supply chip and one power supply port.
  • the power supply chip is provided with a backup power supply chip, and the backup power supply chip and the power supply chip Connection, at this time, detecting the current main power supply path in step 120 is to detect all the power supply paths of the current power supply chip, and step 120 may be: in the case that the current power supply of all the main power supply paths is abnormal, according to a preset rule from the current The power supply chip is switched to its corresponding backup power supply chip to supply power to the powered device.
  • the configuration of the main power supply path and the backup power supply path may be referred to, that is, the main power supply chip and the backup power supply chip are disposed in the same power supply chip group, and the power supply chip set also has Temporary, the power chipset can be configured to be deleted, and the configuration information of the main power supply chip and the backup power supply chip in the power supply chipset is the same, and the main power supply chip supplies power to the power receiving device.
  • Detecting the power supply chip abnormality can be implemented by the detection alarm module in the Ethernet device.
  • the detecting alarm module detects whether the power supply of all the power supply ports of the main power supply chip is abnormal, if the main power supply chip is If the power supply port is abnormal, the main power supply chip may have a problem.
  • the detection alarm module sends a command to stop the power supply to the main power supply chip, and sends a switching power supply command to the standby power supply chip to control the standby power supply chip to supply power to the power receiving device.
  • the power supply chip 1 in FIG. 4 is a main power supply chip
  • the power supply chip 2 is a backup power supply chip, wherein the main power supply path and the backup power supply path share one power supply chip and one power supply port, that is, each group of main power supply paths and The backup power supply paths are all paths from the main power supply chip 1 to the same power supply port. See power supply path E and power supply path F in FIG.
  • the detection alarm module obtains the actual power supply information of all the power supply ports of the current power supply chip through the timer timing query. When the obtained actual power supply information does not match the corresponding configuration power supply information, all the power supply paths of the main power supply chip are abnormal. At this time, it is determined that the main power supply chip is abnormal, and an alarm is generated.
  • the detection alarm module sends a power-off command to the main power supply chip 1, and simultaneously sends a power-off command to the backup power supply chip 2, and the backup power supply chip 2 supplies power to the power-receiving device PD1.
  • the current in the backup power supply path is sent by the backup power supply chip to the corresponding power supply port.
  • FIG. 4 above is only for exemplifying the arrangement of the main power supply chip and the backup power supply chip, and there is no limitation on the number of spare chips.
  • a plurality of backup power supply chips may be disposed on the main power supply chip. When the main power supply chip is abnormal, one of the plurality of spare chips is selected to replace the main power supply chip for power supply.
  • a plurality of power supply paths are configured for one power supply port, one is a main power supply path, and the other is a backup power supply path.
  • the power supply can be switched to the backup power supply.
  • the path is used to supply power to the powered device, and the power supply device is prevented from being powered off.
  • two ports are provided on the powered device to receive the power.
  • the main power supply path can be set when the backup power supply is needed.
  • the backup power supply path provides a plurality of spare power supply paths for the power supply device, and reduces the possibility of power-off of the power-receiving device.
  • the backup power supply mode of the embodiment is flexible, and the power-receiving device can be used, the compatibility is good, and the utility is strong. .
  • the embodiment further provides a plurality of configurations of the main power supply path and the backup power supply path, which can meet different needs and improve the usability of the embodiment.
  • the embodiment provides a power supply device in a POE system, including a power supply path, at least one power supply chip, and at least one power supply port.
  • the power supply path includes a main power supply path and at least one backup power supply path, a main power supply path and at least one
  • the spare power supply path reaches the same power supply port from at least one power supply chip; the standby power supply path is set to supply power to the power receiving device of the main power supply path when the power supply of the main power supply path is abnormal.
  • the main power supply path and the backup power supply path are both power supply paths of the power supply device, and the power supply path is a physical path for current transmission, and is a path from the power supply chip of the power supply device to the power supply port of the power supply device.
  • the power receiving device is actually connected to the power supply port of the power supply device.
  • the main power supply path or the backup power supply path supplies power to the power receiving device, the current will be from the power supply device.
  • the power supply port output of the power supply device that is, the power supply path of the main power supply path and the backup power supply path to the power receiving device is performed through the same external power supply port of the power supply device.
  • the settings of the primary power supply path and the backup power supply path need to be performed in advance.
  • the setting of the main power supply path and the backup power supply path is completed by the user on the management interface of the power supply device, and the user can select one power supply path of the power supply chip as the main power supply path, and select at least one power supply path as the backup power supply path, and the main power supply path
  • the information of the alternate path is stored in a group to form a power supply path group.
  • the power supply device can use its own device system software to execute the corresponding Ethernet device command line to implement configuration.
  • the device system software can set the power supply path group as a temporary power supply path group, that is, when the power supply device needs power supply backup, the power supply path group can be configured to be associated, and the power supply device can be powered off.
  • the power path group association can also be deleted.
  • the settings of the main power supply path and the backup power supply path can be sent to the power supply chip of the main power supply path and the backup power supply path for later use.
  • the power supply information of the main power supply path and the backup power supply path are configured to be the same, and optionally, the power supply power of the main power supply path and the power supply power of the backup power supply path are configured to be the same. The value.
  • the main power supply path directly reaches the first power supply port from the power supply chip, where the first power supply port is a power supply port that is connected to the power receiving device by the main power supply path.
  • the backup power supply path is from the power supply chip to the first power supply port through the second power supply port.
  • the main power supply path and the backup power supply path include at least the following two setting modes.
  • the main power supply path and the backup power supply path are power supply paths of the same power supply chip.
  • the main power supply path A and the backup power supply path B are power supply paths of the same chip, and they The current in the current is from the same chip, the current in the main power supply path directly reaches the power supply port 1, the current in the backup power supply path is sent from the power supply chip, reaches the power supply port 2, and then reaches the power supply port 1 to supply power to the power receiving device.
  • the main power supply path and the backup power supply path are power supply paths of different power supply chips.
  • the main power supply path C and the backup power supply path D are power supply paths of different power supply chips, and different power supply chips are connected.
  • the main power supply path C is connected to the power supply chip 1
  • the backup power supply path D is connected to the power supply chip 2 .
  • the main power supply path When it is detected that the main power supply path has a power supply abnormality, it switches to the backup power supply path D for power supply.
  • the current of the backup power supply path D is sent from the power supply chip 2, reaches the power supply port 5 of the power supply chip 2, and finally reaches the power supply port 2 of the power supply chip 1, and supplies power to the power receiving device PD1 of the main power supply path C.
  • the power supply chip can be utilized.
  • the main power supply path of the current power supply is detected.
  • the power supply chip initiates switching of the main power supply path and the backup power supply path.
  • the main power supply path of the current power supply can be detected by the detection and alarm module of the Ethernet device, and when the main power supply path is abnormal, the switching of the main power supply path and the backup power supply path is initiated. Realize continuous power supply to the powered device.
  • the power supply chip when the power supply chip itself has a problem, it may also cause the power supply path to work abnormally. Therefore, the power supply chip can be set to avoid the abnormality of the power supply chip caused by the power failure of the power receiving device.
  • a plurality of power supply chips may be disposed inside the power supply device, and the main power supply path and the backup power supply path share one power supply chip and one power supply port, that is, the main power supply path and the backup power supply path partially overlap, and at this time, the power supply chip is set.
  • the power supply chip 1 in FIG. 4 is a main power supply chip
  • the power supply chip 2 is a backup power supply chip, wherein the main power supply path and the backup power supply path share one power supply chip and one power supply port, that is, each group of main power supply paths and The backup power supply paths are all paths from the main power supply chip 1 to the same power supply port.
  • the detection alarm module obtains the actual power supply information of all the power supply paths of the current power supply chip through the timer timing query. When the obtained actual power supply information does not match the corresponding configured power supply information, It indicates that all the power supply paths of the main power supply chip are abnormally powered. At this time, it is determined that the main power supply chip is abnormal, and an alarm is generated.
  • the detection alarm module sends a power-off command to the main power supply chip 1, and simultaneously sends a power-off command to the backup power supply chip 2,
  • the power supply chip 2 supplies power to the power receiving apparatus PD1.
  • the current in the backup power supply path is sent by the backup power supply chip, and flows through the main power supply chip into the standby power supply chip to reach the corresponding power supply port.
  • a plurality of power supply paths are configured for one power supply port, one is a main power supply path, and the other is a backup power supply path, and the main power supply path and at least one backup power supply path are The power chip reaches the same power port.
  • the function of the backup power supply path is to supply power to the powered device when the current main power supply path is abnormal, and to avoid loss caused by power failure of the power receiving device.
  • two ports are received on the power receiving device to avoid power supply.
  • the power-off device is powered off.
  • the main power supply path and the multiple backup power supply paths are set for one power supply port, thereby reducing the possibility of power-off of the power-receiving device, and the present embodiment provides
  • the power supply backup device has flexible power supply mode, good compatibility, and strong practicability, and is suitable for existing power receiving equipment.
  • the embodiment provides a computer readable storage medium storing computer executable instructions for executing a power supply method in the POE system.
  • FIG. 6 is a schematic diagram showing the hardware structure of a communication device according to Embodiment 3.
  • the communication device includes: one or more processors 410, a memory 420, and at least one power supply chip 450.
  • the power supply chip 450 includes At least one power port.
  • One processor 410 is taken as an example in FIG.
  • the communication device may also include an input device 430 and an output device 440.
  • the processor 410, the memory 420, the input device 430, the output device 440, and the power supply chip 450 in the communication device may be connected by a bus or other means, and the bus connection is taken as an example in FIG.
  • the power supply chip 450 is the power supply chip described in the above embodiment.
  • the input device 430 can receive input numeric or character information, and the output device 440 can include a display device such as a display screen.
  • the memory 420 is a computer readable storage medium that can be used to store software programs, computer executable programs, and modules.
  • the processor 410 executes a plurality of functional applications and data processing by executing software programs, instructions, and modules stored in the memory 420 to implement the power supply method in any of the POE systems of the above embodiments.
  • the memory 420 may include a storage program area and a storage data area, wherein the storage program area is storable
  • the memory may include volatile memory such as random access memory (RAM), and may also include non-volatile memory such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.
  • Memory 420 can be a non-transitory computer storage medium or a transitory computer storage medium.
  • the non-transitory computer storage medium such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • memory 420 can optionally include memory remotely located relative to processor 410, which can be connected to the electronic device over a network. Examples of the above networks may include the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • Input device 430 can be used to receive input digital or character information and to generate key signal inputs related to user settings and function control of the electronic device.
  • Output device 440 can include a display device such as a display screen.
  • a person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by executing related hardware by a computer program, and the program can be stored in a non-transitory computer readable storage medium.
  • the program when executed, may include the flow of an embodiment of the method as described above, wherein the non-transitory computer readable storage medium may be a magnetic disk, an optical disk, a read only memory (ROM), or a random access memory (RAM). Wait.
  • modules or steps of the present disclosure may be implemented in a general-purpose computing device, which may be centralized on a single computing device or distributed across a network of multiple computing devices, optionally, they may be calculated
  • the program code executable by the device is implemented, so that they can be stored in a storage medium (ROM/RAM, disk, optical disk) by a computing device, and in some cases, may be different from the order here.
  • the steps shown or described are performed, or they are separately fabricated into a plurality of integrated circuit modules, or a plurality of the modules or steps are fabricated as a single integrated circuit module.
  • the present disclosure implements backup power supply on the side of the power supply device.
  • the present disclosure sets the main power supply on the power supply device.
  • the path and the backup power supply path can be modified without changing the power receiving equipment, and are suitable for existing power receiving equipment, and have good compatibility.
  • the related art solution sets two receiving ports for the powered device, which is a passive way to prevent power failure, and cannot resist the power interruption caused by the abnormality of the power supply device.
  • the present disclosure can provide continuous power supply for the powered device, and has practicality. Sex.

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Abstract

一种POE系统中的供电方法和供电设备，其中，所述供电方法包括：在供电设备中设置一条主供电通路和至少一条备用供电通路，所述供电设备包括至少一个供电芯片和至少一个供电端口，所述主供电通路和所述至少一条备用供电通路从至少一个所述供电芯片到达同一供电端口；以及，当检测到主供电通路异常时，按照预设规则将所述供电设备从主供电通路切换到备用供电通路。

Description

POE系统中的供电方法和供电设备 技术领域
本公开涉及通信领域，例如涉及一种POE系统中的供电方法和供电设备。
背景技术
以太网供电(Power Over Ethernet，POE)指的是在以太网基础架构不作任何改动的情况下，在为一些基于网络间互连协议(Internet Protocol，IP)的终端传输数据信号的同时，还能为上述基于IP的终端提供直流供电的技术。POE技术能在确保结构化布线安全的同时保证网络的正常运作，最大限度地降低成本。POE系统包括供电设备(Power Sourcing Equipment，PSE)和受电设备(Powered Device，PD)两部分。当供电设备对受电设备进行无备份供电时，可能由于一些正常操作或者异常情况导致对受电设备的供电中断，产生损失。
目前的以太网供电设备中，并没有提供供电备份功能。在相关技术方法中，一般是通过对受电设备进行设计达到供电备份的效果。其中，受电设备必须通过两个端口进行供电备份，才能达到供电备份的目的。例如专利号为“CN200910088410.5”的专利-一种以太网供电POE的实现方法，在受电设备PD侧，通过至少两个端口接收供电设备PSE提供的直流电源；对从至少两个端口进入的多路直流电源进行负载均衡处理；将经过负载均衡处理的直流电源输出给负载。所以，相关的技术中，是在受电设备上设置两个端口接收供电设备的电流，这样，即使受电设备上一个端口的收到的电流异常，另一个端口还可以正常供电。相关技术的受电设备采用两个端口进行供电，不仅增加受电设备的成本，而且在实际应用中处理会非常繁琐，不具有兼容性。
发明内容
本公开提供一种POE系统中的供电方法和供电设备，解决相关技术中在受电设备上设置两个端口接收电源带来的受电设备成本增加，不易实现和兼容性差的问题。
本公开提供一种POE系统中的供电方法，包括：
在供电设备中设置一条主供电通路和至少一条备用供电通路，所述供电设 备包括至少一个供电芯片和至少一个供电端口，主供电通路和至少一条备用供电通路中传输的电流从至少一条供电芯片传输到同一供电端口为受电设备供电；以及，
当检测到主供电通路异常时，按照预设规则将所述供电设备从主供电通路切换到备用供电通路为受电设备供电。
本公开还提供一种POE系统中的供电设备，包括：供电通路，至少一个供电芯片和至少一个供电端口；
供电通路包括一条主供电通路和至少一条备用供电通路，主供电通路和至少一条备用供电通路中的电流从至少一个供电芯片传输到同一供电端口为受电设备供电；备用供电通路设置为，当主供电通路供电异常时，为主供电通路的受电设备供电。
本公开还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述POE系统中的供电方法。
本公开提供的一种POE系统中的供电方法和供电设备，在供电设备中，包含了主供电通路和与其对应的至少一条备用供电通路，当当前的主供电通路异常时，可以切换到备用供电通路对受电设备进行供电，本发明是在供电设备上实现备份供电，当供电设备的工作端口正常或者非正常断电时，受电设备可以持续被供电，采用本发明，目前已在使用的受电设备无需增加端口以及进行其他设置，所以本发明具有非常好的兼容性。
附图说明
图1为本实施例一提供的一种POE系统中的供电方法的流程图；
图2为本实施例一提供的一种POE系统中的供电设备的芯片结构图；
图3为本实施例一提供的另一种POE系统中的供电设备的芯片结构图；
图4为本实施例一提供的另一种POE系统中的供电设备的芯片结构图；
图5为本实施例二提供的一种POE系统中的供电设备的芯片结构图；以及，
图6是本实施例三提供的一种通信设备的硬件结构示意图。
具体实施方式
下面通过具体实施方式结合附图对本公开作详细说明。并且在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互组合。
实施例一
参见图1，本实施例提供一种POE系统中的供电方法，在供电设备一侧实现了供电备份，受电设备在接受供电设备的供电时，若供电设备的供电通路发生异常，供电设备可以利用本实施例的POE系统中的供电方法为受电设备正常供电，保证受电设备供电不中断，避免因为供电中断带来的损失。
本实施例提供POE系统中的供电方法包括以下步骤。
在步骤110中，在供电设备中设置一条主供电通路，至少一条备用供电通路，主供电通路和至少一条备用供电通路从供电芯片到达同一供电端口。以及，
在步骤120中，当检测到主供电通路异常时，按照预设规则从主供电通路切换到备用供电通路。在本实施例中，主供电通路和备用供电通路都是属于供电设备的供电通路，供电通路是电流传输的物理路径，是从供电设备的供电芯片到供电设备的供电端口的通路。受电设备与供电设备连接时，实际上是受电设备与供电设备对外供电的供电端口连接，本实施例中无论是主供电通路还是备用供电通路，对受电设备进行供电时，电流都会从供电设备的供电端口输出，也即主供电通路和备用供电通路对同一受电设备的供电是通过供电设备的同一个对外的供电端口进行的。
在本实施例中，若供电设备提供备份供电的功能，则可以预先进行主供电通路和备用供电通路的设置。可选的，可以选择供电芯片的一条供电通路作为主供电通路，选择至少一条供电通路作为备用供电通路，将主供电通路和备用通路的信息保存在一个组中，形成一个供电通路组，供电通路组的配置可以由以太网设备命令行来执行。为了便于对主供电通路和备用供电通路的管理，供电通路组具有临时性，即在供电设备需要供电备份时，可配置供电通路组关联；在供电设备解除供电备份时，也可删除供电通路组关联。配置完成后，可以将主供电通路和备用供电通路的设置下发到主供电通路和备用供电通路的供电芯片存储，便于以后的使用。
设置了主供电通路和备用供电通路后，当主供电通路出现供电异常，如断电的情形时，可以利用备用供电通路对主供电通路的受电设备供电，避免受电设备供电中断，造成损失。
可选地，若主供电通路当前的供电功率出现异常，也可能会对受电设备造成影响，若切换后的备用供电通路提供的供电功率还是不满足受电设备的要求， 即使进行了主供电通路和备用供电通路的切换，受电设备还是会受到影响。为了避免上述情况的发生，可以将主供电通路和备用供电通路的供电信息配置为相同，使得从主供电通路和备用供电通路输出的电路的功率相同，可以保证切换后的备用供电通路提供的供电功率满足受电设备的要求，其中供电信息包括供电使能开关和配置供电功率。在配置主供电通路和备用供电通路时，可以将它们的配置供电功率设置为相同的功率。
其中，主供电通路和备用供电通路中，主供电通路是从供电芯片直接到达第一供电端口的通路，这里的第一供电端口为主供电通路自身的供电端口，也是供电设备与受电设备连接的供电端口。备用供电通路是供电芯片经过第二供电端口到达第一供电端口的通路，这里的第二供电端口是备用供电通路自身原有的供电端口。参见图2，主供电通路是通路A，备用供电通路是通路B，通路A从供电芯片直接到达供电端口1，这里的供电端口1为第一供电端口，通路B从供电芯片到达供电端口2，再到达供电端口1，这里的供电端口2为第二供电端口。当主供电通路，即图2中的通路A处于工作状态时，备用供电通路B处于自我工作状态，可以利用自身原有的第二供电端口，即图2中的供电端口2为其他受电设备供电。
在本实施例中，对供电设备的供电芯片的数量没有任何限制，供电芯片可以为一个或多个。本实施例的主供电通路和备用供电通路所连接的芯片也没有任何限制。其中，备用供电通路与主供电通路可以是同一供电芯片的供电通路，或者至少一条备用供电通路与主供电通路属于不同供电芯片的供电通路。
参见图2，图2中的主供电通路A和备用供电通路B属于同一供电芯片，对主供电通路和备用供电通路进行配置时，可以为主供电通路A与备用供电通路B配置相同的供电信息，并且将这些供电信息保存到供电芯片中，在本实施例中，可以是为主供电通路A的供电端口1和备用供电通路B的供电端口2配置相同的供电信息，供电信息可以包括供电使能开关和配置供电功率。
当主供电通路供电时，需要对主供电通路的供电情况进行检测，并在主供电通路供电异常时，切换到备用供电通路为受电设备供电。
参见图2，可以由主供电通路A连接的供电芯片检测当前的主供电通路A的供电情况是否异常。例如，可以由供电芯片检测当前的主供电通路A的实际供电信息，判断当前的供电端口1的供电是否异常，若供电异常，供电芯片发起主供电通路和备用供电通路的切换，断开当前的主供电通路的供电，由备用 供电通路对受电设备进行供电。此时，电流从供电芯片发出，通过备用供电通路B，经过供电端口2，到达供电端口1，为受电设备PD1供电。
此外，还可以通过POE系统的供电设备中的检测告警模块检测主供电通路A的供电端口1的供电是否异常。检测告警模块通过定时器定时查询检测当前供电端口1实际供电信息，当查询到的实际供电信息和配置的供电信息不相匹配时，则触发告警产生，告警传递信息向供电芯片发送切换命令，供电芯片收到切换命令后，发起主供电通路和备用供电通路的切换，断开当前的主供电通路的供电，由备用供电通路对受电设备进行供电。
其中，供电芯片或检测告警模块获取的实际供电信息包括主供电通路的供电端口的供电使能开关和实际供电功率，获取实际供电信息后，供电芯片或检测告警模块可以根据实际供电信息进行如下分析。
1)匹配供电端口1的实际供电使能开关信息与预先配置的供电使能开关信息，分析该供电端口是否存在异常。
2)分析供电端口实际供电功率和配置的供电功率等信息，分析供电端口1是否能够满足供电负载所要求的输出。
当供电设备中设有多个供电芯片时，主供电通路和备用供电通路可以连接不同的供电芯片。可选地，在本实施例的多个备用供电通路中，至少有一条备用供电通路与主供电芯片连接不同的供电芯片。主供电通路和备用供电通路与供电芯片的连接情况可以有以下两种。
1、主供电通路连接一个供电芯片，备用供电通路连接其他的供电芯片，其中，备用供电通路可能连接相同的供电芯片，也可能连接不同的供电芯片。
2、备用供电通路中，存在与主供电通路连接不同的供电芯片的供电通路，也存在与主供电通路连接相同的供电芯片的供电通路。
参见图3，图3示出了跨供电芯片备份供电的芯片结构，图3中示出了一个备用供电通路的情形，仅用于对跨芯片备份供电进行示例说明，对本实施例的备用供电通路的数量没有任何限制。
参见图3，供电通路C是主供电通路，从供电芯片1直接到达供电芯片1的供电端口2，为受电设备PD1供电，供电端口2为第一供电端口。供电通路D是备用供电通路，从供电芯片2到达供电芯片2的供电端口5，由供电芯片2的供电端口5到达供电芯片1的供电端口2，供电芯片2的供电端口5为第二供电端口。
主供电通路和备用供电通路配置完成后，可以将主供电通路和备用供电通路的供电信息分别下发到各自连接的供电芯片中保存，对主供电通路和备用供电通路的配置可以参考本实施例上述的相关描述，在此不再赘述。
对主供电通路的检测是由以太网设备中的检测告警模块实现。可选地，检测告警模块检测主供电通路C的供电端口2的供电是否异常。检测告警模块通过定时器定时查询检测当前供电端口2的实际供电信息，当查询到的实际供电信息和预先配置的供电信息不相匹配时，则触发告警产生，告警传递信息向供电端口2发送断电指令，断开主供电通路C的供电，告警传递信息同时向供电芯片2的供电端口5发送切换供电指令，由备用供电通路D对受电设备PD1进行供电。
其中，检测告警模块对主供电通路C的供电端口2的供电是否异常的判断可以包括以下方式。
1)匹配供电端口2的实际供电使能开关信息与预先配置的供电使能开关信息，分析该供电端口是否存在异常。
2)通过供电端口实际供电功率和配置的供电功率，分析供电端口2是否能够满足供电负载所要求的输出。
此外，考虑到供电芯片自身出现问题时，也可能导致供电端口工作异常，导致供电通路工作异常，因此可以对供电芯片进行设置，以避免供电芯片异常为受电设备带来的断电影响。
可选地，供电设备内部可以设置多个供电芯片，主供电通路和备用供电通路共用一个供电芯片以及一个供电端口，此时，该供电芯片设置有备用供电芯片，该备用供电芯片与该供电芯片连接，此时，步骤120中检测当前的主供电通路就是检测当前的供电芯片的全部供电通路，步骤120可以为，在当前的所有主供电通路供电异常的情况下，按照预设规则从当前的供电芯片切换到与其对应的备用供电芯片为受电设备供电。
其中，供电芯片和其备用供电芯片在配置时，可以参考主供电通路和备用供电通路的设置，即，将主供电芯片和备用供电芯片配置在同一个供电芯片组中，该供电芯片组也具有临时性，供电芯片组可配置可删除，供电芯片组中主供电芯片和备用供电芯片配置信息一致，由主供电芯片为受电设备供电。
检测供电芯片异常可由以太网设备中的检测告警模块实现。可选地，检测告警模块检测主供电芯片的所有供电端口的供电是否异常，若主供电芯片的所 有供电端口均异常，则主供电芯片可能发生了问题，检测告警模块向主供电芯片发送停止供电的指令，同时向备用供电芯片发送切换供电指令控制备用供电芯片为受电设备供电。
参见图4，图4中的供电芯片1是主供电芯片，供电芯片2是备用供电芯片，其中，主供电通路和备用供电通路共用一个供电芯片以及一个供电端口，即每一组主供电通路和备用供电通路都是从主供电芯片1到达同一供电端口的通路。参见图4中的供电通路E和供电通路F。
检测告警模块通过定时器定时查询获取当前供电芯片的所有供电端口的实际供电信息，当获取到的实际供电信息和对应的配置的供电信息不相匹配时，说明主供电芯片所有的供电通路异常，此时，判断主供电芯片异常，触发告警产生，检测告警模块向主供电芯片1发送断电指令，同时向备用供电芯片2发送切换供电指令，由备用供电芯片2对受电设备PD1进行供电。备用供电通路中的电流是由备用供电芯片发出，到达对应的供电端口。
在本实施例中，上述图4只是为了举例说明主供电芯片和备用供电芯片的设置，对备用芯片的数量没有任何限制。可选地，可以为主供电芯片设置多个备用供电芯片，当主供电芯片异常时，选择多个备用芯片的其中之一替代主供电芯片进行供电。
采用本实施例的供电方法，为一个供电端口配置了多条供电通路，一条是主供电通路，其余的是备用供电通路，在当前的主供电通路出现供电异常的情况下，可以切换到备用供电通路为受电设备供电，避免受电设备断电造成损失，相对于相关技术中，在受电设备上设置两个端口接收电源的方式，本实施例可以在需要备份供电时，设置主供电通路和备用供电通路，为供电设备提供多条备用的供电通路，降低受电设备的断电可能性，同时本实施例的备份供电方式灵活，受电设备均能使用，兼容性好，实用性强。
可选地，本实施例还提供了多种主供电通路和备用供电通路的设置方式，能满足不同的需要，提高本实施例的使用性。
实施例二
参见图5，本实施例提供一种POE系统中的供电设备，包括供电通路、至少一个供电芯片和至少一个供电端口。
供电通路包括主供电通路和至少一条备用供电通路，主供电通路和至少一 条备用供电通路从至少一个供电芯片到达同一供电端口；备用供电通路设置为，当主供电通路供电异常时，为主供电通路的受电设备供电。
在本实施例中，主供电通路和备用供电通路都是属于供电设备的供电通路，供电通路是电流传输的物理路径，是从供电设备的供电芯片到供电设备的供电端口的通路。受电设备与供电设备连接时，实际上是受电设备与供电设备对外供电的供电端口连接，本实施例中无论是主供电通路还是备用供电通路，对受电设备进行供电时，电流都会从供电设备的供电端口输出，也即主供电通路和备用供电通路对受电设备的供电是通过供电设备的同一个对外的供电端口进行的。
在本实施例中，若供电设备需要提供备份供电的功能，需要预先进行主供电通路和备用供电通路的设置。
其中，主供电通路和备用供电通路的设置由用户在供电设备的管理界面上完成，用户可以选择供电芯片的一条供电通路作为主供电通路，选择至少一条供电通路作为备用供电通路，将主供电通路和备用通路的信息保存在一个组中，形成一个供电通路组，用户设置供电通路组后，供电设备可以利用自身的设备系统软件执行对应的以太网设备命令行，实现配置。为了便于对主供电通路和备用供电通路进行管理，设备系统软件可以将供电通路组设为临时供电通路组，即在供电设备需要供电备份时，可配置供电通路组关联，在供电设备解除供电备份时，也可删除供电通路组关联。配置完成后，可以将主供电通路和备用供电通路的设置下发到主供电通路和备用供电通路的供电芯片存储，便于以后的使用。
其中，在配置主供电通路和备用供电通路时，需将主供电通路和备用供电通路的供电信息配置为相同，可选地，将主供电通路的供电功率和备用供电通路的供电功率配置为相同的数值。
在本实施例中，主供电通路是从供电芯片直接到达第一供电端口的，这里的第一供电端口是主供电通路与受电设备连接的供电端口。备用供电通路是从供电芯片经过第二供电端口到达第一供电端口。本实施例对主供电通路和备用供电通路连接的供电芯片没有任何限制。
其中，主供电通路和备用供电通路至少包括以下两种设置方式。
一、主供电通路和备用供电通路是同一供电芯片的供电通路。
参见图2，主供电通路A和备用供电通路B是同一芯片的供电通路，它们 中的电流是从同一芯片出发，主供电通路中的电流直接到达了供电端口1，备用供电通路中的电流从供电芯片发出，到达供电端口2，再到达供电端口1为受电设备供电。
二、主供电通路和备用供电通路是不同供电芯片的供电通路。
参见图3，主供电通路C和备用供电通路D是不同的供电芯片的供电通路，连接着不同的供电芯片。
其中，主供电通路C连接供电芯片1，备用供电通路D连接供电芯片2。当检测到主供电通路出现供电异常时，切换到备用供电通路D进行供电。备用供电通路D的电流从供电芯片2发出，到达供电芯片2的供电端口5，最终到达供电芯片1的供电端口2，为主供电通路C的受电设备PD1供电。
在上述的主供电通路和备用供电通路的设置方式下，对主供电通路和备用供电通路的异常的检测也有多种，当主供电通路和备用供电通路在同一供电芯片中时，可以利用本供电芯片对当前供电的主供电通路进行检测，当出现异常时，由供电芯片发起主供电通路和备用供电通路的切换。此外，无论主供电通路和备用供电通路如何设置，均可以由以太网设备的检测告警模块对当前供电的主供电通路进行检测，当主供电通路异常时，发起主供电通路和备用供电通路的切换，实现受电设备的连续供电。
其中，对主供电通路异常的判断参考实施例一的相关描述，本实施例不再赘述。
此外，供电芯片自身出现问题时，也可能导致供电通路工作异常。因此可以对供电芯片进行设置，以避免供电芯片异常为受电设备带来的断电影响。
可选地，供电设备内部可以设置有多个供电芯片，主供电通路和备用供电通路共用一个供电芯片以及一个供电端口，也即主供电通路和备用供电通路一部分重合，此时，该供电芯片设置有备用供电芯片，该备用供电芯片与该供电芯片连接，当检测告警模块检测到当前的供电芯片供电异常时，按照预设规则从当前的供电芯片切换到与其对应的备用供电芯片为受电设备供电。
参见图4，图4中的供电芯片1是主供电芯片，供电芯片2是备用供电芯片，其中，主供电通路和备用供电通路共用一个供电芯片以及一个供电端口，即每一组主供电通路和备用供电通路都是从主供电芯片1到达同一供电端口的通路。
检测告警模块通过定时器定时查询获取当前供电芯片的所有供电通路的实际供电信息，当获取到的实际供电信息和对应的配置的供电信息不相匹配时， 说明主供电芯片所有的供电通路供电异常，此时，判断主供电芯片异常，触发告警产生，检测告警模块向主供电芯片1发送断电指令，同时向备用供电芯片2发送切换供电指令，由备用供电芯片2对受电设备PD1进行供电。备用供电通路中的电流是由备用供电芯片发出，经过主供电芯片流入备用供电芯片，到达对应的供电端口。
采用本实施例的POE系统中的供电设备的供电备份装置，为一个供电端口配置了多条供电通路，一条是主供电通路，其余的是备用供电通路，主供电通路和至少一条备用供电通路从供电芯片到达同一供电端口。备份供电通路的作用是在当前的主供电通路出现供电异常时，为受电设备供电，避免受电设备断电造成损失，相对于相关技术中，在受电设备上设置两个端口接收电源避免受电设备断电的方案，本实施例可以在需要备份供电时，通过为一个供电端口设置主供电通路和多条备用供电通路，降低受电设备的断电可能性，同时本实施例提供的供电备份装置的供电方式灵活，兼容性好，实用性强，适用于已有的受电设备。
实施例三
本实施例提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述POE系统中的供电方法。
图6是本实施例三提供的一种通信设备的硬件结构示意图，如图6所示，该通信设备包括：一个或多个处理器410、存储器420、至少一个供电芯片450，供电芯片450包括至少一个供电端口。图6中以一个处理器410为例。
所述通信设备还可以包括：输入装置430和输出装置440。
所述通信设备中的处理器410、存储器420、输入装置430、输出装置440和供电芯片450可以通过总线或者其他方式连接，图6中以通过总线连接为例。
供电芯片450为上述实施例所述的供电芯片。输入装置430可以接收输入的数字或字符信息，输出装置440可以包括显示屏等显示设备。
存储器420作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块。处理器410通过运行存储在存储器420中的软件程序、指令以及模块，从而执行多种功能应用以及数据处理，以实现上述实施例中的任意一种POE系统中的供电方法。
存储器420可以包括存储程序区和存储数据区，其中，存储程序区可存储 操作系统、至少一个功能所需要的应用程序；存储数据区可存储根据电子设备的使用所创建的数据等。此外，存储器可以包括随机存取存储器(Random Access Memory，RAM)等易失性存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件或者其他非暂态固态存储器件。
存储器420可以是非暂态计算机存储介质或暂态计算机存储介质。该非暂态计算机存储介质，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实施例中，存储器420可选包括相对于处理器410远程设置的存储器，这些远程存储器可以通过网络连接至电子设备。上述网络的实例可以包括互联网、企业内部网、局域网、移动通信网及其组合。
输入装置430可用于接收输入的数字或字符信息，以及产生与电子设备的用户设置以及功能控制有关的键信号输入。输出装置440可包括显示屏等显示设备。
本领域普通技术人员可理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来执行相关的硬件来完成的，该程序可存储于一个非暂态计算机可读存储介质中，该程序在执行时，可包括如上述方法的实施例的流程，其中，该非暂态计算机可读存储介质可以为磁碟、光盘、只读存储记忆体(ROM)或随机存储记忆体(RAM)等。
本公开的多个模块或多个步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储介质(ROM/RAM、磁碟、光盘)中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成多个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
工业实用性
本公开在供电设备一侧实现了备份供电，相对于相关技术中需要在受电设备上设置两个端口接收电源以防止受电设备断电的方案而言，本公开在供电设备上设置主供电通路和备用供电通路，可以不对受电设备进行改造，适用于已有的受电设备，具有良好的兼容性。其次，相关技术的方案对受电设备设置两个接收端口，是一种被动防止断电的方式，不能抵御由供电设备异常而产生的供电中断，本公开可以为受电设备持续供电，具有实用性。

Claims (12)

  1. 一种以太网供电POE系统中的供电方法，包括：
    在供电设备中设置一条主供电通路和至少一条备用供电通路，所述供电设备包括至少一个供电芯片和至少一个供电端口，所述主供电通路和所述至少一条备用供电通路从至少一个所述供电芯片到达同一供电端口；以及，
    当检测到主供电通路异常时，按照预设规则将所述供电设备从主供电通路切换到备用供电通路。
  2. 如权利要求1所述的方法，其中，所述至少一个供电端口包括第一供电端口和第二供电端口；
    所述主供电通路从所述至少一个供电芯片到达所述第一供电端口，所述备用供电通路从所述至少一个供电芯片经过所述第二供电端口到达所述第一供电端口。
  3. 如权利要求2所述的方法，其中，所述至少一条备用供电通路与所述主供电通路使用同一供电芯片。
  4. 如权利要求2所述的方法，其中，所述至少一个供电芯片包括第一供电芯片和第二供电芯片，所述主供电通路从所述第一供电芯片到达所述第一供电端口，所述至少一个备用供电通路中的至少一个从所述第二供电芯片经过所述第二供电端口到达所述第一供电端口。
  5. 如权利要求1所述的方法，其中，所述至少一个供电芯片包括主供电芯片和备用供电芯片，所述主供电通路和所述备用供电通路共用所述主供电芯片以及同一个供电端口，所述当主供电通路异常时，按照预设规则将所述供电设备从主供电通路切换到备用供电通路包括：
    当所述主供电芯片上的所有主供电通路供电异常时，按照预设规则将所述供电设备从所述主供电芯片切换到所述备用供电芯片。
  6. 如权利要求1-5任一项所述方法，其中，在供电设备中设置一条主供电通路和至少一条备用供电通路时，为所述主供电通路和所述备用供电通路设置相同的供电信息。
  7. 一种POE系统中的供电设备，包括供电通路、至少一个供电芯片和至少一个供电端口；
    所述供电通路包括一条主供电通路和至少一条备用供电通路，所述主供电通路和所述至少一条备用供电通路从至少一个所述供电芯片到达同一供电端 口；
    所述备用供电通路设置为，当主供电通路供电异常时，为主供电通路的受电设备供电。
  8. 如权利要求7所述的设备，其中，所述至少一个供电端口包括第一供电端口和第二供电端口；
    所述主供电通路从所述至少一个供电芯片到达所述第一供电端口，所述备用供电通路从所述至少一个供电芯片经过所述第二供电端口到达所述第一供电端口。
  9. 如权利要求8所述的设备，其中，所述主供电通路和所述至少一条备用供电通路使用同一供电芯片。
  10. 如权利要求8所述的设备，所述至少一个供电芯片包括第一供电芯片和第二供电芯片，所述主供电通路从所述第一供电芯片到达所述第一供电端口，所述至少一个备用供电通路中中的至少一个从所述第二供电芯片经过所述第二供电端口到达所述第一供电端口。
  11. 如权利要求7所述的设备，所述至少一个供电芯片包括主供电芯片和备用供电芯片，所述主供电通路和所述备用供电通路共用所述主供电芯片以及同一个供电端口，所述备用供电芯片设置为，当所述主供电芯片供电异常时，为所述主供电芯片的受电设备供电。
  12. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1-6任一所述的方法。
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