WO2017177646A1 - 一种多路反向馈电的智能电源管理方法及系统 - Google Patents

一种多路反向馈电的智能电源管理方法及系统 Download PDF

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WO2017177646A1
WO2017177646A1 PCT/CN2016/102800 CN2016102800W WO2017177646A1 WO 2017177646 A1 WO2017177646 A1 WO 2017177646A1 CN 2016102800 W CN2016102800 W CN 2016102800W WO 2017177646 A1 WO2017177646 A1 WO 2017177646A1
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state
working
cpu
backfeed
power
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PCT/CN2016/102800
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French (fr)
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刘新峰
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烽火通信科技股份有限公司
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications

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  • the invention relates to the field of multi-channel backfeeding, and particularly relates to a method and system for intelligent power management of multi-channel backfeeding.
  • FTTH fiber to the home
  • the main difficulties for operators to fully deploy FTTH networks are as follows: 1. For non-new construction In the region, the perforation of the optical fiber and the indoor wiring are difficult to implement; 2. The installation of the indoor optical fiber requires professional skills, and the professional must be sent to the door; 3. The labor cost of the installation and maintenance workers is increasing.
  • FTTDP fiber-to-distribution point
  • FTTDP fiber-to-distribution point
  • FTTDP it can be further divided into FTTCabinet (fiber to the transfer box), FTTBuilding (fiber to the building), FTTC (fiber to the curb).
  • the fiber access signal is usually converted into an Ethernet signal, a DSL signal, or a G.fast (ultra-high speed digital subscriber line) signal through a DPU device (Distributed Point Unit), DPU.
  • Equipment is typically installed on junction boxes, corridors or utility poles.
  • the device that communicates with the DPU device is called the Customer Premise Equipment (CPE).
  • the CPE is connected to the Internet access device (such as the user's computer or mobile phone).
  • the CPE is usually located in the user's home.
  • the DPU device is back-fed, that is, the DPU is in the vicinity of the CPE or in the CPE.
  • the back-feeding device is placed, and the CPE supplies power to the DPU device.
  • the voltage and current through the copper wire need to be limited because the cable overheating between the CPE and the DPU device may damage the insulating material and shorten the expected life of the external insulating layer.
  • the voltage needs to be controlled within the safe voltage range, and the cable between the DPU device and the CPE is usually a network cable or telephone line for signal transmission, and the current that can be transmitted is small. Therefore, the power provided by each back feed for the DPU device is limited to a certain range; and the DPU device usually has 4 channels, 8 channels, 16 channels, 32 channels, or even 48 channels, all of which consume a lot of power.
  • the power of the 1G or a few CPE backfeeds cannot make the DPU equipment work.
  • the technical problem solved by the present invention is to ensure the power required for the ongoing service in the DPU device.
  • the invention can intelligently manage the power required for each service in the DPU device, not only reduces power consumption, but also facilitates operator management and use.
  • the multi-channel back-feeding intelligent power management method provided by the present invention is applied to a DPU device, and the DPU device is connected to a plurality of CPEs; the DPU device and each CPE pass each back feed.
  • the power receiving module communicates; the multi-channel backfeed intelligent power management method includes the following steps:
  • All powered backfeed modules send a backfeed status indication signal to the CPU of the DPU device, and all unpowered backfeed modules send a no backfeed status indication signal to the CPU;
  • the output power of the powered back feed module is used as the working power, and proceeds to step B;
  • the CPU uses the working power supply to put the service corresponding to all the powered back feed modules into a working state, and the service that is set to the working state runs with the working power;
  • the service corresponding to the unpowered backfeed module is set to the non-working state, and the process goes to step C;
  • step A the output power of the powered back feed module is used as the working power
  • the CPU of the DPU device is powered on by the working power
  • the CPU will all the paths of the DPU device.
  • the business is placed in a non-working state.
  • the specific process of using the output power of the back-feed module of the power supply as the working power source is: storing and converting the output power of the powered back feed module into a suitable CPU Working power.
  • the non-working state includes a de-enabled state, a standby state, a low-power state, an idle state, an unpowered state, and an unreceived state;
  • the working state in step B includes enabling State and normal state.
  • the specific process of using the output power of all the powered back feed modules as the working power source in step A is: storing the output power of all the powered back feed modules, and respectively Transformed into working power for CPU and business.
  • the back feed state indication signal is high level in step A, and the no back feed state indication signal is low level.
  • the specific process of setting the service corresponding to all the powered back feed modules to the working state in step B is: if the service is in a non-working state, the service is switched to work.
  • the specific process of setting the service corresponding to all the unpowered back feed modules to the non-working state is as follows: if the service is in the working state, the service is switched to the non-working state.
  • the invention provides a multi-channel backfeed intelligent power management system based on the above method, the system includes a back feed state indicating unit disposed in each back feed module, a service working state switching unit disposed on the CPU, and an alarm unit disposed on the DPU device;
  • the back feed state indicating unit is configured to: when the back feed module receives power, send a back feed status indication signal to the CPU of the DPU device; when the back feed module is not powered, send the reverse direction to the CPU Feed status indication signal;
  • the service working state switching unit is configured to: put the service corresponding to all the powered back feed modules into a working state; and set the service corresponding to all the unpowered back feed modules to a non-working state;
  • the alarm unit is configured to generate an alarm when all the road services of the DPU are not back fed.
  • the system further includes a power-on initialization module disposed on the CPU, configured to: use the output power of the powered back-feed module as the working power source, and start the CPU by using the working power supply. Put all the services of the DPU device into a non-working state.
  • the system further includes an energy storage module, configured to: store the output power of the powered back feed module, and convert the power to a working power source suitable for the CPU and the service.
  • the present invention Compared with the DPU device in the prior art, in which one or a few CPEs are all fed back, the present invention only puts the corresponding service into a working state when the back feed module is powered, when the back feed When the electrical module is not receiving power, the corresponding service is placed in a non-working state. Therefore, the present invention can intelligently manage the power required for each service in the DPU device, not only reduces the power consumption, but also reduces the power of the DPU when the one or a few CPEs are back fed.
  • the CPE service is easy for operators to manage and use.
  • FIG. 1 is a schematic diagram of connection of an FTTDP application scenario in the prior art
  • FIG. 2 is a schematic diagram of implementing multi-channel backfeeding by a DPU device according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for managing an intelligent power supply of multiple reverse feeds according to an embodiment of the present invention.
  • an intelligent power management method for multiple reverse feeds in an embodiment of the present invention is applied to a DPU device, and a DPU device is connected to a plurality of CPEs; as shown in FIG. 2, the DPU device and each CPE are shown. Each is communicated by one back feed power receiving module.
  • the multi-channel backfeed intelligent power management method includes the following steps:
  • the DPU device prepares to store and convert the output power of the powered back feed module to the working power required by the CPU (central processing unit) of the DPU device; the CPU starts up with the working power supply, and the CPU pairs Basically initialize the services of all the roads, and put all the services of the DPU equipment into a non-working state, and go to S2.
  • the non-operational state in S1 includes Disable, Standby, Low Power, Idle, No power, Only RX, and the like.
  • All powered backfeed modules send a high-level backfeed state indication signal to the CPU's GIPO (General Purpose Input Output) (eg, 101, 103 in Figure 2 and 105); all unpowered backfeed modules send low level no backfeed status indication signals to the GIPO of the CPU.
  • GIPO General Purpose Input Output
  • All powered backfeed modules eg, 201, 202, and 205 in Figure 2 Store and convert to a working power supply suitable for the CPU, and a business power supply suitable for the business, go to S3.
  • the CPE corresponding to the reverse feed module and the PSE Power Sourcing Equipment
  • the CPE has a service requirement, and the reverse feed module receives power, and then sends a reverse The feed indication signal; if the CPE corresponding to the back feed module and its PSE are in a power off state, the CPE has no service demand, and the back feed module sends no back feed indication signal.
  • the CPE corresponding to the reverse feed module and the PSE Power Sourcing Equipment
  • the reason for storing the output power in S2 is that the GPIO on the CPU can be designed as an IO input query or an interrupt for programming. However, regardless of the IO input query mode or the interrupt mode, the CPU takes time to execute the instruction. Therefore, the device needs to be designed for a short time.
  • Energy storage module Since the CPU execution speed and the speed of the bus are getting higher and higher, the energy storage module usually designs a larger capacitor to meet the switching requirement, and in an extreme case, the energy storage battery can be placed.
  • the GPIO of the CPU sets the service corresponding to all the powered back feed modules (ie, the back feed service) to the working state through the service control channel, and the working state includes Enable. Normal, normal, the service that is in the working state is operated by the service working power; the service corresponding to all unpowered backfeed modules (ie, services that are not fed back) is placed in a non-working state. Go to S4.
  • the specific process of setting the service corresponding to all the powered back feed modules in S3 is: if the service is in a non-working state, the service is switched to the working state; in S3, all unpowered
  • the specific process of setting the service corresponding to the back feed module to the non-working state is: if the service is in the working state, the service is switched to the non-working state.
  • the service control signal (such as 102, 104, 106, and 107 in FIG. 2) needs to be sent to the service object, and the service control object is usually PHY (Physical Layer) and AFE (analog). Front end), DSP (Digital Signal Processing, digital signal processing), LINE DRIVER (line drive), etc.
  • the transmission interface of the service control signal includes GPIO, SPI (Serial Peripheral Interface), I2C bus (Inter-Integrated Circuit) interface, HPI (HOST PORT INTERFACE, one communication with the host) Parallel interface), PCI-E (PCI Express, local bus interface), etc., which enable the service control object to perform corresponding state transitions through level changes or command words, thereby reducing the power consumption of the system.
  • SPI Serial Peripheral Interface
  • I2C bus Inter-Integrated Circuit
  • HPI HOST PORT INTERFACE, one communication with the host) Parallel interface
  • PCI-E PCI Express, local bus interface
  • S4 It is determined whether all the road services of the DPU device have no backfeed, and if so, an alarm is generated and ends, otherwise, S2 to S4 are repeatedly executed.
  • the multiplexed back-feeding intelligent power management system based on the above method in the embodiment of the present invention is the same as that described in the claims, and is not described herein.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明公开了一种多路反向馈电的智能电源管理方法及系统，涉及多路反向馈电领域。该方法的步骤为：A、所有受电的反向馈电模块向DPU设备的CPU发送有反向馈电状态指示信号，所有未受电的反向馈电模块向CPU发送无反向馈电状态指示信号；将所有受电的反向馈电模块的输出电源作为工作电源；B、CPU利用工作电源，将与所有受电的反向馈电模块对应的业务置为工作状态，置为工作状态的业务利用工作电源运行；将与所有未受电的反向馈电模块对应的业务置为非工作状态。本发明能够保证DPU设备中正在进行的业务所需的电源，以此实现智能管理DPU设备中每路业务所需的电源，不仅降低了电能消耗，而且便于运营商管理和使用。

Description

一种多路反向馈电的智能电源管理方法及系统 技术领域
本发明涉及多路反向馈电领域，具体涉及一种多路反向馈电的智能电源管理方法及系统。
背景技术
随着宽带用户对接入速率的要求越来越高，FTTH(fiber to the home，光纤到户)发展非常迅速，运营商全面部署FTTH网络存在的主要困难为以下3点：1、对于非新建区域，光纤的穿孔入户和户内布线难以实施；2、户内光纤的成端安装需要专业技能，必须派专业人员上门；3、安装、维护工人的人力成本呈现逐年上升的常态。
针对上述难点，光纤到小区、FTTDP(光纤到分配点)的接入方式已呈同步蓬勃发展的形势。对于FTTDP而言，进一步可以分为FTTCabinet(光纤到交接箱)、FTTBuilding(光纤到楼)、FTTC(fiber to the curb，光纤到路边)。
参见图1所示，FTTDP应用时，通常通过DPU设备(Distributed Point Unit，分配点单元)将光纤接入信号转换为以太网信号、DSL信号或者G.fast(超高速数字用户线)信号，DPU设备一般安装于交接箱、楼道或电线杆上。与DPU设备进行通信的设备称为CPE(Customer Premise Equipment，客户终端设备)，CPE再连接上网设备(例如用户电脑、手机等)，CPE一般位于用户家庭中。FTTDP进行组网部署时，由于DPU设备的安装位置取电困难，因此通常对DPU设备进行反向馈电，即接入用户在CPE附近位置或者CPE内 部放置反向馈电装置，由CPE为DPU设备进行供电。
但是，对DPU进行反向馈电存在以下缺陷：
反向馈电时，因为CPE和DPU设备之间的电缆过热可能损坏绝缘材料，缩短外部绝缘层的预期寿命，所以需要限制通过铜线的电压和电流。为了安全，电压需要控制在安全电压的范围下，而DPU设备和CPE之间的电缆通常为用于信号传输的网线或电话线，能够传输的电流较小。因此，每路反向馈电为DPU设备提供的功率被限制到一定的范围内；而DPU设备通常有4路、8路、16路、32路甚至48路，全部工作起来功耗很大，1路或少数几路CPE反向馈电的功率无法使DPU设备全部工作。
发明内容
针对现有技术中存在的缺陷，本发明解决的技术问题为：保证DPU设备中正在进行的业务所需的电源。本发明能够智能管理DPU设备中每路业务所需的电源，不仅降低了电能消耗，而且便于运营商管理和使用。
为达到以上目的，本发明提供的多路反向馈电的智能电源管理方法，应用于DPU设备上，DPU设备与若干路CPE相连；DPU设备与每一路CPE之间各通过1个反向馈电受电模块通信；所述多路反向馈电的智能电源管理方法，包括以下步骤：
A、所有受电的反向馈电模块向DPU设备的CPU发送有反向馈电状态指示信号，所有未受电的反向馈电模块向CPU发送无反向馈电状态指示信号；将所有受电的反向馈电模块的输出电源作为工作电源，转到步骤B；
B、CPU利用工作电源，将与所有受电的反向馈电模块对应的业务置为工作状态，置为工作状态的业务利用工作电源运行；将与所有 未受电的反向馈电模块对应的业务置为非工作状态，转到步骤C；
C、判断DPU设备的所有路业务是否均无反向馈电，若是，产生告警并结束，否则重复执行步骤A至步骤C。
在上述技术方案的基础上，步骤A之前还包括以下步骤：将受电的反向馈电模块的输出电源作为工作电源，DPU设备的CPU利用工作电源上电启动，CPU将DPU设备的所有路的业务置为非工作状态。
在上述技术方案的基础上，所述将受电的反向馈电模块的输出电源作为工作电源的具体流程为：将受电的反向馈电模块的输出电源进行储存、并转化为适合CPU的工作电源。
在上述技术方案的基础上，所述非工作状态包括去使能状态、备用状态、低功耗状态、空闲状态、无电状态和只收不发状态；步骤B中所述工作状态包括使能状态和普通状态。
在上述技术方案的基础上，步骤A中将所有受电的反向馈电模块的输出电源作为工作电源的具体流程为：将所有受电的反向馈电模块的输出电源进行储存，并分别转化为适合CPU和业务的工作电源。
在上述技术方案的基础上，步骤A中所述有反向馈电状态指示信号为高电平，所述无反向馈电状态指示信号为低电平。
在上述技术方案的基础上，步骤B中所述将与所有受电的反向馈电模块对应的业务置为工作状态的具体流程为：若该业务处于非工作状态，将该业务切换为工作状态；步骤B所述将与所有未受电的反向馈电模块对应的业务置为非工作状态的具体流程为：若该业务处于工作状态，将该业务切换为非工作状态。
本发明提供的基于上述方法的多路反向馈电的智能电源管理系统，该系统包括设置于每个反向馈电模块的反向馈电状态指示单元、 设置于CPU上的业务工作状态切换单元、以及设置于DPU设备上的告警单元；
反向馈电状态指示单元用于：反向馈电模块受电时，向DPU设备的CPU发送有反向馈电状态指示信号；反向馈电模块未受电时，向CPU发送无反向馈电状态指示信号；
业务工作状态切换单元用于：将与所有受电的反向馈电模块对应的业务置为工作状态；将与所有未受电的反向馈电模块对应的业务置为非工作状态；
告警单元用于：当DPU设备的所有路业务是否均无反向馈电时，产生告警。
在上述技术方案的基础上，该系统还包括设置于CPU上的上电初始化模块，其用于：将受电的反向馈电模块的输出电源作为工作电源，利用工作电源上电启动CPU，将DPU设备的所有路的业务置为非工作状态。
在上述技术方案的基础上，该系统还包括储能模块，其用于：将受电的反向馈电模块的输出电源进行储存，并分别转化为适合CPU和业务的工作电源。
与现有技术相比，本发明的优点在于：
与现有技术中1路或少数几路CPE反向馈时全部工作的DPU设备相比，本发明只有当反向馈电模块受电时才将对应的业务置为工作状态，当反向馈电模块未受电时，将对应的业务置为非工作状态。因此，本发明能够智能管理DPU设备中每路业务所需的电源，不仅降低了电能消耗，而且当一路或少数几路CPE进行反向馈电时，DPU设备的关闭未进行反向馈电的CPE业务，便于运营商管理和使用。
附图说明
图1为现有技术中FTTDP应用场景的连接示意图；
图2为本发明实施例中DPU设备实现多路反向馈电的原理图；
图3为本发明实施例中多路反向馈电的智能电源管理方法的流程图。
图中：有反向馈电状态指示信号-(101、103、105)，业务控制信号(102、104、106、107)，输出电源-(201、202、205)。
具体实施方式
以下结合附图及实施例对本发明作进一步详细说明。
参见图1所示，本发明实施例中的多路反向馈电的智能电源管理方法，应用于DPU设备上，DPU设备与若干路CPE相连；参见图2所示，DPU设备与每一路CPE之间各通过1个反向馈电受电模块通信。在此基础上，参见图3所示，所述多路反向馈电的智能电源管理方法，包括以下步骤：
S1：DPU设备准备，将受电的反向馈电模块的输出电源进行储存、并转换为适合DPU设备的CPU(中央处理器)所需的工作电源；CPU利用工作电源上电启动，CPU对所有路的业务进行基本初始化，将DPU设备所有路的业务置为非工作状态，转到S2。
S1中的非工作状态包括去使能(Disable)、备用(Standby)、低功耗(Low power)、空闲(Idle)、无电(No power)、只收不发(Only RX)等。
S2：所有受电的反向馈电模块向CPU的GIPO(General Purpose Input Output，通用输入/输出接口)发送高电平的有反向馈电状态指示信号(例如图2中的101、103和105)；所有未受电的反向馈电模块向CPU的GIPO发送低电平的无反向馈电状态指示信号。将所有受电的反向馈电模块的输出电源(例如图2中的201、202和205) 进行储存、并转化为适合CPU的工作电源、以及适合业务的业务工作电源，转到S3。
S2中若与反向馈电模块对应的CPE及其PSE(Power Sourcing Equipment，POE供电设备)处于供电状态，则该CPE有业务需求，该反向馈电模块会受电，进而发送有反向馈电指示信号；若与反向馈电模块对应的CPE及其PSE处于断电状态，则该CPE无业务需求，该反向馈电模块发送无反向馈电指示信号。
S2中储存输出电源的原因为：CPU上的GPIO可以设计成IO输入查询或者中断进行编程，但不论是IO输入查询方式还是中断方式，CPU执行指令都需要时间，因此，设备上需要设计短时储能模块。由于现在CPU执行速度和总线的速度越来越高，因此储能模块通常设计较大一些的电容即可满足切换要求，极端情况下可以安放储能电池来满足。
S3：利用CPU工作电源，CPU的GPIO通过业务控制通道将与所有受电的反向馈电模块对应的业务(即反向馈电的业务)置为工作状态，工作状态包括使能(Enable)、普通等(Normal)，置为工作状态的业务利用业务工作电源运行；将与所有未受电的反向馈电模块对应(即未反向馈电的业务)的业务置为非工作状态，转到S4。
S3中将与所有受电的反向馈电模块对应的业务置为工作状态的具体流程为：若该业务处于非工作状态，将该业务切换为工作状态；S3中将与所有未受电的反向馈电模块对应的业务置为非工作状态的具体流程为：若该业务处于工作状态，将该业务切换为非工作状态。
S3中通过业务控制通道控制业务时，需要向业务对象发送业务控制信号(例如图2中的102、104、106和107)，业务控制对象通常为PHY(Physical Layer，物理层)、AFE(模拟前端)、DSP(Digital  Signal Processing，数字信号处理)、LINE DRIVER(线路驱动)等。业务控制信号的传输接口包括GPIO、SPI(Serial Peripheral Interface、串行外设接口)、I2C总线(Inter－Integrated Circuit，两线式串行总线)接口、HPI(HOST PORT INTERFACE、一个与主机通信的并行接口)、PCI-E(PCI Express，局部总线接口)等，它们能够通过电平变化或者命令字，使业务控制对象进行对应的状态转换，达到降低系统工作功耗的效果。
S4：判断DPU设备的所有路业务是否均无反向馈电，若是，产生告警并结束，否则重复执行S2至S4。
本发明实施例中的基于上述方法的多路反向馈电的智能电源管理系统，与权利要求书中的描述相同，在此不做赘述。
本发明不局限于上述实施方式，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围之内。本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims (10)

  1. 一种多路反向馈电的智能电源管理方法，应用于DPU设备上，DPU设备与若干路CPE相连；DPU设备与每一路CPE之间各通过1个反向馈电受电模块通信；其特征在于：所述多路反向馈电的智能电源管理方法，包括以下步骤：
    A、所有受电的反向馈电模块向DPU设备的CPU发送有反向馈电状态指示信号，所有未受电的反向馈电模块向CPU发送无反向馈电状态指示信号；将所有受电的反向馈电模块的输出电源作为工作电源，转到步骤B；
    B、CPU利用工作电源，将与所有受电的反向馈电模块对应的业务置为工作状态，置为工作状态的业务利用工作电源运行；将与所有未受电的反向馈电模块对应的业务置为非工作状态，转到步骤C；
    C、判断DPU设备的所有路业务是否均无反向馈电，若是，产生告警并结束，否则重复执行步骤A至步骤C。
  2. 如权利要求1所述的多路反向馈电的智能电源管理方法，其特征在于，步骤A之前还包括以下步骤：将受电的反向馈电模块的输出电源作为工作电源，DPU设备的CPU利用工作电源上电启动，CPU将DPU设备的所有路的业务置为非工作状态。
  3. 如权利要求2所述的多路反向馈电的智能电源管理方法，其特征在于：所述将受电的反向馈电模块的输出电源作为工作电源的具体流程为：将受电的反向馈电模块的输出电源进行储存、并转化为适合CPU的工作电源。
  4. 如权利要求2所述的多路反向馈电的智能电源管理方法，其特征在于：所述非工作状态包括去使能状态、备用状态、低功耗状态、空闲状态、无电状态和只收不发状态；步骤B中所述工作状态包括 使能状态和普通状态。
  5. 如权利要求1至4任一项所述的多路反向馈电的智能电源管理方法，其特征在于：步骤A中将所有受电的反向馈电模块的输出电源作为工作电源的具体流程为：将所有受电的反向馈电模块的输出电源进行储存，并分别转化为适合CPU和业务的工作电源。
  6. 如权利要求1至4任一项所述的多路反向馈电的智能电源管理方法，其特征在于：步骤A中所述有反向馈电状态指示信号为高电平，所述无反向馈电状态指示信号为低电平。
  7. 如权利要求1至4任一项所述的多路反向馈电的智能电源管理方法，其特征在于：步骤B中所述将与所有受电的反向馈电模块对应的业务置为工作状态的具体流程为：若该业务处于非工作状态，将该业务切换为工作状态；步骤B所述将与所有未受电的反向馈电模块对应的业务置为非工作状态的具体流程为：若该业务处于工作状态，将该业务切换为非工作状态。
  8. 一种基于权利要求1至7任一项所述方法的多路反向馈电的智能电源管理系统，其特征在于：该系统包括设置于每个反向馈电模块的反向馈电状态指示单元、设置于CPU上的业务工作状态切换单元、以及设置于DPU设备上的告警单元；
    反向馈电状态指示单元用于：反向馈电模块受电时，向DPU设备的CPU发送有反向馈电状态指示信号；反向馈电模块未受电时，向CPU发送无反向馈电状态指示信号；
    业务工作状态切换单元用于：将与所有受电的反向馈电模块对应的业务置为工作状态；将与所有未受电的反向馈电模块对应的业务置为非工作状态；
    告警单元用于：当DPU设备的所有路业务是否均无反向馈电时， 产生告警。
  9. 如权利要求8所述的多路反向馈电的智能电源管理系统，其特征在于：该系统还包括设置于CPU上的上电初始化模块，其用于：将受电的反向馈电模块的输出电源作为工作电源，利用工作电源上电启动CPU，将DPU设备的所有路的业务置为非工作状态。
  10. 如权利要求8所述的多路反向馈电的智能电源管理系统，其特征在于：该系统还包括储能模块，其用于：将受电的反向馈电模块的输出电源进行储存，并分别转化为适合CPU和业务的工作电源。
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