WO2012095055A2 - 一种远供系统及远端电源 - Google Patents

一种远供系统及远端电源 Download PDF

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Publication number
WO2012095055A2
WO2012095055A2 PCT/CN2012/071834 CN2012071834W WO2012095055A2 WO 2012095055 A2 WO2012095055 A2 WO 2012095055A2 CN 2012071834 W CN2012071834 W CN 2012071834W WO 2012095055 A2 WO2012095055 A2 WO 2012095055A2
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Prior art keywords
module
power supply
remote
self
remote power
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PCT/CN2012/071834
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English (en)
French (fr)
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WO2012095055A3 (zh
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刘洋
涂勇
王剑伟
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华为技术有限公司
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Priority to PCT/CN2012/071834 priority Critical patent/WO2012095055A2/zh
Priority to CN201280000461.8A priority patent/CN102742109B/zh
Publication of WO2012095055A2 publication Critical patent/WO2012095055A2/zh
Publication of WO2012095055A3 publication Critical patent/WO2012095055A3/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks

Definitions

  • the invention belongs to the technical field of remote power supply, and particularly relates to a remote supply system and a remote power supply.
  • the optical-incoming copper retreat strategy of replacing copper with fiber optics has become a trend worldwide, providing high-bandwidth access by reducing the distance between the central office and the copper cable between the users.
  • the optical access copper retreat strategy such as digital subscriber line access multiplexer (Digital Subscriber Line Access).
  • DSLAM Digital Subscriber Line Access
  • This kind of deployment mode enhances the bandwidth of the line, and also causes some new features of the broadband access device, including miniaturization, large number, wide distribution, and complicated installation scenarios of the broadband access device, which make the broadband access device
  • the power-taking scenarios are becoming more and more complex, and even become a key bottleneck for the deployment of broadband access devices.
  • the remote supply system is used to solve the problem that the broadband access device is difficult to access under the optical access copper retreat strategy.
  • the remote supply system utilizes the idle copper twisted pair cable appearing in the process of light entering the copper to realize the long-distance transmission and reception function of the electric energy.
  • FIG. 1 shows the architecture of the remote supply system provided by the prior art. After the central office power supply modulates the -48V DC output from the equipment room to the high-voltage DC power that is suspended and isolated from the ground, the high-voltage DC power is transmitted to the remote power source through the copper twisted pair cable; the remote power supply protects and isolates the high-voltage DC power. After pressing, it is used by the corresponding load device.
  • the IEC 60950-21 standard defines two standard formats for the remote supply systems provided by the prior art: the RFT-C system and the RFT-V system.
  • the RFT-V system is mainly used in North America, its voltage is limited, the current can be relatively large;
  • RFT-C system is mainly used in Europe, its current is limited, the voltage can be relatively high, before the power supply, the central office will be started.
  • the self-test communication between the power supply and the remote power supply is incompatible with the self-test communication protocol of different manufacturers. For example, the central power supply of the BPS manufacturer and the remote power supply of the Mitra manufacturer cannot communicate.
  • the remote power supply of the RFT-V system has good versatility and is easy to customize, while the remote power supply of the RFT-C system is privately owned by the manufacturer due to the self-test communication protocol, and needs to be separately customized for different manufacturers.
  • the remote power supply of different self-test communication protocols has high customization cost; and because the remote power supply needs to be customized according to different manufacturers, the overall configuration of the outdoor integrated equipment is large, which is not conducive to product normalization and customers. spare parts.
  • the object of the present invention is to provide a remote power supply for a remote supply system, which aims to solve the problem that the remote supply system provided by the prior art integrates a customized remote power supply into an outdoor integrated device, which has high customization cost and makes outdoor
  • the large number of integrated equipment configurations is not conducive to product normalization and customer spare parts.
  • the present invention is implemented in the form of a remote power supply for a remote system, the remote power supply comprising:
  • Replaceable module for implementing the difference between remote power supplies of various vendors
  • a common module that connects the replaceable modules for implementing functions other than the functions of the remote power supply that differ between the various manufacturers.
  • Another object of the present invention is to provide a remote access system including a central power source and a remote power source electrically connected to the central office power source, the remote power source being the remote power supply system as described above Remote power supply.
  • the remote power supply of the remote supply system abstracts a portion that may be different between the manufacturers as a detachable and replaceable replaceable module, which may be customized according to the power supply system or according to the manufacturer.
  • the public module 12 is combined to complete the function of the remote power source, the customization cost is lower than the prior art, and the common module can be integrated in the load device or the outdoor integrated device independent of the load device without increasing the device configuration of the device.
  • the quantity is convenient for product management and customer spare parts, which is conducive to the promotion and use of products.
  • FIG. 1 is an architectural diagram of a remote supply system provided by the prior art
  • FIG. 2 is a structural diagram of a remote power supply of a remote supply system provided by the present invention.
  • Figure 3 is a structural view of the replaceable module and the common module of Figure 2 in the first embodiment of the present invention
  • FIG. 4 is another structural diagram of the replaceable module and the common module of FIG. 2 in the first embodiment of the present invention
  • Figure 5 is a structural view showing the replaceable module and the common module of Figure 2 in the second embodiment of the present invention.
  • Figure 6 is another structural diagram of the replaceable module and the common module of Figure 2 in the second embodiment of the present invention.
  • Figure 7 is still another structural view of the replaceable module and the common module of Figure 2 in the second embodiment of the present invention.
  • Figure 8 is still another structural diagram of the replaceable module and the common module of Figure 2 in the second embodiment of the present invention.
  • the remote power supply of the remote access system provided by the embodiment of the present invention abstracts a part that may be different between the vendors as a replaceable module, and abstracts the other parts into a common module.
  • Fig. 2 shows the structure of the remote power source 1 of the remote system provided by the present embodiment. For the convenience of description, only the parts related to the present embodiment are shown.
  • the remote power supply 1 includes a replaceable module 11 for implementing at least one function of the remote power supply, where the function is generally a function of different remote power sources, such as a self-test communication function and a fault detection function. , a line diagnostic function, a security protection function, and the like; and a common module 12 for implementing a power supply common function in the remote power source other than the function implemented by the replaceable module 11, the common module 12 having a universal interface
  • the interface is connected to the replaceable module 11, and the physical connection to the replaceable module 11 can also be broken through the interface. Further, after disconnecting the physical connection of the common module 12 and the replaceable module 11, the replaceable module 11 can be removed and then replaced with a replaceable module having other functions.
  • the function of the difference between different remote power sources may be a specific self-test communication function between the remote power source and the corresponding central power source developed by different manufacturers, or other functions differently implemented by different vendors, for example, : fault detection function, line diagnosis function, safety protection function, etc.; Other common functions besides the differences between vendors include basic voltage control, current control, or power output.
  • the common module 12 can be integrated in the load device or the outdoor integrated device independent of the load device without increasing the number of the whole device configuration, facilitating product management and customer spare parts. Conducive to the promotion and use of products.
  • the structures of the replaceable module 11 and the common module 12 may differ according to the RFT-V system and/or the RFT-C system.
  • FIG. 3 shows the first aspect of the present invention.
  • a structure of the replaceable module 11 and the common module 12 of Fig. 2 of Fig. 2 for the convenience of explanation, only the parts related to the first embodiment of the present invention are shown.
  • the replaceable module 11 may include: a self-test communication module 111, configured to implement a self-test between the remote power source and the corresponding central office power source, and after receiving the self-test, receive the corresponding central office through multiple power supply cables.
  • the common module 12 may include a first combining module 121 for combining the DC power signals received by the self-test communication module 111 and outputting the DC power conversion module 122 for outputting the first combining module 121. After the DC power signal is converted into the DC power signal required by the corresponding load device, it is output to the corresponding load device.
  • the power supply cable may be an opto-electric composite cable or an existing copper twisted pair cable.
  • the logarithm of the copper twisted pair depends on the power required by the remote power source, the transmission distance between the remote power source and the central power source, and the remote power source. Factors such as the transmission line diameter between the central office power supplies. Before the specific configuration, you need to calculate whether the line number can meet the requirements according to the actual scenario. In order to improve system reliability, you need to increase the redundant design of the power cable.
  • the replaceable module 11 may further include: a first filtering lightning protection module (not shown) connected to the self-test communication module 111 for use in the RFT-C system.
  • a first filtering lightning protection module (not shown) connected to the self-test communication module 111 for use in the RFT-C system.
  • the DC power signal received by the self-test communication module 111 is filtered and output.
  • the first combining module 121 combines and outputs the DC power signal outputted by the first filtering lightning protection module.
  • the remote power supply of the remote system may not include the replaceable module 11, but only a simple connection is needed to establish an electrical path between the first combining module 121 and the corresponding central power source. can.
  • FIG. 4 shows the first embodiment of the present invention, and the Another structure of the replacement module 11 and the common module 12, for the convenience of explanation, only the parts related to the first embodiment of the present invention are shown.
  • the replaceable module 11 may further include: a switching module 112, configured to switch the self-test communication module 111 or the first combining module 121 to establish and power the corresponding central office according to different power supply systems.
  • the electrical path between Specifically, when applied to the RFT-C system, the switching module 112 performs circuit switching to connect to the self-test communication module 111, and establishes an electrical path between the self-test communication module 111 and the corresponding central power source; when applied to the RFT- In the V system, the switching module 112 performs circuit switching to connect to the first combining module 121 to establish an electrical path between the first combining module 121 and the corresponding central power source.
  • the replaceable module 11 may further include: a first filtering lightning protection module (not shown) connected to the self-test communication module 111, for use in the RFT-C
  • the DC power signal received by the self-test communication module 111 is filtered and processed and output to the first combining module 121; and/or placed between the switching module 112 and the first combining module 121, and sequentially connected and switched.
  • the second filtering lightning protection module is configured to filter and output the DC power signal sent by the corresponding central power source via the switching module 112 in the RFT-V system; the isolation module is configured to output the second filtering lightning protection module.
  • the interference signal in the DC power signal is isolated and output to the first combining module 121.
  • Fig. 5 shows a structure of the replaceable module 11 and the common module 12 of Fig. 2 in the second embodiment of the present invention, and for convenience of explanation, only the portion related to the second embodiment of the present invention is shown.
  • the replaceable module 11 may include: a self-test communication module 111, configured to implement a self-test between the remote power source and the corresponding central power source, and after passing the self-test, pass multiple The power supply cable receives the DC power signal sent by the corresponding local power source; the second combination module 113 is configured to combine the DC power signals received by the self-test communication module 111 and output the signals.
  • the common module 12 may include a DC-DC conversion module 121 for converting the DC power signal outputted by the second combining module 113 into a DC power signal required by the corresponding load device, and outputting the signal to the corresponding load device.
  • the power supply cable may be an optoelectric composite cable or an existing copper twisted pair.
  • the logarithm of the copper twisted pair depends on the power required by the remote power source, the transmission distance between the remote power source and the central power source, and the remote power source. Factors such as the transmission line diameter between the central office power supplies. Before the specific configuration, you need to calculate whether the line number can meet the requirements according to the actual scenario. In order to improve system reliability, you need to increase the redundant design of the power cable.
  • the replaceable module 11 may further include: a connection self-test communication module.
  • the first filtering lightning protection module (not shown) of the 111 is configured to filter the DC power signal received by the self-test communication module 111 and output the signal to the second combining module 113 in the RFT-C system.
  • the DC power signal sent by the central office power supply may be combined by the second combining module 113, and then the remote power supply is implemented by the self-test communication module 111. After the self-test is performed with the corresponding central office power supply, and after the self-test passes, the self-test communication module 111 outputs the combined DC power supply signal.
  • Another structure of the replaceable module 11 and the common module 12 of Fig. 2 at this time in the second embodiment of the present invention is shown in Fig. 6.
  • FIG. 7 shows the second embodiment of the present invention.
  • the replaceable module 11 may further include: a switching module 112, configured to switch the self-test communication module 111 or the second combining module 113 to establish and power the corresponding central office according to different power supply systems.
  • the electrical path between When applied to the RFT-C system, the switching self-test communication module 111 establishes an electrical path with the corresponding central office power supply; when applied to the RFT-V system, the switching second combining module 113 establishes and correspondingly the central office Electrical path between power supplies.
  • the replaceable module 11 may further include: a connection self-test communication module
  • the first filtering lightning protection module 111 (not shown) is configured to filter the DC power supply signal received by the self-test communication module 111 to the second combining module 113 in the RFT-C system; And/or a second filtering lightning protection module (not shown) between the switching module 112 and the second combining module 113 and an isolation module (not shown).
  • the second filtering lightning protection module is configured to filter and output the DC power signal sent by the corresponding central power source via the switching module 112 in the RFT-V system; the isolation module is configured to output the second filtering lightning protection module.
  • the interference signal in the DC power signal is isolated and output to the second combining module 113.
  • the switching module 112 switches according to different systems.
  • the self-test communication module 111 realizes a self-test between the remote power source and the corresponding central office power source or outputs a combined DC power signal.
  • the embodiment of the present invention further provides a remote power supply system, including a central office power supply, and a remote power supply electrically connected to the central office power supply, where the remote power supply is specifically a remote power supply of the remote system as described above. .
  • the remote power supply of the remote access system abstracts a portion that may be different between the vendors as a detachable and replaceable replaceable module 11, which may be different according to the power supply system or according to the manufacturer.
  • Customization combined with the public module 12 to complete the function of the remote power supply, the customization cost is lower than the prior art, and the common module 12 can be integrated in the load device or the outdoor integrated device independent of the load device without adding equipment.
  • the number of complete machine configurations is convenient for product management and customer spare parts, which is conducive to the promotion and use of products.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

本发明适用于远供电源技术领域，提供了一种远供系统及远端电源。其中的远端电源包括：可替换模块，用于实现远程电源的至少一种功能，所述功能包括自检通信功能、故障检测功能、线路诊断功能或安全保护功能；以及公共模块，用于实现远端电源中除所述可替换模块实现的功能以外的其它的电源通用功能，其中所述公共模块上具有通用接口，通过所述通用接口连接所述可替换模块，并且也能通过所述通用接口断开与所述可替换模块的物理连接；通过本发明可根据供电制式的不同或者根据厂商的不同而定制可替换模块，定制成本相对现有技术低，且公共模块可集成在负载设备或独立于负载设备的室外一体化设备中，而不会增加设备的整机配置数量，便于产品的管理和客户备件，利于产品的推广及使用。

Description

一种远供系统及远端电源 技术领域
本发明属于远供电源技术领域，尤其涉及一种远供系统及远端电源。
 背景技术
随着光线接入（Fiber To The x，FTTx）的发展，用光纤代替铜缆的光进铜退策略在全球范围内成为一种趋势，其通过缩短局端设备与用户之间铜缆的距离来提供高带宽接入。在光进铜退策略下，诸如数字用户线路接入复用器（Digital Subscriber Line Access Multiplexer，DSLAM）等宽带接入设备的布放趋势越来越靠近用户。该种布放方式在提升线路带宽的同时，也使得宽带接入设备产生了一些新的特点，包括宽带接入设备小型化、数量多、分布广、安装场景复杂，这些特点使得宽带接入设备的取电场景越来越复杂，甚至成为宽带接入设备部署的关键瓶颈。
一般地，采用远供系统解决光进铜退策略下宽带接入设备取电难的问题。该远供系统利用光进铜退过程中出现的闲置的铜缆双绞线，实现电能的远距离收发功能，如图1示出了现有技术提供的远供系统的架构。局端电源将机房输出的-48V直流电调制到对地悬浮隔离的高压直流电后，经铜缆双绞线将高压直流电远距离输送至远端电源；远端电源对该高压直流电进行保护隔离及降压后，供相应的负载设备使用。
IEC60950-21标准对现有技术提供的远供系统定义了两种标准制式：RFT-C制式和RFT-Ⅴ制式。其中，RFT-Ⅴ制式主要应用于北美地区，其电压受限，电流可以比较大；RFT-C制式主要应用于欧洲地区，其电流受限、电压可以比较高，在供电前，会启动局端电源与远端电源之间的自检通信，不同厂家的自检通信协议不兼容，例如，BPS厂家的局端电源与Mitra厂家的远端电源是不能实现通信的。
因此，现有技术提供的远供系统在具体实现时，需要定制远端电源，并将定制的远端电源集成到独立于负载设备的一室外一体化设备中，使得该一体化设备直接具备远供能力。该种定制方式下，RFT-Ⅴ制式的远端电源具有较好的通用性，易于定制，而RFT-C制式的远端电源由于自检通信协议为厂家私有，针对不同厂家，需分别定制具有不同自检通信协议的远端电源，定制成本高；且由于远端电源需根据厂商的不同而分别定制，使得室外一体化设备的整机配置数量较大，不利于产品的归一化和客户备件。
 技术问题
本发明的目的在于提供一种远供系统的远端电源，旨在解决现有技术提供的远供系统是将定制的远端电源集成到一室外一体化设备中，定制成本高、且使得室外一体化设备整机配置数量大，不利于产品归一化和客户备件的问题。
 技术解决方案
本发明是这样实现的，一种远供系统的远端电源，所述远端电源包括：
可替换模块，用于实现各厂商远端电源之间存在差异的功能；以及
一连接所述可替换模块的公共模块，用于实现远端电源中除所述各厂商之间存在差异的功能以外的其它功能。
本发明的另一目的在于，还提供了一种远供系统，包括一局端电源和与所述局端电源电连接的一远端电源，所述远端电源是如上所述的远供系统的远端电源。
 有益效果
由于本发明提供的远供系统的远端电源是将各厂商之间可能存在差异的部分抽象为可拆卸并可替换的可替换模块，其可根据供电制式的不同或者根据厂商的不同而定制，并结合公共模块12共同完成远端电源的功能，定制成本相对现有技术低，且公共模块可集成在负载设备或独立于负载设备的室外一体化设备中，而不会增加设备的整机配置数量，便于产品的管理和客户备件，利于产品的推广及使用。
 附图说明
图1是现有技术提供的远供系统的架构图；
图2是本发明提供的远供系统的远端电源的结构图；
图3是本发明第一实施例中，图2的可替换模块和公共模块的一种结构图；
图4是本发明第一实施例中，图2的可替换模块和公共模块的另一种结构图；
图5是本发明第二实施例中，图2的可替换模块和公共模块的一种结构图；
图6是本发明第二实施例中，图2的可替换模块和公共模块的另一种结构图；
图7是本发明第二实施例中，图2的可替换模块和公共模块的再一种结构图；
图8是本发明第二实施例中，图2的可替换模块和公共模块的再一种结构图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
针对现有技术的存在的问题，本发明实施例提供的远供系统的远端电源是将各厂商之间可能存在差异的部分抽象为一可替换模块，而将其它部分抽象为一公共模块。
图2示出了本实施例提供的远供系统的远端电源1的结构，为了便于说明，仅示出了与本实施例相关的部分。
本实施例提供远端电源1包括：可替换模块11，用于实现远程电源的至少一种功能，该功能一般是不同远端电源之间存在差异的功能，例如自检通信功能、故障检测功能、线路诊断功能、安全保护功能等；以及公共模块12，用于实现远端电源中除可替换模块11实现的功能以外的其它的电源通用功能，所述公共模块12上具有通用接口，通过所述接口进行连接所述可替换模块11，并且也可以通过所述接口断开与所述可替换模块11的物理连接。进一步地，在断开公共模块12与所述可替换模块11的物理连接后，可以移除所述可替换模块11，然后替换上具有其他功能的可替换模块。其中，不同远端电源之间存在差异的功能可以是不同厂商所制定的远端电源与相应局端电源之间的特定自检通信功能、或其它因厂商的不同而实现方式不同的功能，例如：故障检测功能、线路诊断功能、安全保护功能等; 除各厂商之间存在差异的功能以外的其它通用功能包括基本电压控制、电流控制或功率输出等。
由于是将各厂商之间可能存在差异的部分抽象为可拆卸并可替换的可替换模块11，其可根据供电制式的不同或者根据厂商的不同而定制，并结合公共模块12共同完成远端电源的功能，定制成本相对现有技术低，且公共模块12可集成在负载设备或独立于负载设备的室外一体化设备中，而不会增加设备的整机配置数量，便于产品的管理和客户备件，利于产品的推广及使用。
本实施例中，可替换模块11和公共模块12的结构可根据RFT-Ⅴ制式和/或RFT-C制式而不同。具体地，当各厂商远端电源之间存在差异的功能是远端电源与相应局端电源之间的自检通信功能时，在RFT-C制式下，如图3示出了本发明第一实施例中，图2的可替换模块11和公共模块12的一种结构，为了便于说明，仅示出了与本发明第一实施例相关的部分。
此时，可替换模块11可以包括：自检通信模块111，用于实现远端电源与相应局端电源之间的自检，并在自检通过后，通过多个供电线缆接收相应局端电源发送的直流电源信号。公共模块12可以包括：第一合路模块121，用于将自检通信模块111接收到的直流电源信号合路后输出；直流-直流变换模块122，用于将第一合路模块121输出的直流电源信号转换成相应负载设备所需的直流电源信号后，输出给相应的负载设备。
其中，供电线缆可以是光电复合缆或现有的铜缆双绞线。当供电线缆是现有的铜缆双绞线时，铜缆双绞线的对数取决于远端电源所需的功率、远端电源与局端电源之间的传输距离、远端电源与局端电源之间的传输线径等因素。在具体配置前，需根据实际场景核算线对数是否能够满足要求，且为了提高系统可靠性，需增加供电线缆的冗余设计。
此外，在本发明第一实施例该种结构中，可替换模块11还可以包括：连接自检通信模块111的第一滤波防雷模块（图中未示出），用于在RFT-C制式下，对自检通信模块111接收到的直流电源信号进行滤波处理后输出。此时，第一合路模块121是将第一滤波防雷模块输出的直流电源信号合路后输出。
在RFT-V制式下，远供系统的远端电源可以不包括可替换模块11，而只需进行简单的连线，以建立第一合路模块121与相应局端电源之间的电通路即可。
在本发明第一实施例提供的远供系统的远端电源同时应用于RFT-C制式与在RFT-Ⅴ制式的情况下，图4示出了本发明第一实施例中，图2的可替换模块11和公共模块12的另一种结构，为了便于说明，仅示出了与本发明第一实施例相关的部分。
此时，与图3所示不同，可替换模块11还可以包括：切换模块112，用于根据供电制式的不同，而切换自检通信模块111或第一合路模块121建立与相应局端电源之间的电通路。具体地，当应用于RFT-C制式下时，切换模块112进行电路切换以连通到自检通信模块111，建立自检通信模块111与相应局端电源之间的电通路；当应用于RFT-V制式下时，切换模块112进行电路切换以连通到第一合路模块121，建立第一合路模块121与相应局端电源之间的电通路。
同样地，在本发明第一实施例该种结构中，可替换模块11还可以包括：连接自检通信模块111的第一滤波防雷模块（图中未示出），用于在RFT-C制式下，对自检通信模块111接收到的直流电源信号进行滤波处理后输出给第一合路模块121；和/或置于切换模块112与第一合路模块121之间、顺次连接切换模块112的第二滤波防雷模块（图中未示出）和一隔离模块（图中未示出）。其中，第二滤波防雷模块用于在RFT-V制式下，对相应局端电源经切换模块112发送的直流电源信号进行滤波处理后输出；隔离模块用于对第二滤波防雷模块输出的直流电源信号中的干扰信号进行隔离后，输出给第一合路模块121。
图5示出了本发明第二实施例中，图2的可替换模块11和公共模块12的一种结构，为了便于说明，仅示出了与本发明第二实施例相关的部分。
具体地，在RFT-C制式下，可替换模块11可以包括：自检通信模块111，用于实现远端电源与相应局端电源之间的自检，并在自检通过后，通过多个供电线缆接收相应局端电源发送的直流电源信号；第二合路模块113，用于将自检通信模块111接收到的直流电源信号合路后输出。公共模块12可以包括：直流-直流变换模块121，用于将第二合路模块113输出的直流电源信号转换成相应负载设备所需的直流电源信号后，输出给相应的负载设备。
与本发明第一实施例相同，供电线缆可以是光电复合缆或现有的铜缆双绞线。当供电线缆是现有的铜缆双绞线时，铜缆双绞线的对数取决于远端电源所需的功率、远端电源与局端电源之间的传输距离、远端电源与局端电源之间的传输线径等因素。在具体配置前，需根据实际场景核算线对数是否能够满足要求，且为了提高系统可靠性，需增加供电线缆的冗余设计。
且与本发明第一实施例相同，在本发明第二实施例该种结构中，可替换模块11还可以包括：连接自检通信模块 111的第一滤波防雷模块（图中未示出），用于在RFT-C制式下，对自检通信模块111接收到的直流电源信号进行滤波处理后输出给第二合路模块113。
当然，在实际应用过程中，在RFT-C制式下，也可以先由第二合路模块113对局端电源发送的直流电源信号进行合路后，再由自检通信模块111实现远端电源与相应局端电源之间的自检，并在自检通过后，由自检通信模块111将合路后的直流电源信号输出。如图6示出了本发明第二实施例中，此时图2的可替换模块11和公共模块12的另一种结构。
在本发明第二实施例提供的远供系统的远端电源同时应用于RFT-C制式与在RFT-C制式的情况下，图7示出了本发明第二实施例中，图2的可替换模块11和公共模块12的再一种结构，为了便于说明，仅示出了与本发明第二实施例相关的部分。
此时，与图5所示不同，可替换模块11还可以包括：切换模块112，用于根据供电制式的不同，而切换自检通信模块111或第二合路模块113建立与相应局端电源之间的电通路。当应用于RFT-C制式下时，切换自检通信模块111建立与相应局端电源之间的电通路；当应用于RFT-V制式下时，切换第二合路模块113建立与相应局端电源之间的电通路。
同样地，在本发明第二实施例该种结构中，可替换模块11还可以包括：连接自检通信模块 111的第一滤波防雷模块（图中未示出），用于在RFT-C制式下，对自检通信模块111接收到的直流电源信号进行滤波处理后输出给第二合路模块113；和/或顺次连接在切换模块112与第二合路模块113之间的第二滤波防雷模块（图中未示出）和一隔离模块（图中未示出）。其中，第二滤波防雷模块用于在RFT-V制式下，对相应局端电源经切换模块112发送的直流电源信号进行滤波处理后输出；隔离模块用于对第二滤波防雷模块输出的直流电源信号中的干扰信号进行隔离后，输出给第二合路模块113。
同样地，在实际应用过程中，在RFT-C制式下，也可以先由第二合路模块113对局端电源发送的直流电源信号进行合路后，切换模块112再根据制式的不同，切换自检通信模块111实现远端电源与相应局端电源之间的自检或将合路后的直流电源信号输出。如图8示出了本发明第二实施例中，此时图2的可替换模块11和公共模块12的再一种结构。
本发明实施例还提供了一种远供系统，包括一局端电源，以及一与该局端电源电连接的远端电源，该远端电源具体是如上所述的远供系统的远端电源。
由于本发明实施例提供的远供系统的远端电源是将各厂商之间可能存在差异的部分抽象为可拆卸并可替换的可替换模块11，其可根据供电制式的不同或者根据厂商的不同而定制，并结合公共模块12共同完成远端电源的功能，定制成本相对现有技术低，且公共模块12可集成在负载设备或独立于负载设备的室外一体化设备中，而不会增加设备的整机配置数量，便于产品的管理和客户备件，利于产品的推广及使用。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种远供系统的远端电源，其特征在于，所述远端电源包括：
    可替换模块，用于实现远程电源的至少一种功能，所述功能包括自检通信功能、故障检测功能、线路诊断功能或安全保护功能；以及
    公共模块，用于实现远端电源中除所述可替换模块实现的功能以外的其它的电源通用功能，其中所述公共模块上具有通用接口，通过所述通用接口连接所述可替换模块，并且也能通过所述通用接口断开与所述可替换模块的物理连接。
  2. 如权利要求1所述的远供系统的远端电源，其特征在于，所述各厂商远端电源之间存在差异的功能是自检通信功能，所述可替换模块包括：自检通信模块，用于实现远端电源与相应局端电源之间的自检，并在自检通过后，通过多个供电线缆接收所述相应局端电源发送的直流电源信号；
    所述公共模块包括：第一合路模块，用于将所述自检通信模块接收到的所述直流电源信号合路后输出；直流-直流变换模块，用于将所述第一合路模块输出的直流电源信号转换成相应负载设备所需的直流电源信号后，输出给相应的负载设备。
  3. 如权利要求2所述的远供系统的远端电源，其特征在于，所述可替换模块还包括：
    连接所述自检通信模块的第一滤波防雷模块，用于在RFT-C制式下，对所述自检通信模块接收到的直流电源信号进行滤波处理后输出给所述第一合路模块。
  4. 如权利要求2所述的远供系统的远端电源，其特征在于，所述可替换模块还包括：
    切换模块，用于根据供电制式的不同，而切换所述自检通信模块或所述第一合路模块建立与所述相应局端电源之间的电通路。
  5. 如权利要求4所述的远供系统的远端电源，其特征在于，所述可替换模块还包括：
    连接所述自检通信模块的第一滤波防雷模块，用于在RFT-C制式下，对所述自检通信模块接收到的直流电源信号进行滤波处理后输出给所述第一合路模块；和/或
    置于所述切换模块与所述第一合路模块之间、顺次连接所述切换模块的第二滤波防雷模块和一隔离模块；所述第二滤波防雷模块用于在RFT-V制式下，对相应局端电源经所述切换模块发送的直流电源信号进行滤波处理后输出，所述隔离模块用于对所述第二滤波防雷模块输出的直流电源信号中的干扰信号进行隔离后，输出给所述第一合路模块。
  6. 如权利要求1所述的远供系统的远端电源，其特征在于，所述可替换模块包括：自检通信模块，用于实现远端电源与相应局端电源之间的自检，并在自检通过后，通过多个供电线缆接收相应局端电源发送的直流电源信号；第二合路模块，用于将所述自检通信模块接收到的所述直流电源信号合路后输出；
    所述公共模块包括：直流-直流变换模块，用于将所述第二合路模块输出的直流电源信号转换成相应负载设备所需的直流电源信号后，输出给相应的负载设备。
  7. 如权利要求6所述的远供系统的远端电源，其特征在于，所述可替换模块还包括：
    切换模块，用于根据供电制式的不同，切换所述自检通信模块或所述第二合路模块建立与所述相应局端电源之间的电通路。
  8. 如权利要求6所述的远供系统的远端电源，其特征在于，所述可替换模块还包括：
    连接所述自检通信模块的第一滤波防雷模块。
  9. 如权利要求2至8任一项所述的远供系统的远端电源，其特征在于，所述供电线缆是光电复合缆或铜缆双绞线。
  10. 一种远供系统，包括一局端电源和与所述局端电源电连接的一远端电源，其特征在于，所述远端电源是如权利要求1至8任一项所述的远供系统的远端电源。
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