WO2012009892A1 - 一种终端设备及其掉电告警上报的方法 - Google Patents

一种终端设备及其掉电告警上报的方法 Download PDF

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Publication number
WO2012009892A1
WO2012009892A1 PCT/CN2010/077892 CN2010077892W WO2012009892A1 WO 2012009892 A1 WO2012009892 A1 WO 2012009892A1 CN 2010077892 W CN2010077892 W CN 2010077892W WO 2012009892 A1 WO2012009892 A1 WO 2012009892A1
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Prior art keywords
power failure
signal
failure alarm
module
user function
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PCT/CN2010/077892
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English (en)
French (fr)
Inventor
曹啡
芦国强
高艳旭
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中兴通讯股份有限公司
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Publication of WO2012009892A1 publication Critical patent/WO2012009892A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/16Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1694Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J2203/00Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057Operations, administration and maintenance [OAM]
    • H04J2203/006Fault tolerance and recovery

Definitions

  • Terminal device and method for reporting power failure alarm thereof
  • the invention belongs to the technical field of passive optical networks, and particularly relates to a terminal device and a method for reporting the power failure alarm. Background technique
  • a Passive Optical Network (PON) system, whether it is a Gigabit-Capable Passive Optical Network (GPON) or an Ethernet Passive Optical Network (EPON)
  • PON Passive Optical Network
  • the central office equipment needs to accurately record the various states of the terminal equipment.
  • One of the important items is that the terminal equipment is powered off.
  • the terminal equipment is responsible for the optical fiber to the last time after the power failure occurs.
  • the central office device sends a power failure alarm message. After receiving the message, the central office device can not only record the cause of the communication interruption of the terminal device, but also avoid generating other unnecessary alarms. Through the power failure alarm, the operation and maintenance personnel can distinguish whether the offline device is broken or powered off, which provides an important basis for network maintenance.
  • PON equipment is equipped with large-capacity energy storage capacitors.
  • the large-capacity energy-storing capacitors occupy too much space.
  • communication equipment is increasingly developing to micro, especially when the size and cost of new terminal equipment are strictly required.
  • the use of large-capacity storage capacitors is not conducive to miniaturization, but in the case where large-capacity storage capacitors are not installed, the device power-down alarm cannot be effectively performed.
  • the main technical problem to be solved by the present invention is to provide a terminal device and a method for reporting the power failure alarm, which can reliably reach the central office device without installing a large-capacity storage capacitor. Report the power failure alarm.
  • the present invention provides a method for reporting a power failure alarm of a terminal device, where the terminal device includes a voltage detection module, a user function module, and a power failure alarm module, and the method includes the following steps:
  • the voltage detecting module compares the input voltage with a predetermined reference voltage, and if the input voltage is lower than the predetermined reference voltage, generates a control signal to stop the operation of the user function module;
  • the power failure alarm module generates a power failure alarm signal, and sends a power failure alarm signal to the central office device in the allocated time slot.
  • control signal includes a reset signal and a switch signal
  • the reset signal is used to reset the user function module having the reset input terminal to stop working
  • the switch signal is used to control the user function module without the reset input terminal, and the power switch is turned off. It stopped working.
  • the power failure alarm module generates a power failure alarm signal, which is: generating an power failure alarm data packet by using an interrupt processing program, clearing the current transmission buffer data area, and writing the power failure alarm data packet to the transmission buffer data area.
  • the user function module having the reset input terminal includes: an Ethernet switch circuit, an Ethernet physical layer circuit, a general telephone interface circuit, and a wireless LAN circuit; the user function module without the reset input includes: a universal serial bus circuit and a coaxial Cable TV signal circuit.
  • the power-off alarm signal is repeatedly sent to the central office device until the central office device is completely powered down.
  • the invention also provides a terminal device, comprising a voltage detecting module, a user function module, and a power failure alarm module; wherein:
  • the voltage detecting module is configured to compare the input voltage with a predetermined reference voltage, and if the input voltage is lower than the predetermined reference voltage, generate a control signal and send the signal to the user function module to stop the operation of the user function module;
  • the power failure alarm module is connected to the voltage detection module, and is configured to generate a power failure alarm signal. And sending a power failure alarm signal to the central office device in the allocated time slot.
  • control signal generated by the voltage detecting module includes a reset signal and a switch signal, and the reset signal is used to reset the user function module having the reset input terminal to stop working; the switch signal is used to control the user function module without the reset input terminal, and is turned off. Its power switch stops it.
  • the power failure alarm module is further configured to generate a power failure alarm data packet by using an interrupt processing program, clear the current transmission buffer data area, and write the power failure alarm data packet into the transmission buffer data area to generate a power failure alarm. signal.
  • the user function module having the reset input terminal comprises an Ethernet switch circuit, an Ethernet physical layer circuit, a common telephone interface circuit, and a wireless LAN circuit; and the user function module without the reset input terminal comprises a universal serial bus circuit and a coaxial cable television signal. Circuit.
  • the power failure alarm module is further configured to repeatedly send the power failure alarm signal to the central office equipment until the central office equipment is completely powered down.
  • the beneficial effects of the present invention are: comparing the input voltage with the predetermined reference voltage to determine the start of the power-down process compared with the prior art; stopping the operation of the user function module by the control signal, thereby greatly reducing the power consumption of the user function circuit , greatly reducing the system's demand for the storage capacitor capacity, ensuring that the power-down alarm signal has enough time to reliably send to the central office equipment.
  • FIG. 1 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a method for reporting a power failure alarm of a terminal device according to an embodiment of the present invention. detailed description
  • the main functional modules of the PON terminal device include: a PON protocol processing function module, a PON optical module, and a user function module;
  • the PON protocol processing function module performs mutual conversion between the user data packet and the PON protocol message.
  • the PON optical module performs mutual conversion between the optical signal and the electrical signal.
  • the user function module provides a service interface to the user.
  • the commonly used user function modules include user function circuits: an Ethernet switching circuit and an Ethernet physical layer circuit, the function of which is to provide an Ethernet data service to the user; a common telephone interface circuit, its function Is to provide users with telephone access services; Universal Serial Bus circuit, its function is to provide users with USB interface services; wireless LAN circuit, its function is to provide users with wireless LAN access services; coaxial cable TV signal circuit, its function It is to provide users with cable TV access services.
  • These classes are common and commonly used user function modules, but are not limited to these types of user function modules.
  • the Ethernet switching circuit, the Ethernet physical layer circuit, the ordinary telephone interface circuit, the wireless local area network circuit and the like have a reset input end; the universal serial bus circuit feeding part, the coaxial cable television signal circuit has no reset input end.
  • the PON terminal equipment is powered by the standard 12V voltage. Inside the device, 12V is converted to 3.3V, 1.8V, 1.2V and other low voltages through a voltage converter for each functional module in the terminal equipment.
  • the method for reporting the power failure alarm of the PON terminal device specifically includes the following steps: Step S201: After the PON terminal works normally, the voltage detecting module compares the input voltage (generally 12V) with a predetermined reference voltage, if the input voltage Above the predetermined reference voltage, the PON terminal equipment maintains a normal working state; when the user turns off the power or the grid is powered off, the input voltage begins to fall. When the input voltage is lower than the predetermined reference voltage, the flow proceeds to step S202.
  • Step S202 The voltage detecting module sends a control signal to the user function module to stop the work of the user function module to save power consumption. Specifically, if the user function circuit used by the user function module has a reset input terminal, the process proceeds to step S203; if the user function circuit does not have a reset input terminal, the process proceeds to step S204.
  • Step S203 The voltage detection module sends a control signal to the user function module having the reset input end, that is, the user function circuit used by the user function module has a reset input end, and is a reset signal. It is used to reset the user function module and stop it, greatly reducing the power it consumes.
  • Step S204 The control signal sent by the voltage detecting module to the user function module without the reset input end (ie, the user function circuit used by the user function module has no reset input end) is a switch signal, and is used to complete the power supply of the user function module to stop it. Working, the power consumed by the user function module is reduced to zero.
  • Step S205 The voltage detecting module sends an interrupt signal to the power-down alarm module (the PON protocol processing chip in this embodiment) to immediately enter the interrupt processing program.
  • the power-down alarm module uses the interrupt handler to clear the current transmit buffer data area, and writes the power-down alarm data packet to the transmit buffer data area to generate a power-down alarm signal. Then wait for the arrival of the next transmission slot allocated by the central office equipment.
  • Step S206 When the next sending time slot arrives, the power failure alarm module sends the power failure alarm signal to the central office device through the optical fiber.
  • the power-down alarm module repeatedly writes the power-down alarm data packet to the transmit buffer data area to generate a power-down alarm signal, and continues to wait for the next transmission time slot allocated by the central office equipment.
  • Step S207 Repeat step S206, that is, resend the power-down alarm signal to the central office device until the device is completely powered off. To ensure that the central office device reliably receives the power-down alarm sent by the interrupt device, the step S204 is preferably repeated three times. .
  • the present invention provides a terminal device and a method for reporting the power failure alarm. Since a large-capacity storage capacitor is not required, the strict requirements on the size and cost of the home PON terminal device can be met. Types of PON terminals have a wide range of application scenarios and practical value. As the requirements for the operation, maintenance, and management of the telecommunication network continue to increase, reporting the power failure alarm has been or may be required to be implemented on other types of terminal devices, such as digital subscriber loops, cable modems, etc., of course, the idea and implementation method of the present invention. Not limited to PON terminals.

Abstract

本发明公开了一种终端设备及其掉电告警上报的方法,其中方法包括步骤:电压检测模块将输入电压和预定参考电压进行比较,如果输入电压低于预定参考电压,则产生控制信号,停止用户功能模块的工作;掉电告警模块产生掉电告警信号,并在分配的时隙内将掉电告警信号发送给局端设备。与现有技术相比,本申请通过将输入电压和预定参考电压比较确定掉电过程的开始,通过控制信号停止用户功能模块工作,从而大大减小了用户功能电路对电能的消耗,大大降低了系统对储能电容容量的需求,保证了掉电告警信号有足够的时间可靠地发送到局端设备。

Description

一种终端设备及其掉电告警上报的方法 技术领域
本发明属于无源光网络技术领域, 具体涉及一种终端设备及其掉电告 警上报的方法。 背景技术
在无源光网络 ( PON, Passive Optical Network ) 系统中, 不论是吉比 特无源光网络( GPON, Gigabit-Capable Passive Optical Network )还是以太 无源光网络( EPON, Ethernet Passive Optical Network ), 出于运行维护和设 备管理的需要, 局端设备需要准确记录终端设备的各种状态, 其中一个重 要的项目是终端设备断电, 终端设备负责在发生断电后, 在最后的时间内, 通过光纤向局端设备发出掉电告警消息。 局端设备收到该消息后, 不仅可 以记录下该终端设备通讯中断的原因, 而且可以避免产生其它没有必要的 告警。 通过断电告警, 运行维护人员可以区分出设备离线的原因是断纤还 是断电, 为网络的维护提供重要的依据。
目前的 PON设备都安装有大容量储能电容, 大容量储能电容占用空间 太大, 为了适应未来发展趋势, 通讯设备日益向微型发展, 尤其涉及新型 终端设备尺寸、 成本都有严格要求时, 大容量储能电容的使用不利于微型 化, 但是在没有安装大容量储能电容的情况下, 设备掉电告警不能有效的 进行。 发明内容
本发明要解决的主要技术问题是, 提供一种终端设备及其掉电告警上 报的方法, 在没有安装大容量储能电容的情况下, 能够可靠地向局端设备 上报掉电告警。
为达到上述目的, 本发明的技术方案是这样实现的:
本发明提供了一种终端设备掉电告警上报的方法, 所述终端设备包括 电压检测模块、 用户功能模块、 掉电告警模块, 所述方法包括步骤:
电压检测模块将输入电压和预定参考电压进行比较, 如果输入电压低 于预定参考电压, 则产生控制信号, 停止用户功能模块的工作;
掉电告警模块产生掉电告警信号, 并在分配的时隙内将掉电告警信号 发送给局端设备。
进一步地, 所述控制信号包括复位信号和开关信号, 复位信号用于复 位具有复位输入端的用户功能模块, 使其停止工作; 开关信号用于控制没 有复位输入端的用户功能模块, 关闭其电源开关使其停止工作。
进一步地, 所述掉电告警模块产生掉电告警信号具体为: 利用中断处 理程序生成掉电告警数据包, 清空当前的发送緩存数据区, 并将掉电告警 数据包写入发送緩存数据区。
进一步地, 具有复位输入端的用户功能模块包括: 以太网交换电路、 以太网物理层电路、 普通电话接口电路、 和无线局域网电路; 没有复位输 入端的用户功能模块包括: 通用串行总线电路和同轴电缆电视信号电路。
进一步地, 重复发送掉电告警信号发送给局端设备, 直至局端设备完 全掉电。
本发明还提供了一种终端设备, 包括电压检测模块、 用户功能模块、 和掉电告警模块; 其中:
所述电压检测模块, 用于将输入电压和预定参考电压比较, 如果输入 电压低于预定参考电压, 则产生控制信号、 并发送给用户功能模块, 停止 用户功能模块的工作;
所述掉电告警模块与所述电压检测模块连接, 用于产生掉电告警信号, 并在分配的时隙内将掉电告警信号发送给局端设备。
进一步地, 所述电压检测模块产生的控制信号包括复位信号和开关信 号, 复位信号用于复位具有复位输入端的用户功能模块使其停止工作; 开 关信号用于控制没有复位输入端的用户功能模块, 关闭其电源开关使其停 止工作。
进一步地, 所述掉电告警模块, 还用于利用中断处理程序生成掉电告 警数据包, 清空当前的发送緩存数据区, 并将掉电告警数据包写入发送緩 存数据区, 生成掉电告警信号。
进一步地, 具有复位输入端的用户功能模块包括以太网交换电路、 以 太网物理层电路、 普通电话接口电路、 无线局域网电路; 没有复位输入端 的用户功能模块包括通用串行总线电路、 同轴电缆电视信号电路。
进一步地, 所述掉电告警模块, 还用于重复发送掉电告警信号发送给 局端设备, 直至局端设备完全掉电。
本发明的有益效果是: 与现有技术相比, 将输入电压和预定参考电压 比较确定掉电过程的开始; 通过控制信号停止用户功能模块工作, 从而大 大减小了用户功能电路对电能的消耗, 大大降低了系统对储能电容容量的 需求, 保证了掉电告警信号有足够的时间可靠地发送到局端设备。 附图说明
图 1为本发明实施例提供的一种终端设备原理框图;
图 2为本发明实施例提供的一种终端设备掉电告警上报的方法流程图。 具体实施方式
下面通过具体实施方式结合附图对本发明作进一步详细说明。
如图 1所示, 以 PON终端设备为例, PON终端设备的主要功能模块包 括: PON协议处理功能模块、 PON光模块和用户功能模块; 其中: PON协议处理功能模块完成用户数据包和 PON协议报文的互相转换。 PON光模块完成光信号和电信号的相互转换。
用户功能模块给用户提供服务接口, 常用的用户功能模块包括的用户 功能电路有: 以太网交换电路和以太网物理层电路, 其功能是给用户提供 以太网数据服务; 普通电话接口电路, 其功能是给用户提供电话接入服务; 通用串行总线电路,其功能是给用户提供 USB接口服务;无线局域网电路, 其功能是给用户提供无线局域网接入服务; 同轴电缆电视信号电路, 其功 能是给用户提供有线电视接入服务。 这几类是比较常见和常用的用户功能 模块, 但不限于这几种用户功能模块。 需要说明的是, 以太网交换电路、 以太网物理层电路、 普通电话接口电路、 无线局域网电路等具有复位输入 端; 通用串行总线电路馈电部分, 同轴电缆电视信号电路没有复位输入端。
PON终端设备,尤其是家用型终端设备釆用标准规定的 12V电压供电。 设备内部, 通过电压变换器将 12V转换为 3.3V、 1.8V、 1.2V等低电压, 供 终端设备内各功能模块工作。
如图 2所示, PON终端设备掉电告警上报的方法具体包括以下步骤: 步骤 S201 : PON终端正常工作后, 电压检测模块将输入电压(一般为 12V ) 与预定参考电压进行比较, 若输入电压高于预定参考电压, PON 终 端设备保持正常的工作状态; 当用户关电或电网停电时, 输入电压开始跌 落。 当输入电压低于预定参考电压的时候, 进入步骤 S202。
步骤 S202: 电压检测模块发送控制信号给用户功能模块停止用户功能 模块的工作以节省对电能的消耗。 具体的, 若该用户功能模块使用的用户 功能电路有复位输入端, 则进入步骤 S203; 若该用户功能电路没有复位输 入端, 则进入步骤 S204。
步骤 S203 : 电压检测模块向具有复位输入端的用户功能模块(即用户 功能模块使用的用户功能电路有复位输入端)发送的控制信号为复位信号, 用于复位该用户功能模块, 使其停止工作, 大大降低其消耗的功率。
步骤 S204: 电压检测模块向没有复位输入端的用户功能模块(即用户 功能模块使用的用户功能电路没有复位输入端)发送的控制信号为开关信 号, 用于完毕该用户功能模块的电源, 使其停止工作, 则该用户功能模块 消耗的功率降低为零。
步骤 S205: 电压检测模块向掉电告警模块(本实施例中为 PON协议处 理芯片)发出中断信号, 使其立即进入中断处理程序。 掉电告警模块利用 中断处理程序清空当前的发送緩存数据区, 并将掉电告警数据包写入发送 緩存数据区, 生成掉电告警信号。 然后等待局端设备分配的下一个发送时 隙的到来。
步骤 S206: 当下一个发送时隙到来的时候, 掉电告警模块将掉电告警 信号通过光纤发送给局端设备。 掉电告警模块重复将掉电告警数据包写入 发送緩存数据区, 生成掉电告警信号, 继续等待局端设备分配的下一个发 送时隙的到来。
步骤 S207: 重复步骤 S206、 即重发发送掉电告警信号给局端设备, 直 至设备彻底掉电, 为保证局端设备可靠的接受到该中断设备发出的掉电告 警, S204步骤优选重复 3遍。
综上所述, 本发明提供了一种终端设备及其掉电告警上报的方法, 由 于不需要大容量的储能电容, 可以满足家用型 PON终端设备对尺寸和成本 的严格要求, 在这种类型的 PON终端上有着很广的应用场景和实用价值。 随着电信网络运行维护与管理要求的不断提升, 上报掉电告警已经或者可 能被要求在其它类型的终端设备上实现, 如数字用户环路、 电缆调制解调 器等, 当然本发明的思想和实现方法并不只局限于 PON终端。
以上内容是结合具体的实施方式对本发明所作的进一步详细说明, 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的 普通技术人员来说, 在不脱离本发明构思的前提下, 还可以做出若干简单 推演或替换, 都应当视为属于本发明的保护范围。

Claims

权利要求书
1、 一种终端设备掉电告警上报的方法, 其特征在于, 所述终端设备包 括电压检测模块、 用户功能模块、 掉电告警模块, 所述方法包括步骤: 电压检测模块将输入电压和预定参考电压进行比较, 如果输入电压低 于预定参考电压, 则产生控制信号, 停止用户功能模块的工作;
掉电告警模块产生掉电告警信号, 并在分配的时隙内将掉电告警信号 发送给局端设备。
2、 如权利要求 1所述的方法, 其特征在于, 所述控制信号包括复位信 号和开关信号, 复位信号用于复位具有复位输入端的用户功能模块, 使其 停止工作; 开关信号用于控制没有复位输入端的用户功能模块, 关闭其电 源开关使其停止工作。
3、 如权利要求 1所述的方法, 其特征在于, 所述掉电告警模块产生掉 电告警信号具体为: 利用中断处理程序生成掉电告警数据包, 清空当前的 发送緩存数据区, 并将掉电告警数据包写入发送緩存数据区。
4、 如权利要求 2所述的方法, 其特征在于, 具有复位输入端的用户功 能模块包括: 以太网交换电路、 以太网物理层电路、 普通电话接口电路、 和无线局域网电路; 没有复位输入端的用户功能模块包括: 通用串行总线 电路和同轴电缆电视信号电路。
5、 如权利要求 1至 4中任一项所述的方法, 其特征在于, 重复发送掉 电告警信号发送给局端设备, 直至局端设备完全掉电。
6、 一种终端设备, 其特征在于, 包括电压检测模块、 用户功能模块、 和掉电告警模块; 其中:
所述电压检测模块, 用于将输入电压和预定参考电压比较, 如果输入 电压低于预定参考电压, 则产生控制信号、 并发送给用户功能模块, 停止 用户功能模块的工作; 所述掉电告警模块与所述电压检测模块连接, 用于产生掉电告警信号, 并在分配的时隙内将掉电告警信号发送给局端设备。
7、 如权利要求 6所述的终端设备, 其特征在于, 所述电压检测模块产 生的控制信号包括复位信号和开关信号, 复位信号用于复位具有复位输入 端的用户功能模块使其停止工作; 开关信号用于控制没有复位输入端的用 户功能模块, 关闭其电源开关使其停止工作。
8、 如权利要求 6所述的终端设备, 其特征在于, 所述掉电告警模块, 还用于利用中断处理程序生成掉电告警数据包, 清空当前的发送緩存数据 区, 并将掉电告警数据包写入发送緩存数据区, 生成掉电告警信号。
9、 如权利要求 7所述的终端设备, 其特征在于, 具有复位输入端的用 户功能模块包括以太网交换电路、 以太网物理层电路、 普通电话接口电路、 无线局域网电路; 没有复位输入端的用户功能模块包括通用串行总线电路、 同轴电缆电视信号电路。
10、 如权利要求 6至 9中任一项所述的终端设备, 其特征在于, 所述 掉电告警模块, 还用于重复发送掉电告警信号发送给局端设备, 直至局端 设备完全掉电。
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