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1. 发明申请

US20130148109A1 METHOD AND SYSTEM FOR DETECTING FIBER FAULT IN PASSIVE OPTICAL NETWORK 有权
标题翻译：用于检测被动光网络中光纤故障的方法和系统
公开(公告)号：US20130148109A1
公开(公告)日：2013-06-13
申请号：US13818937
申请日：2011-06-27
申请人： Jinsong Bei , Jidong Xu , Jie Su , Jianxin Lu
发明人： Jinsong Bei , Jidong Xu , Jie Su , Jianxin Lu
IPC分类号： G01N21/958
CPC分类号： G01N21/958 , G01M11/3109 , G01M11/3136 , H04B10/071 , H04B10/272 , H04J14/0282 , H04J14/0295
摘要： The disclosure provides a method and a system for detecting a fiber fault in a Passive Optical Network (PON). The system comprises an optical path detection device, a Wavelength Division Multiplexing (WDM) coupler, a wavelength selection coupler, a branch fiber selector and a wavelength selection router. The detection system is attached to an original PON system, without influencing the operation of the original system while performing the detection. With the disclosure, the problem of being unable to determine whether there is a fault in a branch fiber due to the loss of an optical path detection reflection signal is solved, the branch fiber with a fault can be quickly located and fixed, thus the operational and maintenance costs of an operator are reduced.
摘要翻译：本公开提供了一种用于检测无源光网络（PON）中的光纤故障的方法和系统。该系统包括光路检测装置，波分复用（WDM）耦合器，波长选择耦合器，分支光纤选择器和波长选择路由器。检测系统连接到原始PON系统，而不影响原始系统的操作，同时执行检测。通过公开，解决了由于光路检测反射信号的损失而无法确定分支光纤是否存在故障的问题，具有故障的分支光纤可以快速定位和固定，因此可操作并减少操作员的维护成本。

2. 发明授权

US09036138B2 Method and system for detecting fiber fault in passive optical network 有权
标题翻译：无源光网络光纤故障检测方法及系统
公开(公告)号：US09036138B2
公开(公告)日：2015-05-19
申请号：US13818937
申请日：2011-06-27
申请人： Jinsong Bei , Jidong Xu , Jie Su , Jianxin Lu
发明人： Jinsong Bei , Jidong Xu , Jie Su , Jianxin Lu
IPC分类号： G01N21/00 , H04B17/00 , G01N21/958 , G01M11/00 , H04B10/071 , H04B10/272 , H04J14/02
CPC分类号： G01N21/958 , G01M11/3109 , G01M11/3136 , H04B10/071 , H04B10/272 , H04J14/0282 , H04J14/0295
摘要： The disclosure provides a method and a system for detecting a fiber fault in a Passive Optical Network (PON). The system comprises an optical path detection device, a Wavelength Division Multiplexing (WDM) coupler, a wavelength selection coupler, a branch fiber selector and a wavelength selection router. The detection system is attached to an original PON system, without influencing the operation of the original system while performing the detection. With the disclosure, the problem of being unable to determine whether there is a fault in a branch fiber due to the loss of an optical path detection reflection signal is solved, the branch fiber with a fault can be quickly located and fixed, thus the operational and maintenance costs of an operator are reduced.
摘要翻译：本公开提供了一种用于检测无源光网络（PON）中的光纤故障的方法和系统。该系统包括光路检测装置，波分复用（WDM）耦合器，波长选择耦合器，分支光纤选择器和波长选择路由器。检测系统连接到原始PON系统，而不影响原始系统的操作，同时执行检测。通过公开，解决了由于光路检测反射信号的损失而无法确定分支光纤是否存在故障的问题，具有故障的分支光纤可以快速定位和固定，因此可操作并减少操作员的维护成本。

3. 发明申请

US20080267628A1 Passive Optical Network System Based on a Wavelength Protection and Protecting Backup Method Thereof 有权
标题翻译：基于波长保护的无源光网络系统及其保护备份方法
公开(公告)号：US20080267628A1
公开(公告)日：2008-10-30
申请号：US11912973
申请日：2005-04-29
申请人： Mingsheng Li , Jinsong Bei
发明人： Mingsheng Li , Jinsong Bei
IPC分类号： H04J14/02
CPC分类号： H04Q11/0067 , H04B10/032 , H04B10/2755 , H04J14/0226 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/028 , H04J14/0282 , H04J14/0283 , H04J14/0291 , H04Q2011/0016 , H04Q2011/0081
摘要： The present invention discloses a passive optical network system based on wavelength protection and the protection backup method thereof. It comprises an optical line terminal (OLT) with two interface circuits, two trunk lines, an optical splitter network, multiple branch lines and optical network units (ONU), each of which is with two interface circuits. The two interface circuits of the OLT transmit downlink optical signals with different wavelengths, while the two interface circuits of the ONU transmit uplink optical signals with different wavelengths. Each trunk line is set with a wavelength division multiplexing (WDM) device and it can only pass the uplink and downlink signals of the connected interface circuits. Each branch line includes a branch optical fiber and a WDM device that is used to transmit two downlink signals to the corresponding interface circuits respectively and meanwhile transmit uplink signals from the two interface circuits as well, so as to form two active/backup bidirectional optical paths between the corresponding interface circuits of the OLT and the ONU. The cost of setting up the system in the present invention is low, but the system can provide hot backup protection for the trunk optical fiber and the OLT.
摘要翻译：本发明公开了一种基于波长保护的无源光网络系统及其保护备份方法。它包括一个具有两个接口电路的光线路终端（OLT），两个中继线，一个光分路器网络，多个分支线路和光网络单元（ONU），每个都有两个接口电路。 OLT的两个接口电路传输不同波长的下行光信号，而ONU的两个接口电路传输不同波长的上行光信号。每个中继线设置有波分复用（WDM）设备，只能通过连接的接口电路的上行链路和下行链路信号。每条支线包括分支光纤和WDM设备，用于分别向对应的接口电路发送两个下行链路信号，同时从两个接口电路传输上行链路信号，从而形成两个主备双向光路在OLT的对应接口电路和ONU之间。在本发明中设置系统的成本很低，但是系统可以为中继光纤和OLT提供热备份保护。

4. 发明授权

US07634160B2 Passive optical network system based on a wavelength protection and protecting backup method thereof 有权
标题翻译：基于波长保护的无源光网络系统及其备份方法
公开(公告)号：US07634160B2
公开(公告)日：2009-12-15
申请号：US11912973
申请日：2005-04-29
申请人： Mingsheng Li , Jinsong Bei
发明人： Mingsheng Li , Jinsong Bei
IPC分类号： G02B6/28
CPC分类号： H04Q11/0067 , H04B10/032 , H04B10/2755 , H04J14/0226 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/028 , H04J14/0282 , H04J14/0283 , H04J14/0291 , H04Q2011/0016 , H04Q2011/0081
摘要： The present invention discloses a passive optical network system based on wavelength protection and the protection backup method thereof. It comprises an optical line terminal (OLT) with two interface circuits, two trunk lines, an optical splitter network, multiple branch lines and optical network units (ONU), each of which is with two interface circuits. The two interface circuits of the OLT transmit downlink optical signals with different wavelengths, while the two interface circuits of the ONU transmit uplink optical signals with different wavelengths. Each trunk line is set with a wavelength division multiplexing (WDM) device and it can only pass the uplink and downlink signals of the connected interface circuits. Each branch line includes a branch optical fiber and a WDM device that is used to transmit two downlink signals to the corresponding interface circuits respectively and meanwhile transmit uplink signals from the two interface circuits as well, so as to form two active/backup bidirectional optical paths between the corresponding interface circuits of the OLT and the ONU. The cost of setting up the system in the present invention is low, but the system can provide hot backup protection for the trunk optical fiber and the OLT.
摘要翻译：本发明公开了一种基于波长保护的无源光网络系统及其保护备份方法。它包括一个具有两个接口电路的光线路终端（OLT），两个中继线，一个光分路器网络，多个分支线路和光网络单元（ONU），每个都有两个接口电路。 OLT的两个接口电路传输不同波长的下行光信号，而ONU的两个接口电路传输不同波长的上行光信号。每个中继线设置有波分复用（WDM）设备，只能通过连接的接口电路的上行链路和下行链路信号。每条支线包括分支光纤和WDM设备，用于分别向对应的接口电路发送两个下行链路信号，同时从两个接口电路传输上行链路信号，从而形成两个主备双向光路在OLT的对应接口电路和ONU之间。在本发明中设置系统的成本很低，但是系统可以为中继光纤和OLT提供热备份保护。

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