CN106027144A - Method and system for positioning and identifying reflection phenomenon in optical fiber communication - Google Patents
Method and system for positioning and identifying reflection phenomenon in optical fiber communication Download PDFInfo
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- CN106027144A CN106027144A CN201610532583.1A CN201610532583A CN106027144A CN 106027144 A CN106027144 A CN 106027144A CN 201610532583 A CN201610532583 A CN 201610532583A CN 106027144 A CN106027144 A CN 106027144A
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- message
- terminal
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- optic communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
Abstract
The invention discloses a method and a system for positioning and identifying reflection phenomena in optical fiber communication. The optical line terminal comprises an OLT, an optical splitter and a plurality of terminals, wherein the optical splitter is respectively connected with the plurality of terminals through optical fiber pipelines, the optical splitter is connected with the OLT through the optical fiber pipelines, and the OLT is used for implementing the steps as follows: s1, receiving the message with terminal ID information, recording the key word information of the message; s2, when receiving the next message with the terminal ID information, checking whether the key word information of the message is consistent with the key word information in the step S1, and judging whether the terminal or the optical fiber pipeline corresponding to the terminal ID has a reflection phenomenon. The invention realizes the identification and positioning of the message with the reflection phenomenon by identifying the key information of the message in the optical fiber communication, and solves the problem that the terminal or the pipeline with the reflection phenomenon can not be accurately positioned in the prior art. The invention can be widely applied to various optical fiber communication systems.
Description
Technical field
The present invention relates to optical fiber transmission network field, particularly relate to positioning identifying method and the system of reflex in a kind of fiber optic communication.
Background technology
OLT:optical line terminal, optical line terminal, for connecting the terminal unit of fiber optic backbone.
ONU:Optical Network Unit, optical network unit.
LLID:Logical Link Identifier, logical links labelling.
GPON:Gigabit-Capable PON technology is latest generation broadband passive light Integrated access standard based on ITU-TG.984.x standard.
EPON:Ethernet Passive Optical
Network, Ethernet passive optical network, is PON technology based on Ethernet.
General optical fiber networking diagram is as shown in Figure 1.
The message that ONU sends under normal circumstances, through distal optical fiber-> beam splitter-> trunk optical fiber, then arrives OLT, and the optical signal received according to above-mentioned calculating OLT is exactly-18.6dB, meets OLT received optical power requirement.
Under abnormal conditions, if beam splitter distal optical fiber plane occurs that direct reflection phenomenon (forms the plane of reflection, than if any water droplet or dirty etc.), so signal can occur reflecting back to ONU at once, ONU have received a optical signal oneself sent, through the optical signal of first reflection, if the receiving plane of ONU also has direct reflection phenomenon (plane of reflection), so ONU through secondary reflection, then can issue OLT portion message.As in figure 2 it is shown, the impact that abnormal conditions produce includes:
1, OLT can receive two parts of identical content messages from same ONU2, and a copy of it is illegal message.Such message may result in OLT and receives the message of other ONU and make mistakes, and even the management message slot of other ONU is treaded down, causes other ONU can not stablize online.
2, occur that the ONU2 of reflection can receive a message oneself sent, if ONU processes proper meeting and directly abandons, if being not handled by, user can be caused to receive two parts of messages, cause error in data, the experience of client is that online is slow, and speech business can not normally wait.
For above-mentioned impact, prior art can only identify error message in optical fiber, and can not be accurately positioned is which terminal causes, and the error statistics occurred can not distinguish with other error code, i.e. can only navigate to an extra heavy pipe road has problems, but in extra heavy pipe road, which thin pipe there is a problem to be currently do not have very good scheme, it is impossible to is pin-pointed to the thin pipe gone wrong.
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of being conducive to and be accurately positioned in fiber optic communication recognition methods and the system that reflex circuit occurs.
The technical solution adopted in the present invention is:
The positioning identifying method of reflex in a kind of fiber optic communication, including step:
S1, receives the message with terminal ID info, records the keyword message of this message；
S2, when receiving the next message with this terminal ID info, the keyword message of inspection message is the most consistent with the keyword message in step S1, and judges whether terminal that this Termination ID is corresponding or Fiber Duct reflex occur accordingly.
Preferably, described terminal is ONU terminal.
Preferably, described Termination ID is LLID information.
Preferably, the timestamp information during described keyword message is EPON communication or the SUPERCOUNT information in GPON communication.
Preferably, described keyword message is the timestamp information in EPON communication,
Described step S1 particularly as follows:
Receive the n-th message with LLID information, resolve and record the timestamp information of n-th message；
Described step S2 specifically includes sub-step:
S21, receives the N+1 message with this LLID information, resolves and check that the timestamp information of N+1 message is the most consistent with the timestamp information of n-th message, in this way, then enters step S22, otherwise enters step S23；
S22, it is determined that reflex, report and alarm information occur in ONU or Fiber Duct that this LLID is corresponding；
S23, continues to and processes next message.
The positioning identification system of reflex in a kind of fiber optic communication, including OLT, beam splitter and multiple terminal, described beam splitter is connected with multiple terminals by Fiber Duct respectively, and described beam splitter is connected by Fiber Duct with OLT, and described OLT is used for implementing step:
S1, receives the message with terminal ID info, records the keyword message of this message；
S2, when receiving the next message with this terminal ID info, the keyword message of inspection message is the most consistent with the keyword message in step S1, and judges whether terminal that this Termination ID is corresponding or Fiber Duct reflex occur accordingly.
Preferably, described terminal is ONU terminal.
Preferably, the timestamp information during described keyword message is EPON communication or the SUPERCOUNT information in GPON communication.
Preferably, described OLT includes that optic communication chip, parallel converters and the optical fiber interface being sequentially connected with, described optic communication chip have been used for described step S1 and S2.
Preferably, also include that BASE network, described OLT with BASE network are connected.
The invention has the beneficial effects as follows:
The present invention is by the identification of message key message in fiber optic communication, it is achieved identification and the location to the message that reflex occurs, overcomes the problem that can not be pin-pointed to terminal or pipeline reflex occur in prior art.On the one hand, after there is reflection problems, the present invention can remind client's light path to have problems the very first time, it is to avoid end user processes after ensureing again, saves the time；On the other hand, the present invention avoids plug fiber orientation in turn the optical fiber of reflection occur, saves investigation and the working strength safeguarded.
The composite can be widely applied to various optical fiber telecommunications system.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further:
Fig. 1 is general optical fiber networking diagram；
Fig. 2 is the secondary reflection schematic diagram between ONU and beam splitter；
Fig. 3 is the structural representation of a kind of embodiment of present system；
Fig. 4 is the flow chart of a kind of embodiment of the inventive method.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
As shown in Figure 3, the positioning identification system of reflex in a kind of fiber optic communication, including OLT, beam splitter and multiple terminal, described beam splitter is connected with multiple terminals by Fiber Duct respectively, described beam splitter is connected by Fiber Duct with OLT, and described OLT is used for implementing step:
S1, receives the message with terminal ID info, records the keyword message of this message；
S2, when receiving the next message with this terminal ID info, the keyword message of inspection message is the most consistent with the keyword message in step S1, and judges whether terminal that this Termination ID is corresponding or Fiber Duct reflex occur accordingly.
In this embodiment, described terminal is ONU terminal.Described keyword message is the timestamp information in EPON communication or the SUPERCOUNT information in GPON communication.Described OLT includes that optic communication chip, parallel converters and the optical fiber interface being sequentially connected with, described optic communication chip have been used for described step S1 and S2.Also include that BASE network, described OLT with BASE network are connected.
Current each optic communication chip has several performance statisticses, and the present invention is to be improved in these statistical basis, makes these statistics improved disclosure satisfy that our scheme requirement.Illustrate as a example by MAC chip, as shown in Figure 3: the MAC chip at OLT has logic id(LLID for each ONU) carry out correspondence therewith, MAC chip can be added up for LLID.
Concrete, the positioning identifying method of reflex in a kind of fiber optic communication, including step:
S1, receives the message with terminal ID info, records the keyword message of this message；
S2, when receiving the next message with this terminal ID info, the keyword message of inspection message is the most consistent with the keyword message in step S1, and judges whether terminal that this Termination ID is corresponding or Fiber Duct reflex occur accordingly.
Preferably, described terminal is ONU terminal.
Preferably, described Termination ID is LLID information.
Preferably, the timestamp information during described keyword message is EPON communication or the SUPERCOUNT information in GPON communication.
Concrete, as shown in Figure 4, as a example by the timestamp information in keyword message communicates for EPON,
Described step S1 particularly as follows:
Receive the n-th message with LLID information, resolve and record the timestamp information of n-th message；
Described step S2 specifically includes sub-step:
S21, receives the N+1 message with this LLID information, resolves and check that the timestamp information of N+1 message is the most consistent with the timestamp information of n-th message, in this way, then enters step S22, otherwise enters step S23；
S22, it is determined that reflex occur in ONU or Fiber Duct that this LLID is corresponding, report secondary reflection warning information；
S23, continues to and processes next message, so circulating.
The present invention is to be optimized each LLID statistics according to MAC chip, counting messages increases and adds up according to the keyword of message, for example the timestamp information (TimeStamp) in EPON communication, the keyword messages such as the SUPERCOUNT of GPON communication, by judging whether these keyword messages repeat to judge which ONU concrete occurs in that reflex.Obviously, the quick targeting scheme of reflex that the present invention proposes, this scheme is not limited to the optical communication modes such as EPON, GPON, 10GGPON, 10GEPON, WDM PON, also includes other optic path mode.
In sum, as a example by EPON communicates, after MAC chip receives data, first parse the timestamp information (can be realized by hardware circuit) of message and carry out record, when receiving next message, message being resolved, checking that the timestamp of message is the most consistent with the front timestamp once recorded, if unanimously the most just creating secondary reflection, otherwise record current timestamp, continue with next message.
The present invention is by the identification of message key message in fiber optic communication, it is achieved identification and the location to the message that reflex occurs, overcomes the problem that can not be pin-pointed to terminal or pipeline reflex occur in prior art.On the one hand, after there is reflection problems, the present invention can remind client's light path to have problems the very first time, it is to avoid end user processes after ensureing again, saves the time；On the other hand, the present invention avoids plug fiber orientation in turn the optical fiber of reflection occur, saves investigation and the working strength safeguarded.
The composite can be widely applied to various optical fiber telecommunications system.
It is above the preferably enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement on the premise of spirit of the present invention, and deformation or the replacement of these equivalents are all contained in the application claim limited range.
Claims (10)
1. the positioning identifying method of reflex in a fiber optic communication, it is characterised in that include step:
S1, receives the message with terminal ID info, records the keyword message of this message；
S2, when receiving the next message with this terminal ID info, the keyword message of inspection message is the most consistent with the keyword message in step S1, and judges whether terminal that this Termination ID is corresponding or Fiber Duct reflex occur accordingly.
The positioning identifying method of reflex in a kind of fiber optic communication the most according to claim 1, it is characterised in that described terminal is ONU terminal.
The positioning identifying method of reflex in a kind of fiber optic communication the most according to claim 2, it is characterised in that described Termination ID is LLID information.
The positioning identifying method of reflex in a kind of fiber optic communication the most according to claim 3, it is characterised in that described keyword message is the timestamp information in EPON communication or the SUPERCOUNT information in GPON communication.
The positioning identifying method of reflex in a kind of fiber optic communication the most according to claim 4, it is characterised in that described keyword message be EPON communication in timestamp information, described step S1 particularly as follows:
Receive the n-th message with LLID information, resolve and record the timestamp information of n-th message；
Described step S2 specifically includes sub-step:
S21, receives the N+1 message with this LLID information, resolves and check that the timestamp information of N+1 message is the most consistent with the timestamp information of n-th message, in this way, then enters step S22, otherwise enters step S23；
S22, it is determined that reflex, report and alarm information occur in ONU or Fiber Duct that this LLID is corresponding；
S23, continues to and processes next message.
6. the positioning identification system of reflex in a fiber optic communication, it is characterized in that, including OLT, beam splitter and multiple terminal, described beam splitter is connected with multiple terminals by Fiber Duct respectively, described beam splitter is connected by Fiber Duct with OLT, and described OLT is used for implementing step:
S1, receives the message with terminal ID info, records the keyword message of this message；
S2, when receiving the next message with this terminal ID info, the keyword message of inspection message is the most consistent with the keyword message in step S1, and judges whether terminal that this Termination ID is corresponding or Fiber Duct reflex occur accordingly.
The positioning identification system of reflex in a kind of fiber optic communication the most according to claim 6, it is characterised in that described terminal is ONU terminal.
The positioning identification system of reflex in a kind of fiber optic communication the most according to claim 7, it is characterised in that described keyword message is the timestamp information in EPON communication or the SUPERCOUNT information in GPON communication.
The positioning identification system of reflex in a kind of fiber optic communication the most according to claim 7, it is characterised in that described OLT includes that optic communication chip, parallel converters and the optical fiber interface being sequentially connected with, described optic communication chip have been used for described step S1 and S2.
10. according to the positioning identification system of reflex in a kind of fiber optic communication described in any one of claim 6 to 9, it is characterised in that also include that BASE network, described OLT with BASE network are connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532583.1A CN106027144B (en) | 2016-07-07 | 2016-07-07 | Method and system for positioning and identifying reflection phenomenon in optical fiber communication |
| PCT/CN2016/093935 WO2018006460A1 (en) | 2016-07-07 | 2016-08-08 | Positioning and recognition method and system for reflection phenomenon in optical fibre communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532583.1A CN106027144B (en) | 2016-07-07 | 2016-07-07 | Method and system for positioning and identifying reflection phenomenon in optical fiber communication |
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| CN106027144A true CN106027144A (en) | 2016-10-12 |
| CN106027144B CN106027144B (en) | 2018-12-07 |
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| CN201610532583.1A Active CN106027144B (en) | 2016-07-07 | 2016-07-07 | Method and system for positioning and identifying reflection phenomenon in optical fiber communication |
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| WO (1) | WO2018006460A1 (en) |
Citations (3)
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| US20070230958A1 (en) * | 2006-04-02 | 2007-10-04 | Huawei Technologies Co., Ltd. | Method and System for Maintenance of a Passive Optical Network |
| CN103686468A (en) * | 2012-09-21 | 2014-03-26 | 上海斐讯数据通信技术有限公司 | Client device and control method thereof, and passive optical network and operation method thereof |
| CN103746850A (en) * | 2014-01-13 | 2014-04-23 | 中国联合网络通信集团有限公司 | Method and device for positioning fault and PON (Passive Optical Network) system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764646B (en) * | 2008-12-24 | 2013-01-02 | 中国科学院半导体研究所 | Wavelength-encoding optical time domain reflection test device and measurement method thereof |
| US8873960B2 (en) * | 2008-12-30 | 2014-10-28 | Broadcom Corporation | Techniques for detecting optical faults in passive optical networks |
| US8737834B2 (en) * | 2009-06-29 | 2014-05-27 | Broadcom Corporation | Method and system for optical performance monitoring in ethernet passive optical networks |
| US8265484B2 (en) * | 2009-12-15 | 2012-09-11 | Broadcom Corporation | RF signal transport over passive optical networks |
| CN102142893A (en) * | 2011-01-24 | 2011-08-03 | 华为技术有限公司 | Reflectance anomaly detection method, system and device for optical distribution network |
| WO2012149773A1 (en) * | 2011-09-27 | 2012-11-08 | 华为技术有限公司 | Method, system and device for optical fibre link detection in passive optical network |
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2016
- 2016-07-07 CN CN201610532583.1A patent/CN106027144B/en active Active
- 2016-08-08 WO PCT/CN2016/093935 patent/WO2018006460A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070230958A1 (en) * | 2006-04-02 | 2007-10-04 | Huawei Technologies Co., Ltd. | Method and System for Maintenance of a Passive Optical Network |
| CN103686468A (en) * | 2012-09-21 | 2014-03-26 | 上海斐讯数据通信技术有限公司 | Client device and control method thereof, and passive optical network and operation method thereof |
| CN103746850A (en) * | 2014-01-13 | 2014-04-23 | 中国联合网络通信集团有限公司 | Method and device for positioning fault and PON (Passive Optical Network) system |
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| CN106027144B (en) | 2018-12-07 |
| WO2018006460A1 (en) | 2018-01-11 |
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Address after: 518000 2101, No. 100, Zhihe Road, Dakang community, Yuanshan street, Longgang District, Shenzhen, Guangdong Patentee after: BANGYAN TECHNOLOGY Co.,Ltd. Address before: 9 / F, block B, building 5, Shenzhen software industry base, No.13, Haitian 1st Road, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: BANGYAN TECHNOLOGY Co.,Ltd. |