CN104184518B - Monitoring device and method for optical wavelength division multiplexing transmission system - Google Patents
Monitoring device and method for optical wavelength division multiplexing transmission system Download PDFInfo
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- CN104184518B CN104184518B CN201310191266.4A CN201310191266A CN104184518B CN 104184518 B CN104184518 B CN 104184518B CN 201310191266 A CN201310191266 A CN 201310191266A CN 104184518 B CN104184518 B CN 104184518B
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Abstract
The invention discloses a monitoring device and method for an optical wavelength division multiplexing transmission system. The monitoring device includes a wavelength optical channel error rate acquisition unit used for acquiring error rates of n wavelength optical channel routes; a group optical channel optical power acquisition unit used for acquiring group optical channel optical powers of group optical channel routes; a wavelength optical channel optical power acquisition unit used for acquiring wavelength optical channel optical powers of the wavelength optical channel routes; a wavelength optical channel error rate monitoring unit used for sending alarm information of a wavelength optical channel error rate when the error rate exceeds a preset error rate threshold; and a group optical channel optical power motoring unit and a wavelength optical channel optical power monitoring unit respectively used for monitoring the group optical channel optical powers and the wavelength optical channel optical powers. The monitoring device and method for the optical wavelength division multiplexing transmission system provide whole-course whole-network monitoring of optical channel performance of the optical wavelength division multiplexing transmission system.
Description
Technical field
The present invention relates to fiber optic communication field, particularly to a kind of monitoring method of optical WDM transmission system.
Background technology
OWDM (WDM) transmission technology can make full use of the bandwidth potential of optical fiber transmission medium, meets information-based
The requirement to communication network bandwidth for the social development is so that WDM technology has become as the fiber-optic transfer skill being most widely used at present
Art.According to the present situation of China's relevant industries standard and carrier network construction and maintenance work, the performance of WDM transmission system and event
Barrier monitoring depends on OSNR (OSNR) parameter.But be as unicast speed and bring up to 40Gbit/s, and restructural
The novel joint equipment such as optical add/drop multiplexer (ROADM) application, be unable to reach based on the line Measurement Technique of OSNR parameter
The required precision of measurement is so that tradition cannot be met with failure detection schemes to the performance of WDM transmission system based on OSNR parameter
Application requirement.
The introducing of new Technical specifications provides new optical channel performance parameter.Although these parameters are to a certain extent
Improve the accuracy of wavelength light channel part performance monitoring, but these methods are surveyed generally for the single parameter of single-point
Amount is it is impossible to provide the system performance monitoring to whole system optical channel full process and full network.
Content of the invention
One side according to embodiments of the present invention, a technical problem to be solved is：There is provided a kind of smooth wavelength-division multiple
With monitoring device and the method for Transmission system, provide the full process and full network monitoring to optical WDM transmission system optical channel performance.
A kind of monitoring device of optical WDM transmission system provided in an embodiment of the present invention, described OWDM transmission
System comprises n wavelength light channel path, and comprises the group road optical channel path of described n wavelength light channel path, n be from
So count, described monitoring device includes：
Wavelength light channel bit error rate collecting unit, for gathering the bit error rate on described n wavelength light channel path；
Group road optical channel luminous power collecting unit, for gathering described group road path channels path Shang Qun road optical channel light
Power；
Wavelength light channel optical power collecting unit, for gathering the wavelength optical channel on described n wavelength light channel path
Luminous power；
Wavelength light channel bit error rate monitoring means, for exceeding predetermined threshold bit error rate value when the described bit error rate, send
The warning message of wavelength light channel bit error rate；
Group road optical channel light power monitoring measuring unit, for exceeding predetermined group road light work(when described group road optical channel luminous power
Rate threshold value, sends group warning message of road luminous power.
Wavelength light channel optical power monitoring means, for leading to when described wavelength light channel optical power exceedes predetermined wavelength light
Road luminous power threshold value, sends the warning message of wavelength light channel optical power.
Preferably, shown wavelength light channel bit error rate collecting unit, specifically for gathering described n wavelength light channel path
Upper R1To RnReference point entangle the front bit error rate and entangle the rear bit error rate；
Described wavelength light channel bit error rate monitoring means, specifically for working as R1To RnAny one reference point in reference point
Entangle the front bit error rate or entangle the rear bit error rate and exceed predetermined entangling front threshold bit error rate value or entangle rear threshold bit error rate value, send ripple
The warning message of the long optical channel bit error rate.
Preferably, described group road optical channel luminous power collecting unit, specifically for gathering described group road path channels path
On MPI-SM、MPI-RM、SM、RMThe group road optical channel luminous power of reference point；
Described group road optical channel light power monitoring measuring unit, specifically for as described MPI-SM、MPI-RM、SM、RMIn reference point
The group road optical channel luminous power of any one reference point exceedes predetermined group road luminous power threshold value, sends group report of road luminous power
Alarming information.
Preferably, described wavelength light channel optical power collecting unit, specifically for gathering described n wavelength light channel path
Upper S1-Sn、R1-RnThe wavelength light channel optical power of reference point, and MPI-SM、MPI-RM、SM、RMEach wavelength light of reference point is led to
The wavelength light channel optical power in road；
Described wavelength light channel optical power monitoring means, specifically for as described S1-Sn、R1- Rn reference point, and MPI-
SM、MPI-RM、SM、RMIn reference point, the wavelength light channel optical power of any one reference point exceedes predetermined wavelength optical channel light
Power threshold, sends the warning message of wavelength light channel optical power.
Preferably, described monitoring device also includes：
Failure location unit, for when receiving warning message, identifying the monitoring means of alert；According to being known
The monitoring means corresponding wavelength light channel path not gone out or group road optical channel path, identify and exceed threshold value on this path
Reference point；According to warning message and wavelength light channel path or group road optical channel routing information, identification leads to warning message
Trouble point.
A kind of monitoring method of optical WDM transmission system provided in an embodiment of the present invention, described OWDM transmission
System comprises n wavelength light channel path, and comprises the group road optical channel path of described n wavelength light channel path, described
Monitoring method includes：
Gather the bit error rate on described n wavelength light channel path；
Gather described group road path channels path Shang Qun road optical channel luminous power；
Gather the wavelength light channel optical power on described n wavelength light channel path；
When the described bit error rate exceedes predetermined threshold bit error rate value, send the warning message of wavelength light channel bit error rate；
When described group road optical channel luminous power exceedes predetermined group road luminous power threshold value, send group warning of road luminous power
Information.
When described wavelength light channel optical power exceedes predetermined wavelength light channel optical power threshold value, send wavelength optical channel
The warning message of luminous power.
Preferably, the described bit error rate gathering on described n wavelength light channel path, specifically includes：
Gather R on described n wavelength light channel path1To RnReference point entangle the front bit error rate and entangle the rear bit error rate；
Described exceed predetermined threshold bit error rate value when the described bit error rate, send the alarm signal of wavelength light channel bit error rate
Breath, specifically includes：
Work as R1To RnIn reference point, any one reference point entangles the front bit error rate or entangles before the rear bit error rate exceedes predetermined entangling
Threshold bit error rate value or entangle rear threshold bit error rate value, sends the warning message of wavelength light channel bit error rate.
Preferably, described collection described group road path channels path Shang Qun road optical channel luminous power, specifically includes：
Gather the MPI-S on the path channels path of described group roadM、MPI-RM、SM、RMThe group road optical channel light work(of reference point
Rate；
Described exceed predetermined group road luminous power threshold value when described group road optical channel luminous power, send group road luminous power
Warning message, specifically includes：
As described MPI-SM、MPI-RM、SM、RMIn reference point, the group road optical channel luminous power of any one reference point exceedes
Predetermined group road luminous power threshold value, sends group warning message of road luminous power.
Preferably, the described wavelength light channel optical power gathering on described n wavelength light channel path, specifically includes：
Gather S on described n wavelength light channel path1-Sn、R1-RnThe wavelength light channel optical power of reference point, and
MPI-SM、MPI-RM、SM、RMThe wavelength light channel optical power of each wavelength optical channel of reference point；
Described exceed predetermined wavelength light channel optical power threshold value when described wavelength light channel optical power, send wavelength light
The warning message of channel optical power, specifically includes：
As described S1-Sn、R1-RnReference point, and MPI-SM、MPI-RM、SM、RMAny one reference point in reference point
Wavelength light channel optical power exceedes predetermined wavelength light channel optical power threshold value, sends the alarm signal of wavelength light channel optical power
Breath.
Preferably, described monitoring method also includes：
When receiving warning message, identify whether the warning message for group road luminous power；
If the warning message of group road luminous power, update the MPI-S on the path channels path of described group roadM、MPI-RM、SM、
RMThe group road optical channel luminous power of reference point；Otherwise, identify whether the warning message for wavelength light channel optical power；
If the warning message of wavelength light channel optical power, update described S1-Sn、R1-RnReference point, and MPI-SM、
MPI-RM、SM、RMThe wavelength light channel optical power of reference point；Otherwise, update the MPI-S on the path channels path of group roadM、MPI-
RM、SM、RMThe group road optical channel luminous power of reference point, and S1-Sn、R1-RnReference point, MPI-SM、MPI-RM、SM、RMReference point
Wavelength light channel optical power.
The monitoring device of the optical WDM transmission system being provided based on the above embodiment of the present invention and method, due to wavelength
Optical channel path and group road optical channel path are the optical channel path being operated in two kinds of different aspects, therefore, by not going the same way
Parameter on footpath is monitored, thus providing the stage construction monitoring to optical WDM transmission system.Meanwhile, wavelength light passway
Jing Hequn road optical channel path comprises the fullpath of network it is achieved that complete to optical WDM transmission system optical channel performance
Journey the whole network is monitored.
By the detailed description to the exemplary embodiment of the present invention referring to the drawings, the further feature of the present invention and its
Advantage will be made apparent from.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, also may be used
So that other accompanying drawings are obtained according to these accompanying drawings.
Simultaneously it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it is further discussed in subsequent accompanying drawing.
Constitute the Description of Drawings of a part the embodiments of the invention of description, and be used for together with the description solving
Release the principle of the present invention.
Referring to the drawings, according to detailed description below, the present invention can be more clearly understood from, wherein：
Fig. 1 illustrates the schematic diagram of optical WDM transmission system provided by the present invention；
Fig. 2 illustrates a kind of structural representation of embodiment of the monitoring device of optical WDM transmission system provided by the present invention
Figure；
Fig. 3 illustrates a kind of structural representation of embodiment of the monitoring device of optical WDM transmission system provided by the present invention
Figure；
Fig. 4 illustrates that a kind of flow process of embodiment of the monitoring method of optical WDM transmission system provided by the present invention is illustrated
Figure；
Fig. 5 illustrates that a kind of flow process of embodiment of the monitoring method of optical WDM transmission system provided by the present invention is illustrated
Figure；
Fig. 6 illustrates the reference point schematic diagram as monitoring object provided by the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Should note
Anticipate and arrive：Unless specifically stated otherwise, the part otherwise illustrating in these embodiments and the positioned opposite of step do not limit this
Bright scope.
Description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its application or any restriction using.Based on the embodiment in the present invention, those of ordinary skill in the art are not making wound
The every other embodiment being obtained under the premise of the property made work, broadly falls into the scope of protection of the invention.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
When in the case of, described technology, method and apparatus should be considered authorize description a part.
In all examples with discussion shown here, any occurrence should be construed as merely exemplary, and not
It is as restriction.Therefore, the other examples of exemplary embodiment can have different values.
Shown in Figure 1, Fig. 1 illustrates the schematic diagram of optical WDM transmission system.Two unidirectional optical channels are comprised in Fig. 1
Path, for a Unidirectional light channel path, wherein, including n wavelength light channel path, and it is logical to comprise n wavelength light
The group road optical channel path of path, n is natural number.
As shown in fig. 1, it is group road optical channel path between optical multiplexer (OMU) and Optical Demultiplexing Unit (ODU), wherein
Including the optical line amplifier (OA) in optical link amplifier station.
In subscriber signal transmitter (Tx) and subscriber signal receiver (RX) between be n wavelength light channel path λ1To λn.
Wavelength light channel path not only includes TX- wavelength shifter (OTU)-OMU and ODU-OTU-RX, it is also included within OMU and ODU
Between for each wavelength light passway.Below to reference point used in the present invention, by arranging monitoring work(in reference point
Can, thus obtaining the monitoring parameter of reference point：
S represents the reference point of optical fiber junction after client signal transmitter output interface；
SnRepresent the reference point of optical fiber junction after the output interface that OTU is connected to OMU；
MPI-SMThe reference point of optical fiber junction after OA light output interface after expression OMU；
RMThe reference point of optical fiber junction before expression OA input interface；
SMThe reference point of optical fiber junction after expression OA output interface；
MPI-RMThe reference point of optical fiber junction before OA input interface before expression ODU；
RnThe reference point of optical fiber junction before the input interface of connection OTU after expression ODU；
R represents the reference point of optical fiber junction before client signal receiver input interface.
Shown in Figure 2, Fig. 2 illustrates that the structure of the monitoring device of optical WDM transmission system provided by the present invention is shown
It is intended to.A kind of this monitoring device of optical WDM transmission system includes：
Wavelength light channel bit error rate collecting unit 201, for gathering the bit error rate on n wavelength light channel path；Wavelength
Optical channel bit error rate monitoring means 202, for exceeding predetermined threshold bit error rate value when the bit error rate, send wavelength optical channel error code
The warning message of rate.
More specifically, wavelength light channel bit error rate collecting unit 201 gathers R on n wavelength light channel path1To RnReference
That puts entangles the front bit error rate (Pre-FEC BER) and entangles the rear bit error rate (Post-FEC BER).
Wavelength light channel bit error rate monitoring means 202 are specifically for working as R1To RnIn reference point, any one reference point entangles
The front bit error rate or entangle the rear bit error rate and exceed predetermined when entangling front threshold bit error rate value or entangling rear threshold bit error rate value respectively, sends out
Go out the warning message of wavelength light channel bit error rate.
As shown in figure 1, R1To RnReference point is located on n wavelength light channel path between ODU and OTU respectively.As numeral
Transmission system, the bit error rate (BER) is the essential parameter of reflection transmission channel performance, therefore, in each reference point RiCollection
Entangle front and entangle latter two bit error rate, realize the real-time monitoring to wavelength optical channel final performance and fault.
Monitoring device in Fig. 2 embodiment, also includes：
Group road optical channel luminous power collecting unit 203, for gathering group road path channels path Shang Qun road optical channel light
Power；
Group road optical channel light power monitoring measuring unit 204, for exceeding predetermined group road light work(when group road optical channel luminous power
Rate threshold value, sends group warning message of road luminous power.
More specifically, group road optical channel luminous power collecting unit 203, for gathering the MPI- on the path channels path of group road
SM、MPI-RM、SM、RMThe group road optical channel luminous power of reference point；Group road optical channel light power monitoring measuring unit 204, specifically for working as
MPI-SM、MPI-RM、SM、RMIn reference point, the group road optical channel luminous power of any one reference point exceedes predetermined group road light work(
Rate threshold value, sends group warning message of road luminous power.
By gathering the luminous power parameter on the optical channel path of group road it is achieved that to group road optical channel process performance and fault
Real time monitoring function.
Monitoring device in Fig. 2 embodiment also includes：
Wavelength light channel optical power collecting unit 205, for gathering the wavelength optical channel light on n wavelength light channel path
Power；
Wavelength light channel optical power monitoring means 206, for leading to when wavelength light channel optical power exceedes predetermined wavelength light
Road luminous power threshold value, sends the warning message of wavelength light channel optical power.
More specifically, wavelength light channel optical power collecting unit 205 specifically gathers S on n wavelength light channel path1-Sn、
R1-RnThe wavelength light channel optical power of reference point, and MPI-SM、MPI-RM、SM、RMThe wavelength of each wavelength optical channel of reference point
Optical channel luminous power；
Wavelength light channel optical power monitoring means 206, specifically for working as S1-Sn、R1-RnReference point, and MPI-SM、MPI-
RM、SM、RMIn reference point, the wavelength light channel optical power of any one reference point exceedes predetermined wavelength light channel optical power thresholding
Value, sends the warning message of wavelength light channel optical power.
By the monitoring to Single wavelength channel optical power, multiple reference points can be operated in, such as along a wavelength light
Path and the trend of circuit, obtain and monitor parameter on fullpath, thus realizing process monitoring.
According to a kind of specific example of monitoring device embodiment of the present invention, this monitoring device embodiment also includes：Fault is fixed
Bit location 207, for when receiving warning message, identifying the monitoring means of alert；According to the monitoring being identified
Unit corresponding wavelength light channel path or group road optical channel path, identify the reference point exceeding threshold value on this path.
Failure location unit 207 is also applied according to warning message and wavelength light channel path or group road optical channel path letter
Breath, identification leads to the trouble point of warning message.For example, according to warning message, failure location unit 207 identifies that this warning message is
Come from wavelength light channel path, or group road optical channel path, then after being defined as a kind of channel path, then along this path
Identify specific trouble point.
By above-described embodiment, after receiving warning message, according to the monitoring means of alert, so as to
Enough navigate to rapidly each optical channel path or group road optical channel path, thus obtain on corresponding path exceeding threshold value
The position of reference point, there is provided the positioning function to fault and incipient fault, positioning precision is reference point position between two nodes
Put.
Wavelength light channel bit error rate collecting unit 201, group road optical channel luminous power collecting unit 203 and wavelength optical channel light
Power collecting unit 205 can be respectively provided with multiple according to specific needs.
Shown in Figure 3, Fig. 3 illustrates that the structure of the monitoring device of optical WDM transmission system provided by the present invention is shown
It is intended to.The monitoring device of optical WDM transmission system can independently be realized it is also possible to as the function across manufacturer's comprehensive network management
Assembly, supports multivendor network it is also possible to work(as vendor network management system (NMS) or Element management system (EMS)
Energy assembly, supports independent vendor network.
Each unit in the monitoring device of optical WDM transmission system of the present invention, can be entered by different data channel
Row communication.Data channel has several embodiments as follows：
EMS, NMS data communication network (DCN) of existing WDM network can be utilized；Optical WDM transmission system
Each monitoring means in monitoring device are communicated with each collecting unit by NMS, EMS or DCN, wherein NMS, EMS with each
Communication between collecting unit can by NMS, EMS internal mechanism realize, the monitoring device of optical WDM transmission system with
The communication of NMS, EMS is realized by the northbound interface of NMS, EMS.
Collecting unit in apparatus of the present invention can be distributed in the external reference point between node device, such as group road optical channel
Luminous power collecting unit 203 and wavelength light channel optical power collecting unit 205 can be arranged on MPI-SM、MPI-RM、SM、RMDeng
Reference point；Implement simple, the positioning precision of fault/incipient fault is the link between certain node or certain two node.
The internal reference point between the internal key componentses of node device can also be distributed in, that is, in above-mentioned MPI-SM、
MPI-RM、SM、RMOn the basis of reference point, also add S1～Sn, R1～Rn etc. is between reference point, and OA and OMU/ODU etc.
Non-standard reference point；This embodiment is relatively complicated, but the positioning precision of fault/incipient fault can bring up in equipment
Portion's reference point.
Shown in Figure 4, Fig. 4 illustrates that the flow process of the monitoring method of optical WDM transmission system provided by the present invention is shown
It is intended to.Optical WDM transmission system comprises n wavelength light channel path, and the group road comprising n wavelength light channel path
Optical channel path.In the monitoring method of optical WDM transmission system that this embodiment provides, including：
401, the bit error rate on n wavelength light channel path of collection；
402, collection group road path channels path Shang Qun road optical channel luminous power；
403, the wavelength light channel optical power on n wavelength light channel path of collection；
404, when the bit error rate exceedes predetermined threshold bit error rate value, send the warning message of wavelength light channel bit error rate；
405, when group road optical channel luminous power exceedes predetermined group road luminous power threshold value, send group warning of road luminous power
Information.
406, when wavelength light channel optical power exceedes predetermined wavelength light channel optical power threshold value, send wavelength optical channel
The warning message of luminous power.
According to a kind of specific example of monitoring method embodiment of the present invention, in 401 operations, gather n wavelength light channel path
On the bit error rate, specifically can include：R on n wavelength light channel path of collection1To RnReference point entangle the front bit error rate and after entangling
The bit error rate；
404 operations exceed predetermined threshold bit error rate value when the bit error rate, send the warning message of wavelength light channel bit error rate,
Specifically include：Work as R1To RnIn reference point, any one reference point entangles the front bit error rate or entangles the rear bit error rate and exceed predetermined entangling
Front threshold bit error rate value or entangle rear threshold bit error rate value, sends the warning message of wavelength light channel bit error rate.
According to a kind of specific example of monitoring method embodiment of the present invention, the group on 402 collection group road path channels paths
Road optical channel luminous power, specifically includes：MPI-S on collection group road path channels pathM、MPI-RM、SM、RMThe group of reference point
Road optical channel luminous power；
405 operations exceed predetermined group road luminous power threshold value when group road optical channel luminous power, send group road luminous power
Warning message, specifically includes：Work as MPI-SM、MPI-RM、SM、RMThe group road optical channel light work(of any one reference point in reference point
Rate exceedes predetermined group road luminous power threshold value, sends group warning message of road luminous power.
According to a kind of specific example of monitoring method embodiment of the present invention, the ripple on 403 n wavelength light channel paths of collection
Long optical channel luminous power, specifically includes：S on n wavelength light channel path of collection1-Sn、R1-RnThe wavelength optical channel light of reference point
Power, and MPI-SM、MPI-RM、SM、RMThe wavelength light channel optical power of each wavelength optical channel of reference point；
Accordingly, 406 operations exceed predetermined wavelength light channel optical power threshold value when wavelength light channel optical power, send
The warning message of wavelength light channel optical power, specifically includes：Work as S1-Sn、R1-RnReference point, and MPI-SM、MPI-RM、SM、RM
In reference point, the wavelength light channel optical power of any one reference point exceedes predetermined wavelength light channel optical power threshold value, sends
The warning message of wavelength light channel optical power.
Because group road optical channel and wavelength light channels operation are in different aspects, therefore, when an error occurs firstly the need of
The level that failure judgement occurs.By example below come failure judgement level.Shown in Figure 5, Fig. 5 illustrates that the present invention is carried
For optical WDM transmission system monitoring method schematic flow sheet.One kind tool according to monitoring method embodiment of the present invention
Body example, this monitoring method also includes：
501, when receiving warning message, identify whether the warning message for group road luminous power；If group road luminous power
Warning message, executes 502；Otherwise, 503 are executed；
502, update the MPI-S on the path channels path of group roadM、MPI-RM、SM、RMThe group road optical channel light work(of reference point
Rate；
503, identify whether the warning message for wavelength light channel optical power；If the alarm signal of wavelength light channel optical power
Breath, executes 504；Otherwise, 505 are executed；
504, update S1-Sn、R1-RnReference point, and MPI-SM、MPI-RM、SM、RMThe wavelength optical channel light work(of reference point
Rate；
505, update the MPI-S on the path channels path of group roadM、MPI-RM、SM、RMThe group road optical channel light work(of reference point
Rate, and S1-Sn、R1-RnReference point, MPI-SM、MPI-RM、SM、RMThe wavelength light channel optical power of reference point.Complete fault fixed
Position.
Shown in Figure 6, Fig. 6 illustrates the reference point schematic diagram as monitoring object provided by the present invention.By specifically real
Example is illustrating monitoring method provided by the present invention.
Assume that certain wdm system is made up of 7 node devices such as #1～#7, the type of each node device is as shown in Figure 6.OTM#
A corresponding Tiao Qun road optical channel path and n bar wavelength light channel path between 1 to OTM#7.These optical channels can be expressed as institute
Through node reference point sequence, the group road optical channel of such as OTM#7 to OTM#1 can be expressed as【OTM#7MPI-SM；
OLA#6MPI-RM；OLA#6MPI-SM；OLA#5RM；OLA#5SM；OEQ#4MPI-RM；OEQ#4MPI-SM；OLA#3RM；OLA#
3SM；OADM#2RM；OADM#2SM；OTM#1MPI-RM；】.
Monitoring to this group of road optical channel process performances and fault be can achieve to the real-time monitoring of these reference point luminous powers；
In failure conditions, according to the analysis to each reference point power parameter, by localization of fault optical channel reference point ordered sequence
Between last power normal point and first power abnormity point.
Under normal circumstances, wavelength light channel power monitoring point only needs to be placed on the node that may lead to Single wavelength changed power
Input and output reference point, such as OTM node, OADM node and OEQ node.
The monitoring device being provided by the present invention and method, the construction for the wdm system of operator and maintenance work are provided
A set of performance completing and malfunction monitoring and early warning scheme are it is adaptable to any type of service, any radio frequency channel speed, any modulation code
Type and randomly topologically structured WDM transmission system, have extensive adaptability.
Meanwhile, it is also equipped with the real-time monitoring work(of final performance to wavelength optical channel and group road optical channel and process performance
Energy；Support, the performance monitoring of region-by-region piecewise to end to end circuit, realize full process and full network monitoring；Not only grasp circuit end to arrive
The performance at end, and can be with change in transmitting procedure for the Monitoring Performance.
So far, a kind of monitoring device of optical WDM transmission system and side according to the present invention is described in detail
Method.In order to avoid covering the design of the present invention, some details known in the field are not described.Those skilled in the art according to
Above description, completely it can be appreciated how implementing technical scheme disclosed herein.
In this specification, each embodiment is all described by the way of going forward one by one, and what each embodiment stressed is and it
The difference of its embodiment, same or analogous part cross-reference between each embodiment.For OWDM
For the monitoring method embodiment of Transmission system, because it is substantially corresponding with embodiment of the method, so fairly simple, the phase of description
In place of pass, the part referring to embodiment of the method illustrates.
Monitoring device and the method for the optical WDM transmission system of the present invention may be achieved in many ways.For example,
The OWDM transmission of the present invention can be realized by any combinations of software, hardware, firmware or software, hardware, firmware
The monitoring device of system and method.Said sequence for the step of methods described merely to illustrating, the side of the present invention
The step of method is not limited to order described in detail above, unless specifically stated otherwise.Additionally, in certain embodiments,
Also the present invention can be embodied as recording program in the recording medium, these programs are included for realizing the method according to the invention
Machine readable instructions.Thus, the present invention also covers storage for executing the recording medium of the program of the method according to the invention.
Although being described in detail to some specific embodiments of the present invention by example, the skill of this area
Art personnel it should be understood that above example is merely to illustrate, rather than in order to limit the scope of the present invention.The skill of this area
Art personnel are it should be understood that can modify to above example without departing from the scope and spirit of the present invention.This
Bright scope is defined by the following claims.
Claims (10)
1. a kind of monitoring device of optical WDM transmission system, described optical WDM transmission system comprises n wavelength light and leads to
Path, and comprise the group road optical channel path of described n wavelength light channel path, n is for natural number it is characterised in that institute
State monitoring device to include：
Wavelength light channel bit error rate collecting unit, for gathering the R on described n wavelength light channel path1To RnThe mistake of reference point
Code check, wherein, RnRepresent the input interface connecting wavelength shifter OTU after light wavelength division unit ODU of n-th wavelength optical channel
The reference point of optical fiber junction before；
Group road optical channel luminous power collecting unit, for gathering described group road path channels path Shang Qun road optical channel light work(
Rate；
Wavelength light channel optical power collecting unit, for gathering the wavelength optical channel light work(on described n wavelength light channel path
Rate；
Wavelength light channel bit error rate monitoring means, for exceeding predetermined threshold bit error rate value when the described bit error rate, send wavelength
The warning message of the optical channel bit error rate；
Group road optical channel light power monitoring measuring unit, for exceeding predetermined group road luminous power door when described group road optical channel luminous power
Limit value, sends group warning message of road luminous power；
Wavelength light channel optical power monitoring means, for exceeding predetermined wavelength optical channel light when described wavelength light channel optical power
Power threshold, sends the warning message of wavelength light channel optical power.
2. monitoring device according to claim 1, it is characterised in that shown wavelength light channel bit error rate collecting unit, has
Body is used for gathering R on described n wavelength light channel path1To RnReference point entangle the front bit error rate and entangle the rear bit error rate；
Described wavelength light channel bit error rate monitoring means, specifically for working as R1To RnBefore the entangling of any one reference point in reference point
The bit error rate or entangle the rear bit error rate and exceed predetermined entangling front threshold bit error rate value or entangle rear threshold bit error rate value, sends wavelength light
The warning message of channel bit error rate.
3. monitoring device according to claim 2, it is characterised in that described group road optical channel luminous power collecting unit, has
Body is used for gathering the MPI-S on the path channels path of described group roadM、MPI-RM、SM、RMThe group road optical channel luminous power of reference point；
Described group road optical channel light power monitoring measuring unit, specifically for as described MPI-SM、MPI-RM、SM、RMIn reference point arbitrarily
The group road optical channel luminous power of one reference point exceedes predetermined group road luminous power threshold value, sends group alarm signal of road luminous power
Breath；
Wherein, MPI-SMThe reference of optical fiber junction after optical line amplifier OA light output interface after expression optical multiplexer OMU
Point, MPI-RMThe reference point of optical fiber junction, R before OA input interface before expression ODUMRepresent optical fiber before OA input interface
The reference point of junction, SMThe reference point of optical fiber junction after expression OA output interface.
4. monitoring device according to claim 3, it is characterised in that described wavelength light channel optical power collecting unit, has
Body is used for gathering S on described n wavelength light channel path1-Sn、R1-RnThe wavelength light channel optical power of reference point, and MPI-
SM、MPI-RM、SM、RMThe wavelength light channel optical power of each wavelength optical channel of reference point；
Described wavelength light channel optical power monitoring means, specifically for as described S1-Sn、R1- Rn reference point, and MPI-SM、
MPI-RM、SM、RMIn reference point, the wavelength light channel optical power of any one reference point exceedes predetermined wavelength light channel optical power
Threshold value, sends the warning message of wavelength light channel optical power；
Wherein SnIt is connected to the optical fiber before the input interface of OMU after the OTU output interface representing n-th wavelength optical channel to connect
Connect the reference point at place.
5. monitoring device according to claim 4 is it is characterised in that described monitoring device also includes：
Failure location unit, for when receiving warning message, identifying the monitoring means of alert；According to being identified
Monitoring means corresponding wavelength light channel path or group road optical channel path, identify the reference that threshold value is exceeded on this path
Point；According to warning message and wavelength light channel path or group road optical channel routing information, identification leads to the fault of warning message
Point.
6. a kind of monitoring method of optical WDM transmission system, described optical WDM transmission system comprises n wavelength light and leads to
Path, and comprise the group road optical channel path of described n wavelength light channel path it is characterised in that described monitoring method
Including：
Gather the R on described n wavelength light channel path1To RnThe bit error rate of reference point, wherein, RnRepresent that n-th wavelength light is led to
The reference point of optical fiber junction before the input interface of connection wavelength shifter OTU after light wavelength division unit ODU in road；
Gather described group road path channels path Shang Qun road optical channel luminous power；
Gather the wavelength light channel optical power on described n wavelength light channel path；
When the described bit error rate exceedes predetermined threshold bit error rate value, send the warning message of wavelength light channel bit error rate；
When described group road optical channel luminous power exceedes predetermined group road luminous power threshold value, send group alarm signal of road luminous power
Breath；
When described wavelength light channel optical power exceedes predetermined wavelength light channel optical power threshold value, send wavelength optical channel light work(
The warning message of rate.
7. monitoring method according to claim 6 is it is characterised in that on the described n wavelength light channel path of described collection
The bit error rate, specifically include：
Gather R on described n wavelength light channel path1To RnReference point entangle the front bit error rate and entangle the rear bit error rate；
Described exceed predetermined threshold bit error rate value when the described bit error rate, send the warning message of wavelength light channel bit error rate, tool
Body includes：
Work as R1To RnIn reference point, any one reference point entangles the front bit error rate or entangles the rear bit error rate and exceed and predetermined entangle front error code
Rate threshold value or entangle rear threshold bit error rate value, sends the warning message of wavelength light channel bit error rate.
8. monitoring method according to claim 7 is it is characterised in that on the path channels path of described collection described group road
Group road optical channel luminous power, specifically includes：
Gather the MPI-S on the path channels path of described group roadM、MPI-RM、SM、RMThe group road optical channel luminous power of reference point；
Described exceed predetermined group road luminous power threshold value when described group road optical channel luminous power, send group warning of road luminous power
Information, specifically includes：
As described MPI-SM、MPI-RM、SM、RMIn reference point the group road optical channel luminous power of any one reference point exceed predetermined
Group road luminous power threshold value, sends group warning message of road luminous power；
Wherein, MPI-SMThe reference of optical fiber junction after optical line amplifier OA light output interface after expression optical multiplexer OMU
Point, MPI-RMThe reference point of optical fiber junction, R before OA input interface before expression ODUMRepresent optical fiber before OA input interface
The reference point of junction, SMThe reference point of optical fiber junction after expression OA output interface.
9. monitoring method according to claim 8 is it is characterised in that on the described n wavelength light channel path of described collection
Wavelength light channel optical power, specifically include：
Gather S on described n wavelength light channel path1-Sn、R1-RnThe wavelength light channel optical power of reference point, and MPI-SM、
MPI-RM、SM、RMThe wavelength light channel optical power of each wavelength optical channel of reference point；
Described exceed predetermined wavelength light channel optical power threshold value when described wavelength light channel optical power, send wavelength optical channel
The warning message of luminous power, specifically includes：
As described S1-Sn、R1-RnReference point, and MPI-SM、MPI-RM、SM、RMThe wavelength of any one reference point in reference point
Optical channel luminous power exceedes predetermined wavelength light channel optical power threshold value, sends the warning message of wavelength light channel optical power；
Wherein SnIt is connected to the optical fiber before the input interface of OMU after the OTU output interface representing n-th wavelength optical channel to connect
Connect the reference point at place.
10. monitoring method according to claim 9 is it is characterised in that described monitoring method also includes：
When receiving warning message, identify whether the warning message for group road luminous power；
If the warning message of group road luminous power, update the MPI-S on the path channels path of described group roadM、MPI-RM、SM、RMGinseng
The group road optical channel luminous power of examination point；Otherwise, identify whether the warning message for wavelength light channel optical power；
If the warning message of wavelength light channel optical power, update described S1-Sn、R1-RnReference point, and MPI-SM、MPI-RM、
SM、RMThe wavelength light channel optical power of reference point；Otherwise, update the MPI-S on the path channels path of group roadM、MPI-RM、SM、RM
The group road optical channel luminous power of reference point, and S1-Sn、R1-RnReference point, MPI-SM、MPI-RM、SM、RMThe wavelength light of reference point
Channel optical power.
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| CN106033998B (en) * | 2015-03-16 | 2018-08-21 | 华为技术有限公司 | A kind of method and device of detection multi-path interference |
| US9876581B2 (en) * | 2016-02-10 | 2018-01-23 | Inphi Corporation | Circuit for multi-path interference mitigation in an optical communication system |
| CN108964757A (en) * | 2017-05-19 | 2018-12-07 | 北京华为数字技术有限公司 | Signal errors alarm method and device |
| CN110830106B (en) * | 2018-08-08 | 2022-03-18 | 中兴通讯股份有限公司 | Optical channel protection method, device, equipment and computer readable storage medium |
| CN111836136A (en) * | 2020-06-09 | 2020-10-27 | 烽火通信科技股份有限公司 | Network fault diagnosis method, device, equipment and readable storage medium |
| CN112039598B (en) * | 2020-08-12 | 2022-01-07 | 烽火通信科技股份有限公司 | Channel power automatic search adjustment method and system based on bit error rate |
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| US6707550B1 (en) * | 2000-04-18 | 2004-03-16 | Pts Corporation | Wavelength monitor for WDM systems |
| CN102201863A (en) * | 2011-06-09 | 2011-09-28 | 华为技术有限公司 | Method and device for debugging optical power |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6707550B1 (en) * | 2000-04-18 | 2004-03-16 | Pts Corporation | Wavelength monitor for WDM systems |
| CN102201863A (en) * | 2011-06-09 | 2011-09-28 | 华为技术有限公司 | Method and device for debugging optical power |
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