CN103312411B - Optical fiber link fault detection method and device - Google Patents
Optical fiber link fault detection method and device Download PDFInfo
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- CN103312411B CN103312411B CN201310209666.3A CN201310209666A CN103312411B CN 103312411 B CN103312411 B CN 103312411B CN 201310209666 A CN201310209666 A CN 201310209666A CN 103312411 B CN103312411 B CN 103312411B
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Abstract
The present embodiments relate to technical field of photo communication, it is provided that a kind of optical fiber link fault detection method and device.Optical fiber link fault detection method of the present invention, including: corresponding to link normal operating conditions, obtain the luminous power of optical module in local device, and obtain the luminous power of optical module in opposite equip., respectively as luminous power reference value；Detect when link occurs abnormal, obtain the luminous power of optical module in described local device, and obtain the luminous power of optical module in opposite equip., respectively as luminous power fault value；According to the luminous power reference value of optical module in described local device and opposite equip. and luminous power fault value, it has optical fiber link fault generation point based on fault detect rule detection.The embodiment of the present invention is by the luminous power reference value of optical module in acquisition equipment and luminous power fault value, realize optical fiber link fault is occurred the accurate detection of point based on fault detect rule, solve cannot be accurately positioned when optical fiber link breaks down the problem that fault occurs point.
Description
Technical field
The present embodiments relate to optical communication technique, particularly relate to a kind of optical fiber link fault detection method and
Device.
Background technology
In recent years, along with optical fiber cost declines, and 1G Base, 10G Base Ethernet and optical fiber letter
The extensive utilization of road (Fiber Channel is called for short FC) network, optical fiber connection has been increasingly becoming communication
The important component part of equipment room interconnection.
Fig. 1 is existing typical communication equipment optical fiber interconnections figure, as shown in Figure 1: the first communication equipment
Being connected by optical fiber between the optical module B of optical module A and the second communication equipment, it is 1 right that optical fiber is generally,
It is each responsible for receiving, sending data service message.Meanwhile, the first communication equipment, the second communication equipment with
Connected by management network port between management equipment, carry out protocol transmission and control, so that business and control phase
Separate, such as the management network port A of the first communication equipment, the management network port B of the second communication equipment and management
The management network port C of equipment connects communication by Ethernet.In real work, fibre-optical bending is excessive, light
Fine pressurized or fracture, joint pollution and junction contacts are bad, or its transmission of optical module life-time service,
Receiver module mistake, all can cause optical link fault.
At present, although optical module commonly uses intelligent optical module, the i.e. optical module of band digital diagnosis function, real
Time the detection transmitting optical power of optical module and received optical power the most normal, judge whether optical module is sent out with this
Raw fault.But when optical fiber link breaks down, still cannot accurately determine the end be fiber failure or
Which breaks down two optical modules of person's docking.If as in Fig. 1, optical module A received optical power exceeds threshold
Value, it may be possible to opposite end optical module B transmitting optical power is beyond threshold value or is connected to optical module A and light
Fiber failure between module B causes.If when detecting that optical module A received optical power is abnormal, letter
Singly judge optical module A fault, it is possible to cause erroneous judgement, bring great inconvenience to maintenance work.
Summary of the invention
The embodiment of the present invention provides a kind of optical fiber link fault detection method and device, to solve optical fiber link
When breaking down, it is impossible to be accurately positioned fault and the problem of point occurs, to realize quickly fault being safeguarded,
Recover business as early as possible properly functioning.
First aspect, the embodiment of the present invention provides a kind of optical fiber link fault detection method, including: corresponding
In link normal operating conditions, obtain the luminous power of optical module in local device, and obtain opposite equip.
The luminous power of middle optical module, respectively as luminous power reference value；
Detect when link occurs abnormal, obtain the luminous power of optical module in described local device, and obtain
Take the luminous power of optical module in opposite equip., respectively as luminous power fault value；
According to the luminous power reference value of optical module in described local device and opposite equip. and luminous power fault
Value, has optical fiber link fault generation point based on fault detect rule detection.
In the first possible implementation of first aspect, corresponding to link normal operating conditions, obtain
Take the luminous power of optical module in local device, and obtain the luminous power of optical module in opposite equip., including:
Detect when link normally works, sent out the operational trials of setting by described local device and opposite equip. mutually
Code stream, to obtain the luminous power of optical module in described local device and opposite equip. respectively；
Detect when link occurs abnormal, obtain the luminous power of optical module in described local device, and obtain
Take the luminous power of optical module in opposite equip., including: when detecting that link occurs abnormal, by described
The operational trials code stream that end equipment and opposite equip. send out setting mutually described, to obtain described local device respectively
And the luminous power of the optical module in opposite equip..
It is in the implementation that the second of first aspect is possible, described corresponding to link normal operating conditions,
Obtain the luminous power of optical module in local device, and obtain the luminous power of optical module in opposite equip., point
Not as luminous power reference value, including:
Obtain the normal luminous power model that works of the optical module Default Value in local device and opposite equip.
Enclose, in described normal work reference optical power, select described luminous power reference value.
According to first aspect, first aspect the first to any one of the possible implementation of the second,
In the third possible implementation of first aspect, the light of the optical module in described acquisition opposite equip.
Power, including:
The optical module of described opposite equip. is received by the management network port of described local device and opposite equip.
Luminous power；Or,
By between described local device and described opposite equip. in addition to the optical fiber link broken down arbitrarily
One road optical fiber link receives the luminous power of the optical module of described opposite equip..
According to first aspect, first aspect the first to any one of the possible implementation of the second,
In the 4th kind of possible implementation of first aspect, obtain the luminous power bag of optical module in local device
Include:
Read agreement by the bottom hardware of described local device and obtain the light of optical module in described local device
Power.
In the 5th kind of possible implementation of first aspect, described according to described local device and right
In end equipment, the luminous power reference value of optical module and luminous power fault value, detect that optical fiber link fault occurs
Before Dian, also include:
According to the light merit of optical module in default fault deviation threshold and described local device and opposite equip.
Rate reference value, generates fault detect rule.
According to first aspect, first aspect the first to any one of the 5th kind of possible implementation,
In the 6th kind of possible implementation of first aspect, the luminous power of described optical module includes: optical module
Received optical power and transmitting optical power.
The 6th kind of possible implementation according to first aspect, in the 7th kind of possible reality of first aspect
In existing mode, according to the luminous power reference value of optical module in described local device and opposite equip. and light merit
Rate fault value, has optical fiber link fault based on fault detect rule detection and occurs point to include:
Based on fault detect rule, if judging transmitting optical power reference value and the transmission of described local device
The deviation of luminous power fault value is more than transmitting optical power deviation threshold, and the reception light merit of described local device
Rate reference value is less than received optical power deviation threshold with the deviation of received optical power fault value, then detect event
Barrier occurs point for the optical module in local device；
Based on fault detect rule, if judging transmitting optical power reference value and the transmission of described local device
The deviation of luminous power fault value is less than transmitting optical power deviation threshold, and the reception light merit of described local device
Rate reference value is more than received optical power deviation threshold with the deviation of received optical power fault value, then detect event
Barrier occurs point for the optical module in opposite equip..
Second aspect, the embodiment of the present invention provides a kind of optical fiber link failure detector, including: obtain
Module, for corresponding to link normal operating conditions, obtains the luminous power of optical module in local device, with
And the luminous power of optical module in acquisition opposite equip., respectively as luminous power reference value；
Described acquisition module, is additionally operable to detect when link occurs abnormal, obtains light in described local device
The luminous power of module, and obtain the luminous power of optical module in opposite equip., respectively as luminous power fault
Value；
Detection module, for according to the luminous power benchmark of optical module in described local device and opposite equip.
Value and luminous power fault value, have optical fiber link fault generation point based on fault detect rule detection.
In the first possible implementation of second aspect, described acquisition module, specifically for detection
To link normally work time, sent out the operational trials code stream of setting mutually by described local device and opposite equip.,
To obtain the luminous power of optical module in described local device and opposite equip. respectively；
Described acquisition module, is specifically additionally operable to detect when link occurs abnormal, by described local device
The operational trials code stream sending out setting mutually described with opposite equip., to obtain described local device and right respectively
The luminous power of the optical module in end equipment.
In the implementation that the second of second aspect is possible, described acquisition module, specifically for:
Obtain the normal luminous power model that works of the optical module Default Value in local device and opposite equip.
Enclose, in described normal work reference optical power, select described luminous power reference value.
According to second aspect, second aspect the first to any one of the possible implementation of the second,
In the third possible implementation of second aspect, described acquisition module, specifically for:
The optical module of described opposite equip. is received by the management network port of described local device and opposite equip.
Luminous power；Or,
By between described local device and described opposite equip. in addition to the optical fiber link broken down arbitrarily
One road optical fiber link receives the luminous power of the optical module of described opposite equip..
According to second aspect, second aspect the first to any one of the possible implementation of the second,
In the 4th kind of possible implementation of second aspect, described acquisition module, specifically for:
Read agreement by the bottom hardware of described local device and obtain the light of optical module in described local device
Power.
In the 5th kind of possible implementation of second aspect, also include:
Generation module, for described according to the luminous power of optical module in described local device and opposite equip.
Reference value and luminous power fault value, before detecting that optical fiber link fault occurs point, according to default fault
In deviation threshold and described local device and opposite equip., the luminous power reference value of optical module, generates fault
Detected rule.
According to second aspect, second aspect the first to any one of the 5th kind of possible implementation,
In the 6th kind of possible implementation of second aspect, the luminous power of described optical module includes: optical module
Received optical power and transmitting optical power.
The 6th kind of possible implementation according to second aspect, in the 7th kind of possible reality of second aspect
In existing mode, described detection module, specifically for:
Based on fault detect rule, if judging transmitting optical power reference value and the transmission of described local device
The deviation of luminous power fault value is more than transmitting optical power deviation threshold, and the reception light merit of described local device
Rate reference value is less than received optical power deviation threshold with the deviation of received optical power fault value, then detect event
Barrier occurs point for the optical module in local device；
Based on fault detect rule, if judging transmitting optical power reference value and the transmission of described local device
The deviation of luminous power fault value is less than transmitting optical power deviation threshold, and the reception light merit of described local device
Rate reference value is more than received optical power deviation threshold with the deviation of received optical power fault value, then detect event
Barrier occurs point for the optical module in opposite equip..
Embodiment of the present invention one optical fiber link fault detection method and device, by link local terminal and right
The light of the optical module in the luminous power fault value of the optical module in end equipment, link local terminal and opposite equip.
Power reference value and fault detect judgment rule, it is achieved quickly location optical fiber link fault generation point, solve
When certainly optical fiber link breaks down, it is impossible to be accurately positioned the problem that fault occurs point.
Accompanying drawing explanation
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 reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under,
Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing typical communication equipment optical fiber interconnections figure；
Fig. 2 is the schematic flow sheet of optical fiber link fault detection method embodiment one of the present invention；
Fig. 3 is the schematic flow sheet of optical fiber link fault detection method embodiment two of the present invention；
Fig. 4 is the schematic flow sheet of optical fiber link fault detection method embodiment three of the present invention；
Fig. 5 is the structural representation of optical fiber link failure detector embodiment one of the present invention；
Fig. 6 is the structural representation of optical fiber link failure detector embodiment two of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Fig. 2 is the schematic flow sheet of optical fiber link fault detection method embodiment one of the present invention, the present embodiment
Fault detection method be applicable to the equipment that arbitrarily connected by optical fiber link, predominantly detect connection in pairs
Optical fiber link between two equipment whether fault.The method can be come real by optical fiber link failure detector
Existing, this device is realized by the mode of software and/or hardware, is arranged in each equipment.The present embodiment
The equipment that method can be connected by optical fiber link by any one performs, and this equipment is referred to as local device,
The equipment that optical fiber link opposite end connects is referred to as opposite equip..As in figure 2 it is shown, the method comprises the following steps:
Step 201, corresponding to link normal operating conditions, obtain the luminous power of optical module in local device,
And the luminous power of optical module in acquisition opposite equip., respectively as luminous power reference value；
In this step, optical fiber link is all normally to work in the scope that described luminous power reference value is certain
, it is assumed that luminous power reference value is-9.0dBm, then-9.0dBm ± 10% in the range of, optical fiber link
Can normally work.
Step 202, detect when link occurs abnormal, obtain the luminous power of optical module in described local device,
And the luminous power of optical module in acquisition opposite equip., respectively as luminous power fault value；
The reason causing link abnormal has a lot, such as: fibre-optical bending is excessive, optical fiber pressurized or fracture,
Joint pollutes and junction contacts is bad or optical module life-time service etc.；
Detection link occurs abnormal means can use mistake of statistics data message, or utilizes network to assist
View, such as loop detection agreement, does not receives loop detection protocol massages within certain period of period, then can determine whether
Link occurs abnormal；When detecting that link occurs abnormal, the optical module in both link ends equipment receives,
The optical signal occurred belongs to fault-signal, and the luminous power now obtained is luminous power fault value.
Step 203, according to the luminous power reference value of optical module in described local device and opposite equip. and light
Power failure value, has optical fiber link fault generation point based on fault detect rule detection；
In this step, described fault detect rule is the luminous power reference value according to optical module and luminous power event
The reference standard of the self-defining failure judgement of barrier value, such as described fault detect rule can will be defined as one
List, sets the combination of multiple judgment rule in lists, has judged result, i.e. a light under every kind of combination
Fine link failure generation point；There is an optical module that can be local device in optical fiber link fault, opposite end sets
Standby optical module, is connected to the optical fiber between two optical modules.
Relative in prior art, when optical fiber link breaks down, it is impossible to accurately determine the end be optical fiber therefore
Which problem of breaking down of two optical modules of barrier or docking, the present embodiment, by link local terminal with
And the optical module in the luminous power fault value of the optical module in opposite equip., link local terminal and opposite equip.
Luminous power reference value and fault detect judgment rule, it is achieved quickly location optical fiber link fault generation point,
When solution optical fiber link breaks down, it is impossible to be accurately positioned the problem that fault occurs point.
Fig. 3 is the schematic flow sheet of optical fiber link fault detection method embodiment two of the present invention, and the present embodiment exists
On the basis of a upper embodiment, increase the luminous power of the optical module obtained in local device and opposite equip.
Concrete methods of realizing, as it is shown on figure 3, comprise the following steps:
Step 301, detect when link normally works, sent out mutually with opposite equip. by described local device and set
Fixed operational trials code stream, to obtain the light merit of optical module in described local device and opposite equip. respectively
Rate；
In this step, the luminous power of described optical module includes: the received optical power of optical module and transmission light merit
Rate；
In order to avoid sending and receive the code stream of different length, it is likely to result in optical power value different.Therefore
The operational trials code stream of described setting is set to the signal code stream of regular length, and this regular length can root
The service signal on border is arranged factually, is optimal to meet the signal closest to normal operating conditions.
Step 302, detect when link occurs abnormal, send out institute mutually by described local device and opposite equip.
State the operational trials code stream of setting, to obtain the optical module in described local device and opposite equip. respectively
Luminous power；
The luminous power of the optical module obtained in this step compares to be formed with step 301, at link, event occurs
During barrier, the same operational trials code stream of described setting that sends is to obtain described local device and opposite end respectively
The luminous power of the optical module in equipment, namely the luminous power fault value of optical module.
Step 303, according to optical mode in the fault deviation threshold preset and described local device and opposite equip.
The luminous power reference value of block, generates fault detect rule；
Can measure according to real work situation according to the fault deviation threshold preset or take described in this step
Sample obtains, in such as real work, if on the basis of the luminous power reference value of optical module, ± 15%
In the range of can normally work, then default fault deviation threshold can be set to luminous power reference value
15%。
Step 304, according to the luminous power reference value of optical module in described local device and opposite equip. and light
Power failure value, has optical fiber link fault generation point based on fault detect rule detection.
The present embodiment, is sent out the operational trials code stream of setting mutually, obtains by described local device and opposite equip.
Take described local device and the reference value docking optical module in opposite equip. and fault value, it is achieved according to described
The luminous power reference value of optical module and luminous power fault value in local device and opposite equip., based on fault
Detected rule detects optical fiber link fault generation point, solves in prior art, it is impossible to be accurately positioned optical fiber
The problem that link failure occurs point.
On the base station of the present embodiment, it is preferred that in step 301-302, described set by described local terminal
Standby and opposite equip. management network port receives the luminous power of the optical module of described opposite equip.；Or, pass through
Between described local device and described opposite equip. in addition to the optical fiber link broken down any one road optical fiber
Link receives the luminous power of the optical module of described opposite equip..Obtain by selecting network interface or optical fiber to send
Luminous power, it is achieved obtain the motility of luminous power mode, if needing it is managed than management equipment
Light module in communication equipment working condition is managed collectively and detects, then communication equipment, management equipment lead to
Cross management network port and realize the luminous power data sharing of optical module.If management equipment need not leading to that it manages
In letter equipment, optical module working condition is managed collectively and detects, then communication equipment connects between directly passing through
The optical fiber connect sends optical module luminous power data, improves the efficiency of data transmission.
Fig. 4 is the schematic flow sheet of optical fiber link fault detection method embodiment three of the present invention, and the present embodiment exists
It is optimized on the basis of a upper embodiment, as shown in Figure 4, including:
Step 401, the light that normally works of the optical module Default Value obtained in local device and opposite equip.
Power bracket, selects described luminous power reference value in described normal work reference optical power；
Wherein, the luminous power of described optical module includes: the received optical power of optical module and transmitting optical power；
Numerical diagnostic optical module is general when dispatching from the factory all arranges normal work luminous power model at internal register
Enclosing, the luminous power of Default Value is considered as the optical power value of normal operating conditions by this step, by directly obtaining
Take the reference optical power that normally works of optical module Default Value in local device and opposite equip., selected
Described luminous power reference value, it is to avoid only when detecting that link normally works, by described local device
Send out the operational trials code stream of setting with opposite equip. mutually, described local device and opposite equip. could be obtained
The luminous power of middle optical module.If solve optical module insertion equipment, link failure is just occurred to pass through
Send out the problem that the operational trials code stream set obtains the luminous power reference value of optical module mutually.
Step 402, detect when link occurs abnormal, sent out mutually with opposite equip. by described local device
The operational trials code stream of described setting, to obtain the optical mode in described local device and opposite equip. respectively
The luminous power of block；
The intelligent optical module that optical module is band digital diagnosis function that the present embodiment uses, therefore equipment is permissible
Read agreement by the bottom hardware of described local device and obtain the light merit of optical module in described local device
Rate, such as I2C agreement.
Step 403, according to optical mode in the fault deviation threshold preset and described local device and opposite equip.
The luminous power reference value of block, generates fault detect rule；
Described default fault deviation threshold be described basis preset fault deviation threshold can be according to reality
Working condition measures or sampling obtains.As a example by Fig. 1, first obtain sending out of optical module A and optical module B
Send luminous power (TXA_POWER_INI, TXB_POWER_INI) and received optical power
(RXA_POWER_INI, RXB_POWER_INI), according to the situation of real work, arranges fault inclined
Difference limen value is 10%, then can generate if table 1 below is as fault detect rule；
It is wherein " > > " that deviation is more than certain threshold value, such as 10%；" < < " is that deviation is less than certain threshold value, as
10%；" ≈ " be deviation in certain threshold value, such as 10%；" ≠ " is that deviation is more than or less than certain threshold value,
Such as 10%.
Table 1
Step 404, based on fault detect rule, it is judged that the transmitting optical power reference value of described local device with
Whether the deviation of transmitting optical power fault value is more than transmitting optical power deviation threshold；The most then carry out step
405, if it is not, then carry out step 407；
In above-mentioned steps, calculate transmitting optical power reference value and the transmitting optical power fault of described local device
The deviation of value, according to fault detect rule, mates；Judge the transmitting optical power of described local device
Whether reference value is more than transmitting optical power deviation threshold with the deviation of transmitting optical power fault value,
Step 405, the received optical power reference value judging described local device and received optical power fault value
Whether deviation is less than received optical power deviation threshold；The most then carry out step 406；If it is not, then detect
All there is fault in the optical module at two ends；
Step 406, detecting that fault occurs point for the optical module in local device, testing process terminates；
In this step, according to step 404 and 405, it is known that, at the optical module transmitting optical power of local device
Under abnormal operating state, and, then may determine that at received optical power in normal operation, right
The optical signal that end optical module sends is no problem, the optical signal existing problems that local terminal optical module sends, and i.e. examines
Measuring fault occurs point for the optical module in local device；
Step 407, the received optical power reference value judging described local device and received optical power fault value
Whether deviation is less than received optical power deviation threshold；If it is not, then carry out step 408；The most then detect
There is fault in the optical fiber connecting two ends optical module；
Step 408, detecting that fault occurs point for the optical module in opposite equip., testing process terminates.
In this step, according to step 404 and 407, it is known that, at the optical module transmitting optical power of local device
In normal operation, and received optical power is under abnormal operating state, then may determine that, right
The optical signal existing problems that end optical module sends, the optical signal that local terminal optical module sends is no problem, i.e. examines
Measuring fault occurs point for the optical module in opposite equip.；
The present embodiment, by obtaining the reception of optical module in described local device and opposite equip. and sending light
Power, according to luminous power reference value and fault detect rule, it is achieved the network operation of fast and flexible and fault
Location.
Fig. 5 is the structural representation of optical fiber link failure detector embodiment one of the present invention, and this device leads to
Often it is integrated in inside the equipment that optical fiber link connects, as it is shown in figure 5, this device includes:
Acquisition module 51, for corresponding to link normal operating conditions, obtains optical module in local device
Luminous power, and obtain the luminous power of optical module in opposite equip., respectively as luminous power reference value；
Described acquisition module 51, is additionally operable to detect when link occurs abnormal, obtains in described local device
The luminous power of optical module, and obtain the luminous power of optical module in opposite equip., respectively as luminous power event
Barrier value；
Detection module 52, for according to the luminous power base of optical module in described local device and opposite equip.
Quasi-value and luminous power fault value, have optical fiber link fault generation point based on fault detect rule detection.
The device of the present embodiment, for performing the technical scheme of embodiment of the method shown in Fig. 2, it realizes principle
Similar with technique effect, here is omitted.
Fig. 6 is the structural representation of optical fiber link failure detector embodiment two of the present invention, such as Fig. 6 institute
Showing, the present embodiment is on the basis of a upper embodiment, further, and described acquisition module 51, specifically for
Detect when link normally works, sent out the operational trials of setting by described local device and opposite equip. mutually
Code stream, to obtain the luminous power of optical module in described local device and opposite equip. respectively；Described acquisition
Module 51, is specifically additionally operable to detect when link occurs abnormal, by described local device and opposite equip.
The operational trials code stream mutually sending out setting described, to obtain respectively in described local device and opposite equip.
The luminous power of optical module；
This device, also includes: generation module 61, sets according to described local device and opposite end for described
The luminous power reference value of standby middle optical module and luminous power fault value, detect that optical fiber link fault occurs point
Before, according to the light merit of optical module in default fault deviation threshold and described local device and opposite equip.
Rate reference value, generates fault detect rule.
Alternatively, on the basis of the present embodiment, described acquisition module 51, specifically for: obtain local terminal
The reference optical power that normally works of the optical module Default Value in equipment and opposite equip., from described normally
Described luminous power reference value is selected in work reference optical power.
Further, on the basis of the present embodiment, described acquisition module 51, specifically for: by institute
State the luminous power of the optical module of the management network port described opposite equip. of reception of local device and opposite equip.；
Or, by between described local device and described opposite equip. in addition to the optical fiber link broken down arbitrarily
One road optical fiber link receives the luminous power of the optical module of described opposite equip..
Specifically, on the basis of the present embodiment, described acquisition module 51, specifically for: by described
The bottom hardware of local device reads agreement and obtains the luminous power of optical module in described local device.
Further, on the basis of the present embodiment, the luminous power of described optical module includes: optical module
Received optical power and transmitting optical power.
Specifically, on the basis of the present embodiment, described detection module 52, specifically for: based on fault
Detected rule, if judging transmitting optical power reference value and the transmitting optical power fault value of described local device
Deviation more than transmitting optical power deviation threshold, and the received optical power reference value of described local device with connect
The deviation receiving luminous power fault value is less than received optical power deviation threshold, then detect that fault occurs point for this
Optical module in end equipment；Based on fault detect rule, if judging the transmission light merit of described local device
Rate reference value is less than transmitting optical power deviation threshold, and described local terminal with the deviation of transmitting optical power fault value
The received optical power reference value of equipment and the deviation of received optical power fault value are more than received optical power deviation threshold
Value, then detect that fault occurs point for the optical module in opposite equip..
Above-described embodiment device can perform the optical fiber link fault detect side that any embodiment of the present invention is provided
Method, it is similar with technique effect that it realizes principle, and here is omitted.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1. an optical fiber link fault detection method, it is characterised in that including:
Corresponding to link normal operating conditions, obtain the luminous power of optical module in local device, and obtain
The luminous power of optical module in opposite equip., respectively as luminous power reference value；
Detect when link occurs abnormal, obtain the luminous power of optical module in described local device, and obtain
Take the luminous power of optical module in opposite equip., respectively as luminous power fault value；
According to the luminous power reference value of optical module in described local device and opposite equip. and luminous power fault
Value, has optical fiber link fault generation point based on fault detect rule detection；
Wherein, described corresponding to link normal operating conditions, obtain the luminous power of optical module in local device,
And the luminous power of optical module in acquisition opposite equip., including:
Detect when link normally works, sent out the business of setting by described local device and opposite equip. mutually
Test code streams, to obtain the luminous power of optical module in described local device and opposite equip. respectively；
Described detect when link occurs abnormal, obtain the luminous power of optical module in described local device, with
And the luminous power of optical module in acquisition opposite equip., including:
Detect when link occurs abnormal, send out setting mutually described by described local device and opposite equip.
Operational trials code stream, to obtain the luminous power of the optical module in described local device and opposite equip. respectively.
Method the most according to claim 1, it is characterised in that the light in described acquisition opposite equip.
The luminous power of module, including:
The optical module of described opposite equip. is received by the management network port of described local device and opposite equip.
Luminous power；Or,
By between described local device and described opposite equip. in addition to the optical fiber link broken down arbitrarily
One road optical fiber link receives the luminous power of the optical module of described opposite equip..
Method the most according to claim 1, it is characterised in that obtain optical module in local device
Luminous power includes:
Read agreement by the bottom hardware of described local device and obtain the light of optical module in described local device
Power.
Method the most according to claim 1, it is characterised in that described according to described local device with
And the luminous power reference value of optical module and luminous power fault value in opposite equip., detect optical fiber link fault
Before there is point, also include:
According to the light merit of optical module in default fault deviation threshold and described local device and opposite equip.
Rate reference value, generates fault detect rule.
5. according to the arbitrary described method of claim 1-4, it is characterised in that the light merit of described optical module
Rate includes: the received optical power of optical module and transmitting optical power.
Method the most according to claim 5, it is characterised in that according to described local device and right
In end equipment, the luminous power reference value of optical module and luminous power fault value, go out based on fault detect rule detection
Optical fiber link fault occurs point to include:
Based on fault detect rule, if judging transmitting optical power reference value and the transmission of described local device
The deviation of luminous power fault value is more than transmitting optical power deviation threshold, and the reception light merit of described local device
Rate reference value is less than received optical power deviation threshold with the deviation of received optical power fault value, then detect event
Barrier occurs point for the optical module in local device；
Based on fault detect rule, if judging transmitting optical power reference value and the transmission of described local device
The deviation of luminous power fault value is less than transmitting optical power deviation threshold, and the reception light merit of described local device
Rate reference value is more than received optical power deviation threshold with the deviation of received optical power fault value, then detect event
Barrier occurs point for the optical module in opposite equip..
7. an optical fiber link failure detector, it is characterised in that including:
Acquisition module, for corresponding to link normal operating conditions, obtains the light of optical module in local device
Power, and obtain the luminous power of optical module in opposite equip., respectively as luminous power reference value；
Described acquisition module, is additionally operable to detect when link occurs abnormal, obtains light in described local device
The luminous power of module, and obtain the luminous power of optical module in opposite equip., respectively as luminous power fault
Value；
Detection module, for according to the luminous power benchmark of optical module in described local device and opposite equip.
Value and luminous power fault value, have optical fiber link fault generation point based on fault detect rule detection；
Wherein, described acquisition module, during specifically for detecting that link normally works, by described local terminal
Equipment and opposite equip. send out the operational trials code stream of setting mutually, to obtain described local device and right respectively
The luminous power of optical module in end equipment；
Described acquisition module, is specifically additionally operable to detect when link occurs abnormal, by described local device
The operational trials code stream sending out setting mutually described with opposite equip., to obtain described local device and right respectively
The luminous power of the optical module in end equipment.
Device the most according to claim 7, it is characterised in that described acquisition module, specifically for:
The optical module of described opposite equip. is received by the management network port of described local device and opposite equip.
Luminous power；Or,
By between described local device and described opposite equip. in addition to the optical fiber link broken down arbitrarily
One road optical fiber link receives the luminous power of the optical module of described opposite equip..
Device the most according to claim 7, it is characterised in that described acquisition module, specifically for:
Read agreement by the bottom hardware of described local device and obtain the light of optical module in described local device
Power.
Device the most according to claim 7, it is characterised in that also include:
Generation module, for described according to the luminous power of optical module in described local device and opposite equip.
Reference value and luminous power fault value, before detecting that optical fiber link fault occurs point, according to default fault
In deviation threshold and described local device and opposite equip., the luminous power reference value of optical module, generates fault
Detected rule.
11. according to the arbitrary described device of claim 7-10, it is characterised in that the light of described optical module
Power includes: the received optical power of optical module and transmitting optical power.
12. devices according to claim 11, it is characterised in that described detection module, specifically use
In:
Based on fault detect rule, if judging transmitting optical power reference value and the transmission of described local device
The deviation of luminous power fault value is more than transmitting optical power deviation threshold, and the reception light merit of described local device
Rate reference value is less than received optical power deviation threshold with the deviation of received optical power fault value, then detect event
Barrier occurs point for the optical module in local device；
Based on fault detect rule, if judging transmitting optical power reference value and the transmission of described local device
The deviation of luminous power fault value is less than transmitting optical power deviation threshold, and the reception light merit of described local device
Rate reference value is more than received optical power deviation threshold with the deviation of received optical power fault value, then detect event
Barrier occurs point for the optical module in opposite equip..
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| CN104518826B (en) * | 2013-09-30 | 2017-10-24 | 华为技术有限公司 | A kind of method, equipment and system for monitoring fiber failure |
| CN103560827B (en) * | 2013-10-18 | 2016-08-24 | 华为技术有限公司 | Fault detection method and device |
| CN104601232B (en) * | 2013-10-30 | 2017-11-17 | 华为技术有限公司 | Optical cable monitoring system, device and method |
| CN107395271A (en) * | 2017-09-15 | 2017-11-24 | 南方电网科学研究院有限责任公司 | The method and system of fiber link UNICOM state instruction |
| CN108809417B (en) * | 2018-05-28 | 2021-02-19 | 安徽维德工业自动化有限公司 | Fault detection system and method for optical fiber transceiver |
| CN110838872B (en) * | 2018-08-16 | 2021-10-01 | 华为技术有限公司 | Method, device and system for realizing optical link fault identification |
| CN108988939A (en) * | 2018-09-05 | 2018-12-11 | 深圳市达士科技股份有限公司 | It is a kind of it is quick judge optical cable decaying whether the method for exception and optical module luminous power specific value |
| CN109245950B (en) * | 2018-11-01 | 2021-09-17 | 郑州云海信息技术有限公司 | Method for determining link failure position and related device |
| CN112054840A (en) * | 2019-06-06 | 2020-12-08 | 中国移动通信有限公司研究院 | Connection information sending method, receiving method, optical module and central processing equipment |
| CN112787716A (en) * | 2019-11-08 | 2021-05-11 | 中兴通讯股份有限公司 | Fault detection method and device, electronic equipment and computer readable medium |
| CN111740881B (en) * | 2020-06-12 | 2022-04-29 | 广东浪潮大数据研究有限公司 | Network card link detection method, system, equipment and computer storage medium |
| CN111740777B (en) * | 2020-08-04 | 2022-06-14 | 国家电网有限公司信息通信分公司 | Optical fiber line fault detection system and detection method |
| CN113630670B (en) * | 2021-08-05 | 2023-07-18 | 烽火通信科技股份有限公司 | PON link weak light fault delimiting method, system and device |
| CN114465663A (en) * | 2022-03-23 | 2022-05-10 | 中国电信股份有限公司 | Optical path fault positioning method and system |
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| CA2498441C (en) * | 2004-02-26 | 2009-10-13 | Tropic Networks Inc. | Methods and apparatus for detecting a faulty component location along an optical path in an optical network |
| CN100568776C (en) * | 2004-03-03 | 2009-12-09 | 华为技术有限公司 | The implementation method of controlling based on the automated power of power detection in the optical-fiber network |
| JP5672729B2 (en) * | 2010-03-15 | 2015-02-18 | 富士通株式会社 | Optical transmission device, laser module, laser module failure detection method, and laser module failure detection program |
| CN102386974B (en) * | 2011-12-13 | 2014-10-22 | 中国电信股份有限公司 | PON (passive optical network) network fault detection method and device |
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