CN105933058A - PON network device bidirectional transmitting-receiving optical power automatic calibration method - Google Patents
PON network device bidirectional transmitting-receiving optical power automatic calibration method Download PDFInfo
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- CN105933058A CN105933058A CN201610250363.XA CN201610250363A CN105933058A CN 105933058 A CN105933058 A CN 105933058A CN 201610250363 A CN201610250363 A CN 201610250363A CN 105933058 A CN105933058 A CN 105933058A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
Abstract
The invention belongs to the field of bidirectional transmitting-receiving optical power calibration of single-fiber bidirectional optical network devices, and particularly relates to a PON network device bidirectional transmitting-receiving optical power automatic calibration method. The method comprises the following steps: firstly, a PON network device bidirectional transmitting-receiving optical power automatic calibration device performs self-calibration; secondly, an external to-be-calibrated PON network device is connected to the PON network device bidirectional transmitting-receiving optical power automatic calibration device, and the transmitting-receiving optical power of the to-be-calibrated PON network device is calibrated; the PON network device bidirectional transmitting-receiving optical power automatic calibration device comprises a bidirectional automatic calibration unit and a central control unit, and the bidirectional automatic calibration unit is connected with the central control unit. The method achieves real point-to-point bidirectional real-time calibration of the same light source, largely improves the precision, reduces manual intervention and costs, and improves the productivity and device usage performance.
Description
Technical field
The invention belongs to single-fiber bidirectional optical net equipment bidirectional transmit-receive optical power calibration field, be specifically related to a kind of PON equipment double
To transmitting-receiving luminous power automatic calibrating method.
Background technology
PON (EPON) access network technology is the best solution of the FTTx generally acknowledged in the industry, is also the master of fiber entering household
Means to be accessed, optical-fiber network scale and terminal quantity are huge, and this technology can make multiple user share simple optical fiber, so that
Obtaining in optical distribution network (ODN) and need not use any active device, i.e. need not be changed by " optical electrical/light ", this point arrives
The framework of multiple spot greatly reduces network installation, management and maintenance cost.
In PON system (GPON, EPON etc.), upward signal uses 1310nm wavelength, and downstream signal uses 1490nm and 1550nm
Wavelength, respectively in the opposite direction along same fiber-optic transfer.1310nm upward signal is kept silent, until by the descending letter of 1490nm
Number repeating query also distributes a transmission window, and upward signal uses time division multiple acess to access (TDMA) mode by multiple optical network units (ONU)
Uplink information be organized into time division multiplex (TDM) information flow to optical line terminal (OLT).
OAM--Operation Administration and Maintenance.According to being actually needed of carrier network operation,
It is generally 3 big classes by the management workload partition of network: operation (Operation), management (Administration), safeguard
(Maintenance), it is called for short OAM.Operation mainly completes commodity network and business is carried out prediction, plan and configure
Work；Safeguard the regular job activity mainly network and the test of business and fault management etc. carried out.
The important monitor control index that optical-fiber network runs the transmitting of equipment light, received optical power is OAM；PON equipment (OLT,
ONU) enormous amount, accurate calibration to separate unit from the point of view of these equipment time-consumingly big, cost is the highest, these light net equipment can only be at present
Rough calibration, error is at ± about 3dB.
PON equipment bidirectional transmit-receive optical power calibration operation under prior art, by realizing school with etalon optical power meter comparison
Accurate.Such as Fig. 1, standard light source first passes through optical attenuator and is connected to etalon optical power meter A；In test wavelength, adjust optical attenuation
Device, uses fiber optical power and reaches to calibrate performance number, and record the test number of now etalon optical power meter；The most again by standard light
Source is connected to optical network device B to be calibrated by optical attenuator；Computer connects optical network device to be calibrated, the mark that will just now record
Quasi-optical energy meter reading value is dealt into optical network device B to be calibrated, is received optical power calibration.
As Fig. 2, optical network device B to be calibrated are connected to etalon optical power meter A；In test wavelength, adjust PON net equipment for sending out
Penetrate luminous power state, the etalon optical power meter reading value of record, etalon optical power meter reading value is dealt into optical network device B to be calibrated,
Carry out launching optical power calibration.
At different wave length, above-mentioned steps needs to repeat.
As wanted accurate calibration, different wave length, different capacity point repeat above-mentioned steps.
It can be seen that have a disadvantage in that from described above
1, complex operation step, efficiency are low；
2, uncontrollable node is many, and influence factor is many.
Above-mentioned calibrating mode is premised on the luminous power of light source output is constant, the etalon optical power that during calibration, above a moment reads
Calibrate on the basis of meter reading；Therefore the same light source with reference to light source, not actually real meaning under prior art.
Factors above affects fiber optical power change, is unfavorable for calibration accurately, accurate calibration to optical network device, separate unit is time-consuming,
Cost of labor is the highest.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to: provide a kind of PON equipment bidirectional transmit-receive luminous power automatic
Calibration steps, it is achieved the point-to-point two-way real time calibration of same light source truly, greatly improves calibration accuracy, subtracts
Lack manual intervention, be effectively improved productivity ratio, reduced cost, improve equipment serviceability and product competitiveness greatly.
The present invention solves that the technical scheme that its technical problem is used is:
Described PON equipment bidirectional transmit-receive luminous power automatic calibrating method, comprises the following steps:
The first step, PON equipment bidirectional transmit-receive luminous power self-checking device carries out self calibration；
Second step, outside PON equipment to be calibrated connects PON equipment bidirectional transmit-receive luminous power self-checking device, right
The transmitting-receiving luminous power of PON equipment to be calibrated is calibrated；
Above-mentioned PON equipment bidirectional transmit-receive luminous power self-checking device, including the most a set of two-way automatic alignment unit and in
Heart control unit, described two-way automatic alignment unit is connected with centralized control unit, and two-way automatic alignment unit includes being sequentially connected with
Light adjustment module, can real-time online output light sampling module and can real-time online input light sampling module, can real-time online input
Light sampling module is connected with optical alignment interface.
In the present invention, optical alignment interface is used for connecting outside PON equipment to be calibrated, and two-way automatic alignment unit passes through can be real-time
Export light sampling module online and can realize output, the input optical power of same light source are carried out by real-time online input light sampling module
Synchronize monitoring in real time, at synchronization, same PON equipment to be calibrated can be carried out two-way calibration, non-interference, greatly
Improve calibration efficiency.
Wherein, preferred version is:
Described second step carries out synchronous calibration to PON equipment bidirectional transmit-receive luminous power to be calibrated simultaneously, mainly includes following two
Individual aspect:
A.PON network equipment received optical power is calibrated: outside PON equipment to be calibrated connects optical alignment interface, and and center
Control unit communication, can monitor the received optical power of PON equipment to be calibrated by real-time online output light sampling module in real time, with
Can real-time online output light sampling module collection result be mete-wand, outside PON equipment received optical power to be calibrated is entered
Row calibration；
The B.PON network equipment launches optical power calibration: outside PON equipment to be calibrated connects optical alignment interface, and and center
Control unit communication, can monitor the transmitting luminous power of PON equipment to be calibrated by real-time online input light sampling module in real time, with
Can real-time online input light sampling module collection result be mete-wand, outside PON equipment to be calibrated be launched luminous power and enters
Row calibration.
Said process, outside PON equipment to be calibrated only need to connect optical alignment interface once can complete PON equipment receipts
Luminous power is calibrated；Scheme introduces and can export light sampling module and light sampling module can be inputted by real-time online by real-time online, it is achieved
The point-to-point two-way real time calibration of same light source, reduces external influence factors, optical alignment interface fiber, incident optical power measure accurately,
Stable, greatly improve PON net equipment bidirectional transmit-receive optical power calibration degree of accuracy.May be implemented in synchronization, treat school simultaneously
The synchronous calibration of quasi-PON equipment bidirectional transmit-receive luminous power, PON equipment to be calibrated input, Output optical power can be simultaneously
Calibration, non-interference, greatly improve calibration efficiency；Optical alignment interface only need to be connected outside PON equipment to be calibrated
Light business interface once, can complete PON equipment multi-wavelength to be calibrated, many power points, bidirectional transmit-receive luminous power automatic
Calibration.
Under centralized control unit programme-control, adjust each module and PON equipment to be calibrated, it is achieved PON equipment is many
Wavelength, many power points, the calibration automatically of bidirectional transmit-receive luminous power and inspection automatically, and automatic discrimination assay, and manage day
Will achieves, automatic information statistical analysis, promotes quality management and quality control ability.
Optical network device bidirectional transmit-receive luminous power accurate calibration, makes the optical-fiber network optical node can be accurate to the transmitting power of optical node
Adjust, more preferably meet optical-fiber network and run.
Optical-fiber network runs the transmitting of equipment light, receives the important monitor control index that power is OAM, and these light net equipment are only at present
Can be rough calibration, error be big, and this makes the transmitting of the light device monitored of OAM, received optical power only as passing judgment on light
One reference of fine network link quality.Present invention achieves PON equipment bidirectional transmit-receive luminous power accurate calibration, operation
PON equipment also becomes optical metrology device simultaneously so that the transmitting of the light device monitored of OAM, received optical power can become
For passing judgment on a standard and judgment of fiber optic network link-quality, thus fiber optic network on-line quality evaluation and monitoring are produced actively
Profound significance.
Described can include optical branching device I, built in light energy meter I by real-time online output light sampling module, optical branching device I input is even
Connecing light adjustment module, optical branching device I outfan one tunnel connects and can input light sampling module by real-time online, optical branching device I output
The other end connects built in light energy meter I, built in light energy meter I and connects centralized control unit, can monitor optical alignment interface in real time
Output optical power；Can include optical branching device II, built in light energy meter II by real-time online input light sampling module, optical branching device II is defeated
Chu Duan mono-tunnel connects and can export light sampling module by real-time online, and the other end of optical branching device II output connects built in light energy meter II,
Optical branching device II input connects optical alignment interface, and built in light energy meter II connects centralized control unit, can monitor optical alignment in real time
Interface input optical power.Can real-time online output light sampling module with can real-time online input light sampling module position two-way from
Position in dynamic alignment unit can exchange, i.e. light adjustment module, can real-time online input light sampling module and can real-time online defeated
Go out light sampling module to be sequentially connected with.
Described first step self calibration includes inputting optical channel self calibration and output optical channel self calibration, wherein, exports optical channel self-correcting
Quasi-process is: external perimysium reference light power meter connect optical alignment interface, and with centralized control unit communication, centralized control unit is in journey
Sequence controls lower the adjustment light source mode of light adjustment module, wavelength, optical output power, makes Output optical power reach predefined parameter, outward
Ministerial standard light power meter and built in light energy meter I measure Output optical power simultaneously, and centralized control unit reads external perimysium reference luminous power
The numerical value of meter, and this numerical value is passed to built in light energy meter I, with external perimysium reference luminous power as mete-wand, to built in light merit
Rate I meter is calibrated；
Input optical channel self-calibration process is: the optical alignment interface overlapping two-way automatic alignment unit by two connects, and two sets are two-way automatically
Alignment unit all with centralized control unit communication, two overlap two-way automatic alignment units respectively with the built in light power I of the other side for metering
Benchmark, calibrates oneself built in light energy meter II；
Input optical channel self calibration terminates rear device self calibration and terminates.
Output optical channel self-calibration process in, centralized control unit adjust under program light adjustment module light source mode,
Wavelength, optical output power, make Output optical power reach predefined parameter, same by external perimysium reference light power meter and built in light energy meter I
Time measure light adjustment module Output optical power.
Input optical channel self calibration use two set two-way automatic alignment units be called two-way automatic alignment unit A and two-way from
Dynamic alignment unit B, input optical channel self calibration idiographic flow is:
Centralized control unit under program, adjusts the light source mode of two-way automatic alignment unit A, wavelength, optical output power,
Output optical power is made to reach predefined parameter；Centralized control unit reads two-way automatic alignment unit A built in light energy meter I numerical value,
And this numerical value is passed to two-way automatic alignment unit B built in light energy meter II, with two-way automatic alignment unit A built in light power
I is mete-wand, calibrates two-way automatic alignment unit B built in light energy meter II；In like manner, centralized control unit is in journey
Under sequence controls, adjust the light source mode of two-way automatic alignment unit B, wavelength, optical output power, make Output optical power reach pre-
Determining parameter, centralized control unit reads two-way automatic alignment unit B built in light energy meter I numerical value, and is passed to by this numerical value double
To automatic alignment unit A built in light energy meter II, with two-way automatic alignment unit B built in light power I as mete-wand, to double
Calibrate to automatic alignment unit A built in light energy meter II.
Device self calibration makes built in light energy meter I and built in light energy meter II become calibration standard source.Built in light energy meter I energy
Measure or reflect the optical power value that optical alignment interface sends accurately；Built in light energy meter II can be measured accurately or reflect optical alignment
The optical power value of interface, batch carries out PON equipment transmitting-receiving optical power calibration on this basis, specific as follows:
A.PON network equipment received optical power is calibrated: outside PON equipment to be calibrated connects optical alignment interface, and and center
Control unit communication, centralized control unit adjusts the light source mode of light adjustment module, wavelength, optical output power under program,
Making Output optical power reach predefined parameter, centralized control unit reads the numerical value of built in light energy meter I, and is passed to by this numerical value
Outside PON equipment to be calibrated, calibrates outside PON equipment received optical power to be calibrated；
The B.PON network equipment launches optical power calibration: outside PON equipment to be calibrated connects optical alignment interface, and and center
Control unit communication, it is to launch luminous power state that centralized control unit adjusts PON equipment to be calibrated under program, and
Watt level, built in light energy meter is launched in adjusting each service wavelength of PON equipment to be calibrated and its business adjusting power control interval
The II transmitting luminous power monitoring PON equipment to be calibrated in real time, centralized control unit reads the numerical value of built in light energy meter II,
And this numerical value is passed to outside PON equipment to be calibrated, outside PON equipment to be calibrated is launched luminous power and carries out school
Accurate；
Said method will realize each functional module combination of calibration, and be integrated and connected；And application can exist in real time in a calibration process
Line exports light sampling module and can realize calibrating same light source real-time sampling by real-time online input light sampling module；In center control
Under unit controls, multiple light courcess, multi-wavelength, many power points bidirectional transmit-receive luminous power are calibrated automatically；Once connect and just can calibrate in batches,
Need not change.
Centralized control unit has communication function, may be implemented in outside or remote computer program controls lower or interactive instruction control
Under calibrating installation is operated.
Described can real-time online output light sampling module and can real-time online input light sampling module also can share bi-directional light shunt,
Bi-directional light splitter output is respectively connecting to built in light energy meter I and built in light energy meter II, and bi-directional light shunt one tunnel inputs
End is connected to optical alignment interface, and another road input is connected to light adjustment module, built in light energy meter I and built in light energy meter II
Connecting centralized control unit respectively, this scheme and aforementioned schemes difference are to export light sampling module and can exist in real time by real-time online
Line input light sampling module has shared bi-directional light shunt.
Described smooth adjustment module includes multi-wavelength stable light source, wavelength switching control module and optical attenuator, the many ripples being sequentially connected with
Long stabilized light source, wavelength switching control module are connected with control unit respectively with optical attenuator, and multi-wavelength stable light source provides calibration
The light of required wavelength, wavelength switching control module controls incision at centralized control unit and changes the light of respective wavelength to corresponding port, light
Attenuator carries out light intensity decays regulation under the control of centralized control unit, and optical attenuator is the optical attenuation that can be automatically adjusted gain
Device, under the control instruction of centralized control unit, automatically carries out gain transformations, and then regulates its power level exporting optical signal,
Thus realize under different light sources, under different wave length, different capacity point is automatically adjusted.
Described multi-wavelength stable light source includes that the output of single mode light source or multimode light sources export or both have concurrently, the most corresponding with it,
Described two-way automatic alignment unit is the two-way automatic alignment unit being suitable for single mode；Or it is automatic for being suitable for the two-way multimode of multimode
Alignment unit；Or both have concurrently.
The structure composition of two-way automatic alignment unit is applicable to the automatic alignment unit of bidirection single-mode, the automatic alignment unit of two-way multimode；
That is, its basic structure is consistent, and according to single mode light source, the difference of multimode light sources, relevant interface etc. does accommodation.
In order to improve the performance motility of device further, described wavelength switching control module also sets up external light source access port.
Described smooth adjustment module, can real-time online output light sampling module and can the real-time online input collection that is integrated of light sampling module
Become assembly or be the most independent parts, in other words multi-wavelength stable light source, wavelength switching control module, optical attenuator, can be real
Time export light sampling module and can the real-time online input integrated package that is integrated of light sampling module or for the most independent portion online
Part.
Described centralized control unit uses microcontroller component or stand-alone computer, can be with multi-wavelength stable light source, wavelength switching control
Molding block, optical attenuator, can real-time online input light sampling module and can real-time online output light sampling module be integrated integrated
Assembly or be the most independent parts, if the integrated package that each assembly of device, unit are packaged as a whole, makes because of the simple of structure
Obtaining reliability to improve, space and cost are also greatly decreased, if each assembly of device, unit are made up of autonomous device, during use respectively
Being attached according to the mode described in literary composition, the motility of system strengthens.
The built-in communication part of described centralized control unit or connection external communication assembly, with PON equipment to be calibrated, outside
Intelligent computer communicate, centralized control unit pass through communication part, is connected with external smart computer, and carry out data exchange with
Communication；Form of communication is wired or wireless, serial ports or network interface, and then realizes long-range, controlled in wireless；For easy to operate, can be
Equipment sets up Input/Output Device interface, and input equipment interface connects input equipment, such as keyboard；Outut device interface connects
Outut device, such as display screen, the most integrated input, the LCD touch screen of output function.
If no special instructions, the optical device described in literary composition is suitable for single mode, multimode two ways.Device used in literary composition also may be used
According to custom, referred to as instrument, platform, system, built in light energy meter described in literary composition, be for external perimysium reference light power meter for,
Particular determination is not made in its position, as long as realizing its function.
Compared with prior art, the method have the advantages that
Present invention introduces and can input light sampling module and light sampling module can be exported by real-time online by real-time online, it is achieved truly
The point-to-point two-way real time calibration of same light source, reduce external influence factors, improve the reliability of calibration, concordance, greatly
Improving production efficiency and the quality control ability of product, optical alignment interface fiber, incident optical power are measured accurately, are stablized, pole
Improve greatly PON equipment bidirectional transmit-receive optical power calibration degree of accuracy, greatly improve product serviceability and competitiveness,
It is effectively improved productivity ratio, reduces cost.
May be implemented in synchronization, simultaneously the synchronous calibration to PON equipment bidirectional transmit-receive luminous power to be calibrated, PON to be calibrated
Network equipment input, Output optical power can be calibrated simultaneously, non-interference, greatly improve calibration efficiency；Only need to be by optical alignment
Interface connects outside PON equipment light business interface to be calibrated once, can complete PON equipment multi-wavelength to be calibrated,
Many power points, the automatic calibration of bidirectional transmit-receive luminous power；The Product Precision calibrated is high, and quality consistency is good, meets high accuracy
The prescription of calibration.
Under centralized control unit programme-control, adjust each module and PON equipment to be calibrated, it is achieved PON equipment
Multi-wavelength, many power points, the calibration automatically of bidirectional transmit-receive luminous power and inspection automatically, and automatic discrimination assay, and manage
Log archive, automatic information statistical analysis, Improving The Quality of Products analysis, quality control and the management means reviewed and ability.
The PON equipment calibrated can be according to the actual light network condition in the network topology run, self adaptation rational allocation
Each operational factor, can automatically, difference, precisely, fixed point regulate and control PON business optical signal power, Optimization Support network one
Directly it is in optimum duty, has ensured that network data service transmits quality, promoted the data service service quality of operator.Pole
Improve greatly scientific management means and the management level of the operation of optical-fiber network.
Optical network device bidirectional transmit-receive luminous power accurate calibration, makes the optical-fiber network optical node can be accurate to the transmitting power of optical node
Adjust, more preferably meet optical-fiber network and run.
Optical-fiber network runs the transmitting of equipment light, receives the important monitor control index that power is OAM, these light net equipment at present
Can only be rough calibration, error be big, and this makes the transmitting of the light device monitored of OAM, received optical power only as commenting
Sentence a reference of fiber optic network link-quality.Present invention achieves PON equipment bidirectional transmit-receive luminous power accurate calibration, fortune
The PON equipment of row also becomes optical metrology device simultaneously so that the transmitting of the light device monitored of OAM, reception light merit
Rate can become the standard and judgment passing judgment on fiber optic network link-quality, thus produces fiber optic network on-line quality evaluation and monitoring
Raw positive profound significance.
Optical alignment interface of the present invention directly enters PON equipment light business interface, it is achieved that PON equipment light business interface
Point-to-point bi-directional synchronization real time calibration truly, will affect whole optical network device technological progress, industry standard progress and
Industry development trend, " service operation equipment+light metering sets to make optical-fiber network operation equipment be become by single " service operation equipment "
Standby " become a reality, it is the new development trend of optical network device and network operation technology.
Accompanying drawing explanation
Fig. 1 is the PON equipment received optical power calibration schematic diagram under prior art.
Fig. 2 is that the PON equipment under prior art launches optical power calibration schematic diagram
Fig. 3 is that the embodiment of the present invention 1 realizes theory diagram.
Fig. 4 is that the present invention exports the signal of optical channel self calibration flow process.
Fig. 5 is that the present invention inputs the signal of optical channel self calibration flow process.
Fig. 6 is the wavelength of the present invention self-alignment a kind of flow process signal of output optical channel at 1310nm.
Fig. 7 is the wavelength of the present invention self-alignment a kind of flow process signal of input optical channel at 1310nm.
Fig. 8 is the present invention, and to launch light at PON equipment to be calibrated be 1490nm, and receiving light is that 1310nm calibrates automatically
A kind of flow process signal.
Fig. 9 is the present invention, and to launch light at PON equipment to be tested be 1490nm, and receiving light is that 1310nm checks automatically
A kind of flow process signal.
Figure 10 is the present invention, and to launch light at PON equipment to be calibrated be 1490nm, receive light be 1310nm bi-directional synchronization from
A kind of flow process signal of dynamic calibration.
Figure 11 is the present invention, and to launch light at PON equipment to be tested be 1490nm, receive light be 1310nm bi-directional synchronization from
A kind of flow process signal of dynamic inspection.
Figure 12 is that the embodiment of the present invention 2 realizes theory diagram.
Figure 13 is that the embodiment of the present invention 3 realizes theory diagram.
Figure 14 is that the embodiment of the present invention 4 realizes theory diagram.
Detailed description of the invention
Below by way of particular specific embodiment, the implementation of the present invention being described, those skilled in the art can be by this specification
The content disclosed understands further advantage and the beneficial effect of the present invention easily.The present invention also can pass through other different being embodied as
Example is realized and is applied.Every details of the present invention also can be based on different viewpoints and application, in the premise without prejudice to the present invention
Under carry out various modification and transformation.
It is below presently preferred embodiments of the present invention, the protection domain that not this patent limits.All spirit at this patent and principle it
In, the amendment made, equivalent, improvement, within being all contained in protection scope of the present invention.
Below in conjunction with the accompanying drawings the embodiment of the present invention is described further:
Embodiment 1:
As it is shown on figure 3, PON equipment bidirectional transmit-receive luminous power automatic calibrating method of the present invention, comprise the following steps:
The first step, PON equipment bidirectional transmit-receive luminous power self-checking device carries out self calibration；
Second step, outside PON equipment to be calibrated connects PON equipment bidirectional transmit-receive luminous power self-checking device, right
The transmitting-receiving luminous power of PON equipment to be calibrated is calibrated；
Above-mentioned PON equipment bidirectional transmit-receive luminous power self-checking device, including the most a set of two-way automatic alignment unit and in
Heart control unit, described two-way automatic alignment unit is connected with centralized control unit, and two-way automatic alignment unit includes being sequentially connected with
Light adjustment module, can real-time online output light sampling module and can real-time online input light sampling module, can real-time online input
Light sampling module is connected with optical alignment interface.
In the present invention, optical alignment interface is used for connecting outside PON equipment to be calibrated, and two-way automatic alignment unit passes through can be real-time
Export light sampling module online and can realize output, the input optical power of same light source are carried out by real-time online input light sampling module
Synchronize monitoring in real time.
This programme introduces and can input light sampling module and can export light sampling module by real-time online by real-time online, it is achieved same light source point
To putting two-way real time calibration, reducing external influence factors, optical alignment interface fiber, incident optical power are measured accurately, are stablized, pole
Improve greatly PON equipment bidirectional transmit-receive optical power calibration degree of accuracy.
May be implemented in synchronization, simultaneously the synchronous calibration to PON equipment bidirectional transmit-receive luminous power to be calibrated, PON to be calibrated
Network equipment input, Output optical power can be calibrated simultaneously, non-interference, greatly improve calibration efficiency；Only need to be by optical alignment
Interface connects outside PON equipment light business interface to be calibrated once, can complete PON equipment multi-wavelength to be calibrated,
Many power points, the automatic calibration of bidirectional transmit-receive luminous power.
Under centralized control unit programme-control, adjust each module and PON equipment to be calibrated, it is achieved PON equipment is many
Wavelength, many power points, the calibration automatically of bidirectional transmit-receive luminous power and inspection automatically, and automatic discrimination assay, and manage day
Will achieves, automatic information statistical analysis, promotes quality management and quality control ability.
Optical network device bidirectional transmit-receive luminous power accurate calibration, makes the optical-fiber network optical node can be accurate to the transmitting power of optical node
Adjust, more preferably meet optical-fiber network and run.
Optical-fiber network runs the transmitting of equipment light, receives the important monitor control index that power is OAM, and these light net equipment are only at present
Can be rough calibration, error be big, and this makes the transmitting of the light device monitored of OAM, received optical power only as passing judgment on light
One reference of fine network link quality.Present invention achieves PON equipment bidirectional transmit-receive luminous power accurate calibration, operation
PON equipment also becomes optical metrology device simultaneously so that the transmitting of the light device monitored of OAM, received optical power can become
For passing judgment on a standard and judgment of fiber optic network link-quality, thus fiber optic network on-line quality evaluation and monitoring are produced actively
Profound significance.
Described can include optical branching device I, built in light energy meter I by real-time online output light sampling module, optical branching device I input is even
Connecing light adjustment module, optical branching device I outfan one tunnel connects and can input light sampling module by real-time online, optical branching device I output
The other end connects built in light energy meter I, built in light energy meter I and connects centralized control unit, can monitor optical alignment interface in real time
Output optical power；Can include optical branching device II, built in light energy meter II by real-time online input light sampling module, optical branching device II is defeated
Chu Duan mono-tunnel connects and can export light sampling module by real-time online, and the other end of optical branching device II output connects built in light energy meter II,
Optical branching device II input connects optical alignment interface, and built in light energy meter II connects centralized control unit, can monitor optical alignment in real time
Interface input optical power；Can real-time online output light sampling module with can real-time online input light sampling module position two-way from
Position in dynamic alignment unit can exchange, i.e. light adjustment module, can real-time online input light sampling module and can real-time online defeated
Go out light sampling module to be sequentially connected with.
Described first step self calibration includes inputting optical channel self calibration and output optical channel self calibration, wherein, exports optical channel self-correcting
Quasi-process is: external perimysium reference light power meter connect optical alignment interface, and with centralized control unit communication, centralized control unit is in journey
Sequence controls lower the adjustment light source mode of light adjustment module, wavelength, optical output power, makes Output optical power reach predefined parameter, outward
Ministerial standard light power meter and built in light energy meter I measure Output optical power simultaneously, and centralized control unit reads external perimysium reference luminous power
The numerical value of meter, and this numerical value is passed to built in light energy meter I, with external perimysium reference luminous power as mete-wand, to built in light merit
Rate I meter is calibrated；Fig. 4 illustrates system in automatic mode, with single mode three wavelength (such as 1310nm, 1490nm, 1550nm)
As a example by output optical channel self calibration flow process, Fig. 6 is as a example by 1310nm wavelength, it is shown that output the self-alignment one of optical channel
Flow process.
Output optical channel self-calibration process in, centralized control unit adjust under program light adjustment module light source mode,
Wavelength, optical output power, make Output optical power reach predefined parameter, same by external perimysium reference light power meter and built in light energy meter I
Time measure light adjustment module Output optical power.
Input optical channel self-calibration process is: after output optical channel self calibration completes, by two light overlapping two-way automatic alignment unit
Calibration interface connect, two overlap two-way automatic alignment units all with centralized control unit communication, two set two-way automatic alignment units distinguish
With the built in light power I of the other side as mete-wand, oneself built in light energy meter II is calibrated, Fig. 5 give system from
Under dynamic model formula, the input optical channel self calibration flow process as a example by single mode three wavelength (such as 1310nm, 1490nm, 1550nm),
Fig. 7 is as a example by 1310nm wavelength, it is shown that the self-alignment a kind of flow process of input optical channel.
Device self calibration makes built in light energy meter I and built in light energy meter II become calibration standard source, as whole calibrating installation
Calibration foundation and judge, built in light energy meter I can measure or reflect the optical power value that optical alignment interface sends accurately；Built-in
Light power meter II can measure or reflect the optical power value of optical alignment interface accurately, and Fig. 8-11 gives PON equipment and connects
Receiving light and send out calibration of power signal, principle is as follows:
A.PON network equipment received optical power calibrate: PON equipment to be calibrated connect optical alignment interface, and with center control
Unit communications, centralized control unit adjusts the light source mode of light adjustment module, wavelength, optical output power under program, makes
Output optical power reaches predefined parameter, and centralized control unit reads the numerical value of built in light energy meter I, and outside this numerical value is passed to
Portion's PON to be calibrated equipment, calibrates outside PON equipment received optical power to be calibrated；Thus realize in difference
Under service wavelength, different capacity point be automatically adjusted, automatically calibration PON equipment received optical power.
The B.PON network equipment launches optical power calibration: outside PON equipment to be calibrated connects optical alignment interface, and and center
Control unit communication, it is to launch luminous power state that centralized control unit adjusts PON equipment to be calibrated under program, and
Watt level, built in light energy meter is launched in adjusting each service wavelength of PON equipment to be calibrated and its business adjusting power control interval
The II transmitting luminous power monitoring PON equipment to be calibrated in real time, centralized control unit reads the numerical value of built in light energy meter II,
And this numerical value is passed to outside PON equipment to be calibrated, outside PON equipment to be calibrated is launched luminous power and carries out school
Accurate；Thus realize under different business wavelength, different capacity point is automatically adjusted, automatically calibration PON equipment launches luminous power.
Said method will realize each functional module combination of calibration, and be integrated and connected；And application can exist in real time in a calibration process
Line exports light sampling module and can realize calibrating same light source real-time sampling by real-time online input light sampling module；In center control
Under unit controls, multiple light courcess, multi-wavelength, many power points bidirectional transmit-receive luminous power are calibrated automatically；Once connect and just can calibrate in batches,
Need not change.
Centralized control unit has communication function, may be implemented in outside or remote computer program controls lower or interactive instruction control
Under calibrating installation is operated.
Described smooth adjustment module includes multi-wavelength stable light source, wavelength switching control module and optical attenuator, the many ripples being sequentially connected with
Long stabilized light source, wavelength switching control module are connected with control unit respectively with optical attenuator, and multi-wavelength stable light source provides calibration
The light of required wavelength, wavelength switching control module controls incision at centralized control unit and changes the light of respective wavelength to corresponding port, light
Attenuator carries out light intensity decays regulation under the control of centralized control unit, and optical attenuator is the optical attenuation that can be automatically adjusted gain
Device, under the control instruction of centralized control unit, automatically carries out gain transformations, and then regulates the power level of its output optical signal.
Described multi-wavelength stable light source includes that the output of single mode light source or multimode light sources export or both have concurrently, the most corresponding with it,
Described two-way automatic alignment unit is the two-way automatic alignment unit being suitable for single mode；Or it is automatic for being suitable for the two-way multimode of multimode
Alignment unit；Or both have concurrently.
The structure composition of two-way automatic alignment unit is applicable to the automatic alignment unit of bidirection single-mode, the automatic alignment unit of two-way multimode；
That is, its basic structure is consistent, and according to single mode light source, the difference of multimode light sources, relevant interface etc. does accommodation.
In order to improve the performance motility of device further, described wavelength switching control module also sets up external light source access port.
Described smooth adjustment module, can real-time online output light sampling module and can the real-time online input collection that is integrated of light sampling module
Become assembly or be the most independent parts, in other words multi-wavelength stable light source, wavelength switching control module, optical attenuator, can be real
Time export light sampling module and can the real-time online input integrated package that is integrated of light sampling module or for the most independent portion online
Part.
Described centralized control unit uses microcontroller component or stand-alone computer, can be with multi-wavelength stable light source, wavelength switching control
Molding block, optical attenuator, can real-time online input light sampling module and can real-time online output light sampling module be integrated integrated
Assembly or be the most independent parts, if the integrated package that each assembly of device, unit are packaged as a whole, makes because of the simple of structure
Obtaining reliability to improve, space and cost are also greatly decreased, if each assembly of device, unit are made up of autonomous device, during use respectively
Being attached according to the mode described in literary composition, the motility of system strengthens.
The built-in communication part of described centralized control unit or connection external communication assembly, with PON equipment to be calibrated, outside
Intelligent computer communicate, centralized control unit pass through communication part, is connected with external smart computer, and carry out data exchange with
Communication；Form of communication is wired or wireless, serial ports or network interface, and then realizes long-range, controlled in wireless；For easy to operate, can be
Equipment sets up Input/Output Device interface, and input equipment interface connects input equipment, such as keyboard；Outut device interface connects
Outut device, such as display screen, the most integrated input, the LCD touch screen of output function.
If no special instructions, the optical device described in literary composition is suitable for single mode, multimode two ways.Device used in literary composition also may be used
According to custom, referred to as instrument, platform, system, built in light energy meter described in literary composition, be for external perimysium reference light power meter for,
Particular determination is not made in its position, as long as realizing its function.
Embodiment 2:
As shown in figure 12, the present embodiment can export light sampling module and can share by real-time online output light sampling module by real-time online
One bi-directional light shunt, bi-directional light splitter output is respectively connecting to built in light energy meter I and built in light energy meter II, double
To optical branching device one road, input is connected to optical alignment interface, and another road input is connected to light adjustment module, built in light energy meter
I and built in light energy meter II connect centralized control unit respectively, and other structures of the present embodiment are same as in Example 1.
Embodiment 3:
As shown in figure 13, optical branching device II is replaced with light path switching device on the basis of embodiment 1 by the present embodiment, such as light
Switch, photoswitch timesharing is connected in optical link, is just switched to built in light energy meter II when optical alignment interface input light.
Embodiment 4:
As shown in figure 14, built in light energy meter is connected to bi-directional light shunt, timesharing calibration or survey by light path switching device timesharing
The input of amount optical alignment interface, output light.
Operation instruction:
PON equipment bidirectional transmit-receive luminous power self-checking device first carries out self calibration；
PON equipment bidirectional transmit-receive luminous power self-checking device self calibration includes exporting optical channel self calibration and input optical channel
Self calibration；
Then as calibration foundation and the judge of whole PON equipment bidirectional transmit-receive luminous power self-checking device；
Multi-wavelength stable light source provides the light of the required wavelength of calibration；
The optical attenuator that can be automatically adjusted gain adjusts output, reaches required calibration point；
Wavelength switching control module is used for switching the light of respective wavelength to corresponding port；
Centralized control unit is the control centre of whole device, it is achieved the function such as process control, Communication Control.
Centralized control unit combines two-way automatic alignment unit, by automatically controlling, it is achieved that multi-wavelength is automatically calibrated and checks,
The precision of comprehensive coverage calibration and reliability.
Self-checking device elder generation self calibration, is the automatic preparation before using calibration automatically；
Then, only optical alignment interface need to be connected outside PON equipment to be calibrated once, and set up logical with centralized control unit
Letter connects, and can complete PON equipment multi-wavelength to be calibrated, many power points, the automatic calibration of bidirectional transmit-receive luminous power.
It is clear that the present invention is not limiting as calibrating PON equipment bidirectional transmit-receive luminous power, at the finger of inventive concept
Lead down, it is also possible to for wavelength division multiplexed network, communication optical module and the measurement of other parameters and related application.
Although the present invention illustrates with reference to preferred embodiment and accompanying drawing, however above-mentioned explanation should be regarded as illustrative rather than
Restricted, change that those skilled in the art is made according to the spirit of the present invention and amendment should belong to the protection domain of this patent.
Claims (5)
1. a PON equipment bidirectional transmit-receive luminous power automatic calibrating method, it is characterised in that comprise the following steps:
The first step, PON equipment bidirectional transmit-receive luminous power self-checking device carries out self calibration；
Second step, outside PON equipment to be calibrated connects PON equipment bidirectional transmit-receive luminous power self-checking device, right
The transmitting-receiving luminous power of PON equipment to be calibrated is calibrated；
Above-mentioned PON equipment bidirectional transmit-receive luminous power self-checking device, the automatic school of PON equipment bidirectional transmit-receive luminous power
Standard apparatus, including the most a set of two-way automatic alignment unit and centralized control unit, described two-way automatic alignment unit and center control
Unit processed is connected, light adjustment module that two-way automatic alignment unit includes being sequentially connected with, can real-time online output light sampling module and
Light sampling module can be inputted by real-time online, can be connected with optical alignment interface by real-time online input light sampling module.
PON equipment bidirectional transmit-receive luminous power automatic calibrating method the most according to claim 1, it is characterised in that institute
State second step and PON equipment bidirectional transmit-receive luminous power to be calibrated carried out synchronous calibration simultaneously, mainly include following two aspect:
A.PON network equipment received optical power is calibrated: outside PON equipment to be calibrated connects optical alignment interface, and and center
Control unit communication, can monitor the received optical power of PON equipment to be calibrated by real-time online output light sampling module in real time, with
Can real-time online output light sampling module collection result be mete-wand, outside PON equipment received optical power to be calibrated is entered
Row calibration；
The B.PON network equipment launches optical power calibration: outside PON equipment to be calibrated connects optical alignment interface, and and center
Control unit communication, can monitor the transmitting luminous power of PON equipment to be calibrated by real-time online input light sampling module in real time, with
Can real-time online input light sampling module collection result be mete-wand, outside PON equipment to be calibrated be launched luminous power and enters
Row calibration.
PON equipment bidirectional transmit-receive luminous power automatic calibrating method the most according to claim 1, it is characterised in that institute
Stating and can include optical branching device I, built in light energy meter I by real-time online output light sampling module, optical branching device I input connects light and adjusts
Joint module, optical branching device I outfan one tunnel connects and can input light sampling module, the other end of optical branching device I output by real-time online
Connect built in light energy meter I, built in light energy meter I and connect centralized control unit, the output light of optical alignment interface can be monitored in real time
Power；Optical branching device II, built in light energy meter II, optical branching device II outfan one can be included by real-time online input light sampling module
Road connects and can export light sampling module by real-time online, and the other end of optical branching device II output connects built in light energy meter II, light branch
Device II input connects optical alignment interface, and built in light energy meter II connects centralized control unit, can monitor optical alignment interface in real time defeated
Enter luminous power.
PON equipment bidirectional transmit-receive luminous power automatic calibrating method the most according to claim 3, it is characterised in that institute
State first step self calibration to include inputting optical channel self calibration and exporting optical channel self calibration, wherein,
Output optical channel self-calibration process be: external perimysium reference light power meter connect optical alignment interface, and with centralized control unit communication,
Centralized control unit adjusts the light source mode of light adjustment module, wavelength, optical output power under program, makes Output optical power
Reaching predefined parameter, external perimysium reference light power meter and built in light energy meter I and measure Output optical power simultaneously, centralized control unit is read
Take the numerical value of external perimysium reference light power meter, and this numerical value is passed to built in light energy meter I, with external perimysium reference luminous power for metering
Benchmark, calibrates built-in luminous power I meter；
Input optical channel self-calibration process is: after output optical channel self calibration completes, by two light overlapping two-way automatic alignment unit
Calibration interface connect, two overlap two-way automatic alignment units all with centralized control unit communication, two set two-way automatic alignment units distinguish
With the built in light power I of the other side as mete-wand, oneself built in light energy meter II is calibrated；
Input optical channel self calibration terminates rear device self calibration and terminates.
PON equipment bidirectional transmit-receive luminous power automatic calibrating method the most according to claim 4, it is characterised in that institute
Stating input optical channel self-calibration process is:
Input optical channel self calibration use two set two-way automatic alignment units be called two-way automatic alignment unit A and two-way from
Dynamic alignment unit B, centralized control unit under program, adjust the light source mode of two-way automatic alignment unit A, wavelength,
Optical output power, makes Output optical power reach predefined parameter；Centralized control unit reads two-way automatic alignment unit A built in light merit
Rate meter I numerical value, and this numerical value is passed to two-way automatic alignment unit B built in light energy meter II, with two-way automatic alignment unit
A built in light power I is mete-wand, calibrates two-way automatic alignment unit B built in light energy meter II；In like manner, center
Control unit under program, adjusts the light source mode of two-way automatic alignment unit B, wavelength, optical output power, makes output
Luminous power reaches predefined parameter, and centralized control unit reads two-way automatic alignment unit B built in light energy meter I numerical value, and should
Numerical value passes to two-way automatic alignment unit A built in light energy meter II, with two-way automatic alignment unit B built in light power I for counting
Amount benchmark, calibrates two-way automatic alignment unit A built in light energy meter II.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610250363.XA CN105933058B (en) | 2016-04-20 | 2016-04-20 | PON network equipment bidirectional transmit-receive optical power automatic calibrating method |
| PCT/CN2017/080700 WO2017181916A1 (en) | 2016-04-20 | 2017-04-17 | Method for automatically calibrating bidirectional light receiving and emitting power of pon network device |
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| CN201610250363.XA CN105933058B (en) | 2016-04-20 | 2016-04-20 | PON network equipment bidirectional transmit-receive optical power automatic calibrating method |
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| CN106788705A (en) * | 2016-11-30 | 2017-05-31 | 罗江君 | A kind of light power meter integrated test facility |
| WO2017181916A1 (en) * | 2016-04-20 | 2017-10-26 | 山东信通电子股份有限公司 | Method for automatically calibrating bidirectional light receiving and emitting power of pon network device |
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| CN105933058B (en) | 2019-01-25 |
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