CN104065412A - Method for protection switching of optical network and device thereof - Google Patents
Method for protection switching of optical network and device thereof Download PDFInfo
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- CN104065412A CN104065412A CN201310093843.6A CN201310093843A CN104065412A CN 104065412 A CN104065412 A CN 104065412A CN 201310093843 A CN201310093843 A CN 201310093843A CN 104065412 A CN104065412 A CN 104065412A
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Abstract
The invention discloses a method for protection switching of an optical network, which comprises the steps of: performing low-frequency modulation on wavelength signals, and loading labels on the wavelength signals; combining the wavelength signals, dividing to a working channel and a protecting channel, and detecting total power values of the wavelength signals of the working channel and the protecting channel; and determining whether protection switching operation of the optical network is performed according to the wavelength signal total power values of the working channel and the protecting channel and the wavelength signal power values which respectively correspond with the working channel and the protecting channel. The method and the device provided by the invention prevent incapability of transmitting business because of abnormal power value of partial single wavelength signal in the working channel and ensure normal transmission of the business.
Description
Technical field
The present invention relates to optical-fiber network technical field, especially relate to a kind of method and apparatus of optical network protection turning.
Background technology
Optical network protection turning system is the important component part of optical communication system, and optical cable cut-out, equipment failure or optical connector such as are pulled out at the accident all can cause service disconnection.Therefore at important service span line, configure a protection channel and be used for guaranteeing that business normal transmission is very important.Traditional optical network protection turning is the power of monitoring passage and protection channel respectively, and relatively the difference of the two is switched realization to determine starting protection whether.When service aisle power is lower than protection threshold value, and the power of protection channel is higher than protection during threshold value, and starting protection is switched, and reaches the object of assurance business normal transmission.
In prior art there is following defect in existing optical network protection turning: owing to only having monitored service aisle and the protection channel gross power after multiplexing separately, cannot monitor the power of each wavelength channel signal.But in wavelength-division multiplex system; multiplex section generally need to transmit 40 ~ 96 wavelength; and the sending out power, close the passage Insertion Loss difference of partial wave unit, the impact of the various factorss such as gain flatness, noise and nonlinear effect of amplifier of each wavelength channel laser; in optical fiber, the power of each wavelength channel is not identical; thereby may occur in passage that gross power is higher than protection threshold value, but the power of subwave long-channel is lower than the phenomenon of protection threshold value.Prior art cannot be carried out protection and switch to this, the business that finally affects is transmitted normally.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and apparatus of optical network protection turning; guarantee in total wavelength signals performance number of service aisle higher than protection threshold value; and in service aisle subwave long letter performance number lower than protection during threshold value; still carry out optical network protection turning operation, prevent cannot transport service phenomenon lower than protection threshold value because of subwave long letter performance number in service aisle generation.
The present invention proposes a kind of method of optical network protection turning, comprising:
Dui Ge road wavelength signals is carried out low frequency modulations, and Wei Ge road wavelength signals loads label;
Merge described each road wavelength signals, and divide to service aisle and protection channel testing passage and protection channel wavelength signals total power value separately equally;
Wavelength signals by service aisle and protection channel is carried out to demodulation, obtain label corresponding to each road wavelength signals, according to described label, obtain service aisle and each self-corresponding each road wavelength signals performance number of protection channel;
According to described service aisle and each self-corresponding each road wavelength signals performance number of protection channel wavelength signals total power value, service aisle and protection channel separately, determine whether to carry out optical network protection turning operation.
Preferably, described according to described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number separately, determine whether to carry out optical network protection turning operation and specifically comprise:
Judge that whether described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number is separately normal;
When the wavelength signals total power value of protection channel, the corresponding Ge of protection channel road wavelength signals performance number normal; In the undesired and/or service aisle of the wavelength signals total power value of service aisle, there is abnormal one or more wavelength signals of wavelength signals performance number, carry out optical network protection turning operation.
Preferably, described Dui Ge road wavelength signals is carried out low frequency modulations, and Wei Ge road wavelength signals loads label and specifically comprises:
Dui Ge road wavelength signals arranges corresponding frequency as label, for each frequency produces the corresponding signal of telecommunication, each signal of telecommunication is modulated in corresponding each road wavelength signals.
Preferably, the described modulation system that each signal of telecommunication is modulated in corresponding each road wavelength signals is EVOA mode or ITLA mode.
Preferably, described the wavelength signals by service aisle and protection channel is carried out to demodulation, obtains label corresponding to each road wavelength signals, according to described label, obtain service aisle and each self-corresponding each road wavelength signals performance number of protection channel specifically comprises:
The wavelength signals of service aisle and protection channel is carried out respectively to opto-electronic conversion and form the signal of telecommunication, digital signal corresponding to service aisle and the protection channel signal of telecommunication separately convert to;
Service aisle and protection channel digital signal are separately carried out to frequency spectrum calculating, draw in each road wavelength signals of service aisle and protection channel correspondence separately the range value as frequency He this frequency of label;
According to the range value of each frequency, each self-corresponding each road wavelength signals performance number of evaluation work passage and protection channel.
The another device that proposes a kind of optical network protection turning of the present invention, comprising:
Label load-on module, carries out low frequency modulations for Dui Ge road wavelength signals, and Wei Ge road wavelength signals loads label;
Merge and divide module equally, for merging described each road wavelength signals, and divide equally to service aisle and protection channel;
Detection module, for detection of service aisle and protection channel wavelength signals total power value separately;
Demodulation module, carries out demodulation for the wavelength signals to by service aisle and protection channel, obtains label corresponding to each road wavelength signals, according to described label, obtains service aisle and the corresponding Ge of protection channel road wavelength signals performance number;
Optical network protection turning module, for according to described service aisle and each self-corresponding each road wavelength signals performance number of protection channel wavelength signals total power value, service aisle and protection channel separately, determines whether to carry out optical network protection turning operation.
Preferably, whether described optical network protection turning module is normal specifically for judging described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number separately; Judge that whether described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number is separately normal; When the wavelength signals total power value of protection channel, the corresponding Ge of protection channel road wavelength signals performance number normal; In the undesired and/or service aisle of the wavelength signals total power value of service aisle, there is abnormal one or more wavelength signals of wavelength signals performance number, carry out optical network protection turning operation.
Preferably, described label load-on module, arranges corresponding frequency as label specifically for Dui Ge road wavelength signals, for each frequency produces the corresponding signal of telecommunication, each signal of telecommunication is modulated in corresponding each road wavelength signals.
Preferably, the described modulation system that each signal of telecommunication is modulated in corresponding each road wavelength signals is EVOA mode or ITLA mode.
Preferably, described demodulation module, concrete also for the wavelength signals of service aisle and protection channel being carried out respectively to the opto-electronic conversion formation signal of telecommunication, digital signal corresponding to service aisle and the protection channel signal of telecommunication separately convert to; Service aisle and protection channel digital signal are separately carried out to frequency spectrum calculating, draw in each road wavelength signals of service aisle and protection channel correspondence separately the range value as frequency He this frequency of label; And according to the range value of each frequency, each self-corresponding each road wavelength signals performance number of evaluation work passage and protection channel.
The method and apparatus of a kind of optical network protection turning provided by the present invention, by the wavelength signals in service aisle and protection channel, carry out demodulation, obtain each road wavelength signals corresponding label, according to described label, obtain the mode of service aisle and each self-corresponding each road wavelength signals performance number of protection channel, when the wavelength signals total power value of service aisle normal, and the part single channel wavelength signal power of service aisle is worth when undesired, still carry out optical network protection turning operation, thereby avoided because of the undesired generation that cannot transport service phenomenon of part single channel wavelength signal power value in service aisle, guaranteed the normal transmission of business.
Accompanying drawing explanation
Fig. 1 is the flow chart of method one embodiment of optical network protection turning of the present invention;
Fig. 2 is the structural representation of device one embodiment of optical network protection turning of the present invention.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, method one embodiment that the present invention proposes a kind of optical network protection turning is proposed, comprising:
Step S101, Dui Ge road wavelength signals are carried out low frequency modulations, and Wei Ge road wavelength signals loads label.The degree of depth that this step Zhong Duige road wavelength signals is carried out low frequency modulations is identical, and the modulation depth of Ru Duige road wavelength signals is all controlled in 5%.
This step specifically comprises following processing: Dui Ge road wavelength signals arranges corresponding frequency as label, for each frequency produces the corresponding signal of telecommunication, each signal of telecommunication is modulated in corresponding each road wavelength signals.The wavelength signals of not going the same way arranges different frequencies.
In addition, in this step, the described modulation system that each signal of telecommunication is modulated in corresponding each road wavelength signals is EVOA mode or ITLA mode.
Step S102, described each road wavelength signals of merging, and divide to service aisle and protection channel testing passage and protection channel wavelength signals total power value separately equally.
In this step, first Jiang Ge road wavelength signals merges; then will merge Hou Ge road wavelength signals mean allocation in service aisle and protection channel; be to exist and merge Qian Ge road wavelength signals in service aisle, in protection channel, also exist and merge Qian Ge road wavelength signals.Wherein, the wavelength signals total power value of service aisle refers to the total power value that has Ge road wavelength signals in service aisle; The wavelength signals total power value of protection channel refers to that protection channel is at the total power value that has Ge road wavelength signals.
In this step, adopt photoelectric detective circuit testing passage and protection channel wavelength signals total power value separately.Wherein, in testing process, be from the wavelength signals of described service aisle and the wavelength signals of protection channel, separate fraction wavelength signals (as obtain 5% of service aisle wavelength signals, obtain protection channel wavelength signals 5%) carry out performance number detection.
Step S103, the wavelength signals by service aisle and protection channel is carried out to demodulation, obtain label corresponding to each road wavelength signals, according to described label, obtain service aisle and each self-corresponding each road wavelength signals performance number of protection channel.
In this step; from the wavelength signals of service aisle and protection channel obtain sub-fraction wavelength signals first respectively; then the sub-fraction wavelength signals of obtaining in wavelength signals (as obtaining 1% in wavelength signals) is carried out to demodulation; obtain the label of service aisle Zhong Ge road wavelength signals, and the label of protection channel Zhong Ge road wavelength signals.
The concrete processing procedure of this step is as follows: the wavelength signals of service aisle and protection channel is carried out respectively to opto-electronic conversion and form the signal of telecommunication, digital signal corresponding to service aisle and the protection channel signal of telecommunication separately convert to; Service aisle and protection channel digital signal are separately carried out to frequency spectrum calculating, draw in each road wavelength signals of service aisle and protection channel correspondence separately the range value as frequency He this frequency of label; According to the range value of each frequency, each self-corresponding each road wavelength signals performance number of evaluation work passage and protection channel.
Wherein, in the present embodiment, before telecommunication signal is converted to digital signal, can first to service aisle and the protection channel signal of telecommunication separately, amplify processing, and then be converted to digital signal.In the present embodiment, be that the mode of sampling by ADC is converted to digital signal to above-mentioned service aisle and the protection channel signal of telecommunication separately.
In addition; in the present embodiment, service aisle and protection channel digital signal separately being carried out to spectrometer calculates detailed process and is: first service aisle and protection channel digital signal are separately sampled, then respectively service aisle and protection channel digital signal separately after sampling are carried out to frequency spectrum calculating.
Wherein, range value corresponding to different frequencies varies in size.Range value stool and urine by the frequency as label can calculate corresponding Yi road wavelength signals performance number.The method that this step is carried out frequency spectrum calculating to digital signal can be CZT transform method, can be also FFT transform method.
Step S104, according to described service aisle and each self-corresponding each road wavelength signals performance number of protection channel wavelength signals total power value, service aisle and protection channel separately, determine whether to carry out optical network protection turning operation.
The concrete processing procedure of this step is as follows: judge that whether described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number is separately normal;
When the wavelength signals total power value of protection channel, the corresponding Ge of protection channel road wavelength signals performance number normal; The corresponding Ge of the wavelength signals total power value of service aisle and/or service aisle road wavelength signals performance number is undesired, carries out optical network protection turning operation.
Wherein, judge that whether normal described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number detailed process be separately as follows: described service aisle and protection channel wavelength signals total power value are separately compared with the first default power threshold; The corresponding Ge road wavelength signals performance number of service aisle and protection channel and the second power threshold are compared.When the wavelength signals total power value of protection channel is greater than the first default power threshold, show that the wavelength signals total power value of protection channel is normal, otherwise show that the wavelength signals total power value of protection channel is undesired.When protection channel Zhong Ge road, wavelength signals performance number is greater than the second power threshold, shows that protection channel Ge road wavelength signals performance number is normal, otherwise shows that protection channel Ge road wavelength signals performance number is not exclusively normal.When the wavelength signals total power value of service aisle is protected threshold value lower than the first default power; or the wavelength signals total power value of service aisle is on a declining curve; the wavelength signals total power value that shows service aisle is undesired, otherwise shows that the wavelength signals total power value of service aisle is normal.In service aisle, exist performance number to be less than one or more wavelength signals of the second default power protection threshold value; show that in service aisle, this one or more wavelength signals performance number is undesired, otherwise show that service aisle Ge road wavelength signals performance number is normal.
The embodiment of the method for the above-mentioned optical network protection turning providing, by the wavelength signals in service aisle and protection channel, carry out demodulation, obtain each road wavelength signals corresponding label, according to described label, obtain the mode of service aisle and each self-corresponding each road wavelength signals performance number of protection channel, when the wavelength signals total power value of service aisle normal, and the part single channel wavelength signal power of service aisle is worth when undesired, still carry out optical network protection turning operation, thereby avoided because of the undesired generation that cannot transport service phenomenon of part single channel wavelength signal power value in service aisle, prior art provides the judgement foundation of more reliable optical network protection turning relatively, further guaranteed the normal transmission of business.
Referring to Fig. 2, device 100 1 embodiment of a kind of optical network protection turning of the present invention are proposed, comprising: module 120, detection module 130, demodulation module 140, optical network protection turning module 150 are divided in label load-on module 110, merging equally.Wherein, described label load-on module 110, carries out low frequency modulations for Dui Ge road wavelength signals, and Wei Ge road wavelength signals loads label.Module 120 is divided in described merging equally, for merging described each road wavelength signals, and divides equally to service aisle and protection channel.Described detection module 130, for detection of service aisle and protection channel wavelength signals total power value separately.Described demodulation module 140, carries out demodulation for the wavelength signals to by service aisle and protection channel, obtains label corresponding to each road wavelength signals, according to described label, obtains service aisle and the corresponding Ge of protection channel road wavelength signals performance number.Described optical network protection turning module 150, for according to described service aisle and each self-corresponding each road wavelength signals performance number of protection channel wavelength signals total power value, service aisle and protection channel separately, determines whether to carry out optical network protection turning operation.
In the present embodiment, the degree of depth that label load-on module 110Dui Ge road wavelength signals is carried out low frequency modulations is identical, and the modulation depth of Ru Duige road wavelength signals is all controlled in 5%.
Further; in device 100 embodiment of above-mentioned optical network protection turning, described label load-on module 110, arranges corresponding frequency as label specifically for Dui Ge road wavelength signals; for each frequency produces the corresponding signal of telecommunication, each signal of telecommunication is modulated in corresponding each road wavelength signals.The wavelength signals of not going the same way arranges different frequencies.Each label is for identifying the wavelength signals power of a corresponding road wavelength signals.The described modulation system that each signal of telecommunication is modulated in corresponding each road wavelength signals is EVOA mode or ITLA mode.
Further, in device 100 embodiment of above-mentioned optical network protection turning, first by described merging, divide module 120Jiang Ge road wavelength signals equally and merge, then will merge Hou Ge road wavelength signals mean allocation in service aisle and protection channel.Be to exist and merge Qian Ge road wavelength signals in service aisle, in protection channel, also exist and merge Qian Ge road wavelength signals.Wherein, the wavelength signals total power value of service aisle described in above-described embodiment refers to the total power value that has Ge road wavelength signals in service aisle; The wavelength signals total power value of described protection channel refers to that protection channel is at the total power value that has Ge road wavelength signals.Then by described detection module 130, adopt photoelectric detective circuit testing passage and protection channel wavelength signals total power value separately.Wherein, in testing process, be from the wavelength signals of described service aisle and the wavelength signals of protection channel, separate fraction wavelength signals (as obtain 5% of service aisle wavelength signals, obtain protection channel wavelength signals 5%) carry out performance number detection.
Further, in device 100 embodiment of above-mentioned optical network protection turning, described demodulation module 140, concrete also for the wavelength signals of service aisle and protection channel being carried out respectively to the opto-electronic conversion formation signal of telecommunication, digital signal corresponding to service aisle and the protection channel signal of telecommunication separately convert to; Service aisle and protection channel digital signal are separately carried out to frequency spectrum calculating, draw in each road wavelength signals of service aisle and protection channel correspondence separately the range value as frequency He this frequency of label; According to the range value of each frequency, each self-corresponding each road wavelength signals performance number of evaluation work passage and protection channel.
Wherein, in the present embodiment, before telecommunication signal is converted to digital signal, can first to service aisle and the protection channel signal of telecommunication separately, amplify processing, and then be converted to digital signal.In the present embodiment, be that the mode of sampling by ADC is converted to digital signal to above-mentioned service aisle and the protection channel signal of telecommunication separately.
In addition, in the present embodiment, demodulation module 140, concrete also for service aisle and protection channel digital signal are separately sampled, and then respectively service aisle and protection channel digital signal separately after sampling carried out to frequency spectrum calculating.
The range value corresponding due to different frequencies varies in size.Therefore the stool and urine of the range value by the frequency as label can calculate corresponding Yi road wavelength signals performance number.In this enforcement, the method that described conciliation module 140 is carried out frequency spectrum calculating to each digital signal can be CZT transform method, can be also FFT transform method.Wherein, described demodulation module 140 obtains sub-fraction wavelength signals first respectively from total wavelength signals of service aisle and protection channel, then the sub-fraction wavelength signals of obtaining in total wavelength signals (as obtaining 1% in wavelength signals) is carried out to demodulation.
Further, in device 100 embodiment of above-mentioned optical network protection turning, whether described optical network protection turning module 150 is concrete also normal for judging described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number separately; Judge that whether described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number is separately normal; When the wavelength signals total power value of protection channel, the corresponding Ge of protection channel road wavelength signals performance number normal; In the undesired and/or service aisle of the wavelength signals total power value of service aisle, there is abnormal one or more wavelength signals of wavelength signals performance number, carry out optical network protection turning operation.
Wherein, optical network protection turning module 150 judges that whether normal described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number detailed process be separately as follows: described service aisle and protection channel wavelength signals total power value are separately compared with the first default power threshold; The corresponding Ge road wavelength signals performance number of service aisle and protection channel and the second power threshold are compared.When the wavelength signals total power value of protection channel is greater than the first default power threshold, show that the wavelength signals total power value of protection channel is normal, otherwise show that the wavelength signals total power value of protection channel is undesired.When protection channel Zhong Ge road, wavelength signals performance number is greater than the second power threshold, shows that protection channel Ge road wavelength signals performance number is normal, otherwise shows that protection channel Ge road wavelength signals performance number is not exclusively normal.When the wavelength signals total power value of service aisle is protected threshold value lower than the first default power; or the wavelength signals total power value of service aisle is on a declining curve; the wavelength signals total power value that shows service aisle is undesired, otherwise shows that the wavelength signals total power value of service aisle is normal.In service aisle, exist performance number to be less than one or more wavelength signals of the second default power protection threshold value; show that in service aisle, this one or more wavelength signals performance number is undesired, otherwise show that service aisle Ge road wavelength signals performance number is normal.
Device 100 embodiment of the above-mentioned optical network protection turning providing, by the wavelength signals in service aisle and protection channel, carry out demodulation, obtain each road wavelength signals corresponding label, according to described label, obtain the mode of service aisle and each self-corresponding each road wavelength signals performance number of protection channel, when the wavelength signals total power value of service aisle normal, and the part single channel wavelength signal power of service aisle is worth when undesired, still carry out optical network protection turning operation, thereby avoided because of the undesired generation that cannot transport service phenomenon of part single channel wavelength signal power value in service aisle, prior art provides the judgement foundation of more reliable optical network protection turning relatively, further guaranteed the normal transmission of business.
Should be understood that; these are only the preferred embodiments of the present invention; can not therefore limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a method for optical network protection turning, is characterized in that, comprising:
Dui Ge road wavelength signals is carried out low frequency modulations, and Wei Ge road wavelength signals loads label;
Merge described each road wavelength signals, and divide to service aisle and protection channel testing passage and protection channel wavelength signals total power value separately equally;
Wavelength signals by service aisle and protection channel is carried out to demodulation, obtain label corresponding to each road wavelength signals, according to described label, obtain service aisle and each self-corresponding each road wavelength signals performance number of protection channel;
According to described service aisle and each self-corresponding each road wavelength signals performance number of protection channel wavelength signals total power value, service aisle and protection channel separately, determine whether to carry out optical network protection turning operation.
2. the method for optical network protection turning according to claim 1; it is characterized in that; described according to described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number separately, determine whether to carry out optical network protection turning operation and specifically comprise:
Judge that whether described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number is separately normal;
When the wavelength signals total power value of protection channel, the corresponding Ge of protection channel road wavelength signals performance number normal; In the undesired and/or service aisle of the wavelength signals total power value of service aisle, there is abnormal one or more wavelength signals of wavelength signals performance number, carry out optical network protection turning operation.
3. the method for optical network protection turning according to claim 1, is characterized in that, described Dui Ge road wavelength signals is carried out low frequency modulations, and Wei Ge road wavelength signals loads label and specifically comprises:
Dui Ge road wavelength signals arranges corresponding frequency as label, for each frequency produces the corresponding signal of telecommunication, each signal of telecommunication is modulated in corresponding each road wavelength signals.
4. the method for optical network protection turning according to claim 3, is characterized in that, the described modulation system that each signal of telecommunication is modulated in corresponding each road wavelength signals is EVOA mode or ITLA mode.
5. the method for optical network protection turning according to claim 1; it is characterized in that; described the wavelength signals by service aisle and protection channel is carried out to demodulation; obtain label corresponding to each road wavelength signals, according to described label acquisition service aisle and each self-corresponding each road wavelength signals performance number of protection channel, specifically comprise:
The wavelength signals of service aisle and protection channel is carried out respectively to opto-electronic conversion and form the signal of telecommunication, digital signal corresponding to service aisle and the protection channel signal of telecommunication separately convert to;
Service aisle and protection channel digital signal are separately carried out to frequency spectrum calculating, draw in each road wavelength signals of service aisle and protection channel correspondence separately the range value as frequency He this frequency of label;
According to the range value of each frequency, each self-corresponding each road wavelength signals performance number of evaluation work passage and protection channel.
6. a device for optical network protection turning, is characterized in that, comprising:
Label load-on module, carries out low frequency modulations for Dui Ge road wavelength signals, and Wei Ge road wavelength signals loads label;
Merge and divide module equally, for merging described each road wavelength signals, and divide equally to service aisle and protection channel;
Detection module, for detection of service aisle and protection channel wavelength signals total power value separately;
Demodulation module, carries out demodulation for the wavelength signals to by service aisle and protection channel, obtains label corresponding to each road wavelength signals, according to described label, obtains service aisle and the corresponding Ge of protection channel road wavelength signals performance number;
Optical network protection turning module, for according to described service aisle and each self-corresponding each road wavelength signals performance number of protection channel wavelength signals total power value, service aisle and protection channel separately, determines whether to carry out optical network protection turning operation.
7. the device of optical network protection turning according to claim 6, is characterized in that,
Whether described optical network protection turning module is normal specifically for judging described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number separately; Judge that whether described service aisle and the protection channel corresponding Ge of wavelength signals total power value, service aisle and protection channel road wavelength signals performance number is separately normal; When the wavelength signals total power value of protection channel, the corresponding Ge of protection channel road wavelength signals performance number normal; In the undesired and/or service aisle of the wavelength signals total power value of service aisle, there is abnormal one or more wavelength signals of wavelength signals performance number, carry out optical network protection turning operation.
8. the device of optical network protection turning according to claim 6; it is characterized in that; described label load-on module; specifically for Dui Ge road wavelength signals, corresponding frequency is set as label; for each frequency produces the corresponding signal of telecommunication, each signal of telecommunication is modulated in corresponding each road wavelength signals.
9. the device of optical network protection turning according to claim 8, is characterized in that, the described modulation system that each signal of telecommunication is modulated in corresponding each road wavelength signals is EVOA mode or ITLA mode.
10. the device of optical network protection turning according to claim 6, it is characterized in that, described demodulation module, concrete also for the wavelength signals of service aisle and protection channel being carried out respectively to the opto-electronic conversion formation signal of telecommunication, digital signal corresponding to service aisle and the protection channel signal of telecommunication separately convert to; Service aisle and protection channel digital signal are separately carried out to frequency spectrum calculating, draw in each road wavelength signals of service aisle and protection channel correspondence separately the range value as frequency He this frequency of label; And according to the range value of each frequency, each self-corresponding each road wavelength signals performance number of evaluation work passage and protection channel.
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|---|---|
| CN104065412B (en) | 2017-05-31 |
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