CN104301031A - Multi-path light matrix switching protection equipment - Google Patents
Multi-path light matrix switching protection equipment Download PDFInfo
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- CN104301031A CN104301031A CN201410599317.1A CN201410599317A CN104301031A CN 104301031 A CN104301031 A CN 104301031A CN 201410599317 A CN201410599317 A CN 201410599317A CN 104301031 A CN104301031 A CN 104301031A
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Abstract
The invention discloses multi-path light matrix switching protection equipment. An N:N-1 light path matrix switching module is adopted in the light path part, adopts a 99:1 optical divider for dividing light and sampling and adopts a highly-integrated N*N optical switch and N highly-integrated 2*1 optical switches are adopted for achieving light path switching at the same time; due to the fact that there is no need to additionally arrange spare light-emitting equipment and spare light paths in the module, N transmission light paths can be directly obtained, N paths of light input and N paths of light output can be achieved, and the equipment cost, system loss and the failure rate are greatly lowered.
Description
Technical field
The present invention relates to the online proterctive equipment of a kind of optical fiber communication, be specifically related to a kind of multi-path light Inverse problem proterctive equipment.
Background technology
Along with the rise of global information industry, being widely used of optical-fibre communications, one of mainstay becoming modern communications.Fiber plant complicated, to maximize and demand without blocking communication constantly rises; High capacity communication cable network accesses huge numbers of families, will face claim once communication is obstructed and loses the risk of client.Along with the development of modern optical fiber communication and MEMS (micro electro mechanical system), without hindrance open close communication system and product technology ripe, light protection system is arisen at the historic moment.Optical line protection system and light path protection system make use of Fibre Optical Communication Technology and optical switching technique, carry out intelligent protection or switching to optical fiber telecommunications line, bypass, looped network, thus the equipment realized without blocking communication or system.The operation principle switched be when detect active link Transmission or performance degradation to a certain extent after, main signal is gone to space signal system to transmit by systematic evaluation equipment automatically, thus makes that receiving terminal still can receive normal signal and fault has appearred in imperceptible network.
In fiber optic transmission system, due to existing multi-path light Inverse problem proterctive equipment, after light path part wherein and light path Inverse problem module generally become 1 × N optical switch with multiple 1 × 2 optical switch stack, again with the assembled scheme that the carrying out backup of N number of 1 × 2 optical switch is selected, as shown in Figure 1, thus need separately to establish a signal source for subsequent use and a light path for subsequent use, namely multi-path light Inverse problem proterctive equipment sends out equipment separate unit backup protection for multi-path light, sending out equipment if any 4 light then needs increase by addition to do for subsequent use, like this when the wherein any equipment during 4 light are sent out is out of order and stand-by equipment is normal, can be switched on stand-by equipment within the time of Millisecond by All-optical switching instrument, allow system worked well, and alarm.If when two or more equipment break down, according to priority carry out switch protecting simultaneously.Although existing multi-path light Inverse problem proterctive equipment, the light for subsequent use of additional sends out equipment and light path for subsequent use both can increase cost increase, can increase again the loss of system, can increase system failure rate again.
Summary of the invention
Technical problem to be solved by this invention is that existing multi-path light Inverse problem proterctive equipment needs additionally to increase light for subsequent use in use and sends out equipment and light path for subsequent use; and the deficiency that the cost caused, system loss and failure rate increase, a kind of multi-path light Inverse problem proterctive equipment is provided.
For solving the problem, the present invention is achieved by the following technical solutions:
A kind of multi-path light Inverse problem proterctive equipment, forms primarily of microprocessor control module and the power monitoring module be connected with microprocessor control module and light path Inverse problem module.Described light path Inverse problem module comprises N number of optical branching device, N number of photo-detector, 1 N × N optical switch and N number of 2 × 1 optical switches; Wherein input Ge Yu mono-road, the conjunction road optical input of each optical branching device is connected, and the main output of shunt of each optical branching device is connected with an input of N × N optical switch; The auxiliary output of shunt of each optical branching device is respectively connected with the input of power monitoring module through a photo-detector; N number of output Ge Jie mono-road light output mouth of N × N optical switch.The data output end of power monitoring module is connected with the data input pin of microprocessor control module, and the control output end of microprocessor control module connects the control end of N × N optical switch and the control end of N number of 2 × 1 optical switches.Above-mentioned N is the number of optical input.
In such scheme, described N number of optical branching device is 99:1 optical branching device.
In such scheme, described photo-detector is PIN photodiode.
In such scheme, 1 N × N optical switch is together with N number of 2 × 1 optical switch integration packagings.
In such scheme, the span of N is between 8 ~ 16.
In such scheme, microprocessor control module is also connected to communication interface modules further.
In such scheme, described communication interface modules is the communication interface modules supporting TCP/IP, UDP, SNMP, HTTP, ICMP, TELNET and/or FTP procotol.
In such scheme, microprocessor control module is also connected to data disaply moudle further.
Compared with existing, light path part of the present invention adopts N:N-1 light path Inverse problem module, this module adopts 99:1 optical branching device to divide Optical Sampling, adopt 1 highly integrated N × N optical switch and N number of 2 × 1 optical switches to realize light path to switch simultaneously, because this module sends out equipment and light path for subsequent use without the need to additionally increasing light for subsequent use, and directly can obtain N road transmission light path, the light input of N road and N road light output can be realized, thus make the cost of equipment, system loss and failure rate also greatly reduce.
Accompanying drawing explanation
Fig. 1 is the light path part principle schematic of existing multi-path light Inverse problem proterctive equipment.
Fig. 2 is the overall structure schematic diagram of multi-path light Inverse problem proterctive equipment of the present invention.
Fig. 3 is the principle schematic of light path Inverse problem module in Fig. 1.
Embodiment
A kind of multi-path light Inverse problem proterctive equipment, as shown in Figure 2, forms primarily of power supply and the microprocessor control module be connected with supply module, communication interface modules, data disaply moudle, power monitoring module and light path Inverse problem module.Communication interface modules and data disaply moudle are connected in microprocessor control module.Power monitoring module connects the input of microprocessor control module, and the output of microprocessor control module connects light path Inverse problem module.
Power supply is that each module is powered, and in the present invention, described power supply implements many power supply backups, comprises anti-moment surge circuit, for the protection of power supply and other control circuit modules.
Communication interface modules is responsible for providing communication interface (network interface) to communicate with the external world.In the present invention, the telemanagement of communication interface modules network enabled, uses the multiple network agreements such as TCP/IP, UDP, SNMP, HTTP, ICMP, TELNET, FTP, and RS232 serial communication.
Data disaply moudle, by the main information of LCD display display device, makes the use operation of equipment more directly perceived, convenient.
Light path Inverse problem module in charge switches light path, realizes transmission transparent.Above-mentioned light path Inverse problem module, as shown in Figure 3, comprises N number of optical branching device, N number of photo-detector, 1 N × N optical switch and N number of 2 × 1 optical switches.Wherein input Ge Yu mono-road, the conjunction road optical input of each optical branching device is connected, and the main output of shunt of each optical branching device is connected with an input of N × N optical switch; The auxiliary output of shunt of each optical branching device is respectively connected with the input of power monitoring module through a photo-detector; N number of output Ge Jie mono-road light output mouth of N × N optical switch.The data output end of power monitoring module is connected with the data input pin of microprocessor control module, and the control output end of microprocessor control module connects the control end of N × N optical switch and the control end of N number of 2 × 1 optical switches.Above-mentioned N is the number of optical input, and its span is between 4 ~ 16.In a preferred embodiment of the invention, the value of N is 8.In the present invention, N number of optical branching device is 99:1 optical branching device, and adopt 99:1 optical branching device to divide Optical Sampling, wherein the light signal of 99% outputs on N × N optical switch, and the light signal of 1% outputs on photo-detector, to reduce optical path loss.Described photo-detector all have employed the PIN photodiode of low noise as detector, and PIN photodiode can convert corresponding light signal power to linear current signal.1 N × N optical switch, together with N number of 2 × 1 optical switch integration packagings, to realize small-sized encapsulated, and effectively reduces mentioning of opticator, and reduces system loss.Optical switch part adopts mechanical locking technology, provides the power down of light path switching device to keep function, and when guaranteeing equipment unexpected power down, light path can maintain normal operating conditions.
Power monitoring module is responsible for sampling to the luminous power of equipment optical input.In the present invention, power collecting part adopts high dynamic range logarithmic amplifier to carry out high-speed light power collecting, and has the function of opening or closing any channel optical power and gathering, and optical power threshold can arrange function.Logarithmic amplifier by dynamic range compression even wider for 160dB to a manageable linear voltage range, compared with traditional linear amplifier, can both avoid the process that complicated range swithching circuit also simplify signal transacting.Power monitoring module can be arranged to have and open or close any channel optical power acquisition function, install beforehand optical power alarming threshold function, can realize the luminous power real time and on line monitoring function of multi-wavelength.
Microprocessor control module is responsible for the coordinated management work of each functional module above, realizes the function of automatic proterctive equipment.Microprocessor control module to use based on the MCU chip of ARM architectural framework as network management services process, data acquisition, switches kernel processor chip in real time.Equipment transfers light to micro-telecommunications breath by photo-detector, then is gathered by ADC, realizes, to each primary link power online real time collecting, being monitored and reach link protection effect to the calculating of data by process chip.MCU chip installs LINUX system simultaneously, and the perfect and powerful network service management function utilizing LINUX to have comprehensively promotes whole device network management of performance.
Light sends out the splitter of light signal through 99:1 splitting ratio of equipment and optical input output, the light signal getting 1% enters the photosurface of detector, the electric current flowing through PIN photodiode is become corresponding Linear voltage output by the logarithmic amplifier of power monitoring module, microprocessor control module controls 16 high-precision AD analog to digital converters and carries out data transaction, the digital signal collected is through digital filtering technique, the filtering electromagnetic interference of PCB and IC chip itself, can further improve the measurement sensitivity index of system.In actual fiber transmission system, multi-path light Inverse problem proterctive equipment is used for multi-path light and sends out equipment separate unit backup protection, sends out equipment R0 ~ R4 if any 5 light, and the light signal that when system is normal, R0 exports exports via T0, and the light signal that in like manner Rn exports exports via Tn.When wherein any equipment that 5 light are sent out in equipment is out of order, the light path of optical switch can be switched on other equipment by microprocessor control module within the time of Millisecond, allows system worked well, and alarm.As supposed, the equipment that R3 connects breaks down, and power monitoring module detects that the luminous power that R3 sends is abnormal, and now R0 channel signal is normal, and so light signal R0 is connected to and exports T3 by handover module, and R3 signal is cut off, and T0 exports no signal.If when two or more equipment break down, carry out switch protecting by the priority of embedded setting simultaneously.
In the present invention; microprocessor control module adopts the plan of establishment of embedded light path multipriority pattern to light path Inverse problem module; as sequence number mode of priority, self-defined priority mode; and three kinds of priority protection patterns such as self adaptation priority mode, guarantee that important light path obtains Conservation Priority.
Sequence number mode of priority is that to be connected to the priority facility of T1 the highest, and be secondly T2, by that analogy, what priority was minimum is Tn passage.When there being the device fails of more than two passages, the passage that stand-by equipment priority protection priority is high, if until this equipment recover normal time another faulty channel repair not yet, then alternate channel signal will switch to this passage.This mode of priority is relatively more directly perceived and easy to use.
The order arrangement of priority level 1 to the n that N number of equipment specifies according to client by self-defined priority mode, the priority of T1 or Tn is not necessarily corresponding with subscript n in this mode.This priority protected mode uses more convenient to the transmission network connected or framework is good.
Self adaptation priority protected mode initial value is that sequence number is preferential, and when in systems stay running, embedded warning algorithm module can calculate the pre-warning time that each light sends out equipment in advance, carrys out the protection priority of each passage of dynamic conditioning according to the length of this time.The short priority of pre-warning time is carried to the highest, and the long priority of pre-warning time is minimum.This priority protected mode more presses close to the practical operation situation of equipment.
System default priority protection setting is that sequence number is preferential.Other priority mode are adopted to change by arranging.
The embedded pre-alarm algoritic module of proterctive equipment control module, by sending out the power samples analysis of equipment to front end light, pre-light-metering is sent out equipment due to device aging and is caused power to be down to the useful life of alarm threshold, for system maintenance provides early warning mechanism.
At present proterctive equipment protection algorism is all based on the dispatching algorithm under equipment fortuitous event on the market, does not follow the tracks of the ruuning situation of equipment of protection own and the function of early warning.Embedded pre-alarm module in read-write ROM memory for each protection channel opens up the memory space of certain byte, for memory channel number, sampling interval, data volume and each data point.
Because laser life-span is general longer, the sampling interval is unsuitable too short, generally in units of sky.Assuming that the sampling interval is one day, then luminous power acquisition module is in one day, and sampled light sends out several performance numbers of equipment, then using average power as the sampled data on the same day stored in ROM memory.After having N number of passage then to need all to need to sample to N number of passage, mean deviation stores data, and upgrades the data volume parameter of each passage.When data volume constantly becomes large along with the increase of time, store after the sampled data of a week can being compressed into a data point, and simultaneously with the new spacing parameter of sampling and the time shaft coordinate figure of fitting function.
The data of actual samples are discrete data points, must find out inherent law between these discrete points, generate a continuous print curve by the algorithm of matching.Adopt least square method to carry out matching to data in invention, polynomial fit function can return the coefficient of polynomial of degree n, and with the vector representation of descending.
The function of power and time relationship just can be set up, P=P by the coefficient returned
1t
n+ P
2t
n-1+ ... + P
nt+P
n+1, generally speaking, in multinomial, n gets 5.The time that power drops to warning value can be extrapolated by P (t) function after matching, can facilitate like this system carry out in advance prevention or more exchange device make reference, also can judge for the accuracy of next sampled data points, when next sampled data to differ with estimated value too large more than 10% time, module sends alarm signal, reporting system arrangement maintenance or detection.
After the equipment replacement of certain passage, by arranging all sampled datas that can reset this passage, then repeat whole above-mentioned algorithm flow.The implantation of warning algorithm has accomplished that the function in possible trouble can be predicted and take precautions against to system.
Claims (8)
1. multi-path light Inverse problem proterctive equipment, forms primarily of microprocessor control module and the power monitoring module be connected with microprocessor control module and light path Inverse problem module; It is characterized in that: described light path Inverse problem module comprises N number of optical branching device, N number of photo-detector, 1 N × N optical switch and N number of 2 × 1 optical switches; Wherein input Ge Yu mono-road, the conjunction road optical input of each optical branching device is connected, and the main output of shunt of each optical branching device is connected with an input of N × N optical switch; The auxiliary output of shunt of each optical branching device is respectively connected with the input of power monitoring module through a photo-detector; N number of output Ge Jie mono-road light output mouth of N × N optical switch;
The data output end of power monitoring module is connected with the data input pin of microprocessor control module, and the control output end of microprocessor control module connects the control end of N × N optical switch and the control end of N number of 2 × 1 optical switches;
Above-mentioned N is the number of optical input.
2. multi-path light Inverse problem proterctive equipment according to claim 1, is characterized in that: described N number of optical branching device is 99:1 optical branching device.
3. multi-path light Inverse problem proterctive equipment according to claim 1, is characterized in that: described photo-detector is PIN photodiode.
4. multi-path light Inverse problem proterctive equipment according to claim 1, is characterized in that: 1 N × N optical switch is together with N number of 2 × 1 optical switch integration packagings.
5. multi-path light Inverse problem proterctive equipment according to claim 1, is characterized in that: the span of described N is between 8 ~ 16.
6. multi-path light Inverse problem proterctive equipment according to claim 1, is characterized in that: microprocessor control module is also connected to communication interface modules further.
7. multi-path light Inverse problem proterctive equipment according to claim 6, is characterized in that: described communication interface modules is the communication interface modules supporting TCP/IP, UDP, SNMP, HTTP, ICMP, TELNET and/or FTP procotol.
8. multi-path light Inverse problem proterctive equipment according to claim 1, is characterized in that: microprocessor control module is also connected to data disaply moudle further.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410599317.1A CN104301031A (en) | 2014-10-30 | 2014-10-30 | Multi-path light matrix switching protection equipment |
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| CN201410599317.1A CN104301031A (en) | 2014-10-30 | 2014-10-30 | Multi-path light matrix switching protection equipment |
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| CN104301031A true CN104301031A (en) | 2015-01-21 |
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| CN201410599317.1A Pending CN104301031A (en) | 2014-10-30 | 2014-10-30 | Multi-path light matrix switching protection equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506067A (en) * | 2015-09-06 | 2017-03-15 | 天津纤测道客科技发展有限公司 | Intelligent optical fiber distribution device |
| CN108924672A (en) * | 2018-05-31 | 2018-11-30 | 广州市紫晶通信科技有限公司 | A kind of communication light matrix automatic switching device |
| CN111630943A (en) * | 2018-01-16 | 2020-09-04 | 株式会社富士 | Working machine |
-
2014
- 2014-10-30 CN CN201410599317.1A patent/CN104301031A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506067A (en) * | 2015-09-06 | 2017-03-15 | 天津纤测道客科技发展有限公司 | Intelligent optical fiber distribution device |
| CN106506067B (en) * | 2015-09-06 | 2019-08-30 | 天津纤测道客科技发展有限公司 | Intelligent optical fiber distribution device |
| CN111630943A (en) * | 2018-01-16 | 2020-09-04 | 株式会社富士 | Working machine |
| US10992376B2 (en) | 2018-01-16 | 2021-04-27 | Fuji Corporation | Work machine |
| CN108924672A (en) * | 2018-05-31 | 2018-11-30 | 广州市紫晶通信科技有限公司 | A kind of communication light matrix automatic switching device |
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