CN203466818U - Protection system for solving long distance transmission equipment failure or outage - Google Patents
Protection system for solving long distance transmission equipment failure or outage Download PDFInfo
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- CN203466818U CN203466818U CN201320584761.7U CN201320584761U CN203466818U CN 203466818 U CN203466818 U CN 203466818U CN 201320584761 U CN201320584761 U CN 201320584761U CN 203466818 U CN203466818 U CN 203466818U
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Abstract
The utility model discloses a protection system for solving long distance transmission equipment failure or outage. The protection system comprises a transmission device, a control module, an optical switch switching module, a power supply module, a main optical path, an auxiliary optical path, a light splitting and photoelectric conversion module, a K2 byte analysis module, a judgment module, a regenerative repeater module, and an alarm output module. The main optical path is fixed and split by the light splitting and photoelectric conversion module through a light splitter, then the photoelectric conversion is carried out, an electric signal is sent to the judgment module, the K2 byte analysis module and the alarm output module. Compared with the existing transmission station protection, according to the protection system, a disadvantage that only a single main and auxiliary route selection function can be completed and optical power compensation can not be carried out in the existing protection technology is made up, at the same time, through judging a K2 byte code sample according to the scheme, a failure protection face is enlarged, and a transmission site receiving part, an equipment pigtail fiber, a photoelectric detector, RST and MST logic function blocks, failure and software operation failure are protected.
Description
Technical field
The utility model relates to the protection of a kind of transmission base station and communications industry technical field, relates in particular to a kind of protection system that solves long Distance Transmission equipment failure or power-off.
Background technology
Solve a protection system for long Distance Transmission equipment failure or power-off, solved in prior art that the optical transmission device of certain node of optical transmission chain breaks down or power down after, the problem that causes light transport communication to interrupt; In the patent No., be disclosed as the light protective device that utility model in the Chinese patent document of " CN201114070 " discloses a kind of anti-single station failure.These two kinds of utility models are all to utilize Passive Optical Components to carry out Route Selection to transmitting optical signal, and making after transfer station point failure can be by the direct conducting of our station input optical signal to downstream website input optical signal, guarantee that whole looped network light transmission do not interrupt.
There are the following problems for existing protection equipment institute employing technology:
Prior art is just used optical splitter and optical switch to carry out the selection of light path, while making this station failure, station, upstream and downstream stations light path are communicated with, this process signal is through a plurality of devices, Insertion Loss is larger, and do not carry out luminous power compensation, cause optical signal power to decline, can not meet the luminous power sensitivity requirement of downstream website;
Protection problem when prior art can only solve transmission website power down or equipment transmitting portion failure condition, if but transmission website receiving unit (as equipment tail optical fiber, photodetector and RST, MST logic function block) or systems soft ware operation are broken down, can not protect this insufficiency face;
Under prior art, protection equipment is only supported single voltage source, can not meet the multifarious requirement of online supply voltage;
Prior art only has single detection method, and protection device fault information can not be back to network management center.
Utility model content
The purpose of this utility model is just to provide a kind of employing optical switch to publish receipts to light signal, improves the technology that the two send out+optical switch choosings of original optical splitter are received, and has reduced the Insertion Loss of light signal; After employing bypass, the method for light-electro-optical signal relaying, amplifies transmission to light signal, increases transmission range, meets the luminous power requirement of downstream website.The method meets the various wavelength such as 1310nm, 1550nm; The mode that adopts external power source+internal cell two-way parallel operation is photoelectricity light repeat circuit uninterrupted power supply; By above method, reduce signal Insertion Loss, carry out signal regeneration power amplification, met in the long Distance Transmission equipment failure of solution of transmission network actual service conditions or the protection system of power-off.
To achieve these goals, the technical solution adopted in the utility model is: a kind of protection system that solves long Distance Transmission equipment failure or power-off, comprise transmission equipment, control module, optical switch handover module, power module, main optical path and secondary light path, also comprise light splitting and photoelectric conversion module, K2 byte analysis module, judging module, regenerative repeating mould, alarm output module, described light splitting and luminous point modular converter by optical splitter using main optical path fixedly light splitting 10% as detecting light, then carry out light-to-current inversion, and the signal of telecommunication is delivered to judging module, K2 byte analysis module and alarm output module, described K2 byte is delivered to judging module by pumping signal, the decision signal of described judging module enters light switching over module after converting control signal to by control module,
As preferably, power module is provided with possess+24v ,-48v, tri-kinds of external power source interfaces of 220v, and possesses UPS battery module, and described power module is electrically connected to judging module, alarm output module;
As preferably, described regenerative repeating mould carries out the regenerative repeating of light-electrical-optical to light signal, include photodetector, differential amplifier circuit, laser, and between be electrically connected to;
As preferably, described alarm output module receives the testing result of other modules, when system luminous power, supply voltage etc. are abnormal, generate different alarm level signals, deliver to transmission equipment alarm input interface, in transmission network management, produce in time alarm, report to network management center;
As preferably, described judging module and control module are provided with hand switch 1 and hand switch 2.
Compared with prior art, the utility model has the advantage of: made up that existing resist technology can only complete single active and standby routing function and the shortcoming that can not carry out luminous power compensation.This motion simultaneously, by judgement K2 bytecode sample, expands error protection face, can comprise equipment tail optical fiber, photodetector and RST, MST logic function block to transmission website receiving unit, and fault and running software fault are protected.This motion adapts to multiple power sources environment in addition, and possesses detection and the output of multiple alarm signal.
Accompanying drawing explanation
Fig. 1 is system configuration schematic diagram of the present utility model;
Fig. 2 is the system schematic of the utility model light signal processing module;
Fig. 3 is the system schematic of the utility model K2 byte analysis module;
Fig. 4 is the utility model optical switch handover module schematic diagram;
Fig. 5 is the utility model Loop Protection principle schematic;
Fig. 6 is the utility model branch protection principle schematic.
In figure: 201,202,203,204: fixed proportion 10% optical splitter; 205,206,207,208: opto-electronic conversion and amplifying circuit; 306: clock signal is extracted and the circuit of living again; 307,308: descrambling circuit; 309,310:K2 byte-extraction decision circuit; 101,102,103, the optical switch of 104:1 * 2.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1: referring to Fig. 1, a kind of protection system that solves long Distance Transmission equipment failure or power-off, comprise transmission equipment, control module, optical switch handover module, power module, alarm output module, main optical path and secondary light path, also comprise light splitting and photoelectric conversion module, K2 byte analysis module, judging module, regenerative repeating mould, described light splitting and luminous point modular converter carry out the light signal of lightguide cable link input equipment and the light signal processing that transmission equipment sends, by optical splitter using main optical path fixedly light splitting 10% as detecting light, then carry out light-to-current inversion, the signal of telecommunication is delivered to judging module, with alarm output module, this module symbiosis becomes 4 tunnel pumping signal s1, s2, s5, s6 delivers to judging module, and deliver to alarm output module simultaneously, the system schematic of light signal processing module, as Fig. 2,
Described extraction judgement K2 byte is to processing to the signal of telecommunication of light signal processing module, extract line clock, transmission SDH frame structure byte is carried out to descrambling, extract judgement K2 byte, symbiosis becomes 2 tunnel pumping signal s3, s4, and deliver to judging module, the system schematic of K2 byte analysis module, as Fig. 3;
Signal s1, s2, s3, s4, s5, s6 that described judging module is sent here light signal processing module and byte analysis module process, according to the importance of website and looped network, can the different judgement combinational circuit of artificial selection, such as being that one-sided fault is switched or bilateral simultaneous faults just switches.This selection is selected to control by hand switch 1;
Described control module, according to the court verdict signal of judging module, generates control signal, controls optical switch action in optical switch handover module.This block configuration hand switch 2 simultaneously, by its artificial enabled systems operating state, such as auto state, manual mode etc.;
Optical switch handover module receives the signal of telecommunication of control module, according to its level, just carries out switch motion, and acknowledge(ment) signal is selected to receipts, transmitted signal is published, make it possible to carry out 1 * 2 key light circuit and the circuit of secondary light path and select, optical switch handover module schematic diagram, as Fig. 4;
Under normal circumstances, along main optical path circuit, direction 1: the light signal sending from lightguide cable link enters IN1 mouth, outputs to primary route TX1 mouth through optical switch, then enters RX2 after SDH transmission equipment is processed, then outputs to lightguide cable link by OUT2;
Direction 2: the light signal sending from lightguide cable link enters IN2 mouth, outputs to primary route TX2 mouth through optical switch, then enters RX1 after SDH transmission equipment is processed, then outputs to lightguide cable link by OUT1;
Under optical switch switch status, along secondary light path circuit, direction 1: the light signal sending from lightguide cable link enters IN1 mouth, outputs to alternate routing T1 mouth through optical switch, then enter R2 after light-electrical-optical relaying, then output to lightguide cable link by OUT2;
Direction 2: the light signal sending from lightguide cable link enters IN2 mouth, outputs to primary route T2 mouth through optical switch, then enter R1 after light-electrical-optical relaying, then output to lightguide cable link by OUT1;
Power module is inputted external power source by interface, carries out after power supply processing as system provides various operating voltage.Possess+24v ,-48v, tri-kinds of external power source interfaces of 220v, and possess UPS battery module, guarantee external power source lost efficacy after system still can work for a long time.This module is monitored supply voltage simultaneously, when voltage during higher or lower than the threshold value of equipment operating voltage (according to actual conditions setting, be associated with equipment normal working voltage scope and power supply second voltage), formation voltage abnormality alarming pumping signal is to alarm output module;
This modular circuit of regenerative repeating module is carried out the regenerative repeating of light-electrical-optical to light signal, main purpose is to guarantee that enough Output optical power are to meet the luminous power requirement of downstream website.Include the devices such as photodetector, differential amplifier circuit, laser, and be electrically connected to each other, and be positioned on the circuit of secondary light path.In system, to guarantee that photodetector has wide responsive bandwidth, to meet the requirement of corresponding 1310nm and two kinds of common wavelengths of 1550nm.Laser transmitted power will meet repeater span requirement;
This module of alarm output module receives the testing result of other modules, mainly when system luminous power, supply voltage etc. are abnormal, generate different alarm level signals, deliver to transmission equipment alarm input interface, in transmission network management, produce in time alarm, report network management center, guarantee timely unusual circumstance, process in time.
Operation principle and mode: in the light transfer station point failure protection trunking situation that externally lightguide cable link etc. is intact, just enable defencive function, operation principle and mode are as follows:
A) first light transfer station point failure protection trunking detects and judges IN1/IN2 input optical signal power, if undesired, do not carry out any judgement and switches; If normal proceed to the judgement of transmission equipment state and control;
B) signal of RX1, RX2 light mouth, to the output optical signal of W and east orientation E both direction, is detected in light transfer station point failure protection trunking detected transmission equipment west.If do not receive light signal or signal power lower than threshold value (S2, S5 are abnormal), judging module generates control signal excitation control circuit, and control circuit switches 1*2 optical switch by drawing high the driving voltage of optical switch, enters and switches state, complete defencive function; If receiving optical signals power normal (S2, S5 are abnormal), proceeds to next step;
C) light signal from RX1, RX2 is carried out to Clock Extraction and SDH scrambler descrambling, extract the K2 byte of SDH multiplexing section overhead, " b6-b8 " code sample of judgement K2 byte, if " b6-b8 " is " 000 ", judge that transmission equipment ，Guang working properly transfer station point failure protection trunking does not carry out any action; If " b6-b8 " is not " 000 ", can judge transmission equipment operation irregularity (receiver side and transmitter side be possibility all)) light transfer station point failure protection trunking is by judgement, control, and exciting light switch switches, enter and switch state, complete defencive function;
D) Guang transfer station point failure protection trunking enters and switches after state; still light signal is detected and adjudicated, after judgement transmission equipment is working properly, enter Wait-to-Restore state; if continuing 10 minutes ，Ze Guang transfer station point failure protection trunkings, normal operating conditions automatically recovers.
The technology can ensure after transmission equipment lost efficacy, and on passage ring, other websites still obtain the protection of looped network double route or other website business of side chain are not interrupted.
For encircling upper website: after central passage ring D point transmission equipment lost efficacy; automatically there is switching action in BRU; be switched to electric TU Trunk Unit work, the transmission equipment of automatically D being stood is thrown away, makes west to C station and the automatic conducting of east orientation E station light path; thereby guarantee that looped network does not disconnect; other websites still obtain the protection of looped network double route, after D station transmission equipment recovers normally, automatically restore to previous status, make loop revert to former network construction form; greatly strengthened the ability to ward off risks of loop network, as shown in Figure 6.
For website on chain: after on side chain 1, G1 website transmission equipment lost efficacy, automatically there is switching action in BRU, be switched to electric TU Trunk Unit work, automatically the transmission equipment of G1 being stood is thrown away, make west to F station and the automatic conducting of east orientation G2 station light path, guarantee that the business of other websites G2, G3, G4 on chain is unaffected.After G1 base station equipment is recovered normally, automatically restore to previous status, as shown in Figure 7.
Advantage of the present utility model:
1) light signal of alternate routing is carried out to light-electrical-optical regenerative repeating, guaranteed whole transmission system luminous power index, meet application request;
2) output optical signal of transmission equipment is carried out to MSOH K2 byte b6-b8 code sample in frame structure and extract, in order to judge transmission equipment receiver side failure condition and systems soft ware running status, function is more comprehensive;
3) use optical switch to select receipts to receiving optical signals, to sending light signal, publish, effectively reduce system insertion loss;
4) in current communication network, Local Transmission Network network size is huge; the general looped network protection that adopts in network configuration; looped network one point failure (minute lightguide cable link and transmission equipment lost efficacy) in the situation that; business can be switched away another redundancy route; the business that guarantees carrying is not interrupted, and with this, provides carrier class reliable signal transmission.For the networking of branched structure, not protection;
5) along with transmission network scale is increasing, on looped network, failure-frequency also increases.If transmission looped network two point failures; or on long-chain branch, lost efficacy in a place; business is inevitably interrupted; there is the fault that interrupt extensive base station; this is all unacceptable for network quality, business evaluating, customer satisfaction, so must solve the safety problem of this possibility two point failures (side chain one point failure).This motion is studied for the situation of transfer station point failure, avoids the security implication of this class fault to transmission network.
Above a kind of protection system that solves long Distance Transmission equipment failure or power-off provided by the utility model has been carried out to detailed introduction, applied specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, to change of the present utility model and improvement, will be possible, and can not exceed design and the scope of accessory claim defined, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. a protection system that solves long Distance Transmission equipment failure or power-off, comprise transmission equipment, control module, optical switch handover module, power module, main optical path and secondary light path, it is characterized in that: also comprise light splitting and photoelectric conversion module, K2 byte analysis module, judging module, regenerative repeating mould, alarm output module, described light splitting and luminous point modular converter by optical splitter using main optical path fixedly light splitting 10% as detecting light, then carry out light-to-current inversion, and the signal of telecommunication is delivered to judging module, K2 byte analysis module and alarm output module, described K2 byte is delivered to judging module by pumping signal, the decision signal of described judging module enters light switching over module after converting control signal to by control module.
2. a kind of protection system that solves long Distance Transmission equipment failure or power-off according to claim 1; it is characterized in that: power module is provided with possess+24v ,-48v, tri-kinds of external power source interfaces of 220v; and possess UPS battery module, described power module is electrically connected to judging module, alarm output module.
3. a kind of protection system that solves long Distance Transmission equipment failure or power-off according to claim 1; it is characterized in that: described regenerative repeating mould carries out the regenerative repeating of light-electrical-optical to light signal; include photodetector, differential amplifier circuit, laser, and between be electrically connected to.
4. a kind of protection system that solves long Distance Transmission equipment failure or power-off according to claim 1; it is characterized in that: described alarm output module receives the testing result of other modules; when system luminous power, supply voltage etc. are abnormal; generate different alarm level signals; deliver to transmission equipment alarm input interface; in transmission network management, produce in time alarm, report to network management center.
5. a kind of protection system that solves long Distance Transmission equipment failure or power-off according to claim 1, is characterized in that: described judging module and control module are provided with hand switch 1 and hand switch 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584761.7U CN203466818U (en) | 2013-09-22 | 2013-09-22 | Protection system for solving long distance transmission equipment failure or outage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584761.7U CN203466818U (en) | 2013-09-22 | 2013-09-22 | Protection system for solving long distance transmission equipment failure or outage |
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| CN203466818U true CN203466818U (en) | 2014-03-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422175A (en) * | 2020-10-27 | 2021-02-26 | 苏州浪潮智能科技有限公司 | Cascade device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422175A (en) * | 2020-10-27 | 2021-02-26 | 苏州浪潮智能科技有限公司 | Cascade device |
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Granted publication date: 20140305 |