CN104301032A - Optical line automatic switchover protection system - Google Patents
Optical line automatic switchover protection system Download PDFInfo
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- CN104301032A CN104301032A CN201410592179.4A CN201410592179A CN104301032A CN 104301032 A CN104301032 A CN 104301032A CN 201410592179 A CN201410592179 A CN 201410592179A CN 104301032 A CN104301032 A CN 104301032A
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Abstract
The invention discloses an optical line automatic switchover protection system. The optical line automatic switchover protection system comprises a station A and a station B, a coupler A and an optical switch A are arranged on the side where the station A is located, and a coupler B and an optical switch B are arranged on the side where the station B is located. An optical signal can reach the station B from the station A by sequentially passing through one output end of the coupler A and the optical switch B, and meanwhile an optical signal reaches the station A from the station B by sequentially passing through one output end of the coupler B and the optical switch A and, so a main line is formed. An optical signal can also reach the station B from the station A by sequentially passing through the other output end of the coupler A and the switched optical switch B and, and meanwhile an optical signal reaches the station A from the station B by sequentially passing through the other output end of the coupler B and the switched optical switch A, so a standby line is formed. After the structure is adopted, the optical line automatic switchover protection system can automatically switch an optical transmission system from working optical fibers to standby optical fibers in real time, synchronous switchover protection of the optical cable lines is achieved, availability of the optical cable lines is greatly improved, reliability of a communication system is enhanced, and service quality is guaranteed.
Description
Technical field
The present invention relates to a kind of monitoring and protecting system in power communication transmission system on optical cable physical link, specifically a kind of optical link automatic switching protection system.
Background technology
Along with electrical network is constantly built, fiber cable network constantly expands, and adds various places capital construction, exploitation dynamics constantly strengthens, and artificial/unartificial interruption of optical cables event has very fast ascendant trend; The interruption of optical cables event of frequent generation directly affects Network survivability, has become the key factor affecting network design and structure; Because electric power system Optical Cable is generally set up with the same bar of power transmission and transformation line (tower), determine Optical Cable trans mission networks netted substantially linearly, the whole network all cannot form the ring network with self-healing function, once generation track blocks, by adjusting fine several transmission system circuit of recovery very difficult manually; Some old fibre optic transmission equipments can not provide double route switch protecting function simultaneously, and economic loss caused thus cannot calculate; Under the intelligentized background of bulk power grid, unimpeded each link being related to electrical production, marketing of modernization high capacity communication cable network.Only have high capacity communication ability to be far from being enough, the true kernel of business is service quality, ensures the unblocked of communication.Therefore, take the necessary measure to ensure Transmission Fibers, optical cable reliability, by passive type, optical cable maintenance is safeguarded that rising to active maintenance just seems extremely important.
Summary of the invention
The technical problem to be solved in the present invention is to provide one automatically can switch to spare fibre by optical communication transmission system from working optical fibre in real time; realize the synchronism switching protection of lightguide cable link; thus greatly improve the availability of lightguide cable link; strengthen the optical link automatic switching protection system of the reliability of communication system, its technical scheme adopted is as follows:
A kind of optical link automatic switching protection system, comprise website A and website B, website A side arrange have two-way output coupler A and can two-way switch optical switch A, website B side arrange have two-way output coupler B and can two-way switch optical switch B, light signal can arrive website B through one of them output of coupler A, optical switch B by slave site A successively, arrives website A and forms primary circuit through one of them output of coupler B, optical switch A with optical signal slave site B successively; Light signal can also arrive website B by the optical switch B of slave site A successively after coupler A another one output, switching, arrives website A form extension wire with the optical switch A of optical signal slave site B successively after the another one output of coupler B, switching.
Described coupler A and coupler B is the coupler of 50:50.
Described website A side is arranged has optical switch A1 and the optical switch A2 that can carry out two-way switching respectively, website B side arranges optical switch B1 and the optical switch B2 that can carry out two-way switching respectively, described light signal can arrive website B through one of them output of optical switch A1, one of them output of optical switch B1 by slave site A successively, arrives website A and forms primary circuit through one of them output of optical switch B2, one of them output of optical switch A2 with optical signal slave site B successively; Described light signal can also arrive website B through optical switch A1 another one output, optical switch B1 another one output by slave site A successively, arrives website A and forms extension wire through optical switch B2 another one output, optical switch A2 another one output with optical signal slave site B successively.
Described coupler A and coupler B is the coupler of 50:50.
After adopting above-mentioned structure, have two circuits between website A and website B, optical transmission system selects certain transmission lines wherein as primary circuit, and an other transmission lines, as extension wire, is used for transmitting time one stage signal or not signal transmission; When certain root optical fiber/cable of primary circuit or primary circuit breaks down and causes communication quality to decline, the receiving terminal of primary circuit monitors the power drop of signal, automatically by signal transmission route from primary circuit switching to extension wire, what the OLP equipment of one end can be synchronous in addition gets on the circuit switching of locality to extension wire; Thus achieve when working line fibre loss increase causes communication quality to decline or working line optical fiber occurs to block; optical communication transmission system automatically can be switched to spare fibre from working optical fibre by system in real time; achieve the synchronism switching protection of lightguide cable link; thus substantially increase the availability of lightguide cable link; enhance the reliability of communication system, ensure that service quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment one in the present invention;
Fig. 2 is the schematic diagram of embodiment two in the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, optical link automatic switching protection system of the present invention is described in further detail.
Embodiment one:
As shown in Figure 1, optical link automatic switching protection system of the present invention be one independent of telecommunication transmission system, be based upon Automatic monitoring and protection system on optical cable physical link completely; It comprises website A and website B, website A side is arranged to be had the coupler A of two-way output and can carry out the optical switch A of two-way switching, website B side is arranged to be had the coupler B of two-way output and can carry out the optical switch B of two-way switching, wherein, coupler A and coupler B is the coupler of 50:50; Light signal can arrive website B through a wherein road of one of them output of coupler A, optical switch B by slave site A successively, arrives website A successively form primary circuit with optical signal slave site B through a wherein road of one of them output of coupler B, optical switch A; As can be seen here, the light signal that website A sends, after the coupler beam splitting of 50:50, is transferred to website B through primary, spare circuit simultaneously, and at receiving terminal, according to the power of the two paths of signals received, reception one road signal selected by the receiver of website B; Light signal can also arrive website B by the optical switch B of slave site A successively after the another one output of coupler A, switching, arrives website A form extension wire with the optical switch A of optical signal slave site B successively after the another one output of coupler B, switching;
Embodiment two:
Optical link automatic switching protection system of the present invention, comprise website A and website B, website A side is arranged has optical switch A1 and the optical switch A2 that can carry out two-way switching respectively, website B side arranges optical switch B1 and the optical switch B2 that can carry out two-way switching respectively, light signal can arrive website B through one of them output of optical switch A1, one of them output of optical switch B1 by slave site A successively, arrives website A successively form primary circuit with optical signal slave site B through one of them output of one of them output of optical switch B2, optical switch A2; Light signal can also arrive website B through the another one output of optical switch A1, the another one output of optical switch B1 by slave site A successively, arrives website A and forms extension wire through the another one output of optical switch B2, the another one output of optical switch A2 with optical signal slave site B successively; Wherein, coupler A and coupler B is the coupler of 50:50.
Claims (4)
1. an optical link automatic switching protection system, comprise website A and website B, it is characterized in that: described website A side arranges the coupler A with two-way output and can the optical switch A that switches of two-way, described website B side is arranged has two-way output coupler B and can the optical switch B that switches of two-way, described light signal can arrive website B through one of them output of coupler A, optical switch B by slave site A successively, arrives website A and forms primary circuit through one of them output of coupler B, optical switch A with optical signal slave site B successively; Described light signal can also arrive website B by the optical switch B of slave site A successively after coupler A another one output, switching, arrives website A form extension wire with the optical switch A of optical signal slave site B successively after the another one output of coupler B, switching.
2. according to optical link automatic switching protection system according to claim 1, it is characterized in that: described coupler A and coupler B is the coupler of 50:50.
3. an optical link automatic switching protection system, comprise website A and website B, it is characterized in that: described website A side is arranged has optical switch A1 and the optical switch A2 that can carry out two-way switching respectively, described website B side arranges optical switch B1 and the optical switch B2 that can carry out two-way switching respectively, described light signal can slave site A successively through one of them output of optical switch A1, one of them output of optical switch B1 arrives website B, with optical signal slave site B successively through one of them output of optical switch B2, one of them output of optical switch A2 arrives website A and forms primary circuit, described light signal can also arrive website B through optical switch A1 another one output, optical switch B1 another one output by slave site A successively, arrives website A and forms extension wire through optical switch B2 another one output, optical switch A2 another one output with optical signal slave site B successively.
4. according to optical link automatic switching protection system according to claim 3, it is characterized in that: described coupler A and coupler B is the coupler of 50:50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592179.4A CN104301032A (en) | 2014-10-29 | 2014-10-29 | Optical line automatic switchover protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592179.4A CN104301032A (en) | 2014-10-29 | 2014-10-29 | Optical line automatic switchover protection system |
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| Publication Number | Publication Date |
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| CN104301032A true CN104301032A (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410592179.4A Pending CN104301032A (en) | 2014-10-29 | 2014-10-29 | Optical line automatic switchover protection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049570A (en) * | 2019-12-20 | 2020-04-21 | 国家电网有限公司 | Automatic switching protection system for optical fiber circuit |
| CN114499653A (en) * | 2022-01-14 | 2022-05-13 | 国核电力规划设计研究院有限公司 | Overhead transmission line communication method and device, electronic equipment and storage medium |
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| CN101826917A (en) * | 2010-04-21 | 2010-09-08 | 瑞斯康达科技发展股份有限公司 | Optical line protection device and system |
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2014
- 2014-10-29 CN CN201410592179.4A patent/CN104301032A/en active Pending
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| CN101826917A (en) * | 2010-04-21 | 2010-09-08 | 瑞斯康达科技发展股份有限公司 | Optical line protection device and system |
| CN102136876A (en) * | 2011-02-11 | 2011-07-27 | 华为技术有限公司 | Light line protection acceleration circuit, light line protection system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049570A (en) * | 2019-12-20 | 2020-04-21 | 国家电网有限公司 | Automatic switching protection system for optical fiber circuit |
| CN114499653A (en) * | 2022-01-14 | 2022-05-13 | 国核电力规划设计研究院有限公司 | Overhead transmission line communication method and device, electronic equipment and storage medium |
| CN114499653B (en) * | 2022-01-14 | 2023-12-12 | 国核电力规划设计研究院有限公司 | Communication method and device for overhead transmission line, electronic equipment and storage medium |
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