On-line monitoring method of submarine communication optical fiber
A submarine optical cable and optical fiber technology, which is applied in the field of online monitoring of submarine communication optical fibers, can solve problems such as damage, interruptions, and complex sea conditions, and achieve strong innovation and uniqueness, outstanding achievements, and convenient implementation.
Active Publication Date: 2016-08-24
STATE GRID CORP OF CHINA +2
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Problems solved by technology
Compared with terrestrial optical cables, submarine cables, the operating environment of optical fibers is even harsher. Submarine cables cross the Haitan Strait, with rapid water depth, busy channels, and complicated sea conditions; The impact on the operation of the submarine cable cannot be ignored; in the traditional way, the composite submarine cable, especially the relatively fragile submarine optical cable, is more likely to be damaged by anchor dropping, anchoring, fishing, ship dragging, and shore-based operations. Fiber core interruptions occur from time to time during operation, and the actual status of the precious subsea spare fiber core cannot be known in time only by the inspection cycle once every six months. Interruption will endanger the safety and smoothness of grid communication
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[0029]An online monitoring method for monitoring submarine communication optical fibers, 1. First, obtain the maximum transmission length required by the optical path according to the number of optical fibers contained in the submarine cable between the two landing points of the submarine optical cable and the length of the optical fiber, and ensure that the end of the transmission optical path has In the case of sufficient optical power reserve, select the appropriate optical sending and receiving unit. 2. From the optical sending and receiving unit, according to the technical index of optical loss per 100 kilometers, combined with the receiving sensitivity of the optical sending and receiving unit, calculate the distance between the landing point and the substation. The total length of the optical fiber that can be connected including the terrestrial optical fiber, and then calculate the number of submarine optical fiber cables that can be connected in roundabout series based ...
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The invention discloses an online monitoring method for submarine communication optical fibers. According to the online monitoring method, standby optical fibers of submarine optical cables are connected in series in a circulating mode, an optical transmitting and receiving unit is additionally arranged on a transformer substation of one landing place of the submarine optical cables, the submarine optical fibers connected in series in the circulating mode are connected with the optical transmitting and receiving unit through land optical fibers so as to form an optical virtual monitoring circuit, the optical virtual monitoring circuit is connected with a communication network management system through a network inside an electric system, meanwhile, a virtual submarine optical fiber monitoring remote network element is further configured in the communication network management system of an electric power company communication machine room, a related submarine optical fiber remote monitoring slot position module and a corresponding topological graph interface are configured, and real-time monitoring and management of the running condition of the submarine optical fibers can be achieved.
Description
technical field [0001] The invention relates to a communication optical fiber online monitoring method, in particular to a submarine communication optical fiber online monitoring method. Background technique [0002] While transmitting electric energy, the photoelectric composite submarine cable also serves as a power communication channel to transmit real-time operation information of the power grid such as scheduling automation. Compared with terrestrial optical cables, submarine cables, the operating environment of optical fibers is even harsher. Submarine cables cross the Haitan Strait, with rapid water depth, busy channels, and complicated sea conditions; The impact on the operation of the submarine cable cannot be ignored; in the traditional way, the composite submarine cable, especially the relatively fragile submarine optical cable, is more likely to be damaged by anchoring, anchoring, fishing, ship towing, shore-based operations, etc. Fiber core interruptions occur...
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IPC IPC(8): H04B10/077
Inventor 吴飞龙徐杰杨力帆郑小莉陈稳
Owner STATE GRID CORP OF CHINA