It is necessary to take into account that in the process of technical exploitation of transport multichannel communications (TMС) laid on the roadside, the components included in this system are subjected to mechanical, thermal and geophysical influences.
In this case, damage to the TMC and the pinned optical cable is possible, the TMC leakage failure leads to the filling of the pipelines with water, mud, siltation in significant areas, which deprives the FOL of all advantages in the form of the possibility of additional laying or replacement of the FOL.
Timely detection and elimination of leakage of TMС avoids adverse consequences and reduces the costs of the technical operation of the FOL.
In practice, however, maintenance of TMC is often not carried out, and the condition of the pipelines is identified when performing work with the optical cables, which significantly reduces the reliability of the FOL operation.
To improve the reliability of the optical cables, laid in the TMC, a method for monitoring the leakage of pipelines is proposed.
The paper considers the concept of fiber-optic communication lines (FOCL) maintenance. Performance criterion of FOCL technical maintenance was proposed. For the first time the algorithm for evaluation of the FOCL maintenance efficiency at telecommunication specialists training was applied.
The basic structural element of fiber-optic communication lines are optical cable. An important objective is to study the
reliability of the optical cable depending on the ambient temperature in winter, the deformation of the optical cable and
the optical fibers in loose-tube. The objective of this article is to examine the problems of reliability optical cable during
construction and operation at low temperatures to provide high-quality functioning of fiber-optic communication lines.
This paper presents the investigate of mechanical loadings applied to the optical cables module structure at low temperatures. Mechanical loads experienced by the optical cable in the process of construction of fiber-optic communication lines, and in the course of their operation, are major factors affecting the reliability and service life optical cable. Over the past few years, optical cable modular design greatly supplanted other modifications, so in this article addresses the evaluation of mechanical loads applied to the modular design cables at low temperatures.
This paper presents the algorithm for predictive control implementation on fiber-optic transmission lines. In order to improve the maintenance of fiber optic communication lines, the algorithm prediction uptime optic communication cables have been worked out. It considers the results of scheduled preventive maintenance and database of various works on the track cable line during maintenance.
The paper considers the implementation of innovative strategy of predictive parameter control of outside plant
communication (OPC) for maintenance of fiber optic communication lines (FOCL). The choice of a predictive control
method is reasonable. Realization of this technology for estimation the maintenance effectiveness of OPC FOCL by
criterion of reliability is shown on the example of calculation.
Proc. SPIE. 8410, Optical Technologies for Telecommunications 2011
KEYWORDS: Mathematical modeling, Data modeling, Fiber optics, Networks, Telecommunications, Optical simulations, Fiber optic communications, Systems modeling, Process modeling, Global system for mobile communications
In this article the methods for maintenance process simulation of fiber optic communication lines are analyzed. The choice of the method of functional network (FN) is proved. As a result of carried out calculations at modeling production the opportunity of use of the given method for estimation of efficiency and optimization of maintenance of fiber optic communication lines is shown.
The article presents the strategy analysis for technical operation of fiber optic transmission lines. Besides, the article
deals with maintenance strategies of telecommunication optical cables; it formulates the problems of maintenance
improvement in fiber optic transmission lines and methods for their solution.
For fiber-optic links (FOL), the sufficient time of repairing (removing & reinstalling) fiber-optic cables (FOC) and the
natural ageing of optical fibers (OF) have been stipulating and propelling the problems of safe communication. The latters
used to and are nowadays resolved by mean of either reserving line, cables, fibers, digital streams or improving quality
of FOC grooming. In the latter case, the implementation of a prognostic control of FOC plays sufficient role in fault
prediction on maintenance stage of FOL. The prognostic control is performed by mean of Remote Test Fiber Systems
(RFTS) on the basis of both direct controlling OF parameters and indirect methods of FOC monitoring, including,
being applied at Volgograd City Telephone Network, RLTP Method (Rate Loss Time Prediction) designed for copper/
steel media. Thus for example a prediction method on the basis of protective sheath monitoring results of FOC.
This method is very effective when applied for buried long-haul FOC and in widespread use in Russia.
One of the problems ofthe method performance is how to maintenance satisfactory sheath condition ofFOC. In general,
the main trouble is how to localize faults on the protective sheath. There are however some classical techniques which
are similar to the applied techniques in fault localization in copper media, but when applied for FOL, the techniques have
specifics. The purpose of the paper is to analyze specifics ofthe classical technique implementation for fault localization
ofprotective sheath of FOC.
The analysis of traditional ways application of measurement on a direct current for search damage location of optical
fiber cables of communication has shown the following. Considered ways of measurements are intended for definition of
a zone of damages, for the subsequent localization of damage by line-search devices. As consequence, from them is not
required high accuracy of estimations. It allows recommending the simplified methods with a margin error up to 10%.
Simple bridge and bilateral methods of measurements on a direct current allow receiving estimations with a required
error. Approbation of recommended methods has yielded positive results.