CN211166861U

CN211166861U - Long-distance cableway online monitoring system based on dynamic BOTDA technology

Info

Publication number: CN211166861U
Application number: CN201922123303.3U
Authority: CN
Inventors: 董永康; 夏猛; 关鹏; 杜学新; 姜桃飞; 汤晓惠; 隋景林
Original assignee: Anshan Realphotonics Technology Co ltd
Current assignee: Anshan Realphotonics Technology Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-08-04
Anticipated expiration: 2029-12-02

Abstract

The utility model relates to a long distance cableway on-line monitoring system based on dynamic BOTDA technique, be equipped with cable car bearing cable and OPGW optical cable between a plurality of pylons, the cable car has hung on the cable car bearing cable, and dynamic BOTDA stress monitoring host computer is connected with first optical fiber jumper wire and second optical fiber jumper wire respectively, and first optical fiber jumper wire and second optical fiber jumper wire link to each other with two fibre cores in the OPGW optical cable to the butt fusion in first optical fiber splice box; the tail ends of two optical fibers connected with the dynamic BOTDA stress monitoring host through the OPGW are connected through a second optical fiber splice closure. The utility model discloses a atress condition of two fibre core monitoring OPGW optical cables of OPGW optical cable reflects the atress between the pylon, if slope appears in one of them pylon, then can arouse by the stress value grow of taut section optical cable to realize the safety monitoring of pylon.

Description

Long-distance cableway online monitoring system based on dynamic BOTDA technology

Technical Field

The utility model relates to a distributed optical fiber sensing device technical field, specifically speaking relate to a long distance cableway on-line monitoring system based on developments BOTDA technique.

Background

The aerial cableway is a special transportation form, is not influenced by landforms and environments, and has the advantages of energy conservation, environmental protection, high efficiency, strong environmental applicability and the like. Plays an important role in tourism, transportation and industry. However, the safety of the cableway is at all times threatened, and too many accidents of cableway safety have occurred. The tower is an important component of the aerial cableway, and the safety of the tower is directly related to the running safety of the cableway. If the design safety value of the tower is exceeded under the load condition of the line, or the tower has fault hidden trouble due to aging and damage of natural environment in the long-term operation process, part of components are damaged, or the tower is loosened due to galloping in strong wind, so that the inclination of the tower is easily caused, and the potential safety hazard is brought. The method has important practical significance for safety monitoring of the tower, can realize risk control, find problems in time and avoid disasters, and reports for safety monitoring of the tower are not found at present.

Disclosure of Invention

An object of the utility model is to solve above-mentioned problem, provide a long distance cableway on-line monitoring system based on developments BOTDA technique.

In order to solve the above problem, the utility model discloses a technical scheme as follows:

a long-distance cableway online monitoring system based on a dynamic BOTDA technology is characterized by comprising a dynamic BOTDA stress monitoring host, a first optical fiber jumper, a second optical fiber jumper, a first optical fiber splice closure, an OPGW optical cable, a cable car bearing cable and a second optical fiber splice closure;

a cable car bearing cable and an OPGW optical cable are arranged among the towers, a cable car is hung on the cable car bearing cable, and the OPGW optical cable is fixed on the towers through hardware fittings;

the dynamic BOTDA stress monitoring host is respectively connected with a first optical fiber jumper and a second optical fiber jumper, and the first optical fiber jumper and the second optical fiber jumper are connected with two fiber cores in the OPGW optical cable and are welded in a first optical fiber splice closure;

the OPGW optical cable is connected with the tail ends of two optical fibers connected with the dynamic BOTDA stress monitoring host through a second optical fiber splice closure.

Compared with the prior art, the utility model has the beneficial characteristics that:

when the long-distance cableway monitoring system based on the dynamic BOTDA technology works normally, the OPGW optical cable is not stressed.

The long-distance cableway monitoring system based on the dynamic BOTDA technology can cause optical fibers and cableways on one side to be loose when a tower is inclined, and the other side is tensioned, and the OPGW optical cable acts on tension. Stress values of all points of the OPGW optical cable can be measured by the dynamic BOTDA stress monitoring host, the stress values are compared with a stress safety threshold, and when the stress values exceed the stress safety threshold, the dynamic BOTDA stress monitoring host gives an alarm to prompt operation and maintenance personnel to troubleshoot faults and prevent dangers.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a long-distance cableway online monitoring system based on a dynamic BOTDA technology;

in the figure, a BOTDA stress monitoring host-1, a first optical fiber jumper-2, a second optical fiber jumper-3, a first optical fiber splice closure-4, an OPGW optical cable-5, a cable car-6, a cable car bearing cable-7 and a second optical fiber splice closure-8.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

A long-distance cableway on-line monitoring system based on a dynamic BOTDA technology comprises a dynamic BOTDA stress monitoring host 1, a first optical fiber jumper 2, a second optical fiber jumper 3, a first optical fiber splice closure 4, an OPGW optical cable 5, a cable car 6, a cable car bearing cable 7 and a second optical fiber splice closure 8;

a cable car bearing cable 7 and an OPGW optical cable 5 are arranged among the towers, a cable car 6 is hung on the cable car bearing cable, and the OPGW optical cable is fixed on the towers through hardware fittings;

the dynamic BOTDA stress monitoring host 1 is respectively connected with a first optical fiber jumper 2 and a second optical fiber jumper 3, and the first optical fiber jumper and the second optical fiber jumper are connected with two fiber cores in the OPGW optical cable and are welded in a first optical fiber splice closure 4;

the OPGW optical cable 5 is connected with the tail ends of two optical fibers connected with the dynamic BOTDA stress monitoring host 1 through a second optical fiber splice closure 8.

The dynamic BOTDA stress monitoring host of the embodiment can realize online monitoring of temperature and stress, is connected with two fiber cores of the OPGW optical cable, and is used for monitoring the inclination of a cableway and performing safety pre-warning of the cableway.

The OPGW optical cable (optical fiber composite overhead ground wire) is an overhead ground wire widely applied to an electric power system, has the functions of a ground wire and a communication wire, is arranged at the highest position of a tower, is responsible for the communication function and has the lightning guiding function. In the application, an OPGW optical cable commonly used in an electric power system is used, the stress condition of the OPGW optical cable is monitored through two fiber cores of the OPGW optical cable, the stress between towers is reflected, if one tower inclines, the stress value of the optical cable at the tensioned section is increased, and therefore the safety monitoring of the tower is achieved.

The utility model provides an online monitored control system of long distance cableway based on developments BOTDA technique, the atress condition of monitoring OPGW optical cable is simultaneously according to the rated atress condition between the pylon, differentiates unusual region, carries out the early warning of trouble, prevents dangerous emergence.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A long-distance cableway online monitoring system based on a dynamic BOTDA technology is characterized by comprising a dynamic BOTDA stress monitoring host, a first optical fiber jumper, a second optical fiber jumper, a first optical fiber splice closure, an OPGW optical cable, a cable car bearing cable and a second optical fiber splice closure;