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Automatic monitoring and fault positioning system of single-fiber three-way multiplexer

A single-fiber three-way, fault location technology, applied in transmission systems, fault recovery arrangements, electromagnetic wave transmission systems, etc., can solve the problems of single-fiber three-way multiplexer fault detection and fault location that have not been reported, so as to facilitate discovery and troubleshooting , high success rate, and the effect of reducing losses

Active Publication Date: 2013-01-16
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, there is no report on fault detection (especially automatic monitoring) and fault location of single-fiber three-way multiplexers in current patents and various literatures

Method used

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  • Automatic monitoring and fault positioning system of single-fiber three-way multiplexer
  • Automatic monitoring and fault positioning system of single-fiber three-way multiplexer
  • Automatic monitoring and fault positioning system of single-fiber three-way multiplexer

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Embodiment Construction

[0029] Below with reference to accompanying drawing, the present invention is further described:

[0030] Referring to the attached picture:

[0031] Such as figure 1 As shown, the single-fiber three-way multiplexer automatic monitoring and fault location system described in the present invention includes a first sampling circuit for sampling the optical signal at the front end of the single-fiber three-way multiplexer to be checked and respectively The second sampling circuit, the third sampling circuit, and the fourth sampling circuit for sampling the 1550nm, 1490nm, and 1310nm wavelength signals at the back end of the single-fiber three-way multiplexer; the first to fourth sampling circuits are connected A central controller, said central controller reads the digital value of each sampling circuit, and completes the judgment and location of the fault.

[0032] The sampling circuit includes a light splitting and photoelectric conversion part and a signal conditioning part,...

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Abstract

The invention relates to an automatic monitoring and fault positioning system of a single-fiber three-way multiplexer, which comprises a first sampling circuit, a second sampling circuit, a third sampling circuit and a fourth sampling circuit, wherein the first sampling circuit is used for sampling an optical signal at the front end of the detected single-fiber three-way multiplexer, and the second sampling circuit, the third sampling circuit and the fourth sampling circuit are respectively used for sampling signals with the wavelengths of 1550nm, 1490nm and 1310nm at the rear end of the detected single-fiber three-way multiplexer; the first to the fourth sampling circuits are connected with a central controller, and the central controller is used for reading the numerical value of each sampling circuit and finishing the judging and positioning working of faults. The fault of the single-fiber three-way multiplexer can be detected in real time.

Description

technical field [0001] The invention belongs to the field of optical fiber access network, and is especially suitable for automatic monitoring and fault location of single-fiber three-way multiplexers in the technical field of fiber-to-the-home (FTTH). Background technique [0002] In recent years, with the rapid development of broadband access network, broadband has become the most prominent feature of the development of access network. High-bandwidth services such as video-on-demand, IPTV (Internet TV) and online games are gradually regarded as new business growth points by telecom operators and radio and television operators. Symmetrical Digital Subscriber Loop (SDL)-based broadband access methods have been difficult to meet users' requirements for high bandwidth, bidirectional transmission capabilities, and security. Faced with this dilemma, telecom operators in various countries have turned their attention to fiber-to-the-home—FTTH (Fiber To The Home) technology. FTTH...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/03H04B10/071H04B10/079
Inventor 乐孜纯付明磊李斌
Owner ZHEJIANG UNIV OF TECH
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