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Primary and hierarchical combiner for railway communication optical fiber repeater with bidirectional communication function

A two-way communication and communication optical fiber technology, which is applied in optical fiber transmission, optical fiber radio, radio transmission systems, etc., can solve the problems of difficult installation, low integration, and large size, and achieve stable performance, high integration, and simplified communication lines. Effect

Active Publication Date: 2016-03-30
CRSC COMM & INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional duplexers have disadvantages such as low integration, large size, and difficult installation. These shortcomings need to be improved

Method used

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  • Primary and hierarchical combiner for railway communication optical fiber repeater with bidirectional communication function

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Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a main hierarchical combiner for a railway communication optical fiber repeater capable of two-way communication, including a main level combiner 1, a hierarchical combiner 2, a first two-way communication channel 3 and a second two-way communication channel 4, The main stage combiner 1 includes a duplexer 11 and a first main stage two power divider 12 and a second main stage two power divider 13 respectively connected to the duplexer 11, and the hierarchical combiner 2 includes successive filters 21 and graded two-power divider 22, one end of the first two-way communication channel 3 is respectively connected to the first main-level two-power divider 12, the second main-level two-power divider 13 and the graded two-power divider 22, and the other end is connected to the remote Terminal machine 5, one end of the second two-way communication channel 4 is respectively connected to filter 21 and duplexer 11, and the other end is connected to moni...

Embodiment 2

[0031] The difference between this embodiment and Embodiment 1 is that the main graded combiner also includes a state switch for controlling the working states of the main grade combiner 1 and the graded combiner 2, and the state switch is respectively connected to the main grade combiner 1 and Hierarchical combiner 2, the state switch can control the main-level combiner 1 and the hierarchical combiner 2 to work at the same time, and can also control the main-level combiner 1 and the hierarchical combiner 2 to work independently. The working state of the hierarchical combiner 2 can be controlled according to whether the primary combiner 1 fails, that is, when the primary combiner 1 fails, the hierarchical combiner 2 is controlled to work so that the entire combiner can continue to work.

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Abstract

The invention relates to a primary and hierarchical combiner for a railway communication optical fiber repeater with a bidirectional communication function. The primary and hierarchical combiner comprises a primary combiner, a hierarchical combiner, a first bidirectional communication channel and a second bidirectional communication, the primary combiner comprises a duplexer, and a first primary second power divider and a second primary second power divider, which are connected with the duplexer respectively, the hierarchical combiner comprises a filter and a hierarchical second power divider, which are connected with each other, one end of the first bidirectional communication channel is respectively connected with the first primary second power divider, the second primary second power divider and the hierarchical second power divider, the other end of the first bidirectional communication channel is connected with a remote terminal, one end of the second bidirectional communication channel is respectively connected with the filter and the duplexer, and the other end of the second bidirectional communication channel is connected with a monitoring center. Compared with the prior art, the primary and hierarchical combiner provided by the invention has the advantages of simple and small structure, low cost, simple wiring, etc.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a main hierarchical combiner for a railway communication optical fiber repeater capable of two-way communication. Background technique [0002] A repeater is a relay transponder between a base station (BS) and a mobile station (MS). It belongs to the same-frequency amplification device and refers to a radio transmission relay device that enhances the signal during wireless communication transmission. The basic function of the repeater is a radio frequency signal power booster. The repeater can solve the problems of villages, towns, tourist areas, highways, etc. that cannot receive the signal of the base station, and can solve the signal coverage in large and super large buildings, and is used for large high-rise buildings (groups) and residential areas with high requirements. occasion. [0003] Railway C3 line repeater, as the name suggests, is used in railway communicati...

Claims

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Application Information

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IPC IPC(8): H04B7/155H04B10/2575
Inventor 李晓蕊谌静维夏如春
Owner CRSC COMM & INFORMATION
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