Multi-channel optical fiber automatic backup device for broadcasting network

A multi-channel optical fiber and automatic backup technology, which is applied in the field of optical communication, can solve problems such as no reminder and no automatic repair, and achieve the effect of easy maintenance, small modification and high stability

Active Publication Date: 2016-05-04
LOOTOM TELCOVIDEO NETWORK WUXI
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] However, this architecture only minimizes the impact of a single device failure, and cannot be reminded when a failure occurs, nor can it be automatically repaired after a failure.

Method used

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  • Multi-channel optical fiber automatic backup device for broadcasting network
  • Multi-channel optical fiber automatic backup device for broadcasting network
  • Multi-channel optical fiber automatic backup device for broadcasting network

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Embodiment Construction

[0024] The specific embodiment and working principle of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] For the convenience of expression, take 3 active optical fibers (3 user groups) and 1 spare optical fiber, that is, "3+1 mode" as an example. In fact, according to the current needs of most cable TV network companies, it is usually the "11+1 model". In the optical fiber broadcasting network with more complex situation and higher requirements in the future, it can be expanded to "N+M mode", where N is the number of main channels, M is the number of backup channels, and both N and M are natural numbers.

[0026] The architecture of a multi-channel optical fiber automatic backup device proposed by the present invention is adopted, such as Figure 4 As shown, the 3 active optical fibers (fiber A, fiber A, fiber C) and 1 backup optical fiber (fiber D) are working normally, and the signals are output to user groups A, ...

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Abstract

The invention provides a multi-channel optical fiber automatic backup device for a broadcasting network. A spare optical fiber is added on a framework of an existing broadcasting network, the spare optical fiber and in-use optical fibers are made to be used as an input optical fiber together to work normally, and signals are output to each user group through the multi-channel optical fiber automatic backup device. The multi-channel optical fiber automatic backup device comprises N optical fiber output ports, N optical switches, N+1 optical fiber input ports, N+1 optical splitters, an optical power monitoring unit, a microcontroller, a network management interface and a multi-channel optical change-over switch. The microcontroller performs fault judgment according to optical power of each optical fiber, wherein the optical power is monitored by the optical power monitoring unit; the N optical switches and the one multi-channel optical change-over switch are controlled, and therefore the spare optical fiber is used for replacing the faulted in-use optical fiber. The multi-channel optical fiber automatic backup device has the advantages of solving the problem of automatic detection of the optical fibers, having an optical fiber fault protection function, and being small in existing optical fiber network transformation and low in cost.

Description

technical field [0001] The invention relates to the field of optical communication, cable TV and broadcast communication, in particular to a multi-channel optical fiber automatic backup device for broadcast network. Background technique [0002] In recent years, with the continuous deepening of the triple play process, my country's cable TV network has achieved rapid development. Optical fiber (optical fiber is the abbreviation of optical fiber, which is a medium for optical signal transmission achieved by the principle of total reflection of light in fibers made of glass or plastic) communication has large communication capacity, high quality transmission signals, and long transmission distances. It has become a main communication method and has been widely used in the cable TV industry. [0003] At present, almost all cable television network companies are gradually carrying out large-scale optical cable (optical cable is a kind of cable core composed of a certain number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/032
Inventor 李刚尹冠民王华孙明亮项谢进
Owner LOOTOM TELCOVIDEO NETWORK WUXI
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