Multi-service multi-point access single fiber transmission system in railway section
A transmission system and multi-point access technology, applied in the directions of optical fiber transmission, transmission system, electromagnetic wave transmission system, etc., can solve the problem of transplanting mature communication technology solutions without public network, and achieve the effect of reliable transmission
Active Publication Date: 2012-07-04
ELECTRICITY AFFAIR ENG COMPANY OF CHINA RAILWAY NO 8 ENG GRP
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Problems solved by technology
However, the section communication, which is an important part of the railway dedicated communication system, still uses copper core cables for transmission. Due to the special requirements of the operation, there are many technical difficulties in the upgrade and transformation of optical fiber, and there is no corresponding mature communication technology solution for the public network that can be transplanted
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[0017] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0018] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0019] A multi-service multi-point access single optical fiber transmission system in the railway section of this embodiment includes end station equipment located in two stations respectively, the equipment at both ends of the station is connected by a single optical fiber communication line, and the railway between the two stations is connected at intervals A talking post is set up at 1.5 kilometers. There are 20 talking posts in this railwa...
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The invention discloses a multi-service multi-point access single fiber transmission system in a railway section. The system comprises end station equipment respectively positioned in two stations, wherein the two end station equipment are connected through a single fiber communication circuit; call columns are arranged every 1.5 kilometers along the railways between the two stations; each call column is provided with a passive light interface; each section equipment accesses the single fiber communication circuit through the passive light interface on the call column; the interrupted stationequipment and the section equipment consist of a multi-service transmission device, a multi-service receiving device and a control device respectively. The multi-service multi-point access single fiber transmission system in the railway section uses a fiber transmission mode to replace a copper conductor cable transmission mode in the prior railway section communication, provides enough channels for service among railway sections, and ensures high-efficient, safe and reliable transmission of information.
Description
technical field [0001] The invention relates to the technical field of railway section communication, in particular to a railway section multi-service multi-point access single optical fiber transmission system. Background technique [0002] In railway section communication, railway section telephones, section electric adjustment telephones, 117 emergency rescue telephones, bridge and tunnel guard telephones, construction protection telephones, infrared shaft temperature data transmission, axle counting information transmission, etc. play an important role in the command and control of railway section traffic effect. At present, copper core cables are mainly used for the transmission of the above information, which has the disadvantages of narrow bandwidth, small capacity, large loss, poor anti-interference ability, difficult maintenance and high cost. The transmission capacity of copper core cables is weak, and a pair of copper core cables can only transmit one signal at t...
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IPC IPC(8): H04B10/12H04B10/18H04B10/25
Inventor 张志强罗斌张小舟潘炜唐金成
Owner ELECTRICITY AFFAIR ENG COMPANY OF CHINA RAILWAY NO 8 ENG GRP