Railway disaster-prevention foreign object invasion double-optical-network detection subsystem and detection method

A foreign object invasion limit and railway disaster prevention technology, which is applied in the direction of railway vehicle shape measuring devices, railway car body parts, railway auxiliary equipment, etc., can solve problems such as line loss, lightning strikes, crosstalk, etc., to ensure safety and ensure safe operation , The effect of facilitating system maintenance

Inactive Publication Date: 2014-09-24
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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Problems solved by technology

[0006] In order to overcome the problems that the existing foreign matter invasion limit monitoring subsystem is easily affected by transmission distance, crosstalk, line loss and lightning strikes, and further ensure the operation safety of high-speed railways, the present invention proposes a railway disaster prevention foreign matter invasion limit dual optical Network detection subsystem and detection method

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  • Railway disaster-prevention foreign object invasion double-optical-network detection subsystem and detection method
  • Railway disaster-prevention foreign object invasion double-optical-network detection subsystem and detection method

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Embodiment Construction

[0016] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] like figure 1 As shown, this dual-optical network detection subsystem for railway disaster prevention and foreign object intrusion restriction includes an optical signal output module, a single-mesh dual-optical network at a monitoring point, and a four-way optical detection module. The single-mesh dual-optical network at the monitoring point is 2 meters long and 1 meter wide. Routing rules are laid out to all grids.

[0018] The optical signal output board A and the optical signal output board B in the optical signal output module respectively send optical signals with different frequencies and stable scrambling codes, and the optical signals return to the four-way optical detection module through the single-network chip and double-optical network at the monitoring point. The four-way optical signal acquisition and detection circuit ...

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Abstract

The invention belongs to foreign object invasion monitoring subsystems, and relates to a railway disaster-prevention foreign object invasion double-optical-network detection subsystem and detection method. The railway disaster-prevention foreign object invasion double-optical-network detection subsystem comprises an optical signal output module, a monitoring point single-mesh double-optical-network and a four-path light detection module. Whether a railway is safe or not is judged by comparing optical signals sent out by an optical signal output plate with optical signals of the monitoring point single-mesh double-optical-network. A disaster-prevention safety monitoring system based on the railway disaster-prevention foreign object invasion double-optical-network detection subsystem is provided. The detection subsystem and detection method solve the problem that an existing foreign object invasion monitoring subsystem is prone to being influenced by transmission distance, crosstalk, circuit loss, lightning and the like to some extent, and further guarantees operation safety of high-speed railways.

Description

technical field [0001] The invention belongs to foreign matter invasion limit monitoring, and relates to a dual-optical network detection subsystem and detection method for railway disaster prevention foreign matter invasion limit. Background technique [0002] China's high-speed railway is in a period of rapid development. Disasters related to railway safety include strong winds, snowfall, floods, earthquakes, fires, and falling rocks. The system for preventing and reporting disasters is called a disaster prevention safety monitoring system. As a part of the high-speed railway safety guarantee, the disaster prevention safety monitoring system plays an important role in the high-speed railway traffic guarantee system. [0003] The disaster prevention and safety monitoring system is an integrated system composed of wind monitoring subsystem, rainfall monitoring subsystem, snow depth monitoring subsystem, earthquake monitoring subsystem and foreign object intrusion monitoring ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61K9/08
Inventor 艾重阳
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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