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
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[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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