Lock operation dynamic water level monitoring system and monitoring method

Abstract

The ship lock operation dynamic water level monitoring system and monitoring method include a fiber grating sensor group, a distribution box, an optical cable, a fiber grating demodulator, and a central processing system. The fiber grating sensor group is multiple groups, and each measurement point is equipped with a group of fiber grating sensor groups, and any group of fiber grating sensor groups is composed of a plurality of fiber grating sensor units connected in series with different reflection wavelengths on an optical fiber to realize Single point multiple sensors detect water level. Multiple fiber grating sensor groups are connected to the distribution box, the distribution box is connected to the fiber grating demodulator through the optical cable, and the fiber grating demodulator is connected to the central processing system. The system of the present invention realizes the water level monitoring function of the high-head ship lock while working and inspecting, which not only improves the reliability of the water level control of the ship lock operation, but also reduces the cost of the single-point multi-water level gauge measurement method; Water level sensing equipment replacement cycle.

Description

technical field [0001] The invention relates to the technical field of ship lock water level monitoring, in particular to a ship lock operating dynamic water level monitoring system and a monitoring method. Background technique [0002] The ship lock water level measurement and reporting system is related to the safety of the ship lock operation, and the ship lock water level gauge occupies a more important position in the sensor types used in the control system. The difference signal of the ship lock water level gauge participates in the control of key processes such as the flat pressure opening and closing of the ship lock gate, water level safety, valve sound vibration suppression, and reverse water head suppression. , There is also the control of the relative accuracy of single water level comparison with low requirements; both the control of the process display and the control of the state reversal signal converted into a Boolean quantity. At present, the reliability o...

AI Technical Summary

Problems solved by technology

[0005] At present, the water level gauges used in the Three Gorges ship lock are imported products, which are expensive, and the sensor probes are easily affected by the underwater environment, and the working performance decreases rapidly, and the replacement cycle is short

There is still a gap between similar domestic products, and it is possible to obtain them through selective methods, but the cost is high; and there is great uncertainty in the supply of spare parts

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