A ship lock chamber water level fluctuation analysis control method based on deep learning

By using deep learning to predict water level and flow velocity, and combining shallow water equations and momentum equations, the valve action rate and scheduling step size are dynamically adjusted, solving the problem of predicting water level fluctuations in the lock control system and improving the safety and efficiency of lock operation.

CN122411601APending Publication Date: 2026-07-17TIANJIN RES INST FOR WATER TRANSPORT ENG M O T

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
Filing Date
2026-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing lock control systems are unable to predict and suppress local water level fluctuations in advance. Fixed scheduling steps lead to high computational loads and ineffective mechanical wear. Pure data-driven models lack physical boundary constraints, posing safety risks.

Method used

A deep learning-based approach is adopted to predict water level and flow velocity through a physical information long short-term memory network, calculate the momentum equation residual by combining shallow water equations, dynamically calculate the upper and lower limits of valve action rate, and use a policy neural network to generate control commands within the dynamic safety boundary and dynamically adjust the scheduling step size.

Benefits of technology

When a turbulent flow trend is predicted, the system automatically suppresses large fluctuations in water level, improves the safety and water surface stability of the lock filling and emptying process, reduces the computational load and mechanical wear of the controller, and enhances the engineering reliability of the control system.

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Abstract

本发明涉及船闸自动控制技术领域,公开了一种基于深度学习的船闸闸室水位波动分析控制方法,包括提取时间步数据结合历史数据生成马尔可夫状态序列;利用物理信息长短期记忆网络推理输出预测水位与推算流速,代入浅水方程求解动量方程残差;根据残差累积绝对值计算阀门动作速率上下限,确立动态安全边界;利用策略神经网络生成原始速率指令,将原始速率指令截断至动态安全边界内生成绝对开度指令,并写入可编程逻辑控制器;根据观测数据计算综合状态梯度变量,更新下一时间步的调度步长。本发明结合水动力学物理规律在源头抑制水位异常波动并通过自适应调整调度步长减少底层控制运算负荷与机械磨损,提高船闸灌泄水过程的安全性和控制效率。
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