摘要
水位测量技术在船闸运行中发挥着重要作用,光纤光栅传感器作为一种新型无源传感器,在船闸水位测量领域的应用具有较大的潜力。为建立一套精准可靠的船闸水位测量系统方案,针对光纤光栅水位测量系统中光纤光栅传感器易于串联的特性,结合船闸运行时的水位变化特性,设计了一种船闸光纤光栅水位测量系统的级联布置方案,该方案在测量船闸闸室内外水位差时能够在传感器本身精度固定的情况下进一步提高实际测量精度。基于此布置方案,设计了针对水位计零点漂移和斜率漂移的校准算法,校准算法在船闸进行充泄水时运行,逐级对水位计进行校准。针对级联布置方案中的有效水位计数据,设计了基于卡尔曼滤波原理的数据融合算法,并通过仿真对算法的有效性进行验证。
Water level measurement technology plays an important role in the operation of ship locks,and fiber optic grating sensors,as a new type of passive sensor,have great potential in the field of ship lock water level measurement.In order to establish a precise and reliable ship lock water level measurement system,a cascade arrangement scheme for the fiber optic grating water level measurement system in the ship lock was designed,which is easy to be connected in series,combined with the water level change characteristics during the operation of the ship lock.This scheme can further improve the actual measurement accuracy when measuring the water level difference inside and outside the ship lock,while the accuracy of the sensor itself is fixed.Based on this layout plan,a calibration algorithm was designed for zero drift and slope drift of the water level gauge.The calibration algorithm runs during the filling and discharging of the ship lock,and the water level gauge is calibrated step by step.In addition,a data fusion algorithm based on the Kalman filter principle was designed for the effective water level gauge data in the cascade layout scheme,and the effectiveness of the algorithm was verified through simulation.
作者
王忠民
WANG Zhongmin(Three Gorges Navigation Authority,Yichang 443000,Hubei,China)
出处
《水利水电技术(中英文)》
北大核心
2025年第S1期498-503,共6页
Water Resources and Hydropower Engineering
关键词
船闸
光纤光栅水位测量系统
级联布置方案
水位计校准
水位计数据融合
ship lock
fiber bragg grating water level measurement system
cascaded arrangement scheme
water level gauge calibration
water level gauge data fusion
