水位流量智能定线关键技术研究

Research on key technologies for intelligent water level and flow calibration

水位-流量定线是用于报汛、整编水文测验数据的必不可少的关键环节。针对水文断面复杂水位流量关系的定线问题,在深入分析拟合法、插值法等曲线算法优缺点的基础上,筛选建立了算法库,并创造性地实现了“复合曲线”“智能拟合”算法,开发了人机互助方式的水位流量关系智能定线系统。该系统实现了水位流量关系定线的选点、定线、推流全过程自动化,在国内率先实现了“三关线”(水位-流量-面积-流速)自动绘制、切换和交互定线,以及水位过程线时间轴不等距刻度和自动标注。

It is necessary to draw a line about Water level and flow rate.The determination of water level to flow rate for hydrological survey data to be used for flood reporting and compilation.This article selects and establishes an algorithm library to address the problem of determining the complex water level flow relationship in hydrological sections.Based on an in-depth analysis of the advantages and disadvantages of curve algorithms such as fitting and interpolation methods.This article develops an intelligent water level flow relationship alignment system based on human-machine mutual assistance.The software realizes the automation of the entire process of point selection,line setting,and flow pushing in the process of determining the water level flow relationship.The software has achieved for the first time in China the automatic drawing,switching,and interactive alignment of the“three checkpoints”(water level flow rate area flow rate),realizing the non-uniform time axis scale and automatic annotation of the water level process line.