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Flow velocity distribution measurement system, flow velocity distribution measurement method, flow velocity distribution measurement program, flow rate measurement system, flow rate measurement method, and flow rate measurement program

机译：流速分布测量系统，流速分布测量方法，流速分布测量程序，流速测量系统，流速测量方法和流速测量程序

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摘要

PPROBLEM TO BE SOLVED: To provide a flow velocity distribution/flow rate measurement technique, which can automatically observe the surface flow velocity distribution or the flow rate of a river, in real time. PSOLUTION: In measuring the flow rate of the river, the system photographs an image of the surface flow of the river by video cameras 1A and 1B installed on a river bank, detects the water level of the river by a level gauge 2 installed in the river, takes an image signal of the surface flow of the river and the level data into an analyzer 3 installed on the ground, and geometrically corrects the oblique image of the surface flow of the river into a vertical plan image, using a preset location condition parameter and the level data, in the analyzer 3. The system executes PIV (particle image velocimetry) analysis of the vertical plan image after geometrical corrections, to obtain the surface flow velocity distribution for each segment on a virtual transverse line 6 of the river, and obtains the total flow rate, using a preset correction coefficient for mean velocity, the sectional shape of the river, the level data, and the surface velocity distribution of each segment on the virtual transverse line of the river. PCOPYRIGHT: (C)2004,JPO

机译：

要解决的问题：提供一种流速分布/流速测量技术，该技术可以实时自动观察地表流速分布或河流的流速。

解决方案：在测量河流的流量时，系统通过安装在河岸上的摄像机1A和1B拍摄河流的表面流图像，并通过水位计2检测河流的水位安装在河流中的水，将河流的地表水的图像信号和水位数据输入到安装在地面上的分析仪3中，然后使用以下方法将河流的地表水的斜角图像校正为垂直平面图像：预设位置条件参数和水平数据，在分析器3中。系统在进行几何校正后对垂直平面图像执行PIV（粒子图像测速）分析，以获取在虚拟水平线6上每个段的表面流速分布。河流，并使用预设的平均速度校正系数，河流的断面形状，水位数据以及虚拟区域上每个分段的表面速度分布来获得总流量河的横线。

版权：（C）2004，日本特许厅展开▼

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公开/公告号JP4025161B2

专利类型
公开/公告日2007-12-19

原文格式PDF
申请/专利权人アジア航測株式会社;
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申请/专利号JP20020279605
发明设计人小林範之;金目達弥;藤田一郎;
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申请日2002-09-25
分类号G01P5/20;G01F1;
国家 JP
入库时间 2022-08-21 20:17:24

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