| Cite this article: | 时启军,马素英.基于投影寻踪技术的渠道计量设备比选与应用[J].灌溉排水学报,,():-. |
| shiqijun,masuying.基于投影寻踪技术的渠道计量设备比选与应用[J].灌溉排水学报,,():-. |
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| DOI： |
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| Comparison and Application of Channel Metering Equipment Based on Projection Pursuit Technology |
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shiqijun1, masuying2
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1.Hebei Branch of the South-to-North Water Transfer Middle Route Engineering Construction Administration Bureau;2.Hebei Institute of Water Conservancy Science
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| Abstract: |
| Channel water quantity has an important impact on the conservation, utilization, dispatch and management of water resources. Accurate measurement of water quantity is the basis for water resource management departments to allocate water, which provides a scientific basis for channel layout and is conducive to the protection and conservation of water resources. Therefore, it is of great significance to select appropriate water measuring equipment and facilities to provide guarantee for accurate water measurement. Based on the seven commonly used water measuring equipment such as hydraulic construction and flow meter, the article selects seven evaluation indicators such as flow measurement range, adaptability, reliability, submergence, measurement accuracy, engineering cost, service life, and degree of automation, according to the judgment scale , Through data normalization, constructing an optimized projection index function, establishing a projection pursuit evaluation model, solving the problem of 7-dimensional dimensionality reduction, comprehensively calculating the scores of various water measuring equipment, and selecting the best metering equipment under specific conditions , That is, water measuring instrument. The conclusion is consistent with the actual situation of the irrigation area, and proves that the selection of water measuring equipment using the projection pursuit evaluation model is objective and scientific. |
| Key words: water measuring equipment; comparison and selection; projection pursuit |
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