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基于改进YOLOv5和DBSCAN聚类的变电站压板识别方法 被引量:3
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作者 舒宁 汤清华 赵必美 《电力大数据》 2023年第12期19-27,共9页
本文提出了一种基于改进YOLOv5和DBSCN聚类方法的变电站压板智能识别方法,旨在实现压板开关状态的智能监控和高效管理。针对压板开关目标较小、分布密集的特点,对原生YOLOv5网络进行改进,增加检测头以提升小目标检测能力,并采用EIOU损... 本文提出了一种基于改进YOLOv5和DBSCN聚类方法的变电站压板智能识别方法,旨在实现压板开关状态的智能监控和高效管理。针对压板开关目标较小、分布密集的特点,对原生YOLOv5网络进行改进,增加检测头以提升小目标检测能力,并采用EIOU损失函数优化目标框定位精度。结合DBSCAN聚类方法,对检测出的目标框中心点进行聚类,并根据相对位置排列每个压板的目标框。通过比对“四表一指南”中的开合状态,实现所有压板开关的智能比对,该方法可提高监控准确性和管理效率,降低人工干预成本,为电力系统的安全稳定运行提供有力支持。 展开更多
关键词 变电压板 目标检测 模型聚类 YOLOv5
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Temperature and Concentration Fields in a Generator Integrated to Single Stage Heat Transformer Using Water/Carrol Mixture
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作者 E.Gómez-Arias J.Ibarra-Bahena +3 位作者 L.Velazquez-Avelar R.J.Romero A.Rodriguez-Martinez M.Montiel-González 《Journal of Thermal Science》 SCIE EI CAS CSCD 2014年第6期564-571,共8页
The generator is the starter device of single stage heat transformer(SSHT) and its characteristics have main effects on the overall efficiency of this kind of absorption machines.This article reports a study of the ge... The generator is the starter device of single stage heat transformer(SSHT) and its characteristics have main effects on the overall efficiency of this kind of absorption machines.This article reports a study of the generation of steam and changes in the concentration of the working solution(Water/Carrol mixture) into a plate heat exchanger as a function of its horizontal and vertical position by gravity effect.It is considered the analysis of six experimental tests;two were evaluated in a plate heat exchanger in a horizontal position and four in a vertical position(90 degree inclination).The generation of steam and increased concentration of the working solution are more sensitive to the vertical position of exchanger than in horizontal position.The results of numerical-experimental analysis indicates that a heat exchanger in horizontal position,the steam generation and the change in the concentration of the working solution occurring in the middle of the plate(or at greater distance depending to the thermodynamic conditions) and instantly in vertical position(at the input of the plate). 展开更多
关键词 Single stage heat transformer Plate heat exchanger Numerical modeling Temperature and concentration field Water/Carrol mixture
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