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基于S7-300 PLC和WINCC的连铸机二冷水控制系统分析 被引量:1
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作者 汤中敏 何佳英 《机电信息》 2016年第6期24-25,共2页
连铸二冷水控制对连铸机的生产质量和效率有着重要影响,合理的动态二冷水配水能够有效提高连铸机铸坯的质量,以达到优质高产的目的。现介绍萍钢公司萍乡炼钢厂方坯连铸机在生产过程中二冷水自动配水控制系统,该系统应用西门子S7-300 PL... 连铸二冷水控制对连铸机的生产质量和效率有着重要影响,合理的动态二冷水配水能够有效提高连铸机铸坯的质量,以达到优质高产的目的。现介绍萍钢公司萍乡炼钢厂方坯连铸机在生产过程中二冷水自动配水控制系统,该系统应用西门子S7-300 PLC采集数据和控制输出,应用组态软件WINCC组态二冷水配方数据表,通过PLC与WINCC之间的通讯与数据交换,实现方坯连铸机生产过程中二冷水配水随着钢种、断面和拉速的不同而实时跟踪自动调节,达到了使铸坯均匀冷却的效果。 展开更多
关键词 二冷水控制系统 S7-300 PLC WINCC 配方数据表
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Novel similarity measures for face representation based on local binary pattern
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作者 祝世虎 封举富 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2009年第2期223-226,共4页
The successful face recognition based on local binary pattern(LBP)relies on the effective extraction of LBP features and the inferring of similarity between the extracted features.In this paper,we focus on the latter ... The successful face recognition based on local binary pattern(LBP)relies on the effective extraction of LBP features and the inferring of similarity between the extracted features.In this paper,we focus on the latter and propose two novel similarity measures for the local matching methods and the holistic matching methods respectively.One is Earth Mover's Distance with Hamming and Lp ground distance(EMD-HammingLp),which is a cross-bin dissimilarity measure for LBP histograms.The other is IMage Hamming Distance(IMHD),which is a dissimilarity measure for the whole LBP images.Experiments on FERET database show that the proposed two similarity measures outperform the state-of-the-art Chi-square similarity measure for extraction of LBP features. 展开更多
关键词 similarity measurement local binary pattern Earth Mover's Distance IMage Euclidean Distance
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