共查询到19条相似文献,搜索用时 156 毫秒
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讨论了高炉上料系统原料数据跟踪控制,给出了控制概念图及控制流程图,在宝钢高炉的实际应用中,取得了很好的效果。 相似文献
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带钢跟踪控制是过程控制系统中的重要功能。本文详细阐述了酸轧带钢跟踪控制原理、功能及实现,同时介绍了生产中碰到的问题,并对其进行技术改进。 相似文献
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为降低中厚板轧钢生产过程中的跟踪位置坐标误差,提高跟踪控制精度,开展在线循环跟踪控制方法在中厚板轧钢中的应用研究。通过基于在线循环跟踪控制方法的跟踪区域布置、中厚板轧钢参数变量设置、异常轧件跟踪与处理,提出一种全新的生产思路。通过对比实验证明,应用在线循环跟踪控制方法后,跟踪位置坐标与实际位置坐标相差控制在了-1.0cm~+1.0cm范围内,有效提高了中厚板轧钢跟踪控制精度,促进生产质量的全面提升。 相似文献
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分析了槽电阻与氧化铝浓度的之间的关系,对铝电解槽氧化铝浓度的控制方法进行了探讨。通过建立基于遗传神经网络的氧化铝浓度预测控制系统,对氧化铝浓度进行控制,实际应用效果良好。 相似文献
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介绍了石钢小方坯连铸机质量控制系统的主要设备和质量跟踪系统的主要功能,分析了该系统对异常数据的分类及处理、控制模型的实现方法和控制效果。 相似文献
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位置控制器在自动位置控制和物料跟踪中的应用 总被引:1,自引:0,他引:1
分析了位置控制器在位置控制中的作用,并对PLC实现坯料跟踪控制,做了详细的介绍。新系统改造后于1998年投入使用,为170无缝钢管公司达到设计产量,起到了不可替代的作用。 相似文献
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Over the past half century, research on human decision making has expanded from a purely behaviorist approach that focuses on decision outcomes, to include a more cognitive approach that focuses on the decision processes that occur prior to the response. This newer approach, known as process tracing, has employed various methods, such as verbal protocols, information search displays, and eye movement monitoring, to identify and track psychological events that occur prior to the response (such as cognitive states, stages, or processes). In the present article, we review empirical studies that have employed eye movement monitoring as a process tracing method in decision making research, and we examine the potential of eye movement monitoring as a process tracing methodology. We also present an experiment that further illustrates the experimental manipulations and analysis techniques that are possible with modern eye tracking technology. In this experiment, a gaze-contingent display was used to manipulate stimulus exposure during decision making, which allowed us to test a specific hypothesis about the role of eye movements in preference decisions (the Gaze Cascade model; Shimojo, Simion, Shimojo, & Scheier, 2003). The results of the experiment did not confirm the predictions of the Gaze Cascade model, but instead support the idea that eye movements in these decisions reflect the screening and evaluation of decision alternatives. In summary, we argue that eye movement monitoring is a valuable tool for capturing decision makers' information search behaviors, and that modern eye tracking technology is highly compatible with other process tracing methods such as retrospective verbal protocols and neuroimaging techniques, and hence it is poised to be an integral part of the next wave of decision research. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
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热冷轧订单追踪系统设计与实现 总被引:1,自引:0,他引:1
热冷轧订单追踪管理系统是武钢整体产销资讯系统中比较重要的子系统之一。掌控生产订单整个生产过程中的执行状况。整个系统以生产订单为中心,准确掌握生产订单的执行状况,动态掌握各工序间实物量流动情况,按订单准确计算待炼钢申请量并以此提出炼钢浇次计划,对无主板坯自动适配订单。 相似文献
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介绍一种新式智能型电机无功补偿装置,这种补偿器采用单片机控制,能够实现自动跟踪、自动补偿以达到提高电机功率因数,降低电机定子电流、电机温升等目的。 相似文献
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McCormick and Jolicoeur's (1991; 1994) zoom lens model of visual curve tracing proposes that curve tracing involves tracking a curve with a variable size local operator. Unspecified in their model is how the executive function guiding the processing field of this operator initially knows which direction to trace. An experiment was conducted to determine whether observers occasionally curve trace in the wrong direction. A typical curve tracing task involving the determination of whether two dots occur on the same line in a display consisting of two dots and two intertwining lines was used. Lengthening the curve segment at the beginning of a to-be-traced curve resulted in a slowing of response times only to dot locations close to the end of the to-be-traced line. Apparently, observers calculate curve tracing direction based on the spatial location of the second (i.e., target) dot, which can result in erroneously tracing in the wrong direction at dot locations farther along the line. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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介绍了通过STEP7编程软件开发实现了轧件跟踪功能,采用信号预测技术防止活套误动作而造成早套堆钢。 相似文献