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运用虚拟仪器技术,基于CompactRIO嵌入式平台设计一套矿井提升机智能监控系统。该系统具有提升机关键数据实时采集、数据处理分析、运行状态实时显示与仿真、互联网络发布、故障诊断并自动报警功能。本系统充分利用LabVIEW在信号采集处理的软硬件优势,改善了系统安全性和稳定性。 相似文献
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结合石油化工企业设备管理的现状,对基于状态的设备一体化管理系统开发进行阐述,并针对设备管理的需要就系统主要功能模块进行探究,解决了设备管理中实时监控、在线检测与故障诊断、设备寿命周期管理、设备运行状态显示及故障报警等主要问题,提出了石化企业设备管理的全新方案。 相似文献
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化工设备正向系统化、精密化、自动化和高速化的方向发展,机械设备运行状态的监控和故障诊断技术备受关注。本文介绍了铁谱分析技术的原理和特点,总结了铁谱技术在润滑剂性能评价、生物、医疗领域及运转装置的状态分析、预测中的应用和研究,指出了利用铁谱技术监控运转化工机械设备的研究及计算机辅助铁谱诊断设备运行系统软件的开发具有广阔的前景。 相似文献
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运用现代监测技术与小脑模型关节控制器(CMAC)神经网络,研究开发了矿用钻机监测与故障诊断系统。实验结果表明,本系统监测的实时性、精确度均满足要求,并且CMAC神经网络故障诊断技术具有较好的稳定性、快速性和可靠性. 相似文献
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纳米药物作为一种新兴技术,为肿瘤的精确定位和早期诊断、靶向、长效和联合治疗提供了重要的研发平台,为克服传统药物非特异性靶向和非选择性损伤机体组织的瓶颈问题提供了可能。近年来研究者基于量子点、纳米金、纳米介孔硅等无机纳米药物载体设计合成了大量可用于肿瘤诊疗的纳米药物,主要通过“核-壳”结构设计、表面修饰等方法提高纳米药物性能。综述了无机纳米材料作为纳米药物载体在肿瘤诊疗中的应用,详细介绍了纳米药物的设计策略和肿瘤诊疗作用机制,并对未来进行无机纳米药物在肿瘤诊疗中的临床应用进行了展望。 相似文献
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SERES水质自动监测仪的进样系统设计复杂,清洗比较麻烦,容易出现故障,而且维护费用较高。自行设计改进了进样系统,使之国产化、一体化,便于拆装和清洗,故障率低,并且造价低廉。 相似文献
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A statistic-based benchmark was proposed for performance assessment and monitoring of model predictive control; the benchmark was straightforward and achievable by recording a set of output data only when the control performance was good according to the user's selection. Principal component model was built and an autoregressive moving average filter was identified to monitor the performance; an improved T^2 statistic was selected as the performance monitor index. When performance changes were detected, diagnosis was done by model validation using recursive analysis and generalized likelihood ratio (GLR) method. This distinguished the fact that the performance change was due to plant model mismatch or due to disturbance term. Simulation was done about a heavy oil fractionator system and good results were obtained. Thediagnosis result was helpful for the operator to improve the system performance. 相似文献
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To achieve safe operation and to improve economics it is imperative to monitor and analyze demand and supply of utilities
and to meet utility needs in time. The main objective of motor/turbine processes is to manipulate optimal balances on steam
and electricity in utility plants. The optimal operation of motor/turbine processes is by far the most important to improve
economics in the utility plant. In order to analyze motor/turbine processes, steady state models for steam generation equipment
and steam distribution devices as well as turbine generators are developed and analyzed in this work. In addition, heuristics
concerning various operational situations are incorporated in the models. The motor/turbine optimal operation system is based
on utility models and operational knowledgebase, and provides optimal operating conditions when the amount of steam demand
from various steam headers is changed frequently. The optimal operation system also produces optimal selection of driving
devices for utility pumps to reduce operating cost. 相似文献
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介绍了组成粗苯回收操作故障诊断系统的研究对象、总体结构、知识库构造、故障树建立。推理机、全局数据库、输入数据、用户界面及数学模型等9部分的内容,给出了苯塔模拟计算的框图和诊断实例。 相似文献
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介绍了乌石化公司化纤厂总降压站35kV/6kV自动化系统的不停电换型改造,把传统的35kV/6kV少油断路器高压开关柜和中央控制保护屏在系统不停电的情况下,改造成带"四遥"功能的VD4真空断路器高压开关柜和后台监控的自动化系统。通过改造,消除事故隐患,减少设备维护,极大地提高了化纤厂电力系统供电的可靠性。 相似文献