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面向敏捷制造的AMCS研究 总被引:6,自引:0,他引:6
在分析制造系统控制结构的发展轨迹的基础上,提出了具有分散化,集成化,智能化特征的先进制造系统模式,构建了车间级的敏捷制造系统--先进管理控制系统(AMCS)的体系结构及其功能模型。AMCS基于现场控制系统FCS的两层控制结构,在功能上则融合了制造执行系统MES的车间管理功能和FCS的控制功能。AMCS与传统的MES不同,它不只作为一种提供解决领域问题的软件手段,而在更大程度上是一种用集成手段解决问 相似文献
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以长春柔性制造实验系统为研究对象,研究了柔性制造系统的运行监视与故障诊断技术,研制了基于实时动画和人工智能的FMES运行监视和故障诊断系统。介绍了FMES-MDS的总体结构讨论了FMES-MDS中的信息检测方法和故障诊断技术。 相似文献
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柔性制造系统检测监控系统的研究 总被引:1,自引:0,他引:1
根据柔性制造系统的实际需要,研制了一个FMS运行状态检测监控系统,介绍了该系统的功能与结构,论述了系统与FMS的集成方法,讨论了系统的工作流程及对FMS故障的处理策略。 相似文献
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从开展FMS检测监控技术研究的实际需要出发,讨论了建立FMS检测控实验系统的必要性。介绍了一个用FMS检测监控技术研究的FMS检测监控实验系统的基本结构和功能,该系统采用递阶控制的结构形式和模块化的构造方法,可根据不同的研究工作需要进行重新组合,构造出所需要的研究实验环境。 相似文献
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南京航空航天大学计算机集成制造系统(CIMS)工程研究中心南京航空航天大学CIMSI程研究中心的主要研究方向是CIMS、FMS整体技术及各单元技术的基础理论研究、应用研究和工程项目的研究与开发,包括系统总体设计、系统详细设计、软件开发、模拟仿真、CA... 相似文献
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从FMS的应用现状入手,结合FMS的原理和其他先进制造方法和制造模式,分析了FMS在应用中的误区,并就此提出了改进措施。 相似文献
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CIMS的分形结构与嵌套式集成 总被引:1,自引:0,他引:1
基于对计算机集成制造系统分形结构的认识,揭示了CISM的结构特征,深入讨论了CIMS的集成问题,提出了集成粒度、集成度等概念和一种进化集成方式-嵌套式集成,为CIMS的实施提供了方法论指导。 相似文献
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本文介绍了一个飞机结构件CAPP系统FA-CAPP,它是运行于成都飞机工业公司CIMS环境的集成化CAPP系统,实现了同CIMS各集成单元的集成。文中介绍了FA-CAPP的主要功能,重点讨论了CAD/CAPP/CAM的集成、特征基工艺决策及其专家系统、知识库技术的应用等关键技术问题。 相似文献
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Smart manufacturing is the core idea of the fourth industrial evolution. For a smart manufacturing shop floor, real-time monitoring, simulation and prediction of manufacturing operations are vital to improve the production efficiency and flexibility. In this paper, the Cyber-Physical System (CPS) and Digital Twin technologies are introduced to build the interconnection and interoperability of a physical shop floor and corresponding cybershop floor. A Digital Twin-based Cyber-Physical Production System (DT-CPPS) is further established, and the configuring mechanism, operating mechanism and real-time data-driven operations control of DT-CPPS are discussed in detail. It is expected that DT-CPPS will provide the basis for shop floors to march towards smart manufacturing. 相似文献
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Ubiquitous augmented reality (UAR) implementation can benefit smart shop floor operations significantly. UAR from a user's first-person view can support and provide the user with suitable and comprehensive information without him/her being distracted from ongoing tasks. A natural hand-based interaction interface, namely, a mobile bare-hand interface (MBHI), is proposed to assist a user in exploring and navigating a large amount of information for a task in the user's first-person view. The integration of a smart shop floor and UAR-based MBHI is particularly challenging. A real shop floor environment is composed of challenging conditions for the implementation of UAR, e.g., messy backgrounds and significant changes in illumination conditions. Meanwhile, the MBHI is required to provide precise and quick responses to minimize the difficulty of a user's task. In this study, a wearable UAR system integrated with an MBHI is proposed to augment the shop floor environment with smart information. A case study is implemented to demonstrate the practicality and effectiveness of the proposed UAR and MBHI system.The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-020-00295-1 相似文献
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虚拟车间动态重构模型的研究 总被引:2,自引:0,他引:2
阐述了敏捷制造模式下,车间的功能除了具有常规的生产管理和控制功能外,还具有实现单元动态重构的功能和通过网络对外合作的功能。在分析了虚拟车间动态重构的系统的关键技术的基础上,提出了基于多代理机的虚拟车间动态重构模型,讨论了Agent之间的协商机制。 相似文献
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针对定制型装备制造企业中具有有限缓冲区的开排队网制造单元,其车间负荷界限即缓冲设置难以确定的问题(buffer allocation problem,BAP),文章对每阶段具有有限缓冲区且含有多台加工设备的三阶段柔性流水车间(flexible flow shop,FFS)进行排队网建模,应用状态空间分解法对该模型进行分析求解,获得系统的一系列性能指标值。为了对该方法的有效性进行验证,对该模型设计仿真实验,并利用扩展法对模型进行求解,将数值结果进行比较分析,验证了利用该方法对FFS缓冲区进行优化配置的合理性,这对较大规模的多节点每阶段具有多台设备的流水车间负荷界限的有效设定及其规划具有参考和指导意义。 相似文献
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自动测试系统资源模型化设计 总被引:11,自引:0,他引:11
通过对通用自动测试系统设计方法的分析,提出了自动测试系统资源模型化的描述方法.该方法从数学的角度将系统的硬件资源纳入统一的逻辑表达范畴,按照硬件资源的功能设计了5大系统模型,并根据各个模型的特点设计了相应的数学函数,进而实现了系统资源的完备性描述,并实现了硬件资源与测试系统软件的交互.在实际工作中,将资源模型化设计纳入了适配器的设计过程中,取得了良好的效果.同时该工作为测试程序集的开发和仪器互换性设计奠定了基础. 相似文献
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Most of the past research on job shop scheduling has assumed the shop environment where the load-smoothing function in the production planning and control system is ignored and consequently no visibility is provided to the shop. In practice, some kind of load-smoothing is used to smooth the work load level of the shop across the periods, by pulling jobs forward or pushing jobs back. In this study, three load-smoothing approaches with two levels of control for each approach are proposed and tested with two order review/release decisions in a bottleneck job shop. No smoothing becomes a benchmark. Also, the effectiveness of a feedback loop between load-smoothing and the shop floor is investigated. Experiments were conducted in a six-machine job shop simulation model. Results showed that the employment of load-smoothing is important, and pulling jobs forward in a valley period is better than pushing back jobs in a peak period. Controlling the release of jobs to the shop floor in the order review/release phase, given the amount of jobs to be processed during the planning period, is not effective. Also, the feedback system between the planning phase and shop floor to maintain the minimum shop load becomes much more important than simply controlling job release time. 相似文献
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The high cost and long development cycle of shop floor control systems and the lack of true system integration capabilities are identified as one of the most challenging obstacles in deploying e-Manufacturing systems. Overcoming these obstacles is essential for manufacturers to execute a make-to-order business model in order to stay competitive and remain profitable in the future. We propose a formal method to generate the desired control trajectories and provide true integration mechanisms for shop floor control systems. Using the proposed architecture can result in the development of an e-Manufacturing system capable of achieving a substantial reduction of both the high cost and long development cycle currently required to engineer shop floor control systems. By taking advantage of both the linear growth of the complexity function in a structured adaptive supervisory control model and the information-centric characteristics of a virtual production line in a manufacturing execution system, a formal model, which we call an extended structured adaptive supervisory control, for a discrete manufacturing system is introduced. A shop floor control system based on the extended structured adaptive supervisory control model is built for an industrial testbed system. The shop floor control system is fully tested and evaluated. 相似文献