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办公室自动化系统的设计与研究
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作者 赵敏婵 《中国电子商务》 2013年第23期37-37,共1页
随着生活节奏的不断加快,我们工作效率的提高也面临巨大的挑战,然而现代互联网技术的发展为我们通过办公室自动化提高我们的工作效率提供了可能。办公室自动化技术能极好的替代传统的人力、物力的劳动方式,并能取代纸质存储型落后的... 随着生活节奏的不断加快,我们工作效率的提高也面临巨大的挑战,然而现代互联网技术的发展为我们通过办公室自动化提高我们的工作效率提供了可能。办公室自动化技术能极好的替代传统的人力、物力的劳动方式,并能取代纸质存储型落后的存储方式,增长了文案的保存时间,提高了其安全性、保密性。这种系统通过先进设备办公,其智能型、高效性能大幅提高工作效率,企业管理水平。 展开更多
关键词 办公室自动化系统OA管理系统模块
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基于云服务的软件自动化测试系统设计探究 被引量:2
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作者 高翔 侯昌平 朱杰媛 《通信电源技术》 2020年第17期117-119,共3页
对云服务软件自动化系统测试的相关需求和系统方面的设计与实现进行探讨和研究,设计系统运行后能够对智能化自动软件系统各个模块进行功能测试。实际应用证明,该系统具有操作简单、运行可靠以及性能优越等特点,完全符合自动化软件系统... 对云服务软件自动化系统测试的相关需求和系统方面的设计与实现进行探讨和研究,设计系统运行后能够对智能化自动软件系统各个模块进行功能测试。实际应用证明,该系统具有操作简单、运行可靠以及性能优越等特点,完全符合自动化软件系统的测试要求。 展开更多
关键词 云服务 自动化 稳定性
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变电站自动化系统的功能要求及应用
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作者 范伟毅 《高桥石化》 2008年第1期38-41,共4页
结合企业内部配电网的发展情况,简要介绍了配电网络自动化的一般结构类型的特点及适用情况,提出了采用微机综保装置、采集模块等新技术、新设备对改善和促进配电网自动化的必要性,具体讨论了自动化系统的功能要求和二次设备的设计原则。
关键词 变电站 自动化设 计功 能要求
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CPU开发工具链的自动设计
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作者 郑珺 潘雪增 +2 位作者 平玲娣 沈海斌 严晓浪 《计算机工程》 CAS CSCD 北大核心 2004年第13期191-194,共4页
EDA技术的成熟和进步,缩短了微处理器硬件设计和综合的周期。同时,开发工具链设计的自动化,已成了高效率、高质量嵌入式微处理器设计的重要内容。该文提出了采用体系结构描述语言(ADL)实现微处理器开发工具链自动设计的有效方法。介绍... EDA技术的成熟和进步,缩短了微处理器硬件设计和综合的周期。同时,开发工具链设计的自动化,已成了高效率、高质量嵌入式微处理器设计的重要内容。该文提出了采用体系结构描述语言(ADL)实现微处理器开发工具链自动设计的有效方法。介绍了这种方法在CK*CORE开发工具链设计中的应用情况,并探讨了体系结构描述语言的一些问题及进一步发展方向。 展开更多
关键词 体系结构描述语言 电子自动化 开发工具链
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New development of longwall mining equipment based on automation and intelligent technology for thin seam coal 被引量:10
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作者 Guo-fa WANG 《Journal of Coal Science & Engineering(China)》 2013年第1期97-103,共7页
The paper introduced complete sets of automatic equipment and technology used in thin seam coal face, and proposed the comprehensive mechanization and automation of safe and high efficiency mining models based on the ... The paper introduced complete sets of automatic equipment and technology used in thin seam coal face, and proposed the comprehensive mechanization and automation of safe and high efficiency mining models based on the thin seam drum shearer. The key technology of short length and high power thin seam drum shearer, and new type roof support with big extension ratio and plate canopy were introduced. The new research achievement on automatic control system of complete sets of equipment for the thin seam coal, which composed of electronic-hydraulic system, compact thin seam roof supports, high effective shearer with intelligent control system, and characterized by automatical follow-up and remote control technology, was described in this paper.. 展开更多
关键词 longwall mining thin coal seam complete sets of equipment automatic system intelligent system
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Development of CAD/CAM system and profile measuring device for CNC grinding machine to obtain an optimal grinding speed 被引量:2
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作者 LIM Sang-Heon KIM Jae-Hyun LEE Choon-Man 《Journal of Central South University》 SCIE EI CAS 2011年第1期146-152,共7页
Cam mechanics is one of the most popular devices for generating irregular motions and is widely used in automatic equipment,such as textile machines,internal combustion engines,and other automatic devices.In order to ... Cam mechanics is one of the most popular devices for generating irregular motions and is widely used in automatic equipment,such as textile machines,internal combustion engines,and other automatic devices.In order to obtain a positive motion from the follower using a rotating cam,its shape should be correctly designed and manufactured.The development of an adequate CAD/CAM system for a cam profile CNC grinding machine is necessary to manufacture high-precision cams.The purpose of this study is the development of a CAD/CAM system and profile measuring device for a CNC grinding machine to obtain an optimal grinding speed with a constant surface roughness.Three types of disk cams were manufactured using the proposed algorithm and procedures to verify effectiveness of the developed CAD/CAM system. 展开更多
关键词 CAM CAD/CAM system CNC grinding machine optimal grinding speed
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Implementation of a new PC based controller for a PUMA robot 被引量:2
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作者 FAROOQ M. 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第12期1962-1970,共9页
This paper describes the replacement of a controller for a programmable universal machine for assembly (PUMA) 512 robot with a newly designed PC based (open architecture) controller employing a real-time direct contro... This paper describes the replacement of a controller for a programmable universal machine for assembly (PUMA) 512 robot with a newly designed PC based (open architecture) controller employing a real-time direct control of six joints. The original structure of the PUMA robot is retained. The hardware of the new controller includes such in-house designed parts as pulse width modulation (PWM) amplifiers, digital and analog controllers, I/O cards, signal conditioner cards, and 16-bit A/D and D/A boards. An Intel Pentium IV industrial computer is used as the central controller. The control software is implemented using VC++ programming language. The trajectory tracking performance of all six joints is tested at varying velocities. Experimental results show that it is feasible to implement the suggested open architecture platform for PUMA 500 series robots through the software routines running on a PC. By assembling controller from off-the-shell hardware and software components, the benefits of reduced and improved robustness have been realized. 展开更多
关键词 Programmable universal machine for assembly (PUMA) robot Computed torque control (CTC) Pulse width modulation (PWM) amplifier Graphical user interface (GUI)
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An Expert System Based on Multi-reasoning Mechanism for Port Machine Diagnosis 被引量:1
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作者 Y. Ding G.L. Lin 《Journal of Shipping and Ocean Engineering》 2011年第2期101-108,共8页
Expert system plays an important role in port machine diagnosis, which aims at automatic equipment test for higher availability and efficiency of port operations. In this study, a port machine diagnosis expert system ... Expert system plays an important role in port machine diagnosis, which aims at automatic equipment test for higher availability and efficiency of port operations. In this study, a port machine diagnosis expert system is proposed based on multi-reasoning mechanism. Relying on the knowledge acquired from the experienced experts in the port machine engineering, the system builds a library of relative experience and a set of rules of reasoning and estimating. Multi-reasoning mechanism that simulates the decision-making process of domain experts is employed to achieve reliable diagnosis results. The reasoning machine integrates artificial neural network, uncertain decision making and decision tree, which complements each other by sustainable growing voting mechanism. The effect of this multi-reasoning mechanism is evaluated and validated by means of Matthew's Correlation Coefficient (MCC). The system incorporating the mechanism is successfully designed, implemented and applied in Shanghai Port. 展开更多
关键词 Port machine diagnosis multi-reasoning mechanism ANN uncertain decision making decision tree.
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Optimal Decoupling Control Method and Its Application to a Ball Mill Coal-pulverizing System 被引量:3
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作者 Yue Fu Chengwen Hong Jingyi Li 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2018年第6期1035-1043,共9页
Abstract-The conventional optimal tracking control method cannot realize decoupling control of linear systems with a strong coupling property. To solve this problem, in this paper, an optimal decoupling control method... Abstract-The conventional optimal tracking control method cannot realize decoupling control of linear systems with a strong coupling property. To solve this problem, in this paper, an optimal decoupling control method is proposed, which can simultaneousiy provide optimal performance. The optimal decoupling controller is composed of an inner-loop decoupling controller and an outer-loop optimal tracking controller. First, by introducing one virtual control variable, the original differential equation on state is converted to a generalized system on output. Then, by introducing the other virtual control variable, and viewing the coupling terms as the measurable disturbances, the generalized system is open-loop decoupled. Finally, for the decoupled system, the optimal tracking control method is used. It is proved that the decoupling control is optimal for a certain performance index. Simulations on a ball mill coal-pulverizing system are conducted. The results show the effectiveness and superiority of the proposed method as compared with the conventional optimal quadratic tracking (LQT) control method. 展开更多
关键词 Ball mill coal-pulverizing system linear system optimal decoupling control optimal quadratic tracking (LQT)control.
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Infrastructure-based localisation of automated coal mining equipment 被引量:31
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作者 Chad O. Hargrave Craig A. James Jonathon C. Ralston 《International Journal of Coal Science & Technology》 EI 2017年第3期252-261,共10页
A novel radar-based system for longwall coal mine machine localisation is described. The system, based on a radar-ranging sensor and designed to localise mining equipment with respect to the mine tunnel gate road infr... A novel radar-based system for longwall coal mine machine localisation is described. The system, based on a radar-ranging sensor and designed to localise mining equipment with respect to the mine tunnel gate road infrastructure, is developed and trialled in an underground coal mine. The challenges of reliable sensing in the mine environment are considered, and the use of a radar sensor for localisation is justified. The difficulties of achieving reliable positioning using only the radar sensor are examined. Several probabilistic data processing techniques are explored in order to estimate two key localisation parameters from a single radar signal, namely along-track position and across-track position, with respect to the gate road structures. For the case of across-track position, a conventional Kalman filter approach is sufficient to achieve a reliable estimate. However for along-track position estimation, specific infrastructure elements on the gate road rib-wall must be identified by a tracking algorithm. Due to complexities associated with this data processing problem, a novel visual analytics approach was explored in a 3D interactive display to facilitate identification of significant features for use in a classifier algorithm. Based on the classifier output, identified elements are used as location waypoints to provide a robust and accurate mining equipment localisation estimate. 展开更多
关键词 Localisation · Waypoint navigation · Machine learning · Radar ·Underground · Longwall mining· Automation
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Speed-assigned Position Tracking Control of SRM With Adaptive Backstepping Control 被引量:2
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作者 Jiajun Wang 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2018年第6期1128-1135,共8页
A novel speed-assigned method is applied to the position tracking control of switched reluctance motor(SRM).A speed control freedom can be drawn into the position control through speed assignment. Adaptive backsteppin... A novel speed-assigned method is applied to the position tracking control of switched reluctance motor(SRM).A speed control freedom can be drawn into the position control through speed assignment. Adaptive backstepping control is used to design the position controller for the SRM. The accuracy of position tracking of the SRM can be enhanced with speed assignment. A disturbance observer is further designed to enhance the estimation accuracy of the unknown load torque. Simulation results certify that the design scheme is right and effective. 展开更多
关键词 Backstepping control direct torque control (DTC) disturbance observer speed-assigned position tracking control switched reluctance motor (SRM)
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Seismic design and analysis of nuclear power plant structures 被引量:2
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作者 Pentti Varpasuo 《Engineering Sciences》 EI 2013年第3期10-19,共10页
The seismic design and analysis of nuclear power plant (NPP) begin with the seismic hazard assessment and design ground motion development for the site. The following steps are needed for the seismic hazard assessment... The seismic design and analysis of nuclear power plant (NPP) begin with the seismic hazard assessment and design ground motion development for the site. The following steps are needed for the seismic hazard assessment and design ground motion development:a. the development of regional seismo-tectonic model with seismic source areas within 500 km radius centered to the site;b. the development of strong motion prediction equations; c. logic three development for taking into account uncertainties and seismic hazard quantification;d. the development of uniform hazard response spectra for ground motion at the site;e. simulation of acceleration time histories compatible with uniform hazard response spectra. The following phase two in seismic design of NPP structures is the analysis of structural response for the design ground motion. This second phase of the process consists of the following steps:a. development of structural models of the plant buildings;b. development of the soil model underneath the plant buildings for soilstructure interaction response analysis;c. determination of instructure response spectra for the plant buildings for the equipment response analysis. In the third phase of the seismic design and analysis the equipment is analyzed on the basis of in-structure response spectra. For this purpose the structural models of the mechanical components and piping in the plant are set up. In large 3D-structural models used today the heaviest equipment of the primary coolant circuit is included in the structural model of the reactor building. In the fourth phase the electrical equipment and automation and control equipment are seismically qualified with the aid of the in-structure spectra developed in the phase two using large three-axial shaking tables. For this purpose the smoothed envelope spectra for calculated in-structure spectra are constructed and acceleration time is fitted to these smoothed envelope spectra. 展开更多
关键词 seismic hazard assessment design ground motion development analysis of structural response
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Multi-stage optimum design of magazine type automatic tool changer arm 被引量:5
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作者 KIM Jae-Hyun LEE Choon-Man 《Journal of Central South University》 SCIE EI CAS 2012年第1期174-178,共5页
To enhance machining efficiency,tool change time has to be reduced.Thus,for an automatic tool changer attached to a machining center,the tool change time is to be reduced.Also the automatic tool changer is a main part... To enhance machining efficiency,tool change time has to be reduced.Thus,for an automatic tool changer attached to a machining center,the tool change time is to be reduced.Also the automatic tool changer is a main part of the machining center as a driving source.The static attributes of the automatic tool changer using the commercial code,ANSYS Workbench V12,were tried to interpret.And the optimum design of automatic tool changer arm was proposed by performing the multi-stage optimum design.The shape optimization of the automatic tool changer was proposed and the result was verified to obtain acceptable improvements.It is possible to obtain an optimized model in which the maximum deformation,maximum stress,and mass are reduced by 10.46%,12.89% and 9.26%,respectively,compared with those of the initial model.Also,the results between conventional method by the design of experiments and proposed method by the multi-stage optimum design method were compared. 展开更多
关键词 automatic tool changer optimum design structural analysis exchange arm
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A simple anti-windup method for the Modified Smith Predictor 被引量:1
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作者 张广辉 钱锋 邵惠鹤 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2007年第5期732-736,共5页
For the first-order integrating processes with long delay, a Modified Smith Predictor (MSP) was analyzed when the control signal saturated. If the MSP controller has no anti-windup scheme, the saturation effectively c... For the first-order integrating processes with long delay, a Modified Smith Predictor (MSP) was analyzed when the control signal saturated. If the MSP controller has no anti-windup scheme, the saturation effectively chops off the control input resulting in performance deterioration. Thus, a simple and effective anti-windup scheme, without an additional parameter, is designed for the MSP. Simulation results illustrate that the proposed method may achieve good performance under the nominal and model uncertainty cases. 展开更多
关键词 ANTI-WINDUP integrating processes smith predictor time-delay system
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A Robust Interacting Multisensor State Fusion Based on Adaptive Outlier Controlling Multirate Model
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作者 牛沿茏 李建勋 《Journal of Shanghai Jiaotong university(Science)》 EI 2007年第5期577-583,共7页
An adaptive outlier controlling multirate model based on Hong’s multirate kinetic model was represented in order to resist the outliers and utilize their useful information. Wavelet transform was introduced to detect... An adaptive outlier controlling multirate model based on Hong’s multirate kinetic model was represented in order to resist the outliers and utilize their useful information. Wavelet transform was introduced to detect and control the outliers. The multirate information extraction and the controlling of outliers were properly integrated to establish an adaptive outlier controlling multirate model. The proposed model was applied to multisensor state fusion with interacting multiple model (IMM), and a robust interacting multisensor state fusion algorithm was established based on adaptive outlier controlling multirate model. The Monte-Carlo simulation shows that it could improve the accuracy of fusion estimation by 70% compared to Hong’s algorithm and at least 14% to Xiao’s algorithm. 展开更多
关键词 adaptive outlier controlling wavelet transform multirate model state fusion
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Uncertainty Model Validation for Unstable System
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作者 李征 顾国祥 《Journal of Donghua University(English Edition)》 EI CAS 2007年第3期323-325,共3页
Uncertainty model validation has been studied for stable system by several authors. This paper considers uncertainty model validation for unstable systems. Under a similar assumption to study for stable systam, a nece... Uncertainty model validation has been studied for stable system by several authors. This paper considers uncertainty model validation for unstable systems. Under a similar assumption to study for stable systam, a necessary and suffident condition is obtained for unstable uncertainty models not to be invalidated, which generalizes the results of previous study and show that the uncertainty model validation for unstable systems is again a boundary interpolation problem. 展开更多
关键词 model validation unstable system uncertaintymodel
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AN ANT COLONY ALGORITHM FOR MINIMUM UNSATISFIABLE CORE EXTRACTION 被引量:1
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作者 Zhang Jianmin Shen Shengyu Li Sikun 《Journal of Electronics(China)》 2008年第5期652-660,共9页
Explaining the causes of infeasibility of Boolean formulas has many practical applications in electronic design automation and formal verification of hardware.Furthermore,a minimum explanation of infeasibility that ex... Explaining the causes of infeasibility of Boolean formulas has many practical applications in electronic design automation and formal verification of hardware.Furthermore,a minimum explanation of infeasibility that excludes all irrelevant information is generally of interest.A smallest-cardinality unsatisfiable subset called a minimum unsatisfiable core can provide a succinct explanation of infea-sibility and is valuable for applications.However,little attention has been concentrated on extraction of minimum unsatisfiable core.In this paper,the relationship between maximal satisfiability and mini-mum unsatisfiability is presented and proved,then an efficient ant colony algorithm is proposed to derive an exact or nearly exact minimum unsatisfiable core based on the relationship.Finally,ex-perimental results on practical benchmarks compared with the best known approach are reported,and the results show that the ant colony algorithm strongly outperforms the best previous algorithm. 展开更多
关键词 Electronic Design Automation (EDA) Formal verification of hardware Minimum unsatisfiable core Ant colony algorithm Maximal satisfiable subformula
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Impeller modeling and analysis based on UG NX/KF and Fluent 被引量:5
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作者 王凌云 黄红辉 Rae W.West 《Journal of Central South University》 SCIE EI CAS 2012年第12期3430-3434,共5页
Parametric modeling of the impeller which drove a small wind device was built by knowledge fusion technology.NACA2410 airfoil blade was created by KF language.Using technology of UG/KF secondary development for the au... Parametric modeling of the impeller which drove a small wind device was built by knowledge fusion technology.NACA2410 airfoil blade was created by KF language.Using technology of UG/KF secondary development for the automatic modeling of wind turbine blade,the program can read in the airfoil data files automatically and the impeller model entity can be generated automatically.In order to modify the model,the aerodynamic characteristics of the impeller were analyzed for getting aerodynamic parameters by Fluent.The maximum force torch and best parameters of impeller were calculated.A physical prototype impeller was manufactured and the correctness of the design was verified,and the error of force torch between simulation and experimental results is about 10%.Parameterization design of the impeller model greatly improves the efficiency of modeling and flexibility of the CAD system. 展开更多
关键词 knowledge fusion airfoil wind turbine blade parametric design CAD/CAE
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Structural Optimization of Concrete Slab Frame Bridges Considering Investment Cost
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作者 Majid Solat Yavari Costin Pacoste Raid Karoumi 《Journal of Civil Engineering and Architecture》 2016年第9期982-994,共13页
The present study investigates computer-antomated design and structural optimization of concrete slab frame bridges considering investment cost based on a complete 3D model. Thus, a computer code with several modules ... The present study investigates computer-antomated design and structural optimization of concrete slab frame bridges considering investment cost based on a complete 3D model. Thus, a computer code with several modules has been developed to produce parametric models of slab frame bridges. Design loads and load combinations are based on the Eurocode design standard and the Swedish design standard for bridges. The necessary reinforcement diagrams to satisfy the ultimate and serviceability limit states, including fatigue checks for the whole bridge, are calculated according to the aforementioned standards. Optimization techniques based on the genetic algorithm and the pattern search method are applied. A case study is presented to highlight the efficiency of the applied optimization algorithms. This methodology has been applied in the design process for the time-effective, material-efficient, and optimal design of concrete slab frame bridges. 展开更多
关键词 Slab frame bridge structural design structural optimization genetic algorithm pattern search method.
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Automated Design and Visualization System of a House Foundation from Blocks
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作者 Algirdas Sokas 《Journal of Civil Engineering and Architecture》 2010年第9期26-31,共6页
This article analyzes creation methods of automated design system, presents design system of a house foundation from blocks. The creation methods of automated design system of a house foundation from blocks are discov... This article analyzes creation methods of automated design system, presents design system of a house foundation from blocks. The creation methods of automated design system of a house foundation from blocks are discovered with Unified Modeling Language. Analyzed objects-classes: block, specification, model. Graphical system can design foundation, form specification of objects and create 3D model of house foundation. There are several types and different dimensions of concrete blocks. The program optimally arranges selected blocks so that monolithic parts will be minimal volume. Program selects a house foundation blocks from database by using ActiveX Data Objects technology, which by programming method connects drawing and database. Drawing's graphical objects have additional data from which exchange of data between graphical system and database is executed. Visualization system and example of house foundation from blocks project with specifications is presented. Creation problems of automated design system are discussed and conclusions are made. 展开更多
关键词 Object-oriented programming house foundation design Unified Modeling Language visualization system.
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