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2017 IEEE 第2届先进信息技术,电子与自动化控制国际会议(IAEAC 2017)

作者： Xuefeng LV Yaobin Xie Xiaodong Zhu Lu Ren State Key Laboratory of Mathematical Engineering and Advanced Computing

Program logical controllers(PLCs) are the kernel equipment of industrial control system(ICS) as they directly monitor and control industrial processes. Recently, ICS is suffering from various cyber th

ISBN: (纸本)9781467389808

关键词： programmable logical controller Bytecode Decompilation Mapping rules address byte decompilation programmable logic controllers Integrated circuits

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Control Program Design for Automated Guided Vehicle Systems via Petri Nets

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IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS 2015年第1期45卷 44-55页

作者： Luo, JiLiang Ni, HuiJuan Zhou, MengChu Huaqiao Univ Dept Control Sci & Engn Xiamen 361021 Peoples R China Tongji Univ Minist Educ Key Lab Embedded Syst & Serv Comp Shanghai 201804 Peoples R China New Jersey Inst Technol Dept Elect & Comp Engn Newark NJ 07102 USA

An ordinary Petri-net (PN) based approach is proposed to design a programmable logical controller (PLC) that prevents collisions among vehicles in an automated guided vehicle (AGV) system. First, a procedure is proposed to model an AGV system as a control-hardware PN. Second, a method is formulated to design a PN supervisor (the closed-loop PN) for collision prevention. This paper defines the line, merge, divide and intersection alignments, and then adds the transitions and arcs for these four alignments into the control-hardware PN, respectively. As a result, a closed-loop PN is obtained as the supervisor for preventing collisions among vehicles in an AGV system. Finally, a method is introduced to automatically translate a closed-loop PN into a ladder diagram by Boolean expressions. Consequently, the closed-loop PN can be implemented by a PLC. An example is used to illustrate this methodology.

关键词： Automated guided vehicle discrete event systems Petri nets programmable logical controller

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The Knee Wear Prediction of UHMWPE Tibial Insert Using VIPRO Platform

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Journal of Mechanics Engineering and Automation 2015年第11期5卷 591-600页

作者： Lucian Capitanu Luige Vladareanu Virgil Florescu Tribology Department Institute of Solid Mechanics of the Romanian Academy Bucharest 010141 Romania Robotics and Mechatronics Department Institute of Solid Mechanics of the Romanian Academy Bucharest 010141 Romania Mechanical Department Institute of Civil Engineering Bucharest 050236 Romania

The failure mechanism was postulated as a combination of the high level of loading during normal activities and a non-conforming contact mechanism between the femoral condyles and the tibial insert. The question that arises is： could be this phenomenon evaluated quantitatively a priori, e.g., could be the failure due to delamination wear predicted？ In order to do some finite element simulations were performed to dynamically determinate the contact area and contact pressure for three different activities. The results obtained using VIPRO platform lead to the conclusion that many clinically reported failures of the tibial tray are caused by the adhesive and fatigue wear.

关键词： Total knee prosthesis wear experimental methods experimental trials knee simulator programmable logical controller VIPRO platform.

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programmable-logical-controllerS SYNTHESIS FOR AUTOMATED-GUIDED-VEHICLE SYSTEMS USING ORDINARY PETRI NETS

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ASIAN JOURNAL OF CONTROL 2014年第6期16卷 1760-1770页

作者： Luo, Jiliang Ni, Huijuan Huaqiao Univ Inst Informat Sci & Engn Dept Control Sci & Engn Xiamen 361021 Peoples R China

An ordinary Petri-net (PN) based approach is proposed to design the programmable logical controller (PLC) for preventing collisions between vehicles in an automated guided vehicles (AGV) system. First, method is proposed to model an AGV system as an ordinary PN, called the plant PN. Second, for collision prevention in an AGV system, module control methods are proposed to design the PN supervisor (the closed-loop PN) by augmenting the plant PN. In detail, three modules are defined the line, divide, and merge modules, in the plant PN, and the control module methods are presented for each of these three modules. As a result, the closed-loop PN of an AGV system is obtained and can be analyzed using the PN theory. Finally, method is proposed to translate a closed-loop PN into a ladder diagram. Consequently, the PN supervisor is implemented by a PLC using these proposed methods. A laboratory AGV system is used to illustrate this approach.

关键词： Automated guided vehicle programmable logical controller Petri nets ladder diagram

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Remote Fault Diagnosis for Ion Nitrogen Furnace System 4

Remote Fault Diagnosis for Ion Nitrogen Furnace System

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4th International Conference on Intelligent System and Applied Material (GSAM)

作者： Cai, Limin Li, Peng Jianghan Univ Sch Phys & Informat Engn Wuhan 430056 Hubei Peoples R China Jianghan Univ Grad Fac Wuhan Hunan Peoples R China

ISBN: (纸本)9783038353140

In this paper, we propose a network-based remote diagnosis system for ion nitrogen furnace. This system consists of the site measurement, control and diagnosis end, GPRS communication module, and remote fault diagnosis end. This system can collect and transmit data for the remote fault diagnosis. Experiments demonstrate that the proposed system can satisfy the user-specified requirements.

关键词： Ion nitrogen furnace Remote diagnosis Fault diagnosis programmable logical controller Monitor and Control Generated System

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Implementation of PFC (Predictive Functional Control) in a petrochemical plant

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IFAC Proceedings Volumes 2014年第3期47卷 5333-5338页

作者： R. Haber U. Schmitz K. Zabet Institute of Process Engineering and Plant Design Laboratory of Process Automation Cologne University of Applied Science D-50679 Köln Betzdorfer Str. 2 Germany fax: +49-221-8275-2836 and Department for APC and process control technology Rheinland Refinery Shell Deutschland Oil GmbH Ludwigshafener Strasse 1 D-50389 Wesseling

PFC (Predictive Functional Control) is a simple but very effective SISO (Single-Input Single- Output) predictive controller which does not require any matrix inversion or numerical minimization of a cost function, therefore it is easy to realize in a PLCs (programmable logical controllers) or a DCS (Decentralized Control Systems). The manipulated variable and/or its increment, as well other variables can be constrained easier than when using PI(D) (Proportional, Integrating, and Derivating) controller. Furthermore PFC handles the dead time process better than with PI(D) controller. Three industrial applications of PFC for two distillation columns and a reactor in a petro-chemical plant were implemented and the experiences are presented here.

关键词： predictive functional control distillation column programmable logical controller

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The algorithm model of visual monitoring communication for PLC

The algorithm model of visual monitoring communication for P...

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2014 International Conference on Advanced Control, Automation and Robotics (ACAR2014)

作者： C.J.Ju G.K.Yang Z.Y.Li S.D.Zhang Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Ministry of Education of China

ISBN: (纸本)9781784660468

A new visual monitoring communication algorithm model is described in this paper which can improve the communication efficiency between the PLC(programmable logic controller) and its programming software. The model consists of dynamic packaging algorithm and scrolling view algorithm aiming at meeting real-time visual monitoring. It is described in detail that how to adjust the length of communication data frame and refresh the data of current scrolling view of the programming software concerning the algorithm model. The experimental results show that the communication efficiency and the interface refreshing properties of visual monitoring will be improved with the increase of communication traffic load which proves that the algorithm modelling is effective.

关键词： programmable logical controller PLC's programming software visual monitoring algorithm model

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Using compact system for measuring borehole temperature profiles

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IFAC Proceedings Volumes 2013年第28期46卷 132-137页

作者： Petr Vojcinak Tomas Vavrla Jiri Koziorek Department of Cybernetics and Biomedical Engineering VŠB – Technical University of Ostrava Czech Republic

This paper deals with problems of using an autonomous system for measuring temperature profiles inside boreholes. This system is a practical result of integrating various available approaches (i. e., using digital sensors of Dallas DS18B20 and analogue sensors of Pt1000, communication interfaces/buses of RS-232 and 1-Wire, a programmable logical controller of B&R X20 CP1484, and own developed software applications) into a compact measurement device. During our thermal response test (TRT) experiments, measurement of the temperature profiles is now an integral part of them, so the developed device must be not only quite simple, but also robust. This paper also includes summarizing existing practical experiences in the field of temperature profiles – measurement technology, data acquisition, data analysis, data presentation, and their role in connection with realizing the TRT experiments.

关键词： 1-Wire bus DS18B20 sensor BHE Borehole Communication process Data visualization HMI/SCADA application Measurement process programmable logical controller Pt1000 sensor RS- 232 interface Temperature profile Thermal response test experiment

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INVESTIGATION OF AUTOMATIC CONTROL SYSTEM IN WOOD DRYING FACILITIES 7

INVESTIGATION OF AUTOMATIC CONTROL SYSTEM IN WOOD DRYING FAC...

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7th International Conference on Electrical and Control Technologies, ECT 2012

作者： Karaliunas, Bronius Lukosiene, Dalia Andriusiene, Liudmila Vilnius Gediminas Tech Univ Vilnius Lithuania Vilnius Coll Technol & Design Vilnius Lithuania

ISBN: (纸本)9781634398015

The article analyses the automatic control systems in modern wood drying facilities as well as their functions and possibilities. The analysis of the publications available [1, 2, 3] indicates that nowadays there are widely applied in our country various types of wood drying facilities with different level of automation. Although the possibilities of the fully computer-assisted control systems at the wood drying facilities are considered to be rather extensive, but in the scientific publications available there has been noticed the shortage regarding the information on the structure of the systems, the algorithm concerning the manufacturing processes, programs, sensors and their interrelation and correlation.

关键词： wood drying facility automatic control programmable logical controller frequency converter temperature moisture humidity algorithm heating

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Automatic Control System of Copper Pipe and Aluminum Pipe Butt Resistance Welding Machine

Automatic Control System of Copper Pipe and Aluminum Pipe Bu...

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International Conference on Advanced in Control Engineering and Information Science (CEIS)

作者： Zhang Yue Han Li Sun Taili Li Qidong Zhang Xichuan First affiliation Address City and Postcode Second affiliation Address City and Postcode

It becomes a tendency that the application of copper pipe and aluminum pipe welding joints in the field of refrigeration. Based on analysis of Cu-Al pipe welding process, a PLC automatic control system was developed to accurately control the resistance welding machine. The executive mechanism is composed of pneumatic components and controlled by the PLC system to complete the Cu-Al pipe welding process. Under the PLC control, the welding time parameter can be changed, according to the pip size. And the time error of the control system is limited in 0.01s. When the coil temperature rises up to 90 degrees C or the network voltage fluctuates more than +/-10%, the control system alarms the operator and the welding process can not be started. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of [CEIS 2011]

关键词： Copper pipe Aluminum pipe butt resistance welding programmable logical controller

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