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Teaching Reform and Exploration of Practical Courses Based on Programmable Control
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作者 Hang Xu 《Journal of Contemporary Educational Research》 2024年第6期211-215,共5页
As the country continues to promote the development of intelligent manufacturing,all industries are carrying out enterprise automation upgrading,the Pearl River Delta Intelligent Manufacturing Conference held in March... As the country continues to promote the development of intelligent manufacturing,all industries are carrying out enterprise automation upgrading,the Pearl River Delta Intelligent Manufacturing Conference held in March 2024 provides a direction guide for each enterprise on how to integrate the intelligent manufacturing technology into each link and provide direction guidance for enterprises to create new models and new business formats.College teachers,in focusing on the teaching process,should closely match the enterprise and social needs and cultivate excellent students.As the core controller of automation control,the application of programmable controllers in teaching is particularly important.In practical classes,by setting progressive difficulty,project guidance,team collaboration,and other links,students can master the automation equipment design of programmable control in repeated practice. 展开更多
关键词 programmable controller Practical course Project guidelines TEAMWORK
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Programmable Logic Controller Block Monitoring System for Memory Attack Defense in Industrial Control Systems
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作者 Mingyu Lee Jiho Shin Jung Taek Seo 《Computers, Materials & Continua》 SCIE EI 2023年第11期2427-2442,共16页
Cyberattacks targeting industrial control systems(ICS)are becoming more sophisticated and advanced than in the past.A programmable logic controller(PLC),a core component of ICS,controls and monitors sensors and actuat... Cyberattacks targeting industrial control systems(ICS)are becoming more sophisticated and advanced than in the past.A programmable logic controller(PLC),a core component of ICS,controls and monitors sensors and actuators in the field.However,PLC has memory attack threats such as program injection and manipulation,which has long been a major target for attackers,and it is important to detect these attacks for ICS security.To detect PLC memory attacks,a security system is required to acquire and monitor PLC memory directly.In addition,the performance impact of the security system on the PLC makes it difficult to apply to the ICS.To address these challenges,this paper proposes a system to detect PLC memory attacks by continuously acquiring and monitoring PLC memory.The proposed system detects PLC memory attacks by acquiring the program blocks and block information directly from the same layer as the PLC and then comparing them in bytes with previous data.Experiments with Siemens S7-300 and S7-400 PLC were conducted to evaluate the PLC memory detection performance and performance impact on PLC.The experimental results demonstrate that the proposed system detects all malicious organization block(OB)injection and data block(DB)manipulation,and the increment of PLC cycle time,the impact on PLC performance,was less than 1 ms.The proposed system detects PLC memory attacks with a simpler detection method than earlier studies.Furthermore,the proposed system can be applied to ICS with a small performance impact on PLC. 展开更多
关键词 programmable logic controller industrial control system attack detection
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Design of 32 kbit one-time programmable memory for microcontroller units 被引量:1
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作者 JEON Hwang-gon CHOI In-hwa +1 位作者 HA Pan-bong KIM Young-hee 《Journal of Central South University》 SCIE EI CAS 2012年第12期3475-3483,共9页
A 32 kbit OTP(one-time programmable)memory for MCUs(micro-controller units)used in remote controllers was designed.This OTP memory is used for program and data storage.It is required to apply 5.5V to BL(bit-line)and 1... A 32 kbit OTP(one-time programmable)memory for MCUs(micro-controller units)used in remote controllers was designed.This OTP memory is used for program and data storage.It is required to apply 5.5V to BL(bit-line)and 11V to WL(word-line)for a OTP cell of 0.35μm ETOX(EEPROM tunnel oxide)type by MagnaChip.We use 5V transistors on column data paths to reduce the area of column data paths since they require small areas.In addition,we secure device reliability by using HV(high-voltage)transistors in the WL driver.Furthermore,we change from a static logic to a dynamic logic used for the WL driver in the core circuit.Also,we optimize the WD(write data)switch circuit.Thus,we can implement them with a small-area design.In addition,we implement the address predecoder with a small-area logic circuit.The area of the designed 32 kbit OTP with 5V and HV devices is 674.725μm×258.75μm(=0.1745mm2)and is 56.3% smaller than that using 3.3V devices. 展开更多
关键词 one-time programmable memory micro controller unit EEPROM tunnel oxide small-area
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A novel fuzzy logic direct torque controller for a permanent magnet synchronous motor with a field programmable gate array 被引量:1
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作者 陈永军 《Journal of Chongqing University》 CAS 2008年第3期228-233,共6页
A high-performance digital servo system built on the platform of a field programmable gate array (FPGA),a fully digitized hardware design scheme of a direct torque control (DTC) and a low speed permanent magnet synchr... A high-performance digital servo system built on the platform of a field programmable gate array (FPGA),a fully digitized hardware design scheme of a direct torque control (DTC) and a low speed permanent magnet synchronous motor (PMSM) is proposed. The DTC strategy of PMSM is described with Verilog hardware description language and is employed on-chip FPGA in accordance with the electronic design automation design methodology. Due to large torque ripples in low speed PMSM,the hysteresis controller in a conventional PMSM DTC was replaced by a fuzzy controller. This FPGA scheme integrates the direct torque controller strategy,the time speed measurement algorithm,the fuzzy regulating technique and the space vector pulse width modulation principle. Experimental results indicate the fuzzy controller can provide a controllable speed at 20 r min-1 and torque at 330 N m with satisfactory dynamic and static performance. Furthermore,the results show that this new control strategy decreases the torque ripple drastically and enhances control performance. 展开更多
关键词 fuzzy control direct torque control field programmable gate array permanent magnet synchronous motor
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Application of Programmable Controller in a Rail Welding Machine
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作者 Dai Hong Department of Materials Engineering, Southwest Jiaotong University, Chengdu 610031, China Xiang Junjie Long Zhuohong Chengdu Rail Welding Factory, Chengdu 610037, China 《Journal of Modern Transportation》 1997年第1期80-85,共6页
An innovation is conducted on a K190πK rail auto welding machine because of its poor stability in quality of welding joints. A new control system based on a programmable controller is designed to replace the old o... An innovation is conducted on a K190πK rail auto welding machine because of its poor stability in quality of welding joints. A new control system based on a programmable controller is designed to replace the old one. The new control system is of higher accuracy in controlling sequence and good ability in anti disturbance, and is convenient to operate. The comparison tests are carried out. The experimental results show that the quality of welded joints is greatly increased by the improved welding mechine. 展开更多
关键词 rail welding maching programmable controller control system quality of welding joint
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Application of Programmable Logic Controller in Hydraulic Spring Eye Machine
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作者 Yan Zhao Linzhi Cheng 《通讯和计算机(中英文版)》 2006年第1期97-101,共5页
关键词 编程人员 编程逻辑 管理程序 操作系统
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造纸机分布传动可编程控制器PCC系统的应用
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作者 苏鹏飞 孟磊 《造纸科学与技术》 2024年第2期98-101,共4页
PCC可编程控制器以其强大的数据处理能力、高运算速度和可靠网络连接等优势,在在造纸工业中得到广泛应用,充分发挥其优势有助于推进造纸机的智能化发展、提升造纸机的技术水平。对此,简述了PCC系统控制原理,设计了以PCC B&R 2005为... PCC可编程控制器以其强大的数据处理能力、高运算速度和可靠网络连接等优势,在在造纸工业中得到广泛应用,充分发挥其优势有助于推进造纸机的智能化发展、提升造纸机的技术水平。对此,简述了PCC系统控制原理,设计了以PCC B&R 2005为主控制器、操作面板为人机界面、PROFIBUS现场总线为通信方式的造纸机分布传动控制系统,对系统中主要硬件选型与配置、系统通信方式、下位机软件设计等进行了详细说明,并基于组态王与PCC进行造纸机分布传动上位机监控界面的设计,以期提高造纸机分布传动控制系统的控制精度、实时性和稳定性。 展开更多
关键词 造纸机 分布传动控制系统 可编程控制器pcc 网络通信 监控界面
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Synthesis of Nonlinear Control of Switching Topologies of Buck-Boost Converter Using Fuzzy Logic on Field Programmable Gate Array (FPGA) 被引量:1
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作者 Johnson A. Asumadu Vaidhyanathan Jagannathan Arkhom Chachavalnanont 《Journal of Intelligent Learning Systems and Applications》 2010年第1期36-42,共7页
An intelligent fuzzy logic inference pipeline for the control of a dc-dc buck-boost converter was designed and built using a semi-custom VLSI chip. The fuzzy linguistics describing the switching topologies of the conv... An intelligent fuzzy logic inference pipeline for the control of a dc-dc buck-boost converter was designed and built using a semi-custom VLSI chip. The fuzzy linguistics describing the switching topologies of the converter was mapped into a look-up table that was synthesized into a set of Boolean equations. A VLSI chip–a field programmable gate array (FPGA) was used to implement the Boolean equations. Features include the size of RAM chip independent of number of rules in the knowledge base, on-chip fuzzification and defuzzification, faster response with speeds over giga fuzzy logic inferences per sec (FLIPS), and an inexpensive VLSI chip. The key application areas are: 1) on-chip integrated controllers;and 2) on-chip co-integration for entire system of sensors, circuits, controllers, and detectors for building complete instrument systems. 展开更多
关键词 Multi-Fuzzy Logic controller (MFLC) Field programmable Gate Array (FPGA) BUCK-BOOST Converter BOOLEAN Look-Up TABLE CO-INTEGRATION
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Application of PLC programmable control technology in the mine pit transportation system
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《International English Education Research》 2013年第12期44-46,共3页
This paper summarizes the definition, function, and characteristics of the programmable conlrol technology, and especially analyzes the operation mode of the 750V DC traction power supply system, the protection settin... This paper summarizes the definition, function, and characteristics of the programmable conlrol technology, and especially analyzes the operation mode of the 750V DC traction power supply system, the protection setting the defects of the original system and the factors influencing the safety of power supply. Aimed at the equipment of the PLC programmable control system used in the mine transportation system in recent years, combining parts of the PLC programmable control system equipment used and installed in Tong Ting Coal Mine, this paper introduces the role of the PLC programmable control system and the economic benefits and safety effect. 展开更多
关键词 PLC programmable controller mine transportation
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Programmable Control System with Applications in Alternating Current Motors Control
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作者 Andrei Cozma Dan Pitica 《通讯和计算机(中英文版)》 2011年第9期771-779,共9页
关键词 可编程控制系统 交流电动机 电动机控制 高速数字信号处理器 电流控制器 三相异步电动机 应用 信号采集模块
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造纸设备新一代PCC可编程计算机控制器应用研究 被引量:1
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作者 王金炜 韩鹏 王军红 《造纸科学与技术》 2023年第4期56-58,88,共4页
随着计算机技术的发展和广泛应用,控制器(PC)已经成为计算机的重要组成部分,几乎所有工业控制都离不开PC机。它是一种高性能、高可靠性、多功能的工业计算机。目前,市面上PC机都可以通过“PCI总线”来连接多个设备,可编程控制器(PLC)是... 随着计算机技术的发展和广泛应用,控制器(PC)已经成为计算机的重要组成部分,几乎所有工业控制都离不开PC机。它是一种高性能、高可靠性、多功能的工业计算机。目前,市面上PC机都可以通过“PCI总线”来连接多个设备,可编程控制器(PLC)是工业控制领域中应用最广泛、技术最成熟、开发周期最短的计算机系统之一,而新一代可编程控制器PCC(ProgrammableCycle-IO)是一种性能优越,功能强大的新型工业计算机。在造纸工业中PCC控制器应用于纸机控制系统中,既可充分发挥其运算速度快、控制精度高、抗干扰能力强等优势,又能有效地降低设备成本和运行费用,提高了纸机自动化程度,从而减少人工干预。 展开更多
关键词 造纸设备 新一代pcc 编程 计算机控制器
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Development of FPGA Based NURBS Interpolator and Motion Controller with Multiprocessor Technique 被引量:2
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作者 ZHAO Huan ZHU Limin +1 位作者 XIONG Zhenhua DING Han 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2013年第5期940-947,共8页
The high-speed computational performance is gained at the cost of huge hardware resource,which restricts the application of high-accuracy algorithms because of the limited hardware cost in practical use.To solve the p... The high-speed computational performance is gained at the cost of huge hardware resource,which restricts the application of high-accuracy algorithms because of the limited hardware cost in practical use.To solve the problem,a novel method for designing the field programmable gate array(FPGA)-based non-uniform rational B-spline(NURBS) interpolator and motion controller,which adopts the embedded multiprocessor technique,is proposed in this study.The hardware and software design for the multiprocessor,one of which is for NURBS interpolation and the other for position servo control,is presented.Performance analysis and experiments on an X-Y table are carried out,hardware cost as well as consuming time for interpolation and motion control is compared with the existing methods.The experimental and comparing results indicate that,compared with the existing methods,the proposed method can reduce the hardware cost by 97.5% using higher-accuracy interpolation algorithm within the period of 0.5 ms.A method which ensures the real-time performance and interpolation accuracy,and reduces the hardware cost significantly is proposed,and it’s practical in the use of industrial application. 展开更多
关键词 NURBS interpolator FPGA-based interpolation MULTIPROCESSOR system on a programmable chip (SOPC) motion controller
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Research on PCC Control Method for Ribbon-free Random Winding 被引量:1
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作者 魏建 王明红 +2 位作者 汤以范 陆文华 吴文英 《Journal of Donghua University(English Edition)》 EI CAS 2004年第5期106-110,共5页
Based on analyzing the overlap appearance of random winding, basic principles of ribbon-free random winding and parametric selections for anti-overlap are discussed. The ribbon-free random winding control system and i... Based on analyzing the overlap appearance of random winding, basic principles of ribbon-free random winding and parametric selections for anti-overlap are discussed. The ribbon-free random winding control system and its related hardware construction as well as its software design are introduced by applying PCC technology to high speed spinning machine of synthetic filament. 展开更多
关键词 synthetic filament overlap ribbon-free random winding traverser pcc (programmable Computer controller) control system
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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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Synchro Controller of Radar on FPGA
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作者 Jiang Tie-zhen, Shi Zhen-hua, Wu Shi-caiSchool of Electronic Information, Wuhan University, Wuhan 430072,Hubei, China 《Wuhan University Journal of Natural Sciences》 EI CAS 2003年第02A期409-413,共5页
This paper mainly represents the realization of synchro controller based on the programmable logic devices FPGA by request of HF ground wave radar synchro controller under the instance of making the best of the virtue... This paper mainly represents the realization of synchro controller based on the programmable logic devices FPGA by request of HF ground wave radar synchro controller under the instance of making the best of the virtues of FPGA. This design introduces the data communication between PC and synchro controller by PC Bus, which can carry the synchronous signals parameters to RAM of synchro controller, then according to the theory that the result of comparing counter value with signals parameters is the needed wave, we produce all waves HF ground wave radar needs, moreover all waves are produced time-sharing in order to save resources. 展开更多
关键词 Data communication systems Field programmable gate arrays programmable logic controllers SYNCHRONIZATION
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Real-time hybrid simulation of structures equipped with viscoelastic-plastic dampers using a user-programmable computational platform 被引量:2
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作者 Jack Wen Wei Guo Ali Ashasi-Sorkhabi +1 位作者 Oya Mercan Constantin Christopoulos 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2017年第4期693-711,共19页
A user-programmable computational/control platform was developed at the University of Toronto that offers real-time hybrid simulation (RTHS) capabilities. The platform was verified previously using several linear ph... A user-programmable computational/control platform was developed at the University of Toronto that offers real-time hybrid simulation (RTHS) capabilities. The platform was verified previously using several linear physical substructures. The study presented in this paper is focused on further validating the RTHS platform using a nonlinear viscoelastic-plastic damper that has displacement, frequency and temperature-dependent properties. The validation study includes damper component characterization tests, as well as RTHS of a series of single-degree-of-freedom (SDOF) systems equipped with viscoelastic-plastic dampers that represent different structural designs. From the component characterization tests, it was found that for a wide range of excitation frequencies and friction slip loads, the tracking errors are comparable to the errors in RTHS of linear spring systems. The hybrid SDOF results are compared to an independently validated thermal- mechanical viscoelastic model to further validate the ability for the platform to test nonlinear systems. After the validation, as an application study, nonlinear SDOF hybrid tests were used to develop performance spectra to predict the response of structures equipped with damping systems that are more challenging to model analytically. The use of the experimental performance spectra is illustrated by comparing the predicted response to the hybrid test response of 2DOF systems equipped with viscoelastic-plastic dampers. 展开更多
关键词 real-time hybrid simulation user-programmable computational/control platform supplemental dampers performance spectra
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Grid Interconnection of Wind Energy System at Distribu-tion Level Using Intelligence Controller
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作者 W. Z. Gandhare S. C. Hete 《Energy and Power Engineering》 2013年第4期382-386,共5页
Wind generation is being increasingly connected at distribution level due to increasing load demand. Permanent magnet synchronous generator (PMSG) is connected to?the wind turbine directly. Through the full power cont... Wind generation is being increasingly connected at distribution level due to increasing load demand. Permanent magnet synchronous generator (PMSG) is connected to?the wind turbine directly. Through the full power control of AC-DC-AC converters, the electrical power is then connected to the power grid. The power conversion circuits are made up of generator-side three phase diode rectifiers, boost converter and the grid-side three bridges and four wire inverters. A boost converter is controlled through an intelligence controller to maintained DC power constant despite of Variable output of PMSG, the grid-connected operation is constructed using the hysteresis current control method. The inverter is controlled to perform following function 1) power converter to inject power generated from RES to the grid, and 2) shunt APF to compensate current unbalance, load current harmonics, load reactive power demand and load neutral current. The model is implemented in MATLAB/ Simulink using sim power system. 展开更多
关键词 Point of COMMON Coupling (pcc) Distributed Generation (DG) INTELLIGENCE controller
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Real-time programmable coding metasurface antenna for multibeam switching and scanning
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作者 Jia-Yu Yu Qiu-Rong Zheng +3 位作者 Bin Zhang Jie He Xiang-Ming Hu Jie Liu 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第9期260-267,共8页
Novel electromagnetic wave modulation by programmable dynamic metasurface promotes the device design freedom,while multibeam antennas have sparked tremendous interest in wireless communications.A programmable coding a... Novel electromagnetic wave modulation by programmable dynamic metasurface promotes the device design freedom,while multibeam antennas have sparked tremendous interest in wireless communications.A programmable coding antenna based on active metasurface elements(AMSEs)is proposed in this study,allowing scanning and state switching of multiple beams in real time.To obtain the planar array phase distribution in quick response,the aperture field superposition and discretization procedures are investigated.Without the need for a massive algorithm or elaborate design,this electronically controlled antenna with integrated radiation and phase-shift functions can flexibly manipulate the scattering state of multiple beams under field-programmable gate array(FPGA)control.Simulation and experimental results show that the multiple directional beams dynamically generated in the metasurface upper half space have good radiation performance,with the main lobe directions closely matching the predesigned angles.This metasurface antenna has great potential for future applications in multitarget radar,satellite navigation,and reconfigurable intelligent metasurfaces. 展开更多
关键词 programmable coding metasurface multibeam modulation real-time control ANTENNA
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Evaluation of Selected Control Programming Languages for Process Engineers by Means of Cognitive Effectiveness and Dimensions
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作者 Gülden Bayrak Felix Ocker Birgit Vogel-Heuser 《Journal of Software Engineering and Applications》 2017年第5期457-481,共25页
Different programming languages can be used for discrete, abstract and process-oriented programming. Depending on the application, there exist additional requirements, which are not fulfilled by every programming lang... Different programming languages can be used for discrete, abstract and process-oriented programming. Depending on the application, there exist additional requirements, which are not fulfilled by every programming language. Flexible programming and maintainability are especially important requirements for process engineers. In this paper, the programming languages Activity Diagram, State Chart Diagram and Sequential Function Chart are compared and evaluated with regard to these requirements. This evaluation is based on the principles of cognitive effectiveness and cognitive dimensions. The aim of this paper is to identify the programming language suited best for controlling sequential processes, e.g. thermomechanical or batch processes. 展开更多
关键词 COGNITION COGNITIVE Science GRAPHICAL User Interfaces HUMAN Computer Interaction HUMAN Factors programmable Logic controllers Process control
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Embedded Programmable Single Point Multiple Output Intelligent Data Acquisition and Transmission System
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作者 Guoli QU Yun WU +1 位作者 Gaihua XU Lin CHEN 《Asian Agricultural Research》 2016年第11期54-60,共7页
To effectively solve the problems of inconsistent communication protocols in automatic monitoring equipment,and limited data acquisition transmission and monitoring equipment,this paper developed programmable single p... To effectively solve the problems of inconsistent communication protocols in automatic monitoring equipment,and limited data acquisition transmission and monitoring equipment,this paper developed programmable single point multiple output intelligent data acquisition and transmission system. It made an in-depth elaboration of the data acquisition and transmission system from hardware design,software architecture and principle,main functions and technical parameters. Finally,it came up with four innovation points:(i) intelligent(automatic)matching a variety of communication protocols for environmental monitoring equipment,(ii) realizing multi-protocol and multi-target parallel data transmission,(iii) realizing remote dynamic input of control instructions through wired or wireless network,and(iv) supporting configuration(process) simulation of field equipment DCS operating conditions. 展开更多
关键词 programmable Single point multiple output Intelligent matching multi-protocols Reverse remote control
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