This paper deals with automation of a creep-testing machine mainly dedicated to research activities. The requirements linked to the machine were established by the material science researchers. These requirements were...
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ISBN:
(纸本)9781538654132
This paper deals with automation of a creep-testing machine mainly dedicated to research activities. The requirements linked to the machine were established by the material science researchers. These requirements were then addressed to mechatronic researchers and teachers. In order to enhance the link between research activities and training in the engineering school linked to the research laboratory, students projects of Master degree driven by researchers were proposed. These projects were totally multi-disciplinary, mobilizing knowledge acquired by students during their cursus in the school. Several items were developed by students: automation, mechanics, power electronics and real-time programming.
This paper presents a programmable system design methodology used for controlling and supervising the motors of pumping units in petroleum extraction operations. The system is based on using programmablelogic Control...
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ISBN:
(纸本)9786197105124
This paper presents a programmable system design methodology used for controlling and supervising the motors of pumping units in petroleum extraction operations. The system is based on using programmable logic controllers (PLCs), fixed and mobile data networks, TCP/IP protocols and GPRS services.
An implementation of a class of advanced process control algorithms is considered. The class is related to adaptive control systems and it is characterized by nonlinearities of a controlled process and singularities o...
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ISBN:
(纸本)9781728169491
An implementation of a class of advanced process control algorithms is considered. The class is related to adaptive control systems and it is characterized by nonlinearities of a controlled process and singularities of an actuation channel. The implementation is suitable to be easily integrated into a modern industrial environment because it is based on industrial programmable logic controllers. The implementation is verified in hardware simulator that is connected to a numerical model of a nonlinear process.
This paper describes the implementation of serial communication between the PLC and the host- computer in the control system of home environment, gives a detailed introduction to the communication protocols, parameter...
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ISBN:
(纸本)9783037857519
This paper describes the implementation of serial communication between the PLC and the host- computer in the control system of home environment, gives a detailed introduction to the communication protocols, parameters setting and also gives part of the serial-communication program based on visual basic 6.0. It shows that this control system meets the requirements as expected.
Accurate training on electronic measurements can be obtained while experimenting with real sensors, electronic circuits and equipments. The paper presents an experimental system that allows the study and testing for t...
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ISBN:
(纸本)9781509060733
Accurate training on electronic measurements can be obtained while experimenting with real sensors, electronic circuits and equipments. The paper presents an experimental system that allows the study and testing for two ultrasonic sensors, the remote programming for one of them and the monitoring of switching output for each sensor. A programmable logic controller performs the sensor remote programming and monitoring. The guideline for studying, testing and monitoring the ultrasonic sensors helps students to select, comprehend and apply information from datasheets and catalogs, use the previously acquired theoretical knowledge, understand the sensor connection to the programmable logic controller for implementing the sensor remote programming and monitoring. The engineering undergraduates acquire new practical skills using ultrasonic sensors and programmable logic controller, analogue and digital circuits and other devices. The experimental system presented in this paper has been proved very useful in academic study for experimental training on electronic measurements.
By comparing various field bus technology, considering automobile electrical control system its own situation, we establish the automobile electrical control system method based on PLC mixed network, discuss the syste...
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ISBN:
(纸本)9783038352259
By comparing various field bus technology, considering automobile electrical control system its own situation, we establish the automobile electrical control system method based on PLC mixed network, discuss the system's design goals, function and main structure;Introduce PLC bus and LIN1.2 bus basic theory and protocol. Design the hardware circuit based on PLC bus and LIN1.2 bus protocol strictly including PLC node circuit design, LIN node circuit design and PLC/LIN gateway circuit design. The chips used in the circuit design and their performances are also detailed introduced. In the end, the system software is designed and the main flow chart is also given in this study.
This paper introduces Whimori CDK, an integrated development environment for PLC control programs based on IEC 61131-3 standard and TC6 XML schema. Whimori CDK consists of project manifest editor, LD graphic editor, L...
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ISBN:
(纸本)9780769535388
This paper introduces Whimori CDK, an integrated development environment for PLC control programs based on IEC 61131-3 standard and TC6 XML schema. Whimori CDK consists of project manifest editor, LD graphic editor, LD-to-IL translator, IL runtime, LD-to-SMV translator, SMV model checker etc. The components of Whimori are portable and independent since they have been developed as Eclipse plug-ins. Particularly LD-to-IL translator, LD-to-SMV translator and IL runtime are designed to be based on forma( semantics, implemented in Ocaml., and more reliable than other systems. This paper describes the overall structure of Whimori CDK and the features of graphic user interfaces and interior components.
XENON1T is a next generation Dark Matter search experiment using 3.5 tons of liquid xenon for direct detection of Dark Matter. A dual-phase liquid xenon Time Projection Chamber (TPC) shielded below 1400m of rock at th...
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ISBN:
(纸本)9781509020140
XENON1T is a next generation Dark Matter search experiment using 3.5 tons of liquid xenon for direct detection of Dark Matter. A dual-phase liquid xenon Time Projection Chamber (TPC) shielded below 1400m of rock at the Gran Sasso underground laboratory in Italy serves as both target and detector. The TPC is inside a 10m high by 9.5m diameter water Cherenkov detector serving as an active muon veto. The Slow Control system is based on industrial process control hardware and software. It is now being used to commission the detector. The system provides secure monitoring and control by collaborators, shifters and experts at both local and remote locations. 3.5 tons of liquid xenon requires extreme care to guard the safety of the instrumentation and to prevent the loss of any of the high value xenon. The system consists of a distributed architecture of networked local control units with touch panels for local control. Critical operations can be guarded by requiring specific conditions to be satisfied before they are allowed to be executed. Two Supervisory Control And Data Acquisition (SCADA) computers provide active-passive redundancy. All operating parameters and their history are stored and can be displayed. Alarm messages are sent by email, cellular network and by pre-recorded voice over land telephone lines. Experience with both the benefits and the disadvantages of using industrial process control hardware and software are presented.
Trustworthy operation of control systems and critical infrastructures, such as industrial control systems (ICS) or cyber physical systems (CPS) requires a secure and real-time code execution environment. Due to the im...
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Trustworthy operation of control systems and critical infrastructures, such as industrial control systems (ICS) or cyber physical systems (CPS) requires a secure and real-time code execution environment. Due to the importance and larger attack surfaces of these platforms, they are becoming attractive targets for malicious penetrations lead- ing to catastrophic failures with substantive impact. A promising defense against these attacks is to monitor the system states through physical side-channel signals. Physical side-channel monitors impose zero overhead to the target system, which is highly favorable for resource-constrained and real-time systems. Physical side-channel monitors are constructed based on side-channel signals in a data-driven fashion. Therefore, they benefit a lot from artificial intelligence (AI) techniques. AI has also been established as a popular class of algorithms for more general CPS such as autonomous systems. How- ever, the recently emerging studies on the adversarial robustness of AI models put their security in question: ”Are AI-powered systems as trustworthy as commonly thought?” This dissertation aims at investigating using AI to ensure trustworthy security and studying the security of AI-powered systems. First, I provide a tutorial-level discussion on utilizing structures in physical side-channel signals and AI models to construct physical side-channel monitors. Next, I look closer at Zeus, an AI-powered electromagnetic side-channel monitor I proposed. Zeus collects electromagnetic emanations from the micro-controller of a system and constructs a recurrent neural network-based anomaly detector to ensure the execution control flow integrity of the system. I evaluated Zeus on a commercial programmable logic controller (PLC) using real applications. Zeus was able to distinguish benign and malicious executions with an average accuracy of 98.8% and zero overhead. Additionally, I study the adversarial robustness of physical side-channel monit
This paper presents a command and control system implemented in Motru Hydro Power Plant. The system is an open system that allows further development of hardware and software, both the process and operating stations a...
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ISBN:
(纸本)9781424467259
This paper presents a command and control system implemented in Motru Hydro Power Plant. The system is an open system that allows further development of hardware and software, both the process and operating stations and in the communication system. System management is provided with the opportunity to connect to a higher level of supervision of the plant and monitoring SCADA systems in the central dispatcher (OPC 2.0, Modbus TCP / IP).
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