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Annual Conference of the IEEE Industrial Electronics Society

作者： Hiroshi Miyata Mitaro Namiki Mikiko Sato Dept. of Computer and Information Sciences Faculty of Engineering Tokyo University of Agriculture and Technology

ISBN: (纸本)9781479902255

This paper presents the methods to prevent the QoS Spoofing attack, which disturbs the real-time network communications with malicious packets to delay or drop the control packets for process automation. The attack is new and unique threat introduced to the process automation, when the process automation users utilize wireless sensor network via plant wide backhaul network. sQoS is a HMAC based lightweight method to protect the real-time network communications from QoS Spoofing attack. This paper represents the design and prototyping of sQoS with the measurement result of its overhead time.

关键词： Security QoS Real-time network communication process automation process automation Quality of service PROTOTYPE measurement result process automation system Spoofing hashing message authentication(HMAC) Security Network communication

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Description of process automation system for the Plate Mill Shearing Line

Description of Process Automation System for the Plate Mill ...

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2nd International Conference on Engineering Materials, Energy, Management and Control

作者： Cui, Dongyan Xie, Zaixing Hebei United Univ Tangshan Tangshan Peoples R China Automat co Tangshan Iron & Steel CO LTD Tangshan Peoples R China

The process automation system for the plate mill shearing line was introduced in this paper. We mainly designed the hardware and software of the process automation system and described the detailed functions of this s... 详细信息

ISBN: (纸本)9783037853443

关键词： mill process automation system function

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Research and Application of automation Controlling system for Plate Ultra Fast Cooling process

Research and Application of Automation Controlling System fo...

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2nd International Conference on Materials and Products Manufacturing Technology (ICMPMT 2012)

作者： Chen, Xiaolin Wang, Bingxing Tian, Yong Yuan, Guo Wang, Zhaodong Wang, Guodong Northeastern Univ State Key Lab Rolling & Automat Shenyang Peoples R China

ISBN: (纸本)9783037855447

To implement the new generation thermo mechanical control process (NG-TMCP), the automatic control system of ultra fast cooling (UFC) was developed by combined with the renovation project of controlled cooling system in one plate production line. This system was composed of basic automation subsystem and process automation subsystem. As the main control unit of the basic automatic control system, a S7400 PLC system is used to control the UFC device and to achieve the chain control between the UFC system and the mill system. While the process control system is to realize the automatical setting of the cooling schedule by the developed finite element temperature field model and the temperature homogeneity model. The industry application shows that the NG-TMCP which is based on the UFC can reduce the alloy content effectively and implement the low-cost reduction produce of high-grade products.

关键词： Ultra fast cooling Basic automation system process automation system Plate New generation TMCP

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Plate Production Line automation Control system based on Automatic Gauge Control

Plate Production Line Automation Control System based on Aut...

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2nd International Conference on Green Power, Materials and Manufacturing Technology and Applications (GPMMTA 2012)

作者： Yu, Wenwei Wang, Xuetao Changzhou Inst Mechatron Technol Changzhou Peoples R China

ISBN: (纸本)9783037854969

The automation control system to plate production line is developed independently. It has been applied several plants in China and has a good effect. The whole automaton control system is designed as several levels: basic automation. system process, automation system. and HMI system. The control functions are realized with these levels. With AGC function in plate mill area basic automation system, the plate thickness accuracy can be guaranteed.

关键词： Plate Mill automation Control system Basic automation system process automation system

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Towards a lightweight CEP engine for embedded systems

Towards a lightweight CEP engine for embedded systems

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Annual Conference on IEEE Industrial Electronics Society

作者： Pawel Pietrzak Per Lindgren Henrik Makitaavola Department of Computer Science Electrical and Space Engineering Lulea University of Technology

ISBN: (纸本)9781467324199

Industrial process automation systems are adopting event based communication. Pushing control loops towards low-level devices implies a need for lightweight embedded devices that are able to recognize and to react to events. Atomic events however, such as a value read by an individual sensor exceeding certain value, do not separately suffice to capture scenarios where a reaction should occur to a sequence of low-level events matching certain pattern, rather than to a single atomic event. Therefore, it becomes desirable that resource-constrained low-level devices are equipped with some, possibly lightweight, form of event filtering and processing. In this paper we propose to implement a lightweight complex event processing using the concurrent reactive objects (CRO) model. A core feature of the CRO model is its s ability to react to atomic events. Between the reactions, which basically are function executions, the system remains idle, and thus does not occupy the CPU and is energy-efficient. Additionally, CRO models can be executed in an efficient and predictable manner onto resource constrained platforms and offers low-overhead real-time scheduling through exploiting underlying interrupt hardware according to given time constraints.

关键词： leveling mechanism Embedded systems Time constraints Lightweight Cathode ray oscilloscopes CEP LOW LEVEL process automation system

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Development and Application of automation Control system to Plate Production Line

Development and Application of Automation Control System to ...

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11th International Conference on Control, automation, Robotics and Vision (ICARCV 2010)

作者： Jiao Zhi-jie He Chun-yu Wang Jun Zhao Zhong Northeastern Univ State Key Lab Rolling & Automat Shenyang Peoples R China

ISBN: (纸本)9781424478132

The automation control system to plate production line is developed independently. The whole system is divided into several levels and control functions are put into effect by the basic automation system, process automation system and human-machine-interface (HMI) system. Plate production thickness accuracy depends on the Automatic Gauge Control (AGC) function in the basic automation system for the plate mill area. With date communication module, process tracking module, data management module, and model calculation module, the core process model setup function is implemented by process automation system. process monitoring and operation are implemented by HMI system. This automation control system proposed here has been applied successfully to several plate production lines in China with a good effect.

关键词： plate mill automation control system basic automation system process automation system

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Model based process control of the Megasteel steel plant

STAHL UND EISEN

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STAHL UND EISEN 2000年第3期120卷 47-53页

作者： Ponten, HJ Kleimt, B Schwarte, W PSI BT AG Abteilungsieiter Prozessautomatisierung 1 Dusseldorf Germany Inst Angew Forsch GmbH Betriebsforsh Inst VDEh Abt Automatisierung Dusseldorf Germany SMS Depmag AG Projektleiter Level 2 Dusseldorf Germany

The steel making plant of the Megasteel Sdn., Bhd., Kuala Lumpur, Malaysia, comprises two production lines, each consisting of a shaft furnace with fingers, a ladle furnace and a VDOB facility. As part of the construction of this new minimill, a turnkey level 2 process automation system was supplied and commissioned by the PSI-BT Business Technology for Industries AG (a joint venture between PSI AG and former BFI Bf), Dusseldorf. The main task of the level 2 sys-tem is to control and monitor all production steps and the mater-ial flow from the scrap yard to the take over of the heat at a CSP plant. In order to guarantee the high demands of the CSP facility concerning the liquid steel qual-ity, and to achieve a high level of reproducibility, the system comprises extensive automatic control functions for all facilities which are based on dynamic process models. For support of the quality management and for complete documentation of the production process, all relevant process data are stored in a long term archive and are available either as printed reports or via remote data base access. The automation system is integrated into the enterprise wide computer network and communicates with the basic automation system, the production planning system, the CSP automation system and the lab computer. It is successfully in operation since mid of 1999 and is at present in the final tuning phase of the process models.

关键词： molten steel quality Furnace conveyors Quality management process control material flow computer network automation system transient processes Silver Steel plants process automation system

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