Remote diagnosis design for a PLC-based automated system: 1-implementation of three levels of architectures

Sekar, R.; Hsieh, Sheng‐Jen; Wu, Zhenhua

doi:10.1007/s00170-011-3314-6

Cited by 15 publications

(7 citation statements)

References 25 publications

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“…Bayesian networks were constructed in order to determine the optimal placements. Sekar et al (2011) compared three different fault diagnosis architectures using a PLC-based assembly cell as a prototype. The first architecture was comprised of remote web cam monitoring of the system and voice/text communication between operator and troubleshooter.…”

Section: Related Workmentioning

confidence: 99%

Video event detection for fault monitoring in assembly automation

Hughes

Fernando

Szkilnyk

et al. 2014

IJISTA

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A major goal of many manufacturers is to minimise production downtime caused by machine faults and equipment breakdowns. This goal is typically achieved using sensor-based systems that can quickly detect and diagnose machine faults of various types. This paper proposes the use of a video event detection method based on spatiotemporal volumes (STVs) in a fault monitoring application to complement and improve upon existing systems. To detect faults, images are captured using a single camera from several different regions of an assembly machine testbed. The motion is segmented in each image creating binary frames which are stacked to build a STV. Normal operation of the machine is modelled by building a STV from several training sequences. New STVs are compared to the model and classified as either normal or faulty behaviour based on a calculated similarity measure. Test results show that the system is very effective on the data sets collected.

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Section: Related Workmentioning

confidence: 99%

Video event detection for fault monitoring in assembly automation

Hughes

Fernando

Szkilnyk

et al. 2014

IJISTA

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“…This may have profound implications on a number of scenarios, e.g. remote maintenance as depicted by [21].…”

Section: Ws-driven Device Integrationmentioning

confidence: 99%

Realising next-generation web service-driven industrial systems

Karnouskos¹

2011

Int J Adv Manuf Technol

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Business continuity and agility form the core modus operandi of modern global enterprises. Complex business processes performed in highly distributed production systems need to be efficiently integrated with the shop floor, which needs to be able to fully respond to dynamic adaptations and sophisticated interactions with the enterprise systems in a timely manner. As the new generation of industrial devices coming to the shop floors features greatly improved storage, computing and networking capabilities, the factory of the future transforms itself to a system of systems, where of large numbers of heterogeneous networked embedded devices dynamically exchange information, complement each other's functionality and provide new innovative capabilities that satisfy the emergent dynamic business requirements. This new breed of networked embedded devices goes beyond simple passive roles, e.g. being able to store and report information about themselves and their physical surroundings once queried, but execute complex computations and global logic locally, as well as dynamically adapt to fulfil goaldriven conditions. They communicate in an open interoperable way, form cooperative peer-to-peer networks and strongly interact with enterprise systems. This leads to highly modular, manageable and dynamic factories that will be able to adapt and optimize their behaviour to achieve the business goals pursued in a cross-layer collaborative way.

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“…Given the nature of infographics using ladder diagrams to visually represent programmable logics, it is important to ensure that complex information can be communicated in the form of data packets efficiently [10,11], and real-time data and events which change over time should also be reflected timely, taking into account human cognitive abilities and visual responses [12][13][14].To improve monitoring effectiveness and communication efficiency between supervisory monitoring computers and remote PLCs, a spectrum of academic research and industry practice have been conducted in recent years, which involve system and architecture design for PLC-based system applications, advanced control, and optimization.Among PLC-based system applications, a novel online diagnosis system framework was proposed for a distributed control system with expert decision support [4]. Three different remote diagnosis architectures were tested for a PLC-based automated assembly system by incorporating advancements such as automated fault diagnosis, collaborative diagnosis, and mobile communication techniques [5]. A cost-effective development environment was proposed for monitoring and data acquisition of PLC controlled applications [9].…”

mentioning

confidence: 99%

“…Among PLC-based system applications, a novel online diagnosis system framework was proposed for a distributed control system with expert decision support [4]. Three different remote diagnosis architectures were tested for a PLC-based automated assembly system by incorporating advancements such as automated fault diagnosis, collaborative diagnosis, and mobile communication techniques [5]. A cost-effective development environment was proposed for monitoring and data acquisition of PLC controlled applications [9].…”

mentioning

confidence: 99%

Dynamic Optimization of Data Packet-based Communication for PLC Visual Monitoring

Yang

Chen

et al. 2019

Applied Sciences

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This paper presents a dynamic optimization solution for the data packet-based communication of programmable logic controller (PLC) visual monitoring, and the objective is to improve the communication efficiency between a supervisory computer and field PLCs in consideration of the network communication performance, such as network bandwidth, packet loss or retransmission rate, and human response delay. A nonlinear optimization model with constraints is formulated and solved analytically to obtain the minimized transmission time. Experimental results demonstrate that the proposed dynamic optimization can solve the practical industry problem in an efficient and effective manner, and it can provide useful guidance for the data packet-based communication setting of networked control systems.

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Remote diagnosis design for a PLC-based automated system: 1-implementation of three levels of architectures

Cited by 15 publications

References 25 publications

Video event detection for fault monitoring in assembly automation

Video event detection for fault monitoring in assembly automation

Realising next-generation web service-driven industrial systems

Dynamic Optimization of Data Packet-based Communication for PLC Visual Monitoring

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