Jacqueline Humphries, Pepijn Van de Ven, Nehal Amer, Nitin Nandeshwar and Alan Ryan
Maintaining the safety of the human is a major concern in factories where humans co-exist with robots and other physical tools. Typically, the area around the robots is monitored…
Abstract
Purpose
Maintaining the safety of the human is a major concern in factories where humans co-exist with robots and other physical tools. Typically, the area around the robots is monitored using lasers. However, lasers cannot distinguish between human and non-human objects in the robot’s path. Stopping or slowing down the robot when non-human objects approach is unproductive. This research contribution addresses that inefficiency by showing how computer-vision techniques can be used instead of lasers which improve up-time of the robot.
Design/methodology/approach
A computer-vision safety system is presented. Image segmentation, 3D point clouds, face recognition, hand gesture recognition, speed and trajectory tracking and a digital twin are used. Using speed and separation, the robot’s speed is controlled based on the nearest location of humans accurate to their body shape. The computer-vision safety system is compared to a traditional laser measure. The system is evaluated in a controlled test, and in the field.
Findings
Computer-vision and lasers are shown to be equivalent by a measure of relationship and measure of agreement. R2 is given as 0.999983. The two methods are systematically producing similar results, as the bias is close to zero, at 0.060 mm. Using Bland–Altman analysis, 95% of the differences lie within the limits of maximum acceptable differences.
Originality/value
In this paper an original model for future computer-vision safety systems is described which is equivalent to existing laser systems, identifies and adapts to particular humans and reduces the need to slow and stop systems thereby improving efficiency. The implication is that computer-vision can be used to substitute lasers and permit adaptive robotic control in human–robot collaboration systems.
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Anna Trubetskaya, Alan Ryan and Frank Murphy
This paper aims to introduce a model using a digital twin concept in a cold heading manufacturing and develop a digital visual management (VM) system using Lean overall equipment…
Abstract
Purpose
This paper aims to introduce a model using a digital twin concept in a cold heading manufacturing and develop a digital visual management (VM) system using Lean overall equipment effectiveness (OEE) tool to enhance the process performance and establish Fourth Industrial Revolution (I4.0) platform in small and medium enterprises (SMEs).
Design/methodology/approach
This work utilised plan, do, check, act Lean methodology to create a digital twin of each machine in a smart manufacturing facility by taking the Lean tool OEE and digitally transforming it in the context of I4.0. To demonstrate the effectiveness of process digitisation, a case study was carried out at a manufacturing department to provide the data to the model and later validate synergy between Lean and I4.0 platform.
Findings
The OEE parameter can be increased by 10% using a proposed digital twin model with the introduction of a Level 0 into VM platform to clearly define the purpose of each data point gathered further replicate in projects across the value stream.
Research limitations/implications
The findings suggest that researchers should look beyond conversion of stored data into visualisations and predictive analytics to improve the model connectivity. The development of strong big data analytics capabilities in SMEs can be achieved by shortening the time between data gathering and impact on the model performance.
Originality/value
The novelty of this study is the application of OEE Lean tool in the smart manufacturing sector to allow SME organisations to introduce digitalisation on the back of structured and streamlined principles with well-defined end goals to reach the optimal OEE.
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Anna Trubetskaya, Alan Ryan, Daryl John Powell and Connor Moore
Output from the Irish Dairy Industry has grown rapidly since the abolition of quotas in 2015, with processors investing heavily in capacity expansion to deal with the extra milk…
Abstract
Purpose
Output from the Irish Dairy Industry has grown rapidly since the abolition of quotas in 2015, with processors investing heavily in capacity expansion to deal with the extra milk volumes. Further capacity gains may be achieved by extending the processing season into the winter, a key enabler for which being the reduction of duration of the winter maintenance overhaul period. This paper aims to investigate if Lean Six Sigma tools and techniques can be used to enhance operational maintenance performance, thereby releasing additional processing capacity.
Design/methodology/approach
Combining the Six-Sigma Define, Measure, Analyse, Improve, Control (DMAIC) methodology and the structured approach of Turnaround Maintenance (TAM) widely used in process industries creates a novel hybrid model that promises substantial improvement in maintenance overhaul execution. This paper presents a case study applying the DMAIC/TAM model to Ireland’s largest dairy processing site to optimise the annual maintenance shutdown. The objective was to deliver a 30% reduction in the duration of the overhaul, enabling an extension of the processing season.
Findings
Application of the DMAIC/TAM hybrid resulted in process enhancements, employee engagement and a clear roadmap for the operations team. Project goals were delivered, and original objectives exceeded, resulting in €8.9m additional value to the business and a reduction of 36% in the duration of the overhaul.
Practical implications
The results demonstrate that the model provides a structure that promotes systematic working and a continuous improvement focus that can have substantial benefits for wider industry. Opportunities for further model refinement were identified and will enhance performance in subsequent overhauls.
Originality/value
To the best of the authors’ knowledge, this is the first time that the structure and tools of DMAIC and TAM have been combined into a hybrid methodology and applied in an Irish industrial setting.
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The Internet features more and more frequently in the media as the impact of the information society grows and the traffic on the information highway expands. In this article the…
Abstract
The Internet features more and more frequently in the media as the impact of the information society grows and the traffic on the information highway expands. In this article the authors explore the ways in which the Internet is affecting the field of records management. They describe the Internet, the three methods of connecting to the Net and discuss the growth of e‐mail with particular reference to its status and retention. The Internet also provides, via list servers, a forum for exchange of information amongst records managers and the most active lists are identified with their addresses given in an Appendix. The authors conclude by arguing that, although, at the present time, the idea of managing or controlling the Net runs counter to the freedom of expression which is its principal characteristic, in time the records manager will take on a greater role in preparing users to use the NET by good record‐keeping practices within business as well as encouraging fellow professionals to tap into a valuable resource for their own professional development.
STEPHEN BAILEY, ALAN MURDOCK and DAVID RYAN
In this article the authors explain how a new system has been designed to work in conjunction with existing databases to ensure a consistency of approach to retention scheduling…
Abstract
In this article the authors explain how a new system has been designed to work in conjunction with existing databases to ensure a consistency of approach to retention scheduling across a variety of media and formats. The system allows for the whole life‐cycle of a record to be pre‐defined at both record series and file level. The reports produced by the system enhance a retention schedule programme that not only meets the needs of the records manager, but also serves as a ‘user‐friendly’ point of contact between himself and the users he serves. The authors will briefly explain the existing approach taken to retention scheduling at Pfizer Central Research, Sandwich and will demonstrate how this new ‘Electronic Retention Schedule’ (ERS) will enhance the current system of publishing advisory ‘guidelines’ for users and implementing ‘annual reviews’ of record holdings held in a number of different storage formats.
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Abstract
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Books include novels, dictionaries, telephone books, textbooks, anthologies, instruction manuals, proceedings of meetings and directories. The phrase “electronic books” has been…
Abstract
Books include novels, dictionaries, telephone books, textbooks, anthologies, instruction manuals, proceedings of meetings and directories. The phrase “electronic books” has been applied to some types of CD‐ROM systems, palm‐top CD players, on‐demand text, electronic document systems of various kinds ± in fact to almost any kind of computer‐based text system that needs hyping up for marketing purposes. The future prospects for the electronic book are examined in this article.