Manufacturing architecture for integrated systems (original) (raw)
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SSRN Electronic Journal, 2000
An approach to design of a large-scale distributed system intended for factory automation is described for a case study of Computer Integrated Manufacturing and Management systems (CIMMs). Some aspects of the two basic approaches to design of CIMMs (by-organisation and by-thinking) are compared. The paper presents some experience in design and development largescale systems and the current state of art for the domain. A feasible approach (by-thinking) is proposed for that distributed system, based on prospective user expectations and the system development with use of so called first thread on which the standards facilitating development of subsequent systems should be developed and people acquainted with both manufacturing and management problems should be educated. There is also depicted some modelling and analysis work intended for facilitating design and implementation of future CIMMs, being a good example of complex computer systems.
Manufacturing execution systems for customized production
Journal of Materials Processing Technology, 2006
Mass customised manufacturing is a current tendency in many production sectors. In this scenario, the client details the desired product often using informatics means and respecting available options. This customisation context imposes systemic integration and co-operations between the concerned manufacturing entities to explore their capabilities, aiming at adaptability to the product heterogeneity. An integration element of the management system and systems related to the shop floor is the manufacturing execution system (MES). A conceivable way to allow MES supporting this customised e-manufacturing is the concept of smart-product, where each product "drives " its own production, allowing a decoupling between production and order dispatching, as well as the consistency between physical and informational flows. A smart-product requests services from manufacturing resources and it can compete for them. These resources must co-operate based on their features and based on some established flexible co-operation logic, aiming to carry out smart-products requests. However, this is by itself another issue, firstly due to the heterogeneity of factory resources. Looking for homogenisation and integration of this diversity, resources and also smart-products may be "encapsulated" inside of communicating entities called "holons ". However, the composition of holonic MES (H-MES) is not trivial, because of the dynamic between all holons may be complex. Previous studies presented the organisation of resource-HLs co-operation carried out by computational entities called "rules". In this paper, it is proposed a conceptual solution of a meta-model for rules-oriented and product-driven H-MES and its application for the holonification of a design and simulation tool.
The design of computer-integrated manufacturing systems
International Journal of Production Economics, 1994
Computer-integrated manufacturing (CIM) offers a number of useful and potential opportunities for improving the system performance of the manufacturing firm. However, it has been reported that there is always difficulty while implementing CIM due to lack of integration between various functional areas of manufacturing such as sales, research and development, design and engineering, production planning and control, distribution in terms of both material and information flows. This may be due to the design problems of CIM. Realizing the importance of CIM both from the investment and operational efficiency points of view, an attempt has been made in this paper to investigate and design and implementation issues of CIM. The purpose of this paper is to: (if review the design and implementation approaches from a strategic point of view, (ii) identify the gap between theory and practibe in the design and implementation approaches of CIM, (iii) suggest a suitable framework for the design and implementation of CIM with a view to improve productivity and quality and (iv) suggest future research directions in the development of CIM.
A new system architecture compared with conventional production system architectures
International Journal of Production Research, 2000
A new concept of manufacturing system architecture is proposed in order to improve the reaction of the ® rms to the growing requests of productivity and exibility of the market of metal components for the automotive industry. The new system architecture allows ® rms to produce, in a pro® table way, a mix of diOE erent families of parts required in medium± large volumes. This paper proposes a description of the system architecture pointing out its advantages and drawbacks in terms of productivity and¯exibility. In addition the proposed system architecture is compared with rigid transfer lines and parallel machines¯exible manufacturing systems on the basis of discounted cash¯ow indicators. Rigid and exible systems are compared taking as a reference a real case. The in¯uence of the variability of products and volumes on the pro® tability of the diOE erent system architectures is also investigated in this paper.
A Concept of Factory Automation
1975
Absfracf-Currentlv. many manufacturing functions are automated through the use of computers and associated equipment. The support of ,administrative functions such as material and labor control to regulate costs and measure results is aided by the use of medium to large computers at the plant site or through communications to a central computer site. The control of processes, such as testing and assembly,. are improved through the use of mini-and microprocessors'as well as programmable controllers. The engineering problem solving and design now involve the use of hand-held and desktop calculators as well as time-shared and remote processing on a central computer. All of these things have but one basic goal: cost effective manufacturing.
MCSARCH: An architecture for the development of manufacturing control systems
International Journal of Production Economics, 1999
Various classes of computerised manufacturing control system (MCS) have emerged during recent decades. Potentially they have the capability to help coordinate and control product realising operations, by imposing the use of suitable business rules and organisational constraints. Therefore their use can improve the e$ciency and e!ectiveness with which a company deploys its valuable resources. To date however that potential has been far from being realised. This paper explains that this situation can, to a signi"cant degree, be attributed to unsatisfactory characteristic properties of contemporary classes of MCS, where these properties are inherited directly from the way in which such systems are designed and implemented. Indeed contemporary approaches to MCS design and construction are geared to producing essentially one-o! systems. As a result they make limited use of modern system design methods and concepts and do not promote the reuse of standards and component building blocks. Invariably custom MCS design and build leads to very high cost systems and long installation lead-times [M.I.
Performance Modelling of a Computer Integrated Manufacturing and Management System
SNE Simulation Notes Europe
This paper presents a predicted target architecture of an integrated manufacturing and management system, based on a metropolitan-type infranet and an industrial process control and monitoring network. Such systems are severely required by prospective users, especially large-scale manufacturing enterprises. Nevertheless, neither big manufacturers of computer integrated manufacturing systems nor big manufacturers of computer integrated systems are apt to develop combined computer integrated manufacturing and management systems. Considering that, a team of volunteer design and research workers initiated some work oriented toward facilitating future development of such combined systems. Since the combined systems will be novel ones, prior results of research work conducted for the manufacturing systems or the management systems separately will not be valid, since the actual requirements will have to cover the needs of both manufacturing and managerial applications. This refers to, among other things, to performance evaluation. To evaluate performance, a method developed for packet switching networks with end-to-end acknowledgement was applied. The network is modelled as a set of closed routes consisting of a user and a series of service stations (communication links, switches, host processes). The paper describes the investigations carried out for the case study. Some consideration is given to the performance evaluation accuracy, basing on the validation work results obtained from analytical work, simulation and measurements on the Polish pilot wide area network.
Information Systems Support for Manufacturing Processes
Manufacturing Execution Systems and Enterprise Resource Planning Systems support the Manufacturing Enterprise. The two families of systems have been developed independently, so they have grown without a scope or a strictly defined border. The feature overlapping between them raises relevant issues in the integration with control systems. This paper analyzes how different types of manufacturing processes are supported by ERP and MES, and how the standard developed by ISA: S95 defines the scope of each system. This standard also provides the separation of production from non-production processes. A paper mill enterprise case study is presented, where the business processes are identified and a system framework is proposed in accordance with the S95 hierarchy function model.