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Modern manufacturing systems require fast and effective adaptation to fluctuating market conditions and product diversification. This high level adaptability can be achieved through the utilization of Reconfigurable Manufacturing Systems (RMS), which should be based on modular equipment that is easily integrated, scalable, convertible in terms of functionality, and self diagnosable. RMS also necessitate...
Computer Numeric Control (CNC) machine has been widely used in the industries since its development, this technology had made a strong impact in the growth of the manufacturing world. Today in industries this technology has been used for various operations like milling, drilling, packing, welding etc. However, the rapid growth in the manufacturing world increases the demand of more flexibility in...
This paper proposes a hierarchical Software-Defined Networking (SDN) Multi-Domain Orchestration and Control architectural framework to address complex multi-tier governance domain deployments by Carriers, Service Providers (SP), Cloud Service Providers (CSP), large Enterprises, and Network Functions Virtualization (NFV) Infrastructure/Platform as a Service (NFVIaaS/NFVPaaS) providers. The proposed...
In this paper, an open architecture CNC system is developed for a 5-axes hybrid kinematic machine tool. The architecture of this system consists of Turbo PMAC motion control card and PC. The hardware and software of the system are described respectively. The development of the CNC system using LabVIEW is proved successful. The system can be used in practical applications to meet processing requirements...
Traditional interface closure CNC system makes functional expansion and architecture alteration impossible. It cannot meet the developing demand of modern technology toward openness, flexibility, and intelligence. In this paper, a Multi-agent technology is utilized for open CNC design, the CNC can be regarded as a double-layer structure, the upper layer concludes software modules running tasks without...
The network control of CNC machine is the inexorable development trend of modern manufacturing industry, and the combination of embedded technology with network has become a research hot. This paper puts forward a novel design idea of remote monitoring and controlling system of CNC machine based on embedded Internet, presents its architecture principle design and software-hardware implementation procedure...
The characteristics of real time operating system (RTOS) are analyzed and its advantages in design of embedded computer numerical control system (CNC system) are highlighted, according to comparisons with general operating systems. In this study, RTOS μC/OS - II is introduced in the embedded hardware platform of CNC system based on ARM and Motion Control Chip. Furthermore, the software architecture...
Lower level machines of production line are mainly controlled by PLC and CNC. Reconfiguration control mechanism and implementation of these two kinds controller have its own way due to different characteristics of individual control domain. Combining them totally in one production line manufacturing environment to form reconfigurable control architecture in system level is focused on. First reconfigurable...
Most of motion control cards are built based on parallel bus and served as kernel control units of numerical control systems. Since there is no industrial standard of instruction systems for different motion control cards, each manufacture insists their own instruction sets with no compatibility with those of others. This poor compatibility becomes an obstacle for customers to build their high performance...
Architecture of distributed numerical control (NC) system based on field-bus is discussed in the paper for solving the problems in robustness and openness coming from the current integration-design method of NC system. The basic framework of system, nodding model, expanding structure are proposed in this paper, followed by a case study, so to explore solutions to improve functions and openness of...
In the machining, process parameters need to be monitored and adjusted automatically, which can improve production quality and reduce machining time. At present, it is mainly concentrated on the study of some algorithms about tool wearing and tool breakage, or theory modeling of interrelated models in the processing machining. The monitoring systems independent of CNC are also investigated to realize...
To meet the need of advanced manufacturing technique, an open computer numerical control (CNC) software package for CNC machining is developed. Module library of the software package was of tree structure with a depth of 5. Terminal nodes of the tree were module units with unambiguous functions. Module units which dealt with real-time tasks were developed adopting real-time dynamical linked library...
Nowadays, the functional requirements of embedded systems increase rapidly. CNC systems are also influenced by this trend. In order to solve the growing complexity of CNC systems, open CNC system is considered as a key technology to take on these challenges. Reconfigurable CNC system is an open CNC which allows modifying system software in response to changing market demands or technologies. This...
To improve production rates and the economic benefits, process parameters need to be monitored and adjusted automatically in the machining. At present, it is mainly concentrated on the study of the algorithms about tool wearing and tool breakage, and theory modeling of interrelated models in the processing machining. The monitoring systems independent of CNC are also investigated to realize the status...
We propose a novel methodology for analysing change propagation in software using the domain-level behavioural model of a system. We hypothesize that change propagation analysis is feasible based purely on the information visible and understandable to domain experts, trading some accuracy for productivity. Such a method is independent of formal architectural representations and may be practical for...
Most computer numerical control (CNC) machines used in Thai industry are imported. With regular maintenance, these CNC machines could last up to 10 years. After that, the owners would either purchase a new machine or upgrade the old model; the later process is widely known as ldquoretrofitting.rdquo However, purchasing a new CNC machine is a big financial burden for small-to-medium enterprises (SMEs)...
In a conventional CNC system, communications between the motion controller and the analogue servo driver usually take place in a unidirectional manner, i.e., from the controller to the driver. In order to increase the interoperability level between the motion controller and the driver, Fieldbus is used in this research. The digital servo in a Fieldbus-based system enables applications with all servo...
In this paper, a motion controller for computerized numerical control (CNC) machining is developed in accordance with open modular architecture controllers (OMAC) agreement and industry standards. The motion controller is a software package running on personal computer. It is developed based on modular structure adopting hierarchic organization mode. After analysis of software and hardware structure...
A modular, configurable, interoperable, scalable configuration computer numerical control (CCNC) system is built and implemented that provided a way for rapid customization and development of a new CNC system by combining the advantages from the technology of component. After analyzing the key technologies of the CCNC system, such as object-oriented, component and modularization, the conception of...
A distributed shared I/O solution for CC-NUMA (cache coherent non-uniform memory access) system is introduced. To improve the remote I/O performance, GPDMA (globally parallel direct memory access) technique is introduced, enable I/O device to directly read/write not only the local memory, but also remote distributed shared memory (DSM). Taking advantage of GPDMA, file system is able to use optimized...
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