Embedded system design faces the HW/SW-partitioning problem. This is often solved by explicit designer decisions. In this paper we describe a partitioning method based on design specification analysis. Static and dyna...
详细信息
Embedded system design faces the HW/SW-partitioning problem. This is often solved by explicit designer decisions. In this paper we describe a partitioning method based on design specification analysis. Static and dynamic aspects influence the overall time behavior and are examined during two analysis phases. Each phase evaluates a cost function and classifies the suitability of the regarded partition for HW-implementation. Furthermore costs of the HW/SW-interface are taken into account because this overhead may not be neglected. The analysis method is demonstrated by several benchmarks and reasonable results are pointed out. It has also been pointed out that the efficiency of embedded systems is dramatically influenced by the interface between HW- and SW. We developed a pipelined interface using the features of the target architecture. The interface allows handling of multiple HW-components and parameter transfer is quick and flexible.
The use of a time headway (TH) feedback system may decrease the TH adopted by a driver, although these behavioral changes are likely to be a reaction to the system implemented, and not due to the general adoption of i...
详细信息
The use of a time headway (TH) feedback system may decrease the TH adopted by a driver, although these behavioral changes are likely to be a reaction to the system implemented, and not due to the general adoption of increased THs. Installation of a PC-driven microwave radar, for example, may be generally accepted by drivers, but the implications of the likely cost of the system are unclear. Its practical value for reducing adopted THs may be limited in traffic conditions where focused attention occurs or a degree of social pressure is imposed upon the driver. As a learning device, the system may not be particularly effective.
The proceedings contains 7 articles. Topics discussed include the control and commissioning of high precision mechanical systems using advanced digital motion control algorithms, automating a horizontal flow-wrapping ...
详细信息
The proceedings contains 7 articles. Topics discussed include the control and commissioning of high precision mechanical systems using advanced digital motion control algorithms, automating a horizontal flow-wrapping machine, PC control of an automatic flexible assembly operation, manufacturing machinery, the synchronisation of servo drives using fuzzy logic control, IEC 1131-3 programming for motion control and mechatronic approach to the design of a flexible carpet loom.
The proceedings contains 10 articles. Topics discussed include observations on the implementation of simultaneous engineering, the use of gaming techniques to empower teams and case studies of team working in selected...
详细信息
The proceedings contains 10 articles. Topics discussed include observations on the implementation of simultaneous engineering, the use of gaming techniques to empower teams and case studies of team working in selected UK industry, a methodology for product life-cycle development for global manufacturing, extended enterprise partnerships, design for testability, reliability and maintainability, concurrent engineering with suppliers, development of a knowledge platform on concurrent engineering, environments to support concurrent design teams, designers using cooperative knowledge, an agent-oriented framework and concurrent software engineering.
The proceedings contains 11 papers. Topics discussed include controlsystems, system design, time domain methods, system stability, algorithms, state estimation, robustness and system identification.
The proceedings contains 11 papers. Topics discussed include controlsystems, system design, time domain methods, system stability, algorithms, state estimation, robustness and system identification.
A control scheme for the control of an automatic flexible assembly machine is presented. The design of the assembly machine is postulated based on techniques offered by new programmable controllers and has three sub-s...
详细信息
A control scheme for the control of an automatic flexible assembly machine is presented. The design of the assembly machine is postulated based on techniques offered by new programmable controllers and has three sub-systems, two of which are servo driven subsystems. The design is completed through establishment of a number of positions defined as points. These points are formed into trajectories. This design is found to perform and accurately computes according to the design intent, with the trajectory tracking performed accurately for varying speeds. This shows that the ability to produce good motion designs coupled with intelligent motion controllers provides a new opportunity to develop co-operating multi-axis systems especially when used for assembly tasks.
The proceedings contains 10 papers. Topics discussed include product design, customer driven quality, quality function deployment, concurrent engineering, quality management systems and product development.
The proceedings contains 10 papers. Topics discussed include product design, customer driven quality, quality function deployment, concurrent engineering, quality management systems and product development.
In this paper an overview is given of some of the current research activities on robust identification of uncertain systems. This field deals with identification of nominal models, estimation of uncertainty models, an...
详细信息
In this paper an overview is given of some of the current research activities on robust identification of uncertain systems. This field deals with identification of nominal models, estimation of uncertainty models, and validation of uncertainty models for the purpose of robust controldesign. Special attention is given to issues of black-box estimation of uncertainty models.
The paper describes the development and application of an 1 identification method for linear-time invariant single input single output (SISO) systems. Numerical methods applied to produce a reduced order model and an ...
详细信息
The paper describes the development and application of an 1 identification method for linear-time invariant single input single output (SISO) systems. Numerical methods applied to produce a reduced order model and an upper bound upon 1 uncertainty of the approximation are also presented.
暂无评论