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CES/IEEE 5th International Power Electronics and Motion Control Conference

作者： Haibing HU, Tianjun Jin,Wenxi YAO, Zhengyu LU, Zhaoming Qian National Key Lab. of Power Electronics, Zhejiang University, Hangzhou, China

A new flexible digital platform based on the fixed-pointing DSP has been developed for power electronic systems integration, whose computational power can be easily expanded by floating-point units(FPU) which are configured by a FPGA. Some lP(Intellectual Property) cores for power electronic applications, coded in VHDL for modularity and portability, have been designed and validated in the digital platform. software modules commonly used in power electronic applications are packaged in C language with fixed-point format for versatility and computation efficiency. All these IP cores and software modules are verified in real-time applications and can be easily integrated into power electronic systems.

关键词： Digital platform IP core software module Power electronic systems integration

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Implementation of draft-angle, mould-machining capabilities in an automated CAD/CAM pipeline

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INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING 2005年第1期18卷 1-14页

作者： Kumaresan, P Wright, PK Univ Calif Berkeley Dept Mech Engn Berkeley Mfg Inst Berkeley CA 94720 USA

This research presents algorithms and software modules that have been developed for automating the machining of mould halves in a computer numerically controlled (CNC) milling machine. The new contribution of this paper is the software that recognizes 'drafted features' and automatically selects appropriate tools from a tool database to generate tool paths and respective G&M codes for machining these features. Another specific new aspect presented in this paper is that the software enables mould designers to provide multiple angle drafts in their designs. The various modules have been successfully integrated within an existing 2.5D CAD/CAM pipeline. Finally, test parts were designed and successfully machined using the NC codes thus generated.

关键词： CAD/CAM computer software machining software module Automation pipeline Numerical controls Machining lines

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The development of a management system for a modulized cooperating robot group

The development of a management system for a modulized coope...

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IEEE International Conference on Mechatronics Automation

作者： Kyousou, Tsukasa Aiyama, Yasumichi Univ Tsukuba Grad Sch Syst & Informat Engn Tsukuba Ibaraki 3058573 Japan

ISBN: (纸本)078039044X

The purpose of this research is to propose and develop a "Robot Group Management Operating System". This treats each robot and workspace as a module, to improve the program development efficiency of the multi robot system. This simplifies the programming of cooperation and enables sharing of the work space. In this paper, the modulation of a robot that composed a robot group was considered. Also, the easiness of programming the modules using the developed system is shown.

关键词： robot system robotic component software module workspace of robots

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IMBA expert™:: Internal dosimetry made simple

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RADIATION PROTECTION DOSIMETRY 2003年第1-4期105卷 421-425页

作者： Birchall, A Puncher, M James, AC Marsh, JW Jarvis, NS Peace, MS Davis, KE King, DJ Natl Radiol Protect Board Didcot OX11 0RQ Oxon England ACJ & Associates Inc Richland WA 99352 USA British Nucl Fuels Plc Seascale CA20 1PG Cumbria England

In 1997, a collaboration between British Nuclear Fuels plc (BNFL), Westlakes Research Institute and NRPB started, with the aim of producing IMBA (Integrated modules for Bioassay Analysis), a suite of software module.,;that implement the new ICRP models for estimation of intakes and doses. This was partly in response to new UK regulations, and partly due to the requirement for a unified approach in estimating intakes and doses from bioassay measurements within the UK. Over the past 5 years, the IMBA modules have been developed further, have gone through extensive quality assurance, and are now used for routine dose assessment by approved dosimetry services throughout the UK. More recently, interest in the IMBA methodology has been shown by the United States Department of Energy (USDOE), and in 2001 an ambitious project to develop a software package (IMBA Expert(TM) USDOE Edition) which would meet the requirements of all of the major USDOE sites began. Interest in IMBA Expert is now being expressed in many other countries. The unit of this paper is to outline the origin and evolution of the IMBA modules (the past) to describe the full capabilities of the current IMBA Expert system (the present) and to indicate possible future directions in terms of capabilities and availability (the future).

关键词： Dosimetry LITAF gene interest Quality assurance software module Research Institutes NRPB Intake U. S. Department of Energy

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Methods of mathematical forecasting of the time of execution of complex sets of jobs in parallel distributed computer systems

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AUTOMATION AND REMOTE CONTROL 2002年第10期63卷 1668-1686页

作者： Enaliev, AM Ignatushchenko, VV Pomazov, EV Sluchanko, EA Russian Acad Sci Trapeznikov Inst Control Sci Moscow Russia

A procedure of mathematical forecasting of the time of executing complex sets of interrelated software modules (tasks and/or their fragments) in parallel distributed computer systems which takes into account the fact that the time of interprocessor data exchange can be commensurable with that of executing a software module was described for the first time. The times of both interprocessor data exchanges and software module executions were regarded as random variables. Both static planning and dynamic task scheduling were studied. A procedure was proposed for determining with regard for high dimensionality of the mathematical models at hand the upper bound of the number of states of the terminating Markov process describing the model that realizes each user-defined set of interrelated tasks.

关键词： Random variable software module jobs TASK SCHEDULING Computer systems Legal Executions interprocessor data exchange Distributed computer systems Markov chain SETTING

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Hardware-software co-implementation of a H.263 video codec

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IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 2000年第1期46卷 191-200页

作者： Jang, SK Kim, SD Lee, J Choi, GY Ra, JB Korea Adv Inst Sci & Technol Dept Elect Engn Yusong Gu Taejon 305701 South Korea Samsung Elect Co Ltd Suwon South Korea

In this paper, an H.263 video codec is implemented by adopting the concept of hardware and software co-design. Each module of the codec is investigated to find which approach between hardware and software is better to achieve real-time processing speed as well as flexibility. The hardware portion includes motion-related engines, such as motion estimation and compensation, and a memory control part. The remaining portion of the H.263 video codec is implemented in software using a RISC processor. This paper also introduces efficient design methods for hardware and software modules. In hardware, an area-efficient architecture for the motion estimator of a multi-resolution block matching algorithm using multiple candidates and spatial correlation in motion vector fields (MRMCS), is suggested to reduce the chip size. software optimization techniques are also explored by using the statistics of transformed coefficients and the minimum sum of absolute difference (SAD) obtained fi-om the motion estimator.

关键词： computer software RISC processors Computer hardware software module video codecs computer programs codecs motion estimation

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Modular simulators match cost and performance criteria

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IEEE COMPUTER APPLICATIONS IN POWER 1996年第2期9卷 36-41页

作者： Kezunovic, M Texas A and M University Test Laboratories International Inc. USA

Digital power system simulators for protective relay testing were introduced as a concept in the late 1970s with the first designs made available in the early 1980s. Since that time, a variety of digital simulator solutions have been implemented and used by utilities, universities, and relay vendors. It is interesting to note that all of the designs had quite different implementation approaches and performance characteristics. This article features a new concept for a modular digital simulator design in which a variety of hardware and software modules have been developed and used to configure different simulator solutions. The author describes how modular digital simulator configurations range from low-cost single-user, to multiuser environments for open-loop testing and real-time application.

关键词： digital simulator loop test simulator real-time application program relay test Modularity Computer hardware software module Relay protection single user performance characteristics

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The SpectrumWare approach to wireless signal processing

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WIRELESS NETWORKS 1996年第1期2卷 1-12页

作者： Tennenhouse, David L. Bose, Vanu G. MIT Comp Sci Lab Telemedia Networks & Syst Grp Cambridge MA 02139 USA

The SpectrumWare project is applying a software oriented approach to wireless communication and distributed signal processing. Advances in processor and analog-to-digital conversion technology have made it possible to implement virtual radios that directly sample wide bands of the RF spectrum and process these samples in application software. The elimination of dedicated hardware introduces tremendous flexibility into a wireless communication system. Our approach goes further than the software implementation of traditional signal processing functions. We use processor and network memory to temporally decouple the sample streams from the software modules so that the bulk of the processing can be realized within virtual time programming environments. Decoupling relaxes the temporal constraints on the processing algorithms and their execution. This paper describes the SpectrumWare concept, our experimental approach, and the implications that this approach has for wireless signal processing algorithms.

关键词： PROCESSOR software module DECOUPLING signal processing software implementation radiofrequency spectra Applications software Wireless communication systems wireless CARRIER SYSTEM processing algorithm

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MEDIATORS IN THE ARCHITECTURE OF FUTURE INFORMATION-SYSTEMS

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COMPUTER 1992年第3期25卷 38-49页

作者： WIEDERHOLD, G STANFORD UNIV DEPT COMP SCISTANFORDCA 94305 USA

For single databases, primary hindrances for end-user access are the volume of data that is becoming available, the lack of abstraction, and the need to understand the representation of the data. When information is combined from multiple databases, the major concern is the mismatch encountered in information representation and structure. Intelligent and active use of information requires a class of software modules that mediate between the workstation applications and the databases. It is shown that mediation simplifies, abstracts, reduces, merges, and explains data. A mediator is a software module that exploits encoded knowledge about certain sets or subsets of data to create information for a higher layer of applications. A model of information processing and information system components is described. The mediator architecture, including mediator interfaces, sharing of mediator modules, distribution of mediators, and triggers for knowledge maintenance, are discussed

关键词： database management systems encoded knowledge end-user access future information systems information processing information representation information system components knowledge based systems knowledge maintenance knowledge representation mediator architecture mediator interfaces mediator modules multiple databases software module software modules user interfaces workstation applications

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CAFE - THE MIT COMPUTER-AIDED FABRICATION ENVIRONMENT

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IEEE TRANSACTIONS ON COMPONENTS HYBRIDS AND MANUFACTURING TECHNOLOGY 1992年第3期15卷 353-360页

作者： MCILRATH, MB TROXEL, DE HEYTENS, ML PENFIELD, P BONING, DS JAYAVANT, R HEWLETT PACKARD CO DIV GRAPH TECHNOLFT COLLINSCO 80525 TEXAS INSTRUMENTS INC CTR SEMICOND PROC & DESIGNDALLASTX 75230

The computer-aided fabrication environment (CAFE) is a software system being developed at MIT for use in the manufacture of integrated circuits. CAFE is intended to be used in all phases of process design, development, planning, and manufacturing of integrated circuit wafers. While still under active development, CAFE presently provides day-to-day support to research and production facilities at MIT with both standard and flexible product lines. CAFE provides a platform for work in several active research areas at MIT, including "technology" (process and device) computer-aided design (TCAD), process modeling, manufacturing quality control, and TCAD tool integration. The CAFE architectural framework supports a wide variety of software modules, including both development tools and on-line applications. The key components of the CAFE architecture are the data model and data base schema, the process flow and wafer representations, the user interface, and the application programming and data base interfaces. All CAFE application modules store and retrieve persistent data through a common data base interface layer. Interface "wrappers" provide seamless, transparent integration of external tools and packages which have their own internal data formats.

关键词： computer-assisted User Interface Device Component data models software systems Manufacturing Facilities process flow MASSACHUSETTS INSTITUTE OF TECHNOLOGY Integrated circuits software module application programming

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