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[1993] Proceedings of the IEEE Workshop on Real-Time Applications

13-14 May 1993

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  • Proceedings of the IEEE Workshop on Real-Time Applications (Cat.No.93TH0559-5)

    Publication Year: 1993
    Request permission for commercial reuse | PDF file iconPDF (39 KB)
    Freely Available from IEEE
  • Putting OO to work: results from applying the object-oriented paradigm during the development of real-time applications

    Publication Year: 1993, Page(s):166 - 170
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    The paper gives an overview of some results and lessons learned from the application of object-oriented (OO) techniques to real-time systems development. These results have been obtained within the scope of a research project which investigates what advantages can be achieved applying OO issues to real-time systems development, and what improvements in the existing OO methods are needed in order t... View full abstract»

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  • Software architecture in realtime systems

    Publication Year: 1993, Page(s):198 - 203
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    Software architecture is receiving attention as engineers search for high leverage representations and tools for system design and analysis. The author's approach to software architecture addresses both system structure and communication behavior from four different views: conceptual, module, code and execution. A system is described within a view using domain-specific components and connectors. C... View full abstract»

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  • A case study of the multi-domain system design capture concept

    Publication Year: 1993, Page(s):171 - 175
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    The principal objective of the system development process is to establish a design which satisfies the system requirements and constraints while optimizing the key trade-offs and issues associated with system functionality, behavior, and implementation. The paper describes a formalism for the design of large, complex, and real-time systems that can be captured and analyzed to better meet the syste... View full abstract»

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  • A look at the current automated capabilities of traceability

    Publication Year: 1993, Page(s):204 - 206
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    The development of large scale, real-time military systems requires the tracing of requirements as mandated by DOD-STD-2167A. In order to comply with this requirement it is necessary to use an automated traceability tool. The paper examines the process and criteria for evaluating traceability tools for use with real-time system developments View full abstract»

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  • Real-time software product development

    Publication Year: 1993, Page(s):176 - 177
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (100 KB)

    The requirements on real-time software development engender a need for modular, reusable components, including, software specifications, designs, and implementations. The author tries to decouple timing constraints for specification and design, and to take special care of timing throughout design View full abstract»

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  • The mapping of an adaptive robot control algorithm onto RM, a reconfigurable machine for highly parallel real-time applications

    Publication Year: 1993, Page(s):104 - 108
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    The paper describes a configuration of the reconfigurable machine (RM) specifically optimized to handle inverse dynamics computation for robot control and to implement a neural network control strategy in a parallel platform. The difficulties of operating on a reconfigurable platform are overcome by defining a fixed processing element (PE) model with multiple processing components and by using the... View full abstract»

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  • Real-time environment modeling

    Publication Year: 1993, Page(s):142 - 146
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Much has been made of recent advances in software development regarding software reusability as a means of making systems easier to develop and maintain and making (as the name implies) it possible to reuse significant portions in other related systems development, further reducing development and maintenance efforts. Real-time systems pose both unusual problems and unique opportunities in this ar... View full abstract»

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  • Towards hard real-time system engineering

    Publication Year: 1993, Page(s):207 - 210
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    One needs to develop (for application) usable models to design dynamic reconfigurable distributed hardware and software systems, supporting permanently available computer resources and hard real-time constraints. In order to develop such a model one needs to look at the development process of an actual application. The specific application exhibiting all the above requirements is a micro satellite... View full abstract»

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  • Applying formal methods to an embedded real-time avionics system

    Publication Year: 1993, Page(s):46 - 49
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    The authors present an application of formal development methodology to an actual real-time embedded system. The formal methods used are based on Modechart a graphical state specification language for real-time systems, whose formal semantic definition provides the basis for analysis. The specifications may be automatically simulated, or verified with respect to user-provided safety, liveness, and... View full abstract»

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  • The design of real-time applications

    Publication Year: 1993, Page(s):178 - 182
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    Complex real-time applications require a disciplined approach at the design stage. Unfortunately, existing design methods are not wholly appropriate for use with real-time applications. Even methods that have been developed specifically for this purpose fail to result in provably correct designs that are easily understood. Seven essential criteria of a suitable design method are given, and one pot... View full abstract»

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  • Real-time considerations in submarine target motion analysis

    Publication Year: 1993, Page(s):122 - 125
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    Submarine command and control has many real-time requirements. The paper describes a demonstration application called the Manual Adaptive Target Motion Analysis Evaluator (MATE) developed at the Naval Undersea Warfare Center. The MATE algorithm uses sensor input in order for human trackers to graphically track submarine contacts. The demonstration system is built using several computer systems sta... View full abstract»

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  • Ada dynamic load control mechanisms for distributed embedded battle management systems

    Publication Year: 1993, Page(s):156 - 160
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    The paper presents dynamic load control constructs that provide Ada with overload detection and load reconfiguration mechanisms. This approach to dynamic resource control allows adaptation of application parameters based on the current load conditions. This capability allows for more complex resource control policies that utilize information about the actual application being performed. A set of e... View full abstract»

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  • Real-time data acquisition in high-energy physics experiments

    Publication Year: 1993, Page(s):112 - 115
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Gives an overview of the field of real-time data acquisition in high-energy physics experiments. It presents the problems encountered in real-time data acquisition and describes current solutions to some of them. It is intended as a tutorial introduction, having the main purpose to educate non-physicists about the challenges met by the designers of computer systems for supercolliders, the largest ... View full abstract»

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  • Software reengineering in a C3I domain

    Publication Year: 1993, Page(s):148 - 152
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    The authors present a strategy for software reengineering of applications in the Command, Control, Communications, and Intelligence (C3I) domain with focus on the inherent real-time response requirements. The reengineering strategy is presented within the context of a typical DoD-STD-2167A software development life cycle. They define a methodology for software reuse, language translatio... View full abstract»

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  • An adaptive noise cancelling system used for beam control at the Stanford Linear Accelerator Center

    Publication Year: 1993, Page(s):212 - 215
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    The SLAC Linear Collider now has a total of twenty-four beam-steering feedback loops used to keep the electron and positron beams on their desired trajectories. Seven of these loops measure and control the same beam as it proceeds down the linac through the arcs to the final focus. Ideally each loop should correct only for disturbances that occur between it and the immediate upstream loop. In fact... View full abstract»

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  • TRACS: a flexible real-time environment for traffic control systems

    Publication Year: 1993, Page(s):50 - 53
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    The authors present a general architecture for a real-time system dedicated to traffic control applications. The proposed system is being developed within the TRACS Esprit III project, and applied to a vessel traffic control application. They focus on the hard real-time aspects of the system, by addressing the design issues of the operating system kernel for achieving predictable and reliable beha... View full abstract»

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  • Network Services Database-a distributed active real-time database (DARTDB) application

    Publication Year: 1993, Page(s):184 - 187
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    A methodical study of real-time database applications can help identify the important research issues in real-time databases. The authors discuss the data and transaction characteristics of a telephone network services database in an attempt to study real-time database issues in the context of an application and to identify new research issues. Network services databases are soft/firm real-time sy... View full abstract»

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  • A real-time software controller for a digital model railroad system

    Publication Year: 1993, Page(s):126 - 130
    Cited by:  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    The paper describes a real-time software controller for a digital model railroad. The Unix real-time primitives of fork, pipe, and signal are used to perform interprocess communication among three concurrently executing tasks, (1) a scanning task, (2) a scheduler and collision avoidance task, and (3) a graphical user interface (GUI) task. The software engineering objective of this real-time system... View full abstract»

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  • On real time network integration in a manufacturing application

    Publication Year: 1993, Page(s):12 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    The authors have been involved in the study and design of alternative architectures for computer numerical controller, CNC, machines. The CNC machines are intended to be finally integrated into a school project which aims at developing a complete flexible manufacturing system. They present the overall architecture of the machine. This is necessary to understand the distinction between the real tim... View full abstract»

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  • On the design of real-time telecommunication systems

    Publication Year: 1993, Page(s):59 - 63
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    The Design, Analysis and Synthesis Environment (DASE) has been developed to aid the designer in exploring the design space of telecommunication systems at the architectural level of design abstraction. DASE utilizes an internal representation called DSL (Design Specification Language) to capture the design intent and simulate, reconfigure and experiment with models using a DSL simulator. These fea... View full abstract»

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  • Real-time issues in the design of the Data Management System for the Space Station Freedom

    Publication Year: 1993, Page(s):161 - 165
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Space Station Freedom (SSF) faces several challenges which are unique in the NASA history of manned and unmanned spacecraft systems. The challenges include a 30 year life, and evolution in capability of the station as a science platform and potentially a transportation node for manned missions to the solar system. The Data Management System (DMS) is a key element of SSF. DMS is the computational i... View full abstract»

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  • Design of embedded hard real-time applications with predictable behaviour

    Publication Year: 1993, Page(s):193 - 197
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    In contrast to most of the other studies which only consider selected topic(s) and typically deal with issues of higher levels of design, the research project outlined uses a holistic approach to real-time application design issues. It is set up in layers starting with a predictably behaving computer hardware architecture, followed by an appropriate programming language and, finally, a tool for au... View full abstract»

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  • Resource scheduling for adaptive systems

    Publication Year: 1993, Page(s):102 - 103
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (92 KB)

    The author discusses the characteristics of the real-time scheduling technology for adaptive applications that have shared physical resources View full abstract»

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  • Temporal properties of the timed d-graphs of distributed processes

    Publication Year: 1993, Page(s):136 - 141
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    Some concepts and tools used to verify the time boundaries of sequential software for hard-real-time applications are based on program control flow and the execution time of instructions or blocks. The paper extends a structural approach from sequential to distributed software. It is conceptually and practically based on timed Concurrent Graphs, TCGs, which extend the concept of sequential program... View full abstract»

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