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Peter J. Fleming - One of the best experts on this subject based on the ideXlab platform.

  • A Prototype Development Framework for Hybrid Control System Design
    IFAC Proceedings Volumes, 1996
    Co-Authors: M.s. Hajji, A R Browne, Julian M. Bass, P. Schroder, P.r. Croll, Peter J. Fleming
    Abstract:

    Abstract Hybrid control systems are a combination of real-time control law and discrete-state logic. This paper describes how a Development Framework for control systems software has been adapted so that it may also handle discrete events such as mode switching. The Framework provides a highly automated path from a control engineering specification to a distributed system implementation. Simulink, an extension to Matlab, is used to specify control laws, and a statecharts tool, Statemate, is used to specify and model discrete-state components. The design phase of the Development Framework supports the integration of the two sets of specification. An inverted pendulum control system is introduced as a simple example of a hybrid system implemented using the Framework. The translation of statecharts to dataflow notations is described for the example system. General translation rules are also presented.

  • Software Engineering for Parallel and Distributed Systems - Development Framework for real-time control system design
    Software Engineering for Parallel and Distributed Systems, 1996
    Co-Authors: Julian M. Bass, A R Browne, M.s. Hajji, P.r. Croll, Peter J. Fleming
    Abstract:

    The Development Framework provides a highly automated translation from a specification to a parallel implementation. The specification is in a popular graphical control engineering notation, typically representing a system with stringent dependability requirements and hard real-time constraints. An interface has been constructed between the Development Framework and the dependability modelling tool, SURF-2. The demonstration will illustrate the Development Framework design approach using a primary flight control Case Study. The example application consists of a three channel autopilot and airframe model. Dependability models of competing autopilot architectures will be contrasted in the demonstration.

  • Development Framework approach to heterogeneous system design for control systems
    Control Engineering Practice, 1996
    Co-Authors: M.j. Baxter, A R Browne, M.s. Hajji, Julian M. Bass, P.r. Croll, M. O. Tokhi, Peter J. Fleming
    Abstract:

    Abstract An integrated environment of software Development tools, known as the Development Framework, which automates the design process for complex real-time embedded control systems, is introduced. The approach favoured here is to maximise the use of commercially available tools that are well understood by current industrial practitioners. Where necessary, new tools are introduced both in unifying the automated method and for supporting specialist functions. Introduced here is one such specialist example: support for the design of heterogeneous systems. This paper details the work on heterogeneity, and demonstrates how the essential properties of the Development Framework have been preserved. Thus, the Framework presents a unified methodology and an open system architecture. Finally, what should be learnt from this for building future techniques and tools for complex real-time control systems is discussed.

A R Browne - One of the best experts on this subject based on the ideXlab platform.

  • The Development Framework: work in progress towards a real-time control system design environment
    IEE Colloquium on Advances in Computer-Aided Control System Design (Digest No: 1996 061), 1996
    Co-Authors: J M Bass, A R Browne, P. Schroder, P.r. Croll, P.j. Fleming
    Abstract:

    This paper describes work in progress on two extensions to the environment of a Development Framework for the design of control system software; hybrid system design and design of dependable systems. The Development Framework automatically converts a control engineering specification into a parallel implementation. Hybrid control systems are a combination of real-time control law and discrete-state logic. The Framework can be adapted so that it may handle discrete events such as mode switching. A statechart tool, Statemate [i-Logix95], is used to specify and model discrete-state components. The design phase of the Development Framework supports the integration of the two sets of specification. Initial work to support the design of dependable systems has included the implementation of an interface between the Framework design model and the dependability modelling tool, SURF-2. Stochastic Petri net models of selected fault-tolerant mechanisms are currently supported. The models enable sensitivity analysis and comparison of competing architectures.

  • Software Engineering for Parallel and Distributed Systems - Development Framework for real-time control system design
    Software Engineering for Parallel and Distributed Systems, 1996
    Co-Authors: Julian M. Bass, A R Browne, M.s. Hajji, P.r. Croll, Peter J. Fleming
    Abstract:

    The Development Framework provides a highly automated translation from a specification to a parallel implementation. The specification is in a popular graphical control engineering notation, typically representing a system with stringent dependability requirements and hard real-time constraints. An interface has been constructed between the Development Framework and the dependability modelling tool, SURF-2. The demonstration will illustrate the Development Framework design approach using a primary flight control Case Study. The example application consists of a three channel autopilot and airframe model. Dependability models of competing autopilot architectures will be contrasted in the demonstration.

  • A Prototype Development Framework for Hybrid Control System Design
    IFAC Proceedings Volumes, 1996
    Co-Authors: M.s. Hajji, A R Browne, Julian M. Bass, P. Schroder, P.r. Croll, Peter J. Fleming
    Abstract:

    Abstract Hybrid control systems are a combination of real-time control law and discrete-state logic. This paper describes how a Development Framework for control systems software has been adapted so that it may also handle discrete events such as mode switching. The Framework provides a highly automated path from a control engineering specification to a distributed system implementation. Simulink, an extension to Matlab, is used to specify control laws, and a statecharts tool, Statemate, is used to specify and model discrete-state components. The design phase of the Development Framework supports the integration of the two sets of specification. An inverted pendulum control system is introduced as a simple example of a hybrid system implemented using the Framework. The translation of statecharts to dataflow notations is described for the example system. General translation rules are also presented.

  • Development Framework approach to heterogeneous system design for control systems
    Control Engineering Practice, 1996
    Co-Authors: M.j. Baxter, A R Browne, M.s. Hajji, Julian M. Bass, P.r. Croll, M. O. Tokhi, Peter J. Fleming
    Abstract:

    Abstract An integrated environment of software Development tools, known as the Development Framework, which automates the design process for complex real-time embedded control systems, is introduced. The approach favoured here is to maximise the use of commercially available tools that are well understood by current industrial practitioners. Where necessary, new tools are introduced both in unifying the automated method and for supporting specialist functions. Introduced here is one such specialist example: support for the design of heterogeneous systems. This paper details the work on heterogeneity, and demonstrates how the essential properties of the Development Framework have been preserved. Thus, the Framework presents a unified methodology and an open system architecture. Finally, what should be learnt from this for building future techniques and tools for complex real-time control systems is discussed.

  • FTCS - Dependability modelling in a prototype Development Framework
    Twenty-Fifth International Symposium on Fault-Tolerant Computing. Digest of Papers, 1995
    Co-Authors: J M Bass, A R Browne, Sylvain Metge, Peter R. Croll, P.j. Fleming
    Abstract:

    The Development Framework provides a highly automatic translation from a specification to an implementation. The specification is in a popular, graphical control engineering notation typically representing a system with stringent reliability requirements and hard real time constraints. An interface has been constructed between the Development Framework and the commercially available dependability modelling tool, SURF-2. This tool is designed to support an evaluation based design approach. Multiple design solutions can be compared to assess the implications of design decisions on the dependability of the system under Development. The software demonstration will show how the interface between the Development Framework and SURF-2 is used to model the inclusion of selected fault tolerant mechanisms in the system under Development. >

P.r. Croll - One of the best experts on this subject based on the ideXlab platform.

  • The Development Framework: work in progress towards a real-time control system design environment
    IEE Colloquium on Advances in Computer-Aided Control System Design (Digest No: 1996 061), 1996
    Co-Authors: J M Bass, A R Browne, P. Schroder, P.r. Croll, P.j. Fleming
    Abstract:

    This paper describes work in progress on two extensions to the environment of a Development Framework for the design of control system software; hybrid system design and design of dependable systems. The Development Framework automatically converts a control engineering specification into a parallel implementation. Hybrid control systems are a combination of real-time control law and discrete-state logic. The Framework can be adapted so that it may handle discrete events such as mode switching. A statechart tool, Statemate [i-Logix95], is used to specify and model discrete-state components. The design phase of the Development Framework supports the integration of the two sets of specification. Initial work to support the design of dependable systems has included the implementation of an interface between the Framework design model and the dependability modelling tool, SURF-2. Stochastic Petri net models of selected fault-tolerant mechanisms are currently supported. The models enable sensitivity analysis and comparison of competing architectures.

  • A Prototype Development Framework for Hybrid Control System Design
    IFAC Proceedings Volumes, 1996
    Co-Authors: M.s. Hajji, A R Browne, Julian M. Bass, P. Schroder, P.r. Croll, Peter J. Fleming
    Abstract:

    Abstract Hybrid control systems are a combination of real-time control law and discrete-state logic. This paper describes how a Development Framework for control systems software has been adapted so that it may also handle discrete events such as mode switching. The Framework provides a highly automated path from a control engineering specification to a distributed system implementation. Simulink, an extension to Matlab, is used to specify control laws, and a statecharts tool, Statemate, is used to specify and model discrete-state components. The design phase of the Development Framework supports the integration of the two sets of specification. An inverted pendulum control system is introduced as a simple example of a hybrid system implemented using the Framework. The translation of statecharts to dataflow notations is described for the example system. General translation rules are also presented.

  • Software Engineering for Parallel and Distributed Systems - Development Framework for real-time control system design
    Software Engineering for Parallel and Distributed Systems, 1996
    Co-Authors: Julian M. Bass, A R Browne, M.s. Hajji, P.r. Croll, Peter J. Fleming
    Abstract:

    The Development Framework provides a highly automated translation from a specification to a parallel implementation. The specification is in a popular graphical control engineering notation, typically representing a system with stringent dependability requirements and hard real-time constraints. An interface has been constructed between the Development Framework and the dependability modelling tool, SURF-2. The demonstration will illustrate the Development Framework design approach using a primary flight control Case Study. The example application consists of a three channel autopilot and airframe model. Dependability models of competing autopilot architectures will be contrasted in the demonstration.

  • Development Framework approach to heterogeneous system design for control systems
    Control Engineering Practice, 1996
    Co-Authors: M.j. Baxter, A R Browne, M.s. Hajji, Julian M. Bass, P.r. Croll, M. O. Tokhi, Peter J. Fleming
    Abstract:

    Abstract An integrated environment of software Development tools, known as the Development Framework, which automates the design process for complex real-time embedded control systems, is introduced. The approach favoured here is to maximise the use of commercially available tools that are well understood by current industrial practitioners. Where necessary, new tools are introduced both in unifying the automated method and for supporting specialist functions. Introduced here is one such specialist example: support for the design of heterogeneous systems. This paper details the work on heterogeneity, and demonstrates how the essential properties of the Development Framework have been preserved. Thus, the Framework presents a unified methodology and an open system architecture. Finally, what should be learnt from this for building future techniques and tools for complex real-time control systems is discussed.

N. N Tshipala - One of the best experts on this subject based on the ideXlab platform.

  • A Sustainable Adventure Tourism Development Framework for
    2012
    Co-Authors: Coetzee Wjl, N. N Tshipala
    Abstract:

    Usually adventure tourism activities are based in natural and rugged outdoor locations, and participants interact with their environment. In view of the current growing trend towards adventure-orientated holiday behavior, it is important to identify potential adventure tourism attractions and, help communities to develop and attract the adventure tourism market. This paper proposes a sustainable adventure tourism Development Framework for the ThatheVondo area in Venda, a former so-called “homeland” of South Africa. The research is quantitative in nature and purposive sampling was used at the villages and government departments responsible for tourism and the environment in the ThatheVondo area. This was to get the relevant participants with relevant information. A sustainable adventure tourism Development Framework was proposed towards positioning ThatheVondo in the adventure market, towards developing adventure activities, improving standards of living for the communities, and to enable the area to have an advantage over its competitors while being sustainable.

  • A Sustainable Adventure Tourism Development Framework for Thathevondo
    Journal of Tourism & Hospitality, 2012
    Co-Authors: N. N Tshipala, Coetzee Wjl
    Abstract:

    Usually adventure tourism activities are based in natural and rugged outdoor locations, and participants interact with their environment. In view of the current growing trend towards adventure-orientated holiday behavior, it is important to identify potential adventure tourism attractions and, help communities to develop and attract the adventure tourism market. This paper proposes a sustainable adventure tourism Development Framework for the ThatheVondo area in Venda, a former so-called “homeland” of South Africa. The research is quantitative in nature and purposive sampling was used at the villages and government departments responsible for tourism and the environment in the ThatheVondo area. This was to get the relevant participants with relevant information. A sustainable adventure tourism Development Framework was proposed towards positioning ThatheVondo in the adventure market, towards developing adventure activities, improving standards of living for the communities, and to enable the area to have an advantage over its competitors while being sustainable.

Coetzee Wjl - One of the best experts on this subject based on the ideXlab platform.

  • A Sustainable Adventure Tourism Development Framework for
    2012
    Co-Authors: Coetzee Wjl, N. N Tshipala
    Abstract:

    Usually adventure tourism activities are based in natural and rugged outdoor locations, and participants interact with their environment. In view of the current growing trend towards adventure-orientated holiday behavior, it is important to identify potential adventure tourism attractions and, help communities to develop and attract the adventure tourism market. This paper proposes a sustainable adventure tourism Development Framework for the ThatheVondo area in Venda, a former so-called “homeland” of South Africa. The research is quantitative in nature and purposive sampling was used at the villages and government departments responsible for tourism and the environment in the ThatheVondo area. This was to get the relevant participants with relevant information. A sustainable adventure tourism Development Framework was proposed towards positioning ThatheVondo in the adventure market, towards developing adventure activities, improving standards of living for the communities, and to enable the area to have an advantage over its competitors while being sustainable.

  • A Sustainable Adventure Tourism Development Framework for Thathevondo
    Journal of Tourism & Hospitality, 2012
    Co-Authors: N. N Tshipala, Coetzee Wjl
    Abstract:

    Usually adventure tourism activities are based in natural and rugged outdoor locations, and participants interact with their environment. In view of the current growing trend towards adventure-orientated holiday behavior, it is important to identify potential adventure tourism attractions and, help communities to develop and attract the adventure tourism market. This paper proposes a sustainable adventure tourism Development Framework for the ThatheVondo area in Venda, a former so-called “homeland” of South Africa. The research is quantitative in nature and purposive sampling was used at the villages and government departments responsible for tourism and the environment in the ThatheVondo area. This was to get the relevant participants with relevant information. A sustainable adventure tourism Development Framework was proposed towards positioning ThatheVondo in the adventure market, towards developing adventure activities, improving standards of living for the communities, and to enable the area to have an advantage over its competitors while being sustainable.