Time-Triggered Message-Triggered Object Modeling of a Distributed Real-Time Control Application for Its Real-Time Simulation

  • Authors:
  • Moon Hae Kim;Jung-Guk Kim;K. H. Kim;Myeong-Soo Lee;Shin-Yeol Park

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • COMPSAC '00 24th International Computer Software and Applications Conference
  • Year:
  • 2000

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Abstract

The time-triggered message-triggered object (TMO) has been devised as the basic component model for high-level distributed real-time programming as well as real-time application system/subsystem design and modeling. One of the strengths of the TMO is its facilitation of multi-phased top-down modeling of real-time distributed computing application systems. TMO-structured models are capable of representing both a real-time control system and its controlled facilities (composed of sensors, actuators, and monitored infrastructure) in a uniform fashion. Also, TMO-structured real-time simulation models can be generated in attractively simple forms and they can be executed to enable examination of not only the logical accuracy of a real-time control system being developed but also the correctness of its timing behavior. A case study of such simulation modeling has been conducted in the context of constructing a real-time simulator of a real-time control system called the safety injection system (SIS), which is a subsystem of a nuclear power plant. In the course of this case study, some tools that support efficient real-time simulation have been developed. The refined modeling steps, the support tools developed, and the cost-effectiveness confirmed in the course of this case study are the main subjects discussed in this paper.