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실시간 운영체제 환경하에서 이중화된 제어시스템을 위한 소프트웨어의 구현
박세화(S.-H. Park),황동환(D.-H. Hwang),이재혁(J.H. Lee),김병국(B.K. Kim),변증남(Z. Bien),문봉채(B.C. Moon),김은기(E.K. Kim) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
In this paper, a method for implementing software for the control system with dual structure in processor module is proposed and implemented to enhance its reliability. In this implementation the multi-tasking function which is provided by a real-time operating system is applied. The overall software is divided into five tasks and is performed in each of the dual processor module, independently. By this, the processor module with dual structure can achieve a control objective and fault diagnostics effectively. An experimental result shows that the backup processor module can be substituted for the primary processor module immediately when it happens to fail, because data relating the failure information are exchanged continuously done via shared memories.