Microprocessor system for safety-critical control systems
    67.
    发明授权
    Microprocessor system for safety-critical control systems 失效
    用于安全关键控制系统的微处理器系统

    公开(公告)号:US06823251B1

    公开(公告)日:2004-11-23

    申请号:US09403115

    申请日:1999-12-22

    申请人: Bernhard Giers

    发明人: Bernhard Giers

    IPC分类号: G06F700

    摘要: A microprocessor system for safety-critical control operations includes at least three central units which are preferably located jointly on one chip and execute the same program. Further, there is provision of read-only memories and random-access memories with additional memory locations for test data, input and output units and comparators which check the output signals of the central units for correlation. The central units are interconnected by way of bus systems and bypasses which enable the central units to jointly read and process the existing data, including the test data and commands, according to the same program. The central units are extended by redundant periphery units into two complete control signal circuits and are interconnected in such a manner that, upon failure, the faulty central unit is identified by a majority decision and an emergency operation function is maintained.

    摘要翻译: 用于安全关键控制操作的微处理器系统包括至少三个中心单元,其优选地联合在一个芯片上并且执行相同的程序。 此外,提供具有用于测试数据的附加存储器位置的只读存储器和随机存取存储器,输入和输出单元以及比较器,其检查中央单元的输出信号以进行相关。 中央单元通过总线系统和旁路相互连接,使得中央单元能够根据相同的程序共同读取和处理现有数据,包括测试数据和命令。 中央单元由冗余外围单元扩展成两个完整的控制信号电路,并且以这样的方式相互连接,使得在故障时,通过多数决定来识别故障中央单元,并且维护紧急操作功能。