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Invention Grant
CN104714853B 使用COTS组件的容错故障安全计算机系统 有权

使用COTS组件的容错故障安全计算机系统
Abstract:
本申请公开使用COTS组件的容错故障安全计算机系统。该系统包括安全相关组件，该安全相关组件响应于接收执行任务的请求生成数据分组并且传递数据分组。该系统进一步包括第一故障安全底架（FSC），该第一故障安全底架连续地生成第一底架健康信号，确定数据分组是否有效，并且基于该确定选择性地确定是否使第一底架健康信号失效。该系统还包括第二FSC，该第二FSC连续地生成第二底架健康信号，确定数据分组的复本是否有效，并且基于该确定选择性地确定是否使第二底架健康信号失效。该系统进一步包括安全继电器箱模块，该安全继电器箱模块基于第一底架健康信号和第二底架健康信号确定是否指示第一FSC在预确定的模式下操作。
Abstract(English):

A system includes a safety relevant component that generates a data packet in response to receiving a request to perform a task and that communicates the data packet. The system further includes a first fail-safe chassis (FSC) that continuously generates a first chassis health signal, that determines whether the data packet is valid, and that selectively determines whether to de-assert the first chassis health signal based on the determination. The system also includes a second FSC that continuously generates a second chassis health signal, that determines whether a copy of the data packet is valid, and that selectively determines whether to de-assert the second chassis health signal based on the determination. The system further includes a safety relay box module that determines whether to instruct the first FSC to operate in a predetermined mode based on the first chassis health signal and the second chassis health signal.

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