发明名称 |
Digital control system monitor having a predetermined output under fault conditions |
摘要 |
An electrical control system monitor includes a microprocessor which conducts a series of control and test functions and outputs a sequence of data words which are representative of the operating status of the system being monitored and the monitor itself. This sequence of data words is fed to a comparator along with a second sequence of data words. Corresponding data words from the two sequences are presented to the comparator during successive partially overlapping time intervals. The comparator produces a given logic level output when its inputs agree and a second given logic level output when its inputs disagree. If the comparator output does not oscillate in a prescribed manner, the output of the monitor is forced into a predetermined output state.
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申请公布号 |
US4477870(A) |
申请公布日期 |
1984.10.16 |
申请号 |
US19820382436 |
申请日期 |
1982.05.26 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
KRAUS, MARK G. |
分类号 |
G05B9/02;G05B23/02;G06F11/30;G08B29/16;(IPC1-7):G06F11/00 |
主分类号 |
G05B9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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