发明名称 |
Event-logging system |
摘要 |
A solid-state event-logging system records the occurrence of specified events in a removable, solid-state, memory cartridge. Counters continuously count pulses produced by a plurality of electrical energy measuring devices. Sample values of the continuous counts are produced and input to a microprocessor wherein each sample value has the previous sample value subtracted therefrom. The difference is added to an interval sum stored in a random access memory. The interval sums, together with real time information produced by a clock, are input to the memory cartridge according to a predetermined format. The clock is maintained in synchronization with the frequency of the line voltage by the microprocessor.
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申请公布号 |
US4400783(A) |
申请公布日期 |
1983.08.23 |
申请号 |
US19800184458 |
申请日期 |
1980.09.05 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
LOCKE, JR., PHILIP F.;MAXWELL, JR., ALBERT H. |
分类号 |
H02J13/00;G06F17/40;G06K19/00;(IPC1-7):G11C11/00;G06F15/20 |
主分类号 |
H02J13/00 |
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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