Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1974-12-31
1976-10-26
Caldwell, John W.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340414, 340 52F, 307223R, 328 43, G08B 1900
Patent
active
039887308
ABSTRACT:
Apparatus for monitoring and indicating parameter conditions within a system. Signals are generated by sensors which monitor parameter state. The signals are sensed via a multiplexing scheme, each signal being compared to an individually programmed reference. Should a parameter signal exceed the reference, a corresponding indicator is activated. Each parameter is prioritized such that a parameter signal which exceeds its reference will cause the multiplex network to sequentially sense only that parameter and all other parameters of a higher priority. Further refinements allow the readout of the value of a parameter signal if the parameter exceeds its reference or if such readout is manually selected.
REFERENCES:
patent: 3581066 (1971-05-01), Maure
patent: 3582949 (1971-06-01), Forst
Caldwell John W.
Gillman James W.
Lisa Donald J.
Motorola Inc.
Wannisky William M.
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