Malfunction-detecting status monitoring system

Details Malfunction-detecting status monitoring system Malfunction-detecting status monitoring system

1985-02-19

1986-09-09

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340521, 340523, 340508, 340506, 340525, 340526, 340527, 34030915, G08B 1900

Patent

active

046111972

ABSTRACT:
A multiple-sensor status monitoring system for monitoring the status of an area while avoiding false alarms and detecting and identifying faulty sensors. The system uses a timer and logic to avoid false alarms by generating an alarm signal only if two sensors give a response within a preselected interval of time. The system employs latching storage elements to keep a record of which of the sensors have made spurious responses, and a visual display to give a trouble warning respecting those sensors.

REFERENCES:
patent: 3599195 (1971-08-01), Boyko
patent: 3675204 (1972-07-01), Miehle
patent: 3801978 (1974-04-01), Gershberg
patent: 3979740 (1976-09-01), Forbat
patent: 4012730 (1977-03-01), Nicholls
patent: 4086574 (1978-04-01), Miyabe
patent: 4195296 (1980-03-01), Galvin
patent: 4296451 (1981-10-01), Wilkinson
patent: 4356476 (1982-10-01), Healey et al.
patent: 4401976 (1983-08-01), Stadelmayr
patent: 4536747 (1985-08-01), Jensen

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