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Study and Development of a Selective Monitoring System

Report Number: AMRL TDR 62-144
Author: Morton, George W.
Author: Ligorner, Allen I.
Corporate Author: Aerospace Medical Research Laboratories
Laboratory: Biomedical Laboratory
Date of Publication: 1962-12
Pages: 31
Contract: AF 33(616)-8370
Project: 7222
Task: 722203
AD Number: AD0295589

To reduce the load on data transmitting and processing equipment--and thereby reduce the size and power requirements of such equipment in space vehicles--methods of selecting only the significant portions of data from transducers were investigated, and a six-channel laboratory model of a selective monitoring system was built and tested. Two principles of data selection were studied: (1) selection based on departure of a process variable from the steady state, and (2) excursion of a process variable beyond predetermined limits. Selection data while in the analog state--as taken directly from the transducers--and selection data after conversion to digital code were studied. The laboratory model demonstrates selective monitoring of analog data after conversion to digital code and uses as a selection criterion either departure from the steady state or excursion beyond limits. A program for applying the knowledge gained by the study and the principles demonstrated by the model to space-vehicle equipment is described.

RAF Centre of Aviation Medicine
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