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The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

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

Abstract:
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.


Provenance:
RAF Centre of Aviation Medicine
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