A SYSTEMS ANALYSIS THEORY FOR DISPLAYS IN MANUAL CONTROL.
Abstract
A comprehensive theory for displays used in manual control systems is developed in servo analytic terms, and the process is illustrated by a tutorial example. The display-pilot-control-vehicle combination is treated as a multiloop feedback control system, using the notion that display system synthesis is fundamentally a guidance and control problem which involves human psychomotor activity. The elements of the theory comprise: a mission-phase definition; vehicle and environmental description in system-analytic terms; compatible criteria for mission success; mathematical models for the control response of the human operator to displayed quantities (including the dominant effects of display scanning and sampling); derived closed-loop system characteristics which affect display utilization; metrics for pilot workload; and a synthesis procedure for the preferred arrangement of key displays. Control at the compensatory level of pilot adaptation is treated in detail; and suggestions for possible improvements are discussed. A detailed analysis of the manually controlled blind-landing of a jet transport using conventional ILS instruments is given, and preferred instrument panel arrangements are predicted. The results agree well with airline experience. A number of immediate applications for the theory and areas for future research are suggested. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1968
- Accession Number
- AD0675983
Entities
People
- Duane Mcruer
- Dunstan Graham
- Henry R. Jex
- Warren F. Clement