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Defense Intelligence Reference Document Cognitive Limits On Simultaneous Control Of Multiple Unmanned Spacecraft
Defense Intelligence Agency · 31 pages · text from the file's own layer
This Defense Intelligence Reference Document, dated 15 December 2010, is a Defense Intelligence Agency report from its Advanced Aerospace Weapons System Applications (AAWSA) Program. It looks at how many unmanned spacecraft one human pilot could control during future deep-space missions, drawing on research into air traffic control and piloting of multiple unmanned vehicles. It concludes that the limits are about 16 craft for simple tasks, 7 for moderately complex tasks and 4 for complex mixed fleets. It adds that physiological measures can signal when an operator is overloaded.
“The Times”22 pages
- p. 5 …time was necessary.
The cognitive limitation of a human astronaut and his ability to perform the…
- p. 6 …the fleet could be
economically accomplished if only one remote pilot on station at a time…
- p. 7 …At times
of low demand the operator exerts effort to maintain vigilance (Al) until
demand is…
- p. 8 …The final approach is to record real-time
physiological measures, with the assumption that increased workload…
- p. 9 …time to an event stimulus is a typical real-time measure of speed.
Outside the laboratory…
- p. 10 …Detection of the R-wave allows measurement of frequency, time,d and amplitude. For
continuous monitoring…
- p. 11 …ET data will include position of a
fixation and the time of each eye movement (or…
- p. 12 …The
difficulty lies in measurement time - typical fast assays of salivary cortisol still require
about 15…
- p. 13 …The FAA rebuilt the force to pre-strike levels during the rest of the
1980s. This…
- p. 14 …existed in times immediately after peaks in workload. The second part of the study
examined whether…
- p. 16 …during the
8-hour workday, night time after work. Additionally, controllers completed the State-
Trait Anxiety…
- p. 18 …The authors
conclude that psychophysiological data can be used to accurately measure workload in
real-time…
- p. 19 UNCLASSIFIED/ ,'1"1!11'- l!ll"l"ll!lllile lal!i! i;nn,~r
The more…
- p. 20 …As shown multiple times in the preceding section, single-task processing time and
intensity (difficulty or…
- p. 21 …Time pressure
Time ~
Figure 5. Information Processing Model for a Human Operator. 37
In modeling the…
- p. 22 …of the time, performance decreased due to decreased vigilance in
confirming alarms properly on the ATC…
- p. 23 …Results showed that the autoalert augmentation dramatically decreased the time to
locate system failures, as well…
- p. 25 …the time between the need for attention and the beginning of the next
interaction time is…
- p. 26 UNCLASSIFIED//509 OFFHiIJl1k W81!! 8HLY
interfaces reduces the maximum number of aircraft controllable to seven. 51…
- p. 27 …Whether it is the handwritten blocks for
the ATCs, the stored instructions for the Dixon study…
- p. 28 …We have shown the research progress in both areas, and the cognitive limits
on the number…
- p. 31 …A real-time traffic control scheme of multiple
AGV systems for collision free minimum time motion…
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Skin Measurements
The ANS controls the opening and closing of sweat glands in response to stress and
anxiety. These changes can be observed by measuring electrodermal activity, typically
skin conductance response (SCR), 17 but also skin potentials (SP) and skin temperature
(ST). A standard score of these measures can be calculated by collecting resting state
data prior to the task interval.
Serum Levels of Hormones
Hormone levels are direct results of activity in the ANS. It is natural to want to
continuously monitor certain stress hormones such as adrenaline or cortisol. The
difficulty lies in measurement time - typical fast assays of salivary cortisol still require
about 15 minutes. 18 Until reliable in-situ monitoring is available, serum levels of
hormones will only play a supporting role in establishing baseline capacities or post-
incident analysis.
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About this file
Report, from the dia collection. The PDF is mirrored here; the original link is under it. 31 pages are in the text index: search them above, or from the library's search.