From: "Bruce Cohen;;50-662;LP=A;" Subject: Re: NASA technology choices Date: 4 Mar 91 18:00:40 GMT Organization: Tektronix Inc. In article <17372@milton.u.washington.edu> szabo@sequent.com (Nick Szabo) writes: > > Does operator fatigue cost even a significant fraction of the space station > astronaut time required for on-site teleoperation? It certainly might if it increased the incidence of accidents caused by operator error due to fatigue. I suspect that shifts would have to be very short to prevent the level of fatigue which can cause those kinds of slip. The problem is that when using very "laggy" control systems the operator is kept at a high mental tension / concentration level, with a high level of muscular tension as well, constantly overcontrolling muscles so as not to oversteer the controlled system. I'm not saying that this is an overriding reason to use the more expensive system, just that it's not as trivial objection as it looks at first blush. -- ------------------------------------------------------------------------ Speaker-to-managers, aka Bruce Cohen, Computer Research Lab email: brucec@tekchips.labs.tek.com Tektronix Laboratories, Tektronix, Inc. phone: (503)627-5241 M/S 50-662, P.O. Box 500, Beaverton, OR 97077