Hence, the mass of each paving robot is about 2400 kg. The fleet of five included with the original seed totals 12,000 kg.
Paving robot computers must serve a number of functions, including autopilot, dish mirror guidance and control, planar mirror guidance and control, executive operating program execution, operational "timesheet" memory for the run in progress, traffic pattern coordination with other robots, neighbor machine avoidance, self-diagnostic routines for simple malfunctions, pattern recognition for slab working area imaging, sensor control and data processing, energy system maintenance, lunar solar ephemeris memory and calculation of solar pointing angles, navigation and drive wheel control, and various routines for recognition and verification of task completion. The computation capacity needed to handle these functions probably is in the range 106-107 bits (about 64 K-512 K bytes). The information necessary to completely describe the machine for purposes of replication is probably about an order of magnitude greater, roughly 107-108 bits.
5C.5 References
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Rowley, J. C.; and Neudecker, J.W.: Melted In-Place Lunar Soil for Construction of Primary Lunar Surface Structures. In Extraterrestrial Materials Processing and Construction, David R. Criswell, ed. Final Report, NSR 09-051-001 Mod. No. 24, Lunar and Planetary Institute, Houston, Texas, 31 January 1980, pp. 215-219. (Also published as NASA CR-158870.)
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Weast, Robert C.: Handbook of Chemistry and Physics. 49th ed. CRC Company, Cleveland, Ohio, 1968.
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