Developing a Voice-Controlled, Computer-Generated Display to Assist Space Station Astronauts during Maintenance Activity

摘要

This thesis illustrated a planning strategy for a voice-controlled, computer-generated maintenance display which would be used by astronauts when completing maintenance activity outside the proposed U.S. space station. After justifying the usefulness of a proposed systems engineering approach, five main objectives were provided: 1) the vertical stanchion of the Manipulator Foot Restraint would provide an adequate base for the display so it could be moved to and from the worksite; 2) liquid crystal display technology should be used; 3) for voice-controlled operations, the best type of recognition unit to use would be one where the unit understands only one speaker at a time and only one word at a time; 4) experimental data suggest that a hierarchical scheme should be used for the menu format; 5) use of text, audio, graphics, and color for the proposed display. Only text and graphics were recommended for use. A proposed display format was presented showing the placement of the menu, text and graphics using some known data about how the human brain processes information. (Theses).