Viewing Analyses for the Assembly of Space Station Freedom (SSF) 921250
Analyses are currently being conducted in the Man-Systems Division of the NASA Johnson Space Center, on the restructured Space Station Freedom configuration to determine viewing requirements for both robotic tasks and for extravehicular crew activities. The use of the PLAID software, a 3-D modeling simulation tool, provides a simulation of the environment and the system hardware to identify potential problem areas needing further refinement in design development. This process enables human factors considerations and issues to be explored during the design process, to identify and correct problems before hardware is actually constructed.
Preliminary results have identified several potential viewing problem areas with the available lighting for both robotic and extravehicular activity (EVA) tasks. To rectify the potential viewing problems identified through simulation, additional cameras and lighting enhancements are being proposed at various sites along the truss and on the Shuttle to provide more complete coverage of work task sites. Supplementing the existing cameras with color coded alignment aids will also help reduce the workload involved with robotic tasks. These additions will provide the means necessary to achieve continuous views of the crew while EVA's are being conducted and enhance the crew's safety.