Sunday, October 14, 2007

Augmented reality onboard the ISS?

Enhancing the usability of NASA's remote arm ...

"According to a brief news release from Human Factors and Ergonomics Society, researchers from NASA and Lockheed Martin have successfully tested a software for a robotic extension device that has been shown to dramatically improve astronauts’ ability to perform remote tasks on the International Space Station (ISS).' Their usage of augmented reality has been developed to be used with the Special Purpose Dexterous Manipulator (SPDM), which is scheduled for 2008 and works in conjunction with the current Space Station Remote Manipulator System (SSRMS). And they concluded that their system should be used for space shuttle missions and on the ISS.

... Here is the abstract. "Robotic operations performed in earth orbit face unique challenges. In the case of the Special Purpose Dexterous Manipulator (SPDM), a two-armed robotic device, operations can last multiple orbital days, with dynamic sunlit days and very dark nights. Direct and indirect visibility can be difficult. This project developed and tested the use of augmented reality technology with a ground based trainer to reduce the negative effects of these conditions. Results of the project showed that twelve skilled operators can significantly reduce positioning errors and time to task completion when using augmented reality techniques."

So how did it work? "The results of this experiment indicate that overlays improve performance in maneuvering an ORU in preparation for inserting it into a receptacle. Despite the small number of subjects available to participate, three of the four performance metrics showed statistically significant improvements in pre-positioning accuracy using overlays. Trial completion time results are slightly less clear cut, but variability in performance was reduced for all metrics during trials using overlays."    (Continued via Roland Piquepaille's Technology Trends)    [Usability Resources]

Special Purpose Dexterous Manipulator (SPDM) - Usability, User Interface Design

Special Purpose Dexterous Manipulator (SPDM)


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