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Robotic System On Space Station Improved

Date:
October 15, 2007
Source:
Human Factors and Ergonomics Society
Summary:
Software for a robotic extension of existing NASA technology for remote operations on the International Space Station has been shown to improve astronauts' performance on high-precision tasks. Using graphical overlay information, researchers were able to achieve significant results in efficiency and accuracy. The new technology can be added to existing flight hardware.

Special Purpose Dexterous Manipulator. The new software was developed for use with the Special Purpose Dexterous Manipulator, which works in conjunction with the current Space Station Remote Manipulator System.
Credit: NASA

Software for a robotic extension of existing NASA technology for remote operations on the International Space Station has been shown to improve astronauts' performance on high-precision tasks. Using graphical overlay information, researchers were able to achieve significant results in efficiency and accuracy. The new technology can be added to existing flight hardware.

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Researchers from NASA and Lockheed Martin have successfully tested software the robotic extension device.

James C. Maida, Charles K. Bowen, and John Pace developed the method for use with the Special Purpose Dexterous Manipulator, which works in conjunction with the current Space Station Remote Manipulator System (SSRMS).

Robotic devices on the ISS make it possible for astronauts to perform tasks without leaving the vehicle. Manipulating these devices is challenging, particularly in bright sunlight and deep darkness. Maida and colleagues employed augmented reality techniques to create a graphical informational overlay that can be used in simulations of robotic installation tasks to improve operator performance.

The installation task requires intense concentration by the astronaut to align an external orbital replacement unit (ORU) within inch and degree at its installation point. The task is accomplished by viewing the scene of the installation through a camera and manipulating robotic arms. The researchers used enhanced live video with dynamic overlay information superimposed on features in the operators' field of view to guide them regarding the direction of motion of the robotic arm, the type of motion, and the correct position for installation.

Twelve highly skilled robotics operators were tested on four installation tasks under conditions of dynamic sunlight and very dark nights with and without the overlay. In all cases, accuracy and efficiency improved significantly when using the new overlay system, and all 12 operators found the overlay information extremely helpful in performing the ORU alignment operation. Time to complete the task was also reduced.

The researchers conclude that because the graphics are relatively simple and the computational requirements are low, the overlay system could be implemented on existing flight hardware used on the space shuttle and the ISS.

They presented their research paper, “Improving Robotic Operator Performance Using Augmented Reality,” at the Human Factors and Ergonomics Society 51st Annual Meeting on October 3 in Baltimore, Maryland.


Story Source:

The above story is based on materials provided by Human Factors and Ergonomics Society. Note: Materials may be edited for content and length.


Cite This Page:

Human Factors and Ergonomics Society. "Robotic System On Space Station Improved." ScienceDaily. ScienceDaily, 15 October 2007. <www.sciencedaily.com/releases/2007/10/071012084124.htm>.
Human Factors and Ergonomics Society. (2007, October 15). Robotic System On Space Station Improved. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2007/10/071012084124.htm
Human Factors and Ergonomics Society. "Robotic System On Space Station Improved." ScienceDaily. www.sciencedaily.com/releases/2007/10/071012084124.htm (accessed November 23, 2014).

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