1.
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Environmental Monitoring: The PSA patrols astronaut living quarters
and laboratories and monitors oxygen, nitrogen, carbon dioxide, and
other gas levels. The PSA can also monitor experimental data such as
microgravity levels, temperature, and atmospheric pressure.
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2.
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Communications: The PSA functions as a remote, mobile data display
terminal for system and experimental data. The PSA has both communication
input and output capabilities, including a microphone, speakers, camera,
and flat display panel. These features allow for video and audio conferencing,
as well as a wireless relay to link to hardwired communication systems.
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3.
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Remote Operations Support: Ground Controllers are able to communicate
with the PSA and maneuver the device into the desired location. Once
in position, the PSA will, for example, use its on board sensors to
monitor the status of experimental lab animals in holding bays or provide
the Ground Controllers with remote views of mission operations.
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4.
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Crew Worksite Support: The PSA provides astronauts work site access
to such information as vehicle status and health data, mission schedule,
inventory tracking, location information, and just-in-time-training
support. The PSA also has the ability to provide notification updates
and alarms related to system events, payload events, or mission experiments
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