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Technical Paper

Continued Research in EVA, Navigation, Networking and Communication Systems

2008-06-29
2008-01-2029
This paper summarizes the results of our continued testing of a radio based, non-Global Positioning System (GPS) navigation and communications system. The system has been integrated with two mobile computers, a robot and four work stations. It demonstrated crewmember interfaces for acquiring, storing and transmitting data from a space suit life support system simulation, test subject Electrocardiogram (ECG) and other biomedical data. This is an extension of the functions which were tested last year during the NASA Desert Research and Technology Studies (RATS) 2006 activities at both Johnson Space Center in Houston Texas and at Meteor Crater near Flagstaff Arizona. We added considerable complexity to the tests. The tests were conducted on an accurate series of geo-referenced paths at the El Toro Marine Air Station, a closed air field.
Technical Paper

Evolutionary Adaptive Robotic Systems to Support Lunar Exploration

2006-07-17
2006-01-2020
This paper is based on preliminary results of a joint study performed by MDA and Hamilton Sundstrand which examines evolving adaptive robotics systems through early robotic and human missions to the moon. NASA has placed increased emphasis on the role of robotics in future lunar exploration. The recent NASA Exploration System Architecture Study (ESAS) outlines a strategy for human return to the moon that begins with robotic precursor missions, and is followed by a series of short sortie missions made by human-robotic teams. Robotic systems would be better utilized if they can evolve to support multiple stages of the lunar exploration strategy, rather than being designed for “single-shot” mission. For example, pre-cursor rovers could be upgraded to support a human-robot sortie team, and later could remain after the astronauts depart to complete and continue exploration tasks, possibly in co-operation with other robotic assets transported on the Lunar Surface Access Module.
Technical Paper

A Comparison of Pressure Suit Systems Architectures for the Space Exploration Enterprise

2006-07-17
2006-01-2135
The space exploration enterprise that will lead to human exploration on Mars requires pressure suit system capabilities and characteristics that change significantly over time and between different missions and mission phases. These capabilities must be provided within tight budget constraints and severely limited launch mass and volume, and at a pace that supports NASA's over-all exploration timeline. As a result, it has not been obvious whether the use of a single pressure suit system (like Apollo) or combinations of multiple pressure suit designs (like Shuttle) will offer the best balance among life cycle cost, risk, and performance. Because the answer to this question is pivotal for the effective development of pressure suit system technologies that will met NASA's needs, ILC and Hamilton Sundstrand engineers have collaborated in an independent study to identify and evaluate the alternatives.
Technical Paper

Toward Human-Robot Interface Standards: Use of Standardization and Intelligent Subsystems for Advancing Human-Robotic Competency in Space Exploration

2006-07-17
2006-01-2019
NASA's plans to implement the Vision for Space Exploration include extensive human-robot cooperation across an enterprise spanning multiple missions, systems, and decades. To make this practical, strong enterprise-level interface standards (data, power, communication, interaction, autonomy, and physical) will be required early in the systems and technology development cycle. Such standards should affect both the engineer and operator roles that humans adopt in their interactions with robots. For the engineer role, standards will result in reduced development lead-times, lower cost, and greater efficiency in deploying such systems. For the operator role, standards will result in common autonomy and interaction modes that reduce operator training, minimize workload, and apply to many different robotic platforms. Reduced quantities of spare hardware could also be a benefit of standardization.
Technical Paper

Development of an Infrared Absorption Transducer to Monitor Partial Pressure of Carbon Dioxide for Space Applications

1993-07-01
932145
An Infrared (IR) carbon dioxide (CO2) transducer has been designed, developed, and produced for space applications. This transducer provides measurement of partial pressure of CO2 in life support applications, including the Extravehicular Mobility Unit (EMU), Space Shuttle Orbiter and Spacehab. The electrochemical sensor presently used for these applications has a slow response time and has reliability concerns due to the electrolyte. The new microprocessor based unit has a fast response time and can be tailored to other space applications.
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