Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Personal digital assistants in space

29.01.2007
Can tiny and ubiquitous devices like Personal Digital Assistants (PDAs) be of use for space applications? The answer is a definite yes. Recent tests have demonstrated current and future uses for PDAs on board the International Space Station.

Current applications

Up until late 2006, PDAs had been used on board the International Space Station (ISS) mainly as personal computing or entertainment platforms. In the near future, PDAs will start being used as integrated components of real applications.

For example, on the space station there is an application called the Inventory Management System (IMS) that is responsible for keeping track of the location of all items stored on board. This application is based on the use of barcode labels. Starting in March 2007, the old barcode reader terminals will be replaced by PDAs. These PDAs will be equipped with a barcode reader and will be connected to the IMS via a wireless network.

A special application, known as the PDA Depressurisation Program (PDP) and conceived by the astronaut Thomas Reiter, has been developed by ESA to compute the ‘egress time’, – the time that is left before having to abandon the ISS in the event of depressurisation.

This application, tested for usability by Reiter during his long duration mission – from July to December 2006 – is currently undergoing qualification by NASA and will become part of the standard set of software packages loaded on each astronaut PDA.

Prototype applications and research areas

PDAs have been investigated as alternative or complementary platforms for some of the applications currently running on the ISS laptops. The idea is to use a PDA in those situations where a laptop might be inconvenient because it is too big or cumbersome.

An example of laptop to PDA conversion, developed by industry using ESA research and development funding, is the porting of the ESA/NASA International Procedure Viewer (IPV) application. In this type of conversion, the critical factor is adapting the laptop based user interface to a new platform where the available screen area is significantly smaller.

Another area of research is the use of the PDA as a voice or speech processing platform. Combined with wireless communication, PDAs could become suitable devices for crew-to-crew communication (VOIP applications) and crew-to-system communication (speech synthesis and speech recognition – an example is shown in the illustration – click the figure to enlarge).

One limitation for applications employing voice sounds for either input or output is the noise that is always present on board the ISS, most of which is generated by the ventilation system. The PDA Depressurisation Program uses speech synthesis to notify the crew members about the time remaining before egress. However, ambient sound is not an issue for this application because, if depressurisation occurs, the ventilation system is automatically switched off as safety measure.

Maurizio Martignano | alfa
Further information:
http://www.esa.int/SPECIALS/Astrolab/SEML9ISMTWE_0.html

More articles from Information Technology:

nachricht Controlling robots with brainwaves and hand gestures
20.06.2018 | Massachusetts Institute of Technology, CSAIL

nachricht Innovative autonomous system for identifying schools of fish
20.06.2018 | IMDEA Networks Institute

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Temperature-controlled fiber-optic light source with liquid core

In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.

Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...

Im Focus: Overdosing on Calcium

Nano crystals impact stem cell fate during bone formation

Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...

Im Focus: AchemAsia 2019 will take place in Shanghai

Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.

Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...

Im Focus: First real-time test of Li-Fi utilization for the industrial Internet of Things

The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.

Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.

Im Focus: Sharp images with flexible fibers

An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.

Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Munich conference on asteroid detection, tracking and defense

13.06.2018 | Event News

2nd International Baltic Earth Conference in Denmark: “The Baltic Sea region in Transition”

08.06.2018 | Event News

ISEKI_Food 2018: Conference with Holistic View of Food Production

05.06.2018 | Event News

 
Latest News

Graphene assembled film shows higher thermal conductivity than graphite film

22.06.2018 | Materials Sciences

Fast rising bedrock below West Antarctica reveals an extremely fluid Earth mantle

22.06.2018 | Earth Sciences

Zebrafish's near 360 degree UV-vision knocks stripes off Google Street View

22.06.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>