Personal digital assistants in space

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.

Media Contact

Maurizio Martignano alfa

Alle Nachrichten aus der Kategorie: Information Technology

Here you can find a summary of innovations in the fields of information and data processing and up-to-date developments on IT equipment and hardware.

This area covers topics such as IT services, IT architectures, IT management and telecommunications.

Zurück zur Startseite

Kommentare (0)

Schreib Kommentar

Neueste Beiträge

Cyanobacteria: Small Candidates …

… as Great Hopes for Medicine and Biotechnology In the coming years, scientists at the Chair of Technical Biochemistry at TU Dresden will work on the genomic investigation of previously…

Do the twist: Making two-dimensional quantum materials using curved surfaces

Scientists at the University of Wisconsin-Madison have discovered a way to control the growth of twisting, microscopic spirals of materials just one atom thick. The continuously twisting stacks of two-dimensional…

Big-hearted corvids

Social life as a driving factor of birds’ generosity. Ravens, crows, magpies and their relatives are known for their exceptional intelligence, which allows them to solve complex problems, use tools…

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close