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Ubiquitous Robotics is a novel paradigm aimed at addressing the coordinated behaviour of robots in environments that are intelligent per se. To this aim, suitable methods to enforce cooperative activities must be assessed. In this article, a formalism to encode spatio-temporal situations whose occurrences must be detected by a contextaware system is introduced. The Situation Definition Language is a tool used to specify relationships among classes of sensory data in distributed systems (such as those adhering to the Ubiquitous Robotics paradigm), without posing any assumption on how data themselves are acquired. The capabilities offered by the language are discussed with respect to a real-world scenario, where a team of mobile robots cooperates with an intelligent environment to perform service tasks. Specifically, the article focuses on the system ability to combine in a centralized representation information originating from distributed sources, either mobile (i.e., the robots) or fixed (i.e., the intelligent devices in the network)., Sveprisutna robotika nova je paradigma namijenjena koordiniranom ponašanju robota u prostorima koji su sami po sebi inteligentni. Radi toga, nužna je procjena primjerenih metoda za provedbu kooperativnih aktivnosti. U ovome se članku predstavlja formalizam za zapisivanje prostorno-vremenskih događaja koji moraju biti detektirani u kontekstno osviještenom sustavu. Situation Definition Language je alat koji se koristi za specifikaciju odnosa među klasama senzorskih podataka u raspodijeljenim sustavima (poput onih koji se pridržavaju paradigme sveprisutne robotike), bez ikakvih pretpostavki nad načinom prikupljanja podataka. Mogućnosti koje jezik nudi analizirane su za stvarne slučajeve, gdje je tim mobilnih robota surađivao s inteligentnim prostorom radi izvođenja uslužnih zadataka. Članak se posebice fokusira na mogućnost sustava da na centraliziran način objedini informacije iz raspodijeljenih izvora, bili oni mobilni (tj. od robota) ili stacionarni (tj. od inteligentnih uređaju na mreži).

This paper introduces ANSER, a mobile robot designed to perform surveillance in wide indoor and outdoor areas, such as civilian airports, warehouses or other facilities. The paper describes in details the robot subsystems, focusing on its capabilities in autonomous surveillance, localization and navigation.

International Computer Music Conference Proceedings: vol. 1991, (dlps) bbp2372.1991.006, http://hdl.handle.net/2027/spo.bbp2372.1991.006, This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. Please contact mpub-help@umich.edu to use this work in a way not covered by the license.