By Clemens Holzmann
ISBN-10: 3834807982
ISBN-13: 9783834807984
The environment is more and more pervaded by way of embedded platforms that are built-in into daily gadgets, built with sensors and actuators, networked between one another and on hand at any time and in any situation. those computationally augmented real-world gadgets has to be provided with context-awareness and want to percentage the perceived context-information to allow them to function extra autonomously. Clemens Holzmann investigates the position of spatial contexts for independent embedded structures, specifically the location, course, and spatial extension of gadgets with recognize to an exterior reference method or different gadgets. the writer offers techniques of spotting, representing, and reasoning approximately qualitative spatial family members and their alterations through the years, in addition to a suitable structure which has prototypically been carried out in a versatile software program framework. His effects express that the proposed recommendations are appropriate for constructing spatially acutely aware functions and that qualitatively abstracted kin can represent an enough foundation for this objective.
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Extra resources for Spatial awareness of autonomous embedded systems
Example text
Several applications have been implemented, as for example the Cooltown museum in which infrared transceivers broadcast URLs to additional information about nearby exhibitions, which is displayed on the PDAs of visitors passing by. In the present thesis, we do not focus on location as a context for service provision, but rather exploit spatial relationships between objects for influencing the application-level behavior. TEA The European Technology for Enabling Awareness (TEA) project (http://www.
It has a similar structure like the contextaware architecture proposed in [Fer03], except for the explicit distinction between the direct (with sensors) and indirect (via communication) way of acquiring spatial contexts as well as the focus on spatial relationships. We have implemented a middleware framework based on this general architecture, which will be presented in Chapter 6. In the following, the layers of the architecture are discussed in more detail. 5: General architecture for spatial awareness.
In addition, the spatial context of an artifact need not correspond to a certain point in time, but may also represent an artifact’s situation over a time period by comprising a time series of spatial contexts. e. with respect to a fixed external frame of reference) vs. e. e. using numerical values) vs. e. e. at a certain point in time) vs. e. e. a snapshot at a certain time) vs. e. 5 An Architecture for Spatial Awareness 23 reference, and on (ii) qualitative spatial relations, which are defined either absolute or relative to another artifact; in Chapter 3, these two types of spatial context will be discussed in detail.