Information Technology Reference
In-Depth Information
included. This type of knowledge, e.g. medical, reaches a high degree of complexity
that has not yet been handled efficiently. Model evolution is a further challenge.
Models are not fixed but change over time. They could perhaps be reorganized because
of recent research findings or extended to reflect new knowledge. In any case, it should
be ensured that a dynamic adaptation of the models does not have a negative influence
on services that use the model. Handling model complexity, currently modularisation
concepts are under development. Issues are the consistency and completeness of sub-
models to be reusable in different contexts.
5.2.3.
Situations and behaviour
In recognizing situations and behaviour, a differentiation is made between critical
situations whose detection must be performed in an online analysis of the information
streams provided by the sensor infrastructure, and non-critical situations, mid- and
long-term behaviour, and mental and psychical constitution which is monitored, but
does not necessarily require online analysis. A common classification of situations and
behaviour for AAL is:
Emergency situations:
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helplessness/lying on the floor;
indicators of falls;
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motionlessness;
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critical values in vital parameters (i.e. pulse rate, respiration rate, blood
pressure).
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Activities of daily living:
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sleeping; a discrimination between real sleeping and simply lying in bed
should be possible;
toilet usage; an analysis of the qualitative or quantitative properties of this
activity;
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personal hygiene, i.e. washing activities in shower, bath or washbasin,
general hygiene activities including the use of such devices as electric
toothbrushes or hair driers;
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preparation of meals: cooking activities as well as the preparation of small
snacks, taking of beverages, etc.
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Motion:
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occupancy of rooms, i.e. which rooms are occupied and for how long;
locomotion, i.e. walking, standing, sitting, lying, falling;
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quality and quantity of motion, i.e. walking speed, walking distance,
duration of physical activity, motion patterns.
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Psychosocial behaviour:
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going out;
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meeting people, i.e. visitors coming to the user's apartment;
communication, i.e. usage of phones, email, etc., self-entertainment, i.e.
usage of radio, TV, video-/DVD-players, PCs, etc.
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•
Mental and psychical constitution:
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E.g. interest, sorrow, aversion, joy;
E.g. anger, astonishment, shame, fear, stress.
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