  With the aging of our populations, dementia will become a problem which would
directly or indirectly affect a large number of people. One of the most
dangerous dementia symptoms is wandering. It consists in aimless walking and
spatial disorientation, which might lead to various unpleasant situations like
falling down accidents at home to leaving the living place and going missing.
Therefore, in order to ensure elderly people's safety it is crucial to detect
and alarm the caregivers in case of such incidents. It can be done by tracking
the sufferers movements and detecting signs of repetitiveness. The paper
presents the results of the study, in which the wandering behavior of people
suffering from dementia was monitored using a Bluetooth Low Energy based
positioning system. The paper includes the description of the system used for
patients localization and the results of the tests performed in a long term
care facility.
