A support system for context awareness in a group home using sound cues.
Methods Inf Med
; 47(3): 198-202, 2008.
Article
in En
| MEDLINE
| ID: mdl-18473084
ABSTRACT
OBJECTIVES:
In a group home, caregivers should be aware of the inhabitant's real-time situation. The aim of our study is to facilitate the awareness of an inhabitant's situation by means of enhanced sound cues.METHODS:
We propose an audio notification system that indicates the real-time situation of persons in a group home environment using sound cues instead of visual surveillance. The notification system comprises a prediction and a notification function. The prediction function estimates a person's real-time situation using a Bayesian network and sensed information; the notification function informs recipients of the predicted situation and the confidence level of the prediction by means of sound cues. We use natural sounds as sound cues.RESULTS:
As a first step to examine our system in a group home, we conducted operation and performance tests of each unit under a simple test environment. The correct prediction of the subject's situation is approximately 90%; further, it is shown that the sound cues should be selected according to their environmental dependence.CONCLUSIONS:
The results show that the method is useful for monitoring persons. As future study, we will conduct a field test on an implemented system and improve it for practical use in a group home.
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Database:
MEDLINE
Main subject:
Auditory Perception
/
Social Support
/
Sound
/
Computer Simulation
/
Group Homes
/
Caregivers
/
Cues
/
Monitoring, Physiologic
Type of study:
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
Methods Inf Med
Year:
2008
Type:
Article
Affiliation country:
Japan