Dynamic Bayesian Networks for Context-Aware Fall Risk Assessment

作者：Koshmak Gregory^*; Linden Maria; Loutfi Amy

来源：Sensors (Switzerland), 2014, 14(5): 9330-9348.

DOI：10.3390/s140509330

• ambient assisted living (AAL)
• fall detection
• context recognition
• multi-sensor fusion
• dynamic Bayesian networks (DBN)

Fall incidents among the elderly often occur in the home and can cause serious injuries affecting their independent living. This paper presents an approach where data from wearable sensors integrated in a smart home environment is combined using a dynamic Bayesian network. The smart home environment provides contextual data, obtained from environmental sensors, and contributes to assessing a fall risk probability. The evaluation of the developed system is performed through simulation. Each time step is represented by a single user activity and interacts with a fall sensors located on a mobile device. A posterior probability is calculated for each recognized activity or contextual information. The output of the system provides a total risk assessment of falling given a response from the fall sensor.

• 出版日期2014-5