A system for ubiquitous fall monitoring at home via a wireless sensor network and a wearable mote

  • Authors:

  • Roberto Paoli;Francisco J. Fernández-Luque;Ginés Doménech;Félix Martínez;Juan Zapata;Ramón Ruiz

  • Affiliations:

  • Faculty of Engineering, University of Bologna, 40127 Bologna (BO), Italy;Ambiental Intelligence & Interaction S.L.L. (Ami2), Edificio CEEIM, móódulo 11, Campus Universitario Espinardo, s/n 30100 Murcia, Spain;Departamento de Electrónica, Tecnología de Computadoras y Proyectos, Universidad Politécnica de Cartagena, Antiguo Cuartel de Antigones, Plaza del Hospital 1, 30202 Cartagena, Spain;Departamento de Electrónica, Tecnología de Computadoras y Proyectos, Universidad Politécnica de Cartagena, Antiguo Cuartel de Antigones, Plaza del Hospital 1, 30202 Cartagena, Spain;Departamento de Electrónica, Tecnología de Computadoras y Proyectos, Universidad Politécnica de Cartagena, Antiguo Cuartel de Antigones, Plaza del Hospital 1, 30202 Cartagena, Spain;Departamento de Electrónica, Tecnología de Computadoras y Proyectos, Universidad Politécnica de Cartagena, Antiguo Cuartel de Antigones, Plaza del Hospital 1, 30202 Cartagena, Spain

  • Venue:
  • Expert Systems with Applications: An International Journal
  • Year:
  • 2012

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Abstract

Accidental falls of our elderly, and physical injuries resulting, represent a major health and economic problem. Falls are the most common cause of serious injuries and are a major health threat in the stratum of older population. Early detection of a fall is a key factor when trying to provide adequate care to elderly person who has suffered an accident at home. Therefore, the detection of falls in the elderly remains a major challenge in the field of public health. Specific actions aimed at the fall detection can provide urgent care which allows, on the other hand, drastically reduce the cost of medical care, and improve primary care service. In this paper, we present a support system for detecting falls of an elder person by the combination of a wearable wireless sensor node based on an accelerometer and a static wireless non-intrusive sensory infrastructure based on heterogeneous sensor nodes. This previous infrastructure called DIA (Dispositivo Inteligente de Alarma, in Spanish) is an AAL (Ambient Assisted Living) system that allows to infer a potential fall. This inference is reinforced for prompt attention by a specific sensorisation at portable node sensor in order to help distinguish between falls and daily activities of assisted person. The wearable node will not determine a falling situation, it will advice the reasoner layer about specific acceleration patterns that could, eventually, imply a falling. Is at the higher layer where the falling is determined from the whole context produced by mesh of fixed nodes. Experimental results have shown that the proposed system obtains high reliability and sensitivity in the detection of the fall.