An Automatic Telemonitoring System for Elderly People at Home

This paper presents Lynx, an automatic telemonitoring system for elderly people at home, which ensure their safety with an affordable cost. Lynx is based on the use of standard communications and open software and hardware platforms. The primary requirement of the platform is based on the principle of "no intrusion", so the "conscious" interaction of the user with the system is virtually inexistent. Therefore the platform is configured as a "plug-and-play" system, with different environmental wireless sensors, operating on frequency of 433 MHz or Zigbee, located at the user's home (presence, movements, doors, temperature, smoke, etc.), and biomedical sensors using bluetooth, measuring physical values as respiratory rate, heart rate, body temperature, position. Both kinds of sensors use a Rasperry Pi and Arduino deployed in every user's home. This Rasperry Pi runs OSGi software and Json Web services to send the gathered information to a "central cloud” system.