Monitoring the regular activities using sensor nodes (no camera included) at important locations.
Assessment of abnormal behavior by interpreting the information of the sensor nodes using an intelligent controller.
Communicating the message to the mobile phones of caretakers.
Power saving algorithms incorporated to minimize the energy consumption.
CCU in Room & Message in Mobile
Motion sensor installed in drawing room & Motion sensor installed in front of wash room
Current sensor connected to TV set & Current sensor connected to toaster
Features
Non-invasive and does not use any camera
Sensor nodes are light weight, portable and easy to install
Low power consumption to avoid electrical loading
Automatic refreshing of memory after 16th day of installation for continuous use
Emergency situation is assessed and message sent to the caretaker through mobile phone.
The user does not have to keep track of the operation of the instrument. Health status of the sensor nodes and the central controller is checked at regular intervals and message sent to themaintenance person if required.
Device
Packaged wireless sensor nodes to be fixed in the house
A central receiver to be fixed in the house
The sensor nodes can be removed when required
Connection of the central receiver through mobile network to the mobile of the caretaker/s.
Hardware
PIR motion sensors
Current Transformers
Central controller unit with LCD interface
ATMEGA 328 microcontroller
ZigBee wireless transmission, 2.4GHz
Software
Behaviour prediction algorithm in central controller
Inactivity period prediction for each sensor nodes
