ELDER CARE BASED ON COGNITIVE SENSOR NETWORK
The population of the elderly people is in a steady rise throughout the world, creating the
need to increase the facilities for the care of the elderly. The life expectancy of a human has
increased significantly over the past decade. This means that there are more elderly people living
in the world today than they were 10–20 years ago. There are many people in our community,
who because of age, infirmity, memory loss or impaired judgment can no longer be totally relied
upon, are having pressure put on them to leave their home to stay in monitored environment and
give up their precious independence.
If they prefer to live alone they do however require constant monitoring so that medical
help can be provided immediately in times of dire needs. Surely, with the technology of today,
there is a better way for these people to resolve this problem, so that they can live independently,
rather than being forced to live in a retirement village or old people’s home. Considerable
research efforts have been focused towards in-home monitoring of people, often using wireless
personal area networks.
Some of the studies have demonstrated the feasibility of remotely monitoring activities at
home. In earlier days, Camera based system for home monitoring system has been popular with
the old people. It is not convenient to keep on monitoring them through the Camera based
surveillance. So we need an efficient method to get constant monitoring.
In this paper, we report the design and development of a smart home based on cognitive
sensors network. A prototype system has been designed and developed. The sensors detect the
usage of appliances at home and collect important information. In this project we have current
sensor to detect the usage of electrical appliance, bed sensor to know the presence of the aged
people in the bed, and also the water flow sensor to detect the usage or the wastage of water in
the home on the timely manner. The purpose is to monitor people’s daily activities in a non-
invasive manner and also provide reassurance that should something happen for which assistance
is required; the system will alert the appropriate people.
The usage of specific appliances in the home on the timely manner will be built in the
system itself. Any major deviation in the routine of their daily life is defined as an abnormal
activity. Upon detection of abnormality the system will trigger an alarm situation; in such case a
SMS or “txt” message could be sent to a caregiver or family member who could check on the
person and take appropriate action.
Panic button will also be placed to intimate the need of emergency help, which has the
First section transmits about device running status in the area1. It also displays the power
consumed that area. It also has Panic button for emergency.
Second section transmits about the old people presence in the bed and water flow in
his/her room. It also displays the specifics in that area. It also has Panic button for emergency.
In the PC, the data are compared with the schedule in the timely manner and an alert
message is sent to a caregiver or family member who could check on the person and take
Transmitter Section 1:
Transmitter Section 2:
PIC 16F877A Microcontroller unit
Zigbee, GSM modem
PC with .Net
Bed, current, water flow sensor.
MP Lab or CCS Compiler