The main problem with remote health monitoring system is that it has to be continuous to provide
good support for the patients at home. And hence there is a need to measure the required parameters in
regular intervals of time and then the gathered data is analyzed to know the condition of the elderly
people. The parameters, for example let us consider the body temperature data need to be measured every
10 minutes interval. Thus if we need to store the gathered data for analysis, over a period of time, the data
will be huge. Out of these huge data, only some would be needed for later reference. So it is a waste of
memory to store all the gathered values. Thus there is a need for the data reduction in such health
monitoring systems.