The drawbacks of the existing systems can be summarized as follows: The amount of data that is
being stored is high. The power consumption is high while transmitting the huge stored data. Hence,the
way in which they are transmitted must be designed with care to reduce power consumption. There is also
a problem in storing huge amount of data since the monitoring would be continuous. The use of wired
connections in the system would not be comfortable for the users. The frequency of measurement of the
data also plays a vital role in the performance of the system. The system for managing the tasks such as
data gathering, storing and analyzing must be scalable and portable.