ABSTRACT
In this chapter, it is described that the monitoring systems have a major role in preventing critical problem-solving. Now most of the applications and devices are based on wireless technology only. The main advantage of this system is that it is very easy to communicate with the device and control the overall activity of the system and even to take necessary and timely decisions. The monitoring systems are used to control the activities and decisions based on the observed data. The sensors are used to sense the data whatever users are required. Most of the contactless devices are made by using all types of processors and devices. The main problem of this kind of wireless technology is data transmission and data analysis for future references. The decisions are based upon the data analysis report. For that reason, the blowfish algorithm is used to send the compressed packet as data. The algorithms take the data from the cloud and the trained data results process it.
