Sensor nodes form and covers a large geographical area or network of wireless sensors. By
coalescing both sensors as well as expert system, many other problems related to sensing and decision making can be resolved simultaneously. For instance, in home if people face any problem with their home appliances such as refrigerator,microwave oven, air conditioner, etc. In such cases they usually call their dealers, vendors or service providers and because of these both money as well as time are wasted during repairing of such minor problems of appliances.