Fault tolerant wireless sensor network for remote data acquisition

This paper enables the personnel to monitor and acquire data from hazardous environments where the human inspection is difficult. The wireless sensor motes are developed for measuring the real-time parameters like temperature, humidity, pressure etc. Further ZigBee protocol has been utilized to enable Inter networking of sensor motes which allows the personnel to aggregate data which makes the available data more reliable. The data sensed by different motes are communicated to the cluster head. The cluster head performs data aggregation which is then communicated to the officials through GSM technology. Whenever the measured real time data crosses a predefined threshold, a complete picture of the environment is sent to the official´s mobile as MMS. Failure of any node wont affect the Data Aggregation and data from the remaining node can be used to know about the Environment. The proposed algorithm is built using Atmel Processor and the results are presented.