Date Added: Feb 2013
In this paper, the authors describe the design of a Wireless Sensor Network based on ZigBee technology. It is mainly used for collecting and transferring the various monitoring information about the coal mine underground with the help of WSN. Then the data will be analyzed and processed in the monitoring system outside, so that users can ensure the safety of the coal production and effectiveness better. PC based server & Smartphone are synchronized through PC synchronization software & though Internet. The same screen as desktop computer is displayed on the Smartphone so that person from remote location also sees the current status of various parameters inside coal mine.