Research on the Way of Route Establishment about Mobile Node and Simulation in Mine Base on IEEE802.15.4

Frequent coal mine accidents in China , seriously affected the normal production and life safety of mine personnel , more shows the importance of mine safety information systems for the production of coal mine safety . Today's mine safety information systems are based on the industrial bus , a wired communication transmission network . However , the accompanying coal mining accelerated speed , wired network coverage, scalability , and flexibility deficiencies , in order to solve this problem , the introduction of wireless personal area network (wireless personal area network, WPAN) for close- range the equipment within the wireless connection is established , the meters within the scope of a plurality of devices connected together, so that they can communicate with each other and even through the gateway device to access the LAN or Internet through wireless . ZigBee technology to as a emerging WAPN of communication technology , with its simple protocol , low power consumption , easy networking , home automation , intelligent buildings , industrial surveillance has a broad market space . Firstly, a comprehensive analysis of research ZigBee protocol architecture , network topology and network technology , understanding of the advantages and applications of ZigBee technology for the needs of the underground environment , design based on ZigBee technology applicable to coal mine tunnel model of the wireless local area network . This paper focuses on Ad hoc networks of two typical routing protocols establish : AODV ( Ad Hoc on- demand Distance Vector Routing in Ad Hoc on-demand distance vector protocol ) , DSR ( Dynamic Source Routing Protocol , Dynamic Source Routing Protocol) . Two routing protocols to simulate the capacity for different network ( mobile nodes density ) , select the data packet delivery ratio , end-to-end average delay , average hop count , routing overhead as a parameter in the network simulation platform NS2 simulation simulation results detailed analysis , analysis of mobile node density impact on network performance , the result is a practical significance for engineering applications , wireless network deployment .