基于zigbee技术在矿井下节点切换机制的研究

节点接入切换机制和路由技术是井下定位系统的关键技术。根据矿井环境的特点，改进移动节点入网接入方式，提出移动节点地址分配的新方案。该方案中移动节点的地址不由协调器分配，在入井前由程序直接设定，且不随位置的移动而改变。仿真结果表明，提高移动节点入网成功率，减少了端到端的延时和丢包率，提高了数据传输效率。

Research of Switching Mechanism of Node Under Mine Base on Zigbee

The joining and switching mechanism of motive node and routing is the key technologies in people''s position system under mine. According to the characteristics of underground mine environment, we improved the joining and switching mechanism of motive node, and put forward a new scheme of node address allocation. In this scheme, the motive node''s address was not assigned by the coordinator, but was directly set before entering the mine, and did not change with the location of the mobile . The simulation results show that the scheme can raise the success rate of motive node to join the network, reduce end-to-end latency and packet loss rate, and increase the data transfer efficiency.