【摘要】 本研究针对煤矿井下环境建立了以无线传感器网络为基础的监测定位系统。该系统以保证定位功能的实现为基本要求,在高容灾度的结构上配合使用合理的容错机制;提出了使用PIR或PIT内点测试法确定人员与定位区域的相对位置;在测距阶段对路径损耗模型参数的更新采用简单有效的计算方法;在传统三边定位算法的基础上,提出基于RSSI测距的加权三边定位方法。试验仿真表明,该方法有效提高了人员定位精度,同时具有较好的容错性。更多还原

【Abstract】 This paper described a wireless-sensor-network based monitoring and positioning system for underground mine. This system regards the condition of ensuring the function of positioning as the basic requirements and uses reasonable fault-tolerant mechanism on the structure of the high degree of disaster. The paper proposed PIR or PIT interior point test method to determine the location area and miner relative position. In the ranging phase,using simple and effective calculation method to update path fading model parameters and finally put forward weighted trilateral localization method based on RSSI ranging. The experimental simulation shows that this method effectively improves the personnel positioning accuracy,and proves that it has good fault tolerance.更多还原