铀尾矿库WSN安全监控镜像约束域定位算法

发布时间：2018-05-12 19:00

本文选题：无线传感器网络 + 铀尾矿库　；参考：《中国安全生产科学技术》2017年11期

【摘要】：铀尾矿库的WSN安全监控监测技术是一门新型领域技术,是实现铀尾矿库安全综合治理的重要前提,定位技术因其能够快速定位事件发生区域的地理位置而成为WSN的关键技术之一。RSSI测距定位技术因其易于实现、成本低等特点而被广泛应用,然而其在铀尾矿库中会受到多径、非视距等因素的影响,远距离得到的RSSI值测距误差较大。为此,提出一种镜像最小通信圆约束域定位算法,未知节点利用多个近距离RSSI测距值生成最小通信圆,以锚节点坐标镜像最小通信圆生成镜像圆,多条件约束形成定位区域进行区域定位。仿真结果表明:多最小通信圆定位效果优于单最小通信圆,且比传统RSSI和RSSI质心算法具有更高的定位精度和较小的误差均方差。
[Abstract]:The WSN safety monitoring and monitoring technology of uranium tailings reservoir is a new field technology, which is an important prerequisite to realize the comprehensive safety management of uranium tailings reservoir. The location technology has become one of the key technologies of WSN because of its ability to quickly locate the geographical location of the area where the event occurred. RSSI ranging and positioning technology has been widely used because of its easy implementation and low cost. However, it will be multipath in uranium tailings reservoir. The distance measurement error of RSSI value obtained from long distance is large due to the influence of non-line-of-sight and other factors. In this paper, a constrained domain localization algorithm of mirrored minimum communication circle is proposed. The unknown node generates the minimum communication circle by using multiple short distance RSSI ranging values, and generates the image circle by using anchor node coordinates to mirror the minimum communication circle. Multi-conditional constraints form a location area to locate the region. The simulation results show that the localization effect of multi-minimum communication circle is better than that of single minimum communication circle, and it has higher positioning accuracy and smaller error mean square error than traditional RSSI and RSSI centroid algorithms.
【作者单位】：南华大学环境与安全工程学院;金属矿山安全与健康国家重点实验室;湖南省铀尾矿库退役治理技术工程技术研究中心;
【基金】：金属矿山安全与健康国家重点实验室开放基金项目(2016JSKSSYS04) 湖南省重点研发项目(2015SK2005) 湖南省教育厅科研重点项目(15A161) 南华大学环境保护与安全工程学院研究生创新项目(2017YCXXM08) 国家级大学生创新创业训练计划项目(201710555004) 湖南省大学生研究性学习和创新性实验计划项目(2017-320)
【分类号】：TD76;TD926.4

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