基于改进3DL算法的智能变电站人员WSN定位

Research on WSN Location of Intelligent Substation Personnel Based on Improved 3DL Algorithm

为了提高智能变电站人员无线传感器网络(WSN)的定位精度,提出一种基于改进3DL算法的定位方法。通过对3DL算法的节点测距误差和定位误差进行补偿,降低3DL算法的节点测距误差和定位误差,实现3DL算法的改进。将改进的3DL算法应用于智能变电站的人员WSN中,可有效提高智能变电站人员WSN的定位精度。相较于改进前的3DL算法和传统极大似然估算法,所提方法具有更高的定位精度和定位覆盖率,可减小位置节点坐标计算误差累计的影响,更适用于非视距环境下智能变电站人员WSN定位。

In order to improve the positioning accuracy of personnel wireless sensor network(WSN)in intelligent substation,a positioning method based on improved 3DL algorithm is proposed.By compensating the node ranging error and positioning error of 3DL algorithm,the node ranging error and positioning error of 3DL algorithm are reduced,and the improvement of 3DL algorithm is realized.Applying the improved 3DL algorithm to the WSN of intelligent substation personnel can effectively improve the positioning accuracy of the WSN of intelligent substation personnel.Compared with the improved 3DL algorithm and the traditional maximum likelihood estimation algorithm,the proposed method has higher positioning accuracy and coverage,which can reduce the impact of the cumulative error of the location node coordinate calculation,and is more suitable for the WSN positioning of intelligent substation personnel in the non-line-of-sight environment.