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从分析信号强度作为场景特征统计的数据所表现数据特征入手,进行Zigbee信号测距的可行性分析。结合系统要求选择指纹法定位方案,优化了测距方程。提出一种参考节点组网布局方案,确定最优参考点间距,大大消除了环境因数的影响提高位置指纹的匹配效率和准确度,进而大幅提高定位精度。
Starting from the analysis of the signal intensity as the data characteristic of the statistical data of the scene, the feasibility of Zigbee signal ranging is analyzed. Combined with the system requirements to select the fingerprinting scheme, to optimize the ranging equation. A scheme of network layout of reference nodes is proposed to determine the optimal reference point spacing, which greatly eliminates the influence of environmental factors and improves the matching efficiency and accuracy of location fingerprints, thus greatly improving the positioning accuracy.