定位传感器基站部署优化方案研究

Research on optimization of deployment plans for positioning sensor base stations

室内定位技术是卫星定位的辅助定位补充手段,能克服卫星信号难以穿越建筑物等缺点,而传感器基站的合理部署是实现高精度室内定位的关键内容。为进一步改善传感器综合定位性能,本文基于改进的遗传算法优化基站部署方案,以精度衰减因子作为评估指标,分析不同基站数量、位置和环境条件等因素对定位综合性能的影响,并以仿真球形体育馆为例,进行了验证。结果表明,采用4个流动站和1个固定站方案的综合效益最高,能够很好地应用于快速组网场景,具有较好的参考价值。

Indoor positioning technology serve as a complementary solution to satellite positioning,overcoming the shortcomings posed by satellite signals that struggle to pass through buildings.The reasonable deployment of sensor base stations is the key to achieve high-precision indoor positioning.To improve the accuracy of location services provided by sensors,this paper studies a base station deployment scheme based on utilizing an improved genetic algorithm.Taking dilution of precision(DOP)as the evaluation index,we analyze the influence of base stations with different numbers,locations,and environmental conditions on the location performance.Taking a simulated spherical gymnasium as an example,the proposed optimization scheme is well applied to the scene of rapid networking and has a good reference value.