摘要
基于仓库物流、大型超市等室内宽阔空间的几何特征,提出了一种方形的三维覆盖布设方案。分析三维覆盖率的影响因素,并依据时间到达(TOA)定位算法,使用空间几何精度因子(PDOP)来评价定位精度。最后通过模拟仿真实验,分析当传感器的间距、高度变化时,PDOP值的空间分布规律。实验结果表明,在模拟的宽阔室内环境下,通过传感器的间距和高度变化先后的PDOP值分布情况,对方形布设方案进行优化,可以得到理想的定位精度。
Based on the geometric features of the indoor space, such as the warehouse logistics, the large super- market and so on, a new method for the layout of the 3D coverage is proposed. Analyzing the influence factors of the three-dimensional coverage, according to the time of arrival （TOA） positioning algorithm, and using spatial geometric accuracy factor （PDOP） to evaluate the positioning accuracy. At last, through the simulation experiment, the distribu- tion regularity of the PDOP value is analyzed when the distance and the height of the sensor are changing. The experi- mental results show that, in the simulation of the wide indoor environment, the distribution of the PDOP value can be optimized through the distance and height of the sensor, and the ideal positioning accuracy can be obtained.
作者
何琦敏
王坚
HE Qi-min WANG Jian(School of Environmental Science and Spatial Informatics, Jiangsu Key Laboratory of Resources and Environmental , CUMT, Xuzhou 221116, China)
出处
《激光杂志》
北大核心
2017年第4期113-117,共5页
Laser Journal
基金
国家重点研发计划资助项目(2016YFC0803103)
关键词
宽阔空间
三维覆盖
时间到达差
几何精度因子
方形布设
broad space
three - dimensional coverage
time difference of arrival
geometric precision factor
square layout
