摘要
超宽带定位技术作为一种室内高精度定位技术是解决危化品仓库堆垛贮存状态安全监测的有效方法,但在仓库非视距环境中,存在定位精度不足的问题,无法满足堆垛"五距"安全的监管要求。针对此问题,从UWB信号的信道模型和定位精度影响因素出发,利用高斯滤波消除了参考点在定位过程中由于系统和环境带来的随机误差影响,建立了参考点误差矢量库,并提出了一种虚拟力校正算法,利用建立的矢量库来对待测标签进行矢量补偿,达到提高定位精度的目的。实验表明,该方法可以提高危化品仓储堆垛定位精度,适用于监测危化品仓储状态。
As an indoor high-accuracy location technology,the ultra-wideband(UWB)location technology is an effective method to solve the safety monitoring on the storage status of stacking in the hazardous chemicals problem of insufficient location accuracy in the non-line-of-sight environment of warehouse,which cant meet requirements on the five-distance safety of stacking.Aiming at this problem,starting from the channel and the influence factors of location accuracy,the random error influence of the reference point caused by the system and the environment during the location process was eliminated by using the Gaussian filter,and a vector library of reference was established.A correction algorithm based on virtual force was put forward,and the vector compensation be tested was carried out by using the established vector library,so as to improve the location accuracy.showed that this method can improve the location accuracy of the hazardous chemicals storage stacking,for monitoring the storage status of hazardous chemicals.
作者
戴波
周泽彧
安海洋
李雁飞
任海胜
DAI Bo;ZHOU Zeyu;AN Haiyang;LI Yanfei;REN Haisheng(College of Information Engineering,Beijing Institute of Petrochemical Technology,Beijing 102600,China;College of Information Science&Technology,Beijing University of Chemical Technology,Beijing 100029,China)
出处
《中国安全生产科学技术》
CAS
CSCD
北大核心
2018年第3期65-71,共7页
Journal of Safety Science and Technology
基金
北京市教育委员会科技能力提升计划资助项目(PXM2016_014222_000041)
关键词
危化品仓储
“五距”监测
UWB定位
虚拟力
校正算法
hazardous chemicals storage
five-distance monitoring
ultra-wideband(UWB)location
virtual force
correction algorithm