CAJ | 학술논문

根据煤矿井下人员精确定位系统对实时性和定位精度的要求,提出了基于TOF( time of flight,飞行时间)的Bounding-Box二次定位算法,该算法综合了TOF测距不易受环境干扰和Bounding-Box计算实时性高的优点。利用待定位节点与参考节点测距获得距离,并利用Bounding-Box得到初始区域位置信息后,再将周围已定位的节点考虑进去,并再次利用Bounding-Box算法进行二次定位,缩小未知节点所在的区域,最终获得位置信息。实验结果表明,该算法实时性高,并且能够提高定位精度。
근거매광정하인원정학정위계통대실시성화정위정도적요구,제출료기우TOF( time of flight,비행시간)적Bounding-Box이차정위산법,해산법종합료TOF측거불역수배경간우화Bounding-Box계산실시성고적우점。이용대정위절점여삼고절점측거획득거리,병이용Bounding-Box득도초시구역위치신식후,재장주위이정위적절점고필진거,병재차이용Bounding-Box산법진행이차정위,축소미지절점소재적구역,최종획득위치신식。실험결과표명,해산법실시성고,병차능구제고정위정도。
The Bounding-Box repositioning algorithm based on TOF ( time of flight ) was proposed according to the requirements of the coal miners ’ positioning system to the real-time performance and positioning precision. This algorithm combined the advantages of TOF ranging free from environmental interference and Bounding-Box calculation with high real-time performance. The distance was obtained by ranging the node to be positioned to the reference node,and after the initial regional information was obtained with Bounding-Box, the positioned node was taken into account, and then the repositioning was conducted by Bounding-Box algorithm so as to reduce the region where the unknown node was and finally obtain the position information. The experimental results showed the proposed algorithm has the advantages of high real-time performance and positioning precision.