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...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。展开更多
As CIMS is applied widely in Japanese shipbuilding industry, the efficiency is improved and labor time is reduced. In this paper, we firstly introduce the development course of ship- building CIMS which developed from...As CIMS is applied widely in Japanese shipbuilding industry, the efficiency is improved and labor time is reduced. In this paper, we firstly introduce the development course of ship- building CIMS which developed from the integration of CAD/CAM,Product Model(PM) to Advanced CIM(ACIM) between 1985 and 2000. Secondly, the characteristics of CIMS system are analyzed as well as names and functions of different CIMS systems developed by different corporations. Finally, we show the tendency of CIMS in Japanese Shipyards.展开更多
文摘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。
文摘As CIMS is applied widely in Japanese shipbuilding industry, the efficiency is improved and labor time is reduced. In this paper, we firstly introduce the development course of ship- building CIMS which developed from the integration of CAD/CAM,Product Model(PM) to Advanced CIM(ACIM) between 1985 and 2000. Secondly, the characteristics of CIMS system are analyzed as well as names and functions of different CIMS systems developed by different corporations. Finally, we show the tendency of CIMS in Japanese Shipyards.
