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公开(公告)号：EP1389749A2
公开(公告)日：2004-02-18
申请号：EP03254589.9
申请日：2003-07-23
申请人： Fanuc Ltd
IPC分类号： G05B19/4103
CPC分类号： G05B19/4103 , G05B2219/33077 , G05B2219/34124 , G05B2219/34127 , G05B2219/34135 , G05B2219/34145 , G05B2219/34171 , G05B2219/42207
摘要： A curve interpolation method capable of obtaining a curve approximating an original curve based on a sequence of command points within a tolerance set for the original curve, and performing interpolation on the obtained curve. Points Q1, ..., Q2n are interpolated between respective two adjacent command points (P0, P1), (P1, P2), ..., (Pn-1, Pn) as shape-defining points. The shape-defining points are positioned within a tolerance width 2w set to the original curve. One shape-defining point and shape-defining points surrounding the one shape-defining point are successively selected and an approximate curve for the selected shape-defining points is successively created. The one shape-defining point is moved towards the approximate curve to determine a modified shape-defining point for the one shape-defining point. A smooth curve passing a sequence of the modified shape-defining points is created and interpolation for machining is performed on the created curve. Since the shape-defining points are positioned closer to an original target curve within a tolerance width set to the original curve than the command points, the created smooth curve passing the sequence of modified shape-defining points approximates well to the original target curve within the tolerance width.
摘要翻译： 一种曲线插值方法，其能够基于在原始曲线的公差集内的指令点的序列获得接近于原始曲线的曲线，并对获得的曲线进行插值。 点Q1，...，Q2n在相应的两个相邻的指令点（P0，P1），（P1，P2），...，（Pn-1，Pn）之间插值作为形状定义点。 形状定义点位于设置为原始曲线的公差宽度2w内。 连续地选择围绕一个形状定义点的一个形状定义点和形状限定点，并且连续地创建所选择的形状定义点的近似曲线。 将一个形状定义点移动到近似曲线以确定用于一个形状定义点的修改的形状定义点。 创建通过修改形状定义点序列的平滑曲线，并对所创建的曲线执行用于加工的插值。 由于形状定义点位于与指令点相对于原始曲线的公差宽度内更靠近原始目标曲线，因此通过修改后的形状定义点的顺序创建的平滑曲线很好地接近于原始曲线内的原始目标曲线 公差宽度
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公开(公告)号：EP1389749B1
公开(公告)日：2011-06-08
申请号：EP03254589.9
申请日：2003-07-23
申请人： FANUC CORPORATION
IPC分类号： G05B19/4103
CPC分类号： G05B19/4103 , G05B2219/33077 , G05B2219/34124 , G05B2219/34127 , G05B2219/34135 , G05B2219/34145 , G05B2219/34171 , G05B2219/42207
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公开(公告)号：EP1389749A3
公开(公告)日：2007-05-02
申请号：EP03254589.9
申请日：2003-07-23
申请人： FANUC LTD
IPC分类号： G05B19/4103
CPC分类号： G05B19/4103 , G05B2219/33077 , G05B2219/34124 , G05B2219/34127 , G05B2219/34135 , G05B2219/34145 , G05B2219/34171 , G05B2219/42207
摘要： A curve interpolation method capable of obtaining a curve approximating an original curve based on a sequence of command points within a tolerance set for the original curve, and performing interpolation on the obtained curve. Points Q1, ..., Q2n are interpolated between respective two adjacent command points (P0, P1), (P1, P2), ..., (Pn-1, Pn) as shape-defining points. The shape-defining points are positioned within a tolerance width 2w set to the original curve. One shape-defining point and shape-defining points surrounding the one shape-defining point are successively selected and an approximate curve for the selected shape-defining points is successively created. The one shape-defining point is moved towards the approximate curve to determine a modified shape-defining point for the one shape-defining point. A smooth curve passing a sequence of the modified shape-defining points is created and interpolation for machining is performed on the created curve. Since the shape-defining points are positioned closer to an original target curve within a tolerance width set to the original curve than the command points, the created smooth curve passing the sequence of modified shape-defining points approximates well to the original target curve within the tolerance width.
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