摘要：在门机应用中，为了避免门机系统在运行时发生机械碰撞，并提高整体运行舒适度，提出了S曲线拐点实时计算法，根据对运行距离的准确估算，实时计算曲线拐点，拟合曲线。针对新方法，本文对传统曲线进行了离散化处理，详细推导了曲线距离计算公式和软件流程图。实验结果表明，构建曲线平滑完整，距离控制准确，能自动适应各种门宽系统。
关键词：电梯门机驱动;S曲线;DSP控制

Abstract: In door machine applications, in order to avoid the collision in the system running, improve the overall running comfort, bring forward the S curvebreak realtime calculation method, based on the accurate estimation of ruing distance, calculate the realtime curvebreak, generate curve. For new method, the article made a discrete transform of the traditional curve, derived the curve distance calculating formula and software flow chart in detail. Experiment results show that smoothie of the curve generated, accuracy of the distance control can adjust any doorwidth system automatically.
Key words:  door machine of elevator; Scurve; DSP