数控系统S型曲线加减速快速规划研究  

Study on S-shape Curve Acceleration and Deceleration Control Fast Planning on CNC System

作　　者：田军锋[1,2] 林浒 姚壮[1,2] 李杰[1,2] 

机构地区：[1]中国科学院研究生院,北京100039 [2]中国科学院沈阳计算技术研究所,沈阳110168

出　　处：《小型微型计算机系统》2013年第1期168-172,共5页Journal of Chinese Computer Systems

基　　金：国家科技重大专项项目(2011ZX04016-071)资助

摘　　要：加减速控制是数控系统开发的关键技术之一,而一般S型加减速算法公式复杂,计算比较费时,因此,提出了改进的S型曲线加减速算法,根据S型曲线对称性和初、末速度不同的特点,对公式重新进行了推导,简化算法,可以快速规划出各个阶段的运行时间用MATLAB对本文所提出的算法进行了验证,可以得到平滑的速度和加速度轮廓,证明了本文算法的正确性和可行性与原有算法的运行时间进行对比分析,本文算法的执行时间大大降低.The control of acceleration and deceleration is one of key techniques used in CNC systems.The formula of S-shape acceleration and deceleration algorithm is complex and calculation is generally more time-consuming.Therefore,an improved S-shape acceleration and deceleration algorithm was proposed.According to the symmetry of S-curve and the different of initial velocity and terminal velocity,Related calculation formulas were derived and simplified,which could quickly figure out the run time of the various stages.We perform expriment based on improvement algorithm under the MATLAB environment.This method can obtain a smooth the velocity and acceleration profile.The result from simulation confirms the accuracy and feasibility of improvement algorithm.Compared with the runtime of traditional algorithm,the result shows that the new algorithm′s execute time has been largely reduced.

关 键 词：数控系统 S型曲线 对称性 快速规划 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]