基于离线粗插补的数据采样插补法

Data Sampling Interpolation Based on First Off-line Interpolation

传统的数据采样插补法受插补周期、位置反馈采样周期的约束,不能充分发挥计算机的性能。针对上述不足,提出将粗插补计算过程放到非实时计算时间,通过通讯接口传送插补数据给精插补控制器,并由精插补控制完成脉冲输出及位置控制任务。以达到合理分配软硬件功能,充分利用CPU资源的目的,以满足高速、高精度插补的要求。

The traditional data sampling interpolation is constrained by interpolation cycle, the position feedback sampling period, which can not display fully the performance of the computer. In view of the above insufficiency, the method was proposed that puts the thick interpolation computation process to the non-real-time computation time, transfers the interpolation data to the second in- terpolation controller through the communication connection, and completes the pulse output and the position control duty by the second interpolation. The method can distribute the software and hardware function reasonably, use the CPU resources fully, satisfy the request of high speed and high accuracy interpolation.