Maximum allowable feed rate for reference-pulse Computer Numerical-Control (CNC) system is limited by the interpolator iteration speed. In other word, it means higher iteration speed corresponds to higher maximum allowable feed rate. To develop interpolator with higher maximum allowable feed rate, the proposed interpolator is aimed to execute the interpolator tasks in concurrent manner. In the recent years, the computer industry has changed a lot in term of hardware development. Multi-core processors were introduced whereby a single computer has two processors working on it and contain multiple logical processors in a single package. By using multi-cores environment, algorithm has to be changed in order to fully utilise the speed of the processors. This situation is also required in interpolator algorithm. The existing interpolator is not using parallel programming which every task have not been execute simultaneous in concurrent manner although using multi-cores processor computer, thus, the more time is needed for the iteration time especially for a complex and large scale of process. The main research objective is to modify the existing Wan Yusoff reference-pulse CNC interpolator and Omirou reference-pulse CNC interpolator using parallel programming to increase maximum allowable feed rate. The proposed interpolator is developed using parallel programming in C/C++ language through Open Multi-Processing (OpenMP). The proposed interpolator was compared with Wan Yusoff (2003) interpolator and Omirou and Nearchau (2006) interpolator through computer simulation and experiment with servomotor. Computer simulations which were conducted on various parametric curves indicated that the proposed interpolator are at least 37.04% more efficient compared to Wan Yusoff (2003) interpolator and at least 20.10% more efficient compared to Omirou and Nearchau (2006) interpolator. Finally, the experimental results verify that the maximum allowable feed rate for the proposed interpolator are higher than Wan Yusoff (2003) interpolator and higher than Omirou and Nearchau (2006) interpolator. The proposed interpolator is ready for new era of multi-processors.
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机译：参考脉冲计算机数字控制（CNC）系统的最大允许进给速度受插补器迭代速度的限制。换句话说，这意味着较高的迭代速度与较高的最大允许进给速度相对应。为了开发具有更高最大允许进给速率的插补器，提出的插补器旨在以并行方式执行插补器任务。近年来，计算机行业在硬件开发方面发生了很大变化。引入了多核处理器，即一台计算机上有两个工作的处理器，并且在一个程序包中包含多个逻辑处理器。通过使用多核环境，必须更改算法才能充分利用处理器的速度。内插器算法中也需要这种情况。现有的内插器没有使用并行编程，尽管使用多核处理器计算机，但并不是并行执行每个任务，因此，迭代时间需要更多的时间，特别是对于复杂而大规模的过程。主要研究目标是使用并行编程来修改现有的Wan Yusoff参考脉冲CNC插补器和Omirou参考脉冲CNC插补器，以增加最大允许进给率。拟议的插值器是通过Open Multi-Processing（OpenMP）使用C / C ++语言的并行编程开发的。通过计算机仿真和伺服电机实验，将拟议的插值器与Wan Yusoff（2003）插值器和Omirou and Nearchau（2006）插值器进行了比较。在各种参数曲线上进行的计算机仿真表明，与Wan Yusoff（2003）插值器相比，拟议的插值器效率至少高出37.04％，与Omirou和Nearchau（2006）插值器相比，效率至少高出20.10％。最后，实验结果验证了所提出的插值器的最大允许进给率高于Wan Yusoff（2003）插值器，也高于Omirou和Nearchau（2006）插值器。拟议的内插器已为多处理器的新时代做好了准备。
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