论文部分内容阅读
针对数控系统现场总线实时传输过程中数据包出错所造成的安全性问题,提出了一种在数控系统双环总线结构下具有自我检错及纠错功能的数据传输方案.方案给出了一种双向传输数据的现场总线结构,设计了具有自我纠错功能的数据格式及相关的检错及纠错方法.实验结果表明与现有方案相比,该方案在满足数控系统实时性要求的前提下,有效地降低了重传概率,提升了通信效率.
Aiming at the security problems caused by the error of data packets during the real-time transmission of the fieldbus of NC system, a data transmission scheme with self-detection and error correction under the double-loop bus structure of NC system is proposed. The field bus structure of data transmission is designed and the data format with self-error correction function and the related error detection and correction methods are designed.Experimental results show that under the precondition of meeting the real-time requirements of numerical control system, compared with the existing schemes, Effectively reduce the retransmission probability and improve the communication efficiency.