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针对串行口数据传输速度慢、数据传输量小等缺点,提出了一种在手臂机器人控制系统中上位计算机和下位控制器之间基于并行口实现双向数据通信的方法,它充分利用了传统并行接口的优势,文章采用并口的EPP工作模式进行数据的双向通信,实现了高速的实时控制通信功能,并给出了硬件设计电路、软件设计流程图和试验结果。实验结果表明,采用文中给出的设计是可行的;系统在实时性、准确性上都能达到良好的效果,实现了廉价高速的双向数据通信。
Aiming at the disadvantages of slow serial data transmission and small data transmission, a method of bidirectional data communication based on parallel port between upper computer and lower controller in arm robot control system is proposed. It takes full advantage of the traditional parallelism The advantages of the interface, the paper uses parallel port EPP mode of data for two-way communication, to achieve high-speed real-time control communication functions, and gives the hardware design circuit, software design flow chart and test results. The experimental results show that it is feasible to adopt the design given in the paper. The system can achieve good results in both real-time and accuracy, and realize the bidirectional data communication at low cost and high speed.