基于CPLD的旋转联接部件信号传输控制系统设计

针对固定部分的控制器与外部旋转执行机构之间的信号传输问题,对旋转联接部件信号传输控制系统的电路构成、控制模块与信号通信编解码等方面进行了研究,对旋转联接部件中的光通信过程进行了归纳,提出了一种以大规模可编程控制芯片CPLD为通信控制硬件核心,以激光作为数据通信载体的包含了控制信号接收、信号编码、光电转换、信号解码、信号反馈等多个功能模块的高速双向数据传输系统,并搭建了旋转联接部件实验平台对其中的旋转过程中信号传输的数据正确率和光信号传输的损耗率进行了测试。研究结果表明,基于大规模可编程控制技术的旋转联接部件信号传输控制器具有结构简单、工作性能可靠、光信号损耗小等优点,具有很强的实际应用价值。

Design of signal transmission system of rotary joint component based on CPLD

Aiming at the problem of the signal transmission between the fixed control system and the external rotation executive mechanism,a research included the circuit structure, control module and signal was done, and the optical communication technique was applied to the signal transmission system of rotary joint component. Using the technique of large-scale programmable controller, a signal transmission system of rotary joint component which included control signal reception,signal encoding, photoelectric conversion, signal decoding and signal feedback was designed. This high-speed bidirectional signal transmission system used the CPLD chip as the communication controller and laser signal as the communication channel. A prototype system was developed to test the data accuracy and optical signal loss in the process of the signal transmission. The results indicate that this signal transmission system has simple structure, more reliable, lower optical signal loss and applicable. [ABSTRACT FROM AUTHOR]