基于DSP及CPLD的掘进机控制系统设计

提出了一种基于DSP及CPLD的掘进机控制系统设计方案,介绍了系统总体设计、CPLD数据采集模块及CPLD逻辑控制模块的设计。该系统采用CPLD实现数据采集,在AD采样环节节省DSP等待时间12μs,25路模拟信号每个采样周期节省300μs;采用CPLD代替标准逻辑器件实现各种逻辑功能,简化了硬件电路的设计,提高了控制系统集成度。实际应用表明,该系统能够满足掘进机正常生产的要求,具有较强的实时性和较高的可靠性。

Design of Control System of Roadheader Based on DSP and CPLD

The paper proposed a design scheme of control system of roadheader based on DSP and CPLD,introduced overall design and designs of CPLD data collection module and CPLD logic control module of the system.The system uses CPLD to realize data collection,which saves 12 μs of waiting time of DSP at each AD sampling channel and saves total 300 μs in each AD sampling period of 25 channels and uses CPLD instead of standard logic devices to realize logic functions,which simplifies design of hardware circuit and improves integration of the system.The application showed that the system can meet requirements of normal production of roadheader with good real-time performance and high reliability.