一种板形信号处理系统研究

针对传统板形信号处理系统架构的不足及其成因,提出“信号处理板+上位机软件系统”模型；信号处理板以DSP芯片为核心并配以外围器件及电路,承担高实时性要求的数据处理任务,并将结果实时送至上位机.利用自主研制的设备,通过实验确定板形信号的幅频特性补偿模型及标定系数;通过理论分析,确定适合带钢偏移轧制中心线情况的带钢边部覆盖补偿模型.以上述研究为指导,结合项目需求,自主设计并开发板形信号处理系统,并将其投入到工业现场.研究结果表明:该系统信号处理的精度及实时性达到了生产要求,运行稳定可靠,取得了良好的板形测量及控制效果.信号处理系统架构模型及补偿研究方法对自主研制高性能的板形信号处理系统具有指导意义.

Research on a shape signal processing system

To deal with on the shortcomings and the cause of the shape signal processing traditional system architecture model,"signal processing board & upper machine software" model was proposed.Signal processing board is a circuit board taking the DSP microprocessor as the core and fitting with the peripheral electronic devices and circuits and undertakes some tasks which have upper requirement for real time,and sends the processing result to the upper machine.The compensation models of amplitude-frequency characteristic and calibration coefficients were established by experimentation using the experimental installations developed autonomously,and the compensation model for marginal measuring unit coated by clod strip,which is suitable to the situation pulling to one side,was established by theoretical analysis.Following the guidance of the above research and combining the project requirements,a shape signal processing system was designed and developed,and applied into the field test.The results show that the shape signal processing system meets the requirement of real-time and precision,runs steadily and reliably and has better effect of shape measurement and control.The system architecture model and the research methods of signal compensation are instructive and meaningful to develop the high-quality shape signal processing system autonomously.