复杂控制系统数码管的实时显示技术

THE REAL-TIME DISPLAY TECHNIQUE OF DIGIT TUBES IN COMPLEX COMPUTER CONTROL SYSTEM

介绍了在执行CRT图形显示以及上下位机实时通讯时,控制系统中数码管的平滑显示技术及相应的软件开发方法,解决了因控制系统中某些任务执行时间长,易导致数码管断续显示的矛盾。本文提出的方法非常适用于要求下位机数码管及图形并行显示,以及计算机本身中断优先级少的实时控制及监视系统。该方法在作者开发的印染控制系统中运行状况良好。

This paper represents a smoothing display technique and responsive soft developing method of control system in carrying out CRT graphical display and com- munication of top bottom computers, it solve the contradiction of the display stop of digit tubes because of long running time of some tasks in control system. The method in the paper is very suitable for real-time control and monitoring system which re- quires parallel display of digit tubes and CRT of bottom computer and some comput- ers with only a few interruption priorities, it operates very well in the dying control system which is developed by the author.