基于键盘交互的液晶分屏显示菜单设计

Design of Split-Screen Display Menu Based on Keyboard Intercrossing

为了实现智能仪表操作面板以最少键盘完成变量显示、参数设置等液晶显示功能,提出了基于4个键盘交互的液晶显示多屏菜单设计方法。采用一键多义的非编码制键盘,用标记转移算法,设计出基于键盘交互的多屏菜单系统。在STC89C54RD+LM12864LFW硬件平台上,进行了多屏菜单结构的汇编程序设计,并具有字符反显,菜单选择,上下翻屏和参数设置等功能。实验结果表明:键盘交互接口简单,占用空间少,操作简便直观,增强了人机交互性能,对智能仪表操作面板人机交互设计具有一定的参考价值。

In order to realize the variable doplay, parameter functions with minimal keyboard of the smart meter operation panel, an intercrossing liquid crystal display （LCD） split--screen display menu design method based on 4 keyboards is presented. Non--coding key- board with key ambiguity is used, the mark transfer algorithm is proposed, and the split--screen menu system based on keyboard interaction is designed. In STC89C54RDq-LM12864LFW hardware platform, assembly program with split--screen menu structure is designed. The functions of character reverse display, menu selectioL, fluctuation turn screen and parameters setting are achieved. The experimental results show that the keyboard interface is of simple, less memory space is taken up and operation is conven- ient and visual, improving the human--computer interactive performance, which has some reference value to human--computer interaction design of the smart meter operation panel.