基于MB90092的电梯楼层显示器设计

Designing Storey Display of Lift Based on MB90092

介绍了基于MB90092型专用视频字符叠加芯片的电梯楼层显示器的硬件与软件设计,结合双AT89S52核心的单片机系统,实现了将电梯当前所处楼层相关信息动态实时叠加至视频信号的功能,同时还能检测视频信号的有无,从而便于保安监控人员及时处理有关情况。应用结果表明,该系统运行稳定可靠、编程简单、可维护性和可扩充性都较强。

Hardware and software design of a lift storey monitoring display based on MB90092, the dedicated IC text and graphic overlaid IC chip is presented. By combining the dual AT89S52 single chip computer system, the function of overlaying the related dynamic and real time information of the storey of which the lift currently located onto the video signal is implemented. In addition, the system also detects whether there is video signal or not, thus it helps the security guides to deal with specific conditions. The result of application shows that the system is stable, reliable and features simple program, high maintainability and expansibility.